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Badminton racket repair method
People who often play badminton will find that rackets always have various problems. For example: the thread is broken, the racket is cracked, the handle is separated from the racket, and so on. What should we do when we encounter these problems? You can't throw it away and buy it! Next, I will teach you the repair skills of rackets and the knowledge of the number of pounds of rackets.
Badminton racket repair method
No matter what is used for a long time, there will be various minor faults, and so will badminton rackets. Badminton rackets can also be damaged after a period of use.
(1) The beat line is broken; (2) The racket frame and racket shaft are loose; (3) the handle is separated from the racket shaft; (4) the racket shaft is broken; (5) The racket frame is broken; (6) The handle is broken.
I. Repair of Line Breakage
(1) tool
Needle cone, badminton thread, scissors.
(2) Preparation work
1. Needle cone: Needle cone is generally made of needle cone and used for binding test papers or repairing shoes. Cut off the depression in the head of the needle body, and then re-grind the head of the needle body into a pointed cone. The taper is suitable for squeezing the thread after it is inserted into the threading hole of the racket frame.
Another method is to take 2 cm× 2 cm× 6 cm wood blocks and 7 cm bicycle battens, trim the battens into cylindrical or rounded rectangles with a knife, then place the repaired battens vertically, nail a hole with a depth of about 2 cm in the center of the upper end of the battens with a nail slightly thinner than the battens, then nail the battens into the holes as appropriate, and finally polish the left end of the battens into a sharp cone.
2. Feather line: the racket line is broken, and the first condition for repair is a new line. You can buy thread from the store or sell it online. Of course, in order to save money, you can also remove the good lines on the beat that was broken before.
(3) Methods
1. Handle disconnection. First, pull the broken racket out of the racket frame, tighten the thread outward, and insert the needle cone into the threading hole of the pull wire to squeeze and fix it to prevent the thread from slipping.
Then thread the thread ends into the adjacent thread holes, tie a knot at the edge of the good thread and pull out the needle cone, tie other broken ends according to the above method, and finally cut off the redundant thread ends.
2. Fill in the blanks. First, one end of the repaired feather is knotted (the knot is larger than the threading hole so as not to be too small to slip from the threading hole), and the other end passes through the vacant threading hole, and then each string is crossed and woven one by one in the vertical direction, and then passes through the threading hole on the other side. After tightening, fix it firmly with a needle cone to prevent the worn string from loosening.
Then punch holes from the side gaps, and so on, always put on the empty strings, and finally tie them up and fix them. The method is the same as "handling broken wires", so that the broken wires will be repaired.
(4) Suggestions
1. One end of the feather used for repairing can be tied to the unbroken edge of the broken edge before repairing.
2. You can directly tie the repair line and the broken head in the plane of the racket, and then continue to repair.
3. After each threading hole is tightened, it should be firmly inserted with a needle cone, so as to avoid the looseness of the mesh surface caused by sliding.
4. If two needles and cones are prepared to be used alternately, the repair will be more convenient.
Second, repair the handle and shaft separately.
(1) Simple fixing method
1. Features: quick and convenient, with good effect, but after a long time, the glue will gradually fail, resulting in the separation of the racket handle and the racket shaft.
2. Tools: AB glue, electrical tape.
3. Method: (1) Cleaning: Remove the tapered plastic protective sleeve at the upper mouth of the racket handle to expose the wooden round hole socket of the racket handle.
(2) Glue: Squeeze a certain amount of AB glue to mix and stir, then put a proper amount of glue into the socket of the racket handle, and then apply the glue to the socket below the racket handle.
(3) Connection: Insert the lower part of the racket shaft into the socket of the racket handle, and adjust the position of the racket frame surface and the racket handle, so as not to affect the use because the racket handle and the racket frame surface are uneven.
(4) Winding: Use electric tape to wind the racket handle and the racket shaft into a whole to avoid scratching.
(2) Pin fixing method
1. features: simple operation, and the repair effect of needle fixation is far better than that of simple fixation. Even if the glue fails for a long time, there will be no problem of separation between the racket handle and the racket shaft, unless the racket handle and the racket shaft are broken and can not be used again.
2. Tools: AB glue, 8 nails, hammer, electrical tape.
3. Method: (1) Cleaning: Remove the tapered plastic protective sleeve at the upper mouth of the racket handle and the adhesive tape wound on the handle.
(2) Flattening: put the racket frame flat, and beat the end of the racket handle with a hammer about 2 cm to make the round aluminum alloy racket handle slightly flat. This makes the connection stronger and prepares for nailing.
(3) Sizing is the same as "simple fixing method".
(4) Connection is the same as "simple fixing method".
(5) Nailing needle: Take an iron nail with a length of 8 minutes and nail it vertically downward at the center about 3 cm away from the opening of the handle until the nail is exposed from directly below, indicating that the nail has passed through the handle. If the nail is biased, pull out the nail and re-nail it; After nailing, knock the nail cap and nail tip into the wood of the handle to prevent scratching.
6) The whole racket handle, the racket handle opening and the racket rod are wound and connected into a whole by conductive adhesive tape to protect the palm.
(3) Suggestions
1. Generally, the insertion depth of wooden bat handle is about 3.5 cm, and the deeper the insertion hole, the stronger the firmness of the bat. Therefore, it is advisable to use a drill with a diameter of 7 mm to drill to a depth of 4 ~ 5 cm. ..
2. If the taper of some racket handles is too thin or cracked, it is better to cut off a little with a saw and then drill deeper with a drill with a diameter of 7 mm.
3. When nailing, in order to prevent the nail from bending, you can clamp the nail with pliers and then knock.
Third, the repair of racket handle fracture
(A) Characteristics
The repair method is simple and the effect is good; The disadvantage is that it increases the weight of the racket.
(2) Tools
5 inch nails (or round steel with a diameter of 5 mm), AB glue, wire cutters, hammers, files, scissors, cans or tin cans.
(3) Preparation
1. Rod core manufacturing: cut off the nail cap of the 5-inch nail with wire cutters and a hammer. If round steel with a diameter of 5 mm is used, cut about 10 cm.
2. Making envelope paper: Cut cans (or tin cans) into strips of 22 mm× 50 mm with scissors as envelope paper.
(4) Method
1. Deburring: smooth the burr on the fracture with a file to avoid scratching.
2. Rounding: Insert the nails into the mouths of the broken parts of two rackets and rotate them back and forth to restore the broken parts to their original state as much as possible.
3. Glue: Squeeze a certain amount of AB glue, mix and stir, then add a proper amount of glue into the holes on both sides of the racket handle, and then apply the glue to one end of the "stick core".
4. Connection: Hold the end of the "stick core" without glue, insert the "stick core" with one end coated with glue into one of the fracture holes of the racket handle, then coat the remaining "stick core" with glue, and then insert it into the fracture hole on the other side of the racket handle to make the fracture holes at both ends as close as possible.
5. Envelope: Take a piece of envelope paper, first wind it into a cylinder on the racket handle, then apply glue to the joint of the racket handle fracture, and then wrap the envelope paper rolled into a cylinder at the joint of the fracture. In order to make the envelope piece stick to the racket more closely, use a rubber band or thread to tie it along the outer ring of the envelope for 10 minutes, and then take it off after the glue has solidified.
(5) Suggestions
1. The nails (or round steel) put into the racket handle should be distributed in the broken pipes at both ends at equal intervals.
2. The "pole core" can be replaced by cutting bamboo into cylinders.
3. If the "rod core" is a nail or round steel, the fifth step of repairing the envelope can be omitted.
4. If "envelope" is added, in order to avoid being scratched by the burr of the envelope, it can be wrapped with adhesive tape.
Fourthly, the repair of broken racket frame.
(A) Characteristics
There are relatively many repair methods, and the effect is better after repair.
(2) Tools
1.5 inch nails, AB glue, wire cutters, hammers and files.
(3) Preparation
Use wire cutters and hammers to cut off the head of the 1.5 inch nail as the "rod core".
(4) Method
1. Stripping: Remove all the racket strings in the racket frame.
2. Deburring: Clean up the residue on the fracture surface and file it with a file to avoid scratching.
3. Piping: Insert the nails into the mouths of the damaged parts of the two frames and rotate them back and forth, so as to restore the damaged parts to their original state and keep the two channels in the frames unblocked.
4. Glue: Squeeze a certain amount of AB glue, mix and stir, then add a proper amount of glue into the holes on both sides of the racket frame, and then apply the glue to one end of the two "stick cores".
5. Connection: Hold one end of the "stick core" without glue, insert one end of two "stick cores" with glue into the upper and lower channels of one racket frame fracture respectively, then apply glue on the surface of the remaining "stick core", insert it into another racket frame fracture, try to close the fracture at both ends as much as possible, then press and fix it for 65,438+00 minutes, and then release it after the glue solidifies.
Note: when the fracture of the racket frame is just between the two threading holes, use the above connection. However, if the fracture is just at the threading hole, when connecting the "rod cores", put the plastic pipe of the threading hole between the two "rod cores" so as not to affect the pull wire of the racket frame.
6. Stay: Re-thread the stay with the feather line according to the original style. Please refer to the repair method of "broken line" for specific methods.
(5) Suggestions
1. The "rod core" should be bent according to the arc of the fracture position of the racket frame.
2. In order to ensure the high adhesive strength of the glue, pull the wire after 24 hours of connection.
3. In order to make the broken joint more firm, you can wrap the broken joint with cans or tin cans, which is similar to the wrapping method in the fifth step of "mending the broken racket", except that the length and width of the wrapping are different.
4. The gluing in the fourth step and the connection in the fifth step can be integrated, that is, one end of the fracture is coated with glue, and then two "rod cores" are inserted, and the other fracture is connected in the same way after the glue is solidified.
V. Repair of broken racket handle
(1) tool
AB glue, 7 mm diameter drill, electric drill, saw, knife.
(2) Phenomenon analysis
1. The most common fracture of the racket handle is the taper wood, which can be directly repaired.
2. If it is rarely broken from the transverse waist of the handle, the handle will be scrapped, and it can be replaced with a good handle, which can't be repaired, or the log handle of the mop will be discarded.
(3) Methods
1. Cleaning: Remove the conical plastic cover at the top of the racket handle and the adhesive tape wound on the handle.
2. Sawing: If the tapered mouth of the racket handle is broken, saw off the broken part with a saw, then drill a hole about 4 cm long with an electric drill, and cut the hole into a cone with a knife; If the wooden handle of the abandoned mop is used instead, the wooden handle of 18cm should be sawed off, and 4cm should be drilled from the center of one end with an electric drill, and gradually tapered along the port with a knife.
3. The racket shaft is firmly connected with the racket shaft through the repair method of "the racket shaft is separated from the racket shaft".
(4) Suggestions
1. It is best to replace the handle directly on a completely scrapped racket.
2. If the log handle of the abandoned mop is used as the handle, in order to shake hands conveniently, the log handle can be planed into the original handle shape with a planer.
Badminton racket pound
Pounds refers to the unit that indicates the tension of the racket frame after threading. It is also the most direct parameter used by amateurs to measure the quality of rackets. The number of pounds has different meanings for different fans, and different rackets also have a range of pounds that is most suitable for the performance of rackets. The following will analyze in detail the relationship between the pound and the racket, and the relationship between the pound and people.
The relationship between pound and racket
Generally speaking, the average entry-level racket can only bear about 22-24 kg, while the amateur at the primary level is only suitable for this range. A slightly better racket can generally weigh about 24-26 kg. High-end rackets on the market, that is, rackets with a maximum weight of about 30 kg and a weight of more than 30 kg, can be sold at a discount of 70% as long as they are slightly well-known brands.
So, the more the racket can bear high pounds, does it mean that the racket is more valuable? The answer is yes. To bear a high-pound racket, we will pay attention to the quality of the racket in many aspects during production, and the requirements will naturally be stricter and the material will naturally be better, which will increase the production cost of the racket.
Some friends may say, "I'm not a professional, why buy such a good racket?" It is enough to bear 26. " Having said that, they have neglected one thing, or have no concept at all, and that is loss.
Any substance is lossy, and the racket is no exception. If a racket that can bear 26 Jin is compared with a racket that can bear 30 Jin, the loss of the former will definitely be greater than that of the latter under the premise of pulling 25 Jin, that is to say, the former may not be able to bear the pulling force of 25 Jin after pulling 25 Jin for 4-5 times, so it is necessary to reduce the number of pounds, otherwise there will be the danger of cracking the racket frame.
The latter can bear up to 30 Jin, and there is a great buffer between the actual 25 Jin and 30 Jin, so the loss is relatively reduced, ensuring that the racket is about 4 times more than the former and the chance of reaching 25 Jin.
On the other hand, if the highest pound can only bear 26 pounds, but it has actually been pulled to 25 pounds, because the buffer zone is small, if the racket collision strength is greater at this time, it will cause the racket to be damaged.
However, if it is a racket that can withstand 30 kg, when it is actually pulled to 25 kg, even if there is occasional strong collision, the risk of damage is greatly avoided because of the large buffer interval.
As for the number of pounds and the racket, it is the number of pounds that can make the racket play its best performance. If there is a racket that can bear 30 kg now, the range of pounds that this racket can play its best performance is about 24-26 kg.
Why? This has something to do with the loss mentioned earlier. If we pull the racket to the limit of 30 kg, the toughness of the racket will be reduced, and some properties of the racket will not be brought into play. Just like a car, the most fuel-efficient speed is 90km/h. This is also the case. If the vehicle speed is greater than 90km, it will increase fuel consumption. The faster the speed, the greater the work done by the engine, and the greater the loss.
The racket is the same, so as mentioned earlier, the closer the number of pounds is to the limit, the more likely it is to be damaged during collision. Therefore, the number of pounds that a racket can exert its best performance is within the range of about 4-8 pounds less than the maximum load. If you are used to playing 24-26 kg, you'd better choose a racket that can withstand 30-32 kg at the highest.
Extended content: badminton racket selection skills
Badminton racket selection skills
1. Brand and price concern index: ★★★★★★★
The price and brand of rackets may be the first concern of students. For beginners, the price is between 200 and 500 yuan. In terms of brand selection, Nissan's YY(Yonex) is the best at present, but its price is higher than that of 500 yuan. Victor, Li Ning and Kaisheng in China are rackets with high credibility and good cost performance, which are suitable for us to use.
2. Style and material concern index: ★★★★★
The color of the racket depends on personal preference. Don't think that people with green, purple and yellow rackets are very powerful. This is purely psychological. In singles, you can choose an extended racket appropriately: if you are good at attacking, you can prefer a heavier medium-hard racket, if you are good at defending, you can choose a lighter one.
As for the material, the choice of material is directly related to the weight and price of the racket. Generally speaking, the all-carbon racket is the lightest, and it is the mainstream material at present, mostly 85-94g, which is generally above 200 yuan, while the weight of the aluminum frame badminton racket is generally above 95g, and the price ranges from tens of yuan to 100 yuan. A racket with the same weight will feel very different in your hand, because the balance point of the racket is different. If the balance point of the racket is closer to the racket head, it is called "head weight". The ball is more powerful but less flexible, which is more suitable for attack and is also the choice of those who are not strong enough. If the balance point of the racket is closer to the handle, it is called "tapping". Although the lightweight badminton racket is more flexible, it is more suitable for defensive control players and speed-seeking golfers. Personally recommend the mainstream all-carbon racket.
3.Payhead attention index: ★★★☆.
At present, the market is roughly divided into round head and square head (IOS). The size of the racket head determines the size of the sweet zone (the best hitting area of the racket face). At present, square head shooting is becoming the mainstream trend because of the large sweet area, but I feel that there is little difference between the two.
4. Stay attention index: ★★★★★☆.
For the racket, pulling is more important. The number of pounds of the pull wire is the tension of the feather line, and the number of pounds is proportional to the tension. The greater the tension, the higher the number of pounds. For most students, in the choice of stay wire, the singles racket is suggested to be 22 kg horizontally and 20 kg vertically; It is suggested that the doubles racket be 24 kg horizontally and 22 kg vertically. Moreover, it is recommended not to choose a feather line with too good elasticity, because it is too thin and easy to break.
5. The attention index of racket handle and racket handle: ★★★★★
Rack: swing the racket. If the hand shakes, it means that the material of the racket is too hard. If the hand does not shake, it means that the racket is elastic. Or, put the racket on the table, take the racket frame out of the table, pull down the head of the racket frame by hand, and then observe the bounce of the racket. If it bounces up and down a lot, it is a good beat. If you swing from side to side, it means that the racket is slightly worse.
Handle: choose the handle according to the size of each person's hand, and it is appropriate to hold the handle comfortably. People with big hands will feel uncomfortable holding thin or square handles; People with small hands can't hold the thick handle firmly. Also, be sure to wrap your hands with glue. There are two kinds of tapes: leather and towels. Love sweating's hand had better choose a towel strip with strong sweat absorption.
Of course, having a racket that suits you and has a reasonable price will help students find more fun in sports. But don't blindly consume too much energy in the choice of rackets. The most important thing is to have a solid skill and have fun.
Problems that must be considered in purchasing badminton rackets
1, the weight of the badminton racket should be appropriate: in fact, the lighter the racket, the better. Although the racket is light and the swing speed is fast, it will feel useless when spiking, which will affect the hitting power.
2. Check the overall structure of the racket: after you get the racket, wave it below to see if it shakes your hand. The brand of the rocker must be that the racket shaft (the joint between the racket handle and the racket head is now made of carbon alloy steel) is too hard; Do not shake hands, indicating that the racket shaft is more elastic.
3. You can choose a badminton racket that suits you according to your actual situation. For example, in singles, it is suitable to choose an extended racket. For offensive players, you should choose a slightly heavier racket with medium hardness. In doubles, it is best to choose a standard length racket. If you are a defensive player, you should choose a lighter racket.
4. Choose the handle according to the size of each person's hand, and the handle should be comfortable. People with big hands will feel uncomfortable holding thin or square handles.
5. See if the strings are symmetrical. Each square composed of crossed strings should be the same size, and the tightness of each string should be consistent.
6. When you get a badminton racket, you should first look at the shape of its racket head. Generally speaking, it can be divided into two types: the traditional egg-shaped racket frame and the square-headed flat-headed racket frame. The shape of the badminton racket determines the size of its sweet zone (the best hitting zone on the racket face), because when the ball falls in the sweet zone, it can give the player enough hitting power and control the ball, so the size of the sweet zone is very important for the player, which can make it easier for the player to hit a high-quality ball.
7. Badminton rackets can be divided into carbon fiber, carbon-aluminum integration, aluminum-iron integration and aluminum-iron separation according to different materials. The choice of material is directly related to the weight and price of the racket. Generally speaking, all-carbon badminton rackets have the lightest weight and are the mainstream materials at present.
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