Badminton racket plug

Abstract

The utility model provides a badminton racket plug. The badminton racket plug comprises a plug body, a transverse block arranged at the top end of the plug body, a racket frame arranged outside the transverse block, a connecting block arranged at the bottom end of the plug body, a middle pipe arranged outside the connecting block, a material locking block arranged at the bottom end of the plug body and containing grooves formed in the two sides of the transverse block. Through the arrangement of the containing groove, the left clamping block and the right clamping block, the left clamping block and the right clamping block enable the transverse block and the interior of the racket frame preform to be clamped and fixed, the disengagement situation is avoided, the bottom end of a plug is matched with the interior of a middle pipe in a screwing-in mode, a connecting block is in threaded fit with a mounting pipe, and a material locking block and a material locking pipe are attached and sealed; the sealing performance of the connecting position of the plug and the middle pipe is improved, a foaming material or epoxy resin is prevented from permeating, the formed racket is not prone to shaking at the connecting position of the middle pipe and the racket frame, higher stability is achieved, and the forming effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sports equipment technical field especially relates to a badminton racket plug. BACKGROUND

[0002] The badminton ball speed is fast, and the sports reaction time is short, which causes the athletes to need to swing the racket quickly in the sports, in order to reduce the sports consumption, the market needs the lightweight racket with the shock attenuation function, the carbon fiber composite material has higher specific modulus and specific strength, is a kind of very excellent structural material, has been widely applied in national defense, industry, construction and other industries, and is very suitable for the demand of weight, strength and torsion resistance in badminton sports, because of the incomparable advantages of carbon fiber composite material, it has been widely applied in badminton racket products, the badminton racket is generally composed of a racket frame, a middle tube and a handle, the racket frame and the middle tube are connected by a tee plug, the badminton racket middle tube is a hollow tubular object, and the racket frame is usually processed by foaming molding technology, the long strip-shaped foaming material is wrapped with carbon fiber prepreg containing epoxy resin, and is rolled into a tubular racket frame preform, a plastic tee plug is used to plug the two ends of the racket frame preform, the remaining end of the tee plug is connected with one end of the middle tube, and then the connection between the racket frame preform and the middle tube is wrapped with prepreg, so that the tee plug is tightly wrapped to avoid falling off, finally, the connected racket frame preform and middle tube are placed in a mold and pushed into a hot table at 150+ / -5 DEG C for heating for about 30 minutes to make the prepreg containing epoxy resin solidify, then the solidified product is taken out after being cooled in a cold table at 40+ / -5 DEG C, and a badminton racket roughcast is obtained, the badminton racket roughcast is subjected to processes such as polishing, drilling, threading and handle assembly, and then is coated with paint, added with a single grain nail, sleeved with a rear sleeve and handle skin to manufacture a complete badminton racket.

[0003] The application number CN220757922U discloses a badminton racket plug and a middle tube, the plug is made of plastic material and includes a top part and a lower part, an inner wall of one end of the middle tube is provided with internal threads, an outer diameter of the lower part of the plug is larger than an inner diameter of the internal threads of the inner wall of the middle tube, so that when the lower part of the badminton racket plug is rotated into the internal threads of the middle tube, external threads on the surface of the lower part of the badminton racket plug are tightly matched with the internal threads of the middle tube, and the top part of the plug is used for inserting into both ends of a racket frame preform.

[0004] The above-mentioned scheme has the following deficiencies in use, the top part of the plug is used for inserting into both ends of the racket frame preform, the arc curvature of the top part of the plug is used for clamping and fixing the two ends of the racket frame preform, and the top part of the plug and the two ends of the racket frame preform cannot be separated due to the lack of the clamping and fixing structure. UTILITY MODEL CONTENTS

[0005] The utility model provides a badminton racket plug, which comprises a plug main body, a cross block arranged at the top end of the plug main body, a racket frame arranged outside the cross block, a connecting block arranged at the bottom end of the plug main body and a middle tube arranged outside the connecting block.

[0006] Locking block, arranged at the bottom end of the plug main body;

[0007] Placement slot, arranged inside both sides of the horizontal block.

[0008] Preferably, the placement slots are arranged in a rectangular array, the inside of the left half of the placement slots on the horizontal block is provided with a left clamping block, the bottom end of the left clamping block is fixedly connected with an inner side wall of the placement slot away from the plug main body, the inside of the right half of the placement slots on the horizontal block is provided with a right clamping block, the bottom end of the right clamping block is fixedly connected with an inner side wall of the placement slot away from the plug main body, and the left clamping block and the right clamping block are axisymmetric.

[0009] Preferably, the inside of the frame is provided with a mounting slot, the inside size of the mounting slot is adapted to the size of the horizontal block, the two side walls of the mounting slot are provided with clamping slots, the clamping slots are arranged in a rectangular array, the inside size of the left half of the clamping slots in the frame is adapted to the size of the left clamping block, and the inside size of the right half of the clamping slots in the frame is adapted to the size of the right clamping block.

[0010] Preferably, the locking block is in the shape of a hollow cylinder, the top end of the connecting block is fixedly connected with the top end of the inside of the locking block, and the inner wall of the connecting block and the outer wall of the locking block are both provided with threads.

[0011] Preferably, the inside of the middle tube is provided with a locking tube, the inside size of the locking tube is adapted to the size of the locking block, the inner wall of the locking block is movably connected with the inner wall of the locking tube through threads, the inside of the locking tube is provided with a mounting tube, the inside size of the mounting tube is adapted to the size of the connecting block, and the inner wall of the mounting tube is movably connected with the outer wall of the connecting block through threads.

[0012] Preferably, the plug main body is in the shape of T.

[0013] Preferably, the frame is in the shape of a hollow arc, and the middle tube is in the shape of a hollow cylinder.

[0014] Preferably, the horizontal block is axisymmetric, and the top end of the horizontal block is provided with an inner recess.

[0015] Beneficial effects:

[0016] 1. By arranging the placement slot, first, the left end of the horizontal block at the top of the plug is inserted into the left end of the inside of the frame preform, during the insertion process, the left clamping block is squeezed into the inside of the placement slot, so that the horizontal block is smoothly inserted into the left end mounting slot, after completely entering the mounting slot, the left clamping block will automatically stretch into the inside of the clamping slot, and then the right end horizontal block is inserted into the right end of the inside of the frame preform according to the same steps, so that the horizontal block is fixedly clamped with the inside of the frame preform and will not be separated.

[0017] 2、Through the setting of the locking block, the bottom end of the plug is matched with the inside of the middle tube in a screwed manner, the sealing between the threads between the connecting block and the mounting tube is good, and there is no softening problem caused by the high-temperature curing process in the subsequent process; when the rigidity of the middle tube is not suitable, the middle tube can also be easily separated from the plug by reverse rotation, so that the middle tube is replaced, and the setting of the inner recess can make the foaming material expand to force the lower part of the plug to expand, form a tighter interference fit with the inner wall of the middle tube, improve the sealing of the connection between the plug and the middle tube, further improve the sealing between the threads between the locking block and the locking tube, prevent the foaming material or epoxy resin from penetrating, and the shaped racket is not easy to shake at the connection between the middle tube and the racket frame, has higher stability, and improves the shaping effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model.

[0019] Figure 2 It is a three-dimensional structure schematic diagram of the left clamping block of the utility model.

[0020] Figure 3 It is a three-dimensional structure schematic diagram of the inside of the locking block of the utility model.

[0021] Figure 4 It is an installation structure schematic diagram of the plug of the utility model.

[0022] Figure 5 It is an internal structure schematic diagram of the racket frame of the utility model.

[0023] Figure 6 It is an internal structure schematic diagram of the middle tube of the utility model.

[0024] Figures 1-6 In the middle, the correspondence between the component name and the drawing number is:

[0025] 1, plug main body; 2, locking block; 3, connecting block; 4, cross block; 5, left clamping block; 6, inner recess; 7, right clamping block; 8, placing groove; 9, racket frame; 10, middle tube; 11, mounting groove; 12, clamping groove; 13, mounting tube; 14, locking tube. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] First embodiment

[0028] As shown in the accompanying Figure 1 and accompanying Figure 6 : a badminton racket plug, comprising a plug body 1, a transverse block 4 arranged at the top end of the plug body 1, a racket frame 9 arranged outside the transverse block 4, a connecting block 3 arranged at the bottom end of the plug body 1, and a middle tube 10 arranged outside the connecting block 3; a locking block 2 arranged at the bottom end of the plug body 1; a placing groove 8 arranged inside both sides of the transverse block 4.

[0029] The placing groove 8 is arranged in a rectangular array, and the inside of each placing groove 8 on the left half of the transverse block 4 is provided with a left clamping block 5, the bottom end of which is fixedly connected to an inner side wall of the placing groove 8 away from the plug body 1; the inside of each placing groove 8 on the right half of the transverse block 4 is provided with a right clamping block 7, the bottom end of which is fixedly connected to an inner side wall of the placing groove 8 away from the plug body 1; the left clamping block 5 and the right clamping block 7 are axisymmetric; during the process of inserting the part of the transverse block 4 at the top of the plug into the preform of the racket frame 9, the left clamping block 5 and the right clamping block 7 are squeezed into the inside of the placing groove 8, so that the transverse block 4 is smoothly inserted into the installation groove 11.

[0030] The inside of the racket frame 9 is provided with an installation groove 11, the size of which is matched with the size of the transverse block 4; the two side walls of the installation groove 11 are provided with clamping grooves 12 arranged in a rectangular array; the size of the inside of the left half of the clamping grooves 12 in the racket frame 9 is matched with the size of the left clamping block 5; the size of the inside of the right half of the clamping grooves 12 in the racket frame 9 is matched with the size of the right clamping block 7; after being completely inserted into the installation groove 11, the left clamping block 5 and the right clamping block 7 will automatically stretch into the inside of the clamping grooves 12, so that the transverse block 4 is clamped and fixed with the preform inside the racket frame 9 and will not be separated.

[0031] Second embodiment

[0032] As shown in the accompanying Figure 1 and accompanying Figure 6 : the shape of the locking block 2 is a hollow cylinder, the top end of the connecting block 3 is fixedly connected to the inside top end of the locking block 2, the inner wall of the connecting block 3 and the outer wall of the locking block 2 are both provided with threads, the bottom end of the plug is matched with the inside of the middle tube 10 in a screw-in manner, when the rigidity of the middle tube 10 is not properly selected, the middle tube 10 can also be easily separated from the plug by reverse rotation, so that the middle tube 10 can be replaced.

[0033] The inside of the middle tube 10 is provided with a locking tube 14, the size of which is matched with the size of the locking block 2; the inner wall of the locking block 2 and the inner wall of the locking tube 14 are movably connected through threads; the inside of the locking tube 14 is provided with an installation tube 13, the size of which is matched with the size of the connecting block 3; the inner wall of the installation tube 13 and the outer wall of the connecting block 3 are movably connected through threads; the sealing between the threads between the locking block 2 and the locking tube 14 further improves the sealing performance of the connection between the plug and the middle tube 10, preventing the foaming material or epoxy resin from penetrating.

[0034] The plug body 1 is T-shaped, and the plug is connected and fixed with the middle tube 10 and the frame 9

[0035] The frame 9 is arc-shaped with an inner cavity, and the middle tube 10 is cylindrical with an inner cavity, and the frame 9 and the middle tube 10 are made of carbon fiber.

[0036] The cross block 4 is axisymmetric, and the top end of the cross block 4 is provided with an inner recess 6, which can make the foaming material expand to force the lower part of the plug to expand, so as to form a more compact interference fit with the inner wall of the middle tube 10, thereby improving the sealing performance of the connection between the plug and the middle tube 10.

[0037] Working principle: first, the left end of the cross block 4 at the top of the plug is inserted into the left end of the frame 9 preform, and during the insertion process, the left clamping block 5 is squeezed into the placement groove 8, so that the cross block 4 is smoothly inserted into the left end mounting groove 11, and after completely entering the mounting groove 11, the left clamping block 5 will automatically extend into the clamping groove 12, and then the right end of the cross block 4 is inserted into the right end of the frame 9 preform in the same way, so that the cross block 4 is clamped and fixed with the frame 9 preform and cannot be separated, the bottom end of the plug is screwed into the inner part of the middle tube 10, the sealing performance between the threads between the connecting block 3 and the mounting tube 13 is good, and there is no problem of softening caused by high-temperature curing process in the subsequent process; when the rigidity of the middle tube 10 is not properly selected, the middle tube 10 can also be easily separated from the plug by reverse rotation, so that the middle tube 10 can be replaced, and the setting of the inner recess 6 can make the foaming material expand to force the lower part of the plug to expand, so as to form a more compact interference fit with the inner wall of the middle tube 10, thereby improving the sealing performance of the connection between the plug and the middle tube 10; the sealing between the threads between the locking block 2 and the locking tube 14 is good, which further improves the sealing performance of the connection between the plug and the middle tube 10, prevents the foaming material or epoxy resin from penetrating, and the shaped racket is not easy to shake at the connection between the middle tube 10 and the frame 9, so as to have higher stability and improve the shaping effect.

Claims

1. A badminton racket plug, characterized in that, It comprises a plug body (1), a cross block (4) arranged at the top end of the plug body (1), a frame (9) arranged outside the cross block (4), a connecting block (3) arranged at the bottom end of the plug body (1), and a middle pipe (10) arranged outside the connecting block (3): The lock block (2) is arranged at the bottom end of the plug body (1). The placing groove (8) is arranged inside the cross block (4).

2. A shuttlecock as claimed in claim 1, wherein: The left half of the placing groove (8) is arranged inside the cross block (4), and the right half of the placing groove (8) is arranged inside the cross block (4).

3. The badminton racket plug as claimed in claim 1, wherein: The installation groove (11) is arranged inside the frame (9), and the size of the installation groove (11) is matched with the size of the cross block (4).

4. The badminton racket plug as claimed in claim 1, wherein: The shape of the lock block (2) is hollow cylindrical, the top end of the connecting block (3) is fixedly connected with the top end of the lock block (2), and the inner wall of the connecting block (3) and the outer wall of the lock block (2) are provided with threads.

5. The badminton racket plug as claimed in claim 1, wherein: The size of the lock block (2) is matched with the size of the lock block (2), the inner wall of the lock block (2) is movably connected with the inner wall of the lock block (2) through threads, and the installation pipe (13) is arranged inside the lock block (14).

6. The badminton racket plug as claimed in claim 1, wherein: The shape of the plug body (1) is T-shaped.

7. The badminton racket plug as claimed in claim 1, wherein: The shape of the frame (9) is arc-shaped, and the shape of the middle pipe (10) is hollow cylindrical.

8. The badminton racket plug as claimed in claim 1, wherein: The cross block (4) is axisymmetric, and the top end of the cross block (4) is provided with an inner recess (6).

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