Stable badminton racket

Abstract

The utility model relates to the field of badminton rackets, in particular to a stable badminton racket which comprises a racket frame, a middle tube and a connecting piece. The connecting piece comprises an outer connecting part, an inner connecting part and a clamping block. During assembly, the clamping blocks on the barrel body are moved and contracted in the through holes to prevent the clamping blocks from protruding on the outer surface of the barrel body, then the barrel body downwards penetrates through the counter bores and then is placed in the connecting holes and the connecting grooves, then the push rod downwards penetrates through the counter bores and the through holes in the barrel body and is placed in the inner threaded holes, and the push rod is inserted between the clamping blocks on the two sides of the through holes in the process. The clamping block is extruded by the push rod, extends outwards along the second clamping groove and is inserted into the first clamping groove, finally the push rod is rotated, the external thread at the bottom end of the push rod is in threaded connection with the internal threaded hole, the head of the push rod is placed in the counterbore, and the racket frame and the middle pipe are connected and fixed through the push rod. By arranging the inner connecting part and the clamping block, the connecting stability of the racket frame and the middle pipe can be enhanced, the anti-falling capacity is improved, and the badminton racket is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the badminton racket field especially point to a kind of stable badminton racket. BACKGROUND

[0002] The existing badminton racket usually adopts T joint to combine racket frame and middle tube, its specific practice is that the three ends of T joint are knitted with racket frame and middle tube respectively, of course, it must be applied to adhesive when knitted, and then carbon fiber outer layer is attached, finally, it is into mold and is processed by hot-pressing forming, the way that the racket frame and middle tube are connected by T joint has the following disadvantages, the combination of the T joint of badminton racket, racket frame and middle tube only uses the combination force of knitted and adhesive, connection is not stable and firm enough, leading to poor anti-dropping ability. SUMMARY

[0003] In view of the above background technology, the utility model provides a kind of stable badminton racket.

[0004] The utility model adopts the following technical scheme:

[0005] A kind of stable badminton racket, it is characterized in that, the badminton racket includes racket frame, middle tube and the connecting piece arranged at the combination of racket frame and middle tube, it is characterized in that, the outer wall of the bottom end of racket frame is equipped with the middle tube installation hole recessed upwards, the middle tube installation hole is compatible with the middle tube, the inner wall of the bottom end of racket frame is equipped with the countersunk hole recessed downwards, and the inner lining block in the bottom end of racket frame is equipped with the through hole, the through hole is used to connect the middle tube installation hole and countersunk hole, the hollow connection groove is formed in the top of middle tube, the first clamping groove is formed in the groove wall of connection groove, the internal thread hole is equipped in the groove bottom of connection groove, after the top of middle tube is inserted into the middle tube installation hole of racket frame, the racket frame and middle tube are connected by the connecting piece, and the connecting piece includes:

[0006] Outer connecting part, the outer connecting part includes cylinder, the through hole is formed in the hollow inside the cylinder, the second clamping groove is formed in the hole wall on both sides of through hole, the second clamping groove is one-to-one corresponding with the first clamping groove, the cylinder is compatible with the connection groove and the through hole;

[0007] Inner connecting part, the inner connecting part includes push rod, the head is equipped in the top of push rod, the first inclined surface is formed in the bottom end of push rod on both sides and is inclined, the first inclined surface is inverted " eight" type structure, and the push rod is compatible with the through hole;

[0008] Clamping block, the clamping block is equipped with a plurality of, the clamping block is compatible with the first clamping groove and the second clamping groove, the clamping block is inserted into the first clamping groove after being retracted in the second clamping groove;

[0009] When the push rod is screwed into the inner threaded hole through the counter sunk hole and the through hole on the barrel, the clamping block is inserted into the first clamping groove.

[0010] As a further improvement, the first clamping groove is arranged on both sides of the connecting hole.

[0011] As a further improvement, a guide sliding groove is arranged on the wall of the connecting slot and the connecting hole, and the guide sliding groove is arranged away from the first clamping groove, and a guide sliding block is arranged on the outer surface of the barrel and is matched with the guide sliding groove, and when the barrel is placed into the connecting hole and the connecting slot through the counter sunk hole, the guide sliding block is inserted into the guide sliding groove.

[0012] As a further improvement, a first magnetic coating is arranged on the outer surface of the clamping block, and a second magnetic coating is arranged on the wall of the second clamping groove, and the first magnetic coating is magnetically attracted to the second magnetic coating.

[0013] As a further improvement, a limiting sliding block is arranged on the outer surface of the clamping block, and a limiting groove is arranged on the wall of the first clamping groove and the second clamping groove and is matched with the limiting sliding block, and when the clamping block is inserted into the first clamping groove through the second clamping groove, the limiting sliding block is slid in the limiting groove.

[0014] As can be seen from the above description of the structure of the utility model, compared with the prior art, the utility model has the following advantages: when assembling, the clamping block on the barrel is first moved inward and is partially shrunk in the through hole to avoid the clamping block being protruded on the outer surface of the barrel, then the barrel is placed into the connecting hole and the connecting slot through the counter sunk hole, and then the push rod is placed into the inner threaded hole through the counter sunk hole and the through hole on the barrel, in the process, the push rod is inserted between the clamping blocks on both sides of the through hole, the clamping blocks are extruded by the push rod and are extended outward along the second clamping groove and are inserted into the first clamping groove, finally, the push rod is rotated to screw the external thread on the bottom end of the push rod with the inner threaded hole, at this time, the head of the push rod is placed into the counter sunk hole, and the racket frame is connected and fixed with the middle tube through the push rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of the utility model.

[0016] Figure 2 is Figure 1 is a structural schematic diagram of the middle A.

[0017] Figure 3 is a partial cross-sectional structural schematic diagram of the racket frame and the middle tube.

[0018] Figure 4 This is a three-dimensional structural diagram of the central tube and connecting parts.

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the central tube.

[0020] Figure 6 This is a three-dimensional structural diagram of the external connecting part and the card block.

[0021] Figure 7 This is a three-dimensional structural diagram of the internal connecting part.

[0022] Figure 8 This is a three-dimensional structural diagram of the external connecting part and the middle tube.

[0023] Figure 9 This is a three-dimensional structural diagram of the push rod after it is inserted into the cylinder and squeezes the clamping block.

[0024] Figure 10 This is a cross-sectional structural diagram of the central tube and connecting parts. Detailed Implementation

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] As attached Figures 1 to 3 As shown, a sturdy badminton racket includes a frame 1, a shaft 2, and a connector 3 located at the junction of the frame 1 and the shaft 2. The outer wall at the bottom of the frame 1 has an upwardly recessed shaft mounting hole 12 that fits the shaft 2. The inner wall at the bottom of the frame 1 has a downwardly recessed countersunk hole 13. A connecting hole 14 is provided on the inner lining block 11 at the bottom of the frame 1, connecting the shaft mounting hole 12 and the countersunk hole 13. During assembly, the top of the shaft 2 is inserted into the shaft mounting hole 12 of the frame 1, and then the connector 3 is connected through the countersunk hole 13 and the connecting hole 14 to connect the frame 1 and the shaft 2.

[0027] For details, see attached. Figures 3 to 10As shown, the middle tube 2 is hollow at the top to form a connecting groove 21, and the groove wall of the connecting groove 21 is provided with a plurality of first clamping grooves 22, and the groove bottom of the connecting groove 21 is provided with an internal threaded hole 23, and the connecting piece 3 comprises an outer connecting part 31, an inner connecting part 32 and a clamping block 315, wherein the outer connecting part 31 comprises a barrel 311, the inside of the barrel 311 is hollow to form a through hole 312, a plurality of second clamping grooves 313 are provided on the hole walls on both sides of the through hole 312, the second clamping grooves 313 correspond one-to-one with the first clamping grooves 22, and each of the second clamping grooves 313 is provided with a clamping block 315, the clamping block 315 is inserted into the first clamping groove 22 after being stretched and retracted in the second clamping groove 313. The inner connecting part 32 comprises a push rod 321, the top end of the push rod 321 is provided with a head part 322, and the barrel 311 is matched with the connecting groove 21 and the through hole 14, the clamping block 315 is matched with the first clamping groove 22 and the second clamping groove 313, and the push rod 321 is matched with the through hole 312. When assembling, first move the clamping block 315 on the barrel 311 inward, partially shrink in the through hole 312, avoid the clamping block 315 protruding on the outer surface of the barrel 311, then put the barrel 311 into the through hole 14 and the connecting groove 21 after passing through the counterbore hole 13 downward, then put the push rod 321 into the internal threaded hole 23 after passing through the counterbore hole 13 and the through hole 312 on the barrel 311 downward, in the process, the clamping block 315 is extruded by the push rod 321, stretched outside along the second clamping groove 313, and inserted into the first clamping groove 22, finally rotate the push rod 321, make the external threads on the bottom end of the push rod 321 threadedly connected with the internal threaded hole 23, at this time, the head part 322 of the push rod 321 is put into the counterbore hole 13, connect and fix the frame 1 and the middle tube 2 through the push rod 321. And first clamping grooves 22 can also be arranged on both sides of the through hole 14 of the frame 1, and clamping blocks 315 matched with them are also arranged on the inner connecting part 32, wherein the arrangement of the inner connecting part 32 and the clamping block 315 can enhance the connection stability of the frame 1 and the middle tube 2, and make the badminton racket more stable.

[0028] Further, as shown in the accompanying drawings Figure 5 , Figure 6 and Figure 8As shown, guide grooves 24 are provided on both the wall of the connecting groove 21 and the wall of the connecting hole 14. These guide grooves 24 are positioned to avoid the first retaining groove 22. A guide slider 317 is provided on the outer surface of the cylinder 311. This guide slider 317 is adapted to the guide groove 24. When the cylinder 311 passes downwards through the countersunk hole 13 and is placed into the connecting hole 14 and the connecting groove 21, the guide slider 317 inserts into the guide groove 24. The inner wall of the guide groove 24 guides the outer wall of the guide slider 317, preventing the cylinder 311 from rotating during insertion into the connecting hole 14 and the connecting groove 21. This ensures that after the cylinder 311 is inserted into the connecting hole 14 and the connecting groove 21, the second retaining groove 313 and the first retaining groove 22 can correspond one-to-one, thus ensuring that the subsequent retaining block 315 can be smoothly inserted into the first retaining groove 22. During this process, there is no need to adjust the insertion angle of the cylinder 311, accelerating the assembly speed. Additionally, as shown in the attached... Figure 7 and Figure 10 As shown, the bottom end of the push rod 321 is inclined on both sides to form two first inclined surfaces 323. The two first inclined surfaces 323 have an inverted "V" shape structure. The first inclined surfaces 323 can ensure that the push rod 321 can be smoothly inserted between the locking blocks 315 on both sides of the through hole 312 during the process of inserting the push rod 321 into the through hole 312 on the cylinder 311, and ensure that the push rod 321 can squeeze the locking blocks 315, so that the locking blocks 315 can move and be inserted into the first locking groove 22.

[0029] It is worth mentioning that, as shown in the attached document Figure 3 , Figure 5 and Figure 6 As shown, the outer surface of the card block 315 is provided with a first magnetic coating, and the groove wall of the second card slot 313 is provided with a second magnetic coating. The first magnetic coating and the second magnetic coating are magnetically attracted to each other. By utilizing the magnetism between the first magnetic coating and the second magnetic coating, the card block 315 can be stably placed in the second card slot 313 without restricting the movement of the card block 315 in the second card slot 313. On the one hand, it prevents the card block 315 from easily falling out of the second card slot 313 during the movement and assembly of the cylinder 311. On the other hand, after the push rod 321 squeezes the card block 315, the card block 315 can move smoothly and be inserted into the first card slot 22. In addition, the outer surface of the locking block 315 is provided with a limiting slider 316, and the first locking groove 22 and the second locking groove 313 are both provided with limiting grooves 314. The limiting grooves 314 are adapted to the limiting sliders 316. When the locking block 315 is inserted into the first locking groove 22 in the second locking groove 313, the limiting slider 316 slides in the limiting groove 314. The limiting effect of the inner wall of the limiting groove 314 on the outer wall of the limiting slider 316 can prevent the locking block 315 from rotating during the process of moving and inserting into the first locking groove 22, so that the locking block 315 can be better connected with the cylinder 311 or the middle tube 2.

[0030] In summary, in the assembling, the clamping block 315 on the cylinder body 311 is firstly moved inward and partially shrunk in the through hole 312 to avoid the clamping block 315 protruding on the outer surface of the cylinder body 311, then the cylinder body 311 is placed into the connecting hole 14 and the connecting groove 21 after passing through the counterbore 13 downward, then the push rod 321 is placed into the internal thread hole 23 after passing through the counterbore 13 and the through hole 312 on the cylinder body 311 downward, in the process, the push rod 321 is inserted between the clamping blocks 315 on both sides of the through hole 312, the clamping block 315 is extruded by the push rod 321 and extends outward along the second clamping groove 313 and is inserted into the first clamping groove 22, finally the push rod 321 is rotated to make the external thread on the bottom end of the push rod 321 threadedly connected with the internal thread hole 23, at this time, the head 322 of the push rod 321 is placed into the counterbore 13, the racket frame 1 and the middle tube 2 are connected and fixed through the push rod 321. The setting of the internal connecting part 32 and the clamping block 315 can enhance the connecting stability of the racket frame 1 and the middle tube 2, improve the anti-dropping capability and make the badminton racket more stable.

[0031] The above is only the specific implementation manner of the present application, but the design concept of the present application is not limited to this, any non-essential change of the present application by using the concept should belong to the behavior of infringing the protection range of the present application.

Claims

1. A stable badminton racket comprising a racket frame, a shaft and a connector provided at the joint of the racket frame and the shaft, characterized in that, The outer wall of the bottom end of the frame is provided with an upwardly recessed middle tube mounting hole, which is matched with the middle tube, the inner wall of the bottom end of the frame is provided with a downwardly recessed countersunk hole, and the inner lining block in the bottom end of the frame is provided with a through hole for connecting the middle tube mounting hole and the countersunk hole, the top of the middle tube is hollow to form a connecting groove, a plurality of first clamping grooves are formed in the groove wall of the connecting groove, and an inner threaded hole is formed in the groove bottom. The outer connecting part includes a barrel, the barrel is hollow to form a through hole inside, a plurality of second clamping grooves are formed in the hole walls on both sides of the through hole, the second clamping grooves correspond to the first clamping grooves one by one, the barrel is matched with the connecting groove and the through hole; The inner connecting part includes a push rod, the top end of the push rod is provided with a head, the bottom end of the push rod is inclined to form two first inclined surfaces, the two first inclined surfaces are in inverted "8" shape structure, and the push rod is matched with the through hole; A plurality of clamping blocks are arranged, the clamping blocks are matched with the first clamping grooves and the second clamping grooves, the clamping blocks are inserted into the first clamping grooves after being telescoped in the second clamping grooves; Wherein, the barrel is inserted into the through hole and the connecting groove after passing through the countersunk hole downward, the clamping blocks are inserted into the first clamping grooves after the push rod is threadedly connected with the inner threaded hole after passing through the countersunk hole and the through hole in the barrel.

2. A stable badminton racket as claimed in claim 1, wherein: The first clamping grooves are also arranged on both sides of the through hole.

3. A stable badminton racket as claimed in claim 1, wherein: A guide sliding groove is formed in the groove wall of the connecting groove and the hole wall of the through hole, the guide sliding groove is arranged away from the first clamping grooves, a guide sliding block is arranged on the outer surface of the barrel, the guide sliding block is matched with the guide sliding groove, and the guide sliding block is inserted into the guide sliding groove when the barrel is inserted into the through hole and the connecting groove after passing through the countersunk hole downward.

4. A stable badminton racket as claimed in claim 1, wherein: A first magnetic coating is arranged on the outer surface of the clamping block, a second magnetic coating is arranged on the groove wall of the second clamping groove, and the first magnetic coating and the second magnetic coating are magnetically attracted.

5. A stable badminton racket as claimed in claim 1, wherein: A limiting sliding block is arranged on the outer surface of the clamping block, limiting grooves are arranged on the groove walls of the first clamping grooves and the second clamping grooves, the limiting grooves are matched with the limiting sliding block, and the limiting sliding block slides in the limiting grooves when the clamping block is inserted into the first clamping grooves after being telescoped in the second clamping grooves.

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