A badminton racket

Abstract

The utility model relates to the technology field of badminton racket, and disclose a badminton racket handle, including handle, handle inside slidingly connected with handle, handle inside rotationally connected with rotating seat, and handle is connected with rotating seat screw thread, and handle one end fixedly connected with first threaded rod, and first threaded rod surface screw thread connection has the connecting barrel, and the connecting barrel one end fixed mounting has the racket head, and the connecting barrel inside rotationally connected with the connecting seat, and the connecting barrel inside slidingly connected with the elastic seat, and elastic seat is connected with the one end of connecting seat and is penetrated, and elastic seat is connected with the one end of first threaded rod and slides, and the one side of connecting barrel is equipped with transmission part, and transmission part is connected with the transmission of connecting seat, and the situation of first threaded rod fracture and being stuck into the connecting barrel is aimed at, and through the cooperation of transmission part, connecting seat and elastic seat, the residual components can be easily taken out, avoid the secondary damage caused by violent disassembly, and the maintenance difficulty is reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of badminton racket technology, specifically a badminton racket shaft. Background Technology

[0002] In badminton, the racket is a core piece of equipment, and its structural design directly affects its performance and lifespan. Currently, most badminton rackets on the market adopt a one-piece design where the shaft and frame are integrated. This design offers certain manufacturing conveniences and, to a certain extent, ensures the overall rigidity and stability of the racket.

[0003] However, existing badminton racket shafts have several drawbacks. First, because the shaft and frame are largely an integral, non-separable structure, damage to any part of the shaft or frame (such as shaft breakage or frame deformation) renders the entire racket unusable, requiring replacement and leading to resource waste. Second, the connection between the shaft and frame is a stress-concentrated area, making it prone to breakage due to severe impacts or prolonged fatigue. When this connection breaks, the remaining shaft portion often becomes stuck inside the frame, making it difficult to remove and reducing practicality. Utility Model Content

[0004] This invention provides a badminton racket shaft that, when a single component of the shaft or head is damaged, eliminates the need to replace the entire racket; only the damaged section needs to be replaced. This significantly reduces resource waste and user expenses, and solves the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a badminton racket shaft, including a handle, a racket arm slidably connected inside the handle, a rotating seat rotatably connected inside the handle, and the racket arm threadedly connected to the rotating seat. A first threaded rod is fixedly connected to one end of the racket arm, a connecting cylinder is threadedly connected to the surface of the first threaded rod, a racket head is fixedly installed at one end of the connecting cylinder, a connecting seat rotatably connected inside the connecting cylinder, an elastic seat slidably connected inside the connecting cylinder, and the elastic seat is slidably connected to one end of the connecting seat. The elastic seat is slidably connected to one end of the first threaded rod, and a transmission component is installed on one side of the connecting cylinder, and the transmission component is kinetically connected to the connecting seat.

[0006] Preferably, a second threaded rod is fixedly installed at one end of the racket handle, and two limiting blocks are fixedly installed on the surface of the racket handle, and both limiting blocks are slidably connected to the handle.

[0007] Preferably, the rotating seat includes a threaded cylinder and a rotating block fixedly installed at one end of the threaded cylinder. The threaded cylinder is threadedly connected to the second threaded rod, and the rotating block is rotatably connected to the handle.

[0008] Preferably, a round block is fixedly installed at one end of the first threaded rod, and a positioning groove is provided on one side of the round block.

[0009] Preferably, the connecting seat includes a rotating column and a first gear fixed on the surface of the rotating column. Two rotating rings are fixedly installed on the surface of the rotating column, and both rotating rings are rotatably connected to the connecting cylinder.

[0010] Preferably, the elastic seat includes a slide rod and two limiting strips fixed to the surface of the slide rod, and the slide rod and the two limiting strips are slidably connected to the rotating column. A circular plate is fixedly installed at one end of the slide rod, and a spring is fixedly installed on one side of the circular plate. One end of the spring is fixedly connected to the rotating column. Two inserts are fixedly installed at one end of the slide rod, and the inserts are slidably connected to the positioning groove.

[0011] Preferably, the transmission component includes a frame plate and a second gear rotatably connected inside the frame plate. The frame plate is connected through to one side of the connecting cylinder, and the second gear meshes with the first gear.

[0012] This utility model has the following beneficial effects: 1. Through the threaded transmission design of the rotating base and the shaft, the overall length of the shaft can be flexibly adjusted, which solves the problem that traditional fixed-length rackets are difficult to adapt to users of different heights, arm lengths or different playing styles, and can meet the needs of diverse usage scenarios.

[0013] 2. The shaft and head are connected by threads to form a detachable segmented structure. When a single part is damaged, there is no need to replace the entire racket. Only the damaged part needs to be replaced, which greatly reduces resource waste and user expenses, and facilitates daily maintenance.

[0014] 3. In the case of the first threaded rod breaking and getting stuck in the connecting cylinder, the remaining parts can be easily removed by the cooperation of the transmission component, the connecting seat and the elastic seat, avoiding secondary damage caused by violent disassembly and significantly reducing the difficulty of maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0017] Figure 3 This is a schematic diagram of the racket shaft structure of this utility model.

[0018] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point B.

[0019] Figure 5 This is a schematic diagram of the elastic seat structure of this utility model.

[0020] In the diagram: 1. Handle; 2. Barrel; 21. Second threaded rod; 22. Limiting block; 3. Rotating seat; 31. Threaded cylinder; 32. Rotating block; 4. First threaded rod; 41. Round block; 42. Positioning groove; 5. Connecting cylinder; 6. Bar head; 7. Connecting seat; 71. Rotating column; 72. First gear; 73. Rotating ring; 8. Elastic seat; 81. Slide rod; 82. Limiting strip; 83. Round plate; 84. Spring; 85. Insert block; 9. Transmission component; 91. Frame plate; 92. Second gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] This embodiment aims to address the problem of inconvenient adjustment of the racket shaft 2's length, making it difficult to meet the length requirements of different usage scenarios. Please refer to [link / reference]. Figure 1-2 A badminton racket shaft includes a handle 1, a shaft 2 slidably connected inside the handle 1, and a rotating seat 3 rotatably connected inside the handle 1. The shaft 2 is threadedly connected to the rotating seat 3. By rotating the rotating seat 3, the shaft 2 is driven to extend and retract axially along the handle 1 via threaded transmission. The overall length can be flexibly adjusted according to the user's height, arm length, or playing style, solving the problem of poor adaptability of traditional fixed-length rackets. Adjustment can be completed manually by rotating the rotating seat 3 without tools, making it suitable for quick adaptation to different scenarios in competitions or training. A first threaded rod 4 is fixedly connected to one end of the shaft 2. A connecting cylinder 5 is threaded onto the surface, and a racket head 6 is fixedly installed at one end of the connecting cylinder 5. The connecting cylinder 5 serves as the connecting carrier between the racket head 6 and the first threaded rod 4. A rigid connection is achieved through threaded engagement to ensure efficient power transmission during the shot and to prevent the connection between the racket head 6 and the racket shaft 2 from loosening due to excessive force. A connecting seat 7 is rotatably connected inside the connecting cylinder 5, and an elastic seat 8 is slidably connected inside the connecting cylinder 5. The elastic seat 8 is connected through one end of the connecting seat 7 and is slidably connected to one end of the first threaded rod 4. A transmission component 9 is installed on one side of the connecting cylinder 5, and the transmission component 9 is connected to the connecting seat 7 in a transmission manner.

[0023] The racket shaft 2 and the handle 1 are connected by a sliding structure, and the bottom of the racket shaft 2 is threadedly connected to the rotating seat 3. When the length needs to be adjusted, the rotating seat 3 inside the handle 1 is rotated. The threaded transmission will cause the racket shaft 2 to move along the axial direction of the handle 1. When the rotating seat 3 is rotated clockwise, the racket shaft 2 extends outward and the overall length increases. When rotated counterclockwise, the racket shaft 2 retracts into the handle 1 and the length shortens. Through the precise engagement of the threads, the length of the racket shaft 2 can be steplessly adjusted to meet the length requirements of different usage scenarios.

[0024] The racket shaft 2 and racket head 6 are detachably connected. During assembly, the first threaded rod 4 is screwed into the connecting cylinder 5, and the racket shaft 2 and racket head 6 are rigidly connected by the self-locking thread. During disassembly, the racket shaft 2 or racket head 6 is rotated in the opposite direction to separate the first threaded rod 4 from the connecting cylinder 5, thus completing the separation of the racket shaft 2 and racket head 6. When the connection between the first threaded rod 4 and the connecting cylinder 5 breaks, the remaining first threaded rod 4 will be stuck inside the connecting cylinder 5 due to the thread engagement. The elastic seat 8 always presses against the broken end face of the first threaded rod 4 with its own elasticity to ensure that the two will not disengage during rotation. Rotating the external transmission component 9 drives the connecting seat 7 to rotate. The connecting seat 7 and the elastic seat 8 are in sliding fit but rotate synchronously. Therefore, the elastic seat 8 will drive the first threaded rod 4 to rotate synchronously with the connecting seat 7. Since the first threaded rod 4 and the connecting cylinder 5 still maintain threaded fit, the first threaded rod 4 rotated in the opposite direction will gradually withdraw along the axial direction of the connecting cylinder 5, and finally the remaining parts can be removed. Through the threaded transmission design of the rotating seat 3 and the racket shaft 2, the overall length of the racket shaft 2 can be flexibly adjusted.

[0025] This design solves the problem of traditional fixed-length rackets being difficult to adapt to users of different heights, arm lengths, or playing styles. The shaft 2 and head 6 are detachably connected by threads, forming a segmented design. When a single component, either the shaft 2 or the head 6, is damaged, the entire racket does not need to be replaced; only the damaged segment needs to be replaced, significantly reducing resource waste and user expenses. At the same time, the segmented structure facilitates daily maintenance. The remaining parts can be easily removed by rotating the transmission component 9, avoiding secondary damage to the head 6 caused by forceful disassembly and reducing the difficulty of repair.

[0026] The original cylindrical mold for the handle 1 was changed to a grooved cylinder, with grooves cut on both sides, transforming the cylindrical mold into an irregularly shaped cylinder with two grooves. During the manufacturing of the handle 1, the grooves on both sides were first filled with unidirectional carbon fiber strips, and then the required carbon fiber cloth was wrapped around the outer wall. After baking and curing, the grooved mold was removed, resulting in a handle 1 with a round outer and inner diameter and two shafts. During assembly, the two shafts are placed on the left and right sides. This assembly results in a badminton racket with weaker vertical stiffness than horizontal stiffness. When hitting the shuttlecock, because the vertical stiffness is weaker than the horizontal stiffness, the racket vibrates vertically, while the horizontal swing is reduced. Due to the shafts on the left and right sides, the rebound speed is also increased.

[0027] The manufacturing method for this handle is the same as the old method, which does not increase material and labor costs, but only improves functionality, making it easily accepted by the public.

[0028] Please see Figure 3 The racket handle 2 has a second threaded rod 21 fixedly installed at one end. Two limiting blocks 22 are fixedly installed on the surface of the racket handle 2, and both limiting blocks 22 are slidably connected to the handle 1. The two limiting blocks 22 can limit the extension of the racket handle 2. The rotating seat 3 includes a threaded cylinder 31 and a rotating block 32 fixedly installed at one end of the threaded cylinder 31. The threaded cylinder 31 is threadedly connected to the second threaded rod 21, and the rotating block 32 is rotatably connected to the handle 1. The combination design of the threaded cylinder 31 and the rotating block 32 ensures the accuracy and stability of the length adjustment function, while taking into account the ease of operation, structural durability and maintenance economy. It is a highly efficient optimization of the length adjustment mechanism of the racket handle 2. Example 2

[0029] This embodiment aims to facilitate the solution to the problem of difficulty in removing parts after a breakage at the connection point. This embodiment is an improvement upon embodiment X. For details, please refer to [link / reference]. Figure 4-5 A round block 41 is fixedly installed at one end of the first threaded rod 4, and a positioning groove 42 is provided on one side of the round block 41. The positioning groove 42 and the elastic seat 8 can be used to limit the first threaded rod 4.

[0030] The connecting seat 7 includes a rotating column 71 and a first gear 72 fixed on the surface of the rotating column 71. Two rotating rings 73 are fixedly installed on the surface of the rotating column 71, and both rotating rings 73 are rotatably connected to the connecting cylinder 5. The first gear 72 can play a connecting role, while the two rotating rings 73 can stabilize the rotation of the rotating column 71.

[0031] The elastic seat 8 includes a slide rod 81 and two limiting strips 82 fixed to the surface of the slide rod 81. Both the slide rod 81 and the two limiting strips 82 are slidably connected to the rotating column 71. A circular plate 83 is fixedly installed at one end of the slide rod 81, and a spring 84 is fixedly installed on one side of the circular plate 83. One end of the spring 84 is fixedly connected to the rotating column 71. Two inserts 85 are fixedly installed at one end of the slide rod 81, and the inserts 85 are slidably connected to the positioning groove 42. When the first threaded rod 4 breaks and gets stuck in the connecting cylinder 5, the inserts 85 at the end of the slide rod 81 will be embedded into the positioning groove 42 of the first threaded rod 4 under the elastic force of the spring 84, forming a circumferential limit. This structure ensures that when the connecting seat 7 rotates, the elastic seat 8 can accurately transmit torque to the broken first threaded rod 4 through the engagement of the inserts 85 and the positioning groove 42, avoiding free rotation and ensuring that the first threaded rod 4 can rotate synchronously in the opposite direction with the rotating column 71, eventually unscrewing out of the connecting cylinder 5.

[0032] The transmission component 9 includes a frame plate 91 and a second gear 92 rotatably connected inside the frame plate 91. The frame plate 91 is connected through to one side of the connecting cylinder 5. The second gear 92 meshes with the first gear 72. By rotating the second gear 92, the first gear 72 can be driven to rotate, thereby driving the rotating column 71 to rotate.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A badminton racket shaft, comprising a handle (1), characterized in that: The handle (1) is slidably connected to the handle (2), and the handle (1) is rotatably connected to the rotating seat (3). The handle (2) is threadedly connected to the rotating seat (3). One end of the handle (2) is fixedly connected to the first threaded rod (4). The surface of the first threaded rod (4) is threadedly connected to the connecting cylinder (5). One end of the connecting cylinder (5) is fixedly installed with the head (6). The connecting cylinder (5) is rotatably connected to the connecting seat (7). The connecting cylinder (5) is slidably connected to the connecting seat (8). The elastic seat (8) is connected through to one end of the connecting seat (7). The elastic seat (8) is slidably connected to one end of the first threaded rod (4). A transmission component (9) is installed on one side of the connecting cylinder (5). The transmission component (9) is connected to the connecting seat (7) in a transmission manner.

2. The badminton racket shaft according to claim 1, characterized in that: The second threaded rod (21) is fixedly installed at one end of the racket handle (2), and two limiting blocks (22) are fixedly installed on the surface of the racket handle (2), and both limiting blocks (22) are slidably connected to the handle (1).

3. A badminton racket shaft according to claim 2, characterized in that: The rotating seat (3) includes a threaded cylinder (31) and a rotating block (32) fixedly installed at one end of the threaded cylinder (31). The threaded cylinder (31) is threadedly connected to the second threaded rod (21), and the rotating block (32) is rotatably connected to the handle (1).

4. The badminton racket shaft according to claim 1, characterized in that: A round block (41) is fixedly installed at one end of the first threaded rod (4), and a positioning groove (42) is provided on one side of the round block (41).

5. A badminton racket shaft according to claim 4, characterized in that: The connecting seat (7) includes a rotating column (71) and a first gear (72) fixed on the surface of the rotating column (71). Two rotating rings (73) are fixedly installed on the surface of the rotating column (71), and both rotating rings (73) are rotatably connected to the connecting cylinder (5).

6. A badminton racket shaft according to claim 5, characterized in that: The elastic seat (8) includes a slide rod (81) and two limiting strips (82) fixed on the surface of the slide rod (81). The slide rod (81) and the two limiting strips (82) are slidably connected to the rotating column (71). A circular plate (83) is fixedly installed at one end of the slide rod (81). A spring (84) is fixedly installed on one side of the circular plate (83). One end of the spring (84) is fixedly connected to the rotating column (71). Two inserts (85) are fixedly installed at one end of the slide rod (81). The inserts (85) are slidably connected to the positioning groove (42).

7. A badminton racket shaft according to claim 6, characterized in that: The transmission component (9) includes a frame plate (91) and a second gear (92) rotatably connected inside the frame plate (91). The frame plate (91) is connected through to one side of the connecting cylinder (5), and the second gear (92) meshes with the first gear (72).

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