Anti-loose handle

Abstract

A kind of anti-loose handle, handle seat is set connector away from the side of handle body, connector is set shaft hole on, the anti-loose device is set in the shaft hole, anti-loose device includes the anti-loose groove set in the inner wall of shaft hole, the anti-loose part of protruding setting on the outer wall of shaft hole and the pre-pressing piece set on the anti-loose part, transmission shaft is also set in handle seat, pre-pressing piece is locked against transmission shaft and connector and is locked against transmission shaft inserted into shaft hole.The design is locked against transmission shaft by the unique anti-loose device design, effectively solves the problem caused by the relative looseness of transmission shaft and handle in the rotating process of traditional handle.The pre-pressing piece in anti-loose device, by its U-shaped structure and elastic pre-tightening force, can closely adhere to the anti-loose part when transmission shaft is inserted into shaft hole, form stable connection, avoid the shaking and looseness of transmission shaft.Handle body is set in handle cavity and the elastic device protruding on the cavity wall, also effectively limit transmission shaft.

Description

Technical Field

[0001] This utility model relates to the field of handles, specifically to an anti-loosening handle. Background Technology

[0002] Handles, as indispensable components in everyday items such as doors, windows, and furniture, primarily function to facilitate opening, closing, and locking operations. However, in the assembly process of traditional handles, only one end of the handle is fixed, while the other end of the drive shaft extends into the other handle without additional securing. Furthermore, there is a gap between the shaft and the handle. Therefore, when the handle rotates, the drive shaft and handle tend to become relatively loose. This looseness not only results in an unsmooth operating feel, affecting the user experience, but also, over long-term use, can lead to accelerated wear and tear on both the handle and the drive shaft due to frequent collisions and friction, thus shortening the handle's lifespan. In addition, due to design flaws in the internal structure, traditional handles often generate noise during locking and opening, which also negatively impacts the user experience. Summary of the Invention

[0003] In view of this, the present invention provides a handle that prevents loosening.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An anti-loosening handle includes a handle body and a handle seat. A connecting member is provided on the side of the handle seat away from the handle body. One end of the handle body passes through the handle seat and connects with the connecting member. A shaft hole is also provided on the connecting member. An anti-loosening device is provided in the shaft hole. The anti-loosening device includes an anti-loosening groove provided on the inner side wall of the shaft hole, an anti-loosening part protruding on the outer side wall of the shaft hole, and a pre-pressing member provided on the anti-loosening part. A drive shaft is also provided inside the handle. The pre-pressing member is pressed against the drive shaft and the connecting member to lock the drive shaft extending into the shaft hole to prevent loosening.

[0005] Preferably, the pre-compression member is arranged in a U-shape on the anti-loosening part. The pre-compression member includes connecting parts at both ends and fastening parts connecting the connecting parts at both ends. The connecting parts are connected to the anti-loosening part, and the fastening parts are arranged in the shaft hole. When the drive shaft extends into the shaft hole, the fastening parts are pressed tightly against the inner wall of the anti-loosening groove.

[0006] Preferably, the anti-loosening part has a trapezoidal cross-section, one side of the anti-loosening part is connected to the anti-loosening groove, and when the drive shaft extends into the shaft hole, it drives the fastening part to be pressed into the anti-loosening groove.

[0007] Preferably, the pre-compression member has an elastic preload, which deforms when the drive shaft is compressed and transmits elastic force in the direction of the drive shaft.

[0008] Preferably, the handle body also has a handle cavity, one end of the drive shaft extends into the handle cavity and connects with the handle, and an elastic device is provided on the inner wall of the handle cavity to limit the extension of the drive shaft.

[0009] Preferably, the elastic device includes a connecting spring and a limiting block, one end of the connecting spring is connected to the limiting block, and the other end is connected to the inner wall of the handle cavity, and the limiting block limits the extension of the drive shaft.

[0010] Preferably, a connecting groove is formed on the inner wall of the handle cavity corresponding to the position of the connecting spring, one end of the connecting spring is connected to the bottom wall of the connecting groove, the drive shaft presses the limiting block and the connecting spring to move toward the connecting groove, and the connecting spring and the limiting block transmit a fastening force to the drive shaft.

[0011] Preferably, the limiting block has a guide slope on the side near the handle seat.

[0012] Preferably, the limiting block has a limiting part, and a limiting groove is formed in the inner wall of the connecting groove, and the limiting part extends into the limiting groove to limit the movement of the limiting block.

[0013] The beneficial effects of this utility model are as follows: This design, through its unique anti-loosening device, effectively solves the problem caused by the relative loosening of the drive shaft and the handle during the rotation of traditional handles. The pre-compression component in the anti-loosening device, through its U-shaped structure and elastic pre-tightening force, can tightly fit the anti-loosening part when the drive shaft extends into the shaft hole, forming a stable connection and preventing the drive shaft from shaking or loosening. Simultaneously, the anti-loosening part has a trapezoidal cross-section with an anti-loosening groove between it and the shaft hole, allowing the drive shaft to drive the fastening part to press firmly into the anti-loosening groove when it extends, further enhancing the anti-loosening effect. Furthermore, the handle cavity within the handle body and the protruding elastic device on the inner wall of the cavity also effectively limit the drive shaft. Through the cooperation of the connecting spring and the limiting block, a fastening force is transmitted to the drive shaft, ensuring the stability and reliability of the handle during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a structural schematic diagram of the present invention from another angle; Appendix Figure 3 For the appendix Figure 2 Sectional view at point AA; Appendix Figure 4 This is a schematic diagram of the connecting parts and pre-compression parts in this utility model; Appendix Figure 5 This is a schematic diagram of the connecting component in this utility model; Appendix Figure 6 This is a schematic diagram of the pre-compression component in this utility model; Appendix Figure 7 For the appendix Figure 3 Enlarged view of point A in the middle.

[0016] Figure label: 1. Handle body; 2. Handle seat; 3. Connector; 4. Shaft hole; 5. Anti-loosening device; 6. Anti-loosening part; 7. Pre-compression part; 8. Connecting part; 9. Fastening part; 10. Anti-loosening groove; 11. Handle cavity; 12. Elastic device; 13. Connecting spring; 14. Limiting block; 15. Connecting groove; 16. Guide slope; 17. Limiting part; 18. Limiting groove. Detailed Implementation

[0017] 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.

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] This utility model provides the following technical solution: As attached Figure 1-7 As shown, this utility model discloses an anti-loosening handle. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] This utility model provides the following technical solution: As attached Figure 1-7As shown, this utility model discloses an anti-loosening handle, including a handle body 1 and a handle seat 2. A connecting member 3 is provided on the side of the handle seat 2 away from the handle body 1. One end of the handle body 1 passes through the handle seat 2 and connects with the connecting member 3. A shaft hole 4 is formed on the connecting member 3. An anti-loosening device 5 is provided in the shaft hole 4. The anti-loosening device 5 includes an anti-loosening groove 10 formed on the inner side wall of the shaft hole, an anti-loosening part 6 protruding on the outer side wall of the shaft hole 4, and a pre-pressing member 7 provided on the anti-loosening part 6. A drive shaft is also provided in the handle seat 2. The pre-pressing member 7 is pressed against the drive shaft and the connecting member 3 to lock the drive shaft extending into the shaft hole 4 to prevent loosening. In this embodiment, the function of the anti-loosening device 5 is to prevent the drive shaft from loosening due to vibration or external force during use, ensuring a stable connection between the handle and the connecting member 3. By using the pre-pressing member 7 provided on the anti-loosening part 6, when the drive shaft extends into the shaft hole 4, the pre-pressing member 7 applies a certain locking force to the drive shaft, thereby effectively preventing the drive shaft from moving relative to the handle, improving the structural stability and reliability of the entire anti-loosening handle. Simultaneously, the design of the pre-pressing member 7 also ensures that the drive shaft will not make abnormal noises due to gaps or looseness between it and the handle, guaranteeing quietness during use. In this embodiment, the connecting member 3 is also provided with a connecting hole, through which the handle body 1 connects to the connecting member 3. In this embodiment, the anti-loosening part 6 protrudes from both sides of the connecting member 3, near and away from the handle body 1. This design allows for a more secure connection between the pre-pressing member 7 and the anti-loosening part. Meanwhile, the anti-loosening groove 10 communicates with the shaft hole 4. A portion of the pre-pressing member 7 is respectively disposed within the anti-loosening groove 10 and the shaft hole 4, and another portion is disposed on the anti-loosening part 6 (drive shaft not shown in the diagram). Furthermore, the pre-compression member 7 is U-shaped and disposed on the anti-loosening part 6. The pre-compression member 7 includes connecting parts 8 at both ends and fastening parts 9 connecting the connecting parts 8 at both ends. The connecting parts 8 are connected to the anti-loosening part 6, and the fastening parts 9 are disposed in the shaft hole 4. When the drive shaft extends into the shaft hole 4, the fastening parts 9 are pressed tightly against the inner wall of the anti-loosening groove 10. In this embodiment, the function of the pre-compression member 7 is that when the drive shaft extends into the shaft hole 4, the U-shaped pre-compression member 7 directly contacts the drive shaft through its fastening parts 9 and generates compression. The reliable connection between the connecting parts 8 and the anti-loosening part 6 ensures that the pre-compression member 7 will not shift or fall off during operation, further improving the durability of the anti-loosening device 5. Through this structure, the pre-compression member 7 not only achieves the initial positioning of the drive shaft, but also provides a stable support foundation for subsequent elastic locking.

[0022] Furthermore, the anti-loosening part 6 has a trapezoidal cross-section, and one side of the anti-loosening part 6 is connected to the anti-loosening groove 10. When the drive shaft extends into the shaft hole 4, it drives the fastening part 9 to be pressed into the anti-loosening groove 10. In this embodiment, the function of the anti-loosening part 6 is to provide effective space for the clamping of the drive shaft through its trapezoidal cross-section structure and the gap 10 between it and the shaft hole 4. When the drive shaft extends into the shaft hole 4, it drives the fastening part 9 of the pre-pressing member 7 to be pressed into this gap 10. This design not only enhances the anti-loosening effect, but also allows the drive shaft to disperse and offset part of the external force when subjected to external force through the tight fit between the fastening part 9 and the anti-loosening part 6, thereby further improving the stability and durability of the anti-loosening handle. Meanwhile, the trapezoidal anti-loosening part 6 enhances the stability of the connection with the pre-tightening part and increases the contact area with the fastening part 9, making the locking force more uniform and reliable. In this embodiment, the anti-loosening part 6 is connected to the anti-loosening groove 10, so that the pre-pressing part 7 can be smoothly installed in the shaft hole 4 and the anti-loosening groove 10.

[0023] Furthermore, the preload member 7 possesses an elastic preload force, deforming while transmitting an elastic force in the direction of the drive shaft during compression. In this embodiment, the elastic preload force characteristic of the preload member 7 is one of the key factors in its effective anti-loosening mechanism. When the drive shaft is pressed into the shaft hole 4, the preload member 7 deforms. This deformation is not a simple plastic deformation but rather exhibits an elastic recovery tendency. During the deformation process, the preload member 7 transmits a continuous elastic force in the direction of the drive shaft, ensuring that the drive shaft remains locked at all times. Even under external vibration or impact, the drive shaft is unlikely to experience relative displacement because the elastic force of the preload member 7 holds it within the shaft hole 4, thereby maintaining a stable connection between the handle and the connecting member 3.

[0024] Furthermore, a handle cavity 11 is provided within the handle body 1. One end of the drive shaft extends into the handle cavity 11 and connects with the handle. An elastic device 12 protrudes from the inner wall of the handle cavity 11, and the elastic device 12 limits the extension of the drive shaft. In this embodiment, the function of the elastic device 12 is to further limit and fix the portion of the drive shaft extending into the handle cavity 11, preventing unnecessary shaking or displacement within the handle cavity 11. This design not only enhances the connection stability between the drive shaft and the handle body 1, but also improves the reliability and durability of the entire anti-loosening handle during use. The elastic device 12, through its own elastic properties, can provide a certain amount of buffering and rebound force when the drive shaft is subjected to external force, thereby maintaining the stable position of the drive shaft.

[0025] Furthermore, the elastic device 12 includes a connecting spring 13 and a limiting block 14. One end of the connecting spring 13 is connected to the limiting block 14, and the other end is in contact with the inner wall of the handle cavity 11. The limiting block 14 limits the insertion of the drive shaft. In this embodiment, the connecting spring 13 and the limiting block 14 work together to achieve precise limiting of the drive shaft. As an elastic element, the connecting spring 13 provides stable elastic support for the limiting block 14, ensuring that the limiting block 14 can quickly and accurately position the drive shaft when it extends into the handle cavity 11 and limit the drive shaft through its elastic force. The limiting block 14 directly contacts the drive shaft, physically limiting the drive shaft through its contact surface to prevent displacement within the handle cavity 11. This design effectively improves the stability and reliability of the anti-loosening handle during use. Meanwhile, the combination of connecting spring 13 and limiting block 14 also has a certain buffering effect, which can absorb some of the vibration and impact force generated by the drive shaft during use, and further protect the anti-loosening handle from damage.

[0026] Furthermore, a connecting groove 15 is formed on the inner wall of the handle cavity 11 corresponding to the position of the connecting spring 13. One end of the connecting spring 13 is connected to the bottom wall of the connecting groove 15. The drive shaft presses against the limiting block 14 and the connecting spring 13, moving towards the connecting groove 15. The connecting spring 13 and the limiting block 14 transmit a fastening force to the drive shaft. In this embodiment, the connecting groove 15 provides a stable installation position for the connecting spring 13, ensuring that the connecting spring 13 will not shift or fall off during operation. When the drive shaft extends into the handle cavity 11 and presses against the limiting block 14, the connecting spring 13 is compressed, generating a reverse elastic force. This elastic force is transmitted to the drive shaft through the limiting block 14, forming a fastening force, further enhancing the connection stability between the drive shaft and the handle. At the same time, the design of the connecting groove 15 also makes the structure of the entire elastic device 12 more compact, improving space utilization. In addition, the depth and width of the connecting groove 15 can be adjusted according to actual needs to adapt to different specifications and models of drive shafts, improving the versatility and adaptability of the anti-loosening handle. In this embodiment, the elastic device 12 and the anti-loosening device 5 cooperate to double limit and fix the drive shaft that extends into the handle, so as to achieve the effect of the drive shaft being stably set in the handle.

[0027] Furthermore, a guide ramp 16 is provided on the side of the limiting block 14 near the handle seat 2. In this embodiment, the guide ramp 16 provides a smooth guide for the drive shaft as it extends into the handle cavity 11. When the drive shaft contacts the guide ramp 16 of the limiting block 14, due to the inclination angle of the ramp, the drive shaft will gradually press against the limiting block 14 along the ramp direction, instead of directly colliding with the vertical surface of the limiting block 14. This design not only reduces the impact force between the drive shaft and the limiting block 14, reducing noise and wear caused by collision, but also allows the drive shaft to be positioned more accurately within the handle cavity 11. At the same time, the presence of the guide ramp 16 also improves the convenience and efficiency of the anti-loosening handle during assembly, because the operator does not need to precisely align the drive shaft and the limiting block 14; they only need to roughly align the drive shaft with the entrance of the handle cavity 11, and the assembly can be completed by the guidance of the guide ramp 16.

[0028] Furthermore, the limiting block 14 has a limiting part 17, and a limiting groove 18 is formed in the inner wall of the connecting groove 15. The limiting part 17 extends into the limiting groove 18 to limit the movement of the limiting block 14. In this embodiment, the function of the limiting part 17 is to precisely control the movement range of the limiting block 14 by cooperating with the limiting groove 18, preventing excessive displacement or detachment during operation. This design not only enhances the stability of the limiting block 14 but also ensures that its limiting effect on the drive shaft remains consistent. When the drive shaft extends into the handle cavity and presses against the limiting block, the movement of the limiting part 17 within the limiting groove 14 is strictly limited, and it can only be fine-tuned within a preset range, thereby ensuring the accuracy and reliability of the entire elastic device 12.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking handle, comprising a handle body and a handle seat, wherein a connecting member is disposed on the side of the handle seat away from the handle body, and one end of the handle body passes through the handle seat and connects to the connecting member, characterized in that: The connector has a shaft hole, and an anti-loosening device is provided in the shaft hole. The anti-loosening device includes an anti-loosening groove on the inner side wall of the shaft hole, an anti-loosening part protruding on the outer side wall of the shaft hole, and a pre-pressing part provided on the anti-loosening part. The handle seat is also provided with a drive shaft. The pre-pressing part is close to the drive shaft and the connector to lock the drive shaft that extends into the shaft hole to prevent loosening.

2. The anti-loosening handle according to claim 1, characterized in that: The pre-compression component is U-shaped and is installed on the anti-loosening part. The pre-compression component includes connecting parts at both ends and fastening parts connecting the connecting parts at both ends. The connecting parts are connected to the anti-loosening part, and the fastening parts are installed in the shaft hole. When the drive shaft extends into the shaft hole, the fastening parts are pressed tightly against the inner wall of the anti-loosening groove.

3. The anti-loosening handle according to claim 2, characterized in that: The anti-loosening part has a trapezoidal cross-section, and one side of the anti-loosening part is connected to the anti-loosening groove. When the drive shaft extends into the shaft hole, it drives the fastening part to be pressed into the anti-loosening groove.

4. The anti-loosening handle according to claim 2, characterized in that: The pre-compression component has an elastic pre-tightening force, which deforms when the drive shaft is pressed and transmits elastic force in the direction of the drive shaft.

5. The anti-loosening handle according to claim 1, characterized in that: The handle body also has a handle cavity, one end of the drive shaft extends into the handle cavity and connects with the handle, and an elastic device is provided on the inner wall of the handle cavity to limit the extension of the drive shaft.

6. The anti-loosening handle according to claim 5, characterized in that: The elastic device includes a connecting spring and a limiting block. One end of the connecting spring is connected to the limiting block, and the other end is connected to the inner wall of the handle cavity. The limiting block limits the insertion of the drive shaft.

7. The anti-loosening handle according to claim 6, characterized in that: A connecting groove is formed on the inner wall of the handle cavity corresponding to the position of the connecting spring. One end of the connecting spring is connected to the bottom wall of the connecting groove. The drive shaft presses against the limiting block and the connecting spring, which move toward the connecting groove. The connecting spring and the limiting block transmit a fastening force to the drive shaft.

8. The anti-loosening handle according to claim 7, characterized in that: The limiting block has a guide slope on the side near the handle seat.

9. A locking handle according to claim 8, characterized in that: The limiting block has a limiting part, and a limiting groove is opened in the inner wall of the connecting groove. The limiting part extends into the limiting groove to limit the movement of the limiting block.

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