Locking mechanism of clock spring
By designing a locking mechanism in the clock spring, the limiting block and transmission mechanism are used to prevent excessive contraction or expansion of the clock spring, the wear problem caused by the gathering of the line during the rotation of the clock spring is solved and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420047438.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-09
AI Technical Summary
If the clock spring turns too many times, the internal line body gathers and causes continuous tension to be pressed, which may cause wear or stretched ends, affecting subsequent use.
A locking mechanism for a clock spring is designed, including a housing, sleeve, cover plate, connecting wire belt, clock spring, slider, limit block and transmission mechanism, through limiting treatment when rotating counterclockwise and clockwise , prevent excessive contraction or expansion of the clockwork spring, and reduce damage to the connecting wire belt.
It effectively prevents excessive contraction or expansion of the clock spring, reduces damage to the connecting wire belt, and extends the service life of the clock spring.
Smart Images
Figure CN222146797U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clock springs, in particular to a locking mechanism of a clock spring. Background Art
[0002] The clock spring is used to connect the main airbag and the airbag wiring harness. Because the main airbag rotates with the steering wheel, there must be a margin in the connecting harness to ensure that the steering wheel can be turned to the extreme position to one side without being pulled apart. This is something that requires special attention during installation, and try to keep it in the middle position.
[0003] In the prior art, during the use of the clock spring, if the number of turns is too many, the internal wires will be gathered together and subjected to continuous tension and compression, which may cause wear or stretching, affecting the subsequent use of the clock spring. Utility Model Content
[0004] In view of the above problems existing in the existing clock spring, the present utility model is proposed.
[0005] Therefore, the purpose of the utility model is to provide a locking mechanism for a clock spring, which solves the problem that if the number of turns is too large, the internal wires will be gathered together and subjected to continuous tension and compression, which may cause wear or stretching, thus affecting the subsequent use of the clock spring.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A locking mechanism for a clock spring comprises a shell, wherein a sleeve is rotatably connected to the interior of the shell, a cover plate is provided on the top of the shell, a connecting column is fixedly connected to the interior of the cover plate, a connecting wire band is arranged around the interior of the shell, a spring spring is fixedly connected to the inner wall of the connecting wire band, a fixed rail is fixedly connected to the inner wall of the shell, a slider is slidably provided on the inner wall of the fixed rail, a connecting rod is fixedly connected to the top of the slider, a cavity is provided on the inner wall of the connecting rod, a limit block is slidably provided on the inner wall of the cavity, a plurality of limit holes are provided on the bottom of the spring, the limit block is arranged below the limit hole, a push rod is fixedly connected to the bottom of the limit block, the bottom end rod wall of the push rod extends to the interior of the slider, and a transmission mechanism is provided inside the slider.
[0008] Preferably, the transmission mechanism includes a compression spring, a slip ring, a pressure rod and a transmission rod, a groove is opened inside the sliding block, the compression spring is fixedly connected to the inner wall of the groove, the end of the compression spring is fixedly connected to the slip ring, the slip ring is slidably set on the inner wall of the groove, the pressure rod is fixedly connected to the inner wall of the slip ring and penetrates the compression spring, one end of the transmission rod is hinged on the rod wall of the pressure rod, and the other end of the transmission rod is hinged on the rod wall of the push rod.
[0009] Preferably, the end of the pressure rod extends to the outside of the slider and is fixedly connected to a protective pad.
[0010] Preferably, a guide block is fixedly connected to the side wall of the connecting rod, a guide slot is provided on the inner wall of the clockwork spring, and the guide block is slidably arranged on the inner wall of the guide slot.
[0011] Preferably, the inner wall of the clockwork spring is fixedly connected to a fixing box, the inner wall of the fixing box is provided with a groove, the inner wall of the groove is fixedly connected to a fixing rod, a clamping plate and a torsion spring are movably sleeved on the rod wall of the fixing rod, one end of the torsion spring is fixedly connected to the inner wall of the clamping plate, and the other end of the torsion spring is fixedly connected to the inner wall of the fixing box.
[0012] Preferably, the interior of the clamping plate is arranged as an arc surface, a plurality of clamping grooves are arranged around the wall of the sleeve, and the clamping plate is clamped on the inner wall of the clamping groove.
[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0014] 1. In the utility model, when the clockwork spring is rotated excessively counterclockwise, it will expand and tighten, so that the connecting rod and the slider move. After the slider is pressed against the inside of the fixed rail, the pad will push the pressure rod to move, compress the compression spring, move the slip ring, push the transmission rod to push the push rod to move, and extend the limit block to the inside of the limit groove. The clockwork spring can be limited to prevent it from excessive contraction and reduce damage to the connecting wire.
[0015] 2. In the utility model, when the clockwise rotation is excessive, the spring will shrink and tighten. The torsion spring can push the card to extend to the inside of the card slot, so that the card limits the spring to prevent it from excessive contraction and causing damage to the connecting line. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a sectional top view of the utility model;
[0019] Figure 3 For the utility model Figure 1 A magnified schematic diagram of part A;
[0020] Figure 4 For the utility model Figure 3 An enlarged schematic diagram of part B;
[0021] Figure 5 For the utility model Figure 2 Enlarged schematic diagram of part C of FIG.
[0022] Description of reference numerals:
[0023] 1. Shell; 2. Sleeve; 3. Cover plate; 4. Connecting column; 5. Connecting wire belt; 6. Spring; 7. Fixed rail; 8. Slider; 9. Connecting rod; 10. Compression spring; 11. Slip ring; 12. Pressure rod; 13. Pad; 14. Transmission rod; 15. Push rod; 16. Limit block; 17. Guide block; 18. Fixed box; 19. Fixed rod; 20. Card plate; 21. Torsion spring. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] The utility model embodiment discloses a locking mechanism of a clock spring.
[0026] The utility model provides Figure 1-5 The locking mechanism of a clock spring shown includes a shell 1, a sleeve 2 is rotatably connected to the inside of the shell 1, a cover plate 3 is provided on the top of the shell 1, a connecting column 4 is fixedly connected to the inside of the cover plate 3, a connecting wire band 5 is arranged around the inside of the shell 1, a spring spring 6 is fixedly connected to the inner wall of the connecting wire band 5, a fixed rail 7 is fixedly connected to the inner wall of the shell 1, a slider 8 is slidably provided on the inner wall of the fixed rail 7, a connecting rod 9 is fixedly connected to the top of the slider 8, a cavity is opened in the inner wall of the connecting rod 9, a limit block 16 is slidably provided on the inner wall of the cavity, a plurality of limit holes are opened at the bottom of the spring spring 6, the limit block 16 is arranged below the limit hole, a push rod 15 is fixedly connected to the bottom of the limit block 16, and the bottom end rod wall of the push rod 15 extends to the inside of the slider 8.
[0027] A transmission mechanism is provided inside the slider 8, and the transmission mechanism includes a compression spring 10, a slip ring 11, a pressure rod 12 and a transmission rod 14. A groove is provided inside the slider 8, and the compression spring 10 is fixedly connected to the inner wall of the groove. The end of the compression spring 10 is fixedly connected to the slip ring 11, and the slip ring 11 is slidably set on the inner wall of the groove. The pressure rod 12 is fixedly connected to the inner wall of the slip ring 11 and penetrates the compression spring 10. One end of the transmission rod 14 is hinged on the rod wall of the pressure rod 12, and the other end of the transmission rod 14 is hinged on the rod wall of the push rod 15. The end of the pressure rod 12 extends to the outside of the slider 8 and is fixedly connected to a protective pad 13. A guide block 17 is fixedly connected to the side wall of the connecting rod 9. A guide groove is provided on the inner wall of the clockwork spring 6, and the guide block 17 is slidably set on the inner wall of the guide groove.
[0028] When in use, the cover plate 3 and the connecting column 4 can be stably rotated inside the shell 1 through the sleeve 2, ensuring the stable movement of the connecting wire belt 5 and the spring spring 6. When rotating counterclockwise, if it rotates excessively, the spring spring 6 will expand and tighten outward, causing the connecting rod 9 and the slider 8 to move. After the slider 8 is pressed against the inside of the fixed rail 7, the pad 13 will push the pressure rod 12 to move, compressing the compression spring 10, moving the slip ring 11, pushing the transmission rod 14 to push the push rod 15 to move, and extending the limit block 16 to the inside of the limit groove. The spring spring 6 can be limited to prevent it from excessive contraction and reduce damage to the connecting wire belt 5.
[0029] In order to prevent the clockwise rotation from damaging the connecting wire 5, Figure 1-5 As shown, the inner wall of the clockwork spring 6 is fixedly connected with a fixing box 18, the inner wall of the fixing box 18 is provided with a groove, the inner wall of the groove is fixedly connected with a fixing rod 19, a clamping plate 20 and a torsion spring 21 are movably sleeved on the rod wall of the fixing rod 19, one end of the torsion spring 21 is fixedly connected to the inner wall of the clamping plate 20, and the other end of the torsion spring 21 is fixedly connected to the inner wall of the fixing box 18, the interior of the clamping plate 20 is set as an arc surface, a plurality of clamping grooves are arranged around the wall of the sleeve 2, and the clamping plate 20 is clamped on the inner wall of the clamping groove.
[0030] When rotating clockwise, the clockwork spring will shrink and tighten due to excessive rotation. The torsion spring 21 can push the card plate 20 to extend into the inside of the card slot, so that the card plate 20 can limit the clockwork spring 6 to prevent it from over-contracting and causing damage to the connecting wire 5.
[0031] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A locking mechanism for a clock spring, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to a sleeve (2). A cover plate (3) is provided above the housing (1). A connecting column (4) is fixedly connected to the cover plate (3). A connecting wire band (5) is arranged around the housing (1). A spring spring (6) is fixedly connected to the inner wall of the connecting wire band (5). A fixed rail (7) is fixedly connected to the inner wall of the housing (1). A slider (8) is slidably provided on the inner wall of the fixed rail (7). A connecting rod (9) is fixedly connected to the top of the slider (8). A cavity is provided on the inner wall of the connecting rod (9). A limit block (16) is slidably provided on the inner wall of the cavity. A plurality of limit holes are provided at the bottom of the spring spring (6). The limit block (16) is arranged below the limit holes. A push rod (15) is fixedly connected to the bottom of the limit block (16). The bottom end rod wall of the push rod (15) extends to the inside of the slider (8). A transmission mechanism is provided inside the slider (8).
2. The locking mechanism of the clock spring according to claim 1, characterized in that: The transmission mechanism comprises a compression spring (10), a slip ring (11), a pressure rod (12) and a transmission rod (14); a groove is provided inside the slider (8); the compression spring (10) is fixedly connected to the inner wall of the groove; the end of the compression spring (10) is fixedly connected to the slip ring (11); the slip ring (11) is slidably arranged on the inner wall of the groove; the pressure rod (12) is fixedly connected to the inner wall of the slip ring (11) and penetrates the compression spring (10); one end of the transmission rod (14) is hingedly arranged on the rod wall of the pressure rod (12); and the other end of the transmission rod (14) is hingedly arranged on the rod wall of the push rod (15).
3. The locking mechanism of the clock spring according to claim 2, characterized in that: The end of the pressure rod (12) extends to the outside of the slider (8) and is fixedly connected to a protective pad (13).
4. The locking mechanism of the clock spring according to claim 1, characterized in that: A guide block (17) is fixedly connected to the side wall of the connecting rod (9), a guide slot is provided on the inner wall of the spring spring (6), and the guide block (17) is slidably arranged on the inner wall of the guide slot.
5. The locking mechanism of the clock spring according to claim 1, characterized in that: The inner wall of the clockwork spring (6) is fixedly connected to a fixing box (18), the inner wall of the fixing box (18) is provided with a groove, the inner wall of the groove is fixedly connected to a fixing rod (19), a clamping plate (20) and a torsion spring (21) are movably sleeved on the rod wall of the fixing rod (19), one end of the torsion spring (21) is fixedly connected to the inner wall of the clamping plate (20), and the other end of the torsion spring (21) is fixedly connected to the inner wall of the fixing box (18).
6. The locking mechanism of the clock spring according to claim 5, characterized in that: The interior of the clamping plate (20) is arranged as an arc surface, a plurality of clamping grooves are arranged around the wall of the sleeve (2), and the clamping plate (20) is clamped on the inner wall of the clamping groove.