Novel combined clock spring

Abstract

The utility model discloses a novel combined clock spring, which relates to the technical field of clock springs and comprises a shell, a connector is arranged on the inner wall of the shell, a sleeve is rotatably connected to the inner wall of the bottom end of the shell, a signal transmission line is electrically connected to the inner wall, located on the connector, of the shell, and a clockwork spring is fixedly adhered to the inner wall of the signal transmission line. The signal transmission line and the clockwork spring are arranged on the outer side of the sleeve in a surrounding mode, the sleeve wall of the sleeve is sleeved with a cover plate, and the inner wall of the cover plate is in threaded connection with a binding post. When the steering wheel rotates, the cover plate and the sleeve can be driven to rotate, so that the signal transmission line and the clockwork spring are tightened or diffused, the signal connection effect of the signal transmission line is ensured, and the signal transmission line cannot be influenced by rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of clock springs, in particular to a novel combined 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, the internal structural parts will wear out after long-term use and need to be disassembled and replaced. However, the clock spring is tightly connected and is not convenient for disassembly and maintenance. It is easy to be damaged during disassembly, which increases the cost of disassembly and maintenance. 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 new type of combined clock spring, which solves the problem that the clock spring is tightly connected, is not convenient for disassembly and maintenance, is easily damaged during disassembly, and increases the cost of disassembly and maintenance.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel combined clock spring comprises a shell, the inner wall of the shell is provided with a joint, the inner wall of the bottom end of the shell is rotatably connected to a sleeve, the inner wall of the shell located at the joint is electrically connected to a signal transmission line, the inner wall of the signal transmission line is fixedly attached with a clockwork spring, the signal transmission line and the clockwork spring are arranged around the outside of the sleeve, a cover plate is sleeved on the barrel wall of the sleeve, the inner wall of the cover plate is threadedly connected to a terminal, the top of the terminal is electrically connected to a connecting line, and the end of the signal transmission line away from the joint is electrically connected to the terminal.

[0008] Preferably, spherical grooves are respectively formed on the inner walls on both sides of the cover plate, and balls are rollingly arranged on the inner walls of the spherical grooves of the cover plate, and the balls are rollingly arranged on the inner wall of the shell.

[0009] Preferably, a groove is provided on the inner wall of the cover plate, a rotating rod is rotatably connected inside the groove, a clamping plate and a torsion spring are fixedly sleeved on the rod wall of the rotating 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 cover plate, a fan-shaped groove is provided on the inner wall of the sleeve, and the clamping plate is pressed against the inner wall of the fan-shaped groove.

[0010] Preferably, a draw rope is fixedly connected to the side wall of the card plate, an end of the draw rope facing away from the card plate is fixedly connected to a connecting block, and a pull ring is fixedly connected to the top of the connecting block.

[0011] Preferably, a fixing ring is provided on the inner wall of the bottom end of the shell, a guide groove is provided on the inner wall of the top end of the fixing ring, a plurality of guide blocks are slidably provided on the inner wall of the guide groove, and the top ends of the plurality of guide blocks are respectively fixedly connected with levers, and the levers extend to the gap between the signal transmission line and the clockwork spring.

[0012] Preferably, a plurality of anti-slip pads are fixedly connected around the inner wall of the sleeve.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. The utility model can drive the cover plate and the sleeve to rotate when the steering wheel rotates, so that the signal transmission line and the spring spring are tightened or expanded, thereby ensuring the signal connection effect of the signal transmission line will not be affected by the rotation.

[0015] 2. In the utility model, the cover plate is placed above the sleeve, and the torsion spring can push the clamping plate to be tightly arranged inside the fan-shaped groove, so that the cover plate can be installed and handled in a portable manner. When disassembling later, it is only necessary to pull the pull ring to drive the pull block and the pull rope to move, so that the clamping plate can be retracted to the inside of the groove, and the cover plate can be removed.

[0016] 3. According to the utility model, during subsequent disassembly, it is only necessary to pull the pull ring to drive the pull block and the pull rope to move, so that the clamping plate can be retracted into the inside of the groove, and the cover plate can be removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0020] Figure 3 For the utility model Figure 1 A top view of the structure of the middle box.

[0021] Description of reference numerals:

[0022] 1. Shell; 2. Connector; 3. Sleeve; 4. Signal transmission line; 5. Spring; 6. Cover; 7. Ball; 8. Terminal; 9. Connecting line; 10. Rotating rod; 11. Card; 12. Torsion spring; 13. Pull rope; 14. Connecting block; 15. Pull ring; 16. Fixing ring; 17. Guide block; 18. Lever; 19. Anti-slip pad. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model embodiment discloses a novel combined clock spring.

[0025] The utility model provides Figure 1-3 A new type of combined clock spring shown includes a shell 1, an inner wall of the shell 1 is provided with a joint 2, the inner wall of the bottom end of the shell 1 is rotatably connected to a sleeve 3, the inner wall of the shell 1 located at the joint 2 is electrically connected to a signal transmission line 4, the inner wall of the signal transmission line 4 is fixedly attached with a spring spring 5, the signal transmission line 4 and the spring spring 5 are surrounded and arranged on the outside of the sleeve 3, a cover plate 6 is sleeved on the wall of the sleeve 3, the inner wall of the cover plate 6 is threadedly connected to a terminal 8, the top of the terminal 8 is electrically connected to a connecting line 9, the end of the signal transmission line 4 facing away from the joint 2 is electrically connected to the terminal 8, spherical grooves are respectively opened on the inner walls of the cover plate 6 on both sides, and balls 7 are rollingly arranged on the inner wall of the cover plate 6 located in the spherical groove, and the balls 7 are rollingly arranged on the inner wall of the shell 1.

[0026] A groove is provided on the inner wall of the cover plate 6, and a rotating rod 10 is rotatably connected inside the groove. A clamping plate 11 and a torsion spring 12 are fixedly sleeved on the rod wall of the rotating rod 10. One end of the torsion spring 12 is fixedly connected to the inner wall of the clamping plate 11, and the other end of the torsion spring 12 is fixedly connected to the inner wall of the cover plate 6. A fan-shaped groove is provided on the inner wall of the sleeve 3, and the clamping plate 11 is pressed against the inner wall of the fan-shaped groove. A pull rope 13 is fixedly connected to the side wall of the clamping plate 11, and the end of the pull rope 13 facing away from the clamping plate 11 is fixedly connected to a connecting block 14, and a pull ring 15 is fixedly connected to the top of the connecting block 14.

[0027] When in use, by placing the cover plate 6 above the sleeve 3, the torsion spring 12 can push the card plate 11 to be clamped inside the fan-shaped groove, and the cover plate 6 can be installed in a portable manner. When in use, the shell 1 and the connector 2 are connected to the fixed end, and the cover plate 6 and the connecting line 9 are connected to the steering wheel. When the steering wheel rotates, the cover plate 6 and the sleeve 3 can be driven to rotate, so that the signal transmission line 4 and the clockwork spring 5 are tightened or diffused, ensuring that the signal connection effect of the signal transmission line 4 will not be affected by the rotation. During subsequent disassembly, it is only necessary to pull the pull ring 15 to drive the pull block 14 and the pull rope 13 to move, so that the card plate 11 can be retracted to the inside of the groove, and the cover plate 6 can be removed. The ball 7 can reduce the friction between the cover plate 6 and the shell 1, and the terminal 8 is threadedly connected to the inside of the cover plate 6 for easy disassembly.

[0028] In order to ensure the stability of the gap between the signal transmission line 4 and the spring 5, as Figure 1-3 As shown, a fixing ring 16 is provided on the inner wall of the bottom end of the shell 1, a guide groove is provided on the inner wall of the top end of the fixing ring 16, a plurality of guide blocks 17 are slidably provided on the inner wall of the guide groove, top ends of the plurality of guide blocks 17 are respectively fixedly connected with levers 18, the levers 18 extend to the gap between the signal transmission line 4 and the clockwork spring 5, and a plurality of anti-slip pads 19 are fixedly connected around the inner wall of the sleeve 3.

[0029] The guide block 17 slides along the inner wall of the guide groove to move the lever 18, which can ensure the stability of the gap between the signal transmission line 4 and the clockwork spring 5 when the signal transmission line 4 and the clockwork spring 5 contract or expand, and prevent the gap between the signal transmission line 4 and the clockwork spring 5 from being too tight or too loose, causing wear and affecting subsequent use. The anti-slip pad 19 can ensure the stability of the connection of the sleeve 3 and prevent slipping.

[0030] 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 novel combined clock spring, comprising a housing (1), characterized in that: The inner wall of the shell (1) is provided with a joint (2), the inner wall of the bottom end of the shell (1) is rotatably connected to a sleeve (3), the inner wall of the shell (1) located at the joint (2) is electrically connected to a signal transmission line (4), the inner wall of the signal transmission line (4) is fixedly attached with a spring (5), the signal transmission line (4) and the spring (5) are arranged around the outer side of the sleeve (3), a cover plate (6) is sleeved on the wall of the sleeve (3), the inner wall of the cover plate (6) is threadedly connected to a terminal (8), the top of the terminal (8) is electrically connected to a connecting line (9), and the end of the signal transmission line (4) away from the joint (2) is electrically connected to the terminal (8).

2. The novel combined clock spring according to claim 1 is characterized in that: The inner walls on both sides of the cover plate (6) are respectively provided with spherical grooves, and the inner walls of the cover plate (6) are provided with balls (7) for rolling, and the balls (7) are provided for rolling on the inner wall of the housing (1).

3. The novel combined clock spring according to claim 1 is characterized in that: The inner wall of the cover plate (6) is provided with a groove, the interior of the groove is rotatably connected with a rotating rod (10), a clamping plate (11) and a torsion spring (12) are fixedly sleeved on the rod wall of the rotating rod (10), one end of the torsion spring (12) is fixedly connected to the inner wall of the clamping plate (11), and the other end of the torsion spring (12) is fixedly connected to the inner wall of the cover plate (6), the inner wall of the sleeve (3) is provided with a fan-shaped groove, and the clamping plate (11) is pressed against the inner wall of the fan-shaped groove.

4. The novel combined clock spring according to claim 3 is characterized in that: A drawstring (13) is fixedly connected to the side wall of the card plate (11), one end of the drawstring (13) away from the card plate (11) is fixedly connected to a connecting block (14), and a pull ring (15) is fixedly connected to the top of the connecting block (14).

5. The novel combined clock spring according to claim 1 is characterized in that: A fixing ring (16) is provided on the inner wall of the bottom end of the housing (1), a guide groove is provided on the inner wall of the top end of the fixing ring (16), a plurality of guide blocks (17) are slidably provided on the inner wall of the guide groove, and the top ends of the plurality of guide blocks (17) are respectively fixedly connected with a lever (18), and the lever (18) extends to the gap between the signal transmission line (4) and the spring spring (5).

6. The novel combined clock spring according to claim 1 is characterized in that: A plurality of anti-slip pads (19) are fixedly connected around the inner wall of the sleeve (3).

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