A scroll spring

Abstract

The utility model relates to a kind of volute springs, it includes spring body, and the both ends of spring body are respectively bent with inner connecting plate and outer connecting plate, and mounting hole is opened on inner connecting plate, and connecting hole is opened on outer connecting plate, and there is storage rope in connecting hole, storage rope is sleeved on the circumferential wall of the outermost side of spring body, and the both ends of storage rope are fixed respectively by first fixed component and second fixed component with outer connecting plate.The application technical scheme is bound hoop storage by storage rope to spring body, limit spring body to open and increase packing space, save the packaging, transportation cost of volute spring, and it is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of spiral springs, and in particular to a spiral spring. Background Technology

[0002] A planar spiral spring, commonly known as a clockwork spring, is made of steel strip wound around a base. During use, one end is fixed, and when torque is applied to the other end, the material undergoes bending elastic deformation.

[0003] Because spiral springs have a flexible deformation space, they have a large pitch when in the initial state due to relaxation. The presence of this pitch increases the volume of the spiral spring, resulting in higher packaging and transportation costs. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a spiral spring.

[0005] The spiral spring provided in this application adopts the following technical solution:

[0006] A spiral spring includes a spring body, with an inner connecting plate and an outer connecting plate bent at both ends of the spring body. A connecting hole is provided on the outer connecting plate, and a storage rope passes through the connecting hole. The storage rope is sleeved on the outermost peripheral wall of the spring body, and both ends of the storage rope are fixed to the outer connecting plate by a first fixing component and a second fixing component, respectively.

[0007] Preferably, the first fixing component includes a first fixing plate, a first rotating shaft, and a first torsion spring. The outer connecting plate has a first fixing groove on one side along its thickness direction for the first fixing plate to be accommodated and rotated. The thickness of the first fixing plate is less than the depth of the first fixing groove. The first fixing plate is rotatably connected to the inner wall of the first fixing groove via the first rotating shaft. Both ends of the first rotating shaft are fixed to the inner wall of the first fixing groove. The first rotating shaft passes through the first fixing plate and is rotatably connected to it. The first torsion spring is sleeved on the first rotating shaft. One end of the first torsion spring is fixed to the inner wall of the first fixing groove, and the other end is fixed to the side wall of the first fixing plate. The first torsion spring applies a force to the first fixing plate, causing the end of the first fixing plate away from the first rotating shaft to rotate towards the first fixing groove. One end of the storage rope is provided with a first loop, which is sleeved on the first fixing plate.

[0008] Preferably, the width of the first fixing plate is smaller than the width of the first fixing groove, and the first torsion spring is located on both sides of the width direction of the first fixing plate.

[0009] Preferably, the length of the first fixing plate is less than the length of the first fixing groove, and the end of the first fixing plate away from the first rotating shaft is arc-shaped.

[0010] Preferably, the second fixing component includes a second fixing plate, a second rotating shaft, and a second torsion spring. The second fixing plate and the first fixing plate are located on opposite sides of the outer connecting plate in the thickness direction. The other side of the outer connecting plate in the thickness direction has a second fixing groove for the second fixing plate to be accommodated and rotated. The thickness of the second fixing plate is less than the depth of the second fixing groove. The second fixing plate is rotatably connected to the inner wall of the second fixing groove via the second rotating shaft. Both ends of the second rotating shaft are fixed to the inner wall of the second fixing groove. The second rotating shaft passes through the second fixing plate and is rotatably connected to the second fixing plate. The second torsion spring is sleeved on the second rotating shaft. One end of the second torsion spring is fixed to the inner wall of the second fixing groove, and the other end of the second torsion spring is fixed to the side wall of the second fixing plate. The second torsion spring applies a force to the second fixing plate, causing the end of the second fixing plate away from the second rotating shaft to rotate toward the second fixing groove. The other end of the storage rope is provided with a second collar, which is sleeved on the second fixing plate.

[0011] Preferably, the width of the second fixing plate is smaller than the width of the second fixing groove, and the second torsion spring is located on both sides of the width direction of the second fixing plate.

[0012] Preferably, the length of the second fixing plate is less than the length of the second fixing groove, and the end of the second fixing plate away from the first rotating shaft is arc-shaped.

[0013] Preferably, after the first loop of the storage rope is fitted onto the first fixing plate, the second loop of the storage rope passes through the connecting hole to the side of the outer connecting plate away from the first fixing plate and wraps around the outermost circumference of the spring body once. Then, the second loop of the storage rope passes through the connecting hole from one side of the first fixing plate and is fitted onto the second fixing plate.

[0014] Preferably, a positioning groove is provided on the outermost circumferential surface of the spring body, the positioning groove is located in the middle of the width direction of the spring body, and the storage rope is locked in the positioning groove.

[0015] Preferably, the inner connecting plate has mounting holes, and both the mounting holes and the connecting holes are oblong-shaped holes.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. By binding the spring body with storage rope, the spring body is restricted from springing open, thereby increasing the packaging space and saving packaging and transportation costs of spiral springs;

[0018] 2. When tying up the spiral spring, place the first loop of the storage rope on the first fixed plate, then pass the second loop of the storage rope through the connecting hole to the side of the outer connecting plate away from the first fixed plate and wrap it around the outermost circumference of the spring body once. Then pass it through the connecting hole from one side of the first fixed plate and place it on the second fixed plate. When the spiral spring is needed, simply remove the first and second loops. The operation is convenient, and the connecting hole can be directly used to fix the parts that need to be connected. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the overall structure of the first fixing component of a spiral spring in an embodiment of this application.

[0020] Figure 2 This is a schematic diagram showing the overall structure of the second fixing component of a spiral spring in an embodiment of this application.

[0021] Figure 3 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram of point A in the middle.

[0022] Figure 4 This is used to illustrate the embodiments of this application. Figure 2 A magnified structural diagram at point B in the middle.

[0023] Figure 5 This is a schematic diagram illustrating the structure of the first torsion spring and the second torsion spring in the embodiments of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Spring body; 11. Positioning groove; 2. Inner connecting plate; 21. Mounting hole; 3. Outer connecting plate; 31. Connecting hole; 32. First fixing groove; 33. Second fixing groove; 4. Storage rope; 41. First collar; 42. Second collar; 5. First fixing component; 51. First fixing plate; 52. First rotating shaft; 53. First torsion spring; 6. Second fixing component; 61. Second fixing plate; 62. Second rotating shaft; 63. Second torsion spring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a spiral spring.

[0027] Reference Figure 1-5 The spiral spring includes a spring body 1. The two ends of the spring body 1 are respectively bent into an inner connecting plate 2 and an outer connecting plate 3. The inner connecting plate 2 is provided with a mounting hole 21, and the outer connecting plate 3 is provided with a connecting hole 31. Both the mounting hole 21 and the connecting hole 31 are oblong holes, and are fixed to the parts that need to be connected through the mounting hole 21 and the connecting hole 31.

[0028] A storage rope 4 passes through the connecting hole 31. The storage rope 4 is sleeved on the outermost peripheral wall of the spring body 1. A positioning groove 11 is provided on the outermost peripheral surface of the spring body 1. The positioning groove 11 is located in the middle of the width direction of the spring body 1. The storage rope 4 is locked in the positioning groove 11 to prevent the storage rope 4 from falling off the spring body 1.

[0029] The two ends of the storage rope 4 are fixed to the outer connecting plate 3 by the first fixing component 5 and the second fixing component 6, respectively.

[0030] The first fixing component 5 includes a first fixing plate 51, a first rotating shaft 52, and a first torsion spring 53. A first fixing groove 32 is provided on one side of the outer connecting plate 3 in the thickness direction for the first fixing plate 51 to be accommodated and rotated. The thickness of the first fixing plate 51 is less than the depth of the first fixing groove 32. The first fixing plate 51 is rotatably connected to the inner wall of the first fixing groove 32 through the first rotating shaft 52. Both ends of the first rotating shaft 52 are fixed to the inner wall of the first fixing groove 32. The first rotating shaft 52 passes through the first fixing plate 51 and is rotatably connected to the first fixing plate 51. The first torsion spring 53 is sleeved on the first rotating shaft 52. One end of the first torsion spring 53 is fixed to the inner wall of the first fixing groove 32, and the other end of the first torsion spring 53 is fixed to the side wall of the first fixing plate 51. The first torsion spring 53 applies a force to the first fixing plate 51, causing the end of the first fixing plate 51 away from the first rotating shaft 52 to rotate toward the first fixing groove 32. A first collar 41 is provided at one end of the storage rope 4, and the first collar 41 is sleeved on the first fixing plate 51.

[0031] The width of the first fixing plate 51 is smaller than the width of the first fixing groove 32, and the first torsion spring 53 is located on both sides of the width direction of the first fixing plate 51 to improve the uniformity of the force on the first fixing plate 51.

[0032] The length of the first fixing plate 51 is less than the length of the first fixing groove 32. The end of the first fixing plate 51 away from the first rotating shaft 52 is arc-shaped, which facilitates the rotation of the first fixing plate 51.

[0033] The second fixing component 6 includes a second fixing plate 61, a second rotating shaft 62, and a second torsion spring 63. The second fixing plate 61 and the first fixing plate 51 are located on opposite sides of the outer connecting plate 3 in the thickness direction. A second fixing groove 33 is formed on the other side of the outer connecting plate 3 in the thickness direction, allowing the second fixing plate 61 to be accommodated and rotated. The thickness of the second fixing plate 61 is less than the depth of the second fixing groove 33. The second fixing plate 61 is rotatably connected to the inner wall of the second fixing groove 33 via the second rotating shaft 62. Both ends of the second rotating shaft 62 are fixed to the inner wall of the second fixing groove 33. The second rotating shaft 62 passes through the second fixed plate 61 and is rotatably connected to the second fixed plate 61. The second torsion spring 63 is sleeved on the second rotating shaft 62. One end of the second torsion spring 63 is fixed to the inner wall of the second fixed groove 33, and the other end of the second torsion spring 63 is fixed to the side wall of the second fixed plate 61. The second torsion spring 63 applies a force to the second fixed plate 61, causing the end of the second fixed plate 61 away from the second rotating shaft 62 to rotate inward toward the second fixed groove 33. The other end of the storage rope 4 is provided with a second collar 42, which is sleeved on the second fixed plate 61.

[0034] The width of the second fixing plate 61 is smaller than the width of the second fixing groove 33, and the second torsion spring 63 is located on both sides of the width direction of the second fixing plate 61 to improve the uniformity of the force on the second fixing plate 61.

[0035] The length of the second fixing plate 61 is less than the length of the second fixing groove 33. The end of the second fixing plate 61 away from the first rotating shaft 52 is arc-shaped, which facilitates the rotation of the second fixing plate 61.

[0036] After the first loop 41 of the storage rope 4 is fitted onto the first fixing plate 51, the second loop 42 of the storage rope 4 passes through the connecting hole 31 to the side of the outer connecting plate 3 away from the first fixing plate 51 and wraps around the outermost circumference of the spring body 1. Then, the second loop 42 of the storage rope 4 passes through the connecting hole 31 from one side of the first fixing plate 51 and is fitted onto the second fixing plate 61.

[0037] By binding and storing the spring body 1 with the storage rope 4, the spring body 1 is restricted from springing open, thereby increasing the packaging space and saving the packaging and transportation costs of the spiral spring.

[0038] The implementation principle of a spiral spring in this application embodiment is as follows:

[0039] When tying up the spiral spring, the first loop 41 of the storage rope 4 is placed on the first fixing plate 51. Then, the second loop 42 of the storage rope 4 is passed through the connecting hole 31 to the side of the outer connecting plate 3 away from the first fixing plate 51 and wrapped around the outermost circumference of the spring body 1. Then, it is passed through the connecting hole 31 from one side of the first fixing plate 51 and placed on the second fixing plate 61. When the spiral spring is needed, the first loop 41 and the second loop 42 can be removed. The operation is convenient.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spiral spring, characterized in that: The spring body includes an inner connecting plate and an outer connecting plate bent at both ends. A connecting hole is provided on the outer connecting plate, and a storage rope passes through the connecting hole. The storage rope is sleeved on the outermost peripheral wall of the spring body. The two ends of the storage rope are fixed to the outer connecting plate by a first fixing component and a second fixing component, respectively.

2. The spiral spring according to claim 1, characterized in that: The first fixing component includes a first fixing plate, a first rotating shaft, and a first torsion spring. A first fixing groove is formed on one side of the outer connecting plate along its thickness direction, allowing the first fixing plate to be accommodated and rotated. The thickness of the first fixing plate is less than the depth of the first fixing groove. The first fixing plate is rotatably connected to the inner wall of the first fixing groove via the first rotating shaft. Both ends of the first rotating shaft are fixed to the inner wall of the first fixing groove. The first rotating shaft passes through the first fixing plate and is rotatably connected to it. The first torsion spring is sleeved on the first rotating shaft. One end of the first torsion spring is fixed to the inner wall of the first fixing groove, and the other end is fixed to the side wall of the first fixing plate. The first torsion spring applies a force to the first fixing plate, causing the end of the first fixing plate away from the first rotating shaft to rotate towards the first fixing groove. One end of the storage rope is provided with a first loop, which is sleeved on the first fixing plate.

3. The spiral spring according to claim 2, characterized in that: The width of the first fixing plate is smaller than the width of the first fixing groove, and the first torsion spring is located on both sides of the width direction of the first fixing plate.

4. The spiral spring according to claim 2, characterized in that: The length of the first fixing plate is less than the length of the first fixing groove, and the end of the first fixing plate away from the first rotating shaft is arc-shaped.

5. The spiral spring according to claim 2, characterized in that: The second fixing component includes a second fixing plate, a second rotating shaft, and a second torsion spring. The second fixing plate and the first fixing plate are located on opposite sides of the thickness direction of the outer connecting plate. The other side of the outer connecting plate in the thickness direction has a second fixing groove for the second fixing plate to be accommodated and rotated. The thickness of the second fixing plate is less than the depth of the second fixing groove. The second fixing plate is rotatably connected to the inner wall of the second fixing groove via the second rotating shaft. Both ends of the second rotating shaft are fixed to the inner wall of the second fixing groove. The second rotating shaft passes through the second fixing plate and is rotatably connected to the second fixing plate. The second torsion spring is sleeved on the second rotating shaft. One end of the second torsion spring is fixed to the inner wall of the second fixing groove, and the other end of the second torsion spring is fixed to the side wall of the second fixing plate. The second torsion spring applies a force to the second fixing plate, causing the end of the second fixing plate away from the second rotating shaft to rotate toward the second fixing groove. The other end of the storage rope is provided with a second collar, which is sleeved on the second fixing plate.

6. The spiral spring according to claim 5, characterized in that: The width of the second fixing plate is smaller than the width of the second fixing groove, and the second torsion spring is located on both sides of the width direction of the second fixing plate.

7. The spiral spring according to claim 5, characterized in that: The length of the second fixing plate is less than the length of the second fixing groove, and the end of the second fixing plate away from the first rotating shaft is arc-shaped.

8. The spiral spring according to claim 5, characterized in that: After the first loop of the storage rope is fitted onto the first fixed plate, the second loop of the storage rope passes through the connecting hole to the side of the outer connecting plate away from the first fixed plate and wraps around the outermost circumference of the spring body once. Then, the second loop of the storage rope passes through the connecting hole from one side of the first fixed plate and is fitted onto the second fixed plate.

9. The spiral spring according to claim 1, characterized in that: A positioning groove is provided on the outermost circumferential surface of the spring body. The positioning groove is located in the middle of the width direction of the spring body, and the storage rope is locked in the positioning groove.

10. The spiral spring according to claim 1, characterized in that: The inner connecting plate has mounting holes, and both the mounting holes and the connecting holes are oblong.

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