A new type of automobile tension spring device

Abstract

The utility model discloses a novel car tension spring device belongs to tension spring technical field, including spring, the upper end and the lower end of spring are connected with upper connecting rod and lower connecting rod respectively, the outer end part of upper connecting rod and lower connecting rod all is provided with the fixed plate, the fixed plate is fixed with the connecting plate through first fixed screw subassembly, the outer side of connecting plate of two ends is fixed with the same structure of hook connecting assembly that constitutes, hook connecting assembly includes the hook fixed on the surface of connecting plate, the outer side end of hook is connected with the rotary lever through fixed bearing, the bottom of rotary lever is fixed in the inner side end of hook through second fixed screw subassembly, the utility model discloses a novel car tension spring device above, has improved the connecting fixed effect of tension spring significantly, prevents the drop, when the hook of tension spring end part is damaged or the model is not matched, can carry out partial replacement, is favorable to reduce the cost, avoids the waste.

Description

Technical Field

[0001] This utility model relates to the field of tension spring technology, and in particular to a novel automotive tension spring device. Background Technology

[0002] A tension spring, also called a tension spring or simply a tension spring, is a helical spring that bears axial tensile force. Tension springs are generally made of materials with a circular cross-section.

[0003] A typical tension spring consists of a spring body with spring coils tightly interlocked and barbs integrally formed on both sides of the spring body. When in use, the tension spring is installed by hooking the barbs at both ends of the spring body onto the parts that need to be connected by the tension spring.

[0004] Currently, automotive tension springs on the market still have defects in use. For example, tension springs are prone to deformation during use. Since the barbs at both ends are generally open, they are prone to deformation and falling off under excessive tension. In addition, when the barbs at both ends of the tension spring are damaged, the tension spring body cannot be used because the barbs are integrated with the tension spring body, resulting in a large waste. Summary of the Invention

[0005] The purpose of this invention is to provide a novel automotive tension spring device that can significantly improve the connection and fixing effect of the tension spring, prevent it from falling off, and allow for partial replacement when the hook at the end of the tension spring is damaged or the model is incompatible, which helps to reduce costs and avoid waste.

[0006] To achieve the above objectives, this utility model provides a novel automotive tension spring device, comprising a spring, with an upper connecting rod and a lower connecting rod respectively connected to the upper and lower ends of the spring. A fixing plate is provided at the outer ends of both the upper and lower connecting rods. A connecting plate is fixed to the fixing plate by a first fixing screw assembly. Hook connecting assemblies with identical structures are fixed to the outer sides of the connecting plates at both ends. The hook connecting assembly includes a hook fixed to the surface of the connecting plate. A rotating rod is connected to the outer end of the hook via a fixing bearing. The bottom of the rotating rod is fixed to the inner end of the hook by a second fixing screw assembly.

[0007] Preferably, a soft cylindrical core is embedded on the inner side of the spring.

[0008] Preferably, the outer end of the hook is provided with a fixing groove, and the top of the rotating rod is embedded in the fixing groove and fixed by the fixing bearing.

[0009] Preferably, a first connecting block is provided at the bottom of the rotating rod, and a second connecting block matching the first connecting block is provided at the inner end of the hook. The first connecting block and the second connecting block are spliced ​​together to form a cylindrical structure with the same cross-sectional area as the rotating rod. Threaded holes are opened laterally on both the first connecting block and the second connecting block, and they are fixed by the second fixing screw assembly.

[0010] Preferably, a slide tube that fits against the outer surface of the rotating rod is movably sleeved on the rotating rod, and a screw hole that matches the position of the threaded hole of the first connecting block and the second connecting block is opened on the side of the slide tube, and the second fixing screw assembly passes through the screw hole for fixing.

[0011] Preferably, a limiting block is provided on the side of the bottom of the rotating rod, and the height of the limiting block is greater than the maximum gap between the inner wall of the slide tube and the outer wall of the rotating rod.

[0012] Therefore, the novel automotive tension spring device described above can significantly improve the connection and fixing effect of the tension spring, prevent it from falling off, and allow for partial replacement when the hook at the end of the tension spring is damaged or the model is incompatible, which helps to reduce costs and avoid waste.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a novel automotive tension spring device in the open state of the rotating rod in an embodiment of this utility model;

[0015] Figure 2 This is a structural diagram of part A;

[0016] Figure 3 This is a side view schematic diagram of an embodiment of a novel automotive tension spring device according to this utility model;

[0017] Figure 4 This is a structural diagram of section B;

[0018] Figure 5 This is a schematic diagram of the structure of a novel automotive tension spring device in the locked state of the rotating rod in an embodiment of this utility model;

[0019] Figure 6 This is a structural diagram of section C.

[0020] Figure Labels

[0021] 1. Spring; 2. Soft column core; 3. Upper connecting rod; 4. Lower connecting rod; 5. Fixing plate; 6. First fixing screw assembly; 7. Connecting plate; 8. Hook; 81. Fixing groove; 82. Second connecting block; 9. Fixing bearing; 10. Rotating rod; 11. First connecting block; 12. Limiting block; 13. Sliding tube; 14. Screw hole; 15. Second fixing screw assembly. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown, this utility model provides a novel automotive tension spring device, including a spring 1 that provides rebound tension for the entire tension spring device. A soft core 2 is embedded inside the spring 1. The soft core 2 can not only protect the entire spring 1 from bending, but also prevent the spring 1 from breaking due to excessive bending and long service life.

[0026] The upper end and lower end of the spring 1 are respectively connected to the upper connecting rod 3 and the lower connecting rod 4. The outer ends of the upper connecting rod 3 and the lower connecting rod 4 are provided with fixing plates 5. The fixing plates 5 are fixed with connecting plates 7 by the first fixing screw assembly 6. The outer sides of the connecting plates 7 at the upper and lower ends are fixed with hook connecting assemblies with the same composition (the size of the hook connecting assemblies on both sides can be different).

[0027] This structural design allows for flexible switching of the hook connection components on the connecting plate 7. When a hook connection component is damaged or its size does not match the position to be connected, it can be replaced independently without adjusting other structures (simply loosen the corresponding first fixing screw assembly 6, remove the connecting plate 7, replace it with a connecting plate 7 with a new hook connection component, and then tighten it onto the corresponding fixing plate 5 using the first fixing screw assembly 6).

[0028] like Figure 3 and Figure 4 As shown, the hook connection assembly includes a hook 8 fixed to the surface of the connecting plate 7, which is the main structure for connecting the corresponding position. The outer end of the hook 8 is connected to a rotating rod 10 via a fixed bearing 9. Wherein, as Figure 4 As shown, a fixing groove 81 is provided at the outer end of the hook 8, and the top of the rotating rod 10 is embedded in the fixing groove 81 and fixed by the fixing bearing 9, so that the rotating rod 10 can rotate flexibly around the fixing bearing 9 to adapt to different connection positions.

[0029] like Figure 2 As shown, the bottom of the rotating rod 10 is fixed to the inner end of the hook 8 by the second fixing screw assembly 15. Specifically, the bottom of the rotating rod 10 is provided with a first connecting block 11, and the inner end of the hook 8 is provided with a second connecting block 82 that matches the first connecting block 11. The first connecting block 11 and the second connecting block 82 are spliced ​​together to form a cylindrical structure with the same cross-sectional area as the rotating rod 10, which facilitates the connection and fixation of the first connecting block 11 and the second connecting block 82. Threaded holes are laterally correspondingly opened on both the first connecting block 11 and the second connecting block 82, so that the screws of the second fixing screw assembly 15 can pass through. A slide tube 13 that fits against the outer surface of the rotating rod 10 is movably sleeved on the rotating rod 10, so that the slide tube 13 can slide on the rotating rod 10 without lateral wobbling. Screw holes 14 that match the positions of the threaded holes of the first connecting block 11 and the second connecting block 82 are opened on the side of the slide tube 13, and the second fixing screw assembly 15 passes through the screw holes 14 for fixation. The second fixing screw assembly 15 prevents the slide tube 13 from shifting and the first connecting block 11 and the second connecting block 82 from loosening. Because the slide tube 13 encloses the connection, it further secures the connection between the first connecting block 11 and the second connecting block 82, preventing easy separation. Figure 5 and Figure 6 As shown.

[0030] like Figure 6As shown, a limiting block 12 is provided on the side of the bottom of the rotating rod 10. The height of the limiting block 12 is greater than the maximum gap between the inner wall of the slide tube 13 and the outer wall of the rotating rod 10. This not only prevents the slide tube 13 from falling off, but also makes it easier to find a suitable fixing position for the slide tube 13. When the slide tube 13 contacts the limiting block 12, the screw hole 14 is just in the same plane as the threaded hole of the first connecting block 11 and the second connecting block 82. Simply rotate the slide tube 13 to align the screw hole 14 with the threaded hole, and then lock it with the second fixing screw assembly 15 to achieve quick fixing.

[0031] Therefore, the novel automotive tension spring device described above can significantly improve the connection and fixing effect of the tension spring, prevent it from falling off, and allow for partial replacement when the hook at the end of the tension spring is damaged or the model is incompatible, which helps to reduce costs and avoid waste.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A novel automotive tension spring device, characterized in that: The device includes a spring, with an upper connecting rod and a lower connecting rod connected to its upper and lower ends, respectively. A fixing plate is provided at the outer end of both the upper and lower connecting rods. A connecting plate is fixed to the fixing plate by a first fixing screw assembly. Hook connecting assemblies with identical structures are fixed to the outer sides of the connecting plates at both ends. The hook connecting assembly includes a hook fixed to the surface of the connecting plate. A rotating rod is connected to the outer end of the hook via a fixing bearing. The bottom of the rotating rod is fixed to the inner end of the hook by a second fixing screw assembly.

2. The novel automotive tension spring device according to claim 1, characterized in that: A soft cylindrical core is embedded on the inner side of the spring.

3. The novel automotive tension spring device according to claim 1, characterized in that: The outer end of the hook is provided with a fixing groove, and the top of the rotating rod is embedded in the fixing groove and fixed by the fixing bearing.

4. A novel automotive tension spring device according to claim 1, characterized in that: The bottom of the rotating rod is provided with a first connecting block, and the inner end of the hook is provided with a second connecting block that matches the first connecting block. The first connecting block and the second connecting block are spliced ​​together to form a cylindrical structure with the same cross-sectional area as the rotating rod. The first connecting block and the second connecting block are both provided with threaded holes laterally and are fixed by the second fixing screw assembly.

5. A novel automotive tension spring device according to claim 4, characterized in that: A sliding tube that fits against the outer surface of the rotating rod is movably sleeved on the rotating rod. The side of the sliding tube has a screw hole that matches the position of the threaded hole of the first connecting block and the second connecting block. The second fixing screw assembly passes through the screw hole for fixing.

6. A novel automotive tension spring device according to claim 5, characterized in that: A limit block is provided on the side of the bottom of the rotating rod, and the height of the limit block is greater than the maximum gap between the inner wall of the slide tube and the outer wall of the rotating rod.

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