Fool-proof screw locking auxiliary tool capable of being pre-pressed
By designing a foolproof and pre-tightening screw fastening auxiliary tool, the problems of incorrect wire harness installation direction and incomplete fastening were solved, achieving efficient and accurate wire harness installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU LINGDONG AUTOMOTIVE ELECTRONICS CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, high-voltage and low-voltage wire harnesses are prone to incorrect orientation and improper locking when installed on the cover, especially due to the lack of foolproof design.
A screw-locking auxiliary tooling with foolproof and pre-tightening features has been designed, including a fixing post, a positioning component, a limiting rod, and a pushing component. Through the cooperation of the clamping area and the limiting pressure plate, the wire harness is ensured to be correctly installed and pre-tightened.
It effectively prevents incorrect installation of the wire harness, ensures a tight fit between the wire harness and the cover, and improves installation efficiency and accuracy.
Smart Images

Figure CN224209459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary tooling, and in particular to a screw fastening auxiliary tooling that can prevent mistakes and pre-tighten. Background Technology
[0002] During product manufacturing, high-voltage and low-voltage wiring harnesses need to be installed on the cover using screws. Because the high-voltage and low-voltage wiring harnesses are directional, and the cover lacks a foolproof design, there is a risk of incorrect installation. Additionally, the high-voltage and low-voltage wiring harnesses have built-in gaskets, which may result in incomplete fitting and locking.
[0003] Therefore, in order to solve the above problems, how to design a screw fastening auxiliary tooling that can prevent mistakes and pre-tighten is a technical problem that the industry urgently needs to solve. Utility Model Content
[0004] The purpose of this utility model is to provide a screw fastening auxiliary tool that can prevent mistaken installation and pre-tighten, so as to solve the problem of preventing incorrect installation direction and pre-tightening high voltage and low voltage wire harnesses mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A foolproof and pre-tightening screw fastening auxiliary tooling includes a fixing post, a positioning component at the bottom of the fixing post, a plurality of clamping areas on the positioning component, a plurality of limiting rods at the front of the fixing post, a limiting pressure plate slidably sleeved on the limiting rod and located above the positioning component, a plurality of positioning areas on the limiting pressure plate corresponding one-to-one with the clamping areas, and a pushing component on the side of the fixing post, the pushing component being located above the limiting pressure plate and connected to the limiting pressure plate.
[0007] Preferably, the positioning component includes a chassis, which is connected to a fixing post, and the chassis is provided with a lid limiting first and a lid limiting second.
[0008] Preferably, the clamping area includes a first simulation cavity and a second simulation cavity. The first simulation cavity is located on the first lid limiter, and the second simulation cavity is located on the second lid limiter. The first simulation cavity and the second simulation cavity are arranged opposite to each other, and the space between them jointly defines the clamping area. The geometry of the clamping area is jointly defined by the relative surface contours of the first simulation cavity and the second simulation cavity.
[0009] Preferably, the pushing assembly includes a symmetrical set of feed frames, a rotating shaft is provided between the set of feed frames, a sliding mechanism is rotatably provided on the outer surface of the rotating shaft, a rotating shaft is rotatably provided on the sliding mechanism and passes through the sliding mechanism, a symmetrical set of swing linkages is provided on the rotating shaft, the sliding mechanism is located between the set of swing linkages, a power shaft is provided between the set of swing linkages, a pulling rod is rotatably provided on the power shaft, and the bottom of the pulling rod is connected to the limiting pressure plate.
[0010] Preferably, the positioning area includes a high-voltage wiring harness cavity and a low-voltage wiring harness cavity, which are located on a limiting pressure plate.
[0011] The beneficial effects of this utility model are:
[0012] 1. By placing the cover into the clamping area and placing the high-voltage and low-voltage wire harnesses on the cover, the user controls the pushing component to move downwards. When the high-voltage and low-voltage wire harnesses enter the positioning area of the limiting pressure plate, they are locked in place, ensuring that the high-voltage and low-voltage wire harnesses remain horizontal and pressed firmly against the cover. The user can also use a screwdriver to tighten the screws through the positioning area, making it foolproof and pre-tightening. This reduces the chance of incorrect installation of the high-voltage and low-voltage wire harnesses, and the pre-tightening also makes the high-voltage and low-voltage wire harnesses fit the cover more closely and lock in place.
[0013] 2. Furthermore, since the geometry of the clamping area is defined by the relative surface contours of simulation cavity one and simulation cavity two, it is designed based on a portion of the shape of the lid, ensuring that it can be directly inserted during use without the need for adjustment of the clamping position, thus saving time. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a front view of the present invention;
[0016] Figure 3 This is the left view of this utility model;
[0017] Figure 4 This is a utility model Figure 2 A diagram of AA in the middle;
[0018] Figure 5 This is a utility model Figure 2 A schematic diagram of BB in the middle.
[0019] In the diagram: 1. Fixed column; 2. Positioning component; 21. Chassis; 22. Cover limit one; 23. Cover limit two; 3. Clamping area; 31. Simulation cavity one; 32. Simulation cavity two; 4. Limiting rod; 5. Pushing component; 51. Feed frame; 52. Rotating shaft; 53. Sliding mechanism; 54. Rotating shaft; 55. Swinging link; 56. Power shaft; 57. Pulling rod; 6. Limiting pressure plate; 7. Positioning area; 71. Low-voltage wire harness cavity; 72. High-voltage wire harness cavity. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] See Figures 1-5 This utility model provides a screw-locking auxiliary tooling that is foolproof and pre-tightened, including a fixing post 1. A positioning component 2 is provided at the bottom of the fixing post 1. The positioning component 2 has several sets of clamping areas 3. Several limiting rods 4 are provided at the front of the fixing post 1. A limiting pressure plate 6 is slidably sleeved on the limiting rods 4 and located above the positioning component 2. The limiting pressure plate 6 has several sets of positioning areas 7, each corresponding to one of the clamping areas 3. A pushing component 5 is provided on the side of the fixing post 1, located above and connected to the limiting pressure plate 6. By placing the box cover into the clamping area 3 and placing the high-voltage and low-voltage wire harnesses on the box cover, the user controls the pushing component 5 to move downwards. When the high-voltage and low-voltage wire harnesses enter the positioning area 7 of the limiting pressure plate 6, they are locked in place, ensuring that the high-voltage and low-voltage wire harnesses remain horizontal and pressed against the box cover installation position. Furthermore, the user can use a screwdriver to tighten the screws through the positioning area 7.
[0023] See Figure 1 The positioning component 2 includes a chassis 21, which is connected to the fixing post 1. The chassis 21 is provided with a lid limiting first 22 and a lid limiting second 23.
[0024] See Figure 1The clamping area 3 includes a first simulation cavity 31 and a second simulation cavity 32. The first simulation cavity 31 is located on a first lid limiting position 22, and the second simulation cavity 32 is located on a second lid limiting position 23. The first simulation cavity 31 and the second simulation cavity 32 are arranged opposite to each other, and the space between them together defines the clamping area 3. The geometry of the clamping area 3 is defined by the relative surface contours of the first simulation cavity 31 and the second simulation cavity 32. By inserting a portion of the lid into the first simulation cavity 31 and the second simulation cavity 32 of the clamping area 3, the lid is fixed and limited.
[0025] See Figures 1-5 The pushing component 5 includes a symmetrical set of feed frames 51, with a rotating shaft 52 between the feed frames 51. A sliding mechanism 53 is rotatably mounted on the outer surface of the rotating shaft 52. A rotating shaft 54 rotatably mounts the sliding mechanism 53 and passes through it. A symmetrical set of swing links 55 is mounted on the rotating shaft 54. The sliding mechanism 53 is located between the swing links 55. A power shaft 56 is located between the swing links 55. A pulling rod 57 rotatably mounts the power shaft 56, and the bottom of the pulling rod 57 is connected to a limiting pressure plate 6. When the sliding mechanism 53 of the pushing component 5 rotates downwards, it causes the rotating shaft 54 to begin swinging. At this time, because the power shaft 56 and the pulling rod 57 on the rotating shaft 54 rotate, and the pulling rod 57 and the limiting pressure plate 6 are limited by the limiting rod 4, the limiting pressure plate moves downwards.
[0026] See Figure 1 The positioning area 7 includes a high-voltage harness cavity 72 and a low-voltage harness cavity 71, which are located on the limiting pressure plate 6. The high-voltage harness cavity 72 and the low-voltage harness cavity 71 in the positioning area 7 limit the high-voltage harness and the low-voltage harness.
[0027] Working principle of this utility model:
[0028] In use, by placing a portion of the box cover into the simulation cavity 31 and simulation cavity 32 of the clamping area 3, the box cover is fixed and limited. The high-voltage and low-voltage wire harnesses are then placed on the box cover and aligned with the high-voltage wire harness cavity 72 and low-voltage wire harness cavity 71 in the positioning area 7. The user then controls the sliding mechanism 53 of the pushing component 5 to rotate downwards, causing the rotating shaft 54 to begin swinging. At this time, due to the rotation of the power shaft 56 and the pulling rod 57 on the rotating shaft 54, and the pulling rod 57 and the limiting pressure plate 6 being limited by the limiting rod 4, the limiting pressure plate is moved downwards. When the high-voltage and low-voltage wire harnesses enter the high-voltage wire harness cavity 72 and low-voltage wire harness cavity 71 in the positioning area 7 of the limiting pressure plate 6, the high-voltage and low-voltage wire harnesses are locked in place, ensuring that the high-voltage and low-voltage wire harnesses remain horizontal and pressed tightly against the box cover installation position. Furthermore, the user can use a screw gun to tighten the screws through the high-voltage wire harness cavity 72 and low-voltage wire harness cavity 71 in the positioning area 7, thus preventing fooling and pre-tightening. This reduces incorrect installation direction of the high-voltage and low-voltage wire harnesses, and the pre-tightening also makes the high-voltage and low-voltage wire harnesses fit the box cover more closely and lock in place.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A foolproof and pre-tightening screw fastening auxiliary tooling, comprising a fixing post (1), characterized in that: The fixed column (1) is provided with a positioning component (2) at its bottom. The positioning component (2) is provided with several sets of clamping areas (3). The fixed column (1) is provided with several sets of limiting rods (4) in front. The limiting rods (4) are slidably fitted with limiting pressure plates (6) and located above the positioning component (2). The limiting pressure plates (6) are provided with several sets of positioning areas (7) and correspond one-to-one with the clamping areas (3). The fixed column (1) is provided with a pushing component (5) on its side. The pushing component (5) is located above the limiting pressure plates (6) and connected to the limiting pressure plates (6).
2. The screw fastening auxiliary tooling with foolproof and pre-tightening capability according to claim 1, characterized in that: The positioning component (2) includes a chassis (21), which is connected to a fixed post (1). The chassis (21) is provided with a lid limiting first (22) and a lid limiting second (23).
3. The screw fastening auxiliary tooling with foolproof and pre-tightening capability according to claim 2, characterized in that: The clamping area (3) includes a first simulation cavity (31) and a second simulation cavity (32). The first simulation cavity (31) is located on the first lid limiter (22), and the second simulation cavity (32) is located on the second lid limiter (23). The first simulation cavity (31) and the second simulation cavity (32) are arranged opposite to each other, and the space between them jointly defines the clamping area (3). The geometry of the clamping area (3) is jointly defined by the relative surface contours of the first simulation cavity (31) and the second simulation cavity (32).
4. The screw fastening auxiliary tooling with foolproof and pre-tightening capability according to claim 1, characterized in that: The pushing assembly (5) includes a symmetrical set of feed frames (51), a rotating shaft (52) is provided between the set of feed frames (51), a sliding mechanism (53) is rotatably provided on the outer surface of the rotating shaft (52), a rotating shaft (54) is rotatably provided on the sliding mechanism (53) and passes through the sliding mechanism (53), a symmetrical set of swing linkages (55) is provided on the rotating shaft (54), the sliding mechanism (53) is located between the set of swing linkages (55), a power shaft (56) is provided between the set of swing linkages (55), a pulling rod (57) is rotatably provided on the power shaft (56), and the bottom of the pulling rod (57) is connected to the limiting pressure plate (6).
5. The screw fastening auxiliary tooling with foolproof and pre-tightening capability according to claim 1, characterized in that: The positioning area (7) includes a high-voltage wire harness cavity (72) and a low-voltage wire harness cavity (71), which are located on the limiting pressure plate (6).