Fastener for calibrating and adjusting assembly clearance of automobile parts
By designing a fastener that includes a main frame, nut, limit and adjustment mechanism, the problem of relative movement of parts caused by assembly gaps was solved, achieving stable connection of automotive parts and driving safety.
Patent Information
- Application Number
- CN202520777089.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-23
AI Technical Summary
During the assembly of automotive parts, excessively large or small assembly gaps can affect the vehicle's performance and reliability. Furthermore, existing fasteners cannot effectively prevent changes in gaps caused by relative movement between parts, thus affecting driving safety.
A fastener comprising a main frame, a nut, a limiting mechanism, an adjusting mechanism, and a self-locking mechanism is designed. The position of the nut is adjusted by the limiting mechanism and the adjusting mechanism, and the nut is locked by the elastic telescopic rod and the self-locking mechanism to prevent loosening and achieve the calibration and adjustment of the gap.
It effectively prevents nuts from loosening, maintains stable connections between parts, ensures vehicle driving safety, reduces suspension system vibration, and improves assembly reliability and safety.
Smart Images
Figure CN223839526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts assembly technology, and in particular to a fastener for calibrating and adjusting the assembly gap of automotive parts. Background Technology
[0002] Fasteners are a class of mechanical parts used for fastening connections and are widely used. They are typically used to fasten two or more parts (or components) together as a whole. They are used in a wide range of industries, including electronics, energy, electrical appliances, machinery, and chemicals. In the assembly of automotive parts, assembly clearance refers to the reasonable gaps set in the design and manufacturing process to ensure smooth assembly of parts and components. These gaps allow for a certain amount of movement between parts to ensure that they can move and be installed normally.
[0003] During the actual assembly of automotive parts, excessively large assembly gaps can lead to increased friction, wear, and vibration between parts, thus affecting the overall performance and reliability of the vehicle. Conversely, excessively small gaps can cause parts to jam or wear excessively, also negatively impacting the performance of the vehicle. Therefore, during assembly, fasteners such as bolts and nuts are used to adjust and fix the positional relationship between parts to ensure driving safety. However, due to the gaps between parts, the vehicle's suspension system can experience frequent vibrations due to road conditions and other factors while the vehicle is in motion. This can cause relative movement between the bolts and nuts, altering the gaps between parts and compromising driving safety. Utility Model Content
[0004] The main purpose of this utility model is to provide a fastener for calibrating and adjusting the assembly gap of automotive parts.
[0005] The objective of this utility model can be achieved by adopting the following technical solution:
[0006] A fastener for calibrating and adjusting assembly gaps of automotive parts includes a main frame, a nut disposed within the main frame, a limiting mechanism connected to the outside of the nut, the limiting mechanism including a first elastic telescopic rod inserted into the nut, a mounting plate connected to the fixed end of the first elastic telescopic rod, a second elastic telescopic rod connected to the outside of the mounting plate, the movable end of the second elastic telescopic rod having an L-shaped structure, a support plate connected to the fixed end of the second elastic telescopic rod, and a hole adapted to the first elastic telescopic rod being provided on the nut.
[0007] Preferably, an adjustment mechanism is provided on the outer side of the support plate, the adjustment mechanism including a sliding seat, a sliding frame and a sliding groove.
[0008] Preferably, the support plate is fixedly connected to the sliding seat, and the slide groove is formed on the slide frame, and the sliding seat is slidably connected to the slide frame through the slide groove.
[0009] Preferably, two sets of self-locking mechanisms are symmetrically arranged on the outer side of the sliding seat, and the self-locking mechanism includes an elastic shaft, a bushing, and a self-locking plate.
[0010] Preferably, one end of the elastic shaft is fixed on the sliding seat, and the bushing is fixedly connected to the movable end of the elastic shaft.
[0011] Preferably, the bushing is fixedly connected to the self-locking plate, and one end of the self-locking plate abuts against the carriage.
[0012] Preferably, a through hole is provided at the center of the top of the main frame, and the diameter of the through hole is larger than the inner diameter of the nut.
[0013] The beneficial effects of this technology are:
[0014] By setting up a main frame and a limiting mechanism, the limiting mechanism is located inside the nut via the main frame. After the nut is installed, the staff adjusts the position of the limiting mechanism according to the nut's installation position. After adjustment, the staff pulls the mounting plate, which can drive the second telescopic rod on the support plate to extend and retract to adjust the height. During the adjustment process, the movable end of the first elastic telescopic rod contacts the side of the nut. When it moves to the pre-drilled hole on the nut, the movable end of the first elastic telescopic rod enters the nut hole, thereby locking the nut and preventing it from loosening. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a preferred embodiment of a fastener for calibrating and adjusting assembly gaps of automotive parts according to the present invention;
[0016] Figure 2 This is a main sectional view of a preferred embodiment of a fastener for calibrating and adjusting assembly gaps of automotive parts according to the present invention;
[0017] Figure 3 This is a schematic diagram of the support plate, sliding seat, and self-locking mechanism in a preferred embodiment of a fastener for calibrating and adjusting assembly gaps of automotive parts according to the present invention.
[0018] The annotations in the attached figures are explained as follows:
[0019] 1. Main frame; 2. Nut; 3. Limiting mechanism; 301. First elastic telescopic rod; 302. Mounting plate; 303. Second elastic telescopic rod; 304. Support plate; 4. Adjusting mechanism; 401. Sliding seat; 402. Slide carriage; 403. Slide groove; 5. Self-locking mechanism; 501. Elastic shaft; 502. Bushing; 503. Self-locking plate; 6. Through hole. Detailed Implementation
[0020] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.
[0021] like Figures 1-3 As shown in the figure, this embodiment provides a fastener for calibrating and adjusting assembly gaps of automotive parts, including a main frame 1. A nut 2 is disposed inside the main frame 1. A limiting mechanism 3 is connected to the outside of the nut 2. The limiting mechanism 3 includes a first elastic telescopic rod 301 that is inserted into the nut 2. The first elastic telescopic rod 301 can be inserted into the hole of the nut 2 to limit its movement. A mounting plate 302 is connected to the fixed end of the first elastic telescopic rod 301. The mounting plate 302 can connect the first elastic telescopic rod 301 and a second elastic telescopic rod 303. The second elastic telescopic rod 303 is connected to the outside of the mounting plate 302. The second elastic telescopic rod 303 can adjust the height of the first elastic telescopic rod 301. The movable end of the second elastic telescopic rod 303 has an L-shaped structure. A support plate 304 is connected to the fixed end of the second elastic telescopic rod 303. The support plate 304 can support the second elastic telescopic rod 303. A hole adapted to the first elastic telescopic rod 301 is opened on the nut 2.
[0022] like Figures 1-2 As shown, an adjustment mechanism 4 is provided on the outside of the support plate 304. The adjustment mechanism 4 includes a sliding seat 401, a slide 402 and a slide groove 403, which facilitates the position adjustment of the limiting mechanism 3 through the adjustment mechanism 4.
[0023] like Figures 1-2 As shown, the support plate 304 is fixedly connected to the sliding seat 401, and the slide groove 403 is formed on the slide frame 402. The sliding seat 401 is slidably connected to the slide frame 402 through the slide groove 403, which allows the sliding seat 401 to move along the slide frame 402 through the slide groove 403, thereby adjusting the horizontal position of the limiting mechanism 3.
[0024] like Figure 3 As shown, two sets of self-locking mechanisms 5 are symmetrically arranged on the outer side of the sliding seat 401. The self-locking mechanism 5 includes an elastic shaft 501, a bushing 502 and a self-locking plate 503, which facilitates locking the sliding seat 401 through the self-locking mechanism 5.
[0025] like Figure 3As shown, one end of the elastic shaft 501 is fixed on the sliding seat 401, and the bushing 502 is fixedly connected to the movable end of the elastic shaft 501, so that the bushing 502 can rotate along the elastic shaft 501.
[0026] like Figure 3 As shown, the bushing 502 is fixedly connected to the self-locking plate 503, and one end of the self-locking plate 503 abuts against the slide 402, so that the sliding seat 401 can be self-locked by the self-locking plate 503 abutting against the slide 402.
[0027] like Figures 1-2 As shown, a through hole 6 is provided at the middle of the top of the main frame 1, and the diameter of the through hole 6 is larger than the inner diameter of the nut 2, so that the bolt can pass through the through hole 6 to the top of the main frame 1 and connect with the nut 2.
[0028] The working principle of this device is as follows: In practical use, the operator installs the main frame 1 on one side of the component, then inserts bolts through adjacent components and installs bolts on nuts 2 to calibrate and adjust the gap between the components. After adjustment, the operator adjusts the position of the sliding seat 401 within the adjustment mechanism 4 according to the position of the holes on the nuts 2. During adjustment, the operator presses the self-locking plates 503 on both sides. At this time, the self-locking plates 503 are subjected to force and rotate along the elastic shaft 501 through the bushing 502. The self-locking plates 503 separate from the slide 402, and the sliding seat 401 can move along the slide 402 through the slide groove 403 to adjust the horizontal position of the limiting mechanism 3. After adjusting the position, the self-locking plate 503 is released. At this time, the self-locking plate 503 is reset through the bushing 502 and the elastic shaft 501 and abuts against the inner wall of the slide 402 to achieve self-locking of the sliding seat 401. After releasing the self-locking plate 503, the operator pulls the mounting plate 302. The mounting plate 302 can drive the second telescopic rod on the support plate 304 to extend and retract to adjust the height. During the adjustment process, the movable end of the first elastic telescopic rod 301 contacts the side of the nut 2. When it moves to the pre-drilled hole on the nut 2, the movable end of the first elastic telescopic rod 301 enters the hole of the nut 2, thereby locking the nut 2 and preventing the nut 2 from loosening.
[0029] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.
Claims
1. A fastener for calibrating and adjusting assembly gaps of automotive parts, characterized in that: The system includes a main frame (1), a nut (2) is provided inside the main frame (1), a limiting mechanism (3) is connected to the outside of the nut (2), the limiting mechanism (3) includes a first elastic telescopic rod (301) that is inserted into the nut (2), a mounting plate (302) is connected to the fixed end of the first elastic telescopic rod (301), a second elastic telescopic rod (303) is connected to the outside of the mounting plate (302), the movable end of the second elastic telescopic rod (303) is L-shaped, a support plate (304) is connected to the fixed end of the second elastic telescopic rod (303), and a hole adapted to the first elastic telescopic rod (301) is provided on the nut (2).
2. The fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 1, characterized in that: An adjustment mechanism (4) is provided on the outside of the support plate (304), the adjustment mechanism (4) including a sliding seat (401), a slide (402) and a slide groove (403).
3. A fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 2, characterized in that: The support plate (304) is fixedly connected to the sliding seat (401), and the slide groove (403) is formed on the slide frame (402). The sliding seat (401) is slidably connected to the slide frame (402) through the slide groove (403).
4. A fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 3, characterized in that: Two sets of self-locking mechanisms (5) are symmetrically arranged on the outer side of the sliding seat (401). The self-locking mechanism (5) includes an elastic shaft (501), a bushing (502), and a self-locking plate (503).
5. A fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 4, characterized in that: One end of the elastic shaft (501) is fixed on the sliding seat (401), and the bushing (502) is fixedly connected to the movable end of the elastic shaft (501).
6. A fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 5, characterized in that: The bushing (502) is fixedly connected to the self-locking plate (503), and one end of the self-locking plate (503) abuts against the slide (402).
7. A fastener for calibrating and adjusting assembly gaps of automotive parts according to claim 1, characterized in that: The main frame (1) has a through hole (6) at the top center, and the diameter of the through hole (6) is larger than the inner diameter of the nut (2).