Fastening anti-off positioning mechanism
The snap-fit structure between the anti-detachment plate and the housing solves the problem of cumbersome installation of the component mounting plate, achieving fast and reliable fixation and reducing cost and time requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YICHANG CHEDI TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-12
AI Technical Summary
The existing component mounting plate installation method is cumbersome, especially the threaded rod fixing method, which is costly and troublesome to assemble.
The design combines the anti-detachment plate and the shell, and utilizes the snap-fit structure of the bending part, barb part and limiting part to achieve quick installation and self-locking of the anti-detachment plate.
It simplifies the installation process, reduces costs, improves the stability and strength of the connection, and reduces assembly time and labor costs.
Smart Images

Figure CN224356463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an anti-detachment mechanism, and in particular to a fastening and anti-detachment positioning mechanism, which is applicable to various components that rely on mounting plates for fixation. Background Technology
[0002] In existing designs, mounting plates for various components are typically fixed to designated positions using screws, which is cumbersome and time-consuming to assemble.
[0003] For example, the patent with application number "202210391322.8" entitled "Anti-loosening structure for precision fasteners in server equipment" uses a threaded rod for fixing in terms of installation and fixation. Although it can ensure that it is not loosened, it is more troublesome to assemble and more expensive. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a fastening and anti-detachment positioning mechanism that can quickly assemble and fix the mounting plate of the component, which is efficient and time-saving.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A fastening and anti-detachment positioning mechanism includes a housing with a slot, an anti-detachment plate placed in the slot and positioned by a positioning mechanism;
[0007] The positioning mechanism includes bent portions on the left and right sides of the anti-detachment plate. The bent portions are placed in the slots of the housing. The bent portions are provided with barbs on both sides, and the barbs are engaged with the slots on the side walls of the slots.
[0008] The anti-detachment plate has an installation part on its front and rear edges, and a limiting part is provided on the corresponding inner wall of the housing. A gap is formed between the limiting part and the bottom surface of the slot, and the installation part is placed in the gap and limited by the limiting part.
[0009] The bent portion is wider at the top and narrower at the bottom, and the slot matches the bent portion.
[0010] The upper part of the limiting part is provided with an inclined surface that slopes downward toward the center of the housing.
[0011] The anti-detachment plate is a stainless steel plate with a certain thickness and elasticity.
[0012] The edge of the anti-detachment piece is provided with at least one positioning groove, and a positioning post is vertically provided on the bottom surface of the corresponding groove, and the positioning post is engaged with the positioning groove.
[0013] The shell is made of plastic material.
[0014] This utility model provides a fastening and anti-detachment positioning mechanism, which has the following technical effects:
[0015] 1) In this application, the anti-detachment plate (equivalent to a mounting plate for a certain component) is installed using a press-fit method. The anti-detachment plate is fastened to the housing via the mounting part (lateral snap) and the barbed part (longitudinal barbs). This method is simple, convenient, and reliable. This installation method eliminates the need for additional fasteners such as bolts and nuts, thereby reducing the cost of components. Custom designs can be made to meet specific fastening requirements based on different application needs. The assembly process is simple, reducing assembly time and labor costs.
[0016] 2) The barbed design allows the connector to self-lock after crimping, preventing it from easily falling off and improving the stability and reliability of the connection. The interlocking with the connected parts increases the connection strength, enabling it to withstand greater tensile and shear forces. The crimping process is simple and quick, requiring no complex assembly tools or equipment, thus reducing installation costs. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a schematic diagram of the installation structure of this utility model.
[0019] Figure 2 This is a top view of the present invention.
[0020] Figure 3 for Figure 2 Sectional view at point A in the middle.
[0021] Figure 4 This is a schematic diagram of the anti-detachment sheet in this utility model.
[0022] Figure 5 This is a schematic diagram of the shell structure in this utility model.
[0023] In the diagram: 1. Anti-detachment plate, 2. Shell, 1.1. Anti-detachment body, 1.2. Bending part, 1.3. Barbed part, 1.4. Mounting part, 1.5. Slot, 2.1. Slot, 2.2. Bay opening, 2.3. Limiting part, 2.4. Spacing, 2.5. Inclined surface, 2.6. Positioning post, 2.7. Detailed Implementation
[0024] like Figure 1 As shown, a fastening and anti-detachment positioning mechanism includes an anti-detachment plate 1 and a housing 2.
[0025] like Figure 4As shown, the anti-detachment piece 1 includes an anti-detachment body 1.1, with bent portions 1.2 on the left and right sides. The bent portions 1.2 are perpendicular to the anti-detachment body 1.1 and arranged vertically upwards. The bent portions 1.2 are wider at the top and narrower at the bottom, and barbs 1.3 are provided on both end faces of the bent portions 1.2. The grooves of the barbs 1.3 gradually narrow inwards and gradually widen outwards. This provides better guidance and installation for the barbs. In addition, mounting portions 1.4 are provided on the front and rear edges of the anti-detachment body 1.1, and at least one positioning groove 1.5 is provided at other positions on the edges of the anti-detachment body 1.1. In this embodiment, there are two positioning grooves 1.5.
[0026] like Figure 5 As shown, the housing 2 can be a cube, cuboid, or cylindrical structure, or other irregular shapes. The shape of the housing 2 is determined according to actual conditions and is not specifically limited. A slot 2.1 matching the anti-detachment piece 1 is provided on the upper part of the housing 2, and the slot 2.1 initially limits the edge of the anti-detachment piece 1. A retaining groove 2.2 is provided on the housing 2, located to the left and right of the slot 2.1, and the retaining groove 2.2 matches the bent part 1.2. A locking opening 2.3 is provided on the end faces of both sides of the retaining groove 2.2, and the locking opening 2.3 engages with the barbed part 1.3. A limiting part 2.4 is provided on the housing 2, located before and after the slot 2.1. The upper end of the limiting part 2.4 has an inclined slope 2.6 to facilitate the insertion of the mounting part 1.4 of the anti-detachment piece 1. The gap 2.5 between the limiting part 2.4 and the lower bottom surface of the slot 2.1 matches the thickness of the anti-detachment piece 1. The mounting part 1.4 is placed in the interval 2.5 and is restricted by the bottom surface of the limiting part 2.4 and the slot 2.1.
[0027] In addition, a positioning post 2.7 is vertically fixed on the bottom surface of the slot 2.1 of the housing 2, and the positioning post 2.7 is engaged with the positioning slot 1.5 for positioning and limiting.
[0028] like Figure 3 As shown, during installation, after applying a certain pressure to the anti-detachment piece 1, it is pressed into the slot 2.1. The upper and lower limits of the mounting part 1.4 are limited by the limiting part 2.4, and the anti-detachment piece 1 is positioned and circumferentially rotated and limited by the positioning pin 2.7 and the slot 2.2. The locking part 2.3 and the barb 1.3 are used to further prevent the anti-detachment piece 1 from falling off. After the anti-detachment piece 1 and the shell 2 are combined into one, the self-locking purpose can be achieved.
[0029] Working principle and process:
[0030] Taking electric motors as an example, in general products, motors do not exist independently. Transmission components are assembled on the motor shaft, and some of these components may even exceed the size of the motor itself. Therefore, motors do not exist independently. They are typically installed into the housing as components, meaning the motor is mounted on a mounting plate, which is then fixed to the corresponding housing using bolts and screws. This application changes the traditional bolt or screw mounting method to a snap-fit mounting method, which is simple and convenient after direct snap-fit. Furthermore, this design is not limited to the installation of motor mounting plates but is also applicable to the fixed installation of all components involving mounting plates.
Claims
1. A fastening and anti-detachment positioning mechanism, characterized in that: Includes a housing (2), on which a slot (2.1) is provided, and an anti-detachment piece (1) is placed in the slot (2.1) and positioned by a positioning mechanism; The positioning mechanism includes a bent portion (1.2) disposed on the left and right sides of the anti-detachment piece (1). The bent portion (1.2) is placed in the slot (2.2) of the housing (2). The bent portion (1.2) is provided with barbs (1.3) on both sides. The barbs (1.3) are engaged with the slots (2.3) on the side wall of the slot (2.2).
2. The fastening and anti-detachment positioning mechanism according to claim 1, characterized in that: The anti-detachment piece (1) has an installation part (1.4) on its front and rear edges, and a limiting part (2.4) is provided on the inner wall of the corresponding housing (2). A gap (2.5) is formed between the limiting part (2.4) and the bottom surface of the slot (2.1). The installation part (1.4) is placed in the gap (2.5) and limited by the limiting part (2.4).
3. The fastening and anti-detachment positioning mechanism according to claim 2, characterized in that: The bent portion (1.2) is wider at the top and narrower at the bottom, and the slot (2.2) matches the bent portion (1.2).
4. The fastening and anti-detachment positioning mechanism according to claim 3, characterized in that: The upper part of the limiting part (2.4) is provided with an inclined surface (2.6) that slopes downward toward the center of the housing (2).
5. The fastening and anti-detachment positioning mechanism according to claim 4, characterized in that: The anti-detachment sheet (1) is a stainless steel plate with a certain thickness and a certain elasticity.
6. The fastening and anti-detachment positioning mechanism according to claim 5, characterized in that: The edge of the anti-detachment piece (1) is provided with at least one positioning groove (1.5), and a positioning post (2.7) is vertically provided on the bottom surface of the corresponding slot (2.1), and the positioning post (2.7) is engaged with the positioning groove (1.5).
7. The fastening and anti-detachment positioning mechanism according to claim 6, characterized in that: The shell (2) is made of plastic material.
Citation Information
Patent Citations
CN114738367A