Isolink® isofix connector anti-backout screw

Abstract

The ISOFIX connector anti-loosening screw comprises a fixing screw, the fixing screw comprises a screw cap and a screw rod, and the inner side of the screw cap is provided with a sawtooth-shaped anti-loosening structure. The ISOFIX connector anti-loosening screw is characterized in that the inner side of the screw cap is provided with the anti-loosening structure, the inner side of the fixing screw is provided with the sawtooth-shaped anti-loosening structure, the anti-loosening structure comprises guide grooves which are arranged at intervals on the inner side of the screw cap, the guide grooves comprise guide surfaces and limiting surfaces, the guide surfaces are inclined surfaces, the limiting surfaces are perpendicular to horizontal surfaces, in the fixing process, the sawtooth-shaped anti-loosening structure is screwed into the inner structure of the connecting mechanism, in the screwing process and after being fully locked with the connecting mechanism, the limiting surfaces abut against the inner structure of the connecting mechanism, resistance is generated when the fixing screw is reversed, the reversing cannot be realized, and the anti-loosening function is realized.

Description

Technical Field

[0001] This utility model relates to an ISOFIX connector anti-loosening screw. Background Technology

[0002] An ISOFIX connector is a device for securing child safety seats to a vehicle. ISOFIX is a new standard for installing child seats in cars, making installation quick and easy. Child seats equipped with ISOFIX can be easily secured to the car's ISOFIX connectors, increasing safety.

[0003] ISOFIX connectors typically include a connector housing, a connection mechanism, and a button assembly. The connector housing is responsible for securing it to the child seat, while the connection mechanism connects to a rigid connection on the car seat. The button assembly works in conjunction with the connection mechanism, driving the connection mechanism to slide within the connector housing. Usually, the button assembly and the connection mechanism are secured with screws, but ordinary screws can loosen during bumpy rides or after prolonged use, resulting in an insecure connection between the button assembly and the connection mechanism. Utility Model Content

[0004] This invention provides an ISOFIX connector anti-loosening screw.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] An ISOFIX connector anti-loosening screw includes a fixing screw, which comprises a nut and a shank. The inner side of the nut is provided with a serrated anti-loosening structure. The anti-loosening structure includes guide grooves spaced apart on the inner side of the nut. The guide grooves include a guide surface and a limiting surface. The guide surface is an inclined surface. The limiting surface is parallel to the central axis of the fixing screw. The guide surface is inclined downwards in the same direction as the thread on the shank. The limiting surface intersects with the bottom of the guide surface.

[0007] Preferably, the fixing screw passes through the connecting mechanism from one side and is fixed to the button assembly.

[0008] Preferably, the connecting mechanism is disposed inside the connector housing, and the left and right sides of the connector housing are provided with through sliding holes, and the button assembly is connected to the connecting mechanism through the sliding hole on one side.

[0009] Preferably, the connector housing is a hollow square tube.

[0010] Preferably, the top end of the screw is provided with threads.

[0011] Compared with the prior art, the ISOFIX connector anti-loosening screw of this utility model has an anti-loosening structure set on the inner side of the nut. The anti-loosening structure is a sawtooth-shaped anti-loosening structure set on the inner side of the fixing screw. The anti-loosening structure includes guide grooves arranged at intervals on the inner side of the nut. The guide groove includes a guide surface and a limiting surface. The guide surface is an inclined surface and the limiting surface is perpendicular to the horizontal plane. During the fixing process, the sawtooth-shaped anti-loosening structure will screw into the internal structure of the connecting mechanism. After being fully locked with the connecting mechanism, the limiting surface abuts against the internal structure of the connecting mechanism. When the fixing screw is reversed, resistance will be generated, and it cannot be reversed, thus achieving the anti-loosening function. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the fixing screw for the ISOFIX connector anti-loosening screw of this utility model.

[0013] Figure 2 This is a first perspective view of the ISOFIX connector of this utility model.

[0014] Figure 3 This is a second perspective view of the ISOFIX connector of this utility model.

[0015] Figure 4 This is an exploded view of the ISOFIX connector of this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0017] like Figures 1 to 4 As shown, the ISOFIX connector anti-loosening screw includes a fixing screw 3, which includes a nut 31 and a screw 32. The top of the screw 32 is threaded. The inner side of the nut 31 is provided with a serrated anti-loosening structure, which includes guide grooves 311 spaced apart on the inner side of the nut 31. The guide grooves 311 include a guide surface 3111 and a limiting surface 3112. The guide surface 3111 is an inclined surface. The limiting surface 3112 is parallel to the central axis of the fixing screw 3, that is, perpendicular to the horizontal plane. The guide surface 3111 is inclined downward and the direction of the inclination is the same as the direction of the thread on the screw 32. The limiting surface 3112 intersects the bottom of the guide surface 3111.

[0018] The ISOFIX connector is provided with a connector housing 1, which is a hollow square tube. The left and right sides of the connector housing 1 are provided with through sliding holes 11. The sliding holes 11 are used to connect the button assembly 4. The connector housing 1 is provided with a connecting mechanism 2. The button assembly 4 passes through the sliding hole 11 on one side and is connected to the connecting mechanism 2. The button assembly 4 drives the connecting mechanism 2 to slide within the connector frame 1.

[0019] The connecting mechanism 2 and the button assembly 4 are fixed together by fixing screws 3.

[0020] The fixing screw 3 passes through the connecting mechanism 2 from one side and is fixed to the button assembly 4. During the fixing process, the serrated anti-loosening structure will be screwed into the structure of the connecting mechanism 2. During the screwing process and after the connecting mechanism 2 is fully locked, the limiting surface 3112 abuts against the internal structure of the connecting mechanism 2. When the fixing screw 3 is reversed, resistance will be generated, so it cannot be reversed. The fixing screw 3 can only rotate in the direction of the thread to achieve the anti-loosening function and increase the connection stability between the connecting mechanism 2 and the button assembly 4.

[0021] This utility model of an ISOFIX connector anti-loosening screw features an anti-loosening structure on the inner side of the nut 31. The anti-loosening structure includes guide grooves 311 spaced apart on the inner side of the nut 31. Each guide groove 311 includes a guide surface 3111 and a limiting surface 3112. The guide surface 3111 is inclined, and the limiting surface 3112 is perpendicular to the horizontal plane. During the fixing process, the serrated anti-loosening structure screws into the internal structure of the connecting mechanism 2. During screwing and after fully locking with the connecting mechanism 2, the limiting surface 3112 abuts against the internal structure of the connecting mechanism 2. This creates resistance when reversing the fixing screw 3, preventing reversal and thus achieving the anti-loosening function.

[0022] Finally, it should be noted that the above embodiments only illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ISOFIX connector anti-loosening screw, comprising a fixing screw (3), said fixing screw (3) comprising a nut (31) and a screw (32), characterized in that, The inner side of the nut (31) is provided with a serrated anti-loosening structure. The anti-loosening structure includes guide grooves (311) spaced apart on the inner side of the nut (31). The guide groove (311) includes a guide surface (3111) and a limiting surface (3112). The guide surface (3111) is an inclined surface. The limiting surface (3112) is parallel to the central axis of the fixing screw (3). The guide surface (3111) is inclined downward and the direction of the inclination is the same as the direction of the thread on the screw (32). The limiting surface (3112) intersects the bottom of the guide surface (3111).

2. The ISOFIX connector anti-loosening screw according to claim 1, characterized in that, The fixing screw (3) passes through the connecting mechanism (2) from one side and is fixed to the button assembly (4).

3. The ISOFIX connector anti-loosening screw according to claim 2, characterized in that, The connecting mechanism (2) is located inside the connector housing (1). The left and right sides of the connector housing (1) are provided with through sliding holes (11). The button assembly (4) is connected to the connecting mechanism (2) through the sliding hole (11) on one side.

4. The ISOFIX connector anti-loosening screw according to claim 3, characterized in that, The connector housing (1) is a hollow square tube.

5. The ISOFIX connector anti-loosening screw according to claim 1, characterized in that, The top end of the screw (32) is threaded.

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