A connector protective tail shell with a double locking structure

Abstract

This utility model relates to the field of connector protection technology, specifically a connector protection tail shell with a double locking structure, including a front shell and a rear shell, the front shell and the rear shell being adapted to each other. The front shell has symmetrical slide bars on its upper and lower sides, and the rear shell has slide rails on its upper and lower sides. The slide bars pass through the slide rails and are damped and slidably connected to them. A groove is provided on one side of the slide rail, and a limiting device for limiting the slide rail and slide bars is provided in the groove. A locking device for locking the limiting device is provided on the upper side wall of the rear shell. The limiting device includes a spring, a sliding block and a limiting plate. The locking device includes a fixed box, a threaded rod, a lifting block and a locking rod. A damping turntable is provided at the upper end of the fixed box. This double locking mode retains the quick assembly characteristics of elastic locking and enhances the impact resistance under extreme working conditions through threaded force locking.

Description

Technical Field

[0001] This utility model relates to the field of connector protection technology, specifically a connector protection tail shell with a double locking structure. Background Technology

[0002] As is well known, in existing electronic equipment connection operations, the connector tail shell, as the core protective component of cables and interfaces, directly determines the stability of signal transmission and the service life of the equipment through its locking reliability.

[0003] Traditional connector tail shells often use a single-stage locking structure, such as spring clips or threaded tightening to fix the shell. This can easily lead to fatigue deformation during long-term insertion and removal or temperature changes, causing locking failure. This results in increased contact resistance or even loosening of the interface, seriously affecting the safe operation of the equipment. At the same time, it leads to low assembly efficiency and increases manufacturing costs and failure risks. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a connector protective tail shell with a double locking structure.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a connector protective tail shell with a double locking structure, comprising a front shell and a rear shell, wherein the front shell and the rear shell are adapted to each other, symmetrical slide bars are provided on the upper and lower sides of the front shell, and slide rails are provided on the upper and lower sides of the rear shell, wherein the slide bars pass through the slide rails and are slidably connected to them with damping, a groove is provided on one side of the slide rail, and a limiting device for limiting the slide rail and the slide bars is provided in the groove, and a locking device for locking the limiting device is provided on the upper side wall of the rear shell.

[0008] To prevent the slider from accidentally slipping off, the present invention improves upon the following: the limiting device includes a spring, a sliding block, and a limiting plate. One end of the spring is connected to the side wall of the groove, and the other end is connected to the sliding block. The sliding block is adapted to and slidably connected to the groove. The limiting plate is located at one end of the sliding block. A limiting hole is provided on one side wall of the slider. The limiting plate passes through the limiting hole and the side wall of the slide rail and is slidably connected to it. The limiting plate is provided with an inclined surface.

[0009] To further achieve mechanical locking and enhance tensile strength, this utility model is improved as follows: the locking device includes a fixed box, a threaded rod, a lifting block, and a locking rod. The fixed box is located on the upper side wall of the rear shell, the threaded rod passes through the fixed box, the lifting block is on the threaded rod, the threaded rod passes through the lifting block and is threadedly connected to it, the lifting block is fitted against and slidably connected to the inner side wall of the fixed box, the locking rod is located at the lower end of the lifting block and is slidably connected to the threaded rod, the sliding block is provided with a locking hole, and the locking rod passes through the upper side wall of the rear shell and the locking hole and is slidably connected to it.

[0010] To control the rotation of the threaded rod and prevent accidental unlocking, the present invention is improved as follows: a damping turntable is provided at the upper end of the fixed box, the damping turntable is damped and rotatably connected to the fixed box, and the threaded rod is connected to the lower end of the damping turntable.

[0011] To improve waterproof and dustproof performance, the present invention includes the following improvement: an elastic sealing ring is provided between the front shell and the rear shell.

[0012] To increase the contact area between the slider and the slide rail, the present invention is improved by having the cross-section of the slider and the slide rail be T-shaped.

[0013] To avoid material deformation or degradation of electrical performance due to high temperature, the present invention is improved by providing heat dissipation mesh on the side walls of both the front shell and the rear shell.

[0014] To reduce the frictional resistance between the slider and the slide rail, the present invention includes the following improvement: the surface of the slider is coated with a self-lubricating coating, which is made of polytetrafluoroethylene or molybdenum disulfide.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a connector protective tail shell with a double locking structure, which has the following beneficial effects:

[0017] The connector with a double locking structure protects the tail shell and is equipped with a front shell, a rear shell, and a limiting device. When the user pushes the front shell slide bar into the rear shell slide rail, the spring in the slide rail groove drives the sliding block to move, causing the inclined limiting plate to embed into the limiting hole of the slide bar. The wedge effect of the inclined surface is used to achieve initial locking, effectively preventing the slide bar from accidentally retracting.

[0018] A locking device is provided, which drives the threaded rod to rotate by rotating the damping turntable, so that the locking rod is precisely inserted into the locking hole of the sliding block, applying secondary mechanical reinforcement to the limiting device, completely eliminating assembly gaps, and forming a rigid tensile support.

[0019] This dual locking mode retains the quick assembly characteristics of elastic locking while enhancing the impact resistance under extreme working conditions through threaded force locking. It combines automatic elastic locking with active mechanical locking to form a graded protection mechanism, which is especially suitable for environments with high vibration, frequent insertion and removal, or large temperature differences. Attached Figure Description

[0020] Figure 1 This is a first-view schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a second-view schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal cross-section of the rear shell of the present invention;

[0023] Figure 4 This is an exploded view of the structural locking device and the limiting device of this utility model.

[0024] In the diagram: 1. Front shell; 2. Rear shell; 3. Fixing box; 4. Damping turntable; 5. Sliding bar; 6. Slide rail; 7. Limiting hole; 8. Spring; 9. Sliding block; 10. Limiting plate; 11. Locking rod; 12. Lifting block; 13. Threaded rod. Detailed Implementation

[0025] 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.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-4 A connector protective tail shell with a double locking structure includes a front shell 1 and a rear shell 2, the front shell 1 and the rear shell 2 being adapted to each other. Symmetrical slide bars 5 are provided on the upper and lower sides of the front shell 1, and slide rails 6 are provided on the upper and lower sides of the rear shell 2. The slide bars 5 pass through the slide rails 6 and are slidably connected to them with damping. A groove is provided on one side of the slide rail 6, and a limiting device for restricting the movement of the slide rail 6 and the slide bar 5 is provided in the groove. A locking device for locking the limiting device is provided on the upper side wall of the rear shell 2. The limiting device includes a spring 8, a sliding block 9, and a limiting plate 10. One end of the spring 8 is connected to the side wall of the groove, and the other end is connected to the sliding block 9. The sliding block 9 is adapted to the groove and slidably connected. The limiting plate 10 is located at one end of the sliding block 9. A limiting hole 7 is provided on one side wall of the slide bar 5, and the limiting plate 10 passes through the limiting hole 7. The slide rail 6 is slidably connected to the side wall of the sliding rail 6. The limiting plate 10 is set with an inclined surface. The locking device includes a fixed box 3, a threaded rod 13, a lifting block 12 and a locking rod 11. The fixed box 3 is on the upper side wall of the rear shell 2. The threaded rod 13 passes through the fixed box 3. The lifting block 12 is on the threaded rod 13. The threaded rod 13 passes through the lifting block 12 and is threadedly connected to it. The lifting block 12 fits against and is slidably connected to the inner side wall of the fixed box 3. The locking rod 11 is at the lower end of the lifting block 12 and is slidably connected to the threaded rod 13. The sliding block 9 is provided with a locking hole. The locking rod 11 passes through the upper side wall of the rear shell 2 and the locking hole and is slidably connected to it. The upper end of the fixed box 3 is provided with a damping turntable 4. The damping turntable 4 is damped and rotatably connected to the fixed box 3. The threaded rod 13 is connected to the lower end of the damping turntable 4.

[0029] During use, initially, the damping turntable 4 of the locking device is in a loose state. The threaded rod 13 drives the lifting block 12 to the top of the fixed box 3. At this time, the locking rod 11 is completely retracted into the fixed box 3 and does not contact the sliding block 9 of the limiting device. Gently push the connector axially to fully fit the groove in the front shell 1. Insert the connecting wire from the tail end of the rear shell 2 and use the groove inside the rear shell 2 to fix the cable and prevent pulling from causing the contact to loosen. Then align the slide bar 5 of the front shell 1 with the slide rail 6 of the rear shell 2 and slide along the slide bar 5. When the rail 6 pushes the front shell 1, and the front end of the slide bar 5 contacts the inclined surface of the limiting plate 10, the inclination angle of the inclined surface forces the limiting plate 10 to retract into the groove. At the same time, the spring 8 is compressed, and the sliding block 9 slides into the groove. When the slide bar 5 is fully pushed into the bottom of the slide rail 6, the limiting hole 7 on the side wall of the slide bar 5 moves to the position of the limiting plate 10. At this time, the spring 8 releases its elastic force, pushing the sliding block 9 to reset outward. The inclined surface of the limiting plate 10 is fully embedded in the limiting hole 7. Due to the wedge effect of the inclined surface of the limiting plate 10... The reverse pulling force (such as vibration or cable pulling) will further increase the friction between the limiting plate 10 and the limiting hole 7, forming a self-increasing force locking to prevent the slide bar 5 from retracting. Finally, manually rotate the damping turntable 4 clockwise. Its damping resistance can prevent accidental unlocking caused by accidental contact. The turntable drives the threaded rod 13 to rotate synchronously. Since the threaded rod 13 and the lifting block 12 are connected by threads, and the lifting block 12 is constrained by the inner wall of the fixed box 3 and cannot rotate, the threaded rotation forces the lifting block 12 to move vertically down along the threaded rod 13. When the lifting block 12 moves down, the locking rod 11 at its bottom moves down accordingly, passing through the locking holes on the rear shell 2 and the sliding block 9 in sequence. After the locking rod 11 is inserted, it directly restricts the lateral movement freedom of the sliding block 9, so that the limiting plate 10 cannot retract into the groove, completely locking the relative position of the slide bar 5 and the slide rail 6. The insertion of the locking rod 11 forms a mechanical reinforcement of the limiting device. Even if the spring 8 fails or is subjected to extreme external force impact, the slide bar 5 and the slide rail 6 still cannot be separated, achieving the final state of double locking.

[0030] In actual use, it is necessary to prevent dust and moisture from entering and improve waterproof and dustproof performance. In order to meet the above requirements, in this embodiment, an elastic sealing ring is provided between the front shell 1 and the rear shell 2.

[0031] In actual use, it is necessary to increase the contact area between the slider 5 and the slide rail 6 to prevent misalignment or derailment during assembly. In order to meet the above requirements, in this embodiment, the cross-section of the slider 5 and the slide rail 6 is T-shaped.

[0032] In actual use, it is necessary to accelerate the dissipation of internal heat to avoid material deformation or degradation of electrical performance due to high temperature. In order to meet the above requirements, in this embodiment, heat dissipation mesh is provided on the side walls of both the front shell 1 and the rear shell 2.

[0033] In actual use, it is necessary to reduce the frictional resistance between the slider 5 and the slide rail 6 to ensure smooth sliding. In order to meet the above requirements, in this embodiment, the surface of the slider 5 is coated with a self-lubricating coating, which is polytetrafluoroethylene or molybdenum disulfide material.

[0034] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug protector tail shell with double locking structure, comprising a front shell (1) and a rear shell (2), characterized in that: The front shell (1) is adapted to the rear shell (2). The front shell (1) is provided with symmetrical slide bars (5) on the upper and lower sides. The rear shell (2) is provided with slide rails (6) on the upper and lower sides. The slide bar (5) passes through the slide rail (6) and is damped and slidably connected to it. A groove is provided on one side of the slide rail (6). A limiting device for limiting the slide rail (6) and the slide bar (5) is provided in the groove. A locking device for locking the limiting device is provided on the upper side wall of the rear shell (2).

2. The plug protector tail housing with double locking structure according to claim 1, characterized in that: The limiting device includes a spring (8), a sliding block (9) and a limiting plate (10). One end of the spring (8) is connected to the side wall of the groove, and the other end is connected to the sliding block (9). The sliding block (9) is adapted to the groove and slidably connected. The limiting plate (10) is located at one end of the sliding block (9). A limiting hole (7) is provided on one side wall of the slide rail (5). The limiting plate (10) passes through the limiting hole (7) and the side wall of the slide rail (6) and is slidably connected to them. The limiting plate (10) is set with an inclined surface.

3. The plug protector tail housing with double locking structure according to claim 2, characterized in that: The locking device includes a fixed box (3), a threaded rod (13), a lifting block (12), and a locking rod (11). The fixed box (3) is on the upper side wall of the rear shell (2). The threaded rod (13) passes through the fixed box (3). The lifting block (12) is on the threaded rod (13). The threaded rod (13) passes through the lifting block (12) and is threadedly connected to it. The lifting block (12) is fitted to and slidably connected to the inner side wall of the fixed box (3). The locking rod (11) is at the lower end of the lifting block (12) and is slidably connected to the threaded rod (13). The sliding block (9) is provided with a locking hole. The locking rod (11) passes through the upper side wall of the rear shell (2) and the locking hole and is slidably connected to them.

4. The plug protector tail housing with double locking structure according to claim 3, characterized in that: The upper end of the fixed box (3) is provided with a damping turntable (4), the damping turntable (4) is damped and rotatably connected to the fixed box (3), and the threaded rod (13) is connected to the lower end of the damping turntable (4).

5. The plug protector tail housing with double locking structure according to claim 4, characterized in that: An elastic sealing ring is provided between the front shell (1) and the rear shell (2).

6. The plug protector tail housing with double locking structure according to claim 5, characterized in that: The cross-sections of the slide bar (5) and the slide rail (6) are T-shaped.

7. The plug protector tail housing with double locking structure according to claim 6, characterized in that: Both the front shell (1) and the rear shell (2) are provided with heat dissipation mesh on their side walls.

8. The plug protector tail housing with double locking structure according to claim 7, characterized in that: The surface of the slider (5) is coated with a self-lubricating coating, which is polytetrafluoroethylene or molybdenum disulfide.

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