A misplug prevention multi-core cable assembly

Abstract

The utility model belongs to multi -core cable assembly technical field, and disclose a kind of multi -core cable assembly of mistaken insertion prevention, including mutually plugged plug and socket, the outer wall of the insertion section of plug is provided with multiple lead-in blocks that are circumferentially distributed, the width of multiple lead-in blocks is different, the insertion slot inner wall of socket is provided with the lead-in groove matched with lead-in block, the end of plug and socket is connected with multi -core cable, and buffer assembly is installed on the multi -core cable, and the lead-in block of different width is set in plug insertion section, and the matched lead-in groove in socket insertion slot is matched, and the accurate physical directional constraint structure is formed, the occurrence of mistaken insertion is avoided, and the multi -core cable can be stably clamped by buffer assembly, and the cable between two fixed bases is in curved state, and the buffer effect of elastic expansion rod is matched, external force such as external vibration, pulling and the like can be effectively absorbed, and fatigue damage generated due to stress concentration of cable is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of multi-core cable assemblies, specifically a multi-core cable assembly that prevents misinsertion. Background Technology

[0002] Multi-core cable assemblies are composite cables consisting of multiple insulated conductors integrated within the same sheath. They can simultaneously transmit power, signals, or data and are widely used in scenarios with high requirements for space efficiency and system integration. The accuracy and reliability of their connections directly affect the stability and safety of equipment operation. However, existing multi-core cable assemblies have the following shortcomings:

[0003] First, the anti-misplugging performance is insufficient. Traditional components often have highly universal plug and socket structures, lacking differentiated directional constraint designs, making it easy for cable assemblies of different functions or specifications to be misplugged. Misplugging can not only lead to signal crosstalk and short circuits, but may also damage delicate electrical or signal transmission equipment, causing economic losses or even safety accidents. Second, the cable buffer protection is insufficient. In scenarios involving vibration and external pulling forces, such as industrial robot operation and rail transit operation, the connection points between multi-core cables and connectors are prone to fatigue damage due to stress concentration. Existing simple protective structures are insufficient to effectively disperse external forces and cannot provide sufficient buffer protection for the cable, thus affecting the service life of the components and the stability of signal transmission.

[0004] Therefore, a multi-core cable assembly designed to prevent misinsertion is proposed to address the aforementioned issues. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a multi-core cable assembly that prevents mis-insertion, offering advantages such as precise mis-insertion prevention, reliable connection, convenient operation, and effective buffering and protection of the cable while extending its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-core cable assembly for preventing mis-insertion, comprising a plug and a socket that are plugged into each other, wherein the outer wall of the insertion section of the plug is provided with a plurality of circumferentially distributed guide blocks, each guide block having a different width, and the inner wall of the insertion slot of the socket is provided with a guide groove that matches the guide blocks, wherein the end of the plug that is far from the socket is connected to a multi-core cable, and a buffer assembly is installed on the multi-core cable.

[0007] Preferably, both the inlet of the inlet block and the inlet of the inlet groove are provided with guide ramps.

[0008] Preferably, both the plug and the socket have anti-slip textures on their outer walls.

[0009] Preferably, the buffer assembly includes two corresponding fixed seats, and a clamping plate is connected to the top of the fixed seat by a fixing bolt. The clamping plate and the fixed seat together clamp and fix the multi-core cable. The multi-core cable between the two fixed seats is in a bent state, and an elastic telescopic rod is connected between the two fixed seats.

[0010] Preferably, the fixing seat has a threaded groove at the position corresponding to the fixing bolt, and the clamping plate has a through hole at the position corresponding to the fixing bolt, and the bolt of the fixing bolt passes through the through hole and is threaded to the threaded groove.

[0011] Preferably, the fixing base has a positioning groove that matches the multi-core cable, and the inner wall of the positioning groove is provided with a protective pad.

[0012] Preferably, the inner wall of the arc-shaped segment on the clamping plate that matches the multi-core cable is provided with equidistant anti-slip protective strips.

[0013] Preferably, the elastic telescopic rod includes a fixed tube, a movable plate is provided inside the fixed tube, a movable rod is fixedly connected to one side of the movable plate, a buffer spring is sleeved on the movable rod inside the fixed tube, the end of the movable rod away from the movable plate passes through the fixed tube, and the ends of the fixed tube away from the movable rod are respectively fixedly connected to corresponding fixed seats.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model forms a precise physical orientation constraint structure by setting guide blocks of different widths in the plug insertion section and matching guide slots in the socket insertion slot. Combined with the guide ramps at the inlet of the guide blocks and guide slots, it ensures that only perfectly matched plugs and sockets can be successfully inserted, thus avoiding misinsertion from the root and effectively preventing signal crosstalk, short circuits, and even equipment damage caused by misinsertion, greatly improving the accuracy and reliability of the connection.

[0016] 2. The two fixed seats of the buffer assembly of this utility model cooperate with the clamping plate to stably clamp the multi-core cable and make the cable between the two fixed seats bend. With the buffering effect of the elastic telescopic rod, it can effectively absorb external vibration, pulling and other external forces, disperse the stress at the connection between the cable and the connector, reduce fatigue damage caused by stress concentration in the cable, and significantly extend the service life of the cable assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the separate structure of the plug and socket of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the buffer assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the separation structure of the fixing base and the clamping piece of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the buffer component of this utility model.

[0022] In the picture:

[0023] 1. Plug;

[0024] 101. Inserted paragraph;

[0025] 2. Socket;

[0026] 201. Insertion slot;

[0027] 3. Inlet block; 4. Inlet groove; 5. Multi-core cable;

[0028] 6. Buffer components;

[0029] 601. Fixing base; 602. Fixing bolt; 603. Clamping plate;

[0030] 604, elastic telescopic rod; 6041, fixed tube; 6042, movable plate; 6043, movable rod;

[0031] 6044, buffer spring;

[0032] 605. Threaded groove; 606. Through hole; 607. Positioning groove; 608. Protective pad; 609. Anti-slip protective strip;

[0033] 7. Guide ramp; 8. Anti-slip texture. Detailed Implementation

[0034] 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.

[0035] like Figures 1 to 5As shown, this utility model provides a multi-core cable assembly for preventing mis-insertion, including a plug 1 and a socket 2 that are plugged into each other. The outer wall of the insertion section 101 of the plug 1 is provided with a plurality of circumferentially distributed guide blocks 3, each with a different width. The inner wall of the insertion slot 201 of the socket 2 is provided with a guide slot 4 that matches the guide blocks 3. By cooperating with the guide blocks 3 of different widths and the corresponding guide slots 4, accurate mis-insertion prevention can be achieved, avoiding mis-insertion of cable assemblies with different functions or specifications, preventing signal crosstalk, circuit short circuits and equipment damage, and improving the accuracy and reliability of the connection. The ends of the plug 1 and the socket 2 that are far apart are connected to a multi-core cable 5, and a buffer assembly 6 is installed on the multi-core cable 5.

[0036] Specifically, both the inlet of the inlet block 3 and the inlet of the inlet groove 4 are provided with guide ramps 7. The guide ramps 7 facilitate the insertion section 101 of the plug 1 to be smoothly inserted into the insertion groove 201 of the socket 2, thereby improving the smoothness of the insertion and removal operation.

[0037] Furthermore, both the plug 1 and the socket 2 are provided with anti-slip textures 8 on their outer walls. The anti-slip textures 8 can increase the friction during insertion and removal, making it easier for operators to operate and preventing slippage, thus further ensuring the convenience and accuracy of the insertion and removal process.

[0038] Furthermore, the buffer assembly 6 includes two corresponding fixed seats 601. The top of the fixed seats 601 is connected to a clamping piece 603 by a fixing bolt 602. The clamping piece 603 and the fixed seats 601 together clamp and fix the multi-core cable 5. The multi-core cable 5 between the two fixed seats 601 is in a bent state. An elastic telescopic rod 604 is connected between the two fixed seats 601. Through the cooperation of the bent multi-core cable 5 and the elastic telescopic rod 604, external vibration, pulling and other external forces can be effectively buffered, the stress of the connection between the multi-core cable 5 and the plug 1 and socket 2 can be dispersed, the cable fatigue damage can be reduced, and the service life of the assembly can be extended.

[0039] It is worth noting that a threaded groove 605 is provided on the fixing base 601 at the position corresponding to the fixing bolt 602, and a through hole 606 is provided on the clamping plate 603 at the position corresponding to the fixing bolt 602. The screw of the fixing bolt 602 passes through the through hole 606 and is threaded to the threaded groove 605. This connection method can achieve a stable connection between the fixing base 601 and the clamping plate 603, ensuring a reliable clamping and fixing effect on the multi-core cable 5 and preventing the cable from loosening.

[0040] It is worth noting that the fixing base 601 is provided with a positioning groove 607 that matches the multi-core cable 5. The inner wall of the positioning groove 607 is provided with a protective pad 608. The positioning groove 607 can accurately position the multi-core cable 5 to ensure accurate clamping position. The protective pad 608 can prevent the outer sheath of the multi-core cable 5 from being scratched and play a role in protecting the cable.

[0041] It is worth mentioning that the inner wall of the arc-shaped section on the clamping plate 603, which matches the multi-core cable 5, is provided with anti-slip protective strips 609 arranged at equal intervals. The anti-slip protective strips 609 can increase the friction during clamping, prevent the multi-core cable 5 from sliding between the fixing base 601 and the clamping plate 603, improve the fixing stability, and also help protect the cable and reduce the damage to the cable caused by clamping.

[0042] It is worth emphasizing that the elastic telescopic rod 604 includes a fixed tube 6041, a movable plate 6042 is provided inside the fixed tube 6041, a movable rod 6043 is fixedly connected to one side of the movable plate 6042, a buffer spring 6044 is sleeved on the movable rod 6043 inside the fixed tube 6041, the end of the movable rod 6043 away from the movable plate 6042 passes through the fixed tube 6041, and the ends of the fixed tube 6041 and the movable rod 6043 away from each other are respectively fixedly connected to the corresponding fixed seats 601. By utilizing the elastic deformation of the buffer spring 6044, vibration and tensile force can be effectively absorbed, providing a good buffering effect for the multi-core cable 5, and ensuring the stability of the component under complex vibration conditions such as industrial robot operation and rail transit operation.

[0043] Working principle and process: The insertion section 101 of plug 1 has circumferentially distributed guide blocks 3 of varying widths on its outer wall. These guide blocks must correspond to the matching guide grooves 4 on the inner wall of the insertion slot 201 of socket 2. With the assistance of the guide ramps 7 at the inlet of the guide blocks 3 and guide grooves 4, only fully compatible plugs 1 and sockets 2 can be successfully inserted, thus achieving precise anti-misinsertion and avoiding signal crosstalk, short circuits, or equipment damage caused by misinsertion. At the same time, the buffer assembly 6 cooperates with the clamping plate 603 through two fixing seats 601. The positioning groove 607 of the fixing seat 601, the inner wall protective pad 608, and the anti-slip protective strip 609 of the arc-shaped section of the clamping plate 603 are used to achieve precise anti-misinsertion and avoid signal crosstalk, short circuits, or equipment damage caused by misinsertion. The multi-core cable 5 is precisely positioned and clamped for protection, causing the multi-core cable 5 between the two fixed seats 601 to be in a bent state. When the multi-core cable 5 is subjected to vibration or tensile force, the elastic telescopic rod 604 between the two fixed seats 601 plays a role. The movable plate 6042 inside the fixed tube 6041 drives the movable rod 6043 to move, compressing or stretching the buffer spring 6044 sleeved on the movable rod 6043. The elastic deformation of the buffer spring 6044 absorbs the external force and effectively disperses the stress at the connection points between the multi-core cable 5 and the plug 1 and socket 2, thereby achieving buffer protection for the multi-core cable 5 and ensuring stable operation of the component under complex working conditions.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] 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 multi-core cable assembly for preventing mis-insertion, comprising a plug (1) and a socket (2) that are interlocked, characterized in that: The outer wall of the insertion section (101) of the plug (1) is provided with a plurality of circumferentially distributed guide blocks (3), each of which has a different width. The inner wall of the insertion slot (201) of the socket (2) is provided with a guide slot (4) that matches the guide blocks (3). The end of the plug (1) that is far from the socket (2) is connected to a multi-core cable (5), and a buffer assembly (6) is installed on the multi-core cable (5).

2. The multi-core cable assembly for preventing misinsertion according to claim 1, characterized in that: The inlet of both the inlet block (3) and the inlet groove (4) is provided with a guide ramp (7).

3. A multi-core cable assembly for preventing misinsertion according to claim 1, characterized in that: The outer walls of both the plug (1) and the socket (2) are provided with anti-slip textures (8).

4. A multi-core cable assembly for preventing misinsertion according to claim 1, characterized in that: The buffer assembly (6) includes two corresponding fixed seats (601). The top of the fixed seat (601) is connected to a clamping piece (603) by a fixing bolt (602). The clamping piece (603) and the fixed seat (601) together clamp and fix the multi-core cable (5). The multi-core cable (5) between the two fixed seats (601) is in a bent state. An elastic telescopic rod (604) is connected between the two fixed seats (601).

5. A multi-core cable assembly for preventing misinsertion according to claim 4, characterized in that: The fixing base (601) has a threaded groove (605) at the position corresponding to the fixing bolt (602), and the clamping plate (603) has a through hole (606) at the position corresponding to the fixing bolt (602). The screw of the fixing bolt (602) passes through the through hole (606) and is threaded to the threaded groove (605).

6. A multi-core cable assembly for preventing misinsertion according to claim 4, characterized in that: The fixing base (601) is provided with a positioning groove (607) that matches the multi-core cable (5), and a protective pad (608) is provided on the inner wall of the positioning groove (607).

7. A multi-core cable assembly for preventing misinsertion according to claim 4, characterized in that: The inner wall of the arc-shaped segment on the clamping plate (603) that matches the multi-core cable (5) is provided with anti-slip protective strips (609) arranged at equal intervals.

8. A multi-core cable assembly for preventing misinsertion according to claim 4, characterized in that: The elastic telescopic rod (604) includes a fixed tube (6041), a movable plate (6042) is provided inside the fixed tube (6041), a movable rod (6043) is fixedly connected to one side of the movable plate (6042), a buffer spring (6044) is sleeved on the movable rod (6043) inside the fixed tube (6041), the end of the movable rod (6043) away from the movable plate (6042) passes through the fixed tube (6041), and the ends of the fixed tube (6041) away from the movable rod (6043) are respectively fixedly connected to corresponding fixed seats (601).

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