A mistaken insertion prevention multi-core wire harness plug
Patent Information
- Application Number
- CN202521787228.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-08-21
AI Technical Summary
[0003]现有技术虽然通过将多个电线集成到一个插头中简化设备连接，但是多芯线束插头在连接时容易出现误插的问题，从而导致线路连接错误，对设备造成损坏，因此，本领域技术人员提供了一种防误插的多芯线束插头，以解决上述背景技术中提出的问题
本实用新型中，通过设置连接装置，将限位套筒中的端子插入插接座中的插孔中，利用插接座两侧的卡块分别与限位套筒内壁的卡槽配合，可以将端子插入对应的插孔中，并且插接座两侧的卡块，分别与不同规格的卡块结构，使得限位套筒只能通过一个方向插入插接座中，从而防止插头误差，有效地提高连接的安全性。
Smart Images
Figure CN224804366U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wire harness plug technology, specifically relating to a multi-core wire harness plug that prevents misinsertion. Background Technology
[0002] With the continuous development of electronic equipment and the automotive industry, especially with the increasing demand for intelligence and automation, the functions and complexity of wire harnesses are increasing. Multi-core wire harness plugs have emerged to address this need, simplifying device connections and reducing space requirements by integrating multiple wires, signal lines, etc., into a single plug.
[0003] While existing technologies simplify device connections by integrating multiple wires into a single plug, multi-core wire harness plugs are prone to mis-insertion during connection, leading to incorrect wiring and damage to the equipment. Therefore, those skilled in the art have provided a multi-core wire harness plug that prevents mis-insertion to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this utility model is to provide a multi-core wire harness plug with a simple structure and reasonable design to prevent misinsertion in order to solve the above problems.
[0005] This utility model achieves the above objectives through the following technical solutions: A multi-core wire harness plug designed to prevent mis-insertion includes a first fixing sleeve, a fixing device at the front end of the first fixing sleeve, a first wire harness fixedly connected to the inner wall of the first fixing sleeve, a second fixing sleeve at the front end of the fixing device, a second wire harness fixedly connected to the inner wall of the second fixing sleeve, a connecting device that mates with the front end of the second fixing sleeve inside the fixing device, and a limiting groove formed on the side wall of the second fixing sleeve.
[0006] As a further optimization of this utility model, the fixing device includes a sleeve fixedly connected to the front end of the first fixing sleeve. The side wall of the sleeve has a plurality of through holes arranged in a circumferential array. The inner walls of the plurality of through holes are movably connected with ball bearings that cooperate with the inner wall of the limiting groove. A second limiting ring is fixedly connected to the front side of the side wall of the sleeve, and a first limiting ring is fixedly connected to the rear side of the side wall of the sleeve. A limiting mechanism is slidably provided on the side wall of the sleeve.
[0007] As a further optimization of this utility model, the limiting mechanism includes a limiting ring that is slidably connected to the side wall of the sleeve, a collar is fixedly connected to the side wall of the limiting ring, and a spring is provided on the inner wall of the collar.
[0008] As a further optimization of this utility model, the connecting device includes a plug-in base fixedly connected to the middle of the front end of the first fixed sleeve, the front end of the first wire harness passing through the inner wall of the first fixed sleeve and electrically connected to the plug-in base, the front end of the plug-in base having a plurality of insertion holes, the two sides of the plug-in base being fixedly connected to locking blocks respectively, and the side wall of the plug-in base being provided with a mating mechanism.
[0009] As a further optimization of this utility model, the mating mechanism includes a limiting sleeve fixedly connected to the front end of the second fixed sleeve. The inner wall of the limiting sleeve is provided with several terminals. The second wire harness passes through the second fixed sleeve and is electrically connected to the several terminals. The inner walls of the limiting sleeve are respectively provided with slots.
[0010] As a further optimization of this utility model, the two card slots are respectively adapted to the two card blocks, and the several terminals are adapted to the inner walls of several sockets.
[0011] The beneficial effects of this utility model are as follows: In this invention, by setting a connecting device, the terminal in the limiting sleeve is inserted into the socket in the plug socket. The locking blocks on both sides of the plug socket cooperate with the locking grooves on the inner wall of the limiting sleeve, so that the terminal can be inserted into the corresponding socket. Furthermore, the locking blocks on both sides of the plug socket are of different specifications, so that the limiting sleeve can only be inserted into the plug socket in one direction, thereby preventing plug errors and effectively improving the safety of the connection.
[0012] In this invention, by setting a fixing device, during the cable insertion process, the collar is pushed backward, causing the limiting ring to move backward and disengage from the limiting of the ball bearing. This allows the limiting sleeve at the front end of the second fixing sleeve to be inserted into the sleeve. At this time, the collar is released, and under the elastic force of the spring, the collar returns to its original position. The limiting ring then inserts the ball bearing into the limiting groove at the front end of the second fixing sleeve, thereby fixing the connector and preventing the connector from loosening during connection, effectively improving stability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is an exploded cross-sectional view of the present invention; Figure 5 This is a schematic diagram of the overall structure of the connecting device of this utility model.
[0014] In the diagram: 1. Fixing device; 101. Collar; 102. First limiting ring; 103. Through hole; 104. Second limiting ring; 105. Spring; 106. Limiting ring; 107. Sleeve; 108. Ball bearing; 2. Connecting device; 201. Slot; 202. Limiting sleeve; 203. Terminal; 204. Locking block; 205. Plug-in socket; 206. Plug-in hole; 3. First fixing sleeve; 4. First wire harness; 5. Limiting groove; 6. Second fixing sleeve; 7. Second wire harness. Detailed Implementation
[0015] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content. Example
[0016] like Figure 1 , Figure 2 As shown, a multi-core wire harness plug designed to prevent mis-insertion includes a first fixing sleeve 3. A fixing device 1 is provided at the front end of the first fixing sleeve 3. The fixing device 1 can be used to further fix the plug after it is connected to improve stability. A first wire harness 4 is fixedly connected to the inner wall of the first fixing sleeve 3. A second fixing sleeve 6 is provided at the front end of the fixing device 1. A second wire harness 7 is fixedly connected to the inner wall of the second fixing sleeve 6. A connecting device 2 that cooperates with the front end of the second fixing sleeve 6 is provided inside the fixing device 1. The connecting device 2 is used to make the corresponding limiting sleeve 202 cooperate with the socket 206 to make the circuit connected. A limiting groove 5 is opened on the side wall of the second fixing sleeve 6. The inner walls of the limiting groove 5 are inclined on both sides to facilitate the ball bearing 108 to slide in and out of the limiting groove 5.
[0017] like Figure 3 , Figure 4As shown, a sleeve 107 is fixedly connected to the front end of the first fixed sleeve 3. The sleeve 107 has several through holes 103 arranged in a circumferential array on its side wall. A ball bearing 108, which mates with the inner wall of the limiting groove 5, is movably connected to the inner wall of each through hole 103. The inner wall of the through hole 103 mates with the ball bearing 108, and the diameter of the through hole 103 near the inner wall of the sleeve 107 is smaller than the diameter of the ball bearing 108, effectively preventing the ball bearing 108 from falling out of the through hole 103. A second limiting ring 104 is fixedly connected to the front side of the sleeve 107, and a second limiting ring 104 is fixedly connected to the rear side of the sleeve 107. With the first limiting ring 102 attached, during cable insertion, the collar 101 is pushed backward, causing the limiting ring 106 to move backward and disengage from the limiting of the ball 108. This allows the limiting sleeve 202 at the front end of the second fixing sleeve 6 to be inserted into the sleeve 107. At this time, the collar 101 is released, and under the elastic force of the spring 105, the collar 101 returns to its original position. The limiting ring 106 then inserts the ball 108 into the limiting groove 5 at the front end of the second fixing sleeve 6, thereby fixing the connector and preventing it from loosening during connection, effectively improving stability.
[0018] like Figure 3 , Figure 4 As shown, a limiting ring 106 is slidably connected to the side wall of the sleeve 107, and a collar 101 is fixedly connected to the side wall of the limiting ring 106. A spring 105 is provided on the inner wall of the collar 101. The front end of the limiting ring 106 has an inclined structure. After the second fixed sleeve 6 is inserted into the sleeve 107, the ball 108 is pushed back to its original position by the limiting ring 106 under the action of the spring 105, thereby limiting the second fixed sleeve 6 by the ball 108.
[0019] like Figure 3 , Figure 4 and Figure 5 As shown, a plug-in socket 205 is fixedly connected to the middle of the front end of the first fixed sleeve 3. The front end of the first wire harness 4 passes through the inner wall of the first fixed sleeve 3 and is electrically connected to the plug-in socket 205. The front end of the plug-in socket 205 has several insertion holes 206. A locking block 204 is fixedly connected to both sides of the plug-in socket 205. The locking blocks 204 on both sides of the plug-in socket 205 are strip structures with different cross sections. The two slots 201 in the limiting sleeve 202 cooperate with the locking blocks 204 respectively, so that the plug-in socket 205 can only be inserted into the limiting sleeve 202 in a fixed direction to avoid changes in direction and incorrect wiring connection.
[0020] like Figure 3 , Figure 4 and Figure 5As shown, a limiting sleeve 202 is fixedly connected to the front end of the second fixed sleeve 6. Several terminals 203 are provided on the inner wall of the limiting sleeve 202. The second wire harness 7 passes through the second fixed sleeve 6 and is electrically connected to the several terminals 203. The two sides of the inner wall of the limiting sleeve 202 are respectively provided with slots 201. The two slots 201 are respectively adapted to two locking blocks 204. The several terminals 203 are adapted to the inner walls of several sockets 206. When the terminals 203 in the limiting sleeve 202 are inserted into the sockets 206 in the plug socket 205, the locking blocks 204 on both sides of the plug socket 205 cooperate with the slots 201 on the inner wall of the limiting sleeve 202, so that the terminals 203 can be inserted into the corresponding sockets 206. The locking blocks 204 on both sides of the plug socket 205 are respectively connected to locking block structures of different specifications, so that the limiting sleeve 202 can only be inserted into the plug socket 205 in one direction, thereby preventing plug errors and effectively improving the safety of the connection.
[0021] It should be noted that, in use, this type of multi-core wire harness plug designed to prevent mis-insertion involves inserting the terminal 203 from the limiting sleeve 202 into the socket 206 of the connector 205. The locking blocks 204 on both sides of the connector 205 engage with the slots 201 on the inner wall of the limiting sleeve 202, allowing the terminal 203 to be inserted into the corresponding socket 206. Furthermore, the locking blocks 204 on both sides of the connector 205, with their different sizes of locking structures, ensure that the limiting sleeve 202 can only allow one insertion at a time. Insert the cable into the connector 205 in one direction. During cable insertion, push the collar 101 backward to move the limiting ring 106 backward, disengaging it from the limiting of the ball 108. This allows the limiting sleeve 202 at the front end of the second fixing sleeve 6 to be inserted into the sleeve 107. At this point, release the collar 101. Under the elastic force of the spring 105, the collar 101 returns to its original position, and the limiting ring 106 inserts the ball 108 into the limiting groove 5 at the front end of the second fixing sleeve 6, thereby fixing the connector.
[0022] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A multi-core wire harness plug designed to prevent mis-insertion, comprising a first fixing sleeve (3), characterized in that, The first fixing sleeve (3) is provided with a fixing device (1) at its front end, and a first wire harness (4) is fixedly connected to the inner wall of the first fixing sleeve (3). The fixing device (1) is provided with a second fixing sleeve (6) at its front end, and a second wire harness (7) is fixedly connected to the inner wall of the second fixing sleeve (6). The fixing device (1) is provided with a connecting device (2) that cooperates with the front end of the second fixing sleeve (6). The second fixing sleeve (6) has a limit groove (5) on its side wall. The fixing device (1) includes a sleeve (107) fixedly connected to the front end of the first fixing sleeve (3). The side wall of the sleeve (107) has a plurality of through holes (103) arranged in a circumferential array. The inner wall of the plurality of through holes (103) is movably connected to a ball (108) that cooperates with the inner wall of the limiting groove (5). A second limiting ring (104) is fixedly connected to the front side of the side wall of the sleeve (107). A first limiting ring (102) is fixedly connected to the rear side of the side wall of the sleeve (107). A limiting mechanism is slidably provided on the side wall of the sleeve (107).
2. The multi-core wire harness plug for preventing misinsertion according to claim 1, characterized in that: The limiting mechanism includes a limiting ring (106) that is slidably connected to the side wall of the sleeve (107). A collar (101) is fixedly connected to the side wall of the limiting ring (106), and a spring (105) is provided on the inner wall of the collar (101).
3. A multi-core wire harness plug for preventing misinsertion according to claim 1, characterized in that: The connecting device (2) includes a plug-in seat (205) fixedly connected to the middle of the front end of the first fixed sleeve (3). The front end of the first wire harness (4) passes through the inner wall of the first fixed sleeve (3) and is electrically connected to the plug-in seat (205). The front end of the plug-in seat (205) is provided with several plug holes (206). The plug-in seat (205) is fixedly connected to two sides of each side with a locking block (204). The side wall of the plug-in seat (205) is provided with a mating mechanism.
4. A multi-core wire harness plug for preventing mis-insertion according to claim 3, characterized in that: The mating mechanism includes a limiting sleeve (202) fixedly connected to the front end of the second fixed sleeve (6). The inner wall of the limiting sleeve (202) is provided with a number of terminals (203). The second wire harness (7) passes through the second fixed sleeve (6) and is electrically connected to the number of terminals (203). The inner walls of the limiting sleeve (202) are respectively provided with slots (201).
5. A multi-core wire harness plug for preventing misinsertion according to claim 4, characterized in that: The two slots (201) are respectively adapted to the two blocks (204), and the terminals (203) are adapted to the inner walls of the several holes (206).