Connecting device for wire harness plug-in detection

Abstract

The utility model discloses a connecting device for wire harness plug-in detection, which relates to a wire harness connecting device and comprises a seat body. One side of the seat body is provided with a plug-in cavity for plugging a wire harness plug-in, and an accommodating cavity is arranged above the plug-in cavity, so that the wire harness plug-in plugged in the plug-in cavity is positioned in the accommodating cavity, and the end surface of the wire harness plug-in is flush with the end surface of the seat body; a lock catch is arranged on one side of the seat body, a plurality of mounting holes in one-to-one correspondence with contact pins of the wire harness plug-in are formed in the plug-in cavity, the mounting holes penetrate through the seat body, pin sleeves are mounted in the mounting holes, ejector pins are elastically mounted in the pin sleeves, and the end faces of the ends, away from the plug-in cavity, of the ejector pins are flush with the end face of the seat body; the tail end of the ejector pin is provided with a connecting line connected with the input end of detection equipment. According to the utility model, the problem of reverse installation of the wire harness is avoided, the problems of poor contact and looseness at the joint caused by manual misoperation in the prior art are solved, and the reliability of wire harness detection is improved.

Description

Technical Field

[0001] The utility model relates to a wire harness connection device, and more specifically, to a connection device for detecting wire harness plugs. Background Art

[0002] After the wire harness on the vehicle is produced and then detected, it can be packaged and shipped out. When detecting the wire harness, it needs to be connected to the corresponding detection equipment. Generally, the plug of the wire harness is inserted into the input end of the detection equipment, and then the detection equipment is started to detect the functionality of the wire harness for continuity. However, there is a one-to-one correspondence between the wires in the wire harness and the needle sleeves on the input end of the detection equipment, and currently only the first needle sleeve on the input end of the detection equipment is marked, resulting in frequent problems of incorrect insertion directions during the operation. Although this will not damage the wire harness, its operation does not conform to the standard. In addition, such a connection method is prone to problems such as poor contact and loosening at the connection due to external factors, such as accidental touch and pulling by the staff, which affects the judgment of whether the functionality detection of the wire harness is normal. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a connection device for detecting wire harness plugs, which avoids the problem of incorrect installation of the wire harness and improves the reliability of wire harness detection.

[0004] A connection device for detecting wire harness plugs according to the utility model includes a seat body; a plug cavity for inserting the wire harness plug is provided on one side of the seat body, and a receiving cavity is provided above the plug cavity so that the wire harness plug inserted into the plug cavity is located in the receiving cavity and the end face of the wire harness plug is flush with the end face of the seat body; a lock is provided on one side of the seat body, a plurality of mounting holes corresponding to the pins of the wire harness plug are provided in the plug cavity, and the mounting holes penetrate the seat body. A needle sleeve is installed in the mounting hole, a thimble is elastically installed in the needle sleeve, the end face of the thimble away from the plug cavity is flush with the end face of the seat body, and a connecting wire connected to the input end of the detection equipment is installed at the end of the thimble.

[0005] Preferably, an identification groove is provided at the corner of the end face of the seat body.

[0006] Preferably, mounting ears are provided on both sides of the seat body, and stepped through holes are provided in the mounting ears.

[0007] Preferably, the mounting ears and the seat body are of an integral structure.

[0008] Preferably, an installation cavity is provided on the periphery of the end of the needle sleeve away from the plug-in cavity. At least two notch grooves are provided at the end of the needle sleeve. A stop rod corresponding to the notch groove is fixedly installed on the outer wall of the ejector pin, and the stop rod extends into the installation cavity. A spring is provided in the installation cavity. The stop rod is located above the spring. The spring is sleeved on the end of the needle sleeve. A limit ring is installed at the port of the installation cavity.

[0009] Preferably, the buckle includes an inverted L-shaped positioning seat and a locking piece. The inverted L-shaped positioning seat is installed on one side of the plug-in cavity through a locking bolt. A positioning rod is fixedly installed at the end of the inverted L-shaped positioning seat. A positioning groove is provided on the seat body. One end of the positioning rod away from the inverted L-shaped positioning seat is movably inserted into the positioning groove. A locking piece is rotatably installed in the positioning rod. The thickness of the locking piece is greater than the distance between the seat body and the bottom surface of the inverted L-shaped positioning seat.

[0010] Advantageous Effects

[0011] The advantages of the present utility model are as follows: An accommodation cavity is provided above the plug-in cavity to accommodate the upper part of the wire harness plug, so that it can be adapted to the positioning part on the wire harness plug, thus avoiding the problem of incorrect installation of the wire harness. A buckle is provided on one side of the seat body. The wire harness plug in the plug-in cavity is locked by the buckle, solving the problems of poor contact and looseness at the connection caused by human misoperation in the prior art, and improving the reliability of wire harness detection. Description of the Drawings

[0012] Figure 1 is a three-dimensional structural schematic diagram of the wire harness plug connection device of the present utility model;

[0013] Figure 2 Based on Figure 1 is a three-dimensional structural schematic diagram of the wire harness plug connection device with the locking piece hidden in

[0014] Figure 3 is a front view structural schematic diagram of the seat body of the present utility model;

[0015] Figure 4 is Figure 3 the sectional structural schematic diagram at B-B in

[0016] Wherein: 1-seat body, 2-mounting ear, 3-step through hole, 4-identification groove, 5-plug-in cavity, 6-accommodation cavity, 7-inverted L-shaped positioning seat, 8-locking bolt, 9-locking piece, 10-mounting hole, 11-positioning groove, 12-positioning rod, 13-needle sleeve, 14-ejector pin, 15-stop rod, 16-installation cavity, 17-spring, 18-limit ring, 19-notch groove. Detailed Embodiments

[0017] The following will further describe the present utility model in conjunction with embodiments, but it does not constitute any limitation to the present utility model. Any person's limited modifications within the scope of the claims of the present utility model are still within the scope of the claims of the present utility model.

[0018] Referring to Figures 1-4 , a connection device for harness plug detection of the present utility model includes a base body 1. A plug-in cavity 5 for plugging in a harness plug is provided on one side of the base body 1. An accommodating cavity 6 is provided above the plug-in cavity 5, so that the harness plug inserted in the plug-in cavity 5 is located in the accommodating cavity 6 and the end face of the harness plug is flush with the end face of the base body 1, which is beneficial to the subsequent locking of the harness plug. Moreover, since there are positioning parts at the upper ends of the harness plugs to avoid the phenomenon of incorrect installation during subsequent installation, an accommodating cavity 6 is provided above the plug-in cavity 5 to accommodate the upper part of the harness plug, so that it can be adapted to the positioning parts on the harness plugs, thus avoiding the problem of incorrect harness installation. A lock is provided on one side of the base body 1. In this way, the harness plug in the plug-in cavity 5 can be locked by the lock, solving the problems of poor contact and looseness at the connection caused by human misoperation in the prior art, and improving the reliability of harness detection.

[0019] Among them, the lock includes an inverted L-shaped positioning seat 7 and a locking piece 9. The inverted L-shaped positioning seat 7 is installed on one side of the plug-in cavity 5 through a locking bolt 8. A positioning rod 12 is fixedly installed at the end of the inverted L-shaped positioning seat 7. A positioning groove 11 is provided on the base body 1. The end of the positioning rod 12 away from the inverted L-shaped positioning seat 7 is movably inserted into the positioning groove 11. A locking piece 9 is rotatably installed in the positioning rod 12. The thickness of the locking piece 9 is greater than the distance between the base body 1 and the bottom surface of the inverted L-shaped positioning seat 7. The tightness of the rotation of the locking piece 9 can be adjusted through the locking bolt 8, which is beneficial to the locking of the harness plug.

[0020] A plurality of installation holes 10 corresponding to the pins of the harness plug one by one are provided in the plug-in cavity 5, and the installation holes 10 penetrate through the base body 1. A needle sleeve 13 is installed in the installation holes 10. A thimble 14 is elastically installed in the needle sleeve 13. The end face of the thimble 14 away from the plug-in cavity 5 is flush with the end face of the base body 1. A connecting wire connected to the input end of the detection device is installed at the end of the thimble 14. After the harness plug is inserted into the plug-in cavity 5, the pin rows on the end of the harness plug will be inserted into the needle sleeve 13 and contact the needle sleeve 13. In addition, considering the firmness of the installation of the pin rows on the end of the harness plug, a thimble 14 is elastically arranged in the needle sleeve 13, so that the pin rows contact the thimble 14 during the process of inserting into the needle sleeve 13 and push the thimble 14 to move out of the base body 1. Whether the installation of the pin rows is firm can be judged by visually observing the length of the part of the thimble 14 outside the base body 1. For example, when the length of the part of a certain thimble 14 outside the base body 1 is less than that of other thimbles 14, it can be judged that there is an installation defect in the pin row corresponding to the thimble 14.

[0021] An installation cavity 16 is provided on the periphery of one end of the needle sleeve 13 away from the plug-in cavity 5. At least two notch grooves 19 are formed at the end of the needle sleeve 13. A stop rod 15 fixedly connected to the notch grooves 19 in a one-to-one correspondence is provided on the outer wall of the ejector pin 14, and the stop rod 15 extends into the installation cavity 16. A spring 17 is provided in the installation cavity 16. The stop rod 15 is located above the spring 17. The spring 17 is sleeved on the end of the needle sleeve 13. A limit ring 18 is installed at the port of the installation cavity 16, realizing the elastic installation of the ejector pin 14.

[0022] In this embodiment, an identification groove 4 is formed at the end corner of the base body 1 for quickly identifying the position of the first needle sleeve 13 on the base body 1.

[0023] In this embodiment, mounting ears 2 are provided on both sides of the base body 1. A stepped through hole 3 is formed in the mounting ear 2 for mounting and fixing the connecting device. The mounting ear 2 and the base body 1 are of an integral structure, so that the mounting ear 2 and the base body 1 can be manufactured by 3D printing / integral casting, which is more convenient.

[0024] The working principle of the present utility model is as follows: during use, after confirming that the connecting wire at the end of the ejector pin 14 is correctly connected to the input end of the detection device, the wire harness plug is inserted into the plug-in cavity 5, and then the locking piece 9 is rotated to lock the wire harness plug through the locking piece 9. Then the detection device can be started.

[0025] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, which will not affect the implementation effect of the present utility model and the practicability of the patent.

Claims

1. A connecting device for harness plug detection, characterized in that It includes a seat body (1); on one side of the seat body (1), there is a plug-in cavity (5) for inserting a wire harness plug-in. Above the plug-in cavity (5), there is a receiving cavity (6) such that the wire harness plug-in inserted in the plug-in cavity (5) is located in the receiving cavity (6) and the end face of the wire harness plug-in is flush with the end face of the seat body (1); on one side of the seat body (1), there is a lock. In the plug-in cavity (5), there are a plurality of mounting holes (10) corresponding one by one to the pins of the wire harness plug-in, and the mounting holes (10) penetrate through the seat body (1). A needle sleeve (13) is installed in the mounting holes (10). A thimble (14) is elastically installed in the needle sleeve (13). The end face of the end of the thimble (14) away from the plug-in cavity (5) is flush with the end face of the seat body (1). A connecting wire connected to the input end of the detection device is installed at the end of the thimble (14).

2. The connecting device for harness plug detection according to claim 1, wherein, At the end corner of the seat body (1), there is an identification groove (4).

3. The connecting device for harness plug detection according to claim 1, characterized in that, On both sides of the seat body (1), there are mounting ears (2), and stepped through holes (3) are provided in the mounting ears (2).

4. A connecting device for harness plug detection according to claim 3, characterized in that, The mounting ear (2) and the seat body (1) are of an integral structure.

5. The connecting device for harness plug detection according to claim 1, characterized in that, On the periphery of the end of the needle sleeve (13) away from the plug-in cavity (5), there is a mounting cavity (16). At least two notch grooves (19) are provided at the end of the needle sleeve (13). On the outer wall of the thimble (14), there are blocking rods (15) inserted correspondingly one by one with the notch grooves (19), and the blocking rods (15) extend into the mounting cavity (16). A spring (17) is provided in the mounting cavity (16). The blocking rods (15) are located above the spring (17). The spring (17) is sleeved on the end of the needle sleeve (13). A limiting ring (18) is installed at the port of the mounting cavity (16).

6. The connection device for harness plug detection according to claim 1, characterized in that The lock includes an inverted L-shaped positioning seat (7) and a locking piece (9). The inverted L-shaped positioning seat (7) is installed on one side of the plug-in cavity (5) through a locking bolt (8). A positioning rod (12) is fixedly installed at the end of the inverted L-shaped positioning seat (7). A positioning groove (11) is provided on the seat body (1). The end of the positioning rod (12) away from the inverted L-shaped positioning seat (7) is movably inserted into the positioning groove (11). A locking piece (9) is rotatably installed in the positioning rod (12). The thickness of the locking piece (9) is greater than the distance between the seat body (1) and the bottom surface of the inverted L-shaped positioning seat (7).

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