Wire harness connecting device capable of being quickly plugged and unplugged

Abstract

The utility model discloses a wire harness connecting device capable of being quickly plugged and unplugged, relates to the technical field of wire harness connection, and aims to solve the problems in the prior art that the connection ends and the plugging ends of two wire harnesses are connected only through a buckle and a clamping block and are unstable, and when an external force touches the buckle, the buckle is easily separated from the clamping block, so that the wire harnesses are disconnected. A telescopic groove is formed in the upper end of the middle of the interior of the inserting end, a movable rod is arranged in the telescopic groove, a limiting ring is fixedly connected to the position, at the front end of the telescopic groove, of the outer wall of the movable rod, a spring is arranged at the position, at the rear end of the limiting ring, of the exterior of the movable rod, and a connecting end is connected to the front end of the inserting end; the rear end of the outer wall of the connecting end is fixedly connected with a jacking ring, the exterior of the jacking ring is rotationally connected with a rotating pipe, the mechanical locking design of the movable rod and the circular limiting groove is adopted, accidental loosening caused by external force collision is effectively prevented, and the connecting stability is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness connection technology, specifically to a wire harness connection device that can be quickly plugged in and unplugged. Background Technology

[0002] A wire harness is an integrated assembly that bundles multiple wires or cables together according to specific routing, function, and manufacturing requirements. It is widely used in the automotive, home appliance, and aerospace industries. Its core function is to provide efficient and safe power transmission and signal transmission for electrical systems, while simplifying assembly processes and improving reliability. A wire harness typically consists of conductors (copper or aluminum), insulation layers, connectors (plugs, terminals), protective sleeves (corrugated tubing, tape), and fasteners (cable ties, brackets). Standardized design ensures precise connection with equipment, and a connecting device is required to connect two wire harnesses.

[0003] For example, patent announcement number CN218677753U discloses an electronic wire harness that facilitates quick insertion and removal. The harness includes a wire harness body, a filler rope fixedly installed on the outer wall of the wire harness body, an outer insulating sleeve fixedly installed on the outer wall of the filler rope, protective sleeves fixedly installed at both ends of the wire harness body, heat-shrink sleeves fixedly installed on the outer wall of the protective sleeves, a connecting end fixedly installed on the outer wall of one end of the wire harness body, and a plug-in end fixedly installed on the outer wall of the other end of the wire harness body. This electronic wire harness, facilitating quick insertion and removal, uses filler ropes to fill the outside of the wire harness body, separating the wire harness components, and outer insulating sleeves to protect the outside. The protective sleeves, along with the plug-in end and the connection point of the connecting end, reinforce and protect the wire harness body. This makes the connection point between the plug-in end and the wire harness less prone to breakage, providing good protection for the connection point and extending its service life.

[0004] However, in the above technology, the connection end and plug end of the two wire harnesses are only fixed by clips and blocks. However, the connection of clips and blocks is not stable. When external force hits the clip, it is easy to separate it from the block, causing the wire harness to disconnect. Therefore, the market urgently needs to develop a wire harness connection device that can be quickly plugged in and out to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-pluggable wire harness connection device to solve the problem mentioned in the background art where the connection end and plug-in end of two wire harnesses are only fixed by buckles and blocks, but the connection of buckles and blocks is not stable. When external force hits the buckle, it is easy to separate it from the block, resulting in the wire harness disconnection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-pluggable wire harness connection device, comprising a plug-in end and a connecting end, wherein a rectangular plug portion is fixedly connected to the middle of the front end of the plug-in end, a first wire harness is fixedly connected to the middle of the rear end of the plug-in end, a telescopic groove is provided at the upper middle part of the inner part of the plug-in end, a movable rod is provided inside the telescopic groove, a limit ring is fixedly connected to the outer wall of the movable rod at the front end of the telescopic groove, a spring is provided outside the movable rod at the rear end of the limit ring, a connecting end is connected to the front end of the plug-in end, a rectangular slot is provided in the middle of the rear end face of the connecting end, a second wire harness is fixedly connected to the middle of the front end of the connecting end, a tightening ring is fixedly connected to the rear end of the outer wall of the connecting end, and a rotating tube is rotatably connected to the outside of the tightening ring.

[0007] Preferably, conductive copper tubes are provided on both sides of the center of the rectangular plug-in portion, and first wire harness cores are provided on both sides of the center of the first wire harness. The front ends of the two first wire harness cores are inserted into the plug-in end and electrically connected to the rear ends of the two conductive copper tubes respectively.

[0008] Preferably, conductive posts are provided on both sides of the center of the rectangular slot, and the front end of the conductive posts is fixedly connected to the front end face of the rectangular slot. Second wire harness cores are provided on both sides of the center of the second wire harness, and the rear ends of the two second wire harness cores are inserted into the connection end and electrically connected to the front ends of the two conductive posts respectively.

[0009] Preferably, the rectangular plug is inserted into the rectangular slot and the two conductive posts are respectively inserted into the two conductive copper tubes for electrical connection.

[0010] Preferably, the outer wall of the plug-in end is fixedly provided with an external thread, the inner wall of the rotating tube is fixedly provided with an internal thread, and the rotating tube is fitted into the outer wall of the plug-in end and fixedly connected by the external thread and the internal thread.

[0011] Preferably, a circular limiting groove is provided at the upper end of the rear end face of the rotating tube, and the front end of the movable rod extends out of the front end face of the insertion end and is inserted into the circular limiting groove.

[0012] Preferably, the rear end of the movable rod extends out of the plug-in end rear end face and is fixedly connected to a circular piece.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the mechanical locking design of the movable rod and the circular limiting groove is adopted, and the automatic reset function of the spring is combined to effectively prevent accidental loosening caused by external force collision, significantly improve the connection stability, and ensure the reliability of power transmission.

[0015] (2) In this utility model, by setting a rotating tube structure with threaded connection, the quick plugging and unplugging function of the wire harness connection device is realized. During operation, only rotating the rotating tube is needed to complete the tightening or loosening, which greatly improves the disassembly and assembly efficiency and is especially suitable for occasions that require frequent plugging and unplugging.

[0016] (3) In this utility model, the automatic alignment and connection of the conductive column and the conductive copper tube is achieved through the precise matching design of the rectangular plug and the rectangular slot, which not only ensures the accuracy of the electrical connection, but also simplifies the operation process. At the same time, the overall structure is compact and easy to install and use in various narrow spaces. Attached Figure Description

[0017] Figure 1 This is a front view of the quick-pluggable wire harness connection device of this utility model;

[0018] Figure 2 This is a side sectional view of the present invention;

[0019] Figure 3 This is a top sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Plug-in end; 101. Rectangular plug-in part; 102. Conductive copper tube; 103. External thread part; 104. Telescopic groove; 2. First wire harness; 201. First wire harness core; 3. Connecting end; 301. Rectangular slot; 302. Conductive post; 303. Tightening ring; 4. Second wire harness; 401. Second wire harness core; 5. Rotating tube; 501. Internal thread part; 502. Circular limiting groove; 6. Movable rod; 601. Limiting ring; 602. Spring; 603. Circular plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a quick-pluggable wire harness connection device, including a plug-in end 1 and a connecting end 3. A rectangular plug-in portion 101 is fixedly connected to the middle of the front end of the plug-in end 1, and a first wire harness 2 is fixedly connected to the middle of the rear end of the plug-in end 1. The front end of the plug-in end 1 is connected to the connecting end 3. A rectangular slot 301 is provided in the middle of the rear end face of the connecting end 3. A second wire harness 4 is fixedly connected to the middle of the front end of the connecting end 3. Conductive copper tubes 102 are provided on both sides of the middle of the rectangular plug-in portion 101. First wire harness cores 201 are provided on both sides of the middle of the first wire harness 2. The front ends of the two first wire harness cores 201 are inserted into the plug-in end 1 and electrically connected to the rear ends of the two conductive copper tubes 102 respectively. Conductive posts 302 are provided on both sides of the center of the slot 301. The front ends of the conductive posts 302 are fixedly connected to the front end face of the rectangular slot 301. Second wire harness cores 401 are provided on both sides of the center of the second wire harness 4. The rear ends of the two second wire harness cores 401 are inserted into the connecting end 3 and electrically connected to the front ends of the two conductive posts 302 respectively. The rectangular plug-in part 101 is inserted into the rectangular slot 301 and the two conductive posts 302 are inserted into the two conductive copper tubes 102 respectively and electrically connected. The insertion end 1 and the connecting end 3 are initially positioned and connected by the rectangular plug-in part 101 inserted into the rectangular slot 301, and the first wire harness core 201 and the second wire harness core 401 are electrically connected.

[0024] Please see Figure 2 and Figure 3 A tightening ring 303 is fixedly connected to the rear end of the outer wall of the connecting end 3. A rotating tube 5 is rotatably connected to the outside of the tightening ring 303. An external thread 103 is fixedly provided on the front end of the outer wall of the insertion end 1. An internal thread 501 is fixedly provided on the inner wall of the rotating tube 5. The rotating tube 5 is inserted into the front end of the outer wall of the insertion end 1 and is fixedly connected to the internal thread 501 by the external thread 103. When the rotating tube 5 is threaded with the insertion end 1, the insertion end 1 and the connecting end 3 are fixed to prevent loosening.

[0025] Please see Figure 2 and Figure 4A telescopic groove 104 is provided at the upper middle part of the inner part of the plug-in end 1. A movable rod 6 is provided inside the telescopic groove 104. A limit ring 601 is fixedly connected to the outer wall of the movable rod 6 at the front end of the telescopic groove 104. A spring 602 is provided outside the movable rod 6 at the rear end of the limit ring 601. A circular limit groove 502 is provided at the upper end of the rear end face of the rotating tube 5. The front end of the movable rod 6 extends out of the front end face of the plug-in end 1 and inserts into the circular limit groove 502. The rotation of the rotating tube 5 is controlled by the movable rod 6 inserting into the circular limit groove 502. The movement is restricted by a spring 602 pressing against a limiting ring 601, which keeps the movable rod 6 inserted into the circular limiting groove 502. This prevents the rotating tube 5 from rotating due to contact, which could cause the insertion end 1 and the connecting end 3 to separate. The rear end of the movable rod 6 extends out of the rear end face of the insertion end 1 and is fixedly connected to a circular piece 603. When separation is required, the circular piece 603 pulls the movable rod 6 backward, causing the front end of the movable rod 6 to disengage from the circular limiting groove 502. This allows the rotating tube 5 to be rotated, separating the insertion end 1 and the connecting end 3.

[0026] Working Principle: In use, first align the rectangular insertion part 101 of the insertion end 1 with the rectangular slot 301 of the connection end 3 and insert it, so that the two conductive posts 302 are respectively inserted into the corresponding conductive copper tubes 102 to achieve electrical connection. Then rotate the rotating tube 5, and the internal thread part 501 and the external thread part 103 engage to push the rotating tube 5 forward until the tightening ring 303 is tightly fitted with the front end face of the insertion end 1, completing the mechanical fixation. At this time, the movable rod 6 automatically embeds into the circular limiting groove 502 of the rotating tube 5 under the action of the spring 602, locking the rotation state of the rotating tube 5 and preventing accidental loosening. When it is necessary to disconnect the connection, pull the circular piece 603 backward to disengage the movable rod 6 from the circular limiting groove 502, and then rotate the rotating tube 5 in the opposite direction to release the fixation and achieve quick separation. This device, through the dual protection of threaded fastening and mechanical locking, ensures both convenient insertion and removal and effectively improves the connection stability.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-pluggable wire harness connection device, comprising a plug-in end (1) and a connecting end (3), characterized in that: A rectangular plug-in part (101) is fixedly connected to the middle of the front end of the plug-in end (1). A first wire harness (2) is fixedly connected to the middle of the rear end of the plug-in end (1). A telescopic groove (104) is provided at the upper middle part inside the plug-in end (1). A movable rod (6) is provided inside the telescopic groove (104). A limit ring (601) is fixedly connected to the outer wall of the movable rod (6) at the front end of the telescopic groove (104). A spring (602) is provided outside the movable rod (6) at the rear end of the limit ring (601). A connecting end (3) is connected to the front end of the plug-in end (1). A rectangular slot (301) is provided in the middle of the rear end face of the connecting end (3). A second wire harness (4) is fixedly connected to the middle of the front end of the connecting end (3). A tightening ring (303) is fixedly connected to the rear end of the outer wall of the connecting end (3). A rotating tube (5) is rotatably connected to the outside of the tightening ring (303).

2. The quick-pluggable wire harness connection device according to claim 1, characterized in that: The rectangular plug-in part (101) has conductive copper tubes (102) on both sides of the middle part, and the first wire harness (2) has first wire harness cores (201) on both sides of the middle part. The front ends of the two first wire harness cores (201) are inserted into the plug-in end (1) and electrically connected to the rear ends of the two conductive copper tubes (102) respectively.

3. The quick-pluggable wire harness connection device according to claim 2, characterized in that: Conductive posts (302) are provided on both sides of the middle part inside the rectangular slot (301). The front end of the conductive post (302) is fixedly connected to the front end face inside the rectangular slot (301). The second wire harness (4) is provided on both sides of the middle part inside. The rear ends of the two second wire harness cores (401) are inserted into the connection end (3) and electrically connected to the front ends of the two conductive posts (302) respectively.

4. The quick-pluggable wire harness connection device according to claim 3, characterized in that: The rectangular plug (101) is inserted into the rectangular slot (301) and the two conductive posts (302) are respectively inserted into the two conductive copper tubes (102) for electrical connection.

5. The quick-pluggable wire harness connection device according to claim 1, characterized in that: The front end of the outer wall of the plug-in end (1) is fixedly provided with an external thread (103), and the inner wall of the rotating tube (5) is fixedly provided with an internal thread (501). The rotating tube (5) is inserted into the front end of the outer wall of the plug-in end (1) and is fixedly connected to the internal thread (501) by the external thread (103).

6. The quick-pluggable wire harness connection device according to claim 1, characterized in that: The upper end of the rear end face of the rotating tube (5) is provided with a circular limiting groove (502), and the front end of the movable rod (6) extends out of the front end face of the plug-in end (1) and is inserted into the circular limiting groove (502).

7. The quick-pluggable wire harness connection device according to claim 1, characterized in that: The rear end of the movable rod (6) extends out to the rear end face of the plug-in end (1) and is fixedly connected to a circular piece (603).

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