Quick connecting device for automobile wire harness

Abstract

The utility model relates to the technical field of automobile wire harness connection, and provides an automobile wire harness rapid connection device which comprises a wire harness connection female end, a side cover fixedly connected to the side face of the wire harness connection female end, an annular groove formed in the front face of the side cover, and a wire harness connection child end arranged on the upper portion of the wire harness connection female end and capable of being connected with the wire harness connection female end in an assembled mode. The wire harness connecting female end and the side cover are provided with a screwing assembly, and the inner wall of the wire harness connecting female end is annularly provided with a mortise lock assembly which can be pushed inwards under the rotation of the screwing assembly so as to complete the insertion and locking of the wire harness connecting sub-end at the wire harness connecting female end. The outer side of the screwing assembly is further provided with an elastic self-locking assembly capable of completing elastic releasing self-locking at the annular groove after the wire harness connecting sub-end is inserted and locked at the wire harness connecting female end. According to the design, mechanical locking is adopted to replace magnetic attraction connection, and a dual-self-locking mechanism design is matched, so that the situation that the wiring harness terminal is loosened under vibration or external force is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness connection technology, specifically to an automotive wiring harness quick connection device. Background Technology

[0002] The quick-connect device for automotive wiring harnesses is a key component in the automotive circuit system. Its main functions are to improve connection efficiency, ensure signal transmission reliability, and enhance system safety. However, how to improve the connection stability between automotive wiring harness terminals and prevent loosening due to vibration or external force is an urgent problem to be solved.

[0003] A search revealed that CN221226696U discloses a quick connection device for automotive wiring harnesses, comprising a wiring harness A with multiple connection terminals and a wiring harness B with multiple connection end slots adapted to the connection terminals. Both wiring harnesses A and B are rotatably fitted with rotating sleeves, and opposite sides of the two rotating sleeves are provided with magnetic suction surfaces. An automatic alignment mechanism is provided on opposite sides of wiring harnesses A and B. The device also includes a guide sleeve, which is fixedly installed on one of the rotating sleeves and slides in cooperation with the other rotating sleeve. This invention facilitates automatic alignment of the connection terminals and connection end slots before insertion, avoiding wear on the connection terminals during the alignment process and preventing any impact on the conductivity of the connection.

[0004] The aforementioned quick-connect device for automotive wiring harnesses is fixedly connected only by the magnetic attraction surface of the rotating sleeve. However, the magnetic attraction surface is easily affected by external magnetic field interference or magnet demagnetization, which can lead to loosening under vibration or external force, and ultimately cause poor contact at the terminals. Utility Model Content

[0005] This invention proposes a quick connection device for automotive wiring harnesses, which solves the problem in the prior art where the magnetic surface is easily affected by external magnetic field interference or magnet demagnetization, resulting in loosening under vibration or external force, and ultimately leading to poor contact of the terminals.

[0006] The technical solution of this utility model is as follows: A quick connection device for automotive wiring harnesses includes a female wiring harness connector, a side cover fixedly connected to the side of the female wiring harness connector, an annular groove on the front of the side cover, a male wiring harness connector that can be assembled and connected to the female wiring harness connector at the upper part of the female wiring harness connector, a screwing assembly provided at the female wiring harness connector and the side cover, and a locking assembly that can be pushed inward by the rotation of the screwing assembly to complete the insertion and locking of the male wiring harness connector at the female wiring harness connector, and an elastic self-locking assembly that can elastically release and self-lock at the annular groove after the male wiring harness connector is inserted and locked at the female wiring harness connector, is also provided on the outside of the screwing assembly.

[0007] Preferably, limit rods are symmetrically fixedly connected to the inner wall of the wire harness connecting female end, and sealing rings are distributed on the top of the wire harness connecting female end.

[0008] Preferably, the outer side of the wire harness connector has symmetrically formed limiting grooves, which match the limiting rods, and the outer side of the wire harness connector has an annular slot.

[0009] Preferably, the screwing assembly includes a worm gear rotatably connected inside the side cover. The screwing assembly also includes a rotating shaft rotatably connected inside the side cover and located outside the wire harness connection female end. A worm wheel is fixedly connected to the lower end of the rotating shaft. The worm wheel is in contact with the worm gear and is meshed and rotatably connected. The screwing assembly also includes a gear plate fixedly connected to the upper end of the rotating shaft.

[0010] Preferably, the screwing assembly further includes a toothed ring, which is rotatably connected inside the wire harness connection female end. The toothed ring is in contact with the toothed disc and is meshed and rotatably connected. The screwing assembly further includes a top block, which is fixedly connected in a ring shape to the inside of the toothed ring.

[0011] Preferably, the locking assembly includes a pin, each pin being sized to match a slot. The pin is arranged in a ring at the groove on the inner wall of the wire harness connection female end. A sliding rod is fixedly connected to both sides of each pin, and a second spring ring is sleeved on the outer side of each sliding rod.

[0012] Preferably, the locking assembly further includes side plates, each side plate corresponding to a pin, the side plate being fixedly connected inside the wire harness connection female end, the side plate being slidably connected to the second spring coil, and the side surface of the side plate contacting the second spring coil.

[0013] Preferably, the elastic self-locking assembly includes a screw cap located at the annular groove and fixedly connected to the worm gear. An internal rod is fixedly connected inside the screw cap, and a first spring ring is sleeved in the middle of the internal rod. The elastic self-locking assembly also includes a pressing block slidably connected to the outside of the internal rod and in contact with the first spring ring. A locking post is also fixedly connected to the side of the pressing block, and the size of the locking post matches the size of the locking groove in the annular groove.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Mechanical locking replaces magnetic connection

[0016] Eliminating the problem of magnetic dependence

[0017] The mechanical engagement between the insert and the slot is driven by a worm gear drive (screwing assembly), which completely avoids the risk of connection failure caused by magnetic interference or demagnetization of the magnetic surface in CN221226696U.

[0018] Forward mechanical locking structure

[0019] Push the insert into the slot by pushing the top block (see...) Figure 5-6 This forms a rigid physical lock, which effectively improves the resistance to vibration and impact compared to the passive adsorption of magnets.

[0020] II. Design of a Dual Self-Locking Mechanism

[0021] worm gear self-locking characteristics

[0022] The worm and worm wheel can form an automatic lock to prevent accidental unlocking caused by reverse rotation.

[0023] Elastic self-locking component ( Figure 3 ,7)

[0024] The locking pin is inserted into the locking groove of the annular groove by the pressure of the first spring coil, achieving secondary anti-loosening. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a split schematic diagram of the wire harness connection female end and the elastic self-locking component of this utility model;

[0027] Figure 2 This is a schematic diagram of the wire harness connection female end and side cover of this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of region A;

[0029] Figure 4 This is a disassembled schematic diagram of the wire harness connection female end and the screwing assembly of this utility model;

[0030] Figure 5 This is a schematic diagram of the overall locking assembly of this utility model;

[0031] Figure 6 This is a partial schematic diagram of the locking assembly of this utility model;

[0032] Figure 7 This is a cross-sectional view of the screw cap of this utility model;

[0033] In the diagram: 1. Wiring harness female connector; 11. Side cover; 111. Ring groove; 12. Limiting rod; 13. Sealing ring; 2. Elastic self-locking assembly; 21. Tightening cap; 22. Pressing block; 221. Locking post; 23. Internal rod; 231. First spring ring; 3. Tightening assembly; 31. Worm gear; 32. Rotating shaft; 321. Worm wheel; 322. Gear plate; 33. Gear ring; 331. Top block; 4. Locking assembly; 41. Insert post; 42. Slide rod; 421. Second spring ring; 43. Side plate; 5. Wiring harness female connector; 51. Slot; 52. Limiting groove. Detailed Implementation

[0034] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0035] Please see Figures 1-7 This utility model provides a technical solution: a quick connection device for automotive wiring harnesses, including a wiring harness female end 1, a side cover 11 fixedly connected to the side of the wiring harness female end 1, an annular groove 111 on the front of the side cover 11, a wiring harness female end 5 that can be assembled and connected to the wiring harness female end 1 at the upper part of the wiring harness female end 1, a screwing assembly 3 provided at the wiring harness female end 1 and the side cover 11, a locking assembly 4 that can be pushed inward by the rotation of the screwing assembly 3 to complete the insertion and locking of the wiring harness female end 5 at the wiring harness female end 1, and an elastic self-locking assembly 2 that can elastically release and self-lock at the annular groove 111 after the wiring harness female end 5 is inserted and locked at the wiring harness female end 1, provided on the outside of the screwing assembly 3; this design solves the problem in the prior art that the magnetic surface is easily affected by external magnetic field interference or magnet demagnetization, which leads to loosening under vibration or external force, and ultimately causes poor contact of the terminals.

[0036] Please see Figure 1 Limiting rods 12 are symmetrically fixedly connected to the inner wall of the wire harness connecting female end 1, and sealing rings 13 are distributed on the top of the wire harness connecting female end 1.

[0037] A limiting groove 52 is symmetrically opened on the outer side of the wire harness connector 5. The limiting groove 52 matches the limiting rod 12. A slot 51 is opened in a ring on the outer side of the wire harness connector 5.

[0038] This design allows the wire harness connector 5 to slide along the limiting rod 12 through the limiting groove 52 into the wire harness connector 1, thereby completing the pre-locking positioning of the wire harness connector 5 within the wire harness connector 1.

[0039] Please see Figure 4 and Figure 5 and Figure 6 The screwing assembly 3 includes a worm gear 31, which is rotatably connected inside the side cover 11. The screwing assembly 3 also includes a rotating shaft 32, which is rotatably connected inside the side cover 11 and located outside the wire harness connection female end 1. A worm wheel 321 is fixedly connected to the lower end of the rotating shaft 32. The worm wheel 321 is in contact with the worm gear 31 and is meshed and rotatably connected. The screwing assembly 3 also includes a gear plate 322, which is fixedly connected to the upper end of the rotating shaft 32.

[0040] The screwing assembly 3 also includes a toothed ring 33, which is rotatably connected inside the wire harness connection female end 1. The toothed ring 33 is in contact with the toothed disc 322 and is meshed and rotatably connected. The screwing assembly 3 also includes a top block 331, which is fixedly connected in a ring shape inside the toothed ring 33.

[0041] The locking assembly 4 includes a pin 41, each pin 41 being matched with the size of each slot 51. The pin 41 is arranged in a ring at the groove on the inner wall of the wire harness connection female end 1. Each pin 41 is fixedly connected to a slide rod 42 on both sides, and a second spring ring 421 is sleeved on the outer side of each slide rod 42.

[0042] The mortise lock assembly 4 also includes a side plate 43, each side plate 43 corresponding to each mortise pin 41. The side plate 43 is fixedly connected inside the wire harness connection female end 1. The side plate 43 is slidably connected to the second spring ring 421. The side of the side plate 43 is in contact with the second spring ring 421.

[0043] This design allows each insert 41 to be pushed into the slot 51 by the rotation of the gear ring 33 and the top block 331, while the self-locking effect between the worm 31 and the worm wheel 321 can prevent loosening.

[0044] Please see Figure 3 and Figure 7 The elastic self-locking component 2 includes a screw cap 21, which is located at the annular groove 111 and is fixedly connected to the worm gear 31. An internal rod 23 is fixedly connected inside the screw cap 21, and a first spring ring 231 is sleeved in the middle of the internal rod 23. The elastic self-locking component 2 also includes a pressing block 22, which is slidably connected to the outside of the internal rod 23. The pressing block 22 is in contact with the first spring ring 231. A locking post 221 is also fixedly connected to the side of the pressing block 22, and the locking post 221 matches the size of the locking groove in the annular groove 111.

[0045] After the locking work between the wire harness connector 5 and the wire harness connector 1 is completed by using the rotating component 3 to push the locking component 4 into the plug 41;

[0046] The first spring ring 231 and the locking post 221 can be used to elastically lock the cap 21 at the annular groove 111 to prevent it from becoming loose due to external force.

[0047] Working principle:

[0048] When it is necessary to complete the assembly and connection of the wire harness connector 5 inside the wire harness connector 1, first align the limiting groove 52 on the outside of the wire harness connector 5 with the limiting rod 12 on the inside of the wire harness connector 1, and slide the wire harness connector 5 through the limiting groove 52 along the limiting rod 12 into the wire harness connector 1 to complete the pre-positioning of the wire harness connector 5 inside the wire harness connector 1.

[0049] Then pinch the cap 21 and start to rotate. In particular, when pinching the cap 21, it will come into contact with the squeezing block 22. At this time, the squeezing block 22 will drive the locking post 221 to push into the cap 21. At this time, the locking post 221 will disengage from the locking groove in the annular groove 111.

[0050] When the screw cap 21 is rotated, the worm gear 31 will rotate synchronously. At this time, the worm wheel 321 meshing on the side of the worm gear 31 will drive the rotating shaft 32 and the gear plate 322 to rotate synchronously. When the gear plate 322 rotates, the gear ring 33 and the top block 331 will mesh and rotate synchronously and contact the pressing post 41. At this time, each post 41 will be pushed into each slot 51 under the action of the top block 331. After the post 41 is pushed into the slot 51, the locking work of the wire harness connection sub-end 5 inside the wire harness connection female end 1 can be completed.

[0051] Specifically, the insert 41 is elastically slidable at the side plate 43 by the second spring coil 421. Therefore, when the top block 331 disengages from the insert 41, the insert 41 can be retracted and reset under the elastic action of the second spring coil 421.

[0052] In particular, the self-locking effect of the worm 31 and worm wheel 321 can prevent the insertion post 41 from accidentally retracting into the slot 51;

[0053] Specifically, after the insertion and locking of the insert 41 into the slot 51 is completed, the pressing block 22 is released. At this time, the pressing block 22 can be reset under the elastic action of the first spring ring 231 and re-inserted into the slot in the ring groove 111. This design can limit the rotation of the cap 21 to prevent the cap 21 from rotating due to accidental external force.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick connection device for a car wiring harness comprising a wiring harness connection female end (1), characterized in that, A side cover (11) is fixedly connected to the side of the female wire harness connector (1). An annular groove (111) is provided on the front of the side cover (11). A wire harness connector daughter end (5) that can be assembled and connected with the female wire harness connector (1) is provided on the upper part of the female wire harness connector (1). A screwing assembly (3) is provided at the female wire harness connector (1) and the side cover (11). A locking assembly (4) is provided in an annular shape on the inner wall of the female wire harness connector (1) that can be pushed inward under the rotation of the screwing assembly (3) to complete the insertion and locking of the wire harness connector daughter end (5) at the female wire harness connector (1). An elastic self-locking assembly (2) is also provided on the outside of the screwing assembly (3) that can complete the elastic release and self-locking at the annular groove (111) after the wire harness connector daughter end (5) is inserted and locked at the female wire harness connector (1).

2. The quick-connect device for automotive wiring harnesses according to claim 1, characterized in that, Limiting rods (12) are symmetrically fixedly connected to the inner wall of the female end of the wire harness (1), and sealing rings (13) are distributed on the top of the female end of the wire harness (1).

3. The quick-connect device for automotive wiring harnesses according to claim 1, characterized in that, The outer side of the wire harness connector (5) is symmetrically provided with limiting grooves (52), the limiting grooves (52) are matched with the limiting rod (12), and the outer side of the wire harness connector (5) is provided with a slot (51) in an annular shape.

4. The quick-connect device for automotive wiring harnesses according to claim 1, characterized in that, The screwing assembly (3) includes a worm gear (31) which is rotatably connected inside the side cover (11). The screwing assembly (3) also includes a rotating shaft (32) which is rotatably connected inside the side cover (11) and located outside the wire harness connection female end (1). A worm wheel (321) is fixedly connected to the lower end of the rotating shaft (32). The worm wheel (321) is in contact with the worm gear (31) and is meshed and rotatably connected. The screwing assembly (3) also includes a gear plate (322) which is fixedly connected to the upper end of the rotating shaft (32).

5. The quick-connect device for automotive wiring harnesses according to claim 4, characterized in that, The screwing assembly (3) also includes a toothed ring (33), which is rotatably connected inside the wire harness connection female end (1). The toothed ring (33) is in contact with the toothed disc (322) and is meshed and rotatably connected. The screwing assembly (3) also includes a top block (331), which is fixedly connected in a ring shape inside the toothed ring (33).

6. The quick-connect device for automotive wiring harnesses according to claim 5, characterized in that, The locking assembly (4) includes a pin (41), each pin (41) being sized to match each slot (51). The pin (41) is arranged in a ring at the groove on the inner wall of the wire harness connection end (1). Each pin (41) is fixedly connected to a slide rod (42) on both sides, and a second spring ring (421) is sleeved on the outer side of each slide rod (42).

7. The quick-connect device for automotive wiring harnesses according to claim 6, characterized in that, The locking assembly (4) also includes a side plate (43), each side plate (43) is positioned corresponding to each pin (41), the side plate (43) is fixedly connected inside the wire harness connection female end (1), the side plate (43) is slidably connected to the second spring ring (421), and the side of the side plate (43) is in contact with the second spring ring (421).

8. The quick-connect device for automotive wiring harnesses according to claim 1, characterized in that, The elastic self-locking assembly (2) includes a screw cap (21), which is located in the annular groove (111) and is fixedly connected to the worm gear (31). An internal rod (23) is fixedly connected inside the screw cap (21), and a first spring ring (231) is sleeved in the middle of the internal rod (23). The elastic self-locking assembly (2) also includes a pressing block (22), which is slidably connected to the outside of the internal rod (23). The pressing block (22) is in contact with the first spring ring (231), and a locking post (221) is fixedly connected to the side of the pressing block (22). The locking post (221) matches the size of the locking groove in the annular groove (111).

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