Anti-dropping vehicle-mounted wire harness connecting mechanism
By using a worm gear locking mechanism and a spline shaft and spline cylinder structure, the problems of cumbersome operation and insufficient stability of existing vehicle wiring harness connectors are solved, achieving simple installation and stable connection under vibration conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGTAI DONGDIAN ELECTRONICS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
Smart Images

Figure CN224472835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle wiring harness connection technology, specifically to a vehicle wiring harness connection mechanism that prevents detachment. Background Technology
[0002] A wire harness connector is a type of terminal. A connector, also known as a plug, consists of a plug and a socket. Connectors are relay stations for wire harnesses in automotive circuits. Connections between wire harnesses and between wire harnesses and electrical components are generally made using connectors. Automotive wire harness connectors are important components that connect various electrical and electronic devices in a car. To prevent the connectors from coming loose while the car is in motion.
[0003] In the prior art, patent publication number CN202020887584.X discloses a terminal anti-detachment automotive wiring harness connector, including a wiring harness connector terminal. The outer wall of the wiring harness connector terminal contacts an upper clamping ring and a lower clamping ring. One side of the lower clamping ring is fixedly connected to one side of an L-shaped lower fixing plate, and one side of the upper clamping ring is fixedly connected to one side of an upper fixing plate. The bottom end of the L-shaped fixing plate is provided with a first threaded hole, and one side of the upper fixing plate is provided with a second threaded hole. The first threaded hole is rotatably connected to one end of a lead screw, and the second threaded hole is threadedly connected to the other end of the lead screw.
[0004] The above-mentioned wire harness connector has some problems in actual use. For example, when fixing the wire end, a screwdriver is needed to turn the nut to bring the two clamping rings close to the clamping end of the wire, which is relatively troublesome. Moreover, when the vehicle is in motion, the nut may rotate slightly on its own after being vibrated, which will reduce the clamping effect of the two clamping rings and weaken the stability. To address this, we propose an anti-detachment vehicle wire harness connection mechanism. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an anti-detachment vehicle wiring harness connection mechanism that is easy to operate, has strong stability, and can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a vehicle wiring harness connection mechanism for preventing disconnection, comprising a main wiring harness connector, a sub-wiring harness socket inserted inside the main wiring harness connector, a main wiring harness on the rear side of the main wiring harness connector, a sub-wiring harness on the front side of the sub-wiring harness socket, the front end of the sub-wiring harness and the rear end of the main wiring harness being respectively connected to an external vehicle signal transmission device, and further comprising a wiring harness anti-disconnection component;
[0007] Wiring harness anti-detachment assembly: It includes a rotating shaft, a retaining plate, an arc groove, and a horizontal limiting plate. The rotating shaft is symmetrically connected to the left and right inner walls of the main wiring harness connector. The outer arc surface of the rotating shaft is fixedly connected to the retaining plate. The upper and lower surfaces of the sub-wiring harness socket are respectively provided with arc grooves. The front surface of the main wiring harness connector is symmetrically fixedly connected to the upper and lower sides with horizontal limiting plates. The central axis of the inner arc surface of the upper arc groove coincides with the central axis of the upper rotating shaft, and the central axis of the inner arc surface of the lower arc groove coincides with the central axis of the lower rotating shaft. The installation method is simple when connecting the vehicle wiring harness, and the stability is strong after the wiring harness is fixed.
[0008] Furthermore, the wire harness anti-detachment assembly also includes a worm gear and a worm. The worm gear is fixedly connected to the right side of the outer arc surface of the two rotating shafts respectively. The right side of the upper side wall and the right side of the lower side wall of the bus harness connector are respectively rotatably connected to the worm. The two worms are fixedly connected to each other, and the two worms have opposite directions of rotation. The two worms are respectively engaged with the worm gear corresponding to the horizontal position to provide transmission power for the rotation of the rotating shaft.
[0009] Furthermore, the wire harness anti-detachment component also includes a mounting groove and a spline shaft. The mounting groove is located on the right side of the upper surface of the bus harness connector. The upper end of the worm gear on the upper side is fixedly connected to the spline shaft, which is located inside the mounting groove to drive the worm gear to rotate.
[0010] Furthermore, the wire harness anti-detachment assembly also includes a driving component, which includes a sealing plate, a sliding groove, a sliding cylinder, and a splined cylinder. The sealing plate is fixedly connected to the upper side of the mounting groove. A sliding groove is provided in the middle of the sealing plate. A sliding cylinder is slidably connected inside the sliding groove. A splined cylinder is rotatably connected inside the sliding cylinder, which is used to transmit power through the worm gear rotation.
[0011] Furthermore, the driving component also includes a spring, which is fixedly connected between the slide cylinder and the lower side wall of the sealing plate to provide power for the slide cylinder to reset.
[0012] Furthermore, the driving component also includes a torsion block, which is fixedly connected to the upper side of the spline cylinder to provide power for locking.
[0013] Furthermore, a pre-insertion groove is provided in the front slot of the bus harness connector, and a pre-insertion connector is provided on the rear side of the outer arc surface of the sub-harness socket. The outer surface of the pre-insertion connector is inserted into the interior of the pre-insertion groove to achieve the function of pre-insertion tightness.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This anti-detachment vehicle wiring harness connection mechanism has the following advantages:
[0015] This vehicle wiring harness connection mechanism adds a worm gear locking mechanism and a detachable spline shaft and spline cylinder structure at the connection between the sub-wire and the busbar. The installation method is simple. After installation, due to the worm gear locking effect, even if the vehicle is driving on bumpy roads and generating vibration, it will not affect the stability of the vehicle wiring harness connection. The vehicle wiring harness connection is easy to install and has strong stability after the wiring harness connection is fixed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the present invention during an explosion.
[0018] Figure 3 This is a schematic diagram of the structure of the busbar harness connector of this utility model;
[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the drive component of this utility model.
[0021] In the diagram: 1. Busbar harness connector, 2. Sub-harness socket, 3. Harness anti-detachment component, 31. Shaft, 32. Clamping plate, 33. Arc groove, 34. Horizontal limit plate, 35. Worm gear, 36. Worm, 37. Mounting slot, 38. Spline shaft, 39. Drive components, 391. Sealing plate, 392. Slide groove, 393. Slide cylinder, 394. Spring, 395. Spline cylinder, 396. Torque block, 4. Sub-harness, 5. Busbar harness, 6. Pre-insertion slot, 7. Pre-insertion connector. 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. 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.
[0023] Please see Figure 1-5This embodiment provides a technical solution: including a bus harness connector 1, a sub-wire harness socket 2 inserted inside the bus harness connector 1, a bus harness 5 provided on the rear side of the bus harness connector 1, a sub-wire harness 4 provided on the front side of the sub-wire harness socket 2, the front end of the sub-wire harness 4 and the rear end of the bus harness 5 respectively connected to an external vehicle signal transmission device, the output end of the bus harness connector 1 electrically connected to the front end of the input end of the bus harness 5, the input end of the sub-wire harness socket 2 electrically connected to the rear output end of the sub-wire harness 4, and also including a wire harness anti-disconnection component 3, the front slot of the bus harness connector 1 has a reserved pre-insertion groove 6, the rear side of the outer arc surface of the sub-wire harness socket 2 has a reserved pre-insertion connector 7, the outer surface of the pre-insertion connector 7 is inserted into the interior of the pre-insertion groove 6, when the vehicle wire harness connection mechanism needs to be used, the bus harness connector 1 and the sub-wire harness socket 2 can be manually picked up, and the pre-insertion connector 7 can be inserted into the interior of the pre-insertion groove 6 first;
[0024] The wire harness anti-detachment component 3 includes a rotating shaft 31, a clamping plate 32, an arc-shaped groove 33, and a horizontal limiting plate 34. The rotating shaft 31 is symmetrically connected to the left and right inner walls of the main wire harness connector 1. The clamping plate 32 is fixedly connected to the outer arc surface of the rotating shaft 31. The upper and lower surfaces of the sub-wire harness socket 2 are respectively provided with arc-shaped grooves 33. The front surface of the main wire harness connector 1 is symmetrically fixedly connected to the upper and lower surfaces with horizontal limiting plates 34. The central axis of the inner arc surface of the upper arc-shaped groove 33 coincides with the central axis of the upper rotating shaft 31, and the central axis of the inner arc surface of the lower arc-shaped groove 33 coincides with the central axis of the lower rotating shaft 31. The wire harness anti-detachment component 3 also includes a worm gear 35 and a worm 36. The worm gear 35 is fixedly connected to the outer surfaces of the two rotating shafts 31 respectively. On the right side of the arc surface, worm gears 36 are rotatably connected to the right side of the upper and lower side walls of the bus harness connector 1, respectively. The two worm gears 36 are fixedly connected, with opposite rotation directions. Each worm gear 36 meshes with a worm wheel 35 in a horizontal position. The wire harness anti-detachment component 3 also includes a mounting groove 37 and a splined shaft 38. The mounting groove 37 is located on the right side of the upper surface of the bus harness connector 1. The upper end of the upper worm gear 36 is fixedly connected to the splined shaft 38, which is located inside the mounting groove 37. The wire harness anti-detachment component 3 also includes a driving component 39, which includes a sealing plate 391, a sliding groove 392, a sliding cylinder 393, and a splined cylinder 395. The sealing plate 391 is fixedly connected to the upper side of the mounting groove 37. A groove 392 is provided in the middle of the sealing plate 391. A slide cylinder 393 is slidably connected inside the groove 392, and a splined cylinder 395 is rotatably connected inside the slide cylinder 393. The driving component 39 also includes a spring 394, which is fixedly connected between the slide cylinder 393 and the lower side wall of the sealing plate 391. The driving component 39 also includes a torsion block 396, which is fixedly connected to the upper side of the splined cylinder 395. The torsion block 396 can be manually rotated and pressed to force the slide cylinder 393 to overcome the elastic force of the spring 394, and to allow the splined cylinder 395 to be inserted into the splined shaft 38. At this time, the torsion block 396 can be rotated to rotate the splined cylinder 395, which in turn drives the two worm gears 36 to rotate simultaneously through the splined shaft 38. Since the rotation direction of 36 is opposite, it will drive the rotating shaft 31 to rotate in the opposite direction. At this time, the rotating shaft 31 can be driven to rotate, forcing the end of the clamping plate 32 to rotate around the central axis of the rotating shaft 31, forcing the clamping plate 32 to rotate into the interior of the arc groove 33, and using the rear side of the clamping plate 32 to press against the rear side plane wall of the arc groove 33 to complete the anti-disengagement. At this time, the torsion block 396 can be manually released. Affected by the elastic force of the spring 394, the slide cylinder 393 is pushed upward, so that the spline cylinder 395 is disengaged from the spline shaft 38. At this time, when the vehicle is moving, the spline shaft 38 is no longer subjected to external force and is locked by the worm gear 35 and the worm 36, locking the two rotating shafts 31. When the sub-wire harness 4 and the main wire harness 5 are pulled externally, the sub-wire harness socket 2 will not disengage from the main wire harness connector 1.
[0025] The working principle of the anti-detachment vehicle wiring harness connection mechanism provided by this utility model is as follows: When the vehicle wiring harness connection mechanism is needed, the female wiring harness connector 1 and the female wiring harness socket 2 can be manually picked up, and the pre-insertion connector 7 can be inserted into the pre-insertion slot 6. Then, the pressing torsion block 396 can be manually rotated to force the slide cylinder 393 to overcome the elastic force of the spring 394, and the spline cylinder 395 can be inserted into the spline shaft 38. At this time, the torsion block 396 can be rotated to make the spline cylinder 395 rotate, which in turn drives the two worm gears 36 to rotate simultaneously through the spline shaft 38. The two worm gears 36 rotate in opposite directions, so they will drive the rotating shaft 31 to rotate in the opposite direction. At this time, the rotating shaft 31 can be driven to rotate. The rotation of shaft 31 forces the end of the clamping plate 32 to rotate around the central axis of shaft 31, forcing the clamping plate 32 to rotate into the interior of the arc groove 33. The rear side of the clamping plate 32 then presses against the rear side plane wall of the arc groove 33 to prevent detachment. At this point, the torsion block 396 can be manually released. Under the influence of the elastic force of spring 394, the slide cylinder 393 is pushed upward, causing the spline cylinder 395 to disengage from the spline shaft 38. At this point, when the vehicle is in motion, the spline shaft 38 is no longer subjected to external force and is locked by the worm gear 35 and worm 36, locking the two shafts 31. When the sub-wiring harness 4 and the main wiring harness 5 are pulled externally, the sub-wiring harness socket 2 will not disengage from the main wiring harness connector 1.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A vehicle-mounted wiring harness connection mechanism for preventing disconnection, comprising a main wiring harness connector (1), a sub-wiring harness socket (2) inserted inside the main wiring harness connector (1), a main wiring harness (5) provided on the rear side of the main wiring harness connector (1), a sub-wiring harness (4) provided on the front side of the sub-wiring harness socket (2), the front end of the sub-wiring harness (4) and the rear end of the main wiring harness (5) respectively connected to an external vehicle-mounted signal transmission device, characterized in that: It also includes a wire harness anti-detachment component (3); The wire harness anti-detachment assembly (3) includes a rotating shaft (31), a clamping plate (32), an arc groove (33), and a horizontal limiting plate (34). The rotating shaft (31) is symmetrically connected to the left and right inner walls of the main wire harness connector (1). The clamping plate (32) is fixedly connected to the outer arc surface of the rotating shaft (31). The upper and lower surfaces of the sub-wire harness socket (2) are respectively provided with arc grooves (33). The front surface of the main wire harness connector (1) is symmetrically fixedly connected to the horizontal limiting plate (34). The central axis of the inner arc surface of the upper arc groove (33) coincides with the central axis of the upper rotating shaft (31). The central axis of the inner arc surface of the lower arc groove (33) coincides with the central axis of the lower rotating shaft (31).
2. The anti-detachment vehicle wiring harness connection mechanism according to claim 1, characterized in that: The wire harness anti-detachment component (3) also includes a worm gear (35) and a worm (36). The worm gear (35) is fixedly connected to the right side of the outer arc surface of the two rotating shafts (31). The right side of the upper side wall and the right side of the lower side wall of the bus harness connector (1) are respectively rotatably connected to the worm (36). The two worms (36) are fixedly connected to each other. The two worms (36) have opposite directions of rotation. The two worms (36) are respectively meshed with the worm gear (35) corresponding to the horizontal position.
3. The anti-detachment vehicle wiring harness connection mechanism according to claim 2, characterized in that: The wire harness anti-detachment component (3) also includes a mounting groove (37) and a spline shaft (38). The mounting groove (37) is located on the right side of the upper surface of the bus harness connector (1). The upper end of the worm gear (36) on the upper side is fixedly connected to the spline shaft (38), which is located inside the mounting groove (37).
4. The anti-detachment vehicle wiring harness connection mechanism according to claim 1, characterized in that: The wire harness anti-detachment assembly (3) also includes a driving component (39), which includes a sealing plate (391), a sliding groove (392), a sliding cylinder (393), and a splined cylinder (395). The sealing plate (391) is fixedly connected to the upper side of the mounting groove (37). The sealing plate (391) has a sliding groove (392) in the middle. The sliding cylinder (393) is slidably connected inside the sliding groove (392), and the splined cylinder (395) is rotatably connected inside the sliding cylinder (393).
5. The anti-detachment vehicle wiring harness connection mechanism according to claim 4, characterized in that: The drive component (39) also includes a spring (394), which is fixedly connected between the slide cylinder (393) and the lower side wall of the sealing plate (391).
6. The anti-detachment vehicle wiring harness connection mechanism according to claim 4, characterized in that: The drive component (39) also includes a torsion block (396), which is fixedly connected to the upper side of the splined cylinder (395).
7. The anti-detachment vehicle wiring harness connection mechanism according to claim 1, characterized in that: The front slot of the busbar connector (1) is provided with a pre-insertion groove (6), and the rear side of the outer arc surface of the sub-busbar socket (2) is provided with a pre-insertion connector (7). The outer surface of the pre-insertion connector (7) is inserted into the interior of the pre-insertion groove (6).