Wire harness and wire core waterproof connection plastic part

Abstract

The utility model relates to the technical field of wire harness cores, and discloses a wire harness core waterproof connecting plastic part, which comprises a waterproof shell and a connecting metal plate, a connecting device is arranged at the upper end of the waterproof shell, and the connecting metal plate is arranged on the surface of the inner wall of the waterproof shell. According to the waterproof connecting plastic part for the wire core of the wire harness, the fixing threaded rod, the metal inserting blocks and the connecting blocks are arranged, the metal inserting blocks are pushed to move oppositely, the metal inserting blocks drive the connecting blocks to be inserted into the surface of the top end of the connecting metal plate to be fixed in a threaded mode, and therefore the locking assembly can be replaced without spending a large amount of time for disassembly; meanwhile, resources are not wasted, the six-stage bolt rotates at the lower end of the plastic connecting piece, so that the plastic connecting piece and the metal inserting block can be fixed in a threaded mode, the position of the plastic connecting piece can be adjusted, the device can be suitable for different positions, and the service time of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness cores, in particular to a waterproof connecting plastic part for wire harness cores. Background Art

[0002] The wire harness core is a core component of the vehicle's wiring harness, and its quality directly impacts the vehicle's performance. The wire harness core processing includes inspection for burrs and damage on the surface, as well as drilling and stripping the wires in the middle for cables exceeding 50 meters in length.

[0003] The prior art discloses a wiring harness core waterproof connector with application number: CN202220767350.0, which includes an electrical connector and a waterproof component. The electrical connector includes a wiring part and a water-blocking connector, and the waterproof component includes a plastic adhesive layer and a protective sleeve. The two wiring parts are respectively arranged at both ends of the water-blocking connector and are integrally formed with the water-blocking connector. The plastic adhesive layer is arranged around the water-blocking connector, and the protective sleeve is sleeved on the electrical connector. The plastic adhesive layer can be bonded to the protective sleeve. The utility model is integrally formed by two wiring parts and a water-blocking connector. The two wiring parts are used to connect the external wires, so that the plastic adhesive layer melts and penetrates into or blocks the cross-section of the connected wires, and is bonded to the protective sleeve sleeve on the outermost periphery to form a waterproof blocking layer. The cost is low, the connection part will not be too large, the practicability is high, and the risk of waterproof failure caused by deviation of the connection cross-section of the wire connection part is effectively reduced.

[0004] The two connection parts and one water-blocking connector are integrally formed. When the connection part is damaged, the entire device needs to be replaced or the connection part and the water-blocking connector need to be cut and then welded, which takes a lot of time to repair and easily causes waste of resources. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof plastic connection part for wire harness cores, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a wiring harness core waterproof connecting plastic part, comprising a waterproof shell and a connecting metal plate, wherein a connecting device is installed at the upper end of the waterproof shell, and the connecting metal plate is installed on the inner wall surface of the waterproof shell.

[0007] The connecting device includes a connecting block, a fixed threaded rod, a locking assembly, a metal plug block and a rotating connecting piece. The fixed threaded rod is movably connected to the inner wall surface of the metal plug block, the fixed threaded rod is threadedly connected to the lower end of the connecting block, the connecting block is installed at the lower end of the locking assembly, and the rotating connecting piece is installed at the upper end of the connecting block.

[0008] Preferably, the locking assembly includes a connecting ring 1, a limiting plug, a plastic connector, a coil spring, a limiting threaded rod, a connecting ring 2 and a hexagonal bolt, the hexagonal bolt is threadedly connected to the lower end of the plastic connector, the limiting plug is inserted into the rear end of the plastic connector, the limiting threaded rod is fixedly connected to the back side of the limiting plug, the coil spring is fixedly connected to the back side of the limiting plug, the connecting ring 1 is inserted into the middle position of the plastic connector, and the connecting ring 2 is inserted into the middle position of the plastic connector.

[0009] Preferably, the rotating connector is installed at the lower end of the plastic connector, the hexagonal bolt is threadedly connected to the outward end of the plastic connector, and the hexagonal bolt is movably connected to the top surface of the connecting block. The hexagonal bolt rotates at the lower end of the plastic connector, and can threadably fix the plastic connector and the connecting block, thereby determining the position of the plastic connector.

[0010] Preferably, the plastic connector is movably connected to the top surface of the connecting block, the connecting block is threadedly connected to the top surface of the metal plug block, the metal plug block is movably connected to the top surface of the connecting metal plate, and the nut rotates on the threaded end surface of the fixed threaded rod. The fixed threaded rod can threadably fix the connecting metal plate, the connecting block and the metal plug block, making it convenient to replace the plastic connector.

[0011] Preferably, the metal plug is movably connected to the upper inner wall surface of the waterproof shell, and the fixed threaded rod is fixedly connected to the top surface of the connecting metal plate, pushing the metal plug to move downward, and the metal plug is inserted into the inner wall surface of the waterproof shell, and the metal plug slides along the threaded end surface of the fixed threaded rod, so that the metal plug and the connecting block can be threadedly fixed.

[0012] Preferably, the connecting ring 2 is movably connected to the rear end of the limiting threaded rod, the connecting ring 2 is fixedly connected to the back side of the coil spring, the connecting ring 2 is threadedly connected to the front side of the connecting ring 1, and the connecting ring 1 and the connecting ring 2 are threadedly connected, so that the connecting ring 1, the connecting ring 2 and the plastic connector can be threadedly fixed, and the wire harness core can be clamped and fixed.

[0013] Preferably, the coil spring is fixedly connected to the front side of the limiting plug, and the second connecting ring is located behind the limiting plug.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The wiring harness core waterproof connecting plastic part is provided with a fixed threaded rod, a metal plug and a connecting block. The metal plug is pushed toward each other, and the metal plug drives the connecting block to be inserted into the top surface of the connecting metal plate for threaded fixation, so that the locking assembly can be replaced without spending a lot of time on disassembly, without wasting resources, and can increase the service life of the device.

[0016] 2. The wire harness core waterproof connecting plastic part is provided with a hexagonal bolt, a plastic connector and a metal plug. The hexagonal bolt rotates at the lower end of the plastic connector, thereby being able to thread the plastic connector and the metal plug together. The position of the plastic connector can be adjusted and is suitable for different positions, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0018] Figure 2 For this utility model Figure 1 A partial enlarged schematic diagram of the structure at center A;

[0019] Figure 3 This is a top view schematic diagram of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the cross section at AA in the middle;

[0021] Figure 5 For this utility model Figure 4 A schematic diagram of the partial enlargement of the structure at point B in the middle.

[0022] In the figure: 1. Connecting device; 11. Connecting block; 12. Fixed threaded rod; 13. Locking assembly; 131. Connecting ring 1; 132. Limiting plug; 133. Plastic connector; 134. Coil spring; 135. Limiting threaded rod; 136. Connecting ring 2; 137. Hexagonal bolt; 14. Metal plug; 15. Rotating connector; 2. Waterproof housing; 3. Connecting metal plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 , the utility model provides the following technical solutions:

[0025] A wire harness core waterproof connecting plastic part comprises a waterproof shell 2 and a connecting metal plate 3. A connecting device 1 is installed on the upper end of the waterproof shell 2, and the connecting metal plate 3 is installed on the inner wall surface of the waterproof shell 2.

[0026] The connecting device 1 includes a connecting block 11, a fixed threaded rod 12, a locking assembly 13, a metal plug block 14 and a rotating connecting piece 15. The fixed threaded rod 12 is movably connected to the inner wall surface of the metal plug block 14, and the metal plug block 14 is movably connected to the upper inner wall surface of the waterproof shell 2. The fixed threaded rod 12 is fixedly connected to the top surface of the connecting metal plate 3, pushing the metal plug block 14 to move downward. The metal plug block 14 is inserted into the inner wall surface of the waterproof shell 2, and the metal plug block 14 slides along the threaded end surface of the fixed threaded rod 12, so that the metal plug block 14 and the connecting block 11 can be threadedly fixed. The fixed threaded rod 12 is threadedly connected to the lower end of the connecting block 11, the connecting block 11 is installed at the lower end of the locking assembly 13, and the rotating connecting piece 15 is installed at the upper end of the connecting block 11.

[0027] The locking assembly 13 includes a connecting ring 131, a limiting plug 132, a plastic connector 133, a coil spring 134, a limiting threaded rod 135, a connecting ring 2 136 and a hexagonal bolt 137. The hexagonal bolt 137 is threadedly connected to the lower end of the plastic connector 133. The limiting plug 132 is plugged into the rear end of the plastic connector 133. The rotating connector 15 is installed at the lower end of the plastic connector 133. The hexagonal bolt 137 is threadedly connected to the outward end of the plastic connector 133. The hexagonal bolt 137 is threadedly connected to the outward end of the plastic connector 133. The top surface of the connecting block 11 is movably connected, and the hexagonal bolt 137 rotates at the lower end of the plastic connecting piece 133, which can be threadedly fixed between the plastic connecting piece 133 and the connecting block 11, so that the position of the plastic connecting piece 133 can be determined. The limiting threaded rod 135 is fixedly connected to the back of the limiting plug 132, and the coil spring 134 is fixedly connected to the back of the limiting plug 132. The coil spring 134 is fixedly connected to the front of the limiting plug 132. The connecting ring 2 136 is located at the limiting plug 132. At the rear, the connecting ring 131 is inserted into the middle position of the plastic connecting piece 133, and the plastic connecting piece 133 is movably connected to the top surface of the connecting block 11. The connecting block 11 is threadedly connected to the top surface of the metal plug 14. The metal plug 14 is movably connected to the top surface of the connecting metal plate 3. The nut rotates on the threaded end surface of the fixed threaded rod 12. The fixed threaded rod 12 can threadably fix the connecting metal plate 3, the connecting block 11 and the metal plug 14, making it convenient to replace the plastic connecting piece 133. The second connecting ring 136 is inserted into the middle position of the plastic connector 133, and the second connecting ring 136 is movably connected to the rear end of the limiting threaded rod 135. The second connecting ring 136 is fixedly connected to the back of the coil spring 134. The second connecting ring 136 is threadedly connected to the front of the first connecting ring 131. The first connecting ring 131 and the second connecting ring 136 are threadedly connected, so that the first connecting ring 131, the second connecting ring 136 and the plastic connector 133 can be threadedly fixed, and the wire harness core can be clamped and fixed.

[0028] When in use, push the metal plug 14 downward and insert it into the interior of the waterproof housing 2 so that the lower end of the metal plug 14 is connected to the upper end of the connecting metal plate 3, and the metal plug 14 can slide on the threaded end surface of the fixed threaded rod 12.

[0029] The connecting block 11 drives the rotating connecting member 15 to move downward, and the rotating connecting member 15 drives the locking assembly 13 to move downward, so that the connecting block 11 can move downward along the threaded end surface of the fixed threaded rod 12, allowing the bottom end surface of the connecting block 11 to be connected with the top end surface of the metal plug block 14.

[0030] Turn the nut, which rotates on the threaded end surface of the fixed threaded rod 12, and the nut can threadably fix the connecting metal plate 3, the fixed threaded rod 12, the connecting block 11 and the metal insert 14, and determine the position of the locking assembly 13.

[0031] Push connecting ring 1 131 and connecting ring 2 136 to clamp the wire core, then push connecting ring 131 and connecting ring 2 136 forward, and insert connecting ring 2 136 and connecting ring 1 131 into the middle position of the locking assembly 13, so that the front of connecting ring 131 is connected to the inner wall surface of the plastic connector 133.

[0032] The coil spring 134 is pushed to start compression, and then the limiting plug 132 is pushed to be inserted into the rear end of the plastic connector 133, so that the plastic connector 133 drives the limiting threaded rod 135 to be inserted into the outward end of the connecting ring 1 131 and the connecting ring 2 136.

[0033] By turning the nut, the nut rotates on the threaded end surface of the limiting threaded rod 135, thereby locking and fixing the connecting ring 131, the connecting ring 2 136 and the plastic connecting piece 133, thereby clamping and fixing the wire harness core.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof plastic connection part for a wire harness core, comprising a waterproof housing (2) and a connecting metal plate (3), characterized in that: A connecting device (1) is installed at the upper end of the waterproof housing (2), and the connecting metal plate (3) is installed on the inner wall surface of the waterproof housing (2); The connecting device (1) comprises a connecting block (11), a fixed threaded rod (12), a locking assembly (13), a metal plug block (14) and a rotating connecting piece (15); the fixed threaded rod (12) is movably connected to the inner wall surface of the metal plug block (14); the fixed threaded rod (12) is threadedly connected to the lower end of the connecting block (11); the connecting block (11) is mounted on the lower end of the locking assembly (13); and the rotating connecting piece (15) is mounted on the upper end of the connecting block (11).

2. The wire harness core waterproof connection plastic component according to claim 1, characterized in that: The locking assembly (13) comprises a connecting ring (131), a limiting plug (132), a plastic connector (133), a coil spring (134), a limiting threaded rod (135), a connecting ring (136) and a hexagonal bolt (137), wherein the hexagonal bolt (137) is threadedly connected to the lower end of the plastic connector (133), the limiting plug (132) is plugged into the rear end of the plastic connector (133), the limiting threaded rod (135) is fixedly connected to the back side of the limiting plug (132), the coil spring (134) is fixedly connected to the back side of the limiting plug (132), the connecting ring (131) is plugged into the middle position of the plastic connector (133), and the connecting ring (136) is plugged into the middle position of the plastic connector (133).

3. The wire harness core waterproof connection plastic component according to claim 2, characterized in that: The rotating connector (15) is installed on the lower end of the plastic connector (133), the hexagonal bolt (137) is threadedly connected to the outward end of the plastic connector (133), and the hexagonal bolt (137) is movably connected to the top surface of the connecting block (11).

4. The wire harness core waterproof connection plastic component according to claim 3, characterized in that: The plastic connector (133) is movably connected to the top surface of the connecting block (11), the connecting block (11) is threadedly connected to the top surface of the metal plug block (14), and the metal plug block (14) is movably connected to the top surface of the connecting metal plate (3).

5. The wire harness core waterproof connection plastic component according to claim 4, characterized in that: The metal plug (14) is movably connected to the upper inner wall surface of the waterproof housing (2), and the fixed threaded rod (12) is fixedly connected to the top end surface of the connecting metal plate (3).

6. The wire harness core waterproof connection plastic component according to claim 5, characterized in that: The second connecting ring (136) is movably connected to the rear end of the limiting threaded rod (135), the second connecting ring (136) is fixedly connected to the back side of the coil spring (134), and the second connecting ring (136) is threadedly connected to the front side of the first connecting ring (131).

7. The wire harness core waterproof connection plastic component according to claim 6, characterized in that: The coil spring (134) is fixedly connected to the front side of the limiting plug (132), and the second connecting ring (136) is located behind the limiting plug (132).

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