Waterproof joint

Abstract

The utility model relates to a waterproof joint, comprising two housings and a conductive assembly, a sealing cavity used for placing the conductive assembly is formed between the two housings, the conductive assembly comprises a wire holder and a plurality of wiring terminals, the two housings are respectively provided with a threading hole communicated with the sealing cavity, and the wiring terminals are arranged in the sealing cavity. A group of clamping assemblies for clamping a cable are respectively arranged in the two shells corresponding to the threading holes, each clamping assembly comprises a clamping sleeve arranged in the shell and a sealing sleeve arranged in the clamping sleeve, the sealing sleeve is provided with a sealing hole for the cable to pass through, and the sealing holes are communicated with the clamping sleeves. And a plurality of clamping claws which are distributed in an annular array and are clamped on the cable are arranged at one end, facing the threading hole, of the clamping sleeve. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, reliable connection and good waterproof performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waterproof joint. BACKGROUND

[0002] The cable waterproof joint is a kind of connecting device frequently used in power system. It is mainly applied to outdoor products, large remote control machines, and the equipment not on the body in outdoor control system. For example, cable waterproof joints are used in chemical plants, power plants, power supply stations, base stations of telecommunication network and factories with high degree of automation. The existing waterproof joint includes a shell, a conductive assembly arranged in the shell and connected with the cable. The structure of the existing waterproof joint is unreasonable. When the cable is subjected to tension, the waterproof joint and the cable are prone to loosening and disengagement, and the connection reliability is poor. Moreover, the waterproof joint has the defects of complex structure design, inconvenient assembly and unreliable waterproof performance. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides a waterproof joint with simple structure, stable and reliable performance, convenient assembly, reliable connection and good waterproof performance.

[0004] To achieve the above-mentioned purpose, the utility model adopts a waterproof joint, which includes two shells and a conductive assembly. A sealed cavity for placing the conductive assembly is formed between the two shells. The conductive assembly includes a terminal block arranged in the sealed cavity and a plurality of terminal posts arranged on the terminal block. The two shells are respectively provided with a threading hole communicating with the sealed cavity. A set of clamping assemblies for clamping the cable are respectively arranged in the two shells corresponding to the threading holes. The clamping assembly includes a clamping sleeve arranged in the shell and a sealing sleeve arranged in the clamping sleeve. The sealing sleeve is provided with a sealing hole through which the cable can pass. A plurality of clamping claws in annular array are respectively arranged on one end of the clamping sleeve facing the threading hole and clamped on the cable.

[0005] The beneficial effects of the above structure are as follows: the clamping assemblies for clamping the cable are arranged in the two shells. The clamping sleeve of the clamping assembly can lock the cable. When the cable is subjected to tension, the connection between the cable and the conductive assembly can be ensured to be more reliable, and the cable and the conductive assembly are not prone to loosening. Moreover, the sealing sleeve of the clamping assembly is wrapped on the cable, and the waterproof performance is better. The conductive assembly adopts modular structure design, so that the modular assembly of the conductive assembly and the two shells can be realized, and the assembly efficiency is higher. Therefore, the waterproof joint has the advantages of simple structure, stable and reliable performance, convenient assembly, reliable connection and good waterproof performance.

[0006] Specifically, the connector includes a base body and a pressure plate disposed on the base body. The base body has multiple wiring slots, and multiple terminals are disposed within these slots. The pressure plate has multiple sleeve portions for cables to pass through. One end of each sleeve is inserted into a wiring slot and abuts against a terminal, forming a limiting fit between the terminals and the sleeve portions. The pressure plate presses the terminals firmly into the base body, facilitating the assembly of the connector. Furthermore, the connector employs a modular design, further facilitating the assembly of the waterproof connector.

[0007] Specifically, the terminal block includes a terminal post disposed within a terminal slot, a clamping tab disposed within a terminal hole on the terminal post for clamping the cable, and a terminal screw disposed on the terminal post for driving the clamping tab. When the terminal screw rotates, the clamping tab moves with the terminal screw and clamps the cable. The terminal screw, through the clamping tab, clamps the cable into the terminal hole of the terminal post, thereby ensuring a more reliable connection between the terminal block and the cable.

[0008] Specifically, the pressure plate has a snap-fit ​​post in the middle that mates with the base body, and the base body has a snap-fit ​​hole that mates with the snap-fit ​​post. The snap-fit ​​post is inserted into the snap-fit ​​hole, forming a snap-fit ​​connection between the base body and the pressure plate. The pressure plate and the base body are assembled using a snap-fit ​​connection, which ensures the assembly of the pressure plate and the base body and makes assembly more convenient.

[0009] Specifically, the pressure plate is provided with isolation strips separating the multiple sleeve sections. The isolation strips serve to isolate and separate the multiple cables inserted within the multiple sleeve sections, thereby ensuring the reliable operation of the waterproof connector.

[0010] Specifically, the two housings are connected by a threaded structure, with one housing having an external thread at one end and the other housing having an internal thread at one end that connects to the external thread. This threaded connection facilitates the assembly of the first and second housings, making assembly more convenient.

[0011] Specifically, a sealing ring is provided on the external thread. After the two housings are tightened, the sealing ring is in a sealing fit with the two housings. The sealing ring enhances the sealing performance at the connection between the two housings, thereby improving the waterproof performance of the waterproof joint. Attached Figure Description

[0012] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0013] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0014] Figure 3The utility model discloses an embodiment exploded view.

[0015] Figure 4 The utility model discloses an embodiment internal structure diagram of conductive assembly.

[0016] Figure 5 The utility model discloses an embodiment perspective view of pressing plate. Specific implementation

[0017] As Figures 1 to 5 The utility model discloses an embodiment waterproof joint, including two casing 10, conductive assembly 20, the two casing 10 between formation has the sealed cavity 100 for placing conductive assembly 20, the conductive assembly 20 including setting in sealed cavity 100's terminal block 21, respectively setting on terminal block 21's multiple terminal 22, the two casing 10 on respectively be provided with and sealed cavity 100 is linked together and passes the wire hole 101, the two casing 10 in respectively be provided with a group for clamping cable's clamping assembly 30 at the place of passing the wire hole 101, the clamping assembly 30 includes setting in casing 10's clamping sleeve 31, setting in clamping sleeve 31's sealing sleeve 32, the sealing sleeve 32 on be provided with the sealed hole 321 that can pass through cable, the clamping sleeve 31 towards the wire hole 101 one end on respectively be provided with and be arranged in annular array distribution and hold on multiple clamping claw 311 on cable. Terminal block 21 includes seat body 211, setting on seat body 211's pressing plate 212, the seat body 21 on respectively be provided with multiple terminal slots 2111, multiple terminal 22 respectively setting in multiple terminal slots 2111, the pressing plate 212 on respectively be provided with multiple sleeve portions 2121 that can pass through cable, multiple sleeve 2121 one end respectively in multiple terminal slots 2111 and resist the contact on multiple terminal 22, and constitute multiple terminal 22 and multiple sleeve portions 2121's limit cooperation. Through pressing plate, multiple terminal is pressed in seat body, to facilitate the assembly of the terminal block, and the terminal block adopts modular structure design, to facilitate the assembly of the waterproof joint. Terminal 22 includes setting in terminal slot 2111's terminal post 221, setting in terminal post 221's terminal hole 2211 and be used for pressing cable's press line piece 222, setting on terminal post 221 and be used for driving press line piece 222 action's terminal screw 223, when terminal screw 223 rotates, press line piece 222 with terminal screw 223 action and press tightly on cable. Terminal screw passes through press line piece and press tightly in terminal post's terminal hole, so that the connection of terminal and cable can be more reliable.

[0018] As Figure 2 , 3The middle part of the pressing plate 212 is provided with a clamping column 2122 matched with the seat body 211, the seat body 211 is provided with a clamping hole 2112 matched with the clamping column 2122, the clamping column 2122 is inserted into the clamping hole 2112, and the clamping column 2122 and the clamping hole 2112 form the clamping matching of the seat body 211 and the pressing plate 212. The pressing plate and the seat body are assembled in the clamping matching mode, so that the assembly of the pressing plate and the seat body is guaranteed, and the assembly is more convenient. The pressing plate 212 is provided with isolation protrusions 2123 respectively and separately arranged between the plurality of sleeve parts 2121. The isolation protrusions can play an isolation role, and can separate the plurality of cables inserted into the plurality of sleeve parts, so that the working reliability of the waterproof joint is guaranteed. The two housings 10 are connected through a threaded structure, one end of one of the housings 10 is provided with an external thread 102, and one end of the other housing 10 is provided with an internal thread 103 connected with the external thread 102. The two housings are connected through threads, so that the assembly of the first housing and the second housing is facilitated, and the assembly is more convenient. The external thread 102 is provided with a sealing ring 11, and the sealing ring 11 is sealingly matched with the two housings 10 after the two housings 10 are screwed. The sealing ring can enhance the sealing performance of the connection of the two housings, so as to improve the waterproof performance of the waterproof joint.

[0019] A clamping assembly for clamping the cable is arranged in the two housings, the clamping sleeve of the clamping assembly can lock the cable, so that the connection between the cable and the conductive assembly is more reliable when the cable is subjected to a pulling force, and the cable and the conductive assembly are not easy to be loosened. The sealing sleeve of the clamping assembly is wrapped on the cable, and the waterproof performance is better. The conductive assembly adopts a modular structure design, so that the modular assembly of the conductive assembly and the two housings is realized, and the assembly efficiency is higher. Therefore, the waterproof joint has the advantages of simple structure, stable and reliable performance, convenient assembly, reliable connection and good waterproof performance.

Claims

1. A waterproof connector, characterized in that: The device includes two housings and a conductive component. A sealed cavity for housing the conductive component is formed between the two housings. The conductive component includes a terminal block disposed within the sealed cavity and multiple terminals disposed on the terminal block. Each of the two housings has a through hole communicating with the sealed cavity. A set of clamping components for clamping cables is disposed in each of the two housings corresponding to the through hole. The clamping components include a clamping sleeve disposed within the housing and a sealing sleeve disposed within the clamping sleeve. The sealing sleeve has a sealing hole for the cable to pass through. Multiple clamping claws arranged in a ring array and clamping the cable are disposed on the end of the clamping sleeve facing the through hole.

2. The waterproof connector according to claim 1, characterized in that: The terminal block includes a base body and a pressure plate disposed on the base body. The base body is provided with a plurality of wiring grooves, and a plurality of wiring terminals are disposed in the plurality of wiring grooves. The pressure plate is provided with a plurality of sleeve portions for cables to pass through. One end of each of the plurality of sleeves is inserted into the plurality of wiring grooves and abuts against the plurality of wiring terminals, thereby forming a limiting fit between the plurality of wiring terminals and the plurality of sleeve portions.

3. The waterproof connector according to claim 2, characterized in that: The terminal block includes a terminal post disposed in a terminal slot, a clamping plate disposed in a terminal hole of the terminal post for clamping the cable, and a terminal screw disposed on the terminal post for driving the clamping plate to move. When the terminal screw rotates, the clamping plate moves with the terminal screw and clamps onto the cable.

4. The waterproof connector according to claim 2 or 3, characterized in that: The pressure plate has a locking post in the middle that mates with the base body. The base body has a locking hole that mates with the locking post. The locking post is inserted into the locking hole, thus forming a locking engagement between the base body and the pressure plate.

5. The waterproof connector according to claim 2 or 3, characterized in that: The pressure plate is provided with isolation strips that separate multiple sleeve sections.

6. The waterproof connector according to claim 1 or 2, characterized in that: The two housings are connected by a threaded structure. One housing has an external thread at one end, and the other housing has an internal thread at one end that connects to the external thread.

7. The waterproof connector according to claim 6, characterized in that: A sealing ring is provided on the external thread. After the two housings are tightened, the sealing ring is sealed to the two housings.

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