CN204668621U - Mining explosion-isolating low-voltage cable connector - Google Patents

Abstract

The utility model discloses a mine explosion-proof low-voltage cable connector, which comprises: a plug and a square socket, the plug includes a straight pipe and a tail clamp, and a plug shell is sleeved on the inner side of the front end of the straight pipe. A pin insulator is installed in the plug housing, and a pin assembly is fixed in the pin insulator; the pin insulator and the plug housing are sealed and fixed by the first O-shaped sealing ring and the first insulating pressure plate; the straight A connecting ring is sleeved on the outside of the front end of the pipe, and the connection ring and the plug housing are sealed by an interface sealing ring; A flat washer is provided; the square socket includes a square disc housing, a second insulating pressing plate and a socket insulator are fixedly installed in the square disc housing, and a jack member is fixedly installed in the second insulating pressing plate. Compared with the prior art, the utility model has the advantages of simple structure, convenient operation, high reliability and good stability.

Description

Mining Flameproof Low Voltage Cable Connector

Technical field:

The utility model relates to a connector, in particular to a mine-used explosion-proof low-voltage cable connector.

Background technique:

The existing high-current mine connectors mostly adopt the direct connection method of the pins. After repeated use, the direct holding force between the pins and the sockets decreases, and they are easy to loosen. During the power-on operation, the temperature of the connectors rises too high. Moreover, if the plug and socket are not matched in place, it is easy to cause discharge and fire at the plugged part. If the connector is damaged, it is easy to cause the cable insulation phase failure or short circuit accident.

Invention content:

Therefore, the purpose of the utility model is to provide a mine flameproof low-voltage cable connector with reasonable and simple structure, convenient operation and high reliability.

In order to achieve the above object, the utility model mainly adopts the following technical solutions:

A mine explosion-proof low-voltage cable connector, comprising: a plug and a square socket, the plug includes a straight pipe and a tail clip, the front end of the straight pipe is sleeved with a plug housing, and a plug housing is installed in the plug housing. The pin insulator, the pin assembly is fixed in the pin insulator; the pin insulator and the plug housing are sealed and fixed by the first O-shaped sealing ring and the first insulating pressure plate; the outer front end of the straight pipe is covered A connecting ring is placed, and the connection ring and the plug housing are sealed by an interface sealing ring; the inner side of the rear end of the straight pipe is sleeved with a sealing body, and a flat gasket is arranged between the sealing body and the end clip; The square socket includes a square disc shell, a second insulating pressing plate and a socket insulator are fixedly installed in the square disc housing, and a jack member is fixedly installed in the second insulating pressing plate.

Further, the plug housing and the first insulating pressing plate are fixed by a first clamping spring.

Further, the plug housing and the straight pipe are sealed by a second O-ring.

Further, the plug housing and the straight pipe are fixed by locking nuts and set screws.

Further, a pressure plate is also fixedly installed on the tail clip.

Further, the square disc casing is fixedly connected to the second insulating pressure plate through a second clamp spring.

Further, the fourth O-ring sealing ring is used to seal and fix the square disk housing and the socket insulator.

The plug housing of the connector socket of the utility model adopts fast screw connection, and the pin assembly is connected with the socket, which can carry a large current and has low temperature rise and plugging force, and the tail of the terminal adopts a fast crimping connection method, which is convenient for customers. It is easy to install and use, and it is flexible and fast to handle cable faults, reducing the impact on production; after the plug and socket are mated, the anti-loosening screw is used to provide secondary locking to increase reliability. Compared with the prior art, the utility model has the advantages of simple structure, convenient operation, high reliability and good stability.

Description of drawings:

Fig. 1 is the sectional view of the connection state of plug and socket of the present utility model;

Fig. 2 is the cross-sectional structure schematic diagram of the utility model plug;

Fig. 3 is a schematic cross-sectional structure diagram of the socket of the present invention.

Instructions in the figure: plug 100, pin assembly 101, plug housing 102, pin insulator 103, connecting ring 104, first O-ring 105, interface sealing ring 106, lock nut 107, set screw 108 , the first insulating pressure plate 109, the first circlip 110, the second O-ring 111, the straight pipe 112, the sealing body 113, the flat washer 114, the tail clamp 115, the screw 116, the pressure plate 117, the square socket 200, the socket 201, the second insulating pressure plate 202, the second circlip 203, the square shell 204, the socket insulator 205, the third O-ring 206, and the fourth O-ring 207.

Detailed ways:

In order to illustrate the idea and purpose of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

For the existing high-current mine connectors, repeated use is prone to decrease the direct holding force between the pin and the socket, and it is easy to loosen. In order to solve the problem of electric discharge at the site and damage to the connector, this embodiment provides a mine-used flameproof low-voltage cable connector with a reasonable and simple structure, convenient operation and high reliability.

Please refer to Figures 1 to 3, Figure 1 is a cross-sectional view of the connection state of the plug and socket of the present invention; Figure 2 is a schematic cross-sectional structure of the plug of the present invention; Figure 3 is a schematic cross-sectional structure of the socket of the present invention. The cable connector provided in this embodiment mainly includes a plug 100 and a square socket 200 .

Wherein the plug 100 includes a straight pipe 112 and a tail clamp 115, the inside of the front end of the straight pipe 112 is sleeved with a plug housing 102, and a pin insulator 103 is installed in the plug housing 102, and the pin insulator 103 is The pin assembly 101 is fixed; the plug housing 102 and the straight pipe 112 are sealed by a second O-ring 111 . The plug housing 102 and the straight pipe 112 are fixed by locking nuts 107 and set screws 108 .

The pin insulator 103 and the plug housing 102 are sealed and fixed by a first O-ring 105 and a first insulating pressure plate 109 . The plug housing 102 is fixed to the first insulating pressing plate 109 by a first retaining spring 110 .

A connecting ring 104 is sleeved outside the front end of the straight pipe 112, and the connection ring 104 and the plug housing 102 are sealed by an interface sealing ring 106; A flat washer 114 is disposed between the sealing wire body 113 and the tail clamp 115 .

A pressing plate 117 is also fixedly installed on the tail clip 115 , and the pressing plate 117 is fixedly installed on the tail clip 115 by screws 116 .

The square socket 200 includes a square shell 204 , a second insulating press plate 202 and a socket insulator 205 are fixedly installed in the square shell 204 , and a socket member 201 is fixedly installed in the second insulating press plate 202 .

The square disk housing 204 is fixedly connected to the second insulating pressing plate 202 through the second clamp spring 203 .

The fourth O-ring 207 is sealed and fixed between the square disk housing 204 and the socket insulator 205 .

The square disc housing 204 is provided with an annular boss, and one side of the boss is provided with a concave ring, and the third O-ring 206 is fixedly installed in the concave ring, and the square disc housing 204 is fixedly installed in the case On the panel, it is sealed with the chassis panel by the third O-ring 206 .

The plug end shell of the utility model adds a loosening screw to provide secondary locking; the power supply terminal of the connector adopts a welded RADSOK terminal, which can meet the requirements of small volume and large current, and can ensure that the temperature rise is within 40°C, and the terminal contact piece is stable. The insertion force is small, and the electrical performance is more stable. The crimping line at the end of the pin socket of the terminal contact piece adopts the bolt locking crimping method, which can be quickly installed and disassembled; and the restraining parts are all equipped with a release device to increase reliability.

The above is a detailed introduction to the mine flameproof low-voltage cable connector provided by the utility model. In this paper, specific examples are used to illustrate the structural principle and implementation of the utility model. The above examples are only used to help Understand the method of the utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation and scope of application. In summary, this description The content should not be construed as limiting the utility model.

Claims (7)

1. A mine flameproof low-voltage cable connector, characterized in that it comprises: a plug (100) and a square socket (200), and the plug (100) includes a straight pipe (112) and a tail clip (115), The inner side of the front end of the straight pipe (112) is sleeved with a plug housing (102), and a pin insulator (103) is installed in the plug housing (102), and a pin insulator (103) is fixed inside the pin insulator (103). The pin assembly (101); the pin insulator (103) and the plug housing (102) are sealed and fixed by the first O-ring (105) and the first insulating pressure plate (109); the straight pipe (112 ) is sleeved with a connecting ring (104) outside the front end, which is sealed with the plug housing (102) by an interface sealing ring (106); the inside of the rear end of the straight pipe (112) is sleeved There is a sealing body (113), and a flat washer (114) is arranged between the sealing body (113) and the tail clip (115); the square socket (200) includes a square shell (204), the square A second insulating pressing plate (202) and a socket insulator (205) are fixedly installed in the disk casing (204), and an inserting hole member (201) is fixedly installed in the second insulating pressing plate (202). 2. The mine flameproof low-voltage cable connector according to claim 1, characterized in that, the plug housing (102) and the first insulating pressure plate (109) are fixed by a first circlip (110) . 3. The mine flameproof low-voltage cable connector according to claim 1, characterized in that, the plug housing (102) and the straight pipe (112) are sealed by a second O-ring (111) . 4. The mine flameproof low-voltage cable connector according to claim 3, characterized in that, the plug housing (102) and the straight pipe (112) are connected by a locking nut (107) and a tight Screws (108) are fixed. 5. The mine flameproof low-voltage cable connector according to claim 1, characterized in that, a pressure plate (117) is fixedly installed on the tail clip (115). 6. The mine flameproof low-voltage cable connector according to claim 1, characterized in that, a second clamp spring (203) is passed between the square plate housing (204) and the second insulating pressure plate (202) Fixed connection. 7. The mine flameproof low-voltage cable connector according to claim 1, characterized in that, the fourth O-ring (207) is passed between the square plate housing (204) and the jack insulator (205). ) sealed and fixed.