CN212750698U

CN212750698U - Mining explosion-proof switch

Info

Publication number: CN212750698U
Application number: CN202022001644.6U
Authority: CN
Inventors: 赵瑞国; 李眉全; 李智慧; 李春艳
Original assignee: Shanxi Xuanyun Technology Co ltd
Current assignee: Shanxi Xuanyun Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-03-19
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to the technical field of electrical switches, in particular to a mining explosion-proof switch, which comprises an upper box body, a lower box body, sealing grooves, mounting holes, a mounting boss, a rubber sleeve, a working mechanism and a mounting mechanism, wherein the bottom of the upper box body and the top of the lower box body are both provided with the sealing grooves, the inside of the upper box body and the inside of the lower box body are both provided with the mounting holes, the top of the upper box body is welded with the mounting boss, the surface of the mounting boss is sleeved with the rubber sleeve, the inside of the upper box body is respectively provided with the working mechanism and the mounting mechanism, the utility model provides the mining explosion-proof switch, a push rod pushes a connecting rod to touch the switch, the function of preventing the switch from being touched by mistake can be realized in the process, a worker can not touch the switch by accident and can not start a machine, the occurrence of accidents is reduced, a sealing outer ring and, the combustible and explosive gas is prevented from entering, and the safety of workers is guaranteed.

Description

Mining explosion-proof switch

Technical Field

The utility model relates to an electrical switch technical field specifically is a mining explosion-proof switch.

Background

The term switch is to be interpreted as open and closed, which also refers to an electrical component that opens a circuit, interrupts a current flow, or allows a current to flow to another circuit, and the "closing" of a contact means that the electrical contact is conducting, allowing a current to flow; an "open" switch means that the electrical contacts are not conductive to form an open circuit and do not allow current to flow, whereas an explosion-proof switch, as the name implies, can be used in a harsh, relatively dangerous explosion environment, such as: explosion-proof switches are required in the coal mine industry, paint or ink manufacturers, wood processing plants, cement plants, shipping and sewage treatment.

Most explosion-proof switches in the existing market are not significant in sealing effect, are used in mine holes full of inflammable and explosive gases, are easy to enter the switch, and when the switch is opened, gas can be ignited by sparks to generate explosion, so that the safety of workers is threatened, property loss can be caused, the existing explosion-proof switches are inconvenient to install, time and labor are wasted, the workers can touch the switch carelessly sometimes, the machine is started, and accidents can be caused. In view of this, we propose a mining explosion-proof switch.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining explosion-proof switch to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a mining explosion-proof switch, includes the last box, there is lower box bottom of going up the box through bolted connection, the seal groove has all been seted up at the bottom of going up the box and the top of box down, the mounting hole has all been seted up to the inside of going up box and lower box, the top welding of going up the box has the installation boss, the rubber sleeve has been cup jointed on the surface of installation boss, the inside of going up the box is provided with operating device and installation mechanism respectively.

Preferably, the inner wall joint of seal groove has sealed outer lane, the inner wall joint of sealed outer lane has expanding spring, expanding spring's bottom joint has sealed inner circle.

Preferably, the operating mechanism is including the push rod, the inside of push rod is pegged graft and is had the connecting rod, the diapire welding of box has fixed cover down, the spacing groove has been seted up on the surface of fixed cover, the inner wall of spacing groove is provided with the switch, the diapire welding of box has the telescopic link down, reset spring has been cup jointed on the surface of telescopic link, the top welding of telescopic link has the reset ring.

Preferably, the surface sliding connection of reset ring is at the inner wall of fixed cover, reset spring's top and reset ring's bottom contact each other, the surface sliding connection of connecting rod is at the inner wall of spacing groove, the surface sliding connection of push rod is at the inner wall of rubber sleeve.

Preferably, the installation mechanism comprises an upper insulating ring, a lower insulating ring is clamped at the bottom of the upper insulating ring, a clamping groove is formed in the inner wall of the upper box body, a positioning pin is inserted into the bottom of the upper box body, a positioning hole is formed in the top of the lower box body, and four clamping pieces are welded on the inner wall of the lower box body.

Preferably, the number of the positioning pins and the positioning holes is two, the central lines of the lower box body of the two positioning pins and the positioning holes are symmetrically distributed, the bottom of the lower insulating ring is welded on the bottom wall of the lower box body, the surface of the clamping piece is clamped on the inner wall of the clamping groove, and the surface of the positioning pin is slidably connected on the inner wall of the positioning hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this mining explosion-proof switch, when using, the push rod promotes the connecting rod downstream, the connecting rod promotes reset ring downstream, it is rotatory to make the connecting rod select again, reset spring bottom reset ring drives the connecting rod rebound and makes the connecting rod touch the switch, thereby the function that prevents the mistake and touch of switch has been realized, the workman is touched the switch carelessly and also can not start the machine, accident's emergence has been reduced, during the installation, sealed outer lane and sealed inner circle pass through expanding spring's effect, laminating seal groove that can be better, thereby make explosion-proof switch's leakproofness one deck more, prevent inflammable and explosive gas's entering, workman's safety has been ensured.

2. This mining explosion-proof switch, two locating pins inject two locating holes in, make box and lower box more conveniently install, and the joint spare of box down can block in the draw-in groove of box when the installation, make more compact of its installation, the leakproofness is better, and go up the installation between insulating ring and the lower insulating ring, can make the electric current can not flow, play the effect of two layers of protection.

Drawings

FIG. 1 is a half sectional view of the overall structure of the present invention;

fig. 2 is a schematic view of the sealing ring of the present invention;

FIG. 3 is a schematic view of the working mechanism of the present invention;

FIG. 4 is a half sectional view of the upper case structure of the present invention;

fig. 5 is a semi-sectional view of the lower case structure of the present invention.

In the figure: 1. an upper box body; 2. a working mechanism; 3. a rubber sleeve; 4. mounting a boss; 5. an installation mechanism; 6. sealing the outer ring; 7. mounting holes; 8. a lower box body; 9. a sealing groove; 21. a push rod; 22. a connecting rod; 23. fixing a sleeve; 24. a reset ring; 25. a switch; 26. a return spring; 27. a telescopic rod; 28. a limiting groove; 51. an upper insulating ring; 52. a lower insulating ring; 53. a card slot; 54. positioning pins; 55. positioning holes; 56. a clamping piece; 61. a tension spring; 62. and sealing the inner ring.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1-4, the mining explosion-proof switch comprises an upper box body 1, wherein the bottom of the upper box body 1 is connected with a lower box body 8 through a bolt, seal grooves 9 are formed in the bottom of the upper box body 1 and the top of the lower box body 8, mounting holes 7 are formed in the upper box body 1 and the lower box body 8, a mounting boss 4 is welded to the top of the upper box body 1, a rubber sleeve 3 is sleeved on the surface of the mounting boss 4, and a working mechanism 2 and a mounting mechanism 5 are arranged in the upper box body 1 respectively.

In this embodiment, the inner wall joint of seal groove 9 has sealed outer lane 6, and the inner wall joint of sealed outer lane 6 has expanding spring 61, and expanding spring 61's bottom joint has sealed inner circle 62, and sealed outer lane 6 and sealed inner circle 62 pass through expanding spring 61 and adjust by oneself under the effort of installation, make laminating seal groove 9 that the sealing washer can be better.

In addition, operating device 2 is including push rod 21, the inside grafting of push rod 21 has connecting rod 22, the diapire welding of lower box 8 has fixed cover 23, spacing groove 28 has been seted up on the surface of fixed cover 23, the inner wall of spacing groove 28 is provided with switch 25, the diapire welding of lower box 8 has telescopic link 27, reset spring 26 has been cup jointed on the surface of telescopic link 27, the top welding of telescopic link 27 has reset ring 24, reset spring 26 drives connecting rod 22 rebound and makes connecting rod 22 touch switch 25, this in-process can play the effect of preventing the mistake and touching to it.

Besides, the surface of the reset ring 24 is slidably connected to the inner wall of the fixed sleeve 23, the top of the reset spring 26 is in contact with the bottom of the reset ring 24, the surface of the connecting rod 22 is slidably connected to the inner wall of the limiting groove 28, the surface of the push rod 21 is slidably connected to the inner wall of the rubber sleeve 3, and the rubber sleeve 3 can play a role in sealing, so that gas cannot enter the device.

It is worth to say that, when using, press push rod 21 and make it promote connecting rod 22 to move down, connecting rod 22 promotes reset ring 24 and moves down, and rotatory push rod 21 makes connecting rod 22 select the rotation again, and reset spring 26 drive connecting rod 22 that reset ring 24 bottom moved up makes connecting rod 22 touch switch 25 to the function of preventing the mistake of switch 25 touches has been realized, and the workman touches switch 25 carelessly and can not start the machine yet, has reduced the emergence of accident.

Example two:

as shown in fig. 4 to 5, the mounting mechanism 5 includes an upper insulating ring 51, a lower insulating ring 52 is clamped at the bottom of the upper insulating ring 51, a clamping groove 53 is formed in the inner wall of the upper case 1, a positioning pin 54 is inserted into the bottom of the upper case 1, a positioning hole 55 is formed in the top of the lower case 8, four clamping members 56 are welded on the inner wall of the lower case 8, and the upper insulating ring 51 and the lower insulating ring 52 are mounted so that current does not flow out and a two-layer protection effect is achieved.

In this embodiment, the number of the positioning pins 54 and the positioning holes 55 is two, the central line of the lower case 8 of the two positioning pins 54 and the positioning holes 55 is symmetrically distributed about the axis of symmetry, the bottom of the lower insulating ring 52 is welded to the bottom wall of the lower case 8, the surface of the clamping member 56 is clamped to the inner wall of the clamping groove 53, the surface of the positioning pin 54 is slidably connected to the inner wall of the positioning hole 55, and the two positioning pins 54 can play a good limiting role during installation, so that the installation with bolts is facilitated.

The utility model discloses a mining explosion-proof switch is when using, put into seal groove 9 earlier with the sealing washer, inject two locating pins 54 into two locating holes 55 again, sealed outer lane 6 and sealed inner circle 62 are adjusted by oneself through expanding spring 61 under the effort of installation, laminating seal groove 9 that messenger's sealing washer can be better, make box 1 and lower box 8 more conveniently install, and lower box 8's joint spare 56 can block in box 1's draw-in groove 53 when the installation, make its installation more compact, the leakproofness is better, and go up the installation between insulating ring 51 and the lower insulating ring 52, can make the electric current can not flow out, play the effect of two layers of protection.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mining explosion-proof switch, includes box (1), its characterized in that: go up the bottom of box (1) and have lower box (8) through bolted connection, seal groove (9) have all been seted up at the bottom of going up box (1) and the top of lower box (8), mounting hole (7) have all been seted up to the inside of going up box (1) and lower box (8), the top welding of going up box (1) has installation boss (4), rubber sleeve (3) have been cup jointed on the surface of installation boss (4), the inside of going up box (1) is provided with operating device (2) and installation mechanism (5) respectively.

2. The mining explosion-proof switch of claim 1, characterized in that: the inner wall joint of seal groove (9) has sealed outer lane (6), the inner wall joint of sealed outer lane (6) has expanding spring (61), the bottom joint of expanding spring (61) has sealed inner circle (62).

3. The mining explosion-proof switch of claim 1, characterized in that: operating device (2) are including push rod (21), the inside grafting of push rod (21) has connecting rod (22), the diapire welding of box (8) has fixed cover (23) down, spacing groove (28) have been seted up on the surface of fixed cover (23), the inner wall of spacing groove (28) is provided with switch (25), the diapire welding of box (8) has telescopic link (27) down, reset spring (26) have been cup jointed on the surface of telescopic link (27), the top welding of telescopic link (27) has reset ring (24).

4. The mining explosion-proof switch of claim 3, wherein: the surface sliding connection of reset ring (24) is at the inner wall of fixed cover (23), the top of reset spring (26) and the bottom of reset ring (24) contact each other, the surface sliding connection of connecting rod (22) is at the inner wall of spacing groove (28), the surface sliding connection of push rod (21) is at the inner wall of rubber sleeve (3).

5. The mining explosion-proof switch of claim 1, characterized in that: the installation mechanism (5) comprises an upper insulating ring (51), a lower insulating ring (52) is clamped at the bottom of the upper insulating ring (51), a clamping groove (53) is formed in the inner wall of the upper box body (1), a positioning pin (54) is inserted into the bottom of the upper box body (1), a positioning hole (55) is formed in the top of the lower box body (8), and four clamping pieces (56) are welded on the inner wall of the lower box body (8).

6. The mining explosion-proof switch of claim 5, wherein: the number of the positioning pins (54) and the positioning holes (55) is two, the two positioning pins (54) and the two positioning holes (55) are symmetrically distributed on the central line of the lower box body (8) as the symmetry axis, the bottom of the lower insulating ring (52) is welded on the bottom wall of the lower box body (8), the surface of the clamping piece (56) is clamped on the inner wall of the clamping groove (53), and the surface of the positioning pin (54) is slidably connected on the inner wall of the positioning hole (55).