CN219643385U

CN219643385U - Explosion-proof box for mining electric appliance

Info

Publication number: CN219643385U
Application number: CN202320812853.XU
Authority: CN
Inventors: 籍建涛; 冯鹏鹏; 贺新义
Original assignee: Jiaozuo Coal Group Zhaogu Xinxiang Energy Co ltd
Current assignee: Jiaozuo Coal Group Zhaogu Xinxiang Energy Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-09-05
Anticipated expiration: 2033-04-12

Abstract

The utility model discloses a mining electric appliance explosion-proof box, which belongs to the field of explosion-proof boxes and comprises a box body, wherein one side of the box body is rotationally connected with a box door through a hinge, two mounting ports are formed in the bottom of the box body, wire inlet assemblies with the same structure are arranged in the two mounting ports, each wire inlet assembly comprises an upper mounting disc, a lower mounting disc and two wire inlet connectors, sealing rings are clamped in the two wire inlet channels, two groups of wire inlet assemblies are arranged at the bottom of the box body, and wire inlet connectors with different diameters of inner walls of the wire inlet channels are arranged on the wire inlet assemblies, so that the wire inlet assemblies can be used for alternately mounting wire inlet connectors with different diameters of outer walls, the applicability of the assemblies is improved, the wire inlet connectors on different wire inlet assemblies can be rotationally switched, the wire inlet assemblies are reinstalled without being removed, and the convenience of switching of the wire inlet connectors is improved.

Description

Explosion-proof box for mining electric appliance

Technical Field

The utility model relates to the field of explosion-proof boxes, in particular to an explosion-proof box for a mining electric appliance.

Background

The explosion-proof box is generally provided with an explosion-proof distribution box, an explosion-proof control box, an explosion-proof distribution cabinet and the like, is widely applied to mining of coal mines and is used for isolating the internal environment of the box from the external environment and preventing the electric appliances in the box from contacting with external gas or dust when electric sparks occur, so that safety accidents are caused.

When the explosion-proof box is used for threading, in order to improve the matching degree of the incoming line and the threading connector, manufacturers can install threading connectors of different types matched with the diameter of the outer wall of the incoming line according to the requirements of customers, the installation form not only enables the diameter of the outer wall of the incoming line to be limited, but also enables the threading connectors to be replaced more inconveniently, and therefore the explosion-proof box for the mining electric appliance is provided for solving the problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide the mining electric appliance explosion-proof box, which is characterized in that two groups of wire inlet assemblies are arranged at the bottom of a box body, and wire inlet connectors with different diameters of the inner wall of a wire inlet channel are arranged on the wire inlet assemblies, so that the wire inlet assemblies can be used for carrying out penetrating installation on wires with different diameters of the outer wall, the applicability of the assemblies is improved, the wire inlet connectors on different wire inlet assemblies can be rotatably switched, the wire inlet assemblies are not required to be reinstalled after being removed, and the convenience of switching the wire inlet connectors is improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides an explosion-proof case of mining electrical apparatus, includes the box, box one side is connected with the chamber door through the hinge rotation, seted up the viewing aperture on the chamber door, just fixed mounting has explosion-proof glass on the viewing aperture, the box is inside to have a plurality of control electrical apparatus through support fixed mounting, two installing ports have been seted up to the bottom half, and two the inside inlet wire subassembly that has the same structure that all is provided with of installing port, the inlet wire subassembly includes mounting disc, lower mounting disc and two threading joints, two the threading passageway has all been seted up to the inside threading joint, and one of them threading passageway inner wall diameter is greater than another threading passageway inner wall diameter, two the inside all joint of threading passageway has the sealing washer.

Further, the mounting port comprises an upper port section and a lower port section, an arc groove I is formed between the upper port section and the lower port section, the periphery of the bottom of the upper mounting plate is rotationally connected with the inner wall of the upper port section, the periphery of the top of the lower mounting plate is rotationally connected with the inner wall of the lower port section, and the upper mounting plate and the lower mounting plate are fixedly mounted through a threaded through pin.

Further, arc-shaped grooves II are formed in the periphery of the bottom of the upper mounting plate at the joint of the upper mounting plate and the lower mounting plate, arc-shaped grooves III are formed in the periphery of the top of the lower mounting plate at the joint of the upper mounting plate and the lower mounting plate, the arc-shaped grooves I, the arc-shaped grooves II and the arc-shaped grooves III are combined to form a ball cavity, and a plurality of balls are arranged in the ball cavity.

Further, a second threaded through nail is arranged on one side of the top of the upper mounting plate, and the upper mounting plate and the bottom of the box body are fixedly mounted through the second threaded through nail.

Further, two threading holes are formed in the lower mounting plate corresponding to the two threading channels, and the top of the threading connector is fixedly mounted with the bottom of the lower mounting plate through a threaded threading nail III.

Further, the sealing ring is of a round structure made of rubber materials, and a plurality of sealing bulges are arranged on the inner wall of the sealing ring.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

this scheme, through set up two sets of inlet wire subassemblies in bottom half, and all install the different threading joints of threading passageway inner wall diameter on the inlet wire subassembly, make this inlet wire subassembly can alternate the installation to the inlet wire that outer wall diameter is different, improve the suitability of this subassembly, and the rotatable switching of threading joint on the different inlet wire subassemblies need not to demolish the back and install again, improve the convenience that the threading joint was switched.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the case of the present utility model;

FIG. 3 is a schematic view of a split structure of an incoming line assembly according to the present utility model;

fig. 4 is a schematic cross-sectional view of an incoming line assembly according to the present utility model.

The reference numerals in the figures illustrate:

1. a case; 101. a mounting port; 1011. an upper port section; 1012. a lower port section; 1013. an arc-shaped groove I; 2. a door; 3. an observation port; 4. controlling an electric appliance; 5. a wire inlet assembly; 6. an upper mounting plate; 601. an arc-shaped groove II; 7. a lower mounting plate; 701. an arc-shaped groove III; 702. a threading hole; 8. threading the joint; 801. a threading passage; 9. a seal ring; 901. a sealing protrusion; 10. threading a first screw thread; 11. a ball; 12. threading a second screw; 13. and a threaded through pin III.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1-4, an explosion-proof box for mining electrical appliances comprises a box body 1, wherein one side of the box body 1 is rotatably connected with a box door 2 through a hinge, an observation port 3 is formed in the box door 2, explosion-proof glass is fixedly installed on the observation port 3, a plurality of control electrical appliances 4 are fixedly installed inside the box body 1 through a bracket, two installation ports 101 are formed in the bottom of the box body 1, wire inlet assemblies 5 with the same structure are arranged inside the two installation ports 101, each wire inlet assembly 5 comprises an upper installation disc 6, a lower installation disc 7 and two wire through connectors 8, wire through channels 801 are formed inside the two wire through connectors 8, the diameter of the inner wall of one wire through channel 801 is larger than that of the inner wall of the other wire through channel 801, and sealing rings 9 are clamped inside the two wire through channels 801.

During installation, the box body 1 is fixedly installed on a wall surface or a bracket through expansion bolts, then corresponding electric appliances are installed in the box body 1, a wire inlet cable with an installation nut at one end is installed on external threads at the bottom of the wire inlet connector 8, and wires in the wire inlet cable penetrate through the lower installation disc 7 and the upper installation disc 6 and are led into the box body 1, so that the wire inlet cable is connected with the electric appliances;

when the threading joint 8 needs to be switched, the threaded threading joint second 12 is loosened firstly, the limit between the upper mounting disc 6 and the bottom of the box body 1 is released, then the upper mounting disc 6 and the lower mounting disc 7 are rotated, the threading joint 8 corresponding to the bottom of the lower mounting disc 7 is rotated to the adaptive mounting position, and then the threaded threading joint second 12 is screwed down for limit, so that the threading joint 8 is more convenient to switch, and the adaptability of the threading joint 8 in mounting is improved.

Example 2:

in view of the above embodiment 1, further description is made, referring to fig. 3 and 4, the mounting port 101 includes an upper port section 1011 and a lower port section 1012, an arc groove one 1013 is formed between the upper port section 1011 and the lower port section 1012, the bottom periphery of the upper mounting disk 6 is rotatably connected with the inner wall of the upper port section 1011, the top periphery of the lower mounting disk 7 is rotatably connected with the inner wall of the lower port section 1012, the upper mounting disk 6 and the lower mounting disk 7 are fixedly mounted by a first threaded through-pin 10, an arc groove two 601 is formed at the bottom periphery of the upper mounting disk 6 at the connection position of the upper mounting disk 6 and the lower mounting disk 7, an arc groove three 701 is formed at the top periphery of the lower mounting disk 7 at the connection position of the upper mounting disk 6 and the lower mounting disk 7, an arc groove one 1013, an arc groove two 601 and an arc groove three 701 are combined into a ball cavity, a plurality of balls 11 are arranged in the ball cavity, a second threaded through-pin 12 is arranged at one side of the top of the upper mounting disk 6, the bottom of the upper mounting disk 6 and the box 1 is fixedly mounted by a second threaded through-pin 12, two threaded through-pins 7 are fixedly mounted by corresponding to the two threaded through-pins 7, and a threaded through-hole 13 is formed in the bottom mounting disk 7 is fixedly mounted by a threaded through-hole 702 at the bottom mounting disk 7.

Through the upper port section 1011 and the lower port section 1012 that set up, conveniently go up mounting plate 6 and lower mounting plate 7 and rotate in upper port section 1011 and lower port section 1012, and arc groove one 1013, arc groove two 601 and arc groove three 701 make up into the ball chamber, can form annular cavity structure in the combination between upper mounting plate 6 and lower mounting plate 7, conveniently install the ball, improve the inside pivoted smoothness of upper mounting plate 6 and lower mounting plate 7 at mounting port 101.

Example 3:

in view of the above embodiments 1 and 2, referring to fig. 4, the sealing ring 9 is of a circular structure made of rubber, and a plurality of sealing protrusions 901 are provided on the inner wall of the sealing ring 9.

The sealing performance of the connection part of the wire inside the wire-incoming cable and the threading channel 801 of the threading connector 8 can be improved through the arranged sealing ring 9, and the sealing protrusions 901 can realize multi-layer sealing, so that the practicability is improved.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides an explosion-proof case of mining electrical apparatus, includes box (1), its characterized in that: the utility model discloses a novel anti-explosion box is characterized in that a box door (2) is connected to one side of a box body (1) through hinge rotation, an observation port (3) is formed in the box door (2), and anti-explosion glass is fixedly installed on the observation port (3), a plurality of control electric appliances (4) are fixedly installed inside the box body (1) through a support, two installation ports (101) are formed in the bottom of the box body (1), two wire inlet assemblies (5) with the same structure are arranged inside the installation ports (101), each wire inlet assembly (5) comprises an upper installation disc (6), a lower installation disc (7) and two wire through connectors (8), a wire through channel (801) is formed inside each wire through connector (8), and the inner wall diameter of one wire through channel (801) is larger than the other wire through channel (801) inner wall diameter, and sealing rings (9) are clamped inside each wire through channel (801).

2. The mining electric appliance explosion-proof box according to claim 1, wherein: the mounting port (101) comprises an upper port section (1011) and a lower port section (1012), an arc-shaped groove I (1013) is formed between the upper port section (1011) and the lower port section (1012), the periphery of the bottom of the upper mounting disc (6) is rotationally connected with the inner wall of the upper port section (1011), the periphery of the top of the lower mounting disc (7) is rotationally connected with the inner wall of the lower port section (1012), and the upper mounting disc (6) and the lower mounting disc (7) are fixedly mounted through a threaded through pin I (10).

3. The mining electric appliance explosion-proof box according to claim 2, wherein: the novel ball bearing comprises an upper mounting plate (6) and a lower mounting plate (7), wherein an arc-shaped groove II (601) is formed in the periphery of the bottom of the upper mounting plate (6) and the periphery of the top of the lower mounting plate (7) are positioned at the joint of the upper mounting plate (6) and the lower mounting plate (7), an arc-shaped groove III (701) is formed in the periphery of the top of the lower mounting plate (7), and a ball cavity is formed by combining the arc-shaped groove I (1013), the arc-shaped groove II (601) and the arc-shaped groove III (701), and a plurality of balls (11) are arranged in the ball cavity.

4. The mining electric appliance explosion-proof box according to claim 1, wherein: the top side of the upper mounting plate (6) is provided with a threaded second through bolt (12), and the upper mounting plate (6) and the bottom of the box body (1) are fixedly mounted through the threaded second through bolt (12).

5. The mining electric appliance explosion-proof box according to claim 1, wherein: two threading holes (702) are formed in the lower mounting plate (7) corresponding to the two threading channels (801), and the top of the threading connector (8) is fixedly mounted with the bottom of the lower mounting plate (7) through a threaded threading nail III (13).

6. The mining electric appliance explosion-proof box according to claim 1, wherein: the sealing ring (9) is of a round structure made of rubber, and a plurality of sealing bulges (901) are arranged on the inner wall of the sealing ring (9).