Fire-proof and explosion-proof box made of arc-proof high-performance material

Abstract

The utility model relates to the field of explosion-proof boxes, in particular to a fire-proof and explosion-proof box made of an arc-proof high-performance material. The technical problems that a sleeve is usually adopted for protection, when vibration and impact of an external environment are transmitted to the surface, internal electrical elements and circuits are extruded due to pressure influence, so that the internal space is reduced, dangerous conditions such as short circuit or electric arc are easily caused, and the overall protection effect is reduced are solved. According to the technical scheme, the arc-preventing fireproof and explosion-proof box made of the high-performance material comprises a box body, a closing cover, a pipeline access end and an explosion-proof disc, through the closing cover and the buckling arrangement on the box body, internal electronic components can be protected, the pipeline access end is utilized, three groups of access communication cables are annularly arranged at the outer end of the box body for protection, a three-way mode is formed for free access, the inconvenience influence of a two-way and a single pipe in the prior art is avoided, and the explosion-proof disc is fixed at the bottom of the box body. Bottom safety anti-explosion protection can be integrally added, and the overall protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof boxes, in particular to a fire-proof and explosion-proof box made of a high-performance arc-proof material. Background Technique

[0002] An explosion-proof box is an important device used in the industrial field. It can effectively prevent fires and explosions occurring in flammable and explosive environments and play a role in protecting the lives and property of personnel. In a flammable and explosive environment, it ensures the safe operation of electrical equipment and prevents the generation of electric sparks or high temperatures from causing explosions. Existing explosion-proof boxes usually use sleeves for protection during use. When vibrations and impacts in the external environment are transmitted to the surface, due to pressure effects, the internal electrical components and circuits are squeezed, reducing the internal space and easily causing dangerous situations such as short circuits or electric arcs, thereby reducing the overall protection effect. Therefore, we propose a fire-proof and explosion-proof box made of a high-performance arc-proof material to solve the problems mentioned above. Content of the Utility Model

[0003] In order to overcome the problem that explosion-proof boxes usually use sleeves for protection. When vibrations and impacts in the external environment are transmitted to the surface, due to pressure effects, the internal electrical components and circuits are squeezed, reducing the internal space and easily causing dangerous situations such as short circuits or electric arcs, thereby reducing the overall protection effect.

[0004] The technical solution of the utility model is as follows: A fire-proof and explosion-proof box made of a high-performance arc-proof material, including a box body, a cover, a pipeline access end, and an explosion-proof disk; a cover for protecting internal electronic components is buckled on the box body. Three groups of pipeline access ends for protecting access and connecting cables are circumferentially arranged at the outer end of the box body. An explosion-proof disk for installing the whole to increase the bottom safety explosion-proof protection is fixedly installed at the bottom of the box body.

[0005] Preferably, by using the pipeline access end, three groups are circumferentially arranged at the outer end of the box body to protect the access and connecting cables, forming a tee connection method for free access, avoiding the inconvenience of the previous two-way and single-pipe connections. By using the explosion-proof disk, which is fixedly located at the bottom of the box body, the whole can be installed to increase the bottom safety explosion-proof protection and improve the overall protection effect.

[0006] As a preference, two groups of integrally formed explosion-proof steel sleeves are linearly arranged on the box body. A shock-absorbing arc groove is circumferentially opened at the outer end of the explosion-proof steel sleeve. A first installation hole for installing the cover is circumferentially opened near the edge at the top of the box body. A positioning ring is fixedly installed at the center of the bottom inside the box body. The third protection ring plate, the second protection ring plate, and the first protection ring plate are sequentially sleeved outside the box body with the positioning ring as the center, and layer-by-layer protection is carried out through the third protection ring plate, the second protection ring plate, and the first protection ring plate.

[0007] Preferably, the first protective ring plate, the second protective ring plate, and the third protective ring plate are all arranged in a circumferential circle. Gap grooves are circumferentially formed on the first protective ring plate, the second protective ring plate, and the third protective ring plate. A first spring rod is provided between the first protective ring plate, the second protective ring plate, and the third protective ring plate. A damper is arranged inside the first spring rod. A positioning hole of the box body is provided between the bottoms of the first protective ring plate, the second protective ring plate, and the third protective ring plate. The outer walls of the first protective ring plate, the second protective ring plate, and the third protective ring plate are coated with a shock-absorbing layer, through which internal protection can be formed.

[0008] Preferably, a second mounting hole is circumferentially formed near the edge of the cover. A stepped sleeve is sequentially stacked on the top of the cover. Shock-absorbing holes are circumferentially distributed on the top of the stepped sleeve. Multiple groups of through holes are alternately formed on the periphery of the stepped sleeve. An airbag ball is provided between two groups of through holes. A positioning column is provided at the center of the cover. An anti-corrosion coating is applied to the outer wall of the stepped sleeve. When impacted from above, it is slowed down through the shock-absorbing holes, weakened again by colliding with the airbag ball, and then shunted into the stepped sleeve and the through holes to form a slow-down and shunt operation.

[0009] Preferably, the pipeline access end includes a wire pipe, a shell, a plugging hole, a shell cover, a wire hole, a first guiding hole, a second guiding hole, an explosion-proof shell, a shock-absorbing cavity, a central protection pipe, a second spring rod, a clamping ring, explosion-proof bolts, and explosion-proof columns. A shell cover is buckled on the shell. A wire pipe is provided at a position away from the center of the shell cover on the shell. A plugging hole is penetrated through the center of the top of the shell. A wire hole is formed at the center of the shell cover. First guiding holes are distributed on the shell cover. The first guiding holes and the second guiding holes are used for positioning and installation. The plugging hole can install a longitudinal cable protection tooling.

[0010] Preferably, an explosion-proof shell is arranged inside the shell. A central protection pipe is arranged inside the explosion-proof shell. Second guiding holes corresponding to the first guiding holes are formed on both the explosion-proof shell and the shell. Clamping rings are symmetrically arranged inside the central protection pipe. The outer ends of the clamping rings are provided with second spring rods passing through the explosion-proof shell and the shell. A damper is arranged inside the second spring rods. Explosion-proof bolts are provided between the second spring rods and the shell. An explosion-proof column is sleeved at the end of the second spring rod. Through the explosion-proof column and the explosion-proof bolts, the external protection performance can be improved.

[0011] Preferably, an explosion-proof plate is provided at the center of the bottom of the explosion-proof disc. Limiting holes are circumferentially formed at the bottom of the explosion-proof disc. An extension plate is provided between two groups of limiting holes. Discharge arc columns are circumferentially arranged at the bottom edge of the explosion-proof disc. Two groups of clamping holes are linearly formed on the extension plate. A shock-absorbing arc plate is provided in the middle of the extension plate. Through the shock-absorbing arc plate, shock-absorbing protection is formed.

[0012] The beneficial effects of the present utility model:

[0013] 1. Different from the conventional explosion-proof boxes that usually use sleeves for protection, when vibrations and impacts in the external environment are transmitted to the surface, due to pressure effects, the internal electrical components and circuits are squeezed, reducing the internal space and easily causing dangerous situations such as short circuits or electric arcs, thus reducing the overall protection effect. In this case, through the closing cover, which is snap-fitted on the box body, it can be used to protect the internal electronic components. With the pipeline access ends, three groups of access and connecting cables are circumferentially arranged at the outer end of the box body for protection, forming a tee connection for free access, avoiding the inconvenience of the previous two-way and single-pipe connections. The explosion-proof disk, which is fixed at the bottom of the box body, can be installed to increase the bottom safety and explosion protection as a whole, enhancing the overall protection effect.

[0014] 2. When carrying out protection, according to different installation positions, the snap-fit holes and limit holes on the explosion-proof disk are used for installation operations, forming a two-way installation. The explosion-proof plates are arranged in opposite directions, reducing the impact resonance effect. The electric arc can be guided to release through the discharge arc column, avoiding concentration. As the external impact enters the interior, the first protective ring plate, the second protective ring plate, and the third protective ring plate are all circumferentially arranged in a circle, forming layer-by-layer partitions. The first spring columns increase the resilience effect between them. The electronic components are installed using the positioning ring, and the cables are passed through the clearance grooves to avoid mutual extrusion of the electronic components, thus forming protection.

[0015] 3. When the cable is inserted, the explosion-proof bolts are adjusted, and the clamping ring is adapted to clamp the cable to form positioning protection. When transmitting the impact explosion wave, the explosion-proof shell, the shock isolation cavity, and the central protection tube provide layer-by-layer protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the box body of the present utility model;

[0018] Figure 3 It is a schematic diagram of the closing cover of the present utility model;

[0019] Figure 4 It is a schematic diagram of the pipeline access end of the present utility model;

[0020] Figure 5 It is a schematic diagram of the explosion-proof disk of the present utility model.

[0021] Description of reference numerals: 1, box body; 2, cover; 3, pipeline access end; 4, explosion-proof disc; 101, explosion-proof steel sleeve; 102, shock-absorbing arc groove; 103, first mounting hole; 104, first protective ring plate; 105, second protective ring plate; 106, third protective ring plate; 107, first spring rod; 108, positioning hole; 109, positioning ring; 110, shock-absorbing layer; 201, stepped sleeve; 202, second mounting hole; 203, anti-corrosion coating; 204, shock-absorbing hole; 205, through hole; 206, airbag ball; 207, positioning column; 301, wire pipe; 302, housing; 303, insertion hole; 304, housing cover; 305, wire hole; 306, first guiding hole; 307, second guiding hole; 308, explosion-proof housing; 309, shock isolation cavity; 310, central protection pipe; 311, second spring rod; 312, clamping ring; 313, explosion-proof bolt; 314, explosion-proof column; 401, limiting hole; 402, explosion-proof plate; 403, discharge arc column; 404, extension plate; 405, shock isolation arc plate; 406, clamping hole. Detailed implementation manners

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Please refer to Figure 1-2 , the present utility model provides an embodiment: a fire and explosion-proof box made of a high-performance arc-proof material, comprising a box body 1, a cover 2, a pipeline access end 3 and an explosion-proof disc 4; a cover 2 for protecting internal electronic components is buckled on the box body 1, three groups of pipeline access ends 3 for accessing and connecting cables for protection are circumferentially arranged at the outer end of the box body 1, and an explosion-proof disc 4 for installing and integrally increasing the bottom safety explosion-proof protection is fixedly installed at the bottom of the box body 1.

[0024] Please refer to Figure 2-3, in this embodiment, two sets of integrally formed explosion-proof steel sleeves 101 are linearly arranged on the box body 1. The outer ends of the explosion-proof steel sleeves 101 are circumferentially provided with shock-absorbing arc grooves 102. The first mounting holes 103 for installing the cover 2 are circumferentially opened near the edge at the top of the box body 1. A positioning ring 109 is provided at the center of the bottom inside the box body 1. Inside the box body 1, a third protective ring plate 106, a second protective ring plate 105 and a first protective ring plate 104 are sequentially arranged outside with the positioning ring 109 as the center. Through the third protective ring plate 106, the second protective ring plate 105 and the first protective ring plate 104, layer-by-layer protection is carried out. The first protective ring plate 104, the second protective ring plate 105 and the third protective ring plate 106 are all arranged in a circumferential circle. Gap grooves are circumferentially opened on the first protective ring plate 104, the second protective ring plate 105 and the third protective ring plate 106. First spring rods 107 are arranged between the first protective ring plate 104, the second protective ring plate 105 and the third protective ring plate 106. Dampers are arranged inside the first spring rods 107. Positioning holes 108 of the box body 1 are arranged between the bottoms of the first protective ring plate 104, the second protective ring plate 105 and the third protective ring plate 106. The outer walls of the first protective ring plate 104, the second protective ring plate 105 and the third protective ring plate 106 are coated with a shock-absorbing layer 110. Through the shock-absorbing layer 110, internal protection can be formed.

[0025] Please refer to Figure 3-4 , in this embodiment, second mounting holes 202 are circumferentially opened near the edge on the cover 2. A stepped sleeve 201 is sequentially stacked on the top of the cover 2. Shock-absorbing holes 204 are circumferentially distributed at the top of the stepped sleeve 201. Multiple groups of through holes 205 are alternately opened on the periphery of the stepped sleeve 201. Airbag balls 206 are arranged between two groups of through holes 205. A positioning post 207 is arranged at the center of the cover 2. The outer wall of the stepped sleeve 201 is coated with an anti-corrosion coating 203. When impacted from above, it is slowed down through the shock-absorbing holes 204, and the collision with the airbag balls 206 weakens it again. Then it is shunted into the stepped sleeve 201 and the through holes 205 to form a slow-down and shunt operation. The pipeline access end 3 includes a wire pipe 301, a housing 302, a plug-in hole 303, a housing cover 304, a wire hole 305, a first guiding hole 306, a second guiding hole 307, an explosion-proof shell 308, a shock-absorbing cavity 309, a central protection tube 310, a second spring rod 311, a clamping ring 312, explosion-proof bolts 313 and explosion-proof columns 314. A housing cover 304 is buckled on the housing 302. A wire pipe 301 is arranged at the center of the housing 302 away from the housing cover 304. A plug-in hole 303 is penetrated and opened at the center of the top of the housing 302. A wire hole 305 is opened at the center of the housing cover 304. First guiding holes 306 are distributed on the housing cover 304. Positioning and installation are carried out by using the first guiding holes 306 and the second guiding holes 307. The plug-in hole 303 can install a longitudinal cable protection tooling.

[0026] Please refer to Figure 1-5, in this embodiment, an explosion-proof shell 308 is provided inside the housing 302, and a central protection tube 310 is provided inside the explosion-proof shell 308. Second guiding holes 307 corresponding to the first guiding holes 306 are formed in both the explosion-proof shell 308 and the housing 302. Clamping rings 312 are symmetrically arranged inside the central protection tube 310. The outer ends of the clamping rings 312 are provided with second spring rods 311 passing through the explosion-proof shell 308 and the housing 302. Dampers are provided inside the second spring rods 311. Explosion-proof bolts 313 are provided between the second spring rods 311 and the housing 302. Explosion-proof columns 314 are sleeved at the ends of the second spring rods 311. The external protection performance can be improved through the explosion-proof columns 314 and the explosion-proof bolts 313. An explosion-proof plate 402 is provided at the center of the bottom of the explosion-proof disc 4. Limiting holes 401 are circumferentially formed at the bottom of the explosion-proof disc 4. An extension plate 404 is provided between two groups of limiting holes 401. Discharge arc columns 403 are circumferentially arranged at the bottom edge of the explosion-proof disc 4. Two groups of clamping holes 406 are linearly formed on the extension plate 404. A shock isolation arc plate 405 is provided in the middle of the extension plate 404. Shock isolation protection is formed through the shock isolation arc plate 405.

[0027] During operation, according to different installation positions, the clamping holes 406 and the limiting holes 401 on the explosion-proof disc 4 are used for installation operations to form a two-way installation. The explosion-proof plates 402 are arranged in opposite directions, reducing the impact of resonance. The discharge arc columns 403 can guide the release of electric arcs to avoid concentration. As an external impact occurs inside, the first protection ring plate 104, the second protection ring plate 105, and the third protection ring plate 106 are all arranged in a circumferential circle, forming layer-by-layer partitions. The first spring columns increase the rebound effect between them. The electronic components are installed using the positioning ring 109, and the cables are passed through the gap grooves to prevent the electronic components from being squeezed against each other;

[0028] When the cable is inserted, the explosion-proof bolts 313 are adjusted, and the clamping rings 312 are adapted to clamp the cable to form positioning protection. When transmitting the impact explosion wave, the explosion-proof shell 308, the shock isolation cavity 309, and the central protection tube 310 provide layer-by-layer protection. The first guiding holes 306 and the second guiding holes 307 are used for positioning and installation. The insertion holes 303 can install longitudinal cable protection tools. When an impact occurs from above, it is slowed down through the shock absorption holes 204, and the collision airbag balls 206 weaken it again. Then, it is shunted into the stepped sleeve 201 and the through holes 205 to form a slow-down and shunt operation.

[0029] Through the above steps, the pipeline access end 3 is used to protect three groups of access and connected cables arranged circumferentially at the outer end of the box body 1, forming a tee connection for free access, avoiding the inconvenience of the previous two-way connection and single pipe. The explosion-proof disc 4 is fixed at the bottom of the box body 1, and can be installed to increase the overall bottom safety and explosion protection, improving the overall protection effect.

[0030] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art.

Claims

1. An arc-proof high-performance material fireproof and explosion-proof box, comprising a box body (1); characterized in that: The box body (1) also comprises a closing cover (2), a pipeline access end (3) and an explosion-proof disk (4); the closing cover (2) for protecting the internal electronic components is buckled on the box body (1); three groups of pipeline access ends (3) for connecting and protecting cables are provided in a circular manner at the outer end of the box body (1); and an explosion-proof disk (4) for installing the overall bottom safety and explosion-proof protection is fixedly installed at the bottom of the box body (1).

2. The arc-proof high-performance material fireproof and explosion-proof box according to claim 1, characterized in that: Two groups of explosion-proof steel sleeves (101) are linearly arranged on the box body (1), and a shock-absorbing arc groove (102) is circumferentially provided on the outer end of the explosion-proof steel sleeve (101). A first mounting hole (103) for mounting with the closing cover (2) is circumferentially provided at the top of the box body (1) near the edge. A positioning ring (109) is provided at the bottom of the center of the box body (1). A third protective ring plate (106), a second protective ring plate (105) and a first protective ring plate (104) are sequentially arranged on the outer shell of the box body (1) with the positioning ring (109) as the center.

3. The arc-proof high-performance material fireproof and explosion-proof box according to claim 2, characterized in that: The first protection ring plate (104), the second protection ring plate (105) and the third protection ring plate (106) are all arranged in an annular direction; the first protection ring plate (104), the second protection ring plate (105) and the third protection ring plate (106) are all provided with an annular gap groove; a first spring rod (107) is provided between the first protection ring plate (104), the second protection ring plate (105) and the third protection ring plate (106); a damper is provided inside the first spring rod (107); a positioning hole (108) located on the box body (1) is provided between the bottoms of the first protection ring plate (104), the second protection ring plate (105) and the third protection ring plate (106); and the outer walls of the first protection ring plate (104), the second protection ring plate (105) and the third protection ring plate (106) are covered with a shock absorbing layer (110).

4. The arc-proof high-performance material fireproof and explosion-proof box according to claim 1, characterized in that: A second mounting hole (202) is circumferentially provided on the closing cover (2) near the edge, a stepped sleeve (201) is sequentially stacked on the top of the closing cover (2), shock-absorbing holes (204) are circumferentially distributed on the top of the stepped sleeve (201), a plurality of groups of perforations (205) are alternately provided on the periphery of the stepped sleeve (201), an airbag ball (206) is provided between two groups of perforations (205), a positioning column (207) is provided at the center of the closing cover (2), and an anti-corrosion coating (203) is coated on the outer wall of the stepped sleeve (201).

5. The arc-proof high-performance material fireproof and explosion-proof box according to claim 1, characterized in that: The pipeline access end (3) comprises a wire pipe (301), a shell (302), a plug hole (303), a shell cover (304), a wire hole (305), a first guide hole (306), a second guide hole (307), an explosion-proof shell (308), a shock-isolating cavity (309), a central protective tube (310), a second spring rod (311), a clamping ring (312), an explosion-proof bolt (313) and an explosion-proof column (314); the shell cover (304) is interlocked with each other on the shell (302); the shell (302) is provided with a wire pipe (301) away from the center of the shell cover (304); the plug hole (303) is opened through the center of the top of the shell (302); the wire hole (305) is opened in the center of the shell cover (304); and the first guide holes (306) are distributed on the shell cover (304).

6. The arc-proof high-performance material fireproof and explosion-proof box according to claim 5, characterized in that: An explosion-proof shell (308) is provided inside the shell (302), a central protective tube (310) is provided inside the explosion-proof shell (308), a second guide hole (307) corresponding to the first guide hole (306) is opened on both the explosion-proof shell (308) and the shell (302), a clamping ring (312) is symmetrically provided inside the central protective tube (310), a second spring rod (311) passing through the explosion-proof shell (308) and the shell (302) is provided at the outer end of the clamping ring (312), a damper is provided inside the second spring rod (311), an explosion-proof bolt (313) is provided between the second spring rod (311) and the shell (302), and an explosion-proof column (314) is sleeved on the end of the second spring rod (311).

7. The arc-proof high-performance material fireproof and explosion-proof box according to claim 1, characterized in that: An explosion-proof plate (402) is provided at the bottom center of the explosion-proof disk (4), a limiting hole (401) is provided in an annular direction at the bottom of the explosion-proof disk (4), an extension plate (404) is provided between two groups of limiting holes (401), a discharge arc column (403) is provided in an annular direction at the bottom edge of the explosion-proof disk (4), two groups of clamping holes (406) are linearly provided on the extension plate (404), and a seismic isolation arc plate (405) is provided in the middle of the extension plate (404).

Images