CN113473755B - Movable type mining explosion-proof and intrinsically safe control box - Google Patents
Movable type mining explosion-proof and intrinsically safe control box Download PDFInfo
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- CN113473755B CN113473755B CN202110574572.0A CN202110574572A CN113473755B CN 113473755 B CN113473755 B CN 113473755B CN 202110574572 A CN202110574572 A CN 202110574572A CN 113473755 B CN113473755 B CN 113473755B
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- fixedly connected
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- control box
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane
Abstract
The invention discloses a movable mining explosion-proof and intrinsic safety control box, which belongs to the technical field of mining control equipment and comprises two oppositely-installed shells, a platform fixedly connected to the outer walls of the four sides of the shells and a central control box arranged in the shells, wherein the outer wall of one side of the platform is fixedly connected with a movable assembly, a buffer assembly comprises a fixed sleeve fixedly connected to the inner wall of the top of the shell and an inner sleeve fixedly connected to the outer wall of the top of the fixed sleeve, the inner sleeve and the inner wall of the fixed sleeve are slidably connected with an inner cylinder, the inner wall of the periphery of the fixed sleeve is provided with a sliding groove, and the inner wall of the top of the sliding groove is fixedly connected with a rebound rod. According to the invention, by arranging the buffer component, high-temperature and high-pressure gas in the inner connecting sleeve and the shell can be treated, meanwhile, the inner cylinder extends by means of movement, the space in the shell is expanded, the gas pressure is reduced, and meanwhile, the inner cylinder is connected to the inner wall of the inner connecting sleeve in a sliding manner, so that the shell can keep enough sealing performance.
Description
Technical Field
The invention relates to a mining control box device, in particular to a movable mining explosion-proof and intrinsically safe control box, and belongs to the technical field of mining control equipment.
Background
The classification of explosion-proof electrical equipment specially used for underground coal mines, the explosion-proof electrical equipment is classified into explosion-proof type, safety-increasing type, intrinsic safety type and the like, and the intrinsic safety type electrical equipment is characterized in that all circuits are intrinsic safety circuits; the explosion-proof type is that all parts which can ignite explosive gas mixture are enclosed in a shell.
The existing mining explosion-proof control box is generally based on a shell protection isolation design, an internal environment is isolated from an external space, the influence of potential explosion hazards on the shell inside and outside is avoided, namely the shell is always in a stable and limited state, once the gas leakage of the control box or the release of high-temperature and high-pressure gas occurs inside the shell, the influence on the shell is gradually strengthened, and therefore the explosion-proof capacity of the shell is weakened.
How to research out a movable mining explosion-proof and intrinsically safe control box is a problem to be solved urgently at present.
Disclosure of Invention
The invention mainly aims to solve the defects of the prior art, and provides a movable mining explosion-proof and intrinsically safe control box.
The purpose of the invention can be achieved by adopting the following technical scheme:
the movable mining flameproof and intrinsically safe control box comprises two oppositely-installed shells, a platform fixedly connected to the peripheral outer walls of the shells and a central control box arranged in the shells, wherein a moving assembly is fixedly connected to the outer wall of one side of the platform, a buffer assembly is fixedly connected to the inner wall of the top of the shell, the buffer assembly comprises a fixed sleeve fixedly connected to the inner wall of the top of the shell and an inner sleeve fixedly connected to the outer wall of the top of the fixed sleeve, the inner sleeve and the inner wall of the fixed sleeve are slidably connected with an inner tube, a sliding groove is formed in the peripheral inner wall of the fixed sleeve, a rebound rod is fixedly connected to the inner wall of the top of the sliding groove, a connecting table fixedly connected with the outer wall of one side and the inner tube is fixedly connected to the outer wall of one end of the rebound rod, two branch tubes are fixedly connected to the inner wall of the top of the inner sleeve, and a central control sleeve is fixedly connected between the outer walls of the other ends of the two branch tubes, the inner wall of the top of the middle sleeve is fixedly connected with a sparking sheet, the outer wall of the top of the inner cylinder is fixedly connected with an ejector pin rod, the inner wall of the inner cylinder is provided with a flow guide hole, and the inner wall of the inner connecting sleeve is provided with a first through hole.
Preferably, the outer wall of the bottom of the fixed sleeve is connected with two lower buckling plates which are oppositely arranged through a reset hinge, and the inner wall of the bottom of the middle sleeve is connected with two upper buckles which are oppositely arranged through a reset hinge.
Preferably, the outer wall of the inner connecting sleeve is fixedly connected with an exchange shell, the outer wall of the inner connecting sleeve is provided with second through holes which are circumferentially arranged, the outer wall of the exchange shell is provided with third through holes which are circumferentially arranged, and the inner wall of the exchange shell is provided with sponge attached with cooling liquid.
Preferably, the outer wall of the bottom of the inner connecting sleeve is fixedly connected to the outer wall of the top of the shell, and the central control box adopts an intrinsic safety type circuit structure.
Preferably, the inner wall of the bottom of the shell is provided with a placement groove, the inner wall of the placement groove is movably connected with an inner plug sleeve, and the outer wall of the middle-placed guide tube of the inner plug sleeve is fixedly connected with an air exchange cylinder fixedly connected with the outer wall of one side of the outer wall of the middle-placed guide tube and the inner wall of one side of the shell.
Preferably, the inner wall of the air exchange cylinder is provided with a piston disc, the outer wall of one side of the air exchange cylinder is fixedly connected with an electric push rod, and the outer wall of an output shaft of the electric push rod is fixedly connected with the inner wall of the center of the piston disc.
Preferably, well accuse box one side outer wall fixed connection in electric putter one side outer wall, interior plug bush adopts non-metallic material and both sides are provided with the fillet.
Preferably, the moving assembly comprises an adjusting box fixedly connected to the outer wall of one side of the platform and two rocker arms arranged on the outer wall of one side of the adjusting box.
Preferably, the outer wall of one side of the rocker arm is fixedly connected with a supporting rod, and the outer wall of one side of the supporting rod is fixedly connected with a driving box.
Preferably, the turntable is arranged in the middle of the driving box, and the outer wall of one side of the driving box is provided with wheels.
The invention has the beneficial technical effects that: according to the movable type mining explosion-proof and intrinsic safety control box, the buffer assembly is arranged, when a central control box in the shell operates, high-pressure and high-temperature gas is released to enter an inner area of the shell, the inner cylinder is pushed to ascend gradually along with the gradual rise of pressure, then after a flow guide hole of the inner cylinder is communicated with a third through hole in the inner part of the inner connecting sleeve, the gas enters the inner connecting sleeve, a thimble rod is in contact with a sparking sheet in the inner middle sleeve at the moment, and sparks ignite the gas in the inner connecting sleeve through the branch pipe; the high-temperature and high-pressure gas in the inner connecting sleeve and the shell can be treated, the inner cylinder extends in a moving way, the space in the shell is expanded, the gas pressure is reduced, and meanwhile, the inner cylinder is connected to the inner wall of the inner connecting sleeve in a sliding way, so that the shell keeps enough sealing performance; by arranging the lower pinch plate and the upper pinch plate, when the inner cylinder rises, the lower pinch plate seals the bottom area of the fixed sleeve, so that the inner space of the shell is isolated from the inner cylinder space, when the gas of the inner sleeve burns, the inner part of the shell cannot be interfered, and after the ejector pin rod is separated from the middle sleeve, the upper pinch plate seals the bottom of the middle sleeve, so that the air on the outer wall is prevented from entering the inner sleeve area; by arranging the inner plug sleeve of the air exchange cylinder, wherein the inner plug sleeve is arranged on the inner wall of the placement groove, after the two shells are fixed through the abutment, the electric push rod pushes the piston disc in the air exchange cylinder, so that the inner plug sleeve is inflated and expanded, a gap between the two shells is sealed, and the sealing property in the shells is further ensured; through setting up the adjusting box, wherein the opening angle of two rocking arms is adjusted to the adjusting box, can drive the branch swing for the relative position of drive box obtains adjusting, thereby makes the removal work of this kind of device adaptation gallery and many environments at the peaceful end.
Drawings
FIG. 1 is a schematic overall structure diagram of a preferred embodiment of a mobile mining flameproof and intrinsically safe control box according to the invention;
FIG. 2 is a partial structural cross-sectional view of a preferred embodiment of the mobile mining flameproof and intrinsically safe control box according to the invention;
FIG. 3 is a schematic structural diagram of a buffer assembly of a preferred embodiment of the mobile mining flameproof and intrinsically safe control box according to the invention;
FIG. 4 is a structural cross-sectional view of a buffering component of a preferred embodiment of the movable mining flameproof and intrinsically safe control box according to the invention;
FIG. 5 is a schematic structural diagram of an inner plug bush of a preferred embodiment of the movable mining flameproof and intrinsically safe control box according to the invention;
FIG. 6 is a schematic structural diagram of a shell of a preferred embodiment of the mobile mining flameproof and intrinsically safe control box according to the invention.
In the figure: 1-shell, 2-adjusting box, 3-support rod, 4-driving box, 5-exchange shell, 6-lapping table, 7-central control box, 8-electric push rod, 9-branch pipe, 10-central sleeve, 11-taper rod, 12-internal sleeve, 13-fixed sleeve, 14-rebound rod, 15-lower buckle, 16-internal cylinder, 17-ignition sheet, 18-upper buckle, 19-sponge sleeve, 20-first through hole, 21-second through hole, 22-third through hole, 23-air exchange cylinder, 24-internal plug sleeve and 25-installation groove.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-6, the movable mining flameproof and intrinsically safe control box provided in this embodiment includes two oppositely installed housings 1, a platform 6 fixedly connected to peripheral outer walls of the housings, and a central control box 7 disposed inside the housing 1, wherein a moving component is fixedly connected to an outer wall of one side of the platform 6, a buffer component is fixedly connected to an inner wall of the top of the housing 1, the buffer component includes a fixed sleeve 13 fixedly connected to an inner wall of the top of the housing 1 and an inner sleeve 12 fixedly connected to an outer wall of the top of the fixed sleeve 13, the inner sleeve 12 and an inner wall of the fixed sleeve 13 are slidably connected to an inner cylinder 16, sliding grooves are disposed on peripheral inner walls of the fixed sleeve 13, a rebound rod 14 is fixedly connected to an inner wall of the top of the sliding grooves, and a linking table fixedly connected to an outer wall of one side and the inner cylinder 16 is fixedly connected to an outer wall of one end of the rebound rod 14, the inner wall of the top of the inner connecting sleeve 12 is fixedly connected with two branch pipes 9, a middle sleeve 10 is fixedly connected between the outer walls of the other ends of the two branch pipes 9, the inner wall of the top of the middle sleeve 10 is fixedly connected with a sparking plate 17, the outer wall of the top of the inner cylinder 16 is fixedly connected with an ejector pin rod 11, the inner wall of the inner cylinder 16 is provided with a flow guide hole, and the inner wall of the inner connecting sleeve 12 is provided with a first through hole 20.
By arranging the buffer assembly, when the central control box 7 in the shell 1 is in operation, high-pressure and high-temperature gas is released to enter the inner area of the shell 1, the inner cylinder 16 is pushed to ascend gradually along with the gradual rise of the pressure, then after the flow guide hole of the inner cylinder 16 is communicated with the first through hole 20 in the inner connecting sleeve 12, the part of gas enters the inner connecting sleeve 12, the ejector pin rod 11 is in contact with the ignition sheet 17 in the central control sleeve 10, and the sparks ignite the gas in the inner connecting sleeve 12 through the branch pipe 9; the high-temperature and high-pressure gas inside the inner connecting sleeve 12 and the shell 1 can be treated, meanwhile, the inner cylinder 16 extends in a moving mode, the space inside the shell 1 is expanded, the gas pressure is reduced, and meanwhile, the inner cylinder 16 is connected to the inner wall of the inner connecting sleeve 12 in a sliding mode, so that the shell 1 is kept to be sufficiently closed.
In this embodiment, as shown in fig. 1-4, the outer wall of the bottom of the fixed sleeve 13 is connected with two lower buckling plates 15 which are oppositely arranged through a reset hinge, and the inner wall of the bottom of the middle sleeve 10 is connected with two upper buckling plates 18 which are oppositely arranged through a reset hinge; the outer wall of the inner connecting sleeve 12 is fixedly connected with an exchange shell 5, the outer wall of the inner connecting sleeve 12 is provided with second through holes 21 which are circumferentially arranged, the outer wall of the exchange shell 5 is provided with third through holes 22 which are circumferentially arranged, and the inner wall of the exchange shell 5 is provided with a sponge sleeve 19 attached with cooling liquid; the outer wall of the bottom of the inner connecting sleeve 12 is fixedly connected to the outer wall of the top of the shell 1, and the central control box 7 is of an intrinsic safety type circuit structure. Through setting up buckle 15 and upward buckle 18 down, when inner tube 16 rose, buckle 15 closed fixed cover 13 bottom region down for 1 inner space of casing and inner tube 16 space realize keeping apart, when inner connecting sleeve 12 gas combustion, can not interfere inside 1 casing, and upward buckle 18 in thimble rod 11 break away from put cover 10 after, put cover 10 bottom in upward buckle 18 seals, avoids the outer wall air to enter in the inner connecting sleeve 12 region.
In this embodiment, as shown in fig. 2 and fig. 5, a placement groove 25 is disposed on an inner wall of the bottom of the housing 1, an inner plug sleeve 24 is movably connected to an inner wall of the placement groove 25, and a ventilation tube 23, one side of which is fixedly connected to an outer wall of a middle catheter of the inner plug sleeve 24, is fixedly connected to an inner wall of the housing 1; a piston disc is arranged on the inner wall of the air exchanging cylinder 23, an electric push rod 8 is fixedly connected to the outer wall of one side of the air exchanging cylinder 23, and the outer wall of an output shaft of the electric push rod 8 is fixedly connected to the inner wall of the center of the piston disc; well accuse box 7 one side outer wall fixed connection in electric putter 8 one side outer wall, interior plug bush 24 adopts non-metallic material and both sides are provided with the fillet. By arranging the inner plug sleeve 24 of the gas exchange cylinder 23, wherein the inner plug sleeve 24 is arranged on the inner wall of the arrangement groove 25, after the two shells 1 are fixed through the platform 6, the electric push rod 8 pushes the piston disc in the gas exchange cylinder 23, so that the inner plug sleeve 24 is inflated and expanded, a gap between the two shells 1 is sealed, and the sealing performance of the interior of the shell 1 is further ensured.
In this embodiment, as shown in fig. 1, the moving assembly includes an adjusting box 2 fixedly connected to an outer wall of one side of the platform 6, and two swing arms provided on an outer wall of one side of the adjusting box 2; the outer wall of one side of the rocker arm is fixedly connected with a supporting rod 3, and the outer wall of one side of the supporting rod 3 is fixedly connected with a driving box 4; the inside revolving stage that sets up in the middle of drive box 4, 4 one side outer walls of drive box are provided with the wheel. Through setting up adjusting box 2, wherein adjusting box 2 adjusts the open angle of two rocking arms, can drive the swing of branch 3 for the relative position of drive box 4 obtains adjusting, thereby makes the removal work of this kind of device adaptation gallery and many environments at the peaceful end.
In this embodiment, as shown in fig. 1 to 6, the working process of the mobile mining flameproof and intrinsically safe control box provided by this embodiment is as follows:
step 1: when a central control box 7 in the shell 1 operates, high-pressure high-temperature gas is released to enter the inner area of the shell 1, the inner cylinder 16 is pushed to ascend gradually along with the gradual rise of the pressure, then after a flow guide hole of the inner cylinder 16 is communicated with a first through hole 20 in the inner sleeve 12, the gas enters the inner sleeve 12, the ejector pin rod 11 is in contact with an ignition sheet 17 in the central sleeve 10, and the spark ignites the gas in the inner sleeve 12 through the branch pipe 9;
step 2: when the inner cylinder 16 rises, the lower pinch plate 15 seals the bottom area of the fixed sleeve 13, so that the space inside the shell 1 is isolated from the space inside the inner cylinder 16, when the gas of the inner sleeve 12 is combusted, the inner part of the shell 1 cannot be interfered, and after the ejector pin rod 11 is separated from the middle sleeve 10, the upper pinch plate 18 seals the bottom of the middle sleeve 10;
and step 3: after the two shells 1 are fixed by the platform 6, the electric push rod 8 pushes the piston disc in the gas exchange tube 23, so that the inner plug sleeve 24 is completely inflated and expanded, and the gap between the two shells 1 is closed; wherein adjust the box 2 and adjust the open angle of two rocking arms, can drive the swing of branch 3 for drive box 4 relative position's obtaining adjusting.
In summary, in this embodiment, according to the mobile mining flameproof and intrinsically safe control of this embodiment, by providing a buffer component, when the central control box 7 inside the housing 1 is in operation, high-pressure and high-temperature gas is released to enter the internal region of the housing 1, the inner cylinder 16 is pushed to ascend gradually along with the gradual rise of pressure, then after the flow guide hole of the inner cylinder 16 is communicated with the first through hole 20 inside the inner sleeve 12, the gas enters the inner sleeve 12, at this time, the thimble rod 11 is in contact with the ignition sheet 17 inside the central sleeve 10, and the spark ignites the gas inside the inner sleeve 12 through the branch pipe 9; the high-temperature and high-pressure gas in the inner connecting sleeve 12 and the shell 1 can be treated, the inner cylinder 16 extends in a moving way, the space in the shell 1 is expanded, the gas pressure is reduced, and meanwhile, the inner cylinder 16 is connected to the inner wall of the inner connecting sleeve 12 in a sliding way, so that the shell 1 can keep enough sealing performance; by arranging the lower pinch plate 15 and the upper pinch plate 18, when the inner cylinder 16 rises, the lower pinch plate 15 seals the bottom area of the fixed sleeve 13, so that the space inside the shell 1 is isolated from the space inside the inner cylinder 16, when the gas of the inner sleeve 12 is combusted, the gas cannot interfere with the inside of the shell 1, and after the ejector pin rod 11 of the upper pinch plate 18 is separated from the middle sleeve 10, the upper pinch plate 18 seals the bottom of the middle sleeve 10, and the air on the outer wall is prevented from entering the area of the inner sleeve 12; by arranging the inner plug sleeve 24 of the gas exchange cylinder 23, wherein the inner plug sleeve 24 is arranged on the inner wall of the arrangement groove 25, when the two shells 1 are fixed through the platform 6, the electric push rod 8 pushes the piston disc in the gas exchange cylinder 23, so that the inner plug sleeve 24 is inflated and expanded, a gap between the two shells 1 is sealed, and the sealing performance of the interior of the shells 1 is further ensured; through setting up adjusting box 2, wherein adjusting box 2 adjusts the open angle of two rocking arms, can drive the swing of branch 3 for the relative position of drive box 4 obtains adjusting, thereby makes the removal work of this kind of device adaptation gallery and many environments at the peaceful end.
The above are only further embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its concept within the scope of the present invention.
Claims (10)
1. The movable mining explosion-proof and intrinsically safe control box is characterized by comprising two relatively-installed shells (1), a platform (6) fixedly connected to the peripheral outer walls of the shells and a central control box (7) arranged in the shells (1), wherein a moving assembly is fixedly connected to the outer wall of one side of the platform (6), a buffering assembly is fixedly connected to the inner wall of the top of the shells (1), the buffering assembly comprises a fixed sleeve (13) fixedly connected to the inner wall of the top of the shells (1) and an inner connecting sleeve (12) fixedly connected to the outer wall of the top of the fixed sleeve (13), the inner connecting sleeve (12) and the inner wall of the fixed sleeve (13) are slidably connected with an inner cylinder (16), the peripheral inner wall of the fixed sleeve (13) is provided with a sliding groove, the inner wall of the top of the sliding groove is fixedly connected with a rebound rod (14), and the outer wall of one end of the rebound rod (14) is fixedly connected with a connecting table fixedly connected with one side of the outer wall and the inner cylinder (16), the inner wall of the top of the inner connecting sleeve (12) is fixedly connected with two branch pipes (9), a middle sleeve (10) is fixedly connected between the outer walls of the other ends of the two branch pipes (9), a striking plate (17) is fixedly connected to the inner wall of the top of the middle sleeve (10), an ejector pin rod (11) is fixedly connected to the outer wall of the top of the inner cylinder (16), a flow guide hole is formed in the inner wall of the inner cylinder (16), and a first through hole (20) is formed in the inner wall of the inner connecting sleeve (12).
2. The movable mining flameproof and intrinsically safe control box of claim 1, characterized in that the outer wall of the bottom of the fixed sleeve (13) is connected with two lower pinch plates (15) which are oppositely arranged through a reset hinge, and the inner wall of the bottom of the middle sleeve (10) is connected with two upper pinch plates (18) which are oppositely arranged through a reset hinge.
3. The movable mining flameproof and intrinsically safe control box according to claim 1, characterized in that an exchange shell (5) is fixedly connected to the outer wall of the inner connecting sleeve (12), second through holes (21) are formed in the outer wall of the inner connecting sleeve (12) in a circumferential arrangement, third through holes (22) are formed in the outer wall of the exchange shell (5) in a circumferential arrangement, and a sponge sleeve (19) with cooling liquid is arranged on the inner wall of the exchange shell (5).
4. The movable mining flameproof and intrinsically safe control box of claim 1, characterized in that the outer wall of the bottom of the inner connecting sleeve (12) is fixedly connected to the outer wall of the top of the shell (1), and the central control box (7) adopts an intrinsically safe circuit structure.
5. The movable mining flameproof and intrinsically safe control box according to claim 1, characterized in that a placement groove (25) is formed in the inner wall of the bottom of the housing (1), an inner plug sleeve (24) is movably connected to the inner wall of the placement groove (25), and an air exchange cylinder (23) is fixedly connected to one side of the inner plug sleeve (24) and is communicated with each other.
6. The mobile mining flameproof and intrinsically safe control box of claim 5, characterized in that a piston disc is arranged on the inner wall of the gas exchange cylinder (23), an electric push rod (8) is fixedly connected to the outer wall of one side of the gas exchange cylinder (23), and the outer wall of an output shaft of the electric push rod (8) is fixedly connected to the inner wall of the center of the piston disc.
7. The movable mining flameproof and intrinsically safe control box of claim 6, characterized in that the outer wall of one side of the central control box (7) is fixedly connected to the outer wall of one side of the electric push rod (8), the inner plug sleeve (24) is made of non-metal materials, and round corners are arranged on two sides of the inner plug sleeve.
8. The mobile mining flameproof and intrinsically safe control box of claim 1, characterized in that the mobile assembly comprises an adjusting box (2) fixedly connected to the outer wall of one side of the platform (6) and two rocker arms arranged on the outer wall of one side of the adjusting box (2).
9. The mobile mining flameproof and intrinsically safe control box of claim 8, characterized in that the outer wall of one side of the rocker arm is fixedly connected with a support rod (3), and the outer wall of one side of the support rod (3) is fixedly connected with a driving box (4).
10. The mobile mining flameproof and intrinsically safe control box of claim 9, characterized in that a turntable is arranged in the middle of the drive box (4), and wheels are arranged on the outer wall of one side of the drive box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574572.0A CN113473755B (en) | 2021-05-26 | 2021-05-26 | Movable type mining explosion-proof and intrinsically safe control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110574572.0A CN113473755B (en) | 2021-05-26 | 2021-05-26 | Movable type mining explosion-proof and intrinsically safe control box |
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| Publication Number | Publication Date |
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| CN113473755A CN113473755A (en) | 2021-10-01 |
| CN113473755B true CN113473755B (en) | 2022-04-29 |
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| CN202110574572.0A Active CN113473755B (en) | 2021-05-26 | 2021-05-26 | Movable type mining explosion-proof and intrinsically safe control box |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011044487A1 (en) * | 2009-10-09 | 2011-04-14 | Shell Oil Company | Compacted coupling joint for coupling insulated conductors |
| CN212899497U (en) * | 2019-12-09 | 2021-04-06 | 昆山春本自动化设备有限公司 | Explosion-proof nitrogen spring |
| CN212048558U (en) * | 2020-04-21 | 2020-12-01 | 肇庆中彩机电技术研发有限公司 | Mining explosion-proof equipment |
| CN111420325A (en) * | 2020-04-29 | 2020-07-17 | 大连理工度达安全工程有限公司 | Dust explosion-proof integrated system |
| CN213017923U (en) * | 2020-07-22 | 2021-04-20 | 惠州市沃瑞科技有限公司 | Explosion-proof valve capable of enhancing pressure relief capacity and preventing blockage |
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