Explosion-proof shell uncovering power-off protection device

Abstract

The utility model discloses an explosion-proof shell uncovering power-off protection device, and relates to the technical field of power-off protection devices, the explosion-proof shell uncovering power-off protection device comprises an explosion-proof box, the explosion-proof box is connected with a sealing door through a hinge, a square plate is fixedly installed in the explosion-proof box, square grooves are arranged in the square plate in an array mode, a driving plate is arranged in the square grooves in a penetrating mode, and the driving plate is connected with the sealing door through a hinge. A through groove is formed in the driving plate, a limiting block is fixedly installed in the square groove, and a driving spring is fixedly installed on the limiting block. According to the utility model, the conductive columns and the conductive cylinders are installed, so that automatic power-off processing is facilitated when internally installed electrical elements are overhauled and maintained, after the sealing door is opened, the sealing door does not limit one end of the driving plate any more, the driving spring resets to push the driving plate to move, and the driving plate moves to drive the conductive columns to move; and after the conductive column is separated from the conductive cylinder, the electric appliance element is powered off, so that hot-line work is avoided, and the safety of the explosion-proof shell uncovering power-off protection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of explosion-proof enclosure uncovering power-off protection device, especially a kind of explosion-proof enclosure uncovering power-off protection device. BACKGROUND

[0002] Explosion-proof enclosure uncovering power-off protection device is an important safety equipment, mainly used to prevent fire or explosion caused by opening equipment shell in dangerous environment, such as flammable and explosive place, the device can monitor the state of equipment in real time, prevent equipment damage caused by environmental changes (such as moisture, dust) or human operation, prolong equipment life, used in flammable and explosive environment such as oil and gas production, chemical plant, applicable to mine and related facilities, ensure miner safety, adopt anticorrosive material, ensure stability and reliability in harsh environment.

[0003] However, the existing explosion-proof shell must be powered off before operation when repairing the internal installed electrical components. But usually external personnel need to handle power-off, which may cause certain danger due to forgetting to power off. Therefore, we propose an explosion-proof enclosure uncovering power-off protection device. UTILITY MODEL CONTENT

[0004] The utility model discloses an explosion-proof enclosure uncovering power-off protection device, which aims to solve the technical problem of inconvenient rotation power-off when repairing internal electrical components.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An explosion-proof enclosure uncovering power-off protection device, comprising an explosion-proof box, a sealing door connected to the explosion-proof box through a hinge, a square plate fixedly installed inside the explosion-proof box, a square groove arranged in the square plate, a driving plate penetrating the square groove, a through groove provided in the driving plate, a limiting block fixedly installed in the square groove and extending into the through groove at one end, a driving spring fixedly installed on the limiting block and fixedly connected to the through groove at the other end, a conductive column fixedly installed at one end of the driving plate, and a conductive cylinder fixedly installed in the square groove corresponding to the conductive column.

[0007] An installation plate is fixedly installed in the explosion-proof box, and a closing assembly is arranged on the installation plate.

[0008] Preferably, a positioning block is fixedly installed on the explosion-proof box, and a hole is arranged at the center position of the positioning block, a control button is arranged on the sealing door, and a lock buckle assembly for closing the sealing door is arranged on the sealing door.

[0009] Preferably, an electrically conductive plate is fixedly installed in the explosion-proof box and electrically connected to the conductive cylinder.

[0010] Preferably, the closing assembly comprises a protective shell, a receiving groove, a closing plate and an adjusting mechanism, the protective shell is fixedly installed on the mounting plate, the receiving groove is symmetrically arranged inside the protective shell, the closing plate is arranged inside the receiving groove, and the symmetrically arranged closing plates are clamped on one side, the adjusting mechanism is arranged on the protective shell, and the adjusting mechanism is connected with the protective shell.

[0011] Preferably, the adjusting mechanism comprises a servo motor, a threaded rod, a connecting block and a threaded ring, the servo motor is fixedly installed on the protective shell, one end of the threaded rod is fixedly connected with the output end of the servo motor, the threaded ring is threadedly connected on the threaded rod, and the connecting block is fixedly installed on the threaded ring, and one end of the connecting block is fixedly connected with the corresponding closing plate.

[0012] Preferably, the closing plate is inlaid with an air slot, and the air slot is arrayed with air injection holes, and the air injection holes are fixedly installed with protective nets.

[0013] Preferably, a connecting head is fixedly installed on the air slot, and a connecting pipe is fixedly installed in the closing plate, and one end of the connecting pipe is connected with the connecting head.

[0014] Preferably, a wind box is fixedly installed in the protective shell, and a filter screen is fixedly installed in the wind box.

[0015] Preferably, a fan is fixedly installed in the wind box, and a conveying pipe is connected with the output end of the fan, and one end of the conveying pipe is connected with the connecting pipe.

[0016] Preferably, the fan and the servo motor are electrically connected with the control button.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The electrically conductive column and the electrically conductive cylinder are installed, when the internal electric element is maintained, automatic power-off treatment is facilitated, after the sealing door is opened, the sealing door no longer limits one end of the driving plate, the driving spring reset pushes the driving plate to move, the driving plate moves to drive the electrically conductive column to move, the electrically conductive column and the electrically conductive cylinder are separated, the electric element is powered off, and then live working is avoided, and the safety of the explosion-proof shell opening power-off protection device is improved.

[0019] 2. The utility model discloses through the protection shell and closing board of installation convenient through the protection of the electric element of installation, electric element is installed on the mounting plate, after the contact of two groups of closing board, will carry out the protection to electric element installation space, improve the protection, need to overhaul electric element, servo motor work will drive screw rod rotation, and screw rod rotation will make the movement of screw ring, and the movement of screw ring will drive closing board to move through the connecting block, and after closing board moves into the storage groove, no longer carries out the protection to electric element, and then can overhaul and maintain electric element, can improve the protection.

[0020] 3. The utility model discloses through the fan and air jet hole of installation convenient to the heat dissipation treatment of electric element of installation, and the air in the air bellow is extracted and is sent through the fan work, and then will produce the wind power flow, and the wind power flow enters the inside after the conveying pipe, and will make the wind power flow enter the inside through the conveying pipe, and will make the wind power flow enter the inside through the connecting pipe, and the wind power that enters the inside through the air tank will flow to the outside through the air jet hole, and then the wind power flow to the surface of electric element, can carry out the cooling treatment to electric element, and then prolongs the service life of electric element. ACCURACY OF DRAWINGS

[0021] Figure 1 The utility model provides an overall structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0022] Figure 2 The utility model provides an explosion-proof box structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0023] Figure 3 The utility model provides an installation plate structure plan view of a flameproof enclosure uncovering power-off protection device.

[0024] Figure 4 The utility model provides a square plate structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0025] Figure 5 The utility model provides a drive plate structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0026] Figure 6 The utility model provides a protection shell structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0027] Figure 7 The utility model provides a closing plate structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0028] Figure 8 The utility model provides an air bellow structure schematic diagram of a flameproof enclosure uncovering power-off protection device.

[0029] Figure 9 A kind of wind channel structure schematic diagram of the explosion-proof enclosure uncapping power-off protection device is proposed in the utility model.

[0030] In the drawing: 1, explosion-proof box;2, positioning block;3, sealing door;4, control button;5, lock catch assembly;6, square plate;7, square groove;8, driving plate;9, through groove;10, limit block;11, driving spring;12, conductive column;13, conductive cylinder;14, conductive plate;15, mounting plate;16, protective shell;17, storage groove;18, closure plate;19, servo motor;20, threaded rod;21, connecting block;22, threaded ring;23, wind channel;24, connecting pipe;25, air bellow;26, filter screen;27, fan;28, conveying pipe;29, air jet hole;30, protective net;31, connector. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0032] REFERENCE Figures 1 to 7The utility model provides a kind of explosion-proof enclosure uncover power-off protection device, including explosion-proof box 1, explosion-proof box 1 is connected with sealing door 3 by hinge, square plate 6 is fixedly installed in explosion-proof box 1, square slot 7 is arranged in square plate 6, drive plate 8 is arranged in square slot 7, drive plate 8 is provided with through slot 9, limit block 10 is fixedly installed in square slot 7, and limit block 10 one end extends to the inside of through slot 9, drive spring 11 is fixedly installed on limit block 10, and drive spring 11 other end is fixedly connected with through slot 9, drive plate 8 one end is fixedly installed with electrically conductive column 12, square slot 7 is fixedly installed with electrically conductive cylinder 13 corresponding to electrically conductive column 12, mounting plate 15 is fixedly installed in explosion-proof box 1, and closing assembly is arranged on mounting plate 15, electrically conductive plate 14 is fixedly installed in explosion-proof box 1, and electrically conductive plate 14 is electrically connected with electrically conductive cylinder 13, when using explosion-proof enclosure uncover power-off protection device, mounting plate 15 provides mounting space for electrical component, the wire of electrical component connected with electrically conductive column 12 in outside is electrically connected, electrical component is electrically connected with electrically conductive cylinder 13 by electrically conductive plate 14, when electrically conductive column 12 is inserted into electrically conductive cylinder 13, electrical component will work normally, when the electrical component in the inside of explosion-proof enclosure uncover power-off protection device is overhauled and maintained, it often needs to be overhauled after outside power-off, to avoid the occurrence of danger, when forgetting power-off, after opening sealing door 3, sealing door 3 no longer positions one end of drive plate 8, and drive spring 11 reset will push drive plate 8 to move, drive plate 8 moves and will drive electrically conductive column 12 to move, after electrically conductive column 12 is separated from electrically conductive cylinder 13, electrical component will be powered off, to avoid live working, improve safety, electrical component is installed on mounting plate 15, and closing assembly will be closed to the installation site of electrical component.

[0033] Refer to Figure 1 Positioning block 2 is fixedly installed on explosion-proof box 1, and hole is arranged at the center position of positioning block 2, control button 4 is arranged on sealing door 3, lock catch assembly 5 for closing sealing door 3 is arranged on sealing door 3, positioning installation is carried out to explosion-proof box 1 by cooperation of positioning block 2 using bolt, the work of explosion-proof enclosure uncover power-off protection device is controlled by control button 4, and the position of sealing door 3 can be positioned by lock catch assembly 5.

[0034] Refer to Figure 6 And Figure 7The closing assembly comprises a protective shell 16, a receiving groove 17, closing plates 18 and an adjusting mechanism, the protective shell 16 is fixedly installed on the mounting plate 15, the receiving groove 17 is symmetrically arranged inside the protective shell 16, the closing plates 18 are arranged inside the receiving groove 17, and the symmetrically arranged closing plates 18 are clamped on one side, the adjusting mechanism is arranged on the protective shell 16 and connected with the protective shell 16, and the two groups of closing plates 18 are in contact, thereby protecting the electrical component mounting space and improving the protection performance; when the electrical component needs to be maintained, the adjusting mechanism is moved to drive the closing plates 18 to move, the closing plates 18 are moved into the receiving groove 17, and the electrical component is no longer protected, thereby the electrical component can be maintained.

[0035] With reference to Figure 7 The adjusting mechanism comprises a servo motor 19, a threaded rod 20, a connecting block 21 and a threaded ring 22, the servo motor 19 is fixedly installed on the protective shell 16, one end of the threaded rod 20 is fixedly connected with the output end of the servo motor 19, the threaded ring 22 is threadedly connected with the threaded rod 20, and the connecting block 21 is fixedly installed on the threaded ring 22 and fixedly connected with the corresponding closing plate 18 at one end, when the adjusting mechanism is moved, the servo motor 19 is driven to rotate the threaded rod 20, the threaded rod 20 is driven to move the threaded ring 22, and the threaded ring 22 is driven to move the closing plate 18 through the connecting block 21.

[0036] With reference to Figure 6 And Figure 9 The closing plate 18 is embedded with an air groove 23, the air groove 23 is arranged with air injection holes 29, and the air injection holes 29 are fixedly installed with protective nets 30, the closing plate 18 provides installation space for the air groove 23, the air groove 23 provides installation space for the air injection holes 29, the wind power entering the air groove 23 flows to the outside through the air injection holes 29, and then the wind power flows to the surface of the electrical component, so that the electrical component can be cooled and the service life of the electrical component is prolonged.

[0037] With reference to Figure 7 And Figure 9 The air groove 23 is fixedly installed with a connecting head 31, the closing plate 18 is fixedly installed with a connecting pipe 24, one end of the connecting pipe 24 is connected with the connecting head 31, the air groove 23 is connected with the connecting pipe 24 through the connecting head 31, and the wind power flowing into the connecting pipe 24 flows into the air groove 23 through the connecting pipe 24.

[0038] With reference to Figure 6 The protective shell 16 is fixedly installed with a wind box 25, and the wind box 25 is fixedly installed with a filter screen 26, the protective shell 16 provides installation space for the wind box 25, and the wind box 25 provides installation space for the filter screen 26.

[0039] With reference to Figure 8The fan 27 is fixedly installed in the air bellow 25, the output end of the fan 27 is connected with the conveying pipe 28, one end of the conveying pipe 28 is communicated with the connecting pipe 24, the fan 27 and the servo motor 19 are electrically connected with the control button 4, the fan 27 works to extract and convey the air in the air bellow 25, and then wind power flow is generated, the wind power flow enters into the conveying pipe 28, and then the wind power flow enters into the connecting pipe 24 through the conveying pipe 28, and then the wind power flow enters into the air groove 23 through the connecting pipe 24.

[0040] Principle: When using, the installation plate 15 provides installation space for the electrical element, the wire connected with the electrical element is electrically connected with the conductive column 12, the electrical element is electrically connected with the conductive cylinder 13 through the conductive plate 14, when the conductive column 12 is inserted into the conductive cylinder 13, the electrical element works normally, when the electrical element in the explosion-proof enclosure opening cover protection device is maintained, the electrical element is maintained after the external power is cut off, so that the danger is avoided, when the power is forgotten, the sealing door 3 no longer limits one end of the driving plate 8 after the sealing door 3 is opened, the driving spring 11 is reset to push the driving plate 8 to move, the driving plate 8 moves to drive the conductive column 12 to move, the conductive column 12 is separated from the conductive cylinder 13, so that the electrical element is powered off, thereby avoiding live working and improving safety, the electrical element is installed on the installation plate 15, the two groups of closed plates 18 are in contact, so that the electrical element installation space is protected, the protection is improved, when the electrical element needs to be maintained, the servo motor 19 works to drive the threaded rod 20 to rotate, the threaded rod 20 rotates to drive the threaded ring 22 to move, the threaded ring 22 moves to drive the closed plate 18 to move through the connecting block 21, the closed plate 18 moves into the storage groove 17, so that the electrical element is no longer protected, thereby the electrical element can be maintained, the protection effect is further improved, the fan 27 works to extract and convey the air in the air bellow 25, so that wind power flow is generated, the wind power flow enters into the conveying pipe 28, and then the wind power flow enters into the connecting pipe 24 through the conveying pipe 28, and then the wind power flow enters into the air groove 23 through the connecting pipe 24, the wind power in the air groove 23 flows to the outside through the air injection hole 29, so that the wind power flows to the surface of the electrical element, the electrical element is cooled, thereby prolonging the service life of the electrical element.

[0041] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An explosion-proof enclosure uncapping power-off protection device, comprising an explosion-proof box (1), characterized in that, The explosion-proof box (1) is connected with a sealing door (3) through a hinge, a square plate (6) is fixedly installed inside the explosion-proof box (1), square grooves (7) are arranged inside the square plate (6), a driving plate (8) penetrates through the square grooves (7), a through groove (9) is arranged inside the driving plate (8), limit blocks (10) are fixedly installed inside the square grooves (7), one end of the limit blocks (10) extends into the through groove (9), driving springs (11) are fixedly installed on the limit blocks (10), the other end of the driving springs (11) is fixedly connected with the through groove (9), a conductive column (12) is fixedly installed at one end of the driving plate (8), and a conductive cylinder (13) corresponding to the conductive column (12) is fixedly installed inside the square grooves (7). The explosion-proof box (1) is fixedly installed with a mounting plate (15), and the mounting plate (15) is provided with a closing assembly.

2. A flameproof enclosure uncoupling and de-energizing protection device according to claim 1, characterized in that, The explosion-proof box (1) is fixedly installed with a positioning block (2), and a hole is arranged at the center position of the positioning block (2), a control button (4) is arranged on the sealing door (3), and a lock catch assembly (5) for closing the sealing door (3) is arranged on the sealing door (3).

3. A flameproof enclosure uncoupling and de-energizing protection device according to claim 1, characterized in that, The explosion-proof box (1) is fixedly installed with a conductive plate (14), and the conductive plate (14) is electrically connected with the conductive cylinder (13).

4. The flameproof enclosure uncaging and de-energizing protection device of claim 1, wherein, The closing assembly comprises a protective shell (16), a receiving groove (17), a closing plate (18) and an adjusting mechanism, the protective shell (16) is fixedly installed on the mounting plate (15), the receiving groove (17) is symmetrically arranged inside the protective shell (16), the closing plate (18) penetrates through the receiving groove (17), and the symmetrically arranged closing plates (18) are clamped on one side, and the adjusting mechanism is arranged on the protective shell (16) and connected with the protective shell (16).

5. A flameproof enclosure uncoupling and de-energizing protection device according to claim 4, characterized in that, The adjusting mechanism comprises a servo motor (19), a threaded rod (20), a connecting block (21) and a threaded ring (22), the servo motor (19) is fixedly installed on the protective shell (16), one end of the threaded rod (20) is fixedly connected with the output end of the servo motor (19), the threaded ring (22) is threadedly connected on the threaded rod (20), the connecting block (21) is fixedly installed on the threaded ring (22), and one end of the connecting block (21) is fixedly connected with the corresponding closing plate (18).

6. A flameproof enclosure uncoupling and de-energizing protection device according to claim 5, characterized in that, The closing plate (18) is inlaid with a wind groove (23), and air injection holes (29) are arranged in an array on the wind groove (23), and a protective net (30) is fixedly installed in the air injection holes (29).

7. A flameproof enclosure uncoupling and de-energizing protection device according to claim 6, characterized in that, A connecting head (31) is fixedly installed on the wind groove (23), a connecting pipe (24) is fixedly installed inside the closing plate (18), and one end of the connecting pipe (24) is connected with the connecting head (31).

8. A flameproof enclosure uncoupling and de-energizing protection device according to claim 7, characterized in that, A wind box (25) is fixedly installed inside the protective shell (16), and a filter screen (26) is fixedly installed inside the wind box (25).

9. A flameproof enclosure uncoupling and de-energizing protection device according to claim 8, characterized in that, The fan (27) is fixedly installed inside the wind box (25), the output end of the fan (27) is connected with the conveying pipe (28), and one end of the conveying pipe (28) is communicated with the connecting pipe (24).

10. A flameproof enclosure uncoupling and de-energizing protection device according to claim 9, characterized in that, The fan (27) and the servo motor (19) are electrically connected with the control button (4).

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