Mechanical interlocking device of explosion-proof control box

Abstract

The utility model relates to the technical field of explosion-proof control boxes, in particular to a mechanical interlocking device of an explosion-proof control box, which comprises a door plate, a protective frame arranged on the outer side of the door plate, a clamping groove arranged on the inner side of the protective frame, a first transmission bin arranged on the front side of the door plate, a control button arranged on the front side of the first transmission bin, and a protective cover arranged on the outer side of the control button. A first gear is arranged on the inner side of the first transmission bin, a second gear is arranged at the upper end of the first gear, a second transmission bin is arranged on the rear side of the door plate, a worm is arranged on the inner side of the second transmission bin, a two-way lead screw is arranged above the worm, and a worm gear is fixedly installed on the outer side of the two-way lead screw. Dustproof protection is conducted on the control button through the protective cover, the control button is rotated to drive the end of the locking frame to be disengaged from the clamping groove, at the moment, the control button controls the box body to be powered off, safe opening of the door plate is achieved, and then the control button is reversely rotated to drive the locking frame and the clamping groove to be clamped mutually, and rapid locking of the door plate is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof control box, especially explosion -proof control box mechanical interlocking device. BACKGROUND

[0002] Explosion -proof control box has the advantages such as high safety factor, strong operation function, stable performance, is applicable to the explosive gas environment, combustible dust and other dangerous places of coal mine, chemical industry, petroleum, electric power and other industries, and explosion -proof control box involves the use of mechanical interlocking structure when using, to ensure that it cannot open cover when power on, and cannot power on when opening cover.

[0003] For example patent number CN202816731U discloses a kind of explosion -proof control box mechanical interlocking device, including: with the total switch of explosion -proof control box door plate active connection's lock shaft, with the first side wall of explosion -proof control box door plate hinged protection frame, and lock device is set close to the free end of lock shaft, the lock device includes the elastic lock catch component fixedly arranged on the second side wall of explosion -proof control box door plate and the press lock component fixedly arranged on the second frame edge of protection frame, when closing protection frame, press lock component and elastic lock catch component are matched, press lock component and elastic lock catch component are all equipped with the through hole for the free end of lock shaft to pass through, when total switch is arranged on explosion -proof control box door plate, by setting the special mechanical interlocking device of the utility model, it can ensure that it cannot open cover when power on, and cannot power on when opening cover, ensure the safe operation requirement of dangerous place such as mine.

[0004] But the transmission mode of the switch structure of the existing explosion -proof control box mechanical interlocking device is prone to jam, which affects the normal use of the device, and only one side of the door plate is locked in the locked state, resulting in poor locking stability. INVENTION CONTENTS

[0005] In order to overcome the problem that the explosion -proof control box mechanical interlocking device is prone to jam and has poor locking stability.

[0006] The technical scheme of the utility model is as follows: an explosion -proof control box mechanical interlocking device, including a door plate, a protection frame is arranged on the outer side of the door plate, a clamping groove is formed in the inner side of the protection frame, a transmission bin one is arranged on the front side of the door plate, a control knob is arranged on the front side of the transmission bin one, a protection cover is arranged on the outer side of the control knob, a gear one is arranged in the inner side of the transmission bin one, a gear two is arranged on the upper end of the gear one, a transmission bin two is arranged on the rear side of the door plate, a worm is arranged in the inner side of the transmission bin two, a double -screw is arranged above the worm, a worm wheel is fixedly installed on the outer side of the double -screw, a sliding block is arranged on the left and right sides of the transmission bin two, and a locking frame is arranged on the end of the sliding block.

[0007] Preferably, the protection cover is used to protect the control knob and avoid mis-touch, the gear and the worm gear are used to drive the locking frame and the clamping groove to be clamped, and the door plate is locked, which is convenient, fast and high in stability.

[0008] Preferably, the side of the door plate is hinged to the protection frame, the front side of the transmission bin one is fixedly connected to the door plate, the control knob is rotationally connected to the front side of the transmission bin one, and the protection cover is hinged to the upper end of the transmission bin one.

[0009] Preferably, the front end of the gear one is in transmission connection with the control knob, the rear end of the gear one is in rotational connection with the door plate, the gear two is in meshing connection with the gear one, and the front end of the gear two is in rotational connection with the inner side of the transmission bin one.

[0010] Preferably, the transmission bin two is fixedly connected to the rear side of the door plate, the front end of the worm is in transmission connection with the rear end of the gear two, the rear end of the worm is in rotational connection with the inner side of the transmission bin two, and the worm gear is in meshing connection with the worm.

[0011] Preferably, the left and right ends of the bidirectional screw rod are rotationally connected to the outer side of the transmission bin two through the support plates, the support plates are fixedly connected to the rear side of the door plate, and the bidirectional screw rod is in rotational connection with the transmission bin two.

[0012] Preferably, the left and right sides of the sliding blocks are symmetrically arranged, the sliding blocks are in threaded connection with the outer side of the bidirectional screw rod, and the front side of the sliding block is in sliding connection with the door plate through the sliding rails.

[0013] Preferably, the left and right sides of the locking frames are symmetrically arranged, the locking frames are fixedly connected to the sliding blocks, and the end portions of the locking frames are in clamping connection with the clamping grooves.

[0014] The utility model discloses the beneficial effects of:

[0015] The mechanical interlocking device of the explosion-proof control box prevents dust and mis-touch of the control knob through the protection cover, prevents the control knob from being affected by the external environment and mis-touch, and when the door plate needs to be opened, rotating the control knob drives the gear one to rotate, the gear two drives the worm to rotate, the worm gear drives the bidirectional screw rod to rotate, the two sliding blocks are controlled to move close to the transmission bin two, the end portion of the locking frame is separated from the clamping groove, the door plate is unlocked, the control knob is powered off, the door plate is safely opened, and after the door plate is closed, the control knob is reversely rotated to drive the locking frame and the clamping groove to be clamped, and the door plate is quickly locked. DRAWINGS

[0016] Figure 1 The mechanical interlocking device of the explosion-proof control box is shown in the three-dimensional structure diagram Figure One ;

[0017] Figure 2The mechanical interlocking device of the explosion-proof control box is shown in the three-dimensional structure diagram Figure Two ;

[0018] Figure 3 The mechanical interlocking device of the explosion-proof control box is shown in the three-dimensional structure diagram Figure Three ;

[0019] Figure 4 The mechanical interlocking device of the explosion-proof control box is shown in the three-dimensional structure diagram Figure One ;

[0020] Figure 5 The mechanical interlocking device of the explosion-proof control box is shown in the three-dimensional structure diagram Figure Two .

[0021] The drawing mark explanation: 1, door plate; 2, protection frame; 3, clamping groove; 4, transmission bin one; 5, control knob; 6, protection cover; 7, gear one; 8, gear two; 9, transmission bin two; 10, worm; 11, bidirectional screw; 111, support plate; 12, worm wheel; 13, sliding block; 14, locking frame. DETAILED DESCRIPTION

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5 , the utility model provides a kind of example: the mechanical interlocking device of explosion-proof control box, including door plate 1, the outside of door plate 1 is provided with protection frame 2, the inside of protection frame 2 is provided with clamping groove 3, the front side of door plate 1 is provided with transmission bin one 4, the front side of transmission bin one 4 is provided with control knob 5, the outside of control knob 5 is provided with protection cover 6, the inside of transmission bin one 4 is provided with gear one 7, the upper end of gear one 7 is provided with gear two 8, the rear side of door plate 1 is provided with transmission bin two 9, the inside of transmission bin two 9 is provided with worm 10, the upper of worm 10 is provided with bidirectional screw 11, the outside of bidirectional screw 11 is fixedly installed with worm wheel 12, the left and right sides of transmission bin two 9 are provided with sliding block 13, the end of sliding block 13 is provided with locking frame 14, by rotating control knob 5 control locking frame 14 end separates and the clamping of clamping groove 3, realize the release of the locking of door plate 1, control knob 5 control box is powered off when this, realize the safe opening of door plate 1, subsequent closing door plate 1, then by reverse rotation control knob 5 drive locking frame 14 and clamping groove 3 are mutually clamped, realize the quick locking of door plate 1.

[0024] Please refer to Figures 1-4In the embodiment, the side of the door plate 1 is hinged to the protection frame 2, the front side of the transmission bin 1 is fixedly connected to the door plate 1, the front side of the control knob 5 is rotationally connected to the transmission bin 1, the upper end of the protection cover 6 is hinged to the transmission bin 1, the control knob 5 is protected by the protection cover 6, and the control knob 5 is prevented from being affected by the external environment and being accidentally touched.

[0025] Please refer to Figures 2-5 In the embodiment, the front end of the gear 7 is transmissionally connected to the control knob 5, the rear end of the gear 7 is rotationally connected to the door plate 1, the gear 8 is meshed with the gear 7, the front end of the gear 8 is rotationally connected to the inner side of the transmission bin 4, the transmission bin 9 is fixedly connected to the rear side of the door plate 1, the front end of the worm 10 is transmissionally connected to the rear end of the gear 8, the rear end of the worm 10 is rotationally connected to the inner side of the transmission bin 9, the worm wheel 12 is meshed with the worm 10, the left and right ends of the bidirectional screw rod 11 are rotationally connected to the outer side of the transmission bin 9 through the support plates 111, the support plates 111 are fixedly connected to the rear side of the door plate 1, the bidirectional screw rod 11 is rotationally connected to the transmission bin 9, the sliders 13 are symmetrically arranged, the sliders 13 are threadedly connected to the outer side of the bidirectional screw rod 11, the front side of the sliders 13 is slidingly connected to the door plate 1 through the sliding rails, the locking frames 14 are symmetrically arranged, the locking frames 14 are fixedly connected to the side of the sliders 13, and the end of the locking frame 14 is clampedly connected to the clamping groove 3. When the door plate 1 needs to be opened, the protection cover 6 is lifted, the gear 7 is driven to rotate by rotating the control knob 5, the worm 10 is driven to rotate by the gear 8, the worm wheel 12 is driven to rotate by the worm 10, the two sliders 13 are controlled to move close to the transmission bin 9, the end of the locking frame 14 is driven to disengage from the clamping groove 3, the locking of the door plate 1 is released, the control knob 5 is also controlled to be powered off by the controller, the door plate 1 is safely opened, and the door plate 1 is subsequently closed. Then, the control knob 5 is reversely rotated to drive the locking frame 14 to be clamped to the clamping groove 3, and the door plate 1 is quickly locked.

[0026] In the embodiment, the front end of the gear 7 is transmissionally connected to the control knob 5, the rear end of the gear 7 is rotationally connected to the door plate 1, the gear 8 is meshed with the gear 7, the front end of the gear 8 is rotationally connected to the inner side of the transmission bin 4, the transmission bin 9 is fixedly connected to the rear side of the door plate 1, the front end of the worm 10 is transmissionally connected to the rear end of the gear 8, the rear end of the worm 10 is rotationally connected to the inner side of the transmission bin 9, the worm wheel 12 is meshed with the worm 10, the left and right ends of the bidirectional screw rod 11 are rotationally connected to the outer side of the transmission bin 9 through the support plates 111, the support plates 111 are fixedly connected to the rear side of the door plate 1, the bidirectional screw rod 11 is rotationally connected to the transmission bin 9, the sliders 13 are symmetrically arranged, the sliders 13 are threadedly connected to the outer side of the bidirectional screw rod 11, the front side of the sliders 13 is slidingly connected to the door plate 1 through the sliding rails, the locking frames 14 are symmetrically arranged, the locking frames 14 are fixedly connected to the side of the sliders 13, and the end of the locking frame 14 is clampedly connected to the clamping groove 3. When the door plate 1 needs to be opened, the protection cover 6 is lifted, the gear 7 is driven to rotate by rotating the control knob 5, the worm 10 is driven to rotate by the gear 8, the worm wheel 12 is driven to rotate by the worm 10, the two sliders 13 are controlled to move close to the transmission bin 9, the end of the locking frame 14 is driven to disengage from the clamping groove 3, the locking of the door plate 1 is released, the control knob 5 is also controlled to be powered off by the controller, the door plate 1 is safely opened, and the door plate 1 is subsequently closed. Then, the control knob 5 is reversely rotated to drive the locking frame 14 to be clamped to the clamping groove 3, and the door plate 1 is quickly locked.

[0027] Through the above steps, the end of the locking frame 14 is controlled to be disengaged from the clamping groove 3 by rotating the control knob 5, and the unlocking of the door plate 1 is realized. At this time, the control knob 5 controls the power-off of the box body, realizes the safe opening of the door plate 1, and then after closing the door plate 1, the locking frame 14 is driven to be clamped with the clamping groove 3 by reversing the control knob 5, and the quick locking of the door plate 1 is realized, so as to solve the problems that the mechanical interlocking device of the explosion-proof control box is easy to jam, and the stability of the locking is poor.

Claims

1. An explosion-proof control box mechanical interlock device, comprising a door panel (1), characterized in that: A protective frame (2) is provided on the outer side of the door panel (1), and a locking groove (3) is provided on the inner side of the protective frame (2). A transmission compartment (4) is provided on the front side of the door panel (1), and a control button (5) is provided on the front side of the transmission compartment (4). A protective cover (6) is provided on the outer side of the control button (5). A gear (7) is provided on the inner side of the transmission compartment (4), and a gear (8) is provided on the upper end of the gear (7). A transmission compartment (9) is provided on the rear side of the door panel (1), and a worm (10) is provided on the inner side of the transmission compartment (9). A two-way lead screw (11) is provided above the worm (10), and a worm wheel (12) is fixedly installed on the outer side of the two-way lead screw (11). A slider (13) is provided on the left and right sides of the transmission compartment (9), and a locking frame (14) is provided at the end of the slider (13).

2. The explosion-proof control box mechanical interlock device according to claim 1, characterized in that: The side of the door panel (1) is hinged to the protective frame (2), the transmission compartment (4) is fixedly connected to the front of the door panel (1), the control button (5) is rotatably connected to the front of the transmission compartment (4), and the protective cover (6) is hinged to the upper end of the transmission compartment (4).

3. The explosion-proof control box mechanical interlocking device according to claim 1, characterized in that: The front end of gear 1 (7) is connected to the control button (5) for transmission, the rear end of gear 1 (7) is connected to the door panel (1) for rotation, gear 2 (8) meshes with gear 1 (7), and the front end of gear 2 (8) is connected to the inner side of transmission compartment 1 (4) for rotation.

4. The explosion-proof control box mechanical interlocking device according to claim 1, characterized in that: The transmission compartment 2 (9) and the rear side of the door panel (1) are fixedly connected. The front end of the worm (10) and the rear end of the gear 2 (8) are connected in a transmission manner. The rear end of the worm (10) and the inner side of the transmission compartment 2 (9) are rotatably connected. The worm wheel (12) and the worm (10) mesh with each other.

5. The explosion-proof control box mechanical interlocking device according to claim 1, characterized in that: The left and right ends of the double-acting screw (11) extend to the outside of the transmission compartment 2 (9) and are rotatably connected to the support plate (111). The support plate (111) is fixedly connected to the rear side of the door panel (1), and the double-acting screw (11) is rotatably connected to the transmission compartment 2 (9).

6. The explosion-proof control box mechanical interlocking device according to claim 1, characterized in that: The slider (13) is arranged symmetrically on the left and right. The slider (13) and the outer side of the two-way lead screw (11) are connected by threads. The front side of the slider (13) and the door panel (1) are slidably connected by a slide rail.

7. The explosion-proof control box mechanical interlocking device according to claim 1, characterized in that: The locking frame (14) is arranged symmetrically on the left and right. The locking frame (14) and the slider (13) are fixedly connected on the side. The end of the locking frame (14) is engaged with the locking groove (3).

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