Quick door opening structure of mining intrinsically safe product

Abstract

The utility model discloses a quick-opening door structure of a mining intrinsically safe product, which relates to the field of electrical control and comprises a box body, a screwing door is arranged on one side of the box body through bolts, a hinge is mounted between the screwing door and the box body, two sliding rails which are symmetrically distributed relative to the center line of the box body are fixedly arranged on the same side of the box body, and the sliding rails are connected with the box body through bolts. A quick-opening door is arranged between the two sliding rails in a sliding mode, and the quick-opening door and the sliding rails are symmetrically distributed about the center line of the box body. According to the utility model, the power switch can be turned off and the limitation on the quick-opening door can be cancelled only by rotating the handle anticlockwise by 90 degrees, the quick-opening door can slide on the two slide rails to drive the plug 9 to be separated from the limiting groove, so that the screw door can be opened and the interior of the box body can be maintained or overhauled after the bolt is screwed off, the operation is simple and is completed in one step, and the operation is convenient. The quick-opening door structure solves the problems that an existing quick-opening door structure of a mining intrinsically-safe product explosion-proof electric cabinet is too many in operation steps, complex and needs to be improved and simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the electrical control field especially relates to a quick door structure of mine intrinsic safety type product. BACKGROUND

[0002] With the development of coal industry, the underground water leakage accident also frequently occurs, the traditional rescue mode seriously affects the time and efficiency of the rescue, and the mine rapid drainage rescue complete technical equipment gradually gets wide application at present. Because the gas and coal dust concentration is big in the coal mine, it is an explosive place, so the explosion-proof and intrinsic safety type electric control box is selected as an important component of the mine rapid drainage rescue complete technical equipment. The existing explosion-proof electric control box is the explosion-proof shell composed of the box and the door cover, the opening and closing of the door cover adopts the quick door plus screw fastening combined mode, and the input power needs to be cut off to open during daily maintenance or overhaul.

[0003] The existing patent publication number CN221227963U, named as a kind of explosion-proof and intrinsic safety type electric control box mechanical linkage quick door, proposes that the utility model structure is safe and reliable, realizes the purpose that screw door can only be opened under the condition of power failure, the structure is simple and reliable, improves the safety performance of electric control box, effectively prevents the accident caused by mistake live cover opening.

[0004] But the technology disclosed in the existing patent publication number CN221227963U shows that the working principle is to turn off the power switch, rotate the handle to the maximum position, push the locking pin shaft to the card slot, rotate the push rod, and the two door shells of the electric control box can be opened, therefore, there are too many operation steps, which are relatively complex, and need to be improved and simplified, therefore, it is necessary to provide a quick door structure of mine intrinsic safety type product to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a quick door structure of mine intrinsic safety type product to solve the problems of too many operation steps and complexity of the existing quick door structure of mine intrinsic safety type product.

[0006] To achieve the above object, the utility model provides the following technical scheme: a quick door structure of mine intrinsic safety type product, including the box, one side of the box is provided with screw door through bolt, the screw door and the box are installed with hinge, two slide rails that are symmetrically distributed about the center line of the box are fixedly arranged on the same side of the box, the quick door is slidably arranged between the two slide rails, and the quick door and the slide rail are symmetrically distributed about the center line of the box.

[0007] The quick opening door is fixed with two limiting blocks symmetrically distributed about the center line of the quick opening door, one end of the limiting block extending from the end of the quick opening door is fixed with a slot, the side of the box body is fixed with two support rods symmetrically distributed about the center line of the box body, the support rod is provided with a sliding slot, the sliding slot and the slot correspondingly are provided with a movable rod sliding therebetween, the two movable rods are fixed with a connecting rod at the end away from the limiting block, the middle of the two support rods is provided with a power switch fixedly connected with the box body, the power switch is fixed with an extension rod at the end away from the box body, one side of the extension rod away from the power switch is fixed with a handle, when the power switch is in the open state, the extension rod is in the vertical state, and the movable rod is inserted into the slot.

[0008] The support rod is internally provided with an auxiliary assembly.

[0009] Preferably, the auxiliary assembly comprises a connecting ring fixedly arranged at the outer circle of the movable rod and movably attached to the inner wall of the sliding slot, the inner wall of the sliding slot is fixedly provided with a fixed ring, and the spring is fixedly connected between the end of the sliding slot and the connecting ring.

[0010] Preferably, one side of the extension rod is provided with two first magnets symmetrically distributed about the center line of the extension rod, the side of the box body is fixedly provided with a first fixed rod and a second fixed rod, and the first fixed rod and the second fixed rod are both provided with second magnets, when the power switch is in the open state, one of the first magnets is attached to the second magnet on the first fixed rod, and when the power switch is rotated counterclockwise by ninety degrees and is in the closed state, the other first magnet is attached to the second magnet on the second fixed rod.

[0011] Preferably, one side of the extension rod is provided with two first magnets symmetrically distributed about the center line of the extension rod, the side of the box body is fixedly provided with a first fixed rod and a second fixed rod, and the first fixed rod and the second fixed rod are both provided with second magnets, when the power switch is in the open state, one of the first magnets is attached to the second magnet on the first fixed rod, and when the power switch is rotated counterclockwise by ninety degrees and is in the closed state, the other first magnet is attached to the second magnet on the second fixed rod.

[0012] Preferably, one side of the extension rod is provided with two first magnets symmetrically distributed about the center line of the extension rod, the side of the box body is fixedly provided with a first fixed rod and a second fixed rod, and the first fixed rod and the second fixed rod are both provided with second magnets, when the power switch is in the open state, one of the first magnets is attached to the second magnet on the first fixed rod, and when the power switch is rotated counterclockwise by ninety degrees and is in the closed state, the other first magnet is attached to the second magnet on the second fixed rod.

[0013] Preferably, one side of the extension rod is provided with two first magnets symmetrically distributed about the center line of the extension rod, the side of the box body is fixedly provided with a first fixed rod and a second fixed rod, and the first fixed rod and the second fixed rod are both provided with second magnets, when the power switch is in the open state, one of the first magnets is attached to the second magnet on the first fixed rod, and when the power switch is rotated counterclockwise by ninety degrees and is in the closed state, the other first magnet is attached to the second magnet on the second fixed rod.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. Only need to rotate the handle counterclockwise by ninety degrees, the power switch can be closed and the restriction on the quick opening door can be cancelled, the operation is simple, one step to the destination, the problem that the operation steps of the quick opening door structure of the existing mine intrinsic safety type product explosion-proof electric control box are too many and relatively complex and need to be improved and simplified is solved.

[0016] 2、When the handle is rotated clockwise by 90 degrees, the extension rod no longer abuts against the connecting rod, and the spring restores elasticity, thereby pulling the connecting ring to the fixed ring position, thereby driving the movable rod to be inserted into the slot, automatic homing is realized, and the spring is still in a stretched state and has elasticity, thereby avoiding the movable rod from sliding out of the slot;

[0017] 3、When the power switch is in an open state, one of the first magnets abuts against the second magnet on the first fixed rod, so that accidental touching of the handle to drive the extension rod to rotate is prevented, when the power switch is rotated counterclockwise by 90 degrees and is in a closed state, the other first magnet abuts against the second magnet on the second fixed rod, so that the position of the extension rod is stabilized, and the problem that the extension rod is driven to rotate and homing by the spring elastic force is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the quick opening door structure of the mine-used intrinsically safe product.

[0019] Figure 2 It is a structure schematic view when the movable rod is separated from the slot.

[0020] Figure 3 It is a three-dimensional structure schematic view of the quick opening door structure of the mine-used intrinsically safe product. Figure 2 Partial structure enlarged schematic view.

[0021] Figure 4 It is a sectional structure schematic view of the auxiliary assembly.

[0022] Figure 5 It is a structure schematic view when the quick opening door slides on the slide rail.

[0023] In the figure: 1, box body; 2, screw door; 3, slide rail; 4, quick opening door; 5, limiting block; 6, supporting rod; 7, connecting rod; 8, wear plate; 9, power switch; 10, extension rod; 11, handle; 12, first magnet; 13, first fixed rod; 14, second fixed rod; 15, second magnet; 16, connecting ring; 17, fixed ring; 18, spring; 19, plugboard. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] The present application provides a quick opening door structure of a mine-used intrinsically safe product. Figures 1-5The quick opening door structure of a mine-used intrinsically safe product shown in the application comprises a box body 1, a screw door 2 provided on one side of the box body 1 through bolts, a hinge installed between the screw door 2 and the box body 1, two slide rails 3 symmetrically distributed about the center line of the box body 1 fixedly provided on the same side of the box body 1, a quick opening door 4 slidingly provided between the two slide rails 3, the quick opening door 4 and the screw door 2 symmetrically distributed about the center line of the box body 1, a power switch 9 provided on the side of the box body 1, and an explosion-proof electric control box composed of the box body 1, the screw door 2 and the quick opening door 4. The screw door 2 and the quick opening door 4 form a door cover of the explosion-proof electric control box. The switch of the door cover adopts a combination of the quick opening door 4 and the screw fastening. When the door cover is opened during daily maintenance or repair, the power switch 9 needs to be powered off to open the screw door 2, so as to maintain or repair the box body 1. However, accidents often occur due to the negligence of the maintenance personnel in opening the door cover while maintaining or repairing.

[0026] Therefore, the quick opening door 4 is fixedly provided with two limiting blocks 5 symmetrically distributed about the center line of the quick opening door 4. One end of the limiting block 5 extending out of the end of the quick opening door 4 is fixedly provided with a slot. Two support rods 6 symmetrically distributed about the center line of the box body 1 are fixedly provided on the side of the box body 1. The support rod 6 is provided with a sliding groove. The sliding groove and the slot corresponding to each other are slidingly provided with a movable rod. The two ends of the movable rod away from the limiting block 5 are fixedly provided with a connecting rod 7. The power switch 9 is located in the middle of the two support rods 6. The end of the power switch 9 away from the box body 1 is fixedly provided with an extension rod 10. One side of the extension rod 10 away from the power switch 9 is fixedly provided with a handle 11. When the power switch 9 is in the open state, the extension rod 10 is in the vertical state, and the movable rod is inserted into the slot.

[0027] Specifically, when the quick opening door 4 needs to be slid to cancel the restriction of the screw door 2, the handle 11 needs to be counterclockwise rotated by ninety degrees, so as to slowly push the connecting rod 7 to displace from one end of the extension rod 10, so as to drive the two movable rods to disengage from the slot, so that the quick opening door 4 can slide on the slide rail 3, thereby canceling the restriction of the screw door 2. When the handle 11 is counterclockwise rotated by ninety degrees, the power switch 9 is counterclockwise rotated by ninety degrees, so that the power switch 9 changes from the open state to the closed state. Therefore, only the handle 11 needs to be counterclockwise rotated by ninety degrees, so as to close the power switch 9 and cancel the restriction of the quick opening door 4. The operation is simple and one-step, and solves the problem that the existing quick opening door structure of the explosion-proof electric control box of the mine-used intrinsically safe product has too many operation steps and is relatively complex, which needs to be improved and simplified.

[0028] When the handle 11 is rotated clockwise by 90 degrees, the power switch 9 is turned on, and the movable rod needs to be automatically inserted into the slot for resetting, so an auxiliary assembly is arranged inside the supporting rod 6. The auxiliary assembly comprises a connecting ring 16 fixedly arranged at the outer circle of the movable rod and movably attached to the inner wall of the sliding slot. The inner wall of the sliding slot is fixedly provided with a fixed ring 17. A spring 18 is fixedly connected between the connecting ring 16 and the fixed ring 17. When the power switch 9 is in the open state, the connecting ring 16 is movably attached to the fixed ring 17.

[0029] Specifically, when the handle 11 is rotated clockwise by 90 degrees, the extension rod 10 no longer abuts against the connecting rod 7, and the spring 18 restores elasticity, thereby pulling the connecting ring 16 to the position of the fixed ring 17, so as to drive the movable rod to be inserted into the slot. At this time, the spring 18 is still in a stretched state and has elasticity, thereby avoiding the movable rod from sliding out of the slot.

[0030] When the extension rod 10 is in a horizontal state, in order to stabilize the position of the extension rod 10 and avoid the problem that the extension rod 10 is pushed to rotate back to the original position by the spring 18, two first magnets 12 symmetrically distributed about the center line of the extension rod 10 are arranged on one side of the extension rod 10. The side surface of the box body 1 is fixedly provided with a first fixed rod 13 and a second fixed rod 14. The first fixed rod 13 and the second fixed rod 14 are both provided with a second magnet 15. Therefore, when the power switch 9 is in the open state, one of the first magnets 12 is attached to the second magnet 15 on the first fixed rod 13, thereby preventing the extension rod 10 from rotating due to accidental contact with the handle 11 and driving the power switch 9 to rotate. When the power switch 9 is rotated counterclockwise by 90 degrees and is in the closed state, the other first magnet 12 is attached to the second magnet 15 on the second fixed rod 14, thereby stabilizing the position of the extension rod 10 and avoiding the problem that the extension rod 10 is pushed to rotate back to the original position by the spring 18.

[0031] In order to enhance the wear resistance of the connecting rod 7, a wear-resistant plate 8 is fixedly arranged on the side of the connecting rod 7 facing the extension rod 10. Through the installation of the wear-resistant plate 8, the service life of the connecting rod 7 is prolonged.

[0032] Further, a plurality of anti-skid patterns uniformly distributed in a ring shape are fixedly arranged at the outer circle of the handle 11. In this way, when the handle 11 is rotated, the hand is prevented from slipping.

[0033] Further, the fast-opening door 4 is fixedly provided with an insertion plate 19 at one end close to the screw door 2. The screw door 2 is fixedly provided with a limiting groove at one end close to the fast-opening door 4, which is engaged with the insertion plate 19. When the movable rod is displaced out of the slot, the fast-opening door 4 can slide on the two sliding rails 3, so as to drive the insertion plate 19 to be separated from the limiting groove. Therefore, after the bolt is unscrewed, the screw door 2 can be opened, and the inside of the box body 1 can be maintained or overhauled.

Claims

1. A quick opening door structure of a mining intrinsically safe product comprising a cabinet (1), characterized in that: One side of the box (1) is provided with a screw door (2) through bolts, the screw door (2) and the box (1) are installed with a hinge, the same side of the box (1) is fixedly provided with two slide rails (3) which are symmetrically distributed about the center line of the box (1), a quick opening door (4) is slidably arranged between the two slide rails (3), and the quick opening door (4) and the slide rails (3) are symmetrically distributed about the center line of the box (1); The quick opening door (4) is fixedly provided with two limiting blocks (5) which are symmetrically distributed about the center line of the quick opening door (4), one end of the limiting block (5) extending out of the end of the quick opening door (4) is fixedly provided with a slot, the side of the box (1) is fixedly provided with two supporting rods (6) which are symmetrically distributed about the center line of the box (1), the supporting rod (6) is provided with a sliding groove, the sliding groove and the slot corresponding to each other are slidably provided with a movable rod, the ends of the two movable rods away from the limiting block (5) are fixedly provided with a connecting rod (7), the middle of the two supporting rods (6) is provided with a power switch (9) fixedly connected with the box (1), one end of the power switch (9) away from the box (1) is fixedly provided with an extension rod (10), one side of the extension rod (10) away from the power switch (9) is fixedly provided with a handle (11), when the power switch (9) is in the open state, the extension rod (10) is in the vertical state, and the movable rod is inserted into the slot; The supporting rod (6) is provided with an auxiliary assembly.

2. The quick opening door structure of an intrinsically safe product for mining as claimed in claim 1, characterized in that: The auxiliary assembly comprises a connecting ring (16) fixedly arranged at the outer circle of the movable rod and movably attached to the inner wall of the sliding groove, the inner wall of the sliding groove is fixedly provided with a fixed ring (17), and the spring (18) is fixedly connected between the end of the sliding groove and the connecting ring (16), when the power switch (9) is in the open state, the connecting ring (16) and the fixed ring (17) are movably attached.

3. The quick opening door structure of an intrinsically safe product for mining as claimed in claim 1, characterized in that: One side of the extension rod (10) is provided with two first magnets (12) which are symmetrically distributed about the center line of the extension rod (10), the side of the box (1) is fixedly provided with a first fixed rod (13) and a second fixed rod (14), and the first fixed rod (13) and the second fixed rod (14) are provided with second magnets (15), when the power switch (9) is in the open state, one of the first magnets (12) and the second magnet (15) on the first fixed rod (13) are attached, when the power switch (9) is rotated counterclockwise by ninety degrees and is in the closed state, the other first magnet (12) and the second magnet (15) on the second fixed rod (14) are attached.

4. The quick opening door structure of an intrinsically safe product for mining as claimed in claim 3, characterized in that: One side of the connecting rod (7) facing the extension rod (10) is fixedly provided with a wear-resistant plate (8).

5. The quick access door structure for a mine intrinsically safe product of claim 1, wherein: The outer circle of the handle (11) is fixedly provided with a plurality of anti-skid lines which are evenly distributed in a ring shape.

6. The quick access door structure for a mine intrinsically safe product of claim 1, wherein: One end of the quick opening door (4) close to the screw door (2) is fixedly provided with an insertion plate (19), and one end of the screw door (2) close to the quick opening door (4) is fixedly provided with a limiting slot which is clamped with the insertion plate (19).

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