Mining explosion-proof switch vertical hinged door structure

Abstract

The utility model relates to the technical field of explosion-proof switches, in particular to a mining explosion-proof switch vertical hinged door structure, which comprises a base, a machine body, a rotating shaft, a door plate, a handle and a locking device, the machine body is fixedly connected with the surface of the base, the rotating shaft is fixedly connected with the surface of the machine body, the door plate is rotatably connected with the surface of the rotating shaft, and the handle is fixedly connected with the surface of the door plate. The locking device is arranged on the surface of the machine body and comprises a two-way threaded rod, the two-way threaded rod is rotationally connected with the inner wall of the machine body, one end of the two-way threaded rod is fixedly connected with a rotating valve, and a through hole is formed in the surface of the rotating valve. Compared with the prior art that the locking device is arranged on one side far away from the handle, a worker can open the door plate immediately after rotating the rotating valve to unlock the door plate, so that the situation that the worker needs to wind to the other side for operation is avoided, and the usability of equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof switches, in particular to a flat door structure of a mine explosion-proof switch. Background Art

[0002] An explosion-proof switch is a switch device that can be used in harsh and relatively dangerous environments to prevent explosions. It is required in the coal mining industry, paint or ink factories, wood processing plants, cement plants, shipping, and sewage treatment. Mine explosion-proof switches are mainly used to prevent gas explosions. Most of the existing mine explosion-proof switch devices adopt a flat door structure, but the locking device is often set on the side far from the handle, making it inconvenient for workers to operate on the other side after unlocking.

[0003] The prior art such as the Chinese patent with the publication number CN218513334U discloses a mine explosion-proof switch, including a protective shell, a dehumidifying cover assembly, and a sealing and locking mechanism; an explosion-proof switch body is arranged inside the protective shell, a fixed buckle is arranged on one side of the protective shell, and an elastic sealing belt is fixedly connected to the side of the protective shell far from the fixed buckle; the dehumidifying cover assembly is arranged above the protective shell, and the dehumidifying cover assembly includes a cover frame, a fixed frame is arranged on the cover frame, and a plurality of uniformly distributed holes are drilled on the fixed frame; the sealing and locking mechanism is fixed on the protective shell, and the sealing and locking mechanism includes a fixing plate, and a support push rod is inserted on the fixing plate, and a pair of clamping blocks are arranged at one end of the support push rod close to the cover frame. By setting the corresponding mechanisms of the existing mine explosion-proof switch, the utility model makes it not easy for water vapor to enter the inside of the explosion-proof switch, thereby reducing the probability of the explosion-proof switch malfunctioning, not easily affecting the normal use of the equipment, and further reducing unnecessary troubles for users. Although the locking device of the utility model is arranged on the handle side, the focus is mainly on moisture-proof of the equipment, and the design of the locking device in the flat door structure is too simple, with low convenience and safety.

[0004] In order to solve the problem that the mine explosion-proof switch is inconvenient to open and close, and avoid the situation that workers have to go around to the other side after unlocking on one side and then go around back to the locking device side after the operation, it is necessary to improve this. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a flat door structure of a mine explosion-proof switch to solve the disadvantage of inconvenient opening and closing in the prior art.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A flat door structure for a mine explosion-proof switch, comprising a base, a fuselage, a rotating shaft, a door panel, a handle and a locking device. The surface of the fuselage is fixedly connected to the base. The rotating shaft is fixedly connected to the surface of the fuselage. The door panel is rotatably connected to the surface of the rotating shaft. The handle is fixedly connected to the surface of the door panel. The locking device is arranged on the surface of the fuselage. The locking device includes a bidirectional threaded rod, which is rotatably connected to the inner wall of the fuselage. One end of the bidirectional threaded rod is fixedly connected with a rotary valve, and through holes are formed on the surface of the rotary valve.

[0007] Further, a cylinder is slidably connected to the surface of the through hole. Anti-detachment blocks are fixedly connected to both ends of the cylinder. A sleeve is fixedly connected to the surface of the fuselage. The anti-detachment block is slidably connected to the surface of the sleeve.

[0008] Further, an anti-detachment disc is fixedly connected to the end of the bidirectional threaded rod away from the rotary valve. An anti-detachment groove is formed on the surface of the fuselage. The anti-detachment disc is rotatably connected to the surface of the anti-detachment groove.

[0009] Further, movable blocks are threadedly connected to the surface of the bidirectional threaded rod. The number of the movable blocks is two groups. A clamping column is fixedly connected to the surface of each movable block. Card slots are formed on the surface of the door panel. The number of the card slots is two groups. The clamping column is slidably connected to the surface of the card slot.

[0010] Further, an auxiliary device is arranged on the surface of the door panel. The auxiliary device includes a T-shaped groove, which is formed on the surface of the door panel. A spring is fixedly connected to the surface of the T-shaped groove.

[0011] Further, one end of the spring is fixedly connected with a T-shaped block, which is slidably connected to the surface of the T-shaped groove. A rotating column is fixedly connected to the surface of the T-shaped block. A telescopic rod is rotatably connected to the surface of the rotating column.

[0012] Further, one end of the telescopic rod is rotatably connected to a central column. A transverse groove is formed on the surface of the fuselage. The central column is fixedly connected to the surface of the transverse groove.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing a locking device, when the door panel needs to be opened, one only needs to hold the cylinder and lift it upwards to disengage it from the sleeve, and then rotate the rotary valve to make the bidirectional threaded rod rotate. As a result, the two movable blocks move towards each other on the bidirectional threaded rod. At the same time, the latch pins on the two movable blocks respectively disengage from the two card slots. At this time, the door panel is unlocked, and one can pull the handle to open the door panel. When the door panel needs to be closed, one only needs to push the handle to close the door panel, and then hold the cylinder and rotate the rotary valve in the reverse direction to make the bidirectional threaded rod reverse-rotate. As a result, the movable blocks move away from each other on the bidirectional threaded rod, driving the two latch pins to slide into the card slots respectively to lock the door panel. Finally, insert the cylinder downwards into the sleeve to prevent accidental unlocking of the door panel due to accidental touch. By providing the locking device, different from the design in the prior art where the locking device is located on the side far from the handle, the staff can open the door panel immediately after rotating the rotary valve to unlock the door panel, avoiding the situation of having to go around to the other side for operation. This effectively improves the usability of the device.

[0015] 2. In the present utility model, by providing an auxiliary device, when the door panel is unlocked, the spring that has been in a compressed state rebounds, thereby pushing the T-shaped block to slide towards the side close to the handle in the T-shaped groove. As a result, while the telescopic rod extends, it automatically pushes the door panel open by a certain amount. When closing the door panel, hold the handle and push the door panel, causing the telescopic rod to contract while driving the T-shaped block to slide towards the side far from the handle in the T-shaped groove, and compressing the spring again. When the staff forgets to lock the door, that is, when the latch pin fails to insert into the card slot, the spring will rebound again after letting go, causing the door panel to open again. By providing the auxiliary device, in the case of not locking the door, the door panel will automatically bounce outwards to remind the staff, avoiding the situation where the staff only closes the door panel but fails to lock it. This not only eliminates the process of relocking to improve work efficiency but also reduces the possibility of accidents. This effectively improves the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of a flat-opening door structure of a mine explosion-proof switch proposed by the present utility model;

[0017] Figure 2 is a partial structure diagram of the locking device in a flat-opening door structure of a mine explosion-proof switch proposed by the present utility model;

[0018] Figure 3 is for a mine explosion-proof switch flat-opening door structure proposed by the present utility model Figure 2 schematic diagram at position A;

[0019] Figure 4 is a partial structure diagram of the auxiliary device in a flat-opening door structure of a mine explosion-proof switch proposed by the present utility model;

[0020] Figure 5This utility model provides a partial structural schematic diagram of an auxiliary device in a flat door structure of a mine explosion-proof switch.

[0021] Legend Explanation:

[0022] 1. Base; 2. Body; 3. Rotating shaft; 4. Door panel; 5. Handle; 6. Locking device; 601. Bidirectional threaded rod; 602. Rotating valve; 603. Through hole; 604. Cylinder; 605. Anti-disengagement block; 606. Sleeve; 607. Anti-disengagement disk; 608. Anti-disengagement groove; 609. Movable block; 610. Locking post; 611. Locking groove; 7. Auxiliary device; 71. T-shaped groove; 72. Spring; 73. T-shaped block; 74. Rotating column; 75. Telescopic rod; 76. Central column; 77. Horizontal groove. Specific Embodiment

[0023] Please refer to Figures 1-5 , this utility model provides a technical solution: a flat door structure of a mine explosion-proof switch, including a base 1, a body 2, a rotating shaft 3, a door panel 4, a handle 5 and a locking device 6. The body 2 is fixedly connected to the surface of the base 1, the rotating shaft 3 is fixedly connected to the surface of the body 2, the door panel 4 is rotatably connected to the surface of the rotating shaft 3, the handle 5 is fixedly connected to the surface of the door panel 4, and the locking device 6 is arranged on the surface of the body 2.

[0024] Next, specifically describe the specific settings and functions of its locking device 6 and auxiliary device 7.

[0025] In this embodiment: The locking device 6 includes a bidirectional threaded rod 601. The bidirectional threaded rod 601 is rotatably connected to the inner wall of the body 2. One end of the bidirectional threaded rod 601 is fixedly connected to a rotating valve 602, and a through hole 603 is opened on the surface of the rotating valve 602.

[0026] The effects achieved by the above components are: When the rotating valve 602 is rotated, the bidirectional threaded rod 601 can be rotated on the inner wall of the body 2.

[0027] Specifically, a cylinder 604 is slidably connected to the surface of the through hole 603. Anti-disengagement blocks 605 are fixedly connected to both ends of the cylinder 604. A sleeve 606 is fixedly connected to the surface of the body 2, and the anti-disengagement block 605 is slidably connected to the surface of the sleeve 606.

[0028] The effects achieved by the above components are: After holding the cylinder 604 and lifting it upward to disengage it from the sleeve 606, the rotating valve 602 can be rotated. After holding the cylinder 604 and inserting it downward into the sleeve 606, the rotation of the rotating valve 602 can be restricted. The anti-disengagement block 605 is provided to prevent the cylinder 604 from disengaging from the rotating valve 602, and the sleeve 606 is provided to fix the bidirectional threaded rod 601 when it is not needed to rotate, avoiding accidental unlocking of the door panel 4 caused by accidental touch.

[0029] Specifically, one end of the bidirectional threaded rod 601 away from the rotary valve 602 is fixedly connected with an anti-disengagement disc 607. An anti-disengagement groove 608 is formed on the surface of the fuselage 2, and the anti-disengagement disc 607 is rotatably connected to the surface of the anti-disengagement groove 608.

[0030] The effect achieved by the above components is that the anti-disengagement groove 608 and the anti-disengagement disc 607 are provided to prevent the bidirectional threaded rod 601 from detaching from the fuselage 2.

[0031] Specifically, the surface of the bidirectional threaded rod 601 is threadedly connected with two movable blocks 609. The surfaces of the movable blocks 609 are fixedly connected with clamping columns 610. Two clamping grooves 611 are formed on the surface of the door panel 4. The clamping columns 610 are slidably connected to the surfaces of the clamping grooves 611.

[0032] The effect achieved by the above components is that when the bidirectional threaded rod 601 rotates, the two movable blocks 609 move towards or away from each other on the bidirectional threaded rod 601, so that the clamping columns 610 are inserted into or slide out of the clamping grooves 611, realizing the locking and unlocking of the door panel 4.

[0033] Specifically, an auxiliary device 7 is arranged on the surface of the door panel 4. The auxiliary device 7 includes a T-shaped groove 71 formed on the surface of the door panel 4, and a spring 72 is fixedly connected to the surface of the T-shaped groove 71.

[0034] The effect achieved by the above components is that after the door panel 4 is closed and locked, the spring 72 is in a compressed state. When unlocked, the spring 72 rebounds to provide a thrust for the door panel 4 to rotate outwards.

[0035] Specifically, one end of the spring 72 is fixedly connected with a T-shaped block 73. The T-shaped block 73 is slidably connected to the surface of the T-shaped groove 71. A rotating column 74 is fixedly connected to the surface of the T-shaped block 73, and a telescopic rod 75 is rotatably connected to the surface of the rotating column 74.

[0036] The effect achieved by the above components is that after the spring 72 rebounds, it pushes the T-shaped block 73 to slide in the T-shaped groove 71. The T-shaped block 73 and the T-shaped groove 71 are provided to facilitate the sliding of the T-shaped block 73 and prevent the T-shaped block 73 from detaching from the door panel 4. The telescopic rod 75 is provided to utilize its telescopic function to facilitate the sliding of the T-shaped block 73 to the left and right sides.

[0037] Specifically, one end of the telescopic rod 75 is rotatably connected with a central column 76. A transverse groove 77 is formed on the surface of the fuselage 2, and the central column 76 is fixedly connected to the surface of the transverse groove 77.

[0038] The effect achieved by the above components is: after the spring 72 rebounds, it pushes the T-block 73 to slide toward the side close to the handle 5, thereby driving the telescopic rod 75 to extend. After the spring 72 rebounds, it is in a relaxed state, and at the same time, the door panel 4 is opened to a certain angle. When the door panel 4 needs to be further opened to a larger angle, the door panel 4 can be manually pulled to make the telescopic rod 75 continue to extend, and the spring 72 changes from a relaxed state to a stretched state. When the door is closed, the T-block 73 will slide toward the side away from the handle 5, causing the telescopic rod 75 to contract and compress the spring 72. If you let go without locking the door, the spring 72 will rebound again to open the door panel 4 again to remind the staff that the door panel 4 is not locked.

[0039] Working principle: By setting the locking device 6, when the door panel 4 needs to be opened, it is only necessary to hold the cylinder 604 and lift it upward to disengage it from the sleeve 606, and then rotate the rotary valve 602 to rotate the two-way threaded rod 601, so that the two sets of movable blocks 609 move toward each other on the two-way threaded rod 601. At the same time, the clamping columns 610 on the two sets of movable blocks 609 are respectively disengaged from the two sets of clamping grooves 611. At this time, the door panel 4 is unlocked, and the handle 5 can be pulled to open the door panel 4. When the door panel 4 needs to be closed, it is only necessary to push the handle 5 to close the door panel 4. Then, the cylinder 604 is held and the rotary valve 602 is rotated in the opposite direction to reverse the bidirectional threaded rod 601, so that the movable block 609 moves in opposite directions on the bidirectional threaded rod 601, driving the two sets of clamping columns 610 to slide into the clamping grooves 611 respectively to lock the door panel 4, and finally the cylinder 604 is inserted downward into the sleeve 606 to prevent accidental unlocking of the door panel 4 by accidental touch. By setting the locking device 6, which is different from the design of the locking device 6 located on the side away from the handle 5 in the prior art, the staff can unlock the door panel 4 by rotating the rotary valve 602. After that, the door panel 4 can be opened immediately, avoiding the need to go around to the other side to work, which effectively improves the usability of the equipment. In addition, by setting the auxiliary device 7, when the door panel 4 is unlocked, the spring 72 that has been in a compressed state rebounds, thereby pushing the T-block 73 to slide in the T-slot 71 to the side close to the handle 5, so that the telescopic rod 75 extends and automatically pushes the door panel 4 to open a part. When the door panel 4 is to be closed, the handle 5 is held to push the door panel 4, so that the telescopic rod 75 contracts and drives the T-block 73 in the T-slot When the staff forgets to lock the door, that is, the locking column 610 fails to be inserted into the locking slot 611, the spring 72 will rebound again after the staff lets go, so that the door panel 4 will open again. By setting the auxiliary device 7, the door panel 4 will automatically pop outwards to remind the staff when the door is not locked, avoiding the situation where the staff only closes the door panel 4 but fails to lock the door. This not only eliminates the process of re-locking to improve work efficiency, but also reduces the possibility of accidents, thereby effectively improving the safety of the equipment.

Claims

1. A mining explosion-proof switch swing door structure, comprising a base (1), a body (2), a rotating shaft (3), a door panel (4), a handle (5) and a locking device (6), characterized in that: The body (2) is fixedly connected to the surface of the base (1), the rotating shaft (3) is fixedly connected to the surface of the body (2), the door panel (4) is rotatably connected to the surface of the rotating shaft (3), the handle (5) is fixedly connected to the surface of the door panel (4), the locking device (6) is arranged on the surface of the body (2), the locking device (6) comprises a bidirectional threaded rod (601), the bidirectional threaded rod (601) is rotatably connected to the inner wall of the body (2), one end of the bidirectional threaded rod (601) is fixedly connected to a rotating valve (602), and a through hole (603) is opened on the surface of the rotating valve (602).

2. The mining explosion-proof switch swing door structure according to claim 1 is characterized in that: The surface of the through hole (603) is slidably connected to a cylinder (604), both ends of the cylinder (604) are fixedly connected to anti-slip blocks (605), the surface of the body (2) is fixedly connected to a sleeve (606), and the anti-slip block (605) is slidably connected to the surface of the sleeve (606).

3. The mining explosion-proof switch swing door structure according to claim 2 is characterized in that: One end of the bidirectional threaded rod (601) away from the rotary valve (602) is fixedly connected to an anti-slip disc (607), and an anti-slip groove (608) is provided on the surface of the body (2), and the anti-slip disc (607) is rotatably connected to the surface of the anti-slip groove (608).

4. The mining explosion-proof switch swing door structure according to claim 3 is characterized in that: The surface of the bidirectional threaded rod (601) is threadedly connected with a movable block (609), the movable blocks (609) are in two groups, the surfaces of the movable blocks (609) are fixedly connected with a clamping column (610), the surface of the door panel (4) is provided with a clamping groove (611), the clamping groove (611) is in two groups, and the clamping column (610) is slidably connected to the surface of the clamping groove (611).

5. The mining explosion-proof switch swing door structure according to claim 1 is characterized in that: The surface of the door panel (4) is provided with an auxiliary device (7), the auxiliary device (7) comprising a T-shaped slot (71), the T-shaped slot (71) being opened on the surface of the door panel (4), and the surface of the T-shaped slot (71) being fixedly connected with a spring (72).

6. The mining explosion-proof switch swing door structure according to claim 5 is characterized in that: One end of the spring (72) is fixedly connected to a T-shaped block (73), the T-shaped block (73) is slidably connected to the surface of the T-shaped slot (71), the surface of the T-shaped block (73) is fixedly connected to a rotating column (74), and the surface of the rotating column (74) is rotatably connected to a telescopic rod (75).

7. The mining explosion-proof switch swing door structure according to claim 6 is characterized in that: One end of the telescopic rod (75) is rotatably connected to a central column (76), a transverse groove (77) is provided on the surface of the fuselage (2), and the central column (76) is fixedly connected to the surface of the transverse groove (77).

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