CN215170155U

CN215170155U - Novel locking device for ventilation air door of coal mine

Info

Publication number: CN215170155U
Application number: CN202121035754.2U
Authority: CN
Inventors: 胡百顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-12-14
Anticipated expiration: 2031-05-14

Abstract

The utility model relates to an air door shutting equipment technical field, and a novel shutting device of colliery ventilation air door is disclosed, including door frame and L shaped plate, the outer wall of door frame and the bottom outer wall fixed connection of L shaped plate, two through-holes have been seted up to the upper surface of door frame, and the fluting has been seted up to the bottom inner wall of door frame, the equal fixedly connected with antifriction bearing of through-hole and grooved inner wall, the common fixedly connected with bull stick of the inner wall of two adjacent antifriction bearing, the equal fixedly connected with door leaf of the pole wall of two bull sticks, fixing hole has been seted up to the upper surface of L shaped plate, and fixing hole's pore wall fixedly connected with oil tank. The utility model discloses make colliery ventilation air door have individual shutting function, make it have the ability of automatic opening and closing simultaneously, avoid taking place the incident, improved the fail safe nature that colliery ventilation air door blocking device used to and can improve effect and convenience that colliery ventilation air door used, and reduce staff's intensity of labour.

Description

Novel locking device for ventilation air door of coal mine

Technical Field

The utility model relates to an air door shutting equipment technical field especially relates to a novel shutting device of colliery ventilation air door.

Background

The air door is set for the pedestrian and the traveling crane in the pit, and the short circuit of the wind current is avoided while the pedestrian and the traveling crane are ensured to pass in the pit, so that the reliable operation of the whole ventilation system is ensured. The air door of the mine is usually used by matching two doors, when one door is opened, the other door is in a closed state, and the two doors cannot be opened at the same time so as to prevent the short circuit phenomenon of the wind current.

At present air door during operation, because the twice door of air door only realizes shutting each other through a wire rope's pulling, when one door is in half open mode, then half open phenomenon also can appear in another door, the twice door will appear at this moment and is in half open mode simultaneously, thereby lead to forming the air current short circuit between the two doors or local fan circulation wind phenomenon appears, can't guarantee the shutting each other of two doors effectively, there is great potential safety hazard, and influence effect and the reliability that the air door used, and current air door is mostly the manpower and opens, the opening process is consuming time hard, influence the convenience that the air door used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art colliery ventilation air door blocking device and having the twice door to be in the state of half opening simultaneously when using, thereby lead to forming the wind current short circuit between the two doors or local fan circulation wind phenomenon appears, can't guarantee the mutual shutting of two doors effectively, there is great potential safety hazard, and influence effect and the reliability that the air door used, and the air door is mostly the manpower and opens, it is hard consuming time to open the process, influence the problem that the air door used the convenience, and the novel blocking device of colliery ventilation air door who provides.

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

a novel locking device of a ventilation air door of a coal mine comprises a door frame and an L-shaped plate, wherein the outer wall of the door frame is fixedly connected with the outer wall of the bottom end of the L-shaped plate, the upper surface of the door frame is provided with two through holes, the inner wall of the bottom end of the door frame is provided with a slot, rolling bearings are fixedly connected with the inner walls of the through holes and the grooves, rotating rods are fixedly connected with the inner walls of two adjacent rolling bearings together, door leaves are fixedly connected with the rod walls of the two rotating rods, fixing through holes are formed in the upper surface of the L-shaped plate, the wall of the fixed through hole is fixedly connected with an oil tank, the inner wall of the oil tank is movably connected with a first piston and two second pistons, the inner wall fixedly connected with stopper of first piston, the outer wall of stopper and the top inner wall swing joint of oil tank, two the equal fixedly connected with link gear of inner wall of second piston, the last fixed surface of L shaped plate is connected with control mechanism.

Preferably, the link gear includes the connecting block with second piston inner wall fixed connection, the rectangular hole has all been seted up to the both sides of oil tank, and the pore wall swing joint of rectangular hole has the rack, the lateral wall of rack and the outer wall fixed connection of connecting block, the fixed cover of the pole wall of bull stick has been connect drive gear, drive gear's outer wall and adjacent the outer wall intermeshing of rack, torque spring has been cup jointed in the pole wall activity of bull stick, torque spring's both ends respectively with the upper surface of door frame and drive gear's lower fixed surface be connected.

Preferably, control mechanism includes the air pump with L shaped plate upper surface fixed connection, the fixed intercommunication of output of air pump has the pipe, the top of pipe and the fixed intercommunication of the upper surface of oil tank, the end of connecting electricity of air pump has knob time switch through wire electric connection, knob time switch's outer wall fixedly connected with fixed plate.

Preferably, the outer walls of the two racks are movably connected with U-shaped limiting plates, and the lower surfaces of the U-shaped limiting plates are fixedly connected with the upper surface of the door frame.

Preferably, the inside of the oil tank is filled with hydraulic oil.

Preferably, the outer walls of the two racks are movably sleeved with return springs.

Compared with the prior art, the utility model provides a novel blocking device of colliery ventilation air door possesses following beneficial effect:

the novel locking device for the ventilation air door of the coal mine is provided with an air pump, a first piston, a second piston and a linkage mechanism, when the air door needs to be opened, firstly, the passing time is calculated according to the distance between two air doors, then, the opening time of a knob timing switch is adjusted, the outside air is conveyed to the top of an oil tank through a guide pipe by a control mechanism, then, air extrudes a limiting block and the first piston, the first piston pushes hydraulic oil, the hydraulic oil pushes the second piston, a rotating rod is rotated by the linkage mechanism, the rotating rod enables a door leaf to be opened, after the timing of the knob timing switch is finished, the air pump stops working, at the moment, the first piston loses air pressure restraint, the door leaf is automatically closed by the linkage mechanism and the rotating rod, the locking of the previous air door is realized when the next air door is opened, the air door in the coal mine is ensured to be stable in airflow, and the mechanism enables the ventilation air door in the coal mine to have the independent locking function, meanwhile, the locking device has the capability of automatically opening and closing, the safety and the reliability of the locking device of the coal mine ventilation air door are improved, the using effect and the convenience of the coal mine ventilation air door can be improved, and the labor intensity of workers is reduced.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make colliery ventilation air door have individual shutting function, make it have the ability of automatic opening and closing simultaneously, avoid taking place the incident, improved the fail safe nature that colliery ventilation air door shutting device used to and can improve effect and convenience that colliery ventilation air door used, and reduce staff's intensity of labour.

Drawings

Fig. 1 is a schematic structural view of a novel locking device of a ventilation air door for a coal mine, which is provided by the utility model;

fig. 2 is a schematic structural view of a part a of a novel locking device of a ventilation air door for a coal mine, which is provided by the utility model;

fig. 3 is a schematic structural diagram of a part B of the novel locking device for the ventilation air door of the coal mine, which is provided by the utility model.

In the figure: 1 door frame, 2L-shaped plate, 3 grooves, 4 rolling bearings, 5 rotating rods, 6 door leaves, 7 oil tanks, 8 linkage mechanisms, 81 connecting blocks, 82 racks, 83 transmission gears, 84 torsion springs, 9 control mechanisms, 91 air pumps, 92 guide pipes, 93 knob timing switches, 94 fixing plates, 10 first pistons, 11 second pistons, 12 limiting blocks, 13U-shaped limiting plates and 14 return springs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel locking device for a ventilation air door of a coal mine comprises a door frame 1 and an L-shaped plate 2, wherein the outer wall of the door frame 1 is fixedly connected with the outer wall at the bottom end of the L-shaped plate 2, the upper surface of the door frame 1 is provided with two through holes, the inner wall at the bottom end of the door frame 1 is provided with a slot 3, the inner walls of the through holes and the slot 3 are fixedly connected with rolling bearings 4, the inner walls of two adjacent rolling bearings 4 are fixedly connected with rotating rods 5 together, the rod walls of the two rotating rods 5 are fixedly connected with door leaves 6, the upper surface of the L-shaped plate 2 is provided with a fixed through hole, the hole wall of the fixed through hole is fixedly connected with an oil tank 7, the inner wall of the oil tank 7 is movably connected with a first piston 10 and two second pistons 11, the inner wall of the first piston 10 is fixedly connected with a limiting block 12, the outer wall of the limiting block 12 is movably connected with the inner wall at the top end of the oil tank 7, and the inner walls of the two second pistons 11 are fixedly connected with a linkage mechanism 8, the upper surface of the L-shaped plate 2 is fixedly connected with a control mechanism 9.

The linkage mechanism 8 comprises a connecting block 81 fixedly connected with the inner wall of the second piston 11, rectangular holes are formed in two sides of the oil tank 7, a rack 82 is movably connected to the hole wall of each rectangular hole, the side wall of each rack 82 is fixedly connected with the outer wall of the corresponding connecting block 81, a transmission gear 83 is fixedly sleeved on the rod wall of the rotating rod 5, the outer wall of each transmission gear 83 is meshed with the outer wall of the corresponding adjacent rack 82, a torsion spring 84 is movably sleeved on the rod wall of the rotating rod 5, and two ends of each torsion spring 84 are respectively fixedly connected with the upper surface of the door frame 1 and the lower surface of each transmission gear 83.

Control mechanism 9 includes the air pump 91 with L shaped plate 2 upper surface fixed connection, the fixed intercommunication of output of air pump 91 has pipe 92, the top of pipe 92 and the upper surface fixed intercommunication of oil tank 7, the end of connecting electricity of air pump 91 has knob time switch 93 through wire electric connection, the outer wall fixedly connected with fixed plate 94 of knob time switch 93, above-mentioned mechanism makes colliery ventilation air door have individual shutting function, make it have automatic opening and closing's ability simultaneously, avoid taking place the incident, the fail safe nature that colliery ventilation air door shutting device used has been improved, and can.

The outer wall swing joint of two racks 82 has U-shaped limiting plate 13, and the lower surface of U-shaped limiting plate 13 is connected with the last fixed surface of door frame 1, and the stability that rack 82 removed can be ensured to U-shaped limiting plate 13.

The inside of the oil tank 7 is filled with hydraulic oil, and the hydraulic oil can ensure the reliability of the linkage of the first piston 10 and the second piston 11.

The outer walls of the two racks 82 are movably sleeved with the return springs 14, the return springs 14 can assist the reliability of the locking device, and the air pump 91 is electrically connected with an external power supply through the knob timing switch 93, which is a conventional technique and belongs to a technical means commonly used by those skilled in the art, and therefore, the details are not described herein.

The utility model discloses in, when the air door needs to be opened, at first calculate the transit time according to twice air door distance, then adjust knob time switch 93 open time, start air pump 91 through knob time switch 93, air pump 91 carries oil tank 7 top to the outside air through pipe 92, air extrusion stopper 12 and first piston 10 after that, first piston 10 promotes hydraulic oil, hydraulic oil promotes second piston 11, second piston 11 makes rack 82 move outward, rack 82 makes drive gear 83 rotatory, drive gear 83 makes bull stick 5 rotatory, bull stick 5 makes door leaf 6 open, connecting block 81 extrudes reset spring 14 simultaneously, make reset spring 14 compress and produce the restoring force, torque spring 84 rotates simultaneously and produces the restoring force, after knob time switch 93 finishes regularly, air pump 91 stop work, first piston 10 loses the air pressure restraint this moment, make rack 82 under torque spring 84 and reset spring 14's restoring force effect after that makes, then, the time is long, then, the time is opened to the air pump 82, First piston 10, second piston 11 and hydraulic oil reset, and then realize 6 self-closing of door leaf, realize the shutting of previous air door when opening next air door, and guarantee the air current in the colliery stable, this mechanism makes colliery ventilation air door have individual shutting function, make it have the ability of automatic opening and closing simultaneously, avoid taking place the incident, the fail safe nature that colliery ventilation air door closing means used has been improved, and can improve effect and convenience that colliery ventilation air door used, and reduce staff's intensity of labour.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel locking device for a ventilation air door of a coal mine comprises a door frame (1) and an L-shaped plate (2), and is characterized in that the outer wall of the door frame (1) is fixedly connected with the outer wall of the bottom end of the L-shaped plate (2), two through holes are formed in the upper surface of the door frame (1), a slot (3) is formed in the inner wall of the bottom end of the door frame (1), rolling bearings (4) are fixedly connected with the inner walls of the through holes and the slot (3), rotating rods (5) are fixedly connected with the inner walls of two adjacent rolling bearings (4), door leaves (6) are fixedly connected with the rod walls of the two rotating rods (5), a fixing through hole is formed in the upper surface of the L-shaped plate (2), an oil tank (7) is fixedly connected with the hole wall of the fixing through hole, and a first piston (10) and two second pistons (11) are movably connected with the inner wall of the oil tank (7), the inner wall fixedly connected with stopper (12) of first piston (10), the outer wall of stopper (12) and the top inner wall swing joint of oil tank (7), two the equal fixedly connected with link gear (8) of inner wall of second piston (11), the last fixed surface of L shaped plate (2) is connected with control mechanism (9).

2. The novel locking device for the ventilation damper of the coal mine according to claim 1, wherein the linkage mechanism (8) comprises a connecting block (81) fixedly connected with the inner wall of the second piston (11), rectangular holes are formed in both sides of the oil tank (7), a rack (82) is movably connected to the wall of each rectangular hole, the side wall of each rack (82) is fixedly connected with the outer wall of the corresponding connecting block (81), a transmission gear (83) is fixedly sleeved on the rod wall of the rotating rod (5), the outer wall of each transmission gear (83) is meshed with the outer wall of the corresponding adjacent rack (82), a torsion spring (84) is movably sleeved on the rod wall of the rotating rod (5), and the two ends of each torsion spring (84) are fixedly connected with the upper surface of the door frame (1) and the lower surface of the corresponding transmission gear (83) respectively.

3. The novel locking device for the ventilation damper of the coal mine according to claim 1, wherein the control mechanism (9) comprises an air pump (91) fixedly connected with the upper surface of the L-shaped plate (2), the output end of the air pump (91) is fixedly communicated with a conduit (92), the top end of the conduit (92) is fixedly communicated with the upper surface of the oil tank (7), the electrical connection end of the air pump (91) is electrically connected with a knob timing switch (93) through a lead, and the outer wall of the knob timing switch (93) is fixedly connected with a fixing plate (94).

4. The novel locking device for the ventilation air door of the coal mine as claimed in claim 2, wherein the outer walls of the two racks (82) are movably connected with U-shaped limiting plates (13), and the lower surfaces of the U-shaped limiting plates (13) are fixedly connected with the upper surface of the door frame (1).

5. The novel locking device for the ventilation damper in the coal mine is characterized in that the oil tank (7) is filled with hydraulic oil.

6. The novel locking device for the ventilation damper of the coal mine as claimed in claim 2, characterized in that the outer wall of the two racks (82) is movably sleeved with a return spring (14).