CN220615794U - Mining rubber-tyred car arresting gear that opens door - Google Patents

Abstract

The utility model discloses a door opening braking device of a mining rubber-tyred vehicle, which relates to the technical field of braking devices and comprises a brake and a hydraulic pump for driving the brake to brake, wherein an oil way is communicated between the brake and the hydraulic pump, a hand brake valve is arranged between the brake and the hydraulic pump, a brake control valve is arranged between the hand brake valve and the brake, an air storage tank is arranged on the brake control valve, an air channel is communicated between the brake control valve and the air storage tank, and a roller pneumatic control valve is arranged between the brake control valve and the air storage tank. The method has the effect of reducing the probability that the rubber-tyred vehicle slides due to the fact that a driver does not brake due to misoperation during parking.

Description

Mining rubber-tyred car arresting gear that opens door

Technical Field

The utility model relates to the technical field of braking devices, in particular to a door opening braking device of a mining rubber-tyred vehicle.

Background

In the auxiliary transportation work of the coal mine, the use of the rubber-tyred vehicle is more and more popular, the rubber-tyred vehicle has stronger climbing load capacity, and the rubber-tyred vehicle can realize multiple purposes, can integrate functions of loading, transportation and the like, and can effectively reduce the transportation cost.

When using the rubber-tyred car to transport, often meet the condition that needs parking inspection or interim parking inspection, the driver of rubber-tyred car can leave the driver's cabin this moment, and the slope is more in the mining area, and when the parking position of rubber-tyred car was in the slope, the driver need pull up the manual brake when parking, and then prevents the probability that the landslide appears in the rubber-tyred car.

With the related art described above, if the driver forgets to tighten the handbrake while parking, the rubber-tyred vehicle is easily moved along a slope under the influence of gravity.

Disclosure of Invention

In order to reduce the probability of rubber-tyred vehicle sliding caused by no braking of a driver due to misoperation during parking, the application provides a door opening braking device of a mining rubber-tyred vehicle.

The application provides a mining rubber-tyred car arresting gear that opens door adopts following technical scheme:

the utility model provides a mining rubber-tyred car arresting gear that opens door, includes the hydraulic pump that stopper and drive stopper braked, and the intercommunication has the oil circuit between stopper and the hydraulic pump, be equipped with the manual brake valve between stopper and the hydraulic pump, be equipped with the brake control valve between manual brake valve and the stopper, the brake control valve is equipped with the gas holder to the intercommunication has the gas circuit between brake control valve and the gas holder, is equipped with gyro wheel pneumatic control valve between brake control valve and the gas holder.

Through adopting above-mentioned technical scheme, gyro wheel pneumatic control valve is connected with the rubber-tyred car door, and when the door was closed, gyro wheel pneumatic control valve was opened. At the moment, air flow enters the brake control valve along the air path, so that the brake control valve is opened, hydraulic oil enters the hand brake valve from the hydraulic pump along the oil path to reach the brake, and the brake does not work at the moment; when the car door is opened, the roller control valve is closed, at the moment, the air flow cannot reach the brake control valve, the brake control valve is closed, and then an oil way between the brake valve and the hand brake valve is cut off, at the moment, the brake is started, the brake is driven to work when the car door is opened, and then the sliding probability of the rubber-tyred car in parking inspection is reduced.

Optionally, a main switch is arranged between the air storage tank and the rolling gate valve, and the main switch is communicated with the air passage.

Through adopting above-mentioned technical scheme, be convenient for cut off the intercommunication of gas circuit through main switch, and then improve the convenience when overhauling the gas circuit.

Optionally, one end of the air storage tank far away from the rolling gate valve is provided with an air inlet pump, and a safety valve is arranged between the air storage tank and the air inlet pump.

Through adopting above-mentioned technical scheme, the air pump is convenient for aerify the gas holder, improves the convenience of use of gas holder, is convenient for detect the gas holder through the relief valve, and then improves the convenience of use of gas holder.

Optionally, be equipped with the filter between gas holder and the main switch, the filter includes two connecting pipes and is located the rolling disc between two connecting pipes, the air vent has all been seted up to the connecting pipe to fixedly connected with and the trachea of air vent intercommunication, the same bull stick of fixedly connected with between two connecting pipes, the bull stick wear to establish the rolling disc and rotate with the rolling disc and be connected, the ring channel with the trachea adaptation is seted up to the rolling disc, the trachea is located the ring channel and laminates with the ring channel inner wall, a plurality of inlet port with the ring channel intercommunication have been seted up to the rolling disc, be equipped with the filter piece in the inlet port.

By adopting the technical scheme, when the air flow flows, the air flows to the air pipe sequentially through the vent holes along the connecting pipe, and enters the air pipe of the other connecting pipe after passing through the air inlet hole of the rotating disc. The filter sheet filters the air flow, so that moisture and impurities in the air flow are reduced. When changing the filter piece, rotate the rolling disc under the supporting action of bull stick for the rolling disc drives the filter piece and rotates, and the trachea is located the ring channel and laminating with the ring channel inner wall this moment, and the gas circuit is closed, places new filter piece in the inlet port that is close to the trachea, when improving gas pocket and trachea intercommunication, accomplishes the change to the filter piece.

Optionally, the holding tank with the ring channel intercommunication has been seted up to the rolling disc, be equipped with the sealed tube with the trachea adaptation in the holding tank, the sealed tube cover is located the trachea outside and is laminated with the trachea, the sealed tube is kept away from tracheal one side and articulates there is the ejector pin, the mouth of stepping down with the ejector pin adaptation has been seted up to the rolling disc, the rolling disc has been seted up the travel groove with stepping down mouthful intercommunication, the travel groove sets up with sealed tube axial is perpendicular, be equipped with the movable block in the travel groove, the ejector pin is articulated with the movable block, the limiting disc rotates and is connected with the threaded rod, the threaded rod wears to establish the movable block and with movable block threaded connection.

Through adopting above-mentioned technical scheme, when rotating the threaded rod, the threaded rod drives the movable block and removes along the movable groove, drives the ejector pin and removes in the mouth of stepping down when the movable block removes for the ejector pin drives the sealed tube and is close to the trachea, and the cover is located the trachea outside, and the sealed tube is favorable to improving the gas tightness between trachea and the inlet port.

Optionally, the one end fixedly connected with stem that the sealed tube was kept away from to the threaded rod, the sealing ring of rolling disc fixedly connected with and rotation adaptation, stem swivelling joint in the sealing ring and with the laminating of sealing ring inner wall.

Through adopting above-mentioned technical scheme, the shank is favorable to improving the convenience when rotating the threaded rod, and the sealing ring is favorable to improving the connection stability of shank and rolling disc simultaneously.

Optionally, tip intercommunication has the drain pipe under the gas holder, the drain pipe lower extreme is equipped with the ooff valve, the one end that the drain pipe is close to the gas holder is equipped with and holds the chamber, hold the intracavity and be equipped with the straight board, the straight board back of the body is equipped with the sealing block from the one end of gas holder, fixedly connected with spring between straight board and the sealing block, the spring is in compressed state, the trend that has the promotion sealing block and drain pipe laminating, the drain pipe has the kicking block along vertical sliding connection, the inclined plane with the sealing block adaptation has been seted up to the kicking block, sealing block and inclined plane laminating, the drain pipe rotates and is connected with the push rod, the kicking block is worn to establish by the push rod and with kicking block threaded connection.

Through adopting above-mentioned technical scheme, the comdenstion water in the gas holder flows to the drain pipe along the gas holder inner wall, and under the initial state, the sealing block is laminated with drain pipe inner wall and kicking block inclined plane under the effect of spring, and then prevents comdenstion water and gas to get into in the drain pipe through holding the chamber, when needing the drainage, rotate the push rod for the push rod drives the kicking block and removes, drives the sealing block through the inclined plane and removes to the direction that is close to the straight board when the kicking block removes, and the comdenstion water gets into in the drain pipe along the clearance between sealing block and the drain pipe this moment, later reverse rotation push rod makes the sealing block reset. And finally, opening a switch valve to drain the water in the drain pipe.

Optionally, drain pipe fixedly connected with sealed cowling, the push rod wears to establish the sealed cowling and rotates with the sealed cowling to be connected, push rod fixedly connected with disc piece, disc piece are located the sealed cowling and with the laminating of sealed cowling inner wall.

By adopting the technical scheme, the sealing cover is matched with the disc block, so that the air tightness between the push rod and the drain pipe is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the roller pneumatic control valve is connected with the rubber-tyred car door, and when the car door is closed, the roller pneumatic control valve is opened. At the moment, air flow enters the brake control valve along the air path, so that the brake control valve is opened, hydraulic oil enters the hand brake valve from the hydraulic pump along the oil path to reach the brake, and the brake does not work at the moment; when the vehicle door is opened, the roller control valve is closed, at the moment, the air flow cannot reach the brake control valve, the brake control valve is closed, and then an oil way between the brake valve and the hand brake valve is cut off, at the moment, the brake is started, and the brake is driven to work when the vehicle door is opened, so that the slip probability of the rubber-tyred vehicle during parking inspection is reduced;

2. the air pump is convenient for inflating the air storage tank, so that the use convenience of the air storage tank is improved, the air storage tank is convenient to detect through the safety valve, and the use convenience of the air storage tank is further improved;

3. when the air flows, the air flows to the air pipe sequentially through the vent holes along the connecting pipes, and enters the air pipe of the other connecting pipe after passing through the air inlet holes of the rotating disc. The filter sheet filters the air flow, so that moisture and impurities in the air flow are reduced. When changing the filter piece, rotate the rolling disc under the supporting action of bull stick for the rolling disc drives the filter piece and rotates, and the trachea is located the ring channel and laminating with the ring channel inner wall this moment, and the gas circuit is closed, places new filter piece in the inlet port that is close to the trachea, when improving gas pocket and trachea intercommunication, accomplishes the change to the filter piece.

Drawings

Fig. 1 is a schematic diagram of an overall circuit of a door opening brake device of a mining rubber-tyred vehicle.

Fig. 2 is a schematic view intended to highlight the structure of the drain pipe.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is a schematic view intended to highlight the filter structure.

Fig. 5 is a schematic view intended to highlight the connection of the connection tube with the rotating disc.

Fig. 6 is an enlarged schematic view of the portion B in fig. 5.

Reference numerals illustrate: 1. a brake; 2. a hydraulic pump; 3. a hand brake valve; 4. a brake control valve; 5. a gas storage tank; 51. a main switch; 52. an air inlet pump; 521. a safety valve; 53. a drain pipe; 531. a straight plate; 532. a sealing block; 533. a spring; 54. a top block; 541. an inclined plane; 55. a push rod; 551. a disc block; 56. a sealing cover; 6. a roller pneumatic control valve; 7. a filter; 71. a connecting pipe; 711. a vent hole; 712. an air pipe; 713. a rotating rod; 72. a rotating disc; 721. an air inlet hole; 722. a filter sheet; 723. a receiving groove; 724. sealing the tube; 725. a moving groove; 726. a moving block; 727. a threaded rod; 728. a rotating handle; 729. an annular groove; 73. a yielding port; 74. a seal ring; 75. and (5) a push rod.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a mining rubber-tyred car brake equipment that opens door.

Examples

Referring to fig. 1 and 2, a door opening brake device of a mining rubber-tyred vehicle comprises a brake 1 and a hydraulic pump 2, wherein the brake 1 is arranged on an axle of the rubber-tyred vehicle, and the rubber-tyred vehicle is stopped and braked when the brake 1 works. An oil way is communicated between the hydraulic pump 2 and the brake 1, hydraulic oil is conveyed to the brake 1 through the oil way by the hydraulic pump 2, and when the hydraulic oil reaches the brake 1, the brake 1 is in a static state, and the rubber-tyred vehicle can normally run at the moment. A hand brake valve 3 is arranged between the hydraulic pump 2 and the brake 1, the hand brake valve 3 is communicated with an oil way, and an operator controls the communication of the oil way by controlling the opening and closing of the hand brake valve 3.

Referring to fig. 1 and 2, an oil path between a brake 1 and a hand brake valve 3 is communicated with a brake control valve 4, the brake control valve 4 is a two-position three-way pneumatic control liquid valve, the brake control valve 4 is provided with an air storage tank 5, an air path is communicated between the air storage tank 5 and the brake control valve 4, air flow is conveyed to the brake control valve 4 through the air storage tank 5, when the air flow reaches the brake control valve 4, the brake control valve 4 is opened, and further the oil path between the hand brake valve 3 and the brake 1 is ensured to be kept communicated.

Referring to fig. 1 and 2, a roller pneumatic control valve 6 is arranged between the air storage tank 5 and the brake control valve 4, the roller pneumatic control valve 6 is connected with a vehicle door, and when the vehicle door is closed, the roller pneumatic control valve 6 is in an open state, and at the moment, an air path between the air storage tank 5 and the brake control valve 1 is kept communicated. When a driver parks and checks, and opens the vehicle door, the roller pneumatic control valve 6 is closed, at the moment, the air passage between the air storage tank 5 and the brake control valve 4 is closed, and then the brake control valve 4 cuts off the oil passage between the hand brake valve 3 and the brake 1, at the moment, the brake 1 is started, and the vehicle is braked. When the driver forgets to close the hand brake valve 3, the brake effect is achieved by opening the vehicle door, the brake is convenient and fast to carry out on the rubber-tyred vehicle, and meanwhile the use safety of the rubber-tyred vehicle is improved.

Referring to fig. 1 and 2, a main switch 51 is installed between the air tank 5 and the rolling pneumatic control valve, and in an initial state, the main switch 51 is in an open state, and the air path is kept in communication, and when the air path needs to be overhauled, the air path is cut off by closing the main switch 51. An air inlet pump 52 is arranged at one end of the air storage tank 5 far away from the rolling pneumatic control valve, and a user supplements air for the air storage tank 5 through the air inlet pump 52, so that the air storage tank 5 is more convenient to use. A safety valve 521 is installed between the gas tank 5 and the intake pump 52, and the gas pressure in the gas tank 5 is monitored by the safety valve 521, and when the gas pressure reaches a certain level, the gas supply to the gas tank 5 is stopped.

Referring to fig. 2 and 3, a drain pipe 53 is connected to the lower end of the air tank 5, moisture in the air condenses in the air tank 5, and the condensed water gathers on the inner wall of the air tank 5 and flows to the drain pipe 53 by gravity. The lower end of the drain pipe 53 is provided with a switching valve for controlling the drain pipe 53 to be communicated and closed with the outside, and the switching valve is in a closed state in an initial state.

Referring to fig. 2 and 3, the drain pipe 53 is provided with a receiving chamber at one end of the drain pipe 53 near the air storage tank 5, and condensed water flows into the receiving chamber. The receiving chamber is horizontally provided with a straight plate 531, a certain gap is provided between the straight plate 531 and the drain pipe 53, and condensed water flows downwards through the gap. The lower end of the straight plate 531 is provided with a sealing block 532, a spring 533 is arranged between the sealing block 532 and the straight plate 531, one end of the spring 533 is fixedly connected with the straight plate 531, the other end of the spring 533 is fixedly connected with the sealing block 532, the spring 533 is in a compressed state, and then the sealing block 532 is pushed to be abutted against the drain pipe 53, so that the drain pipe 53 is sealed.

Referring to fig. 2 and 3, a top block 54 is disposed in the drain pipe 53, the top block 54 is slidably connected with the drain pipe 53 in a lateral direction, an assembly groove adapted to the top block 54 is formed in the drain pipe 53, and the top block 54 is disposed in the assembly groove and is attached to an inner wall of the assembly groove. The top block 54 has a slope 541 provided at one end thereof adjacent to the seal block 532, the slope 541 being inclined from bottom to top in a direction approaching the seal block 532 in a direction away from the seal block 532, and the seal block 532 being bonded to the slope 541.

Referring to fig. 2 and 3, the drain pipe 53 is rotatably connected with a push rod 55, the push rod 55 is externally threaded, and the push rod 55 is threaded through the top block 54 and is in threaded connection with the top block 54, when a user rotates the push rod 55, the push rod 55 drives the top block 54 to move, so that the top block 54 pushes the sealing block 532 to move along the inclined plane 541, at this time, a certain gap is formed between the sealing block 532 and the drain pipe 53, and condensed water flows along the gap to the lower end of the condensation pipe. In order to improve the moving stability of the sealing block 532, two guide rods are fixedly connected to the upper end of the sealing block 532, and the guide rods penetrate through the straight plate 531 and are slidably connected with the straight plate 531.

Referring to fig. 2 and 3, when condensate water enters the lower end portion of the drain pipe 53, the push rod 55 is reversely rotated to reset the top block 54, and when the spring 533 pushes the sealing block 532 to reset, the passage between the air tank 5 and the drain pipe 53 is closed. The switch valve is opened, so that condensed water is discharged, and the probability that the condensed water in the air storage tank 5 enters the rolling pneumatic control valve along the air path is reduced.

Referring to fig. 2 and 3, a handle is fixed to an end of the push rod 55 remote from the sealing block 532, and an operator rotates the rotary rod 713 through the handle. The drain pipe 53 is connected with a rotating rod 713, and a sealing cover 56 is installed, and the rotating rod 713 penetrates the sealing cover 56 and is rotatably connected with the sealing cover 56. The seal cap 56 is provided with a circular cavity, and the rotating rod 713 is fixedly connected with a disc block 551, and the rotating rod 713 drives the disc block 551 to rotate when rotating. The disc block 551 is located in the circular cavity and is attached to the inner wall of the circular cavity, and the sealing cover 56 is matched with the disc block 551, so that the air tightness between the push rod 55 and the drain pipe 53 is improved.

Referring to fig. 4 and 5, a filter 7 is installed between the air tank 5 and the main switch 51, the filter 7 includes two connection pipes 71, and the connection pipes 71 are provided with ventilation holes 711 for communicating with an air path. The same rotating rod 713 is fixedly connected between the two connecting pipes 71, the rotating rod 713 is rotationally connected with a rotating disc 72, and the rotating rod 713 is not coaxial with the connecting pipes 71. The rotating disc 72 is provided with a plurality of air inlets 721 corresponding to the air vents 711 along the circumferential direction, the limiting disc is provided with a mounting groove communicated with the air inlets 721, the mounting groove is internally provided with a filter plate 722, and the filter plate 722 is attached to the inner wall of the mounting groove.

Referring to fig. 5 and 6, the connection pipe 71 is fixedly connected with an air pipe 712 communicated with the air hole 711, the limit plate is provided with an annular groove 729 matched with the air pipe 712, the air pipe 712 is positioned in the annular groove 729 and is attached to the inner wall of the annular groove 729, and an operator rotates the limit plate, so that the limit plate drives the air inlet 721 provided with the filter plate 722 to move towards the air pipe 712. The air pipe 712 is fixedly connected with a positioning piece matched with the filter plate 722, and when the air pipe 712 is communicated with the air inlet 721, the positioning piece is attached to the filter plate 722, so that the filter plate 722 is positioned.

Referring to fig. 1 and 6, when the air flow flows in the air path, it flows along the connection pipe 71 near the air tank 5 toward the air pipe 712 and enters the air inlet hole 721 communicating with the air pipe 712, and when the air flow passes through the filter sheet 722, the filter sheet 722 filters the air flow, and the filtered air flow enters the air pipe 712 and the connection pipe 71 far from the air tank 5 and continues to flow toward the roller control valve. The filter sheet 722 is advantageous in reducing the probability of impurities or moisture in the air flow entering the roller control valve or brake control valve 4.

Referring to fig. 5 and 6, when the filter 722 needs to be replaced, the user places a new filter 722 in any of the air intake holes 721 that are not in communication with the air duct 712. The rotating disc 72 is rotated, so that the rotating disc 72 drives the new filter plate 722 to move towards the air pipe 712, when the new filter plate 722 is abutted with the positioning piece, the air pipe 712 is communicated with the corresponding air inlet hole 721, and further replacement of the filter plate 722 is completed, and the replacement of the filter plate 722 is convenient.

Referring to fig. 5 and 6, the rotating disc 72 is provided with a receiving groove 723 communicating with an annular groove 729, and a sealing tube 724 is slidably connected in the receiving groove 723, and the inner diameter of the sealing tube 724 is adapted to the outer diameter of the air pipe 712. The rotating disc 72 is vertically provided with a moving groove 725, and the length direction of the moving groove 725 is perpendicular to the axial direction of the sealing tube 724. The movable block 726 is connected in the movable groove 725 in a sliding manner, the movable block 726 is attached to the inner wall of the movable groove 725, and the movable groove 725 limits the movable block 726, so that the movable block 726 moves along the length direction of the movable groove 725.

Referring to fig. 5 and 6, the rotating disc 72 is rotatably connected with a threaded rod 727, the threaded rod 727 penetrates through the moving block 726 and is in threaded connection with the moving block 726, when an operator rotates the threaded rod 727, the threaded rod 727 drives the moving block 726 to move, a push rod 75 is arranged between the moving block 726 and the sealing tube 724, one end of the push rod 75 is hinged with the moving block 726, the other end of the push rod 75 is hinged with the sealing tube 724, a yielding port 73 matched with the push rod 75 is formed in the rotating disc 72, when the moving block 726 approaches the sealing tube 724, the sealing tube 724 is driven to move towards the air tube 712 through the push rod 75, the sealing tube 724 is sleeved on the outer side of the air tube 712, air tightness between the air tube 712 and the air inlet hole 721 is improved, and meanwhile, the rotating disc 72 is limited.

Referring to fig. 5 and 6, a rotating handle 728 is fixed at an end of the threaded rod 727 away from the moving block 726, and when a user rotates the rotating handle 728, the rotating handle 728 drives the threaded rod 727 to rotate, so that convenience in rotating the threaded rod 727 by the user is improved. The rotating disc 72 is fixedly connected with a sealing ring 74 matched with the rotating handle 728, the lower end part of the rotating handle 728 is positioned in the sealing ring 74 and is attached to the inner wall of the sealing ring 74, and the sealing ring 74 protects the rotating handle 728, so that the connection stability of the rotating handle 728 and the rotating disc 72 is improved.

The implementation principle of the door opening braking device of the mining rubber-tyred car provided by the embodiment of the application is as follows: in the initial state, the main switch 51 is in an open state, and the roller air control valve 6 is connected to the door. When the vehicle door is closed, the roller pneumatic control valve 6 is in an open state, air flow in the air storage tank 5 enters the brake control valve 4 through the roller pneumatic control valve 6, the brake control valve 4 is in an open state at the moment, the hydraulic pump 2 conveys hydraulic oil to the brake 1 along an oil path, and the brake 1 does not work and the vehicle normally runs at the moment; when the vehicle door is opened in parking inspection, the vehicle door drives the roller control valve to be closed, the air passage is cut off, air flow cannot enter the brake control valve 4, at the moment, the brake control valve 4 is closed, an oil passage between the brake valve and the hand brake valve 3 is closed, the brake 1 is started to stop the vehicle, the vehicle door is opened for braking during parking, and the vehicle door is convenient and fast to brake, so that the sliding probability of the rubber-tyred vehicle during parking inspection is reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a mining rubber-tyred car arresting gear that opens door, includes stopper (1) and drive hydraulic pump (2) that stopper (1) braked, and the intercommunication has the oil circuit, its characterized in that between stopper (1) and hydraulic pump (2): be equipped with manual brake valve (3) between stopper (1) and hydraulic pump (2), be equipped with brake control valve (4) between manual brake valve (3) and stopper (1), brake control valve (4) are equipped with gas holder (5) to the intercommunication has the gas circuit between brake control valve (4) and gas holder (5), is equipped with gyro wheel pneumatic control valve (6) between brake control valve (4) and gas holder (5).

2. The mining rubber-tyred car door opening braking device according to claim 1, wherein: a main switch (51) is arranged between the air storage tank (5) and the roller pneumatic control valve (6), and the main switch (51) is communicated with the air passage.

3. The mining rubber-tyred car door opening braking device according to claim 1, wherein: one end of the air storage tank (5) far away from the roller pneumatic control valve (6) is provided with an air inlet pump (52), and a safety valve (521) is arranged between the air storage tank (5) and the air inlet pump (52).

4. The mining rubber-tyred car door opening braking device according to claim 1, wherein: be equipped with filter (7) between gas holder (5) and main switch (51), filter (7) include two connecting pipes (71) and be located rolling disc (72) between two connecting pipes (71), air vent (711) have all been seted up to connecting pipe (71) to fixedly connected with and trachea (712) of air vent (711) intercommunication, fixedly connected with same bull stick (713) between two connecting pipes (71), revolving disc (72) are worn to establish by bull stick (713) and are rotationally connected with revolving disc (72), revolving disc (72) have been seted up ring channel (729) with trachea (712) adaptation, trachea (712) are located ring channel (729) and with ring channel (729) inner wall laminating, a plurality of inlet port (721) with ring channel (729) intercommunication have been seted up to revolving disc (72), be equipped with filter piece (722) in inlet port (721).

5. The mining rubber-tyred car door opening braking device according to claim 4, wherein: the utility model discloses a sealing device for the air conditioner, including rotary disk (72), sealing device, ejector pin (727), ejector pin (726) are installed in rotary disk (72), holding tank (723) with ring channel (729) intercommunication are offered, be equipped with in holding tank (723) with sealed pipe (712) adaptation pipe (724), sealed pipe (724) cover is located the air pipe (712) outside and is laminated with air pipe (712), one side that sealed pipe (724) kept away from air pipe (712) articulates there is ejector pin (75), rotary disk (72) offered with opening (73) of stepping down of ejector pin (75) adaptation, rotary disk (72) offered with the movable tank (725) of stepping down opening (73) intercommunication, movable tank (725) set up perpendicularly with sealed pipe (724) axial, be equipped with movable block (726) in movable tank (725), ejector pin (75) are articulated with movable block (726), the limiting disk rotation is connected with threaded rod (727), threaded rod (727) wear to establish movable block (726) and with movable block (726) threaded connection.

6. The mining rubber-tyred car door opening braking device according to claim 5, wherein: one end of the threaded rod (727) far away from the sealing tube (724) is fixedly connected with a rotating handle (728), the rotating disc (72) is fixedly connected with a sealing ring (74) which is matched with rotation, and the rotating handle (728) is rotationally connected in the sealing ring (74) and is attached to the inner wall of the sealing ring (74).

7. The mining rubber-tyred car door opening braking device according to claim 1, wherein: the utility model discloses a water storage tank, including gas holder (5), tip intercommunication has drain pipe (53) under gas holder (5), drain pipe (53) lower tip is equipped with the ooff valve, drain pipe (53) are close to the one end of gas holder (5) and are equipped with and hold the chamber, hold the intracavity and be equipped with straight board (531), the one end that straight board (531) deviates from gas holder (5) is equipped with sealing block (532), fixedly connected with spring (533) between straight board (531) and sealing block (532), spring (533) are in compression state, have the trend of promoting sealing block (532) and drain pipe (53) laminating, drain pipe (53) have kicking block (54) along vertical sliding connection, the sloping (541) with sealing block (532) adaptation are offered to kicking block (54), sealing block (532) and sloping (541) laminating, drain pipe (53) rotation is connected with push rod (55), push rod (55) wear to establish kicking block (54) and with kicking block (54) threaded connection.

8. The mining rubber-tyred car door opening braking device according to claim 7, wherein: the drain pipe (53) is fixedly connected with a sealing cover (56), the push rod (55) penetrates through the sealing cover (56) and is connected with the sealing cover (56) in a rotating mode, the push rod (55) is fixedly connected with a disc block (551), and the disc block (551) is located in the sealing cover (56) and is attached to the inner wall of the sealing cover (56).