CN102797404A

CN102797404A - Air pressure type emergency door opening device for bus

Info

Publication number: CN102797404A
Application number: CN2011101615438A
Authority: CN
Inventors: 徐秉朗
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2012-11-28

Abstract

The invention discloses an air pressure type emergency door opening device for a bus. At present, under a fire alarm emergency condition of the bus, passengers can escape from the scene by a method for smashing glass to climb over windows through special-purpose specially-made hammers, but the old, the weak, the sick, the disabled, women, pregnant women and children cannot climb over the windows. By the device, a door can be automatically opened under the fire alarm emergency condition of the bus. According to the device, an embedded coupling with a shifting fork mechanism is arranged on the upper part of a door shaft on the door of the bus; an air pressure type sensor is arranged on a handle of a shifting fork; and a heavy punch type door opening device or a door opening spring is arranged on the door. When the device is in a normal state, the coupling is connected with an upper door shaft and a lower door shaft, and the normal opening and closing of the door can be controlled by a door machine. When a fire alarm is given, the air pressure type sensor generate thrust through air waves, so that the coupling on the door shaft can be automatically loosened by the shifting fork; and at the moment, the door can be automatically opened by the heavy punch type door opening device or the door opening spring. Therefore, the old, the weak, the sick, the disabled, the women, the pregnant women and the children can climb over the windows to quickly and safely escape from the scene like other people without the smash of the glass.

Description

The urgent car door opening device of bus vapour-pressure type

Affiliated technical field

The present invention relates to the urgent car door opening device of a kind of bus vapour-pressure type, especially, when bus fire alarm emergency, electrical equipment, mechanical system are damaged, and car door can't be opened, thereby usually burns much human to death.The present invention can open car door automatically when the fire alarm emergency, the people just can flee the scene rapidly and smoothly.

Background technology

Known, at present during bus fire alarm emergency, hold ad hoc special iron hammer by the passenger and pound cullet, cross the method and the approach of window and flee the scene, but just can't crossing window, the pregnant children of the old,weak,sick and disabled woman flees the scene.

Summary of the invention

When improving present bus fire alarm emergency; Adopt special iron hammer to pound cullet; Cross method and approach that window is fled the scene, but the pregnant children of the old,weak,sick and disabled woman can't cross the deficiency that window is fled the scene, the present invention releases the urgent car door opening device of a kind of bus vapour-pressure type.It need not to pound glass and crosses window when the fire alarm emergency, the automatic unlatching of car door meeting, thereby the pregnant children of the old,weak,sick and disabled woman can both rapid and safe fleeing the scene in the car door of unlatching automatically with other all trapped personnels.

The technical solution adopted for the present invention to solve the technical problems is: be divided into two sections up and down to door-hinge on bus door door-hinge top; Install the embedded associating device that has shifting fork mechanism therebetween additional; Dress vapour-pressure type sensor on the shift fork handle of shifting fork mechanism, and on car door dress Weight type car door opening device/or the spring that opens the door.Embedded associating device at ordinary times it the car door door-hinge up and down two sections uniting, a door machine control car door carries out the normal switch action.During fire alarm, the door machine is out of control, and car door can't be opened.But the blast of explosion time makes the vapour-pressure type sensor produce thrust, throw off associating device on the door-hinge through shift fork, at this moment, and Weight type car door opening device/or the spring that opens the door can be automatically car door opening.

The embedded associating device that has a shifting fork mechanism is by being contained in the key cunning is joined on the epimere door-hinge associating device slippage cover, being contained in associating device connector and the shifting fork mechanism that the segment inferior door axle key excessively cooperates and forming.Head is pitched the shift fork in the associating device slippage grooving, and with the supporting hinges that is fixed on the compartment, the associating device was united stable when the shift fork shank had stable extension spring to make normality.

Weight type car door opening device is by weight, sleeve pipe, stressing, compositions such as pulley.One of stressing ties up to top, car door angle (the right wing car door is a right corner, and left winnowing machine door is a left comer), and other end system is arranged on the weight in the sleeve pipe of one side, and several angle pulleys are established in the centre.When the associating device was thrown off on the door-hinge, stressing was drawn back car door by the weight pulling force automatically.

The spring housing that opens the door leans on the lower margin place in hypomere door-hinge bottom, its lower end is stuck in the floor compartment place, and the upper end is stuck in the door-hinge hole.Make the spring that when closed door, opens the door be the swelling shape.The spring tension force that when the associating device is thrown off, opens the door discharges, and just opens car door automatically.

The invention has the beneficial effects as follows that when bus fire alarm emergency car door can't normally be opened, need not to pound glass and cross window, the vapour-pressure type sensor can make car door open automatically.Like this, the pregnant children of the old,weak,sick and disabled woman can escape the inferno rapidly and smoothly with other all trapped personnels equally.And it is faster than the former, safer.

Below in conjunction with accompanying drawing and embodiment the present invention is further specified

Description of drawings

Fig. 1 is a car door elevation in the railway carriage.

Fig. 2 is Fig. 1 piece number 6 drawings.

Fig. 3 is the A-A sectional view of Fig. 2.

Fig. 4 is that the B of Fig. 1 is to partial view.

Fig. 5 is the interior rear elevation of railway carriage that shows the Weight type door opener.

Fig. 6 is Fig. 1 piece number 6-2 drawing.

1. car doors among the figure, 2. hinge, 3. slippage pin, a 4. machine, 5. door-hinge, 5-1. hypomere door-hinge; 5-2. the epimere door-hinge 6. has the embedded associating device of shifting fork mechanism, 6-1. associating device slippage cover, the 6-2. spring that opens the door, 6-3. associating device connector, 6-4. key; 6-5. shift fork, 6-6. supports, 6-7. vapour-pressure type sensor, 6-7-1. guard shield, 6-7-1. film, 6-7-3. dowel bar; 6-8. stablize extension spring, 7. stressing, 8. weight, 9. sleeve pipe, 10. pulley.

The practical implementation method

In Fig. 1, car door (1) links to each other with door-hinge (5) through hinge (2), and the embedded associating device (6) that has shifting fork mechanism, (referring to Fig. 2) are set up with door machine (4) junction in door-hinge (5) upper end.Slippage pin (3) is stuck in the cotter way on car door (1) angle, its slippage in cotter way during shutter door.Another angle binds the stressing (7) of Weight type car door opening device/or lean on the lower margin place suit spring (6-2) that opens the door in door-hinge (5) bottom, and its lower end is stuck in the floor compartment place, and the upper end is stuck in the door-hinge hole, makes the spring that when closed door, opens the door be swelling shape (referring to Fig. 6).During normality, door machine (4) drives car door (1) through the embedded associating device (6) that has shifting fork mechanism and normally opens and closes the car door action.During fire alarm, associating device (6) is thrown off (referring to Fig. 2), and car door (1) is free state, drawn back by Weight type car door opening device at once (referring to Fig. 4, Fig. 5)/or spring (6-2) tension force that opened the door discharge (referring to Fig. 6) and open automatically.

In Fig. 2, the embedded associating device (6) that has a shifting fork mechanism is gone up the sliding associating device slippage cover (6-1) of joining of key (6-4), is contained in that associating device that hypomere door-hinge (5-1) key (6-4) excessively cooperates engages (6-3) and shifting fork mechanism is formed by being contained in epimere door-hinge (5-2).Shift fork (6-5) supports (6-6) hinge with being fixed on the compartment, and the former head is pitched in associating device slippage cover (6-1) groove, and the shank dress is stablized extension spring (6-8) and united device (6-3) when making normality and unite stable.The vapour-pressure type sensor of being made up of for main body guard shield (6-7-1), film (6-7-2), dowel bar (6-7-3) (6-7) is installed on shift fork (6-5) handle.During normality, door machine (4) drives car door (1) and carries out normal on-off action (referring to Fig. 1) through united epimere door-hinge (5-2) and hypomere door-hinge (5-1) by embedded associating device (6).

When fire alarm, the blast of blast makes vapour-pressure type sensor (6-7) produce air pressure thrust, and dowel bar (6-7-3) pushes shift fork (6-5) handle, and associating device slippage cover (6-1) is dialled to the top, throws off with associating device connector (6-3).Car door this moment (1) is free state, just (referring to Fig. 4, Fig. 5) is opened/or be sleeved on hypomere door-hinge (5-1) bottom and lean on the lower margin place spring (6-2) that opens the door (referring to Fig. 1, Fig. 6) to open by the Weight type car door opening device that is connected by drag-line between Shun.

In Fig. 4, stressing (7) ties up to right wing car door (1) right corner top (left winnowing machine door is a left comer).When the embedded associating device that has shifting fork mechanism on the door-hinge (5) was thrown off, stressing (7) was drawn back car door (1) by weight (8) pulling force (referring to Fig. 1, Fig. 5) automatically.

Claims

1. urgent car door opening device of bus vapour-pressure type is characterized in that: install the embedded associating device, vapour-pressure type sensor and the Weight type car door opening device that have shifting fork mechanism/or the spring that opens the door additional on bus door door-hinge top.

2. the urgent car door opening device of bus vapour-pressure type according to claim 1 is characterized in that: the vapour-pressure type sensor is to be contained on the shift fork handle of the embedded associating device that has shifting fork mechanism.