CN2289037Y

CN2289037Y - External tilting door for bus

Info

Publication number: CN2289037Y
Application number: CN 97214479
Authority: CN
Inventors: 陆威雷
Original assignee: No5 Factory Of Beijing Bus General Factory
Current assignee: No5 Factory Of Beijing Bus General Factory
Priority date: 1997-04-25
Filing date: 1997-04-25
Publication date: 1998-08-26
Anticipated expiration: 2007-04-25

Abstract

The utility model relates to an external pendulum door for a bus, belonging to the technical field of a motor vehicle. The utility model uses a single main cylinder (18) which simultaneously drives two door leaves (1) and (2) through a linkage mechanism; the piston rod (35) of the main cylinder (18) and the small piston rod (37) are provided with mechanical self-locking mechanisms; the main cylinder (18) and the attached cylinder (21) are mutually matched under the action of an electromagnetic reversing valve (24); when the door leaves (1) and (2) are opened and closed, the self-locking mechanisms can be automatically opened or closed. The utility model has the advantages that the door leaves (1) and (2) have good synchronicity, when air supply is cut and the bus door is closed, people can not push and open the door, when air supply is cut and the bus door is opened, the people can push and close the bus door. The utility model also has the advantages of high safety, simple structure, and low cost.

Description

Door swung outside for bus

The utility model belongs to automotive field, relates to a kind of door swung outside for bus.

In the prior art, door swung outside for bus is divided into two kinds of worm gear, worm screw mechanical transmission-type and cylinder driving types, the former power consumption height, and easily burn motor, be out of order easily, the latter is two air-cylinder types, be that every door leaf needs two cylinder transmissions, poor synchronization, and structure and control system complexity, involve great expense.

The purpose of this utility model is, a kind of door swung outside for bus is provided, and adopts single cylinder transmission simultaneously two door leafs, and synchronism is good, and is simple in structure, safe and reliable, and cost is low, is specially adapted to the airport hardstand door swung outside for bus, also can be used for the single door of single open-door formula.

Concrete scheme is as follows:

Having the doorway pedal 42, the car door floor 4 that are fixed on the car body reaches across the cylinder pallet 5 on the car door top, and left and

right door leaf

1 and 2, respectively one on left and right door leaf column 3, but be positioned in addition under the car door floor 4 and door leaf and car body hinge balancing stopping means 14 together, it is characterized in that:

A: it is as follows to put structure outward:

Left and

right door leaf

1 and 2 upper and lower positions are fixed with a upper bearing plate 8 and lower support plate 9 respectively, and the height of lower support plate 9 is positioned under the car door floor 4; Left and

right door leaf

1 and 2 upper and lower positions have one to go up abduction back 6 and following abduction back 7 respectively, each abduction back one end and door pillar 3 hinges link together, the other end has bulb linkage 28, and be fixed together with upper bearing plate 8 and lower support plate 9 respectively by bolt, female 29, stop screw (42) is arranged outside the galianconism of last abduction back (6); Car door column 3, its upper end is equipped with top chock 12 respectively, and is fixed on the locating hole of cylinder pallet 5, interior dress rolling bearing 13, its lower end is equipped with step 10 respectively, and is fixed on the locating hole on car door floor 4, interior dress thrust ball bearing 11;

B: transmission mechanism is as follows:

Spur gear 15 is equipped with at the axle head position that car door column 3 upper ends are passed behind the top chock 12 respectively; Supporting tooth bar 16 is equipped with in spur gear 15 inboards, a left side, and little bearing 30 is equipped with at its back side, and its right-hand member is equipped with pull bar 17, and this pull bar other end is fixed on the fixed head 19 that the front end position of the piston rod 35 of master cylinder 18 is equipped with; Supporting tooth bar 16 is equipped with in right spur gear 15 outsides, and little bearing 30 is equipped with at its back side, and its left end is equipped with pull bar (17), and this pull bar other end is fixed on the fixed head 19 that the front end position of the piston rod 35 of master cylinder 18 is equipped with;

C: gas circuit control and executing agency:

All gas circuit pipelines and parts are fixed on the top of cylinder pallet 5 mutually, move towards according to gas circuit, its composition is as follows successively: the source of the gas gas of adjusting enters three linked piece 41 from pipeline S place, and it is made up of pressure regulator, cleaner, oil sprayer, enters stop valve 23 after coming out by the road; Enter solenoid operated directional valve 25 after coming out again by the road, its below gas feed P respectively adorns an exhausting silencer choke valve 25 in both sides; Gas is after a of solenoid operated directional valve 24 tops exports out, enter the inlet throttle valve 26 of master cylinder 18 back cavities top by the road, enter master cylinder 18 back cavities then, gas is after the b of solenoid operated directional valve 24 tops exports out, through tee junction 40, one the tunnel is connected to the inlet throttle valve 26 of master cylinder 18 ante-chambers top, enters master cylinder 18 ante-chambers then, and press to attached cylinder 21 on another road;

The small piston rod 37 of attached cylinder 21, end and vertical rod 36 are fixed together, and vertical rod 36 tops are enclosed within on the connecting rod 31 in the form of a ring; Connecting rod 31 right-hand members and check plate 22 are fixed together, and the other end of check plate 22 is by pin 33 and support plate 32 hinges, support plate 32 be fixed on master cylinder 18 cylinder body on; Shrinking back when small piston rod 37 puts in place, and the piston rod 35 of master cylinder 18 is released when putting in place the stop mouth on the check plate 22, the top of just in time blocking fixed head 19; Spring 38 is enclosed within on the small piston rod 37, is positioned at attached cylinder 21;

Solenoid operated directional valve 24 required power lines are connected on the gauge tap of bridge instrumentation dish.

Usefulness of the present utility model is: adopt single cylinder, and two door leafs of transmission simultaneously, synchronism is good; The source of dying, shape is closed at the car door place, and the people pushes away not open; The source of dying, if the car door place opens shape, the people pushes away and can close the door, and is safe and reliable; Simple in structure, cost is low.

Accompanying drawing 1, front view (by outwards looking in the car door); Accompanying drawing 2, A-A view;

Accompanying drawing 3, B-B view (car door is opened shape); Accompanying drawing 4, schematic diagram of gas circuit;

Accompanying drawing 5, master cylinder 18 and attached cylinder 21 chain schematic diagrams;

Embodiment: further auspiciously in conjunction with the accompanying drawings add explanation:

Upper bearing plate 8 and lower support plate 9 are fixed on left and

right door leaf

1 and 2 by bolt, mother, and abduction back 6 and door pillar 3 hinged ends have and split watt 27 formula structures, and tighten together by bolt, mother on the door leaf; 206 type rolling bearings 13 are housed in the top chock 12, are equipped with in the step 10 that 8108 type thrust balls are auxilliary to hold 11: tooth bar 16 is for square, and there is the centre bolt hole in its inner end portion, and little pressing plate 20 is arranged on the plane on one side of inner end, and the studding formula is fixed on the top chock 12; Be fixed with little vertical shaft on the top chock 12, little bearing 30 is installed on this little vertical shaft, and little bearing 30 is selected 202 type rolling bearings for use; Pull bar 17 is a double end bolt formula, and an end is screwed in the tooth bar 16 inner end portion centre bolt holes, and the other end passes the respective aperture on the fixed head 19, and fixed with each other with it by forward and backward locknut 39; The piston rod 35 of master cylinder 18, its front end position is the bolt rod-type, and is by front and back locknut 34, fixed with each other with fixed head 19.

The parts of gas circuit control and executing agency are outsourcing: stop valve 23 is K ₂₃R ₈-L type two-position three way hand pulling type; Solenoid operated directional valve 24 is an envelope formula in the 351045 type 3 position-5 ways; Choke valve 26 and exhausting silencer choke valve 25 are JTS-Z ₈Type heading joint hair style; Attached cylinder 21 is selected the slim cylinder Φ 16 of QGD, single-acting formula for use; Master cylinder 18 is selected the axial light-duty cylinder of QGBG, Φ 63 * 125 for use; Source of the gas wiring pipeline Φ 8.

It is 0.85～0.9Mpa that source of the gas enters three linked piece 41 preceding pressure stabilitys, behind three linked piece 41, is 0.7Mpa; Solenoid operated directional valve 24 required power supplys are direct current 24V.Operating principle and method of operating:

Choke valve 26 and exhausting silencer choke valve 25 are in normally open, and the launching trolley motor after the source of the gas atmospheric pressure is normal, is opened stop valve 23;

(1) open the door:

Opening power gauge tap, solenoid operated directional valve 24 electromagnet S at this moment ₂Action, gas is through a road of b outlet and tee junction 40, and the inlet throttle valve 26 of master cylinder 18 ante-chambers top, enter in master cylinder 18 ante-chambers, simultaneously, gas is through another road of b outlet and tee junction 40, quick without hindrance air feed is to attached cylinder 21, small piston rod 37 is ejected prior to master cylinder piston bar 35 action faces, thereby the vertical rod 36 by being connected upwards promotes connecting rod 31, holds concurrently to drive check plate 22, make the stop mouth on it throw off fixed head 19, open the mechanical self-latching of master cylinder 18 stockaded village alive bars 35, thereby piston rod 35 can slowly be moved to the right, and drive fixed head 19, double drive pull bar 17 and tooth bar 16 move in the same way, and then drive left, right two spur gears 15 are done mutual backward rotation, reach by door pillar 3, following abduction back 6 and 7 chain gearing drive a left side,

right door leaf

1 and 2, outer turn-off opens synchronously, and has stopping means 14 spacing.

Because master cylinder 18 air inlet ports are equipped with choke valve 26 speed governing, so bradykinesia; Attached cylinder 21 air inlet Lu Shangwu choke valves can be opened the mechanical self-latching of master cylinder 18 piston rods 35 fast, guarantee to open the door smoothly.

Little pressing plate 20 can prevent tooth bar 16 displacement of beating, and little bearing 30 can make tooth bar 16 location, can guarantee that again its operation is happy.

(2) close the door:

The powered-down gauge tap, at this moment, the electromagnet S of solenoid operated directional valve 24 ₁Action, gas is through the inlet throttle valve 26 of a outlet and master cylinder 18 back cavities top, enter in the back cavity of master cylinder 18, promote piston rod 35, slowly motion left is by the transmission of associated latch mechanism, drive a left side,

right door leaf

1 and 2 changes synchronously closes, at this moment, master cylinder 18 ante-chambers and attached cylinder 21 are exhaust condition, and small piston rod 37 is shunk back, by the vertical rod 36 that is connected, spur check plate 22 downwards, after door was closed and put in place, the piston rod 35 of master cylinder 18 was released when putting in place, the moving admittedly plate 19 of promotion moves left and puts in place, stop mouth on the check plate 22, the top of just in time blocking fixed head 19 reaches mechanical self-latching.

Claims

1. door swung outside for bus, having the doorway pedal (42), car door floor (4) that are fixed on the car body reaches across the cylinder pallet (5) on the car door top, and left and right sides door leaf (1) and (2), each one on left and right door leaf column (3), be positioned at car door floor (4) in addition but under with door leaf and car body hinge balancing stopping means (14) together, it is characterized in that:

A, to put structure outward as follows:

Left and right door leaf (1) and (2) upper and lower position are fixed with a upper bearing plate (8) and lower support plate (9) respectively, and the height of lower support plate (9) is positioned under the car door floor (4); Left and right door leaf (1) and (2) upper and lower position have one to go up abduction back (6) and following abduction back (7) respectively, each abduction back one end and door pillar (3) hinge link together, the other end has bulb linkage (28), and be fixed together with upper bearing plate (8) and lower support plate (9) respectively by bolt, mother (29), there is stop screw (42) in the galianconism outside of last abduction back (6); Car door column (3), its upper end is equipped with top chock (12) respectively, and is fixed on the locating hole of cylinder pallet (5), interior dress rolling bearing (13), its lower end is equipped with step (10) respectively, and is fixed on the locating hole of car door floor (4), interior dress thrust ball bearing (11);

B, transmission mechanism are as follows:

Spur gear (15) is equipped with at the axle head position that car door column (3) upper end is passed behind the top chock (12) respectively; Supporting tooth bar (16) is equipped with in spur gear (15) inboard, a left side, and little bearing (30) is equipped with at its back side, and its right-hand member is equipped with pull bar (17), and this pull bar other end is fixed on the fixed head (19) that the front end position of the piston rod (35) of master cylinder (18) is equipped with; Supporting tooth bar (16) is equipped with in right spur gear (15) outside, and little bearing (30) is equipped with at its back side, and its left end is equipped with pull bar (17), and this pull bar other end is fixed on the fixed head (19) that the front end position of the piston rod (35) of master cylinder (18) is equipped with;

C, gas circuit control and executing agency:

All gas circuit pipelines and parts are fixed on the top of cylinder pallet (5) mutually, move towards according to gas circuit, its composition is as follows successively: the source of the gas gas of adjusting enters three linked piece (41) from pipeline S place, and it is made up of pressure regulator, cleaner, oil sprayer, enters stop valve (23) after coming out by the road; Enter solenoid operated directional valve (24) after coming out again by the road, its below gas feed P respectively adorns an exhausting silencer choke valve (25) in both sides; Gas enters the inlet throttle valve (26) of master cylinder (18) back cavity top by the road after a of solenoid operated directional valve (24) top exports out, enter master cylinder (18) back cavity then; Gas is after the b of solenoid operated directional valve (24) top exports out, and through tee junction (40), the one tunnel is connected to the inlet throttle valve (26) of master cylinder (18) ante-chamber top, enters master cylinder (18) ante-chamber then, and another road is connected to attached cylinder (21):

The small piston rod (37) of attached cylinder (21), end and vertical rod (36) are fixed together, and vertical rod (36) top is enclosed within on the connecting rod (31) in the form of a ring; Connecting rod (31) right-hand member and check plate (22) are fixed together, and the other end of check plate (22) is by pin (33) and support plate (32) hinge, and support plate (32) is fixed on the cylinder body of master cylinder (18); Shrinking back when small piston rod (37) puts in place and master cylinder (18) piston rod (35) is released when putting in place, and the stop mouth on the check plate (22) just in time blocks the top of fixed head (19); Spring (38) is enclosed within on the small piston rod (37), is positioned at attached cylinder (21);

The required power line of solenoid operated directional valve (24) is connected on the gauge tap of bridge instrumentation dish.

2. door swung outside for bus according to claim 1, its feature is following: upper bearing plate (8) and lower support plate (9), be fixed on left and right door leaf (1) and (2) by bolt, mother, abduction back on the door leaf (6) and the hinged end of door pillar (3), have and split watt (a 27) formula structure, and tighten together by bolt, mother.

3. door swung outside for bus according to claim 1 and 2 is characterized in that: tooth bar (16) is for square, and there is the centre bolt hole in its inner end portion, and little pressing plate (20) is arranged on the plane on one side of inner end, and the studding formula is fixed on the top chock (12); Top chock is fixed with little vertical shaft on (12), and little bearing (30) is installed on this little vertical shaft; Pull bar (17) is a double end bolt formula, and an end is screwed in tooth bar (16) the inner end portion centre bolt hole, and the other end passes the respective aperture on the fixed head (19), and fixed with each other with it by forward and backward locknut (39).

4. door swung outside for bus according to claim 1 and 2 is characterized in that: the piston rod (35) of master cylinder (18), its front end position is the bolt rod-type, and is fixed with each other by front and back locknut (34) and fixed head (19).

5. door swung outside for bus according to claim 3 is characterized in that: the piston rod (35) of master cylinder (18), its front end position is the bolt rod-type, and is fixed with each other by front and back locknut (34) and fixed head (19).