CN105781292A

CN105781292A - Novel bus passenger door safety device

Info

Publication number: CN105781292A
Application number: CN201610107313.6A
Authority: CN
Inventors: 刘慧兰; 钟利华; 冉天月; 谢超; 顾则同; 姚进
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2016-07-20
Anticipated expiration: 2036-02-29
Also published as: CN105781292B

Abstract

A novel bus passenger door safety device comprises an outer ring, a transmission ring, an inner ring, reset springs and pin shafts, and is characterized in that the inner ring is fixedly connected with a rotating shaft; the transmission ring and a bent arm are fixed through bolts; the transmission ring and the inner ring are detachably connected through the pin shafts and the reset springs; and meanwhile the pin shafts squeeze the inner surface of the outer ring all the time under the effect of the reset springs. The novel bus passenger door safety device is simple in structure and easy to obtain, disengagement of the bent arm and the rotating shaft can be reliably achieved, and the very high practical value is achieved.

Description

A kind of novel bus passenger doors safety device

Technical field

The invention belongs to traffic and transport field, particularly to a kind of Novel bus door safety device.

City's witenagemot of China 85% selects bus as primary trip instrument according to statistics, and in the face of so big carrying capacity, bus emergency protective measure just seems particularly important, is worth carefully studying.

Domestic bus frequently with emergency protection measure have: safety hammer, automatic-explosion device, fire extinguisher, atomizer and door pump stop valve.These measures account for from window escape, fire extinguishing and door escape, wherein consider escape efficiency and avoid secondary injury, and door escape is preferred manner.Door escape needs are pressed a pump stop valve and are realized opening Door by Hand to lay down opening/closing door of vehicle mechanism air pressure, but it has two big defects: one, if bus circuit breaks down, door pump stop valve can not work normally, it is impossible to lays down switching mechanism air pressure；Its two, crowd gets lodged in doorway and just cannot open passenger doors once squeeze outward.Can be obtained from above, it is desirable to mode utilize independent system outwards to fully open passenger on public transport door.

ZL201420557447.4 discloses a kind of device outwardly opening passenger on public transport door, described bus is changed to chute connecting rod place threaded originally can the pin of Quick release, when performing enabling signal, mechanical part quickly inwardly regains pin, car guide rail being departed from door-plate, outwards opening the door thus realizing rotating shaft.This kind of structure there is the problem that this patent is not solved by owing to curved boom is connected with rotating shaft, and during disengagement, rotating shaft maintains static to move and causes that curved boom maintains static, the problem that last passenger doors can not outwardly open completely.

Summary of the invention

Present invention aims to the deficiencies in the prior art, it is provided that a kind of independent of bus original system, the rotating shaft of bus and curved boom can be made to be connected the mechanism that change is hinged by fixing.When mechanism is used together with the mechanism that car guide rail can be made to unclamp with door-plate, it is possible to achieve bus door complete external-open in emergency circumstances.

The technical solution adopted for the present invention to solve the technical problems is: includes outer ring, transmission ring, internal ring, returning spring and bearing pin, it is characterized in that: outer ring is internal for curved profile.Transmission ring can be divided into upper and lower two parts, and upper part is cuboid, has screwed hole, and lower part is cylinder, has shoulder hole.Having pin hole below internal ring, pin hole is blind hole.Bearing pin is multidiameter, and thin axle head carries out chamfering.Described connected mode is that inner surface and the rotating shaft of internal ring is fixing to be connected, and transmission ring utilizes screwed hole to be connected with curved boom, transmits ring and is connected by shoulder hole thereon and pin hole with internal ring.For realizing the connection of shoulder hole and pin hole, need the bolt device being made up of returning spring and bearing pin, returning spring is compressive state, one head is against on the median surface of shoulder hole, other end is against on bearing pin, the thin axle head of bearing pin is through internal ring pin hole and transmission ring shoulder hole, and under the effect of returning spring, big end end face extrudes the inner surface of outer ring always.The hop count of described inner surface contour curve is consistent with the quantity of bearing pin, returning spring.

Driving outer ring rotating during work, bearing pin outwards ejects, and Internal and external cycle separates.

The method have the advantages that

1, the present invention has no effect on the use of bus under normal circumstances, and bus is opened all has original system to be controlled with closing；In case of emergency, outer ring rotating realizes the curved boom of passenger on public transport door and rotating shaft, and by fixing, to be connected change hinged, when mechanism is used together with the mechanism that car guide rail can be made to unclamp with door-plate, it is possible to achieve bus door complete external-open in emergency circumstances, practical value and using value are significantly high.

2, contacted with inner surface by the big end end face of bearing pin, form cam mechanism, it is possible to reaching the various different characteristics of motion, quickly respond, simply compact, simultaneously because multiple bearing pin can be utilized, connection can be accomplished reliable and stable.

Accompanying drawing explanation

Fig. 1 installs design sketch.

Fig. 2 is that mechanical function realizes structural representation.

Fig. 3 is the overall structure schematic diagram of safety device.

Fig. 4 is transmission ring structure schematic diagram.

Fig. 5 is internal ring structural representation.

Fig. 6 is latch assembly structural representation.

Wherein: 1, outer ring, 2, transmission ring, 3, internal ring, 4, returning spring, 5, bearing pin, 6, screwed hole, 7, shoulder hole, 8, pin hole, 9, curved boom, 10, rotating shaft.

Specific embodiments

It is described further by the examples below and in conjunction with the accompanying drawing structure to a kind of novel bus passenger doors safety device of the present invention and operation principle.

In the present embodiment, make the curved boom 9 of bus and rotating shaft 10 structure by the fixing mechanism being connected and becoming hinged as it is shown in figure 1, specifically include that outer ring 1, transmission ring 2, internal ring 3, returning spring 4 and bearing pin 5.

The structure of outer ring 1 is as it is shown in figure 1, inside has curved profile, for cam.The structure of transmission ring 2 is as it is shown on figure 3, be divided into upper and lower two parts, and upper part is cuboid, has screwed hole 6, and lower part is cylinder, has shoulder hole 7.The structure of internal ring 3 as shown in Figure 4, has pin hole 8 below, and pin hole 8 is blind hole.The structure of bearing pin 5 is as it is shown in figure 5, be multidiameter, and thin axle head carries out chamfering.Device assembling mode is as follows: internal ring 3 inner surface is fixing with bus rotating shaft 10 to be connected, and transmission ring 2 utilizes screwed hole 6 to be connected with bus pivoted arm 9, and transmission ring 2 is connected by shoulder hole 7 and pin hole 8 with internal ring 3.As shown in Figure 1, for realizing shoulder hole 7 and the connection of pin hole 8, need the bolt device that returning spring 4 is constituted with bearing pin 5, returning spring 4 is compressive state, one head is against on the median surface of shoulder hole 7, other end is against on bearing pin 5, and the thin axle head of bearing pin 5 is through shoulder hole 7 and pin hole 8, and bearing pin 5 big end end face under the effect of returning spring 4 extrudes the inner surface of outer ring 1 always.

When needing the curved boom 9 making bus to unclamp with rotating shaft 10 phase when being in an emergency, to outer ring 1 external drive so as to rotate so that the contact surface of outer ring 1 and bearing pin 5 moves from inside to outside, and bearing pin 5 is protruding, final internal ring 3 disengages with transmission ring 2 and is connected, and rotating shaft 10 and curved boom 9 become hinged.

Claims

1. a novel bus passenger doors safety device, it is characterized in that being made up of outer ring (1), transmission ring (2), internal ring (3), returning spring (4), bearing pin (5), described transmission ring (2) is divided into two sections, and one section has shoulder hole (7), and one section has screwed hole (6)；Described internal ring (3) has pin hole (8)；Described transmission ring (2) is connected with curved boom (9) by screwed hole (6), and internal ring (3) is connected with rotating shaft (10)；Described returning spring (4) one end is against on bearing pin (5), and one end is against on shoulder hole (7)；Thin axle head traverse shoulder hole (7) of described bearing pin (5) and pin hole (8).

2. a kind of novel bus passenger doors safety device as claimed in claim 1, it is characterised in that: outer ring (1) inner surface profile is curve, and curve hop count is consistent with the quantity of bearing pin (5), returning spring (4).

3. a kind of novel bus passenger doors safety device as claimed in claim 1, it is characterised in that: bearing pin (5) thick axial end under the effect of returning spring (4) extrudes the inner surface of outer ring (1) always.