CN2355938Y

CN2355938Y - Vacuum emergency braking device

Info

Publication number: CN2355938Y
Application number: CN 99237123
Authority: CN
Inventors: 陈贺章
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-28
Filing date: 1999-01-28
Publication date: 1999-12-29
Anticipated expiration: 2009-01-28

Abstract

The utility model relates to a vacuum emergency braking device, which is composed of a cover body, a connecting board, a telescopic pull rod, a vacuum pump, a restoring spring, a switch, etc. The utility model is characterized in that the vacuum in a sealed hollow chamber formed by a friction body and the road surface is pumped by vacuum source, which is controlled and utilized by a brake pedal and the switch to form a low-pressure vacuum area, forming pressure difference between the inside and the outside of the cover body, the pressure difference acts on the friction body and impedes the movement of the friction body, so braking effect can be generated. The utility model has the advantages that the braking distance can be shortened by 20%-50% on the basis of the braking effect of the existing vehicles, providing a safe emergency braking device for the safe operation for vehicles, and safe landing for planes.

Description

A kind of vacuum emergency brake equipment

The utility model relates to the emergency brake arrangement of a kind of vehicle ', aircraft landing.

As everyone knows.Automobile has become indispensable transport facility in modern people's life, improves with social progress to people's the life level of drawing together to play a significantly greater role.But when automobile brings many benefits also for people bring on a disaster, the frequent traffic accident that takes place that Here it is.The major reason that traffic accident takes place is, vehicle behind sudden stop, inertia that can't solution itself, and continue to slide forward, coasting distance is far away more, causes the possibility of traffic accident big more, thereby how to shorten braking distance as far as possible, particularly emergency stopping distance is necessary.

For addressing the above problem, Xu Yuqing has designed a kind of automobile inertial damping arrangement " (notification number 2269347), it is to divide into a carriage at car chassis, adorns total sucker by pole again, total sucker is provided with the deflation hole of band check valve.When emergency brake, total sucker is landed rapidly slide and be out of shape by steering unit, the air of total sucker is discharged by exhausr port, the shovel mouth is rooted out dirt when sliding, adsorb preferably on the edge and the ground that guarantee total sucker, increase automobile and ground-surface contact surface and resistance, the sliding property distance of inertia behind the minimizing automobile urgent brake car.From its description, do not form negative pressure or vacuum in total sucker, thereby can't guarantee that total sucker edge and ground adsorbs preferably, so the emergency braking purpose is inaccessible.

The purpose that this practicality is newly moulded is according to above-mentioned existing problem, be intended to design a kind of can be on existing car brakeing effect basis, shorten the emergency brake arrangement of stopping distance 20%-50%.

The implementation of the utility model purpose is, a kind of vacuum emergency brake equipment, and lid 10 is connected with connecting panel 15 by telescopic lever 6, cramp bar 11, and connecting panel 15 usefulness bolts are contained on the automobile axle 2.Cylinder 7 two ends link to each other with connecting panel 15, cramp bar 11 respectively.Between cylinder 7 and the electromagnetic valve 22, be communicated with flexible pipe 20, flexible pipe 24 respectively between the air tank 25 of electromagnetic valve 22 and Air compressor 24.There is friction piece 33 in lid 10 bottoms, and sealing band 31 has cavity 37 between friction piece, and the hole 13 that communicates with vacuum source by flexible pipe 16 is arranged on the lid of cavity 37 tops.The cylinder 7 other spring 5 that reinstall.Vacuum source can adopt vacuum pump 19.

The positive pole of storage battery 27 connects negative pole again by brake pedal 28, the magnet coil 21 of switch 29 tap electromagnetic valves, vacuum pump 19.

The utility model is described in detail in detail with reference to the accompanying drawings.

Fig. 1 the utility model structural representation

Fig. 2 lid cut-away view

Fig. 3 lid upward view

With reference to accompanying drawing, lid 10 is in the position parallel with the road surface all the time in quiet or moving state.The top of cramp bar 11 links by pin 12 and connecting panel 15, and connecting panel 15 is installed on the automobile axle 2 by bolt.Spring is equipped with in cramp bar 11 inside, and spring plays damping and regulates height.Cramp bar 11 bottoms link by pin 9 and telescopic lever 6, and the telescopic lever other end links by pin 3 and connecting panel 15.

Lid skeleton 36 is a metallic framework, and the middle part has hole 13, the admission port of flexible pipe 16 intercommunicating pores 13 and vacuum pump 19.Friction piece 33 is contained in lid bottom by bolt 64, and friction piece is a rubber, and itself and ground contacting surface have the tire-like decorative pattern.Elastic seal band 3 seal rings 32 are housed around the lid, and the cavity that forms between sealing band and seal ring has pore 38 to communicate with 37 of cavitys between friction piece.

Principle of work of the present utility model is as follows:

With reference to Fig. 1, in the driving way, brake pedal 28 is positioned at the dotted line place, switch 29 disconnects, and the folded magnetic coil 2 of the electricity of electromagnetic valve 22 does not have electricity, and electromagnetic valve 22 is in normal position I, vacuum pump 19 no electricity are not worked, and lid 10 is packed up under the effect of pull back spring 5, is in dotted line position among the figure.

During brake in, step on brake pedal 28 to the solid line position, switch 29 is connected, magnet coil 21 gets electric and work, electromagnetic valve 22 is in connects the I position, and the pressurized air in the Air compressor air tank 25 is through flexible pipe 24, in flexible pipe 20 person who lives in exile's cylinders 7, the thrust that is produced has overcome the pulling force of pull back spring 5, and lid 10 moves down rapidly, and drives telescopic lever 10 expansion.Lid 10 drops down onto among the figure behind the solid line position, and the cavity of lid 10 belows and ground 14 form annular seal spaces.

Simultaneously vacuum pump 19 also electric work, vacuumize by 16 pairs of annular seal spaces of flexible pipe, make the inside and outside formation of lid pressure reduction, pressure continues to press down lid, makes friction piece and road surface closed contact, increases friction force and resistance, reach the purpose of braking, this pressure is in whole braking procedure.

After the parking, releasing of brake pedal 28 is back to the dotted line position, and switch 29 disconnects, vacuum pump 19, magnet coil 21 dead electricity, and the folded valve maintenance I place of electricity, Vacuum solutions is removed in the lid annular seal space, and the high pressure gas in the cylinder 7 are put back to through electromagnetic valve 22 in the air.Under the effect of pull back spring 5, the space that air is 14 through sealing band, seal ring and road surface enters in the cavity 37, and lid is solid to dotted line position, and for pull back spring maintains, prepares against and use next time again.

Other mark is respectively among the figure: 1 automobile back wheel, 4 pins, 8 pins, 17 automotive frames, 18 oil water separators and filter, 23 springs, 29 key seats.

By finding out in the above working process, the utility model is in braking procedure, applied one and acted on the ground-surface bar pressure by friction piece, and in whole braking procedure, thereby can be on existing car brakeing basis, shorten stopping distance 20%-30%,, provide a kind of safe and reliable emergency braking apparatus for vehicle safety operation, aircraft safety land.

Claims

1, a kind of vacuum emergency brake equipment, it is characterized in that lid (10) is by telescopic lever (6), cramp bar (11) is connected with connecting panel (15), connecting panel is contained on the automobile axle (2) with bolt, cylinder (7) two ends respectively with connecting panel (15), cramp bar (11) links to each other, between cylinder and the electromagnetic valve (22), use flexible pipe (20) respectively between the air tank (25) of electromagnetic valve and Air compressor (26), (24) be communicated with, there is friction piece (33) in lid (10) bottom, sealing band (31), cavity (37) is arranged between friction piece, on the lid of cavity top the hole (13) that communicates with vacuum source by flexible pipe (16) is arranged, the other spring (5) that reinstalls of cylinder (7)

The positive pole of storage battery (27) connects negative pole again by brake pedal (24), the magnet coil (21) of switch (29) tap electromagnetic valve, vacuum pump (19),

2, brake gear according to claim 1 is characterized in that lid skeleton (36) is a metallic framework, the switch on hole (13) of cavity, vacuum pump, middle part.

3, according to the described brake gear of claim, it is characterized in that in the sealing band (30) of lid (10) below seal ring (31) being arranged, there is pore (38) to communicate between the cavity (37) between the cavity that forms between sealing band and seal ring and friction piece.

4, brake gear according to claim 3 is characterized in that friction piece (33) is a rubber, and sealing band, seal ring are elastic article.

5, brake gear according to claim 4 is characterized in that friction piece and ground contacting surface have the tire-like decorative pattern.

6, brake gear according to claim 1 is characterized in that cramp bar (10) inside is equipped with spring.

7, brake gear according to claim 1 is characterized in that vacuum source can adopt vacuum pump (19).