CN2288865Y

CN2288865Y - Lifting dampener for car

Info

Publication number: CN2288865Y
Application number: CN 97205928
Authority: CN
Inventors: 王金伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-22
Filing date: 1997-01-22
Publication date: 1998-08-26
Anticipated expiration: 2007-01-22

Abstract

The utility model discloses a lifting dampener for cars. A movable cylinder sleeve is fixed to the top of a slide bar on the basis of oil bath dashpot sleeves, piston-type slide shafts and compression springs of the original dampeners for cars. A tire-shaped weight bearing air bag is arranged in the cavity of the sleeve; the inflation and deflation of the air bag is controlled by an air passage control system in a circular ring tray and the sleeve cavities above the compression spring; thereby, the sleeve and the lubrication oil are lifted and pushed by the expanded air bag, and a chassis which is fixed to the slide bar is pushed and lifted, increasing the clearance of the chassis to ground. Cars are ensured to run through rugged mountain roads. The lifting dampener for cars with the advantages of simple structure and flexible action increases the range of the adaptation to the road surface of the car.

Description

Car lifting mode shock absorber

The utility model relates to the improvement of car accessory, especially a kind of car lifting mode shock absorber, and it belongs to the automobile mechanical technical field.

Why existing car can move on smooth road surface reposefully, is that its chassis angle of attach and departure angle are also little than other commuter vehicle because its chassis installation site is lower, and only there is 15mm its chassis ground Clearance.After particularly in car, occupying the people, when the high stone of piece 80～90mm is arranged on the road surface, just may break its chassis to the car that passes through.On rough hill path, the car carrying capacity is just poorer.The shock absorber of existing car generally is by oil bath damping cylinder sleeve, and the compression spring that piston type slide-bar, cover are sitting on the cover outer lug boss is formed.This cylinder sleeve is installed on the wheel shaft by the base in strap bolt hole.Compression spring is fixed on the chassis by its top pallet and nut.This shock absorber height is limited and cause the installation position of chassis lower.

The purpose of this utility model is exactly to overcome the lower defective of passenger-car chassis, designs a kind of lifting mode shock absorber.Can travel by the former ground Clearance in normal flat road surface, when advancing, chassis is raise, make car can pass through rough hill path, enlarge the adaptation road surface of car in the hill path.This shock absorber is except that the advantage that keeps former shock absorber, and the block construction of setting up is simple, and it is reliable, flexible that running is wanted.

The purpose of this utility model has following technical scheme to realize, developed a kind of car lifting mode shock absorber, it comprises: the oil bath damping cylinder sleeve that has base hold-down bolt hole, the sliding piston type slide-bar that is contained in this cover, it is outer and fall to being sitting in compression spring on the cylinder sleeve outer lug boss to be enclosed within this, on the thread segment on this top, screw thread is fixed with the movable cylinder sleeve that the vertical section is " door " font, this cover internal chamber wall sliding fit is with the annulus pallet that is fixed on the compression spring top, the centre hole sliding fit of this pallet is enclosed within on this optical axis section, promptly this axle can slide up and down in this hole, on this cover internal chamber wall bottom bead, be provided with spacing internal projecting ring, in the chamber that this cover inner chamber more than ring and this pallet constitute, also be provided with the air bag of BOGEY WHEEL the form of the foetus, this Air sac cover is on this optical axis section, the tire tube valve of this air bag charging and discharging tracheae and be connected on the air-path control system from this cover top, and by this system regulation air bag is filled, venting.

This car military shock absorber of lifting, described air-path control system, it is connected with in turn by tracheae: air pump, boiler check valve, pressure limiting relay, electromagnetism aie escape valve are connected in parallel on four air bags on the tracheae; Wherein, the pressure limiting relay also is connected between source switch and the air pump motor by lead, and below the specified air pressure of all air bags, connect air pump motor, booster air pump work is perhaps more than the specified air pressure of all air bags, then cut off the air pump motor switch by this relay, many pumps quit work; Wherein, the electromagnetism aie escape valve is also by lead and air pump motor and on source switch, and when the energized switch, closes this aie escape valve, guarantees airbag aeration when cutting off the electricity supply switch, is opened this aie escape valve, emits the pressurized air in the air bag.

The utility model has the advantages that since in the tip designs of compression spring movable cylinder sleeve connect solid piston type slide-bar, its airbag aeration that is arranged on the cylinder sleeve inner chamber expands and elevate a turnable ladder, thereby the chassis is lifted on the top, vehicle body is improved can pass through rough hill path.This shock absorber has promptly kept the oil bath damping of former shock absorber and the characteristics of spring damping, can raise the chassis again as required and guarantee, make the car mountain area many, advance freely in the hill path by rough road surface, enlarged the adaptation road surface scope of car, the propelling vehicle industrial expansion.Because bag material is processed easily, movable cylinder sleeve also need not higher processing technology, so this shock absorber is simple in structure, makes easily, and operates reliably flexibly.

Embodiment of the present utility model further describes as follows in conjunction with the accompanying drawings, as shown in the figure:

Fig. 1 is the elevate a turnable ladder elevation structural cutaway view of car with the lifting mode shock absorber.

Fig. 2 hangs down the bit architecture cutaway view for car with the decline of lifting mode shock absorber.

Fig. 3 is the air-path control system block schematic diagram of car with the lifting mode shock absorber.

Improve the shock absorber of one group of " modern times " car, made it to become the lifting mode shock absorber of this car.Its chassis rising amplitude is 95mm.Concrete structure is: keep the oil bath damping cylinder sleeve 2 that has base hold-down bolt hole 1 of former car shock absorber, this overlaps 2 bases and is installed on the axletree by bolt and hole 1 thereof.The sliding military slide-bar 4 of piston that is contained in this cover 2.It is 4 outer and fall to being sitting in compression spring 5 on cylinder sleeve 2 outer lug boss 3 to be enclosed within this.Improved be that screw thread is fixed with the movable cylinder sleeve 7 that the vertical section is " door " font on the thread segment 6 on this 4 top.This overlaps 7 tops and is fixed on the chassis by the thread segment slide-bar of fixing on it again.This overlaps 7 internal chamber wall sliding fits and is with the annulus pallet 8 that is fixed on compression spring 5 tops.Centre hole 9 sliding fits of this pallet 8 are enclosed within on this optical axis section of 4.Promptly this axle 4 can slide up and down in this hole 9.Overlap on the 7 internal chamber wall bottom beads at this and to be provided with spacing internal projecting ring 10.In the chamber of this cover inner chamber of ring 10 or more and this pallet 8 formations, also be provided with the air bag 11 of BOGEY WHEEL the form of the foetus.This air bag 11 is enclosed within on this optical axis section of 4.The tire tube valve 12 of this air bag 11 is connected on the air-path control system from the tracheae 13 that charges and discharge of this cover top ports, and by this system regulation air bag is charged and discharged gas.

Described air-path control system as shown in Figure 3, it is connected with in turn by tracheae 13: air pump 14, boiler check valve (check valve) 15, pressure limiting relay 16, electromagnetism aie escape valve 17 is connected in parallel on four air bags 11 on the tracheae 13.Wherein pressure limiting relay 16 also turns between source switch 19 and air pump 14 motors by lead 18.Electromagnetism aie escape valve 17 also passes through lead 18 and air pump 14 motor parallels on source switch 19.When car need raise, energized switch 19 can make air pump 14 work by pressure limiting relay 16, and air communication is crossed boiler check valve 15 and entered 11 inflations of 13 pairs of four air bags of tracheae.This moment, the electromagnetism aie escape valve was closed its air-outlet valve because of energising, guaranteed air bag 11 inflations.When air bag 7 inflation is quite sufficient, airbag inflation and jacking plays movable cylinder sleeve 7, and then the chassis is improved.When air bag 11 internal pressures are enough big (when reaching rated pressure), pressure limiting relay 16 is that may command is cut off air pump 14 motor powers and stopped pump gas, this moment, electromagnetism aie escape valve 17 continued to close its air-outlet valve because of energized switch 19, guarantee the pressure in the air bag 11, and keep chassis height not fall.When air bag 11 internal pressures were not enough, pressure limiting relay 16 can be connected air pump 14 motor switch and make air pump 14 work, guaranteed that to replenish source of the gas air pressure is enough for air bag 11.When motorcar body need set back, as long as PTO Power Take Off switch 19, at first air pump 14 quits work, simultaneously, electromagnetism aie escape valve 17 is opened its air-outlet valve because of outage, pressurized air in gas circuit 13 and the air bag 11 is emitted, and air bag 11 is contracted in the chamber narrow and small between the cover inner chamber of movable cylinder sleeve 7 and the annulus pallet 8.Because vehicle body deadweight, movable cylinder sleeve 7 is glided along the centre hole 9 of annulus pallet 8 together with the military slide-bar 4 of piston, to making this shock absorber recover former height, chassis and vehicle body also just set back.

Claims

1, a kind of car lifting mode shock absorber, it comprises: the oil bath damping cylinder sleeve that has base hold-down bolt hole, the sliding piston type slide-bar that is contained in this cover, it is outer and fall to being sitting in compression spring on the cylinder sleeve outer lug boss to be enclosed within this, it is characterized in that: on the thread segment on this top, screw thread is fixed with the movable cylinder sleeve that the vertical section is " door " font, this cover internal chamber wall sliding fit is with the annulus pallet that is fixed on the compression spring top, the centre hole sliding fit of this pallet is enclosed within on this optical axis section, promptly this axle can slide up and down in this hole, on this cover internal chamber wall bottom bead, be provided with spacing internal projecting ring, in the chamber that this cover inner chamber more than ring and this pallet constitute, also be provided with the air bag of BOGEY WHEEL the form of the foetus, this Air sac cover is on this optical axis section, the tire tube valve of this air bag charging and discharging tracheae and be connected on the air-path control system from this cover top, and by this system regulation air bag is filled, venting.

2, the car according to claim 1 military shock absorber of lifting is characterized in that: described air-path control system, and it is connected with in turn by tracheae: air pump, boiler check valve, pressure limiting relay, the disappointing threshold of electromagnetism are connected in parallel on four air bags on the tracheae; Wherein, the pressure limiting relay also is connected between source switch and the air pump motor by lead, and below the specified air pressure of all air bags, connect air pump motor, booster air pump work is perhaps more than the specified air pressure of all air bags, then cut off the air pump motor switch by this relay, air pump quits work; Wherein, the electromagnetism aie escape valve also is connected in parallel on the source switch by lead and air pump motor, and when the energized switch, closes this aie escape valve, guarantees airbag aeration when cutting off the electricity supply switch, is opened this aie escape valve, emits the pressurized air in the air bag.