CN214999018U

CN214999018U - Air damper

Info

Publication number: CN214999018U
Application number: CN202121173855.6U
Authority: CN
Inventors: 方登; 牛勇; 吴滔; 刘桂琳
Original assignee: Henan Science And Technology Co ltd
Current assignee: Henan Science And Technology Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-03
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an air damper, which comprises a damping cylinder body, a damping rod matched with the damping cylinder body and a damping piston disc arranged at the lower end of the damping rod and matched with the damping cylinder body; the damping piston disc is provided with an upper vent hole and a lower vent hole, the upper vent hole is provided with an upper one-way valve for ventilating to the upper part of the damping piston disc, and the lower vent hole is provided with a lower one-way valve for ventilating to the lower part of the damping piston disc; the aperture of the upper vent hole is larger than that of the lower vent hole; the bottom of the damping cylinder body is provided with an air inlet one-way valve; the outside of the damping cylinder body is provided with an upper limiting ring, the upper end of the damping rod is provided with an upper mounting plate, the upper limiting ring and the upper mounting plate are provided with an upper damping spring surrounding the damping rod and the damping cylinder body.

Description

Air damper

Technical Field

The utility model relates to a bumper shock absorber technical field, concretely relates to air damper.

Background

The shock absorber is applied to an automobile and mainly used for inhibiting the shock generated when a spring rebounds after absorbing shock and the impact from a road surface. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. The shock absorber is too soft, the vehicle body jumps up and down, and the shock absorber is too hard, so that too much resistance is brought, and the normal work of the spring is hindered. The existing shock absorbers are all oil pressure shock absorbers generally, inert gases are also used as media, once oil leakage or air leakage occurs, the shock absorbers are scrapped, and the service life is short.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a following technical scheme: an air damper comprises a damping cylinder body, a damping rod matched with the damping cylinder body and a damping piston disc arranged at the lower end of the damping rod and matched with the damping cylinder body; the damping piston disc is provided with an upper vent hole and a lower vent hole, the upper vent hole is provided with an upper one-way valve for ventilating to the upper part of the damping piston disc, and the lower vent hole is provided with a lower one-way valve for ventilating to the lower part of the damping piston disc; the aperture of the upper vent hole is larger than that of the lower vent hole; the bottom of the damping cylinder body is provided with an air inlet one-way valve; the outside of the damping cylinder body is provided with an upper limiting ring, the upper end of the damping rod is provided with an upper mounting plate, the upper limiting ring and the upper mounting plate are provided with an upper damping spring surrounding the damping rod and the damping cylinder body.

Furthermore, a fixed plate is arranged at the bottom of the damping cylinder body, a lifting cylinder body with a downward opening is arranged on the lower surface of the fixed plate, a lifting piston disc matched with the lifting cylinder body is arranged in the lifting cylinder body, a lifting column is arranged below the lifting piston disc, the lower end of the lifting column extends out of the damping cylinder body, a lower mounting plate is arranged at the lower end of the lifting column, a lower limiting ring is arranged outside the lifting cylinder body, and a lower damping spring surrounding the lifting cylinder body and the lifting column is arranged between the lower limiting ring and the lower mounting plate; the upper portion of shock attenuation cylinder body is provided with intake pipe and blast pipe respectively, the intake pipe passes through air pump and gas holder intercommunication, the intake pipe with all be provided with the solenoid valve on the blast pipe.

Further, the upper surface of going up the mounting panel and all be provided with the collar on the lower surface of lower mounting panel.

Further, the air inlet one-way valve is communicated with an air filter outside, and the air filter is arranged on the upper surface of the fixing plate.

The utility model has the advantages that: (1) air damper is because air compression ratio is great under the normal conditions, and consequently air absorbing's resistance value is less, the utility model discloses an increase the resistance value of bumper shock absorber, the utility model discloses a damping cylinder body bottom is provided with the check valve that admits air, manages to find time when the damping piston dish moves up, and the check valve that admits air opens, to tonifying qi in the damping cylinder body, constantly makes the pressure increase in the cylinder body, reaches the certain degree until the pressure in the cylinder body, and the check valve that admits air just self-closing, as long as when the damping piston dish moves, will keep certain pressure in the damping cylinder body, and then increase resistance value. And owing to be provided with the check valve that admits air, this utility model's air damper leaks gas slightly and also can mend automatically, can not just lead to the bumper shock absorber to scrap because of leaking gas slightly.

(2) In order to enable the resistance difference between the restoring resistance and the compression resistance, the damping piston disc is provided with an upper vent hole and a lower vent hole, the aperture of the upper vent hole and the aperture of the lower vent hole are set to be larger than that of the lower vent hole, the upper vent hole is provided with an upper one-way valve for ventilating to the upper part of the damping piston disc, and the lower vent hole is provided with a lower one-way valve for ventilating to the lower part of the damping piston disc; therefore, when the damping piston moves upwards, the gas above the damping piston disc enters the lower part of the damping piston disc through the lower vent pipe, and when the damping piston moves downwards, the gas below the damping piston disc enters the upper part of the damping piston disc through the upper vent pipe, so that the upward resistance of the damping piston is larger than the downward resistance, and the difference between the compression resistance and the restoration resistance is generated. The utility model discloses the aperture of air vent is greater than the aperture of air vent down in the setting, and consequently the gas of pressing toward upper portion is many, but the backward flow tolerance is few, also can produce the resistance that recovers from this and the resistance difference of compression.

(3) The utility model discloses be provided with the lift cylinder body, can utilize the intake pipe to aerify in the lift cylinder body, and then realize the rising on chassis, when needs reduce the chassis, utilize the blast pipe with the interior gas outgoing of lift cylinder body can.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

reference numerals: 1-damping cylinder body; 2-upper limiting ring; 3-a shock-absorbing rod; 4, mounting a plate; 5-mounting a damping spring; 6, fixing a plate; 7-an air filter; 8-air inlet check valve; 9-a lower limiting ring; 10-an air inlet pipe; 11-an exhaust pipe; 12-a lifting cylinder; 13-lower damping spring; 14-a lower mounting plate; 15-mounting a ring; 16-a damper piston disc; 17-upper vent hole; 18-lower vent; 19-upper one-way valve; 20-lower check valve; 21-a lifting column; 22-lifting piston disc.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings and examples. As shown in fig. 1-2, the utility model discloses an air damper, including damping cylinder body 1, with damping cylinder body 1 complex shock attenuation pole 3 and set up at the shock attenuation pole 3 lower extreme with damping cylinder body 1 complex damping piston dish 16. The damping piston disc 16 is provided with an upper vent hole 17 and a lower vent hole 18, the upper vent hole 17 is provided with an upper one-way valve 19 for ventilating the upper part of the damping piston disc 16, and the lower vent hole 18 is provided with a lower one-way valve 20 for ventilating the lower part of the damping piston disc 16; the aperture of the upper vent hole 17 is larger than that of the lower vent hole 18; the bottom of the damping cylinder body 1 is provided with an air inlet one-way valve 8, the air inlet one-way valve 8 is communicated with an air filter 7, and the air filter 7 is arranged on the upper surface of the fixing plate 6. The outside of damping cylinder body 1 is provided with spacing ring 2, the upper end of shock attenuation pole 3 is provided with mounting panel 4, go up spacing ring 2 with it encircles to be provided with between the mounting panel 4 shock attenuation pole 3 with damping cylinder body 1's last damping spring 5.

A fixing plate 6 is arranged at the bottom of the damping cylinder body 1, a lifting cylinder body 12 with a downward opening is arranged on the lower surface of the fixing plate 6, a lifting piston disc 22 matched with the lifting cylinder body 12 is arranged in the lifting cylinder body 12, a lifting column 21 is arranged below the lifting piston disc 22, the lower end of the lifting column 21 extends out of the damping cylinder body 1, a lower mounting plate 14 is arranged at the lower end of the lifting column 21, a lower limit ring 9 is arranged outside the lifting cylinder body 12, and a lower damping spring 13 surrounding the lifting cylinder body 12 and the lifting column 21 is arranged between the lower limit ring 9 and the lower mounting plate 14; the upper portion of shock attenuation cylinder body 1 is provided with intake pipe 10 and blast pipe 11 respectively, intake pipe 10 passes through air pump and gas holder intercommunication, intake pipe 10 with all be provided with the solenoid valve on the blast pipe 11. Mounting rings 15 are provided on the upper surface of the upper mounting plate 4 and the lower surface of the lower mounting plate 14.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An air damper characterized in that: comprises a damping cylinder body (1), a damping rod (3) matched with the damping cylinder body (1) and a damping piston disc (16) arranged at the lower end of the damping rod (3) and matched with the damping cylinder body (1); an upper vent hole (17) and a lower vent hole (18) are formed in the damping piston disc (16), an upper one-way valve (19) used for ventilating the upper part of the damping piston disc (16) is arranged on the upper vent hole (17), and a lower one-way valve (20) used for ventilating the lower part of the damping piston disc (16) is arranged on the lower vent hole (18); the aperture of the upper vent hole (17) is larger than that of the lower vent hole (18); the bottom of the damping cylinder body (1) is provided with an air inlet one-way valve (8); the damping cylinder body (1) outside is provided with spacing ring (2) on, the upper end of shock attenuation pole (3) is provided with mounting panel (4), go up spacing ring (2) with go up and be provided with between mounting panel (4) and encircle shock attenuation pole (3) with last damping spring (5) of damping cylinder body (1).

2. An air shock absorber according to claim 1, wherein: a fixing plate (6) is arranged at the bottom of the damping cylinder body (1), a lifting cylinder body (12) with a downward opening is arranged on the lower surface of the fixing plate (6), a lifting piston disc (22) matched with the lifting cylinder body (12) is arranged in the lifting cylinder body (12), a lifting column (21) is arranged below the lifting piston disc (22), the lower end of the lifting column (21) extends out of the damping cylinder body (1), a lower mounting plate (14) is arranged at the lower end of the lifting column (21), a lower limiting ring (9) is arranged outside the lifting cylinder body (12), and a lower damping spring (13) surrounding the lifting cylinder body (12) and the lifting column (21) is arranged between the lower limiting ring (9) and the lower mounting plate (14); the upper portion of shock attenuation cylinder body (1) is provided with intake pipe (10) and blast pipe (11) respectively, intake pipe (10) are through air pump and gas holder intercommunication, intake pipe (10) with all be provided with the solenoid valve on blast pipe (11).

3. An air shock absorber according to claim 2, wherein: and the upper surface of the upper mounting plate (4) and the lower surface of the lower mounting plate (14) are provided with mounting rings (15).

4. An air shock absorber according to claim 2, wherein: the air inlet one-way valve (8) is communicated with an air filter (7) outside, and the air filter (7) is arranged on the upper surface of the fixing plate (6).