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Cavity space compensable and adjustable upper valve body and pneumatic valve with upper valve body applied

A compensation adjustment, chamber technology, applied in the direction of control valve, air release valve, lift valve, brake, etc., can solve the problem that the braking ability of pneumatic valve cannot cope with the working environment, the braking ability is not improved by compensation, and the braking effect is excellent. , to achieve the effect of easy maintenance or maintenance, good driving experience and obvious effect

Pending Publication Date: 2017-10-17
谢洪川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cavity space of the valve body on the existing pneumatic valve is fixed and cannot be adjusted. After the pedaling force reaches the maximum during the braking process, the air pressure in the cavity of the pneumatic valve will not exceed the peak value, and there is no compensation for the improvement of the braking capacity. Therefore, the current The braking ability of the pneumatic valve cannot cope with a more severe working environment, and cannot achieve a better braking effect in the face of emergencies

Method used

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  • Cavity space compensable and adjustable upper valve body and pneumatic valve with upper valve body applied
  • Cavity space compensable and adjustable upper valve body and pneumatic valve with upper valve body applied
  • Cavity space compensable and adjustable upper valve body and pneumatic valve with upper valve body applied

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Embodiment 1

[0058] Such as figure 1 , figure 2 , image 3 As shown, this embodiment discloses an upper valve body whose chamber space can be compensated and adjusted. Upper valve pneumatic chamber 103; upper chamber 101 is provided with a valve core, upper valve chamber 102 is provided with upper valve chamber seal 4, upper valve gasket 401 located on the upper part of upper valve chamber seal 4, sleeved on The upper valve gasket 6 on the chamber seal, the upper valve spring 5 placed between the chamber seal and the upper valve gasket 6, the upper valve stopper 109 placed under the upper valve gasket 6, the upper valve pneumatic chamber 103 is located The bottom of the upper case 1.

[0059] Preferably, both the upper chamber 101 and the upper valve air storage chamber 102 are cylindrical chambers, and the valve core is cylindrical in shape.

[0060] The spool is composed of a piston sleeve 2 and a driving piston 3; the piston sleeve 2 is connected to the upper housing 1 and a first ...

Embodiment 2

[0104] This embodiment discloses a pneumatic valve. The components and connection methods of the pneumatic valve in this embodiment are the same as those in Embodiment 1, the difference lies in:

[0105] In this embodiment, the upper valve body adopts a valve core with a different structure.

[0106] Such as Figure 5 , Figure 6 As shown, for the spool in this embodiment, the piston sleeve 2 is a sleeve with a "mountain" shape in the longitudinal section, and the piston sleeve 2 is fixedly connected with the upper chamber 101; the inside of the piston sleeve 2 forms a second cavity with the driving piston 3 , the second cavity is provided with a return spring 301, the upper end of the return spring 301 is connected to the upper section of the driving piston 3 and the lower end is connected to the piston sleeve 2; the outer wall of the piston sleeve 2 and the inner wall of the upper housing 1 form a third cavity with a closed upper end and an open lower end body, the third c...

Embodiment 3

[0110] This embodiment discloses a pneumatic valve. The components and connection methods of the pneumatic valve in this embodiment are the same as those in Embodiment 1, the difference lies in:

[0111] In this embodiment, the upper valve body adopts a valve core with a different structure.

[0112] Such as Figure 7 , Figure 8 As shown, the spool in this embodiment, the piston sleeve 2 is a sleeve with a "mountain" shape in the longitudinal section, the piston sleeve 2 is slidably connected with the upper chamber 101, and the inside of the piston sleeve 2 forms a second cavity with the driving piston 3 , the second cavity is provided with a return spring 301, the upper end of the return spring 301 is connected to the upper section of the driving piston 3 and the lower end is connected to the piston sleeve 2; the outer wall of the piston sleeve 2 is provided with a fourth cavity with a closed upper end and an open lower end, the fourth cavity There is a compensating adjust...

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Abstract

The invention discloses a cavity space compensable and adjustable upper valve body and a pneumatic valve with the upper valve body applied. The upper valve body comprises an upper shell; a valve element, an upper valve cavity sealing part, an upper valve gasket, an upper valve spring and an upper valve blocking part are arranged inside the upper shell; and a movable piston sleeve is arranged inside the valve element and can move up and down in the valve element so as to change an air storage space inside the upper shell. The pneumatic valve further comprises a lower valve body; a linkage piston, a lower valve cavity sealing part, a lower valve gasket, a lower valve spring and a lower valve plug are arranged inside the lower valve body; the upper valve body and the lower valve body are connected with independent air supply pumps; the lower valve body is further connected with a brake air chamber; and connection and disconnection of an air path are switched through combined action of the upper valve body and the lower valve body, and then air entering the brake air chamber is controlled to achieve automobile braking. By the adoption of the novel valve element, the more efficient and stable braking effect can be achieved.

Description

technical field [0001] The invention relates to the field of automobile brake pneumatic valves, in particular to an upper valve body whose chamber space can be compensated and adjusted and a pneumatic valve using the upper valve body. Background technique [0002] Pneumatic valve is the main control device in the automobile service braking system. It realizes sensitive follow-up control in the braking process and release process of the dual-circuit main braking system. The brake valve is mainly composed of the upper cavity piston, the lower cavity piston, the push Rod, balance spring, return spring (upper and lower cavity), upper cavity valve, lower cavity valve, air inlet, air outlet, exhaust port, vent hole. When the driver steps on the pedal, the piston presses down the balance spring by stretching the pull rod, and the piston moves down. First, the exhaust valve is closed and the intake valve is opened. The air chamber pushes the diaphragm of the air chamber to rotate t...

Claims

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Application Information

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IPC IPC(8): F16K11/14F16K27/02F16K1/32F16K31/122F16K31/44B60T15/02
CPCF16K1/32F16K11/14F16K27/0263F16K31/1221F16K31/44B60T15/02
Inventor 谢洪川
Owner 谢洪川
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