Lower valve and high-precision brake valve

A brake valve, high-precision technology, applied in the direction of brakes, brake components, brake transmissions, etc., can solve the problems of size reduction, achieve extended life, improved braking effect, and are not easy to be scratched and corroded Effect

Pending Publication Date: 2017-11-07
谢洪川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Block the air passage connecting the air inlet of the lower valve body and the air outlet of the lower valve body;
[0004] 2. Due to the limitation of the position of the spring, the diameter of the air channel connecting the air inlet of the lower valve body and the air outlet of the lower valve body and the gas storage valve cannot be further reduced. The reduction will further block the air inlet of the lower valve body and the outlet of the lower valve body. The air passage connected by the air port, which contradicts the need for downsizing in the field of automotive air brakes

Method used

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  • Lower valve and high-precision brake valve
  • Lower valve and high-precision brake valve
  • Lower valve and high-precision brake valve

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-3 As shown, this embodiment provides a lower valve body, including a lower valve body 1 with an inner cavity and an open top, the lower valve body is provided with a lower valve body air inlet 101 and a lower valve body air outlet 102, The middle part of the lower valve body is provided with an air storage valve 103 for switching the connection state between the air inlet of the lower valve body and the air outlet of the lower valve body. The air valve is closed, the air inlet of the lower valve body is not connected with the air outlet of the lower valve body, and the external force described in the present invention is the braking force.

[0041] Because in the prior art, the spring connected between the lower end of the piston and the lower valve body is arranged on the air passage, the following defects arise:

[0042] 1. Block the air passage connecting the air inlet of the lower valve body and the air outlet of the lower valve body;

[0043] 2....

Embodiment 2

[0052] Such as Figure 4-9 As shown, a high-precision brake valve includes the lower valve body described in Embodiment 1, and also includes an upper valve body 2 with an inner cavity and an opening at the bottom of the inner cavity. The upper valve body and the lower valve body are also It is fixed by bolts and a sealing ring is set to achieve sealing; it also includes a piston 3 arranged in the inner cavity formed by the combination of the lower valve body and the upper valve body; the upper valve body has an air inlet of the upper valve body, and the piston is the second from top to bottom. Piston part 302 and the 3rd piston part 303, wherein, the diameter of the 2nd piston part is greater than the diameter of described 3rd piston part; A sealing ring is arranged on the edge of the upper valve body and snapped into the inner cavity of the upper valve body, the third piston part cooperates with the lower valve body to control the opening and closing of the lower valve body, ...

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PUM

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Abstract

The invention discloses a lower valve and a high-precision brake valve. The lower valve comprises a lower valve body with an inner cavity and an opening in the top, and a lower valve body air inlet and a lower valve body air outlet are formed in the lower valve body. A gas storage valve used for switching the communicating state of the lower valve body air inlet and the lower valve body air outlet is arranged in the middle of the inner cavity of the lower valve body; the gas storage valve is driven by external force to ascend and descend so as to be opened and closed; and in the initial state, the gas storage valve is closed, and the lower valve body air inlet and the lower valve body air outlet do not communicate with each other. An annular groove provided with an upward opening and used for placing a compression spring is formed in the top of the inner side wall of the lower valve body. According to the lower valve, the independent annular groove is arranged for placing the compression spring, the compression spring can not block an air channel enabling the lower valve body air inlet and the lower valve body air outlet to communicate, the diameter of the air channel and the diameter of the gas storage valve can be further decreased so that the proportion of the lower gas storage valve and an upper valve can be further decreased, the pressure of the upper valve is increased, and the braking effect is greatly improved.

Description

technical field [0001] The invention relates to a lower valve body and a brake valve, in particular to a lower valve body and a high-precision brake valve thereof. Background technique [0002] The brake valve is a part of the automobile air brake braking system, the air inlet of the lower valve body is connected to the air storage tank, and the air outlet of the lower valve body is connected to the brake chamber. When the brake pedal (brake pedal) is stepped on, the output air pressure of the brake valve is used as the control pressure input of the brake valve. The air port enters the brake air chamber instead of flowing through the brake valve, which greatly shortens the inflation pipeline of the brake air chamber and accelerates the inflation process of the air chamber. An independent cavity is formed between the upper valve body of the brake valve and the upper end surface of the piston. After the air in the air storage cylinder enters the interior of the brake valve fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/24B60T15/02
CPCB60T13/24B60T15/02
Inventor 谢洪川
Owner 谢洪川
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