Unlock instant, AI-driven research and patent intelligence for your innovation.

Train safety air pressure positioning valve

A positioning valve, safety technology, applied in valve details, valve devices, cocks including cut-off devices, etc., can solve the problems of national property and passenger personal safety hazards, easy to be opened or closed artificially, insufficient train braking force, etc. To achieve the effect of easy promotion, easy loading, promotion and application, and simple structure

Pending Publication Date: 2019-03-19
刘世彪
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the analysis, the accidental closing of the plug gate is mostly caused by human beings when the train enters the middle station and stops, which may lead to insufficient braking force of the train, or seriously cause the train brake to fail, endangering the safety of the train.
The valve is a special tool for braking on trains. It is a ball valve that can be opened or closed. Because it is exposed, it is easy to be opened or closed artificially. Improper opening or closing will cause major accidents. Passenger personal safety poses a great risk

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Train safety air pressure positioning valve
  • Train safety air pressure positioning valve
  • Train safety air pressure positioning valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: as figure 1 , figure 2 Shown, valve inlet pipe 10 is equipped with on the left side of ball valve body 13, and valve outlet pipe 2 is equipped with on the right side, and valve ball 12 in ball valve body 13 connects valve wrench 3 by rotating shaft 6 on top. Upper casing 4 is housed on the top of ball valve body 13, has cylinder barrel 22 on the left side of upper casing 4, and the opening of cylinder barrel 22 is equipped with cover 8, and sealing ring 24 is sealed. Piston rod 18 is housed in cylinder barrel 22, and recovery spring 19 is housed on piston rod 18, and sealing ring 20 is equipped with on the left end of piston rod 18, has clamping hole 17 on the rotating shaft 6 corresponding with piston rod 18 right ends. The upper housing 4 is provided with two communicating air holes 23 , 25 , the lower end of the air hole 25 is connected with the valve body cavity 29 , and the upper end of the air hole 23 is connected with the cylinder 22 . There is a...

Embodiment 2

[0018] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that an adjusting screw 31 is added to the air passage 23, and the middle of the adjusting screw 31 is a through hole. By moving the adjusting screw 31, the distance between the top of the adjusting screw 31 and the air passage hole 25 can be adjusted, so as to adjust the size of the airflow entering the hole of the adjusting screw 31 and play the role of airflow damping. The pressure that enters the cylinder barrel 22 instantly when the valve is opened can be changed, so that the force on the piston rod 18 can be changed. The biggest advantage of this embodiment is that it can be adapted to various locomotives, so that this safety air pressure positioning valve can be obtained. widely used.

[0019] The safety air pressure positioning valve is made of stainless steel, precision cast, and assembled separately after machining. Whether the air pressure positioning valve is in the open and locked ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a train safety air pressure positioning valve. A valve air inlet pipe is installed on the left side of a ball valve body, a valve air outlet pipe is installed on the right side of the ball valve body, and a valve ball in the ball valve body is connected to a valve wrench through a rotating shaft on the valve ball. An upper shell is installed on the ball valve body, a cylinder barrel is formed on the left side of the upper shell, the opening of the cylinder barrel is provided with a sealing cover, and the sealing cover is sealed through a sealing ring; and a piston rodis installed in the cylinder barrel, a recovery spring is installed on the piston rod, the sealing ring is installed at the left end of the piston rod, and a clamping hole is formed in the rotating shaft corresponding to the right end of the piston rod. Two communicating air holes are formed in the upper shell, the lower ends of the air holes are connected to the cavity of the valve body, and theupper ends of the air holes are connected to the cylinder barrel. A flat hole is formed on the valve ball in the ball valve body, the flat hole communicates with the hollow body of the valve ball, anda flat head below the rotating shaft is inserted into the flat hole of the valve ball.

Description

technical field [0001] The invention belongs to a train air pressure system valve, in particular to a train safety air pressure positioning valve. Background technique [0002] Pneumatic braking is an essential function for the operation of railway trains. Therefore, the normal operation of the pneumatic system is an important guarantee for train safety. When the valves used in the pneumatic system are closed unexpectedly, it will bring serious safety hazards and even lead to major accidents. In order to prevent human misoperation, put an end to this potential safety hazard. It is necessary to modify the valves used in the pneumatic system so that they cannot be closed when there is pressure to ensure the safety of the pressure system. The Dg32 type valve commonly used on trains has no locking function from a structural point of view, that is, the handle can be lifted to close the valve under any circumstances. According to the analysis, the accidental closure of the plug ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16K5/06F16K35/10F16K35/02
CPCF16K5/06F16K35/022F16K35/10
Inventor 刘世彪
Owner 刘世彪