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A vacuum cut-off valve used in toilets of railway vehicles

A technology for railway vehicles and toilets, which is applied in the direction of railway car body parts, sanitary equipment, diaphragm valves, etc., can solve the problems of unfavorable maintenance and repair, occupying space, etc., and achieves the advantages of later maintenance and maintenance, easy installation and disassembly, and reasonable layout Effect

Active Publication Date: 2019-04-12
吉林大学重庆研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The globe valves on the existing railway vehicles in our country all adopt the elbow structure. Although it can isolate the outside air, it takes up space during installation and is not conducive to maintenance.

Method used

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  • A vacuum cut-off valve used in toilets of railway vehicles
  • A vacuum cut-off valve used in toilets of railway vehicles
  • A vacuum cut-off valve used in toilets of railway vehicles

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Embodiment Construction

[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] like Figure 1 to Figure 5 As shown, a vacuum shut-off valve for railway vehicle toilets includes a valve cover 1, a valve body 2, a leather cup 3, a curved clip 4, a gland 5 and a rubber duckbill 6, and the upper and lower ends of the valve body 2 and one side are provided with openings and communicate with each other, the gland 5 bolts are connected to the upper end of the valve body 2, the leather cup 3 is connected to the opening on the side of the valve body 2, the valve cover 1 is installed on the leather cup 3, The valve cover 1 and the leather cup 3 are clamped and fastened by the clamp 4 , and the rubber duckbill 6 is arranged in the valve body 2 and communicates with the opening at the upper end of the valve body 2 .

[0022] It ...

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Abstract

The invention discloses a vacuum shut-off valve for railway vehicle toilets, which relates to the technical field of water supply and drainage sanitary equipment for railway vehicles, and includes a valve cover, a valve body, a leather bowl, a curved clamp, a gland and a rubber duckbill. The valve body The upper and lower ends and one side of the valve body are provided with openings and communicate with each other, the gland bolt is connected to the upper end of the valve body, the leather cup is connected to the opening on the side of the valve body, the valve cover is installed on the leather cup, and the valve cover The rubber duckbill is set in the valve body and communicated with the opening at the upper end of the valve body. The invention meets the requirements of the operation of railway vehicles, so that the vehicle can be stationary and the sewage can be discharged smoothly. , When the vehicle moves at high speed and generates negative pressure, it can effectively isolate the air from entering the vehicle toilet. At the same time, the product has a simple structure, reasonable layout, easy installation and disassembly, and is conducive to later maintenance and maintenance.

Description

technical field [0001] The invention relates to the technical field of water supply and drainage sanitation equipment for railway vehicles, in particular to a vacuum cut-off valve used for toilets of railway vehicles. Background technique [0002] This vacuum shut-off valve for railway vehicle toilets is suitable for various railway vehicle toilet products and projects in China. [0003] The toilets of railway vehicles communicate with the outside world through pipes, so as to realize the discharge of sewage. However, when the railway vehicles are running at high speed, because of the Venturi effect, negative pressure will be generated at the entrance of the pipeline, which will cause adsorption to the interior of the toilet. In order to prevent this adsorption If the force destroys the toilet, it is necessary to install a vacuum stop valve on the pipeline. [0004] The globe valves on the existing railway vehicles in our country all adopt the elbow structure. Although they...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/02F16K27/02B61D35/00
CPCB61D35/00F16K7/02F16K27/0236
Inventor 杨雨昕杨延生孟祥雨
Owner 吉林大学重庆研究院
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