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Relief valve pull rod for railway wagon

A technology for railway wagons and relief valves, which is applied to railway car body components, railway braking systems, operating mechanisms of railway vehicle brakes, etc. It can solve the problems of large differences in the length of relief valve rods and the inability to use relief valve rods, etc., to achieve Ease of processing, good use effect, effect of reducing the number of parts

Active Publication Date: 2018-02-13
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the restriction of the car body structure, the position of the control valve is located on one side of the side beam of some models, resulting in a large difference in the length of the two rods of the relief valve, and the length of the short one is too short to use the traditional form of the rod of the relief valve

Method used

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  • Relief valve pull rod for railway wagon
  • Relief valve pull rod for railway wagon

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

[0014] Such as figure 1 , figure 2 As shown, the relief valve pull rod for railway freight cars provided by the present invention includes a draw ring 1, a lift ring 2 and a cotter pin 3, the top of the draw ring 1 is fixedly provided with a lift ring 2, a round hole 4 is arranged above the lift ring 2, and a cotter pin 3 Through the round hole 4 on the suspension ring 2 and the round hole on the relief valve handle of the existing control valve 5 , the relief valve pull rod is connected with the control valve 5 .

[0015] In a preferred embodiment, the pull ring 1 can adopt a trapezoidal pull ring which is convenient for the staff to operate.

[0016] In a preferre...

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Abstract

The invention relates to a release valve pull rod for a railway wagon. The release valve pull rod for the railway wagon is characterized by comprising a pull ring, a lifting ring fixed to the top of the pull ring and a cotter, wherein a round hole is formed in the upper portion of the lifting ring, and the cotter penetrates through the round hole of the lifting ring and a round hole of a control valve to connect the release valve pull rod with the control valve. The release valve pull rod for the railway wagon is simple in structure, easy to machine, good in use effect and capable of being widely manufactured.

Description

technical field [0001] The invention relates to a braking device for railway freight cars, in particular to a relief valve pull rod for railway freight cars. Background technique [0002] The relief valve lever is widely used in railway freight cars at home and abroad. It is the main operating part to realize manual relief in the vehicle air brake system. The components are directly connected to realize the vehicle manual mitigation function. The arrangement of the lever of the relief valve should not only facilitate the safe operation of the ground staff, but also avoid the bad phenomenon of relief caused by blockage during operation. [0003] The layout and design of the existing relief valve tie rods are mainly determined by the structure of the railway wagon, and are arranged in the middle of the wagon body structure or at the end of the wagon body structure, and are fixed by attachments. Due to the limitation of the car body structure, the position of the control valv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H13/02
CPCB61H13/02
Inventor 李雪杨玉竹
Owner CRRC QIQIHAR ROLLING CO LTD