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Release device, parking brake cylinder and brake caliper unit

A technology for parking brakes and cylinders, which is applied in the field of relief devices, parking brake cylinders and brake caliper units, which can solve problems such as unstable cooperation between hooks and ratchets, and achieve the effect of simple device structure

Active Publication Date: 2022-03-11
QINGDAO SRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manual relief device transmits the input force through the inclined surface of the pull pin. During the movement, the pull hook not only bears force in the axial direction, but also bears force in the axial direction of the pull pin rod body, and the cooperation between the pull hook and the ratchet is unstable.

Method used

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  • Release device, parking brake cylinder and brake caliper unit
  • Release device, parking brake cylinder and brake caliper unit
  • Release device, parking brake cylinder and brake caliper unit

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Embodiment Construction

[0063] The technical solutions of the present application will be described in detail below in conjunction with specific embodiments. However, it should be understood that without further description, elements, structures and features in one embodiment can also be beneficially combined in other embodiments.

[0064] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features . Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature.

[0065] In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connectio...

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Abstract

The application provides a relief device, comprising: a ratchet, a pawl cooperating with the ratchet, and a relief mechanism connected with the pawl to control the positional relationship between the pawl and the ratchet, the relief mechanism includes a first rotation Components, the first shaft, and the first cam. The relief device provided by this application realizes switching of the state of the relief device through the linear movement of the first shaft driven by the first cam. The first shaft is subjected to the pulling force of the first cam, and the first rotating member Receiving the torque transmitted by the first shaft, the force on the first rotating member is stable and single.

Description

technical field [0001] The application belongs to the technical field of rail vehicle braking, and in particular relates to a release device, a parking brake cylinder and a brake caliper unit. Background technique [0002] The parking cylinder is used to provide braking force for long-term parking of the vehicle. The working principle of the parking cylinder is: filling the parking cylinder cavity with pressure medium to release the parking brake, and discharging the pressure medium to apply the parking brake by compressing the spring force. In order to cope with extraordinary situations during the use of the parking cylinder, it is necessary to relieve the parking brake through the relief device when the parking state is not filled with pressure medium. [0003] Chinese patent CN206409553U discloses a manual relief device for a vehicle parking cylinder, which includes a hand relief body fixed on the outer wall of the parking cylinder. The hand relief body has a cavity, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H5/00B61H13/20B61H13/34
CPCB61H5/00B61H13/34B61H13/20
Inventor 覃立伟徐少亭刘晓京刁有彬刘玉萍
Owner QINGDAO SRI TECH CO LTD