Sealing mechanism for high-pressure detection of TMC master cylinder

A technology of high-pressure detection and sealing mechanism, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, etc., which can solve the problems of high device cost and inability to solve the problem of good sealing of TMC main cylinder, etc., and achieve the effect of effective sealing

CN109827709APending Publication Date: 2019-05-31上海新灏机电设备有限公司
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a sealing mechanism for high-pressure detection of a TMC master cylinder. The sealing mechanism comprises a reference table board, a ventilation pull rod, a positioning sliding sleeve, a limiting sleeve, a sealing member and a ventilating pressure head. The positioning sliding sleeve, the limiting sleeve, and the sealing member sleeve the ventilating pressure head successively from bottom to top. The ventilating pressure head is fixedly arranged at the upper end of the ventilation pull rod. A positioning assembly for supporting the TMC master cylinder fixedly is arranged at the upper part of the reference table board; and the positioning sliding sleeve is fixedly installed at the lower end of the reference table board. A driving mechanism is connected to the lowerend of the ventilation pull rod. The ventilation pull rod moves up and down in the positioning sliding sleeve and the limiting sleeve under the effect of the driving mechanism. Compared with the priorart, the sealing mechanism has the following beneficial effects: sealing of the TMC master cylinder is realized from bottom to top and from the inside to outside and the complete sealing is guaranteed; and a problem that lots of pressures are need when the end surface of the master cylinder is pressed on the table board and the sealing is not firm in the prior art is solved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a sealing mechanism, in particular to a sealing mechanism used for high-pressure detection of a TMC master cylinder. Background technique

[0002] The TMC master cylinder is a casting. After the product is manufactured, high-pressure testing is required to detect whether the product is defective. During high-pressure testing, it is necessary to seal the master cylinder completely, and then inject high-pressure gas for testing. During the high-pressure detection of the TMC master cylinder, the detection pressure is as high as 200bar. The current sealing method is to directly press the end face of the master cylinder to the table for sealing. This sealing method requires a lot of pressure, and because the end face of the master cylinder has not been processed, it is not easy. The seal is complete, and air leakage is easy to occur, which brings great inconvenience to the testing process.

[0003] Patent CN206431071U discloses a ...

Examples

Embodiment

[0040] figure 1 It is the TMC master cylinder to be detected in the present invention. Such as Figure 2-7 , the present invention provides a sealing mechanism for TMC master cylinder high pressure detection, including a reference table 4, also includes a sealing ventilation unit, the sealing ventilation unit includes a ventilation rod 7, a positioning sliding sleeve 8, a limit sleeve 9, a seal 10 and The ventilation pressure head 11, the positioning sliding sleeve 8, the limit sleeve 9 and the seal 10 are sequentially set on the ventilation rod 7 from bottom to top, the ventilation pressure head 11 is fixed on the upper end of the ventilation rod 7, and the top of the reference table 4 is set There is a positioning component for fixing and supporting the TMC master cylinder 1. The positioning sliding sleeve 8 is fixedly installed on the lower end of the reference table 4. The lower end of the ventilation rod 7 is connected to the driving mechanism. Under the action of the dr...