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Pressure inspection valve

A pressure and valve body technology, applied in the field of detection valves, can solve the problems of poor applicability, low detection accuracy, difficult to apply to scientific test occasions with extremely high detection accuracy requirements, etc., and achieves high detection accuracy, improved convenience and structure. compact effect

Active Publication Date: 2019-04-05
TAIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device achieves the detection of gas pressure at different positions of the gas channel by setting multiple pressure measuring tubes, that is, the gas pressure at different positions is detected by multiple pressure sensors, but due to individual differences between different pressure sensors, it is impossible to guarantee each pressure. The detection accuracy of the sensors is consistent, so although the device realizes multi-channel pressure detection, the detection accuracy is not high, which makes it difficult for the device to be used in scientific experiments that require extremely high detection accuracy, and its applicability is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as Figure 1 to Figure 4 As shown, the pressure inspection valve includes a valve body 1, the valve body 1 includes a shell 1a with a cylindrical inner cavity 1a2, and a cylindrical sleeve 1b is fixed in the inner cavity 1a2 of the shell 1a, and a sleeve 1b is provided on the sleeve 1b. There are five air inlet holes 1b1 and one air outlet hole 1b2. The five air inlet holes 1b1 are sequentially arranged at intervals along the circumference of the sleeve 1b and are at the same height. Each air inlet 1b1 is provided with an installation hole 1a1 corresponding to each air inlet 1b1 on the shell 1a, and each air inlet 1b1 is connected with an air inlet connector 6, and the inlet connector 6 is located in the corresponding installation hole 1a1. By providing the air inlet joint 6 , it is convenient to connect the air inlet 1b1 to the pipeline for transporting gas, and at the same time ensure better sealing performance and improve detection accuracy. Similarly, an air o...

Embodiment 2

[0038] The structure and principle of this embodiment are basically the same as that of Embodiment 1. The difference is that the induction unit includes a pressing piece 4 fixed on the outer wall of the connecting shaft 10, and the outer wall of the top of the valve body 1 is provided with an air inlet 1b1. The number of infrared sensors is equal, and each infrared sensor is arranged one by one on the top of each air inlet 1b1, and the rotating shaft 81 rotates so that the entrance of the air guide channel 32 is connected with any air inlet 1b1. Directly above. When the entrance of the air guide channel 32 is connected with a certain air inlet 1b1, the pressing piece 4 also moves to the right above the corresponding infrared sensor. At this time, the infrared sensor triggers and sends an electrical signal to the control unit, and the control unit obtains which one The air intake hole 1b1 is in a communicating state.

Embodiment 3

[0040] The structure and principle of this embodiment are basically the same as that of Embodiment 1, the difference lies in: the motor 8 of the driving structure, and the motor 8 directly drives the inner column 2 to rotate.

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Abstract

The invention provides a pressure g inspection valve, and belongs to the technical field of detection valves. The pressure inspection valve solves the problem that in the prior art, when the air pressure at different positions is detected, the detection precision is not high. The pressure inspection valve comprises a valve body, wherein a plurality of air inlet holes and an air outlet hole are formed in the valve body, an inner column capable of rotating is arranged in the valve body, an air guide passage is formed in the inner column, the air guide passage always communicates with the air outlet hole, and the inner column can enable the air guide passage to communicate with any one air inlet hole through rotation and plug the other air inlet holes. The pressure inspection valve further comprises an induction unit used for sensing the communication state between the air inlet holes and the air guide passage, and a driving structure capable of driving the inner column to rotate. According to the pressure inspection valve, the accuracy and convenience of multi-path air pressure detection are improved.

Description

technical field [0001] The invention belongs to the technical field of detection valves and relates to a pressure inspection valve. Background technique [0002] During the operation of various mechanical equipment, it is often necessary to detect the gas pressure at different positions of the mechanical equipment, so as to obtain the operating status of the mechanical equipment. In the prior art, for the detection of gas pressure at different positions, the gas at each position is led out through pipelines, and a pressure sensor is respectively installed on each pipeline to detect the gas pressure at different positions. [0003] As disclosed in the Chinese patent literature, a gas pressure detection assembly (authorized notification number: CN203422188U) includes a gas channel with one end sealed and the other end used to connect to a high-pressure gas source; one end is in sealed communication with the gas channel, and There are at least two pressure-taking tubes at the ...

Claims

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Application Information

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IPC IPC(8): F16K11/085F16K37/00
CPCF16K11/085F16K37/00
Inventor 张莉张永炬李洪毅
Owner TAIZHOU UNIV
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