CN212721883U - Gas pressure detector, detection structure and detection system - Google Patents

Abstract

The utility model discloses a gas pressure detector, detection structure and detecting system, wherein, gas pressure detector includes the valve body, be equipped with the telescopic case in the valve pocket of valve body, the one end of case is fixed with the valve barrel, be equipped with on the valve body with input pore, the output pore of case intercommunication, the input pore is including being used for with the first section of air supply intercommunication, be used for with the second section of potential device's input intercommunication, be used for with the third section of potential device's output intercommunication, the first section and the second section of input pore communicate each other, the third section of input pore with the valve pocket intercommunication of valve body. The utility model discloses gas pressure detector is through the mode that sets up input pore, output pore on the valve body for gas pressure detector need not too much pipeline when being connected with potential device, its compact structure, saving space.

Description

Gas pressure detector, detection structure and detection system

Technical Field

The utility model relates to a gas pressure detection device especially relates to a gas pressure detector, detection structure and detecting system.

Background

The detection principle of the existing gas pressure detection system is as follows: after the pressure of the gas is changed through the pressure changing device, the gas is injected into the pressure detector through the pipeline, the gas pushes the valve core to move, and meanwhile, the pressure of the gas is detected. When the gas pressure reaches a certain value, the valve core can be pushed to block the output port of the pressure detector, and the gas pressure detection is completed.

However, in the existing gas pressure detection system, the gas source and the pressure changing device, and the pressure changing device and the pressure detector are communicated through a plurality of pipelines, and in a narrow space, the existing gas pressure detection system cannot well meet the detection requirement.

Those skilled in the art have therefore endeavored to develop a gas pressure detector, a detection structure, and a detection system that are compact.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the present invention is to provide a gas pressure detector, a detection structure and a detection system with compact structure.

In order to realize the above object, the utility model provides a gas pressure detector, which comprises a valve body, be equipped with the telescopic case in the valve pocket of valve body, the one end of case is fixed with the valve barrel, be equipped with on the valve body with input pore, the output pore of case intercommunication, the input pore including be used for with the first section of air supply intercommunication, be used for with the second section of potential device's input intercommunication, be used for with the third section of potential device's output intercommunication, the first section and the second section of input pore communicate each other, the third section of input pore with the valve pocket intercommunication of valve body.

Preferably, the valve body comprises an upper valve body and a lower valve body which are integrally arranged, the valve pocket is arranged in the valve cavity of the upper valve body, the valve core is arranged in the valve cavity of the lower valve body, and the upper end of the valve core extends into the valve cavity of the upper valve body and is fixedly connected with the valve pocket.

Preferably, a return spring is arranged between the valve sleeve and the lower valve body, and the return spring is sleeved on the valve core.

Preferably, a valve ring is arranged in a valve cavity of the lower valve body, an inner hole of the valve ring is a stepped hole, the lower end of the valve core is a stepped shaft corresponding to the valve ring, and a first sealing ring is arranged at a step where the lower end of the valve core is matched with the valve ring.

Furthermore, a second sealing ring is arranged at the lower end of the valve ring.

Furthermore, the output end of the output pore passage is provided with a third sealing ring.

Preferably, the upper end of the upper valve body is provided with a fixing hole for fixing the voltage transformation device.

Preferably, the fixing hole is located between the second section and the third section of the input duct.

The utility model also provides a gas pressure detects structure, including air supply, potential device, still include foretell gas pressure detector, the air supply connect in the first section of input pore, potential device's input connect in the second section of input pore, potential device's output connect in the third section of input pore.

The utility model also provides a gas pressure detecting system, including foretell gas pressure detector.

The utility model has the advantages that: the utility model discloses gas pressure detector is through the mode that sets up input pore, output pore on the valve body for gas pressure detector need not too much pipeline when being connected with potential device, its compact structure, saving space.

Drawings

Fig. 1 is a perspective view of a gas pressure detector according to an embodiment of the present invention.

Fig. 2 is a front view of a gas pressure detector according to an embodiment of the present invention.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, a gas pressure detector includes a valve body 100, a telescopic valve core 200 is disposed in a valve cavity of the valve body 100, a valve sleeve 300 is fixed at one end of the valve core 200, an input duct 130 and an output duct 140 which are communicated with the valve core 200 are disposed on the valve body 100, the input duct 130 includes a first section 131 for communicating with a gas source (not shown), a second section 132 for communicating with an input end of a pressure changing device (not shown), and a third section 133 for communicating with an output end of the pressure changing device, the first section 131 and the second section 132 of the input duct 130 are communicated with each other, and the third section 133 of the input duct 130 is communicated with the valve cavity of the valve body 100.

In this embodiment, the valve body 100 includes an upper valve body 110 and a lower valve body 120 integrally formed, a valve housing 300 is disposed in a valve cavity of the upper valve body 110, a valve core 200 is disposed in a valve cavity of the lower valve body 120, and an upper end of the valve core 200 extends into the valve cavity of the upper valve body 110 and is fixedly connected to the valve housing 300.

A return spring 400 is arranged between the valve sleeve 300 and the lower valve body 120, and the return spring 400 is sleeved on the valve core 200. Which facilitates the resetting of the valve cartridge 200.

The valve cavity of the lower valve body 120 is provided with a valve ring 500, the inner hole of the valve ring 500 is a stepped hole, the lower end of the valve core 200 is a stepped shaft corresponding to the valve ring 500, and a first sealing ring 610 is arranged at the step part where the lower end of the valve core 200 is matched with the valve ring 500. Facilitating the formation of a seal between the valve spool 200 and the valve ring 500.

The lower end of the valve collar 500 is provided with a second sealing ring 620. Facilitating the formation of a seal against the valve ring 500.

The output end of the output port 140 is provided with a third sealing ring 630. Which facilitates forming a seal against the output port 140.

The upper end of the upper valve body 110 is provided with a fixing hole 150 for fixing the variable pressure device.

In this embodiment, the number of the fixing holes 150 is three, and the fixing holes 150 are located between the second section 132 and the third section 133 of the input duct 130.

The gas pressure detector can be applied to a gas pressure detection structure, and comprises a gas source, a pressure varying device and the gas pressure detector, wherein the gas source is connected to the first section 131 of the input duct 130, the input end of the pressure varying device is connected to the second section 132 of the input duct 130, and the output end of the pressure varying device is connected to the third section 133 of the input duct 130.

In this embodiment, the transformer device is fixed to the fixing hole 150 by a bolt or the like.

The gas pressure detector described above can also be applied to a gas pressure detection system.

When the gas pressure detecting structure works, firstly, gas of a gas source enters the valve body 100 through the first section 131 of the input pore channel 130, namely enters from the lower end of the lower valve body 120, the gas enters the pressure changing device through the input end of the pressure changing device after passing through the second section 132 of the input pore channel 130 for pressure change, the gas after pressure change enters the third section 133 of the input pore channel 130 through the output end of the pressure changing device and then enters the valve cavity of the upper valve body 120, the valve sleeve 300 moves downwards under the action of the gas, and meanwhile, the gas enters the output pore channel 140 through the gas hole of the valve core 200 and then is output out of the valve body 100. When the lower end of the valve core 200 abuts against the valve ring 500, the first sealing ring 610 forms a seal between the valve core 200 and the valve ring 500, so that a passage between the output duct 140 and the valve core 200 is blocked, and the detection is finished. The supply of air to the inlet port 130 is stopped and the valve housing 300 is reset by the return spring 400.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A gas pressure detector comprises a valve body (100), and is characterized in that a telescopic valve core (200) is arranged in a valve cavity of the valve body (100), a valve sleeve (300) is fixed at one end of the valve core (200), an input hole channel (130) and an output hole channel (140) which are communicated with the valve core (200) are arranged on the valve body (100), the input hole channel (130) comprises a first section (131) communicated with a gas source, a second section (132) communicated with an input end of a pressure changing device and a third section (133) communicated with an output end of the pressure changing device, the first section (131) and the second section (132) of the input hole channel (130) are communicated with each other, and the third section (133) of the input hole channel (130) is communicated with the valve cavity of the valve body (100).

2. The gas pressure detector according to claim 1, wherein the valve body (100) comprises an upper valve body (110) and a lower valve body (120) which are integrally arranged, the valve cavity of the upper valve body (110) is provided with the valve sleeve (300), the valve cavity of the lower valve body (120) is provided with the valve core (200), and the upper end of the valve core (200) extends into the valve cavity of the upper valve body (110) and is fixedly connected with the valve sleeve (300).

3. The gas pressure detector according to claim 2, wherein a return spring (400) is disposed between the valve housing (300) and the lower valve body (120), and the return spring (400) is fitted over the valve core (200).

4. The gas pressure detector according to claim 2, wherein a valve ring (500) is disposed in the valve cavity of the lower valve body (120), an inner hole of the valve ring (500) is a stepped hole, the lower end of the valve core (200) is a stepped shaft corresponding to the valve ring (500), and a first sealing ring (610) is disposed at a step where the lower end of the valve core (200) is engaged with the valve ring (500).

5. The gas pressure detector according to claim 4, wherein the lower end of the valve ring (500) is provided with a second sealing ring (620).

6. The gas pressure detector according to claim 1, wherein the output end of the output port (140) is provided with a third sealing ring (630).

7. The gas pressure detector according to claim 2, wherein the upper end of the upper valve body (110) is provided with a fixing hole (150) for fixing the pressure varying device.

8. The gas pressure detector according to claim 7, wherein the fixing hole (150) is located between the second section (132) and the third section (133) of the input port (130).

9. A gas pressure detecting structure comprising a gas source, a pressure varying device, and a gas pressure detector according to any one of claims 1 to 8, wherein the gas source is connected to the first section (131) of the input duct (130), the input end of the pressure varying device is connected to the second section (132) of the input duct (130), and the output end of the pressure varying device is connected to the third section (133) of the input duct (130).

10. A gas pressure detection system comprising the gas pressure detector of claim 1.

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