CN216925982U - Ultralow atmospheric pressure leakproofness detector - Google Patents
Ultralow atmospheric pressure leakproofness detector Download PDFInfo
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- CN216925982U CN216925982U CN202220113286.4U CN202220113286U CN216925982U CN 216925982 U CN216925982 U CN 216925982U CN 202220113286 U CN202220113286 U CN 202220113286U CN 216925982 U CN216925982 U CN 216925982U
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an ultralow air pressure sealing detector, wherein one end of a filter is fixedly communicated with an external air compressor through a connecting pipe, air generated by the air compressor is mutually communicated with a pressure regulating valve through the filter, one end of an outlet of the pressure regulating valve divides gas transmitted by the air compressor into two parts through a three-way valve, one part of the gas is fixedly communicated with a test pressure sensor through a pressure valve, and one end of the test pressure sensor is electrically connected with an input end of a processing chip. The utility model has the advantages that the ultra-low air pressure cavity sensor is arranged, the detector has high measurement precision, sensitive response, high precision and high linearity, automatic leak detection can be realized, high pressure resistance can be realized, the ultra-low air pressure cavity sensor can be integrated on a clamp and other automatic equipment, the detector can effectively work in a severe production environment, the utility model is simple and easy to operate, and the high-precision test result with the flow rate of 0.01cc/min and the pressure attenuation of 0.1Pa can be accurately provided under the condition of reducing the detection time.
Description
Technical Field
The utility model relates to the technical field of leak detectors, in particular to an ultralow-pressure sealing detector.
Background
When machine devices such as automobiles, aviation, medical treatment, electronics, refrigeration equipment, household appliances and gas equipment are manufactured, the airtightness of parts in the devices needs to be detected, the produced machine parts meet the use and safety requirements, and when the airtightness of the devices is detected, an airtightness leak detector device needs to be used for detection.
The existing equipment has low detection accuracy in the process of detecting the air tightness of parts, has slow reaction in the detection process, and can not accurately detect the tiny gas leakage in the process of detecting the tiny flow leakage of a safety valve, so that an ultralow-pressure air tightness detector is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an ultralow air pressure sealing detector to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: an ultralow air pressure tightness detector comprises a filter, a pressure regulating valve, a pressure valve, a testing pressure sensor, a processing chip, an inflation valve, an ultralow air pressure cavity sensor and a calibration port, wherein one end of the filter is fixedly communicated with an external air compressor through a connecting pipe, air generated by the air compressor is mutually communicated with the pressure regulating valve through the filter, one end of an outlet of the pressure regulating valve divides gas transmitted by the air compressor into two parts through a three-way valve, one part of the gas is fixedly communicated with the testing pressure sensor through the pressure valve, one end of the testing pressure sensor is electrically connected with an input end of the processing chip, the other part of the gas is fixedly communicated with two groups of cavities of the ultralow air pressure cavity sensor through two groups of the inflation valves and the connecting pipe, two ends of the two groups of the ultralow air pressure cavity sensors are fixedly communicated with testing holes, and two ends of the ultralow air pressure cavity sensor are electrically connected with the input end of the processing chip through connecting wires, one end of each of the two groups of test holes is fixedly communicated with the calibration port.
Furthermore, the output end of the processing chip is fixedly communicated with an external display screen, and the display screen is used for displaying the reduction value of the gas pressure tested by the testing pressure sensor and the ultra-low pressure cavity sensor.
Furthermore, the inside of the ultra-low air pressure cavity sensor is separated into two cavities with balanced air pressure through a magnetic conductive ring and a diaphragm, and the two groups of cavities are fixedly communicated with an inflation valve through connecting pipes.
Furthermore, two sets of test hole one end connecting pipe is provided with the test valve.
Compared with the prior art, the utility model has the following beneficial effects: the utility model has the advantages that the ultra-low pressure cavity sensor is arranged, so that the detector has high measurement precision, sensitive response and high precision, realizes automatic leak detection, can resist high pressure, is integrated on a clamp and other automatic equipment, can effectively work in a severe production environment, is simple and easy to operate, and can accurately provide a high-precision test result with the flow rate of 0.01cc/win (min) and the pressure attenuation of 0.1Pa under the condition of reducing the detection time.
Drawings
FIG. 1 is a schematic view of the connection structure of the present invention.
In the figure: the device comprises a filter 1, a pressure regulating valve 2, a pressure valve 3, a test pressure sensor 4, a processing chip 5, an inflation valve 6, an ultra-low pressure cavity sensor 7, a test valve 8 and a calibration port 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an ultralow air pressure tightness detector comprises a filter 1, a pressure regulating valve 2, a pressure valve 3, a testing pressure sensor 4, a processing chip 5, an inflation valve 6, an ultralow air pressure cavity sensor 7 and a calibration port 9, wherein one end of the filter 1 is fixedly communicated with an external air compressor through a connecting pipe, air generated by the air compressor is mutually communicated with the pressure regulating valve 2 through the filter 1, one end of an outlet of the pressure regulating valve 2 divides gas transmitted by the air compressor into two parts through a three-way valve, one part of the gas is fixedly communicated with the testing pressure sensor 4 through the pressure valve 3, one end of the testing pressure sensor 4 is electrically connected with an input end of the processing chip 5, the other part of the gas is fixedly communicated with two groups of cavities of the ultralow air pressure cavity sensor 7 through two groups of the inflation valve 6 and the connecting pipe, and two ends of the two groups of the ultralow air pressure cavity sensors 7 are fixedly communicated with testing holes, the two ends of the ultra-low air pressure cavity sensor 7 are electrically connected with the input end of the processing chip 5 through connecting wires, and one end of each of the two groups of test holes is fixedly communicated with the calibration port 9.
Further, the output end of the processing chip 5 is fixedly communicated with an external display screen, and the display screen is used for displaying the reduction value of the gas pressure tested by the testing pressure sensor 4 and the ultra-low pressure cavity sensor 7.
Furthermore, the inside of the ultra-low pressure cavity sensor 7 is separated into two cavities with balanced air pressure through a magnetic conductive ring and a diaphragm, and the two groups of cavities are fixedly communicated with the inflation valve 6 through connecting pipes.
Furthermore, two sets of test hole one end connecting pipe is provided with test valve 8.
When the device is used, firstly, air generated by the air compressor is conveyed through the filter 1 and the pressure regulating valve 2, then the gas is divided into two streams by the three-way valve on one side of the pressure regulating valve 2, the pressure regulating valve 2 can be controlled by the processing chip 5, so that the gas with corresponding pressure can be blown out through the pressure regulating valve 2, then one stream of the gas transmits data to the inside of the processing chip 5 through the pressure valve 3 and the testing pressure sensor 4, at the moment, pressure data to be tested can be converted into data to be input to the processing chip 5, then the other stream of the gas can be transmitted to the insides of two groups of cavities inside the ultra-low pressure cavity sensor 7 through the inflating valve 6, the air pressure inside two cavities separated by the magnetic ring and the diaphragm in the cavity of the ultra-low pressure cavity sensor 7 is kept balanced, therefore, the magnetic ring and the diaphragm do not change, and the pressures on two sides are the same, when the element is required to be detected, the testing valve 8 is firstly opened, a detection hole on one side of the ultra-low air pressure cavity sensor 7 is opened, the detection part is communicated with the calibration port 9, the ultra-low air pressure cavity sensor 7 can detect the element at the moment, the detected data can be transmitted to the inside of the processing chip 5, the initial data of the pressure regulating valve 2 detected by the testing pressure sensor 4 and the data detected by the ultra-low air pressure cavity sensor 7 can be jointly transmitted to the inside of the processing chip 5 for data comparison, the data detected by the processing chip 5 can be detected through the display screen, and at the moment, whether the detected element leaks or not can be detected in real time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an ultralow atmospheric pressure leakproofness detector, includes filter (1), air-vent valve (2), pressure valve (3), test pressure sensor (4), handles chip (5), gas charging valve (6), ultralow atmospheric pressure cavity sensor (7), calibration mouth (9), its characterized in that: one end of the filter (1) is fixedly communicated with an external air compressor through a connecting pipe, air generated by the air compressor is communicated with the pressure regulating valve (2) through the filter (1), one end of an outlet of the pressure regulating valve (2) divides gas transmitted by the air compressor into two parts through a three-way valve, one part of the gas is fixedly communicated with the test pressure sensor (4) through the pressure valve (3), one end of the test pressure sensor (4) is electrically connected with an input end of the processing chip (5), the other part of the gas is fixedly communicated with two groups of cavities of the ultra-low pressure cavity sensor (7) through two groups of the inflation valves (6) and the connecting pipe, two ends of the two groups of the ultra-low pressure cavity sensors (7) are fixedly communicated with test holes, and two ends of the ultra-low pressure cavity sensor (7) are electrically connected with an input end of the processing chip (5) through a connecting wire, one end of each of the two groups of test holes is fixedly communicated with the calibration port (9).
2. The ultra-low air pressure leak tightness detector according to claim 1, characterized in that: the output end of the processing chip (5) is fixedly communicated with an external display screen, and the display screen is used for displaying the reduction value of the gas pressure tested by the testing pressure sensor (4) and the ultra-low pressure cavity sensor (7).
3. The ultra-low air pressure leak tightness detector according to claim 1, characterized in that: the interior of the ultra-low air pressure cavity sensor (7) is divided into two cavities with balanced air pressure through a magnetic conduction ring and a diaphragm, and the two groups of cavities are fixedly communicated with an inflation valve (6) through connecting pipes.
4. The ultra-low air pressure leak tightness detector according to claim 1, characterized in that: and one end connecting pipe of the two groups of test holes is provided with a test valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220113286.4U CN216925982U (en) | 2022-01-17 | 2022-01-17 | Ultralow atmospheric pressure leakproofness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220113286.4U CN216925982U (en) | 2022-01-17 | 2022-01-17 | Ultralow atmospheric pressure leakproofness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216925982U true CN216925982U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220113286.4U Active CN216925982U (en) | 2022-01-17 | 2022-01-17 | Ultralow atmospheric pressure leakproofness detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216925982U (en) |
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2022
- 2022-01-17 CN CN202220113286.4U patent/CN216925982U/en active Active
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