CN212133976U - Airtight appearance inspection frock - Google Patents
Airtight appearance inspection frock Download PDFInfo
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- CN212133976U CN212133976U CN202021137851.8U CN202021137851U CN212133976U CN 212133976 U CN212133976 U CN 212133976U CN 202021137851 U CN202021137851 U CN 202021137851U CN 212133976 U CN212133976 U CN 212133976U
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Abstract
The utility model discloses an air tightness instrument inspection tool, which comprises a tool box body and a tool assembly which are assembled together; the tool assembly is provided with a pressure gauge for detecting gas pressure in a pipeline, an auxiliary interface for accessing a 20L sealed gas tank and a gas pipe joint for connecting the pressure gauge and the sealed gas tank, and the gas pipe joint is connected with the pressure gauge and the auxiliary interface through PU pipes respectively; the air pipe joint is also provided with a test interface for accessing the air tightness instrument; still be provided with the cylinder that is used for additionally pressurizing for the gas circuit on the frock assembly, the cylinder passes through PU union coupling on the gas pipe connector. The utility model discloses connect airtight appearance on the test interface on test fixture alright with detecting, need not to change the circuit after having detected the maximum error that allows, can directly carry out the gas tightness and detect, the in-process that detects need not artifical timing, has shortened the time that detects, has improved the efficiency that detects and the precision that detects.
Description
Technical Field
The utility model relates to an airtight appearance technical field, especially an airtight appearance inspection frock.
Background
With the continuous development of science and technology, the requirements on products are continuously improved, wherein the requirements on the air tightness of the products are also stricter and stricter, and the products of direct pressure type air tightness detectors (air tightness detectors for short) are also provided. The air-tight instrument is widely applied to the industries of aerospace, new energy automobiles, medical treatment, electronics, electric appliances, refrigeration and the like.
The industries related to the airtight instrument are wide, the demand is high, the number of parts such as pressure sensors, air pumps, electromagnetic valves, adapters and air pipes in the airtight instrument is large, and the performance of the airtight instrument is unqualified probably due to the defect or assembly error of a certain part. Therefore, the function and performance of the air-tight instrument need to be checked when the air-tight instrument leaves a factory, the items of the factory check of the air-tight instrument are more and tedious, the checked content comprises the items of normal working performance, maximum allowable error, stability, pressure sensor error, zero drift, air tightness and the like, detection equipment specially aiming at the air-tight instrument does not exist in the current market, the check is completed by means of a check tool when the maximum allowable error and the air tightness are tested, if the check is not carried out by the check tool, the test result is possibly inaccurate, and the self quality of the air-tight instrument cannot be fully and effectively controlled.
The most common inspection method at present is to connect an air-tight instrument with a 20L closed air tank and a digital pressure gauge by a PU pipe, inflate the air tank by the air-tight instrument, read the data of the air-tight instrument and the digital pressure gauge for calculation after the inflation is finished, and judge whether the air-tight instrument is qualified or not by the method. According to the inspection method, the PU pipe is reconnected when each airtight instrument is tested, manual timing is needed, inspection time is long, inspection efficiency is low, and the requirement for the rapid production rhythm of the airtight instrument cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides an airtight appearance inspection frock, has saved artifical timing link, shortens check-out time, improves detection efficiency.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The air tightness instrument inspection tool comprises a tool box body and a tool assembly which are assembled; the tool assembly is provided with a pressure gauge for detecting gas pressure in a pipeline, an auxiliary interface for accessing a 20L sealed gas tank and a gas pipe joint for connecting the pressure gauge and the sealed gas tank, and the gas pipe joint is connected with the pressure gauge and the auxiliary interface through PU pipes respectively; the air pipe joint is also provided with a test interface for accessing the air tightness instrument; still be provided with the cylinder that is used for additionally pressurizing for the gas circuit on the frock assembly, the cylinder passes through PU union coupling on the gas pipe connector.
Above-mentioned airtight appearance inspection frock, be provided with the gas circuit switch that is used for cutting off the pipeline between airtight appearance and the airtight gas pitcher on the PU pipe between trachea joint and the auxiliary interface.
Above-mentioned air tightness appearance inspection frock, be provided with the stroke guide rail that is used for driving actuating cylinder action on the frock assembly, the end connection of cylinder telescopic link is on the stroke guide rail, and the inside of frock box is provided with the motor of drive stroke guide rail fore-and-aft action, still is provided with the button of control motor action on the frock assembly, and the input of motor is connected to the output of button.
Above-mentioned airtight appearance inspection frock, the button is including the button of advancing that is used for driving the stroke guide rail and moves forward and the button of retreating that is used for driving the stroke guide rail and moves backward, and the input of motor is connected respectively to the output of advancing button and retreating the button.
According to the air tightness instrument inspection tool, the cylinder is an adjustable cylinder with the volume of 0-20 ml.
According to the airtight instrument inspection tool, the air pipe connector is a cross quick connector.
According to the airtight instrument inspection tool, the air circuit switch and the air cylinder are fixed on the tool assembly through bolts respectively.
Above-mentioned airtight appearance inspection frock, the air pipe joint passes through the nylon ribbon to be fixed on the frock assembly.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses connect airtight appearance on the test interface on test fixture alright with detecting, need not to change the circuit after having detected the maximum error that allows, can directly carry out the gas tightness and detect, the in-process that detects need not artifical timing, has shortened the time that detects, has improved the efficiency that detects and the precision that detects.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. the device comprises a tool assembly, 2 pressure gauges, 3 air pipe connectors, 4 air circuit switches, 5 auxiliary interfaces, 6 test interfaces, 7 travel guide rails, 8 buttons, 9 cylinders, 10 PU pipes and 11 tool box bodies.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The structure of the air tightness instrument inspection tool is shown in figure 1, and the air tightness instrument inspection tool comprises a tool assembly 1 and a tool box body 11, wherein the tool assembly 1 is positioned above the tool box body 11, and the tool assembly and the tool box body are assembled.
The tool assembly 1 is provided with a pressure gauge 2, an auxiliary connector 5, a gas pipe connector 3 and a cylinder 9. The pressure gauge 2 is used for detecting the pressure of gas in a pipeline, the auxiliary interface 5 is used for being connected into a 20L sealed gas tank, the cylinder 9 is used for additionally pressurizing the gas pipeline, the gas pipe joint 3 is used for connecting the pressure gauge 2, the sealed gas tank and the cylinder 9, the pressure gauge 2, the sealed gas tank and the cylinder 9 are respectively connected onto the gas pipe joint 3 through a PU pipe 10, the gas pipe joint 3 is a cross quick-connection plug, and the gas pipe joint 3 is further provided with a test interface 6 for being connected with a gas tightness instrument.
Be provided with an air circuit switch 4 on the PU pipe 10 between air pipe joint 3 and the auxiliary interface 5 for cut off the pipeline between airtight appearance and the airtight gas pitcher, when carrying out airtight appearance gas tightness test, test through being connected between airtight appearance of air circuit switch 4 disconnection and the airtight gas pitcher, need not to go again to change the air circuit connecting wire, the operation of being convenient for.
The cylinder is an adjustable cylinder with the volume of 0-20ml and can be adjusted between the volume of 0-20ml, the tool assembly 1 is provided with a stroke guide rail 7, and the end part of the telescopic rod of the cylinder 9 is connected to the stroke guide rail 7. A motor is arranged in a tool box body 11 below the tool assembly 1 and used for driving the stroke guide rail to move back and forth, a button 8 is arranged on the tool assembly 1, and the output end of the button 8 is connected with the input end of the motor and used for controlling the motor to move.
The button 8 comprises a forward button and a backward button, the forward button is used for driving the stroke guide rail 7 to move forwards, the backward button is used for driving the stroke guide rail 7 to move backwards, and the output ends of the forward button and the backward button are respectively connected with the input end of the motor. The forward and backward movement of the stroke guide rail 7 is driven by controlling the forward and backward rotation of the motor through the forward button and the backward button, and the telescopic rod of the cylinder is fixed on the stroke guide rail, so that when the stroke guide rail moves forwards and backwards, the telescopic rod of the cylinder is driven to move, and the volume adjustment of the cylinder in the volume of 0-20ml is realized.
The gas circuit switch 4 and the cylinder 9 are respectively fixed on the tool assembly 1 through bolts, and the stability of the detection tool is enhanced in the detection process. The air pipe joint 3 is fixed on the tool assembly 1 through a nylon binding belt, so that the air tightness instrument can be conveniently inserted and detected.
The utility model discloses when allowwing maximum error to airtight appearance and examining time, connect airtight appearance at test interface, airtight gas pitcher is connected at auxiliary interface, open the gas circuit switch, use airtight appearance to aerify in the airtight gas pitcher of 20L, when the manometer detects automatic timing 100S behind the pressure stabilization, after the atmospheric pressure is stabilized, press the position change that the button made the cylinder telescopic link, change the gas circuit volume, read out the pressure differential measurement value that produces, then resume cylinder telescopic link to primary position, after the repetition test cubic, the record is the pressure differential measurement value that produces under same volume change, judge according to pressure differential value whether airtight appearance satisfies the maximum error of allowwing.
And then, carrying out air tightness detection, firstly setting pressurization time, balance time and detection time on the air tightness instrument, then adjusting an air source to the maximum test pressure allowed by the air tightness instrument, starting inflation, closing an air path switch after the inflation is finished, disconnecting the air tightness instrument from the 20L sealed air tank, observing whether the numerical values displayed by the air tightness instrument and the pressure gauge are consistent, taking down the air tightness after the detection is finished, and replacing the next air tightness instrument for carrying out a new round of detection.
Claims (8)
1. Airtight appearance inspection frock, its characterized in that: comprises a tool box body (11) and a tool assembly (1) which are assembled; the tool assembly (1) is provided with a pressure gauge (2) for detecting gas pressure in a pipeline, an auxiliary interface (5) for accessing a 20L sealed gas tank and a gas pipe joint (3) for connecting the pressure gauge (2) and the sealed gas tank, wherein the gas pipe joint (3) is connected with the pressure gauge (2) and the auxiliary interface (5) through a PU pipe (10); the air pipe joint (3) is also provided with a test interface (6) for accessing an airtight instrument; still be provided with on frock assembly (1) and be used for additionally supercharged cylinder (9) for the gas circuit, cylinder (9) are connected on air pipe connector (3) through PU pipe (10).
2. The airtightness tester inspection tool according to claim 1, wherein: and a gas circuit switch (4) for cutting off a pipeline between the airtight instrument and the airtight gas tank is arranged on the PU pipe (10) between the gas pipe connector (3) and the auxiliary interface (5).
3. The airtightness tester inspection tool according to claim 1, wherein: the tooling assembly is characterized in that a stroke guide rail (7) used for driving an air cylinder (9) to move is arranged on the tooling assembly (1), the end part of a telescopic rod of the air cylinder (9) is connected onto the stroke guide rail (7), a motor used for driving the stroke guide rail to move forwards and backwards is arranged inside the tooling box body (11), a button (8) used for controlling the motor to move is further arranged on the tooling assembly (1), and the output end of the button (8) is connected with the input end of the motor.
4. The airtightness tester inspection tool according to claim 3, wherein: the button (8) comprises a forward button for driving the stroke guide rail (7) to move forwards and a backward button for driving the stroke guide rail (7) to move backwards, and the output ends of the forward button and the backward button are respectively connected with the input end of the motor.
5. The airtightness tester inspection tool according to claim 1, wherein: the cylinder (9) is an adjustable cylinder with the volume of 0-20 ml.
6. The airtightness tester inspection tool according to claim 1, wherein: the air pipe joint (3) is a cross quick-connection-peg.
7. The airtightness tester inspection tool according to claim 2, wherein: and the air circuit switch (4) and the air cylinder (9) are respectively fixed on the tool assembly (1) through bolts.
8. The airtightness tester inspection tool according to claim 1, wherein: the air pipe connector (3) is fixed on the tool assembly (1) through a nylon cable tie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137851.8U CN212133976U (en) | 2020-06-18 | 2020-06-18 | Airtight appearance inspection frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021137851.8U CN212133976U (en) | 2020-06-18 | 2020-06-18 | Airtight appearance inspection frock |
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| Publication Number | Publication Date |
|---|---|
| CN212133976U true CN212133976U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021137851.8U Active CN212133976U (en) | 2020-06-18 | 2020-06-18 | Airtight appearance inspection frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579155A (en) * | 2020-06-18 | 2020-08-25 | 北京迈世高科电子技术有限公司 | Airtight appearance inspection frock |
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2020
- 2020-06-18 CN CN202021137851.8U patent/CN212133976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579155A (en) * | 2020-06-18 | 2020-08-25 | 北京迈世高科电子技术有限公司 | Airtight appearance inspection frock |
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