CN218956025U

CN218956025U - Portable protective clothing air tightness detector

Info

Publication number: CN218956025U
Application number: CN202223020067.0U
Authority: CN
Inventors: 罗开华; 陈洁; 向盔甲; 王彪; 易文; 程禹; 陈小清
Original assignee: Hubei Huaqiang Technology Co ltd
Current assignee: Hubei Huaqiang Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-02
Anticipated expiration: 2032-11-14

Abstract

The utility model provides a portable protective and airtight detector which comprises a case, wherein the top of the case is hinged with a case cover through a hinge, and the opening side of the case cover is connected with the case through a lock catch; the inside of the case is supported and fixed with a detection panel through a plurality of support columns, and the detection panel is provided with a compressed air interface for being connected with an external air source, a pressure measuring interface for being connected with a pressure measuring port of the protective clothing and an inflation interface for being connected with an inflation port of the protective clothing; the compressed air interface is connected with the inflation interface through an air tightness detection loop; the pressure measuring interface is connected with a second pressure sensor; the second pressure sensor and the air tightness detection loop are arranged in the test case. The air tightness detector can detect the air tightness of the protective clothing according to the national standard detection standard; in addition, the air tightness detector adopts a portable design, so that the convenience and the flexibility of the use of the air tightness detector are enhanced.

Description

Portable protective clothing air tightness detector

Technical Field

The utility model relates to a portable protective clothing air tightness detector, and belongs to the technical field of protective clothing detection.

Background

Before leaving the factory, the air tightness of the air tightness protective clothing needs to be detected, and the air tightness detection is carried out by referring to an air tightness test method of GB 24539-2009 general technical requirement of protective clothing chemical protective clothing. The test principle is as follows: the compressed air is depressurized and introduced into the chemical protective clothing to be tested, and a certain positive pressure is generated. And when the pressure meets the test requirement, sealing the protective clothing. The air tightness of the protective garment was assessed by observing the pressure change (pressure drop) in the protective garment. At present, no special air tightness detector is available, and a fixed air tightness detector is mainly adopted, so that the air tightness detector is inconvenient to use, and therefore, the special protective air tightness detector needs to be designed.

Disclosure of Invention

The utility model aims to provide the portable protective clothing air tightness detector aiming at the defects, and the air tightness detector can detect the air tightness of protective clothing by referring to the national standard detection standard; in addition, the air tightness detector adopts a portable design, so that the convenience and the flexibility of the use of the air tightness detector are enhanced.

In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the portable protective and airtight detector comprises a case, wherein the top of the case is hinged with a case cover through a hinge, and the opening side of the case cover is connected with the case through a lock catch; the inside of the case is supported and fixed with a detection panel through a plurality of support columns, and the detection panel is provided with a compressed air interface for being connected with an external air source, a pressure measuring interface for being connected with a pressure measuring port of the protective clothing and an inflation interface for being connected with an inflation port of the protective clothing; the compressed air interface is connected with the inflation interface through an air tightness detection loop; the pressure measuring interface is connected with a second pressure sensor; the second pressure sensor and the air tightness detection loop are arranged in the test case.

And reinforcing ribs are arranged on the outer wall of the case.

The detection panel is provided with a display operation screen at the middle part of the outer side plate positioned at the top, and a power switch and a USB interface are respectively arranged on the side edge of the display operation screen.

The back of the power switch is fixedly provided with a battery through a battery connecting piece.

And the detection panel is fixedly provided with a pressure measurement interface.

The air tightness detection loop comprises a compressed air interface, the compressed air interface is connected with a pressure regulating valve, the pressure regulating valve is connected with a two-way joint, a first pressure sensor is arranged on the two-way joint, and one outlet of the two-way joint is connected with an inflation interface through an electromagnetic valve.

During measurement, the compressed air interface is connected with a compressed air source, and the inflation interface is connected with a protective clothing inflation inlet of the protective clothing through a first hose; the pressure measuring interface is connected with the pressure measuring port of the protective clothing through a second hose.

The utility model has the following beneficial effects:

1. the air tightness detector can detect the air tightness of the protective clothing according to the national standard detection standard; in addition, the air tightness detector adopts a portable case, integrates the detector, the test interface, the air pipe and the like, and further enhances the convenience and flexibility of use.

2. Through the connection process, the test processes such as pressurization, pressure measurement, test data recording and the like can be automatically realized, and the aim of detecting the air tightness performance index of the protective clothing is further achieved.

3. The standby battery can be used for carrying out field detection on the air tightness of the protective clothing, so that the use range and convenience are enhanced.

4. The pressure measurement tool can be used for conveniently storing the pressure measurement interface.

5. Through the USB interface, the data detection and further analysis are facilitated.

6. Through the display operation screen, the testing work adopts touch key one-key operation, so that the operation is quick and convenient to use; the color LCD screen displays the measurement data and can complete the parameter input work of setting detection products.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a first perspective three-dimensional view of the overall structure of the present utility model.

Fig. 2 is a second perspective three-dimensional view of the overall structure of the present utility model.

Fig. 3 is a first perspective three-dimensional view of the overall structure of the present utility model with the cover removed.

Fig. 4 is a second perspective three-dimensional view of the overall structure of the present utility model with the chassis removed.

Fig. 5 is a schematic diagram of the testing process of the present utility model.

In the figure: the pressure measuring device comprises a case 1, a case cover 2, a lock catch 3, a hinge 4, a reinforcing rib 5, a pressure measuring interface 6, a display operation screen 7, a detection panel 8, a compressed air interface 9, a pressure measuring interface 10, a support column 11, an inflation interface 12, a power switch 13, a USB interface 14, a second pressure sensor fixing seat 15, a second pressure sensor 16, a pressure regulating valve 17, a battery 18, a first pressure sensor 19, a two-way connector 20, an electromagnetic valve 21, a first hose 22, a protective suit 23, a second hose 24 and a pressure measuring port 25.

Detailed Description

Embodiments of the present utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1-5, the portable protective and airtight detector comprises a case 1, wherein the top of the case 1 is hinged with a case cover 2 through a hinge 4, and the opening side of the case cover 2 is connected with the case 1 through a lock catch 3; the inside of the case 1 is supported and fixed with a detection panel 8 through a plurality of support columns 11, and the detection panel 8 is provided with a compressed air interface 9 for accessing an external air source, a pressure measuring interface 10 for connecting a pressure measuring port of protective clothing and an inflation interface 12 for connecting an inflation port of protective clothing; the compressed air interface 9 and the inflation interface 12 are connected through an air tightness detection loop; the pressure measuring interface 10 is connected with a second pressure sensor 16; the second pressure sensor 16 and the air tightness detection circuit are arranged inside the test case 1. The air tightness detector can detect the air tightness of the protective clothing according to the detection standard of national standard GB 24539-2009 general technical requirement of protective clothing chemical protective clothing; in addition, the air tightness detector adopts a portable design, so that the convenience and the flexibility of the use of the air tightness detector are enhanced. In the testing process, the inside of the protective clothing is inflated through the inflation interface 12, after a certain pressure is reached, the pressure is maintained for a period of time, and whether the air tightness is qualified is automatically judged by monitoring the pressure change through an automatic detection program.

Further, a reinforcing rib 5 is arranged on the outer wall of the case 1. The structural strength and stability of the chassis 1 are ensured by the reinforcing ribs 5.

Further, a display operation screen 7 is arranged in the middle of the outer side plate, which is positioned at the top, of the detection panel 8, and a power switch 13 and a USB interface 14 are respectively arranged on the side edge of the display operation screen 7. The operation of the detector is conveniently realized through the man-machine interaction mode through the display operation screen 7. The reading operation of data is facilitated through the USB interface 14.

Further, a battery 18 is fixedly installed on the back of the power switch 13 through a battery connector. The battery 18 described above can be used to provide electrical power to the entire air tightness detector.

Further, the pressure measuring interface 6 is fixedly installed on the detecting panel 8. The pressure measuring interface of the protective clothing can be conveniently placed through the pressure measuring interface tool 6.

Further, the air tightness detection circuit comprises a compressed air interface 9, the compressed air interface 9 is connected with a pressure regulating valve 17, the pressure regulating valve 17 is connected with a two-way joint 20, a first pressure sensor 19 is installed on the two-way joint 20, and one outlet of the two-way joint 20 is connected with the inflation interface 12 through an electromagnetic valve 21. By adopting the connection, the air tightness of the protective clothing can be tested.

Further, the pressure measuring interface 10 is connected to a pressure sensor 16. The pressure sensor 16 is arranged in the test case 1, and the pressure sensor 16 can be used for measuring the pressure and detecting the variation of the pressure in a certain time so as to judge whether the pressure meets the air tightness requirement.

Further, during measurement, the compressed air interface 9 is connected with a compressed air source, and the inflation interface 12 is connected with a protective clothing inflation port of the protective clothing 23 through the first hose 22; the pressure tap 10 is connected to a pressure tap 25 of the protective suit 23 via a second hose 24.

Preferably, the internal design of the test equipment adopts a modularized design, the test gas circuit is integrated and modularized to be manufactured, and then the test gas circuit is assembled in different areas in the equipment, and all functions of the test equipment are realized through partition layout. When the device of the air charging circuit is selected, the components with light weight and small volume are selected as far as possible, and under the condition of meeting the test pressure regulating speed, the electromagnetic valve, the pressure regulating valve, the pressure sensor and the like with small volume are selected, and the pipeline adopts a PVC hose and a special connector to ensure the air tightness of the air charging circuit.

The working process and principle of the utility model are as follows:

when the tightness test of the protective clothing is carried out, test conditions are set on an operation screen of the instrument in advance, a tool interface and the protective clothing are installed into a whole, the tightness is ensured, and the interface between the protective clothing and the pressure test is connected through a hose; the method comprises the steps of starting a test, automatically controlling an inflation gas circuit of a detector by a computer of the instrument, adjusting inflation pressure to inflate protective clothing, detecting the pressure of compressed air inflated into the protective clothing by a pressure measuring sensor connected with the protective clothing, transmitting the measured pressure to a controller, and controlling the inflation pressure to be constant at a test specified value by the controller in a feedback mode. And stopping inflating when the pressure in the protective clothing meets the test rule, and entering into the air tight timing work of the protective clothing. In the continuous pressure detection process of the protective clothing, the time reaches the set time, the pressure in the protective clothing is read by an instrument computer, and the pressure drop of the protective clothing is obtained through calculation, namely the air tightness.

Claims

1. Portable protection is taken air tightness detector, its characterized in that: the novel multifunctional electric power box comprises a box (1), wherein the top of the box (1) is hinged with a box cover (2) through a hinge (4), and the opening side of the box cover (2) is connected with the box (1) through a lock catch (3); the inside of the case (1) is supported and fixed with a detection panel (8) through a plurality of support columns (11), and the detection panel (8) is provided with a compressed air interface (9) for accessing an external air source, a pressure measuring interface (10) for connecting a pressure measuring port of the protective clothing and an inflation interface (12) for connecting an inflation port of the protective clothing; the compressed air interface (9) is connected with the inflation interface (12) through an air tightness detection loop; the pressure measuring interface (10) is connected with a second pressure sensor (16); the second pressure sensor (16) and the air tightness detection loop are arranged in the test case (1).

2. A portable protective-garment air-tightness detector according to claim 1, wherein: and reinforcing ribs (5) are arranged on the outer wall of the case (1).

3. A portable protective-garment air-tightness detector according to claim 1, wherein: the detection panel (8) is provided with a display operation screen (7) at the middle part of the outer side plate positioned at the top, and a power switch (13) and a USB interface (14) are respectively arranged on the side edge of the display operation screen (7).

4. A portable protective-garment air-tightness detector according to claim 3, wherein: the back of the power switch (13) is fixedly provided with a battery (18) through a battery connecting piece.

5. A portable protective-garment air-tightness detector according to claim 1, wherein: the pressure measuring interface (6) is fixedly arranged on the detecting panel (8).

6. A portable protective-garment air-tightness detector according to claim 1, wherein: the air tightness detection loop comprises a compressed air interface (9), the compressed air interface (9) is connected with a pressure regulating valve (17), the pressure regulating valve (17) is connected with a two-way joint (20), a first pressure sensor (19) is installed on the two-way joint (20), and one outlet of the two-way joint (20) is connected with an inflation interface (12) through an electromagnetic valve (21).

7. A portable protective-garment air-tightness detector according to claim 1, wherein: during measurement, the compressed air interface (9) is connected with a compressed air source, and the inflation interface (12) is connected with a protective clothing inflation inlet of the protective clothing (23) through a first hose (22); the pressure measuring interface (10) is connected with a pressure measuring port (25) of the protective clothing (23) through a second hose (24).