CN217443292U

CN217443292U - Test box for testing gas sensor and alarm

Info

Publication number: CN217443292U
Application number: CN202220056354.8U
Authority: CN
Inventors: 周俊萍; 张�杰; 许晴; 于海洋
Original assignee: Shanghai Aegis Industrial Safety Corp
Current assignee: Shanghai Aegis Industrial Safety Corp
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-09-16
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to a proof box for gas sensor and alarm test is suitable for poisonous and harmful gas sensor and alarm test very much, the proof box including sealed box, sealed box the chamber door that can open and shut has, sealed box set up admission valve interface, discharge valve interface and switching interface, the admission valve interface be used for controlling admitting air of sealed box, the discharge valve interface be used for controlling the exhaust of sealed box. The utility model realizes the air tightness and the air pressure balance; the functions of rapid mixing and gas distribution of gas are realized, and the testing efficiency is improved; the safety of the test environment and the test personnel is ensured; the equipment process and the testing steps are simplified, and the cost is reduced.

Description

Test box for testing gas sensor and alarm

Technical Field

The utility model relates to a gas test case technical field, concretely relates to proof box and test method for gas sensor and alarm test.

Background

With economic development and social progress, people use toxic and harmful gases such as carbon monoxide, hydrogen sulfide, nitric oxide, nitrogen dioxide, ammonia gas, sulfur dioxide and the like more and more frequently in industrial production and life, but human health is also more and more emphasized, so that toxic and harmful gas sensors and alarm monitoring become important points of domestic and foreign research gradually. However, in the research and development process of the toxic and harmful gas sensor and the alarm, the performance test of the toxic and harmful gas sensor and the alarm is inevitable.

The existing test method has the following problems:

1. in the testing process, gas is easy to leak, and once the gas is absorbed into the human body, even trace amount of gas can cause unimaginable harm to the human body, even die. Especially, harmful gases such as carbon monoxide are colorless, tasteless and odorless and are difficult to be detected by people, so that the method is important to ensure that no gas is leaked in the testing process and the safety of people is ensured.

2. The current test mostly adopts standard gas to test, and the standard gas test is not only consuming time and power, complex operation, lacks security and the cost is higher.

3. The existing equipment for testing toxic and harmful gases has complex process, high price and high cost, and is not beneficial to actual production and application.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a test box for testing a gas sensor and an alarm, which is particularly suitable for testing a poisonous and harmful gas sensor and an alarm, and can realize gas tightness and air pressure balance; the functions of rapid mixing and gas distribution of gas are realized, and the testing efficiency is improved; the safety of a test environment and test personnel is ensured; the equipment process and the testing steps are simplified, and the cost is reduced.

In order to realize the above-mentioned purpose, the utility model discloses a proof box for gas sensor and alarm test includes sealed box, sealed box have the chamber door that can open and shut, sealed box set up admission valve interface, discharge valve interface and switching interface, the admission valve interface be used for controlling admitting air of sealed box, discharge valve interface be used for controlling the exhaust of sealed box.

Preferably, the air inlet valve port is arranged at the top or the side of the sealed box body; the exhaust valve interface is arranged at the rear part of the sealed box body or at the side surface opposite to the position of the intake valve interface; the adapter interface is positioned at the top, the side or the rear part of the sealed box body; the openable box door is arranged on the front surface of the sealed box body.

Preferably, the openable box door is connected with the sealed box body through a buckle; the test box is provided with sealing rings, and the sealing rings are arranged at one or more of the front part and the top of the sealed box body or the opening part of the openable box door.

Preferably, the sealed box body is in a cubic shape; the sealed box body is a transparent box body.

Preferably, the sealed box body is provided with two exhaust valve interfaces.

Preferably, a fan is arranged in the sealed box body at the air inlet position of the air inlet valve interface.

Preferably, the bottom of the sealed box body is provided with supporting legs.

Preferably, the openable and closable box door is provided with a handle.

Preferably, the air inlet valve interface and the air outlet valve interface are both connected with a direction selection valve with air tightness, so that air inlet and air outlet of the sealed box body are manually controlled; or, the air inlet valve interface and the exhaust valve interface are respectively provided with an electromagnetic valve, and the electromagnetic valves are respectively connected with a control system to realize the automatic control of air inlet and exhaust of the sealed box body.

The utility model discloses a gas test box can be used for components and parts tests such as gas sensor, alarm, and specially adapted poisonous and harmful gas sensor and alarm test can effectively guarantee gas test box's seal, environment and personnel's security when guaranteeing the test.

Drawings

Fig. 1 is a schematic structural diagram of the test box for testing the gas sensor and the alarm of the present invention.

Fig. 2 is a cross-sectional view taken at a-a in fig. 1.

Fig. 3 is a left side view of the test chamber for testing the gas sensor and the alarm of the present invention.

Fig. 4 is the front view of the test box with the sealing ring for testing the gas sensor and the alarm of the utility model.

Reference numerals

1 sealed box

2 fastener

3 handle

4 air inlet valve interface

5 exhaust valve interface

6 switching interface

7 supporting foot

8 Fan

9 hinge

10 sealing ring

11 openable box door

Detailed Description

In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.

As shown in fig. 1-4, for the utility model discloses a schematic structure diagram of a proof box for gas sensor and alarm test, the proof box include sealed box 1, buckle 2, handle 3, admission valve interface 4, discharge valve interface 5, switching interface 6, supporting legs 7, fan 8, hinge 9, sealing washer 10, chamber door 11 can open and shut. The sealed box body 1 is in a cubic shape, so that test components can be conveniently placed in the sealed box body 1, and the test box can be used for testing a gas sensor and an alarm, particularly testing a toxic and harmful gas sensor and an alarm, and can ensure the test environment safety and the life safety; meanwhile, the sealed box body 1 can also be made of transparent materials, so that the running state of a tested component in the sealed box body can be observed conveniently.

As shown in fig. 1, the air inlet valve interface 4 is arranged at the top of the sealed box body 1, and can also be arranged at the side part of the sealed box body 1; 2 exhaust valve interfaces 5 are arranged at the rear part of the sealed box body 1, can also be arranged at the opposite side part of the sealed box body 1 and the intake valve interface 4, and can also be used as interfaces of a detector, a tester and an infrared analyzer; in this embodiment, admission valve interface 4 and discharge valve interface 5 all set up the solenoid valve, and the solenoid valve all links to each other with control system, realizes the automatic control respectively admitting air and the exhaust condition, reaches the effect of adjusting atmospheric pressure in the sealed box 1, can guarantee that the atmospheric pressure is balanced in the sealed box 1. In addition, the air inlet valve interface and the exhaust valve interface can also be connected with a direction selection valve with good tightness, so that manual control of air inlet and exhaust is realized.

As shown in fig. 2, the fan 8 is fixed by screws all around, and can adopt an independent power line, and the fan is arranged in the sealed box body 1 and positioned at the air inlet of the air inlet valve interface 4, and can be arranged at the top or the side part of the sealed box body 1 together with the air inlet valve interface 4, so that the functions of rapid gas mixing, gas diffusion and gas distribution can be realized, and the test efficiency is improved.

As shown in fig. 3, the openable box door 11 is fixed on the sealing box body 1 through the hinge 9, the openable box door 11 is provided with the handle 3, the hinge 9 is used in combination with the handle 3, the opening angle of the openable box door 11 can be effectively controlled, 180 degrees of opening is achieved, and the taking and placing operations of the test board, the test component and the like are facilitated. The sealing box body 1 is provided with more than 2 buckles 2 for fixing the openable box door 11, so that a good balance fixing effect is achieved, and meanwhile, the tightness can be reinforced.

As shown in fig. 4, the sealing ring 10 is disposed at the front portion of the sealed box 1, or at the top portion of the sealed box 1, or at an openable and closable door opening of the sealed box 1, so as to ensure the tightness of the gas test chamber, and the sealing ring 10 is convenient to replace, which can help to prolong the service life of the sealed box.

The sealing function of the test box can be realized by combining the sealing ring, the buckle and the like, gas leakage is avoided, and the accuracy of test data and the safety of test personnel are ensured.

As shown in fig. 1-4, the supporting legs 7 are arranged at the bottom of the sealed box body 1, so that the gas test box can be conveniently moved, the three-dimensional supporting legs 7 are arranged, so that the test box can be conveniently moved, the sealed box body 1 can be prevented from being worn, the service life of the test box can be prolonged, and the effects of moisture prevention, cleanness keeping in the box and the like can be further realized. The switching interface 6 can be arranged at the top, the side part and the rear part of the sealed box body 1, is convenient for switching and communicating a power line, a test data line and the like, and is in seamless connection to be beneficial to the airtightness of the gas test box.

When the gas test box is used specifically, the circuit board or the alarm inserted with the sensor is placed in the sealed box body 1, and the used power line and the signal acquisition line are respectively connected into the circuit board and the fan 8 circuit through the switching interface 6; switching on a power switch to enable the elements and the fan 8 to normally operate, closing the openable box door 11, fastening the buckle 2, and closing the air inlet valve interface 4 and the exhaust valve interface 5; calculating the concentration and volume ratio of the effective volume in the sealed box body 1 to the required gas to obtain the volume of the required test gas; measuring the test gas by adopting a sampling instrument with good tightness, switching the gas into the air inlet valve interface 4, then opening the air inlet valve interface 4, injecting the gas into the sealed box body 1, and closing the air inlet valve interface 4; counting and displaying the collected data of a meter, an instrument or a computer and the like; after the test is finished, opening the exhaust valve interface 5, exhausting by using an air pump and the like, and exhausting the gas into a designated container or space; and when the gas is completely discharged, the power supply is turned off, and the components are taken out.

The utility model discloses a gas test box can be used for components and parts tests such as gas sensor, alarm, and specially adapted poisonous and harmful gas sensor and alarm test can effectively guarantee gas test box's seal, improves efficiency of software testing, environment and personnel's security when guaranteeing the test, simple process, and the test procedure is convenient, and is with low costs, can be used to the actual production application.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The description is thus to be regarded as illustrative instead of limiting.

Claims

1. The utility model provides a proof box for gas sensor and alarm test, its characterized in that, the proof box including sealed box, sealed box have the chamber door that can open and shut, sealed box set up admission valve interface, discharge valve interface and switching interface, the admission valve interface be used for controlling admitting air of sealed box, the discharge valve interface be used for controlling the exhaust of sealed box.

2. A test chamber for testing gas sensors and alarms according to claim 1, characterized in that said air inlet valve port is provided at the top or side of said sealed box; the exhaust valve interface is arranged at the rear part of the sealed box body or at the side surface opposite to the position of the intake valve interface; the adapter interface is positioned at the top, the side or the rear part of the sealed box body; the openable box door is arranged on the front surface of the sealed box body.

3. A test chamber for testing a gas sensor and an alarm according to claim 1, wherein the openable and closable chamber door is connected to the sealed chamber body by a buckle; the test box is provided with sealing rings, and the sealing rings are arranged at one or more of the front part and the top of the sealed box body or the opening part of the openable box door.

4. A test chamber for testing gas sensors and alarms according to claim 1, characterized in that said sealed chamber is cubic in shape; the sealed box body is a transparent box body.

5. A test chamber for testing gas sensors and alarms according to claim 1, characterized in that said sealed chamber is provided with two exhaust valve ports.

6. A test chamber for testing gas sensors and alarms according to claim 1, characterized in that a fan is provided in the interior of the sealed housing at the inlet of the inlet valve port.

7. A test chamber for testing gas sensors and alarms according to claim 1, characterized in that the bottom of the sealed chamber body is provided with support feet.

8. A test chamber for testing gas sensors and alarms according to claim 1, characterised in that the openable and closable chamber door is provided with a handle.

9. A test chamber for testing gas sensors and alarms according to claim 1, wherein the test chamber is used for toxic and noxious gas sensors and alarms testing.

10. A test chamber for testing a gas sensor and an alarm according to claim 1, wherein the air inlet valve port and the air outlet valve port are both connected with a direction selection valve with air tightness to realize manual control of air inlet and air outlet of the sealed chamber body; or, the air inlet valve interface and the exhaust valve interface are both provided with electromagnetic valves, and the electromagnetic valves are both connected with a control system to realize automatic control of air inlet and exhaust of the sealed box body.