Handheld gas detection analyzer

Abstract

The utility model discloses a handheld gas detection analyzer, which relates to the technical field of gas detection and comprises gas detection equipment, a container is mounted in the gas detection equipment, an infrared emitter is fixedly mounted on one side wall in the container, an infrared detector is fixedly mounted on the other side wall in the container, and the infrared detector is fixedly mounted on the other side wall in the container. And a cleaning structure is arranged at the upper end of the gas detection equipment. According to the gas detection equipment, entering gas can be screened, foreign matters are prevented from entering the gas detection equipment along with the gas, the detection precision is further ensured, meanwhile, the filter screen can be cleaned, a large number of foreign matters are prevented from being accumulated on the filter screen, and the gas can be ensured to normally circulate in the gas inlet pipe; the gas detector is simple in structure and convenient to use, gas can be continuously detected conveniently, the filter screen can be restored to the original position so that the filter screen can continuously filter the gas, and the practicability of the gas detector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a handheld gas detection analyzer. Background Art

[0002] Gas detection equipment is a process analysis instrument that measures gas composition. Due to the great differences in the gases being analyzed and the variety of analysis principles, there are many types of gas detection equipment. Commonly used ones include thermal conductivity gas detection equipment, electrochemical gas detection equipment, and infrared absorption analyzers.

[0003] For example, Chinese patent publication No. CN219533089U discloses a handheld air detection and gas detection device, which includes a gas detection device body and a handle part. The handle part includes a fixed handle and a movable handle. A fixed handle is fixedly installed on one side of the gas detection device body, a receiving groove is opened through the middle of the movable handle, the fixed handle is movably installed inside the receiving groove, and a limiting component is movably installed on one side of the movable handle close to the fixed handle.

[0004] In the prior art, when a gas detection device absorbs gas, it will also suck in the gas and foreign matter floating around it. When too much foreign matter enters the gas detection device, it will not only affect the accuracy of gas detection, but the long-term accumulation of foreign matter will also cause blockage to the air inlet pipe, resulting in the gas being unable to enter the gas detection device again, thereby making it impossible to detect the gas. Therefore, a handheld gas detection analyzer is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the gas detection equipment will suck in the gas and foreign matter floating around it when absorbing the gas. When too many foreign matter enters the gas detection equipment, it will not only affect the accuracy of gas detection, but the long-term accumulation of foreign matter will also cause blockage to the air intake pipe, resulting in the gas being unable to enter the gas detection equipment again, thereby making it impossible to detect the gas. A handheld gas detection analyzer is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a handheld gas detection analyzer, including a gas detection device, the gas detection device including a shell, a container is installed inside the shell, an infrared emitter is fixedly installed on one side wall of the interior of the container, an infrared detector is fixedly installed on the other side wall of the interior of the container, a micro air suction pump is fixedly installed inside the shell, an exhaust pipe is installed through the lower end of the container, the air intake and exhaust ports of the micro air suction pump are fixedly installed with connecting pipes, a cleaning structure is provided at the upper end of the shell, the cleaning structure includes an air intake pipe, a filter is provided inside the air intake pipe, a circular ring seat is slidably installed on the outer wall of the air intake pipe, two groups of vertical holes are opened through the outer wall of the air intake pipe, sliding blocks are slidably installed inside the two groups of vertical holes, and push rods are fixedly installed on the upper ends of the two groups of sliding blocks.

[0007] Preferably, support springs are fixedly mounted on the inner top ends of the two groups of vertical holes, and the lower ends of the two groups of support springs are respectively fixed to the upper ends of the two groups of sliding blocks.

[0008] Preferably, a handle is fixedly mounted on the lower end of the shell.

[0009] Preferably, one end of the two groups of sliding blocks are located inside the air inlet pipe, the upper ends of the two groups of push rods are fixed to the lower end of the filter screen, and the lower end of the air inlet pipe is connected to the upper end of the shell.

[0010] Preferably, a display screen is fixedly mounted on the front end of the shell, the other end of the exhaust pipe passes through the outside of the shell, and one end of one set of the connecting pipes passes through the shell and is fixed to the lower end of the intake pipe.

[0011] Preferably, the inner wall of the circular ring seat is in contact with the outer wall of the air inlet pipe, and one end of the two groups of sliding blocks are fixed to the inner wall of the circular ring seat.

[0012] Preferably, the infrared detector is electrically connected to the display screen, and the other end of the other group of connecting tubes is connected to the upper end of the container.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by providing a cleaning structure and a filter, the incoming gas can be screened to prevent foreign matter from entering the interior of the container along with the gas, thereby ensuring the detection accuracy. At the same time, with the cooperation of the annular seat and the two sets of sliding blocks, the annular seat can drive the two sets of sliding blocks to move, and cooperate with the two sets of push rods, so that the two sets of push rods push the filter fixed thereto to move upward, and then the filter can be pushed out from the inside of the air inlet pipe, so that the filter can be cleaned to prevent a large amount of foreign matter from accumulating on the filter, ensuring that the gas can circulate normally inside the air inlet pipe, and conveniently continuing to detect the gas.

[0015] 2. In the utility model, two groups of supporting springs are provided. Under the elastic force of the two groups of supporting springs, the two groups of sliding blocks can be pushed to move, and the filter screen can be restored to its original position by cooperating with the two groups of push rods, so that the filter screen can continue to filter the gas, thereby increasing the practicality of the gas detector. At the same time, the setting of the circular ring seat can seal the two groups of vertical holes to prevent the gas from being discharged from the two groups of vertical holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a handheld gas detection analyzer is proposed for the utility model;

[0017] Figure 2 The utility model provides a structural schematic diagram of a gas detection device and a cleaning structure of a handheld gas detection analyzer;

[0018] Figure 3 The utility model provides a schematic diagram of a cleaning structure of an assembly structure of a handheld gas detection analyzer;

[0019] Figure 4 A partial stereoscopic diagram of a cleaning structure of a handheld gas detection analyzer proposed by the utility model;

[0020] Figure 5 The utility model provides a gas partial half-section structure schematic diagram of a handheld gas detection analyzer.

[0021] Legend: 1. Gas detection equipment; 10. Housing; 11. Container; 12. Infrared emitter; 13. Infrared detector; 14. Display screen; 15. Micro suction pump; 16. Exhaust pipe; 17. Connecting pipe; 2. Cleaning structure; 21. Inlet pipe; 22. Filter; 23. Ring seat; 24. Vertical hole; 25. Sliding block; 26. Support spring; 27. Push rod; 3. Handle. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] like Figure 1 As shown in Figure 5, the utility model provides a handheld gas detection analyzer, including a gas detection device 1, the gas detection device 1 includes a shell 10, a container 11 is installed inside the shell 10, an infrared emitter 12 is fixedly installed on one side wall of the inside of the container 11, an infrared detector 13 is fixedly installed on the other side wall of the inside of the container 11, a micro suction pump 15 is fixedly installed inside the shell 10, an exhaust pipe 16 is installed through the lower end of the container 11, and a connecting pipe 17 is fixedly installed at the suction port and the exhaust port of the micro suction pump 15, and a cleaning structure 2 is arranged at the upper end of the shell 10, the cleaning structure 2 includes an air inlet pipe 21, a filter screen 22 is arranged inside the air inlet pipe 21, a circular ring seat 23 is slidably installed on the outer wall of the air inlet pipe 21, and two sets of vertical holes 24 are opened through the outer wall of the air inlet pipe 21. Sliding blocks 25 are slidably installed inside the two groups of vertical holes 24, and push rods 27 are fixedly installed on the upper ends of the two groups of sliding blocks 25. One ends of the two groups of sliding blocks 25 are located inside the air intake pipe 21, and the upper ends of the two groups of push rods 27 are fixed to the lower end of the filter 22. The lower end of the air intake pipe 21 is connected to the upper end of the outer shell 10, and the inner wall of the annular seat 23 contacts the outer wall of the air intake pipe 21. One ends of the two groups of sliding blocks 25 are fixed to the inner wall of the annular seat 23. A display screen 14 is fixedly installed at the front end of the outer shell 10, and the other end of the exhaust pipe 16 passes through the outside of the outer shell 10. One end of one group of connecting pipes 17 passes through the outer shell 10 and is fixed to the lower end of the air intake pipe 21. The infrared detector 13 is electrically connected to the display screen 14, and the other end of the other group of connecting pipes 17 is connected to the upper end of the container 11.

[0026] The following is a detailed description of the specific settings and functions of this embodiment. The setting of the filter 22 can filter the incoming gas to prevent foreign matter from entering the interior of the gas detection device 1 along with the gas, thereby ensuring the detection accuracy. At the same time, by holding the annular seat 23 tightly and moving it upward, the annular seat 23 will drive the two sets of sliding blocks 25 fixed thereto to move upward together, so that the two sets of sliding blocks 25 slide upward inside the two sets of vertical holes 24 respectively, and squeeze the two sets of supporting springs 26. At the same time, the two sets of sliding blocks 25 respectively drive the push rods 27 fixed thereto to move upward, so that the two sets of push rods 27 both push the filter 22 to move upward inside the intake pipe 21 until the filter 22 is pushed out from the interior of the intake pipe 21, thereby being able to clean the filter 22 and prevent a large amount of foreign matter from accumulating on the filter 22. , ensuring that the gas can circulate normally inside the intake pipe 21, so that the gas can continue to be detected. Among them, by starting the micro suction pump 15, the micro suction pump 15 generates suction. Under the connection and cooperation between one set of connecting pipes 17 and the intake pipe 21, the suction sucks away the external gas through one set of connecting pipes 17 and the intake pipe 21, and then introduces it into the inside of another set of connecting pipes 17 from the exhaust port of the micro suction pump 15, and flows into the inside of the container 11. At this time, the infrared light emitted by the infrared transmitter 12 will pass through the gas in the container 11 and refract onto the infrared detector 13, and then discharge the gas inside the container 11 through the exhaust pipe 16. The infrared detector 13 determines the concentration of carbon dioxide in the gas by the radiation intensity of the infrared light, and transmits it to the display screen 14 for the staff to understand.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, support springs 26 are fixedly installed at the inner top ends of the two groups of vertical holes 24, and the lower ends of the two groups of support springs 26 are respectively fixed to the upper ends of the two groups of sliding blocks 25, and a handle 3 is fixedly installed at the lower end of the gas detection device 1.

[0029] The effect achieved by the entire embodiment is that, under the elastic force of the two groups of support springs 26, the two groups of sliding blocks 25 can be pushed to move, and the two groups of sliding blocks 25 respectively push the push rods 27 fixed thereto to move downward together, so that the two groups of push rods 27 drive the filter screen 22 to move downward, and when the two groups of sliding blocks 25 respectively move to the inner bottom ends of the two groups of vertical holes 24, the filter screen 22 moves to its original position, thereby restoring the filter screen 22 to its original position so that the filter screen 22 can continue to filter the gas, thereby increasing the practicality of the gas detector. At the same time, the setting of the annular seat 23 can seal the two groups of vertical holes 24 to prevent gas from being discharged from the two groups of vertical holes 24. Secondly, the setting of the handle 3 can facilitate the staff to hold the gas detection device 1 to detect gas.

[0030] The method of use and working principle of the device: First, when using it, the staff grips the handle 3 and puts the gas detection device 1 in a suitable position, and then starts the micro suction pump 15. The micro suction pump 15 generates suction. Under the connection and cooperation between one set of connecting pipes 17 and the air inlet pipe 21, the suction sucks away the external gas through one set of connecting pipes 17 and the air inlet pipe 21, and the carbon dioxide in the air is sucked into the interior of the air inlet pipe 21. Under the filtration of the filter 22, the incoming carbon dioxide can be screened to prevent foreign matter from entering the interior of the container 11 along with the gas. At this time, the gas enters the micro suction pump through the air inlet pipe 21 and another set of connecting pipes 17. 15, and then introduced from the exhaust port of the micro suction pump 15 into the inside of another group of connecting pipes 17, and flows into the inside of the container 11. The infrared light emitted by the infrared emitter 12 will pass through the gas in the container 11 and refract onto the infrared detector 13. The infrared detector 13 determines the concentration of carbon dioxide in the gas by the radiation intensity of the infrared light. Finally, the concentration of the measured gas can be known based on the fact that the absorption of infrared light is proportional to the concentration of the absorbing substance. The test result is transmitted to the display screen 14 through the infrared detector 13, so that the staff can understand that the gas detection device 1 realizes the concentration detection of carbon dioxide by utilizing the Lambert-Beer law.

[0031] Then, by tightly gripping the circular ring seat 23 and moving it upward, the circular ring seat 23 will drive the two sets of sliding blocks 25 fixed thereto to move upward together, so that the two sets of sliding blocks 25 slide upward inside the two sets of vertical holes 24 respectively and squeeze the two sets of supporting springs 26. At the same time, the two sets of sliding blocks 25 respectively drive the push rods 27 fixed thereto to move upward, so that the two sets of push rods 27 both push the filter screen 22 to move upward inside the air intake pipe 21 until the filter screen 22 is pushed out from the inside of the air intake pipe 21, so that the filter screen 22 can be cleaned. Finally, the tightly gripped circular ring seat 23 is released, and the elastic force of the two sets of supporting springs 26 can push the two sets of sliding blocks 25 to move, and the two sets of sliding blocks 25 respectively push the push rods 27 fixed thereto to move downward together, so that the two sets of push rods 27 drive the filter screen 22 to move downward. When the two sets of sliding blocks 25 move to the inner bottom ends of the two sets of vertical holes 24 respectively, the filter screen 22 moves to its original position, so that the filter screen 22 can be restored.

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A handheld gas detection analyzer, comprising a gas detection device (1), characterized in that: The gas detection device (1) comprises a housing (10), a container (11) is installed inside the housing (10), an infrared emitter (12) is fixedly installed on one side wall inside the container (11), an infrared detector (13) is fixedly installed on the other side wall inside the container (11), a micro suction pump (15) is fixedly installed inside the housing (10), an exhaust pipe (16) is installed through the lower end of the container (11), and the suction port and exhaust port of the micro suction pump (15) are both fixedly installed with A connecting pipe (17), a cleaning structure (2) is arranged at the upper end of the shell (10), the cleaning structure (2) comprises an air intake pipe (21), a filter screen (22) is arranged inside the air intake pipe (21), a circular ring seat (23) is slidably mounted on the outer wall of the air intake pipe (21), two groups of vertical holes (24) are penetrated through the outer wall of the air intake pipe (21), sliding blocks (25) are slidably mounted inside the two groups of vertical holes (24), and push rods (27) are fixedly mounted on the upper ends of the two groups of sliding blocks (25).

2. A handheld gas detection analyzer according to claim 1, characterized in that: Support springs (26) are fixedly installed at the inner top ends of the two groups of vertical holes (24), and the lower ends of the two groups of support springs (26) are respectively fixed to the upper ends of the two groups of sliding blocks (25).

3. A handheld gas detection analyzer according to claim 1, characterized in that: A handle (3) is fixedly mounted on the lower end of the housing (10).

4. A handheld gas detection analyzer according to claim 1, characterized in that: One end of the two sets of sliding blocks (25) is located inside the air inlet pipe (21), the upper ends of the two sets of push rods (27) are fixed to the lower end of the filter screen (22), and the lower end of the air inlet pipe (21) is connected to the upper end of the shell (10).

5. A handheld gas detection analyzer according to claim 1, characterized in that: A display screen (14) is fixedly mounted on the front end of the housing (10), the other end of the exhaust pipe (16) passes through the outside of the housing (10), and one end of a group of connecting pipes (17) passes through the housing (10) and is fixed to the lower end of the intake pipe (21).

6. A handheld gas detection analyzer according to claim 4, characterized in that: The inner wall of the annular seat (23) contacts the outer wall of the air inlet pipe (21), and one end of the two groups of sliding blocks (25) are fixed to the inner wall of the annular seat (23).

7. A handheld gas detection analyzer according to claim 5, characterized in that: The infrared detector (13) is electrically connected to the display screen (14), and the other end of the other group of connecting tubes (17) is connected to the upper end of the container (11).

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