Portable chemical gas leakage detection device

Abstract

The utility model discloses a portable chemical gas leakage detection device, which relates to the technical field of gas leakage detection and comprises a main body unit, a cleaning unit, a detection unit and an auxiliary unit, the cleaning unit and the detection unit are arranged in the main body unit, the auxiliary unit is arranged above the main body unit, and the detection unit is positioned on one side of the cleaning unit; the cleaning unit comprises a fixed seat movably arranged in the main body unit, a bearing plate mounted at one end of the fixed seat, a cleaning piece arranged at the end, opposite to the bearing plate, of the fixed seat, a supporting moving piece arranged on the side part of the fixed seat, and an air suction fan mounted on the inner side wall of the main body unit. According to the portable chemical gas leakage detection device, through the arrangement of the cleaning unit and the detection unit, dirt is prevented from being formed on the pipe wall, and normal passing of airflow is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage detection, in particular to a portable chemical gas leakage detection device. Background Art

[0002] During the chemical production process, the required chemical gases and corresponding chemical waste gases will be generated. Both useful chemical gases and chemical waste gases need to be strictly controlled after they are generated to prevent gas leakage from affecting the external environment. What we need is to use pipeline transportation, and some chemical gases also have a certain corrosive effect on pipelines. After long-term use, the pipeline will have leaks caused by corrosion. If they cannot be checked in time, gas leakage or more dangerous accidents may occur.

[0003] After searching the publication (announcement) number: CN114778039A, a portable chemical gas leakage detection device is disclosed, including a handheld body, a detection head, a card detection board, a power switch, and an indicator light. The handheld body is arranged at the rear end of the detection head, and a detection slot is provided on the top surface of the detection head. The card detection board is inserted into the detection slot, the power switch is arranged on the top surface of the handheld body, and the indicator light is arranged on the side of the handheld body. This invention optimizes the setting of chemical gas detection, changes the traditional electronic detection instrument, and improves it into a detection method using a chemical agent film, and the detection result is more accurate. In addition, the chemical agent film can select a card detection board made of different agents according to different gases to be detected. The operation of the device is simple, the reminder method after detection is simple, the structure is compact and simple, and it is more suitable for carrying detection, and it is suitable for promotion and use.

[0004] Although the above scheme utilizes the detection method of chemical agent film to improve the accuracy of the detection results, since the gas itself is doped with other components (such as coal ash, fine particles of coal slag, etc.), impurities are easily adhered to the pipe wall when the gas flows in the casing. Over time, dirt will form on the pipe wall, which is inconvenient to clean and will also affect the normal airflow operation. For this reason, we propose a portable chemical gas leak detection device. Utility Model Content

[0005] The main purpose of the utility model is to provide a portable chemical gas leakage detection device, which solves the problem that due to the gas itself being mixed with other components (such as coal ash, fine particles of coal slag, etc.), impurities are easily adhered to the pipe wall when the gas flows in the casing. Over time, dirt will form on the pipe wall, which is inconvenient to clean and will also affect the normal airflow operation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A portable chemical gas leakage detection device comprises a main unit, a cleaning unit and a detection unit arranged in the main unit, and an auxiliary unit arranged above the main unit, wherein the detection unit is located on one side of the cleaning unit;

[0008] The cleaning unit comprises a fixed seat movably arranged in the main unit, a pressure plate installed at one end of the fixed seat, a cleaning member arranged at the opposite end of the fixed seat and the pressure plate, a supporting movable member arranged at the side of the fixed seat, and an air suction fan installed on the inner side wall of the main unit;

[0009] The detection unit includes a light source emitting structure installed on the top wall of the main unit, a mounting slot opened on the top of the main unit, a paper jam detection plate arranged in the mounting slot, a paper jam detection plate installed in the paper jam detection plate, a detection body installed at the output end of the main unit, and a light source sensing structure installed on the side wall adjacent to the detection body and the paper jam detection plate.

[0010] Preferably, the main unit includes a detection head, an air inlet opened at an input end of the detection head, and an exhaust port opened on a side wall of the detection head.

[0011] Preferably, the main unit also includes a lifting handle installed on the top of the detection head.

[0012] Preferably, the supporting movable part includes a movable groove opened on the inner side wall of the detection head, a connecting plate installed on the side wall of the fixed seat, a connecting seat installed on the opposite end of the connecting plate and the movable fixed seat, a traveling wheel movably installed in the connecting seat and affixed to the bottom wall of the movable groove, and a connecting spring with one end fixedly connected to the connecting seat and the other end fixedly connected to the side wall of the movable groove.

[0013] Preferably, the cleaning unit further comprises a slag collecting box installed at the bottom of the detection machine head, and the slag collecting box is communicated with the interior of the detection machine head.

[0014] Preferably, the cleaning member comprises a connecting rod movably mounted at the opposite end of the fixing seat and the pressure plate, and a cleaning soft brush mounted at the opposite end of the connecting rod and the fixing seat.

[0015] Preferably, the auxiliary unit comprises a sealing plate movably mounted in the mounting groove, a rotating handle mounted on the top of the sealing plate, and an indicator light mounted on the top of the detection body.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, through the cleaning unit and the detection unit that are set, when the chemical gas is inhaled, the suction fan works to suck the chemical gas into the air inlet. At this time, due to the rotation of the suction fan, a thrust relative to the pressure plate is generated, so that the fixed seat drives the supporting movable part to move in the movable groove, and during the movement, the wind force generated by the suction fan will also push the connecting rod to rotate around the fixed seat, so that the cleaning soft brush completes the rotational cleaning of the inner wall of the detection head, avoiding the formation of dirt on the pipe wall and ensuring the normal passage of airflow; when the chemical gas enters the interior of the detection head, when the air contains the gas that needs to be detected, it will react with the pharmaceutical film on the detection cardboard, and quickly cause the pharmaceutical film to react and melt, resulting in a hole, and the light emitted by the light source emitting structure passes through the hole and shines on the photoresistor on the light source sensing structure. When the photoresistor receives the light, the detection body and the photoresistor form a passage, and the indicator light is on at this time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a right side structural schematic diagram of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure I in the middle;

[0022] Figure 5 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0023] In the figure:

[0024] 1. Main unit; 101. Detection head; 102. Lifting handle; 103. Air inlet; 104. Exhaust port;

[0025] 2. Cleaning unit; 201. Fixed seat; 202. Pressure plate; 203. Support moving part; 2031. Connecting plate; 2032. Connecting seat; 2033. Traveling wheel; 2034. Connecting spring; 204. Cleaning part; 2041. Connecting rod; 2042. Cleaning soft brush; 205. Suction fan; 206. Slag collecting box;

[0026] 3. Detection unit; 301. Light source emitting structure; 302. Paper jam detection; 303. Paper jam detection board; 304. Detection body; 305. Light source sensing structure;

[0027] 4. Auxiliary unit; 401. Sealing plate; 402. Rotating handle; 403. Indicator light. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] Example 1

[0030] like Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, a portable chemical gas leakage detection device includes a main unit 1, a cleaning unit 2 and a detection unit 3 arranged in the main unit 1, and an auxiliary unit 4 arranged above the main unit 1, and the detection unit 3 is located on one side of the cleaning unit 2;

[0031] like Figure 5 As shown, the cleaning unit 2 includes a fixed seat 201 movably arranged in the main unit 1, a pressure plate 202 installed at one end of the fixed seat 201, a cleaning member 204 arranged at the opposite end of the fixed seat 201 and the pressure plate 202, a supporting movable member 203 arranged at the side of the fixed seat 201, and an air suction fan 205 installed on the inner side wall of the main unit 1, and the air suction fan 205 can allow external chemical gas to quickly enter the interior of the main unit 1;

[0032] like Figure 3 As shown, the detection unit 3 includes a light source emitting structure 301 installed on the top wall of the main unit 1, a mounting groove opened on the top of the main unit 1, a paper jam detection plate 303 arranged in the mounting groove, a paper jam detection 302 installed in the paper jam detection plate 303, a detection body 304 installed at the output end of the main unit 1, and a light source sensing structure 305 installed on the side wall adjacent to the detection body 304 and the paper jam detection plate 303. The light source sensing structure 305 is provided with a photoresistor, which can strongly sense the light.

[0033] like Figure 1 and Figure 3 As shown, the main unit 1 includes a detection head 101, an air inlet 103 opened at the input end of the detection head 101, and an exhaust port 104 opened on the side wall of the detection head 101. External chemical gas can enter the detection head 101 from the air inlet 103 and finally be discharged from the exhaust port 104.

[0034] like Figure 1 As shown, the main unit 1 also includes a lifting handle 102 installed on the top of the detection head 101. The provision of the lifting handle 102 facilitates the gripping and movement of the entire detection device.

[0035] like Figure 4 As shown, the supporting movable member 203 includes a movable groove opened on the inner wall of the detection head 101, a connecting plate 2031 installed on the side wall of the fixed seat 201, a connecting seat 2032 installed on the connecting plate 2031 and the opposite end of the movable fixed seat 201, a traveling wheel 2033 movably installed in the connecting seat 2032 and in contact with the bottom wall of the movable groove, and a connecting spring 2034 with one end fixedly connected to the connecting seat 2032 and the other end fixedly connected to the side wall of the movable groove. The connecting spring 2034 is arranged so that when the wind force that pushes the fixed seat 201 to move disappears, the entire supporting movable member 203 can be restored to its original position under the elastic force of the connecting spring 2034.

[0036] like Figure 3 As shown, the cleaning member 204 includes a connecting rod 2041 movably mounted at the opposite ends of the fixed seat 201 and the pressure plate 202, and a cleaning soft brush 2042 mounted at the opposite ends of the connecting rod 2041 and the fixed seat 201. When the connecting rod 2041 rotates around the fixed seat 201, the inner wall of the detection head 101 can be cleaned by the cleaning soft brush 2042.

[0037] When the chemical gas is inhaled, the suction fan 205 works to suck the chemical gas into the air inlet 103. At this time, due to the rotation of the suction fan 205, a thrust relative to the pressure plate 202 is generated, so that the fixed seat 201 drives the supporting movable part 203 to move in the movable groove, and during the movement, the wind force generated by the suction fan 205 will also push the connecting rod 2041 to rotate around the fixed seat 201, so that the cleaning soft brush 2042 completes the rotation cleaning of the inner wall of the detection head 101.

[0038] Example 2

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, a portable chemical gas leakage detection device includes a main unit 1, a cleaning unit 2 and a detection unit 3 arranged in the main unit 1, and an auxiliary unit 4 arranged above the main unit 1, and the detection unit 3 is located on one side of the cleaning unit 2;

[0040] like Figure 5As shown, the cleaning unit 2 includes a fixed seat 201 movably arranged in the main unit 1, a pressure plate 202 installed at one end of the fixed seat 201, a cleaning member 204 arranged at the opposite end of the fixed seat 201 and the pressure plate 202, a supporting movable member 203 arranged at the side of the fixed seat 201, and an air suction fan 205 installed on the inner side wall of the main unit 1, and the air suction fan 205 can allow external chemical gas to quickly enter the interior of the main unit 1;

[0041] like Figure 3 As shown, the detection unit 3 includes a light source emitting structure 301 installed on the top wall of the main unit 1, a mounting groove opened on the top of the main unit 1, a paper jam detection plate 303 arranged in the mounting groove, a paper jam detection 302 installed in the paper jam detection plate 303, a detection body 304 installed at the output end of the main unit 1, and a light source sensing structure 305 installed on the side wall adjacent to the detection body 304 and the paper jam detection plate 303. The light source sensing structure 305 is provided with a photoresistor, which can strongly sense the light.

[0042] like Figure 1 and Figure 3 As shown, the main unit 1 includes a detection head 101, an air inlet 103 opened at the input end of the detection head 101, and an exhaust port 104 opened on the side wall of the detection head 101. External chemical gas can enter the detection head 101 from the air inlet 103 and finally be discharged from the exhaust port 104.

[0043] like Figure 1 As shown, the main unit 1 also includes a lifting handle 102 installed on the top of the detection head 101. The provision of the lifting handle 102 facilitates the gripping and movement of the entire detection device.

[0044] like Figure 4 As shown, the supporting movable member 203 includes a movable groove opened on the inner wall of the detection head 101, a connecting plate 2031 installed on the side wall of the fixed seat 201, a connecting seat 2032 installed on the connecting plate 2031 and the opposite end of the movable fixed seat 201, a traveling wheel 2033 movably installed in the connecting seat 2032 and in contact with the bottom wall of the movable groove, and a connecting spring 2034 with one end fixedly connected to the connecting seat 2032 and the other end fixedly connected to the side wall of the movable groove. The connecting spring 2034 is arranged so that when the wind force that pushes the fixed seat 201 to move disappears, the entire supporting movable member 203 can be restored to its original position under the elastic force of the connecting spring 2034.

[0045] like Figure 2 and Figure 3As shown, the cleaning unit 2 also includes a slag box 206 installed at the bottom of the detection head 101, and the slag box 206 is connected to the interior of the detection head 101. The slag box 206 can collect the coal ash, fine particles of coal slag, etc. cleaned from the inner wall of the detection head 101.

[0046] like Figure 3 As shown, the cleaning member 204 includes a connecting rod 2041 movably mounted at the opposite ends of the fixed seat 201 and the pressure plate 202, and a cleaning soft brush 2042 mounted at the opposite ends of the connecting rod 2041 and the fixed seat 201. When the connecting rod 2041 rotates around the fixed seat 201, the inner wall of the detection head 101 can be cleaned by the cleaning soft brush 2042.

[0047] like Figure 1 and Figure 2 As shown, the auxiliary unit 4 includes a sealing plate 401 movably installed in the installation groove, a rotating handle 402 installed on the top of the sealing plate 401, and an indicator light 403 installed on the top of the detection body 304. The setting of the indicator light 403 can intuitively display the detected chemical gas.

[0048] When the chemical gas enters the detection head 101, when the air contains the gas that needs to be detected, it will react with the drug film on the detection cardboard 302, and quickly cause the drug film to react and melt, resulting in a hole. The light emitted by the light source emitting structure 301 passes through the hole and shines on the photoresistor on the light source sensing structure 305. When the photoresistor receives the light, a passage is formed between the detection body 304 and the photoresistor, and the indicator light 403 lights up.

[0049] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable chemical gas leakage detection device, comprising a main unit (1), characterized in that: It also comprises a cleaning unit (2) and a detection unit (3) arranged in the main unit (1), and an auxiliary unit (4) arranged above the main unit (1), wherein the detection unit (3) is located on one side of the cleaning unit (2); The cleaning unit (2) comprises a fixed seat (201) movably arranged in the main body unit (1), a pressure plate (202) installed at one end of the fixed seat (201), a cleaning member (204) arranged at the opposite end of the fixed seat (201) and the pressure plate (202), a supporting movable member (203) arranged at the side of the fixed seat (201), and an air suction fan (205) installed on the inner side wall of the main body unit (1); The detection unit (3) comprises a light source emitting structure (301) installed on the top wall of the main unit (1), a mounting slot provided on the top of the main unit (1), a paper jam detection plate (303) arranged in the mounting slot, a paper jam detection (302) installed in the paper jam detection plate (303), a detection body (304) installed at the output end of the main unit (1), and a light source sensing structure (305) installed on the side wall adjacent to the detection body (304) and the paper jam detection plate (303).

2. A portable chemical gas leakage detection device according to claim 1, characterized in that: The main unit (1) comprises a detection head (101), an air inlet (103) provided at the input end of the detection head (101), and an air outlet (104) provided on the side wall of the detection head (101).

3. A portable chemical gas leakage detection device according to claim 2, characterized in that: The main body unit (1) also includes a lifting handle (102) installed on the top of the detection head (101).

4. A portable chemical gas leakage detection device according to claim 3, characterized in that: The supporting movable member (203) comprises a movable groove provided on the inner side wall of the detection machine head (101), a connecting plate (2031) installed on the side wall of the fixed seat (201), a connecting seat (2032) installed at the opposite end of the connecting plate (2031) and the movable fixed seat (201), a traveling wheel (2033) movably installed in the connecting seat (2032) and in contact with the bottom wall of the movable groove, and a connecting spring (2034) having one end fixedly connected to the connecting seat (2032) and the other end fixedly connected to the side wall of the movable groove.

5. A portable chemical gas leakage detection device according to claim 2, characterized in that: The cleaning unit (2) further comprises a slag collecting box (206) installed at the bottom of the detection machine head (101), and the slag collecting box (206) is connected to the interior of the detection machine head (101).

6. A portable chemical gas leakage detection device according to claim 5, characterized in that: The cleaning member (204) comprises a connecting rod (2041) movably mounted on the opposite ends of the fixing seat (201) and the pressure plate (202), and a cleaning soft brush (2042) mounted on the opposite ends of the connecting rod (2041) and the fixing seat (201).

7. A portable chemical gas leakage detection device according to claim 1, characterized in that: The auxiliary unit (4) comprises a sealing plate (401) movably mounted in the mounting groove, a rotating handle (402) mounted on the top of the sealing plate (401), and an indicator light (403) mounted on the top of the detection body (304).

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