Harmful gas detection device for environment detection

Abstract

The utility model relates to the technical field of environment detection, and discloses a harmful gas detection device for environment detection, which comprises a sampling cylinder and a detection cylinder, the gas inlet end of the sampling cylinder is communicated with a gas inlet pipe, the detection cylinder is communicated with a connecting pipe, the connecting pipe is communicated with the sampling cylinder, the gas inlet pipe is provided with a first one-way valve, and the first one-way valve is provided with a second one-way valve. And a second one-way valve is arranged on the connecting pipe. A first pull rod is pulled outwards through a first pull handle, to-be-detected gas can be pumped into a sampling barrel through a gas inlet pipe to be stored, then a worker can carry a device collecting the to-be-detected gas to a safety zone, a first piston is pushed back through the first pull handle after the device arrives, and the to-be-detected gas is pressed into a detection barrel through a connecting pipe; the gas detector is started to detect the gas, the contact time of the worker and the harmful gas environment is greatly reduced in the detection process, the detection precision is ensured, and meanwhile, the safety protection for the worker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental detection, in particular to a harmful gas detection device for environmental detection. Background Art

[0002] Harmful gases refer to gases that have an adverse effect on the health of humans or animals, or gases that have no effect on the health of humans or animals but make them feel uncomfortable and affect their comfort. In order to control the impact of toxic and harmful gases on the health of workers and take effective measures to control the hazards of toxic gases, it is necessary to first detect and analyze the composition, properties, and quantity of toxic and harmful gases in the air of the workplace and those emitted into the atmosphere. Based on the analysis results of the gas detector, targeted measures can be taken to effectively control environmental pollution.

[0003] A Chinese patent provides a harmful gas detection device for environmental monitoring, with publication number CN213749712U, which includes a front shell, a rear shell electrochemical sensor, an alarm and a bracket. The front shell is arranged on the rear shell, a gasket is provided on the front of the front shell, four grooves are provided on the side edge of the front shell, an electrochemical sensor is provided under the rear shell, a controller is provided inside the rear shell, a power rod is provided above the rear shell, a right-angle connecting plate is provided on the power rod, a connecting plate is provided on the rear end face of the rear shell, and three through holes are provided in the triangle of the connecting plate, a bracket is provided under the electrochemical sensor, and a tripod base is provided under the bracket. The tripod base is movably connected to the lower connecting rod through a first hinge, and the lower connecting rod is movably connected to the upper connecting rod through a second hinge.

[0004] Although the above-mentioned device has the effects of accurate detection results and safe operation, when using the device to detect gas, the workers still need to operate in a harmful gas environment, which still poses certain hidden dangers to the safety of the workers and cannot ensure that the workers can operate safely. Therefore, it is necessary to provide a harmful gas detection device for environmental detection. Utility Model Content

[0005] The purpose of the utility model is to provide a harmful gas detection device for environmental detection, so as to solve the problem that the existing device still has safety hazards when detecting gas.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a harmful gas detection device for environmental detection, comprising a sampling cylinder and a detection cylinder, the air inlet end of the sampling cylinder is connected to an air inlet pipe, the detection cylinder is connected to a connecting pipe, the connecting pipe is connected to the sampling cylinder, a first one-way valve is provided on the air inlet pipe, and a second one-way valve is provided on the connecting pipe; a first piston is slidably connected in the sampling cylinder, a first pull rod is fixedly provided on one side of the first piston, the end of the first pull rod away from the first piston slides through the sampling cylinder and is fixedly connected to a first pull handle, the first pull rod is sleeved with a first spring fixedly arranged between the first piston and the sampling cylinder; a second piston is slidably connected in the detection cylinder, a second pull rod is fixedly provided at the bottom of the second piston, the bottom of the second pull rod slides through the detection cylinder and is fixedly connected to the second pull handle, and the second pull rod is sleeved with a second spring fixedly arranged between the detection cylinder and the second pull handle.

[0007] Preferably, the first one-way valve and the second one-way valve are installed in opposite directions.

[0008] Preferably, a gas detector is fixedly mounted on the detection cylinder, and a display screen is mounted on the gas detector.

[0009] Preferably, a first indicator light and a second indicator light are respectively provided below the display screen, and the first indicator light and the second indicator light are both fixedly provided on the gas detector.

[0010] Preferably, one end of the gas detector is fixedly connected to a detection head, and the detection end of the detection head is connected to the detection cylinder.

[0011] Preferably, an exhaust pipe is connected to the detection cylinder, and a sealing cover is threadedly connected to the exhaust port of the exhaust pipe.

[0012] Preferably, a handle is fixedly provided at the bottom of the sampling cylinder, a reinforcement rod is fixedly connected between the handle and the detection cylinder, an anti-slip sleeve is provided on the handle, and a base is fixedly provided at the bottom of the handle.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) The harmful gas detection device for environmental detection, by pulling out the first pull rod through the first pull handle, allows the gas to be detected to be drawn into the sampling tube for storage through the air inlet pipe. The staff can then carry the device that collects the gas to be detected to a safe area. After arriving, the staff can push back the first piston through the first pull handle, and the gas to be detected is pressed into the detection tube through the connecting tube. The gas detector can be started to detect the gas. The detection process greatly reduces the contact time between the staff and the harmful gas environment, ensures the detection accuracy while improving the safety protection of the staff.

[0015] 2) The harmful gas detection device for environmental detection, through the setting of the first one-way valve and the second one-way valve, prevents the collected gas from leaking under the action of the first one-way valve. The setting of the second one-way valve can prevent the gas from flowing into the detection cylinder without manual operation. The setting of the first spring and the second spring can provide a boosting effect when the first piston and the second piston move, so as to achieve the purpose of saving effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a harmful gas detection device for environmental detection in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the sampling tube in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the detection tube in the embodiment of the utility model;

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the detection tube in the embodiment of the present utility model.

[0020] In the figure: 1. Sampling cylinder; 2. Air inlet pipe; 3. Detection cylinder; 4. Gas detector; 5. First piston; 6. First pull rod; 7. First handle; 8. First spring; 9. Connecting pipe; 10. First one-way valve; 11. Second one-way valve; 12. Display screen; 13. First indicator light; 14. Second indicator light; 15. Detection head; 16. Second piston; 17. Second pull rod; 18. Second handle; 19. Second spring; 20. Exhaust pipe; 21. Sealing cover; 22. Handle; 23. Anti-slip cover; 24. Bottom support; 25. Reinforcement rod. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Combine Figures 1-4 A harmful gas detection device for environmental detection includes a sampling cylinder 1 and a detection cylinder 3. The air inlet end of the sampling cylinder 1 is connected to an air inlet pipe 2, and the detection cylinder 3 is connected to a connecting pipe 9. The connecting pipe 9 is connected to the sampling cylinder 1. A first one-way valve 10 is provided on the air inlet pipe 2, and a second one-way valve 11 is provided on the connecting pipe 9; the installation directions of the first one-way valve 10 and the second one-way valve 11 are opposite.

[0023] See Figure 2-Figure 4 , it is further obtained that a first piston 5 is slidably connected in the sampling cylinder 1, a first pull rod 6 is fixedly provided on one side of the first piston 5, the end of the first pull rod 6 away from the first piston 5 slides through the sampling cylinder 1 and is fixedly connected to the first handle 7, and the first pull rod 6 is sleeved with a first spring 8 fixedly arranged between the first piston 5 and the sampling cylinder 1; a second piston 16 is slidably connected in the detection cylinder 3, a second pull rod 17 is fixedly provided at the bottom of the second piston 16, the bottom of the second pull rod 17 slides through the detection cylinder 3 and is fixedly connected to the second handle 18, and the second pull rod 17 is sleeved with a second spring 19 fixedly arranged between the detection cylinder 3 and the second handle 18.

[0024] Specifically, by setting the first one-way valve 10 and the second one-way valve 11, the collected gas will not leak under the action of the first one-way valve 10. The setting of the second one-way valve 11 can prevent the gas from flowing into the detection cylinder 3 without manual operation. The setting of the first spring 8 and the second spring 19 can provide a boosting effect when the first piston 5 and the second piston 16 move, so as to achieve the purpose of saving effort.

[0025] See Figure 3 and Figure 4 , it is further obtained that a gas detector 4 is fixedly provided on the detection cylinder 3, a display screen 12 is provided on the gas detector 4, and a first indicator light 13 and a second indicator light 14 are respectively provided below the display screen 12, the first indicator light 13 and the second indicator light 14 are both fixedly provided on the gas detector 4, one end of the gas detector 4 is fixedly connected with a detection head 15, the detection end of the detection head 15 is connected with the detection cylinder 3, an exhaust pipe 20 is connected to the detection cylinder 3, the exhaust port of the exhaust pipe 20 is threadedly connected with a sealing cover 21, a handle 22 is fixedly provided at the bottom of the sampling cylinder 1, a reinforcement rod 25 is fixedly connected between the handle 22 and the detection cylinder 3, an anti-slip sleeve 23 is provided on the handle 22, and a bottom support 24 is fixedly provided at the bottom of the handle 22.

[0026] Specifically, the first pull rod 6 is pulled outward by the first pull handle 7, so that the gas to be detected can be drawn into the sampling tube 1 through the air intake pipe 2 for storage. Then the staff can carry the device that collects the gas to be detected to a safe area. After arriving, the first piston 5 is pushed back by the first pull handle 7, and the gas to be detected is pressed into the detection tube 3 through the connecting tube 9. The gas detector 4 is started to detect the gas. The detection process greatly reduces the contact time of the staff with the harmful gas environment, ensures the detection accuracy while improving the safety protection of the staff.

[0027] During actual operation, the staff holds the anti-slip cover 23 on the handle 22, and then takes the device to an environment where the gas to be detected is present. Thereafter, the staff pulls the first pull rod 6 outward through the first pull handle 7, causing the first piston 5 to slide in the sampling cylinder 1. A pressure difference is generated in the sampling cylinder 1, so that the gas to be detected can be drawn into the sampling cylinder 1 through the air inlet pipe 2 for storage. Under the action of the first one-way valve 10, the collected gas will not leak. The setting of the second one-way valve 11 can prevent the gas from flowing into the detection cylinder 3 without manual operation. Then the staff can carry the device that collects the gas to be detected to a safe area, and after arriving, pass The first pull rod 6 is pushed back through the first pull handle 7, so that the first piston 5 is pushed back. The setting of the first spring 8 can provide an assisting effect for the first piston 5 when it is pushed back. The gas in the sampling cylinder 1 can be pressed into the detection cylinder 3 through the connecting tube 9. The gas detector 4 is started so that the detection head 15 can detect the gas in the detection cylinder 3. The gas detector 4 detects and analyzes the data and displays it on the display screen 12. When the concentration of the gas to be measured is lower than the specified concentration, the gas detector 4 controls the first indicator light 13 to light up green. When the concentration of the gas to be measured is higher than or equal to the specified concentration, the gas detector 4 controls the second indicator light 14 to light up red to warn the staff.

[0028] After the gas detection is completed, rotate and remove the sealing cover 21, push the second handle 18 upward so that the second pull rod 17 drives the second piston 16 to slide upward in the detection cylinder 3, so that the gas in the detection cylinder 3 can be discharged through the exhaust pipe 20, and then use the sealing cover 21 again to seal the exhaust pipe 20, and then you can start a new round of gas detection.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A harmful gas detection device for environmental detection, comprising a sampling cylinder (1) and a detection cylinder (3), characterized in that: The air inlet end of the sampling cylinder (1) is connected to an air inlet pipe (2), the detection cylinder (3) is connected to a connecting pipe (9), the connecting pipe (9) is connected to the sampling cylinder (1), the air inlet pipe (2) is provided with a first one-way valve (10), and the connecting pipe (9) is provided with a second one-way valve (11); A first piston (5) is slidably connected in the sampling cylinder (1), a first pull rod (6) is fixedly provided on one side of the first piston (5), an end of the first pull rod (6) away from the first piston (5) slides through the sampling cylinder (1) and is fixedly connected to a first pull handle (7), and a first spring (8) is sleeved on the first pull rod (6) and fixedly provided between the first piston (5) and the sampling cylinder (1); A second piston (16) is slidably connected inside the detection cylinder (3), a second pull rod (17) is fixedly provided at the bottom of the second piston (16), the bottom of the second pull rod (17) slides through the detection cylinder (3) and is fixedly connected to a second pull handle (18), and a second spring (19) is sleeved on the second pull rod (17) and fixedly provided between the detection cylinder (3) and the second pull handle (18).

2. A harmful gas detection device for environmental monitoring according to claim 1, characterized in that: The first one-way valve (10) and the second one-way valve (11) are installed in opposite directions.

3. The harmful gas detection device for environmental monitoring according to claim 1, characterized in that: A gas detector (4) is fixedly mounted on the detection cylinder (3), and a display screen (12) is mounted on the gas detector (4).

4. The harmful gas detection device for environmental monitoring according to claim 3, characterized in that: A first indicator light (13) and a second indicator light (14) are respectively provided below the display screen (12); the first indicator light (13) and the second indicator light (14) are both fixedly provided on the gas detector (4).

5. The harmful gas detection device for environmental monitoring according to claim 3, characterized in that: One end of the gas detector (4) is fixedly connected to a detection head (15), and the detection end of the detection head (15) is communicated with the detection cylinder (3).

6. The harmful gas detection device for environmental monitoring according to claim 1, characterized in that: An exhaust pipe (20) is connected to the detection cylinder (3), and a sealing cover (21) is threadedly connected to the exhaust port of the exhaust pipe (20).

7. The harmful gas detection device for environmental monitoring according to claim 1, characterized in that: A handle (22) is fixedly provided at the bottom of the sampling cylinder (1), a reinforcement rod (25) is fixedly connected between the handle (22) and the detection cylinder (3), an anti-slip sleeve (23) is sleeved on the handle (22), and a bottom support (24) is fixedly provided at the bottom of the handle (22).

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