A gas sampling device for gas detection

Abstract

The utility model discloses a gas sampling device for gas detection, comprising: a protective shell, the protective shell is used to protect the gas sampling container; a sampling tank, the sampling tank is used to directly contain and store the sampled gas; a sealing cover, the sealing cover is used to seal the sampling port of the sampling tank; the gas sampling device also includes a drying mechanism; the drying mechanism includes a circuit board, the upper surface of the circuit board is fixedly connected to an electrical component, and the outer surface of the electrical component is fixedly connected to a heating resistance wire. The mechanism relates to the technical field of gas detection. The utility model solves the problem that the existing gas sampling device cannot effectively clean the residual gas in the container by setting a drying mechanism, filling the sampling tank with water and emptying it in the sampling area, and using a controller to control the heating resistance wire to heat the sampling tank to evaporate the residual liquid, thereby ensuring the accuracy of gas detection and achieving the purpose of making the final gas detection result relatively accurate.

Description

Technical Field

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

[0002] With the continuous development of social industry, urban air pollution has gradually worsened, bringing many health hazards to residents. Nowadays, environmental protection has gradually been taken seriously, especially in terms of air quality. In order to reduce the harm caused by air to residents, it is necessary to detect and find solutions. However, most gas detection devices are large in size, and some of the detection and sampling locations are very remote, making it inconvenient for users to move them to the detection location. Therefore, we need a gas sampling device.

[0003] However, in the prior art, when the traditional gas sampling device is working, there is residual air in the container used for gas sampling. The air at non-sampling locations will affect the accuracy of gas detection, thereby causing inaccurate results of the final gas detection. Therefore, the existing gas sampling device for gas detection has the problem of being unable to effectively clean the residual gas in the container. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a gas sampling device for gas detection, comprising:

[0005] A protective shell, the protective shell is used to protect the gas sampling container;

[0006] A sampling tank, the sampling tank is used to directly contain and store the sampled gas, and the sampling tank is arranged inside the protective shell;

[0007] A sealing cover, the sealing cover is used to seal the sampling port of the sampling tank, and the inner wall of the sealing cover is threadedly connected to the outer wall of the protective shell;

[0008] The gas sampling device also includes a controller, a drying mechanism and a gas outlet mechanism;

[0009] The drying mechanism comprises a circuit board, an upper surface of the circuit board is fixedly connected with an electrical component, and an outer surface of the electrical component is fixedly connected with a heating resistance wire.

[0010] As a preferred embodiment, the lower surface of the circuit board is fixedly connected to the bottom of the inner wall of the protective shell, the upper surface of the electrical component contacts the bottom surface of the sampling tank, and the outer wall of the heating resistance wire contacts the outer wall of the sampling tank.

[0011] As a preferred embodiment, a sealing rubber ring is fixedly connected to the top of the inner wall of the protective shell, a connecting column is fixedly connected to the bottom of the inner wall of the protective shell, the outer wall of the controller is fixedly connected to the outer wall of the protective shell, a sealing ring is fixedly connected to the inner wall of the sealing cover, and a first rubber ring is fixedly connected to the inner wall of the sealing cover.

[0012] As a preferred embodiment, the inner wall of the sealing rubber ring is fixedly connected to the outer wall of the sampling tank, the middle position of the connecting column passes through the lower surface of the circuit board and extends to its upper surface, the top surface of the connecting column is fixedly connected to the bottom surface of the sampling tank, the outer wall of the sealing ring is in contact with the inner wall of the sealing rubber ring, and the lower surface of the first rubber ring is in contact with the top surface of the sampling tank.

[0013] As a preferred embodiment, the air outlet mechanism includes an air outlet pipe, the outer wall of the air outlet pipe is fixedly connected to a sleeve, a ball valve is arranged inside the air outlet pipe, an end of the sleeve away from the protective shell is evenly provided with an arc-shaped threaded plate, and the outer wall of the arc-shaped threaded plate is fixedly connected to one end of the sleeve, and the outer wall of the sleeve is slidably connected to a threaded fixing ring.

[0014] As a preferred embodiment, one end of the air outlet pipe is fixedly connected to the outer wall of the sampling tank, the other end of the air outlet pipe is fixedly connected to a second rubber ring, the inner wall of the sleeve is in contact with the outer wall of the ball valve, and the outer wall of the arc-shaped threaded plate is threadedly connected to the inner wall of the threaded fixing ring.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model solves the problem that the existing gas sampling device cannot effectively clean the residual gas in the container by setting a drying mechanism, filling the sampling tank with water and emptying it in the sampling area, and then controlling the heating resistance wire in the drying mechanism to evaporate the residual liquid in the sampling tank through a controller, thereby ensuring the accuracy of gas detection and achieving the purpose of making the final gas detection result relatively accurate.

[0017] 2. The utility model ensures the air tightness of the process of gas entering the detection device from the sampling device by setting up the air outlet mechanism through the ball valve, the arc-shaped threaded plate, the threaded fixing ring and the second rubber ring, thereby ensuring the accuracy of the detection result.

[0018] 3. The utility model provides a protective shell and a sealing rubber ring in cooperation with the first rubber ring to ensure the air tightness of the sampling port on the top of the sampling tank while preventing the sampling tank from being directly bumped by external factors, thereby achieving the purpose of protecting the sampling tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0022] Figure 4 It is a partial exploded view of the cross-section of the utility model;

[0023] Figure 5 It is a structural schematic diagram of B of the utility model.

[0024] In the figure: 1, protective shell; 11, sealing rubber ring; 12, connecting column; 2, sampling tank; 3, sealing cover; 31, sealing ring; 32, first rubber ring; 4, controller; 5, drying mechanism; 51, circuit board; 52, electrical component; 53, heating resistor wire; 6, air outlet mechanism; 61, air outlet pipe; 611, second rubber ring; 62, sleeve; 63, ball valve; 64, arc threaded plate; 65, threaded fixing ring. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0026] Example:

[0027] See also Figure 1 - Figure 5 The utility model provides a technical solution: a gas sampling device for gas detection, comprising:

[0028] A protective shell 1, the protective shell 1 is used to protect a gas sampling container;

[0029] A sampling tank 2, the sampling tank 2 is used to directly contain and store the sampled gas, and the sampling tank 2 is arranged inside the protective shell 1;

[0030] A sealing cover 3, the sealing cover 3 is used to seal the sampling port of the sampling tank 2, and the inner wall of the sealing cover 3 is threadedly connected to the outer wall of the protective shell 1;

[0031] The gas sampling device also includes a controller 4, a drying mechanism 5 and a gas outlet mechanism 6;

[0032] The drying mechanism 5 comprises a circuit board 51 , an electrical component 52 is fixedly connected to the upper surface of the circuit board 51 , and a heating resistor 53 is fixedly connected to the outer surface of the electrical component 52 .

[0033] The lower surface of the circuit board 51 is fixedly connected to the bottom of the inner wall of the protective shell 1 , the upper surface of the electrical component 52 contacts the bottom surface of the sampling tank 2 , and the outer wall of the heating resistance wire 53 contacts the outer wall of the sampling tank 2 .

[0034] A sealing rubber ring 11 is fixedly connected to the top of the inner wall of the protective shell 1, a connecting column 12 is fixedly connected to the bottom of the inner wall of the protective shell 1, the outer wall of the controller 4 is fixedly connected to the outer wall of the protective shell 1, a sealing ring 31 is fixedly connected to the inner wall of the sealing cover 3, and a first rubber ring 32 is fixedly connected to the inner wall of the sealing cover 3.

[0035] The inner wall of the sealing rubber ring 11 is fixedly connected to the outer wall of the sampling tank 2, the middle position of the connecting column 12 passes through the lower surface of the circuit board 51 and extends to its upper surface, the top surface of the connecting column 12 is fixedly connected to the bottom surface of the sampling tank 2, the outer wall of the sealing ring 31 contacts the inner wall of the sealing rubber ring 11, and the lower surface of the first rubber ring 32 contacts the top surface of the sampling tank 2.

[0036] The air outlet mechanism 6 includes an air outlet pipe 61, the outer wall of which is fixedly connected to a sleeve 62, a ball valve 63 is arranged inside the air outlet pipe 61, an arc-shaped threaded plate 64 is evenly arranged on one end of the sleeve 62 away from the protective shell 1, and the outer wall of the arc-shaped threaded plate 64 is fixedly connected to one end of the sleeve 62, and the outer wall of the sleeve 62 is slidably connected to a threaded fixing ring 65.

[0037] One end of the air outlet pipe 61 is fixedly connected to the outer wall of the sampling tank 2 , and the other end of the air outlet pipe 61 is fixedly connected to a second rubber ring 611 . The inner wall of the sleeve 62 contacts the outer wall of the ball valve 63 , and the outer wall of the arc-shaped threaded plate 64 is threadedly connected to the inner wall of the threaded fixing ring 65 .

[0038] When in use, fill the sampling tank 2 with clean water and then bring it to the sampling area. Through the threaded connection, unscrew the sealing cover 3, pour out the clean water from the upper opening of the sampling tank 2, and completely eliminate the influence of residual gas. The drying mechanism 5 and the controller 4 are connected through a wire. The controller 4 controls the electrical components 52 on the circuit board 51 to energize and operate. After the power is turned on, the temperature of the heating resistor 53 rises, and the heating resistor 53 evenly heats the sampling tank 2, so that the residual droplets in the sampling tank 2 evaporate quickly, eliminating the influence of clean water. After the sampling tank 2 cools naturally, the sampling is completed, and then the sealing cover 3 is tightened, the sealing ring 31 contacts and seals with the sealing rubber ring 11, and the first rubber ring 32 contacts and seals with the top surface of the sampling tank 2 for further sealing, and the protective shell 1 It is used to protect the sampling tank 2 and the drying mechanism 5. The protective shell 1 and the sampling tank 2 are fixedly connected by the connecting column 12, and the sealing rubber ring 11 plays a further fixing role. By setting the air outlet mechanism 6, after the sampling is completed and sent back to the laboratory, the connecting pipe on the gas detection device is inserted between the sleeve 62 and the arc-shaped threaded plate 64, so that it contacts the second rubber ring 611 fixed on the air outlet pipe 61. Under the action of the threaded connection, tighten the threaded fixing ring 65 to make the threaded fixing ring 65 and the arc-shaped threaded plate 64 overlap. At this time, the elastic part arc-shaped threaded plate 64 gathers and fixes the connecting pipe of the detection device, and opens the ball valve 63 to make the interior of the sampling tank 2 communicate with the interior of the gas detection device through the air outlet pipe 61 and the connecting pipe.

[0039] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A gas sampling device for gas detection, comprising: A protective shell (1), the protective shell (1) being used to protect a gas sampling container; A sampling tank (2), the sampling tank (2) is used to directly contain and store the sampled gas, and the sampling tank (2) is arranged inside the protective shell (1); A sealing cover (3), the sealing cover (3) being used to seal the sampling port of the sampling tank (2), the inner wall of the sealing cover (3) being threadedly connected to the outer wall of the protective shell (1); Characterized in that the gas sampling device further comprises a controller (4), a drying mechanism (5) and a gas outlet mechanism (6); The drying mechanism (5) comprises a circuit board (51), an electrical component (52) is fixedly connected to the upper surface of the circuit board (51), and a heating resistance wire (53) is fixedly connected to the outer surface of the electrical component (52).

2. A gas sampling device for gas detection according to claim 1, characterized in that: The lower surface of the circuit board (51) is fixedly connected to the bottom of the inner wall of the protective shell (1), the upper surface of the electrical component (52) is in contact with the bottom surface of the sampling tank (2), and the outer wall of the heating resistance wire (53) is in contact with the outer wall of the sampling tank (2).

3. A gas sampling device for gas detection according to claim 2, characterized in that: A sealing rubber ring (11) is fixedly connected to the top of the inner wall of the protective shell (1), a connecting column (12) is fixedly connected to the bottom of the inner wall of the protective shell (1), an outer wall of the controller (4) is fixedly connected to the outer wall of the protective shell (1), a sealing ring (31) is fixedly connected to the inner wall of the sealing cover (3), and a first rubber ring (32) is fixedly connected to the inner wall of the sealing cover (3).

4. A gas sampling device for gas detection according to claim 3, characterized in that: The inner wall of the sealing rubber ring (11) is fixedly connected to the outer wall of the sampling tank (2); the middle position of the connecting column (12) passes through the lower surface of the circuit board (51) and extends to its upper surface; the top surface of the connecting column (12) is fixedly connected to the bottom surface of the sampling tank (2); the outer wall of the sealing ring (31) is in contact with the inner wall of the sealing rubber ring (11); and the lower surface of the first rubber ring (32) is in contact with the top surface of the sampling tank (2).

5. A gas sampling device for gas detection according to claim 1, characterized in that: The air outlet mechanism (6) comprises an air outlet pipe (61), the outer wall of the air outlet pipe (61) is fixedly connected to a sleeve (62), a ball valve (63) is arranged inside the air outlet pipe (61), an arc-shaped threaded plate (64) is evenly arranged at one end of the sleeve (62) away from the protective shell (1), and the outer wall of the arc-shaped threaded plate (64) is fixedly connected to one end of the sleeve (62), and the outer wall of the sleeve (62) is slidably connected to a threaded fixing ring (65).

6. A gas sampling device for gas detection according to claim 5, characterized in that: One end of the air outlet pipe (61) is fixedly connected to the outer wall of the sampling tank (2), and the other end of the air outlet pipe (61) is fixedly connected to a second rubber ring (611). The inner wall of the sleeve (62) contacts the outer wall of the ball valve (63), and the outer wall of the arc-shaped threaded plate (64) is threadedly connected to the inner wall of the threaded fixing ring (65).

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