Special gas sampling device

Abstract

The utility model belongs to special gas sampling technical field, concretely speaking is a kind of special gas sampling device, it includes: gas sampler body, be provided with display screen and control key on gas sampler body, and the threaded connection of sampling probe is connected in the connecting pipeline of gas sampler body, and the upper surface of gas sampler body is equipped with first antiskid ring;Sampling probe removes from the connecting pipeline in the process, and the baffle is pushed back to horizontal flat state by elastic sheet, and rubber ring is matched, that is, when sampling head is removed, it can be closed to connecting pipeline, and when gas flows reversely, it is influenced by left-hand slot, and turbulent flow energy consumption is generated, so that reverse air pressure needs to overcome vortex resistance to form continuous flow, makes backflow trigger pressure threshold to promote, to be able to continuously close connecting pipeline in the transportation process, so that the sealing property of gas sampler body whole, avoids sampling gas to lose in the transportation process, to improve the practicality of sampling device.

Description

Technical Field

[0001] This utility model belongs to the field of special gas sampling technology, specifically a special gas sampling device. Background Technology

[0002] A gas sampler is an instrument used to collect gas samples from the atmospheric environment or working environment. In the specialty gas industry, after collecting specialty gases, sampling devices are used to store and transport them. In order to ensure the preservation of the gas during transportation and avoid leakage, a specialty gas sampling device is needed.

[0003] The existing gas sampler includes a sampling probe, connecting pipes, a sampling container, and a sealing connector. After placing the sampler in the area where gas needs to be collected, the sampling probe is inserted into the gas source. The gas is then transferred to the sampling container through the connecting pipe to complete the gas collection. After the collection is completed, the sampling container is sealed, and then the sampling probe is unscrewed from the transmission pipe for cleaning.

[0004] However, existing samplers still have some problems. Traditional check valves require a certain back pressure to close, the sealing effect of the connecting pipe is not good when sampling at low pressure, and the mechanical structure of the valve is prone to wear after long-term use, resulting in minor leakage. Therefore, after sampling, when the sampling probe is unscrewed from the connecting pipe, gas backflow is likely to occur, which leads to the loss of sampled gas during transmission and reduces the practicality of the sampling device. Therefore, a special gas sampling device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a special gas sampling device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a special gas sampling device, comprising: a gas sampler body, the gas sampler body being provided with a display screen and control keys, a sampling probe being internally threadedly connected to a connecting pipe of the gas sampler body, a first anti-slip ring being installed on the upper surface of the gas sampler body, the sampling probe passing through the first anti-slip ring and connecting to the connecting pipe, a reinforcing ring being fixedly connected to the outer surface of the first anti-slip ring, a sealing plug being fixedly connected to one side of the reinforcing ring, the sealing plug being movably connected to the connecting pipe, and a bolt being internally threadedly connected to the reinforcing ring. The gas sampler body has a second anti-slip ring inside the connecting pipe. A baffle is hinged to the inner wall of the connecting pipe. A rubber ring is fixedly connected to the outer side of the baffle. An elastic sheet is fixedly connected to one side of the baffle. One side of the elastic sheet is fixedly connected to the inner wall of the connecting pipe of the gas sampler body. A left-handed groove is opened on the inner wall of the connecting pipe of the gas sampler body. When the gas flows in reverse, it is affected by the left-handed groove, generating turbulence and energy consumption. As a result, the reverse gas pressure must first overcome the eddy resistance to form a continuous flow, which increases the backflow trigger pressure threshold and thus avoids gas leakage.

[0007] Preferably, the gas sampler body is provided with a connecting nut, and the connecting nut is provided with a transmission tube. The transmission tube is connected to the connecting pipe. The sampled gas enters the collection bottle through the sampling probe along the connecting pipe and the transmission tube, thereby performing gas sampling processing.

[0008] Preferably, the gas sampler body has a placement groove, inside which a collection bottle is placed. The placement groove has symmetrically formed limiting grooves, and the limiting grooves are provided with damping pads. The damping pads can increase the friction of the inner wall of the limiting grooves, thereby improving the ability to fix the position of the limiting rod when it is not subjected to external force.

[0009] Preferably, a spring is fixedly connected to one side of the limiting groove, and a limiting rod is fixedly connected to one end of the spring. The limiting rod is in contact with the damping pad, and an arc-shaped plate is fixedly connected to one side of the limiting rod. The limiting rod and the arc-shaped plate are pushed towards the collection bottle by the elastic force of the spring itself, thereby applying external force to fix the collection bottle.

[0010] Preferably, the arc-shaped plate is attached to the outer wall of the collection bottle, a cover plate is hinged to the gas sampler body, and a handle is fixedly connected to the gas sampler body, which makes it easier to move the sampling device when it needs to be moved.

[0011] Preferably, the gas sampler body is provided with an external power cord, which provides the power required for the operation of the gas sampler body, display screen, control keys and sampling probe. The control keys and display screen control the start and stop of the sampling probe. The operation of the gas sampler body is controlled through the display screen and control keys, thereby improving the ease of use of the gas sampler body.

[0012] The advantages of this invention are as follows: During the process of removing the sampling probe from the connecting pipe, the baffle is pushed back to a horizontal position by the elastic sheet. In conjunction with the rubber ring, the connecting pipe can be sealed when the sampling head is not removed. When the gas flows in reverse, it is affected by the left-hand vortex, which generates turbulence and energy consumption. As a result, the reverse gas pressure must first overcome the eddy resistance to form a continuous flow, which increases the backflow trigger pressure threshold. Thus, the connecting pipe can be continuously sealed during transportation, ensuring the overall sealing of the gas sampler body and preventing the loss of sampled gas during transportation, thereby improving the practicality of the sampling device.

[0013] This invention uses a spring to push the limiting rod and the arc-shaped plate towards the surface of the collection bottle, thereby cooperating with the damping pad. This allows collection bottles of different capacities to be directly installed inside the gas sampler body, thus improving the ease of installation of the collection bottle and consequently the ease of use of the gas sampler body. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure; Figure 2 This is a schematic cross-sectional view of the overall structure; Figure 3 This is a schematic diagram of the reinforcement components; Figure 4 This is a schematic diagram of the cross-section of the baffle. Figure 5 This is a schematic diagram of a fixed-cost section.

[0016] In the diagram: 1. Gas sampler body; 2. Display screen; 3. Control key; 4. Sampling probe; 5. First anti-slip ring; 6. Reinforcing ring; 7. Sealing plug; 8. Bolt; 9. Second anti-slip ring; 10. Baffle; 11. Rubber ring; 12. Elastic sheet; 13. Left-hand groove; 14. Connecting nut; 15. Transmission tube; 16. Collection bottle; 17. Placement slot; 18. Limiting slot; 19. Spring; 20. Limiting rod; 21. Arc plate; 22. Cover plate; 23. Handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 As shown, a special gas sampling device includes: a gas sampler body 1, a display screen 2 and control keys 3 on the gas sampler body 1, a sampling probe 4 internally threadedly connected to the connecting pipe of the gas sampler body 1, a first anti-slip ring 5 installed on the upper surface of the gas sampler body 1, the sampling probe 4 passing through the first anti-slip ring 5 and connected to the connecting pipe, a reinforcing ring 6 fixedly connected to the outer surface of the first anti-slip ring 5, a sealing plug 7 fixedly connected to one side of the reinforcing ring 6, the sealing plug 7 being movably connected to the connecting pipe, a bolt 8 internally threadedly connected to the reinforcing ring 6, a second anti-slip ring 9 inside the connecting pipe of the gas sampler body 1, a baffle 10 hinged to the inner wall of the connecting pipe of the gas sampler body 1, a rubber ring 11 fixedly connected to the outer side of the baffle 10, an elastic piece 12 fixedly connected to one side of the baffle 10, one side of the elastic piece 12 fixedly connected to the inner wall of the connecting pipe of the gas sampler body 1, and a left-handed groove 13 opened on the inner wall of the connecting pipe of the gas sampler body 1. Currently, in the specialty gas industry, sampling devices collect specialty gases, which are then stored and transported. To ensure gas preservation during transportation and prevent leakage, a specialty gas sampling device is needed. In actual use, when using the gas sampler body 1, the sampling probe 4 is screwed into the connecting pipe and inserted into the first anti-slip ring 5. Then, the sampling probe 4 is rotated to connect with the connecting pipe. Simultaneously, one end of the sampling probe 4 applies a downward pushing force to the three sets of baffles 10, causing them to rotate downward around the hinge axis, thus opening the connecting pipe and compressing the elastic sheet 12. At the same time, the outer wall of the sampling probe 4 is in contact with the second anti-slip ring 9. Then, the bolt 8 is used to connect the opening of the reinforcing ring 6, and rotating the bolt 8 reduces the loop between the reinforcing ring 6 and the first anti-slip ring 5, thereby cooperating with the second anti-slip ring 9, improving the tightness of the connection between the sampling probe 4 and the connecting pipe, and preventing gas leakage during gas collection. Then, the gas sampler body 1 and sampling probe 4 are controlled via the display screen 2 and control keys 3. The sampling probe 4 is regulated to draw external gas into the collection bottle 16 through the connecting pipe and transmission pipe 15, thus sampling and collecting the gas. After the gas collection is completed, the bolt 8 is unscrewed, reducing the pressure on the sampling probe 4. Then, the sampling probe 4 is unscrewed, and the pressure on the baffle 10 disappears. The elasticity of the elastic piece 12 pushes the baffle 10 back to a horizontal position, causing the three sets of rubber rings 11 to stick together, thus sealing the connecting pipe even before the sampling probe 4 is removed. At the same time, when the gas flows in reverse, it is affected by the left-hand vortex 13, generating turbulence and energy consumption. Therefore, the reverse air pressure must first overcome the eddy resistance to form a continuous flow, increasing the backflow trigger pressure threshold. In conjunction with the baffle 10, elastic piece 12, and rubber rings 11, gas leakage can be avoided. Thus, the connecting pipe can be continuously sealed during transportation, ensuring the overall sealing of the gas sampler body 1 and preventing the loss of sampled gas during transportation, thereby improving the practicality of the sampling device.

[0019] Please see Figure 1-5As shown, the gas sampler body 1 is provided with a connecting nut 14, and a transmission pipe 15 is provided inside the connecting nut 14. The transmission pipe 15 is connected to the connecting pipe. The gas sampler body 1 is provided with a placement groove 17, and a collection bottle 16 is placed inside the placement groove 17. A limit groove 18 is symmetrically provided inside the placement groove 17. A damping pad is provided inside the limit groove 18. A spring 19 is fixedly connected to one side of the limit groove 18. A limit rod 20 is fixedly connected to one end of the spring 19. The limit rod 20 is in contact with the damping pad. An arc plate 21 is fixedly connected to one side of the limit rod 20. The arc plate 21 is in contact with the outer wall of the collection bottle 16. A cover plate 22 is hinged to the gas sampler body 1. A handle 23 is fixedly connected to the gas sampler body 1. An external power cord is provided on the gas sampler body 1. The external power cord is used to provide the power required for operation of the gas sampler body 1, the display screen 2, the control key 3 and the sampling probe 4. The control key 3 and the display screen 2 control the start and stop of the sampling probe 4. Different collection bottles 16 are needed to adapt to different gas concentrations when sampling. For short-term sampling of high-concentration gases, small-capacity collection bottles 16 are required, while for long-term cumulative sampling of high-concentration gases, large-capacity collection bottles 16 are required. Therefore, when sampling different gases, the required collection bottle 16 is placed inside the placement groove 17, and its bottom is used to push the arc-shaped plates 21 on both sides outward, thereby pushing the limiting rod 20 into the limiting groove 18 and compressing the spring 19. When the collection bottle 16 is fully inside the placement groove 17, the limiting rod 20 is engaged. The pressure on rod 20 is static, so the spring 19 pushes the arc plate 21 towards the collection bottle 16, increasing the pressure on the collection bottle 16. In conjunction with the damping pad, the collection bottle 16 can be fixed inside the placement slot 17. This improves the ease of installation of the collection bottle 16 when the gas sampler body 1 is used, thereby improving the ease of use of the gas sampler body 1. It also ensures the stability of the collection bottle 16 during the transportation of the sampling device. In conjunction with the cover plate 22, it prevents the collection bottle 16 from falling off during transportation.

[0020] Working principle: Based on the required gas concentration, the corresponding collection bottle 16 is inserted into the placement slot 17. The spring 19 pushes the arc-shaped plate 21 towards the collection bottle 16, increasing the pressure on the collection bottle 16. This, combined with the damping pad, secures the collection bottle 16 inside the placement slot 17. The sampling probe 4 is screwed into the connecting pipe and inserted into the first anti-slip ring 5. The sampling probe 4 is then rotated to connect with the connecting pipe. Simultaneously, one end of the sampling probe 4 applies a downward pushing force to the three sets of baffles 10, causing them to rotate downwards around the hinge axis, thus opening the connecting pipe and compressing the elastic plate 12. Finally, bolts 8 are used to connect the opening of the reinforcing ring 6, and rotating bolts 8... The reinforcing ring 6 and the first anti-slip ring 5 are reduced in size to cooperate with the second anti-slip ring 9, thereby improving the tightness of the connection between the sampling probe 4 and the connecting pipe. Then, the gas sampler body 1 and the sampling probe 4 are adjusted through the display screen 2 and the control key 3. The sampled gas enters the collection bottle 16 through the sampling probe 4 along the connecting pipe and the transmission pipe 15, thereby performing gas sampling processing. After the gas collection is completed, the bolt 8 is unscrewed, and then the sampling probe 4 is unscrewed. The pressure on the baffle 10 is removed, and the baffle 10 is pushed back to the horizontal position by the elastic force of the elastic piece 12, so that the three sets of rubber rings 11 are in contact, thereby keeping the three sets of baffles 10 in a closed state, preventing the sampled gas from being lost during transportation, thereby improving the practicality of the sampling device.

[0021] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to common embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A special gas sampling device, characterized in that: include: A gas sampler body (1) is provided with a display screen (2) and control keys (3). A sampling probe (4) is threadedly connected to the connecting pipe of the gas sampler body (1). A first anti-slip ring (5) is installed on the upper surface of the gas sampler body (1). The sampling probe (4) passes through the first anti-slip ring (5) and is connected to the connecting pipe. A reinforcing ring (6) is fixedly connected to the outer surface of the first anti-slip ring (5). A sealing plug (7) is fixedly connected to one side of the reinforcing ring (6). The sealing plug (7) is movably connected to the connecting pipe. The reinforcing ring (6) is internally threaded with bolts (8), and the gas sampler body (1) is provided with a second anti-slip ring (9) inside the connecting pipe. The gas sampler body (1) is hinged with a baffle (10) on the inner wall of the connecting pipe. A rubber ring (11) is fixedly connected to the outer side of the baffle (10). An elastic piece (12) is fixedly connected to one side of the baffle (10). One side of the elastic piece (12) is fixedly connected to the inner wall of the connecting pipe of the gas sampler body (1). The gas sampler body (1) is provided with a left-handed groove (13) on the inner wall of the connecting pipe.

2. The special gas sampling device according to claim 1, characterized in that: The gas sampler body (1) is provided with a connecting nut (14), and a transmission pipe (15) is provided inside the connecting nut (14), which is connected to the connecting pipe.

3. The special gas sampling device according to claim 1, characterized in that: The gas sampler body (1) has a placement slot (17) inside which a collection bottle (16) is placed. A limiting slot (18) is symmetrically opened inside the placement slot (17), and a damping pad is provided inside the limiting slot (18).

4. A special gas sampling device according to claim 3, characterized in that: A spring (19) is fixedly connected to one side of the limiting groove (18), and a limiting rod (20) is fixedly connected to one end of the spring (19). The limiting rod (20) is in contact with the damping pad, and an arc plate (21) is fixedly connected to one side of the limiting rod (20).

5. A special gas sampling device according to claim 4, characterized in that: The arc-shaped plate (21) is attached to the outer wall of the collection bottle (16), and a cover plate (22) is hinged to the gas sampler body (1). A handle (23) is fixedly connected to the gas sampler body (1).

6. A special gas sampling device according to claim 1, characterized in that: The gas sampler body (1) is provided with an external power cord, which is used to provide the power required for operation of the gas sampler body (1), display screen (2), control key (3) and sampling probe (4). The control key (3) and display screen (2) control the start and stop of the sampling probe (4).

Images