Portable gas collecting device

Abstract

The utility model discloses a portable gas collecting device which comprises a collecting tank, a connecting pipe is installed in the middle of the collecting tank and communicated with the atmosphere, a collecting hole is formed in the connecting pipe and communicated with the collecting tank, and a pipe connector can be connected into a gas reaction tank needing to be sampled through a push block and a spring which are arranged in the collecting tank. The sampling tank can be conveniently communicated with the gas reaction tank through the plugging assembly, the gas can enter the sampling tank under the pushing of the gas pressure in the gas reaction tank, the pushing block is pushed to move and the spring is compressed through the pushing of the gas pressure in the sampling tank so as to sample the gas, and the sampling hole is plugged through the sealing assembly after the sampling is finished. The gas sampling device is simple in structure, convenient to mount and dismount and convenient to carry before sampling or after sampling, the use convenience is improved, the gas tightness after sampling can be guaranteed through the arranged sealing plug, and the leakage problem of a gas sample collected in the collecting tank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas collection, and specifically relates to a portable gas collection device. Background Art

[0002] Gas sampling devices are primarily used to collect gas samples from gas reaction tanks for analysis and monitoring. By collecting gas samples from gas reaction tanks, composition analysis can be performed to determine the content and proportion of various components in the gas. This is very helpful for understanding the reaction conditions, product purity, and emission composition of chemical processes. At the same time, harmful gaseous pollutants such as volatile organic compounds (VOCs), gas fumes, and toxic gases may be generated in gas reaction tanks. Gas sampling devices can be used to collect samples of the above gases and conduct analysis and testing.

[0003] After searching, a gas sampling device with patent number CN220960817U was found, which includes a push rod, which is arranged on the end of the tank body away from the connecting port, the push rod passes through the tank body, and a push plate is provided at the end of the push rod located inside the tank body. Although the push plate can be conveniently moved toward the connecting port by the gripping end, the gas sample inside the tank body is gradually discharged from the connecting port at this time. However, in the process of carrying after collecting the gas, the more gas collected in the tank body, the longer the push rod extends out of the tank body, which is inconvenient to carry. For this reason, a portable gas collection device is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a portable gas collection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a portable gas collection device, comprising a collection tank, a connecting pipe installed in the middle of the collection tank and connected to the atmosphere, a collection hole formed on the connecting pipe and connected to the collection tank, a pipe joint coaxial with the connecting pipe installed on the collection tank, and a sealing component installed in the connecting pipe for opening or closing the collection hole;

[0006] A push block is provided inside the collection tank, and the push block is sleeved on the connecting pipe. A spring is provided between the inner top of the collection tank and the push block.

[0007] Preferably, the sealing assembly includes an internal threaded ring installed in the connecting pipe, a screw is threaded onto the internal threaded ring, a sealing plug is fixedly installed at the lower end of the screw, and a fixing rod is fixedly installed at the upper end of the screw.

[0008] Preferably, the sealing plug includes a sealing block, a sealing plate and a connecting column, the lower end of the connecting column is connected to the sealing block, the sealing block is used to seal the collection hole, the upper end of the connecting column is connected to the sealing plate, the sealing plate is used to seal the upper end of the connecting pipe, a connecting channel connected to the collection hole is formed between the sealing block and the sealing plate, and the screw is fixedly installed on the upper end of the sealing plate.

[0009] Preferably, the inner diameter of the pipe joint is larger than the inner diameter of the connecting pipe, so that there is a gap between the sealing block and the inner wall of the pipe joint.

[0010] Preferably, the outer diameter of the fixing rod is larger than the outer diameter of the screw rod, so as to limit the moving distance of the sealing plug.

[0011] Compared with the prior art, the beneficial effects of the present invention are: a portable gas collection device, which can connect the pipe joint to the gas reaction tank to be sampled through the push block and spring arranged inside the collection tank, and can conveniently connect the collection tank with the gas reaction tank through the sealing component, and enter the collection tank under the push of the air pressure in the gas reaction tank, and push the push block to move and compress the spring through the collection tank to sample the gas. After the collection is completed, the sampling hole is sealed by the sealing component. The present invention has a simple structure and is easy to install and disassemble. It is also easy to carry before or after sampling, which increases the convenience of use. The sealing plug set can ensure the airtightness after sampling and avoid leakage of the gas sample collected in the collection tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the internal structure of the collection tank of the present invention.

[0014] In the figure: 1-collection tank, 2-connecting pipe, 3-collection hole, 4-pipe joint, 5-inner thread ring, 6-screw, 7-fixing rod, 8-sealing block, 9-sealing plate, 10-connecting column, 11-connecting channel, 12-push block, 13-spring. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-2The utility model provides a technical solution: a portable gas collection device, comprising a collection tank 1, a connecting pipe 2 is installed in the middle of the collection tank 1 and is connected to the atmosphere, a collection hole 3 is opened on the connecting pipe 2 and is connected to the collection tank 1, a pipe joint 4 coaxial with the connecting pipe 2 is installed on the collection tank 1, and a blocking component for opening or closing the collection hole 3 is installed in the connecting pipe 2;

[0017] A push block 12 is provided inside the collecting tank 1 and is sleeved on the connecting pipe 2 . A spring 13 is provided between the top end of the collecting tank 1 and the push block.

[0018] A sealing ring is provided between the push block 12 and the collection tank 1 to increase the sealing performance.

[0019] The plugging assembly includes an internal threaded ring 5 installed in the connecting pipe 2, a screw 6 is threaded on the internal threaded ring 5, a sealing plug is fixedly installed at the lower end of the screw 6, and a fixing rod 7 is fixedly installed at the upper end of the screw 6.

[0020] The sealing plug includes a sealing block 8, a sealing plate 9 and a connecting column 10. The lower end of the connecting column 10 is connected to the sealing block 8, and the sealing block 8 is used to seal the collection hole 3. The upper end of the connecting column 10 is connected to the sealing plate 9, and the sealing plate 9 is used to seal the upper end of the connecting pipe 2. A connecting channel 11 connected to the collection hole 3 is formed between the sealing block 8 and the sealing plate 9, and the screw 6 is fixedly installed on the upper end of the sealing plate 9.

[0021] When the fixing rod 7 is in contact with the upper end of the internal threaded ring 5, the sealing block 8 is separated from the connecting pipe and reaches the outside. The sealing plate 9 is located at the upper end of the collection hole 3, sealing the upper end of the connecting pipe 2, allowing the gas to enter the collection tank 1 through the collection hole 3.

[0022] The inner diameter of the pipe joint 4 is larger than the inner diameter of the connecting pipe 2 , so that there is a gap between the sealing block 8 and the inner wall of the pipe joint 4 .

[0023] The outer diameter of the fixing rod 7 is greater than the outer diameter of the screw rod 6 and is used to limit the moving distance of the sealing plug.

[0024] Working principle: When the present invention is used, the connecting head 4 is threadedly connected to the pipeline with a valve of the gas reaction tank, and then the valve is opened. Then the fixing rod 7 is twisted, and the fixing rod 7 drives the screw 6 to be threaded, and the screw 6 drives the sealing plug to move outward until the fixing rod 7 is in contact with the internal threaded ring 5. At this time, the sealing block 8 is separated from the inside of the connecting pipe 2, connecting the collection tank 1 with the outside, and the air pressure in the gas reaction tank causes the gas in the gas reaction tank to enter the connecting channel 11 and enter the collection tank 1 through the collection hole 3. The gas entering the collection tank 1 pushes the push block 12 to move, and the spring 13 is compressed. When a certain volume of gas is collected, the fixing rod 7 is twisted in the opposite direction, and the fixing rod 7 drives the screw 6 to be threaded with the internal threaded ring 5. The screw 6 drives the sealing plug to move toward the inside of the connecting pipe 2, and the collection hole is sealed through the sealing block 8. At this time, the sealing plate 9 is in contact with the internal threaded ring 5.

[0025] When the gas in the collection tank 1 needs to be taken out, the fixing rod 7 is turned, and the fixing rod 7 drives the screw 6 to be screwed, and the screw 6 drives the sealing plug to move outward until the fixing rod 7 is in contact with the internal threaded ring 5. At this time, the sealing block 8 is separated from the inside of the connecting tube 2, and the elastic force of the spring 13 pushes the push block 12 to move toward the collection hole 3, pushing the gas in the collection tank 1 to be discharged from the collection hole 3.

[0026] 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 these 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 portable gas collection device, characterized in that: The collecting tank (1) comprises a connecting pipe (2) installed in the middle of the collecting tank (1) and connected to the atmosphere, a collecting hole (3) is provided on the connecting pipe (2) and connected to the collecting tank (1), a pipe joint (4) coaxial with the connecting pipe (2) is installed on the collecting tank (1), and a blocking component for opening or closing the collecting hole (3) is installed in the connecting pipe (2); A push block (12) is provided inside the collection tank (1), and the push block (12) is sleeved on the connecting pipe (2). A spring (13) is provided between the top end of the interior of the collection tank (1) and the push block.

2. The portable gas collection device according to claim 1, characterized in that: The plugging assembly comprises an internal threaded ring (5) installed in the connecting pipe (2), a screw (6) is threadedly connected to the internal threaded ring (5), a sealing plug is fixedly installed at the lower end of the screw (6), and a fixing rod (7) is fixedly installed at the upper end of the screw (6).

3. The portable gas collection device according to claim 2, characterized in that: The sealing plug comprises a sealing block (8), a sealing plate (9) and a connecting column (10); the lower end of the connecting column (10) is connected to the sealing block (8); the sealing block (8) is used to seal the collection hole (3); the upper end of the connecting column (10) is connected to the sealing plate (9); the sealing plate (9) is used to seal the upper end of the connecting pipe (2); a connecting channel (11) communicating with the collection hole (3) is formed between the sealing block (8) and the sealing plate (9); and the screw (6) is fixedly mounted on the upper end of the sealing plate (6).

4. The portable gas collection device according to claim 3, characterized in that: The inner diameter of the pipe joint (4) is larger than the inner diameter of the connecting pipe (2), so that there is a gap between the sealing block (8) and the inner wall of the pipe joint (4).

5. The portable gas collection device according to claim 2, characterized in that: The outer diameter of the fixing rod (7) is greater than the outer diameter of the screw rod (6) and is used to limit the moving distance of the sealing plug.

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