CN219084512U - A gas sampling device for environmental detection - Google Patents

Abstract

The utility model discloses a gas sampling device for environment detection, which belongs to the technical field of gas environment detection and comprises a bottle body, wherein a limiting ring is fixedly connected to the upper surface of the bottle body, a fixing ring is fixedly connected to the upper surface of the bottle body, a second control tube is fixedly connected to the outer surface of the fixing ring, a sealing ring is connected to the inner wall of the bottle body in a sliding manner, the upper surface of the sealing ring is connected with the bottom surface of the limiting ring in a sliding manner, the top of the bottle body is sealed through the sealing ring, gas in the bottle body is diffused into the fixing ring after being emptied through the second control tube, and then the gas is inserted into the inner side of the fixing ring through a probe and prevented from generating convection with external gas, so that the gas is mixed, and the problem that the internal gas and the external gas are easy to generate convection when a top cover is opened in a collection bottle of the existing gas collection device is solved, and the detection result is affected is solved.

Description

A gas sampling device for environmental detection

technical field

The utility model relates to the field of gas environment detection, in particular to a gas sampling device for environment detection.

Background technique

When gas is discharged from factories such as chemical industry, the gas needs to be treated to a specified standard before it can be discharged. Therefore, usually the inspector needs to collect gas samples through the gas sampling device, and then go to the laboratory to detect and analyze the gas.

The probe needs to be inserted into the collection bottle during gas detection, but when the top cover of the existing collection bottle is opened, it is easy to cause convection between the internal gas and the external air, so that the external gas and the sample are mixed, thereby affecting the detection result, so , those skilled in the art provide a gas sampling device for environmental detection to solve the problems raised in the above background technology.

Utility model content

The purpose of this utility model is to provide a gas sampling device for environmental detection, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A gas sampling device for environmental detection, comprising a bottle body, the upper surface of the bottle body is fixedly connected with a restricting ring, the upper surface of the bottle body is fixedly connected with a fixed ring, and the outer surface of the fixed ring is fixedly connected with a second Two control tubes, the inner wall of the bottle body is slidably connected with a sealing ring, the upper surface of the sealing ring is slidably connected with the bottom surface of the restricting ring, and a rubber plug is arranged above the sealing ring.

As a further solution of the utility model: the outer surface of the rubber plug is fixedly connected with a threaded sleeve, the outer surface of the threaded sleeve is threaded with a positioning cylinder, and the inner wall of the positioning cylinder is threaded with the outer surface of the fixing ring.

As a further solution of the present invention: the inside of the positioning cylinder is fixedly connected with a cross plate, the lower surface of the cross plate is slidably connected with an inner cylinder, and the bottom of the inner cylinder is fixedly connected with the upper surface of the sealing ring.

As a further solution of the utility model: the outer surface of the inner cylinder is sleeved with a spring, the top of the spring is fixedly connected with a limiting plate, the bottom of the spring is fixedly connected with the upper surface of the sealing ring, and the limiting plate The outer surface of the limiting plate is fixedly connected with the fixed ring, and the inner wall of the limiting plate is slidably connected with the outer surface of the inner cylinder.

As a further solution of the utility model: a seal block is slidably connected to the inside of the inner cylinder, a threaded rod is rotatably connected to the bottom of the seal block, the outer surface of the threaded rod is rotatably connected to the bottle body, and the threaded rod The bottom is fixedly connected with a rotating sleeve.

As a further solution of the utility model: the outer surface of the threaded rod is threadedly connected with a sealing plate, the outer surface of the sealing plate is slidingly connected with the inner wall of the bottle, and the bottom of the bottle is provided with a control hole.

As a further solution of the present invention: the upper surface of the bottle body is fixedly connected with a first control tube, and the outer surface of the bottle body is fixedly connected with a handle.

Compared with the prior art, the beneficial effects of the utility model are:

The gas sampling device for environmental detection uses a sealing ring to seal the top of the bottle body, so that after the gas inside the fixing ring is evacuated through the second control tube, the gas in the bottle body is diffused into the fixing ring, and then penetrates through the probe. The rubber stopper is inserted into the inner side of the fixed ring to avoid convection with the external air, resulting in gas mixing, thereby solving the problem that when the top cover of the collection bottle of the existing gas collection device is opened, the internal gas and the external air are easily convected, and the external gas and the external air are easily convected. Mixing of samples can affect the test results.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of a gas sampling device for environmental detection;

Fig. 2 is a sectional view of a side view of a bottle body in a gas sampling device for environmental detection;

Fig. 3 is a cross-sectional view of a front view of a threaded sleeve in a gas sampling device for environmental detection;

Fig. 4 is an enlarged schematic diagram of the structure at A in Fig. 2 in a gas sampling device for environmental detection.

In the figure: 1, bottle body; 2, threaded rod; 3, sealing plate; 4, first control tube; 5, control hole; 6, rotating sleeve; 7, restricting ring; 8, sealing ring; 9, spring; 10 , limiting plate; 11, fixed ring; 12, inner cylinder; 13, cross plate; 14, positioning cylinder; 15, thread sleeve; 16, rubber plug; 17, handle; 18, second control tube; 19, sealing block .

Detailed ways

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention through specific situations.

Please refer to Figures 1 to 4. In an embodiment of the present utility model, a gas sampling device for environmental detection includes a bottle body 1, the upper surface of the bottle body 1 is fixedly connected with a restricting ring 7, and the upper surface of the bottle body 1 is fixedly connected with a The fixed ring 11, the outer surface of the fixed ring 11 is fixedly connected with the second control tube 18, the inner wall of the bottle body 1 is slidably connected with the sealing ring 8, the upper surface of the sealing ring 8 is slidably connected with the bottom surface of the restricting ring 7, the sealing ring 8 A rubber stopper 16 is arranged above.

The outer surface of the rubber plug 16 is fixedly connected with a threaded sleeve 15, the outer surface of the threaded sleeve 15 is threaded with a positioning cylinder 14, the inner wall of the positioning cylinder 14 is threaded with the outer surface of the fixed ring 11, and the rubber plug 16 is installed through the threaded sleeve 15 At the top of the positioning cylinder 14, while the top of the space formed by the fixed ring 11 and the positioning cylinder 14 is closed, it is convenient to replace the rubber stopper 16, and it is convenient to test the sample multiple times. The inside of the positioning cylinder 14 is fixedly connected with a cross plate 13 , the lower surface of the cross plate 13 is slidably connected with the inner cylinder 12, the bottom of the inner cylinder 12 is fixedly connected with the upper surface of the sealing ring 8, and the positioning cylinder 14 is conveniently pressed down on the inner cylinder 12 through the cross plate 13, so that the inner cylinder 12 Drive the sealing ring 8 to move downwards, open the top of the bottle body 1, so that the gas moves to the inner side of the fixed ring 11, the outer surface of the inner cylinder 12 is sleeved with a spring 9, and the top of the spring 9 is fixedly connected with a limiting plate 10, the spring The bottom of 9 is fixedly connected to the upper surface of sealing ring 8, the outer surface of limiting plate 10 is fixedly connected to fixing ring 11, the inner wall of limiting plate 10 is slidingly connected to the outer surface of inner cylinder 12, and the shape of inner cylinder 12 is T-shaped. The restricting plate 10 is located between the cross plate 13 and the sealing ring 8 , so that the sealing ring 8 is pulled upward by the spring 9 and contacts the lower surface of the restricting ring 7 to seal the bottle body 1 .

The inside of the inner cylinder 12 is slidingly connected with a sealing block 19, the bottom of the sealing block 19 is rotatably connected with a threaded rod 2, the outer surface of the threaded rod 2 is rotatably connected with the bottle body 1, and the bottom of the threaded rod 2 is fixedly connected with a rotating sleeve 6, and the thread A sealing ring is arranged between the rod 2 and the bottle body 1 to improve the sealing performance between the threaded rod 2 and the bottle body 1, and the sealing block 19 is inserted into the inner side of the inner cylinder 12, so that the inner cylinder 12 moves up and down while the inner cylinder 12 is sealed inside, thereby sealing the top of the bottle body 1, the outer surface of the threaded rod 2 is threadedly connected with a sealing plate 3, the outer surface of the sealing plate 3 is slidingly connected with the inner wall of the bottle body 1, and the bottom of the bottle body 1 is provided with The control hole 5 and the rotating sleeve 6 are made of breathable material, which is convenient for the gas to be discharged through the control hole 5. The threaded rod 2 drives the sealing plate 3 to move downwards, and the gas is sucked into the bottle body 1, and at the same time, the sealing plate 3 moves to the maximum. When it is down, the control hole 5 is closed, the upper surface of the bottle body 1 is fixedly connected with the first control tube 4, and the outer surface of the bottle body 1 is fixedly connected with a handle 17. The shape of the handle 17 is U-shaped, which is convenient for bottle adjustment. body 1, a valve is installed inside the first control tube 4, and the valve is closed after collecting and receiving, and a one-way valve is set inside the second control tube 18 to collect the gas, and the second control tube 18 makes the gas flow in the fixed ring 11 internal discharge.

The working principle of the utility model is as follows: when in use, firstly, the threaded rod 2 is rotated by the rotating sleeve 6, so that the threaded rod 2 can pass through the inner wall of the bottle body 1 to limit the rotation of the sealing plate 3, so that the sealing plate 3 moves downward, so that the sealing The space above the plate 3 increases, and the gas is sucked into the bottle body 1 through the first control tube 4, so as to collect the gas into the bottle body 1. At this time, the spring 9 drives the sealing ring 8 to move upward through the bottle body 1. The sealing ring 8 is in contact with the lower surface of the restricting ring 7, while the inner cylinder 12 is in contact with the sealing block 19 to seal the top of the bottle body 1, and then through a vacuum pump or a device for extracting gas, the fixing ring is sealed through the second control tube 18. The gas inside 11 is evacuated, so that the inside of the fixed ring 11 is in a vacuum state, and then the positioning cylinder 14 is manually rotated, so that the positioning cylinder 14 drives the cross plate 13 to move downward, so that the cross plate 13 presses the inner cylinder 12 downward, and the inner cylinder 12 is to be determined The seal ring 8 moves downward, opening the gap between the seal ring 8 and the bottle body 1, so that the gas in the bottle body 1 diffuses into the fixed ring 11, and then the seal ring 8 is positioned in the reverse direction, so that the sample can be divided into several times. After testing, the probe is inserted into the fixed ring 11 through the rubber plug 16 to detect the gas sample, thereby avoiding mixing with external air.

The above are only preferred specific implementations of the utility model, but the scope of protection of the utility model is not limited thereto, and any skilled person familiar with the technical field within the technical scope disclosed in the utility model, according to the utility model The equivalent replacement or change of the technical solution and its utility model concept should be covered within the protection scope of the present utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and The utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A gas sampling device for environmental detection, comprising a bottle body (1), characterized in that, the upper surface of the bottle body (1) is fixedly connected with a confining ring (7), and the upper surface of the bottle body (1) The surface is fixedly connected with a fixed ring (11), the outer surface of the fixed ring (11) is fixedly connected with a second control tube (18), and the inner wall of the bottle body (1) is slidably connected with a sealing ring (8). The upper surface of the sealing ring (8) is slidingly connected with the bottom surface of the restricting ring (7), and a rubber plug (16) is arranged above the sealing ring (8). 2. A kind of gas sampling device for environmental detection according to claim 1, characterized in that, the outer surface of the rubber plug (16) is fixedly connected with a threaded sleeve (15), and the outer surface of the threaded sleeve (15) The surface is threaded with a positioning cylinder (14), and the inner wall of the positioning cylinder (14) is threaded with the outer surface of the fixing ring (11). 3. A kind of gas sampling device for environmental detection according to claim 2, characterized in that, the inside of the positioning cylinder (14) is fixedly connected with a cross plate (13), and the lower surface of the cross plate (13) An inner cylinder (12) is slidably connected, and the bottom of the inner cylinder (12) is fixedly connected with the upper surface of the sealing ring (8). 4. A gas sampling device for environmental detection according to claim 3, characterized in that a spring (9) is sleeved on the outer surface of the inner cylinder (12), and the top of the spring (9) is fixedly connected to There is a limiting plate (10), the bottom of the spring (9) is fixedly connected to the upper surface of the sealing ring (8), the outer surface of the limiting plate (10) is fixedly connected to the fixed ring (11), and the limiting plate The inner wall of (10) is slidingly connected with the outer surface of the inner cylinder (12). 5. A gas sampling device for environmental detection according to claim 3, characterized in that a sealing block (19) is slidably connected to the inside of the inner cylinder (12), and the bottom of the sealing block (19) rotates A threaded rod (2) is connected, the outer surface of the threaded rod (2) is rotatably connected with the bottle body (1), and the bottom of the threaded rod (2) is fixedly connected with a rotating sleeve (6). 6. A gas sampling device for environmental detection according to claim 5, characterized in that, the outer surface of the threaded rod (2) is threadedly connected with a sealing plate (3), and the outer surface of the sealing plate (3) The surface is slidingly connected with the inner wall of the bottle body (1), and the bottom of the bottle body (1) is provided with a control hole (5). 7. A kind of gas sampling device for environmental detection according to claim 1, characterized in that, the upper surface of the bottle body (1) is fixedly connected with a first control tube (4), and the bottle body (1) The outer surface of the handle (17) is fixedly connected.

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