Gas collection device of gas analyzer

Abstract

The utility model discloses a gas collection device of a gas analyzer, which comprises a gas storage cylinder, and further comprises a movable plugging mechanism and a connection filtering mechanism which are arranged on the gas storage cylinder, the movable plugging mechanism comprises an exhaust hole and a movable groove, the exhaust hole is formed in the bottom wall of the air cylinder, the movable groove is formed in the side wall of the air cylinder, a sliding block is movably arranged in the movable groove, a spring is arranged between the sliding block and the movable groove, the sliding block is connected with a connecting rod, a sealing plate is arranged on the connecting rod, and the sealing plate is connected with the air cylinder. And the sealing plate is movably sealed on the exhaust hole. The utility model belongs to the technical field of gas collection, and particularly relates to a gas collection device of a gas analyzer.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas collection, in particular to a gas collection device of a gas analyzer. Background Art

[0002] A gas analyzer is a process analysis instrument that measures gas composition. It mainly uses gas sensors to detect the types of gases present in the environment. It is widely used in production lines, factories, laboratories and other places. When using a gas analyzer, a gas collection device is often required for the gas analyzer to detect.

[0003] The patent with publication number CN215414629U discloses a gas collection device for a gas analyzer, comprising: a box body; a plurality of partitions, wherein the plurality of partitions are fixedly mounted on the top inner wall of the box body, and the bottoms of the plurality of partitions are fixedly connected to the bottom inner wall of the box body; a connecting plate, wherein the connecting plate is arranged above the box body; two cylinders, wherein the two cylinders are fixedly mounted on the top of the box body, and the output shafts of the two cylinders are fixedly connected to the bottom of the connecting plate; a plurality of collection mechanisms, wherein the plurality of collection mechanisms are arranged on the top of the box body and the bottom of the connecting plate; and a plurality of self-sealing mechanisms, wherein the plurality of self-sealing mechanisms are arranged on the box body.

[0004] However, when the above device is in use, since the box cannot be vacuum-exhausted, some gas in the box will remain when it is exhausted, so that the residual gas is mixed into the subsequent sampling, affecting the accuracy of the sampling analysis. Utility Model Content

[0005] In order to solve the above-mentioned problem, the utility model provides a gas collection device of a gas analyzer with less exhaust residue.

[0006] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a gas collection device of a gas analyzer, including a gas cylinder, and also including a movable blocking mechanism and a connecting filtering mechanism arranged on the gas cylinder; the movable blocking mechanism includes an exhaust hole and a movable groove, the exhaust hole is arranged on the bottom wall of the gas cylinder, the movable groove is arranged on the side wall of the gas cylinder, a slider is movably arranged in the movable groove, a spring is arranged between the slider and the movable groove, a connecting rod is connected to the slider, a sealing plate is arranged on the connecting rod, and the sealing plate movably blocks the exhaust hole.

[0007] Furthermore, the connection and filtering mechanism comprises a one-way valve and a connecting sleeve, the one-way valve is penetrated through the bottom wall of the air cylinder, the connecting sleeve is threadedly connected to the air cylinder, and the connecting sleeve is provided with a filter screen and an air inlet pipe.

[0008] Furthermore, a sealing gasket is provided between the connecting sleeve and the air storage cylinder, and the sealing gasket is made of rubber.

[0009] Furthermore, the connecting rod is arranged in an L shape, and the connecting rod is arranged close to the connecting sleeve.

[0010] Preferably, a piston plate is movably provided in the air storage cylinder, a push-pull rod is connected to the piston plate, and the push-pull rod is movably arranged to penetrate the top wall of the air storage cylinder.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: the utility model provides a gas collection device for a gas analyzer, which can block the exhaust hole by arranging a connecting rod and a sealing plate, and is squeezed and fixed by a connecting sleeve, and cooperates with a one-way valve to allow the gas cylinder to only take in but not out, and by arranging a push-pull rod and a piston plate, the gas can be collected and stored to avoid mixing with other impure gases, thereby ensuring the purity of the gas collection; by arranging a filter, particulate impurities such as dust in the collected gas can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional structural diagram of a gas collection device of a gas analyzer proposed by the utility model;

[0013] Figure 2 This is an internal structural diagram of a gas collection device of a gas analyzer proposed by the utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0015] Among them, 1. air storage cylinder, 2. movable sealing mechanism, 3. connecting filtering mechanism, 4. exhaust hole, 5. movable groove, 6. slider, 7. spring, 8. connecting rod, 9. sealing plate, 10. one-way valve, 11. connecting sleeve, 12. filter, 13. intake pipe, 14. sealing gasket, 15. piston plate, 16. push-pull rod. DETAILED DESCRIPTION

[0016] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1-3 As shown, the utility model proposes a gas collection device for a gas analyzer, comprising a gas storage cylinder 1, and also comprising a movable blocking mechanism 2 and a connecting filtering mechanism 3 arranged on the gas storage cylinder 1; the movable blocking mechanism 2 comprises an exhaust hole 4 and a movable groove 5, the exhaust hole 4 is arranged on the bottom wall of the gas storage cylinder 1, the movable groove 5 is arranged on the side wall of the gas storage cylinder 1, a slider 6 is movably arranged in the movable groove 5, a spring 7 is arranged between the slider 6 and the movable groove 5, a connecting rod 8 is connected to the slider 6, a sealing plate 9 is arranged on the connecting rod 8, the sealing plate 9 movably blocks the exhaust hole 4, the connecting filtering mechanism 3 is connected to the gas storage cylinder 1, the connecting rod 8 is pushed to move, so that the connecting rod 8 drives the sealing plate 9 and the slider 6 to move, the sealing plate 9 blocks the exhaust hole 4, and at the same time the slider 6 squeezes the spring 7 to collect gas by negative pressure.

[0019] The connecting filter mechanism 3 includes a one-way valve 10 and a connecting sleeve 11. The one-way valve 10 is penetrated through the bottom wall of the air cylinder 1. The connecting sleeve 11 is threadedly connected to the air cylinder 1. A filter screen 12 and an air inlet pipe 13 are provided on the connecting sleeve 11. The connecting sleeve 11 is rotated to thread the connecting sleeve 11 to the air cylinder 1. At the same time, the connecting sleeve 11 squeezes the connecting rod 8 and presses the connecting rod 8 against the bottom wall of the air cylinder 1.

[0020] A sealing gasket 14 is provided between the connecting sleeve 11 and the air storage cylinder 1 . The sealing gasket 14 is made of rubber and can seal between the connecting sleeve 11 and the air storage cylinder 1 .

[0021] The connecting rod 8 is arranged in an L shape and is arranged close to the connecting sleeve 11 .

[0022] A piston plate 15 is movably provided in the gas cylinder 1, and a push-pull rod 16 is connected to the piston plate 15. The push-pull rod 16 movably penetrates the top wall of the gas cylinder 1. The push-pull rod 16 is pushed to the bottom so that the piston plate 15 contacts the bottom wall of the gas cylinder 1. After the connecting sleeve 11 is installed and the exhaust hole 4 is blocked, the push-pull rod 16 is pulled to drive the piston plate 15 to move, so that negative pressure is formed in the gas cylinder 1 for gas collection.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A gas collection device for a gas analyzer, comprising a gas storage cylinder, characterized in that: It also includes a movable blocking mechanism and a connecting filtering mechanism arranged on the air cylinder; the movable blocking mechanism includes an exhaust hole and a movable groove, the exhaust hole is arranged on the bottom wall of the air cylinder, the movable groove is arranged on the side wall of the air cylinder, a slider is movably arranged in the movable groove, a spring is arranged between the slider and the movable groove, a connecting rod is connected to the slider, a sealing plate is arranged on the connecting rod, and the sealing plate movably blocks the exhaust hole.

2. The gas collection device of a gas analyzer according to claim 1, characterized in that: The connection and filtering mechanism comprises a one-way valve and a connection sleeve. The one-way valve is arranged through the bottom wall of the air storage cylinder. The connection sleeve is threadedly connected to the air storage cylinder. The connection sleeve is provided with a filter screen and an air inlet pipe.

3. The gas collection device of a gas analyzer according to claim 2, characterized in that: A sealing gasket is provided between the connecting sleeve and the air storage cylinder, and the material of the sealing gasket is rubber.

4. The gas collection device of a gas analyzer according to claim 3, characterized in that: The connecting rod is arranged in an L shape and is arranged close to the connecting sleeve.

5. The gas collection device of a gas analyzer according to claim 4, characterized in that: A piston plate is movably arranged in the air storage cylinder, a push-pull rod is connected to the piston plate, and the push-pull rod is movably arranged to penetrate the top wall of the air storage cylinder.

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