Test gas collecting device

Abstract

The utility model relates to the field of gas collection, and discloses a test gas collecting device which comprises a base, a collecting head is arranged on the lower portion of the base, a collecting pipe is fixedly connected to the upper portion of the collecting head, the collecting pipe penetrates through the base and is fixedly connected with the base, and a limiting ring is fixedly connected to the middle of the top face of the base. A collecting bottle is arranged on the upper portion of the base, a sealing cover is arranged on the lower portion of the collecting bottle, a sealing piece is arranged on the upper portion of the collecting pipe, a connecting opening is formed in the middle of the sealing cover, the sealing cover is in threaded connection with the collecting bottle, and a sealing gasket is arranged in the sealing cover. According to the utility model, the base is matched with the collecting head, the collecting pipe, the limiting ring, the sealing cover, the collecting bottle and the sealing element, so that the collecting bottle and the sealing cover can be more intuitively and quickly connected with the base, and the collecting bottle is more convenient to mount and take after the collection is completed, and is more practical.

Description

Technical Field

[0001] This utility model relates to the field of gas collection, and in particular to a test gas collection device. Background Technology

[0002] Experimental gas collection devices are used to collect and analyze gases generated during experiments, and are widely used in fields such as chemical experiments, environmental monitoring, and engineering research.

[0003] A search revealed that Chinese Patent Publication No. CN221224315U discloses a test gas collection device, including a base plate with casters. A gas collection box with a top opening is installed on the base plate. A gas collection pipe is connected to one side of the gas collection box, with the end of the gas collection pipe facing away from the gas collection box vertically towards the ground. A fixing plate is installed inside the gas collection box, and the connection between the gas collection pipe and the gas collection box is located below the fixing plate. The fixing plate has multiple fixing holes, and a gas collection bottle is inserted into the fixing holes with its opening facing vertically downward. A cover plate is installed at the top opening of the gas collection box, which has the advantage of being more convenient to use on the construction site.

[0004] The aforementioned device, while capable of collecting gas through the interaction between the gas collecting bottle, the active seal of the fixed plate, and the bottle stopper, suffers from several drawbacks. The seal is located at the bottom of the fixed plate, making the placement of the bottle stopper inconvenient. Furthermore, the installation and removal of the gas collecting bottle require disassembling and reassembling the cover plate, arranging the bottles sequentially, and ensuring all bottles are securely inserted into the clamps. This process is time-consuming, inconvenient, and impractical. Therefore, an experimental gas collecting device is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a test gas collection device, which aims to improve the existing technology where the sealing element is located at the bottom of the fixed plate, which makes it inconvenient to place the bottle stopper. Furthermore, the installation and removal of the gas collecting bottle requires disassembling and assembling the cover plate, arranging the gas collecting bottle in sequence, and ensuring that all gas bottles are inserted into the clamps, which is time-consuming, inconvenient, and impractical.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a test gas collection device, comprising a base, a collection head disposed at the lower part of the base, a collection tube fixedly connected to the upper part of the collection head, the collection tube penetrating the base and fixedly connected thereto, a limit ring fixedly connected to the middle of the top surface of the base, a collection bottle disposed at the upper part of the base, a sealing cap disposed at the lower part of the collection bottle, a sealing element disposed at the upper part of the collection tube, a connection port opened in the middle of the sealing cap, the sealing cap being threadedly connected to the collection bottle, a sealing gasket disposed inside the sealing cap, and the collection tube and the sealing element being movably connected to the sealing gasket.

[0007] As a further description of the above technical solution:

[0008] The sealing gasket includes a sealing sleeve, the collecting tube is movably connected to the sealing sleeve, the sealing sleeve is fixedly connected to the connecting port, and a connecting gasket is fixedly connected to the top of the sealing sleeve.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the connecting pad has multiple sealing grooves.

[0011] As a further description of the above technical solution:

[0012] The sealing element includes a connecting rod, and a fixing plug is fixedly connected to the bottom of the connecting rod.

[0013] As a further description of the above technical solution:

[0014] A sealing plug is fixedly connected to the top of the connecting rod, and the sealing plug is movably connected to the connecting pad.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the sealing plug is fixedly connected with multiple sealing rings, the sealing rings are movably connected to the sealing groove, and the top of the sealing plug is fixedly connected with a gasket.

[0017] As a further description of the above technical solution:

[0018] The upper part of the collection tube has multiple air outlets.

[0019] As a further description of the above technical solution:

[0020] The top of the collection tube has an installation port, and the bottom of the installation port has a limiting groove. The fixing plug is movably connected to the limiting groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting the cooperation between the base and the collecting head, collecting tube, limiting ring and sealing cap, collecting bottle and sealing element, the collecting bottle and sealing cap can be connected to the base more intuitively and quickly, making the installation of the collecting bottle and the removal of the collecting bottle after collection more convenient and practical.

[0023] 2. In this utility model, by setting up the cooperation between the collection bottle, collection tube, sealing cap and sealing sleeve, the gas collection is more airtight and less prone to leakage. At the same time, by the cooperation between the connecting gasket and the sealing plug, the sealing cap can be sealed in time after the gas collection is completed, so as to ensure the airtightness of the collection bottle, making it more practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an experimental gas collection device proposed in this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of a test gas collection device proposed in this utility model.

[0026] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of an experimental gas collection device proposed in this utility model.

[0027] Figure 4 This is a cross-sectional three-dimensional structural diagram of the sealing cover and sealing element of the experimental gas collection device proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the sealing component of the experimental gas collection device proposed in this utility model.

[0029] Legend: 1. Base; 2. Collection head; 3. Limiting ring; 4. Collection bottle; 5. Collection tube; 6. Sealing cap; 7. Sealing element; 61. Connection port; 62. Sealing gasket; 621. Sealing sleeve; 622. Connecting gasket; 623. Sealing groove; 71. Connecting rod; 72. Fixing plug; 73. Sealing plug; 731. Gasket; 732. Sealing ring; 51. Air outlet; 52. Installation port; 53. Limiting groove. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 2This utility model provides an embodiment of a test gas collection device, comprising a base 1 for connecting various components, a collection head 2 for collecting test gas at the lower part of the base 1 and connected to an air pump, the air pump being disposed inside the base 1, a collection tube 5 fixedly connected to the upper part of the collection head 2 and connected to the air pump, the collection tube 5 penetrating the base 1 and being fixedly connected thereto, a limiting ring 3 fixedly connected to the middle of the top surface of the base 1 for limiting the position of a collection bottle 4, a collection bottle 4 for collecting gas at the upper part of the base 1, a sealing cap 6 for collecting gas at the lower part of the collection bottle 4, and a sealing element 7 made of rubber at the upper part of the collection tube 5 for sealing the collection bottle 4 in conjunction with the sealing cap 6.

[0032] like Figure 3 - Figure 5 As shown, the sealing cap 6 has a connection port 61 in the middle for connecting various components. The sealing cap 6 is threaded to the collection bottle 4. The sealing cap 6 has a sealing gasket 62 inside, which is made of rubber. The collection tube 5 and the sealing element 7 are movably connected to the sealing gasket 62. The sealing gasket 62 includes a sealing sleeve 621, which is used to connect the collection tube 5 and to ensure the sealing performance of the sealing cap 6. The collection tube 5 is movably connected to the sealing sleeve 621. The sealing sleeve 621 is fixedly connected to the connection port 61. A connecting gasket 622 is fixedly connected to the top of the sealing sleeve 621, which is used to connect the sealing plug 73 and to ensure the sealing performance between the collection bottle 4 and the sealing cap 6. The inner wall of the connecting gasket 622 has multiple sealing grooves 623, which are used to connect the sealing ring 732.

[0033] Furthermore, the sealing element 7 includes a connecting rod 71, which is used to connect various components. A fixing plug 72 is fixedly connected to the bottom of the connecting rod 71, and a cavity is provided in the middle to facilitate deformation and reset, so as to connect the sealing element 7 and the collection tube 5. A sealing plug 73 is fixedly connected to the top of the connecting rod 71, which is used to seal the collection bottle 4 with the connecting pad 622. The sealing plug 73 is movably connected to the connecting pad 622. Multiple sealing rings 732 are fixedly connected to the outer wall of the sealing plug 73, which are used to cooperate with the sealing groove 623 to improve the sealing performance. The sealing rings 732 are movably connected to the sealing groove 623. A retaining pad 731 is fixedly connected to the top of the sealing plug 73, which is used to limit the movement between the sealing element 7 and the sealing cap 6.

[0034] Furthermore, the upper part of the collecting pipe 5 is provided with multiple air outlets 51 for gas to enter the collecting bottle 4. The top of the collecting pipe 5 is provided with an installation port 52 for connecting with the sealing element 7. The bottom of the installation port 52 is provided with a limiting groove 53 for limiting the sealing element 7. The fixing plug 72 is movably connected to the limiting groove 53.

[0035] Working principle: In use, first, place the sealing sleeve 621 on the sealing cap 6 over the outside of the collecting tube 5, so that the collecting tube 5 passes through the sealing cap 6. Then, insert the fixing plug 72 on the sealing element 7 into the limiting groove 53 through the mounting port 52, and make the lower part of the connecting rod 71 lock into the mounting port 52. Then, tighten the collecting bottle 4 and the sealing cap 6 so that the bottle mouth of the collecting bottle 4 presses against the sealing gasket 62. Then, move the collecting bottle 4 towards the limiting ring 3 so that the sealing cap 6 is completely locked into the limiting ring 3. The suction pump can then be turned on. The suction pump collects the gas through the collecting head 2 and then sends it into the collecting tube 5. Once the gas collection is complete, the collection bottle 4 can be pulled upwards, causing the collection tube 5 to slowly exit the sealing sleeve 621. This allows the sealing element 7 to gradually approach the sealing gasket 62 until the sealing plug 73 is inserted into the connecting gasket 622, and the sealing ring 732 on the outside of the sealing plug 73 is engaged in the sealing groove 623. At this point, the sealing cap 6 will be completely sealed. Then, the collection bottle 4 can be pulled upwards again, causing the fixed plug 72 to be subjected to an upward force. Under the action of the limiting groove 53 and the mounting port 52, the plug 72 deforms and passes through the mounting port 52, causing the sealing element 7 to detach from the collection tube 5, thus completing the gas collection.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A test gas collection device, comprising a base (1), characterized in that: The base (1) is provided with a collection head (2) at its lower part. A collection tube (5) is fixedly connected to the upper part of the collection head (2). The collection tube (5) passes through the base (1) and is fixedly connected to it. A limit ring (3) is fixedly connected to the middle of the top surface of the base (1). A collection bottle (4) is provided at the upper part of the base (1). A sealing cap (6) is provided at the lower part of the collection bottle (4). A sealing element (7) is provided at the upper part of the collection tube (5). A connection port (61) is opened in the middle of the sealing cap (6). The sealing cap (6) is threadedly connected to the collection bottle (4). A sealing gasket (62) is provided inside the sealing cap (6). The collection tube (5) and the sealing element (7) are movably connected to the sealing gasket (62).

2. The experimental gas collection device according to claim 1, characterized in that: The sealing gasket (62) includes a sealing sleeve (621), the collecting tube (5) is movably connected to the sealing sleeve (621), the sealing sleeve (621) is fixedly connected to the connecting port (61), and a connecting pad (622) is fixedly connected to the top of the sealing sleeve (621).

3. The experimental gas collection device according to claim 2, characterized in that: The inner wall of the connecting pad (622) is provided with sealing grooves (623), and there are multiple of them.

4. The test gas collection device according to claim 3, characterized in that: The sealing element (7) includes a connecting rod (71), and a fixing plug (72) is fixedly connected to the bottom of the connecting rod (71).

5. The test gas collection device according to claim 4, characterized in that: A sealing plug (73) is fixedly connected to the top of the connecting rod (71), and the sealing plug (73) is movably connected to the connecting pad (622).

6. The test gas collection device according to claim 5, characterized in that: The outer wall of the sealing plug (73) is fixedly connected with a sealing ring (732) and there are multiple sealing rings (732). The sealing ring (732) is movably connected to the sealing groove (623). The top of the sealing plug (73) is fixedly connected with a gasket (731).

7. The experimental gas collection device according to claim 1, characterized in that: The upper part of the collection pipe (5) has multiple air outlets (51).

8. The test gas collection device according to claim 4, characterized in that: The top of the collection tube (5) is provided with an installation port (52), and the bottom of the installation port (52) is provided with a limiting groove (53). The fixing plug (72) is movably connected to the limiting groove (53).

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