Storage equipment for waste gas detection

Abstract

The utility model discloses storage equipment for waste gas detection, and aims to realize efficient collection and sealing of gas. The equipment comprises a storage tank, a piston is slidably arranged in the storage tank, and the piston is connected to external driving equipment through a piston rod and used for driving the piston to move to form negative pressure so as to suck waste gas; a cavity is formed in the top of the storage tank, a sealing plug capable of longitudinally sliding is arranged in the cavity, an air channel is formed in the middle of the sealing plug, and the air channel and the air port are communicated or closed through vertical movement of the sealing plug; a conical slot is formed in the top of the sealing plug and is matched with a conical insertion block at the bottom of the sealing cover, so that the air passage is sealed, impurities are prevented from entering and the accuracy of subsequent detection is ensured; push-pull blocks are arranged on the two sides of the top of the sealing plug and matched with a limiting threaded rod and a limiting block, and stable operation and sealing performance of the sealing plug are guaranteed; a longitudinal limiting sliding groove is further formed in the inner side of the cavity and matched with a limiting sliding block at the bottom of the sealing plug to limit the movement track of the sealing plug and prevent the sealing plug from disengaging from the cavity.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas detection technology, specifically to a storage device for exhaust gas detection. Background Technology

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and manufacturing processes, especially industrial waste gas generated by factories, which affects human health. Therefore, it is necessary to test and analyze waste gas. Usually, waste gas testing involves inputting the waste gas into a storage device and then sending it to a laboratory for testing and analysis.

[0003] Utility model patent CN217875288U discloses a high-sealing storage device for exhaust gas detection, including a storage sealing assembly, an automatic sampling assembly movably installed at the tail of the storage sealing assembly, a threaded cap detachably installed on the outer surface of the head end of the storage sealing assembly, and a sampling needle detachably installed on the inner surface of the head end of the storage sealing assembly.

[0004] The collection needle is used in conjunction with a rubber sealing ring. During collection, the collection needle passes through the rubber sealing ring to enter the bottle. After collection, the rubber property is utilized to restore the seal after the collection needle is pulled out.

[0005] However, under long-term use, the rubber sealing ring will be continuously penetrated by the sampling needle, which will cause the sealing performance of the rubber sealing ring to deteriorate, thereby increasing the probability of exhaust gas leakage. Utility Model Content

[0006] In view of the technical problems in the prior art, the present invention provides a storage device for exhaust gas detection, the purpose of which is to solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A storage device for exhaust gas detection includes a storage tank, a piston slidably disposed inside the storage tank, a piston rod perpendicularly disposed on the lower side of the piston passing through the bottom of the storage tank, a drive device disposed outside the storage tank to drive the piston rod to move, a cavity with an upper opening at the top of the storage tank, air ports communicating with the inside of the tank being disposed on the left and right sides of the cavity, a sealing plug that can slide longitudinally and can close the air ports being disposed inside the cavity, an air passage communicating with the cavity being disposed in the middle of the sealing plug, and by moving the sealing plug upward, the air ports and the air passage can be connected through the cavity.

[0009] Preferably, the top of the sealing plug has a conical slot corresponding to the airway, the top of the airway has a sealing cap that can seal it, and the bottom of the sealing cap has a conical insert that matches the conical slot at the top of the airway.

[0010] Preferably, the top left and right sides of the sealing plug are provided with push-pull blocks, and one of the push-pull blocks is provided with a limiting threaded rod vertically. The end of the limiting threaded rod located at the top of the corresponding push-pull block is provided with a limiting block that can abut against the upper side of the push-pull block. The limiting threaded rod can be threaded downward to the top of the storage tank.

[0011] Preferably, the cavity has longitudinally spaced limiting grooves on the front and rear sides corresponding to the sealing plugs, and the bottom of the sealing plug has limiting sliders on the front and rear sides that extend into the corresponding limiting grooves and can slide longitudinally inside them.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model provides a storage device for waste gas detection. Through the longitudinal movement of a sealing plug, the gas inlet and gas passage are connected through a cavity, enabling the sealing and opening of the storage tank. When open, the gas passage connects to the inside of the storage tank through the cavity and gas inlet. An external drive device drives a piston to collect the gas. After collection, simply pushing the sealing plug downwards seals the gas inlet. The gas passage design prevents pressure buildup within the cavity during downward pushing. Combined with a limiting threaded rod, the sealing plug is locked, preventing longitudinal movement. The overall structure is ingeniously designed, allowing for convenient and quick gas collection without the need for a sampling needle, reducing damage to the sealing plug and ensuring the storage tank's airtightness. Attached Figure Description

[0014] Figure 1 This is a front cross-sectional view of a storage device for exhaust gas detection according to the present invention;

[0015] Figure 2 This is a side cross-sectional view of a storage device for exhaust gas detection according to the present invention.

[0016] In the diagram: 1. Storage tank; 2. Piston; 3. Piston rod; 4. Limiting slider; 5. Cavity; 6. Air port; 7. Sealing plug; 8. Air passage; 9. Conical slot; 10. Sealing cover; 11. Conical insert; 12. Push-pull block; 13. Limiting threaded rod; 14. Limiting block; 15. Limiting groove. 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 protection scope of the present utility model.

[0018] Please see Figure 1-2 This application proposes a storage device for exhaust gas detection, including a storage tank 1, a piston 2 slidably disposed inside the storage tank 1, a piston rod 3 vertically disposed on the lower side of the piston 2 passing through the bottom of the storage tank 1, a driving device disposed outside the storage tank 1 that can drive the piston rod 3 to move, a cavity 5 with an upper opening at the top of the storage tank 1, air ports 6 communicating with the inside of the bottle being disposed on the left and right sides of the cavity 5, a sealing plug 7 that can slide longitudinally and can close the air ports 6 being disposed inside the cavity 5, an air passage 8 communicating with the inside of the cavity 5 being disposed in the middle of the sealing plug 7, and by moving the sealing plug 7 upward, the air ports 6 and the air passage 8 can be connected through the cavity 5;

[0019] By setting a sealing plug 7 in the cavity 5, when gas collection is required, the sealing plug 7 is pulled upward to disengage it from the air port 6, thereby connecting the air passage 8 through the cavity 5 and the air port 6. At this time, the piston 2 is pulled out by an external driving device (the driving device and driving method are existing technologies and will not be described in detail here), creating a negative pressure in the storage tank 1, thereby drawing the waste gas into the storage tank 1. After the gas collection is completed, the sealing plug 7 is pressed downward to block the air port 6, thus sealing the waste gas in the storage tank 1. The overall structure is ingeniously designed, making gas collection convenient and quick, and eliminating the need for a collection needle, reducing damage to the sealing plug 7 and ensuring the airtightness of the storage tank 1.

[0020] Furthermore, a conical slot 9 is provided at the top of the sealing plug 7 corresponding to the air passage 8, and a sealing cover 10 is provided at the top of the air passage 8 to seal it. A conical insert 11 is provided at the bottom of the sealing cover 10 to match the conical slot 9 at the top of the air passage 8, so as to facilitate the closing of the sealing cover 10, seal the air passage 8, prevent foreign matter from entering the air passage 8, and avoid affecting the subsequent detection of exhaust gas.

[0021] Furthermore, push-pull blocks 12 are provided horizontally on the left and right sides of the top of the sealing plug 7. A limiting threaded rod 13 is provided vertically on one of the push-pull blocks 12. A limiting block 14 that can abut against the upper side of the push-pull block 12 is provided at one end of the limiting threaded rod 13 at the top of the corresponding push-pull block 12. The limiting threaded rod 13 can be threadedly connected to the top of the storage tank 1 downwards.

[0022] The push-pull block 12 is provided to facilitate the movement of the sealing plug 7 when sealing or opening the storage tank 1. At the same time, the setting of the limiting thread screw 13 ensures that exhaust gas will not leak due to external influences during the sealing process.

[0023] Furthermore, the front and rear sides of the cavity 5 are respectively provided with longitudinally extending limiting grooves 15 corresponding to the sealing plugs 7. The bottom front and rear sides of the sealing plugs 7 are respectively provided with limiting sliders 4 that penetrate into the corresponding limiting grooves 15 and can slide longitudinally inside them, thereby restricting the movement trajectory of the sealing plugs 7 and making it easy for them to open or close, without worrying about the sealing plugs 7 falling out of the cavity 5.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A storage device for exhaust gas detection, comprising a storage tank (1), a piston (2) slidably disposed inside the storage tank (1), a piston rod (3) perpendicularly disposed on the lower side of the piston (2) passing through the bottom of the storage tank (1), and a driving device for driving the piston rod (3) to move outside the storage tank (1), characterized in that: The storage tank (1) top is provided with an upper end opening cavity (5), the cavity (5) is provided with gas port (6) which communicates with bottle inside on left and right sides, the cavity (5) is provided with sealing plug (7) which can slide vertically and can seal gas port (6), the sealing plug (7) is provided with air passage (8) which communicates with cavity (5) in middle part, by sealing plug (7) upward movement, can make gas port (6) and air passage (8) communicate through cavity (5).

2. The storage device for exhaust gas detection according to claim 1, wherein The sealing plug (7) top is provided with tapered slot (9) corresponding air passage (8), the air passage (8) top is provided with sealing cover (10) which can seal it, the sealing cover (10) bottom is provided with tapered plug (11) which is matched with tapered slot (9) of air passage (8) top.

3. The storage device for exhaust gas detection according to claim 1, wherein The sealing plug (7) top is provided with push-pull block (12) on left and right sides, the push-pull block (12) is vertically provided with limiting screw rod (13) on one side, the limiting screw rod (13) is provided with limiting block (14) which can abut on the upper side of push-pull block (12) on the end corresponding to the top of push-pull block (12), the limiting screw rod (13) downward can be screwed with the top of storage tank (1).

4. The storage device for exhaust gas detection according to any one of claims 1 to 3, characterized in that, The cavity (5) is longitudinally provided with limiting sliding slot (15) corresponding to sealing plug (7) on front and back sides, the sealing plug (7) bottom is provided with limiting sliding block (4) which can slide vertically in the inside of corresponding limiting sliding slot (15) on front and back sides.

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