CN219084517U

CN219084517U - Gas collection device for environmental monitoring

Info

Publication number: CN219084517U
Application number: CN202320044167.2U
Authority: CN
Inventors: 孙高平
Original assignee: Jiangsu Chiyi Technology Co ltd
Current assignee: Jiangsu Chiyi Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-26
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a gas collection device for environmental monitoring, and relates to the field of environmental detection equipment. The utility model provides a gas collection device for environmental monitoring, includes the collection section of thick bamboo, fixed intercommunication has the intake pipe on the collection section of thick bamboo, still includes: a piston disc slidably connected within the collection canister for drawing gas; the sealing cover is connected to the outer wall of the air inlet pipe, a sealing gasket is arranged on the inner wall of the bottom of the sealing cover, and the sealing gasket abuts against the air inlet pipe; the two groups of inserting rods are symmetrically and fixedly connected to the outer walls of the two sides of the air inlet pipe; according to the utility model, after the sampling and collection of the external gas are completed, the sealing gasket is abutted against the air inlet end of the air inlet pipe, so that the air inlet pipe can be sealed, and the sealing groove which is matched with the inflated wrapping air bag and is tightly attached to the outer wall of the air inlet pipe is formed, so that the sealing performance of the air inlet pipe is improved, the mixing of the external gas and impurities into the collecting cylinder is effectively avoided, and the accuracy of gas detection is improved.

Description

Gas collection device for environmental monitoring

Technical Field

The utility model belongs to the technical field of environment detection equipment, and particularly relates to a gas collection device for environment monitoring.

Background

The sampling of the gas is the basis of air quality detection, the existing gas sampling method is two, firstly, the adsorption is carried out through an adsorbent, the pollutants with lower concentration in the atmosphere are enriched, such as an air extraction method and a filter membrane method, the adsorption and collection mode is mainly applied to the air quality detection when the atmosphere is polluted, and secondly, the gas collection is directly carried out through a gas collection container, such as a glass bottle, a plastic bag and the like.

The utility model discloses a gas sampling and collecting device for environmental monitoring, and relates to the technical field of environmental detection equipment, wherein the gas sampling and collecting device comprises a sampling tube and a sampling head fixedly connected to the bottom of the sampling tube, a partition assembly is arranged on the sampling head and comprises a partition cover, a collision spring, a clamping block, a limit column and a rubber ring, the partition cover is matched with the sampling head, the limit column is fixedly connected with the inner wall of the partition cover, a limit groove matched with the limit column is formed in the side face of the sampling head, a placing groove is formed in the side face of the sampling head, one end of the collision spring is fixedly connected with the inner wall of the placing groove, the other end of the collision spring is fixedly connected with the clamping block, and a clamping groove matched with the clamping block is formed in the inner wall of the partition cover. The utility model relates to a gas sampling and collecting device for environmental monitoring, which is characterized in that a partition component is arranged to finally seal a sampling head, so that the mixing of external gas and impurities is avoided, and the accuracy of gas detection is improved;

the above-mentioned patent still has following shortcoming, after accomplishing the sampling to external gas and collecting, cooperates single rubber circle of lid cooperation and the laminating of sample head to play sealed effect mutually, if the rubber circle is tight with the not of sample head laminating, can influence the sealed effect of rubber circle to the sample head, then closely laminate with the sample head under the effect of cut off the lid if the rubber circle for the rubber circle is after long-time repeatedly using, then can appear wearing and tearing because of the friction, reduces the sealed effect to the sample head.

Disclosure of Invention

The technical problem to be solved by the present utility model is to overcome the disadvantages of the prior art and provide a gas collecting device for environmental monitoring, which can overcome the above problems or at least partially solve the above problems.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

the utility model provides a gas collection device for environmental monitoring, includes the collection section of thick bamboo, fixed intercommunication has the intake pipe on the collection section of thick bamboo, still includes: a piston disc slidably connected within the collection canister for drawing gas; the sealing cover is connected to the outer wall of the air inlet pipe, a sealing gasket is arranged on the inner wall of the bottom of the sealing cover, and the sealing gasket abuts against the air inlet pipe; the two groups of plug-in rods are symmetrically and fixedly connected to the outer walls of the two sides of the air inlet pipe, and clamping assemblies for disassembling and assembling the sealing cover and the air inlet pipe are arranged in the plug-in rods; the hollow cavity is formed on the inserting and connecting rod, a piston plate is connected in the hollow cavity in a sliding manner, and the piston plate is connected with the clamping assembly through a connecting rod; the first conduit is fixedly communicated with the hollow cavity; the wrapping air bag is arranged on the inner wall of the sealing cover in a surrounding manner; and one end of the second conduit is fixedly communicated with the wrapping air bag, the other end of the second conduit is fixedly communicated with the hollow cavity, and the outer wall of the air inlet pipe is provided with a sealing groove.

In order to facilitate the disassembly and the assembly of the sealing cover and the air inlet pipe, preferably, the clamping assembly comprises a limiting rod, the limiting rod is fixedly connected to the outer wall of the air inlet pipe, a plug hole is formed in the limiting rod, a groove is formed in the side wall of the plug rod in an embedded mode, a fixing block is connected in the groove in a sliding mode, a spring is arranged between the fixing block and the groove, and the fixing block is clamped on the outer wall surface of the limiting rod.

In order to play the effect of spacing direction to the fixed block, further, the spacing spout has been seted up on the plug rod, spacing spout is linked together with the recess, sliding connection has spacing slider in the spacing spout, fixed block fixed connection is on spacing slider, spring fixed connection is between spacing slider and recess, its one end and spacing slider fixed connection of connecting rod, the other end and piston plate fixed connection.

In order to be convenient for sample gas, preferably, the piston plate is fixedly connected with a piston rod, and one end of the piston rod penetrating through the top of the collecting cylinder is fixedly connected with a handle.

In order to filter the gas, preferably, an activated carbon filter element is arranged in the collecting cylinder, and a filter screen is arranged in the air inlet end of the first conduit.

In order to facilitate the discharge of gas in the air bag, preferably, the parcel air bag is last to be fixedly connected with the relief pipe, be equipped with the relief valve on the relief pipe, fixedly connected with blast pipe on the relief pipe, be connected with valve switch on the blast pipe.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, after the sampling and collection of the external gas are completed, the sealing gasket is abutted against the air inlet end of the air inlet pipe, so that the air inlet pipe can be sealed, and the sealing groove which is matched with the inflated wrapping air bag and is tightly attached to the outer wall of the air inlet pipe is formed, so that the sealing performance of the air inlet pipe is improved, the mixing of the external gas and impurities into the collecting cylinder is effectively avoided, and the accuracy of gas detection is improved.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

In the drawings:

FIG. 1 is a schematic view of a gas collection device for environmental monitoring according to the present utility model;

FIG. 2 is a schematic view of a gas collection device for environmental monitoring according to the present utility model;

FIG. 3 is a schematic view showing the structure of a seal cover of a gas collecting device for environmental monitoring according to the present utility model;

FIG. 4 is an enlarged view of portion A of FIG. 3 of a gas collection device for environmental monitoring according to the present utility model;

FIG. 5 is an enlarged view of section B of FIG. 3 of a gas collection device for environmental monitoring according to the present utility model.

In the figure: 1. a collection cylinder; 101. an air inlet pipe; 102. a piston disc; 103. a piston rod; 104. a handle; 2. an activated carbon filter element; 3. a limit rod; 301. a plug hole; 4. sealing cover; 401. inserting a connecting rod; 402. a groove; 403. limiting sliding grooves; 404. a limit sliding block; 405. a fixed block; 406. a spring; 5. a sealing gasket; 6. a hollow cavity; 601. a piston plate; 602. a connecting rod; 603. a first conduit; 604. a filter screen; 605. a second conduit; 606. wrapping the air bag; 607. sealing grooves; 7. a pressure relief tube; 701. a pressure release valve; 702. an exhaust pipe; 703. and (3) switching the valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

Example 1:

referring to fig. 1 to 5, a gas collecting device for environmental monitoring includes a collecting cylinder 1, and an air inlet pipe 101 is fixedly connected to the collecting cylinder 1, and further includes: a piston disc 102 slidably connected within the cartridge 1 for drawing gas; the sealing cover 4 is connected to the outer wall of the air inlet pipe 101, a sealing gasket 5 is arranged on the inner wall of the bottom of the sealing cover 4, and the sealing gasket 5 is propped against the air inlet pipe 101; two groups of plug rods 401 are symmetrically and fixedly connected to the outer walls of two sides of the air inlet pipe 101, and clamping assemblies for disassembling and assembling the sealing cover 4 and the air inlet pipe 101 are arranged in the plug rods 401; the hollow cavity 6 is formed on the inserting rod 401, a piston plate 601 is connected in a sliding manner in the hollow cavity 6, and the piston plate 601 is connected with the clamping assembly through a connecting rod 602; a first conduit 603 fixedly communicated with the hollow cavity 6; a wrapping air bag 606 which is arranged around the inner wall of the sealing cover 4; and one end of the conduit II 605 is fixedly communicated with the wrapping air bag 606, the other end of the conduit II is fixedly communicated with the hollow cavity 6, and the outer wall of the air inlet pipe 101 is provided with a sealing groove 607.

The clamping assembly comprises a limiting rod 3, the limiting rod 3 is fixedly connected to the outer wall of the air inlet pipe 101, a plug hole 301 is formed in the limiting rod 3, a groove 402 is formed in the side wall of the plug rod 401 in an embedded mode, a fixing block 405 is connected in the groove 402 in a sliding mode, a spring 406 is arranged between the fixing block 405 and the groove 402, and the fixing block 405 is clamped to the surface of the outer wall of the limiting rod 3.

The plug rod 401 is provided with a limit sliding groove 403, the limit sliding groove 403 is communicated with the groove 402, a limit sliding block 404 is slidably connected in the limit sliding groove 403, a fixed block 405 is fixedly connected on the limit sliding block 404, a spring 406 is fixedly connected between the limit sliding block 404 and the groove 402, one end of a connecting rod 602 is fixedly connected with the limit sliding block 404, and the other end of the connecting rod 602 is fixedly connected with the piston plate 601.

A piston rod 103 is fixedly connected to the piston disc 102, and one end of the piston rod 103 penetrating through the top of the collecting cylinder 1 is fixedly connected with a handle 104.

An activated carbon filter element 2 is arranged in the collecting cylinder 1, and a filter screen 604 is arranged in the air inlet end of the first conduit 603.

When in use, a user manually pulls the piston rod 103 to move upwards through the handle 104, the piston rod 103 drives the piston disc 102 to synchronously move upwards, external air is extracted through the air inlet pipe 101, the air is contacted with the activated carbon filter element 2 when passing through the air inlet pipe 101, as the inside of the activated carbon is provided with a developed gap structure and rich micropore tissues, particles in the air can be adsorbed into micropores when the air is contacted with the activated carbon, the effect of the air is filtered, the filtered air enters the collecting cylinder 1, so that the air is conveniently and completely sampled and collected, then the user covers the sealing cover 4 on the air inlet end of the air inlet pipe 101, the sealing gasket 5 is propped against the air inlet end of the air inlet pipe 101, so that the air inlet pipe 101 can be sealed, and meanwhile, when the sealing cover 4 covers the air inlet end of the air inlet pipe 101, the plugging rod 401 passes through the limit rod 3 through the plugging hole 301, at this time, the fixed block 405 is extruded by the limit rod 3 in the process that the plugging rod 401 passes through the plugging hole 301, and then the compression spring 406 is retracted into the groove 402, meanwhile, the fixed block 405 pushes the piston plate 601 to slide in the hollow cavity 6 through the connecting rod 602, external air is sucked through the first conduit 603, the external air contacts with the filter screen 604 when passing through the first conduit 603, the filter screen 604 can filter and separate the particulate matters in the air, then the filtered air enters the hollow cavity 6, then when the clamping assembly moves out of the plugging hole 301, the compressed spring 406 further generates thrust, the limit slider 404 drives the fixed block 405 to slide out of the groove 402, and then the fixed block 405 is clamped on the outer wall surface of the upper side of the limit rod 3, so that the sealing cover 4 can be limited and fixed, at the same time, when the limiting slide block 404 drives the fixed block 405 to slide out of the groove 402, the piston plate 601 moves synchronously along with the limiting slide block 404 through the connecting rod 602, so that gas in the hollow cavity 6 extruded by the piston plate 601 is conveyed into the wrapping air bag 606 through the conduit II 605, one-way valves are arranged on the conduit I603 and the conduit II 605, the wrapping air bag 606 is inflated to tightly fit with the sealing groove 607 on the outer wall of the air inlet pipe 101, the tightness of the air inlet pipe 101 is improved, the mixing of external gas and impurities into the collecting cylinder 1 is effectively avoided, and the accuracy of gas detection is improved.

Example 2:

referring to fig. 1 to 5, a gas collecting device for environmental monitoring is basically the same as that of embodiment 1, and further, a pressure release pipe 7 is fixedly connected to a wrapping airbag 606, a pressure release valve 701 is provided on the pressure release pipe 7, an exhaust pipe 702 is fixedly connected to the pressure release pipe 7, and a valve switch 703 is connected to the exhaust pipe 702.

When the gas collected in the collection cylinder 1 needs to be discharged for detection, firstly, the valve switch 703 is opened, so that the gas in the wrapping airbag 606 is discharged out of the wrapping airbag 606 through the pressure release pipe 7 and the exhaust pipe 702, then the user manually presses the fixing block 405, so that the fixing block 405 is retracted into the groove 402 after being pressed, the spring 406 is compressed until the fixing block 405 is completely retracted into the groove 402, at this time, the user manually moves the sealing cover 4 downwards, the sealing cover 4 drives the clamping assembly to be moved out of the inserting hole 301 in the limit rod 3 through the inserting rod 401, and therefore the sealing cover 4 and the air inlet pipe 101 are conveniently detached, then, the user manually pushes the piston rod 103 to move downwards through the handle 104, the piston rod 103 drives the piston disc 102 to move downwards synchronously, the gas collected in the collection cylinder 1 is discharged out of the collection cylinder 1 through the air inlet pipe 101, and then the gas collected by sampling is detected.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, although the present utility model has been described in the preferred embodiments, and is not limited thereto.

Claims

1. The utility model provides a gas collection device for environmental monitoring, includes a collection section of thick bamboo (1), fixed intercommunication has intake pipe (101) on a collection section of thick bamboo (1), its characterized in that still includes:

a piston disc (102) slidingly connected in the collection cylinder (1) for extracting gas;

the sealing cover (4) is connected to the outer wall of the air inlet pipe (101), a sealing gasket (5) is arranged on the inner wall of the bottom of the sealing cover (4), and the sealing gasket (5) is propped against the air inlet pipe (101);

the two groups of plug-in rods (401) are symmetrically and fixedly connected to the outer walls of the two sides of the air inlet pipe (101), and clamping assemblies for disassembling and assembling the sealing cover (4) and the air inlet pipe (101) are arranged in the plug-in rods (401);

the hollow cavity (6) is formed on the inserting connection rod (401), a piston plate (601) is connected in a sliding mode in the hollow cavity (6), and the piston plate (601) is connected with the clamping assembly through a connecting rod (602);

a first conduit (603) fixedly communicated with the hollow cavity (6);

a wrapping air bag (606) which is arranged on the inner wall of the sealing cover (4) in a surrounding way;

and one end of the second conduit (605) is fixedly communicated with the wrapping air bag (606), the other end of the second conduit is fixedly communicated with the hollow cavity (6), and the outer wall of the air inlet pipe (101) is provided with a sealing groove (607).

2. The gas collecting device for environmental monitoring according to claim 1, wherein the clamping assembly comprises a limit rod (3), the limit rod (3) is fixedly connected to the outer wall of the gas inlet pipe (101), the limit rod (3) is provided with a plug hole (301), the side wall of the plug rod (401) is embedded with a groove (402), a fixing block (405) is slidably connected in the groove (402), a spring (406) is arranged between the fixing block (405) and the groove (402), and the fixing block (405) is clamped on the outer wall surface of the limit rod (3).

3. The gas collecting device for environmental monitoring according to claim 2, wherein the plugging rod (401) is provided with a limiting sliding groove (403), the limiting sliding groove (403) is communicated with the groove (402), a limiting sliding block (404) is slidably connected in the limiting sliding groove (403), the fixing block (405) is fixedly connected to the limiting sliding block (404), the spring (406) is fixedly connected between the limiting sliding block (404) and the groove (402), one end of the connecting rod (602) is fixedly connected with the limiting sliding block (404), and the other end of the connecting rod (602) is fixedly connected with the piston plate (601).

4. The gas collection device for environmental monitoring according to claim 1, wherein a piston rod (103) is fixedly connected to the piston disc (102), and a handle (104) is fixedly connected to one end of the piston rod (103) penetrating through the top of the collection cylinder (1).

5. The gas collecting device for environmental monitoring according to claim 1, wherein an activated carbon filter element (2) is arranged in the collecting cylinder (1), and a filter screen (604) is arranged in the air inlet end of the first conduit (603).

6. The gas collecting device for environmental monitoring according to claim 1, wherein a pressure relief pipe (7) is fixedly communicated with the wrapping airbag (606), a pressure relief valve (701) is arranged on the pressure relief pipe (7), an exhaust pipe (702) is fixedly communicated with the pressure relief pipe (7), and a valve switch (703) is connected to the exhaust pipe (702).