CN216695762U

CN216695762U - Gas sampling device with good tightness for environment detection

Info

Publication number: CN216695762U
Application number: CN202220070211.2U
Authority: CN
Inventors: 周庆成; 李冲; 梁广洋; 赵陆洋; 肖萍
Original assignee: Shandong Chengzhen Testing Co ltd
Current assignee: Shandong Chengzhen Testing Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-07
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a gas sampling device with good tightness for environment detection, which comprises a box body, wherein a telescopic cylinder is fixedly connected to the top of one side of the box body, a gas collecting pipe is connected in the telescopic cylinder, the gas collecting pipe is connected with a sampling structure, a limiting ring is fixedly connected to the top of one side, away from the telescopic cylinder, of the box body, a clamping groove is formed in the bottom of the limiting ring, a gas collecting bottle is arranged in the clamping groove and connected with a sealing and fixing structure, the sampling structure comprises a gas collecting funnel, the gas collecting funnel is fixedly arranged on the outer side wall of the gas collecting pipe and communicated with the inside of the gas collecting pipe, mutually matched threads are arranged on the outer wall of the gas collecting pipe and the inner wall of the telescopic cylinder, and the gas collecting pipe is in spiral transmission connection with the telescopic cylinder. The gas collection bottle has the advantages that the dual-purpose pump is arranged, so that the gas collection bottle can be exhausted firstly and then collected, and the gas in the gas collection bottle is prevented from being mixed with the external gas to influence the detection result.

Description

Gas sampling device with good tightness for environment detection

Technical Field

The utility model relates to the technical field of gas detection and sampling, in particular to a gas sampling device with good airtightness for environment detection.

Background

The environmental monitoring is to analyze and count the collected information, and perform detailed site monitoring and analysis on the selected evaluation area, and the component detection of the environmental gas is an important component in the environmental detection.

When the environment gas is detected, sampling equipment is needed, but before sampling, air is reserved in the existing sampling device, so that when the pollution area gas is sampled, the air in the device is mixed with the pollution area gas, the accuracy of a detection result is reduced, on the other hand, the environment gas is generally directly sealed through a sealing plug after being collected, and when the sealing plug is assembled and disassembled for a long time, the sealing performance of the sealing plug can be reduced, so that the detection performance is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a gas sampling device with good sealing property for environment detection.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a gas sampling device that leakproofness is good for environmental test, the power distribution box comprises a box body, the flexible section of thick bamboo of one side top fixedly connected with of box, be connected with the discharge in the flexible section of thick bamboo, the discharge is connected with the sample structure, one side top fixedly connected with spacing ring that flexible section of thick bamboo was kept away from to the box, the bottom of spacing ring is provided with the draw-in groove, be provided with the gas collecting bottle in the draw-in groove, the gas collecting bottle is connected with sealed fixed knot and constructs.

Preferably, the sampling structure comprises a gas collecting funnel, the gas collecting funnel is fixedly arranged on the outer side wall of the gas collecting pipe and is communicated with the inside of the gas collecting pipe, the outer wall of the gas collecting pipe and the inner wall of the telescopic cylinder are provided with mutually matched threads, the gas collecting pipe is in spiral transmission connection with the telescopic cylinder, and the part of the box body, which is located right opposite to the gas collecting pipe, is provided with a gas inlet channel.

Preferably, a dual-purpose pump is arranged in the air inlet channel, and the other end of the air inlet channel is communicated with the clamping groove.

Preferably, the sealing and fixing structure comprises a sealing plug clamped at the opening of the gas collecting bottle, a connecting channel is arranged in the sealing plug, a rotating plate is connected with the joint of the connecting channel and the outside in a sealing and rotating manner, a torsional spring is arranged at the rotating joint of the rotating plate and the sealing plug, and the torsional spring is made of a memory metal material.

Preferably, the telescopic cylinder is connected with the top of the box body through a bearing in a rotating mode, a first bevel gear is fixedly connected to the bottom of the telescopic cylinder, a second bevel gear is meshed with the first bevel gear, a rotating rod is fixedly connected to one side, far away from the first bevel gear, of the second bevel gear, and a hand lever is fixedly connected to the rotating rod.

Preferably, the size of the inner diameter of the limiting ring is matched with the outer wall of the gas collecting bottle, the limiting ring is made of rubber materials, and two conductor layers which are electrically connected with each other are arranged at the joint of the bottle opening of the gas collecting bottle and the clamping groove.

Compared with the prior art, the utility model has the advantages that:

1. according to the utility model, the dual-purpose pump is arranged, so that the gas collecting bottle can be exhausted firstly and then collected, and thus, the gas in the gas collecting bottle is prevented from being mixed with the external gas to influence the detection result;

2. according to the utility model, the torsional spring which is electrified and twisted is arranged, so that the connecting channel in the sealing plug of the gas collecting bottle is automatically opened under the action of an external power supply, the exhaust and collection effects are convenient to perform, and meanwhile, the negative pressure self-sealing effect can be realized after the gas collecting bottle leaves the device, so that the problem that the sealing performance is influenced by the repeated use of the sealing plug in the prior art can be avoided;

3. through setting up the discharge and the flexible section of thick bamboo that screw drive connects, can realize adjusting the height of gas collection, can realize carrying out more accurate detection to the environment through collecting the gas to the not co-altitude like this.

Drawings

FIG. 1 is a schematic structural diagram of a gas sampling device with good sealing property for environmental detection according to the present invention;

fig. 2 is an enlarged schematic view of a portion a of the gas sampling device with good sealing property for environmental detection according to the present invention.

In the figure: the device comprises a box body 1, a telescopic cylinder 2, a gas collecting pipe 3, a limiting ring 4, a clamping groove 5, a gas collecting bottle 6, a gas collecting funnel 7, an air inlet channel 8, a dual-purpose pump 9, a sealing plug 10, a connecting channel 11, a rotating plate 12, a first bevel gear 13, a second bevel gear 14, a rotating rod 15 and a conductor layer 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a gaseous sampling device that leakproofness is good for environmental test, including box 1, one side top fixedly connected with telescopic cylinder 2 of box 1, be connected with discharge 3 in the telescopic cylinder 2, discharge 3 is connected with the sample structure, one side top fixedly connected with spacing ring 4 that telescopic cylinder 2 was kept away from to box 1, the bottom of spacing ring 4 is provided with draw-in groove 5, is provided with gas collecting bottle 6 in the draw-in groove 5, and gas collecting bottle 6 is connected with sealed fixed knot and constructs.

Sample structure includes gas collecting funnel 7, gas collecting funnel 7 is fixed to be set up on the lateral wall of gas collecting pipe 3 and link up with gas collecting pipe 3's inside, gas collecting pipe 3's outer wall and telescopic cylinder 2's inner wall are provided with the screw thread of mutually supporting, gas collecting pipe 3 and telescopic cylinder 2 screw drive are connected, can make telescopic cylinder 2 drive gas collecting pipe 3 carry out the displacement of vertical direction through screw drive, box 1 is located gas collecting pipe 3's just right part and has seted up inlet channel 8, be provided with dual-purpose pump 9 among the inlet channel 8, inlet channel 8's the other end and draw-in groove 5 intercommunication, shift gas through inlet channel 8.

The sealing and fixing structure comprises a sealing plug 10 clamped at the opening of the gas collecting bottle 6, a connecting channel 11 is arranged in the sealing plug 10, a rotating plate 12 is connected with the joint of the connecting channel 11 and the outside in a sealing and rotating way, a torsional spring is arranged at the rotating joint of the rotating plate 12 and the sealing plug 10, the torsional spring is made of memory metal materials, the telescopic cylinder 2 is rotatably connected with the top of the box body 1 through a bearing, a first bevel gear 13 is fixedly connected with the bottom of the telescopic cylinder 2, a second bevel gear 14 is meshed with the first bevel gear 13, a rotating rod 15 is fixedly connected with one side, far away from the first bevel gear 13, of the second bevel gear 14, a hand-operated rod is fixedly connected with the rotating rod 15, the inner diameter size of the limiting ring 4 is matched with the outer wall of the gas collecting bottle 6, the limiting ring 4 is made of rubber materials, so that the effect of auxiliary fixing can be achieved on the gas collecting bottle 6, and the gas collecting bottle 6 is stably fixed on the box body 1, two conductor layers 16 which are electrically connected with each other are arranged at the joint of the bottle mouth of the gas collecting bottle 6 and the clamping groove 5.

When the utility model is used, the second bevel gear 14 is rotated by the hand lever to drive the first bevel gear 13 and the telescopic cylinder 2 to rotate, so that the gas collecting pipe 3 is driven to vertically displace in the spiral transmission of the telescopic cylinder 2 and the gas collecting pipe 3, so that the environmental gases with different heights can be collected, when the dual-purpose pump 9 works, the connection between an external power supply and the conductor layer 16 is conducted, so that the torsion spring connected with the rotating plate 12 contracts when being electrified, so that the torsion spring drives the rotating plate 12 to open the connecting channel 11, so that the gas in the gas collecting bottle 6 can be discharged by the dual-purpose pump 9, and the external gas is sucked into the gas collecting bottle 6 to realize the effect of sealed storage, and the utility model has the advantages that the sealing plug 10 does not need to be separated in the collecting state, so that the stability of the sealing plug 10 is kept, and the electrification of the external power supply is removed in the storage state, like this under the recovery effect of torsional spring, keep the sealed of gas collecting bottle, like this when detecting, open sealing plug 10 can, and need not carry out stretching work to the torsional spring, like this when the sample with detect, improved the life of leakproofness and part through the sealed of commentaries on classics board 12 and sealing plug 10 respectively.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the utility model concepts of the present invention in the scope of the present invention.

Claims

1. The utility model provides a gaseous sampling device that leakproofness is good for environmental test, includes box (1), its characterized in that, one side top fixedly connected with telescopic cylinder (2) of box (1), be connected with discharge (3) in telescopic cylinder (2), discharge (3) are connected with the sample structure, one side top fixedly connected with spacing ring (4) of telescopic cylinder (2) are kept away from in box (1), the bottom of spacing ring (4) is provided with draw-in groove (5), be provided with gas collection bottle (6) in draw-in groove (5), gas collection bottle (6) are connected with sealed fixed knot and construct.

2. The gas sampling device with good tightness for environment detection according to claim 1, wherein the sampling structure comprises a gas collecting funnel (7), the gas collecting funnel (7) is fixedly arranged on the outer side wall of the gas collecting pipe (3) and is communicated with the inside of the gas collecting pipe (3), the outer wall of the gas collecting pipe (3) and the inner wall of the telescopic cylinder (2) are provided with mutually matched threads, the gas collecting pipe (3) is in screw transmission connection with the telescopic cylinder (2), and a gas inlet channel (8) is arranged at the part of the box body (1) opposite to the gas collecting pipe (3).

3. The gas sampling device with good tightness for environmental testing according to claim 2, characterized in that a dual-purpose pump (9) is arranged in the gas inlet channel (8), and the other end of the gas inlet channel (8) is communicated with the clamping groove (5).

4. The gas sampling device with good tightness for environmental detection according to claim 1, wherein the sealing and fixing structure comprises a sealing plug (10) clamped at the opening of the gas collecting bottle (6), a connecting channel (11) is formed in the sealing plug (10), a rotating plate (12) is connected to the joint of the connecting channel (11) and the outside in a sealing and rotating manner, a torsion spring is arranged at the rotating joint of the rotating plate (12) and the sealing plug (10), and the torsion spring is made of a memory metal material.

5. The gas sampling device with good tightness for environment detection according to claim 1, characterized in that the telescopic cylinder (2) is rotatably connected with the top of the box body (1) through a bearing, the bottom of the telescopic cylinder (2) is fixedly connected with a first bevel gear (13), the first bevel gear (13) is engaged with a second bevel gear (14), one side of the second bevel gear (14) far away from the first bevel gear (13) is fixedly connected with a rotating rod (15), and the rotating rod (15) is fixedly connected with a hand lever.

6. The gas sampling device with good tightness for environmental detection according to claim 1, wherein the inner diameter of the limiting ring (4) is matched with the outer wall of the gas collection bottle (6), the limiting ring (4) is made of rubber material, and two conductor layers (16) electrically connected with each other are arranged at the joint of the bottle opening of the gas collection bottle (6) and the clamping groove (5).