CN214668001U

CN214668001U - Low-concentration smoke sampler

Info

Publication number: CN214668001U
Application number: CN202120971295.2U
Authority: CN
Inventors: 王立娟
Original assignee: Wuhan Kexiang Analysis And Detection Technology Co ltd
Current assignee: Wuhan Kexiang Analysis And Detection Technology Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-11-09
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a low concentration smoke and dust sample thief relates to the sampling device field, does not possess the anti-reflux setting to current low concentration smoke and dust sample thief sample connection, leads to the problem of gas loss easily, presents following scheme now, and it includes the sampling head, the sampling head is the hollow form of toper, just first one end fixedly connected with conveyer pipe of sampling, the conveyer pipe is linked together with the sampling head, just one section fixedly connected with of sampling head gathers the chamber is kept away from to the conveyer pipe, it is linked together with the conveyer pipe to gather the chamber, just conveyer pipe circumference inner wall fixed mounting has anti-reflux mechanism, it has the piston piece to gather chamber circumference inner wall slidable mounting, just the first one end fixedly connected with push rod of sampling is kept away from to the piston piece. The utility model discloses novel structure, and the device can carry out effectively sealedly to the gas that inhales the collection chamber, can effectively prevent the emergence of gas reflux phenomenon, and great improvement the collection efficiency of low concentration smoke and dust, suitable using widely.

Description

Low-concentration smoke sampler

Technical Field

The utility model relates to a sampling device field especially relates to a low concentration smoke and dust sample thief.

Background

Since solid particles suspended in gas formed in the heat of oxidation, sublimation and condensation of evaporation are called smoke, for example, converter flue gas contains a large amount of extremely fine smoke, and a large smoke storm can be rolled up when a heavy wind blows in a severely desertified area.

When the existing low-concentration smoke dust sampler collects low-concentration smoke dust, the collector is large in size, is inconvenient for operators to carry, and a sampling port does not have an anti-backflow setting, so that the problem of gas loss is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low concentration smoke and dust sample thief has solved most low concentration smoke and dust sample thief sample mouths and has not possessed the anti-backflow setting, leads to gas loss's problem easily.

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

the utility model provides a low concentration smoke and dust sample thief, includes the sampling head, the sampling head is the hollow form of toper, just sampling head one end fixedly connected with conveyer pipe, the conveyer pipe is linked together with the sampling head, just one section fixedly connected with of sampling head gathers the chamber is kept away from to the conveyer pipe, it is linked together with the conveyer pipe to gather the chamber, just conveyer pipe circumference inner wall fixed mounting has anti-reflux mechanism, it has the piston piece to gather chamber circumference inner wall slidable mounting, just the piston piece is kept away from sampling head one end fixedly connected with push rod, push rod and piston piece internal fixed mounting have sealing mechanism.

Preferably, the anti-backflow mechanism comprises a limiting block, a connecting rod, a fixed wheel and a movable plate, the fixed wheel is fixedly mounted on the inner wall of the circumference of the conveying pipe, a plurality of slotted holes with the same structure are formed in the fixed wheel, the connecting rod is arranged in the center of the fixed wheel in a penetrating mode, the connecting rod is connected with the fixed wheel in a sliding mode, the connecting rod is close to the limiting block fixedly connected with one end of the sampling head, the movable plate is fixedly connected with the other end of the connecting rod, and a spring is connected between the movable plate and the fixed wheel.

Preferably, the outer end of the conveying pipe is fixedly provided with an air suction valve.

Preferably, sealing mechanism includes dead lever, mounting groove, support column, motor, electric telescopic handle, closing plate, just the piston block is linked together with the push rod and has been seted up the mounting groove, mounting groove circumference lateral wall fixed mounting has a plurality of support columns, and is a plurality of fixedly connected with dead lever between the support column.

Preferably, a motor is fixedly mounted in the fixing rod, the motor is fixedly connected with an electric telescopic rod, and the electric telescopic rod is far away from a sealing plate fixedly connected with one end of the motor.

The utility model has the advantages that:

be equipped with sealing mechanism in the device, drive electric telescopic handle through the motor and stretch out and draw back, drive the closing plate and stretch out and draw back, when closing plate and piston block break away from, can will gather the gas outgoing of intracavity through promoting the push rod, when closing mutually with the mounting groove, can cooperate the suction valve to gather the chamber with low concentration smoke and dust suction.

And the device is internally provided with an anti-backflow mechanism, after the sample body is collected, the suction valve is closed, and when the movable plate has no thrust, the spring drives the movable plate and the connecting rod to reset, so that the phenomena of gas backflow, backflow and the like can be effectively prevented.

To sum up, the device can be effectively sealed the gas of inhaling the collection chamber, can effectively prevent the emergence of gas reflux phenomenon, and great improvement the collection efficiency of low concentration smoke and dust, suitable using widely.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of the anti-reflux mechanism of the present invention;

fig. 4 is an exploded view of the sealing mechanism of the present invention.

Reference numbers in the figures: 1. a sampling head; 2. a delivery pipe; 3. an air intake valve; 4. a limiting block; 5. a connecting rod; 6. a fixed wheel; 7. a movable plate; 8. a collection chamber; 9. a piston block; 10. a sealing plate; 11. a push rod; 12. an electric telescopic rod; 13. a motor; 14. a support pillar; 15. mounting grooves; 16. a spring; 17. and (5) fixing the rod.

Detailed Description

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

Referring to fig. 1-4, a low concentration smoke and dust sample thief, including sampling head 1, sampling head 1 is the hollow form of toper, and 1 one end fixedly connected with conveyer pipe 2 of sampling head, conveyer pipe 2 is linked together with sampling head 1, and conveyer pipe 2 keeps away from 1 one section fixedly connected with of sampling head and gathers chamber 8, it is linked together with conveyer pipe 2 to gather

chamber

8, and 2 circumference inner walls fixed mounting of conveyer pipe has anti-reflux mechanism, gather 8 circumference inner walls slidable mounting in chamber and have piston block 9, and piston block 9 keeps away from 1 one end fixedly connected with push rod 11 of sampling head, fixed mounting has sealing mechanism in push rod 11 and the piston block 9.

The anti-reflux mechanism comprises a limiting block 4, a connecting rod 5, a fixed wheel 6 and a movable plate 7, the fixed wheel 6 is fixedly installed on the inner wall of the circumference of the conveying pipe 2, a plurality of slotted holes with the same structure are formed in the fixed wheel 6, the connecting rod 5 penetrates through the center of the fixed wheel 6 and is in sliding connection with the fixed wheel 6, the limiting block 4 is fixedly connected to one end, close to the sampling head 1, of the connecting rod 5, the movable plate 7 is fixedly connected to the other end of the connecting rod 5, a spring 16 is connected between the movable plate 7 and the fixed wheel 6, an air suction valve 3 is fixedly installed at the outer end of the conveying pipe 2, the sealing mechanism comprises a fixed rod 17, an installation groove 15, supporting columns 14, a motor 13, an electric telescopic rod 12 and a sealing plate 10, the piston block 9 is communicated with the push rod 11 and is provided with the installation groove 15, a plurality of supporting columns 14 are fixedly installed on the circumferential side wall of the installation groove 15, and the fixed rod 17 is fixedly connected among the plurality of supporting columns 14, a motor 13 is fixedly installed in the fixed rod 17, the motor 13 is fixedly connected with an electric telescopic rod 12, one end of the electric telescopic rod 12, which is far away from the motor 13, is fixedly connected with a sealing plate 10, the motor 13 is started, the motor 13 drives the electric telescopic rod 12 to stretch and push the sealing plate 10, the sealing plate 10 is separated from a piston block 9, at the moment, a push rod 11 is pushed, the push rod 11 drives the piston block 9 to push towards one side of the sampling head 1, air in the collection cavity 8 is led out from a mounting groove 15 until the air is pushed to the inner wall of one side of the collection cavity 8, the motor 13 drives the electric telescopic rod 12 to withdraw the sealing plate 10, the sealing plate 10 is attached to the piston block 9, an air suction valve 3 on a conveying pipe 2 is started, the air suction valve 3 sucks low-concentration smoke dust from the sampling head 1, the air enters the conveying pipe 2 to push a movable plate 7 and a connecting rod 4, a spring 16 stretches, after a sample body is collected, the air suction valve 3 is closed, when the movable plate 7 has no thrust, the spring 16 drives the movable plate 7 and the connecting rod 4 to reset, the fixed wheel 6 performs limiting, the movable plate 7 is closed with the conveying pipe 2, and the phenomena of gas backflow and the like can be effectively prevented.

The working principle is as follows: when needs are sampled low concentration smoke and dust, starter motor 13, motor 13 drives electric telescopic handle 12 and stretches out and draws back and promote closing plate 10, closing plate 10 breaks away from with piston block 9, promote push rod 11 this moment, push rod 11 drives piston block 9 and impels to sampling head 1 one side, gather the air in the chamber 8 and derive from mounting groove 15, until pushing away to gather 8 one side inner walls in chamber, motor 13 drives electric telescopic handle 12 and withdraws closing plate 10, closing plate 10 and the laminating of piston block 9.

Start the inspiratory valve 3 on the conveyer pipe 2, the soot of low concentration is inhaled from sampling head 1 to inspiratory valve 3, through conveyer pipe 2, gaseous entering conveyer pipe promotes fly leaf 7 and connecting rod 4, spring 16 stretches, after gathering the appearance body, close inspiratory valve 3, when fly leaf 7 does not have thrust, spring 16 drives fly leaf 7 and connecting rod 4 and resets, tight pulley 6 carries on spacingly, fly leaf 7 is closed mutually with conveyer pipe 2, can effectively prevent the emergence of phenomena such as gas reflux, refluence.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a low concentration smoke and dust sample thief, includes sampling head (1), its characterized in that, sampling head (1) is the hollow form of toper, just sampling head (1) one end fixedly connected with conveyer pipe (2), conveyer pipe (2) are linked together with sampling head (1), just conveyer pipe (2) are kept away from one section fixedly connected with of sampling head (1) and are gathered chamber (8), it is linked together with conveyer pipe (2) to gather chamber (8), just conveyer pipe (2) circumference inner wall fixed mounting has anti-reflux mechanism, it has piston block (9) to gather chamber (8) circumference inner wall slidable mounting, just sampling head (1) one end fixedly connected with push rod (11) are kept away from to piston block (9), push rod (11) and piston block (9) internal fixed mounting have sealing mechanism.

2. The low-concentration smoke sampler according to claim 1, wherein the anti-backflow mechanism comprises a limiting block (4), a connecting rod (5), a fixed wheel (6) and a movable plate (7), the fixed wheel (6) is fixedly mounted on the inner wall of the circumference of the conveying pipe (2), a plurality of slotted holes with the same structure are formed in the fixed wheel (6), the connecting rod (5) penetrates through the center of the fixed wheel (6), the connecting rod (5) is slidably connected with the fixed wheel (6), the limiting block (4) is fixedly connected to one end, close to the sampling head (1), of the connecting rod (5), the movable plate (7) is fixedly connected to the other end of the connecting rod (5), and a spring (16) is connected between the movable plate (7) and the fixed wheel (6).

3. A low concentration smoke sampler according to claim 1 wherein said delivery tube (2) is fixedly mounted at its outer end with an inhalation valve (3).

4. The low-concentration smoke sampler according to claim 1, wherein the sealing mechanism comprises a fixing rod (17), a mounting groove (15), supporting columns (14), a motor (13), an electric telescopic rod (12) and a sealing plate (10), the piston block (9) is communicated with the push rod (11) to form the mounting groove (15), a plurality of supporting columns (14) are fixedly mounted on the circumferential side wall of the mounting groove (15), and the fixing rod (17) is fixedly connected among the supporting columns (14).

5. The low concentration smoke sampler according to claim 4, wherein a motor (13) is fixedly installed in the fixing rod (17), and the motor (13) is fixedly connected with an electric telescopic rod (12), and a sealing plate (10) is fixedly connected to one end of the electric telescopic rod (12) far away from the motor (13).