CN110286006B

CN110286006B - Air detection sampler

Info

Publication number: CN110286006B
Application number: CN201910483068.2A
Authority: CN
Inventors: 程昊; 白大伟; 郝光明
Original assignee: Liuzhou Rusology Nano Material Technology Co ltd; Guangxi University of Science and Technology
Current assignee: Liuzhou Rusology Nano Material Technology Co ltd; Guangxi University of Science and Technology
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2021-08-24
Anticipated expiration: 2039-06-04
Also published as: CN110286006A

Abstract

The invention discloses an air detection sampler, which comprises a base, wherein a sliding support device is arranged on the base, a controller is arranged on the base, an automatic sampling box device is arranged on the base, and an automatic adjusting sampling cylinder device is arranged on the automatic sampling box device; constitute a sample storage section of thick bamboo through two sample sleeve docks, prevent to lead to the sample bag to damage because of external reason, through electric telescopic handle, annular piston and two sample sleeve's cooperation, can be effectual fast clear up sample sleeve's inner wall through annular piston, thereby keep the inside cleanliness of sample sleeve, cooperate with the exhaust piston through exhaust electric telescopic handle, after once taking a sample and finishing, arrange the external environment through the exhaust piston surplus gas in with the sample trachea, thereby guarantee the accurate of air sampling, reduce the error that the sample produced, it is more accurate to make the air sample. The invention has the advantages of simple operation and strong practicability.

Description

Air detection sampler

Technical Field

The invention relates to the field of air detection sampling related equipment, in particular to an air detection sampler.

Background

The air sampler is widely suitable for units such as atmospheric environment monitoring, health epidemic prevention, labor protection, scientific research and the like, and can also be matched with related instruments for use. Through analyzing the sampled gas, the degree of the environment polluted by harmful gas is known, and the actual condition of pollution is provided for relevant departments, so that countermeasures are taken, and the healthy living environment of people is guaranteed.

In patent CN201811051171.1, an air detection sampler, a driving motor works to drive a piston to slide up and down, so as to sample air in an environment to be detected; the buffer device is arranged, so that the buffer effect is achieved when the piston is in contact with the inner side wall of the hollow cylinder and certain extrusion is formed; the device is provided with the insect prevention pipe, and the small winged insects with phototaxis fly into the insect prevention pipe, so that the situation that harmful substances and the small winged insects enter the sampling cylinder to influence the inaccurate detection result of the extracted air is avoided.

The existing air sampler usually uses a sampling bag for sampling, and the sampling bag is easily influenced by external reasons when in use, so that the sampling bag is damaged and wastes.

Disclosure of Invention

The invention aims to solve the problems and designs an air detection sampler.

The technical scheme of the invention is that the air detection sampler comprises a base, wherein a sliding support device is arranged on the base, a controller is arranged on the base, an automatic sampling box device is arranged on the base, and an automatic adjusting sampling cylinder device is arranged on the automatic sampling box device;

the automatic adjustment sampling cylinder device comprises two sampling sleeves, the two sampling sleeves are butted, the butt ends of the two sampling sleeves are internally provided with inner conical surfaces, the butt end of one sampling sleeve is provided with a sealing groove, a rubber sealing gasket is arranged in the sealing groove, the butt end of the other sampling sleeve is provided with an annular sealing boss, the annular sealing boss is movably connected with the sealing groove, two telescopic rod ports are arranged at two ends of the side surface of one sampling sleeve, an electric telescopic rod is arranged in each telescopic rod port, the telescopic end of the electric telescopic rod is fixedly connected with the butt end of the other sampling sleeve, the outer side surface of one sampling sleeve is provided with a storage battery device, one end of the outer side surface of the other sampling sleeve is provided with an external thread, one end of the other sampling sleeve is provided with a conical groove, movable mounting has the toper dog in the bell jar, install the regulation pole on the toper dog, install adjusting plate on the regulation pole, the toroidal support is installed to another sampling sleeve's one end, install ring shape baffle on the toroidal support, ring shape baffle suit is on adjusting the pole, be equipped with compression spring between ring shape baffle and the adjusting plate, ring shape baffle is installed to the inside one end of sampling sleeve, install annular piston on the ring shape baffle, annular piston and sampling sleeve swing joint, connect through the connecting rod between two ring shape baffles.

The storage battery device comprises a storage battery groove formed in the surface of the outer side of one sampling sleeve, a storage battery box is installed in the storage battery groove, a storage battery is installed in the storage battery box, a control switch is arranged on the storage battery box, and a charging interface is arranged on one side of the control switch.

The sliding support device comprises a square sliding frame arranged on the lower surface of the base, sliding support legs are arranged at four corners below the square sliding frame, and universal wheels are arranged on the sliding support legs.

Automatic sampling case device includes surface mounting has the sampling case on the base, sampling case internally mounted has the sleeve of bleeding, the sleeve internally mounted of bleeding has the piston of bleeding, install flexible post on the piston lower surface of bleeding, flexible post and the sleeve movable sealing connection of bleeding, install the electric telescopic handle of bleeding on the sampling case lower surface, electric telescopic handle's flexible end and flexible post fixed connection bleed, bleed sleeve upper surface center department installs and bleed into the pipe, bleed and install one-way pneumatic valve one on advancing the pipe, bleed into the pipe upper end and install the drum that admits air, it has a plurality of air inlets to open on the drum outside surface of admitting air, air inlet evenly distributed is on the drum that admits air, gas storage device is installed to bleed sleeve upper surface one side.

The gas storage device comprises an air exhaust sleeve upper surface one side is provided with an air outlet pipe, an one-way air valve II is installed on the air outlet pipe, a sampling air pipe is installed at one end of the air outlet pipe, an exhaust electromagnetic valve is installed at the upper end of the sampling air pipe, a plurality of sampling branch pipes are installed on the sampling air pipe, sampling electromagnetic valves are installed on the sampling branch pipes, threaded grooves are formed in the inner surface of one end of each sampling branch pipe, annular sealing gaskets are installed inside the threaded grooves, the sampling branch pipes are fixed with the sampling sleeve through threaded connection of the threaded grooves and external threads, exhaust pistons are arranged inside the sampling air pipe, exhaust telescopic columns are installed below the exhaust pistons, exhaust electric telescopic rods are installed below the inner portions of sampling boxes, and the telescopic ends of the exhaust electric telescopic columns are fixedly connected with the exhaust telescopic columns.

The sampling air pipe extends out of the sampling box.

The air inlet cylinder is positioned outside the sampling box.

And a gas discharge pipe is arranged on one sampling sleeve, and an exhaust valve is arranged on the gas discharge pipe.

The air detection sampler manufactured by the technical scheme of the invention forms a sampling storage cylinder by butting two sampling sleeves, effectively prevents the sampling bag from being damaged due to external reasons, thereby reducing the waste caused by air sampling, and through the matching of the electric telescopic rod, the annular piston and the two sampling sleeves, so that the inner wall of the sampling sleeve can be quickly and effectively cleaned through the annular piston after the sampling sleeve is used, thereby keeping the cleanness inside the sampling sleeve, reducing the accuracy of air sampling caused by external reasons, matching the exhaust electric telescopic rod with the exhaust piston, after the primary sampling is finished, the residual gas in the sampling gas pipe is discharged to the external environment through the exhaust piston, therefore, the accuracy of air sampling is guaranteed, errors generated by sampling are reduced, and the air sampling is more accurate.

Drawings

FIG. 1 is a schematic diagram of an air detection sampler according to the present invention;

FIG. 2 is a schematic view of the self-adjusting cartridge assembly of the present invention;

FIG. 3 is a schematic view of a seal groove according to the present invention;

FIG. 4 is a schematic view of the annular seal boss of the present invention;

in the figure, 1, a base; 2. a controller; 3. a sampling sleeve; 4. sealing the groove; 5. a rubber gasket; 6. an annular sealing boss; 7. an expansion link port; 8. an electric telescopic rod; 9. an external thread; 10. a tapered groove; 11. a conical stopper; 12. adjusting a rod; 13. adjusting the baffle; 14. an annular support; 15. a circular baffle plate; 16. a compression spring; 17. an annular baffle; 18. an annular piston; 19. a connecting rod; 20. a storage battery groove; 21. a battery case; 22. a storage battery; 23. a control switch; 24. a charging interface; 25. a square sliding rack; 26. a sliding leg; 27. a universal wheel; 28. a sampling box; 29. an air extraction sleeve; 30. an air extraction piston; 31. a telescopic column; 32. an electric telescopic rod for air suction; 33. an air suction inlet pipe; 34. a one-way air valve I; 35. an air intake cylinder; 36. an air inlet; 37. an air outlet pipe; 38. a one-way air valve II; 39. sampling the trachea; 40. an exhaust solenoid valve; 41. sampling branch pipes; 42. a sampling solenoid valve; 43. a threaded groove; 44. an annular seal; 45. an exhaust piston; 46. an exhaust telescopic column; 47. an exhaust electric telescopic rod; 48. a gas discharge pipe; 49. and (4) exhausting the valve.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in FIGS. 1-4, in this embodiment:

in this device, the device supplies power through being connected with external power source, external power source through with controller 2, air exhaust electric telescopic handle 32, exhaust solenoid valve 40, the power incoming end electric connection of sampling solenoid valve 42 and exhaust electric telescopic handle 47 supplies power, controller 2's model is the PLC controller of FX1N-10MR MT model, controller 2's control signal output part and exhaust solenoid valve 40, sampling solenoid valve 42's signal incoming end electric connection, controller 2's control signal output part passes through relay and air exhaust electric telescopic handle 32, exhaust electric telescopic handle 47 electric connection, battery 22 is connected with outside charging device through the interface that charges and is charged, battery 22's power output part is through remaining electric telescopic handle 8 electric connection of control switch 23, thereby controlling means moves.

The invention is characterized in that the structural design of the automatic adjustment sampling cylinder device is combined with an attached drawing 1, an attached drawing 2, an attached drawing 3 and an attached drawing 4, the automatic adjustment sampling cylinder device comprises two sampling sleeves 3, the two sampling sleeves 3 are butted, the butt joint ends of the two sampling sleeves 3 are internally provided with inner conical surfaces, the butt joint end of one sampling sleeve 3 is provided with a sealing groove 4, a rubber sealing gasket 5 is arranged in the sealing groove 4, the butt joint end of the other sampling sleeve 3 is provided with an annular sealing boss 6, the annular sealing boss 6 is movably connected with the sealing groove 4, two telescopic rod openings 7 are arranged at two ends of the side surface of one sampling sleeve 3, an electric telescopic rod 8 is arranged in each telescopic rod opening 7, the telescopic end of the electric telescopic rod 8 is fixedly connected with the butt joint end of the other sampling sleeve 3, and a storage battery groove 20 is arranged on the outer side surface of one sampling sleeve 3, a storage battery box 21 is arranged in the storage battery groove 20, a storage battery 22 is arranged in the storage battery box 21, a control switch 23 is arranged on the storage battery box 21, a charging interface 24 is arranged on one side of the control switch 23, an external thread 9 is arranged at one end of the outer side surface of another sampling sleeve 3, a tapered groove 10 is arranged at one end of the other sampling sleeve 3, a tapered stop 11 is movably arranged in the tapered groove 10, an adjusting rod 12 is arranged on the tapered stop 11, an adjusting baffle 13 is arranged on the adjusting rod 12, an annular bracket 14 is arranged at one end of the other sampling sleeve 3, an annular baffle 15 is arranged on the annular bracket 14, the annular baffle 15 is sleeved on the adjusting rod 12, a compression spring 16 is arranged between the annular baffle 15 and the adjusting baffle 13, an annular baffle 17 is arranged at one end inside the sampling sleeve 3, an annular piston 18 is arranged on the annular baffle 17, and the annular piston 18 is movably connected with the sampling sleeve 3, the two annular baffles 17 are connected through a connecting rod 19, a gas discharge pipe 48 is arranged on one sampling sleeve 3, and a vent valve 49 is arranged on the gas discharge pipe 48; constitute a sample storage cylinder through two sample sleeve 3 butt joints, effectually prevent to lead to the emergence that the sample bag damaged because of the external reason, thereby the waste that the air sampling produced has been reduced, through electric telescopic handle 8, annular piston 18 and two sample sleeve 3's cooperation, thereby make sample sleeve 3 use the back that finishes, can be effectual fast clear up sample sleeve 3's inner wall through annular piston 18, thereby keep the inside cleanliness of sample sleeve 3, reduce the degree of accuracy that leads to the air sampling because of the external reason, it is more accurate to make the air sampling.

The invention is characterized in that the automatic sampling box device comprises a sampling box 28 arranged on the upper surface of a base 1, an air extracting sleeve 29 arranged inside the sampling box 28, an air extracting piston 30 arranged inside the air extracting sleeve 29, a telescopic column 31 arranged on the lower surface of the air extracting piston 30, the telescopic column 31 and the air extracting sleeve 29 are movably and hermetically connected, an air extracting electric telescopic rod 32 arranged on the lower surface of the sampling box 28, a telescopic end of the air extracting electric telescopic rod 32 is fixedly connected with the telescopic column 31, an air extracting inlet pipe 33 arranged at the center of the upper surface of the air extracting sleeve 29, a one-way air valve 34 arranged on the air extracting inlet pipe 33, an air inlet cylinder 35 arranged at the upper end of the air extracting inlet pipe 33, a plurality of air inlets 36 arranged on the outer surface of the air inlet cylinder 35, the air inlets 36 evenly distributed on the air inlet cylinder 35, and an air outlet pipe 37 arranged on one side of the upper surface of the air extracting sleeve 29, the gas outlet pipe 37 is provided with a one-way gas valve II 38, one end of the gas outlet pipe 38 is provided with a sampling gas pipe 39, the upper end of the sampling gas pipe 39 is provided with an exhaust solenoid valve 40, the sampling gas pipe 39 is provided with a plurality of sampling branch pipes 41, the sampling branch pipes 41 are provided with sampling solenoid valves 42, the inner surface of one end of each sampling branch pipe 41 is provided with a threaded groove 43, the interior of each threaded groove 43 is provided with an annular sealing gasket 44, the sampling branch pipes 41 and the sampling sleeve 3 are fixedly connected through the threaded grooves 43 and the external threads 9, the interior of the sampling gas pipe 39 is provided with an exhaust piston 45, an exhaust telescopic column 46 is arranged below the exhaust piston 45, an exhaust electric telescopic rod 47 is arranged below the interior of the sampling box 28, and the telescopic end of the exhaust electric telescopic rod 47 is fixedly connected with the exhaust telescopic column 46; through the cooperation of exhaust electric telescopic handle 47 and exhaust piston 45, after once taking a sample and finishing, discharge the external environment through exhaust piston 45 with the surplus gas in the sample trachea 39 to guarantee the accurate of air sampling, reduce the error that the sample produced.

In this device, the sliding support device enables the device to be moved simply and quickly by the universal wheels 27, thereby facilitating the movement of the device and saving the sampling time.

The working principle of the device is as follows: when air needs to be sampled, the device is moved to a sampling place, then the device is connected with an external power supply, meanwhile, a worker manually installs the sampling sleeve 3 on the sampling branch pipe 41, fixes the sampling sleeve through the threaded connection of the external thread 9 and the threaded groove 43, seals the sampling sleeve through the annular sealing gasket 44, installs an air pump on the base 1, is connected with the gas discharge pipe 48 through the air pump, opens the exhaust valve 49, performs air extraction, and accordingly extracts the air in the sampling sleeve 3;

at this time, the air-extracting electric telescopic rod 32 is controlled to start working, the air-extracting electric telescopic rod 32 drives the air-extracting piston 30 to start descending through the telescopic column 31 by contraction, negative pressure is generated inside the air-extracting sleeve 29 along with the descending of the air-extracting piston 30, the air-extracting sleeve 29 starts to absorb air to the outside through the air-extracting inlet pipe 33, the air-extracting inlet pipe 33 absorbs air through an air inlet 36 on the air inlet cylinder 35, the air is absorbed into the air-extracting sleeve 29, the air is primarily filtered through the air inlet cylinder 35, and impurities such as plastic bags and the like in the outside air are prevented from;

when the air-extracting electric telescopic rod 32 is contracted to a certain degree, the air-extracting electric telescopic rod 32 is controlled to extend out, along with the extension of the air-extracting electric telescopic rod 32, air enters the sampling air pipe 39 through the air outlet pipe 37 under the action of the one-way air valve I34 and the one-way air valve II 38, and after the air enters the sampling air pipe 39, the air is pushed into the air-extracting branch pipe 41 along with the rising of the air-extracting piston 30;

at this time, one of the sampling electromagnetic valves 42 is opened, the air pressure in the sampling air pipe 39 and the sampling branch pipe 41 rises along with the ascending of the air-extracting piston 30, the conical stop block 11 is pushed to start moving by the acting force of the air pressure, so that the conical stop block 11 is separated from the conical groove 10, and the air enters the two sampling sleeves 3;

after the air extraction piston 30 rises to the highest point, the air exhaust electromagnetic valve 40 is controlled to be opened, the air exhaust electric telescopic rod 47 is controlled to start working, the air exhaust electric telescopic rod 47 drives the air exhaust piston 45 to move through expansion and contraction, so that residual air in the sampling air pipe 39 is discharged to the external environment, meanwhile, negative pressure is generated in the sampling air pipe 39 along with the rising of the air exhaust piston 45, and therefore the conical stop block 11 and the conical groove 10 are sealed through air pressure in the sampling sleeve 3, elasticity of a compression spring and negative pressure in the sampling air pipe 39, so that gas is stored in the sampling sleeve 3;

after sampling, connecting the gas discharge pipe 48 with the gas inlet pipe of the air detection device, so that gas is discharged into the air detection device for detection through the gas pressure inside the sampling sleeve 3;

after finishing when gas release, the staff is through pressing control switch 34, electric telescopic handle 8 begins work this moment, electric telescopic handle 8 is through stretching out, make two sampling sleeve 3 separations, sampling sleeve 3's inner wall is through the sliding connection with annular piston 18 simultaneously, clear up sampling sleeve 3's inside, after electric telescopic handle 8 stretches out completely, the shrinkage of sub-range is carried out to the electric telescopic handle 8 of controlling again, the staff alright clean sampling sleeve 3 through manual this moment, clean the back that finishes, the electric telescopic handle 8 of controlling again contracts, make two sampling sleeve 3 through sealed recess 4, rubber packing pad 5 and annular seal boss 6 seal up, alright reuse.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. An air detection sampler comprises a base (1), wherein a sliding support device is arranged on the base (1), and a controller (2) is arranged on the base (1), and is characterized in that an automatic sampling box device is arranged on the base (1), and an automatic adjusting sampling cylinder device is arranged on the automatic sampling box device;

the automatic adjusting sampling cylinder device comprises two sampling sleeves (3), the two sampling sleeves (3) are butted, the butt joint ends of the two sampling sleeves (3) are internally arranged to be inner conical surfaces, a sealing groove (4) is formed in the butt joint end of one sampling sleeve (3), a rubber sealing gasket (5) is installed in the sealing groove (4), an annular sealing boss (6) is installed at the butt joint end of the other sampling sleeve (3), the annular sealing boss (6) is movably connected with the sealing groove (4), two telescopic rod openings (7) are formed in two ends of the side surface of one sampling sleeve (3), an electric telescopic rod (8) is installed in each telescopic rod opening (7), the telescopic end of the electric telescopic rod (8) is fixedly connected with the butt joint end of the other sampling sleeve (3), and a storage battery device is arranged on the surface of the outer side of one sampling sleeve (3), the utility model discloses a sampling sleeve, including adjusting rod (12), ring support (14), ring baffle (15), outer surface one end of another sampling sleeve (3) is opened there is external screw thread (9), the one end of another sampling sleeve (3) is opened there is bell mouth (10), movable mounting has toper dog (11) in bell mouth (10), install on toper dog (11) and adjust pole (12), install adjusting baffle (13) on adjusting pole (12), ring support (14) are installed to the one end of another sampling sleeve (3), install ring baffle (15) on ring support (14), ring baffle (15) suit is on adjusting pole (12), be equipped with compression spring (16) between ring baffle (15) and adjusting baffle (13), ring baffle (17) are installed respectively to the inside one end of two sampling sleeves (3), install annular piston (18) on ring baffle (17), the annular piston (18) is movably connected with the sampling sleeve (3), and the two annular baffles (17) are connected through a connecting rod (19).

2. An air detection sampler according to claim 1, characterized in that the accumulator unit comprises one of the sampling sleeves (3) and a storage battery groove (20) is formed in the outer surface of the one sampling sleeve, a storage battery box (21) is installed in the storage battery groove (20), a storage battery (22) is installed in the storage battery box (21), a control switch (23) is arranged on the storage battery box (21), and a charging interface (24) is arranged on one side of the control switch (23).

3. An air detection sampler according to claim 1 wherein the sliding support means comprises a square sliding frame (25) mounted on the lower surface of the base (1), sliding legs (26) mounted at four corners below the square sliding frame (25), and universal wheels (27) mounted on the sliding legs (26).

4. The air detection sampler according to claim 1, wherein the automatic sampling box device comprises a sampling box (28) mounted on the upper surface of the base (1), an air extraction sleeve (29) mounted inside the sampling box (28), an air extraction piston (30) mounted inside the air extraction sleeve (29), a telescopic column (31) mounted on the lower surface of the air extraction piston (30), the telescopic column (31) is movably and hermetically connected with the air extraction sleeve (29), an air extraction electric telescopic rod (32) is mounted on the lower surface of the sampling box (28), the telescopic end of the air extraction electric telescopic rod (32) is fixedly connected with the telescopic column (31), an air extraction inlet pipe (33) is mounted at the center of the upper surface of the air extraction sleeve (29), a one-way air valve I (34) is mounted on the air extraction inlet pipe (33), and an air inlet cylinder (35) is mounted at the upper end of the air extraction inlet pipe (33), a plurality of air inlets (36) are formed in the outer side surface of the air inlet cylinder (35), the air inlets (36) are uniformly distributed on the air inlet cylinder (35), and one side of the upper surface of the air exhaust sleeve (29) is provided with an air storage device.

5. The air detection sampler according to claim 4, wherein the gas storage device comprises an air exhaust pipe (37) mounted on one side of the upper surface of the air exhaust sleeve (29), a one-way air valve II (38) mounted on the air exhaust pipe (37), a sampling air pipe (39) mounted at one end of the air exhaust pipe (37), an exhaust solenoid valve (40) mounted at the upper end of the sampling air pipe (39), a plurality of sampling branch pipes (41) mounted on the sampling air pipe (39), a sampling solenoid valve (42) mounted on each sampling branch pipe (41), a threaded groove (43) arranged on the inner surface of one end of each sampling branch pipe (41), an annular sealing gasket (44) mounted inside each threaded groove (43), and the sampling branch pipes (41) and the sampling sleeve (3) are fixed through threaded connection of the threaded grooves (43) and the external threads (9), sample trachea (39) inside is equipped with exhaust piston (45), exhaust telescopic column (46) are installed to exhaust piston (45) below, sample case (28) inside below is installed exhaust electric telescopic handle (47), the flexible end and the flexible post (46) fixed connection of exhaust electric telescopic handle (47).

6. An air detection sampler as claimed in claim 5 wherein the sampling air tube (39) extends outside the sampling chamber (28).

7. An air detection sampler as claimed in claim 4 in which the air intake cylinder (35) is located outside the sampling chamber (28).

8. An air detection sampler according to claim 1 wherein a gas discharge tube (48) is provided in one of the sampling sleeves (3), the gas discharge tube (48) having a vent valve (49) mounted thereon.