CN113865950A

CN113865950A - Gas sampling equipment for environmental monitoring

Info

Publication number: CN113865950A
Application number: CN202111126544.9A
Authority: CN
Inventors: 曹宏毅; 许晓霞; 杨继荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of gas sampling, and discloses gas sampling equipment for environmental monitoring, which comprises a barrel, wherein the barrel is of a hollow cuboid structure with an opening on the left side, a sealing plate is integrally formed on the right side in the barrel, an air inlet pipe is integrally formed in the center of the left side of the sealing plate, the right end of the air inlet pipe penetrates through the right side of the sealing plate and is communicated with the inside of the barrel, cavities are symmetrically formed in the sealing plate, communicating ports are symmetrically formed in the right side of the sealing plate, close to the air inlet pipe, and are fixedly communicated with a telescopic air bag, the right ends of the communicating ports are positioned in the barrel, and the left ends of the communicating ports are communicated with the inside of the cavities; when the gas suction device is used, the gas inlet pipe extends to the position of gas collection, and the rotating disc is held by hand to drive the threaded rod in the threaded sleeve to rotate, so that the piston can move rightwards once, and gas can be sucked into the cylinder body through the gas inlet pipe.

Description

Gas sampling equipment for environmental monitoring

Technical Field

The invention relates to the technical field of gas sampling, in particular to gas sampling equipment for environment monitoring.

Background

The gas detector is an instrument tool for detecting gas leakage concentration, which comprises: portable gas detectors, hand-held gas detectors, stationary gas detectors, online gas detectors, and the like. Gas sensors are used to detect the types of gases present in the environment, gas sensors are sensors used to detect the composition and content of gases. It is generally considered that the definition of the gas sensor is based on the classification of the detection object, that is, all sensors for detecting the composition and concentration of gas are called gas sensors, regardless of whether it is a physical method or a chemical method. For example, a sensor for detecting a gas flow rate is not considered as a gas sensor, but a thermal conductivity type gas analyzer is an important gas sensor, and although they sometimes use a generally consistent detection principle, it is often necessary to bring back gas for detection when gas detection is performed in an outdoor environment.

In order to detect and administer the atmospheric environment and need use gas sampling device, current gas sampling device is after gathering gas, can not keep apart the gas after gathering with external environment, makes the gas after gathering mix with external environment easily like this, causes gas sampling device to appear the unsafe problem of sampling result, greatly reduced follow-up gas detection's accuracy, can't judge atmospheric pollution situation in the different time.

Disclosure of Invention

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides a gas sampling device for environmental monitoring, which solves the problems set forth in the background above.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the gas sampling equipment for environmental monitoring comprises a barrel, wherein the barrel is a hollow cuboid structure with an opening at the left side, a sealing plate is integrally formed at the right side in the barrel, an air inlet pipe is integrally formed at the center of the left side of the sealing plate, the right end of the air inlet pipe penetrates through the right side of the sealing plate and is communicated with the inside of the barrel, cavities are symmetrically formed in the sealing plate, communication ports are symmetrically formed at the right side of the sealing plate close to the air inlet pipe, the right end of each communication port is fixedly communicated with a telescopic air bag positioned in the barrel, the left end of each communication port is communicated with the inside of the cavity, springs I are fixedly connected to the opposite sides of the insides of the two cavities, sealing blocks are fixedly connected to the opposite sides of the springs I, and the opposite ends of the two sealing blocks penetrate through the opposite ends of the two cavities respectively, the air inlet pipe is characterized in that the air inlet pipe extends to the inside of the air inlet pipe, a first piston is slidably connected to the inside of the barrel, telescopic frames are fixedly connected between the first piston and the opposite sides of the two telescopic air bags, a connecting port is formed in the right side of the first piston, an annular groove is formed in the outer side wall of the connecting port and located inside the first piston, a threaded sleeve is fixedly connected to the center of the right side of the barrel, a threaded rod is connected to the inner thread of the threaded sleeve and is of a hollow cylindrical structure with two open ends, the right end of the threaded rod penetrates through the right end of the threaded sleeve and is fixedly connected with a rotating disc, the left end of the threaded rod penetrates through the left end of the threaded sleeve and extends to the inside of the barrel, the left end of the threaded rod is located inside the connecting port and is fixedly connected with a connecting block, and the connecting block is rotatably connected with the connecting port, a notch is formed in the connecting block, the interior of the notch is communicated with the interior of the threaded rod, sliding blocks are connected in the notch in a sliding manner, a second spring is fixedly connected between the opposite sides of the two sliding blocks, the opposite sides of the two sliding blocks are fixedly connected with limiting blocks, the back ends of the two limiting blocks respectively penetrate through the upper surface and the lower surface of the connecting block and extend into the annular groove, the annular groove is uniformly connected in a sliding manner, the inner wall of the threaded rod is connected with a second piston in a sliding manner, the right side of the second piston is fixedly connected with a transmission rod, the rear part of the right end of the transmission rod is rotatably connected with an inclined push rod through a rotating shaft, the outer side of the top end of the inclined push rod is rotatably connected with a concave rotating piece through a rotating shaft, and the top of the concave rotating piece is fixedly connected with the upper surface in the threaded rod, the rear end fixedly connected with cylinder of slope push rod, the cylindrical lateral wall rotates and is connected with the cylinder, the left side of rolling disc is located the inside of threaded rod rotates and is connected with the dwang, the left end fixedly connected with transmission post of dwang, the C-shaped groove has been seted up to the lateral wall of transmission post, the cylinder is located the inside in C-shaped groove, and with C-shaped groove sliding connection, the lateral wall of transmission post seted up with the V-arrangement groove that C-shaped groove both ends opening is linked together, the right-hand member of dwang runs through the rolling disc, and extend to the right side of rolling disc, exhaust hole one has been seted up to the right side symmetry of barrel, the lateral wall of threaded rod is close to exhaust hole two has been seted up to rolling disc department symmetry.

Preferably, a handle is fixedly connected to the front surface of the cylinder.

Preferably, the inside right side of barrel is close to exhaust hole a fixedly connected with L shape pole, the left side sliding connection of L shape pole has the push rod, the left end fixedly connected with fixed block of push rod, the right-hand member of push rod passes exhaust hole one is located the right side of barrel, and rotates and be connected with the shutoff piece, the lateral wall cover of push rod is equipped with spring three, spring three both ends respectively with L shape pole with the opposite side fixed connection of fixed block.

Preferably, the lower surface of the cylinder is fixedly connected with an anti-skid pad.

Preferably, the inner wall of the air inlet pipe is symmetrically fixed with a stop block, the filter screen is clamped at the position, close to the right side of the stop block, inside of the air inlet pipe, a first magnetic block is symmetrically fixed on the outer side wall of the air inlet pipe, a U-shaped rod is slidably connected inside the first magnetic block, one end of the U-shaped rod penetrates through the right side of the first magnetic block and is fixedly connected with a second magnetic block, the other end of the U-shaped rod is located on the inner wall of the air inlet pipe and is attached to the left side of the filter screen, and magnetic poles on the opposite sides of the first magnetic block and the second magnetic block repel each other.

Preferably, the inner opposite sides of the two cavities are fixedly connected with sealing rings on the outer side wall of the sealing block.

Preferably, the outer side wall of the sealing block is fixedly connected with an anti-falling block, and the anti-falling block is connected with the cavity in a sliding manner.

Preferably, the outer side wall of the rotating disc is fixedly connected with a sponge pad.

Preferably, the rear end of the roller is provided with a ball in a rolling manner.

Preferably, the right end fixedly connected with connection piece of dwang, the right side fixedly connected with of connection piece rotates the handle.

(III) advantageous effects

The invention provides gas sampling equipment for environment monitoring, which has the following beneficial effects:

(1) when the gas suction device is used, the gas inlet pipe extends to the position of gas collection, the threaded rod in the threaded sleeve is driven to rotate by holding the rotating disc, so that the piston I can move rightwards, gas can be sucked into the cylinder through the gas inlet pipe, and the cavity formed in the sealing plate is communicated with the telescopic air bag through the communication port, so that when the piston I moves rightwards, the telescopic air bag is pulled to stretch rightwards through the stretching of the telescopic frame, the air in the cavity can be sucked into the telescopic air bag through the communication port by the telescopic air bag, the cavity sealing block is influenced by the air pressure and can extend into the gas inlet pipe, and the spring I is in a stretching state at the moment, so that the gas inlet pipe can be sealed and isolated from the outside after a certain amount of gas is sucked, and the problems of subsequent gas mixing, influence on detection and the like are solved.

(2) In the invention, the threaded rod rotates in the connecting port formed in the first piston through the arranged connecting block, the connecting block is internally provided with the sliding block, the second spring and the limiting block through the formed notch, the sliding block can slide in the notch by pushing the second spring to enable the limiting block to extend into the annular groove to slide, so that the threaded rod is rotatably connected with the first piston, when the threaded rod is rotated, the first piston cannot be influenced by rotation, thereby causing the problem that the air tightness is influenced by abrasion of the first piston, and the inner part of the threaded rod is mutually communicated with the inner part of the notch, so that when the rotating rod is rotated to drive the transmission column in the threaded rod to rotate, the inclined push rod can slide in the groove communicated with the C-shaped groove and the V-shaped groove through the arranged cylindrical cylinder and the roller, and can swing left and right along with the rotation of the transmission column through the V-shaped groove, make the transmission post when rotating, cylinder and cylinder when the C inslot slides, the slope push rod can not incline, thereby when rotating the rotation post carelessly, can provide the one end buffering, avoid the mistake to touch and can directly drag two removals of piston, lead to the threaded rod directly to drop from piston one, then control about driving the transfer line, thereby can drag two removals of piston, exhaust through exhaust hole two, two inside atmospheric pressure changes of piston in the threaded rod, thereby can compression spring two, make the stopper deviate from in the ring channel, thereby can be with threaded rod and piston split, conveniently change the part.

(3) When the invention adopts a gas sample, the piston I can compress the cavity on the right side in the cylinder body when moving rightwards under the action of the threaded rod, therefore, the gas can be pushed from the inside of the first exhaust hole to open the first exhaust hole, so that the first exhaust hole is convenient for the movement of the first piston, after the gas is taken out, because the third spring is arranged on the outer side of the push rod and in front of the L-shaped rod and the fixed block, the first exhaust hole is plugged again by the plugging block under the pulling of the third spring, so that the first exhaust hole is prevented from being plugged by impurities such as dust and the like when not in use, on the other hand, the first exhaust hole is blocked, so that the first piston cannot move, when the gas that needs will gather is discharged, rotate between blocking piece and the push rod and be connected for can rotate blocking piece and open exhaust hole one, make the threaded rod can drive the piston and promote left earlier on.

(4) According to the invention, impurities generated during gas collection can be filtered through the arranged filter screen, and the right side of the filter screen is blocked by the stop block in the air inlet pipe, so that the situation that the filter screen is sucked into the cylinder cannot occur under the influence of the air pressure in the cylinder when the piston moves to the right, and the U-shaped rod can abut against the left side of the filter screen through mutual repulsion between the first magnetic block and the second magnetic block, so that the filter screen is not easy to drop out of the air inlet pipe, and the filter screen can be conveniently detached and replaced by pushing the U-shaped rod leftwards.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the connection structure of the inclined push rod, the transmission rod and the roller in the present invention;

FIG. 4 is a schematic view of the connection structure of the driving post and the inclined push rod according to the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 2 according to the present invention.

In the figure: 1. a barrel; 2. closing the plate; 3. an air inlet pipe; 4. a cavity; 5. a communication port; 6. a telescopic air bag; 7. a first spring; 8. a sealing block; 9. a first piston; 10. a telescopic frame; 11. a connecting port; 12. an annular groove; 13. a threaded sleeve; 14. a threaded rod; 15. rotating the disc; 16. connecting blocks; 17. a recess; 18. a slider; 19. a second spring; 20. a limiting block; 21. a second piston; 22. a transmission rod; 23. a cylinder; 24. a drum; 25. rotating the rod; 26. a drive post; 27. a C-shaped groove; 28. a first exhaust hole; 29. a second exhaust hole; 30. a handle; 31. an L-shaped rod; 32. a push rod; 33. a fixed block; 34. a plugging block; 35. a third spring; 36. a stopper; 37. a filter screen; 38. a first magnetic block; 39. a U-shaped rod; 40. a second magnetic block; 41. a seal ring; 42. an anti-drop block; 43. a sponge cushion; 44. a ball bearing; 45. connecting sheets; 46. rotating the grip; 47. a non-slip mat; 48. tilting the push rod; 49. a female rotating member; 50. and a V-shaped groove.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: a gas sampling device for environmental monitoring comprises a barrel body 1, wherein the barrel body 1 is a hollow cuboid structure with an opening at the left side, a sealing plate 2 is integrally formed at the right side in the barrel body 1, an air inlet pipe 3 is integrally formed at the center of the left side of the sealing plate 2, the right end of the air inlet pipe 3 penetrates through the right side of the sealing plate 2 and is communicated with the inside of the barrel body 1, cavities 4 are symmetrically formed in the sealing plate 2, communication ports 5 are symmetrically formed at the positions, close to the air inlet pipe 3, on the right side of the sealing plate 2, the right end of each communication port 5 is positioned in the barrel body 1 and is fixedly communicated with a telescopic air bag 6, the left end of each communication port 5 is communicated with the inside of each cavity 4, springs 7 are fixedly connected to the back sides of the insides of the two cavities 4, sealing blocks 8 are fixedly connected to the opposite sides of the two springs 7, opposite ends of the two sealing blocks 8 respectively penetrate through opposite ends of the two cavities 4 and extend to the inside of the air inlet pipe 3, a first piston 9 is slidably connected inside the cylinder 1, telescopic frames 10 are fixedly connected between the first piston 9 and the opposite sides of the two telescopic airbags 6, a connecting port 11 is formed in the right side of the first piston 9, an annular groove 12 is formed in the outer side wall of the connecting port 11 and positioned inside the first piston 9, a threaded sleeve 13 is fixedly connected to the center of the right side of the cylinder 1, a threaded rod 14 is connected to the internal thread of the threaded sleeve 13, the threaded rod 14 is of a hollow cylindrical structure with two open ends, the right end of the threaded rod 14 penetrates through the right end of the threaded sleeve 13 and is fixedly connected with a rotating disc 15, the left end of the threaded rod 14 penetrates through the left end of the threaded sleeve 13 and extends into the cylinder 1, the left end of the threaded rod 14 is positioned inside the connecting port 11 and is fixedly connected with a connecting block 16, the connecting block 16 is rotatably connected with the connecting port 11, a notch 17 is formed in the connecting block 16, and the inside of the notch 17 is communicated with the inside of the threaded rod 14, the inner part of the notch 17 is connected with a sliding block 18 in a sliding way, a second spring 19 is fixedly connected between the opposite sides of the two sliding blocks 18, the opposite sides of the two sliding blocks 18 are fixedly connected with limiting blocks 20, the back ends of the two limiting blocks 20 respectively penetrate through the upper surface and the lower surface of the connecting block 16 and extend into the annular groove 12, the annular groove 12 is uniformly connected in a sliding way, the inner wall of the threaded rod 14 is connected with a second piston 21 in a sliding way, the right side of the second piston 21 is fixedly connected with a transmission rod 22, the rear part of the right end of the transmission rod 22 is rotatably connected with an inclined push rod 48 through a rotating shaft, the outer side of the top end of the inclined push rod 48 is rotatably connected with a concave rotating piece 49 through a rotating shaft, the top of the concave rotating piece 49 is fixedly connected with the inner upper surface of the threaded rod 14, the rear end of the inclined push rod 48 is fixedly connected with a cylinder 23, the outer side wall of the cylinder 23 is rotatably connected with a roller 24, the left side of the rotating plate 15 is rotatably connected with a rotating rod 25 positioned in the inner part of the threaded rod 14, the left end of the rotating rod 25 is fixedly connected with a transmission column 26, the outer side wall of the transmission column 26 is provided with a C-shaped groove 27, the roller 24 is positioned inside the C-shaped groove 27 and is in sliding connection with the C-shaped groove 27, the outer side wall of the transmission column 26 is provided with a V-shaped groove 50 communicated with openings at two ends of the C-shaped groove 27, the right end of the rotating rod 25 penetrates through the rotating disc 15 and extends to the right side of the rotating disc 15, the right side of the cylinder 1 is symmetrically provided with a first exhaust hole 28, the outer side wall of the threaded rod 14 is symmetrically provided with a second exhaust hole 29 at a position close to the rotating disc 15, when the device is used, the air inlet pipe 3 extends to the position for collecting air, the threaded rod 14 in the threaded sleeve 13 is driven to rotate by holding the rotating disc 15, the air is exhausted through the first exhaust hole 28, so that the piston one 9 can move rightwards, and air can be pumped into the cylinder 1 through the air inlet pipe 3, and because the cavity 4 arranged in the sealing plate 2 is communicated with the telescopic air bag 6 through the communicating port 5, when the first piston 9 moves rightwards, the telescopic air bag 6 is pulled to stretch rightwards through the stretching of the telescopic frame 10, so that the telescopic air bag 6 can suck air in the cavity 4 into the telescopic air bag 6 through the communication port 5, the sealing block 8 of the cavity 4 is influenced by air pressure and can extend into the air inlet pipe 3, at the moment, the first spring 7 is in a stretching state, the air inlet pipe 3 can be sealed after a certain amount of gas is sucked, the air inlet pipe is isolated from the outside, the subsequent gas mixing is prevented, the detection and other problems are influenced, the threaded rod 14 rotates in the connecting port 11 formed in the first piston 9 through the arranged connecting block 16, the sliding block 18, the second spring 19 and the limiting block 20 are arranged in the notch 17 through the arranged connecting block 16, the sliding block 18 can slide in the notch 17 through the pushing of the second spring 19, the limiting block 20 extends into the annular groove 12 to slide, and the threaded rod 14 is rotatably connected with the first piston 9, when the threaded rod 14 is rotated, the first piston 9 cannot be influenced by rotation, so that the first piston 9 is abraded, and the air tightness is influenced, and the inner part of the threaded rod 14 is communicated with the inner part of the notch 17, so that when the rotating rod 25 is rotated to drive the transmission post 26 in the threaded rod 14 to rotate, the inclined push rod 48 can slide in the groove formed by communicating the C-shaped groove 27 with the V-shaped groove 50 through the arranged cylinder 23 and the roller 24, and the inclined push rod 48 can swing left and right along with the rotation of the transmission post 26 through the arranged C-shaped groove 27, when the transmission post 28 rotates, the cylinder 23 and the roller 24 slide in the C-shaped groove 27, the inclined push rod 48 cannot incline, so that when the rotating post 26 is carelessly rotated, a buffer can be provided, the phenomenon that the second piston 21 is directly dragged by mistaken touch is avoided, and the threaded rod 14 directly falls off from the first piston 9 is avoided, then the transmission rod 22 is driven to move left and right, so that the second piston 21 can be dragged to move, the air is exhausted through the second exhaust hole 29, the air pressure in the second piston 21 in the threaded rod 14 is changed, the second spring 19 can be compressed, the limiting block 20 is separated from the annular groove 12, the threaded rod 14 and the first piston 9 can be detached, and parts can be replaced conveniently.

Further, the front surface of the barrel body 1 is fixedly connected with a handle 30, so that the hand-held device is convenient to hold, and the hand-held device is convenient to carry integrally.

Further, an L-shaped rod 31 is fixedly connected to the right side of the inside of the barrel 1, which is close to the first exhaust hole 28, a push rod 32 is slidably connected to the left side of the L-shaped rod 31, a fixed block 33 is fixedly connected to the left end of the push rod 32, the right end of the push rod 32 passes through the first exhaust hole 28 and is located on the right side of the barrel 1, and is rotatably connected with a blocking block 34, a third spring 35 is sleeved on the outer side wall of the push rod 32, two ends of the third spring 35 are fixedly connected to the opposite sides of the L-shaped rod 31 and the fixed block 33 respectively, when a gas sample is taken, the first piston 9 is moved rightwards under the action of the threaded rod 14, a cavity on the right side of the inside of the barrel 1 is compressed, so that gas can push the blocking block 34 from the first exhaust hole 28, the first exhaust hole 28 is opened, and the gas is discharged to facilitate the movement of the first piston 9, after the gas sample is taken, because the third spring 35 is arranged outside of the push rod 32 and in front of the L-shaped rod 31 and the fixed block 33, under the pulling of spring three 35, exhaust hole one 28 can be plugged up again to the shutoff piece 34, and the impurity such as dust stops up exhaust hole one 28 when conveniently preventing not using, causes the influence to the device use, and exhaust hole one 28 is plugged up to on the other hand for piston one 9 can not remove, and when the gas emission that needs will gather, through rotating between shutoff piece 34 and the push rod 32 and being connected, make can rotate shutoff piece 34 and open exhaust hole one 28, make threaded rod 14 can drive piston one 9 and promote left.

Further, the lower surface of the barrel 1 is fixedly connected with the anti-slip mat 47, so that the friction force between the anti-slip mat and the placing surface is increased, the integral stable placing of the device on the placing surface is ensured, and the anti-slip mat is not easy to slip.

Furthermore, a stopper 36 is symmetrically fixed on the inner wall of the air inlet pipe 3, a filter screen 37 is clamped in the air inlet pipe 3 close to the right side of the stopper 36, a first magnetic block 38 is symmetrically fixed on the outer side wall of the air inlet pipe 3, a U-shaped rod 39 is slidably connected inside the first magnetic block 38, one end of the U-shaped rod 39 penetrates through the right side of the first magnetic block 38 and is fixedly connected with a second magnetic block 40, the other end of the U-shaped rod 39 is located on the inner wall of the air inlet pipe 3 and is attached to the left side of the filter screen 37, magnetic poles on the opposite sides of the first magnetic block 38 and the second magnetic block 40 repel each other, impurities generated when gas is collected can be filtered by the arranged filter screen 37, and because the right side of the filter screen 37 is blocked by the stopper 36 in the air inlet pipe 3, when the first piston 9 moves to the right, the filter screen 37 is not drawn into the cylinder 1 under the influence of air pressure inside the cylinder 1, and mutual repulsion between the first magnetic block 38 and the second magnetic block 40 is achieved, make U-shaped pole 39 can support the left side of filter screen 37 for filter screen 37 is difficult for deviating from in the intake pipe 3, and can make things convenient for the dismantlement of filter screen 37 to change through promoting U-shaped pole 39 left.

Further, the sealing rings 41 are fixedly connected to the outer side walls of the sealing blocks 8 at the opposite sides of the inside of the two cavities 4, so that the sealing performance inside the cavities 4 is ensured.

Furthermore, the outer side wall of the sealing block 8 is fixedly connected with an anti-falling block 42, and the anti-falling block 42 is connected with the cavity 4 in a sliding manner to prevent the sealing block 8 from falling off from the anti-falling block 42.

Furthermore, the sponge mat 43 is fixedly connected to the outer side wall of the rotating disc 15, so that the handheld comfort is guaranteed, the slipping is not prone to occurring, and the effect of conveniently holding the rotating disc 15 to rotate is achieved.

Further, the roller 24 is provided with a ball 44 at the rear end thereof for facilitating sliding movement of the roller 24 along the C-shaped groove 27 in the C-shaped groove 27.

Further, the right end fixedly connected with connection piece 45 of dwang 25, the right side fixedly connected with of connection piece 45 rotates handle 46, through handheld rotation handle 46, under the connection effect of connection piece 45, can drive dwang 25 and rotate.

In conclusion, the working process of the invention is as follows: when the device is used, the air inlet pipe 3 extends to the position for collecting gas, the threaded rod 14 in the threaded sleeve 13 is driven to rotate by holding the rotating disc 15, the air is exhausted through the exhaust hole I28, so that the piston I9 can move rightwards, the air can be pumped into the cylinder 1 through the air inlet pipe 3, and the cavity 4 formed in the sealing plate 2 is communicated with the telescopic air bag 6 through the communication port 5, so that when the piston I9 moves rightwards, the telescopic air bag 6 is pulled to stretch rightwards through the stretching of the telescopic frame 10, the telescopic air bag 6 can pump the air in the cavity 4 into the telescopic air bag 6 through the communication port 5, the sealing block 8 of the cavity 4 is influenced by air pressure and can extend into the air inlet pipe 3, at the moment, the spring I7 is in a stretching state, the air inlet pipe 3 can be sealed after a certain amount of gas is pumped, the air inlet pipe is isolated from the outside, and subsequent gas mixing is prevented, influence detection and the like, because the threaded rod 14 rotates in the connecting port 11 formed in the first piston 9 through the arranged connecting block 16, the connecting block 16 is internally provided with a sliding block 18, a second spring 19 and a limiting block 20 through the formed notch 17, the sliding block 18 can slide in the notch 17 through the pushing of the second spring 19, the limiting block 20 extends into the annular groove 12 to slide, thereby the threaded rod 14 is rotatably connected with the first piston 9, when the threaded rod 14 is rotated, the first piston 9 cannot be influenced by rotation, thereby the air tightness is influenced by abrasion of the first piston 9, and because the inside of the threaded rod 14 is communicated with the inside of the notch 17, when the rotating rod 25 is rotated to drive the transmission column 26 in the threaded rod 14 to rotate, the inclined push rod 48 can slide in the groove communicated with the C-shaped groove 27 and the V-shaped groove 50 through the arranged cylinder 23 and the roller 24, through V-arrangement groove 50, make slope push rod 48 can follow transmission post 26 and rotate the time left and right rocking, through the C-arrangement groove 27 that sets up, make transmission post 28 when rotating, when cylinder 23 and cylinder 24 slide in C-arrangement groove 27, slope push rod 48 can not incline, thereby when rotating rotation post 26 carelessly, can provide one section buffering, avoid the mistake to touch and can directly drag piston two 21 and remove, lead to threaded rod 14 directly to drop from piston one 9, then drive transfer line 22 and remove about, thereby can drag piston two 21 and remove, exhaust through exhaust hole two 29, the inside atmospheric pressure of piston two 21 changes in the threaded rod 14, thereby can compress spring two 19, make stopper 20 deviate from in the ring channel 12, thereby can be with threaded rod 14 and piston one 9 split, conveniently change the part.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas sampling equipment for environmental monitoring, includes barrel (1), its characterized in that: the barrel (1) is of a hollow cuboid structure with an opening at the left side, a sealing plate (2) is integrally formed on the right side of the interior of the barrel (1), an air inlet pipe (3) is integrally formed at the center of the left side of the sealing plate (2), the right end of the air inlet pipe (3) penetrates through the right side of the sealing plate (2) and is communicated with the interior of the barrel (1), cavities (4) are symmetrically formed in the interior of the sealing plate (2), communicating ports (5) are symmetrically formed at the positions, close to the air inlet pipe (3), of the right side of the sealing plate (2), the right end of each communicating port (5) is located in the barrel (1) and is fixedly communicated with a telescopic air bag (6), the left end of each communicating port (5) is communicated with the interior of the cavity (4), springs (7) are fixedly connected on the opposite sides of the interiors of the cavities (4), and sealing blocks (8) are fixedly connected on the opposite sides of the springs (7), the opposite ends of the two sealing blocks (8) penetrate through the opposite ends of the two cavities (4) respectively and extend to the inside of the air inlet pipe (3), a first piston (9) is connected to the inside of the barrel (1) in a sliding manner, a telescopic frame (10) is fixedly connected between the first piston (9) and the opposite sides of the two telescopic airbags (6), a connecting port (11) is formed in the right side of the first piston (9), an annular groove (12) is formed in the outer side wall of the connecting port (11) and located inside the first piston (9), a threaded sleeve (13) is fixedly connected to the center of the right side of the barrel (1), a threaded rod (14) is connected to the inside of the threaded sleeve (13) in a threaded manner, the threaded rod (14) is of a hollow cylindrical structure with openings at two ends, and the right end of the threaded rod (14) penetrates through the right end of the threaded sleeve (13), the left end of the threaded rod (14) penetrates through the left end of the threaded sleeve (13) and extends to the inside of the barrel body (1), the left end of the threaded rod (14) is located inside the connecting port (11) and is fixedly connected with a connecting block (16), the connecting block (16) is rotatably connected with the connecting port (11), a notch (17) is formed in the connecting block (16), the inside of the notch (17) is communicated with the inside of the threaded rod (14), a sliding block (18) is slidably connected inside the notch (17), a second spring (19) is fixedly connected between the opposite sides of the two sliding blocks (18), limiting blocks (20) are fixedly connected to the opposite sides of the two sliding blocks (18), and the opposite ends of the two limiting blocks (20) respectively penetrate through the upper surface and the lower surface of the connecting block (16) and extend to the inside of the annular groove (12), and even the ring channel (12) sliding connection, the inner wall sliding connection of threaded rod (14) has piston two (21), the right side fixedly connected with transfer line (22) of piston two (21), the right-hand member rear of transfer line (22) is rotated through the pivot and is connected with slope push rod (48), the top outside of slope push rod (48) is rotated through the pivot and is connected with spill rotation piece (49), the top of spill rotation piece (49) with the inside upper surface fixed connection of threaded rod (14), the rear end fixedly connected with cylinder (23) of slope push rod (48), the lateral wall of cylinder (23) is rotated and is connected with cylinder (24), the left side of rolling disc (15) is located the inside of threaded rod (14) is rotated and is connected with dwang (25), the left end fixedly connected with transmission post (26) of dwang (25), the lateral wall of transmission post (26) has been seted up C-shaped groove (27), cylinder (24) are located the inside in C-shaped groove (27), and with C-shaped groove (27) sliding connection, the lateral wall of transmission post (26) seted up with V-arrangement groove (50) that C-shaped groove (27) both ends opening is linked together, the right-hand member of dwang (25) runs through rolling disc (15), and extend to the right side of rolling disc (15), exhaust hole one (28) have been seted up to the right side symmetry of barrel (1), the lateral wall of threaded rod (14) is close to exhaust hole two (29) have been seted up to rolling disc (15) department symmetry.

2. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the front surface of the barrel body (1) is fixedly connected with a handle (30).

3. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the inside right side of barrel (1) is close to exhaust hole (28) department fixedly connected with L shape pole (31), the left side sliding connection of L shape pole (31) has push rod (32), the left end fixedly connected with fixed block (33) of push rod (32), the right-hand member of push rod (32) is passed exhaust hole (28) are located the right side of barrel (1), and rotate and be connected with shutoff piece (34), the lateral wall cover of push rod (32) is equipped with spring three (35), the both ends of spring three (35) respectively with L shape pole (31) with the opposite side fixed connection of fixed block (33).

4. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the lower surface of the cylinder body (1) is fixedly connected with an anti-slip pad (47).

5. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the inner wall symmetry of intake pipe (3) is fixed with dog (36), the inside of intake pipe (3) is close to the right side department block of dog (36) has filter screen (37), the lateral wall symmetry of intake pipe (3) is fixed with magnetic path one (38), the inside sliding connection of magnetic path one (38) has U-shaped pole (39), the one end of U-shaped pole (39) is run through the right side and the fixedly connected with magnetic path two (40) of magnetic path one (38), the other end of U-shaped pole (39) is located the inner wall of intake pipe (3), and with the left side laminating of filter screen (37) mutually, magnetic path one (38) with the magnetic pole of the opposite side of magnetic path two (40) repels each other.

6. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: and the opposite sides of the inner parts of the two cavities (4) are positioned on the outer side wall of the sealing block (8) and fixedly connected with a sealing ring (41).

7. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the lateral wall fixedly connected with anticreep piece (42) of sealed piece (8), anticreep piece (42) with cavity (4) sliding connection.

8. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the outer side wall of the rotating disc (15) is fixedly connected with a sponge pad (43).

9. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the rear end of the roller (24) is provided with a ball (44) in a rolling way.

10. The gas sampling apparatus for environmental monitoring according to claim 1, wherein: the right end fixedly connected with connection piece (45) of dwang (25), the right side fixedly connected with of connection piece (45) rotates handle (46).