CN113074989A

CN113074989A - Pressure-sensing self-sampling type sampling device for environment detection

Info

Publication number: CN113074989A
Application number: CN202110186005.8A
Authority: CN
Inventors: 姜黎平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-13
Filing date: 2021-02-13
Publication date: 2021-07-06

Abstract

The invention discloses a pressure-sensing self-sampling type sampling device for environment detection, which belongs to the technical field of environment detection, and can be used for directly putting the device into water when sampling is realized, after the device sinks to the sampling depth, a hole plug can be automatically separated from a sampling hole, so that water can flow into a sampling box through the sampling hole to carry out sampling, the upper water can be effectively prevented from flowing into the sampling box in the sinking process of the device, the sampling accuracy can be effectively improved, the accuracy of a detection result is further improved, the hole plug can be automatically reinserted into the sampling hole along with the inflow of the water, the upper water can be effectively prevented from flowing into the sampling box when the device is pulled upwards after the sampling is finished, the accuracy of the detection result can be further improved, and the initial distance between a pipe piston block and a linkage vertical rod can be adjusted by rotating an adjusting connecting pipe to adapt to the sampling of water bodies with different depths, the practicability is greatly improved.

Description

Pressure-sensing self-sampling type sampling device for environment detection

Technical Field

The invention relates to the technical field of environment detection, in particular to a pressure-sensitive self-sampling type sampling device for environment detection.

Background

The water quality environment detection is a process for monitoring and measuring the types of pollutants in a water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition. The detection range is very wide, and the detection range comprises uncontaminated and contaminated natural water (rivers, lakes, seas and underground water), various industrial drainage and the like. The main detection items can be divided into two main categories: one is a comprehensive index reflecting the water quality conditions, such as temperature, chroma, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand and the like; the other is some toxic substances, such as phenol, cyanogen, arsenic, lead, chromium, cadmium, mercury, organic pesticides and the like. In order to objectively evaluate the water quality of rivers and oceans, it is sometimes necessary to measure the flow velocity and flow rate in addition to the above-mentioned items of detection.

When examining quality of water, need sample the water, the water of the different degree of depth in same waters, its quality of water situation is different, so need sample, detect being in the different degree of depth water usually, and current sampling device is when sampling the deep water, and the cartridge is easily carried out to the water of top, can lead to the sampling not accurate enough to influence the accuracy of testing result. Therefore, we propose a pressure-sensitive self-sampling type sampling device for environmental detection.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to solve the problems in the prior art, and provides a pressure-sensitive self-sampling type sampling device for environment detection, which can be used for directly putting the device into water during sampling, wherein a hole plug can automatically separate from a sampling hole after the device sinks to the sampling depth, so that water can flow into the sampling box through the sampling hole to be sampled, the upper layer of water can be effectively prevented from flowing into the sampling box during the sinking process of the device, the accuracy of the detection result can be effectively improved, the hole plug can be automatically reinserted into the sampling hole along with the inflow of the water, the water above the sampling box can be effectively prevented from flowing into the sampling box when the device is pulled upwards after the sampling is finished, the accuracy of the detection result can be further improved, and the initial distance between a pipe piston block and a linkage vertical rod can be adjusted by rotating a connecting pipe to adapt to the sampling of water bodies at different depths, the practicability is greatly improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A pressure-sensing self-sampling type sampling device for environment detection comprises a gas storage ball shell and a sampling box arranged above the gas storage ball shell, wherein two elastic pressure sensing sheets which are symmetrically arranged are embedded and installed on the gas storage ball shell, the top end of the gas storage ball shell is communicated with an adjusting connecting pipe, a pipe piston block matched with the adjusting connecting pipe is arranged in the adjusting connecting pipe, the bottom end of the pipe piston block is fixedly connected with an elastic pull rope, the adjusting connecting pipe penetrates through the outer wall of the bottom of the sampling box and extends into the sampling box, the adjusting connecting pipe is in threaded connection with the outer wall of the bottom of the sampling box, a box piston plate matched with the sampling box is arranged in the sampling box, the bottom end of the box piston plate is fixedly connected with a linkage vertical rod, the bottom end of the linkage vertical rod extends into the pipe piston block, the top end of the box piston plate is fixedly connected with two driving racks which are symmetrically arranged, be provided with assorted stopple with it in the sampling hole, rotate on the inner wall of sampling box back one side and be connected with the linkage pivot that two symmetries set up, fixed cover is equipped with driven gear on the outer wall of linkage pivot, the one end fixedly connected with linkage disc of linkage pivot, the positive one side fixedly connected with eccentric rod of linkage disc, two fixedly connected with support slide rails on the top inner wall of sampling box, sliding connection has the push-and-pull rod on the support slide rail, set up on the push-and-pull rod with linkage disc assorted linkage groove, one side fixedly connected with connecting rod of push-and-pull rod.

Furthermore, the air is filled in the air storage ball shell, the elastic pressure sensing pressing piece is made of elastic metal sheet materials or elastic rubber materials, after the device is placed into water, the water can generate certain pressure on the elastic pressure sensing pressing piece, the elastic pressure sensing pressing piece is enabled to be inwards sunken, the air in the air storage ball shell can be extruded by the sunken elastic pressure sensing pressing piece, the air upwards pushes the pipe piston block, the pipe piston block is driven to upwards move, the pressure of the water on the elastic pressure sensing pressing piece is in direct proportion to the depth, namely the inwards sunken degree of the elastic pressure sensing pressing piece is larger along with the sinking of the device, and the upwards moving distance of the pipe piston block is larger.

Furthermore, the end of the elastic pull rope, which is far away from the pipe piston block, is fixedly connected with the inner wall of the bottom of the gas storage ball shell, and the elastic pull rope can play a role in pulling the pipe piston block when the device is not placed in water, so that the pipe piston block is prevented from moving upwards.

Further, equal fixedly connected with bracing piece on the inner wall of sampling case both sides, the bracing piece sets up to the L font, and the one end and the case piston plate of bracing piece offset, and the bracing piece can play a supporting role to case piston plate.

Further, case piston plate and sampling case sliding connection, pipe piston piece and adjusting connection pipe sliding connection, driven gear sets up in the one side that corresponding hole stopper was kept away from to the drive rack, and the lifting rope meshes with the drive rack mutually, and pipe piston piece rebound to the back that offsets with the linkage montant, and the accessible linkage montant upwards pushes up and moves case piston plate to drive the drive rack and upwards move, and then drive the linkage disc and rotate.

Furthermore, the eccentric rod is arranged at a position far away from the center of the linkage disc and close to the edge of the linkage disc, the eccentric rod penetrates through the linkage groove and is in sliding connection with the linkage groove, one end of the connecting rod far away from the push-pull rod is fixedly connected with the hole plug, when the linkage disc is driven to rotate by the upward movement of the driving rack, the rotation of the linkage disc can enable the eccentric rod to drive the push-pull rod to slide, so that the hole plug is driven to slide towards the sampling box, the hole plug is separated from the sampling hole, water can flow into the sampling box through the sampling hole, sampling is carried out, the gravity borne by the box piston plate is increased along with the inflow of the water, when the gravity of the water is larger than the upward jacking force provided by the pipe piston block, the box piston plate can automatically move downwards, so that the hole plug is driven to be re-inserted into the sampling hole, and when the upward pull-back device is completed during sampling, the water above can be, thereby improving the sampling accuracy.

Furthermore, the support slide rail is I-shaped, a C-shaped slide groove matched with the support slide rail is formed in one end of the push-pull rod, and the push-pull rod is connected with the support slide rail in a sliding mode through the C-shaped slide groove, so that the support slide rail not only can play a role in guiding and preventing the push-pull rod from deflecting, but also can play a role in supporting the push-pull rod and prevent the push-pull rod from falling.

Further, equal fixedly connected with stopper on the outer wall of sampling case both sides, the stopper sets up in the top of case piston plate, and the stopper can play a limiting action, and the stroke of the rebound of restriction case piston plate can prevent on the one hand that the eccentric bar turned angle is too big, and on the other hand can prevent that push-and-pull rod and support the slide rail and break away from.

Further, the top fixedly connected with jib of sampling box, the top fixedly connected with lifting rope of jib can be convenient for put into the device aquatic and take out the device from the aquatic.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is when the sampling, can directly drop into the aquatic with the device, the device sinks to the sampling degree of depth after, the hole stopper can break away from with the sampling hole automatically, make water can flow into the sampling box through the sampling hole, thereby sample, can effectively prevent the device in-process that sinks, the sampling box is gone into to the rivers on upper strata, and then can effectively improve the accuracy of testing result, and along with the inflow of water, the hole stopper can insert the sampling hole again automatically, and then when upwards pulling back the device in the sampling completion, can effectively avoid the rivers of top to flow into the sampling box, thereby can further improve the accuracy of testing result, and the accessible rotates the regulation connecting pipe, initial distance between governing pipe piston piece and the linkage montant, come to adapt to the sampling of the different degree of depth waters, the practicality has been improved greatly.

(2) The air is filled in the air storage ball shell, the elastic sensing pressing piece is made of elastic metal sheet materials or elastic rubber materials, after the device is placed into water, water can generate certain pressure on the elastic sensing pressing piece, the elastic sensing pressing piece is enabled to be inwards sunken, the sunken part of the elastic sensing pressing piece can extrude the air in the air storage ball shell, the air upwards pushes the pipe piston block, and therefore the pipe piston block is driven to upwards move, the pressure of the water on the elastic sensing pressing piece is in direct proportion to the depth, namely along with the sinking of the device, the larger the inwards sunken degree of the elastic sensing pressing piece is, and the larger the upwards moving distance of the pipe piston block is.

(3) One end of the elastic pull rope, which is far away from the pipe piston block, is fixedly connected with the inner wall of the bottom of the gas storage ball shell, and the elastic pull rope can play a role in pulling the pipe piston block when the device is not placed in water, so that the pipe piston block is prevented from moving upwards.

(4) Equal fixedly connected with bracing piece on the inner wall of sampling case both sides, the bracing piece sets up to the L font, and the one end and the case piston plate of bracing piece offset, and the bracing piece can play a supporting role to case piston plate.

(5) Case piston plate and sampling case sliding connection, pipe piston piece and adjusting connection pipe sliding connection, driven gear set up in the one side that corresponds the stopple is kept away from to the drive rack, and lifting rope and drive rack mesh mutually, and pipe piston piece rebound to with the linkage montant offset the back, the case piston plate is upwards pushed up to the accessible linkage montant to drive the drive rack and upwards move, and then drive the linkage disc and rotate.

(6) The eccentric rod is arranged at a position far away from the center of the linkage disc and close to the edge of the linkage disc, the eccentric rod penetrates through the linkage groove and is in sliding connection with the linkage groove, one end of the connecting rod far away from the push-pull rod is fixedly connected with the hole plug, when the driving rack moves upwards to drive the linkage disc to rotate, the rotation of the linkage disc can enable the eccentric rod to drive the push-pull rod to slide, so that the hole plug is driven to slide into the sampling box, the hole plug is separated from the sampling hole, water can flow into the sampling box through the sampling hole, sampling is carried out, the gravity borne by the box piston plate is increased along with the inflow of the water, when the gravity of the water is greater than the upward jacking force provided by the pipe piston block, the box piston plate can automatically move downwards, so that the hole plug is driven to be re-inserted into the sampling hole, and when the upward pull-back device is completed in sampling, the water above, thereby improving the sampling accuracy.

(7) The support slide rail sets up to the I-shaped, and the one end of push-and-pull rod is seted up and is supported slide rail assorted C font spout, and the push-and-pull rod passes through C font spout and support slide rail sliding connection for support the slide rail and not only can play a direction to the push-and-pull rod and prevent partially effect, and can play a supporting role to the push-and-pull rod, prevent that the push-and-pull rod from weighing down.

(8) Equal fixedly connected with stopper on the outer wall of sampling case both sides, the stopper sets up in the top of case piston plate, and the stopper can play a limiting action, and the stroke of the rebound of restriction case piston plate can prevent on the one hand that eccentric bar turned angle is too big, and on the other hand can prevent that push-and-pull rod and support slide rail break away from.

(9) The top fixedly connected with jib of sampling box, the top fixedly connected with lifting rope of jib can be convenient for put into the device aquatic and take out the device from the aquatic.

(10) Adjust the bottom outer wall threaded connection of connecting pipe and sampling box, before throwing the device into aquatic and sampling, the accessible is just, the connecting pipe is adjusted in the reverse rotation, make and adjust the relative sampling box of connecting pipe, move down, thereby adjust initial distance between linkage montant and the pipe piston piece, when initial distance between linkage montant and the pipe piston piece increases, pipe piston piece need improve the distance of rebound, just enable the hole stopper and break away from the sampling hole, and the distance of pipe piston piece rebound is directly proportional with the depth of water, therefore, the connecting pipe is adjusted in the accessible rotation, adjust the initial distance between pipe piston piece and the linkage montant, be adapted to the sampling of the different degree of depth water, and the practicality is greatly improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the shell of the gas storage balloon of the present invention;

FIG. 3 is a schematic sectional view of a sampling box according to the present invention;

FIG. 4 is a side view of the linkage disk of the present invention;

FIG. 5 is a schematic side view of the cross-sectional structure of the support rail of the present invention;

FIG. 6 is a schematic view of the structure of the elastic pressure-sensing piece of the present invention when it is depressed inwards.

The reference numbers in the figures illustrate:

101. a gas storage sphere shell; 102. an elastic pressure-sensitive sheet; 103. adjusting the connecting pipe; 104. a tube piston block; 105. an elastic pull rope; 201. a sampling box; 202. a case piston plate; 203. a support bar; 204. linking the vertical rods; 205. a drive rack; 206. a linkage rotating shaft; 207. a driven gear; 208. a linkage disc; 209. an eccentric rod; 210. supporting the slide rail; 211. a push-pull rod; 212. a connecting rod; 213. a sampling hole; 214. a hole plug; 215. a linkage groove; 216. a boom; 217. a lifting rope; 218. and a limiting block.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-6, a pressure-sensing self-sampling type sampling device for environmental detection comprises an air storage spherical shell 101 and a sampling box 201 disposed above the air storage spherical shell 101, wherein two elastic pressure-sensing pieces 102 symmetrically disposed are embedded in the air storage spherical shell 101, the top end of the air storage spherical shell 101 is communicated with an adjusting connecting pipe 103, a pipe piston block 104 matched with the adjusting connecting pipe 103 is disposed in the adjusting connecting pipe 103, air is filled in the air storage spherical shell 101, the elastic pressure-sensing pieces 102 are made of elastic metal sheet material or elastic rubber material, when the device is placed in water, water generates a certain pressure on the elastic pressure-sensing pieces 102, so that the elastic pressure-sensing pieces 102 are recessed inwards, the air in the air storage spherical shell 101 is squeezed by the depression of the elastic pressure-sensing pieces 102, the air pushes the pipe piston block 104 upwards, thereby driving the pipe piston block 104 to move upwards, and the pressure of the water on the elastic pressure-sensing pieces 102 is proportional to the, that is, along with the sinking of the device, the greater the inward sinking degree of the elastic pressure sensing sheet 102, the greater the upward moving distance of the tube piston block 104, the elastic pulling rope 105 is fixedly connected to the bottom end of the tube piston block 104, one end of the elastic pulling rope 105, which is far away from the tube piston block 104, is fixedly connected to the inner wall of the bottom of the gas storage ball shell 101, and the elastic pulling rope 105 can play a role in pulling the tube piston block 104 when the device is not placed in water, so as to prevent the tube piston block 104 from moving upward.

Referring to fig. 3-6, the adjusting connection tube 103 penetrates through the outer wall of the bottom of the sampling box 201 and extends into the sampling box 201, the adjusting connection tube 103 is connected with the outer wall of the bottom of the sampling box 201 by screw threads, a box piston plate 202 is disposed in the sampling box 201 and is matched with the sampling box 201, support rods 203 are fixedly connected to the inner walls of the two sides of the sampling box 201, the support rods 203 are L-shaped, one end of each support rod 203 abuts against the box piston plate 202, the support rods 203 can support the box piston plate 202, a linkage vertical rod 204 is fixedly connected to the bottom end of the box piston plate 202, the bottom end of the linkage vertical rod 204 extends into the tube piston block 104, two symmetrically disposed driving racks 205 are fixedly connected to the top end of the box piston plate 202, sampling holes 213 are disposed on the outer walls of the two sides of the sampling box 201, hole plugs 214 are disposed in the sampling holes 213, two symmetrically disposed linkage rotating shafts 206 are rotatably connected, a driven gear 207 is fixedly sleeved on the outer wall of the linkage rotating shaft 206, one end of the linkage rotating shaft 206 is fixedly connected with a linkage disc 208, one side of the front surface of the linkage disc 208 is fixedly connected with an eccentric rod 209, the inner wall of the top end of the sampling box 201 is fixedly connected with two supporting slide rails 210, the supporting slide rails 210 are slidably connected with a push-pull rod 211, the push-pull rod 211 is provided with a linkage groove 215 matched with the linkage disc 208, one side of the push-pull rod 211 is fixedly connected with a connecting rod 212, the box piston plate 202 is slidably connected with the sampling box 201, the pipe piston block 104 is slidably connected with the adjusting connecting pipe 103, the driven gear 207 is arranged on one side of the driving rack 205 far away from the corresponding hole plug 214, a lifting rope 217 is meshed with the driving rack 205, after the pipe piston block 104 moves upwards to abut against the linkage vertical rod 204, the box piston plate 202, and then drive the linkage disc 208 to rotate, the eccentric rod 209 is set up in the position far away from the centre of a circle of the linkage disc 208 and close to the edge of the linkage disc 208, the eccentric rod 209 runs through the linkage slot 215 and is connected with the linkage slot 215 in a sliding manner, the end of the connecting rod 212 far away from the push-pull rod 211 is fixedly connected with the hole plug 214, when the driving rack 205 moves upwards to drive the linkage disc 208 to rotate, the rotation of the linkage disc 208 can make the eccentric rod 209 drive the push-pull rod 211 to slide, thereby drive the hole plug 214 to slide towards the sampling box 201, and further make the hole plug 214 separate from the sampling hole 213, so that water can flow into the sampling box 201 through the sampling hole 213, thereby sampling, and along with the inflow of water, the gravity of water borne by the box piston plate 202 will not increase continuously, when the gravity of water is greater than the upward jacking force provided by the pipe piston block 104, the box piston plate 202 will automatically move downwards, thereby, when the sampling is finished and the device is pulled back upwards, the water above the sampling box 201 can be effectively prevented from flowing into the sampling box 201, so that the sampling accuracy can be improved, the support slide rail 210 is in an I shape, one end of the push-pull rod 211 is provided with a C-shaped slide groove matched with the support slide rail 210, the push-pull rod 211 is in sliding connection with the support slide rail 210 through the C-shaped slide groove, so that the support slide rail 210 not only can play a role in guiding and preventing the push-pull rod 211 from deviating, but also can play a role in supporting the push-pull rod 211 to prevent the push-pull rod 211 from falling down, the outer walls at the two sides of the sampling box 201 are fixedly connected with limit blocks 218, the limit blocks 218 are arranged above the box piston plate 202, the limit blocks 218 can play a role in limiting the upwards moving stroke of the box piston plate 202, on one hand, the eccentric rod 209 can be prevented from rotating, the top fixedly connected with jib 216 of sampling case 201, the top fixedly connected with lifting rope 217 of jib 216 can be convenient for put into the water and take out the device from the water.

Because the bottom outer wall threaded connection who adjusts connecting pipe 103 and sampling box 201, before putting into the device and sampling in aqueous, the accessible is just, reverse rotation adjusts connecting pipe 103, make and adjust connecting pipe 103 relative sampling box 201, move down, thereby adjust initial distance between linkage montant 204 and the pipe piston piece 104, when initial distance between linkage montant 204 and the pipe piston piece 104 increases, pipe piston piece 104 need improve the distance of upwards moving, just enable hole stopper 214 and break away from sampling hole 213, and the distance that pipe piston piece 104 upwards moved is directly proportional with the depth of water, therefore, the accessible rotates and adjusts connecting pipe 103, adjust the initial distance between pipe piston piece 104 and the linkage montant 204, be adapted to the sampling of the different degree of depth waters, and the practicality is greatly improved.

According to the invention, during sampling, the device can be directly put into water, after the device sinks to the sampling depth, the hole plug 214 can be automatically separated from the sampling hole 213, so that water can flow into the sampling box 201 through the sampling hole 213, thereby sampling, and the device can be effectively prevented from flowing into the sampling box 201 from the upper layer in the sinking process, so that the accuracy of the detection result can be effectively improved, and along with the inflow of water, the hole plug 214 can be automatically reinserted into the sampling hole 213, so that when the device is pulled back upwards after sampling is completed, the water above can be effectively prevented from flowing into the sampling box 201, thereby further improving the accuracy of the detection result, and the initial distance between the adjusting pipe piston block 104 and the linkage vertical rod 204 can be adjusted by rotating the adjusting connecting pipe 103, so as to adapt to the sampling of water bodies with different depths, thereby greatly improving the practicability.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a pressure sensing is from adopting formula sampling device for environmental detection, includes gas storage spherical shell (101) and sets up in sampling box (201) of gas storage spherical shell (101) top, its characterized in that: the gas storage ball shell (101) is embedded with two elastic pressure sensing sheets (102) which are symmetrically arranged, the top end of the gas storage ball shell (101) is communicated with an adjusting connecting pipe (103), a pipe piston block (104) which is matched with the adjusting connecting pipe is arranged in the adjusting connecting pipe (103), the bottom end of the pipe piston block (104) is fixedly connected with an elastic pull rope (105), the adjusting connecting pipe (103) penetrates through the outer wall of the bottom of a sampling box (201) and extends into the sampling box (201), the adjusting connecting pipe (103) is in threaded connection with the outer wall of the bottom of the sampling box (201), a box piston plate (202) which is matched with the adjusting connecting pipe is arranged in the sampling box (201), the bottom end of the box piston plate (202) is fixedly connected with a linkage vertical rod (204), the bottom end of the linkage vertical rod (204) extends into the pipe piston block (104), and the top end of the box piston plate (202) is fixedly connected with two, the outer walls of the two sides of the sampling box (201) are both provided with sampling holes (213), hole plugs (214) matched with the sampling holes (213) are arranged in the sampling holes (213), the inner wall of one side of the back of the sampling box (201) is rotatably connected with two linkage rotating shafts (206) which are symmetrically arranged, a driven gear (207) is fixedly sleeved on the outer wall of the linkage rotating shaft (206), one end of the linkage rotating shaft (206) is fixedly connected with a linkage disc (208), an eccentric rod (209) is fixedly connected with one side of the front surface of the linkage disc (208), two supporting slide rails (210) are fixedly connected on the inner wall of the top end of the sampling box (201), the supporting slide rail (210) is connected with a push-pull rod (211) in a sliding mode, a linkage groove (215) matched with the linkage disc (208) is formed in the push-pull rod (211), and a connecting rod (212) is fixedly connected to one side of the push-pull rod (211).

2. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: the air storage ball shell (101) is filled with air, and the elastic pressure sensing sheet (102) is made of elastic metal sheet materials or elastic rubber materials.

3. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: one end of the elastic pull rope (105) far away from the pipe piston block (104) is fixedly connected with the inner wall of the bottom of the gas storage ball shell (101).

4. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: equal fixedly connected with bracing piece (203) on the inner wall of sampling case (201) both sides, bracing piece (203) set up to the L font, and the one end and the case piston plate (202) of bracing piece (203) offset.

5. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: the box piston plate (202) is connected with the sampling box (201) in a sliding mode, and the pipe piston block (104) is connected with the adjusting connecting pipe (103) in a sliding mode.

6. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: the driven gear (207) is arranged on one side, away from the corresponding hole plug (214), of the driving rack (205), and the lifting rope (217) is meshed with the driving rack (205).

7. The pressure-sensitive self-sampling environment-detecting sampling device according to claim 6, characterized in that: the eccentric rod (209) is arranged at a position far away from the center of the linkage disc (208) and close to the edge of the linkage disc (208), the eccentric rod (209) penetrates through the linkage groove (215) and is in sliding connection with the linkage groove (215), and one end, far away from the push-pull rod (211), of the connecting rod (212) is fixedly connected with the hole plug (214).

8. The pressure-sensitive self-sampling environment-detecting sampling device according to claim 7, characterized in that: the supporting slide rail (210) is I-shaped, a C-shaped sliding groove matched with the supporting slide rail (210) is formed in one end of the push-pull rod (211), and the push-pull rod (211) is connected with the supporting slide rail (210) in a sliding mode through the C-shaped sliding groove.

9. The pressure-sensitive self-sampling environment-detecting sampling device according to claim 8, characterized in that: equal fixedly connected with stopper (218) on the outer wall of sampling case (201) both sides, stopper (218) set up in the top of case piston plate (202).

10. The pressure-sensitive self-sampling type sampling device for environmental inspection according to claim 1, characterized in that: the top fixedly connected with jib (216) of sampling case (201), the top fixedly connected with lifting rope (217) of jib (216).