Gas monitoring sampling device

Abstract

The utility model discloses a gas monitoring and sampling device and relates to the technical field of gas sampling. The device comprises a hydraulic cylinder fixed at one end of the top of a shell and a cylinder, a sampling bag is placed in the shell, an air inlet pipe is fixedly arranged at one end of the sampling bag, and one end of the air inlet pipe is fixed on the outer cylindrical surface of the bottom of the cylinder. According to the gas monitoring sampling device, the gas inlet pipe is arranged at one end of the sampling bag and is matched with the hydraulic cylinder, the hydraulic rod, the connecting plate, the pull rod, the piston, the rubber cup and the cylinder to extrude external air into the sampling bag, so that the mode of manually pressing an inflation ball to inflate the sampling bag and complete sampling is replaced, and the gas monitoring sampling device does not need manual sampling; the sampling intensity of workers is reduced, an extrusion plate capable of sliding up and down along a limiting rod in the shell is matched with a limiting hole and a reset spring to extrude and discharge air in the sampling bag, and the exhaust speed is increased while two gases are prevented from being mixed when other gases are collected.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas sampling, in particular to a gas monitoring sampling device. Background Art

[0002] Environmental monitoring refers to the activities of environmental monitoring agencies to monitor and measure environmental quality. Environmental monitoring is to monitor and measure indicators that reflect environmental quality to determine environmental pollution and environmental quality. The content of environmental monitoring mainly includes the monitoring of physical indicators, chemical indicators and ecosystems. In the process of environmental monitoring, gas sampling and analysis at monitoring points is one of the important means to understand air quality and pollution conditions:

[0003] Currently, the direct sampling method is the most efficient. Sampling is completed by pressing the inflatable ball to inflate the sampling bag, which results in a higher sampling intensity for the staff.

[0004] Therefore, the existing gas monitoring sampling devices cannot meet the needs in actual use, so there is an urgent need for improved technologies in the market to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a gas monitoring sampling device, which arranges an air inlet pipe at one end of the sampling bag, and cooperates with a hydraulic cylinder, a hydraulic rod, a connecting plate, a pull rod, a piston, a rubber bowl and a cylinder to squeeze the external air into the sampling bag, instead of manually pressing the inflatable ball to inflate the sampling bag to complete the sampling, thereby solving the problem of manual sampling and high sampling intensity of the staff.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a gas monitoring sampling device, comprising a hydraulic cylinder and a cylinder fixed at one end of the top of an outer shell, and a sampling bag is placed inside the outer shell, one end of the sampling bag is fixedly provided with an air inlet pipe, and one end of the air inlet pipe is fixed to the outer cylindrical surface of the bottom of the cylinder, and a base is fixedly provided at the bottom end of the cylinder, a hydraulic rod is sliding inside the top end of the hydraulic cylinder, and a connecting plate is fixedly provided at the top end of the hydraulic rod, a pull rod is fixedly provided at the bottom of one end of the connecting plate, and a piston is fixedly provided at the bottom end of the pull rod, and a rubber bowl is fixedly provided at the bottom end of the piston, and the piston slides inside the cylinder, and the hydraulic cylinder drives the hydraulic rod to slide up and down along the inside of the hydraulic cylinder through the operation of the hydraulic cylinder, driving the connecting plate and the pull rod to move up and down, and the pull rod moves up and down to drive the piston and the rubber bowl to slide up and down along the cylinder, compressing the external gas into the inside of the air inlet pipe, and entering the sampling bag through the air inlet pipe to complete gas collection.

[0008] Furthermore, four limiting holes are evenly arranged at the four corners of the top of the shell, and limiting rods are slidably arranged inside the four limiting holes. Fixed holes are arranged at both ends of the shell, and the position of the extrusion plate is limited by the limiting holes and the limiting rods to prevent the extrusion plate from shifting during the up and down movement.

[0009] Furthermore, an extrusion plate is fixed at the bottom ends of the four limit rods, and four return springs are evenly fixed at the four corners of the top of the extrusion plate. The top ends of the four return springs are fixed to the inner wall of the top end of the outer shell. During the gas collection process of the sampling bag, the inflation inside the sampling bag will push the extrusion plate up, and the return spring will be contracted by the movement of the extrusion plate. When the gas inside the sampling bag is discharged, the elastic potential energy of the return spring pushes the extrusion plate to move down and squeeze the sampling bag, thereby assisting in emptying the gas inside the sampling bag, preventing the two gases from mixing when collecting other gases, and facilitating increasing the exhaust speed.

[0010] Furthermore, the base is fixed to one end of the shell, and a limiting frame is fixed to the inner wall of the top of the cylinder, so that the position of the cylinder is fixed by the cooperation of the shell and the base.

[0011] Furthermore, the pull rod slides inside the limiting frame, and the limiting frame is convenient for limiting the position of the pull rod to prevent the pull rod from deviating during the up and down movement.

[0012] Furthermore, an air outlet pipe is fixedly provided at the other end of the sampling bag, and a screw cap is movably provided at one end of the air outlet pipe. The air outlet pipe and the air inlet pipe evenly pass through the two fixed holes and extend to both ends of the outer shell. The air outlet pipe facilitates the discharge of gas inside the sampling bag, and the screw cap facilitates the closing and opening of the air outlet pipe.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model arranges an air inlet pipe at one end of the sampling bag, and cooperates with a hydraulic cylinder, a hydraulic rod, a connecting plate, a pull rod, a piston, a rubber bowl and a cylinder to squeeze the external air into the sampling bag, instead of manually pressing the inflatable ball to inflate the sampling bag to complete the sampling. This makes the gas monitoring sampling device unnecessary for manual sampling, thereby reducing the sampling intensity of the staff.

[0015] 2. The utility model uses an extrusion plate that can slide up and down along the limit rod inside the shell, and cooperates with the limit hole and the reset spring to squeeze and discharge the air inside the sampling bag, thereby preventing the two gases from mixing when collecting other gases and increasing the exhaust speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is an exploded view of the shell structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the sampling bag of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 101. Shell; 102. Fixing hole; 103. Hydraulic cylinder; 104. Hydraulic rod; 105. Connecting plate; 106. Pull rod; 107. Piston; 108. Rubber bowl; 109. Limiting hole; 110. Limiting rod; 120. Extrusion plate; 130. Return spring; 201. Cylinder; 202. Air inlet pipe; 203. Sampling bag; 204. Air outlet pipe; 205. Screw cap; 206. Base; 207. Limiting frame. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-3 As shown, the utility model is a gas monitoring sampling device, comprising a hydraulic cylinder 103 and a cylinder 201 fixed to one end of the top of a housing 101, and a sampling bag 203 is placed inside the housing 101, an air inlet pipe 202 is fixed at one end of the sampling bag 203, and one end of the air inlet pipe 202 is fixed to the outer cylindrical surface of the bottom of the cylinder 201, a base 206 is fixed at the bottom of the cylinder 201, a hydraulic rod 104 slides inside the top of the hydraulic cylinder 103, and a connecting plate 105 is fixed at the top of the hydraulic rod 104, and a pull rod 106 is fixed at the bottom of one end of the connecting plate 105, and A piston 107 is fixed at the bottom end of the pull rod 106, and a rubber cup 108 is fixed at the bottom end of the piston 107. The piston 107 slides inside the cylinder 201, and the hydraulic cylinder 103 drives the hydraulic rod 104 to slide up and down along the inside of the hydraulic cylinder 103, driving the connecting plate 105 and the pull rod 106 to move up and down. The up and down movement of the pull rod 106 drives the piston 107 and the rubber cup 108 to slide up and down along the cylinder 201, compressing the external gas into the inside of the air inlet pipe 202, and entering the sampling bag 203 through the air inlet pipe 202 to complete gas collection.

[0023] Among them Figure 1 As shown, four limiting holes 109 are evenly opened at the four corners of the top of the shell 101, and limiting rods 110 are slidably arranged inside the four limiting holes 109. Fixed holes 102 are opened at both ends of the shell 101. The position of the extrusion plate 120 is limited by the combination of the limiting holes 109 and the limiting rods 110 to prevent the extrusion plate 120 from shifting during the up and down movement.

[0024] Among them Figure 2-3As shown, the bottom ends of the four limit rods 110 are fixed with an extrusion plate 120, and four reset springs 130 are evenly fixed at the four corners of the top of the extrusion plate 120. The tops of the four reset springs 130 are fixed to the inner wall of the top of the shell 101. During the gas collection process of the sampling bag 203, the inflation of the sampling bag 203 pushes the extrusion plate 120 to move upward, and the reset springs 130 are pushed to contract by the upward movement of the extrusion plate 120. When the gas inside the sampling bag 203 is discharged, the elastic potential energy of the reset springs 130 pushes the extrusion plate 120 to move downward to squeeze the sampling bag 203, so as to assist in emptying the gas inside the sampling bag 203, prevent the two gases from mixing when collecting other gases, and facilitate increasing the exhaust speed. The base 206 is fixed A limit frame 207 is fixed at one end of the outer shell 101 and is provided on the inner wall of the top of the cylinder 201. The outer shell 101 and the base 206 are used together to fix the position of the cylinder 201. The pull rod 106 slides inside the limit frame 207. The limit frame 207 is convenient for limiting the position of the pull rod 106 to prevent the pull rod 106 from shifting during the up and down movement. An air outlet pipe 204 is fixed at the other end of the sampling bag 203, and a screw cap 205 is movably provided at one end of the air outlet pipe 204. The air outlet pipe 204 and the air inlet pipe 202 evenly pass through the two fixing holes 102 and extend to both ends of the outer shell 101. The air outlet pipe 204 is convenient for the internal gas of the sampling bag 203 to be discharged, and the screw cap 205 is convenient for closing and opening the air outlet pipe 204.

[0025] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. Gas monitoring sampling device, characterized in that: The invention comprises a hydraulic cylinder (103) and a cylinder (201) fixed at one end of the top of an outer shell (101), and a sampling bag (203) is placed inside the outer shell (101), an air inlet pipe (202) is fixedly arranged at one end of the sampling bag (203), and one end of the air inlet pipe (202) is fixedly arranged on the outer cylindrical surface of the bottom of the cylinder (201), a base (206) is fixedly arranged at the bottom end of the cylinder (201), a hydraulic rod (104) slides inside the top end of the hydraulic cylinder (103), and a connecting plate (105) is fixedly arranged at the top end of the hydraulic rod (104), a pull rod (106) is fixedly arranged at the bottom end of one end of the connecting plate (105), and a piston (107) is fixedly arranged at the bottom end of the pull rod (106), and a rubber cup (108) is fixedly arranged at the bottom end of the piston (107), and the piston (107) slides inside the cylinder (201).

2. The gas monitoring sampling device according to claim 1, characterized in that: Four limiting holes (109) are evenly arranged at the four corners of the top of the housing (101), and limiting rods (110) are slidably arranged inside the four limiting holes (109). Fixing holes (102) are arranged at both ends of the housing (101).

3. The gas monitoring sampling device according to claim 2, characterized in that: An extrusion plate (120) is fixedly provided at the bottom ends of the four limiting rods (110), and four return springs (130) are evenly fixedly provided at the four corners of the top end of the extrusion plate (120), and the top ends of the four return springs (130) are fixed to the top inner wall of the housing (101).

4. The gas monitoring sampling device according to claim 1, characterized in that: The base (206) is fixed to one end of the outer shell (101), and a limiting frame (207) is fixedly provided on the inner wall of the top of the cylinder (201).

5. The gas monitoring sampling device according to claim 4, characterized in that: The pull rod (106) slides inside the limiting frame (207).

6. The gas monitoring sampling device according to claim 1, characterized in that: An air outlet pipe (204) is fixedly provided at the other end of the sampling bag (203), and a screw cap (205) is movably provided at one end of the air outlet pipe (204). The air outlet pipe (204) and the air inlet pipe (202) evenly penetrate the two fixing holes (102) and extend to both ends of the outer shell (101).

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