A new type of air bag pump groundwater sampling device
By integrating the design within the bundled pipeline housing, and combining a check valve and an airbag pump, the problems of cumbersome use and contamination associated with airbag pump groundwater samplers are solved, enabling convenient, efficient groundwater sampling and accurate measurement.
Patent Information
- Application Number
- CN202522038726.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
Existing airbag pump groundwater samplers are cumbersome to use, requiring multiple cable windings and exhibiting large errors in water level and temperature measurement. Furthermore, submersible pumps may contaminate the samples.
Design a bundled pipeline sleeve that integrates a water level gauge and a water thermometer. The bundled pipeline sleeve connects to the submersible pump body via water pipes, steel wire ropes, air pipes, and signal lines. Combined with inlet and outlet check valves and a working airbag, the airbag expands and contracts to raise the groundwater level using power provided by the ground host unit.
It enables convenient groundwater sampling, reduces operational steps, improves work efficiency, avoids contamination of submersible pumps, simplifies maintenance, and provides accurate measurements.
Smart Images

Figure CN224681870U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of groundwater well sampling technology, and in particular relates to a novel airbag pump groundwater sampling device. Background Technology
[0002] Electric water samplers are required for groundwater well sampling, but the sealing oil in submersible pump motors may cause petroleum contamination in the samples. Therefore, to avoid submersible pump contamination, airbag pumps are used as the power source for groundwater sampling. Airbag pumps are a type of positive displacement pump that uses changes in the volume of its working chamber to lift the medium, making them suitable for high-head, low-flow-rate applications. Airbag pumps have no dynamic seals in their structure, eliminating the need for lubrication and maintenance, and ensuring that the extracted groundwater samples are free from petroleum contamination.
[0003] Existing airbag pump groundwater samplers are cumbersome to use, requiring the insertion of water pipes, air pipes, and traction ropes into the pump, and the simultaneous release of lines from each reel. Measuring groundwater levels requires a level gauge, which is a separate reel. Measuring water temperature typically involves pumping groundwater back to the surface and placing it in a container, which introduces a certain degree of error. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned technical problems by providing a novel airbag pump groundwater sampling device. This device integrates the functions of a water level gauge and a water thermometer, and combines various pipelines into a single bundled pipeline, offering comprehensive functionality and ease of use.
[0005] In view of this, the present invention provides a novel airbag pump groundwater sampling device, comprising a bundled tubing sleeve, a water pipe penetrating the inner wall of the bundled tubing sleeve, a steel wire rope installed on one side of the water pipe, an air pipe installed on one side of the steel wire rope, a water level sensor signal line installed on one side of the air pipe, a temperature sensor signal line installed on one side of the water level sensor signal line, a lifting lug installed at the bottom end of the steel wire rope, a submersible pump body welded to the bottom end of the lifting lug, a water level sensor body installed at the top end of the submersible pump body, and a connection between the water level sensor signal line and the water level sensor body. A first waterproof plug is provided. A temperature sensor body is provided on one side of the water level sensor body. A second waterproof plug is provided at the connection point between the temperature sensor signal line and the temperature sensor body. An air inlet and outlet is provided on one side of the temperature sensor body, which is connected to the bottom pipe of the air pipe. An outlet is provided on one side of the air inlet and outlet, which is connected to the bottom pipe of the water pipe. A water outlet check valve is connected to the bottom pipe of the water outlet. A working air bladder is fixedly connected to the bottom of the water outlet check valve. An inlet check valve is fixedly connected to the bottom of the working air bladder. A filter screen is installed at the bottom of the submersible pump body.
[0006] Based on the above structure, the submersible pump is powered by a compression pump of the ground host. By blowing and sucking air, the air pressure inside the cavity of the submersible pump body is changed, which causes the air bladder to expand and contract. With the help of the inlet check valve and the outlet check valve, the purpose of lifting groundwater can be achieved. The device is comprehensive in function and small in size. All connections can be quickly plugged in and unplugged, making it more convenient to use on site and improving work efficiency. In addition, the submersible pump body has a simple structure, is easy to maintain, and has no contact pollution.
[0007] Preferably, the bundled pipeline is wrapped with a protective sleeve with a length scale. In this embodiment, this facilitates the display of the placement height of the submersible pump body and improves the working efficiency of the submersible pump body.
[0008] Preferably, the bundled cable sleeve is organized and stored using a winding reel. In this embodiment, the bundled cable sleeve is stored to prevent it from becoming tangled.
[0009] Preferably, the submersible pump body is cylindrical in shape. In this embodiment, setting the submersible pump body to be cylindrical helps to improve the stability of the submersible pump body.
[0010] Preferably, the submersible pump body is divided into upper and lower parts, which are the sensor end and the airbag pump, respectively. In this embodiment, waterproof operation is achieved for the water level sensor body and the temperature sensor body.
[0011] Preferably, the wire rope is connected to the lifting lug using a quick-release D-shaped threaded buckle. In this embodiment, this facilitates quick assembly and disassembly of the wire rope and the lifting lug.
[0012] Preferably, the working airbag has an elliptical cross-section. In this embodiment, by setting a working airbag with an elliptical cross-section, it is convenient to change the air pressure inside the cavity of the submersible pump body by blowing and sucking air, thereby causing the airbag to expand and contract. In conjunction with the inlet check valve and the outlet check valve, the purpose of lifting groundwater can be achieved.
[0013] The beneficial effects of this utility model are: 1. This novel airbag pump groundwater sampling device is powered by a compressor pump of the ground host. By blowing and sucking air, the air pressure inside the cavity of the submersible pump body is changed, which causes the airbag to expand and contract. With the help of the inlet check valve and the outlet check valve, the purpose of lifting groundwater can be achieved. The device is comprehensive in function and small in size. All connections can be quickly plugged in and unplugged, making it more convenient to use on site and improving work efficiency. In addition, the submersible pump body has a simple structure, is easy to maintain, and has no contact pollution. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the overall internal structure of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the bundled pipeline sleeve of this utility model.
[0015] The markings in the diagram are as follows: 1. Bundled tubing sleeve; 101. Submersible pump body; 2. Water pipe; 3. Steel wire rope; 301. Lifting lug; 4. Air pipe; 5. Water level sensor signal line; 501. Water level sensor body; 502. First waterproof plug; 6. Temperature sensor signal line; 601. Temperature sensor body; 602. Second waterproof plug; 7. Air inlet / outlet; 8. Water outlet; 9. Water outlet check valve; 10. Working air bag; 11. Water inlet check valve; 12. Filter screen. Detailed Implementation
[0016] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0017] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0018] This application discloses a novel airbag pump groundwater sampling device, including a bundled pipeline sleeve 1. A water pipe 2 penetrates the inner wall of the bundled pipeline sleeve 1. A steel wire rope 3 is installed on one side of the water pipe 2, and an air pipe 4 is installed on one side of the steel wire rope 3. A water level sensor signal line 5 is installed on one side of the air pipe 4, and a temperature sensor signal line 6 is installed on one side of the water level sensor signal line 5. A lifting lug 301 is installed at the bottom end of the steel wire rope 3, and a submersible pump body 101 is welded to the bottom end of the lifting lug 301. A water level sensor body 501 is installed at the top end of the submersible pump body 101. A first waterproofing is provided at the connection between the water level sensor signal line 5 and the water level sensor body 501. A plug 502 is provided. A temperature sensor body 601 is provided on one side of the water level sensor body 501. A second waterproof plug 602 is provided at the connection point between the temperature sensor signal line 6 and the temperature sensor body 601. An air inlet / outlet 7 is provided on one side of the temperature sensor body 601, which is connected to the bottom pipe of the air pipe 4. An outlet 8 is provided on one side of the air inlet / outlet 7, which is connected to the bottom pipe of the water pipe 2. A water outlet check valve 9 is connected to the bottom pipe of the water outlet 8. A working air bag 10 is fixedly connected to the bottom of the water outlet check valve 9. A water inlet check valve 11 is fixedly connected to the bottom of the working air bag 10. A filter screen 12 is installed at the bottom of the submersible pump body 101.
[0019] Based on the above structure, the power is provided by the compression pump of the ground host. The air pressure inside the cavity of the submersible pump body 101 is changed by blowing and sucking air, which causes the air bag to expand and contract. With the help of the inlet check valve 11 and the outlet check valve 9, the purpose of lifting groundwater can be achieved. The device is comprehensive in function and small in size. All connections can be quickly plugged in and unplugged, making it more convenient to use on site and improving work efficiency. Moreover, the submersible pump body 101 has a simple structure, is easy to maintain and has no contact pollution.
[0020] In one embodiment, the bundled cable sleeve 1 is wrapped with a protective sleeve with a length scale.
[0021] In this embodiment, the placement height of the submersible pump body 101 is easily displayed, thereby improving the working efficiency of the submersible pump body 101.
[0022] In one embodiment, the bundled cable sleeve 1 is organized and stored by a winding reel.
[0023] In this embodiment, the bundled cable sleeve 1 is stored to prevent it from becoming tangled.
[0024] In one embodiment, the submersible pump body 101 is cylindrical in shape.
[0025] In this embodiment, by setting a cylindrical submersible pump body 101, the stability of the submersible pump body 101 is improved.
[0026] In one embodiment, the submersible pump body 101 is divided into upper and lower parts, which are the sensor end and the airbag pump, respectively.
[0027] In this embodiment, waterproofing is achieved for the water level sensor body 501 and the temperature sensor body 601.
[0028] In one embodiment, the wire rope 3 is connected to the lifting lug 301 using a quick-release D-shaped threaded buckle.
[0029] In this embodiment, it is convenient to quickly assemble and disassemble the wire rope 3 and the lifting lug 301.
[0030] In one embodiment, the working airbag 10 has an elliptical cross-section.
[0031] In this embodiment, by setting up a working airbag 10 with an elliptical cross-section, it is convenient to change the air pressure inside the cavity of the submersible pump body 101 by blowing and sucking air, thereby causing the airbag to expand and contract. In conjunction with the inlet check valve 11 and the outlet check valve 9, the purpose of lifting groundwater can be achieved.
[0032] In this embodiment, the novel airbag pump groundwater sampling device is used by first placing the submersible pump body 101 in the groundwater. Then, the compressor pump of the ground host provides power, and the air pressure inside the cavity of the submersible pump body 101 is changed by blowing and sucking air, thereby causing the airbag to expand and contract. With the help of the inlet check valve 11 and the outlet check valve 9, the purpose of lifting groundwater can be achieved. The device is comprehensive in function and small in size. All connections can be quickly plugged in and unplugged, making it more convenient to use on site and improving work efficiency. Moreover, the submersible pump body 101 has a simple structure, is easy to maintain, and has no contact pollution.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A novel airbag pump groundwater sampling device, characterized in that, The system includes a bundled cable sleeve (1), with a water pipe (2) penetrating its inner wall. A steel wire rope (3) is installed on one side of the water pipe (2), and an air pipe (4) is installed on one side of the steel wire rope (3). A water level sensor signal line (5) is installed on one side of the air pipe (4), and a temperature sensor signal line (6) is installed on one side of the water level sensor signal line (5). A lifting lug (301) is installed at the bottom of the steel wire rope (3), and a submersible pump body (101) is welded to the bottom of the lifting lug (301). A water level sensor body (501) is installed at the top of the submersible pump body (101). A first waterproof plug (502) is installed at the connection between the water level sensor signal line (5) and the water level sensor body (501). A temperature sensor body (601) is provided on one side of the position sensor body (501). A second waterproof plug (602) is provided at the connection between the temperature sensor signal line (6) and the temperature sensor body (601). An air inlet (7) is provided on one side of the temperature sensor body (601) and connected to the bottom pipe of the air pipe (4). An outlet (8) is provided on one side of the air inlet (7) and connected to the bottom pipe of the water pipe (2). A water outlet check valve (9) is connected to the bottom pipe of the water outlet (8). A working air bag (10) is fixedly connected to the bottom of the water outlet check valve (9). A water inlet check valve (11) is fixedly connected to the bottom of the working air bag (10). A filter screen (12) is installed at the bottom of the submersible pump body (101).
2. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The bundled pipeline sleeve (1) is wrapped with a protective sleeve with a length scale.
3. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The bundled tubing sleeve (1) is organized and stored by a winding reel.
4. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The submersible pump body (101) is cylindrical in shape.
5. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The submersible pump body (101) is divided into upper and lower parts, which are the sensor end and the airbag pump, respectively.
6. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The steel wire rope (3) is connected to the lifting lug (301) by a quick-release D-shaped threaded buckle.
7. The novel airbag pump groundwater sampling device according to claim 1, characterized in that: The working airbag (10) has an elliptical cross-section.