Water body pumping device for environmental water quality detection

Abstract

The utility model relates to a water body pumping device for environmental water quality detection, and belongs to the technical field of environmental detection.The water body pumping device comprises a support, a liquid pumping mechanism is installed on the support, the liquid pumping mechanism comprises a base, a motor, a rotating frame, a hose and a top cover, the base is fixed to the support, and a containing cavity is formed in the base; the motor is arranged at the lower end of the base, and a rotating shaft of the motor is contained in the containing cavity of the base. The disposable built-in water pumping hose is adopted, after sampling is finished every time, the top cover is taken down, then the used hose is taken out, thrown away and replaced with a new hose, during replacement, the extrusion part on one side needs to be taken out in advance, the hose is conveniently and flatly placed in the containing cavity, and then the rotary frame is rotated to enable the extrusion part on the other side to be pressed on the hose, so that sampling is completed. And the just detached extrusion piece is mounted again, so that the next water quality detection precision can be ensured.

Description

Technical Field

[0001] This application relates to the technical field of environmental testing, and in particular to a water extraction device for environmental water quality testing. Background Technology

[0002] In order to protect the water environment, it is necessary to strengthen the monitoring of sewage discharge. Water quality testing plays an important role in environmental protection, water quality detection and water resource protection.

[0003] In existing technologies, water quality testing generally requires sampling, which typically involves using a water pump. However, after use, some water remains inside the pump, making it difficult to clean completely. This directly affects subsequent water quality tests and can also lead to bacterial growth. Bacterial secretions can severely impact the accuracy of subsequent water quality tests. Utility Model Content

[0004] The purpose of this application is to provide a water extraction device for environmental water quality testing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides a water body extraction device for environmental water quality testing, employing the following technical solution:

[0006] An environmental water quality testing water extraction device includes a support frame with a liquid extraction mechanism mounted on it. The liquid extraction mechanism includes a base, a motor, a rotating frame, a hose, and a top cover. The base is fixed to the support frame and has a receiving cavity. The motor is mounted at the lower end of the base, and its shaft is housed within the receiving cavity. The rotating frame is fixed to the motor shaft. The rotating frame has symmetrical mounting slots on both sides, and a pressing component is installed in each slot. The pressing component includes a roller and a connecting block. The roller has a shaft protrusion at both ends, and a recess is provided at the bottom of the mounting slot corresponding to the shaft protrusion. One end of the roller is rotatably connected to the connecting block via the shaft protrusion. The connecting block is fixed to the rotating frame by screws. A hose is arranged around the roller within the receiving cavity, and the roller can press the hose.

[0007] Preferably, in order to better limit the hose within the receiving cavity, quick-connect fittings are connected to both ends of the hose, and a slot is provided on the base corresponding to the position of the quick-connect fitting, so that the quick-connect fitting can be locked in the slot.

[0008] The hose is connected to an outlet pipe and an inlet pipe at both ends, and the inlet pipe is connected to a filter head at its end.

[0009] Preferably, the filter head includes a connector, an inner filter screen, and an outer filter screen. The connector can be inserted into the liquid inlet pipe. The connector has two concentric annular protrusions. The inner filter screen is threaded onto the inner annular protrusion, and the outer filter screen is threaded onto the outer annular protrusion.

[0010] By adopting the above technical solution, the inner and outer filter screens can isolate impurities in the water and prevent them from entering the hose and causing blockage. At the same time, both the inner and outer filter screens are threaded onto the connector, making them easy to disassemble and clean for reuse.

[0011] The inner wall of the top cover is provided with a limiting body protruding downwards at the position corresponding to the hose, and the limiting body can abut against the hose.

[0012] In summary, this application includes at least one of the following beneficial technical effects: the environmental water quality testing water body extraction device uses a disposable built-in water extraction hose. After each sampling, the top cover is removed, the used hose is taken out and discarded, and a new hose is replaced. When replacing, the squeezing component on one side needs to be removed first to make it easier to place the hose flat in the receiving cavity. Then, the rotating frame is rotated to press the squeezing component on the other side onto the hose, and the squeezing component that was just removed is reinstalled, thereby ensuring the accuracy of the next water quality test. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0014] Figure 2 This is an exploded structural diagram illustrating the liquid extraction mechanism in an embodiment of this application.

[0015] Figure 3 This is an exploded view of the filter head in an embodiment of this application.

[0016] Explanation of reference numerals in the attached drawings: 1. Support; 2. Liquid extraction mechanism; 21. Base; 211. Slot; 22. Motor; 23. Rotating frame; 231. Mounting slot; 24. Hoses; 25. Top cover; 26. Extrusion component; 261. Roller; 262. Connecting block; 27. Quick connector; 3. Filter head; 31. Connector; 32. Inner filter screen; 33. Outer filter screen; 4. Liquid outlet pipe; 5. Liquid inlet pipe. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0018] This application discloses a water extraction device for environmental water quality testing, referring to... Figure 1-3The system includes a support 1, on which a liquid extraction mechanism 2 is mounted. The liquid extraction mechanism 2 includes a base 21, a motor 22, a rotating frame 23, a hose 24, and a top cover 25. The base 21 is fixed to the support 1 and has a receiving cavity. The motor 22 is mounted at the lower end of the base 21, and the shaft of the motor 22 is housed within the receiving cavity of the base 21. The rotating frame 23 is fixed to the shaft of the motor 22. The rotating frame 23 has symmetrical mounting grooves 231 on both sides. An extrusion member 26 is installed in the mounting groove 231. The extrusion member 26 includes a roller 261 and a connecting block 262. The roller 261 has shaft protrusions at both ends, and the bottom end of the mounting groove 231 has a recess corresponding to the shaft protrusions. The roller 261 is rotatably connected to the connecting block 262 via a shaft protrusion. The connecting block 262 is fixed to the rotating frame 23 by screws. A hose 24 is provided around the roller 261 in the receiving cavity. The roller 261 can squeeze the hose 24. A limiting body is provided on the inner wall of the top cover 25 corresponding to the position of the hose 24. The limiting body can abut against the hose 24. Quick connectors 27 are connected to both ends of the hose 24. A slot 211 is provided on the base 21 corresponding to the position of the quick connector 27. The quick connector 27 can be locked in the slot 211. An outlet pipe 4 and an inlet pipe 5 are connected to both ends of the hose 24 respectively. The end of the inlet pipe 5 is connected to a filter head 3.

[0019] Reference Figure 3 The filter head 3 includes a connector 31, an inner filter screen 32, and an outer filter screen 33. The connector 31 can be inserted into the liquid inlet pipe 5. The connector 31 has two concentric annular protrusions. The inner filter screen 32 is threaded onto the annular protrusion of the inner ring, and the outer filter screen 33 is threaded onto the annular protrusion of the outer ring.

[0020] The inner filter screen 32 and the outer filter screen 33 can isolate impurities in the water and prevent them from entering the hose 24 and causing blockage. At the same time, the inner filter screen 32 and the outer filter screen 33 are both threadedly connected to the connector 31, which is convenient for disassembly and cleaning for reuse.

[0021] The implementation principle of the water body extraction device for environmental water quality testing in this application embodiment is as follows:

[0022] Motor 22 drives rotating frame 23 to rotate, rotating frame 23 drives roller 261 to move. The outer surface of one roller 261 squeezes the hose 24 to close it. As the rotating frame 23 rotates, the roller 261 will periodically contact the hose 24, creating a negative pressure inside the hose 24. When a section of the hose 24 returns to its original shape, liquid is drawn in from the inlet pipe 5. When the previous roller 261 begins to release, the next roller 261 has already closed the hose 24, and the liquid is pushed out from the outlet pipe 4 by the push of the next roller 261. This cycle repeats, thus continuously delivering liquid (the principle is the same as that of a peristaltic pump).

[0023] After each sampling, remove the top cover 25, then take out and discard the used hose 24, and replace it with a new hose 24. When replacing, first remove the extrusion piece 26 on one side to make it easier to place the hose 24 flat in the receiving cavity. Then rotate the rotating frame 23 to press the extrusion piece 26 on the other side onto the hose 24, and then reinstall the extrusion piece 26 that was just removed. The disassembly and assembly are relatively simple.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water body extraction device for environmental water quality testing, comprising a support (1) and a liquid extraction mechanism (2) mounted on the support (1), characterized in that: The liquid extraction mechanism (2) includes a base (21), a motor (22), a rotating frame (23), a hose (24), and a top cover (25). The base (21) is fixed on the bracket (1), and a receiving cavity is provided inside the base (21). The motor (22) is installed at the lower end of the base (21), and the shaft of the motor (22) is housed in the receiving cavity of the base (21). The rotating frame (23) is fixed on the shaft of the motor (22), and mounting slots (231) are symmetrically opened on both sides of the rotating frame (23). The mounting slots (231) are used to install liquids. The device is equipped with an extrusion component (26), which includes a roller (261) and a connecting block (262). The roller (261) has a shaft protrusion at both ends. The bottom end of the mounting groove (231) is provided with a concave hole corresponding to the position of the shaft protrusion. One end of the roller (261) is rotatably connected to the connecting block (262) via the shaft protrusion. The connecting block (262) is fixed to the rotating frame (23) by screws. A flexible tube (24) is provided in the accommodating cavity around the roller (261). The roller (261) can extrude the flexible tube (24).

2. The water extraction device for environmental water quality testing according to claim 1, characterized in that: The hose (24) is connected to quick connectors (27) at both ends. The base (21) has a slot (211) corresponding to the position of the quick connector (27), and the quick connector (27) can be locked in the slot (211).

3. The water extraction device for environmental water quality testing according to claim 2, characterized in that: The hose (24) is connected to an outlet pipe (4) and an inlet pipe (5) at both ends, and the inlet pipe (5) is connected to a filter head (3) at the end.

4. The water extraction device for environmental water quality testing according to claim 3, characterized in that: The filter head (3) includes a connector (31), an inner filter screen (32), and an outer filter screen (33). The connector (31) can be inserted into the liquid inlet pipe (5). The connector (31) has two concentric annular protrusions. The inner filter screen (32) is threaded onto the annular protrusion of the inner ring, and the outer filter screen (33) is threaded onto the annular protrusion of the outer ring.

5. The water extraction device for environmental water quality testing according to claim 1, characterized in that: The inner wall of the top cover (25) is provided with a limiting body protruding downwards at the position corresponding to the hose (24), and the limiting body can abut against the hose (24).

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