Flow velocity regulator for underground water sampling

Abstract

The utility model relates to the technical field of underground water detection, in particular to a flow velocity regulator for underground water sampling. Comprising a flow velocity regulator, a display screen, a flow velocity switch, a flow velocity regulating knob, an electrifying module, a power supply inlet and a submersible pump connector, the display screen is fixedly connected with the flow velocity regulator and located on the flow velocity regulator, and the flow velocity switch and the flow velocity regulating knob are both arranged at the front end of the flow velocity regulator; through the arrangement of the structure, the real-time flow of the sampling pump can be controlled, different flow velocity requirements can be met, and water sample detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater detection, in particular to a flow rate regulator for groundwater sampling. Background Technique

[0002] Groundwater sampling is an important task in the fields of environmental monitoring, hydrogeological research, water resource management, etc. The existing sampling method using a bailer tube is adopted.

[0003] At present, the requirements for the flow rate and flow volume of the water pump are naturally different under different working conditions of well washing and sampling. Therefore, the flow control of the well washing and sampling pump is crucial.

[0004] However, the existing device cannot control the real-time flow rate of the sampling pump, cannot adapt to different flow rate requirements, and has low practicability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flow rate regulator for groundwater sampling, aiming to solve the technical problems that the existing device cannot control the real-time flow rate of the sampling pump, cannot adapt to different flow rate requirements, and has low practicability.

[0006] To achieve the above purpose, a flow rate regulator for groundwater sampling adopted by the utility model includes a flow rate regulator, a display screen, a flow rate switch, a flow rate adjustment knob, a power-on module, a power inlet, and a submersible pump connector. The display screen is fixedly connected to the flow rate regulator and is located on the flow rate regulator. The flow rate switch and the flow rate adjustment knob are both arranged at the front end of the flow rate regulator. The submersible pump connector and the power inlet are both arranged at the rear end of the flow rate regulator. The power-on module is plugged into the power inlet.

[0007] Among them, the power-on module includes a cable and a power connector. One end of the cable is connected to the power inlet, and the power connector is connected to the other end of the cable.

[0008] Among them, the flow rate regulator for groundwater sampling further includes a heat dissipation module. The heat dissipation module is connected to the flow rate regulator and is located on the flow rate regulator.

[0009] Among them, the heat dissipation module includes a housing and a heat dissipation fan. The housing is fixedly connected to the flow rate regulator and is located on the flow rate regulator. The heat dissipation fan is fixedly connected to the housing and is located inside the housing. The flow rate regulator has a plurality of heat dissipation holes, and the plurality of heat dissipation holes are evenly distributed on the flow rate regulator.

[0010] Among them, the flow rate regulator for groundwater sampling further includes a handle. The handle is fixedly connected to the flow rate regulator and is located above the flow rate regulator.

[0011] A flow rate regulator for groundwater sampling of the present utility model, when in use, first connect the power-on module to the output end of the DC power supply, insert the water pump interface into the submersible pump connector, then turn on the power switch and the flow rate switch, and slowly rotate the flow rate adjustment knob. The display screen will synchronously display the percentage of the flow rate. The flow rate regulator controls the duty cycle of the PWM pulse of the internal circuit board by rotating the knob. By adjusting the duty cycle, the rotation speed of the motor is adjusted, so as to realize the function of adjusting the flow rate and flow of the submersible pump. The flow rate switch is provided with three gears, namely forward rotation, reverse rotation and off, which can meet the switching and forward and reverse rotation requirements of the submersible pump motor. The flow rate regulator can achieve a wide speed regulation range of 0.1 L / min to 10 L / min for the submersible pump. The speed regulation principle is PWM pulse width speed regulation, and stepless smooth speed regulation can be realized during the speed regulation process. Through the above method, the real-time flow rate of the sampling pump can be controlled, different flow rate requirements can be adapted, and it is beneficial to detect water samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic structural diagram of the flow rate regulator for groundwater sampling of the present utility model.

[0014] Figure 2 It is a front view of the structure of the flow rate regulator for groundwater sampling of the present utility model.

[0015] Figure 3 It is a schematic structural diagram of another angle of the flow rate regulator for groundwater sampling of the present utility model.

[0016] Figure 4 It is a speed regulation electrical schematic diagram of the flow rate regulator for groundwater sampling of the present utility model.

[0017] 101 - Flow rate regulator, 102 - Display screen, 103 - Flow rate switch, 104 - Flow rate adjustment knob, 105 - Handle, 106 - Power inlet, 107 - Submersible pump connector, 108 - Cable, 109 - Power connector, 110 - Housing, 111 - Cooling fan, 112 - Cooling hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0019] Please refer to Figures 1 to 4 , the present utility model provides a flow rate regulator 101 for groundwater sampling, which includes a flow rate regulator 101, a display screen 102, a flow rate switch 103, a flow rate adjustment knob 104, a power-on module, a power inlet 106, and a submersible pump connector 107. The display screen 102 is fixedly connected to the flow rate regulator 101 and is located on the flow rate regulator 101. The flow rate switch 103 and the flow rate adjustment knob 104 are both arranged at the front end of the flow rate regulator 101. The submersible pump connector 107 and the power inlet 106 are both arranged at the rear end of the flow rate regulator 101. The power-on module is plugged into the power inlet 106.

[0020] In this embodiment, when in use, first connect the power-on module to the DC power supply output terminal, insert the water pump interface into the submersible pump connector 107, then turn on the power switch and the flow rate switch 103, and slowly rotate the flow rate adjustment knob 104. The display screen 102 will synchronously display the percentage of the flow rate. The flow rate regulator 101 controls the duty cycle of the PWM pulse of the internal circuit board by rotating the knob. By adjusting the duty cycle, the rotation speed of the motor is adjusted, so as to realize the function of adjusting the flow rate of the submersible pump. The flow rate switch 103 has three gears, namely forward rotation, reverse rotation, and off, which can meet the switching and forward and reverse rotation requirements of the submersible pump motor. The flow rate regulator 101 can achieve a wide flow rate adjustment range of 0.1 L / min to 10 L / min for the submersible pump. The speed regulation principle is PWM pulse width speed regulation, and stepless smooth speed regulation can be realized during the speed regulation process. Through the above method, the real-time flow rate of the sampling pump can be controlled, different flow rate requirements can be adapted, and it is beneficial to detect water samples.

[0021] Among them, in the internal circuit board, as Figure 4 shown, resistors R1, R2, R3, R4, R5, R6, R7, R8, adjustable resistor R9, capacitors C1, C2, C3, C4, C5, transistors VT1, VT2, VT3, VT4, transistor Q1, light-emitting diode LED1, diode VD1, relays J1, J2, switch S1, and a transistor of model 78L12 are used to control the duty cycle of the PWM pulse. By adjusting the duty cycle, the rotation speed of the motor is adjusted, so as to realize the function of adjusting the flow rate of the submersible pump.

[0022] Further, the power-on module includes a cable 108 and a power connector 109. One end of the cable 108 is connected to the power inlet 106, and the power connector 109 is connected to the other end of the cable 108.

[0023] In this embodiment, the power connector 109 is connected to the power inlet 106 through the cable 108. When the device is started, the power connector 109 is inserted into the DC power output terminal; the power inlet 106 of the flow rate regulator 101 and the cable 108 are in a fixed state. Only the power connector 109 needs to be connected to the DC power output terminal, and the submersible pump connector 107 needs to be plugged into the flow rate regulator 101, which can avoid misplugging and adopts an anti-fooling design.

[0024] Further, the flow rate regulator 101 for groundwater sampling further includes a heat dissipation module, and the heat dissipation module is connected to the flow rate regulator 101 and is located on the flow rate regulator 101.

[0025] In this embodiment, by providing the heat dissipation module on the flow rate regulator 101, the heat dissipation module can quickly dissipate heat inside the flow rate regulator 101, which can effectively extend the service life of the product.

[0026] Further, the heat dissipation module includes a housing 110 and a cooling fan 111. The housing 110 is fixedly connected to the flow rate regulator 101 and is located on the flow rate regulator 101. The cooling fan 111 is fixedly connected to the housing 110 and is located inside the housing 110. The flow rate regulator 101 has a plurality of heat dissipation holes 112, and the plurality of heat dissipation holes 112 are evenly distributed on the flow rate regulator 101.

[0027] In this embodiment, the housing 110 is fixed on the flow rate regulator 101, the cooling fan 111 is installed inside the housing 110, and a plurality of the heat dissipation holes 112 are formed in the flow rate regulator 101. The cooling fan 111 can quickly discharge the heat inside the flow rate regulator 101 through the heat dissipation holes 112, ensuring that the heat of the internal chip is effectively dissipated during the frequent speed regulation process, realizing the rapid heat dissipation inside the flow rate regulator 101, and effectively extending the service life of the product.

[0028] Further, the flow rate regulator 101 for groundwater sampling further includes a handle 105, and the handle 105 is fixedly connected to the flow rate regulator 101 and is located above the flow rate regulator 101.

[0029] In this embodiment, by arranging the handle 105 above the flow rate regulator 101, the handle 105 is utilized to facilitate the taking and holding of the flow rate regulator 101.

[0030] The above-disclosed is only a preferred embodiment of the present utility model, and of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A flow rate regulator for groundwater sampling, characterized in that it includes a flow rate regulator, a display screen, a flow rate switch, a flow rate adjustment knob, a power-on module, a power inlet and a submersible pump connector. The display screen is fixedly connected to the flow rate regulator and is located on the flow rate regulator. The flow rate switch and the flow rate adjustment knob are both arranged at the front end of the flow rate regulator. The submersible pump connector and the power inlet are both arranged at the rear end of the flow rate regulator. The power-on module is plugged into the power inlet; the flow rate regulator for groundwater sampling further includes a heat dissipation module. The heat dissipation module is connected to the flow rate regulator and is located on the flow rate regulator; the heat dissipation module includes a housing and a cooling fan. The housing is fixedly connected to the flow rate regulator and is located on the flow rate regulator. The cooling fan is fixedly connected to the housing and is located inside the housing. The flow rate regulator has a plurality of heat dissipation holes, and the plurality of heat dissipation holes are evenly distributed on the flow rate regulator.

2. The flow rate regulator for groundwater sampling according to claim 1, characterized in that the power-on module includes a cable and a power connector. One end of the cable is connected to the power inlet, and the power connector is connected to the other end of the cable.

3. The flow rate regulator for groundwater sampling according to claim 1, characterized in that the flow rate regulator for groundwater sampling further includes a handle. The handle is fixedly connected to the flow rate regulator and is located above the flow rate regulator.

Images