Sprayer capable of adjusting speed and pressurizing

Abstract

The utility model discloses a sprayer capable of adjusting speed and pressurizing, and aims to provide a sprayer capable of controlling liquid flow rate and increasing internal water pressure, the technical scheme is that the sprayer comprises a spraying container, an electric pump body and an adjustable nozzle, the electric pump body is fixed in the spraying container, the adjustable nozzle is connected with the electric pump body through a guide pipe, and the adjustable nozzle is connected with the electric pump body through the guide pipe. A speed regulation control module and a pressurization mechanism are further arranged in the electric pump body, the speed regulation control module comprises a display panel and a rotary knob which are electrically connected with the electric pump body, and the pressurization mechanism comprises a pressurization piston integrated in the electric pump body and an air pressure sensor used for monitoring air pressure changes. A control unit is further arranged in the electric pump body and used for dynamically adjusting the working state of the pressurizing mechanism and maintaining a set pressure value.

Description

Technical Field

[0001] This utility model relates to a sprayer, and more specifically, to a sprayer capable of controlling liquid flow rate and increasing internal water pressure. Background Technology

[0002] A sprayer is a common type of agricultural plant protection machinery, which can be divided into manual sprayers and electric sprayers. Large manual sprayers usually consist of a tank, infusion tubing, pump body, and nozzles.

[0003] Currently, most large sprayers on the market only have basic spraying functions. In actual use, they cannot effectively control the spray flow rate. When the internal air pressure is insufficient, it will affect the spraying efficiency. In addition, the area of ​​the nozzle is fixed, making it impossible to effectively control the spray volume. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustable speed and pressurized sprayer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable speed and pressurized sprayer, comprising a spray container, an electric pump body, and an adjustable nozzle, characterized in that the electric pump body is fixed inside the spray container, the adjustable nozzle is connected to the electric pump body via a conduit, the electric pump body is further provided with a speed control module and a pressurization mechanism, the speed control module includes a display panel and a knob electrically connected to the electric pump body, the pressurization mechanism includes a pressurization piston integrated inside the electric pump body and a pressure sensor for monitoring air pressure changes, the electric pump body is further provided with a control unit, the control unit being used to dynamically adjust the working state of the pressurization mechanism and maintain a set pressure value.

[0006] By adopting the above technical solution, the utility model is equipped with an electric pump body and an adjustable nozzle. The electric pump body increases the pumping capacity by consuming electrical energy. The speed control module inside can control the flow rate of the internal liquid and reflect the internal flow rate through the display panel. It is also equipped with a pressurization mechanism to increase the air pressure inside the pump body and improve the pumping efficiency. It is also equipped with a control unit to maintain a certain pressure value and dynamically adjust the pressurization mechanism.

[0007] The present invention is further configured such that: the knob of the speed control module is a stepless speed control knob, and its signal transmission method is resistive or encoder.

[0008] By adopting the above technical solution, the stepless speed control knob provides smoother and more continuous speed adjustment compared to conventional knobs, and can also achieve real-time control of liquid flow rate.

[0009] The present invention is further configured such that: the control unit includes a pressure feedback element and a control circuit board, the control circuit board being used to receive electrical signals from the pressure feedback element and to adjust them.

[0010] By adopting the above technical solution, the pressure feedback unit and control circuit board provided on the control unit enable the control unit to receive the electrical signal transmitted by the pressure feedback unit and control and regulate the pressure.

[0011] The present invention is further configured such that: the pressure feedback element is a MEMS piezoresistive sensor, and forms a closed-loop control circuit with the control circuit board.

[0012] By adopting the above technical solution, the pressure feedback element uses a MEMS-type piezoresistive sensor as a new generation of output sensor. Compared with traditional sensors, its performance parameters are more stable and it is more sensitive to pressure changes. When combined with the control circuit board, it can perform adaptive regulation.

[0013] The present invention is further configured such that: the adjustable nozzle includes a multi-stage atomizing plate group, the multi-stage atomizing plate group being configured such that: when the head of the adjustable nozzle is rotated, the multi-stage atomizing plate group will limit the spray area at the sprayer outlet.

[0014] By adopting the above technical solution, the multi-stage atomizing plate group provided with the adjustable nozzle can finely adjust the spray nozzle area of ​​the sprayer. The multi-stage atomizing plate is composed of multiple rotatable atomizing plates. All atomizing plates are semi-enclosed structures. When rotated, the channel size can be linearly controlled to adjust the size of the spray nozzle.

[0015] The present invention is further configured such that the electric pump body has a built-in lithium battery and an overvoltage protection circuit.

[0016] By adopting the above technical solution, the lithium battery serves as the power source for driving the pump body, and the additional overvoltage protection circuit can cut off the circuit and protect it when the circuit is running abnormally. Attached Figure Description

[0017] Figure 1 This is a perspective view of an embodiment of the adjustable speed and pressurized sprayer of this utility model;

[0018] Figure 2 This is a diagram showing the internal structure of an adjustable nozzle.

[0019] The attached diagram is labeled as follows: 1. Spray container; 2. Electric pump body; 3. Adjustable nozzle; 4. Display panel; 5. Knob; 6. Pressure booster piston; 7. Multi-stage atomizing plate assembly. Detailed Implementation

[0020] Reference Figures 1 to 2The embodiments of the sprayer of this utility model are further described below.

[0021] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0022] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0023] An adjustable-speed, pressurized sprayer includes a spray container 1, an electric pump body 2, and an adjustable nozzle 3. The electric pump body 2 is fixed inside the spray container 1, and the adjustable nozzle 3 is connected to the electric pump body 2 via a conduit. The electric pump body 2 also includes a speed control module and a pressurization mechanism. The speed control module includes a display panel 4 and a knob 5 electrically connected to the electric pump body 2. The pressurization mechanism includes a pressurization piston 6 integrated inside the electric pump body 2 and a pressure sensor for monitoring pressure changes. The electric pump body 2 also includes a control unit for dynamically adjusting the working state of the pressurization mechanism and maintaining a set pressure value. This invention features an electric pump body 2 and an adjustable nozzle 3. The electric pump body 2 increases its pumping capacity by consuming electrical energy. Its internal speed control module controls the flow rate of the internal liquid and displays the flow rate on the display panel 4. The pressurization mechanism increases the internal air pressure to improve the pumping efficiency, and the control unit maintains a certain pressure value and dynamically adjusts the pressurization mechanism.

[0024] Specifically, the control unit includes a pressure feedback element and a control circuit board. The control circuit board receives and adjusts the electrical signal from the pressure feedback element. The pressure feedback element is a MEMS piezoresistive sensor and forms a closed-loop control circuit with the control circuit board. The pressure feedback unit and control circuit board on the control unit enable the control circuit board to receive the electrical signal transmitted by the pressure feedback unit and control and adjust the pressure. The pressure feedback element uses a MEMS piezoresistive sensor as a new generation of output sensor, which has more stable performance parameters and is more sensitive to pressure changes than traditional sensors. After working with the control circuit board, it can perform adaptive regulation. The control circuit board also has a corresponding processor to process the electrical signal.

[0025] Furthermore, the adjustable nozzle 3 includes a multi-stage atomizing plate group 7, which is configured such that when the head of the adjustable nozzle 3 is rotated, the multi-stage atomizing plate group 7 restricts the spray area at the sprayer outlet. The multi-stage atomizing plate group 7 provided in the adjustable nozzle 3 can finely adjust the spray nozzle area. The multi-stage atomizing plate group consists of multiple rotatable atomizing plates, all of which are semi-enclosed structures. When rotated, the channel size can be linearly controlled to adjust the size of the spray nozzle. When rotated, the atomizing plate near the outlet end can cover the channel of the previous atomizing plate, and the channel size can be controlled between a quarter circle and a semi circle.

[0026] As a further optimization design, the knob 5 of the speed control module is a stepless speed control knob 5, and its signal transmission method is resistive or encoder type. The electric pump body 2 has a built-in lithium battery and overvoltage protection circuit. The stepless speed control knob 5 provides smoother and more continuous speed adjustment compared to the conventional knob 5, and can also realize real-time control of liquid flow rate. The lithium battery serves as the power source for driving the pump body. The additional overvoltage protection circuit can cut off the circuit when the circuit is abnormal, protecting the relevant circuits of the speed control module and the pressurization mechanism circuit in the electric pump body 2.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A variable speed, pressurized sprayer comprising a spray container (1), an electric pump body (2) and a variable nozzle (3), characterized in that, The electric pump body (2) is fixed inside the spray container (1), the adjustable nozzle (3) is connected with the electric pump body (2) through a conduit, a speed control module and a pressure increasing mechanism are further arranged in the electric pump body (2), the speed control module comprises a display panel (4) and a knob (5) electrically connected with the electric pump body (2), the pressure increasing mechanism comprises a pressure increasing piston (6) integrated in the electric pump body (2) and a gas pressure sensor for monitoring the change of gas pressure, a control unit is further arranged in the electric pump body (2), and the control unit is used for dynamically adjusting the working state of the pressure increasing mechanism and maintaining the set pressure value.

2. A variable speed, pressure boosted nebulizer according to claim 1, wherein, The knob (5) of the speed control module is a stepless speed regulation knob (5), and the signal transmission mode is resistance type or encoder type.

3. A variable speed, pressure boosted nebulizer according to claim 1, wherein, The control unit comprises a pressure feedback element and a control circuit board, and the control circuit board is used for receiving the electric signal of the pressure feedback element and adjusting.

4. A variable speed, pressure boosted nebulizer according to claim 3, wherein, The pressure feedback element is a MEMS type piezoresistive sensor, and a closed loop control circuit is formed between the pressure feedback element and the control circuit board.

5. A variable speed, pressure boosted nebulizer according to claim 1, wherein, The adjustable nozzle (3) comprises a multi-stage atomizing piece group (7), and the multi-stage atomizing piece group (7) is configured to limit the spray area of the sprayer outlet when the head of the adjustable nozzle (3) is rotated.

6. A variable speed, pressure boosted nebulizer according to claim 1, wherein, The electric pump body (2) is provided with a lithium battery and an overvoltage protection circuit.

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