Backpack adjustable doser
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 酒泉市林果服务中心
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
Smart Images

Figure CN224522193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug delivery device technology, specifically a backpack adjustable drug delivery device. Background Technology
[0002] The desert plantations and grasslands in the Three-North region cover a large area and are severely affected by rodents. The window of opportunity for prevention and control is short, and the task of manual control is heavy.
[0003] The amount of pesticides applied in current manual control methods is difficult to control. Too little pesticide will not achieve the desired control effect, while too much pesticide will cause environmental pollution and endanger the lives of livestock and natural enemies. Utility Model Content
[0004] The purpose of this invention is to provide a backpack adjustable dosing device, which combines an electric control handle with a flow control valve to achieve real-time linear flow regulation. The operator can dynamically adjust the dosage according to the actual situation on site, accurately control and minimize unnecessary pesticide waste and over-application, significantly reduce the cost and risk caused by over-application, and solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a backpack adjustable dosing device, including a backpack frame, an air pump, and a medicine storage tank. The air pump is installed on one side of the backpack frame, and the air pump and the backpack frame are connected by a shock-absorbing shaft. The medicine storage tank is installed above the air pump. A dosing hose is provided on one side of the air pump, and the dosing hose is connected to the air pump through a flange. One end of the dosing hose is provided with an adapter pipe, and the middle section of the adapter pipe is provided with an electric control handle. A flow control valve is provided on one side of the electric control handle. Strap buckles are provided on both sides of the bottom of the backpack frame.
[0006] Preferably, the front end of the transfer tube is provided with a nozzle assembly, the nozzle assembly is connected to the transfer tube by an internal thread, and a feed pipe is provided on one side of the dosing hose, the feed pipe being connected to the storage tank.
[0007] Preferably, a shut-off valve is provided in the middle section of the feed pipe, and the feed pipe is connected to the nozzle assembly through a confluence valve.
[0008] Preferably, the medicine storage tank is provided with a screw cap on the top, a quick-connect valve is provided on the outer surface of the screw cap, and the quick-connect valve extends into the interior of the medicine storage tank, and a bottom drain is provided at the bottom of the medicine storage tank.
[0009] Preferably, the air pump includes a rotor assembly and a power supply assembly, with the power supply assembly located below the rotor assembly. One end of the rotor assembly is provided with a turbine blade, which is rotatably connected to the air pump.
[0010] Preferably, the outer surface of the air pump is provided with an air intake grille, and the air intake grille is interconnected with the turbine blades.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model, with its combination of electric control handle and flow control valve, achieves real-time linear flow regulation. The operator can dynamically adjust the dosage according to the actual situation on site, which completely solves the problem of inaccurate dosage caused by relying on experience and feeling. Precise control minimizes unnecessary pesticide waste and over-application, and significantly reduces the cost and risk caused by over-application.
[0013] 2. This utility model has a good atomization effect and airflow propulsion, which ensures that the agent can cover the target surface more evenly, improve the agent utilization rate and control effect, and the high-speed airflow gives the spray a certain range and penetration, making it convenient to apply the agent to higher or farther targets. Attached Figure Description
[0014] Figure 1 This is the overall front view of the present invention;
[0015] Figure 2 This is a schematic diagram of the internal structure of the air pump of this utility model.
[0016] In the diagram: 1. Back frame; 2. Air pump; 3. Medicine storage tank; 101. Shoulder strap buckle; 102. Shock-absorbing shaft frame; 201. Dosing hose; 202. Adaptor pipe; 203. Flow control valve; 204. Electric control handle; 205. Nozzle assembly; 206. Rotor assembly; 2061. Air intake grille; 2062. Turbine blade; 2063. Power supply assembly; 301. Cap; 302. Feed pipe; 303. Bottom outlet; 3011. Quick-connect valve; 3021. Shut-off valve; 3022. Confluence valve. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] To address the challenges of controlling the dosage of pesticides applied manually—too little to achieve the desired control, and too much to cause environmental pollution and endanger livestock and predators—please refer to [the relevant documentation / reference]. Figure 1-2 The present invention provides the following solution:
[0019] The backpack adjustable dosing device includes a backpack frame 1, an air pump 2, and a medicine storage tank 3. The air pump 2 is installed on one side of the backpack frame 1 and is connected to the backpack frame 1 via a shock-absorbing shaft bracket 102. The medicine storage tank 3 is installed above the air pump 2. A dosing hose 201 is provided on one side of the air pump 2 and is connected to the air pump 2 via a flange. One end of the dosing hose 201 is provided with an adapter 202. An electric control handle 204 is provided in the middle section of the adapter 202, and a flow control valve 203 is provided on one side of the electric control handle 204. Both sides of the bottom of the backpack frame 1 are provided with shoulder strap buckles 101.
[0020] In this embodiment, the operator carries the equipment on their back and secures the back frame 1 with braided straps and strap buckles 101. The medicine is pre-stored in the medicine storage tank 3. The quick-connect valve 3011 facilitates quick connection to the filling equipment or pressurizing device. When medication is needed, the shut-off valve 3021 in the middle section of the feed pipe 302 is opened, allowing the medicine to flow out of the medicine storage tank 3 under gravity or slight pressure. The medicine flows through the feed pipe 302 to the confluence valve 3022.
[0021] The front end of the transfer tube 202 is provided with a nozzle assembly 205, which is connected to the transfer tube 202 via an internal thread. A feed tube 302 is provided on one side of the dosing hose 201, which is connected to the storage tank 3. A shut-off valve 3021 is provided in the middle section of the feed tube 302. The feed tube 302 is connected to the nozzle assembly 205 via a confluence valve 3022. A cap 301 is provided on the top of the storage tank 3. A quick-connect valve 3011 is provided on the outer surface of the cap 301, and the quick-connect valve 3011 extends into the interior of the storage tank 3. A bottom outlet 303 is provided at the bottom of the storage tank 3.
[0022] In this embodiment, a high-speed airflow is delivered from the air pump 2 to the transfer pipe 202 via the dosing hose 201. At the confluence valve 3022, the liquid medicine from the feed pipe 302 meets the high-speed airflow from the dosing hose 201. The high-speed airflow generates negative pressure in the confluence valve 3022, which efficiently draws out the liquid medicine or powder medicine and shears and breaks it up to form a preliminary atomized mixed flow.
[0023] The mixed flow enters the transfer pipe 202 and flows through the flow control valve 203. The operator issues a command through the electric control handle 204 to adjust the opening of the flow control valve 203 in real time and linearly. The electric control handle 204 allows the operator to easily and steplessly adjust the flow rate of the liquid solution while moving, according to the actual prevention and control needs, and can set it arbitrarily between completely closed and maximum flow.
[0024] The air pump 2 includes a rotor assembly 206 and a power supply assembly 2063. The power supply assembly 2063 is located below the rotor assembly 206. One end of the rotor assembly 206 is provided with a turbine blade 2062, which is rotatably connected to the air pump 2. An air intake grille 2061 is provided on the outer surface of the air pump 2, and the air intake grille 2061 and the turbine blade 2062 are interconnected.
[0025] In this embodiment, the power supply component 2063 of the air pump 2 is started to supply power to the rotor assembly 206. The rotor assembly 206 drives the turbine blade 2062 to rotate at high speed. The rotation of the turbine blade 2062 draws in a large amount of air from the outside through the air intake grille 2061 and forms a high-speed and stable airflow inside the air pump 2. The shock-absorbing shaft frame 102 effectively absorbs the vibration generated during the operation of the air pump 2, improving carrying comfort and equipment stability.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A backpack-type adjustable drug delivery device, characterized in that, The device includes a back frame (1), an air pump (2), and a medicine storage tank (3). The air pump (2) is installed on one side of the back frame (1), and the air pump (2) is connected to the back frame (1) via a shock-absorbing shaft frame (102). The medicine storage tank (3) is installed above the air pump (2). A dosing hose (201) is provided on one side of the air pump (2), and the dosing hose (201) is connected to the air pump (2) via a flange. One end of the dosing hose (201) is provided with a transfer pipe (202), and the middle section of the transfer pipe (202) is provided with an electric control handle (204). A flow control valve (203) is provided on one side of the electric control handle (204). Both sides of the bottom of the back frame (1) are provided with shoulder strap buckles (101).
2. The backpack-type adjustable dosing device according to claim 1, characterized in that: The front end of the transfer tube (202) is provided with a nozzle assembly (205), and the nozzle assembly (205) is connected to the transfer tube (202) by an internal thread. A feed pipe (302) is provided on one side of the dosing hose (201), and the feed pipe (302) is connected to the medicine storage tank (3).
3. The backpack-type adjustable dosing device according to claim 2, characterized in that: A shut-off valve (3021) is provided in the middle section of the feed pipe (302), and the feed pipe (302) is connected to the nozzle assembly (205) through a confluence valve (3022).
4. The backpack-type adjustable dosing device according to claim 1, characterized in that: The medicine storage tank (3) is provided with a screw cap (301) on the top, and a quick-connect valve (3011) is provided on the outer surface of the screw cap (301), and the quick-connect valve (3011) extends into the interior of the medicine storage tank (3). The bottom of the medicine storage tank (3) is provided with a bottom drain port (303).
5. The backpack-type adjustable dosing device according to claim 1, characterized in that: The air pump (2) includes a rotor assembly (206) and a power supply assembly (2063). The power supply assembly (2063) is located below the rotor assembly (206). One end of the rotor assembly (206) is provided with a turbine blade (2062), which is rotatably connected to the air pump (2).
6. The backpack-type adjustable dosing device according to claim 5, characterized in that: The outer surface of the air pump (2) is provided with an air intake grille (2061), which is connected to the turbine blades (2062).