A precision spraying device for tobacco planting with biochar suspension
By designing a precision spraying device for biochar suspension in tobacco cultivation, the problem of continuous cropping obstacles in tobacco cultivation has been solved, enabling rapid and uniform spraying of biochar suspension and improving the economic benefits of tobacco cultivation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIJIE COMPANY OF GUIZHOU TOBACCO
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-26
AI Technical Summary
Continuous cropping in tobacco cultivation leads to soil degradation, affecting tobacco growth and economic benefits. Existing biochar suspension spraying equipment is inefficient and cannot quickly and effectively restore the soil.
A precision spraying device for biochar suspension in tobacco cultivation was designed. It adopts a plug-in connection between the water tank and the spraying frame, and uses a water pump and spraying pipe to achieve rapid installation and spraying. The spraying frame can be installed on a transport vehicle. The biochar suspension is sprayed onto the soil surface and mixed by the water pump.
It improved the spraying efficiency of biochar suspension, reduced spraying interruption time, enhanced the speed and uniformity of soil remediation, and improved the yield and quality of tobacco cultivation.
Smart Images

Figure CN224405504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of biochar suspension spraying equipment, specifically a precision spraying equipment for biochar suspension used in tobacco planting. Background Technology
[0002] Continuous planting of tobacco in the same plot can easily lead to crop rotation obstacles in tobacco fields, mainly manifested as deterioration of soil physicochemical properties, nutrient imbalance, alteration of the microbial flora, and autotoxic effects of allelochemicals secreted by plants in the soil. These changes in soil composition ultimately result in increased soil-borne pests and diseases, poor tobacco growth and development, reduced yield, and deterioration in quality, seriously affecting the economic benefits of tobacco cultivation. Biochar suspension is a solid-liquid mixture system formed by uniformly dispersing biochar particles in a liquid medium. It can be used for soil environmental remediation. Since the deterioration of soil properties in tobacco fields due to crop rotation obstacles mainly occurs in the top 0-20 cm of soil, when using biochar suspension for soil remediation, the biochar suspension can be sprayed onto the soil surface first, and then shallowly tilled to ensure uniform coverage.
[0003] In order to add biochar suspension more quickly and conveniently during the spraying operation and improve the spraying efficiency, this utility model proposes a precision spraying device for biochar suspension in tobacco planting. Summary of the Invention
[0004] The purpose of this invention is to provide a precision spraying device for biochar suspension in tobacco cultivation, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision spraying device for biochar suspension in tobacco cultivation, comprising a spraying frame and a water tank. The top of the spraying frame has a water tank trough, and the water tank can be placed inside the trough. A water inlet pipe is installed at the bottom of the spraying frame, with one end at the bottom of the trough and the other end connected to a water pump. The water pump is fixedly installed on the spraying frame, and its output end is connected to a spraying pipe. The water tank is hollow inside, with an opening at the top and a plug at the opening. A water outlet pipe is installed at the bottom of the water tank. The water tank is typically made of alkali-resistant high-density polyethylene material. An air pipe communicating with the inside of the water tank is installed at the top of the tank, and a one-way valve is installed on the air pipe, allowing only external gas to enter the water tank, thus replenishing gas into the tank during spraying operations and maintaining internal and external pressure balance. During spraying operations, the spraying frame needs to be installed on the transport vehicle. The installation method can be welding, snap-fit, or other methods that can achieve stable installation. The water tank containing biochar suspension can be loaded onto the vehicle for transport, and the water tank on the spraying frame can be replaced as soon as the biochar suspension is used up.
[0006] Preferably, the water outlet pipe runs through the inside and outside of the water tank, and a sealing plug is connected to the end inside the water tank. A groove is formed on the side wall of the water outlet pipe near the sealing plug. A spring is fitted on the outside of the water outlet pipe, with one end of the spring connected to the inner wall of the water tank and the other end connected to the outer wall of the water outlet pipe. The spring is always in a compressed state, and the spring force pushes the water outlet pipe and the sealing plug connected to the water outlet pipe, so that the sealing plug is pressed tightly against the bottom of the water tank to prevent the liquid inside the water tank from leaking.
[0007] Preferably, the water tank has a base block at the bottom, with a groove on the base block for connecting a water outlet pipe and for inserting a water inlet pipe. When the water inlet pipe is inserted into the groove of the base block, it pushes the water outlet pipe and the sealing plug upwards, allowing the liquid in the water tank to flow through the groove from the water outlet pipe into the water inlet pipe, and finally be pumped into the spray pipe by the water pump for spraying. A sealing rubber ring is provided at the connection between the inner wall of the groove of the base block and the water inlet pipe to prevent liquid leakage.
[0008] Preferably, the bottom of the water tank is provided with a locking block, and the bottom of the water tank trough is provided with a locking groove for the locking block to engage. When the locking block engages in the locking groove, the water tank needs to overcome greater friction to leave the water tank trough, making it less likely for the water tank to detach from the water tank trough.
[0009] Preferably, the spray pipe is provided with a plurality of spray nozzles.
[0010] Preferably, the outside of the spray frame is provided with a connecting frame for easy mounting and installation.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the plug-in design at the connection between the water tank and the water inlet pipe on the spray frame facilitates quick installation and removal of the water tank and the spray frame, reduces spraying interruption time, and improves spraying efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the connection structure between the water tank and the spray frame of this utility model;
[0013] Figure 2 This utility model Figure 1 Enlarged view at point A;
[0014] Figure 3 This is a schematic diagram of the side structure of the spray frame of this utility model.
[0015] In the diagram: 1. Sprayer frame, 11. Water tank, 12. Water inlet pipe, 13. Water pump, 14. Sprayer pipe, 2. Water tank, 21. Air pipe, 22. Plug, 23. Sealing plug, 24. Water outlet pipe, 25. Groove, 26. Spring, 27. Base block. Detailed Implementation
[0016] 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.
[0017] Referring to Figures (1-3), a precision spraying device for biochar suspension in tobacco cultivation includes a spraying frame 1 and a water tank 2. The device is characterized in that: a water tank trough 11 is provided at the top of the spraying frame 1, and the water tank 2 can be placed inside the water tank trough 11; a water inlet pipe 12 is provided at the bottom of the spraying frame 1, with one end of the water inlet pipe 12 located at the bottom of the water tank trough 11 and the other end connected to a water pump 13; the water pump 13 is fixedly installed on the spraying frame 1, and its output end is connected to a spraying pipe 14; the water tank 2 is hollow inside, with an opening at the top and a plug at the opening; and a water outlet pipe 24 is provided at the bottom of the water tank 2.
[0018] The water outlet pipe 24 penetrates both inside and outside the water tank 2, with a sealing plug 23 connected to one end inside the water tank 2. A groove 25 is formed on the side wall of the water outlet pipe 24 near the sealing plug 23. A spring 26 is fitted around the outside of the water outlet pipe 24, with one end connected to the inner wall of the water tank and the other end connected to the outer wall of the water outlet pipe 24. A bottom block 27 is provided at the bottom of the water tank 2, with a groove on the bottom block 27 for the water outlet pipe 24 to be connected, and this groove can be used to insert the water inlet pipe 12. A locking block is provided at the bottom of the water tank 2, and a locking groove is provided at the bottom of the water tank groove 11 for the locking block to be inserted. Multiple nozzles are arranged on the spray pipe 14. A connecting frame for easy mounting and installation is provided on the outside of the spray frame 1.
[0019] In use, this device is mounted on a transport vehicle, which carries the sprayer, a replacement water tank, and a portable power source to power the water pump on the sprayer. The spraying process involves the liquid in the water tank 2 entering the outlet pipe 24 through the slot 25, then passing through the groove on the base block 27 into the inlet pipe 12. Under the action of the water pump 13, the liquid in the inlet pipe 12 is pumped into the nozzle of the spray pipe 14 for spraying.
[0020] The orientations or positional relationships shown in the accompanying drawings are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A precision spraying device for tobacco planting with biochar suspension, comprising a spraying frame (1) and a water tank (2), characterized in that: The top of the spray frame (1) is provided with a water tank trough (11), and the water tank (2) can be placed in the water tank trough (11). The bottom of the spray frame (1) is provided with a water inlet pipe (12). One end of the water inlet pipe (12) is located at the bottom of the water tank trough (11), and the other end is connected to the water pump (13). The water pump (13) is fixedly installed on the spray frame (1), and its output end is connected to a spray pipe (14). The water tank (2) is hollow inside, with an opening at the top and a plug at the opening. The bottom of the water tank (2) is provided with a water outlet pipe (24).
2. The precision spraying equipment for biochar suspension in tobacco cultivation according to claim 1, characterized in that: The water outlet pipe (24) runs through the inside and outside of the water tank (2), and one end inside the water tank (2) is connected to a sealing plug (23). A slot (25) is provided on the side wall of the water outlet pipe (24) near the sealing plug (23). A spring (26) is sleeved on the outside of the water outlet pipe (24). One end of the spring (26) is connected to the inner wall of the water tank, and the other end is connected to the outer wall of the water outlet pipe (24).
3. The precision spraying equipment for biochar suspension in tobacco cultivation according to claim 2, characterized in that: The bottom of the water tank (2) is provided with a bottom block (27), and the bottom block (27) has a groove for connecting the water outlet pipe (24), and the groove can be inserted into the water inlet pipe (12).
4. The precision spraying equipment for biochar suspension in tobacco cultivation according to claim 1, characterized in that: The bottom of the water tank (2) is provided with a locking block, and the bottom of the water tank trough (11) is provided with a slot for the locking block to be inserted.
5. The precision spraying equipment for biochar suspension in tobacco cultivation according to claim 1, characterized in that: Multiple nozzles are arranged on the spray pipe (14).
6. The precision spraying equipment for biochar suspension in tobacco cultivation according to claim 1, characterized in that: The spray frame (1) is provided with a connecting frame on the outside for easy mounting and installation.