A seeding machine quantitative water supply device with air buffering device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEZHOU SHENGSHIJIA AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
Smart Images

Figure CN224402170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural planting equipment technology, and in particular to a quantitative water supply device for a seeder with a gas-releasing device. Background Technology
[0002] In traditional seeder water supply operations, there is often a problem of unstable water supply. The water injection process lacks effective control measures, which can easily lead to over-injection or interruption of water supply. In addition, the water delivery components are prone to loosening due to shaking, which affects the normal water supply.
[0003] Meanwhile, impurities in the water can easily enter the water supply system, causing blockages in the delivery pipelines and power components. This not only requires frequent shutdowns for cleaning, but also exacerbates component wear and shortens the equipment's lifespan.
[0004] Water supply pressure is easily affected by dynamic fluctuations, resulting in uneven water supply at the sowing points. Some sowing points may receive too much or too little water, which affects seed growth.
[0005] In addition, excess water cannot be recycled, resulting in waste, and excessive pressure can easily damage pipes and components, increasing maintenance costs;
[0006] The water supply and sowing actions are difficult to coordinate precisely, often resulting in water supply being delayed or premature, making it impossible to ensure that each sowing point receives water at the optimal time.
[0007] Meanwhile, the vibration during equipment operation can easily cause the connections of various components to loosen, increasing the probability of failure, affecting sowing efficiency and quality, and causing many inconveniences to sowing operations. Utility Model Content
[0008] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a quantitative water supply device for a seeder with a gas-releasing device, which can solve the problem of uneven water supply in the seeder.
[0009] To achieve the above objectives, this utility model provides the following technical solution:
[0010] A quantitative water supply device for a seeder with a decelerating air device includes a tractor. A frame is fixedly installed on the upper end of the tractor, and a water tank is fixedly installed on the top of the frame. A water inlet pipe is connected to the top of the water tank. A water pump is fixedly installed inside the water tank. The outlet end of the water pump is connected to a cavity. An air bladder is fixedly installed inside the cavity. The outside of the air bladder is connected to the inside of the cavity. A water outlet pipe is connected to the cavity. A water distribution pipe is fixedly installed at the other end of the water outlet pipe. A seeder is fixedly installed at the rear end of the tractor, and the water distribution pipe is fixedly installed on the seeder.
[0011] Preferably, a bracket is fixedly installed on the side of the water tank, and the bracket is sleeved on the water supply pipe.
[0012] Preferably, a valve is fixedly installed on the water supply pipe.
[0013] Preferably, a one-way valve is fixedly installed at the outlet end of the water pump, and the one-way valve is located between the water pump and the cavity.
[0014] Preferably, the cavity is also connected to a return water pipe, which is connected to the water tank.
[0015] Preferably, both the water inlet pipe and the water outlet pipe are equipped with filter screens.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) The quantitative water supply device for the seeder with the air-relieving device has a water tank that stores water through the water inlet pipe. The valve can flexibly control the water injection status. The bracket fixes the water inlet pipe to prevent shaking, ensuring a stable water supply and easy operation. The filter screens in the water inlet and outlet pipes can intercept impurities, reduce the risk of blockage to components such as the water pump, cavity, and outlet pipe, and extend the service life of the equipment.
[0018] (2) The quantitative water supply device for the seeder with the air-relieving device has an air bladder in the cavity that stabilizes the water flow pressure through elastic adjustment, avoiding pressure fluctuations from affecting the water supply. It is also equipped with a one-way valve to prevent water backflow, ensuring that the water flow is continuously delivered to the water distribution pipe. The return pipe returns the overpressure water flow in the cavity to the water tank, realizing the recycling of water resources, while avoiding damage to components due to excessive pressure.
[0019] (3) The quantitative water supply device for the seeder with the air-relieving device allows the water to flow through the downpipe into the distribution pipe after pressure stabilization. This can accurately match the seeder's sowing rhythm, achieve synchronization between sowing and water supply, ensure uniform water supply at each sowing point, and facilitate seed growth. The tractor drives the entire device to move, and the frame fixes the water tank and other components, reducing the impact of vibration during operation, improving overall operational stability, reducing the probability of equipment failure, and ultimately improving sowing efficiency and quality. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0021] Figure 1 This is a schematic diagram of a quantitative water supply device for a seeder with a gas-releasing device according to the present invention;
[0022] Figure 2 This is a schematic diagram of a quantitative water supply device for a seeder with a gas-releasing device according to the present invention;
[0023] Figure 3This is a cross-sectional schematic diagram of a quantitative water supply device for a seeder with a gas-releasing device according to the present invention;
[0024] Figure 4 This is a cross-sectional schematic diagram of a quantitative water supply device for a seeder with a slow-release air device according to the present invention.
[0025] Reference numerals: 1. Tractor; 2. Water inlet pipe; 3. Valve; 4. Bracket; 5. Water tank; 6. Cavity; 7. Water return pipe; 8. Water outlet pipe; 9. Water distribution pipe; 10. Seeder; 11. Frame; 12. Filter screen; 13. Water pump; 14. Airbag; 15. One-way valve. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0030] Please see Figure 1-4 This utility model provides a technical solution: a quantitative water supply device for a seeder with a gas-relieving device, including a tractor 1, a frame 11 fixedly installed on the upper end of the tractor 1, a water tank 5 fixedly installed on the top of the frame 11, and a water supply pipe 2 connected to the top of the water tank 5.
[0031] A bracket 4 is fixedly installed on the side of the water tank 5. The bracket 4 is sleeved on the water inlet pipe 2. A valve 3 is fixedly installed on the water inlet pipe 2.
[0032] Water is injected into the water tank 5 through the water inlet pipe 2. At this time, the opening and closing of the water inlet pipe 2 can be controlled by the valve 3. When the valve 3 is closed, water injection stops, and when it is open, water is continuously supplied. The bracket 4 fixes the water inlet pipe 2 to prevent the water inlet pipe 2 from shaking when water is injected or the equipment is moved. After the water in the water tank 5 is stored, the device enters the standby state.
[0033] A cavity 6 is fixedly installed on the top of the tractor 1. A return water pipe 7 and a drain water pipe 8 are fixedly installed on both sides of the cavity 6 respectively. The return water pipe 7 is connected to the water tank 5 and the inside of the cavity 6. A filter screen 12 is fixedly installed inside both the water inlet pipe 2 and the drain water pipe 8.
[0034] A water pump 13 is fixedly installed inside the water tank 5. A one-way valve 15 is fixedly installed at the outlet end of the water pump 13. The outlet end of the water pump 13 is connected to the inside of the cavity 6.
[0035] An airbag 14 is fixedly installed inside the cavity 6. The airbag 14 is pre-filled with low-pressure air, and the outside of the airbag 14 is connected to the inside of the cavity 6.
[0036] Tractor 1 starts and moves the entire device. At the same time, water pump 13 inside water tank 5 starts. Water pump 13 draws water from water tank 5. When water flows through the outlet of water pump 13, check valve 15 ensures that water flows only in the direction of cavity 6 to prevent water from flowing back to water pump 13 and avoid water supply interruption. The filter screen 12 inside water pipe 2 and water pipe 8 filters the water flow and intercepts impurities in the water to prevent impurities from clogging subsequent pipes or affecting the water supply for sowing.
[0037] Water flows into the cavity 6 under the action of water pump 13. At this time, the airbag 14 in the cavity 6 begins to function. The low-pressure air pre-filled in the airbag 14 keeps the airbag 14 in its initial shape. When the water flows into the cavity 6 and causes changes in internal pressure, the airbag 14 absorbs the pressure fluctuations by expanding or contracting itself. When the pressure rises, the airbag 14 is squeezed and contracted by the water flow. When the pressure drops, the airbag 14 expands by the internal air pressure, thereby stabilizing the water flow pressure in the cavity 6 and achieving the effect of slow air flow and pressure stabilization.
[0038] If the water pressure inside cavity 6 is too high, the excess water will flow back to water tank 5 through return pipe 7. Return pipe 7 connects water tank 5 and cavity 6 to form a circulation path, preventing abnormal pressure rise inside cavity 6. Water tank 5 can continuously provide water to water pump 13 through the water flow recovered by return pipe 7, realizing the recycling of water resources.
[0039] A water distribution pipe 9 is fixedly installed at the other end of the drain pipe 8, and a seeder 10 is fixedly installed at the rear end of the tractor 1. The water distribution pipe 9 is fixedly installed on the seeder 10.
[0040] After the water pressure is stabilized by the cavity 6, it is delivered to the water distribution pipe 9 through the drain pipe 8. The water distribution pipe 9 distributes the water to the corresponding sowing position of the seeder 10, and coordinates with the sowing action of the seeder 10 to achieve synchronous water supply during sowing. Since the cavity 6 stabilizes the water pressure through the air bag 14, the water flow state delivered from the drain pipe 8 to the water distribution pipe 9 is stable, ensuring the quantitative water supply.
[0041] Tractor 1 serves as the power source. Its core principle is to convert chemical energy or electrical energy into mechanical energy through an internal combustion engine or electric motor, drive the wheels through the transmission system to achieve movement, and provide power to the matching agricultural implements through the power output shaft. Its structure usually includes an engine, clutch, gearbox, walking mechanism and hydraulic system. It can be connected to agricultural implements such as seeder 10 through a three-point suspension device to achieve traction and power transmission.
[0042] Seeder 10 sows seeds into the soil at a set spacing and depth by means of mechanical or pneumatic means. Its core components include seed box, seed metering device, furrow opener and soil covering device. Modern precision seeders mostly use pneumatic seed metering device, which uses airflow to adsorb or push seeds to achieve single-seed precision sowing, reduce seed breakage rate and improve uniformity.
[0043] In agricultural production, the common matching combination of tractor 1 and seeder 10 is as follows: small and medium-sized tractor models such as Foton Lovol F704 are often paired with Maschio 2BQM series no-till seeders, which are suitable for hilly or small plot operations.
[0044] Working principle: During use, water is injected into the water tank 5 through the water inlet pipe 2, the valve 3 controls the water injection, the bracket 4 fixes the water inlet pipe 2, and the device is ready to work after the water tank 5 stores water. The tractor 1 is started, the water pump 13 draws water from the water tank 5, and the water flows through the one-way valve 15 into the cavity 6. The filter screen 12 in the water inlet pipe 2 and the water outlet pipe 8 filters impurities. After the water flows into the cavity 6, the air bladder 14 stabilizes the pressure by expanding or contracting. The overpressure water flows back to the water tank 5 through the return water pipe 7. The stabilized water flows through the water outlet pipe 8 to the water distribution pipe 9. The water distribution pipe 9 distributes the water quantitatively to the seeder 10, so as to achieve synchronous water supply for sowing in conjunction with the seeder 10.
[0045] Water tank 5 stores water through water inlet pipe 2, valve 3 can flexibly control the water injection status, bracket 4 fixes water inlet pipe 2 to prevent shaking, ensures stable water supply and facilitates operation, filter screen 12 in water inlet pipe 2 and water outlet pipe 8 can intercept impurities, reduce the risk of blockage of components such as water pump 13, cavity 6, water outlet pipe 8, etc., and extend the service life of equipment.
[0046] The airbag 14 inside the cavity 6 stabilizes the water flow pressure through elastic adjustment, avoiding pressure fluctuations from affecting the water supply. It works with the one-way valve 15 to prevent water backflow and ensure that the water flow is continuously delivered to the water distribution pipe 9. The return water pipe 7 returns the overpressure water flow in the cavity 6 to the water tank 5, realizing the recycling of water resources and avoiding damage to components due to excessive pressure.
[0047] After pressure stabilization, the water flows through the drain pipe 8 into the distribution pipe 9, which can precisely match the sowing rhythm of the seeder 10, realize the synchronization of sowing and water supply, ensure uniform water supply to each sowing point, which is conducive to seed growth. The tractor 1 drives the entire device to move, and the frame 11 fixes the water tank 5 and other components, reducing the impact of vibration during operation, improving the overall operational stability, reducing the probability of equipment failure, and ultimately improving sowing efficiency and quality.
[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A quantitative water supply device for a seeder with a gas-relieving device, comprising a tractor (1), characterized in that: The upper end of the tractor (1) is fixedly installed with a frame (11), a water tank (5) is fixedly installed above the frame (11), a water inlet pipe (2) is connected above the water tank (5), a water pump (13) is fixedly installed inside the water tank (5), and a cavity (6) is connected to the outlet end of the water pump (13). An airbag (14) is fixedly installed inside the cavity (6). The cavity (6) is connected to a drain pipe (8). A water distribution pipe (9) is fixedly installed at the other end of the drain pipe (8). A seeder (10) is fixedly installed at the rear end of the tractor (1). The water distribution pipe (9) is fixedly installed on the seeder (10).
2. The quantitative water supply device for a seeder with a gas-relieving device according to claim 1, characterized in that: A bracket (4) is fixedly installed on the side of the water tank (5), and the bracket (4) is sleeved on the water supply pipe (2).
3. A quantitative water supply device for a seeder with a gas-relieving device according to claim 2, characterized in that: A valve (3) is fixedly installed on the water supply pipe (2).
4. A quantitative water supply device for a seeder with a gas-relieving device according to claim 3, characterized in that: A one-way valve (15) is fixedly installed at the outlet end of the water pump (13), and the one-way valve (15) is located between the water pump (13) and the cavity (6).
5. A quantitative water supply device for a seeder with a gas-relieving device according to claim 4, characterized in that: The cavity (6) is also connected to a return water pipe (7), which is connected to the water tank (5).
6. A quantitative water supply device for a seeder with a gas-relieving device according to claim 5, characterized in that: Both the water inlet pipe (2) and the water outlet pipe (8) are fixedly equipped with filter screens (12).
7. A quantitative water supply device for a seeder with a gas-relieving device according to claim 6, characterized in that: The outside of the airbag (14) is connected to the inside of the cavity (6).