Constant-pressure drip irrigation device for Chinese herbal medicine planting

Abstract

The invention discloses a Chinese herbal medicine planting constant pressure type drip irrigation device, and relates to the technical field of Chinese herbal medicine drip irrigation, the Chinese herbal medicine planting constant pressure type drip irrigation device comprises a base, the base is fixedly connected with a water tank, the base is fixedly connected with a drip irrigation water pipe, and the drip irrigation water pipe is communicated with drip irrigation heads distributed at equal intervals; one end of the drip irrigation water pipe is slidably connected with a first sliding plug, an opening is formed in the side, close to the first sliding plug, of the drip irrigation water pipe, the first sliding plug blocks the opening, and a first spring is fixedly connected between the first sliding plug and the drip irrigation water pipe. By arranging the sliding plug, the spring and a related linkage mechanism, the pressure relief channel is automatically opened when the water pressure in the drip irrigation water pipe rises, redundant water flows back to the water tank, and the situation that the system is impacted due to the too high water pressure is effectively prevented; when the water pressure is reduced, the water supply path of the water tank is automatically recovered, water is supplemented through gravity, the lowest working pressure of the system is maintained, continuity and stability of the drip irrigation process are guaranteed, and the pressure stabilizing device is simple in structure and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese herbal medicine drip irrigation, and in particular to a constant-pressure drip irrigation device for Chinese herbal medicine planting. Background Art

[0002] Among existing agricultural irrigation technologies, drip irrigation systems are widely used in the cultivation of various crops due to their advantages of water saving, high efficiency and precision. Especially in the field of Chinese herbal medicine cultivation, which has high requirements for the growth environment, stable and uniform irrigation is of great significance to improving the yield and quality of medicinal materials.

[0003] However, traditional drip irrigation systems suffer from water pressure fluctuations during operation, which can easily lead to excessively high or low water pressure. This can affect the uniformity and stability of water output from the drip irrigation heads, leading to uneven irrigation and negatively impacting crop growth quality. Currently, while some drip irrigation systems have pressure regulation mechanisms, these often utilize electronic control systems or complex external pressure-regulating valve groups, which are complex and expensive. Furthermore, in the event of a power outage in the electronic control system, maintaining basic pressure balance is difficult, impacting the system's continuous and stable operation.

[0004] Therefore, there is an urgent need for a mechanical Chinese herbal medicine planting constant pressure drip irrigation device with a simple structure, low cost and automatic voltage stabilization function to improve the stability and practicality of the drip irrigation system. Summary of the Invention

[0005] In order to overcome the shortcomings of the electronic control system, such as complex structure, high cost, and difficulty in maintaining basic pressure balance when the electronic control system fails due to power outage, the present invention provides a constant pressure drip irrigation device for Chinese herbal medicine planting.

[0006] A constant-pressure drip irrigation device for Chinese herbal medicine planting includes a base, a water tank fixedly connected to the base, a drip irrigation pipe fixedly connected to the base, the drip irrigation pipe being connected to drip irrigation heads distributed at equal intervals, one end of the drip irrigation pipe being slidably connected to a first sliding plug, the drip irrigation pipe having an opening on a side close to the first sliding plug, the first sliding plug blocking the opening, a first spring fixedly connected between the first sliding plug and the drip irrigation pipe, a return pipe being connected between the side of the drip irrigation pipe close to the first sliding plug and the water tank, a second sliding plug being slidably connected to the side of the drip irrigation pipe close to the water tank, the second sliding plug having a water outlet, and the water outlet aligned with the outlet of the water tank.

[0007] Furthermore, a water pump is included, and the output end of the water pump is connected to the drip irrigation pipe.

[0008] Furthermore, it also includes a sliding plate, which is slidably connected to the drip irrigation pipe. The sliding plate is connected to a one-way valve, which is connected to a bellows. A fixed pipe is fixed between the bellows and the return pipe. The sliding plate has a through cavity, and the sliding plate is connected to the one-way valve through the through cavity.

[0009] Furthermore, the water inlet end of the through cavity is initially blocked by the pipe wall of the drip irrigation pipe.

[0010] Furthermore, it also includes a connecting rod, which is rotatably connected to the first sliding plug. The drip irrigation pipe is rotatably connected to a rotating disk for pushing and pulling the sliding plate to move up and down.

[0011] Furthermore, the rotating disk is provided with an arcuate groove, one end of the arcuate groove is located at the distal end of the rotating disk, and the other end of the arcuate groove is located at the proximal end of the rotating disk. The rotating disk is movably connected to the sliding plate through the arcuate groove.

[0012] Furthermore, the invention also includes a second spring, which is fixed between the drip irrigation pipe and the second sliding plug.

[0013] Furthermore, it also includes a pushing block for pushing the second sliding plug to move so that the water outlet and the water tank outlet are misaligned, and the pushing block is fixed to the outer edge of the rotating disk.

[0014] Furthermore, a side of the pushing block close to the second sliding plug is configured as an arc surface, so that the second sliding plug can smoothly transition from the outer edge of the rotating disk to the outer edge of the pushing block.

[0015] The beneficial effects are: this device automatically opens the pressure relief channel when the water pressure in the drip irrigation pipe increases by arranging a sliding plug, a spring and related linkage mechanisms, and returns excess water to the water tank, effectively preventing the system from being impacted by excessive water pressure; when the water pressure decreases, the water supply path of the water tank is automatically restored, and water is replenished by gravity to maintain the minimum working pressure of the system, thereby ensuring the continuity and stability of the drip irrigation process, and the pressure stabilization structure is simple and the cost is low.

[0016] This device uses a purely mechanical linkage method to achieve water pressure regulation, without relying on external power supply or complex control systems. It has fast response speed, high reliability, and is suitable for a variety of field environments.

[0017] Under high pressure, this device not only reduces pressure through the pressure relief port, but also drives the sliding plate through the rotating disk to trigger the one-way valve to further accelerate the backflow, forming a two-stage pressure relief mechanism to improve the safety and regulation accuracy of the system.

[0018] The device has a simple overall structure, few parts, and is easy to assemble and maintain. At the same time, it reduces water waste through water circulation and reflux, meeting the development needs of green agriculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the water tank, drip irrigation pipe and return pipe of the present invention.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the drip irrigation pipe, the first sliding plug, the first spring and other components of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding plate, one-way valve, bellows and other components of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the return pipe, bellows and fixed pipe components of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the one-way valve, bellows, fixed pipe and other components of the present invention.

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the second sliding plug, the second spring, the push block and other components of the present invention.

[0026] Among them, the above-mentioned drawings include the following figure marks: 101, base, 102, water tank, 1021, water pump, 103, drip irrigation pipe, 1031, drip irrigation head, 104, first sliding plug, 105, first spring, 106, return pipe, 107, second sliding plug, 108, water outlet, 201, connecting rod, 202, rotating disk, 203, sliding plate, 204, one-way valve, 205, bellows, 206, fixed pipe, 207, through cavity, 301, second spring, 302, push block. DETAILED DESCRIPTION

[0027] The following further describes the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0028] Example 1: A constant pressure drip irrigation device for Chinese herbal medicine planting, such as Figure 1-Figure 3As shown, it includes a base 101, a water tank 102 is fixedly connected to the base 101, a drip irrigation pipe 103 is connected to a water pump 1021, and the water pump 1021 is used to provide basic water delivery force. The base 101 is fixed with a drip irrigation pipe 103, and the bottom of the drip irrigation pipe 103 is connected to four drip irrigation heads 1031 distributed at equal intervals. The drip irrigation head 1031 can be a solenoid valve to control its opening and closing. The right end of the drip irrigation pipe 103 is connected to the first drip irrigation head 1031 along the left and right directions. A sliding plug 104 is provided. An opening is provided on the right side of the top of the drip irrigation pipe 103. The first sliding plug 104 blocks the opening. A first spring 105 is fixedly connected between the first sliding plug 104 and the drip irrigation pipe 103. A return pipe 106 is connected between the right side of the drip irrigation pipe 103 and the water tank 102. When the first sliding plug 104 slides to the right and no longer blocks the opening on the right side of the top of the irrigation pipe 103, the drip irrigation pipe 103 is connected to the return pipe 106 through the opening. Figure 7 As shown, a second sliding plug 107 is slidably connected to the left side of the drip irrigation pipe 103. A water outlet 108 is opened on the second sliding plug 107. The water outlet 108 is aligned with the outlet of the water tank 102. At this time, if there is water in the water tank 102, the water in it will flow downward into the drip irrigation pipe 103 through the water outlet 108.

[0029] like Figure 4-Figure 6 As shown, it also includes a connecting rod 201, which is rotatably connected to the first sliding plug 104. The drip irrigation pipe 103 is rotatably connected to a rotating disk 202. An arc groove is opened on the upper left side of the rotating disk 202. The upper right end of the arc groove is located at the distal end of the rotating disk 202, and the lower left end of the arc groove is located at the proximal end of the rotating disk 202. The left part of the drip irrigation pipe 103 is connected to a sliding plate 203 in an up and down sliding direction. The rotating disk 202 is movably connected to the sliding plate 203 through the arc groove, which is used to push and pull the sliding plate 203 up and down. The top of the sliding plate 203 is connected to the upper left side of the rotating disk 202. There is a one-way valve 204, and the top of the one-way valve 204 is connected to a bellows 205, which can be extended and retracted up and down to adapt to the up and down movement of the sliding plate 203. A fixed tube 206 is fixed between the bellows 205 and the return pipe 106. A through cavity 207 is opened in the sliding plate 203, and the sliding plate 203 is connected to the one-way valve 204 through the through cavity 207. The water inlet end of the through cavity 207 is initially blocked by the wall of the drip irrigation pipe 103. When the water inlet end of the through cavity 207 extends downward into the drip irrigation pipe 103, part of the water in the drip irrigation pipe 103 will flow back into the return pipe 106.

[0030] like Figure 7As shown, a second spring 301 is also included. The second spring 301 is fixed between the drip irrigation pipe 103 and the second sliding plug 107. A pushing block 302 is fixed to the outer edge of the rotating disk 202. The pushing block 302 is used to push the second sliding plug 107 to the left so that the water outlet 108 is misaligned with the outlet of the water tank 102. The left side of the pushing block 302 is set as an arc surface for the second sliding plug 107 to smoothly transition from the outer edge of the rotating disk 202 to the outer edge of the pushing block 302.

[0031] Working principle: When using this mechanical constant pressure drip irrigation device for drip irrigation in a Chinese herbal medicine planting base, directly start the water pump 1021 to input external water into the drip irrigation pipe 103. If the water pressure in the drip irrigation pipe 103 is stable, then when all the drip irrigation heads 1031 are opened synchronously, the water injected into the Chinese herbal medicine planting ground from each drip irrigation head 1031 will drip out at a steady pressure. During this process, the first sliding plug 104 will slide slightly to the right under the action of the water pressure, but it will still block the opening of the drip irrigation pipe 103, and the first spring 105 will be stretched.

[0032] If the water pressure in the drip irrigation pipe 103 is too high, the first sliding plug 104 will slide to the right due to the residual pressure to open the opening of the drip irrigation pipe 103. The first spring 105 will continue to be stretched, and a part of the water in the drip irrigation pipe 103 will flow through the opening into the return pipe 106 and then back into the water tank 102 through the return pipe 106. In this way, the pressure relief effect is achieved, so that when the power is turned on, the water injected into the Chinese herbal medicine planting field by each drip irrigation head 1031 still drips out at a stable pressure; During the rightward movement of the first sliding plug 104, the first sliding plug 104 pulls the rotating disk 202 to rotate via the connecting rod 201, thereby driving the pushing block 302 to rotate until it contacts the right end of the second sliding plug 107 and gradually squeezes the second sliding plug 107 to slide leftward. The second spring 301 is compressed, causing the water outlet 108 to be misaligned with the outlet of the water tank 102, thereby preventing the water in the water tank 102 from flowing out. When the first sliding plug 104 slides to the right to open the opening on the right side of the drip irrigation pipe 103, the rotating disk 202 pulls the sliding plate 203 downward through the extrusion groove to slide to the water inlet end of the through cavity 207 and extend downward into the drip irrigation pipe 103, so that a portion of the water in the drip irrigation pipe 103 enters the one-way valve 204 through the through cavity 207, and then enters the fixed pipe 206 through the bellows 205, and finally enters the water tank 102 through the return pipe 106. In this way, when the pressure is high, the backflow is accelerated, the pressure relief effect is further improved, and the stability of the drip irrigation water pressure is maintained.

[0033] If the water pressure in the drip irrigation pipe 103 is too low, the first sliding plug 104 will automatically move to the left and reset due to the reset action of the first spring 105, so that the opening of the drip irrigation pipe 103 is blocked again. The first sliding plug 104 pushes the rotating disk 202 to rotate in the opposite direction through the connecting rod 201 until the push block 302 disengages from the second sliding plug 107. The second spring 301 resets, driving the second sliding plug 107 to slide to the right, restoring the initial state in which the water outlet 108 is aligned with the outlet of the water tank 102. In this way, the gravity of the water in the water tank 102 provides a certain water pressure (hydrostatic pressure) to compensate for the water pressure in the drip irrigation pipe 103, thereby maintaining the stability of the drip irrigation water pressure.

[0034] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A constant pressure drip irrigation device for Chinese herbal medicine planting, comprising a base (101), a water tank (102) fixedly connected to the base (101), a drip irrigation pipe (103) fixedly connected to the base (101), the drip irrigation pipe (103) being connected to drip irrigation heads (1031) distributed at equal intervals, wherein: One end of the drip irrigation water pipe (103) is slidably connected to a first sliding plug (104); an opening is provided on a side of the drip irrigation water pipe (103) close to the first sliding plug (104); the first sliding plug (104) blocks the opening; a first spring (105) is fixedly connected between the first sliding plug (104) and the drip irrigation water pipe (103); a return pipe (106) is connected between the side of the drip irrigation water pipe (103) close to the first sliding plug (104) and the water tank (102); a second sliding plug (107) is slidably connected to the side of the drip irrigation water pipe (103) close to the water tank (102); the second sliding plug (107) is provided with a water outlet (108); and the water outlet (108) is aligned with the outlet of the water tank (102).

2. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 1, characterized in that: It also includes a water pump (1021), the output end of the water pump (1021) being in communication with the drip irrigation pipe (103).

3. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 2, characterized in that: The invention also includes a sliding plate (203), wherein the sliding plate (203) is slidably connected to the drip irrigation pipe (103), the sliding plate (203) is connected to a one-way valve (204), the one-way valve (204) is connected to a bellows (205), a fixed pipe (206) is fixed between the bellows (205) and the return pipe (106), and the sliding plate (203) is provided with a through cavity (207), and the sliding plate (203) is connected to the one-way valve (204) through the through cavity (207).

4. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 3, characterized in that: The water inlet end of the through cavity (207) is initially blocked by the pipe wall of the drip irrigation pipe (103).

5. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 4, characterized in that: It also includes a connecting rod (201), the connecting rod (201) is rotatably connected to the first sliding plug (104), and the drip irrigation pipe (103) is externally rotatably connected to a rotating disk (202) for pushing and pulling the sliding plate (203) to move up and down.

6. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 5, characterized in that: The rotating disk (202) is provided with an arcuate groove, one end of the arcuate groove is located at the distal end of the rotating disk (202), and the other end of the arcuate groove is located at the proximal end of the rotating disk (202), and the rotating disk (202) is movably connected to the sliding plate (203) via the arcuate groove.

7. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 6, characterized in that: It also includes a second spring (301), which is fixed between the drip irrigation pipe (103) and the second sliding plug (107).

8. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 7, characterized in that: It also includes a pushing block (302) for pushing the second sliding plug (107) to move so that the water outlet (108) and the outlet of the water tank (102) are misaligned, and the pushing block (302) is fixed to the outer edge of the rotating disk (202).

9. A constant pressure drip irrigation device for Chinese herbal medicine planting according to claim 8, characterized in that: A side of the pushing block (302) close to the second sliding plug (107) is configured as an arc surface, so as to allow the second sliding plug (107) to smoothly transition from the outer edge of the rotating disk (202) to the outer edge of the pushing block (302).

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