A water-saving irrigation device for pitaya trees

Abstract

The present invention relates to the technical field of pitaya tree planting, and particularly relates to a water-saving irrigation device for pitaya trees. It includes a water storage tank, and several groups of first return water pipes are evenly distributed at equal intervals on both sides of the water storage tank. The other end of the first return water pipe is connected to a root waterproof unit, and an irrigation unit is arranged below the root waterproof unit; the root waterproof unit includes several groups of outer mounting rings; several groups of the outer mounting rings are sequentially connected in the vertical direction, and the cavities of several groups of the outer mounting rings are all interconnected. The present invention avoids that when there is more rainfall, a large amount of rainwater will penetrate into the soil layer where the roots of the pitaya tree are located, so that the pitaya tree will not be damaged due to excessive water absorption. It not only improves the quality of the pitaya tree, but also saves water resources because the rainwater is collected and used for irrigation.

Description

Technical Field

[0001] The present invention belongs to the technical field of pitaya tree planting, and particularly relates to a water-saving irrigation device for pitaya trees. Background Art

[0002] Pitaya trees belong to plants that do not like much water, and they have low requirements for the amount of irrigation. Once planted in seasons or regions with more rainfall, it is easy to damage the pitaya trees because the roots of the pitaya trees absorb too much water.

[0003] After retrieval, the publication number is: CN218042964U, and the publication date is: December 16, 2022. It discloses an irrigation device for planting pitayas, including a water tank. A plurality of connecting pipes are connected to the bottom of the water tank, and a plurality of spray rings are respectively connected to the positions of the connecting pipes far away from the water tank. And the plurality of spray rings are arranged at intervals. A plurality of spray heads are provided on the inner wall and the lower end of the spray ring; an electric push rod is connected to the top of the water tank, and the end of the electric push rod away from the water tank is connected to the top of the greenhouse. The above embodiment does not require manual irrigation, reducing the labor intensity.

[0004] The above embodiment still has the following defects:

[0005] When the rainfall is large, the pitaya trees that do not like much water will be damaged due to excessive water absorption. If the greenhouse is directly used for rain protection, it will lead to insufficient light for the pitaya trees. At the same time, a large amount of water is required for irrigation work. If all the irrigation is carried out by the method of water injection, it will cause waste of water resources. Summary of the Invention

[0006] In view of the above problems, the present invention provides a water-saving irrigation device for pitaya trees, including a water storage tank. A plurality of groups of first return pipes are evenly distributed at equal intervals on both sides of the water storage tank. The other end of the first return pipe is connected to a root waterproof unit, and an irrigation unit is provided below the root waterproof unit;

[0007] The root waterproofing unit includes several groups of outer mounting rings; several groups of the outer mounting rings are connected in sequence in the vertical direction, and the cavities of several groups of the outer mounting rings are all communicated with each other; the cavity of the lowermost group of outer mounting rings is communicated with a corresponding group of first return water pipes; several groups of first water permeable pipes are distributed in an annular array on the inner wall of the outer mounting ring, several groups of first water permeable fine holes are evenly distributed on the first water permeable pipes, and the first water permeable fine holes are communicated with the cavity of the outer mounting ring through the first water permeable pipes; a second water permeable pipe is communicated with the first water permeable pipe, and several groups of second water permeable fine holes are evenly distributed on the second water permeable pipe; several groups of the second water permeable pipes are combined to form an annular structure; the first water permeable pipe includes two groups of circular pipes, and a telescopic sleeve is communicated between the two groups of circular pipes; one end of the first water permeable pipe away from the outer mounting ring is provided with a pressing plate; a soil breaking block is arranged on a side wall of the pressing plate close to the first water permeable pipe, and the soil breaking block is of a conical structure.

[0008] Compared with the group of outer mounting rings adjacent to its top, each group of outer mounting rings deflects around its central axis, and the deflection angle is less than the included angle between two adjacent groups of first water permeable pipes.

[0009] Furthermore, a group of ground waterproofing units are arranged between two adjacent groups of the root waterproofing units, the output end of the ground waterproofing unit is communicated with the input end of the water storage tank, and the height of the top of the ground waterproofing unit is higher than the height of the top of the root waterproofing unit.

[0010] Furthermore, two liquid level sensors are arranged in the water storage tank, and the heights of the two liquid level sensors are different; a water injection pipe and an anti-overflow water pipe are respectively communicated with the top of the water storage tank, the control mechanism of the water injection pipe is electrically connected with the liquid level sensor with a lower height, and the control mechanism of the anti-overflow water pipe is electrically connected with the liquid level sensor with a higher height.

[0011] Furthermore, several groups of irrigation outlet pipes with the same number as the irrigation units are communicated with the side wall of the water storage tank, and each group of irrigation outlet pipes is communicated with a corresponding group of irrigation units.

[0012] Furthermore, the irrigation unit includes a spiral irrigation pipe; the spiral irrigation pipe is located directly below a corresponding group of root waterproofing units, and the spiral irrigation pipe is of a spiral structure.

[0013] Furthermore, the input end of the spiral irrigation pipe is communicated with a corresponding group of irrigation outlet pipes, a humidity sensor is installed on the spiral irrigation pipe, and the humidity sensor is electrically connected with the control mechanism of the corresponding group of irrigation outlet pipes; several groups of water outlet balls are evenly distributed on the spiral irrigation pipe, the water outlet balls are of spherical structures, and several groups of high-pressure water outlet holes are evenly distributed on the water outlet balls.

[0014] Further, the ground waterproofing unit includes a second water return pipe; the output end of the second water return pipe communicates with the cavity of the water storage tank; a water return pipe connection is connected to the top of the second water return pipe.

[0015] Further, a first outer collection pipe is installed at the top of the water return pipe connection. A top groove is provided at the top of the first outer collection pipe. An inner collection pipe is provided on the inner wall of the bottom of the top groove. A number of groups of collection pipe water inlet holes are equally spaced on the inner collection pipe. The bottom of the inner collection pipe communicates with the water return pipe connection.

[0016] Further, the ground waterproofing unit further includes a second outer collection pipe. The second outer collection pipe is connected to the top of the water return pipe connection. The direction of the second outer collection pipe is the same as that of the second water return pipe. And two groups of water collection plates are symmetrically arranged on both sides of the top of the second outer collection pipe. The water collection plate is a plate-like structure with a fan-shaped ring cross-section in side view.

[0017] Further, the cavity of the water collection plate communicates with the cavity of the water return pipe connection; a number of groups of water collection convex strips are arranged at equal intervals along the length direction of the top of the water collection plate. The inner cavity of the water collection convex strip communicates with the inner cavity of the water collection plate; a number of groups of convex strip water inlet holes are evenly distributed on the surface of the water collection convex strip.

[0018] The beneficial effects of the present invention are:

[0019] 1. The combined structure of each group of first water permeable pipes and second water permeable pipes in an annular array forms a grid-like structure. Since each outer installation ring is deflected compared with the group above it, the contact area with rainwater is increased, and rainwater is prevented from leaking through the gaps in the grid-like structure. When precipitation occurs, rainwater penetrates from the soil surface to the outer installation ring, contacts the first water permeable pipe and the second water permeable pipe, and enters each group of first water permeable holes or second water permeable holes, and finally drains into the water storage tank. This prevents a large amount of rainwater from penetrating into the soil layer where the roots of the pitaya tree are located when there is more rainfall, so that the pitaya tree will not be damaged due to excessive water absorption. This not only improves the quality of the pitaya tree, but also saves water resources because the collected rainwater is used for irrigation.

[0020] 2. The spiral irrigation pipe is set in a spiral structure, and spherical water outlet balls are evenly distributed on the spiral irrigation pipe. Then it is placed at the root of the pitaya tree. When irrigation is needed, water will be irrigated from different directions and different heights at the root of the pitaya tree, making the irrigation water contacted by any part of the root of the pitaya tree more evenly distributed, thus improving the irrigation effect. At the same time, the soil humidity around the root of the pitaya tree is monitored in real time by the humidity sensor. When the soil humidity is lower than the set threshold, the water in the water storage tank is injected into the spiral irrigation pipe by the control mechanism of the irrigation outlet pipe, thus realizing the function of automatic irrigation.

[0021] 3. By setting two groups of liquid level sensors with different heights, when the water level in the water storage tank is lower than the lower group of liquid level sensors, water is injected into the water storage tank through the water injection pipe to ensure the normal progress of irrigation work. When the water level in the water storage tank is higher than the higher group of liquid level sensors, it is discharged through the anti-overflow water pipe, thus achieving the effect of automatic water injection.

[0022] 4. When it rains, the rainwater falls on the top of the first outer collection pipe and enters the top groove, then sequentially passes through the collection pipe water inlet hole, the inner collection pipe, the return water pipe connection and the second return water pipe, and finally enters the water storage tank. This not only prevents the rainwater from seeping down through the soil on the side of the pitaya tree, but also avoids water accumulation on the soil surface. At the same time, the rainwater can be recycled for subsequent irrigation work.

[0023] Other features and advantages of the present invention will be described in the subsequent description, and part of them will be obvious from the description, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained through the structures pointed out in the description, the claims and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Shows a schematic structural diagram of the irrigation device according to Embodiment 1 of the present invention;

[0026] Figure 2 Shows a schematic connection diagram of the root waterproof unit and the irrigation unit according to Embodiment 1 of the present invention;

[0027] Figure 3 Shows an exploded schematic diagram of the root waterproof unit according to Embodiment 1 of the present invention;

[0028] Figure 4 Shows a schematic connection diagram of the first permeable water pipe and the second permeable water pipe according to Embodiment 1 of the present invention;

[0029] Figure 5 Shows a schematic structural diagram of the first permeable water pipe according to Embodiment 1 of the present invention;

[0030] Figure 6 Shows a schematic structural diagram of the irrigation unit according to Embodiment 1 of the present invention;

[0031] Figure 7Shows the one according to Embodiment 1 of the present invention Figure 6 The enlarged schematic diagram within circle A in

[0032] Figure 8 Shows the structural schematic diagram of the ground waterproof unit according to Embodiment 1 of the present invention

[0033] Figure 9 Shows the one according to Embodiment 1 of the present invention Figure 8 The enlarged schematic diagram within circle B in

[0034] Figure 10 Shows the structural schematic diagram of the ground waterproof unit according to Embodiment 2 of the present invention

[0035] In the figure: 100, water storage tank; 110, water injection pipe; 120, anti - overflow water pipe; 130, first return water pipe; 140, irrigation outlet pipe; 200, root waterproof unit; 210, outer installation ring; 220, first permeable water pipe; 221, first permeable water pores; 230, second permeable water pipe; 231, second permeable water pores; 240, telescopic sleeve; 250, abutting plate; 300, irrigation unit; 310, spiral irrigation pipe; 320, water outlet ball; 330, high - pressure water outlet holes; 400, ground waterproof unit; 410, second return water pipe; 420, return water pipe connection; 430, first outer collection pipe; 431, top groove; 440, inner collection pipe; 441, collection pipe water inlet hole; 450, second outer collection pipe; 460, water collection plate; 470, water collection convex strip; 480, convex strip water inlet hole Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0037] Embodiment 1:

[0038] The embodiment of the present invention provides a water - saving irrigation device for pitaya trees, including a water storage tank 100. Exemplarily, as Figure 1 shown, a number of groups of root waterproof units 200 are evenly distributed at equal intervals on both sides of the water storage tank 100. The output end of the root waterproof unit 200 is communicated with the input end of the water storage tank 100. The root waterproof unit 200 is used to prevent rainwater from penetrating into the soil layer where the roots of the pitaya tree are located when there is too much rain

[0039] Below each group of the root waterproof units 200, there is a group of irrigation units 300. The input end of the irrigation unit 300 is communicated with the output end of the water storage tank 100. The irrigation unit 300 is used for irrigating the pitaya trees.

[0040] Between two adjacent groups of the root waterproof units 200, there is a group of ground waterproof units 400. The output end of the ground waterproof unit 400 is communicated with the input end of the water storage tank 100, and the height of the top of the ground waterproof unit 400 is higher than the height of the top of the root waterproof unit 200. The ground waterproof unit 400 is used for collecting and draining the surface water between two pitaya trees, so as to prevent water from seeping into the roots of the pitaya trees from the side.

[0041] Exemplarily, there are two liquid level sensors in the water storage tank 100. The heights of the two liquid level sensors are different, and the model of the liquid level sensor is CYW11. The top of the water storage tank 100 is respectively communicated with a water injection pipe 110 and an anti-overflow water pipe 120. The control mechanism of the water injection pipe 110 is electrically connected with the liquid level sensor of the lower group, and the control mechanism of the anti-overflow water pipe 120 is electrically connected with the liquid level sensor of the higher group. A plurality of first return water pipes 130 with the same number as the root waterproof units 200 are communicated on the side wall of the water storage tank 100. Each group of the first return water pipes 130 is communicated with a corresponding group of root waterproof units 200. A plurality of irrigation outlet pipes 140 with the same number as the irrigation units 300 are communicated on the side wall of the water storage tank 100. Each group of the irrigation outlet pipes 140 is communicated with a corresponding group of irrigation units 300.

[0042] First, place the water storage tank 100, and let the tops of the water injection pipe 110 and the anti-overflow water pipe 120 expose above the soil surface. Then place each group of root waterproof units 200, irrigation units 300 and ground waterproof units 400 in the soil, and make the tops of the ground waterproof units 400 expose above the soil surface. Then plant the pitaya tree seedlings from the center of the root waterproof units 200, and make the height of the root waterproof units 200 higher than the height of the roots of the pitaya tree seedlings. When it rains, the rainwater seeping from the ground is collected by each group of root waterproof units 200 and each group of ground waterproof units 400 and injected into the water storage tank 100. It can not only prevent excessive rainwater from damaging the pitaya tree seedlings, but also collect the rainwater for irrigation, thus saving water resources. When the water level in the water storage tank 100 is lower than the lower liquid level sensor, water is injected into the water storage tank 100 through the water injection pipe 110 to ensure the normal progress of the irrigation work. When the water level in the water storage tank 100 is higher than the higher liquid level sensor, it is discharged through the anti-overflow water pipe 120, so as to achieve the effect of automatic irrigation.

[0043] The root waterproof unit 200 includes a plurality of outer mounting rings 210. Exemplarily, such asFigure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , several groups of the outer mounting rings 210 are connected in sequence in the vertical direction, and the cavities of several groups of the outer mounting rings 210 are all communicated with each other. The cavity of the lowermost group of outer mounting rings 210 is communicated with a corresponding group of first return water pipes 130. A plurality of groups of first water-permeable pipes 220 are distributed in an annular array on the inner wall of the outer mounting ring 210. A plurality of groups of first water-permeable pores 221 are evenly distributed on the first water-permeable pipes 220. The first water-permeable pores 221 are communicated with the cavity of the outer mounting ring 210 through the first water-permeable pipes 220. A second water-permeable pipe 230 is communicated with the first water-permeable pipe 220. The second water-permeable pipe 230 is a tubular structure with a fan-shaped cross-section in a top view. A plurality of groups of second water-permeable pores 231 are evenly distributed on the second water-permeable pipe 230. Several groups of the second water-permeable pipes 230 are combined to form an annular structure. The first water-permeable pipe 220 includes two groups of circular pipes, and a telescopic sleeve 240 is communicated between the two groups of circular pipes. One end of the first water-permeable pipe 220 far from the outer mounting ring 210 is provided with a retaining plate 250. A soil-breaking block is provided on a side wall of the retaining plate 250 close to the first water-permeable pipe 220. The soil-breaking block is a conical structure.

[0044] Further, compared with a group of outer mounting rings 210 adjacent to its top, each group of the outer mounting rings 210 is deflected around its central axis, and the deflection angle is smaller than the included angle between two adjacent groups of first water-permeable pipes 220.

[0045] The grid-like structure can be formed by combining each group of the first water-permeable pipes 220 and each group of the second water-permeable pipes 230 in an annular array. And compared with a group of outer mounting rings 210 adjacent to its top, each group of the outer mounting rings 210 is deflected around its central axis. Therefore, the combined grid-like structures increase the contact area with rainwater in the vertical direction and prevent rainwater from leaking through the gaps of the grid-like structure. When precipitation occurs, rainwater penetrates downward from the soil surface. When it penetrates to the height of the outer mounting ring 210, it contacts the first water-permeable pipes 220 and the second water-permeable pipes 230 and enters each group of the first water-permeable pores 221 or the second water-permeable pores 231, and finally is discharged into the water storage tank 100. This avoids that when there is more rainfall, a large amount of rainwater will penetrate into the soil layer where the roots of the pitaya trees are located, and thus avoids the damage to the pitaya trees caused by the excessive water absorption of the roots of the pitaya trees. It not only improves the quality of the pitaya trees, but also saves water resources because the collected rainwater is used for irrigation.

[0046] The irrigation unit 300 includes a spiral irrigation pipe 310. Exemplarily, as Figure 6 and Figure 7, the spiral irrigation pipe 310 is located directly below a corresponding set of root waterproof units 200, and the spiral irrigation pipe 310 is in a spiral structure. The input end of the spiral irrigation pipe 310 is connected to a corresponding set of irrigation outlet pipes 140. A humidity sensor is installed on the spiral irrigation pipe 310, and the humidity sensor is electrically connected to the control mechanism of the corresponding set of irrigation outlet pipes 140. The model of the humidity sensor is PR-3000-TR-*. A number of groups of water outlet balls 320 are evenly distributed on the spiral irrigation pipe 310. The water outlet balls 320 are in a spherical structure, and a number of groups of high-pressure water outlet holes 330 are evenly distributed on the water outlet balls 320.

[0047] The spiral irrigation pipe 310 is set to be in a spiral structure, and the spherical water outlet balls 320 are evenly distributed on the spiral irrigation pipe 310. Then it is placed at the root of the pitaya tree. When irrigation is needed, water will be irrigated from different directions and different heights at the root of the pitaya tree, making the irrigation water contacted by any part of the pitaya tree root more even, thus improving the irrigation effect. At the same time, the humidity sensor is used to monitor the soil humidity around the root of the pitaya tree in real time. When the soil humidity is lower than the set threshold, the control mechanism of the irrigation outlet pipe 140 is used to inject the water in the water storage tank 100 into the spiral irrigation pipe 310, thus realizing the function of automatic irrigation.

[0048] The ground waterproof unit 400 includes a second return pipe 410. Exemplarily, as Figure 8 and Figure 9 shown, the output end of the second return pipe 410 is communicated with the cavity of the water storage tank 100. A return pipe joint 420 is connected to the top of the second return pipe 410. A first outer collection pipe 430 is installed on the top of the return pipe joint 420. A top groove 431 is opened at the top of the first outer collection pipe 430. An inner collection pipe 440 is provided on the inner wall of the bottom of the top groove 431. A number of groups of collection pipe water inlet holes 441 are evenly distributed on the inner collection pipe 440. The bottom of the inner collection pipe 440 is communicated with the return pipe joint 420.

[0049] When it rains, the rainwater falls on the top of the first outer collection pipe 430 and enters the top groove 431, and then successively passes through the collection pipe water inlet holes 441, the inner collection pipe 440, the return pipe joint 420 and the second return pipe 410, and finally enters the water storage tank 100, which can not only prevent the rainwater from seeping down from the soil on the side of the pitaya tree, but also avoid water accumulation on the soil surface. At the same time, the rainwater can be recycled for subsequent irrigation work.

[0050] Example 2:

[0051] An embodiment of the present invention further provides a water-saving irrigation device for pitaya trees, including a water storage tank 100, a root waterproof unit 200, an irrigation unit 300, and a ground waterproof unit 400. Exemplarily, the structures of the water storage tank 100, the root waterproof unit 200, the irrigation unit 300, the second return pipe 410, and the return pipe joint 420 are the same as those in Embodiment 1.

[0052] Exemplarily, as Figure 10 shown, a second outer collection pipe 450 is connected to the top of the return pipe joint 420. The direction of the second outer collection pipe 450 is the same as that of the second return pipe 410. Two groups of water collection plates 460 are symmetrically arranged on both sides of the top of the second outer collection pipe 450. The water collection plate 460 is a plate-like structure with a fan-shaped ring cross-section in side view. The cavity of the water collection plate 460 is communicated with the cavity of the return pipe joint 420. A number of groups of water collection ridges 470 are arranged at equal intervals along the length direction of the top of the water collection plate 460. The inner cavity of the water collection ridge 470 is communicated with the inner cavity of the water collection plate 460. A number of groups of ridge water inlet holes 480 are evenly distributed on the surface of the water collection ridge 470.

[0053] The second outer collection pipe 450 is placed in the soil between two adjacent pitaya trees, and the water collection plate 460 is located on the soil surface. When it rains, the rainwater falls on the water collection plate 460 and enters the water collection ridges 470 through the ridge water inlet holes 480, and finally enters the second outer collection pipe 450 through the inclination angle of the water collection plate 460. It not only realizes anti-seepage and rainwater collection, but also increases the contact area with rainwater due to the addition of the water collection plate 460. At the same time, since the height of the water collection ridges 470 is higher than that of the water collection plate 460, soil or impurities will not block the ridge water inlet holes 480 for drainage, improving the drainage smoothness.

[0054] The present invention has the following beneficial effects:

[0055] 1. The combined grid-like structure formed by each group of first permeable pipes 220 and second permeable pipes 230 in an annular array. Since each outer mounting ring 210 is deflected compared to the group above it, the contact area with rainwater is increased, preventing rainwater from leaking through the gaps in the grid-like structure. When precipitation occurs, when the rainwater seeps down from the soil surface to the outer mounting ring 210, it contacts the first permeable pipes 220 and the second permeable pipes 230 and enters each group of first permeable pores 221 or second permeable pores 231, and finally drains into the water storage tank 100. This avoids a large amount of rainwater from seeping into the soil layer where the roots of the pitaya trees are located when there is more rain, so that the pitaya trees will not be damaged due to excessive water absorption. It not only improves the quality of the pitaya trees, but also saves water resources because the rainwater is collected for irrigation.

[0056] 2. The spiral irrigation pipe 310 is set to a spiral structure, and spherical water outlet balls 320 are evenly distributed on the spiral irrigation pipe 310. Then it is placed at the root of the pitaya tree. When irrigation is needed, water will irrigate from different positions and different heights around the root of the pitaya tree, making the irrigation water contacted by any part of the root of the pitaya tree more evenly distributed, thus improving the irrigation effect. At the same time, a humidity sensor is used to monitor the soil humidity around the root of the pitaya tree in real time. When the soil humidity is lower than the set threshold, the control mechanism of the irrigation outlet pipe 140 is used to inject the water in the water storage tank 100 into the spiral irrigation pipe 310, thereby realizing the function of automatic irrigation.

[0057] 3. By setting two groups of liquid level sensors with different heights, when the water level in the water storage tank 100 is lower than the lower group of liquid level sensors, water is injected into the water storage tank 100 through the water injection pipe 110 to ensure the normal progress of the irrigation work. When the water level in the water storage tank 100 is higher than the higher group of liquid level sensors, it is discharged through the anti-overflow water pipe 120, thereby realizing the effect of automatic water injection.

[0058] 4. When it rains, the rainwater falls on the top of the first outer collection pipe 430 and enters the top groove 431, and then successively passes through the collection pipe water inlet hole 441, the inner collection pipe 440, the return water pipe connection 420 and the second return water pipe 410, and finally enters the water storage tank 100. This not only prevents the rainwater from seeping down through the soil on the side of the pitaya tree, but also avoids water accumulation on the soil surface. At the same time, the rainwater can be recycled for subsequent irrigation work.

[0059] 5. When it rains, the rainwater falls on the water collection plate 460 and enters the water collection ridges 470 through the ridge water inlet holes 480, and finally enters the second outer collection pipe 450 through the inclined angle of the water collection plate 460. This not only realizes anti-seepage and rainwater collection, but also increases the contact area with the rainwater due to the addition of the water collection plate 460. At the same time, since the height of the water collection ridges 470 is higher than that of the water collection plate 460, soil or impurities will not block the ridge water inlet holes 480 for water drainage, improving the drainage smoothness.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water-saving irrigation device for pitaya trees, Characterized in that: It includes a water storage tank (100), and several groups of first return water pipes (130) are evenly distributed at equal intervals on both sides of the water storage tank (100). The other end of the first return water pipe (130) is communicated with a root waterproof unit (200), and an irrigation unit (300) is arranged below the root waterproof unit (200); The root waterproof unit (200) includes several groups of outer mounting rings (210); several groups of the outer mounting rings (210) are connected in sequence in the vertical direction, and the cavities of several groups of the outer mounting rings (210) are all communicated with each other; the cavity of the lowermost group of outer mounting rings (210) is communicated with a corresponding group of first return water pipes (130); several groups of first water permeable pipes (220) are distributed in a circular array on the inner wall of the outer mounting ring (210), and several groups of first water permeable fine holes (221) are evenly distributed on the first water permeable pipe (220). The first water permeable fine holes (221) are communicated with the cavity of the outer mounting ring (210) through the first water permeable pipe (220); a second water permeable pipe (230) is communicated with the first water permeable pipe (220), and several groups of second water permeable fine holes (231) are evenly distributed on the second water permeable pipe (230); several groups of the second water permeable pipes (230) are combined to form a circular ring structure; the first water permeable pipe (220) includes two groups of circular pipes, and a telescopic sleeve (240) is communicated between the two groups of circular pipes; one end of the first water permeable pipe (220) away from the outer mounting ring (210) is provided with a resisting plate (250); a soil-breaking block is arranged on the side wall of the resisting plate (250) close to the first water permeable pipe (220), and the soil-breaking block is a conical structure; Compared with the outer mounting ring (210) adjacent to its top in each group, each outer mounting ring (210) deflects around its central axis, and the deflection angle is smaller than the included angle between adjacent two groups of first water permeable pipes (220); The irrigation unit (300) includes a spiral irrigation pipe (310); the spiral irrigation pipe (310) is located directly below a corresponding group of root waterproof units (200), and the spiral irrigation pipe (310) is a spiral structure; several groups of water outlet balls (320) are evenly distributed on the spiral irrigation pipe (310), the water outlet balls (320) are spherical structures, and several groups of high-pressure water outlet holes (330) are evenly distributed on the water outlet balls (320); A group of ground waterproof units (400) are arranged between adjacent two groups of the root waterproof units (200), The ground waterproof unit (400) includes a second return water pipe (410); the output end of the second return water pipe (410) is communicated with the cavity of the water storage tank (100); a return water pipe connecting pipe (420) is communicated with the top of the second return water pipe (410); A first outer collecting pipe (430) is installed at the top of the return water pipe connection (420). A top groove (431) is formed at the top of the first outer collecting pipe (430). An inner collecting pipe (440) is provided on the inner wall of the bottom of the top groove (431). A number of groups of collecting pipe water inlet holes (441) are evenly distributed on the inner collecting pipe (440). The bottom of the inner collecting pipe (440) is communicated with the return water pipe connection (420). The ground waterproof unit (400) further includes a second outer collecting pipe (450). The second outer collecting pipe (450) is communicated at the top of the return water pipe connection (420). The direction of the second outer collecting pipe (450) is the same as that of the second return water pipe (410). Two groups of water collecting plates (460) are symmetrically arranged on both sides of the top of the second outer collecting pipe (450). The water collecting plate (460) is a plate-like structure with a fan-shaped cross-section in side view. The cavity of the water collecting plate (460) is communicated with the cavity of the return water pipe connection (420). A number of groups of water collecting convex strips (470) are arranged at equal intervals along the length direction of the top of the water collecting plate (460). The inner cavity of the water collecting convex strip (470) is communicated with the inner cavity of the water collecting plate (460). A number of groups of convex strip water inlet holes (480) are evenly distributed on the surface of the water collecting convex strip (470).

2. A water-saving irrigation device for pitaya trees according to claim 1, characterized in that: The output end of the ground waterproof unit (400) is communicated with the input end of the water storage tank (100), and the height of the top of the ground waterproof unit (400) is higher than the height of the top of the root waterproof unit (200).

3. A water-saving irrigation device for pitaya trees according to claim 1, characterized in that: Two groups of liquid level sensors are provided in the water storage tank (100), and the heights of the two groups of liquid level sensors are different. A water injection pipe (110) and an anti-overflow water pipe (120) are respectively communicated at the top of the water storage tank (100). The control mechanism of the water injection pipe (110) is electrically connected to the liquid level sensor of the lower group in height, and the control mechanism of the anti-overflow water pipe (120) is electrically connected to the liquid level sensor of the higher group in height.

4. A water-saving irrigation device for pitaya trees according to claim 3, characterized in that: A number of groups of irrigation outlet pipes (140) equal to the number of irrigation units (300) are communicated on the side wall of the water storage tank (100). Each group of irrigation outlet pipes (140) is communicated with a corresponding group of irrigation units (300).

5. A water-saving irrigation device for pitaya trees according to claim 1, characterized in that: The input end of the spiral irrigation pipe (310) is communicated with a corresponding group of irrigation outlet pipes (140). A humidity sensor is installed on the spiral irrigation pipe (310), and the humidity sensor is electrically connected to the control mechanism of the corresponding group of irrigation outlet pipes (140).

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