Water-saving irrigation device and water-saving irrigation method suitable for sparse forest land

Abstract

The invention discloses a water-saving irrigation device suitable for sparse forest land and a water-saving irrigation method in the technical field of tree irrigation. The water-saving irrigation device comprises a shell; the sliding rack is mounted in an inner cavity of the shell in a reciprocating motion manner; the arc-shaped clamping jaws are arranged on the two sides of the sliding rack, and one end of each arc-shaped clamping jaw is rotationally connected with the shell through a rotating shaft; the transmission gear is mounted on the rotating shaft and is in meshed transmission connection with the sliding rack; the water inlet pipe is arranged in the arc-shaped clamping jaw; one end of the water inlet pipe extends out of the shell; and the adjusting handle is arranged above the shell, and the bottom end of the adjusting handle penetrates through the shell and is fixedly connected with the sliding rack. According to the water-saving irrigation device, the sliding rack is driven by the adjusting handle to drive the connecting ends of the two arc-shaped clamping jaws and the shell to rotate, so that the other ends of the two arc-shaped clamping jaws can be far away from or close to each other, the water-saving irrigation device can be clamped and fixed to tree trunks with different diameters, and the applicability of the water-saving irrigation device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tree irrigation, and in particular to a water-saving irrigation device and a water-saving irrigation method suitable for sparse woodlands. Background Art

[0002] Sparse woodlands are characterized by low tree cover and wide spacing between plants. These woodlands are typically found in arid and semi-arid regions or areas with complex terrain, and possess unique ecological characteristics and functional requirements. When irrigating these woodlands, the large spacing between plants makes spray irrigation extremely inefficient in terms of water resource utilization. This has led to the development of point-to-point irrigation, where individual plants are irrigated through irrigation devices. This not only facilitates control of irrigation water usage but also ensures that water directly reaches the root system, reducing water waste due to evaporation and deep seepage.

[0003] Patent document with publication number CN106900498A discloses a forest water-saving irrigation device, including a water pump, a towerless water supply device, a water supply main pipe and a water supply branch pipe, wherein the water supply branch pipe has multiple groups, and multiple connecting joints are provided on the water supply branch pipe, and a water supply device is provided on the connecting joint. The water supply device includes a water control pipe and an annular diversion pipe. The water supply device is connected to the connecting joint through one end of the water control pipe and communicates with the inside of the water supply branch pipe, and the other end of the water control pipe is connected to the middle of the annular diversion pipe. The annular diversion pipe is a circular water pipe and has a notch on the side opposite to the connection point. The above-mentioned forest water-saving irrigation device is simple to operate, makes water supply timely and effective, and can save a lot of water resources. The water supply device can be recycled and reused to save costs; a manual water valve and a hose are added to the water control pipe, and liquid fertilizer or disease-curing and insecticide can be applied to the seedlings according to the results of routine pest and disease monitoring and soil nutrient testing, which facilitates biological management, improves the survival rate of trees, and accelerates forest construction. However, in actual production activities, the annular diversion pipe of the above-mentioned forest water-saving irrigation equipment does not have the function of adapting to plants of different diameters, which greatly reduces its applicability. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a water-saving irrigation device suitable for sparse woodlands in order to solve the above technical problems, so that the water-saving irrigation device can be suitable for plants of different diameters.

[0005] The technical solution adopted by the present invention is: a water-saving irrigation device suitable for sparse woodlands, comprising: A shell, wherein a top of the shell is provided with an avoidance groove; A sliding rack, the sliding rack being reciprocally mounted in the inner cavity of the housing; Arc-shaped clamping jaws, two of which are arranged on both sides of the sliding rack, and one end of each arc-shaped clamping jaw is rotatably connected to the housing via a rotating shaft; A transmission gear is mounted on the rotating shaft and is meshed with the sliding rack for transmission connection; A water inlet pipe, wherein the water inlet pipe is arranged in the arc-shaped clamping jaw, and one end of the water inlet pipe extends to the outside of the shell; An adjusting handle is provided above the housing, wherein the bottom end of the adjusting handle passes through the avoidance groove and is fixedly connected to the sliding rack, so that the adjusting handle drives the sliding rack to move and drives the two arc-shaped clamping jaws to move away from or closer to each other; The arc-shaped clamping claw includes a fixed claw segment, a telescopic claw segment, a compression spring, a traction rope and a traction wheel. One end of the telescopic claw segment is slidably connected to the arc-shaped inner cavity of the fixed claw segment. The compression spring is arranged in the arc-shaped inner cavity of the fixed claw segment, and one end of the compression spring is connected to the fixed claw segment, and the other end of the compression spring is connected to the telescopic claw segment; the traction wheel is fixedly installed on the rotating shaft, one end of the traction rope is connected to the telescopic claw segment, and the other end of the traction rope is wound around the traction wheel.

[0006] Preferably, when the two arc-shaped clamping jaws move away from each other, the circumferential length of the arc-shaped clamping jaws gradually decreases, and when the two arc-shaped clamping jaws move closer to each other, the circumferential length of the arc-shaped clamping jaws gradually increases.

[0007] Preferably, a tensioning wheel that cooperates with the traction rope is installed in the arc-shaped inner cavity of the fixed claw segment.

[0008] Preferably, two guide rods are installed in parallel in the inner cavity of the shell, the guide rods are located below the avoidance groove, and the sliding rack is slidably connected to the two guide rods.

[0009] Preferably, the avoidance groove is a strip-shaped waist-shaped hole opened on the top of the shell along the length direction of the sliding rack.

[0010] Preferably, a threaded through hole is provided on the sliding rack, and the adjustment handle includes a gripping portion and a screw portion, the screw portion is threadedly connected to the threaded through hole, the top end of the screw portion is connected to the gripping portion, and the bottom end of the screw portion is connected to a locking assembly arranged below the sliding rack, and the locking assembly can lock the position of the sliding rack.

[0011] Preferably, the locking assembly includes an upper locking plate, a limit rod and a lower locking plate, the upper locking plate is rotatably connected to the bottom end of the screw portion, the top end of the limit rod is fixedly connected to the sliding rack, and the bottom end of the limit rod axially passes through the upper locking plate; the lower locking plate is located below the upper locking plate and connected to the shell, the upper locking plate is provided with an upper meshing portion, and the lower locking plate is provided with a lower meshing portion, and when the upper meshing portion and the lower meshing portion are engaged with each other, the position of the sliding rack can be locked.

[0012] Preferably, the locking assembly further comprises a fixing bracket and a return spring, wherein the two fixing brackets are installed in parallel in the inner cavity of the housing, and the two fixing brackets are located on both sides below the upper locking plate, and a mounting slot is provided on opposite sides of the two fixing brackets; the two lower locking plates are accommodated in the mounting slots in a one-to-one correspondence, and the return spring is installed in the mounting slot, one end of the return spring is connected to the fixing bracket, and the other end of the return spring is fixedly connected to the lower locking plate; The bottom of the upper locking plate is provided with an upper extrusion inclined surface, and the top of the lower locking plate is provided with a lower extrusion inclined surface that matches the upper extrusion inclined surface, so that when the upper locking plate is lowered, the upper extrusion inclined surface and the lower extrusion inclined surface are in contact and drive the lower locking plate into the installation long groove; An upper locking slope is provided on the top of the upper locking plate, an upper engaging portion is provided on the upper locking slope, and a lower locking slope is provided on the bottom of the lower locking plate, a lower engaging portion is provided on the lower locking slope.

[0013] A second object of the present invention is to provide a water-saving irrigation method suitable for sparse woodlands, wherein the water-saving irrigation method uses the above-mentioned water-saving irrigation device suitable for sparse woodlands, and the water-saving irrigation method comprises the following steps: S1: Push the adjustment handle to open the two arc-shaped clamping jaws outward; S2: moving the two arc-shaped clamping claws to the sides of the tree trunk; S3: Pushing the adjustment handle in the reverse direction causes the two arc-shaped clamping jaws to retract inward until the two arc-shaped clamping jaws clamp the tree trunk; S4: Connect the water inlet pipe to an external water source.

[0014] Beneficial effects of the present invention: The present invention utilizes a gear rack transmission mode, and drives the sliding rack by adjusting the handle to drive the connection ends of the two arc-shaped clamping claws and the shell to rotate, so that the other ends of the two arc-shaped clamping claws can move away from or close to each other, thereby enabling the water-saving irrigation device to be clamped and fixed on tree trunks of different diameters, thereby improving the applicability of the water-saving irrigation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A top view of the water-saving irrigation device suitable for sparse woodlands according to the present invention; Figure 2 This is a schematic diagram of the connection structure of some parts of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 3 This is a second schematic diagram of the connection structure of some parts of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 4This is a third schematic diagram of the connection structure of some parts of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 5 This is a fourth schematic diagram of the connection structure of some parts of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 6 This is a fifth schematic diagram of the connection structure of some parts of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 7 This is a front view of the water-saving irrigation device suitable for sparse woodlands of the present invention; Figure 8 It is one of the structural diagrams of the locking assembly; Figure 9 This is the second structural diagram of the locking assembly; Figure 10 for Figure 9 A partial enlarged view of the locking assembly at point A; Figure 11 Schematic diagram of the structure of the lower locking plate; Figure 12 A top view of the sliding rack.

[0016] Description of reference numerals in the figures: 10. Housing; 11. Avoidance groove; 12. Guide rod; 20. Sliding rack; 21. Threaded through hole; 30. Arc-shaped clamping jaw; 31. Fixed jaw section; 32. Telescopic jaw section; 33. Compression spring; 34. Traction rope; 35. Traction wheel; 36. Tensioning wheel; 37. Fixed plate; 40. Rotating axis; 50. Transmission gear; 60. Water inlet pipe; 70. Adjustment handle; 71. Grip portion; 72. Screw portion; 80. Locking assembly; 81. Upper locking plate; 811. Upper engaging portion; 812. Upper extrusion slope; 813. Upper locking slope; 82. Limit rod; 83. Lower locking plate; 831. Lower engaging portion; 832. Lower extrusion slope; 833. Lower locking slope; 84. Fixing frame; 85. Return spring. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0021] Examples, such as Figures 1-12 As shown, a water-saving irrigation device suitable for sparse woodlands includes: a housing 10, a sliding rack 20, an arc-shaped clamping claw 30, a transmission gear 50, a water inlet pipe 60 and an adjustment handle 70.

[0022] The housing 10 is hollow inside, and a relief groove 11 is provided on the top of the housing 10 along the longitudinal direction. The relief groove 11 is communicated with the inner cavity of the housing 10 .

[0023] The sliding rack 20 is installed in the inner cavity of the housing 10 so as to be reciprocatingly movable along the longitudinal direction, and the sliding rack 20 is located directly below the avoidance groove 11 .

[0024] There are two arc-shaped clamping jaws 30 , which are disposed on both sides of the sliding rack 20 . One end of the arc-shaped clamping jaw 30 is rotatably connected to the housing 10 via a rotating shaft 40 .

[0025] There are two transmission gears 50 , which are located on both sides of the sliding rack 20 . The two transmission gears 50 are coaxially fixedly connected to the two rotating shafts 40 , and the transmission gears 50 are meshed and transmission-connected with the sliding rack 20 .

[0026] The water inlet pipe 60 is disposed in the arc-shaped clamping jaw 30 , and one end of the water inlet pipe 60 extends to the outside of the housing 10 .

[0027] The adjusting handle 70 is arranged above the shell 10, and the bottom end of the adjusting handle 70 passes through the avoidance groove 11 and is fixedly connected to the sliding rack 20, so that the sliding rack 20 can be driven to move by the adjusting handle 70 and drive the two arc-shaped clamping jaws 30 to move away from or approach each other.

[0028] The present invention utilizes a gear rack transmission method. By adjusting the handle 70, the sliding rack 20 drives the connection ends of the two arc-shaped clamping jaws 30 and the housing 10 to rotate, so that the other ends of the two arc-shaped clamping jaws 30 can move away from or close to each other, thereby enabling the water-saving irrigation device to be clamped and fixed on tree trunks of different diameters, thereby improving the applicability of the water-saving irrigation device.

[0029] It should be noted that the longitudinal direction in the present invention refers to Figure 1 The single head direction in the present invention refers to the transverse direction Figure 1 The double arrow direction.

[0030] Specific embodiment 1, as Figures 1-12 As shown, a water-saving irrigation device suitable for sparse woodlands includes: a housing 10, a sliding rack 20, an arc-shaped clamping claw 30, a transmission gear 50, a water inlet pipe 60 and an adjustment handle 70.

[0031] The interior of the housing 10 is hollow, and a relief groove 11 is provided at the top of the housing 10 along the longitudinal direction. The relief groove 11 is communicated with the inner cavity of the housing 10 .

[0032] like Figure 3 As shown, in an optional embodiment, the avoidance groove 11 is a strip-shaped waisted circular hole, which is opened on the top plate of the shell 10 along a diameter of the shell 10 to facilitate the adjustment of the handle 70 to move in the longitudinal direction.

[0033] The sliding rack 20 is installed in the inner cavity of the shell 10 along the longitudinal direction, and the sliding rack 20 can move back and forth along the longitudinal direction; the sliding rack 20 is located directly below the avoidance groove 11, and the avoidance groove 11 is opened on the top plate of the shell 10 along the length direction of the sliding rack 20, that is, the moving direction of the sliding rack 20 is parallel to the length direction of the avoidance groove 11.

[0034] like Figure 3As shown, in an optional embodiment, two guide rods 12 are installed in parallel in the inner cavity of the shell 10, and the two guide rods 12 are arranged in parallel in the longitudinal direction on both sides of the lateral side below the avoidance groove 11. The longitudinal ends of the guide rods 12 are fixedly connected to the shell 10, and the middle part of the guide rods 12 is passed through the guide hole on the sliding rack 20, so that the lateral ends of the sliding rack 20 are slidably connected with the two guide rods 12 in the longitudinal direction, thereby enabling the sliding rack 20 to move back and forth in the longitudinal direction in the inner cavity of the shell 10, so that the guide rods 12 play a role of limiting and guiding the movement of the sliding rack 20, thereby further improving the stability of the sliding rack 20 during movement.

[0035] like Figure 4 and Figure 5 As shown, there are two arc-shaped clamping jaws 30, and the two arc-shaped clamping jaws 30 are arranged one-to-one on the lateral sides of the sliding rack 20, that is, the two arc-shaped clamping jaws 30 are arranged one-to-one on the lateral sides of the shell 10; open grooves are provided on both lateral sides of the shell 10, and the open grooves are connected to the inner cavity of the shell 10. Two rotating shafts 40 are installed in the inner cavity of the shell 10, and the two rotating shafts 40 are located one-to-one on the lateral sides of the sliding rack 20, and the top end of the rotating shaft 40 is rotatably connected to the top plate of the shell 10 through a bearing, and the bottom end of the rotating shaft 40 is rotatably connected to the bottom plate of the shell 10 through a bearing.

[0036] The two arc-shaped clamping jaws 30 are arranged with openings facing each other, and one end of each arc-shaped clamping jaw 30 passes through the opening slot and extends into the inner cavity of the shell 10 and is fixedly connected to the rotating shaft 40, so that the arc-shaped clamping jaw 30 and the shell 10 can rotate relative to each other, thereby allowing the two arc-shaped clamping jaws 30 to move away from or approach each other, making it convenient to surround the water-saving irrigation device around the tree trunk and to facilitate clamping and fixing it on tree trunks of different diameters.

[0037] like Figure 2 As shown, there are two transmission gears 50, which are installed in the inner cavity of the shell 10, and the two transmission gears 50 are coaxially fixedly connected with the two rotating shafts 40 in a one-to-one correspondence; teeth are provided on both lateral sides of the sliding rack 20, and the two transmission gears 50 are located on both lateral sides of the sliding rack 20 in a one-to-one correspondence, and the tooth grooves of the two transmission gears 50 are meshed with the teeth of the sliding rack 20 for transmission connection, so that the two transmission gears 50 are driven by the longitudinal movement of the sliding rack 20 to drive the rotating shaft 40 to rotate forward and reverse, thereby driving the two arc-shaped clamping jaws 30 to move away from or approach each other.

[0038] like Figure 6As shown, an arc-shaped inner cavity is provided in the arc-shaped clamping jaw 30, and the arc-shaped inner cavity extends along the arc length direction of the arc-shaped clamping jaw 30; there are two water inlet pipes 60, and the two water inlet pipes 60 are installed in the arc-shaped inner cavities of the two arc-shaped clamping jaws 30 in a one-to-one correspondence, and one end of the water inlet pipe 60 extends to the outside of the shell 10 for connecting to an external water source.

[0039] It should be noted that a connecting hole is provided on the water inlet pipe 60, which connects the inner cavity of the water inlet pipe 60 and the arc-shaped inner cavity of the arc-shaped clamping jaw 30, so that the irrigation water in the water inlet pipe 60 flows into the arc-shaped inner cavity of the arc-shaped clamping jaw 30; drip irrigation holes are provided on the arc-shaped clamping jaw 30, and multiple drip irrigation holes are evenly spaced along the arc length direction of the arc-shaped clamping jaw 30, and the drip irrigation holes are connected to the arc-shaped inner cavity of the arc-shaped clamping jaw 30 for drip irrigation of the plants.

[0040] like Figure 3 and Figure 7 As shown, the adjusting handle 70 is installed above the shell 10, and the bottom end of the adjusting handle 70 passes through the avoidance groove 11 and is fixedly connected to the sliding rack 20, so that the sliding rack 20 is driven to move by the adjusting handle 70 and drive the two arc-shaped clamping jaws 30 to move away from or closer to each other.

[0041] Specific embodiment 2, as Figures 1-12 As shown, a water-saving irrigation device suitable for sparse woodlands includes: a housing 10, a sliding rack 20, an arc-shaped clamping claw 30, a transmission gear 50, a water inlet pipe 60 and an adjustment handle 70.

[0042] like Figure 2 and Figure 3 As shown, a avoidance groove 11 is provided on the top of the housing 10 along the longitudinal direction, and the avoidance groove 11 is communicated with the inner cavity of the housing 10 .

[0043] like Figure 2 and Figure 3 As shown, the sliding rack 20 is installed in the inner cavity of the housing 10 along the longitudinal direction. The sliding rack 20 is located directly below the avoidance groove 11, and the sliding rack 20 can move back and forth along the longitudinal direction.

[0044] like Figure 4 and Figure 5 As shown, there are two arc-shaped clamping jaws 30, and the two arc-shaped clamping jaws 30 are arranged one-to-one on the lateral sides of the sliding rack 20, that is, the two arc-shaped clamping jaws 30 are arranged one-to-one on the lateral sides of the shell 10; open grooves are provided on both lateral sides of the shell 10, and the open grooves are connected to the inner cavity of the shell 10. Two rotating shafts 40 are installed in the inner cavity of the shell 10, and the two rotating shafts 40 are located one-to-one on the lateral sides of the sliding rack 20, and the vertical ends of the rotating shafts 40 are rotatably connected to the shell 10 through bearings.

[0045] like Figure 2 and Figure 7 As shown, there are two transmission gears 50, which are installed in the inner cavity of the shell 10. The two transmission gears 50 are coaxially fixedly connected to the two rotating shafts 40 in a one-to-one correspondence, and the two transmission gears 50 are meshed and connected to the sliding rack 20, so that the longitudinal movement of the sliding rack 20 drives the two transmission gears 50 to drive the rotating shaft 40 to rotate forward and reverse, thereby driving the two arc-shaped clamping jaws 30 to move away from or approach each other.

[0046] like Figure 6 As shown, an arc-shaped inner cavity is provided in the arc-shaped clamping jaw 30, and the arc-shaped inner cavity extends along the arc length direction of the arc-shaped clamping jaw 30; there are two water inlet pipes 60, and the two water inlet pipes 60 are installed in the arc-shaped inner cavities of the two arc-shaped clamping jaws 30 in a one-to-one correspondence, and one end of the water inlet pipe 60 extends to the outside of the shell 10 for connecting to an external water source.

[0047] like Figure 4 and Figure 5 As shown, the arc-shaped clamping jaw 30 includes a fixed claw segment 31, a telescopic claw segment 32, a compression spring 33, a traction rope 34 and a traction wheel 35; the radial dimensions of the fixed claw segment 31 and the telescopic claw segment 32 are the same, and the fixed claw segment 31 and the telescopic claw segment 32 are both provided with an arc-shaped inner cavity, and one end of the telescopic claw segment 32 is sealed and slidably connected to the arc-shaped inner cavity of the fixed claw segment 31.

[0048] The compression spring 33 is installed in the arc-shaped inner cavity of the fixed claw segment 31, and one end of the compression spring 33 is fixedly connected to the fixed claw segment 31, and the other end of the compression spring 33 is fixedly connected to the telescopic claw segment 32, so that the telescopic claw segment 32 extends from the arc-shaped inner cavity of the fixed claw segment 31 through the elastic force of the compression spring 33 on the telescopic claw segment 32, thereby increasing the arc length of the arc-shaped clamping jaw 30.

[0049] like Figure 4 、 Figure 5 and Figure 7 As shown, two traction wheels 35 and two traction ropes 34 are installed in the inner cavity of the shell 10. The two traction wheels 35 are coaxially fixedly installed on the rotating shaft 40 in a one-to-one manner. One end of the traction rope 34 is fixedly connected to the telescopic claw segment 32, and the other end of the traction rope 34 is wound around the traction wheel 35, so that when the rotating shaft 40 rotates, the traction wheel 35 can be driven to rotate synchronously, and the length of the traction rope 34 wound around the traction wheel 35 can be lengthened or shortened, so that the telescopic claw segment 32 is extended from the arc-shaped inner cavity of the fixed claw segment 31 under the action of the compression spring 33, or the telescopic claw segment 32 is entered into the arc-shaped inner cavity of the fixed claw segment 31 under the action of the traction rope 34, thereby realizing the adjustment of the arc length of the arc-shaped clamping jaw 30.

[0050] like Figure 5As shown, in an optional embodiment, when the two arc-shaped jaws 30 move away from each other, the circumferential length of the arc-shaped jaws 30 gradually decreases, and when the two arc-shaped jaws 30 move closer to each other, the circumferential length of the arc-shaped jaws 30 gradually increases, that is, the rotation direction of the two arc-shaped jaws 30 when they are opened is opposite to the winding direction of the traction rope 34 on the traction wheel 35. For the traction wheel 35 located on the left side of the sliding rack 20, the traction rope 34 is wound around the traction wheel 35 clockwise, and for the traction wheel 35 located on the right side of the sliding rack 20, the traction rope 34 is wound around the traction wheel 35 counterclockwise.

[0051] It should be noted that the water inlet pipe 60 is a telescopic water pipe, half of which is installed in the arc-shaped inner cavity of the telescopic claw segment 32, and the other half of the telescopic water pipe is installed in the arc-shaped inner cavity of the fixed claw segment 31, and a connecting hole is provided on the water inlet pipe 60, which connects the inner cavity of the water inlet pipe 60 and the arc-shaped inner cavity of the fixed claw segment 31 or the telescopic claw segment 32, so that the irrigation water in the water inlet pipe 60 flows into the arc-shaped inner cavity of the fixed claw segment 31 or the telescopic claw segment 32; drip irrigation holes are provided on the fixed claw segment 31 or the telescopic claw segment 32, and multiple drip irrigation holes are evenly spaced along the arc length direction of the arc-shaped clamp 30, and the drip irrigation holes are connected to the arc-shaped inner cavity of the fixed claw segment 31 or the telescopic claw segment 32 for drip irrigation of the plants.

[0052] In an optional embodiment, a receiving groove is provided on the outer circumference of the traction wheel 35, and the traction rope 34 is wound in the receiving groove. By providing the receiving groove for winding the traction rope 34, the traction rope 34 can be prevented from escaping from the traction wheel 35.

[0053] like Figure 3 and Figure 7 As shown, the adjusting handle 70 is installed above the shell 10, and the bottom end of the adjusting handle 70 passes through the avoidance groove 11 and is fixedly connected to the sliding rack 20, so that the sliding rack 20 is driven to move by the adjusting handle 70 and drive the two arc-shaped clamping jaws 30 to move away from or closer to each other.

[0054] Specific embodiment 3, as Figures 1-12 As shown, a water-saving irrigation device suitable for sparse woodlands includes: a housing 10, a sliding rack 20, an arc-shaped clamping claw 30, a transmission gear 50, a water inlet pipe 60 and an adjustment handle 70.

[0055] like Figure 2 and Figure 3 As shown, a avoidance groove 11 is provided on the top of the housing 10 along the longitudinal direction, and the avoidance groove 11 is communicated with the inner cavity of the housing 10 .

[0056] like Figure 2 and Figure 3As shown, the sliding rack 20 is installed in the inner cavity of the housing 10 along the longitudinal direction. The sliding rack 20 is located directly below the avoidance groove 11, and the sliding rack 20 can move back and forth along the longitudinal direction.

[0057] like Figure 4 and Figure 5 As shown, there are two arc-shaped clamping jaws 30, and the two arc-shaped clamping jaws 30 are arranged on the lateral sides of the sliding rack 20 in a one-to-one correspondence, that is, the two arc-shaped clamping jaws 30 are arranged on the lateral sides of the sliding rack 20 in a one-to-one correspondence; open grooves are provided on both lateral sides of the shell 10, and the open grooves are connected to the inner cavity of the shell 10. Two rotating shafts 40 are installed in the inner cavity of the shell 10, and the two rotating shafts 40 are located on the lateral sides of the sliding rack 20 in a one-to-one correspondence, and the vertical ends of the rotating shafts 40 are rotatably connected to the shell 10 through bearings.

[0058] like Figure 2 and Figure 7 As shown, there are two transmission gears 50, which are installed in the inner cavity of the shell 10. The two transmission gears 50 are coaxially fixedly connected to the two rotating shafts 40 in a one-to-one correspondence, and the two transmission gears 50 are meshed and connected to the sliding rack 20, so that the longitudinal movement of the sliding rack 20 drives the two transmission gears 50 to drive the rotating shaft 40 to rotate forward and reverse, thereby driving the two arc-shaped clamping jaws 30 to move away from or approach each other.

[0059] like Figure 6 As shown, an arc-shaped inner cavity is provided in the arc-shaped clamping jaw 30, and the arc-shaped inner cavity extends along the arc length direction of the arc-shaped clamping jaw 30; there are two water inlet pipes 60, and the two water inlet pipes 60 are installed in the arc-shaped inner cavities of the two arc-shaped clamping jaws 30 in a one-to-one correspondence, and one end of the water inlet pipe 60 extends to the outside of the shell 10 for connecting to an external water source.

[0060] like Figure 4 and Figure 5 As shown, the arc-shaped clamping jaw 30 includes a fixed claw segment 31, a telescopic claw segment 32, a compression spring 33, a traction rope 34 and a traction wheel 35; the radial dimensions of the fixed claw segment 31 and the telescopic claw segment 32 are the same, and the fixed claw segment 31 and the telescopic claw segment 32 are both provided with an arc-shaped inner cavity, and one end of the telescopic claw segment 32 is sealed and slidably connected to the arc-shaped inner cavity of the fixed claw segment 31.

[0061] A fixing plate 37 is fixedly installed in the arc-shaped inner cavity of the fixed claw segment 31, and the compression spring 33 is installed in the arc-shaped inner cavity of the fixed claw segment 31, and one end of the compression spring 33 is fixedly connected to the fixing plate 37, and the other end of the compression spring 33 is fixedly connected to the telescopic claw segment 32, so that the telescopic claw segment 32 is extended from the arc-shaped inner cavity of the fixed claw segment 31 through the elastic force of the compression spring 33 on the telescopic claw segment 32, thereby achieving an increase in the arc length of the arc-shaped clamping jaw 30.

[0062] like Figure 4 、 Figure 5 and Figure 7 As shown, two traction wheels 35 and two traction ropes 34 are installed in the inner cavity of the shell 10. The two traction wheels 35 are coaxially fixed on the rotating shaft 40 in a one-to-one correspondence. One end of the traction rope 34 passes through the fixed plate 37 and is fixedly connected to the telescopic claw segment 32. The other end of the traction rope 34 is wound around the traction wheel 35, so that when the rotating shaft 40 rotates, the traction wheel 35 can be driven to rotate synchronously, and the length of the traction rope 34 wound around the traction wheel 35 becomes longer or shorter, so that the telescopic claw segment 32 extends from the arc-shaped inner cavity of the fixed claw segment 31 under the action of the compression spring 33, or the telescopic claw segment 32 enters the arc-shaped inner cavity of the fixed claw segment 31 under the action of the traction rope 34, thereby realizing the adjustment of the arc length of the arc-shaped clamping jaw 30.

[0063] like Figure 4 As shown, in an optional embodiment, a tensioning wheel 36 that cooperates with the traction rope 34 is installed in the arc-shaped inner cavity of the fixed claw segment 31, which is used to tension the traction rope 34. By setting the tensioning wheel 36, the traction rope 34 is kept taut, and the traction rope 34 is prevented from loosening, which causes the telescopic claw segment 32 to extend out of the fixed claw segment 31 under the drive of the compression spring 33. At the same time, the traction rope 34 is kept taut, and the telescopic claw segment 32 can be retracted through the traction rope 34 as soon as the traction wheel 35 rotates, thereby improving the overall movement efficiency.

[0064] like Figure 3 and Figure 7 As shown, the adjusting handle 70 is installed above the shell 10, and the bottom end of the adjusting handle 70 passes through the avoidance groove 11 and is fixedly connected to the sliding rack 20, so that the sliding rack 20 is driven to move by the adjusting handle 70 and drive the two arc-shaped clamping jaws 30 to move away from or closer to each other.

[0065] like Figure 7 and Figure 12 As shown, in an optional embodiment, a threaded through hole 21 is provided in the middle of the sliding rack 20, and the threaded through hole 21 passes through the sliding rack 20 in the vertical direction; the adjustment handle 70 includes a gripping portion 71 and a screw portion 72, the middle portion of the screw portion 72 is threadedly connected to the threaded through hole 21, the top end of the screw portion 72 is vertically fixedly connected to the gripping portion 71, and the bottom end of the screw portion 72 is connected to the locking assembly 80, which is installed below the sliding rack 20, and the locking assembly 80 can lock the longitudinal position of the sliding rack 20.

[0066] like Figure 7 and Figure 8As shown, in an optional embodiment, the locking assembly 80 includes an upper locking plate 81, a limiting rod 82 and a lower locking plate 83. The upper locking plate 81 is located directly below the screw portion 72, and the top of the upper locking plate 81 is rotatably connected to the bottom end of the screw portion 72; the number of the limiting rods 82 is two, and the two limiting rods 82 are located one-to-one on both sides of the longitudinal direction of the screw portion 72, and the top of the limiting rod 82 is vertically fixedly connected to the sliding rack 20, and the bottom end of the limiting rod 82 extends axially and passes through the upper locking plate 81, so that when the screw portion 72 rotates, the upper locking plate 81 can be raised and lowered synchronously with the screw portion 72, and the upper locking plate 81 does not rotate.

[0067] like Figure 8 As shown, the lower locking plate 83 is located directly below the upper locking plate 81, extending in the longitudinal direction and fixedly connected to the housing 10. The upper locking plate 81 is provided with an upper meshing portion 811, that is, a plurality of upper limit bars are fixedly mounted on the lower end surface of the upper locking plate 81, and the plurality of upper limit bars are linearly distributed in the longitudinal direction. The upper end surface of the lower locking plate 83 is provided with a lower meshing portion 831, that is, a plurality of lower limit bars are fixedly mounted on the upper end surface of the lower locking plate 83, and the plurality of lower limit bars are linearly distributed in the longitudinal direction. When the upper locking plate 81 is lowered, the upper meshing portion 811 of the upper locking plate 81 and the lower meshing portion 831 of the lower locking plate 83 engage with each other to lock the position of the sliding rack 20.

[0068] It should be noted that: when there are two lower locking plates 83, the two lower locking plates 83 are arranged at a horizontal distance so that a gap is formed between the two lower locking plates 83 for avoiding the limit rod 82; when there is only one lower locking plate 83, a long slot hole is opened on the lower locking plate 83 for avoiding the limit rod 82.

[0069] Specific embodiment 4, as Figures 1-12 As shown, a water-saving irrigation device suitable for sparse woodlands includes: a housing 10, a sliding rack 20, an arc-shaped clamping claw 30, a transmission gear 50, a water inlet pipe 60 and an adjustment handle 70.

[0070] like Figure 2 and Figure 3 As shown, a avoidance groove 11 is provided on the top of the housing 10 along the longitudinal direction, and the avoidance groove 11 is communicated with the inner cavity of the housing 10 .

[0071] like Figure 2 and Figure 3 As shown, the sliding rack 20 is installed in the inner cavity of the housing 10 along the longitudinal direction. The sliding rack 20 is located directly below the avoidance groove 11, and the sliding rack 20 can move back and forth along the longitudinal direction.

[0072] like Figure 4 and Figure 5As shown, there are two arc-shaped clamping jaws 30, and the two arc-shaped clamping jaws 30 are arranged on the lateral sides of the sliding rack 20 in a one-to-one correspondence, that is, the two arc-shaped clamping jaws 30 are arranged on the lateral sides of the sliding rack 20 in a one-to-one correspondence; open grooves are provided on both lateral sides of the shell 10, and the open grooves are connected to the inner cavity of the shell 10. Two rotating shafts 40 are installed in the inner cavity of the shell 10, and the two rotating shafts 40 are located on the lateral sides of the sliding rack 20 in a one-to-one correspondence, and the vertical ends of the rotating shafts 40 are rotatably connected to the shell 10 through bearings.

[0073] like Figure 2 and Figure 7 As shown, there are two transmission gears 50, which are installed in the inner cavity of the shell 10. The two transmission gears 50 are coaxially fixedly connected to the two rotating shafts 40 in a one-to-one correspondence, and the two transmission gears 50 are meshed and connected to the sliding rack 20, so that the longitudinal movement of the sliding rack 20 drives the two transmission gears 50 to drive the rotating shaft 40 to rotate forward and reverse, thereby driving the two arc-shaped clamping jaws 30 to move away from or approach each other.

[0074] like Figure 6 As shown, an arc-shaped inner cavity is provided in the arc-shaped clamping jaw 30, and the arc-shaped inner cavity extends along the arc length direction of the arc-shaped clamping jaw 30; there are two water inlet pipes 60, and the two water inlet pipes 60 are installed in the arc-shaped inner cavities of the two arc-shaped clamping jaws 30 in a one-to-one correspondence, and one end of the water inlet pipe 60 extends to the outside of the shell 10 for connecting to an external water source.

[0075] like Figure 3 and Figure 7 As shown, the adjusting handle 70 is installed above the shell 10, and the bottom end of the adjusting handle 70 passes through the avoidance groove 11 and is fixedly connected to the sliding rack 20, so that the sliding rack 20 is driven to move by the adjusting handle 70 and drive the two arc-shaped clamping jaws 30 to move away from or closer to each other.

[0076] like Figure 7 and Figure 12 As shown, a threaded through hole 21 is provided in the middle of the sliding rack 20, and the threaded through hole 21 passes through the sliding rack 20 in the vertical direction; the adjustment handle 70 includes a gripping portion 71 and a screw portion 72, and the gripping portion 71 is located directly above the shell 10, and the middle portion of the screw portion 72 is threadedly connected to the threaded through hole 21, and the top end of the screw portion 72 is vertically fixedly connected to the gripping portion 71, and the bottom end of the screw portion 72 is connected to the locking assembly 80, which is installed below the sliding rack 20, and the locking assembly 80 can lock the longitudinal position of the sliding rack 20.

[0077] like Figure 7 、 Figures 9-11As shown, the locking assembly 80 includes an upper locking plate 81, a lower locking plate 83, a fixing frame 84 and a return spring 85; the upper locking plate 81 is located directly below the screw portion 72, and the upper locking plate 81 is rotatably connected to the bottom end of the screw portion 72.

[0078] Specifically, the upper locking plate 81 is sleeved on the bottom end of the screw portion 72. An annular groove is provided on the inner side of the upper locking plate 81, and an annular convex strip is provided on the bottom end of the screw portion 72. The rotation of the adjustment handle 70 will not drive the upper locking plate 81 to rotate. At the same time, the up and down displacement of the adjustment handle 70 will drive the upper locking plate 81 to move up and down.

[0079] There are two fixing brackets 84, which are located on both sides below the upper locking plate 81 in a one-to-one correspondence. The two fixing brackets 84 extend in the longitudinal direction and are fixedly connected to the shell 10, and a mounting long slot is provided on the opposite side of the two fixing brackets 84; the lower locking plate 83 extends in the longitudinal direction, and there are two lower locking plates 83, and the two lower locking plates 83 are accommodated in the mounting long slots of the two fixing brackets 84 in a one-to-one correspondence; the return spring 85 is installed in the mounting long slot, and one end of the return spring 85 is connected to the fixing bracket 84, and the other end of the return spring 85 is fixedly connected to the lower locking plate 83, so that the lower locking plate 83 can extend from the mounting long slot under the elastic force of the return spring 85.

[0080] like Figure 10 As shown, upper extrusion slopes 812 are provided on both lateral sides of the bottom of the upper locking plate 81, and a lower extrusion slope 832 that cooperates with the upper extrusion slope 812 is provided on the top of one end of the lower locking plate 83 close to the upper locking plate 81, so that when the upper locking plate 81 descends, the upper extrusion slope 812 and the lower extrusion slope 832 fit tightly together and can drive the lower locking plate 83 to move laterally and enter the installation long groove of the fixing frame 84.

[0081] Upper locking slopes 813 are provided on both lateral sides of the top of the upper locking plate 81, and upper engaging portions 811 are provided on the upper locking slopes 813, that is, multiple upper limit bars are fixedly installed on the upper locking slopes 813, and the multiple upper limit bars are linearly distributed along the longitudinal direction.

[0082] A lower locking slope 833 is provided at the bottom of the lower locking plate 83 near one end of the upper locking plate 81, and a lower engaging portion 831 is provided on the lower locking slope 833, that is, a plurality of lower limit strips are fixedly installed on the lower locking slope 833, and the plurality of lower limit strips are linearly distributed along the longitudinal direction.

[0083] When the upper locking plate 81 moves synchronously with the screw portion 72 to the bottom of the lower locking plate 83, under the elastic force of the return spring 85, the two lower locking plates 83 extend from the fixing frame 84 and approach each other, and after the lower engaging portion 831 of the lower locking plate 83 and the upper engaging portion 811 of the upper locking plate 81 engage with each other, the longitudinal position of the sliding rack 20 can be locked.

[0084] In one embodiment, a water-saving irrigation method suitable for sparse woodlands is provided. The water-saving irrigation method uses the above-mentioned water-saving irrigation device suitable for sparse woodlands, and the water-saving irrigation method comprises the following steps: S1: Push the adjusting handle 70 in the longitudinal direction, so that the two arc-shaped clamping jaws 30 open outward, until the adjusting handle 70 cannot be pushed anymore.

[0085] S2: Move the two arc-shaped clamping jaws 30 to the sides of the tree trunk, that is, make the fixed claw section 31 and the telescopic claw section 32 wrap around the tree trunk.

[0086] S3: Push the adjusting handle 70 in the reverse direction, so that the two arc-shaped clamping jaws 30 are retracted inwards, until the two arc-shaped clamping jaws 30 clamp the tree trunk.

[0087] S4: Connect the water inlet pipe 60 to an external water source.

[0088] In a specific embodiment, step S3 specifically includes the following steps: S31: Push the adjusting handle 70 longitudinally to retract the two arc-shaped clamping jaws 30 inward until the two arc-shaped clamping jaws 30 clamp the tree trunk.

[0089] S32: Rotate the adjustment handle 70 so that the adjustment handle 70 moves downward along the threaded through hole 21 of the sliding rack 20 until the locking assembly 80 at the bottom end of the adjustment handle 70 locks the longitudinal position of the sliding rack 20.

[0090] The working process of the water-saving irrigation device of the present invention is as follows: When the sliding rack 20 is driven longitudinally by the adjustment handle 70, it drives the two transmission gears 50 to rotate in opposite directions. These two transmission gears 50 then simultaneously drive the two rotating shafts 40 to rotate in opposite directions, causing the two arc-shaped clamping jaws 30 to move away from each other and unfold. At this point, the traction wheel 35 reels the traction rope 34 and drives the two telescopic claw segments 32 to retract into the fixed claw segment 31, further increasing the opening size of the two arc-shaped clamping jaws 30. This allows the water-saving irrigation device to wrap around tree trunks of varying diameters, enabling it to stably clamp even thicker trunks.

[0091] When the housing 10 is around the tree trunk, the adjusting handle 70 is pushed in the opposite direction, so that the two arc-shaped clamping jaws 30 are retracted. At this time, the traction wheel 35 releases the traction rope 34 and drives the two telescopic claw sections 32 to extend until the telescopic claw sections 32 and the fixed claw sections 31 both clamp the tree trunk. Then, the water inlet pipe 60 can be connected to an external water source, and intermittent water supply is performed through the control circuit, thereby intermittently irrigating the roots of the tree trunk to achieve the purpose of saving water.

[0092] When it is necessary to lock the longitudinal position of the sliding rack 20, the grip portion 71 of the adjusting handle 70 is rotated, and the screw portion 72 of the adjusting handle 70 moves downward along the threaded through hole 21 of the sliding rack 20. At this time, the upper locking plate 81 at the bottom end of the adjusting handle 70 contacts the lower locking plate 83, causing the lower locking plate 83 to move into the mounting groove of the fixing frame 84 and squeeze the return spring 85; when the upper locking plate 81 drops below the lower locking plate 83, the lower locking plate 83 is laterally moved under the elastic force of the return spring 85 Move and return to the original position. At this time, the lower engaging portion 831 at the bottom of the lower locking plate 83 is engaged with the upper engaging portion 811 at the top of the upper locking plate 81, thereby locking the position of the sliding rack 20 in the longitudinal direction, making it impossible for the adjustment handle 70 to move, thereby preventing animals in the woods from moving the adjustment handle 70 and causing the arc-shaped clamping jaw 30 to loosen the tree trunk; on the other hand, since the sliding rack 20 and the transmission gear 50 are not disengaged, the arc-shaped clamping jaw 30 can still maintain the state of clamping the tree trunk.

[0093] When the trunk needs to be loosened, the adjusting handle 70 is rotated in the opposite direction so that the screw portion 72 of the adjusting handle 70 moves upward along the threaded through hole 21. At this time, the upper locking plate 81 laterally squeezes the lower locking plate 83, and the lower locking plate 83 moves into the mounting groove of the fixing frame 84 and squeezes the return spring 85. When the upper locking plate 81 rises above the lower locking plate 83, the longitudinal locking of the sliding rack 20 is released, so that the adjusting handle 70 can return to a state where it can move normally, so that pushing the adjusting handle 70 can release the arc-shaped clamping claw 30. At the same time, the lower locking plate 83 moves laterally under the elastic force of the return spring 85 and returns to its original position.

[0094] Compared with the existing technology, this application has at least the following beneficial technical effects: The water-saving irrigation device of the present invention maintains a clamping state on the tree trunk through the adjustable arc-shaped clamping claws, so that the water-saving irrigation device can be placed on tree trunks with different diameters, thereby improving the applicability of the water-saving irrigation device.

[0095] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A water-saving irrigation device suitable for sparse woodlands, characterized in that: include: A housing (10), wherein a top of the housing (10) is provided with an avoidance groove (11); A sliding rack (20), the sliding rack (20) being reciprocally mounted in the inner cavity of the housing (10); Arc-shaped clamping jaws (30), two arc-shaped clamping jaws (30) are arranged on both sides of the sliding rack (20), and one end of the arc-shaped clamping jaw (30) is rotatably connected to the housing (10) via a rotating shaft (40); A transmission gear (50), the transmission gear (50) is mounted on the rotating shaft (40), and the transmission gear (50) is meshed with the sliding rack (20) for transmission connection; a water inlet pipe (60), the water inlet pipe (60) being arranged in the arc-shaped clamping jaw (30), and one end of the water inlet pipe (60) extending to the outside of the housing (10); An adjusting handle (70), wherein the adjusting handle (70) is arranged above the housing (10), and the bottom end of the adjusting handle (70) passes through the avoidance groove (11) and is fixedly connected to the sliding rack (20), so that the sliding rack (20) is driven to move by the adjusting handle (70) and the two arc-shaped clamping claws (30) are driven to move away from or approach each other; The arc-shaped clamping claw (30) comprises a fixed claw section (31), a telescopic claw section (32), a compression spring (33), a traction rope (34) and a traction wheel (35); one end of the telescopic claw section (32) is slidably connected to the arc-shaped inner cavity of the fixed claw section (31); the compression spring (33) is arranged in the arc-shaped inner cavity of the fixed claw section (31); one end of the compression spring (33) is connected to the fixed claw section (31); the other end of the compression spring (33) is connected to the telescopic claw section (32); the traction wheel (35) is fixedly mounted on the rotating shaft (40); one end of the traction rope (34) is connected to the telescopic claw section (32); the other end of the traction rope (34) is wound around the traction wheel (35).

2. A water-saving irrigation device suitable for sparse woodlands according to claim 1, characterized in that: When the two arc-shaped clamping jaws (30) move away from each other, the circumferential length of the arc-shaped clamping jaws (30) gradually decreases, and when the two arc-shaped clamping jaws (30) move closer to each other, the circumferential length of the arc-shaped clamping jaws (30) gradually increases.

3. The water-saving irrigation device suitable for sparse woodlands according to claim 1, characterized in that: A tensioning wheel (36) that matches the traction rope (34) is installed in the arc-shaped inner cavity of the fixed claw section (31).

4. The water-saving irrigation device suitable for sparse woodlands according to claim 1, characterized in that: Two guide rods (12) are installed in parallel in the inner cavity of the housing (10), the guide rods (12) are located below the avoidance groove (11), and the sliding rack (20) is slidably connected to the two guide rods (12).

5. The water-saving irrigation device suitable for sparse woodlands according to claim 4, characterized in that: The avoidance groove (11) is a strip-shaped waist-shaped hole opened on the top of the housing (10) along the length direction of the sliding rack (20).

6. The water-saving irrigation device suitable for sparse woodlands according to claim 1, characterized in that: A threaded through hole (21) is provided on the sliding rack (20), and the adjustment handle (70) includes a gripping portion (71) and a screw portion (72), wherein the screw portion (72) is threadedly connected to the threaded through hole (21), the top end of the screw portion (72) is connected to the gripping portion (71), and the bottom end of the screw portion (72) is connected to a locking assembly (80) provided below the sliding rack (20), and the locking assembly (80) can lock the position of the sliding rack (20).

7. The water-saving irrigation device suitable for sparse woodlands according to claim 6, characterized in that: The locking assembly (80) includes an upper locking plate (81), a limiting rod (82) and a lower locking plate (83), wherein the upper locking plate (81) is rotatably connected to the bottom end of the screw portion (72), the top end of the limiting rod (82) is fixedly connected to the sliding rack (20), and the bottom end of the limiting rod (82) axially passes through the upper locking plate (81); the lower locking plate (83) is located below the upper locking plate (81) and is connected to the housing (10), an upper meshing portion (811) is provided on the upper locking plate (81), and a lower meshing portion (831) is provided on the lower locking plate (83), and when the upper meshing portion (811) and the lower meshing portion (831) are meshed with each other, the position of the sliding rack (20) can be locked.

8. The water-saving irrigation device suitable for sparse woodlands according to claim 7, characterized in that: The locking assembly (80) further includes a fixing frame (84) and a return spring (85), wherein the two fixing frames (84) are installed in parallel in the inner cavity of the housing (10), and the two fixing frames (84) are located on both sides below the upper locking plate (81), and a mounting slot is provided on the opposite side of the two fixing frames (84); the two lower locking plates (83) are accommodated in the mounting slots in a one-to-one correspondence, and the return spring (85) is installed in the mounting slot, one end of the return spring (85) is connected to the fixing frame (84), and the other end of the return spring (85) is fixedly connected to the lower locking plate (83); An upper extrusion slope (812) is provided at the bottom of the upper locking plate (81), and a lower extrusion slope (832) is provided at the top of the lower locking plate (83) to match the upper extrusion slope (812), so that when the upper locking plate (81) descends, the upper extrusion slope (812) and the lower extrusion slope (832) are in contact with each other and drive the lower locking plate (83) into the installation slot; An upper locking slope (813) is provided at the top of the upper locking plate (81), and an upper meshing portion (811) is provided on the upper locking slope (813); a lower locking slope (833) is provided at the bottom of the lower locking plate (83), and a lower meshing portion (831) is provided on the lower locking slope (833).

9. A water-saving irrigation method suitable for sparse woodlands, wherein the water-saving irrigation method uses the water-saving irrigation device suitable for sparse woodlands according to any one of claims 1 to 8, characterized in that: The water-saving irrigation method comprises the following steps: S1: Pushing the adjustment handle (70) causes the two arc-shaped clamping jaws (30) to open outwards; S2: moving the two arc-shaped clamping claws (30) to the sides of the tree trunk; S3: Pushing the adjustment handle (70) in the reverse direction causes the two arc-shaped clamping jaws (30) to retract inward until the two arc-shaped clamping jaws (30) clamp the tree trunk; S4: Connect the water inlet pipe (60) to an external water source.

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