Plant root irrigation device for pest control

Abstract

The invention belongs to the technical field of plant root irrigation, and discloses a plant root irrigation device for pest control, which comprises a liquid inlet pipe, a ventilation grid pipe is mounted in the liquid inlet pipe, a liquid inlet cover plate is fixedly connected in the ventilation grid pipe, a root irrigation pipe is fixedly connected in the liquid inlet cover plate, and a closure sliding hopper is fixedly connected to the lower side of the root irrigation pipe; according to the root irrigation device, through cooperation of the partition plates, the liquid inlet piston and other structures, the amount of root irrigation liquid entering the intercepting fixed hopper in the liquid inlet pipe is controlled through the sliding piston and the circular truncated cone piston, and then the irrigation speed is reduced; the pressure of root irrigation liquid in different areas on the liquid inlet piston is different, so that the liquid inlet piston slides, channels entering the root irrigation pipe from the closure fixing hopper are reduced, and flowing of the root irrigation liquid is slowed down.

Description

Technical Field

[0001] The invention belongs to the technical field of plant root irrigation, in particular to a plant root irrigation device for preventing and controlling diseases and insect pests. Background Art

[0002] Plant root irrigation is a gardening technique that involves evenly irrigating medicine or liquid fertilizer into the soil around the roots of plants like watering. Root irrigation can help plants absorb the required water and nutrients, promote plant growth and development, and prevent or treat some plant diseases. Plant root irrigation devices are devices used to deliver water and nutrients directly to the roots of plants, which helps plants better absorb the required water and nutrients and promote growth.

[0003] The existing root irrigation devices generally allow the root irrigation liquid to penetrate directly into the plant rhizomes through the root irrigation device, which is a fast root irrigation method. Slower root irrigation methods are rarely used. Summary of the invention

[0004] In order to solve the problem that the existing root irrigation equipment mentioned in the above background technology rarely adopts a slow root irrigation method, the present invention provides a plant root irrigation device for pest control.

[0005] To achieve the above object, the present invention provides the following technical solution: a plant root irrigation device for pest control, comprising a liquid inlet pipe, a ventilation grid pipe is installed in the liquid inlet pipe, a liquid inlet cover is fixedly connected in the ventilation grid pipe, a root irrigation pipe is fixedly connected in the liquid inlet cover, and a cut-off sliding bucket is fixedly connected to the lower side of the root irrigation pipe;

[0006] The root irrigation tube is fixedly connected with symmetrically distributed interception fixed buckets, the interception fixed buckets are fixedly connected with partition baffles distributed in a circumferential array, and the root irrigation tube is slidably connected with liquid inlet pistons distributed in a circumferential array corresponding to the interception fixed buckets;

[0007] A sliding piston is slidably connected inside the liquid inlet cover plate, a symmetrically distributed connecting plate is fixedly connected to the lower side of the sliding piston, a frustum piston is fixedly connected to the lower side of the connecting plate, an upper sealing ring is fixedly connected to the upper end of the liquid inlet cover plate, and a lower sealing ring is fixedly connected to the lower end of the liquid inlet cover plate.

[0008] Preferably, the intercepting fixed bucket is provided with diversion holes distributed in a circumferential array, and the diversion holes with the diameter of the root irrigation tube as the symmetry axis are at different distances from the axis of the root irrigation tube.

[0009] Preferably, a lower connecting sliding frame or an upper connecting sliding frame is fixedly connected between the opposite surfaces of the liquid inlet piston, and both ends of the lower connecting sliding frame and the upper connecting sliding frame are slidably connected with limit sliding frames corresponding to the liquid inlet piston, and the limit sliding frame is fixedly connected to the inner wall of the root irrigation canal, and the lower connecting sliding frame and the upper connecting sliding frame are respectively provided with opposing sliding grooves for the lower connecting sliding frame and the upper connecting sliding frame to slide against each other.

[0010] Preferably, a liquid inlet screen is fixedly connected inside the liquid inlet pipe, the lower end of the liquid inlet screen is fixedly connected to the root irrigation tube, a limiting piston spring is arranged between the liquid inlet screen and the sliding piston, the sliding piston is slidingly connected to the upper sealing ring, and the outer diameter of the sliding piston is consistent with the inner diameter of the upper sealing ring.

[0011] Preferably, the outer diameter of the sliding piston is consistent with that of the conical piston, the inner diameter of the lower sealing ring is consistent with that of the upper sealing ring, the distance between the sliding piston and the conical piston is greater than the distance between the upper sealing ring and the lower sealing ring, and the lower sealing ring is on the upper side of the partition partition and does not contact the partition partition.

[0012] Preferably, a liquid outlet screen is fixedly connected to the lower end of the ventilation grid tube, a return spring is arranged between the liquid outlet screen and the intercepting sliding bucket, symmetrically distributed limit blocks are slidably connected through the intercepting sliding bucket, the limit blocks are fixedly connected to the root irrigation tube, symmetrically distributed arc-shaped sealing plates are fixedly connected to the root irrigation tube, and the arc-shaped sealing plates are slidably connected through the intercepting sliding bucket;

[0013] Preferably, the limiting block is fixedly connected to the liquid outlet screen, the arc-shaped sealing plate is shorter than the limiting block, and the arc-shaped sealing plate does not contact the liquid outlet screen.

[0014] Preferably, the lower side of the intercepting sliding bucket is fixedly connected to an external fixing rod distributed in a circumferential array, the external fixing rod is slidably connected to an external sliding sleeve, the lower end of the external sliding sleeve is fixedly connected to an outer arc-shaped extrusion block, the outer sliding sleeve is provided with an external limit spring respectively connected to the external fixing rod and the outer arc-shaped extrusion block, and the side of the outer arc-shaped extrusion block close to the root irrigation canal is fixedly connected to an outer arc-shaped baffle.

[0015] Preferably, the lower side of the intercepting sliding bucket is fixedly connected to an inner fixing rod distributed in a circumferential array, the distance between the inner fixing rod and the root irrigation canal is smaller than the distance between the outer fixing rod and the root irrigation canal, an inner sliding sleeve is slidably connected to the inner fixing rod, an inner limit spring is fixedly connected to the lower end of the inner sliding sleeve, an inner arc-shaped extrusion block respectively connected to the inner fixing rod and the inner limit spring is arranged in the inner sliding sleeve, and an inner arc-shaped baffle is fixedly connected to the side of the inner limit spring close to the root irrigation canal.

[0016] Preferably, the root irrigation tube is fixedly connected to the liquid outlet screen, a channel for root irrigation is provided in the liquid outlet screen, through holes distributed in a circumferential array are provided at the lower end of the liquid outlet screen, and the liquid outlet screen is connected to the root irrigation tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention cooperates with structures such as partition plates and liquid inlet pistons, controls the amount of root irrigation liquid in the liquid inlet pipe that enters the interception fixed bucket through a sliding piston and a truncated cone piston, thereby slowing down the speed of irrigation, and divides the interception fixed bucket into multiple areas through the partition plates. The root irrigation liquid in different areas exerts different pressures on the liquid inlet piston, causing the liquid inlet piston to slide, thereby reducing the number of channels entering the root irrigation pipe from the interception fixed bucket, thereby slowing down the flow of the root irrigation liquid, and connecting the root irrigation pipe with the liquid outlet screen, so that the root irrigation liquid slowly penetrates into the soil, thereby slowing down the speed of root irrigation, keeping the root irrigation process longer, and avoiding excessive liquid being injected at one time so that the plant roots are submerged and lack oxygen;

[0019] The present invention cooperates with structures such as an intercepting sliding bucket and an inner arc baffle plate, and liquid flows into the intercepting sliding bucket, thereby driving the intercepting sliding bucket, the inner arc baffle plate and the outer arc baffle plate to slide downward, so that the outer arc baffle plate and the inner arc baffle plate squeeze the soil in the gap of the liquid outlet screen downward, avoiding that the soil is driven to gather in the gap of the liquid outlet screen through the grid of the ventilation grid pipe due to water infiltration in the soil, thereby affecting the efficiency of the root irrigation liquid flowing from the intercepting sliding bucket to the surface of the liquid outlet screen to penetrate downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a half-section schematic diagram of the structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the shunt structure of the present invention;

[0023] Figure 4 A half-section schematic diagram of the flow diversion structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection of the liquid inlet piston of the present invention;

[0025] Figure 6 This is a schematic diagram of the liquid inlet structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the cleaning structure of the present invention;

[0027] Figure 8 A half-section schematic diagram of the connection of the intercepting sliding bucket of the present invention;

[0028] Fig. 9 This is a half-section schematic diagram of the inner and outer extrusion blocks of the present invention;

[0029] Fig.10 It is a half-section schematic diagram of the liquid outlet screen of the present invention.

[0030] In the figure: 10, liquid inlet pipe; 101, ventilation grid pipe; 102, liquid inlet screen; 103, liquid outlet screen; 20, root irrigation tube; 201, interception fixed bucket; 202, partition baffle; 203, diversion flow hole; 204, liquid inlet piston; 2041, limit sliding frame; 2042, lower connecting sliding frame; 2043, upper connecting sliding frame; 30, liquid inlet cover plate; 301, upper sealing ring; 302, lower sealing ring; 303, sliding piston; 3031, limit piston spring ; 3032, cone piston; 3033, connecting plate; 40, intercepting sliding bucket; 401, reset spring; 402, external fixing rod; 4021, external sliding sleeve; 4022, external arc-shaped extrusion block; 4023, external limit spring; 4024, external arc-shaped baffle; 403, internal fixing rod; 4031, internal sliding sleeve; 4032, internal arc-shaped extrusion block; 4033, internal limit spring; 4034, internal arc-shaped baffle; 404, limit block; 4041, arc-shaped sealing plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 10 As shown, the present invention provides a plant root irrigation device for pest control, comprising a liquid inlet pipe 10, a ventilation grid pipe 101 is installed in the liquid inlet pipe 10, a liquid inlet cover plate 30 is fixedly connected in the ventilation grid pipe 101, a root irrigation pipe 20 is fixedly connected in the liquid inlet cover plate 30, and a cut-off sliding bucket 40 is fixedly connected at the lower side of the root irrigation pipe 20;

[0033] The root irrigation tube 20 is fixedly connected with symmetrically distributed interception fixed buckets 201, the interception fixed buckets 201 are fixedly connected with partition baffles 202 distributed in a circumferential array, and the root irrigation tube 20 is slidably connected with liquid inlet pistons 204 distributed in a circumferential array corresponding to the interception fixed buckets 201;

[0034] A sliding piston 303 is slidably connected inside the liquid inlet cover plate 30, a symmetrically distributed connecting plate 3033 is fixedly connected to the lower side of the sliding piston 303, a frustum piston 3032 is fixedly connected to the lower side of the connecting plate 3033, an upper sealing ring 301 is fixedly connected to the upper end of the liquid inlet cover plate 30, and a lower sealing ring 302 is fixedly connected to the lower end of the liquid inlet cover plate 30.

[0035] The above method is adopted: by burying the device in the soil near the plant, when the plant needs to be irrigated, the root irrigation liquid is poured into the liquid inlet pipe 10, and after the root irrigation liquid flows into the conical piston 3032 in the lower sealing ring 302, the conical piston 3032 and the sliding piston 303 move downward by gravity, so that the sliding piston 303 and the upper sealing ring 301 are closed, and the root irrigation liquid is prevented from continuing to enter the lower sealing ring 302. At the same time, the liquid on the conical piston 3032 flows into the intercepting fixed bucket 201 through the gap between the conical piston 3032 and the lower sealing ring 302, and is divided into four areas by the partition plate 202. Since the total amount of root irrigation liquid in the four areas is different, the liquid inlet piston 204 is pushed to slide, so that the root irrigation liquid enters the root irrigation tube 20, and then the root irrigation liquid is poured into the soil under the rhizome of the plant through the root irrigation tube 20.

[0036] like Figures 2 to 5 As shown, the intercepting fixed bucket 201 is provided with circumferentially arrayed branch flow holes 203 , and the branch flow holes 203 , which take the diameter of the root irrigation tube 20 as the axis of symmetry, are at different distances from the axis of the root irrigation tube 20 .

[0037] A lower connecting sliding frame 2042 or an upper connecting sliding frame 2043 is fixedly connected between opposite surfaces of the liquid inlet piston 204, and two ends of the lower connecting sliding frame 2042 and the upper connecting sliding frame 2043 are slidably connected with a limiting sliding frame 2041 corresponding to the liquid inlet piston 204, and the limiting sliding frame 2041 is fixedly connected to the inner wall of the root irrigation canal 20, and the lower connecting sliding frame 2042 and the upper connecting sliding frame 2043 are respectively provided with opposing sliding grooves for the lower connecting sliding frame 2042 and the upper connecting sliding frame 2043 to slide against each other.

[0038] The above method is adopted: the space in the intercepting fixed bucket 201 is divided into four areas by the partitioning partition 202. As the root irrigation liquid flows into the intercepting fixed bucket 201, the pressures borne by the opposite liquid inlet pistons 204 are different according to the different amounts of root irrigation liquid carried in the four areas. Then, the liquid inlet pistons 204 slide to the side with smaller pressure, so that the liquid in the area with larger amount of liquid flows into the root irrigation tube 20.

[0039] If the pressures on the liquid inlet piston 204 are the same, the liquid inlet piston 204 does not slide. With the next root irrigation liquid flowing in, if the liquid amounts are different, the liquid inlet piston 204 slides. If they are the same, the liquid inlet piston 204 waits for each area of ​​the intercepting fixed bucket 201 to be filled with the root irrigation liquid. The distances of the branch flow holes 203 in each area from the axis of the root irrigation tube 20 are different, so that the total amount of liquid in each area of ​​the intercepting fixed bucket 201 is different, thereby ensuring that the root irrigation liquid can enter the root irrigation tube 20 and slowing down the speed of liquid inflow.

[0040] like Figure 6 As shown, a liquid inlet screen 102 is fixedly connected inside the liquid inlet pipe 10, and the lower end of the liquid inlet screen 102 is fixedly connected to the root irrigation tube 20. A limiting piston spring 3031 is arranged between the liquid inlet screen 102 and the sliding piston 303. The sliding piston 303 is slidingly connected to the upper sealing ring 301, and the outer diameter of the sliding piston 303 is consistent with the inner diameter of the upper sealing ring 301.

[0041] The outer diameter of the sliding piston 303 is consistent with that of the conical piston 3032, the inner diameter of the lower sealing ring 302 is consistent with that of the upper sealing ring 301, the distance between the sliding piston 303 and the conical piston 3032 is greater than the distance between the upper sealing ring 301 and the lower sealing ring 302, and the lower sealing ring 302 is on the upper side of the partition partition 202 and does not contact the partition partition 202.

[0042] The above method is adopted: the distance between the sliding piston 303 and the conical piston 3032 is greater than the distance between the upper sealing ring 301 and the lower sealing ring 302, so that after the root irrigation liquid enters the liquid inlet pipe 10, the conical piston 3032 is driven to move downward, and then the sliding piston 303 is driven to move synchronously. When the sliding piston 303 and the upper sealing ring 301 form a closed state, the conical piston 3032 continues to slide downward to the lower side of the lower sealing ring 302, so that the root irrigation liquid on the conical piston 3032 flows to the intercepting fixed bucket 201 through the gap between the lower sealing ring 302 and the conical piston 3032, and the amount of liquid entering the intercepting fixed bucket 201 each time is controlled by the sliding piston 303 and the conical piston 3032 to slow down the speed at which the root irrigation liquid enters the soil near the roots and stems of plants.

[0043] like Figures 7 to 9 As shown, a liquid outlet screen 103 is fixedly connected to the lower end of the ventilation grid tube 101, a return spring 401 is provided between the liquid outlet screen 103 and the intercepting sliding bucket 40, and symmetrically distributed limiting blocks 404 are slidably connected to the intercepting sliding bucket 40, and the limiting blocks 404 are fixedly connected to the root irrigation tube 20, and symmetrically distributed arc-shaped sealing plates 4041 are fixedly connected to the root irrigation tube 20, and the arc-shaped sealing plates 4041 are slidably connected to the intercepting sliding bucket 40;

[0044] The limiting block 404 is fixedly connected to the liquid outlet screen 103 , the arc-shaped sealing plate 4041 is shorter than the limiting block 404 , and the arc-shaped sealing plate 4041 is not in contact with the liquid outlet screen 103 .

[0045] The lower side of the intercepting sliding bucket 40 is fixedly connected to an external fixed rod 402 distributed in a circumferential array, and an external sliding sleeve 4021 is slidably connected to the external fixed rod 402. The lower end of the external sliding sleeve 4021 is fixedly connected to an outer arc-shaped extrusion block 4022. An external limit spring 4023 connected to the external fixed rod 402 and the outer arc-shaped extrusion block 4022 respectively is arranged in the outer sliding sleeve 4021. An outer arc-shaped baffle 4024 is fixedly connected to the side of the outer arc-shaped extrusion block 4022 close to the root irrigation tube 20.

[0046] The lower side of the intercepting sliding bucket 40 is fixedly connected to an inner fixing rod 403 distributed in a circumferential array, the distance between the inner fixing rod 403 and the root irrigation tube 20 is smaller than the distance between the outer fixing rod 402 and the root irrigation tube 20, an inner sliding sleeve 4031 is slidably connected to the inner fixing rod 403, an inner limiting spring 4033 is fixedly connected to the lower end of the inner sliding sleeve 4031, an inner arc-shaped extrusion block 4032 connected to the inner fixing rod 403 and the inner limiting spring 4033 respectively is arranged in the inner sliding sleeve 4031, and an inner arc-shaped baffle 4034 is fixedly connected to the side of the inner limiting spring 4033 close to the root irrigation tube 20.

[0047] The above method is adopted: when there is too much root irrigation liquid, the liquid flows into the intercepting sliding bucket 40 through the bypass flow hole 203, thereby driving the intercepting sliding bucket 40 to slide downward. Since the ventilation grid tube 101 and the liquid outlet screen 103 are in an underground state for a long time, through the flow and infiltration of water in the soil, a part of the soil may flow into the gap of the liquid outlet screen 103 through the grid of the ventilation grid tube 101, causing obstruction, and then the intercepting sliding bucket 40 moves downward to drive the outer arc extrusion block 4022 and the inner arc extrusion block 4032 to squeeze the soil in the gap of the liquid outlet screen 103 downward, thereby avoiding the accumulation of soil on the liquid outlet screen 103 and affecting the efficiency of root irrigation, while ensuring the flow of air in the soil near the roots and stems of plants with the outside world.

[0048] like Fig.10 As shown, the root irrigation tube 20 is fixedly connected to the liquid outlet screen 103 , a channel for root irrigation is provided in the liquid outlet screen 103 , and a through hole distributed in a circumferential array is provided at the lower end of the liquid outlet screen 103 , and the liquid outlet screen 103 is connected to the root irrigation tube 20 .

[0049] The above method is adopted: by injecting the root irrigation liquid in the root irrigation tube 20 into the soil through the through holes of the liquid outlet barrier 103, a slow but long-term root irrigation method is used to ensure that the amount of liquid in the soil near the plant rhizomes is not too much, avoiding problems such as vegetation hypoxia.

[0050] The working principle and use process of the present invention:

[0051] Embodiment 1:

[0052] By placing the device into the soil near the vegetation, the liquid inlet pipe 10 and the liquid inlet screen 102 are flush with or above the ground, and the ventilation grid pipe 101 is below the ground. When the plants need to be irrigated at the roots, the prepared root irrigation liquid is poured into the liquid inlet pipe 10. After the liquid enters the liquid inlet pipe 10, it first flows between the lower sealing ring 302 and the conical piston 3032, thereby driving the conical piston 3032 and the sliding piston 303 to move downward, thereby causing the sliding piston 303 and the upper sealing ring 301 to form a closed structure, so that the root irrigation liquid is stored in the liquid inlet pipe 10.

[0053] When the sliding piston 303 is sealed with the upper sealing ring 301, the liquid on the conical piston 3032 flows into the intercepting fixed bucket 201 through the gap between the conical piston 3032 and the lower sealing ring 302, and then the conical piston 3032 and the sliding piston 303 move upward again under the pulling force of the limiting piston spring 3031, and then the root irrigation liquid flows into the conical piston 3032 and the lower sealing ring 302 again, and the above steps are repeated to continuously transport the root irrigation liquid downward.

[0054] After the liquid enters the intercepting and fixing bucket 201, the root irrigation liquid is separated into four areas of the intercepting and fixing bucket 201 by the partition partition 202. Due to the flow of the liquid, the amount of root irrigation liquid in the four areas of the intercepting and fixing bucket 201 may be different. When the amount of liquid is the same, the next root irrigation liquid is waited for to flow into the intercepting and fixing bucket 201 from the gap between the cone piston 3032 and the lower sealing ring 302 until the total amount of liquid in the relative areas is different. Alternatively, since the branch flow holes 203 in different areas of the intercepting and fixing bucket 201 are at different positions from the axis of the root irrigation tube 20, the total amount of root irrigation liquid in each area of ​​the intercepting and fixing bucket 201 is different. As the root irrigation liquid is injected into the intercepting and fixing bucket 201, the total amount of liquid in the opposite areas of the intercepting and fixing bucket 201 will eventually be different.

[0055] As a result, the pressure on the liquid inlet piston 204 in the root irrigation tube 20 is different, causing the liquid inlet piston 204 to slide to the area with lower pressure, allowing the root irrigation liquid to flow into the root irrigation tube 20, and then connect with the liquid outlet screen 103 through the root irrigation tube 20, so that the root irrigation liquid gradually seeps into the soil through the through holes of the liquid outlet screen 103.

[0056] Embodiment 2:

[0057] As the root irrigation liquid continues to be injected into the intercepting fixed bucket 201 through the cone piston 3032, the liquid level in the root irrigation tube 20 reaches the connection point with the intercepting fixed bucket 201. As the root irrigation liquid continues to be injected into the intercepting fixed bucket 201, the liquid in the intercepting fixed bucket 201 does not pass through the branch flow hole 203, and then flows into the lower intercepting fixed bucket 201. Since the liquid level in the root irrigation tube 20 has reached the maximum, the pressure in the root irrigation tube 20 is consistent with that in the liquid inlet piston 204 at the lower side, resulting in the liquid in the lower intercepting fixed bucket 201 being unable to flow into the root irrigation tube 20, and then accumulating until it flows into the intercepting sliding bucket 40 through the branch flow hole 203.

[0058] As the liquid enters the intercepting sliding bucket 40, the intercepting sliding bucket 40 moves downward, thereby driving the outer fixed rod 402 and the inner fixed rod 403 to move downward, thereby driving the outer sliding sleeve 4021, the outer arc-shaped extrusion block 4022, the inner sliding sleeve 4031 and the inner limit spring 4033 to move downward synchronously, squeezing the soil in the gap of the liquid outlet blocking net 103 to move downward, squeezing the soil in the gap of the liquid outlet blocking net 103 downward, and gathering the soil together through the outer arc-shaped baffle plate 4024 and the inner arc-shaped baffle plate 4034, so as to avoid the accumulation of soil in the gap of the liquid outlet blocking net 103 and causing the injection efficiency to be reduced.

[0059] At the same time, as the intercepting sliding bucket 40 moves downward, the sealed state of the arc sealing plate 4041 and the intercepting sliding bucket 40 is released, so that the root irrigation liquid in the intercepting sliding bucket 40 flows out to the liquid outlet blocking net 103, and then under the elastic force of the reset spring 401, the intercepting sliding bucket 40 is reset upward, driving the outer fixing rod 402 and the inner fixing rod 403 to reset synchronously. At the same time, under the action of the outer limit spring 4023 and the inner limit spring 4033, the outer arc baffle 4024 and the inner arc baffle 4034 are reset.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plant root irrigation device for pest control, comprising a liquid inlet pipe (10), a ventilation grid pipe (101) installed in the liquid inlet pipe (10), a liquid inlet cover plate (30) fixedly connected in the ventilation grid pipe (101), a root irrigation pipe (20) fixedly connected in the liquid inlet cover plate (30), and a cut-off sliding bucket (40) fixedly connected at the lower side of the root irrigation pipe (20), characterized in that: in, The root irrigation tube (20) is fixedly connected with symmetrically distributed intercepting fixed buckets (201), the intercepting fixed buckets (201) are fixedly connected with partition baffles (202) distributed in a circumferential array, and the root irrigation tube (20) is slidably connected with liquid inlet pistons (204) distributed in a circumferential array corresponding to the intercepting fixed buckets (201); A sliding piston (303) is slidably connected inside the liquid inlet cover plate (30), a symmetrically distributed connecting plate (3033) is fixedly connected to the lower side of the sliding piston (303), a truncated cone piston (3032) is fixedly connected to the lower side of the connecting plate (3033), an upper sealing ring (301) is fixedly connected to the upper end of the liquid inlet cover plate (30), and a lower sealing ring (302) is fixedly connected to the lower end of the liquid inlet cover plate (30).

2. The plant root irrigation device for pest control according to claim 1, characterized in that: The intercepting fixed bucket (201) is provided with circumferentially arrayed branch flow holes (203), and the branch flow holes (203) with the diameter of the root irrigation tube (20) as the symmetry axis are at different distances from the axis of the root irrigation tube (20).

3. The plant root irrigation device for pest control according to claim 2, characterized in that: A lower connecting sliding frame (2042) or an upper connecting sliding frame (2043) is fixedly connected between opposite surfaces of the liquid inlet piston (204), and two ends of the lower connecting sliding frame (2042) and the upper connecting sliding frame (2043) are slidably connected to limit sliding frames (2041) corresponding to the liquid inlet piston (204), and the limit sliding frame (2041) is fixedly connected to the inner wall of the root irrigation tube (20), and opposing sliding grooves for the lower connecting sliding frame (2042) and the upper connecting sliding frame (2043) to slide relative to each other are respectively provided on the lower connecting sliding frame (2042) and the upper connecting sliding frame (2043).

4. The plant root irrigation device for pest control according to claim 3, characterized in that: A liquid inlet screen (102) is fixedly connected inside the liquid inlet pipe (10), and the lower end of the liquid inlet screen (102) is fixedly connected to the root irrigation tube (20). A limit piston spring (3031) is provided between the liquid inlet screen (102) and the sliding piston (303). The sliding piston (303) is slidably connected to the upper sealing ring (301), and the outer diameter of the sliding piston (303) is consistent with the inner diameter of the upper sealing ring (301).

5. The plant root irrigation device for pest control according to claim 4, characterized in that: The outer diameters of the sliding piston (303) and the conical piston (3032) are consistent, the inner diameters of the lower sealing ring (302) and the upper sealing ring (301) are consistent, the distance between the sliding piston (303) and the conical piston (3032) is greater than the distance between the upper sealing ring (301) and the lower sealing ring (302), and the lower sealing ring (302) is on the upper side of the partition baffle (202) and does not contact the partition baffle (202).

6. The plant root irrigation device for pest control according to claim 1, characterized in that: A liquid outflow blocking net (103) is fixedly connected to the lower end of the ventilation grid tube (101); a return spring (401) is arranged between the liquid outflow blocking net (103) and the intercepting sliding bucket (40); symmetrically distributed limiting blocks (404) are slidably connected through the intercepting sliding bucket (40); the limiting blocks (404) are fixedly connected to the root irrigation tube (20); symmetrically distributed arc-shaped sealing plates (4041) are fixedly connected to the root irrigation tube (20); and the arc-shaped sealing plates (4041) are slidably connected through the intercepting sliding bucket (40).

7. The plant root irrigation device for pest control according to claim 6, characterized in that: The limiting block (404) is fixedly connected to the liquid outlet screen (103); the arc-shaped sealing plate (4041) is shorter than the limiting block (404); and the arc-shaped sealing plate (4041) is not in contact with the liquid outlet screen (103).

8. The plant root irrigation device for pest control according to claim 7, characterized in that: The lower side of the intercepting sliding bucket (40) is fixedly connected to an external fixing rod (402) distributed in a circumferential array, the external fixing rod (402) is slidably connected to an external sliding sleeve (4021), the lower end of the external sliding sleeve (4021) is fixedly connected to an outer arc-shaped extrusion block (4022), the outer sliding sleeve (4021) is provided with an outer limit spring (4023) respectively connected to the external fixing rod (402) and the outer arc-shaped extrusion block (4022), and the outer arc-shaped extrusion block (4022) is fixedly connected to a side of the outer arc-shaped extrusion block (4022) close to the root irrigation tube (20).

9. The plant root irrigation device for pest control according to claim 8, characterized in that: The lower side of the intercepting sliding bucket (40) is fixedly connected to an inner fixing rod (403) distributed in a circumferential array, the distance between the inner fixing rod (403) and the root irrigation tube (20) is smaller than the distance between the outer fixing rod (402) and the root irrigation tube (20), an inner sliding sleeve (4031) is slidably connected to the inner fixing rod (403), the lower end of the inner sliding sleeve (4031) is fixedly connected to an inner limit spring (4033), an inner arc-shaped extrusion block (4032) connected to the inner fixing rod (403) and the inner limit spring (4033) is arranged in the inner sliding sleeve (4031), and an inner arc-shaped baffle (4034) is fixedly connected to the side of the inner limit spring (4033) close to the root irrigation tube (20).

10. The plant root irrigation device for pest control according to claim 9, characterized in that: The root irrigation pipe (20) is fixedly connected to the liquid outlet screen (103), a channel for root irrigation is provided in the liquid outlet screen (103), through holes distributed in a circumferential array are provided at the lower end of the liquid outlet screen (103), and the liquid outlet screen (103) is in communication with the root irrigation pipe (20).

Images