Irrigation device with water-saving function

Abstract

The utility model provides an irrigation device with a water-saving function, which comprises a pipeline for transporting irrigation water, an irrigation plate is embedded on the pipeline, and drip irrigation holes for water to flow out are arranged on the irrigation plate; the anti-suck-back assembly is arranged on the drip irrigation hole, the anti-suck-back assembly is arranged on one side of the inner cavity of the pipeline, and the actual water outlet geometric area of the drip irrigation hole is adjusted by the anti-suck-back assembly according to the pressure and the water flow in the pipeline; the anti-blocking assembly is arranged on the irrigation plate, and a blocking net for blocking impurities in the pipeline is arranged on the anti-blocking assembly; the upper portion of each drip irrigation hole is of an inverted circular truncated cone structure, and the lower portion is of a cylindrical structure. By means of the anti-suck-back assembly, impurities such as soil can be prevented from being sucked into the drip irrigation holes in the time period when irrigation is not carried out, and blockage near the irrigation plate can be avoided by means of the anti-blocking assembly.

Description

Technical Field

[0001] The utility model relates to an irrigation device with a water-saving function. Background Art

[0002] Water-saving irrigation is an environmentally friendly and sustainable irrigation method that aims to minimize the use of water resources, while drip irrigation is an irrigation method that drips water through pipes to the roots of plants. This can reduce water waste, ensure that plants benefit directly, and reduce evaporation losses.

[0003] Generally, a drip irrigation pipe will be embedded with an irrigation plate on the surface of the pipe, and drip irrigation holes will be drilled on the plate, or drip irrigation holes will be reserved on the surface of the irrigation plate when it is formed. When the water in the pipe passes through the irrigation plate, it will flow out from the drip irrigation holes to achieve drip irrigation. However, when the drip irrigation stops, soil particles and other impurities on the land may be sucked back into the drip irrigation holes, blocking the drip irrigation holes and affecting the next drip irrigation.

[0004] When the water in the pipe enters the drip irrigation hole, that is, near the irrigation plate, the flow rate of the water may decrease, which causes some impurities or particles in the fertilizer to accumulate near the irrigation plate, causing blockage.

[0005] Therefore, in order to solve the above problems, an irrigation device with a water-saving function is provided. Utility Model Content

[0006] The utility model provides an irrigation device with a water-saving function in order to solve the problem that the area where irrigation water enters the drip irrigation hole is easily blocked.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] The utility model provides an irrigation device with a water-saving function, comprising a pipeline for transporting irrigation water, an irrigation plate embedded on the pipeline, and a drip irrigation hole for water to flow out is opened on the irrigation plate;

[0009] An anti-backflow component, which is arranged on the drip irrigation hole and on one side of the inner cavity of the pipeline, and which adjusts the actual geometric area of ​​water outlet of the drip irrigation hole according to the pressure and water flow inside the pipeline;

[0010] An anti-blocking component, the anti-blocking component is arranged on the irrigation plate, and a blocking net for blocking impurities inside the pipeline is arranged on the anti-blocking component;

[0011] The upper part of the drip irrigation hole is an inverted truncated cone structure, and the lower part is a cylindrical structure.

[0012] In the present technical solution, the anti-backflow assembly includes a mounting plug, which is arranged at the top of the drip irrigation hole. A placement cavity for anti-blocking is opened at the bottom of the mounting plug. The anti-blocking plug is at the top of the columnar structure of the drip irrigation hole. The anti-blocking is connected to the adjustment part, and the adjustment part adjusts the position of the anti-blocking according to the size of the water flow.

[0013] Further, the adjustment part includes a first elastic member, the bottom end of the first elastic member is connected to the anti-blocking, and the top of the first elastic member is connected to the inner wall of the placement cavity;

[0014] A pull rope, one end of which is connected to the center of the anti-blocking top side wall, and the other end of which passes through the through hole inside the mounting plug and is connected to the baffle plate, the baffle plate is slidably connected to a slide groove provided on the top side wall of the mounting plug, a guide roller is provided on one side of the baffle plate, and the pull rope passes around the guide roller and overlaps the guide roller.

[0015] Furthermore, it also includes a guide part, which is composed of a connecting plate and a guide plate. The guide plate is arranged obliquely and becomes higher and higher along the direction of water flow. The guide plate is fixed to the surface of the mounting plug by two symmetrically arranged connecting plates.

[0016] In the present technical solution, the anti-blocking component includes a sealing column, which is arranged on the irrigation plate and passes through the irrigation plate. The top of the sealing column is connected to a fixing rod, and the fixing rod is located inside the pipe. The surface of the fixing rod is respectively connected to four skeletons through four connecting parts, and a blocking net is arranged between the skeleton and the fixing rod.

[0017] Preferably, the connecting portion is a retractable connecting portion, the outer side wall of the frame is connected with a guide plate inclined in the opposite direction of the water flow, and the connecting portion is provided with a second elastic member that can cause it to contract.

[0018] Specifically, the telescopic part is composed of a plurality of interconnected connecting shafts, two adjacent connecting shafts are rotatably connected and form a "V"-shaped structure, the connecting shafts located at the two ends of the connecting part are respectively rotatably connected to the skeleton and the fixed rod, and a second elastic member is arranged between the two adjacent connecting shafts, and the two ends of the second elastic member are respectively connected to the two connecting shafts.

[0019] Furthermore, it also includes a contraction component, which drives the four frames to contract, the connecting parts to contract, the connecting parts drive the frames to contract, and the contraction of the frames gathers the barrier net.

[0020] Furthermore, the gathering assembly includes a threaded rod, one end of which is located in the cavity inside the sealing column, and the threaded rod passes through the bottom side wall of the sealing column and extends to the cavity, the threaded rod and the side wall of the cavity are bolted, and the top of the threaded rod is connected to the frame through a connecting piece.

[0021] Furthermore, the connecting member includes a connecting sealing portion and a pulling portion, the connecting sealing portion is connected to the skeleton through the pulling portion, the connecting sealing portion includes a fixed shaft, the fixed shaft is connected to the top of the threaded rod, the top of the fixed shaft is connected to a lower sealing plug, the top of the lower sealing plug is connected to a transmission rod, the top of the transmission rod passes through the upper side wall of the cavity through a through hole and extends into the inner cavity of the fixed rod, the top of the transmission rod is fixed with an upper sealing plug, and the upper sealing plug and the lower sealing plug can be respectively sealed and connected to the top and bottom of the through hole on the sealing column.

[0022] Furthermore, the pulling part is connected by a driving rope and four transmission ropes, one end of the four transmission ropes are respectively connected to four skeletons, and the other end of the transmission rope passes through the side wall of the fixed rod and is connected to the driving rope. The driving rope is located in the inner cavity of the fixed rod, and the driving rope is connected to the upper sealing plug.

[0023] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0024] The positive and progressive effects of the utility model are:

[0025] The anti-backflow component can prevent impurities such as soil from being sucked into the drip irrigation holes during the period when no irrigation is performed, and the anti-blocking component can prevent blockage near the irrigation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of a half-section of the anti-backflow component of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the anti-blocking component of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the anti-blocking component with a convergence component of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the framework and barrier net of the utility model in a normal state;

[0031] Figure 6 It is a cross-sectional structural schematic diagram of the material taking component of the utility model;

[0032] Figure 7 It is a schematic diagram of the position relationship between the ejection part and the placement shell of the utility model.

[0033] Description of Reference Numerals

[0034] 1. Pipeline;

[0035] 2. Irrigation plate; 21. Drip irrigation hole;

[0036] 3. Anti-backflow assembly; 31. Mounting plug; 31a. Through hole; 32. Anti-blocking; 33. Placement cavity; 34. First elastic member; 35. Draw rope; 36. Guide roller; 37. Baffle plate; 38. Slideway; 39. Connecting plate; 39a. Guide plate;

[0037] 4. Anti-blocking assembly; 41. Sealing column; 42. Fixing rod; 43. Connecting part; 44. Frame; 45. Drainage plate; 46. Barrier net; 47. Rotating plate; 48. Second elastic member;

[0038] 5. Clamping assembly; 51. Threaded rod; 52. Fixed shaft; 53. Lower sealing plug; 54. Transmission rod; 55. Upper sealing plug; 56. Drive rope; 57. Transmission rope; 58. Auxiliary plate. DETAILED DESCRIPTION

[0039] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0040] like Figure 1 As shown, the irrigation device with water-saving function comprises a pipe 1 for transporting irrigation water, an irrigation plate 2 is embedded on the pipe 1, and a drip irrigation hole 21 for water to flow out is opened on the irrigation plate 2;

[0041] The anti-backflow component 3 is arranged on the drip irrigation hole 21, and the anti-backflow component 3 is arranged on one side of the inner cavity of the pipeline 1, and the anti-backflow component 3 adjusts the actual geometric area of ​​the drip irrigation hole 21 for water discharge according to the pressure and water flow inside the pipeline 1;

[0042] The anti-blocking component 4 is arranged on the irrigation plate 2 , and a blocking net 46 for blocking impurities inside the pipeline 1 is arranged on the anti-blocking component 4 .

[0043] The upper part of the drip irrigation hole 21 is an inverted truncated cone structure, and the lower part is a cylindrical structure.

[0044] Embodiment 1

[0045] As one of the embodiments of this technical solution, Figure 2 As shown, the anti-backflow component 3 includes a mounting plug 31, which is arranged at the top of the drip irrigation hole 21. A placement cavity 33 for placing an anti-clogging 32 is opened at the bottom of the mounting plug 31. The anti-clogging 32 is plugged at the top of the columnar structure of the drip irrigation hole 21. The anti-clogging 32 is connected to the adjustment part, and the adjustment part adjusts the position of the anti-clogging 32 according to the size of the water flow.

[0046] The mounting plug 31 is fixed on the irrigation plate 2 by a connecting rod, that is, when the water flow is large, under the action of the adjustment part, the actual geometric area of ​​the drip irrigation hole 21 for water outlet increases, and vice versa. Since the top of the drip irrigation hole 21 is an inverted truncated cone structure, the higher the height of the anti-clogging 32, the larger the actual geometric area of ​​the drip irrigation hole 21 for water outlet.

[0047] Further, the adjustment part includes a first elastic member 34, the bottom end of the first elastic member 34 is connected to the anti-blocking 32, and the top of the first elastic member 34 is connected to the inner wall of the placement cavity 33;

[0048] A pull rope 35, one end of which is connected to the center of the top side wall of the anti-blocking 32, and the other end of which passes through the through hole 31a inside the mounting plug 31 and is connected to the baffle 37, the baffle 37 is slidably connected to a slide groove 38 provided on the top side wall of the mounting plug 31, a guide roller 36 is provided on one side of the baffle 37, the pull rope 35 passes around the guide roller 36 and overlaps with the guide roller 36.

[0049] The anti-blocking member 32 slides inside the placement cavity 33 .

[0050] The baffle plate 37 slides along the axial direction of the pipeline 1 , and the guide roller 36 is fixed on the mounting plug 31 or the connecting plate 39 .

[0051] It also includes a guide part, which is composed of a connecting plate 39 and a guide plate 39a. The guide plate 39a is arranged obliquely, and along the direction of water flow, the guide plate 39a becomes higher and higher. The guide plate 39a is fixed to the surface of the mounting plug 31 by two symmetrically arranged connecting plates 39.

[0052] The top surface of the mounting plug 31 , the guide plate 39 a and the two connecting plates 39 together form a guide cavity, and the baffle plate 37 is located inside the guide cavity.

[0053] When water enters the diversion cavity, due to the inclined arrangement of the diversion plate 39a, the water flow has a small entrance into the diversion cavity, and the water pressure impacting on the baffle plate 37 increases, which increases the sensitivity of the diversion plate 39a to the water flow pressure. This facilitates the movement of the diversion plate 39a and prevents the anti-clogging 32 from being plugged in the cylindrical part of the drip irrigation hole 21 when the water flow is too small.

[0054] In this embodiment, water for drip irrigation flows inside the pipe 1. When the water flows through the baffle plate 37, it pushes the baffle plate 37 to slide on the surface of the mounting plug 31. The baffle plate 37 drives the pull rope 35 to move during the sliding process. The pull rope 35 drives the anti-blocking 32 to move upward during the movement. During the upward movement, the anti-blocking 32 separates from the top of the cylindrical part of the drip irrigation hole 21 and enters the placement cavity 33. At this time, the first elastic member 34 is deformed and contracted, and water flows out of the drip irrigation hole 21 to achieve drip irrigation.

[0055] After drip irrigation is completed, the water in the pipe 1 no longer flows, and the baffle 37 is no longer pushed by the impact of the water flow. The first elastic member 34 drives the anti-clogging 32 to move downward during the process of restoring the deformation, so that the anti-clogging 32 is plugged in the cylindrical part of the drip irrigation hole 21 to prevent impurities from being sucked back into the drip irrigation hole 21.

[0056] Embodiment 2

[0057] As another embodiment of the present technical solution, Figure 3 As shown, the anti-blocking component 4 includes a sealing column 41, which is arranged on the irrigation plate 2 and penetrates the irrigation plate 2. The top of the sealing column 41 is connected to a fixing rod 42, and the fixing rod 42 is located inside the pipeline 1. The surface of the fixing rod 42 is respectively connected to four skeletons 44 through four connecting parts 43, and a blocking net 46 is arranged between the skeleton 44 and the fixing rod 42.

[0058] The sealing column 41 is threadedly connected to the irrigation plate 2, and the four fixings are all on the arc-shaped structure. The skeleton 44 of the arc-shaped structure fits closely with the inner cavity of the pipeline 1, which is convenient for blocking impurities. The surface of the sealing column 41 is connected to a rotating plate 47 that can overlap with the pipeline 1, and the sealing column 41 is rotated by the rotating plate 47.

[0059] The fixing rod 42 can be driven to rotate by rotating the sealing column 41, thereby driving the blocking net 46 to rotate, so that the impurities on the blocking net 46 can be shaken off and flow away with the high-pressure water flow used for cleaning.

[0060] Furthermore, the connecting portion 43 is a retractable connecting portion 43, such as Figure 7 As shown, the outer wall of the frame 44 is connected with a guide plate 45 which is inclined in the opposite direction of the water flow, and the connecting portion 43 is provided with a second elastic member 48 which can shrink the connecting portion 43.

[0061] When the water flow is strong, the water flow pushes the guide plate 45 to move outward, even if the frame 44 moves toward the side away from the fixing rod 42, the second elastic member 48 deforms and stretches, so that the blocking net 46 is further expanded to block more impurities.

[0062] When the water flow is small, the second elastic member 48 is deformed and shortened, driving the barrier net 46 to contract, preventing the barrier net 46 from affecting the water flow and water pressure, thereby facilitating drip irrigation. However, at this time, the barrier net 46 is still in an expanded state.

[0063] Through the expansion and contraction of the second elastic member 48 , the blocking net 46 in the anti-blocking component 4 can be further expanded and contracted according to the size of the water flow, thereby improving the adaptability of the anti-blocking component 4 .

[0064] Furthermore, the telescopic portion is composed of a plurality of interconnected connecting shafts, two adjacent connecting shafts are rotatably connected and present a "V"-shaped structure, the connecting shafts located at the two ends of the connecting portion 43 are rotatably connected to the skeleton 44 and the fixed rod 42 respectively, and a second elastic member 48 is arranged between the two adjacent connecting shafts, and the two ends of the second elastic member 48 are respectively connected to the two connecting shafts.

[0065] When the telescopic portion is telescoped, the angle between two adjacent connecting axes increases or decreases.

[0066] Embodiment 3

[0067] This embodiment is derived on the basis of the second embodiment. Figure 4 For a clearer expression, Figure 4 The blocking net 46 is not drawn above, and also includes a gathering component 5, which drives the four skeletons 44 to shrink, the connecting part 43 to shrink, the connecting part 43 drives the skeleton 44 to shrink, the skeleton 44 shrinks and gathers the blocking net 46, reducing the area occupied by the blocking net 46 in the pipeline 1.

[0068] Furthermore, the gathering assembly 5 includes a threaded rod 51, one end of which is located in the cavity inside the sealing column 41, and the threaded rod 51 passes through the bottom side wall of the sealing column 41 and extends to the cavity, the threaded rod 51 and the side wall of the cavity are bolted, and the top of the threaded rod 51 is connected to the skeleton 44 through a connecting piece.

[0069] Furthermore, the connecting member includes a connecting sealing portion and a pulling portion, the connecting sealing portion is connected to the skeleton 44 through the pulling portion, the connecting sealing portion includes a fixed shaft 52, the fixed shaft 52 is connected to the top of the threaded rod 51, the top of the fixed shaft 52 is connected to the lower sealing plug 53, the top of the lower sealing plug 53 is connected to the transmission rod 54, the top of the transmission rod 54 passes through the upper side wall of the cavity through the through hole and extends into the inner cavity of the fixed rod 42, the top of the transmission rod 54 is fixed with an upper sealing plug 55, the upper sealing plug 55 and the lower sealing plug 53 can be respectively sealed and connected to the top and bottom of the through hole on the sealing column 41.

[0070] Furthermore, the pulling part is connected by a driving rope 56 and four transmission ropes 57, one end of the four transmission ropes 57 is connected to the four skeletons 44 respectively, and the other end of the transmission rope 57 passes through the side wall of the fixed rod 42 and is connected to the driving rope 56. The driving rope 56 is located in the inner cavity of the fixed rod 42, and the driving rope 56 is connected to the upper sealing plug 55.

[0071] In this embodiment, if Figure 6As shown, the threaded rod 51 is rotated by the auxiliary plate 58, and the threaded rod 51 rotates on the side wall of the sealing column 41. The threaded rod 51 moves toward the side away from the sealing column 41 in the automatic process, thereby driving the fixed shaft 52 to move. The fixed shaft 52 drives the driving rope 56 to move through the transmission rod 54, and the driving rope 56 drives the transmission rope 57 to move. The transmission rope 57 pulls the skeleton 44 to move toward one side of the fixed rod 42 until the upper sealing plug 55 on the top of the transmission rod 54 is plugged at the top of the through hole. At this time, the blocking net 46 on the skeleton 44 is completely retracted.

[0072] Specifically, the transmission rope 57 has a sufficient length, and when the frame 44 drives the blocking net 46 to further unfold, the transmission rope 57 will not hinder the unfolding of the frame 44 until the second elastic member 48 stretches to the limit position.

[0073] The length of the transmission rope 57 can be preferably such that when the skeleton 44 is unfolded to the extreme position, the transmission rope 57 tightens the skeleton 44, and the second elastic member 48 does not extend to the extreme state. The skeleton 44 is restricted by the transmission rope 57 to prevent the second elastic member 48 from being in a fully extended state for a long time, thereby shortening the service life of the second elastic member 48.

[0074] like Figure 5 As shown, when the skeleton 44 is in the normal position, the lower sealing plug 53 on the fixed shaft 52 is plugged at the bottom of the through hole.

[0075] The first elastic member 34 and the second elastic member 48 in the first and second embodiments are spring sheets, springs or other components that can play the same or similar roles.

[0076] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. An irrigation device with a water-saving function, comprising a pipe (1) for transporting irrigation water, an irrigation plate (2) embedded in the pipe (1), and a drip irrigation hole (21) for water to flow out of the irrigation plate (2), characterized in that: An anti-backflow component (3), the anti-backflow component (3) being arranged on the drip irrigation hole (21), and the anti-backflow component (3) being arranged on one side of the inner cavity of the pipeline (1), and the anti-backflow component (3) adjusting the actual geometric area of ​​water outlet of the drip irrigation hole (21) according to the pressure and water flow inside the pipeline (1); An anti-blocking component (4), wherein the anti-blocking component (4) is arranged on the irrigation plate (2), and a blocking net (46) is arranged on the anti-blocking component (4) for blocking impurities inside the pipeline (1); The upper part of the drip irrigation hole (21) is an inverted truncated cone structure, and the lower part is a cylindrical structure.

2. The irrigation device with water-saving function as claimed in claim 1, characterized in that: The anti-backflow component (3) comprises a mounting plug (31), the mounting plug (31) being arranged at the top of the drip irrigation hole (21), the bottom of the mounting plug (31) being provided with a placement cavity (33) for placing an anti-clogging (32), the anti-clogging (32) being plugged at the top of the columnar structure of the drip irrigation hole (21), the anti-clogging (32) being connected to an adjustment part, and the adjustment part adjusting the position of the anti-clogging (32) according to the size of the water flow.

3. The irrigation device with water-saving function as claimed in claim 2, characterized in that: The adjustment portion comprises a first elastic member (34), the bottom end of the first elastic member (34) is connected to the anti-blocking (32), and the top of the first elastic member (34) is connected to the inner wall of the placement cavity (33); A pull rope (35), one end of which is connected to the center of the top side wall of the anti-blocking (32), and the other end of which passes through the through hole (31a) inside the mounting plug (31) and is connected to the baffle (37), the baffle (37) being slidably connected to a slide groove (38) provided on the top side wall of the mounting plug (31), a guide roller (36) being provided on one side of the baffle (37), the pull rope (35) passing around the guide roller (36) and overlapping the guide roller (36).

4. The irrigation device with water-saving function as claimed in claim 2, characterized in that: The invention also comprises a guide part, which is composed of a connecting plate (39) and a guide plate (39a). The guide plate (39a) is arranged obliquely, and along the direction of water flow, the guide plate (39a) becomes higher and higher. The guide plate (39a) is fixed to the surface of the mounting plug (31) through two symmetrically arranged connecting plates (39).

5. The irrigation device with water-saving function as claimed in claim 1, characterized in that: The anti-blocking assembly (4) comprises a sealing column (41), the sealing column (41) is arranged on the irrigation plate (2) and penetrates the irrigation plate (2), the top of the sealing column (41) is connected to a fixing rod (42), the fixing rod (42) is located inside the pipeline (1), the surface of the fixing rod (42) is respectively connected to four skeletons (44) through four connecting parts (43), and a blocking net (46) is arranged between the skeleton (44) and the fixing rod (42).

6. The irrigation device with water-saving function as claimed in claim 5, characterized in that: The connecting portion (43) is a retractable connecting portion (43), the outer side wall of the frame (44) is connected with a guide plate (45) inclined in the opposite direction of the water flow, and the connecting portion (43) is provided with a second elastic member (48) capable of shrinking the connecting portion (43).

7. The irrigation device with water-saving function as claimed in claim 6, characterized in that: The invention also comprises a telescopic part, wherein the telescopic part is composed of a plurality of interconnected connecting shafts, wherein two adjacent connecting shafts are rotatably connected and present a "V"-shaped structure, wherein the connecting shafts located at the two ends of the connecting part (43) are rotatably connected to the frame (44) and the fixing rod (42), respectively, and a second elastic member (48) is arranged between the two adjacent connecting shafts, wherein the two ends of the second elastic member (48) are respectively connected to the two connecting shafts.

8. The irrigation device with water-saving function according to claim 5 or 6, characterized in that: It also includes a contraction component (5), which drives the four frames (44) to contract, the connection part (43) to contract, the connection part (43) drives the frame (44) to contract, and the frame (44) contracts to gather the blocking net (46).

9. The irrigation device with water-saving function as claimed in claim 8, characterized in that: The bundling assembly (5) comprises a threaded rod (51), one end of the threaded rod (51) is located in the cavity inside the sealing column (41), and the threaded rod (51) passes through the bottom side wall of the sealing column (41) and extends to the cavity, the threaded rod (51) and the side wall of the cavity are connected by bolts, and the top of the threaded rod (51) is connected to the frame (44) through a connecting piece; The connecting member comprises a connecting sealing portion and a pulling portion, wherein the connecting sealing portion is connected to the frame (44) via the pulling portion, and the connecting sealing portion comprises a fixed shaft (52), wherein the fixed shaft (52) is connected to the top of the threaded rod (51), wherein the top of the fixed shaft (52) is connected to a lower sealing plug (53), wherein the top of the lower sealing plug (53) is connected to a transmission rod (54), wherein the top of the transmission rod (54) passes through the upper side wall of the cavity through a through hole and extends into the inner cavity of the fixed rod (42), wherein the top of the transmission rod (54) is fixed to an upper sealing plug (55), and the upper sealing plug (55) and the lower sealing plug (53) can be respectively sealed and connected to the top and bottom of the through hole on the sealing column (41).

10. The irrigation device with water-saving function as claimed in claim 9, characterized in that: The pulling part is connected by a driving rope (56) and four transmission ropes (57), one end of the four transmission ropes (57) is connected to the four skeletons (44) respectively, and the other end of the transmission rope (57) passes through the side wall of the fixed rod (42) and is connected to the driving rope (56). The driving rope (56) is located in the inner cavity of the fixed rod (42), and the driving rope (56) is connected to the upper sealing plug (55).

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