Self-propelled point-like irrigation device

Abstract

The invention discloses a self-propelled punctiform irrigation device, and relates to the technical field of irrigation, the self-propelled punctiform irrigation device comprises a vehicle body, a plurality of groups of irrigation mechanisms are arranged on the vehicle body, each irrigation mechanism comprises a base pipe and a movable pipe matched with the base pipe, the movable pipes are used for extending into the ground for infiltrating irrigation, one end, used for irrigation, of each base pipe is provided with a spray head, and the spray heads are arranged on the base pipes. The spray head and the base pipe are structurally wedged and can be in butt joint, a gear is fixedly connected to the spray head, a rack is meshed with the gear and used for changing the butt joint state of the spray head and the base pipe, and the base pipe and / or the movable pipe are / is communicated with an external water supply pipe. According to the self-propelled point-shaped irrigation device, by moving the rack, the gear drives the spray head to be disengaged from the base pipe, and in the state, the movable pipe can extend out of the base pipe to the underground for infiltrating irrigation, so that the irrigation mechanism can perform irrigation, sprinkling irrigation or infiltrating irrigation according to implementation requirements; the most appropriate irrigation mode can be selected according to different scenes and crop growth stages, and the irrigation efficiency and effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation, in particular to a self-propelled point irrigation device. Background Art

[0002] The self-propelled point watering device is a device that can move in park green spaces and perform precise irrigation, and is generally used for sprinkler irrigation or watering.

[0003] In actual garden scenes, especially in flower borders, plants with different habits are often planted together. Different plants have different water requirements and cycles. When several plants with different water requirements are planted close together, different plants need to be accurately watered. There are two existing irrigation methods: sprinkler irrigation and drip irrigation. In this method, the amount of water received by plants within the radiation range of the sprinkler is basically the same, and the water is basically covered from top to bottom when spraying. This makes it impossible for plants to receive water accurately from the water demand and the position where they receive water spraying; in the drip method, plants can only receive water accurately at the roots, but a dropper is required under each plant, which is more expensive.

[0004] In order to solve the above problems, we propose a self-propelled point watering device. Summary of the invention

[0005] [Technical issues solved] In view of the deficiencies in the prior art, the present invention provides a self-propelled point watering device having advantages such as targeted irrigation, which can effectively solve the problems in the background technology.

[0006]

Technical solution

[0007] Preferably, the vehicle body includes a water supply pipe and a running wheel. The running wheel may be equipped with a driving mechanism for driving the running wheel, such as an engine. Since self-propelled movement is required, the vehicle body mainly includes a reeling mechanism for reeling in the water supply pipe, such as Figure 1 As shown in the state, those skilled in the art can understand that, according to actual implementation requirements, the vehicle body can be erected with reference to the prior art, so no further elaboration is made here.

[0008] Preferably, the base pipe and / or movable pipe is connected to a water supply pipe on the vehicle body, or can be directly connected to an external water supply pipe without installing a water supply pipe on the vehicle body, thereby reducing the space occupied by the vehicle body.

[0009] Preferably, the base pipe is fixedly connected to the outside and may be fixed to a truss of the vehicle body. A telescopic driving member is arranged on the truss of the vehicle body. The telescopic driving member adopts any telescopic driving member well known to technicians in the field such as an oil cylinder, a pneumatic cylinder or an electric push rod. The end of the telescopic section of the telescopic driving member is fixedly connected to the movable tube without affecting its normal operation. Because there are multiple groups of irrigation mechanisms, the movable tubes in the multiple groups of irrigation mechanisms can be connected to the same telescopic driving member.

[0010] Preferably, the rack can be fastened and movably connected to the outside, or can be fastened and movably connected to the truss of the vehicle body, wherein any fastening measures known to technicians in the field can be used for fastening, such as bolts, pins, etc., to limit the self-movement of the rack.

[0011] Preferably, in order to improve the degree of automation of the irrigation device, similar to the movable pipe, the racks of multiple groups of irrigation mechanisms can also be connected to the same telescopic driving member.

[0012] Preferably, a branch pipe that fits and can be docked with the base pipe structure is fixedly connected to the nozzle, and the gear connected to the nozzle is fixedly connected to the branch pipe. The gear is rotatably connected to the outside through a pin shaft, which can be on the truss of the vehicle body or on the base pipe.

[0013] Preferably, when both the base pipe and the movable pipe are connected to an external water supply pipe, the base pipe and the movable pipe are provided with a water pipe and a valve independently connected to the water supply pipe, so that the connection status of the base pipe and the movable pipe can be separately and independently controlled.

[0014] Preferably, when the movable pipe is connected to the water supply pipe only through the base pipe, a liquid inlet is provided at the part of the movable pipe located inside the base pipe when the movable pipe is extended underground for normal infiltration irrigation. At this time, the base pipe is connected to the movable pipe based on the liquid inlet.

[0015] Preferably, when the movable pipe is connected to the water supply pipe only, when the movable pipe is retracted into the base pipe for normal irrigation, the water seepage portion on the movable pipe is connected to the base pipe.

[0016] Preferably, the dynamic sealing connection between the base pipe and the movable pipe is mainly achieved by a sealing ring arranged therebetween. It can be understood by those skilled in the art that the position of the sealing ring is set according to the connection state between the base pipe and the movable pipe. Preferably, sealing rings are arranged in three sections on the movable pipe, such as Figure 3In the structural state shown, one sealing ring is located at the upper end of the water seepage section, and the other two sealing rings are distributed on the movable tube at the position inside the base tube when the movable tube is fully extended, so that no matter what position the movable tube is in, or what connection state the base tube, the movable tube and the water supply pipe are in, a good dynamic sealing connection can be formed.

[0017] Preferably, the movable pipe comprises a water seepage section as a water seepage portion, and a force applying section is provided at one end of the movable pipe used for irrigation, and the force applying section is a conical structure.

[0018] Preferably, the water seepage section is located at a position slightly above and below the stress-bearing section, and a plurality of holes are provided at the water seepage section on the stress-bearing section. The plurality of holes are grouped in an axial annular array based on the stress-bearing section and in a path array, thereby ensuring uniformity of water seepage.

[0019] Preferably, the force-applying section and the water-seepage section are integrally formed from a pipe body, or are fixedly connected after a modular design.

[0020] Preferably, the movable tube further comprises a force-bearing section, and a spiral groove is provided at the force-bearing section.

[0021] Preferably, the force-bearing section, the water seepage section and the force-applying section are integrally formed from a pipe body, or are fixedly connected together after a modular design.

[0022] Preferably, a guide protrusion is provided on the base pipe for cooperating with the spiral groove, and when the movable pipe moves relative to the base pipe based on the force-bearing section, it rotates based on the spiral groove and through the guide protrusion.

[0023] Preferably, the guide protrusion is formed integrally with the base tube, or is fixed to the base tube by a spherical object such as a steel ball, or can be a rotating part such as a roller.

[0024] Preferably, a thread is provided on the force-applying section of the movable tube.

[0025] Preferably, the thread is more raised than the surface of the force-applying section, so as to be able to apply force to the maximum extent and be more stable during the process of infiltration and drilling.

[0026] Preferably, when the movable pipe is connected to the water supply pipe only, a three-way valve is provided at one end of the non-irrigation part of the movable pipe and connected thereto, one of the three-way valves not connected to the movable pipe is connected to the base pipe, and the other is connected to the external water supply pipe, and a water inlet hole is provided on the base pipe.

[0027] Preferably, a rotating joint is provided between the three-way valve and the movable tube, and the three-way valve is rotatably connected to the movable tube via the rotating joint.

[0028] Preferably, a hose is provided between the base pipe and the three-way valve, one of the three-way valves connected to the base pipe is communicated through the hose, and both ends of the hose are fixedly connected to the base pipe and the three-way valve respectively. The hose is not limited in material, and mainly utilizes the deformable property of the hose.

[0029] Preferably, the valve stem on the three-way valve is also connected to a gear and is located in the same vertical direction as the gear connected to the nozzle, and the rack meshing with the gear on the nozzle extends to the three-way valve and meshes with the gear attached thereto.

[0030] Preferably, the gear connected to the three-way valve is fixedly connected to the valve stem thereon.

[0031] Preferably, the gear is provided with a limiting groove, and a limiting section is provided at a position on the rack corresponding to the limiting groove, and the structure of the limiting section matches that of the limiting groove.

[0032] Preferably, when the rack drives the gear to rotate so that the base tube can be extended normally, during the continuous movement of the rack, the limit section on the rack engages with the limit groove on the gear, thereby ensuring that after the gear rotates to completely change the state of the corresponding nozzle or three-way valve, the continuous movement of the rack will no longer change the state of the gear. This fault-tolerant design can make up for the defect that the rotation stroke of the valve stem on the three-way valve is inconsistent with the stroke that the nozzle should flip, thereby reducing the design strength.

[0033] Preferably, a cleaning tube is also provided on the nozzle, and the structure of the cleaning tube matches that of the movable tube. When the nozzle is flipped by the cooperation of the rack and the gear so that the movable tube can be normally extended, the cleaning tube is on the same axial direction of the base tube.

[0034] Preferably, a cleaning member is fixedly connected to the interior of the cleaning tube, and the cleaning member is made of flexible materials such as sponge and bristles.

[0035] Preferably, the flip angle of the nozzle is 90°, and the cleaning tube is vertically installed based on its axial direction relative to the axial direction of the nozzle, so that the angle of the nozzle rotation stroke is standardized into a scalar, which is beneficial to reducing the design strength.

[0036]

Beneficial Effects

[0037] Figure 1 The figure is a schematic diagram of the overall structure of a self-propelled point watering device of the present invention.

[0038] Figure 2 The present invention is a schematic structural diagram of an irrigation mechanism in a self-propelled point irrigation device.

[0039] Figure 3 The present invention is a structural analysis diagram of an irrigation mechanism in a self-propelled point irrigation device.

[0040] Figure 4 The present invention is a schematic diagram of the structure of a gear and a rack used in an irrigation mechanism of a self-propelled point irrigation device.

[0041] Figure 5 The present invention is a schematic diagram of the structure of a movable pipe used in an irrigation mechanism of a self-propelled point irrigation device.

[0042] Figure 6 The present invention is a front view of an irrigation mechanism in a self-propelled point irrigation device.

[0043] Figure 7 The present invention is a schematic structural diagram of an irrigation mechanism in a self-propelled point watering device as a preferred embodiment.

[0044] In the figure: 1. Vehicle body; 2. Irrigation mechanism; 21. Base pipe; 22. Movable pipe; 23. Nozzle; 24. Gear; 25. Rack; 26. Three-way valve; 211, water inlet hole; 212, guide protrusion; 221, force-bearing section; 222, water seepage section; 223, force-applying section; 224, sealing ring; 2211, spiral groove; 2221, hole; 2231, thread; 231, in charge; 241, limit slot; 251, meshing section; 252, limiting section; 261. Hose; 262. Connecting pipe fittings; 27. Cleaning pipe; 271. Cleaning parts. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, objectives and functional effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings 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.

[0046] [Example 1] In order to address the shortcomings of the existing technology, such as Figure 1 As shown, the present invention provides a self-propelled point irrigation device, including a vehicle body 1, on which a plurality of irrigation mechanisms 2 are arranged, the vehicle body 1 includes a water supply pipe and a running wheel, and the running wheel can be equipped with a driving mechanism for driving the rotation thereof, such as an engine, because it is necessary to move self-propelled, the vehicle body 1 mainly includes a reeling mechanism for reeling in the water supply pipe, such as Figure 1 As shown in the state, those skilled in the art can understand that, according to actual implementation requirements, the vehicle body 1 can be erected with reference to the prior art, so no further details will be given here.

[0047] The position state of the irrigation mechanism 2 can be set up according to actual implementation requirements, and is not limited to a row array, but can also be arranged in a column.

[0048] It should be noted that before irrigation, the operation mode of the irrigation mechanism 2 is selected according to the actual implementation needs, infiltration irrigation or sprinkler irrigation. The vehicle body 1 must be connected to an external water pipe for water supply, and then the vehicle body 1 is moved to drive several irrigation mechanisms 2 to perform sprinkler irrigation or fixed-point infiltration irrigation.

[0049] Specifically, Figure 2 As shown, an irrigation mechanism 2 for a self-propelled point-shaped irrigation device, the irrigation mechanism 2 includes a base pipe 21, a movable pipe 22 that is relatively movable with the base pipe 21, and the movable pipe 22 is dynamically sealed and connected to the base pipe 21, the movable pipe 22 is used to extend into the ground for infiltration irrigation, a nozzle 23 is provided at one end of the base pipe 21 for irrigation, the nozzle 23 and the structure of the base pipe 21 are matched and can be docked, a gear 24 is fixedly connected to the nozzle 23, and a rack 25 is meshed with the gear 24, which is used to change the docking state of the nozzle 23 and the base pipe 21, and the base pipe 21 and / or the movable pipe 22 are connected to an external water supply pipe; The base pipe 21 and / or the movable pipe 22 are connected to the water supply pipe on the vehicle body 1, or can be directly connected to the external water supply pipe, without installing the water supply pipe on the vehicle body 1, thereby reducing the space occupied by the vehicle body 1; The base pipe 21 is fixedly connected to the outside, and can be fixed on the truss of the vehicle body 1. A telescopic driving member is arranged on the truss of the vehicle body 1. The telescopic driving member adopts any telescopic driving member known to those skilled in the art, such as an oil cylinder, an air cylinder or an electric push rod. The end of the telescopic section of the telescopic driving member is fixedly connected to the movable pipe 22 without affecting its normal operation. Because there are multiple groups of irrigation mechanisms 2, the movable pipes 22 in the multiple groups of irrigation mechanisms 2 can be connected to the same telescopic driving member. The rack 25 can be fastened and movably connected to the outside, or can be fastened and movably connected to the truss of the vehicle body 1, wherein any fastening means known to those skilled in the art can be used for fastening, such as bolts, pins, etc., to limit the self-movement of the rack 25; In order to improve the automation degree of the irrigation device, similar to the movable pipe 22, the racks 25 of the multiple irrigation mechanisms 2 can also be connected to the same telescopic driving member; A branch pipe 231 that matches and can dock with the structure of the base pipe 21 is fixedly connected to the nozzle 23. The gear 24 connected to the nozzle 23 is fixedly connected to the branch pipe 231. The gear 24 is rotatably connected to the outside through a pin shaft, which can be on the truss of the vehicle body 1 or on the base pipe 21.

[0050] When the base pipe 21 and the movable pipe 22 are both connected to the external water supply pipe, the base pipe 21 and the movable pipe 22 are provided with a water pipe and a valve independently connected to the water supply pipe, so that the connection state of the base pipe 21 and the movable pipe 22 can be controlled separately and independently; When the base pipe 21 is connected to the water supply pipe only, when the movable pipe 22 is extended underground for normal infiltration irrigation, a liquid inlet is provided at the part of the movable pipe 22 located inside the base pipe 21, and the base pipe 21 is connected to the movable pipe 22 based on the liquid inlet; When the movable pipe 22 is connected to the water supply pipe only, when the movable pipe 22 is retracted to the inside of the base pipe 21 for normal irrigation, the water seepage part on the movable pipe 22 is connected to the base pipe 21; The dynamic sealing connection between the base pipe 21 and the movable pipe 22 is mainly achieved by the sealing ring 224 arranged therebetween. It can be understood by those skilled in the art that the position of the sealing ring 224 is set according to the connection state between the base pipe 21 and the movable pipe 22. Preferably, the sealing ring 224 is arranged in three sections on the movable pipe 22. Figure 3 In the structural state shown, one sealing ring 224 is located at the upper end of the water seepage section 222, and the other two sealing rings 224 are distributed on the movable tube 22 at the position inside the base tube 21 when the movable tube 22 is fully extended, so that no matter what position the movable tube 22 is in, or what connection state the base tube 21, the movable tube 22 and the water supply pipe are in, a good dynamic sealing connection can be formed.

[0051] It should be noted that the present invention is a self-propelled point irrigation device. Through the irrigation mechanism 2, during the process of sprinkler irrigation, it is necessary to make the sprinkler head 23 and the base pipe 21 connected. By moving the rack 25, the rack 25 drives the gear 24 to rotate, and the gear 24 then drives the sprinkler head 23 to rotate, so that it is connected with the base pipe 21, and then water is passed, so that the irrigation water flows through the base pipe 21 and / or the movable pipe 22 to the sprinkler head 23 to spray out to realize sprinkler irrigation; If fixed-point infiltration irrigation is required, the rack 25 needs to be moved. The rack 25 acts on the gear 24 so that the gear 24 drives the sprinkler head 23 to rotate, causing the sprinkler head 23 to deviate to the point where it is not in the same axial direction as the base pipe 21 and the movable pipe 22 and the sprinkler head 23 does not affect the normal extension of the movable pipe 22, and then drives the movable pipe 22 to extend and insert into the soil, and water is passed to achieve infiltration irrigation.

[0052] It is worth mentioning that by moving the rack 25, the gear 24 drives the sprinkler 23 to disengage from the base pipe 21. In this state, the movable pipe 22 can be extended from the base pipe 21 to the ground for infiltration irrigation, so that the irrigation mechanism 2 can perform watering, sprinkler irrigation or infiltration irrigation according to the implementation needs, and the most suitable irrigation method can be selected according to different scenes and crop growth stages to improve irrigation efficiency and effect; Furthermore, when the irrigation mechanism 2 is used for irrigation such as watering or sprinkler irrigation, the water seepage portion on the movable tube 22 is located inside the base tube 21, thereby protecting the movable tube 22 and effectively avoiding wear and tear on the movable tube 22 caused by external factors in a non-seepage irrigation state, thereby extending the service life of the device.

[0053] Preferably, the movable tube 22 includes a water seepage section 222 as a water seepage portion, and a force applying section 223 is provided at one end of the movable tube 22 for irrigation, and the force applying section 223 is a conical structure; The water seepage section 222 is located at a position slightly above and below the force-bearing section 221. A plurality of holes 2221 are provided at the position of the water seepage section 222 on the force-bearing section 221. The plurality of holes 2221 are grouped in an axial annular array based on the force-bearing section 221 and in a path array, so as to ensure uniformity of water seepage. The force-applying section 223 and the water-seeping section 222 are integrally formed from a pipe body, or are fixedly connected after modular design.

[0054] [Example 2] Based on the above embodiment 1, considering that during the infiltration irrigation process, when the soil surface is hard, the movable pipe 22 is not easy to be directly inserted into the soil, in order to improve the applicability of the irrigation mechanism 2, this embodiment is proposed: Specifically, Figures 2~4As shown, an irrigation mechanism 2 for a self-propelled point-shaped irrigation device, the movable pipe 22 also includes a force-bearing section 221, and a spiral groove 2211 is provided at the position of the force-bearing section 221; the force-bearing section 221, the water seepage section 222, and the force-applying section 223 are integrally formed by a pipe body, or are fixedly connected to each other after modular design; A guide protrusion 212 is provided on the base tube 21 for cooperating with the spiral groove 2211. When the movable tube 22 moves relative to the base tube 21 based on the force-bearing section 221, it rotates based on the spiral groove 2211 and through the guide protrusion 212. The guide protrusion 212 is integrally formed by the base tube 21, or is fixed to the base tube 21 by a spherical object such as a steel ball, or can be a rotating part such as a roller.

[0055] It should be noted that the present invention is a self-propelled point irrigation device. Through the irrigation mechanism 2, during the fixed-point infiltration irrigation, the movable tube 22 is moved downward. When the movable tube 22 moves to the point where the end of the spiral groove 2211 on the movable tube 22 contacts the guide protrusion 212, the movable tube 22 is continuously moved downward. During the movement, the movable tube 22 is rotated based on the spiral groove 2211 opened thereon and is constrained by the guide protrusion 212. In this state, the movable tube 22 is continuously extended to act on the soil surface.

[0056] It is worth mentioning that, through the force-bearing section 221 opened on the movable tube 22, when the movable tube 22 continues to extend, the spiral groove 2211 on the force-bearing section 221 is constrained by the guide protrusion 212 on the base tube 21 to rotate, so that the movable tube 22 is extended into the soil by screwing in, which can effectively reduce the friction resistance of the soil to the movable tube 22, and improve the speed and efficiency of the base tube 21 extending into the soil.

[0057] As a preferred embodiment, a thread 2231 is provided on the movable tube 22 at the force applying section 223 ; the thread 2231 is raised relative to the surface of the force applying section 223 , and is used to apply force to the maximum extent and in a more stable manner during the infiltration and drilling process.

[0058] [Example 3] Based on any of the above embodiments, in order to reduce the number of connecting pipes, improve the integration of the irrigation mechanism 2, and reduce the floor space of the irrigation mechanism 2, this embodiment is proposed: Specifically, Figures 2 to 6 As shown, an irrigation mechanism 2 for a self-propelled point-shaped irrigation device is connected to an external water supply pipe only through a movable pipe 22.

[0059] It should be noted that the present invention is a self-propelled point irrigation device. Through the irrigation mechanism 2, in this embodiment, since the movable pipe 22 is located inside the base pipe 21, the base pipe 21 and the movable pipe 22 are sealed and connected by a sealing ring 224. When the irrigation mechanism 2 is in the sprinkler operation state, the position state of the movable pipe 22 is as follows: Figure 3 As shown, the hole 2221 at the seepage section 222 on the movable tube 22 is located inside the base tube 21, and the upper end of the seepage section 222 is sealed with the base tube 21 through a sealing ring 224; During the sprinkling irrigation process, the irrigation water flows out through the holes 2221 on the movable tube 22 to the inside of the base tube 21 , and then is sprayed out by the nozzle 23 through the base tube 21 to realize sprinkling irrigation.

[0060] [Example 4] Based on any of the above embodiments, considering that the movable tube 22 needs to be movable inside the base tube 21, in order to ensure that the movable tube 22 and the base tube 21 are normally connected and sealed, while maximizing the water flow rate of the base tube 21 or the movable tube 22, this embodiment is proposed: Specific, and Figures 2~5 As shown, an irrigation mechanism 2 for a self-propelled point irrigation device, when connected to a water supply pipe only through a movable pipe 22, a three-way valve 26 is provided at one end of the movable pipe 22 that is not an irrigation part and is connected thereto, one of the three-way valves 26 that is not connected to the movable pipe 22 is connected to a base pipe 21, and the other is connected to an external water supply pipe, and a water inlet hole 211 is provided on the base pipe 21; A rotating joint is provided between the three-way valve 26 and the movable tube 22, and the three-way valve 26 is rotatably connected to the movable tube 22 through the rotating joint; a hose 261 is provided between the base tube 21 and the three-way valve 26, and one of the three-way valve 26 connected to the base tube 21 is connected through the hose 261, and both ends of the hose 261 are fixedly connected to the base tube 21 and the three-way valve 26, respectively. The hose 261 is not limited in material, and mainly utilizes the deformable characteristics of the hose 261.

[0061] It should be noted that the present invention is a self-propelled point irrigation device, through the irrigation mechanism 2, in this embodiment, because the structural dimensions of the movable pipe 22 and the base pipe 21 are matched, when the seepage section 222 on the movable pipe 22 is located inside the base pipe 21, because the outer wall of the movable pipe 22 and the inner wall of the base pipe 21 are in maximum contact with each other, under the premise of not affecting the normal movement of the movable pipe 22, the smaller the gap between the base pipe 21 and the movable pipe 22, the greater the pressure of the irrigation water flowing out from the seepage section 222 on the movable pipe 22. Therefore, the possibility of irrigation water leakage from the sealing rings 224 at both ends of the seepage section 222 can be effectively avoided, thereby indirectly ensuring the sealing performance of the docking between the movable pipe 22 and the base pipe 21.

[0062] In order to ensure the normal sprinkler irrigation effect of the irrigation mechanism 2, it is necessary to ensure the normal circulation of irrigation water inside the base pipe 21. At this time, by changing the conduction state of the three-way valve 26, the irrigation water flows into the inside of the base pipe 21 through the water inlet hole 211 through the hose 261, and then is sprayed out through the nozzle 23 to achieve normal sprinkler irrigation effect.

[0063] [Example 5] Based on the above fourth embodiment, in order to reduce the operation process of the three-way valve 26 and make the irrigation mechanism 2 more automated as a whole, this embodiment is proposed: Specifically, Figure 6 As shown, an irrigation mechanism 2 for a self-propelled point-shaped watering device, the valve stem on the three-way valve 26 is also connected to a gear 24, and is located in the same vertical direction as the gear 24 connected to the nozzle 23, the rack 25 meshing with the gear 24 on the nozzle 23 extends to the three-way valve 26 and meshes with the gear 24 attached thereto; the gear 24 connected to the three-way valve 26 is fixedly connected to the valve stem thereon.

[0064] It should be noted that the present invention is a self-propelled point irrigation device. Through the irrigation mechanism 2, in this embodiment, the gears 24 respectively connected to the sprinkler 23 and the three-way valve 26 are synchronously controlled by the same rack 25. In the sprinkler irrigation state of the irrigation mechanism 2, the movable pipe 22 is retracted to the inside of the base pipe 21 based on the seepage section 222 thereon. In this state, the three-way valve 26 is connected to the hose 261 and the external water supply pipe. In the process of changing the operating state of the irrigation mechanism 2, the rack 25 is moved downward, and the rack 25 drives the two gears 24 to rotate during the downward movement. The valve stem on the three-way valve 26 rotates through the gear 24 attached thereto, so that the connection object of the three-way valve 26 is converted to the movable pipe 22 and the external water supply pipe, and the gear 24 on the sprinkler 23 rotates so that the sprinkler 23 does not block the movement of the movable pipe 22.

[0065] As a preferred embodiment, the gear 24 is provided with a limiting groove 241, and a limiting section 252 is provided on the rack 25 at a position corresponding to the limiting groove 241, and the limiting section 252 matches the structure of the limiting groove 241; When the rack 25 drives the gear 24 to rotate so that the base tube 21 can be normally extended, during the continuous movement of the rack 25, the limiting section 252 on the rack 25 meshes with the limiting groove 241 on the gear 24, thereby ensuring that after the gear 24 rotates to completely change the state of the corresponding nozzle 23 or three-way valve 26, the continuous movement of the rack 25 will no longer change the state of the gear 24. This fault-tolerant design can make up for the defect that the rotation stroke of the valve stem on the three-way valve 26 is inconsistent with the stroke that the nozzle 23 should flip, thereby reducing the design strength.

[0066] [Example 6] Based on any of the above embodiments, considering that the water seepage section 222 on the movable pipe 22 extends into the soil during the infiltration irrigation process, soil may adhere to the water seepage section 222. If the hole 2221 is blocked, the next batch of infiltration irrigation may be affected. Therefore, this embodiment is proposed: Specifically, Figure 7 As shown, an irrigation mechanism 2 for a self-propelled point-shaped watering device is provided with a cleaning pipe 27 on the nozzle 23. The cleaning pipe 27 matches the structure of the movable pipe 22. When the nozzle 23 is turned over by the cooperation of the rack 25 and the gear 24 so that the movable pipe 22 can be normally extended, the cleaning pipe 27 is on the same axial direction of the base pipe 21. A cleaning member 271 is fixedly connected to the interior of the cleaning tube 27 . The cleaning member 271 is made of a flexible material such as a sponge or a brush.

[0067] It should be noted that the present invention is a self-propelled point irrigation device. Through the irrigation mechanism 2, during the infiltration irrigation process, when the infiltration irrigation of the current row of plants is completed and the infiltration irrigation of the next row of plants is carried out, the movable tube 22 is pulled out from the soil. During the resetting of the movable tube 22, it passes through the cleaning tube 27, and the connectivity state of the three-way valve 26 is not changed at this time, so that the irrigation water still flows to the movable tube 22 and flows out from the infiltration section 222. During the resetting and vertical retraction of the movable tube 22, the movable tube 22 also rotates based on the force-bearing section 221 thereon in cooperation with the guide protrusion 212 on the base tube 21. In this operating state, the movable tube 22 rotates relative to the inner wall of the cleaning tube 27, and the outer wall is cleaned under the action of the irrigation water.

[0068] As a preferred embodiment, the flip angle of the nozzle 23 is 90°, and the cleaning tube 27 is vertically installed relative to the axial direction of the nozzle 23 based on its axial direction, so that the angle of the rotation stroke of the nozzle 23 is standardized into a scalar, which is beneficial to reduce the design strength.

[0069] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A self-propelled point irrigation device, comprising a vehicle body (1), on which a plurality of irrigation mechanisms (2) are arranged, characterized in that: The irrigation mechanism (2) comprises a base pipe (21), a movable pipe (22) that is movable relative to the base pipe (21), and the movable pipe (22) is dynamically sealed to the base pipe (21). The movable pipe (22) is used to extend into the ground for infiltration irrigation. A nozzle (23) is provided at one end of the base pipe (21) used for irrigation. The nozzle (23) and the base pipe (21) are structurally compatible and can be docked. A gear (24) is fixedly connected to the nozzle (23). A rack (25) is meshed with the gear (24) and is used to change the docking state of the nozzle (23) and the base pipe (21). The base pipe (21) and / or the movable pipe (22) are connected to an external water supply pipe.

2. A self-propelled point watering device according to claim 1, characterized in that: When the base pipe (21) and the movable pipe (22) are both connected to an external water supply pipe, the base pipe (21) and the movable pipe (22) are attached with a water pipe and a valve independently connected to the water supply pipe, so that the connection state of the base pipe (21) and the movable pipe (22) can be controlled separately and independently; When the base pipe (21) is connected to the water supply pipe only, when the movable pipe (22) is extended underground for normal infiltration irrigation, a liquid inlet is provided at a location of the movable pipe (22) located inside the base pipe (21), and at this time, the base pipe (21) is connected to the movable pipe (22) based on the liquid inlet; When the movable pipe (22) is connected to the water supply pipe only, when the movable pipe (22) is retracted into the base pipe (21) for normal irrigation, the water seepage portion on the movable pipe (22) is connected to the base pipe (21).

3. A self-propelled point watering device according to claim 1 or 2, characterized in that: The movable tube (22) comprises a water seepage section (222) as a water seepage portion, and a force applying section (223) is provided at one end of the movable tube (22) used for irrigation, and the force applying section (223) is a conical structure.

4. A self-propelled point watering device according to claim 3, characterized in that: The movable tube (22) further comprises a force-bearing section (221), and a spiral groove (2211) is provided at the position of the force-bearing section (221); A guide protrusion (212) is provided on the base tube (21) for cooperating with the spiral groove (2211); when the movable tube (22) moves relative to the base tube (21) based on the force-bearing section (221), it rotates based on the spiral groove (2211) and through the guide protrusion (212).

5. A self-propelled point watering device according to claim 3, characterized in that: A thread (2231) is provided on the force-applying section (223) of the movable tube (22).

6. A self-propelled point watering device according to claim 1 or 2, characterized in that: When the movable pipe (22) is connected to the water supply pipe only, a three-way valve (26) is provided at one end of the movable pipe (22) at the non-irrigation portion and is connected thereto, one of the three-way valves (26) not connected to the movable pipe (22) is connected to the base pipe (21), and the other is connected to the external water supply pipe, and a water inlet hole (211) is provided on the base pipe (21).

7. A self-propelled point watering device according to claim 6, characterized in that: The valve stem on the three-way valve (26) is also connected to a gear (24) and is located in the same vertical direction as the gear (24) connected to the nozzle (23). The rack (25) meshing with the gear (24) on the nozzle (23) extends to the three-way valve (26) and meshes with the gear (24) attached thereto.

8. The self-propelled point watering device according to claim 1, characterized in that: The gear (24) is provided with a limiting groove (241), and a limiting section (252) is provided on the rack (25) at a position corresponding to the limiting groove (241), and the structure of the limiting section (252) matches that of the limiting groove (241).

9. A self-propelled point watering device according to claim 1 or 2, characterized in that: A cleaning tube (27) is also provided on the nozzle (23). The cleaning tube (27) matches the structure of the movable tube (22). When the nozzle (23) is turned over by the cooperation of the rack (25) and the gear (24) so ​​that the movable tube (22) can be normally extended, the cleaning tube (27) is on the same axial direction as the base tube (21).

10. A self-propelled point watering device according to claim 9, characterized in that: The tilting angle of the spray head (23) is 90°, and the cleaning tube (27) is vertically erected based on its axial direction relative to the axial direction of the spray head (23).

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