A sprinkling irrigation device for alfalfa planting with height convenient to adjust

Abstract

This utility model relates to the field of sprinkler irrigation technology. Specifically, it is a sprinkler irrigation device for alfalfa planting with adjustable height, including a fixed shell. A support leg is rotatably connected to the outer side of the fixed shell, and a water inlet pipe is fixedly connected to the inner side of the fixed shell. A sliding tube is slidably connected to the outer side of the water inlet pipe, and a spray assembly is rotatably connected to the top of the sliding tube. The device uses a limiting pin to determine the height of the spray assembly. Then, the threaded sleeve is reversed. At this time, the bottom of the threaded sleeve and the outer side of the limiting pin press against each other, causing the tension spring to be stretched. Simultaneously, the limiting pin inserts into the limiting groove, thereby locking the position of the sliding tube through the limiting strip, thus determining the height of the spray assembly to adapt to the needs of different alfalfa growth stages. By setting a guide fan and a baffle, the rotating shell can rotate along the top of the sliding tube under the support of bearings under the impact of water flow, expanding the spraying range.

Description

Technical Field

[0001] This utility model relates to the field of sprinkler irrigation technology, specifically to a sprinkler irrigation device for alfalfa planting that is easy to adjust in height. Background Technology

[0002] In the alfalfa planting industry, sprinkler irrigation technology is one of the core technologies to ensure the healthy growth of alfalfa and increase yield.

[0003] In existing technologies, such as the Chinese patent CN215012278U, a detachable underground pole-mounted sprinkler irrigation device for alfalfa in sandy areas is disclosed. This device features a tee connector installed on the main water pipe at the lower end of the pole-mounted water pipe, and a water valve switch at the upper end. A sprinkler gun is located above the water valve switch. The pole-mounted water pipe is divided into an upper and lower section; the lower section is buried underground and connected to the tee connector, while the upper section is connected to the water valve switch. With this type of pole-mounted water pipe, the upper section can be disassembled when harvesting alfalfa, facilitating harvesting without replacing underground pipes. This solves the technical problem of irrigation in existing alfalfa planting bases, reduces the cost of planting alfalfa in desert areas, and compared with existing sprinkler irrigation devices, this invention has advantages such as reasonable design, simple structure, easy disassembly, simple maintenance, and low production cost. It can be used in deserts and areas with scarce water resources.

[0004] Although the above technical solutions have the above technical advantages, their disadvantages are as follows: alfalfa is a perennial herbaceous plant, and its growth cycle covers multiple stages such as seedling stage and mature plant stage. During the complete growth cycle of alfalfa, its plant height will change significantly with the growth stage. If the height of the sprinkler irrigation device is not adjustable, the water flow will be easily blocked by the plant leaves, resulting in uneven irrigation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sprinkler irrigation device for alfalfa planting that is easy to adjust in height, thus solving the problem that the water flow from the sprinkler irrigation device is easily blocked by the plant leaves, leading to uneven irrigation.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a sprinkler irrigation device for alfalfa planting with adjustable height, comprising a fixed shell, a support leg rotatably connected to the outer side of the fixed shell, a water inlet pipe fixedly connected to the inner side of the fixed shell, a sliding pipe slidably connected to the outer side of the water inlet pipe, a sprinkler assembly rotatably connected to the top of the sliding pipe, and further comprising: a threaded sleeve threadedly connected to the top of the fixed shell, limit strips fixedly connected to both sides of the sliding pipe, limit pins slidably connected to both sides of the fixed shell, a tension spring fixedly connected to the inner side of the limit pin, and rotating the threaded sleeve to make it move upward relative to the fixed shell, at which time the bottom of the threaded sleeve disengages from the limit pin;

[0007] The spray assembly includes a rotating shell, a baffle plate is fixedly connected to the inner side of the rotating shell, a guide fan is fixedly connected to the bottom of the baffle plate, a bearing is rotatably connected to the outer side of the rotating shell, and curved pipes are fixedly connected around the rotating shell. The water flow impacts the guide fan, giving it the tendency to rotate. When the water flow passes over the baffle plate, the rotating shell can rotate along the top of the sliding pipe under the support of the bearing due to the impact of the water flow. Finally, the sprayed water flow can expand the spraying range under the action of centrifugal force.

[0008] Preferably, the outer wall of the sliding tube is slidably connected to the inner wall of the fixed shell, and the inner wall of the fixed shell is slidably connected to the side wall of the limiting strip. When the tension spring resets and drives the limiting pin to disengage from the limiting groove on the limiting strip, the position of the sliding tube can be adjusted at will.

[0009] Preferably, the bottom of the threaded sleeve slides into contact with the outer wall of the limiting pin, and the end of the tension spring away from the limiting pin is fixedly connected to the inner wall of the fixed shell. When the threaded sleeve is reset, the bottom of the threaded sleeve and the outer side of the limiting pin press against each other, causing the tension spring to be stretched.

[0010] Preferably, the outer wall of the limiting pin is inserted into the inner wall of the limiting strip through a limiting groove, and the limiting groove is opened in the wall of the limiting strip. When the limiting pin is inserted into the limiting groove, the position of the sliding tube can be locked by the limiting strip.

[0011] Preferably, the bottom of the rotating shell is rotatably connected to the top of the sliding tube, the outer side of the bearing is fixedly connected to the inner wall of the sliding tube, a protective shell is fixedly connected to the outer side of the bent tube, and a sliding sleeve is slidably connected to the inner wall of the protective shell. When water flows through the bent tube into the protective shell, as the water pressure inside the protective shell increases, the sliding sleeve overcomes the elastic force of the compression spring and slides out of the protective shell. At this time, the water can be sprayed out from the nozzles opened on the side wall of the sliding sleeve.

[0012] Preferably, a compression spring is fixedly connected to the outer wall of the sliding sleeve, and the end of the compression spring away from the sliding sleeve is fixedly connected to the inner wall of the protective shell. A rotating block is rotatably connected to the outer side of the protective shell, and a flow-breaking plate is fixedly connected to the outer side of the rotating block. When the water flow impacts the flow-breaking plate, the rotating block rotates with the water flow pressure. During the rotation, the flow-breaking plate will continuously change the contact angle and position with the water flow, avoiding local irrigation overlap or omission caused by the water flow always spraying at a single angle, and making the water distribution in the spraying area more uniform.

[0013] The beneficial effects of this utility model are as follows:

[0014] (i) The device determines the height of the spraying component by setting a limit pin, and then reverses the threaded sleeve. At this time, the bottom of the threaded sleeve and the outer side of the limit pin are pressed against each other, so that the tension spring is stretched. At the same time, the limit pin is inserted into the limit groove, so that the position of the sliding tube can be locked by the limit strip, thereby determining the height of the spraying component to adapt to the needs of different growth stages of alfalfa.

[0015] (II) By setting up a guide fan and a baffle, the device can make the rotating shell rotate along the top of the sliding tube under the support of the bearing under the impact of the water flow, thereby expanding the spraying range. When the water pressure inside the protective shell increases, the sliding sleeve overcomes the elastic force of the compression spring and slides out of the protective shell. At this time, the water flow can be sprayed out from the spray hole opened on the side wall of the sliding sleeve. The sprayed water flow will impact the baffle, causing the rotating block to rotate with the water flow pressure, thereby changing its contact angle and position with the water flow. This avoids local irrigation overlap or omission caused by the water flow always spraying at a single angle, and makes the water distribution in the spraying area more uniform.

[0016] (III) By setting up a sliding sleeve, when the irrigation is finished, the compression spring 68 drives the sliding sleeve 67 to return to its original position. At this time, the spray hole opened on the side wall of the sliding sleeve 67 can be blocked by the protective shell 66 to prevent impurities from entering the interior of the sliding sleeve 67 through the spray hole, causing impurities to accumulate and block the spray hole, thereby ensuring that the water flow can be smoothly sprayed out during the next irrigation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0020] Figure 4 This is a schematic diagram of the structure of the spray assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the protective shell of this utility model.

[0022] In the diagram: 1. Fixed shell; 2. Support leg; 3. Water inlet pipe; 4. Sliding pipe; 5. Limiting strip; 6. Spray assembly; 7. Threaded sleeve; 8. Limiting pin; 9. Tension spring; 10. Limiting groove; 61. Rotating shell; 62. Bearing; 63. Baffle plate; 64. Guide fan; 65. Bend; 66. Protective shell; 67. Sliding sleeve; 68. Compression spring; 69. Rotating block; 60. Flow breaker. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-5 This utility model provides a technical solution: a sprinkler irrigation device for alfalfa planting with adjustable height, including a fixed shell 1, a support leg 2 rotatably connected to the outer side of the fixed shell 1, a water inlet pipe 3 fixedly connected to the inner side of the fixed shell 1, a sliding pipe 4 slidably connected to the outer side of the water inlet pipe 3, and a sprinkler assembly 6 rotatably connected to the top of the sliding pipe 4. It also includes: a threaded sleeve 7 threadedly connected to the top of the fixed shell 1; limit strips 5 fixedly connected to both sides of the sliding pipe 4; limit pins 8 slidably connected to both sides of the fixed shell 1; and a tension spring 9 fixedly connected to the inner side of the limit pins 8. The outer wall of the sliding pipe 4 is slidably connected to the inner wall of the fixed shell 1, the inner wall of the fixed shell 1 is slidably connected to the side wall of the limit strips 5, the bottom of the threaded sleeve 7 is slidably in contact with the outer wall of the limit pins 8, the end of the tension spring 9 away from the limit pins 8 is fixedly connected to the inner wall of the fixed shell 1, and the outer wall of the limit pins 8 is connected to the inner wall of the limit strips 5 through a limit groove 10. The device is plugged in, and the limiting groove 10 is opened in the wall of the limiting strip 5. The support leg 2 is inserted into the soil to fix the position of the fixed shell 1. Then the bottom of the water inlet pipe 3 is connected to the water pipe. When it is necessary to adjust the overall height of the device, first rotate the threaded sleeve 7 so that it moves upward relative to the fixed shell 1. At this time, the bottom of the threaded sleeve 7 is disengaged from the limiting pin 8. The tension spring 9 gradually returns to its original position and drives the limiting pin 8 to disengage from the limiting groove 10 on the limiting strip 5. At this time, the position of the sliding tube 4 can be adjusted at will, thereby changing the height of the spray assembly 6. After the height of the spray assembly 6 is determined, the threaded sleeve 7 is returned to its original position. At this time, the bottom of the threaded sleeve 7 and the outer side of the limiting pin 8 are pressed against each other, so that the tension spring 9 is stretched. At the same time, the limiting pin 8 is inserted into the limiting groove 10. Thus, the position of the sliding tube 4 can be locked by the limiting strip 5, thereby determining the height of the spray assembly 6 to adapt to the needs of different growth stages of alfalfa.

[0025] The spray assembly 6 includes a rotating shell 61, a baffle 63 is fixedly connected to the inner side of the rotating shell 61, a guide fan 64 is fixedly connected to the bottom of the baffle 63, a bearing 62 is rotatably connected to the outer side of the rotating shell 61, and a bent pipe 65 is fixedly connected around the rotating shell 61. The bottom of the rotating shell 61 is rotatably connected to the top of the sliding tube 4. The outer side of the bearing 62 is fixedly connected to the inner wall of the sliding tube 4. A protective shell 66 is fixedly connected to the outer side of the bent tube 65. A sliding sleeve 67 is slidably connected to the inner wall of the protective shell 66. A compression spring 68 is fixedly connected to the outer wall of the sliding sleeve 67. The end of the compression spring 68 away from the sliding sleeve 67 is fixedly connected to the inner wall of the protective shell 66. A rotating block 69 is rotatably connected to the outer side of the protective shell 66. A flow-breaking plate 60 is fixedly connected to the outer side of the rotating block 69. When water is supplied to the water pipe, the water flows from the inlet pipe 3 into the sliding tube 4 from bottom to top, and then enters the spray assembly 6 through the sliding tube 4. During this process, the water flow impacts the guide fan 64, giving it the tendency to rotate the rotating shell 61. When the water flow passes the baffle 63, the rotating shell 61 can rotate along the top of the sliding tube 4 under the support of the bearing 62. When the water flow passes through the bent tube 65... As the water pressure inside the protective shell 66 increases, the sliding sleeve 67 overcomes the elastic force of the compression spring 68 and slides out of the protective shell 66. At this time, the water can be sprayed out from the nozzles opened on the side wall of the sliding sleeve 67. The sprayed water will impact the flow-breaking plate 60, causing the rotating block 69 to rotate with the water pressure. During the rotation, the flow-breaking plate 60 will continuously change the contact angle and position with the water flow, avoiding local irrigation overlap or omission caused by the water flow always spraying at a single angle, making the water distribution in the spraying area more uniform. At the same time, with the rotation of the rotating shell 61 and the bend 65, the sprayed water can also expand the spraying range under the action of centrifugal force. When the irrigation is finished, the compression spring 68 drives the sliding sleeve 67 to return to its original position. At this time, the nozzles opened on the side wall of the sliding sleeve 67 can be blocked by the protective shell 66, preventing impurities from entering the interior of the sliding sleeve 67 through the nozzles, causing impurities to accumulate and block the nozzles, thus ensuring that the water flow can be sprayed out smoothly during the next irrigation.

[0026] Working principle: When in use, insert the support leg 2 into the soil to fix the position of the fixed shell 1. Then connect the bottom of the water inlet pipe 3 to the water pipe. When it is necessary to adjust the overall height of the device, first rotate the threaded sleeve 7 to make it move upward relative to the fixed shell 1. At this time, the bottom of the threaded sleeve 7 disengages from the limit pin 8, the tension spring 9 gradually resets and drives the limit pin 8 to disengage from the limit groove 10 on the limit strip 5. At this time, the position of the sliding pipe 4 can be adjusted at will, thereby changing the height of the spray assembly 6.

[0027] After determining the height of the spray assembly 6, the threaded sleeve 7 is reset. At this time, the bottom of the threaded sleeve 7 and the outer side of the limiting pin 8 are pressed against each other, so that the tension spring 9 is stretched. At the same time, the limiting pin 8 is inserted into the limiting groove 10. Thus, the position of the sliding tube 4 can be locked by the limiting strip 5, thereby determining the height of the spray assembly 6 so as to adapt to the needs of different growth stages of alfalfa.

[0028] When water is supplied to the water pipe, the water flows from bottom to top into the sliding pipe 4 through the inlet pipe 3, and then enters the spray assembly 6 through the sliding pipe 4. During this process, the water flow impacts the guide fan 64, giving it the tendency to rotate the rotating shell 61. When the water flows past the baffle 63, the rotating shell 61 rotates along the top of the sliding pipe 4 under the support of the bearing 62 due to the impact of the water flow. When the water flows into the protective shell 66 through the bend 65, as the water pressure inside the protective shell 66 increases, the sliding sleeve 67 overcomes the spring force of the compression spring 68. The force slides outward from the protective shell 66, at which point the water can be sprayed out from the nozzles opened on the side wall of the sliding sleeve 67. The sprayed water will impact the flow-breaking plate 60, causing the rotating block 69 to rotate with the water pressure. During the rotation, the flow-breaking plate 60 will continuously change the contact angle and position with the water flow, avoiding local irrigation overlap or omission caused by the water flow always spraying at a single angle, making the water distribution in the spraying area more uniform. At the same time, as the rotating shell 61 and the bend 65 rotate, the sprayed water flow can also expand the spraying range under the action of centrifugal force.

[0029] After the irrigation is finished, the compression spring 68 drives the sliding sleeve 67 to return to its original position. At this time, the spray hole opened on the side wall of the sliding sleeve 67 can be blocked by the protective shell 66 to prevent impurities from entering the interior of the sliding sleeve 67 through the spray hole, causing impurities to accumulate and block the spray hole, thereby ensuring that the water can be sprayed out smoothly during the next irrigation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A height-adjustable sprinkler irrigation device for alfalfa planting, comprising a fixed shell (1), a support leg (2) rotatably connected to the outer side of the fixed shell (1), a water inlet pipe (3) fixedly connected to the inner side of the fixed shell (1), a sliding pipe (4) slidably connected to the outer side of the water inlet pipe (3), and a sprinkler assembly (6) rotatably connected to the top of the sliding pipe (4), characterized in that, Also includes: The top of the fixed shell (1) is threaded with a threaded sleeve (7), the two sides of the sliding tube (4) are fixedly connected with limit strips (5), the two sides of the fixed shell (1) are slidably connected with limit pins (8), and the inner side of the limit pins (8) is fixedly connected with a tension spring (9). The spray assembly (6) includes a rotating shell (61), a baffle (63) is fixedly connected to the inner side of the rotating shell (61), a guide fan (64) is fixedly connected to the bottom of the baffle (63), a bearing (62) is rotatably connected to the outer side of the rotating shell (61), and a bent pipe (65) is fixedly connected around the rotating shell (61).

2. The sprinkler irrigation device for alfalfa planting with easily adjustable height according to claim 1, characterized in that: The outer wall of the sliding tube (4) is slidably connected to the inner wall of the fixed shell (1), and the inner wall of the fixed shell (1) is slidably connected to the side wall of the limiting strip (5).

3. The sprinkler irrigation device for alfalfa planting with adjustable height according to claim 1, characterized in that: The bottom of the threaded sleeve (7) slides in contact with the outer wall of the limiting pin (8), and the end of the tension spring (9) away from the limiting pin (8) is fixedly connected to the inner wall of the fixed shell (1).

4. The sprinkler irrigation device for alfalfa planting with easily adjustable height according to claim 1, characterized in that: The outer wall of the limiting pin (8) is inserted into the inner wall of the limiting strip (5) through the limiting groove (10), and the limiting groove (10) is opened in the wall of the limiting strip (5).

5. A sprinkler irrigation device for alfalfa planting with adjustable height according to claim 1, characterized in that: The bottom of the rotating shell (61) is rotatably connected to the top of the sliding tube (4), the outer side of the bearing (62) is fixedly connected to the inner wall of the sliding tube (4), the outer side of the bent tube (65) is fixedly connected to a protective shell (66), and the inner wall of the protective shell (66) is slidably connected to a sliding sleeve (67).

6. A sprinkler irrigation device for alfalfa planting with adjustable height according to claim 5, characterized in that: A compression spring (68) is fixedly connected to the outer wall of the sliding sleeve (67). The end of the compression spring (68) away from the sliding sleeve (67) is fixedly connected to the inner wall of the protective shell (66). A rotating block (69) is rotatably connected to the outer side of the protective shell (66). A flow-breaking plate (60) is fixedly connected to the outer side of the rotating block (69).

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