Valve for agricultural water delivery pipeline

Abstract

The valve comprises an outer sleeve, a flow control mechanism is arranged in the outer sleeve, the flow control mechanism comprises an adjusting sleeve, a linkage sleeve, a center rod, a supporting frame, a transmission sleeve, a push sleeve and a spiral plate, the adjusting sleeve is rotationally installed at the top end of the outer sleeve, the linkage sleeve is fixed to the inner side of the adjusting sleeve, and the center rod is fixed to the center rod. The center rod is fixed to the inner side of the linkage sleeve, the flow control mechanism achieves accurate adjustment of the water flow speed through a series of precise structural design, the adjusting sleeve rotates to drive the linkage sleeve to rotate so as to drive the center rod to rotate, the center rod pushes the transmission sleeve to slide along the center rod, and the spiral plate is pushed through the push sleeve. The flow space of water flow is adjusted through the change of gaps of the spiral plates, and the structure has the advantages that the water flow speed can be flexibly adjusted according to different requirements, the utilization efficiency of water resources is improved, excessive or insufficient irrigation is avoided, it is ensured that crops obtain balanced water supply, and therefore the agricultural irrigation effect and productivity are improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation technology, and more specifically, it relates to a valve for agricultural water supply pipelines. Background Technology

[0002] In agricultural irrigation systems, the regulation of water flow velocity and flow rate is crucial, especially in the irrigation of large areas of farmland. How to accurately control the distribution and velocity of water flow becomes the key to improving water resource utilization efficiency. Traditional valve designs often lack effective regulation functions, resulting in the inability to accurately control the flow rate during use. This not only increases the risk of water waste, but may also affect crop growth and yield.

[0003] Meanwhile, existing valve equipment is mostly a single-switch design, and its adjustment process is usually not flexible and precise enough. It cannot adjust the flow rate or volume in real time according to actual needs. Especially when facing different soil types and crop requirements, insufficient or excessive water supply will have an adverse effect on crop growth. In this case, agricultural irrigation efficiency is low, resulting in unnecessary waste of water resources. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a valve for agricultural water supply pipelines to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A valve for agricultural water supply pipelines, comprising an outer sleeve, within which a flow control mechanism is provided. The flow control mechanism includes an adjusting sleeve, a linkage sleeve, a central rod, a support frame, a transmission sleeve, a push sleeve, and a spiral plate. The adjusting sleeve is rotatably mounted on the top of the outer sleeve, the linkage sleeve is fixed inside the adjusting sleeve, the central rod is fixed inside the linkage sleeve, the support frame is fixed at the bottom of the outer sleeve and rotatably connected to the central rod, the transmission sleeve slides on the outer wall of the central rod and is threadedly connected to the inner wall of the outer sleeve, the push sleeve is fixed on the top surface of the transmission sleeve and slidably connected to the central rod, the top of the spiral plate is fixed to the inner wall of the outer sleeve and the bottom is rotatably connected to the push sleeve, and a limiting mechanism is provided on the outer side of the outer sleeve. The limiting mechanism includes an mounting sleeve, a limiting block, a limiting groove, a limiting sleeve, and a limiting mechanism. The mounting sleeve is fixed to the bottom surface of the adjusting sleeve, multiple sets of limiting blocks slide on the outer wall of the mounting sleeve, multiple sets of limiting grooves are distributed on the outer wall of the outer sleeve, and the limiting sleeve slides on the outer side of the outer sleeve and its inner side abuts against the top of multiple sets of limiting blocks.

[0008] The present invention is further configured such that the limiting mechanism includes a connecting sleeve, a support rod, a limiting block, a limiting sleeve, a limiting groove, and a clearance groove. The connecting sleeve is fixed to the bottom surface of the limiting sleeve. Multiple sets of support rods are distributed on the bottom surface of the connecting sleeve. The limiting block is fixed to the bottom end of multiple sets of support rods. The limiting sleeve rotates on the outer wall of the outer sleeve. Multiple sets of limiting grooves are distributed on the limiting sleeve. The clearance groove is located at one end of the multiple sets of limiting grooves.

[0009] The present invention is further configured such that the central rod is polygonal and slidably connected to the transmission sleeve and the push sleeve respectively. By designing the central rod as a polygon and making it slidably connected to the transmission sleeve and the push sleeve, the stability and transmission efficiency between the central rod and other components can be effectively improved, and offset or jamming during the sliding process can be prevented, thereby ensuring smoother and more precise water flow regulation.

[0010] The present invention is further configured such that the spiral plate is an elastic plate. Using an elastic plate as the spiral plate material provides better flexibility during water flow regulation. When the water flow rate is adjusted, the elasticity of the spiral plate can adapt to different water pressure and flow rate changes, ensuring the flexibility and long-term durability of the spiral plate, and improving the overall valve's adjustment accuracy.

[0011] This invention is further configured such that a return spring is connected between the inner side of each of the multiple sets of limiting blocks and the outer wall of the mounting sleeve. The design of the return spring ensures that the limiting blocks automatically return to their original position during adjustment, preventing the limiting blocks from shifting or failing due to external forces, thereby maintaining the valve's precise limiting function, ensuring the recovery and stability of the limiting blocks after each adjustment, and improving the reliability and safety of the equipment.

[0012] The present invention is further configured such that a tension spring is connected to the top surface of the limiting sleeve, and a thrust bearing is connected between the top end of the tension spring and the connecting sleeve. The cooperation between the tension spring and the thrust bearing enables the limiting sleeve to stably withstand axial force during adjustment and provide effective tensile force, ensuring smooth movement of the limiting sleeve when it is released from its limit, avoiding unnecessary friction or jamming, and improving the flexibility and accuracy of operation.

[0013] This invention is further characterized in that the tops of the multiple sets of limiting blocks and the inner walls of the limiting sleeves are all provided with rounded corners. The rounded corner design of the tops of the limiting blocks and the inner walls of the limiting sleeves can reduce friction and wear, improve the smoothness of contact between the limiting blocks and the limiting sleeves, prevent jamming or damage caused by excessively sharp angles, thereby extending the service life of the components and improving the overall durability and stability of the valve.

[0014] The present invention is further configured such that each of the multiple sets of limiting grooves is an arc-shaped groove and is slidably connected to multiple sets of support rods. The sliding connection between the arc-shaped grooves and the support rods allows the limiting sleeve to move more smoothly, reduces frictional resistance, ensures smooth movement of the limiting sleeve during adjustment, prevents jamming, and improves adjustment accuracy and operational smoothness.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a valve for agricultural water supply pipelines, which has the following beneficial effects:

[0017] 1. The flow control mechanism achieves precise regulation of water flow rate through a series of sophisticated structural designs. The rotation of the regulating sleeve drives the rotation of the linkage sleeve, which in turn drives the rotation of the central rod. The central rod pushes the transmission sleeve to slide along it, and pushes the spiral plate through the push sleeve. The change in the gap of the spiral plate adjusts the flow space of the water. The advantage of this structure is that it can flexibly adjust the water flow rate according to different needs, improve the efficiency of water resource utilization, avoid excessive or insufficient irrigation, ensure that crops receive a balanced water supply, and thus improve the effect and productivity of agricultural irrigation.

[0018] 2. The limiting mechanism, through the cooperation between the limiting sleeve and the limiting block, can accurately position the adjusting sleeve during the adjustment process. The limiting block slides on the outer wall of the mounting sleeve and cooperates with the limiting groove on the inner wall of the outer sleeve, ensuring that the adjusting sleeve can rotate and adjust the water flow rate within a reasonable range. This avoids water flow instability caused by improper operation during the adjustment process. This limiting structure provides positioning accuracy for the adjusting sleeve, avoids unnecessary misoperation, further improves the reliability and stability of the equipment, and ensures stable flow control during valve adjustment.

[0019] 3. The design of the limiting mechanism allows the entire valve system to be easily locked and unlocked during use, ensuring the safety and stability of the equipment when not in use. Through the sliding connection between the limiting sleeve and the support rod and the limiting groove, and the cooperation between the limiting block and the limiting sleeve, the movement of the limiting block can be effectively controlled. The restoring force generated by the tension spring allows the entire mechanism to slide smoothly when the limit is released. This structure ensures that when the adjustment limit needs to be released, the limiting sleeve can smoothly release its contact with the limiting block, providing greater flexibility and operability, reducing inconvenience during operation, and making the equipment more efficient and convenient in use and maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a valve for agricultural water supply pipelines according to this utility model;

[0021] Figure 2 This is a cross-sectional view of the flow control mechanism in this utility model.

[0022] Figure 3 This is a schematic diagram of the spiral plate in this utility model;

[0023] Figure 4 This is a cross-sectional view of the limiting mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the limiting block in this utility model.

[0025] In the diagram: 1. Outer sleeve; 2. Adjusting sleeve; 3. Linkage sleeve; 4. Center rod; 5. Support frame; 6. Transmission sleeve; 7. Push sleeve; 8. Spiral plate; 9. Mounting sleeve; 10. Limiting block; 11. Limiting groove; 12. Limiting sleeve; 13. Connecting sleeve; 14. Support rod; 15. Restricting block; 16. Restricting sleeve; 17. Restricting groove; 18. Relief groove; 19. Return spring; 20. Tension spring; 21. Thrust bearing. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A valve for agricultural water supply pipelines includes an outer sleeve 1, within which a flow control mechanism is installed. The flow control mechanism includes an adjusting sleeve 2, a linkage sleeve 3, a central rod 4, a support frame 5, a transmission sleeve 6, a push sleeve 7, and a spiral plate 8. The adjusting sleeve 2 is rotatably mounted on the top of the outer sleeve 1. The linkage sleeve 3 is fixed inside the adjusting sleeve 2. The central rod 4 is fixed inside the linkage sleeve 3. The support frame 5 is fixed to the bottom of the outer sleeve 1 and rotatably connected to the central rod 4. The transmission sleeve 6 slides on the outer wall of the central rod 4 and is threadedly connected to the inner wall of the outer sleeve 1. The push sleeve 7 is fixed to the transmission sleeve 1. The top surface of the movable sleeve 6 is slidably connected to the center rod 4. The top end of the spiral plate 8 is fixed to the inner wall of the outer sleeve 1 and the bottom end is rotatably connected to the push sleeve 7. A limiting mechanism is provided on the outer side of the outer sleeve 1. The limiting mechanism includes an installation sleeve 9, a limiting block 10, a limiting groove 11, a limiting sleeve 12 and a limiting mechanism. The installation sleeve 9 is fixed to the bottom surface of the adjusting sleeve 2. The limiting block 10 is provided with multiple sets that slide on the outer wall of the installation sleeve 9. The limiting groove 11 is provided with multiple sets that are distributed on the outer wall of the outer sleeve 1. The limiting sleeve 12 slides on the outer side of the outer sleeve 1 and its inner side abuts against the top of multiple sets of limiting blocks 10.

[0030] The limiting mechanism includes a connecting sleeve 13, a support rod 14, a limiting block 15, a limiting sleeve 16, a limiting groove 17, and a clearance groove 18. The connecting sleeve 13 is fixed to the bottom surface of the limiting sleeve 12. Multiple sets of support rods 14 are distributed on the bottom surface of the connecting sleeve 13. The limiting block 15 is fixed to the bottom end of the multiple sets of support rods 14. The limiting sleeve 16 rotates on the outer wall of the outer sleeve 1. Multiple sets of limiting grooves 17 are distributed on the limiting sleeve 16. The clearance groove 18 is located at one end of the multiple sets of limiting grooves 17.

[0031] The center rod 4 is polygonal and slidably connected to both the transmission sleeve 6 and the push sleeve 7. By designing the center rod 4 as a polygon, the contact stability between it and the transmission sleeve 6 and the push sleeve 7 can be enhanced, avoiding offset or uneven friction during sliding, thereby ensuring the accuracy and stability of the transmission process.

[0032] The spiral plate 8 is configured as an elastic plate. As an elastic plate, the spiral plate 8 can adaptively adjust to different flow rate changes when regulating water flow, providing flexible response capability, reducing the damage of external water flow pressure to the spiral plate, thereby improving regulation accuracy and long-term stability of the equipment.

[0033] Each of the multiple sets of limit blocks 10 has a return spring 19 connected between its inner side and the outer wall of the mounting sleeve 9. The return spring 19 ensures that the limit blocks 10 automatically return to their initial position during adjustment, guaranteeing the precise positioning function of the limit blocks 10 and preventing the limit blocks 10 from failing or shifting due to external forces, thereby ensuring the reliability of valve adjustment.

[0034] A tension spring 20 is connected to the top surface of the limiting sleeve 16, and a thrust bearing 21 is connected between the top of the tension spring 20 and the connecting sleeve 13. The design of the tension spring 20 and the thrust bearing 21 ensures that the limiting sleeve 16 can smoothly withstand axial force during adjustment and can move smoothly when the limit is released, avoiding excessive friction or jamming, thereby improving operating accuracy and the smoothness of fluid control.

[0035] The tops of multiple limit blocks 10 and the inner walls of limit sleeves 12 are all rounded. The rounded corner design of the tops of limit blocks 10 and the inner walls of limit sleeves 12 effectively reduces friction and wear between the contact surfaces, making the fit between limit blocks 10 and limit sleeves 12 smoother, avoiding jamming caused by excessively sharp angles, and improving the durability and operational stability of the system.

[0036] Multiple sets of limiting grooves 17 are all configured as arc-shaped grooves and are slidably connected to multiple sets of support rods 14. The sliding connection between the arc-shaped grooves 17 and the support rods 14 allows the limiting sleeve to move more smoothly, reduces the resistance caused by friction, ensures smoother movement of the limiting sleeve during adjustment, and improves the overall adjustment efficiency and accuracy of the valve.

[0037] In this embodiment, when the water flow rate needs to be adjusted, rotating the adjusting sleeve 2 drives the linkage sleeve 3 to rotate, the linkage sleeve 3 drives the central rod 4 to rotate, and the central rod 4 drives the transmission sleeve 6 to rotate so that its outer wall is threadedly engaged with the inner wall of the outer sleeve 1. This causes the transmission sleeve 6 to slide along the central rod 4 and push the push sleeve 7, which in turn slides along the central rod 4 and pushes the bottom end of the spiral plate 8 to squeeze it, thereby changing the gap between the spiral plates 8 and thus changing the flow space of the water flow, thereby adjusting the water flow rate. Then, the limiting sleeve 12 is pushed so that its inner side abuts against the top of the multiple sets of limiting blocks 10 and stretches the tension spring 20, causing the multiple sets of limiting blocks 10 to squeeze the reset spring 19 and its bottom end to engage in the limiting groove 11 to limit the adjusting sleeve 2. At this time, the multiple sets of limiting blocks 15 are in the relief groove 18. Then, rotating the limiting sleeve 16 causes the multiple sets of support rods 14 to slide in the limiting groove 17. At this time, the multiple sets of limiting blocks 15 abut against both sides of the limiting sleeve 16, completing the locking of the limiting sleeve 12.

[0038] More specifically, when it is necessary to release the limiting position of the adjusting sleeve 2, the limiting sleeve 16 is rotated so that multiple sets of support rods 14 slide along the limiting groove 11 into the relief groove 18. At this time, multiple sets of limiting blocks 15 release their contact with both sides of the limiting sleeve 16. The tension spring 20 pulls the connecting sleeve 13 and the limiting sleeve 12 to slide, so that the limiting sleeve 12 releases its contact with the top of the multiple sets of limiting blocks 10. The multiple sets of reset springs 19 push the limiting blocks 10 to slide outward and make their bottom ends disengage from the limiting groove 11, thereby releasing the limiting position of the adjusting sleeve 2.

[0039] In summary, during the use or operation of the overall equipment: when it is necessary to adjust the water flow rate, rotating the adjusting sleeve 2 drives the linkage sleeve 3 to rotate, the linkage sleeve 3 drives the central rod 4 to rotate, and the central rod 4 drives the transmission sleeve 6 to rotate so that its outer wall is threadedly engaged with the inner wall of the outer sleeve 1. This causes the transmission sleeve 6 to slide along the central rod 4 and push the push sleeve 7, which in turn slides along the central rod 4 and pushes the bottom end of the spiral plate 8 to squeeze it, thereby changing the gap between the spiral plates 8 and thus changing the flow space of the water flow, thereby adjusting the water flow rate. Subsequently, the limiting sleeve 12 is pushed so that its inner side abuts against the top of the multiple sets of limiting blocks 10 and stretches the tension spring 20, causing the multiple sets of limiting blocks 10 to squeeze the reset spring 19 and engage its bottom end in the limiting groove 11 to limit the adjusting sleeve 2. At this time, the multiple sets of limiting blocks 15 are in the relief groove 18. Then, rotating the limiting sleeve 16 causes the multiple sets of support rods 14 to slide in the limiting groove 17. At this time, the multiple sets of limiting blocks 15 abut against both sides of the limiting sleeve 16, completing the locking of the limiting sleeve 12.

[0040] When it is necessary to release the limiting position of the adjusting sleeve 2, rotate the limiting sleeve 16 so that multiple sets of support rods 14 slide along the limiting groove 11 into the relief groove 18. At this time, multiple sets of limiting blocks 15 release their contact with both sides of the limiting sleeve 16. The tension spring 20 pulls the connecting sleeve 13 and the limiting sleeve 12 to slide, so that the limiting sleeve 12 releases its contact with the top of the multiple sets of limiting blocks 10. Multiple sets of reset springs 19 push the limiting blocks 10 to slide outward and make their bottom ends disengage from the limiting groove 11, thereby releasing the limiting position of the adjusting sleeve 2.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve for agricultural water delivery pipes comprising an outer sleeve (1), characterised in that: The external sleeve (1) is provided with a flow control mechanism, the flow control mechanism comprises an adjusting sleeve (2), a linkage sleeve (3), a center rod (4), a support frame (5), a transmission sleeve (6), a push sleeve (7) and a spiral plate (8), the adjusting sleeve (2) is rotatably installed at the top end of the external sleeve (1), the linkage sleeve (3) is fixed inside the adjusting sleeve (2), the center rod (4) is fixed inside the linkage sleeve (3), the support frame (5) is fixed at the bottom end of the external sleeve (1) and is rotatably connected with the center rod (4), the transmission sleeve (6) is slidably arranged on the outer wall of the center rod (4) and is threadedly connected with the inner wall of the external sleeve (1), the push sleeve (7) is fixed on the top surface of the transmission sleeve (6) and is slidably connected with the center rod (4), the spiral plate (8) is fixed at the top end of the inner wall of the external sleeve (1) and is rotatably connected with the push sleeve (7) at the bottom end, the outer side of the external sleeve (1) is provided with a limiting mechanism, the limiting mechanism comprises a mounting sleeve (9), a limiting block (10), a limiting groove (11), a limiting sleeve (12) and a limiting mechanism, the mounting sleeve (9) is fixed on the bottom surface of the adjusting sleeve (2), the limiting block (10) is provided with a plurality of groups of sliding blocks on the outer wall of the mounting sleeve (9), the limiting groove (11) is provided with a plurality of groups of limiting grooves distributed on the outer wall of the external sleeve (1), and the limiting sleeve (12) is slidably arranged on the outer side of the external sleeve (1) and abuts against the top end of the plurality of limiting blocks (10) on the inner side.

2. A valve for agricultural water delivery pipes according to claim 1, characterized in that: The limiting mechanism comprises a connecting sleeve (13), a support rod (14), a limiting block (15), a limiting sleeve (16), a limiting groove (17) and a giving-up groove (18), the connecting sleeve (13) is fixed on the bottom surface of the limiting sleeve (12), the support rod (14) is provided with a plurality of groups of support rods distributed on the bottom surface of the connecting sleeve (13), the limiting block (15) is fixed on the bottom end of the plurality of support rods (14), the limiting sleeve (16) is rotatably arranged on the outer wall of the external sleeve (1), the limiting groove (17) is provided with a plurality of groups of limiting grooves distributed on the limiting sleeve (16), and the giving-up groove (18) is arranged at one end of the plurality of limiting grooves (17).

3. A valve for agricultural water delivery pipes according to claim 2, characterized in that: The center rod (4) is provided as a polygon and is slidably connected with the transmission sleeve (6) and the push sleeve (7) respectively.

4. A valve for agricultural water delivery pipes according to claim 3, characterized in that: The spiral plate (8) is provided as an elastic plate.

5. A valve for agricultural water delivery lines as defined in claim 4, characterized in that the plurality of groups The inner side of the limiting block (10) and the outer wall of the mounting sleeve (9) are both connected with a return spring (19).

6. A valve for agricultural water delivery pipes according to claim 5, characterized in that: The top surface of the limiting sleeve (16) is connected with a tension spring (20), and the top end of the tension spring (20) and the connecting sleeve (13) are connected with a thrust bearing (21).

7. A valve for agricultural water delivery pipes according to claim 6, characterized in that the groups The top end of the limiting block (10) and the inner wall of the limiting sleeve (12) are both provided with a round corner.

8. A valve for agricultural water delivery pipes according to claim 7, characterized in that the groups The limiting groove (17) is provided as an arc-shaped groove and is slidably connected with the plurality of support rods (14) respectively.

Images