Quick-connection electric butterfly valve for agricultural irrigation

Abstract

This utility model provides a quick-connect electric butterfly valve suitable for agricultural irrigation, belonging to the field of butterfly valve technology. It includes a valve body manufactured from PVC material using a one-piece molding process. A flow channel is coaxially arranged within the valve body cavity, and a stainless steel valve stem is rotatably mounted within the flow channel. A rubber-lined disc is radially connected to the stainless steel valve stem, and the maximum rotation angle of the rubber-lined disc is 0°–90°. Several reinforcing ribs are evenly distributed along the axial direction on the outer circumferential surface of the valve body to enhance the radial stress of the valve body. Connecting sleeves extend from both ends of the valve body to facilitate insertion and assembly with external pipes. The advantages of this utility model are that the valve body is made of PVC material and bonded to the external pipe with PVC-specific adhesive, achieving efficient installation and lightweight construction. Simultaneously, through reasonable structural design and component selection, the performance and stability of the valve are guaranteed, meeting various needs of agricultural irrigation systems.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a quick-connect electric butterfly valve suitable for agricultural irrigation. Background Technology

[0002] As a compact fluid control device, the butterfly valve's core opening and closing component is a disc-shaped butterfly plate that rotates around the valve shaft. It achieves the cutoff and throttling of the pipeline medium through angular displacement. This type of valve, with its advantages of low opening and closing torque and low flow resistance coefficient, is widely used in water supply and drainage, energy transmission, and chemical industries. It is suitable for media including liquids, gases, and even two-phase flow systems, and operates in both conventional conditions and corrosive environments.

[0003] At the existing technology level, for example, the "Intelligent Butterfly Valve for Regulating Medium Throttling and Filtration" disclosed in Chinese invention patent CN119914686A achieves multi-functional improvement by integrating a detachable filter structure axially into the butterfly plate. Specifically, this solution adopts a threaded connection filter frame and butterfly plate composite design, combined with a dynamic insertion mechanism for the sealing column, which expands the online filtration capability while retaining the traditional butterfly valve flow regulation function. In addition, flanges are provided at both ends of the butterfly valve body for connection to external pipelines.

[0004] While this design addresses the technical challenge of intercepting media impurities, its structural design, based on current practices and the aforementioned published patents, still follows the traditional metal butterfly valve body and flange connection paradigm. This results in a bulky overall structure, hindering handling and installation. Furthermore, the flange interface relies on circumferential multi-bolt fastening for sealing, requiring precise hole alignment and graded pre-tightening during assembly, making installation time-consuming and cumbersome. In short, these technical shortcomings severely restrict the butterfly valve's competitiveness in lightweight engineering, rapid deployment scenarios, and extreme environment applications, necessitating breakthrough improvements through material system innovation and connection structure optimization. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a quick-connect electric butterfly valve suitable for agricultural irrigation. The valve body is made of PVC material and is bonded to the external pipeline with PVC special adhesive, achieving the advantages of efficient installation and light weight.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A quick-connect electric butterfly valve for agricultural irrigation includes a valve body manufactured from PVC material using an integral molding process. A flow channel is coaxially arranged within the valve body cavity, and a stainless steel valve stem is rotatably mounted within the flow channel. A rubber-lined disc is radially connected to the stainless steel valve stem, and the maximum rotation angle of the rubber-lined disc is 0°-90°. Several reinforcing ribs are evenly distributed along the axial direction on the outer circumferential surface of the valve body to enhance its radial stress resistance. Connecting sleeves extend from both ends of the valve body to facilitate insertion and assembly with external pipelines.

[0008] Furthermore, the lower, middle and top parts of the valve body cavity are respectively fitted with a first phosphor bronze sealing sleeve, a second phosphor bronze sealing sleeve and a third phosphor bronze sealing sleeve; the distance between the first phosphor bronze sealing sleeve and the lower edge of the rubber-lined disc is 2-5mm, and the distance between the second phosphor bronze sealing sleeve and the upper edge of the rubber-lined disc is 1-3mm.

[0009] Furthermore, the wall thickness of the first phosphor bronze sealing sleeve, the second phosphor bronze sealing sleeve, and the third phosphor bronze sealing sleeve is 0.5-1.2mm, and the inner surface is provided with a spiral lubrication groove.

[0010] Furthermore, the valve body is provided with a support platform at the top, and the support platform is provided with an array of mounting holes; the upper end face of the third phosphor bronze sealing sleeve is 2-4mm lower than the upper surface of the support platform; two sets of reinforcing ribs are symmetrically arranged below the support platform, the reinforcing ribs form an angle of 50°-60° with the support platform, and the reinforcing ribs form hand-held grooves.

[0011] Furthermore, the valve stem has an axial threaded hole in the middle, and the rubber-lined disc has a countersunk mounting hole at the corresponding position, and torque transmission is achieved through a stainless steel fastening screw; when the butterfly valve is in the closed state, the central axis of the stainless steel fastening screw coincides with the central axis of the flow channel.

[0012] Furthermore, an electric actuator is fixed on the support platform. The electric actuator includes a micro motor, a meshing worm and a worm wheel, a gear coaxially connected to the worm, a motor connected to the gear through a gear set, and the worm wheel connected to the output rod. A quick-connect socket is formed below the output rod, and the quick-connect socket forms a clearance fit with the upper end of the valve stem.

[0013] Furthermore, it also includes a handle, the end of which is provided with a manual interface, and the handle is movably inserted into the handle socket.

[0014] Furthermore, a dust cover is provided at the manual interface.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The valve body is made of PVC material and is bonded to external pipelines using special PVC adhesive, achieving advantages such as efficient installation and light weight. At the same time, through reasonable structural design and component selection, the valve's performance and stability are guaranteed, enabling it to meet various needs of agricultural irrigation systems. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is the overall diagram of the quick-connect electric butterfly valve;

[0019] Figure 2 This is an exploded diagram of a quick-connect electric butterfly valve;

[0020] Figure 3 This is a schematic diagram of the internal structure of an electric actuator. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the internal structure of an electric actuator. Figure 2 ;

[0022] Figure 5 This is a 3D view of the valve body;

[0023] Figure 6 This is a side view of the valve body;

[0024] Figure 7 This is a mid-section view of the valve body.

[0025] In the picture:

[0026] 1. Valve body; 101. Reinforcing rib; 2. Stainless steel valve stem; 3. Rubber-lined disc; 4. First phosphor bronze sealing sleeve; 5. Second phosphor bronze sealing sleeve; 6. Third phosphor bronze sealing sleeve; 7. Support platform; 701. Reinforcing rib; 702. Handheld groove; 8. Stainless steel fastening screw; 9. Electric actuator; 901. Micro motor; 902. Worm gear; 9021. Manual interface; 903. Worm wheel; 904. Gear; 905. Output rod; 9051. Quick-connect socket; 10. Handle; 12. Dust cover. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] like Figures 1 to 7As shown, this utility model claims protection for a quick-connect electric butterfly valve suitable for agricultural irrigation, wherein the core component, the valve body 1, is made of PVC (polyvinyl chloride) material and manufactured through a one-piece molding process. PVC material has the significant advantage of being lightweight, greatly reducing the overall weight of the valve compared to a traditional metal valve body 1, making it easier to handle and install. At the same time, PVC material has good corrosion resistance, enabling it to adapt to various complex water quality environments in agricultural irrigation and extending the valve's service life.

[0029] The one-piece molding manufacturing process ensures the structural integrity and stability of the valve body 1, avoiding leakage risks that may arise from welding or assembly processes. A flow channel is coaxially arranged within the valve body 1, providing a smooth path for irrigation water flow. A stainless steel valve stem 2 is rotatably mounted within the flow channel. Stainless steel possesses excellent corrosion resistance and strength, ensuring that the valve stem will not rust or deform during long-term use, thus guaranteeing the normal operation of the valve.

[0030] A stainless steel valve stem 2 is radially connected to a rubber-lined disc 3, which has a maximum rotation angle of 0°-90°. By controlling the rotation angle of the rubber-lined disc 3, the flow rate of the flow channel can be precisely adjusted to meet the needs of different agricultural irrigation scenarios. The rubber layer of the rubber-lined disc 3 is resistant to corrosion from acids, alkalis, inorganic salts, and various organic substances. In pipeline systems of industries such as chemical and power, the transported media may be highly corrosive, such as pipelines in chemical reactors and storage tanks. The rubber-lined disc 3 can effectively protect the disc substrate from the erosion of these corrosive media, thereby extending the disc's service life. Rubber is elastic and can better fit with the valve body 1, thus improving the disc's sealing performance. When the valve is closed, it can effectively prevent media leakage, ensuring the safe and stable operation of the equipment, especially suitable for occasions with high sealing requirements. Therefore, the design of the rubber-lined disc 3 enables the valve to achieve a good sealing effect when closed, preventing irrigation water leakage.

[0031] When installing the rubber-lined disc 3, an axial threaded hole is provided in the middle of the valve stem, and a countersunk mounting hole is provided at the corresponding position on the rubber-lined disc 3. Torque transmission is achieved through the stainless steel fastening screw 8. When the butterfly valve is in the closed state, the central axis of the stainless steel fastening screw 8 coincides with the central axis of the flow channel. This design not only ensures the stability and accuracy of the rubber-lined disc 3 during rotation, but also facilitates the insertion of tools into the flow channel to tighten or loosen the stainless steel fastening screw 8.

[0032] Several reinforcing ribs 101 are evenly distributed along the axial direction on the outer circumferential surface of the valve body 1. The function of these reinforcing ribs 101 is to enhance the radial force-bearing capacity of the valve body 1. In agricultural irrigation systems, valves may be subjected to various forces such as water flow pressure and external impact. The setting of the reinforcing ribs 101 effectively improves the strength and stability of the valve body 1 and prevents the valve body 1 from deforming under stress.

[0033] The valve body 1 has connecting sleeves extending from both ends, designed for easy insertion and assembly with external pipes. During installation, simply apply PVC-specific adhesive to the connecting sleeves, then insert them into the external pipes for secure bonding, similar to common water pipe connections, making the process convenient. This installation method is simple and efficient, significantly reducing installation time. Simultaneously, the PVC-specific adhesive ensures a tight seal and secure connection, preventing irrigation water leakage.

[0034] The lower, middle, and top parts of the valve body 1 are respectively fitted with a first phosphor bronze sealing sleeve 4, a second phosphor bronze sealing sleeve 5, and a third phosphor bronze sealing sleeve 6. These phosphor bronze sealing sleeves have good wear resistance and self-lubricating properties, which can reduce the friction between the valve stem and the valve body 1 and extend the service life of the valve. The distance between the first phosphor bronze sealing sleeve 4 and the lower edge of the rubber-lined disc 3 is 2-5 mm, and the distance between the second phosphor bronze sealing sleeve 5 and the upper edge of the rubber-lined disc 3 is 1-3 mm. This spacing ensures that the rubber-lined disc 3 can rotate freely while effectively preventing irrigation water from leaking between the sealing sleeves and the rubber-lined disc 3.

[0035] The first phosphor bronze sealing sleeve 4, the second phosphor bronze sealing sleeve 5, and the third phosphor bronze sealing sleeve 6 have a wall thickness of 0.5-1.2 mm, and their inner surfaces are provided with spiral lubrication grooves. The spiral lubrication groove design further improves the self-lubricating performance of the sealing sleeves, reduces the friction of the valve stem during rotation, and makes the valve operation smoother.

[0036] The valve body 1 has a support platform 7 on top, which has an array of mounting holes for fixing the electric actuator 9. The design of the support platform 7 provides a stable mounting base for the electric actuator 9. The upper surface of the third phosphor bronze sealing sleeve 6 is 2-4mm lower than the upper surface of the support platform 7. This design avoids interference between the electric actuator 9 and the third phosphor bronze sealing sleeve 6, ensuring the normal operation of the valve.

[0037] Two sets of reinforcing ribs 701 are symmetrically arranged below the support platform 7, forming an angle of 50°-60° with the support platform 7. The reinforcing ribs 701 have hand-held grooves 702. The reinforcing ribs 701 further enhance the strength and stability of the support platform 7, and the hand-held grooves 702 facilitate hand operation by operators when installing and maintaining valves.

[0038] An electric actuator 9 is fixed on the support platform 7. The electric actuator 9 includes a micro motor 901, a meshing worm gear 902 and worm wheel 903, with a gear 904 coaxially connected to the worm gear 902. The motor is connected to the gear 904 via a set of gears 904. The worm wheel 903 is connected to the output rod 905. A quick-connect socket 9051 is formed below the output rod 905, and it has a clearance fit with the upper end of the valve stem. The working principle of the electric actuator 9 is as follows: the micro motor 901 drives the gear 904 and worm gear 902 to rotate via the gear set 904; the worm gear 902 drives the worm wheel 903 to rotate; the worm wheel 903 drives the output rod 905 to rotate; and the output rod 905 drives the valve stem to rotate via the quick-connect socket 9051, thereby rotating the rubber-lined disc 3 and controlling the flow rate of the flow channel. This design of the electric actuator 9 has the advantages of compact structure and high control precision, and can meet the needs of agricultural irrigation systems for automated valve control.

[0039] To ensure normal valve operation in case of malfunction of the electric actuator 9 or the need for manual operation, this quick-connect electric butterfly valve also includes a handle 10. A manual interface 9021 is provided at the end of the worm gear 902, and the handle 10 is movably inserted into the manual interface 9021. When manual operation of the valve is required, the operator simply inserts the handle 10 into the manual interface 9021 and then rotates the handle 10, which in turn drives the valve stem to rotate via the worm gear 902, thereby rotating the rubber-lined disc 3.

[0040] In addition, a dust cover 12 is provided at the manual interface 9021. The function of the dust cover 12 is to prevent dust, debris, etc. from entering the manual interface 9021 and affecting the normal operation of manual operation. When manual operation is not required, the dust cover 12 can be closed to protect the manual interface 9021 from dirt and damage.

[0041] In summary, this quick-connect electric butterfly valve for agricultural irrigation achieves high installation efficiency and lightweight by using PVC material for the valve body 1 and bonding it to external pipelines with PVC-specific adhesive. Furthermore, through reasonable structural design and component selection, the valve's performance and stability are guaranteed, enabling it to meet various needs of agricultural irrigation systems.

[0042] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect electric butterfly valve suitable for agricultural irrigation, characterized in that: The valve body is made of PVC material using a one-piece molding process. A flow channel is coaxially arranged in the inner cavity of the valve body. A stainless steel valve stem is rotatably arranged in the flow channel. A rubber-lined disc is radially connected to the stainless steel valve stem. The maximum rotation angle of the rubber-lined disc is 0°-90°. Several reinforcing ribs are evenly distributed along the axial direction on the outer circumferential surface of the valve body to enhance the radial force of the valve body. Connecting sleeves extend from both ends of the valve body to facilitate insertion and assembly with external pipes.

2. The quick connect motorized butterfly valve suitable for agricultural irrigation as claimed in claim 1 wherein: The lower, middle and top parts of the valve body are respectively fitted with a first phosphor bronze sealing sleeve, a second phosphor bronze sealing sleeve and a third phosphor bronze sealing sleeve; the distance between the first phosphor bronze sealing sleeve and the lower edge of the rubber-lined disc is 2-5mm, and the distance between the second phosphor bronze sealing sleeve and the upper edge of the rubber-lined disc is 1-3mm.

3. The quick connect motorized butterfly valve suitable for agricultural irrigation as claimed in claim 2 wherein: The first phosphor bronze sealing sleeve, the second phosphor bronze sealing sleeve and the third phosphor bronze sealing sleeve have a wall thickness of 0.5-1.2mm, and their inner surfaces are provided with spiral lubrication grooves.

4. The quick connect motorized butterfly valve suitable for agricultural irrigation as claimed in claim 2 wherein: The valve body is provided with a support platform at the top, and the support platform is provided with an array of mounting holes; the upper end face of the third phosphor bronze sealing sleeve is 2-4mm lower than the upper surface of the support platform; two sets of reinforcing ribs are symmetrically arranged below the support platform, the reinforcing ribs form an angle of 50°-60° with the support platform, and the reinforcing ribs form hand-held grooves.

5. The quick connect motorized butterfly valve suitable for agricultural irrigation as claimed in claim 4 wherein: The valve stem has an axial threaded hole in the middle, and the rubber-lined disc has a countersunk mounting hole at the corresponding position. Torque transmission is achieved through stainless steel fastening screws. When the butterfly valve is in the closed state, the central axis of the stainless steel fastening screw coincides with the central axis of the flow channel.

6. The quick connect motorized butterfly valve suitable for agricultural irrigation according to claim 4 or 5, characterized in that: An electric actuator is fixed on the support platform. The electric actuator includes a micro motor, a meshing worm and a worm wheel. A gear is coaxially connected to the worm. The motor is connected to the gear through a gear set. The worm wheel is connected to the output rod. A quick-connect socket is formed below the output rod. The quick-connect socket forms a clearance fit with the upper end of the valve stem.

7. The quick-connect electric butterfly valve for agricultural irrigation according to claim 6, characterized in that: It also includes a handle, and the end of the worm gear is provided with a manual interface, and the handle is movably inserted into the handle socket.

8. The quick connect motorized butterfly valve suitable for agricultural irrigation as claimed in claim 7 wherein: A dust cover is provided at the manual interface.

Images