Improved proportional valve structure

Abstract

The utility model relates to the technical field of valve bodies, and discloses an improved proportional valve structure which comprises a valve body structure, a sealing structure and an installation structure are installed on the valve body structure, the valve body structure comprises a shell, the sealing structure comprises a rotating shaft, a bottom block, a sealing plate, a sealing ring and a worm, the rotating shaft is installed in the shell through the bottom block, and the worm is installed in the shell through the sealing plate. The rotating shaft is provided with the sealing ring through the sealing plate, the worm gear is fixedly installed at the top end of the rotating shaft, the worm is rotatably installed on the side wall of the shell, the worm and the worm gear are meshed with each other, and the first rotating disc is fixedly installed at one end of the worm. And the worm wheel drives the sealing plate and the sealing ring to rotate through the rotating shaft, so that the sealing plate and the sealing ring seal the interior of the shell, liquid is effectively prevented from entering the interior of the shell, leakage is prevented, the liquid is effectively isolated, and the impact pressure of the liquid on the valve element is reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve body technology, and in particular to an improved proportional valve structure. Background Technology

[0002] An improved proportional valve is a control device that enhances the performance of a traditional proportional valve by optimizing electromagnetic drive technology, electronic control system, materials, and sealing technology. Compared to traditional proportional valves, improved proportional valves offer significant improvements in response speed, control accuracy, stability, and service life. Employing advanced electronic control and fluid dynamics optimization design, the valve can more precisely regulate flow, pressure, or speed and is better suited to complex industrial application environments, thus meeting the demands of modern automated control systems for high efficiency and precision control.

[0003] The applicant discovered through a search that a Chinese patent discloses "A Bidirectional Control Electromagnetic Proportional Valve," with publication (announcement) number "CN221569042U." This patent mainly involves making the limiting block fit against the external connecting pipe, thereby achieving connection to the external connecting pipe. This method replaces the original connection method, making the connection between the bidirectional control electromagnetic proportional valve and the external connecting pipe more convenient. However, when the valve core in this device is closed, the liquid directly impacts the valve core surface, which will cause a large frictional force between the valve core and the valve body, accelerating the wear of the valve core, reducing the service life of the valve, and may generate uneven force on the movement of the valve core, resulting in inaccurate positioning of the valve core and excessive pressure on the valve core over a long period of time. Therefore, we propose an improved proportional valve structure. Utility Model Content

[0004] The purpose of this utility model is to provide an improved proportional valve structure to solve the problems mentioned in the background art, such as the direct impact of liquid on the valve core surface, which leads to large friction between the valve core and the valve body, accelerates the wear of the valve core, reduces the service life of the valve, may generate uneven force on the movement of the valve core, resulting in inaccurate positioning of the valve core, and excessive pressure on the valve core over a long period of time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved proportional valve structure, including a valve body structure, on which a sealing structure and an installation structure are mounted. The valve body structure includes a housing, and the sealing structure includes a rotating shaft, a bottom block, a sealing plate, a sealing ring, and a worm gear. The rotating shaft is mounted inside the housing via the bottom block, and the sealing ring is mounted on the rotating shaft via the sealing plate. A worm wheel is fixedly mounted at the top of the rotating shaft, and the worm gear is rotatably mounted on the side wall of the housing. The worm gear and the worm wheel mesh with each other, and a first rotating disk is fixedly mounted at one end of the worm gear.

[0006] As a preferred embodiment, the valve body structure includes a partition plate, a valve core, and a first screw. The partition plate is fixedly installed inside the housing, the valve core is disposed inside the valve body structure, the first screw is threadedly installed on the top wall of the housing, the bottom end of the first screw is rotatably connected to the valve core through a bearing, and a handwheel is fixedly installed at the end of the first screw away from the valve core.

[0007] As a preferred embodiment, the base block is fixedly installed on the outer bottom wall of the housing, the rotating shaft is rotatably installed inside the housing, and one end of the rotating shaft extends into the base block, while the other end of the rotating shaft passes through the housing and extends to the top of the housing. The rotating shaft is rotatably connected to both the housing and the base block, and the sealing plate is fixedly installed on the rotating shaft.

[0008] As a preferred embodiment, a sealing box is fixedly installed on the outer wall of the housing, the rotating shaft extends into the interior of the sealing box, the worm gear is inside the sealing box, the worm extends through the sealing box to the other end of the sealing box, and the worm and the sealing box are rotatably connected.

[0009] As a preferred embodiment, the installation structure includes a connecting ring, a fixing frame, a second screw, a second turntable, and a connecting pipe. The connecting ring is fixedly installed at both ends of the outer shell. The fixing frame is fixedly installed on the outer wall of the outer shell. The second screw is threadedly installed on the fixing frame and threadedly connected to the side wall of the connecting ring. The second turntable is fixedly installed at one end of the second screw.

[0010] As a preferred embodiment, a flange is fixedly installed at one end of the connecting pipe, and a threaded hole is provided on the side wall of the flange, with the threaded hole and the second screw cooperating with each other.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the set sealing structure, the first turntable drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The worm wheel drives the sealing plate and sealing ring to rotate through the rotating shaft, so that the sealing plate and sealing ring seal the inside of the shell, effectively preventing liquid from entering the shell and preventing leakage. The liquid is effectively isolated, reducing the impact pressure of the liquid on the valve core, extending the service life of the valve core, reducing the damage of corrosive liquids to the valve core, improving the reliability and durability of the system, making the fluid flow more stable and controllable, ensuring precise adjustment of liquid flow, and adapting to different process requirements.

[0013] 2. In the installation structure, the second turntable drives the second screw to rotate. The second screw moves threadedly on the side wall of the fixing frame and the connecting ring, thereby extending the second screw into the threaded hole and installing the connecting pipe on the outer shell. This enhances the connection's firmness and prevents loosening during the connection process. The threaded connection structure makes the connection between the connecting pipe and the outer shell simpler, facilitating later maintenance, disassembly, or replacement. This design allows users to easily disassemble the connecting pipe for cleaning, inspection, or replacement when needed, reducing maintenance costs and time. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the valve body structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting pipe and flange of this utility model;

[0019] Figure 6 This is a schematic diagram of the installation structure of this utility model.

[0020] In the diagram: 1. Valve body structure; 11. Outer shell; 12. Partition plate; 13. Valve core; 14. First screw; 15. Handwheel; 2. Sealing structure; 21. Rotating shaft; 22. Base block; 23. Sealing plate; 24. Sealing ring; 25. Worm gear; 26. Worm; 27. First turntable; 28. Sealing box; 3. Mounting structure; 31. Connecting ring; 32. Fixing bracket; 33. Second screw; 34. Second turntable; 35. Connecting pipe; 36. Flange; 37. Threaded hole. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Please see the appendix Figure 1 - Appendix Figure 4An improved proportional valve structure includes a valve body structure 1, on which a sealing structure 2 and an mounting structure 3 are installed. The valve body structure 1 includes a housing 11, a partition plate 12, a valve core 13, and a first screw 14. The partition plate 12 is fixedly installed inside the housing 11, and the partition plate 12 is configured as two sets. The valve core 13 is disposed inside the valve body structure 1 and between the partition plates 12. The first screw 14 is threadedly installed on the top wall of the housing 11. The bottom end of the first screw 14 is rotatably connected to the valve core 13 through a bearing. A handwheel 15 is fixedly installed at the end of the first screw 14 away from the valve core 13.

[0024] The sealing structure 2 includes a rotating shaft 21, a base block 22, and a worm gear 26. The base block 22 is fixedly installed on the outer bottom wall of the housing 11. The rotating shaft 21 is rotatably installed inside the housing 11, with one end of the rotating shaft 21 extending into the base block 22 and the other end of the rotating shaft 21 passing through the housing 11 and extending to the top of the housing 11. The rotating shaft 21 is rotatably connected to both the housing 11 and the base block 22. A sealing plate 23 is fixedly installed on the rotating shaft 21. The sealing plate 23 is located inside the housing 11, and a sealing ring 24 is fixedly installed on the outer wall of the sealing plate 23. The sealing ring 24 and the inner wall of the housing 11 are connected. The housing 11 is sealed by the sealing plate 23 and the sealing ring 24. The outer wall of the housing 11 is fixedly installed with a sealing box 28. The rotating shaft 21 extends into the interior of the sealing box 28. The top of the rotating shaft 21 is fixedly installed with a worm gear 25. The worm gear 25 is inside the sealing box 28. The worm 26 is rotatably installed on the side wall of the housing 11. The worm 26 passes through the sealing box 28 and extends to the other end of the sealing box 28. The worm 26 and the sealing box 28 are rotatably connected. The worm 26 and the worm gear 25 mesh with each other. One end of the worm 26 is fixedly installed with a first turntable 27.

[0025] Specifically, in the sealing structure 2, the first turntable 27 drives the worm gear 26 to rotate, which in turn drives the worm wheel 25 to rotate. The worm wheel 25 drives the sealing plate 23 and the sealing ring 24 to rotate through the rotating shaft 21, so that the sealing plate 23 and the sealing ring 24 seal the inside of the outer casing 11, effectively preventing liquid from entering the inside of the outer casing 11, preventing leakage, and effectively isolating the liquid. This reduces the impact pressure of the liquid on the valve core 13, extends the service life of the valve core 13, reduces the damage of corrosive liquid to the valve core 13, improves the reliability and durability of the system, makes the fluid flow more stable and controllable, ensures the precise adjustment of the liquid flow rate, and adapts to different process requirements.

[0026] Example 2:

[0027] Please see the appendix Figure 2 , Figure 5 Appendix Figure 6Based on Embodiment 1, the installation structure 3 includes a connecting ring 31, a fixing frame 32, a second screw 33, a second turntable 34, and a connecting pipe 35. The connecting ring 31 is fixedly installed at both ends of the outer shell 11. The fixing frame 32 is fixedly installed on the outer wall of the outer shell 11. The second screw 33 is threadedly installed on the fixing frame 32. The second screw 33 is threadedly connected to the side wall of the connecting ring 31, which plays a role in adjustment and transmission. The second turntable 34 is fixedly installed at one end of the second screw 33. The second turntable 34 controls the up and down movement of the second screw 33 by rotation. The flange 36 is fixedly installed at one end of the connecting pipe 35. The side wall of the flange 36 is provided with a threaded hole 37. The threaded hole 37 and the second screw 33 cooperate with each other to ensure a stable connection between the flange 36 and the second screw 33, prevent loosening under high pressure or high speed operation, and improve the safety and durability of the overall system.

[0028] Specifically, in the installation structure 3, the second turntable 34 drives the second screw 33 to rotate. The second screw 33 moves threadedly on the side wall of the fixing frame 32 and the connecting ring 31, thereby extending the second screw 33 into the threaded hole 37, thus installing the connecting pipe 35 on the outer shell 11. This enhances the connection's firmness and prevents loosening problems that may occur during the connection process. The threaded connection structure makes the connection between the connecting pipe 35 and the outer shell 11 simpler, facilitating later maintenance, disassembly, or replacement. This design allows users to easily disassemble the connecting pipe 35 for cleaning, inspection, or replacement when needed, reducing maintenance costs and time.

[0029] Working principle of this utility model: This utility model is an improved proportional valve structure. The connecting pipe 35 and flange 36 are inserted into the connecting ring body 31, and the threaded hole 37 and the second screw 33 are aligned with each other. The second turntable 34 is rotated, which drives the second screw 33 to rotate. The second screw 33 moves threadedly on the side wall of the fixing frame 32 and the connecting ring body 31, thereby allowing the second screw 33 to extend into the threaded hole 37. The connecting pipe 35 is installed on the outer shell 11 through the threaded connection between the second screw 33 and the threaded hole 37. Liquid is introduced into the connecting pipe 35 on one side. The handwheel 15 is rotated, and the handwheel 15 moves threadedly in the outer shell 11, thereby driving the valve core 13 to move. The movement of the valve core 13 connects the two sides inside the outer shell 11, allowing the liquid to flow through. The liquid flows from inside the outer casing 11 to the other end. When it needs to be closed, turn the handwheel 15 to lower the valve core 13, which then re-enters between the partition plates 12, thus achieving closure. Then, turn the first turntable 27, which drives the worm gear 26 to rotate. Due to the meshing relationship between the worm gear 26 and the worm wheel 25, the worm gear 26 drives the worm wheel 25 to rotate, which in turn drives the rotating shaft 21 to rotate. The rotating shaft 21 then drives the sealing plate 23 and the sealing ring 24 to rotate, thus sealing the inside of the outer casing 11. Through the sealing of the sealing plate 23 and the sealing ring 24, the liquid in the connecting pipe 35 is prevented from flowing into the outer casing 11 and contacting the valve core 13, thereby reducing the impact pressure of the liquid on the valve core 13 and reducing the corrosion of the valve core 13 by the liquid.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing 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. 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. An improved proportional valve structure, comprising a valve body structure (1), characterized in that: The valve body structure (1) is equipped with a sealing structure (2) and an installation structure (3). The valve body structure (1) includes a shell (11). The sealing structure (2) includes a rotating shaft (21), a bottom block (22), a sealing plate (23), a sealing ring (24), and a worm (26). The rotating shaft (21) is installed inside the shell (11) through the bottom block (22). The sealing ring (24) is installed on the rotating shaft (21) through the sealing plate (23). A worm wheel (25) is fixedly installed at the top of the rotating shaft (21). The worm (26) is rotatably installed on the side wall of the shell (11). The worm (26) and the worm wheel (25) mesh with each other. A first turntable (27) is fixedly installed at one end of the worm (26).

2. The improved proportional valve structure according to claim 1, characterized in that: The valve body structure (1) includes a partition plate (12), a valve core (13) and a first screw (14). The partition plate (12) is fixedly installed inside the outer shell (11). The valve core (13) is located inside the valve body structure (1). The first screw (14) is threadedly installed on the top wall of the outer shell (11). The bottom end of the first screw (14) is rotatably connected to the valve core (13) through a bearing. A handwheel (15) is fixedly installed at the end of the first screw (14) away from the valve core (13).

3. The improved proportional valve structure according to claim 1, characterized in that: The bottom block (22) is fixedly installed on the outer bottom wall of the outer shell (11). The rotating shaft (21) is rotatably installed inside the outer shell (11), with one end of the rotating shaft (21) extending into the bottom block (22) and the other end of the rotating shaft (21) passing through the outer shell (11) and extending to the top of the outer shell (11). The rotating shaft (21) is rotatably connected to the outer shell (11) and the bottom block (22) respectively. The sealing plate (23) is fixedly installed on the rotating shaft (21).

4. The improved proportional valve structure according to claim 3, characterized in that: The outer wall of the outer casing (11) is fixedly mounted with a sealing box (28), the rotating shaft (21) extends into the interior of the sealing box (28), the worm gear (25) is inside the sealing box (28), the worm (26) passes through the sealing box (28) and extends to the other end of the sealing box (28), and the worm (26) and the sealing box (28) are rotatably connected.

5. The improved proportional valve structure according to claim 4, characterized in that: The installation structure (3) includes a connecting ring (31), a fixing frame (32), a second screw (33), a second turntable (34), and a connecting pipe (35). The connecting ring (31) is fixedly installed at both ends of the outer shell (11). The fixing frame (32) is fixedly installed on the outer wall of the outer shell (11). The second screw (33) is threadedly installed on the fixing frame (32). The second screw (33) is threadedly connected to the side wall of the connecting ring (31). The second turntable (34) is fixedly installed at one end of the second screw (33).

6. The improved proportional valve structure according to claim 5, characterized in that: A flange (36) is fixedly installed at one end of the connecting pipe (35). A threaded hole (37) is provided on the side wall of the flange (36), and the threaded hole (37) and the second screw (33) cooperate with each other.

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