Water insulation pad of manual ball valve actuating mechanism

Abstract

The utility model provides a manual ball valve actuating mechanism waterproof pad, which relates to the technical field of ball valve waterproof pads and comprises a ball valve main pipe, a ball bin is arranged on the inner wall of the ball valve main pipe, a blocking ball is rotatably connected to the inner wall of the ball bin, and a waterproof ring bin is arranged on the inner wall of the ball valve main pipe. The problems that according to an existing waterproof pad design, the waterproof pad is usually arranged in a manual ball valve, pressure needs to be applied by means of a fixing assembly to fix the waterproof pad, the waterproof pad is difficult to replace independently after being abraded or damaged, once the waterproof pad needs to be replaced, the whole ball valve needs to be detached, and the waterproof pad cannot be replaced independently are solved. Due to the fact that the waterproof pad is not easy to replace, many users select to replace the whole ball valve after the waterproof pad is abraded, the maintenance cost of equipment is undoubtedly increased, the service life of the equipment is shortened, and the service life of the equipment is prolonged. The situation is a remarkable defect for enterprises and industrial applications pursuing efficient and low-cost operation.

Description

Technical Field

[0001] This utility model relates to the field of ball valve water-proof pad technology, and in particular to a water-proof pad for a manual ball valve actuator. Background Technology

[0002] A manual ball valve is a type of valve that controls fluid flow by turning a handwheel or handle, and it is widely used in various industrial fields. Driven by both technological advancements and industry demand, the development prospects of manual ball valves are showing a positive growth trend. Its core component is a ball with a central channel; rotating the ball 90° around an axis perpendicular to the channel opens and closes the valve. As an important fluid control device, the manual ball valve plays a crucial role in multiple fields. In the future, with continuous technological innovation and market expansion...

[0003] In existing technologies, the sump gasket of a manual ball valve is typically installed on the internal wall of the valve. Each time the ball valve is opened or closed, friction occurs between the sump gasket and the ball. Over time and with frequent use, this continuous friction causes the sump gasket to gradually wear down. Since the sump gasket is a key component ensuring the ball valve's sealing and preventing liquid leakage, its wear severely affects the valve's water-blocking effect, leading to leakage problems. Current sump gasket designs usually place it inside the manual ball valve and require fixing components to apply pressure to secure its position. This design makes it difficult to replace the sump gasket individually after wear or damage. Once the sump gasket needs replacement, the entire ball valve must be disassembled, which not only increases maintenance difficulty and cost but also renders the entire ball valve unusable. Due to the difficulty in replacing the sump gasket, many users choose to replace the entire ball valve after the sump gasket wears down. This undoubtedly increases equipment maintenance costs and shortens equipment lifespan. This situation is a significant drawback for enterprises and industrial applications that pursue efficient and low-cost operations. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a water-proof pad for a manual ball valve actuator.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a water-proof pad for a manual ball valve actuator, comprising a ball valve main pipe, a ball chamber formed on the inner wall of the ball valve main pipe, a ball plug rotatably connected to the inner wall of the ball chamber, a water-proof ring chamber formed on the inner wall of the ball valve main pipe, a sealing ring formed on the inner wall of the water-proof ring chamber, a pressure ring groove formed on the inner wall of the sealing ring, a main pressure residual ring arranged in a circumferential array on the inner wall of the pressure ring groove, a secondary pressure inner arc slidably connected to the inner wall of the main pressure residual ring, a pressure supply spring fixed to one end of the secondary pressure inner arc, and a secondary pressure inner arc fixed to one end of the pressure supply spring.

[0006] Preferably, a limiting arc member is fixed to the inner circumferential surface of the secondary pressure inner arc, and the side of the limiting arc member is slidably connected to the surface of the main pressure residual ring. In the prior art, in mechanical systems, when the secondary pressure inner arc moves inside the main pressure residual ring and applies force to it, the friction between the two is relatively large. This large friction will significantly affect the movement trajectory of the secondary pressure inner arc. Specifically, this friction causes the secondary pressure inner arc to deviate and skew during its movement. The deviation and skew not only prevent the secondary pressure inner arc from running smoothly along the predetermined trajectory, but also cause it to interfere with other components during its movement. Unnecessary contact and collisions generate additional friction, which not only increases energy consumption and reduces system efficiency, but more importantly, accelerates the wear of the inner arc of the secondary pressure ring and related components, thereby shortening the overall service life of the product. To address this problem, this invention uses a limiting arc component to solve the issue. When the inner arc of the secondary pressure ring moves inside the main pressure ring and applies force to it, the limiting arc component slides and cooperates with the surface of the main pressure ring to effectively limit the sliding direction of the inner arc of the secondary pressure ring, thereby preventing its deviation and improving the service life of the equipment.

[0007] Preferably, the inner circumferential surface of the limiting arc component is fixed with a positioning outer arc plate, and the circumferential surface of the positioning outer arc plate is slidably connected to the inner circumferential surface of the main pressure residual ring. In the prior art, when the secondary pressure inner arc moves inside the main pressure residual ring, the friction between the two is relatively large. This friction will significantly affect the movement trajectory and position of the secondary pressure inner arc. Specifically, the large friction will cause the position of the secondary pressure inner arc inside the main pressure residual ring to shift or change. This change in position will further lead to inconsistencies in the expansion diameter of each main pressure residual ring. Since the main pressure residual ring is a key component for supporting and fixing the sealing ring, its inconsistency in diameter will directly affect the pressure distribution at various positions of the sealing ring. When the sealing ring is subjected to pressure from different locations and of different magnitudes, its fixing effect will be greatly reduced. This is because the sealing ring needs uniform pressure to ensure that it can fit tightly against the surface or interface to be sealed, thereby forming an effective seal. If the pressure distribution is uneven, the sealing ring will be too tight in some areas and too loose in others. Such a state is not conducive to forming a stable sealing environment. To address this problem, this utility model adopts the method of installing a positioning outer arc plate. By cooperating with the main pressure residual ring, the movement trajectory and position of the secondary pressure inner arc are made to run along a predetermined track, so that the pressure applied to the sealing ring by each main pressure residual ring is the same, thereby improving the fixing effect.

[0008] Preferably, the outer arc plate of the positioning device has an elliptical through-groove on its side. When the diameter of the main ball valve pipe is small and it is difficult for the operator to put their hand in, a cable tie or similar object can be passed through the elliptical through-groove of the two diagonally opposite outer arc plates to tighten it, keeping the inner arc of the secondary pressure device in a retracted state. After the component is placed into the pressure ring groove, the cable tie can be cut to make the inner arc of the secondary pressure device spring back, thereby facilitating the installation and disassembly of the operator and improving the user experience.

[0009] Preferably, both ends of the positioning outer arc plate are fixed with pressure-resistant elliptical pads, which prevents collisions between components and improves the service life of the equipment.

[0010] Preferably, the main pressure ring has a rounded edge on its circumferential surface, which prevents the edge from cutting the sealing ring and thus improves the service life of the equipment.

[0011] Preferably, a stepped sealing ring is provided on one side of the sealing ring, which improves the fit with the ball and enhances the water-proof performance of the equipment.

[0012] Beneficial effects:

[0013] 1. In existing technologies, the water-tight gasket of a manual ball valve is usually installed on the inner wall of the valve. Each time the ball valve is opened or closed, friction occurs between the water-tight gasket and the ball. Over time and with frequent use, this continuous friction causes the water-tight gasket to gradually wear down. Since the water-tight gasket is a key component ensuring the ball valve's sealing and preventing liquid leakage, its wear severely affects the water-tightness of the ball valve, leading to leakage problems. Existing water-tight gasket designs typically place it inside the manual ball valve and require fixing components to apply pressure to secure its position. This design makes it difficult to replace the water-tight gasket individually after wear or damage. Once the water-tight gasket needs replacement, the entire ball valve must be disassembled, which not only increases the difficulty and cost of maintenance but also renders the entire ball valve unusable. Due to the difficulty in replacing the water-tight gasket, many users choose to replace the entire ball valve after the water-tight gasket wears down, which undoubtedly increases equipment maintenance costs and shortens the equipment's lifespan. This situation is a significant drawback for enterprises and industrial applications that pursue efficient and low-cost operation. To address this problem, this utility model adopts the installation of a main pressure residual ring. This method solves the problem by allowing operators to replace the water-tight gasket of the manual ball valve actuator. First, the old water-tight gasket is removed. Then, a sealing ring is placed in the water-tight ring chamber. Next, a pressure fixing component is placed into the pressure ring groove of the sealing ring. The main pressure residual ring is then pressed, causing the secondary pressure inner arc to be pressed into the inner wall of the main pressure residual ring. Simultaneously, the pressure supply spring is compressed. After placing it in the pressure ring groove, the pressure is released, allowing the pressure supply spring to release its elastic potential energy and push the secondary pressure inner arc outward, causing the main pressure residual ring to expand. However, due to the limitations imposed by the interaction between the secondary pressure inner arc and the pressure supply spring, the diameter of the main pressure residual ring's expansion is limited, preventing... To prevent the interference fit from affecting the main pipe of the ball valve, when the main pressure residual ring expands outward, it compresses the sealing ring, pressing it tightly into the water-proof ring chamber, fixing it in place under pressure. At the same time, the pressure on the ring groove causes the two ends of the sealing ring to converge towards the center, further improving the sealing effect. When the sealing ring wears out again, the operator can retighten the main pressure residual ring and reuse it after replacing it with a new sealing ring. This facilitates installation and replacement, reduces the difficulty of replacement, reduces maintenance costs, and achieves the effect of reducing maintenance costs and improving work efficiency.

[0014] 2. In existing technologies, in mechanical systems, when the secondary pressure inner arc moves inside the main pressure residual ring and applies force to it, the relatively large friction between the two significantly affects the movement trajectory of the secondary pressure inner arc. Specifically, this friction causes the secondary pressure inner arc to deviate and skew during its movement. This deviation and skew not only prevents the secondary pressure inner arc from running smoothly along the predetermined trajectory, but also causes unnecessary contact and collisions with other components during its movement, resulting in additional friction. This unnecessary friction not only increases energy consumption and reduces system efficiency, but more importantly, it accelerates the wear of the secondary pressure inner arc and related components, thereby shortening the overall service life of the product. To address this problem, this utility model solves it by installing a limiting arc component. When the secondary pressure inner arc moves inside the main pressure residual ring and applies force to it, the limiting arc component effectively restricts the sliding direction of the secondary pressure inner arc through sliding and cooperation with the surface of the main pressure residual ring, thereby preventing its deviation and improving the service life of the equipment.

[0015] 3. In existing technology, when the secondary pressure inner arc moves inside the main pressure residual ring, the relatively large friction between them significantly affects the trajectory and position of the secondary pressure inner arc. Specifically, the large friction causes the position of the secondary pressure inner arc inside the main pressure residual ring to shift or change. This change in position further leads to inconsistencies in the expansion diameter of each main pressure residual ring. Since the main pressure residual ring is a key component for supporting and fixing the sealing ring, its inconsistency in diameter directly affects the pressure distribution at various positions of the sealing ring. When the sealing ring is subjected to pressure of different magnitudes from different positions, its... The sealing effect will be greatly reduced because the sealing ring needs uniform pressure to ensure that it can fit tightly against the surface or interface to be sealed, thereby forming an effective seal. If the pressure distribution is uneven, the sealing ring will be too tight in some areas and too loose in others. This state is not conducive to forming a stable sealing environment. To address this problem, this utility model adopts the method of installing a positioning outer arc plate. By cooperating with the main pressure residual ring, the movement trajectory and position of the secondary pressure inner arc are made to run along a predetermined track, so that the pressure applied by each main pressure residual ring to the sealing ring is the same, thereby improving the fixing effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the water-proof ring chamber of this utility model;

[0018] Figure 3 This is an exploded view of the main pressure ring of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the limiting rail arc component of this utility model;

[0020] Figure 5 This is a cross-sectional view of the positioning outer arc plate of this utility model;

[0021] Figure 6 This is a cross-sectional view of the pressure spring of this utility model.

[0022] Legend:

[0023] 1. Ball valve main pipe; 101. Ball chamber; 102. Ball plug; 2. Water-proof ring chamber; 201. Sealing ring; 202. Pressure ring groove; 203. Main pressure residual ring; 204. Secondary pressure inner arc; 205. Pressure supply spring; 3. Restricting rail arc component; 4. Position-holding outer arc plate; 401. Pressure-stopping elliptical pad; 402. Elliptical through groove; 5. Pressure round edge; 501. Cut-off ladder sealing ring. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:

[0027] Reference Figure 1-6A water-proof pad for a manual ball valve actuator includes a ball valve main pipe 1, a ball chamber 101 formed on the inner wall of the ball valve main pipe 1, a ball plug 102 rotatably connected to the inner wall of the ball chamber 101, a water-proof ring chamber 2 formed on the inner wall of the ball valve main pipe 1, a sealing ring 201 formed on the inner wall of the water-proof ring chamber 2, a pressure ring groove 202 formed on the inner wall of the sealing ring 201, a main pressure residual ring 203 arranged in a circular array on the inner wall of the pressure ring groove 202, a secondary pressure inner arc 204 slidably connected to the inner wall of the main pressure residual ring 203, a pressure supply spring 205 fixed to one end of the secondary pressure inner arc 204, and a secondary pressure inner arc 204 fixed to one end of the pressure supply spring 205. A limiting arc component 3 is fixed to the inner circumferential surface of the secondary pressure inner arc 204. The side of the limiting arc component 3 is slidably connected to the surface of the main pressure residual ring 203. In the mechanical system, when the secondary pressure inner arc 204 moves inside the main pressure residual ring 203 and applies force to it, the friction between the two is relatively large. This large friction will significantly affect the movement trajectory of the secondary pressure inner arc 204. Specifically, this friction causes the secondary pressure inner arc 204 to deviate and skew during its movement. The deviation and skew not only prevent the secondary pressure inner arc 204 from running smoothly along the predetermined trajectory, but also cause it to interfere with other movements during its movement. Unnecessary contact and collision between components generate additional friction. This unnecessary friction not only increases energy consumption and reduces system efficiency, but more importantly, it accelerates the wear of the inner arc 204 and related components, thereby shortening the overall service life of the product. This problem is solved by installing a limiting arc component 3. When the inner arc 204 moves inside the main pressure residual ring 203 and applies force to it, the limiting arc component 3 slides and cooperates with the surface of the main pressure residual ring 203 to effectively limit the sliding direction of the inner arc 204, thereby preventing it from deviating and improving the service life of the equipment.

[0028] A positioning outer arc plate 4 is fixed to the inner circumferential surface of the limiting arc component 3. The circumferential surface of the positioning outer arc plate 4 is slidably connected to the inner circumferential surface of the main pressure residual ring 203. When the secondary pressure inner arc 204 moves inside the main pressure residual ring 203, the relatively large friction between the two significantly affects the movement trajectory and position of the secondary pressure inner arc 204. Specifically, the large friction causes the position of the secondary pressure inner arc 204 inside the main pressure residual ring 203 to shift or change. This change in position further leads to inconsistencies in the expansion diameter of each main pressure residual ring 203. Since the main pressure residual ring 203 is a key component for supporting and fixing the sealing ring 201, its inconsistency in diameter directly affects the pressure distribution at various positions of the sealing ring 201. When the sealing ring 201 is subjected to pressure from different positions and of different magnitudes, its fixing effect will be greatly reduced. This is because the sealing ring 201 needs uniform pressure to ensure that it can fit tightly against the surface or interface to be sealed, thereby forming an effective seal. If the pressure distribution is uneven, the sealing ring 201 will be too tight in some areas and too loose in others. Such a state is not conducive to forming a stable sealing environment. The problem is solved by installing the positioning outer arc plate 4. The positioning outer arc plate 4 cooperates with the main pressure residual ring 203 to make the movement trajectory and position of the secondary pressure inner arc 204 run along a predetermined track, so that the pressure applied by each main pressure residual ring 203 to the sealing ring 201 is the same, thereby improving the fixing effect. The outer arc plate 4 has an elliptical groove 402 on its side. This allows for easy access when the diameter of the main ball valve pipe 1 is small, making it difficult for operators to insert their hands. Cable ties or similar items can be passed through the elliptical grooves 402 on the two diagonally opposite outer arc plates 4 to tighten the inner arc plate, keeping the secondary pressure inner arc 204 in a retracted state. After the component is placed into the pressure ring groove 202, the cable ties can be cut to allow the inner pressure inner arc 204 to spring back, facilitating installation and disassembly and improving user experience. Both ends of the outer arc plate 4 are fixed with pressure-resistant elliptical pads 401 to prevent collisions between components and extend the equipment's lifespan. The main pressure residual ring 203 has a pressure-rounded edge 5 on its circumferential edge to prevent the edge from cutting the sealing ring 201, further extending the equipment's lifespan. A stepped sealing ring 501 is provided on one side of the sealing ring 201 to improve the fit with the ball valve 102 and enhance the equipment's water-tightness.

[0029] The working principle of this utility model is as follows: When the operator needs to replace the water-proof gasket of the manual ball valve actuator, the old water-proof gasket is first removed. Then, a sealing ring 201 is placed in the water-proof ring chamber 2, and a pressure fixing component is placed into the pressure ring groove 202 of the sealing ring 201. The main pressure residual ring 203 is pressed forcefully so that the secondary pressure inner arc 204 is pressed into the inner wall of the main pressure residual ring 203. At the same time, the pressure supply spring 205 is compressed. After placing it into the pressure ring groove 202, it is released, so that the pressure supply spring 205 releases its elastic potential energy and pushes the secondary pressure inner arc 204 outward, causing the main pressure residual ring 203 to expand outward. At the same time, due to the cooperation between the secondary pressure inner arc 204 and the pressure supply spring 205, The diameter of the main pressure residual ring 203 is limited to prevent excessive expansion from affecting the main ball valve pipe 1. When the main pressure residual ring 203 expands, it compresses the sealing ring 201, pressing it tightly into the water-proof ring chamber 2, fixing it in place under pressure. At the same time, the pressure on the ring groove 202 causes the two ends of the sealing ring 201 to converge towards the center, further improving the sealing effect. When the sealing ring 201 wears out again, the operator can tighten the main pressure residual ring 203 again and reuse it after replacing the sealing ring 201. This facilitates installation and replacement and reduces the difficulty of replacement.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water-proof pad for a manual ball valve actuator, comprising a ball valve main pipe (1), wherein a ball chamber (101) is provided on the inner wall of the ball valve main pipe (1), and a plug ball (102) is rotatably connected to the inner wall of the ball chamber (101), characterized in that: The inner wall of the ball valve main pipe (1) is provided with a water-proof ring chamber (2), the inner wall of the water-proof ring chamber (2) is provided with a sealing ring (201), the inner wall of the sealing ring (201) is provided with a pressure ring groove (202), the inner wall of the pressure ring groove (202) is provided with a main pressure residual ring (203) arranged in a circular array, the inner wall of the main pressure residual ring (203) is slidably connected with a secondary pressure inner arc (204), one end of the secondary pressure inner arc (204) is fixed with a pressure supply spring (205), and one end of the pressure supply spring (205) is fixed with a secondary pressure inner arc (204).

2. The water-proof pad for a manual ball valve actuator according to claim 1, characterized in that: The inner circumferential surface of the secondary pressure inner arc (204) is fixed with a limiting rail arc component (3), and the side of the limiting rail arc component (3) is slidably connected to the surface of the main pressure residual ring (203).

3. The water-proof pad for a manual ball valve actuator according to claim 2, characterized in that: The inner circumferential surface of the limiting rail arc member (3) is fixed with a positioning outer arc plate (4), and the circumferential surface of the positioning outer arc plate (4) is slidably connected to the inner circumferential surface of the main pressure residual ring (203).

4. The water-proof pad for a manual ball valve actuator according to claim 3, characterized in that: The outer arc plate (4) for positioning has an elliptical through groove (402) on its side.

5. The water-proof pad for a manual ball valve actuator according to claim 3, characterized in that: Both ends of the positioning outer arc plate (4) are fixed with pressure-stopping elliptical pads (401).

6. The water-proof pad of the manual ball valve actuator according to claim 1, characterized in that: The main pressure ring (203) has a pressure round edge (5) on its circumferential edge.

7. The water-proof pad for a manual ball valve actuator according to claim 1, characterized in that: A stepped sealing ring (501) is provided on one side of the sealing ring (201).

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