Rotary ball valve
By designing sealing components with automatic compensation function in the rotary ball valve, the problem of frequent wear of the sealing gasket is solved, and better sealing effect and longer service life are achieved, while reducing maintenance frequency and production costs.
Patent Information
- Application Number
- CN202422282822.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing rotary ball valves have poor sealing effect during long-term opening and closing, resulting in frequent wear of the sealing gasket, increasing production costs and affecting working efficiency.
A rotary ball valve including a valve seat, an upper valve shaft, a lower valve shaft, a valve plate and a sealing assembly is designed. The sealing assembly consists of a rubber pad, a skeleton and an elastic plate. Through the coordination of the limiting groove and the tightening screw, the automatic compensation function is realized to ensure the sealing fit and stability.
It improves the sealing effect between the valve plate and the valve seat, reduces maintenance frequency, extends the service life of the valve, and saves more effort during the rotation of the valve, reducing production costs.
Smart Images
Figure CN223063173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluid control, and particularly relates to a rotary ball valve. Background Technique
[0002] The core component of a rotary ball valve is a rotatable valve plate, which rotates during the opening and closing of the valve. When the rotary ball valve is opened, the valve plate rotates to a specific angle, making the fluid passage unobstructed; when the rotary ball valve is closed, the valve plate rotates to another position, and the valve plate fits tightly with the valve seat, thereby preventing fluid from passing through.
[0003] At present, due to its excellent performance and wide applicability, the rotary ball valve plays an important role in the fields of industrial automation and fluid control. Generally, in pumping stations and water treatment plants, when starting or stopping the water pump, it is necessary to open and close the valve to control the water flow and prevent the water hammer effect. However, during the long-term continuous opening and closing process, the valve plate will continuously wear the gasket, resulting in poor sealing effect. At this time, the user needs to replace the gasket, but frequently replacing the gasket will increase production costs and affect work efficiency. Therefore, the utility model provides a rotary ball valve to meet the requirements. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a rotary ball valve. By setting a sealing component, not only can the sealing effect between the valve plate and the valve seat be better, but also it can be more labor-saving when the user rotates the valve. In addition, the sealing component with an automatic compensation function ensures the sealing conformity and stability, reduces the maintenance frequency, and extends the service life of the valve.
[0005] To solve the above technical problem, the utility model provides the following technical solutions:
[0006] A rotary ball valve, comprising a valve seat, an upper valve shaft and a lower valve shaft are installed on the valve body, a limiting groove is opened on the outer wall of one end of the valve seat, valve plates are inserted at one ends of the upper valve shaft and the lower valve shaft, a valve flange is screwed to one end of the valve body through a nut, a plurality of first set screws and a plurality of second set screws are sequentially screwed from the inside to the outside of the valve flange, and a pressure plate is abutted against one end of the first set screw; a sealing component, which is used to seal the gap between the valve body and the valve plate, and the sealing component is connected to the valve seat and the valve plate.
[0007] Optionally, the sealing component includes a rubber pad clamped on the limiting groove.
[0008] Optionally, a first skeleton is sleeved on the inner wall of the rubber pad, and four arc notches are opened in the middle of the first skeleton.
[0009] Optionally, an L-shaped skeleton is fixedly connected to the outer wall at one end of the first skeleton, and a plurality of lightweight grooves are formed in the L-shaped skeleton.
[0010] Optionally, an S-shaped skeleton is fixedly connected to one end of the L-shaped skeleton, and segmented grooves are formed in both the L-shaped skeleton and the S-shaped skeleton.
[0011] Optionally, a second skeleton is fixedly connected to one end of the S-shaped skeleton.
[0012] Optionally, four arc-shaped elastic plates are fixedly connected to one end of the second skeleton.
[0013] Optionally, four L-shaped support plates are respectively fixedly connected to one ends of the four arc-shaped elastic plates, and elliptical grooves are formed in the L-shaped support plates.
[0014] Optionally, the same C-shaped skeleton is fixedly connected to one ends of the four L-shaped support plates.
[0015] Optionally, straight grooves are formed in both the arc-shaped elastic plates and the L-shaped support plates.
[0016] Compared with the prior art, the present utility model has at least the following beneficial effects:
[0017] In the above solution, by setting the sealing component, not only can the sealing effect between the valve plate and the valve seat be better, but also it can be more labor-saving when the user rotates the valve. In addition, the sealing component with an automatic compensation function ensures the sealing conformity and stability, reduces the maintenance frequency, and extends the service life of the valve.
[0018] By setting the first skeleton, the L-shaped skeleton and the S-shaped skeleton, not only can the rubber pad fit the valve plate more closely, but also the segmented grooves formed in the L-shaped skeleton and the S-shaped skeleton can make it more labor-saving when the user rotates the valve.
[0019] By setting the arc-shaped elastic plates, the L-shaped support plates and the C-shaped skeleton, not only can it be convenient for the user to install the rubber pad on the valve seat, but also the sealing effect of the rubber pad can be improved. In addition, the straight grooves and the elliptical grooves respectively formed in the arc-shaped elastic plates and the L-shaped support plates can reduce the weight of the device and lower the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present utility model, and together with the specification are further used to explain the principles of the present utility model and enable those skilled in the relevant art to implement and use the present utility model.
[0021] Figure 1 It is a three-dimensional structural schematic diagram of a rotary ball valve;
[0022] Figure 2 is a schematic perspective view of the semi-sectional structure of a rotary ball valve;
[0023] Figure 3 is Figure 2 a schematic perspective view of the enlarged structure at position A in
[0024] Figure 4 a schematic perspective view of the enlarged structure of the cooperation of a rubber pad, a first skeleton and an L-shaped skeleton;
[0025] Figure 5 a schematic perspective view of the enlarged structure of the cooperation of a first skeleton and an L-shaped skeleton;
[0026] Figure 6 is a schematic perspective view of the enlarged structure of the cooperation of an L-shaped support plate, a C-shaped skeleton and an arc-shaped elastic plate.
[0027] Reference numerals:
[0028] 1, valve seat; 101, valve plate; 102, upper valve shaft; 103, lower valve shaft; 104, limit groove; 105, valve flange; 106, socket head cap screw; 107, second set screw; 108, first set screw; 109, pressure plate; 2, rubber pad; 3, first skeleton; 301, arc notch; 4, L-shaped skeleton; 401, segmented groove; 402, lightweight groove; 5, S-shaped skeleton; 6, second skeleton; 7, arc-shaped elastic plate; 701, straight groove; 8, C-shaped skeleton; 9, L-shaped support plate; 901, elliptical groove.
[0029] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed Embodiments
[0030] The following describes in detail a rotary ball valve provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0031] It should be noted that in the specification, references to "one embodiment", "an embodiment", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Additionally, when a particular feature, structure, or characteristic is described in connection with an embodiment, implementing such feature, structure, or characteristic in connection with other embodiments (whether or not explicitly described) should be within the knowledge of those skilled in the relevant art.
[0032] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood to not necessarily be intended to convey a set of exclusive factors, but rather, depending at least in part on the context, can alternatively allow for the existence of other factors that are not necessarily explicitly described.
[0033] It can be understood that the meanings of "on...", "above...", and "over..." in the present utility model should be construed in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.
[0034] Furthermore, spatial relative terms such as "under...", "below...", "lower", "above...", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the figures. Spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the figures. The device may be oriented in other ways, and the spatial relative descriptors used herein can be interpreted accordingly.
[0035] Such as Figures 1 to 6As shown in the figure, an embodiment of the utility model provides a rotary ball valve, which includes a valve seat 1. An upper valve shaft 102 and a lower valve shaft 103 are installed on the valve seat 1. A limiting groove 104 is formed on the outer wall at one end of the valve seat 1. Valve plates 101 are inserted at one ends of the upper valve shaft 102 and the lower valve shaft 103. A valve flange 105 is screwed to one end of the valve seat 1 through a nut. A plurality of first set screws 108 and a plurality of second set screws 107 are screwed to the valve flange 105 in sequence from inside to outside. One end of the first set screw 108 abuts against a pressure plate 109; a sealing assembly is used to seal the gap between the valve body and the valve plate 101. The sealing assembly is connected to the valve seat 1 and the valve plate 101. Specifically, the upper valve shaft 102 and the lower valve shaft 103 are respectively installed on the inner wall at the top and the inner wall at the bottom of the valve seat 1. Both the upper valve column and the lower valve column are cylindrical. The upper and lower ends of the outer wall on one side of the valve plate 101 are respectively sleeved on one ends of the upper valve shaft 102 and the lower valve shaft 103. The user can control the upper valve shaft 102 through a valve switch to drive the valve plate 101 to rotate, so as to achieve precise control of the water flow rate. The valve flange 105 is screwed to the end of the valve seat 1 close to the valve plate 101 through a socket head cap screw 106. A plurality of first set screws 108 and a plurality of second set screws 107 are both arranged in a circumferential array on the valve. The two are screwed to the valve flange 105 in sequence from inside to outside. The first set screw 108 is located inside the valve flange 105, and the second set screw 107 is located outside the valve flange 105. One end of the first set screw 108 close to the valve plate 101 is screwed to the outer wall on one side of the pressure plate 109. When the device leaves the factory, the staff installs the valve flange 105 to the valve seat 1 through the socket head cap screw 106, and then, according to the customer's requirements or the actual application scenario, turns the first set screw 108 to push the pressure plate 109 to displace. The pressure plate 109 will abut against the sealing structure of the sealing assembly, so as to adjust the sealing distance of the axial gap between the sealing assembly and the valve plate 101, making the sealing more reliable. After the first set screw 108 is adjusted to the reliable sealing position, the second set screw 107 is installed to ensure that the sealing assembly is prevented from loosening and backing off during long-term use, having the effect of double protection. The position of the lower valve shaft 103 can also be adjusted by turning the screw on the lower valve shaft 103, so as to change and ensure the gap between the valve plate 101 and the valve seat 1, and always keep the sealing surface of the valve plate 101 in line with the sealing surface of the valve seat 1. A limiting groove 104 is formed on the outer wall on the side of the valve seat 1 close to the valve plate 101. The limiting groove 104 is generally in the shape of a "U". The above structural settings can facilitate the user to adjust and control the valve.
[0036] As an implementation manner in this embodiment, as Figures 1 to 6As shown, the sealing assembly includes a rubber gasket 2 clamped on the limiting groove 104. Specifically, the "U"-shaped limiting groove 104 clamps the rubber gasket 2. The rubber gasket 2 is made of rubber and has elasticity. As mentioned above, by turning the first set screw 108, the pressing plate 109 is pushed to displace. The pressing plate 109 will press against the sealing structure of the sealing assembly, where the sealing structure specifically refers to the rubber gasket 2. The pressing plate 109 abuts against the outer wall of one side of the rubber gasket 2. The outer wall of the other side of the rubber gasket 2 will be pushed by the pressing plate 109 and abut against the outer wall of the valve plate 101. Such a setting can achieve a good sealing effect. The outer wall of the end of the rubber gasket 2 far from the valve plate 101 is adapted to the limiting groove 104, which is convenient for installing the rubber gasket 2 on the valve seat 1. The above structural setting is convenient for the user to clamp the rubber gasket 2 onto the limiting groove 104 or disassemble it, and can also adjust the sealing distance of the axial clearance between the rubber gasket 2 and the valve plate 101 as needed to make the sealing more reliable.
[0037] A first frame 3 is sleeved on the inner wall of the rubber pad 2, four arc notches 301 are opened in the middle of the first frame 3, an L-shaped frame 4 is fixedly connected to the outer wall of one side of the first frame 3, a plurality of lightweight grooves 402 are opened on the L-shaped frame 4, an S-shaped frame 5 is fixedly connected to one end of the L-shaped frame 4, both the L-shaped frame 4 and the S-shaped frame 5 are opened with segmented grooves 401, and a second frame 6 is fixedly connected to one end of the S-shaped frame 5. Specifically, the first frame 3 is sleeved on the inner wall of the rubber pad 2, the first frame 3 is in the shape of a hollow circular plate, and is made of plastic. Four arc notches 301 are equidistantly opened on the first frame 3 In the middle part, the arc notch 301 is in an arc shape, which can reduce the production cost of the device. The L-shaped skeleton 4 is fixedly connected to the outer wall of one side of the first skeleton 3. The L-shaped skeleton 4 is in an "L" shape as a whole and is made of plastic. It has a certain curvature at the end away from the first skeleton 3, which can effectively cooperate with the rubber pad 2 to press against the outer wall of the valve plate 101 to form a sealing effect. A plurality of lightweight grooves 402 are provided on the outer wall of the end of the L-shaped skeleton 4 with the curvature, which can reduce the production cost of the device and reduce the weight of the device. One end of the S-shaped skeleton 5 is fixedly connected to the end of the first skeleton 3 with the curvature. The S-shaped frame 5 is in an "S" shape and is made of plastic. It is elastic and can be deformed in coordination with the L-shaped frame 4. The other end of the S-shaped frame 5 is fixedly connected to the outer wall of one end of the second frame 6. The second frame 6 is in a circular plate shape and is made of plastic. When the user rotates the valve plate 101, the outer wall of the valve plate 101 will rub against the rubber pad 2, thereby driving the L-shaped frame 4 to deform toward the end of the S-shaped frame 5. At this time, the L-shaped frame 4 will cause the S-shaped frame 5 to be stressed, and the end thereof fixedly connected to the L-shaped frame 4 will deform toward the other end. Since the segmented grooves 4 are provided on both the L-shaped frame 4 and the S-shaped frame 5 01, therefore, the L-shaped skeleton 4 will cooperate with the S-shaped skeleton 5 to adapt to the outer wall on the side that rubs against the rubber pad 2, making it more labor-saving during the rotation process. During the long-term opening and closing process of the device, the outer wall of the valve plate 101 constantly rubs against the outer wall of the rubber pad 2, which will cause the rubber pad 2 to wear, and the L-shaped skeleton 4 cooperates with the S-shaped skeleton 5 under the action of elasticity, so that the outer wall of the rubber pad 2 will always fit the outer wall of the valve plate 101, which has the effect of automatic compensation. The above structural setting can help the user save more effort in the process of opening or closing the valve, and it also has the effect of automatic compensation, reducing maintenance costs.
[0038] One end of the second skeleton 6 is fixedly connected with four arc-shaped elastic plates 7. One end of each of the four arc-shaped elastic plates 7 is fixedly connected with four L-shaped support plates 9. An elliptical groove 901 is formed in the L-shaped support plate 9. One end of each of the four L-shaped support plates 9 is fixedly connected with the same C-shaped skeleton 8. Straight grooves 701 are formed in both the arc-shaped elastic plate 7 and the L-shaped support plate 9. Specifically, one end of each of the four arc-shaped elastic plates 7 is symmetrically and fixedly connected to the outer wall of one end of the second skeleton 6 in pairs. The L-shaped support plate 9 is in an "L" shape and is made of plastic. The short end of the L-shaped support plate 9 is fixedly connected to the outer wall of one end of the arc-shaped elastic plate 7. The arc-shaped elastic plate 7 is arc-shaped and is made of plastic. Straight grooves 701 are formed in the middle of the arc-shaped elastic plate 7 and the middle of the short end of the L-shaped support plate 9. An elliptical groove 901 is formed in the middle of the long end of the L-shaped support plate 9. The straight groove 701 and the elliptical groove 901 can reduce the weight of the device. The C-shaped skeleton 8 is in a "C" shape and is made of plastic. One end of the C-shaped skeleton 8 is fixedly connected to the outer wall of one end of the first skeleton 3. The outer walls of the long ends of the four L-shaped support plates 9 are fixedly connected to the outer wall of the other end of the C-shaped skeleton 8. When the user installs the device on the valve seat 1 and then fixes the water pipe to the valve seat 1 through a nut, the connection surface of the water pipe will squeeze the rubber pad 2 on the side where the L-shaped support plate 9 is located. The L-shaped support plate 9 will displace in the direction of the valve plate 101 after being stressed, driving the arc-shaped elastic plate 7 and the C-shaped skeleton 8 to deform. The arc-shaped elastic plate 7 and the C-shaped skeleton 8 are both fixedly connected to the end of the L-shaped support plate 9 and deform in the direction of their other ends. Under the action of elasticity, the outer wall of the rubber pad 2 on the side where the L-shaped skeleton 4 is located can be more closely attached to the gap between the valve plate 101 and the valve seat 1. The above structural settings can improve the sealing effect of the rubber pad 2.
[0039] The working principle of the technical solution provided by the present utility model is as follows:
[0040] Before leaving the factory, the staff first snap the rubber gasket 2 onto the limit groove 104, and then fix and connect the valve flange 105 to the valve seat 1 through the socket head cap screws 106. The staff can drive the displacement of the pressure plate 109 by screwing the first set screw 108 according to the requirements of the customer. The pressure plate 109 will press against the rubber gasket 2 on the side where the L-shaped support plate 9 is located, so as to adjust the sealing distance of the axial clearance between the rubber gasket 2 and the valve plate 101, making the seal more reliable. After the first set screw 108 is adjusted to the reliable sealing position, then install the second set screw 107 to ensure that the rubber gasket 2 is anti-loosening and anti-withdrawal during long-term use. The L-shaped support plate 9 will displace in the direction of the valve plate 101 after being stressed, driving the arc-shaped elastic plate 7 and the C-shaped skeleton 8 to deform. The arc-shaped elastic plate 7 and the C-shaped skeleton 8 are both fixed to the end of the L-shaped support plate 9 and deform in the direction of their other end. Under the action of elasticity, it will drive the second skeleton 6 to displace in the direction of the valve plate 101, thereby driving the S-shaped skeleton 5 to deform. Under the elastic action of the S-shaped skeleton 5, it will drive the L-shaped skeleton 4 to deform in the direction of the valve plate 101, making the outer wall of the rubber gasket 2 on the side where the L-shaped skeleton 4 is located fit more closely to the gap between the valve plate 101 and the valve seat 1.
[0041] When the user needs to open and close the valve to control the water flow, it can be controlled by rotating the valve plate 101. During the process of rotating the valve, the outer wall of the valve plate 101 will rub against the rubber gasket 2, thereby driving the L-shaped skeleton 4 to deform towards the end of the S-shaped skeleton 5. At this time, the L-shaped skeleton 4 will exert force on the S-shaped skeleton 5, and the end fixed to the L-shaped skeleton 4 will deform in the direction of the other end. Since segmented slots 401 are provided on both the L-shaped skeleton 4 and the S-shaped skeleton 5, the L-shaped skeleton 4 will cooperate with the S-shaped skeleton 5 to adapt and rub against the outer wall of the rubber gasket 2 on that side, making it more labor-saving during the rotation process. During the long-term opening and closing process of this device, the outer wall of the valve plate 101 continuously rubs against the outer wall of the rubber gasket 2, which will cause the rubber gasket 2 to wear. However, the L-shaped skeleton 4 cooperates with the S-shaped skeleton 5, and under the action of elasticity, the outer wall of the rubber gasket 2 will always fit the outer wall of the valve plate 101, having an automatic compensation effect.
[0042] The present utility model covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the following preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model without these detailed descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. A rotary ball valve, comprising a valve body, characterized in that, An upper valve shaft and a lower valve shaft are installed on the valve body. A limiting groove is provided on the outer wall of one end of the valve body. Valve plates are inserted at one ends of the upper valve shaft and the lower valve shaft. A valve flange is screwed to one end of the valve body through a nut. A plurality of first set screws and a plurality of second set screws are sequentially screwed to the valve flange from inside to outside. One end of the first set screw abuts against a pressing plate; A sealing assembly, which is used to seal the gap between the valve body and the valve plate, and the sealing assembly is connected to the valve body and the valve plate.
2. The rotary ball valve according to claim 1, wherein, The sealing assembly includes a rubber pad clamped on the limiting groove.
3. The rotary ball valve according to claim 2, wherein, A first skeleton is sleeved on the inner wall of the rubber pad. Four arc notches are provided in the middle of the first skeleton.
4. The rotary ball valve according to claim 3, characterized in that, An L-shaped skeleton is fixedly connected to the outer wall of one end of the first skeleton. A plurality of lightweight grooves are provided on the L-shaped skeleton.
5. The rotary ball valve according to claim 4, wherein An S-shaped skeleton is fixedly connected to one end of the L-shaped skeleton. Segmentation grooves are provided on both the L-shaped skeleton and the S-shaped skeleton.
6. The rotary ball valve according to claim 5, wherein A second skeleton is fixedly connected to one end of the S-shaped skeleton.
7. The rotary ball valve according to claim 6, wherein Four arc-shaped elastic plates are fixedly connected to one end of the second skeleton.
8. The rotary ball valve according to claim 7, wherein One ends of the four arc-shaped elastic plates are respectively fixedly connected to four L-shaped support plates. Oval grooves are provided on the L-shaped support plates.
9. The rotary ball valve according to claim 8, wherein One ends of the four L-shaped support plates are all fixedly connected to the same C-shaped skeleton.
10. The rotary ball valve according to claim 8, characterized in that, Straight grooves are provided on both the arc-shaped elastic plates and the L-shaped support plates.