Ball valve
By setting the control valve core and gear meshing structure in the ball valve, the precise control and flexible adjustment of flow are achieved, which solves the shortcomings of the existing ball valve in high-precision adjustment occasions and simplifies the maintenance of the pipeline system.
Patent Information
- Application Number
- CN202421710869.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the event that high flow adjustment accuracy is required, the existing ball valve has low adjustment accuracy and poor linearity, resulting in the need of additional valve replacement, which increases the complexity of the pipeline system and the difficulty of maintenance.
A ball valve is designed to achieve precise control of flow by setting the regulating valve core and gear meshing structure in the valve body. It adopts a separate ball core design to facilitate the replacement and maintenance of the regulating valve core.
Improves the accuracy and flexibility of flow regulation, reduces dependence on other valves, and simplifies the maintenance and troubleshooting of pipeline systems.
Smart Images
Figure CN223152830U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of ball valves, and specifically provides a ball valve. Background Art
[0002] Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. They can be tightly closed with only a 90-degree rotation operation and a very small torque. Ball valves are most suitable for use as on-off valves and cut-off valves. Due to their structural characteristics, that is, a sealing structure is adopted between the ball and the valve seat, which ensures the sealing performance of the valve in the closed state, so they are very suitable for some occasions where medium leakage can be effectively prevented.
[0003] Currently, ball valves achieve rapid opening and closing by rotating the ball, with simple operation and quick response. However, there are still some deficiencies:
[0004] The on-off characteristics of the valve core of the ball valve determine that it has good sealing performance when fully open or fully closed, but this also limits its application scenarios. In occasions where high flow regulation accuracy is required, compared with dedicated flow regulating valves, its regulation accuracy is lower and the linearity is not good, making it more difficult to accurately control the flow. Therefore, other valves (butterfly valves, regulating valves, etc.) are needed to replace it, which increases the complexity of the pipeline system and will also bring inconvenience to subsequent pipeline maintenance and fault troubleshooting.
[0005] Therefore, it is necessary to provide a ball valve to solve the above problems.
[0006] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute prior art. Summary of the Invention
[0007] Based on the above problems existing in the prior art, the problem to be solved by this application is: to provide a ball valve to solve the problems mentioned in the above background art, that is, the on-off characteristics of the valve core of the ball valve determine that it has good sealing performance when fully open or fully closed, but this also limits its application scenarios. In occasions where high flow regulation accuracy is required, compared with dedicated flow regulating valves, its regulation accuracy is lower and the linearity is not good, making it more difficult to accurately control the flow. Therefore, other valves (butterfly valves, regulating valves, etc.) are needed to replace it, which increases the complexity of the pipeline system and will also bring inconvenience to subsequent pipeline maintenance and fault troubleshooting.
[0008] The technical solution adopted by this application to solve its technical problems is: a ball valve, including a valve body, a ball core is rotatably connected inside the valve body, a regulating valve core is fixedly connected inside the ball core through bolts, two fixing plates are fixedly connected inside the regulating valve core, a number of through grooves are opened inside the fixing plates, two regulating discs are rotatably connected inside the two fixing plates, a driven shaft is fixedly connected between the two regulating discs, a driven gear is fixedly connected to the outer wall of the driven shaft, a sealing box is fixedly connected to one side of the valve body, a rack is slidably connected inside the sealing box, the rack is slidably connected to the ball core and the regulating valve core, and the rack meshes with the driven gear.
[0009] Further, a driving shaft is rotatably connected inside the sealing box, a main gear is fixedly connected to the outer wall of the driving shaft, and the main gear meshes with the rack.
[0010] Further, a rotating rod is rotatably connected inside the valve body, one end of the rotating rod is fixedly connected to the ball core, and an adjusting rod is fixedly connected to the outer wall of the rotating rod.
[0011] Further, a number of corresponding arc grooves are opened on the inner wall of the regulating valve core and the outer wall of the fixing plate.
[0012] Further, a number of mounting seats are fixedly connected to the outer wall of the regulating valve core in an annular array, and the regulating valve core is fixedly connected to the inside of the ball core through bolts on the mounting seats.
[0013] Further, one end of the driving shaft is fixedly connected with a fine adjustment handle, and the fine adjustment handle is located outside the sealing box.
[0014] Further, the rotation angle of the rotating rod and the adjusting rod is 90 degrees.
[0015] Further, a sealing outer plate is fixedly connected to the outer wall of the valve body through bolts, and the sealing outer plate is located on one side of the ball core.
[0016] The beneficial effects of this application are:
[0017] (1) A ball valve provided by the present application can control the opening and closing of the ball valve by rotating a rotating rod and an adjusting rod. When the ball valve is opened, by rotating a fine adjustment handle and using the engagement of a main gear and a rack, the rack continuously slides into the interior of the ball core. Then, through the engagement of the rack and a driven gear, the driven shaft is driven to rotate, and thus an adjusting disc rotates inside a fixing plate. At this time, by the rotation of the adjusting disc, a flow angle is formed with a through groove opened inside the fixing plate, thereby enabling more precise control of the flow rate. Compared with traditional ball valves, this ball valve can be applied to some occasions that require both flow rate and sealing performance, thus reducing the replacement of other valves and further reducing the installation requirements for valves in the pipeline system. Therefore, it is also beneficial for subsequent maintenance and troubleshooting.
[0018] (2) A ball valve provided by the present application has an entire regulating valve core fixed to the ball core by bolts, that is, the valve core of this ball valve adopts a split design. According to actual requirements, a regulating valve core with a suitable flow rate adjustment can be replaced, which improves the personalized customization of this ball valve. In addition, when it is necessary to replace the regulating valve core during use, only the sealing outer plate and the regulating valve core need to be disassembled in sequence, which improves the maintenance efficiency and has high flexibility.
[0019] In addition to the purposes, features, and advantages described above, the present application has other purposes, features, and advantages. The following will refer to the drawings for a more detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The specification drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application.
[0021] In the drawings:
[0022] Figure 1 is a schematic diagram of the overall structure in the present application;
[0023] Figure 2 is a cross-sectional view of the overall structure in the present application;
[0024] Figure 3 is another cross-sectional view of the overall structure in the present application in another state;
[0025] Figure 4 is a cross-sectional view of the overall structure from another angle in the present application;
[0026] Figure 5 is another cross-sectional view of the overall structure from another angle in another state in the present application;
[0027] Figure 6 is an exploded view of the regulating valve core in the present application;
[0028] Figure 7 Schematic diagram of the structure of the main gear part in this application.
[0029] Among them, each reference numeral in the figure:
[0030] 1. Valve body; 2. Sealing box; 3. Sealing outer plate; 4. Ball core; 5. Rotating rod; 6. Adjusting rod; 7. Control valve core; 8. Fixed plate; 9. Adjusting disc; 10. Driven shaft; 11. Driven gear; 12. Rack; 13. Driving shaft; 14. Main gear; 15. Mounting seat; 16. Fine adjustment handle. Detailed implementation manners
[0031] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments may be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.
[0032] In order to enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0033] As Figure 1-7 shown, this application provides a ball valve, including a valve body 1. A ball core 4 is rotatably connected inside the valve body 1. A control valve core 7 is fixedly connected inside the ball core 4 through bolts. Two fixed plates 8 are fixedly connected inside the control valve core 7. A plurality of through grooves are formed inside the fixed plates 8. Two adjusting discs 9 are rotatably connected inside the two fixed plates 8. A driven shaft 10 is fixedly connected between the two adjusting discs 9. A driven gear 11 is fixedly connected to the outer wall of the driven shaft 10. A sealing box 2 is fixedly connected to one side of the valve body 1. A rack 12 is slidably connected inside the sealing box 2. The rack 12 is slidably connected to the ball core 4 and the control valve core 7. The rack 12 meshes with the driven gear 11. A driving shaft 13 is rotatably connected inside the sealing box 2. A main gear 14 is fixedly connected to the outer wall of the driving shaft 13. The main gear 14 meshes with the rack 12. One end of the driving shaft 13 is fixedly connected with a fine adjustment handle 16. The fine adjustment handle 16 is located outside the sealing box 2. A rotating rod 5 is rotatably connected inside the valve body 1. One end of the rotating rod 5 is fixedly connected to the ball core 4. An adjusting rod 6 is fixedly connected to the outer wall of the rotating rod 5. The rotation angle of the rotating rod 5 and the adjusting rod 6 is 90 degrees.
[0034] In this embodiment, by rotating the rotating rod 5 and the adjusting rod 6, the opening and closing of this ball valve can be controlled in the same way as a traditional ball valve. After the ball valve is opened, the ball valve can be finely adjusted manually by rotating the fine adjustment handle 16. By engaging the main gear 14 with the rack 12, the rack 12 continuously slides into the inside of the ball core 4, and then by engaging the rack 12 with the driven gear 11, the driven shaft 10 is driven to rotate, and further the adjusting disc 9 rotates inside the fixed plate 8. At this time, by rotating the adjusting disc 9, a flow angle is formed with the through groove opened inside the fixed plate 8, so as to improve the accurate control of the flow rate.
[0035] It should be explained that when the ball valve needs to be closed, the rack 12 needs to be reset first. In this embodiment, the driving sources of the rotating rod 5 and the driving shaft 13 can be remotely controlled by setting up pneumatic components. This is an existing technology and will not be elaborated here.
[0036] A plurality of corresponding arc grooves are opened on the inner wall of the regulating valve core 7 and the outer wall of the fixed plate 8. A plurality of mounting seats 15 are fixedly connected to the outer wall of the regulating valve core 7 in a circular array, and the regulating valve core 7 is fixedly connected to the inside of the ball core 4 through bolts. The outer wall of the valve body 1 is fixedly connected with a sealing outer plate 3 through bolts, and the sealing outer plate 3 is located on one side of the ball core 4.
[0037] In this embodiment, the entire regulating valve core 7 is fixedly connected to the ball core 4 through bolts, that is, the ball core 4 of this ball valve adopts a split design, and the regulating valve core 7 with a suitable flow rate adjustment can be replaced according to actual needs, which improves the personalized customization of this ball valve. In addition, when the regulating valve core 7 needs to be replaced during use, only the sealing outer plate 3 and the regulating valve core 7 need to be disassembled in sequence, which improves the maintenance efficiency and has high flexibility. The arc grooves opened on the inner wall of the regulating valve core 7 and the outer wall of the fixed plate 8 can ensure that when this ball valve is opened, no matter what position the adjusting disc 9 is in, this ball valve can ensure that at least a certain amount of flow is transported. The size setting of the flow rate here can be set according to actual needs, that is, the number and radius size of the arc grooves.
[0038] Working principle:
[0039] In use, install this ball valve in the required pipeline system. The opening and closing means are the same as those of traditional ball valves. By rotating the rotating rod 5 and the adjusting rod 6, the opening and closing of this ball valve can be controlled in the same way as that of traditional ball valves. After the ball valve is opened, this ball valve can be finely adjusted manually by rotating the fine adjustment handle 16. By the meshing of the main gear 14 and the rack 12, the rack 12 continuously slides into the inside of the ball core 4, and then by the meshing of the rack 12 and the driven gear 11, the driven shaft 10 is driven to rotate, and then the adjusting disc 9 rotates inside the fixed plate 8. At this time, by the rotation of the adjusting disc 9, a flow angle is formed with the through groove opened inside the fixed plate 8, so as to improve the accurate control of the flow rate. It should be explained that when this ball valve needs to be closed, the rack 12 needs to be reset first to avoid interference;
[0040] The entire regulating valve core 7 is fixed to the ball core 4 by bolts, that is, the ball core 4 of this ball valve adopts a split design, and the regulating valve core 7 with a suitable flow rate adjustment can be replaced according to actual needs, which improves the personalized customization of this ball valve. In addition, when the regulating valve core 7 needs to be replaced during use, only the sealing outer plate 3 and the regulating valve core 7 need to be disassembled in sequence, which improves the maintenance efficiency and has high flexibility. The arc grooves opened on the inner wall of the regulating valve core 7 and the outer wall of the fixed plate 8 can ensure that when this ball valve is opened, no matter what position the adjusting disc 9 is in, this ball valve can ensure that at least a certain amount of flow is delivered. The size of the flow rate here can be set according to actual needs, that is, the number and radius of the arc grooves established.
[0041] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A ball valve, comprising a valve body (1), characterized in that: Inside the valve body (1), a ball core (4) is rotatably connected. Inside the ball core (4), a regulating valve core (7) is fixedly connected by bolts. Inside the regulating valve core (7), two fixing plates (8) are fixedly connected. Inside the fixing plates (8), a number of through grooves are formed. Inside both of the fixing plates (8), a regulating disc (9) is rotatably connected. A driven shaft (10) is fixedly connected between the two regulating discs (9). An outer wall of the driven shaft (10) is fixedly connected with a driven gear (11). On one side of the valve body (1), a sealing box (2) is fixedly connected. Inside the sealing box (2), a rack (12) is slidably connected. The rack (12) is slidably connected with the ball core (4) and the regulating valve core (7). The rack (12) meshes with the driven gear (11).
2. A ball valve according to claim 1, characterized in that: Inside the sealing box (2), a driving shaft (13) is rotatably connected. An outer wall of the driving shaft (13) is fixedly connected with a main gear (14). The main gear (14) meshes with the rack (12).
3. A ball valve according to claim 1, characterized in that: Inside the valve body (1), a rotating rod (5) is rotatably connected. One end of the rotating rod (5) is fixedly connected with the ball core (4). An outer wall of the rotating rod (5) is fixedly connected with an adjusting rod (6).
4. A ball valve according to claim 1, characterized in that: On inner walls of the regulating valve core (7) and outer walls of the fixing plates (8), a number of corresponding arc grooves are formed.
5. A ball valve according to claim 1, characterized in that: On an outer wall of the regulating valve core (7), a number of mounting seats (15) are fixedly connected in a circular array. The mounting seats (15) fixedly connect the regulating valve core (7) to the inside of the ball core (4) by bolts.
6. A ball valve according to claim 2, characterized in that: One end of the driving shaft (13) is fixedly connected with a fine adjustment handle (16). The fine adjustment handle (16) is located outside the sealing box (2).
7. A ball valve according to claim 3, characterized in that: The rotation angle of the rotating rod (5) and the adjusting rod (6) is 90 degrees.
8. A ball valve according to claim 1, wherein: An outer wall of the valve body (1) is fixedly connected with a sealing outer plate (3) by bolts. The sealing outer plate (3) is located on one side of the ball core (4).