Eccentric rotary ball valve
By designing the structures such as operating wheel, thin rod, clamp rod and magnet ring in the eccentric rotating ball valve, sealing and limiting are achieved, solving the problem of accidental rotation in the sealed state, and ensuring the stable sealing and service life of the ball valve.
Patent Information
- Application Number
- CN202421152148.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The existing eccentric rotary ball valve cannot effectively lock the limit in the closed state, resulting in unexpected rotation and economic losses.
An eccentric rotating ball valve including a valve body, an operating valve stem, a mounting plate, an operating wheel, a thin rod, a clamp rod, a magnet ring and a rubber pad is designed. The sliding of the operating wheel and the movement of the thin rod are achieved. The magnet ring is used for sealing. At the limit, the rubber pad provides sealing and elastic deformation to prevent leakage.
It effectively avoids the misrotation caused by the user's mistaken touching the operating wheel, ensures the sealing stability of the eccentric rotary ball valve, reduces economic losses, and extends the service life of the operating valve stem.
Smart Images
Figure CN222297025U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an eccentric rotary ball valve, in particular to an eccentric rotary ball valve, belonging to the technical field of ball valves. Background Art
[0002] The eccentric rotary regulating valve is a straight-through valve body structure with novel structure and small fluid resistance. The rotation center of the valve core is not concentric with the rotation axis, which can reduce the wear of the valve seat and extend the service life. There is a guide wing at the rear of the valve core, which is conducive to the stable flow of the fluid and has excellent stability. At the same time, it also has large flow and no friction when switching, the seal is not easy to wear, and the opening and closing torque is small, which is suitable for the control of process systems containing slurry.
[0003] For example, the existing patent application number 202321271943.9. The utility model discloses a high-pressure, erosion-resistant eccentric rotary ball valve, which relates to the technical field of eccentric rotary ball valves. The existing eccentric rotary ball valves can only cope with ordinary and slightly harsh working conditions. When encountering a medium containing high particle size and high pressure, the valve core, valve seat and valve stem will be severely eroded. The eccentric rotary ball valve has a short service life, which invisibly increases the cost of use and the use effect is not ideal. The following scheme is proposed, including a valve body, a valve seat is provided in the valve body, a second pressure plate is provided on one side of the valve seat, a first screw is provided in the second pressure plate, a first pressure plate is provided on one side of the second pressure plate, and the first pressure plate is connected to the second pressure plate by a first screw.
[0004] However, during use of the existing eccentric semi-ball valve, although the eccentric semi-ball valve is in a closed state after the switch rotation is completed, it cannot be locked and limited well. When unexpected rotation occurs, the working state of the eccentric semi-ball valve will change, causing economic losses. Utility Model Content
[0005] 1. Technical issues to be resolved
[0006] The purpose of the utility model is to provide an eccentric rotary ball valve in order to solve the above-mentioned problem, so as to solve the problem in the prior art that although the eccentric semi-ball valve is in a closed state, it cannot be locked and limited well. When unexpected rotation occurs, the working state of the eccentric semi-ball valve will change, causing economic losses.
[0007] (II) Technical solution
[0008] The utility model is implemented through the following technical scheme: an eccentric rotary ball valve, including a valve body structure, the valve body structure includes a valve shell, an operating valve stem and a mounting plate, an operating wheel is slidably arranged on the outer side of the operating valve stem, an outer groove is provided on the outer side of the operating valve stem, a thin rod is rotatably arranged on one side of the operating wheel, a clamping rod is fixedly connected to one end of the thin rod, a storage tube is sleeved on the outer side of the clamping rod, a plurality of magnet rings are provided between the storage tube and the clamping rod, a clamping groove is provided on one side of the mounting plate, one end of the clamping rod is inserted into the clamping groove, and the mounting plate cannot rotate around the operating valve stem.
[0009] Preferably, valve seats are fixedly connected to both sides of the valve housing, and both valve seats are provided with opening and closing grooves.
[0010] Preferably, the mounting plate is fixedly sleeved on the outside of the operating valve stem, and a hemispherical valve plate is fixedly connected to one side of the mounting plate, and the hemispherical valve plate is arranged inside one of the opening and closing grooves.
[0011] Preferably, the storage tube is fixedly connected to the inside of the valve housing, the magnet ring is fixedly connected to the inside of the storage tube, a rubber pad is fixedly connected to the inside of the storage tube, the thin rod passes through the rubber pad and is fixedly connected to the rubber pad, and the rubber pad can be elastically deformed to ensure the sealing of the inside of the storage tube.
[0012] Preferably, an inclined plate is fixedly connected to the bottom of one side of the storage tube, and one end of the inclined plate is fixedly connected to a limit plate. The stress generated by the mounting plate and the hemispherical valve plate under the influence of gravity acts on the limit plate to protect the operating valve stem. The limit plate is arranged at the bottom of the mounting plate to extend the service life of the operating valve stem.
[0013] Preferably, a rubber tube is sleeved on the outside of the thin rod, and the rubber tube is fixedly connected to the valve housing. The rubber tube undergoes elastic deformation to fill the gap between the thin rod and the valve housing, thereby improving the sealing between the storage tube and the valve housing. One end of the thin rod is fixedly connected to a mounting ring, and the mounting ring is rotatably connected to the operating wheel. The rotation of the operating wheel will not drive the thin rod to rotate. When the operating wheel moves laterally, the thin rod will be pushed to move through the mounting ring.
[0014] Preferably, a plurality of grooves are formed on the outer side of the operating valve stem, and a sliding block is disposed inside each of the plurality of grooves, and the sliding block is fixedly connected to the operating wheel.
[0015] The utility model provides an eccentric rotary ball valve, which has the following beneficial effects:
[0016] 1. The eccentric rotary ball valve is sealed by operating the valve stem, and then the operating wheel is pushed to slide on the outside of the operating valve stem. When the sliding block slides to the inside of the outer groove opened on the outside of the operating valve stem, the operating wheel rotates to drive the sliding block to rotate inside the outer groove. The rotating operating wheel will not cause the operating valve stem to rotate. After the eccentric rotary ball valve is closed, the situation where the operating valve stem rotates due to the user's accidental touching of the operating wheel is avoided, thereby ensuring the stability of the sealing effect of the eccentric rotary ball valve.
[0017] 2. For the eccentric rotary ball valve, the moving thin rod pushes the clamping rod to move inside the receiving tube, so that one end of the clamping rod is inserted into the clamping groove. At this time, the clamping rod blocks and limits one side of the mounting plate, and the mounting plate cannot rotate around the operating valve stem, and the operating valve stem cannot rotate either, ensuring that the hemispherical valve plate fixed by the mounting plate stays stably inside the opening and closing groove, avoiding accidental touching of the operating valve stem, causing the eccentric rotary ball valve to open without the knowledge of the staff, thereby reducing possible economic losses.
[0018] 3. The eccentric rotary ball valve has a magnet ring that is fixed to the clamp rod by magnetic force, so that the clamp rod can move only when it is subjected to a certain force, thereby preventing the clamp rod from moving away from the mounting plate due to vibration of the eccentric rotary ball valve, thereby ensuring the stability of the clamp rod limiting the mounting plate. The rubber pad can be elastically deformed, and the rubber pad ensures the sealing inside the receiving tube without affecting the movement of the thin rod and the clamp rod, thereby preventing leakage from the inside of the valve housing through the receiving tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the partial structure of the valve seat of the utility model;
[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure of part A;
[0022] Figure 4 It is a structural schematic diagram of the storage tube of the utility model.
[0023]
Main component symbol description
[0024] 1. Valve housing; 2. Valve seat; 3. Hemispherical valve plate; 4. Opening and closing groove; 5. Operating valve stem; 6. Mounting plate; 7. Operating wheel; 8. Mounting ring; 9. Thin rod; 10. Clamping rod; 11. Rubber pad; 12. Magnet ring; 13. Storage tube; 14. Clamping groove; 15. Rubber tube; 16. Inclined plate; 17. Limiting plate; 18. Groove; 19. Outer groove; 20. Sliding block. DETAILED DESCRIPTION
[0025] The embodiment of the utility model provides an eccentric rotary ball valve.
[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including a valve body structure, the valve body structure includes a valve shell 1, an operating valve stem 5 and a mounting plate 6, both sides of the valve shell 1 are fixedly connected with valve seats 2, both valve seats 2 are provided with opening and closing grooves 4, the mounting plate 6 is fixedly sleeved on the outside of the operating valve stem 5, one side of the mounting plate 6 is fixedly connected with a hemispherical valve plate 3, the hemispherical valve plate 3 is arranged in one of the opening and closing grooves 4, by operating the valve stem 5 to control the volume of the hemispherical valve plate 3 inside the opening and closing groove 4, the size of the channel exposed by the valve seat 2 can be controlled, and the flow inside the valve shell 1 can be controlled, and the operating valve stem 5 An operating wheel 7 is slidingly arranged on the outside, a plurality of grooves 18 are provided on the outside of the operating valve stem 5, a sliding block 20 is arranged inside each of the plurality of grooves 18, the sliding block 20 is fixedly connected to the operating wheel 7, the sliding block 20 cooperates with the groove 18, so that a sliding connection relationship is formed between the operating wheel 7 and the operating valve stem 5, an outer groove 19 is provided on the outside of the operating valve stem 5, a thin rod 9 is rotatably arranged on one side of the operating wheel 7, a rubber tube 15 is sleeved on the outside of the thin rod 9, the rubber tube 15 is fixedly connected to the valve housing 1, and the rubber tube 15 supports the thin rod 9 , to ensure the stability of the force on both ends of the thin rod 9 and prevent the thin rod 9 from tilting. One end of the thin rod 9 is fixedly connected to a mounting ring 8, which is rotatably connected to the operating wheel 7. One end of the thin rod 9 is fixedly connected to a clamping rod 10, and a storage tube 13 is sleeved on the outer side of the clamping rod 10. An inclined plate 16 is fixedly connected to the bottom of one side of the storage tube 13. One end of the inclined plate 16 is fixedly connected to a limiting plate 17. The limiting plate 17 is arranged at the bottom of the mounting plate 6. The mounting plate 6 is supported by the limiting plate 17 to reduce the pressure on the operating valve stem 5. 5 for protection, a plurality of magnet rings 12 are arranged between the receiving tube 13 and the clamping rod 10, the receiving tube 13 is fixedly connected to the inside of the valve housing 1, the magnet rings 12 are fixedly connected to the inside of the receiving tube 13, a rubber pad 11 is fixedly connected to the inside of the receiving tube 13, the thin rod 9 passes through the rubber pad 11 and is fixedly connected to the rubber pad 11, the magnet ring 12, the clamping rod 10 and other structures are stored by the receiving tube 13 to avoid being immersed in the liquid, and reduce the possibility of rust affecting the sliding flexibility, and a clamping groove 14 is opened on one side of the mounting plate 6.
[0027] When the utility model is in use, valve seats 2 are fixedly connected to both sides of the valve housing 1, both valve seats 2 are provided with opening and closing grooves 4, a mounting plate 6 is fixedly sleeved on the outside of the operating valve stem 5, a hemispherical valve plate 3 is fixedly connected to one side of the mounting plate 6, and the hemispherical valve plate 3 is arranged inside one of the opening and closing grooves 4, such as Figure 2 As shown, at this time, the interior of the valve housing 1 is separated by the hemispherical valve plate 3, and the water flow cannot pass through the interior of the valve housing 1. The eccentric rotary ball valve composed of the valve housing 1, valve seat 2, hemispherical valve plate 3, operating valve stem 5, mounting plate 6 and other structures is in a closed state.
[0028] After the operating valve stem 5 is controlled to rotate, the operating valve stem 5 drives the hemispherical valve plate 3 to rotate through the mounting plate 6, controls the area of the hemispherical valve plate 3 inside the opening and closing groove 4, opens the passage between the valve seat 2 and the valve housing 1, and the eccentric rotary ball valve enters the open state.
[0029] Since a plurality of grooves 18 are provided on the outer side of the operating valve stem 5, sliding blocks 20 are provided inside the plurality of grooves 18, and the sliding blocks 20 are fixedly connected to the operating wheel 7, the operating wheel 7 forms a sliding connection with the operating valve stem 5 through the sliding blocks 20 and the grooves 18, that is, when the operating wheel 7 rotates, the operating valve stem 5 is driven to rotate synchronously through the sliding blocks 20; when the operating wheel 7 completes the lateral movement of the operating valve stem 5, the operating valve stem 5 is not affected.
[0030] When the work of sealing the eccentric rotary ball valve by operating the valve stem 5 is completed, the operating wheel 7 is pushed to slide on the outside of the operating valve stem 5. When the sliding block 20 slides to the inside of the outer groove 19 opened on the outside of the operating valve stem 5, the rotation of the operating wheel 7 will drive the sliding block 20 to rotate inside the outer groove 19. The rotating operating wheel 7 will not cause the operating valve stem 5 to rotate. After the closing work of the eccentric rotary ball valve is completed, the situation of the operating valve stem 5 rotating due to the user's accidental touching of the operating wheel 7 is avoided, thereby ensuring the stability of the eccentric rotary ball valve in terms of sealing effect.
[0031] One end of the thin rod 9 is fixedly connected to a mounting ring 8, and the mounting ring 8 is rotatably connected to the operating wheel 7, so the rotation of the operating wheel 7 will not drive the thin rod 9 to rotate. When the operating wheel 7 moves laterally, the thin rod 9 will be pushed to move through the mounting ring 8. The receiving tube 13 is fixedly connected to the inside of the valve housing 1, and the moving thin rod 9 pushes the clamping rod 10 to move inside the receiving tube 13, so that one end of the clamping rod 10 is inserted into the clamping groove 14. At this time, the clamping rod 10 blocks and limits one side of the mounting plate 6, and the mounting plate 6 cannot rotate around the operating valve stem 5, and the operating valve stem 5 cannot rotate either, ensuring that the hemispherical valve plate 3 fixed by the mounting plate 6 stays stably in the opening and closing groove 4, avoiding accidental touching of the operating valve stem 5, which causes the eccentric rotating ball valve to be opened without the knowledge of the staff, thereby reducing possible economic losses.
[0032] The magnet ring 12 is fixedly connected to the inside of the storage tube 13. A part of the magnet ring 12 is fixed to the clamping rod 10 by magnetic force, so that the clamping rod 10 can move only after receiving a certain force, thereby preventing the clamping rod 10 from moving away from the mounting plate 6 due to the vibration of the eccentric rotating ball valve, and ensuring the stability of the clamping rod 10 limiting the mounting plate 6. A rubber pad 11 is fixedly connected to the inside of the storage tube 13, and the thin rod 9 passes through the rubber pad 11 and is fixedly connected to the rubber pad 11. The rubber pad 11 can be elastically deformed. The rubber pad 11 ensures the sealing of the inside of the storage tube 13 without affecting the movement of the thin rod 9 and the clamping rod 10, thereby preventing the inside of the valve housing 1 from leaking through the storage tube 13.
[0033] An inclined plate 16 is fixedly connected to the bottom of one side of the storage tube 13, and one end of the inclined plate 16 is fixedly connected to a limit plate 17. The limit plate 17 is arranged at the bottom of the mounting plate 6. The limit plate 17 installed by the storage tube 13 supports the bottom of the mounting plate 6, so that the stress generated by the mounting plate 6 and the hemispherical valve plate 3 under the influence of gravity acts on the limit plate 17, thereby protecting the operating valve stem 5, avoiding deformation of the operating valve stem 5, and extending the service life of the operating valve stem 5.
[0034] A rubber tube 15 is sleeved on the outside of the thin rod 9, and the rubber tube 15 is fixedly connected to the valve housing 1. The gap between the thin rod 9 and the valve housing 1 is filled by the elastically deformed rubber tube 15, thereby further improving the sealing performance between the storage tube 13 and the valve housing 1.
[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An eccentric rotary ball valve, comprising a valve body structure, the valve body structure comprising a valve housing (1), an operating valve stem (5) and a mounting plate (6), characterized in that: An operating wheel (7) is slidably arranged on the outer side of the operating valve stem (5), an outer groove (19) is provided on the outer side of the operating valve stem (5), a thin rod (9) is rotatably arranged on one side of the operating wheel (7), one end of the thin rod (9) is fixedly connected to a clamping rod (10), a storage tube (13) is sleeved on the outer side of the clamping rod (10), a plurality of magnet rings (12) are provided between the storage tube (13) and the clamping rod (10), and a clamping groove (14) is provided on one side of the mounting plate (6).
2. An eccentric rotary ball valve according to claim 1, characterized in that: Valve seats (2) are fixedly connected to both sides of the valve housing (1), and both valve seats (2) are provided with opening and closing grooves (4).
3. An eccentric rotary ball valve according to claim 2, characterized in that: The mounting plate (6) is fixedly sleeved on the outside of the operating valve stem (5), and one side of the mounting plate (6) is fixedly connected to a hemispherical valve plate (3), and the hemispherical valve plate (3) is arranged inside one of the opening and closing grooves (4).
4. The eccentric rotary ball valve according to claim 1, characterized in that: The receiving tube (13) is fixedly connected to the inside of the valve housing (1), the magnet ring (12) is fixedly connected to the inside of the receiving tube (13), a rubber pad (11) is fixedly connected to the inside of the receiving tube (13), and the thin rod (9) passes through the rubber pad (11) and is fixedly connected to the rubber pad (11).
5. The eccentric rotary ball valve according to claim 1, characterized in that: A sloping plate (16) is fixedly connected to the bottom of one side of the storage tube (13); one end of the sloping plate (16) is fixedly connected to a limiting plate (17); and the limiting plate (17) is arranged at the bottom of the mounting plate (6).
6. The eccentric rotary ball valve according to claim 1, characterized in that: A rubber tube (15) is sleeved on the outside of the thin rod (9), and the rubber tube (15) is fixedly connected to the valve housing (1). One end of the thin rod (9) is fixedly connected to a mounting ring (8), and the mounting ring (8) is rotatably connected to the operating wheel (7).
7. The eccentric rotary ball valve according to claim 1, characterized in that: A plurality of grooves (18) are provided on the outside of the operating valve stem (5), and a sliding block (20) is provided inside each of the plurality of grooves (18). The sliding block (20) is fixedly connected to the operating wheel (7).