Discharging ball valve capable of preventing backflow
By setting a rectangular box and baffle in the outlet pipe of the discharge ball valve, and using threaded rods and knobs to drive the baffle movement, the problem of reflow caused by loose connection of the traditional discharge ball valve is solved, achieving higher practicality and efficiency of use.
Patent Information
- Application Number
- CN202420984040.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-05-09
AI Technical Summary
After a long time of use of the traditional discharge ball valve, rust and corrosion may occur at the connection between the ball and the valve stem, resulting in loose connection. When closed, the ball cannot return to its original position, which may cause reflux and reduce practicality.
A discharge ball valve that can prevent backflow is designed. By setting a rectangular box and baffle in the outlet pipe, the baffle is driven to move with a threaded rod and a knob, blocking or passing the materials inside the outlet pipe to prevent backflow.
It effectively prevents rust and corrosion at the connection between the ball body and the valve stem inside the ball valve, avoids reflow, and improves the practicality and efficiency of the discharge ball valve.
Smart Images
Figure CN222836314U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of discharge ball valves, in particular to a discharge ball valve capable of preventing backflow. Background Art
[0002] The discharge ball valve is a fluid control device commonly used in industry. Its main function is to control and regulate the flow of fluid. In many industrial fields, such as chemical, petroleum, natural gas, metallurgy, electric power and other industries, the discharge ball valve is widely used in various pipeline systems.
[0003] The discharge ball valve is usually composed of a ball, a valve body, a valve seat and an operating device. It is simple, reliable and durable. In general, the discharge ball valve plays a very important role in industrial fluid control. It can not only control and adjust the flow and pressure of the fluid, but also change the flow direction of the fluid. It has good sealing performance and corrosion resistance. Its advantages include fast closing, compactness and lightness, high temperature resistance, corrosion resistance, etc., making the discharge ball valve an indispensable equipment in the industrial field.
[0004] In the current existing technology, after a long period of use, the connection between the ball inside the traditional discharge ball valve and the valve stem may rust and corrode, causing the connection to become loose. As a result, when the valve is closed, the ball may not be able to return to its original position, which may cause the discharged sewage or materials to flow back, reducing the practicality of the discharge ball valve.
[0005] Therefore, a discharge ball valve capable of preventing backflow is proposed to solve the above problems. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned problems, a discharge ball valve capable of preventing backflow is proposed.
[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model described in the utility model is a discharge ball valve capable of preventing backflow, comprising a ball valve body, one end of the ball valve body is fixedly connected to a water inlet pipe, the other end of the ball valve body is fixedly connected to a water outlet pipe, the middle part of the water outlet pipe is fixedly connected to a rectangular box, the interior of the rectangular box is slidably connected to two baffles, the two side walls of the baffles are clamped on the inner wall of the water outlet pipe, one side of the two baffles is provided with a threaded groove, the interior of each of the threaded grooves is threadedly connected to a threaded rod, one end of each of the threaded rods is rotatably connected to the inner wall of one end of the rectangular box, one end of each of the threaded rods is fixedly connected to a rotating knob, and each of the threaded rods rotates inside the rectangular box via the rotating knob.
[0008] Preferably, the inner walls at both ends of each baffle are provided with sliding grooves, the interior of each sliding groove is slidably connected to a limiting rod, and one end of each limiting rod is fixedly connected to the inner wall of the rectangular box.
[0009] Preferably, one side of one baffle is fixedly connected with a tooth groove, and one side of the other baffle is fixedly connected with a tooth block, and one side of the tooth groove is meshed with one side of the tooth block.
[0010] Preferably, a rotating drum is sleeved inside the water outlet pipe, and both ends of the rotating drum are fixedly connected to limiting collars, and the outer wall of each limiting collar is rotatably connected to the inner wall of the water outlet pipe.
[0011] Preferably, two bearings are fixedly connected to the middle outer wall of the rotating drum, the outer wall of each bearing is fixedly connected to the inner wall of the water outlet pipe, and the rotating drum rotates on the inner wall of the water outlet pipe via the two bearings.
[0012] Preferably, a plurality of guide vanes are fixedly connected to the inner wall of one end of the rotating drum, and the plurality of guide vanes are arranged in a circular array, and a plurality of blades are fixedly connected to the inner wall of the other end of the rotating drum, and the plurality of blades are arranged in a circular array.
[0013] Beneficial effects of the utility model:
[0014] The utility model provides a discharge ball valve capable of preventing backflow. By using a knob to drive a threaded rod to rotate, a baffle can be driven to move inside a rectangular box, so that the two baffles fit together or separate from each other. After the two baffles fit together, the materials discharged from the outlet pipe can be blocked, and after separation, the sewage or materials can flow normally. The above method can prevent rust and corrosion at the connection between the ball and the valve stem inside the ball valve, which causes the ball to be unable to return to its original position when the valve is closed. By rotating the two knobs and the threaded rod, the two baffles fit together, which can prevent the discharged sewage or materials from flowing back, thereby improving the practicality of the discharge ball valve.
[0015] The utility model provides a discharge ball valve capable of preventing backflow. After the ball valve body is installed on a discharge pipe, water flows through an inlet pipe to an outlet pipe. As the water flows through guide plates, the force generated between a plurality of guide plates and the water flow is utilized to cause a rotating drum to start rotating. Then, a blade fixed at one end of the rotating drum can be utilized to cut impurities in sewage, thereby reducing blockage in the outlet pipe and improving the use efficiency of the ball valve body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 It is a three-dimensional diagram of the utility model;
[0018] Figure 2 It is a closed schematic diagram of the baffle in the utility model;
[0019] Figure 3 It is a schematic diagram of the opening of the rectangular box in the utility model;
[0020] Figure 4 It is a cross-sectional view of the baffle in the utility model;
[0021] Figure 5 It is a three-dimensional diagram of the baffle in the utility model;
[0022] Figure 6 It is a cross-sectional view of the water outlet pipe in the utility model;
[0023] Legend:
[0024] 1. Ball valve body; 2. Water inlet pipe; 3. Water outlet pipe; 4. Rectangular box; 5. Baffle; 6. Threaded groove; 7. Slide groove; 8. Tooth groove; 9. Tooth block; 10. Threaded rod; 11. Turning knob; 12. Limit rod; 13. Rotating cylinder; 14. Guide vane; 15. Blade; 16. Limiting collar; 17. Bearing. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Specific examples are given below.
[0027] See also Figure 1 - Figure 6 The utility model provides a discharge ball valve capable of preventing backflow, comprising a ball valve body 1, one end of which is fixedly connected to a water inlet pipe 2, and the other end of which is fixedly connected to a water outlet pipe 3. A rectangular box 4 is fixedly connected to the middle of the water outlet pipe 3, and two baffles 5 are slidably connected to the inside of the rectangular box 4, and the side walls of the two baffles 5 are engaged with the inner wall of the water outlet pipe 3. A threaded groove 6 is provided on one side of the two baffles 5, and a threaded rod 10 is threadedly connected to the inside of each threaded groove 6. One end of each threaded rod 10 is rotatably connected to the inner wall of one end of the rectangular box 4, and one end of each threaded rod 10 is fixedly connected to a knob 11, and each threaded rod 10 rotates inside the rectangular box 4 via the knob 11.
[0028] When working, first install the rectangular box 4 in the middle of the outlet pipe 3, then use the connection of the water inlet pipe 2 and the outlet pipe 3 to install the ball valve body 1 on the discharge pipe, and rotate the knobs 11 at both ends of the rectangular box 4 to drive the threaded rod 10 to rotate. The threaded rod 10 is connected to the inner wall of the rectangular box 4 by rotation to prevent the threaded rod 10 from being misaligned during the rotation process. And as the threaded rod 10 rotates inside the thread groove 6, the baffle 5 can be driven to move inside the rectangular box 4, so that the two baffles 5 fit together or separate. When the two baffles 5 fit together, the materials discharged from the inside of the outlet pipe 3 can be blocked, and the sewage or materials can flow normally after separation. The above-mentioned method can prevent rust and corrosion at the connection between the ball and the valve stem inside the ball valve, which may cause the ball to be unable to return to its original position when the valve is closed. By rotating the two knobs 11 and the threaded rod 10, the two baffles 5 are fitted together, which can prevent the discharged sewage or materials from flowing back, thereby improving the practicality of the discharge ball valve.
[0029] Further, such as Figure 2 and Figure 3 As shown, the inner walls at both ends of each baffle 5 are provided with a slide groove 7, and the interior of each slide groove 7 is slidably connected to a limit rod 12, and one end of each limit rod 12 is fixedly connected to the inner wall of the rectangular box 4. A tooth groove 8 is fixedly connected to one side of one baffle 5, and a tooth block 9 is fixedly connected to one side of the other baffle 5, and one side of the tooth groove 8 is meshed with one side of the tooth block 9.
[0030] During operation, by moving the two baffles 5, the movement of the baffles 5 can be restricted by utilizing the connection between the slide groove 7 and the limit rod 12, so that the baffles 5 can stably slide inside the rectangular box 4, reducing the friction between the outer wall of the baffle 5 and the inner wall of the rectangular box 4, thereby improving the service life of the structure. As the two baffles 5 fit together, the tooth grooves 8 and the tooth blocks 9 engage with each other, thereby preventing liquid leakage when the two baffles 5 are closed, thereby improving the use efficiency of the device.
[0031] Further, such as Figure 4 As shown, a rotating drum 13 is sleeved inside the water outlet pipe 3, and both ends of the rotating drum 13 are fixedly connected to limit collars 16, and the outer wall of each limit collar 16 is rotatably connected to the inner wall of the water outlet pipe 3. Two bearings 17 are fixedly connected to the outer wall of the middle part of the rotating drum 13, and the outer wall of each bearing 17 is fixedly connected to the inner wall of the water outlet pipe 3. The rotating drum 13 rotates on the inner wall of the water outlet pipe 3 through the two bearings 17. A plurality of guide vanes 14 are fixedly connected to the inner wall of one end of the rotating drum 13, and the plurality of guide vanes 14 are arranged in a circular array. A plurality of blades 15 are fixedly connected to the inner wall of the other end of the rotating drum 13, and the plurality of blades 15 are arranged in a circular array.
[0032] During operation, after the ball valve body 1 is installed on the discharge pipe, the water flows through the water inlet pipe 2 to the water outlet pipe 3. The rotating drum 13 inside the water outlet pipe 3 is fixed inside the water outlet pipe 3 by the bearing 17, and can rotate inside the water outlet pipe 3. The limiting ring 16 can be used to reduce the impurities in the water flow from entering between the bearings 17, and the friction of the balls inside the bearings 17 can be reduced, thereby improving the service life of the structure. As the water flows through the guide plate 14, the force generated between the multiple guide plates 14 and the water flow is used to make the rotating drum 13 start to rotate, and the blade 15 fixed at one end of the rotating drum 13 can be used to cut the impurities in the sewage, thereby reducing the blockage of the water outlet pipe 3 and improving the use efficiency of the ball valve body 1.
[0033] Working principle: first, install the rectangular box 4 in the middle of the outlet pipe 3, and then use the connection of the water inlet pipe 2 and the outlet pipe 3 to install the ball valve body 1 on the discharge pipe, so that the water flows through the water inlet pipe 2 to the outlet pipe 3, and uses the rotating drum 13 inside the outlet pipe 3 and the bearing 17 to fix the rotating drum 13 inside the outlet pipe 3 and allow it to rotate inside the outlet pipe 3. Then, use the limiting ring 16 to reduce the impurities in the water flow from entering between the bearings 17, and reduce the friction of the balls inside the bearings 17. As the water flows through the guide plate 14, the force generated between the multiple guide plates 14 and the water flow is used to make the rotating drum 13 start to rotate, and then use the The blade 15 fixed at one end of the rotating drum 13 can cut impurities in the sewage. By rotating the knobs 11 at both ends of the rectangular box 4, the knobs 11 can be used to drive the threaded rod 10 to rotate. As the threaded rod 10 rotates inside the thread groove 6, the baffle 5 can be driven to move inside the rectangular box 4, so that the two baffles 5 can fit together or separate from each other. The sliding groove 7 and the limiting rod 12 can be used to limit the movement of the baffle 5, so that the baffle 5 can slide stably inside the rectangular box 4. As the two baffles 5 fit together, the tooth grooves 8 and the tooth blocks 9 are meshed with each other, which can prevent leakage when the two baffles 5 are closed and prevent backflow.
[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and 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, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A discharge ball valve capable of preventing backflow, comprising a ball valve body (1), characterized in that: One end of the ball valve body (1) is fixedly connected to a water inlet pipe (2), and the other end of the ball valve body (1) is fixedly connected to a water outlet pipe (3). The middle of the water outlet pipe (3) is fixedly connected to a rectangular box (4). Two baffles (5) are slidably connected inside the rectangular box (4). The side walls of the two baffles (5) are engaged with the inner wall of the water outlet pipe (3). One side of the two baffles (5) is provided with a threaded groove (6). The inside of each threaded groove (6) is threadedly connected to a threaded rod (10). One end of each threaded rod (10) is rotatably connected to the inner wall of one end of the rectangular box (4). One end of each threaded rod (10) is fixedly connected to a rotating knob (11). Each threaded rod (10) rotates inside the rectangular box (4) via the rotating knob (11).
2. A discharge ball valve capable of preventing backflow according to claim 1, characterized in that: The inner walls at both ends of each baffle (5) are provided with a sliding groove (7), the interior of each sliding groove (7) is slidably connected to a limiting rod (12), and one end of each limiting rod (12) is fixedly connected to the inner wall of the rectangular box (4).
3. A discharge ball valve capable of preventing backflow according to claim 2, characterized in that: One side of one baffle plate (5) is fixedly connected to a tooth groove (8), and one side of the other baffle plate (5) is fixedly connected to a tooth block (9), and one side of the tooth groove (8) is meshed with one side of the tooth block (9).
4. A discharge ball valve capable of preventing backflow according to claim 1, characterized in that: A rotating drum (13) is sleeved inside the water outlet pipe (3), and both ends of the rotating drum (13) are fixedly connected to limiting collars (16), and the outer wall of each limiting collar (16) is rotatably connected to the inner wall of the water outlet pipe (3).
5. A discharge ball valve capable of preventing backflow according to claim 4, characterized in that: Two bearings (17) are fixedly connected to the middle outer wall of the rotating drum (13), and the outer wall of each bearing (17) is fixedly connected to the inner wall of the water outlet pipe (3). The rotating drum (13) rotates on the inner wall of the water outlet pipe (3) via the two bearings (17).
6. A discharge ball valve capable of preventing backflow according to claim 4, characterized in that: A plurality of guide vanes (14) are fixedly connected to the inner wall at one end of the rotating drum (13), and the plurality of guide vanes (14) are arranged in a ring array; a plurality of blades (15) are fixedly connected to the inner wall at the other end of the rotating drum (13), and the plurality of blades (15) are arranged in a ring array.