Intelligent control type quick pressure reduction ball valve

Abstract

The intelligent control type rapid pressure reduction ball valve comprises a valve body, a ball body, a valve rod, an oil storage barrel and an arc-shaped membrane, the ball body is arranged in the valve body, a circulation channel is formed in the ball body, sealing seats are fixed to the positions, on the two sides of the ball body, in the valve body, the valve rod is arranged on the top of the valve body above the ball body, and the valve rod is arranged in the valve body. Filler is arranged at the top of the valve body on the outer side of the valve rod, the driving mechanism is installed at the top end of the valve body, the oil storage barrel is installed on one side of the top end of the driving mechanism, the arc-shaped membrane is fixed to the top of the oil storage barrel, the pressing rod penetrates through the top of the oil storage barrel, and an oil outlet is formed in one side of the bottom end of the oil storage barrel. And the bottom end of the oil outlet is connected with an oil dripping pipe, and the bottom end of the oil dripping pipe extends into the driving mechanism. The driving mechanism can be conveniently lubricated, friction and abrasion of the driving mechanism can be reduced, the service life is prolonged, and the sealing performance of the pressure reducing valve in the closed state is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and in particular to an intelligent control type quick pressure reducing ball valve. Background Art

[0002] The pressure reducing ball valve is a ball valve with a pressure reducing function, which is mainly used to adjust and maintain the pressure in the pipeline within a set range. Its working principle is to change the flow rate of the liquid in the pipeline by rotating the ball, thereby achieving the effect of pressure reduction. The pressure reducing ball valve changes the flow rate of the liquid in the pipeline by rotating the ball, thereby achieving the effect of pressure reduction. Specifically, when the pressure in the pipeline exceeds the set value, the flow rate is reduced by adjusting the opening of the pressure reducing valve, thereby reducing the pressure in the pipeline. Conversely, when the pressure in the pipeline is lower than the set value, the flow rate is increased to increase the pressure. Pressure reducing ball valves are widely used in various occasions where pressure regulation is required, especially in industrial piping systems. They are commonly used in chemical, petroleum, natural gas, electric power and other industries to protect pipelines and surrounding equipment from damage caused by excessive pressure. In addition, pressure reducing ball valves can also be used in household water supply systems to reduce excessive water pressure and protect household equipment.

[0003] Manual drive of the pressure reducing ball valve is the most basic and simplest driving method. The pressure reducing ball valve drives the valve stem by rotating the handwheel, which in turn drives the ball to rotate to open and close the valve. The handwheel and the valve stem are generally driven by threads, gears or other transmission mechanisms. After long-term use, the transmission mechanism lacks lubrication and causes jamming, which affects the smoothness of the valve drive and the service life. Therefore, improvement is urgently needed. Summary of the invention

[0004] The object of the present invention is to provide an intelligent control type quick pressure reducing ball valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent control type quick pressure relief ball valve, comprising a valve body, a sphere, a valve stem, an oil storage cylinder and an arc-shaped diaphragm, the sphere is arranged inside the valve body, and a circulation channel is arranged inside the sphere, and an exhaust hole is arranged on one side of the inside of the sphere, and sealing seats are fixed inside the valve body on both sides of the sphere, the valve stem is arranged on the top of the valve body above the sphere, and the bottom end of the valve stem is fixedly connected to the sphere, a packing is arranged on the top of the valve body outside the valve stem, a driving mechanism is installed on the top of the valve body, the oil storage cylinder is installed on one side of the top of the driving mechanism, the arc-shaped diaphragm is fixed on the top of the oil storage cylinder, a pressure rod is passed through the top of the oil storage cylinder, and the bottom end of the pressure rod extends to the inside of the oil storage cylinder and is connected to the arc-shaped diaphragm, an oil outlet is arranged on one side of the bottom end of the oil storage cylinder, and the bottom end of the oil outlet is connected to an oil dripping pipe, and the bottom end of the oil dripping pipe extends to the inside of the driving mechanism.

[0006] Preferably, a liquid inlet is provided at one end of the interior of the valve body, and a liquid outlet is provided at the other end of the interior of the valve body.

[0007] Preferably, a positioning seat is fixed on the inner wall of the liquid inlet, and a card slot is provided on the surface of the positioning seat, so that the filter screen can be disassembled and cleaned to ensure its filtering effect.

[0008] Preferably, a filter is provided inside the liquid inlet, and a card block is fixed on the outer wall of the filter, and the card block is tightly engaged with the card slot. The filter filters the circulating medium and filters out impurities inside it, thereby preventing the ball valve from being blocked.

[0009] Preferably, the driving end of the driving mechanism is fixedly connected to the top end of the valve stem.

[0010] Preferably, a baffle is fixed inside the oil outlet, and an oil outlet hole is arranged at the center position inside the baffle. Due to the arrangement of the baffle and the tension of the lubricating oil itself, the lubricating oil is ensured not to be discharged in the absence of pressure.

[0011] Preferably, a refueling pipe is installed on the outer wall of the top of the oil storage cylinder, and a sealing cap is threadedly connected to the top end of the refueling pipe.

[0012] Preferably, a spring is sleeved on the outside of the pressure rod, and the top end of the spring is fixedly connected to the pressure rod, and the bottom end of the spring is fixedly connected to the oil storage cylinder, providing elastic supporting force for the pressure rod.

[0013] Preferably, a sealing groove is provided on the surface of the sealing seat, and a hollow sealing ring is adhered to the inside of the sealing groove. An inflation tube is connected to the surface of the hollow sealing ring, and one end of the inflation tube extends to the outside of the valve body and is installed with an air valve, thereby further filling the gap between the sealing seat and the sphere and improving the sealing ring of the valve body in the closed state.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By pressing the pressure rod to overcome the elastic force of the spring and act on the arc-shaped diaphragm, the arc-shaped diaphragm bends downward to generate pressure. The lubricating oil inside the oil storage cylinder is discharged into the oil dripping pipe through the oil outlet under the action of pressure. The oil dripping pipe drips the lubricating oil into the driving mechanism to lubricate the driving mechanism, thereby reducing the friction and wear of the driving mechanism, extending the service life, and preventing corrosion and rust. After the pressure rod is released, the pressure rod moves up to the original position under the elastic action of the spring, and drives the arc-shaped diaphragm to return to its original state, and the lubricating oil is no longer discharged. Due to the setting of the baffle and the tension of the lubricating oil itself, it is ensured that the lubricating oil will not be discharged under the action of no pressure; Since the filter screen in the liquid inlet is connected with the card slot on the surface of the positioning seat through the card block, during the use of the ball valve, the filter screen filters the circulating medium and filters out the impurities inside it, thereby preventing the ball valve from being blocked. In addition, the filter screen can be disassembled and cleaned to ensure its filtering effect; Since a hollow sealing ring is provided in the sealing groove on the surface of the sealing seat, the air valve is opened and air is inflated into the hollow sealing ring through the inflation tube, so that the hollow sealing ring expands and fits tightly with the sphere, further filling the gap between the sealing seat and the sphere, thereby improving the sealing performance of the pressure reducing valve in the closed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the valve closed state of the present invention; Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the cross-sectional enlarged structure of the oil storage cylinder of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 6 For the present invention Figure 1 Enlarged structural diagram at point C in the middle.

[0016] In the figure: 1. valve body; 2. sphere; 201. circulation channel; 202. exhaust hole; 3. valve stem; 4. driving mechanism; 5. oil storage cylinder; 6. packing; 7. sealing seat; 8. liquid inlet; 9. liquid outlet; 10. positioning seat; 11. slot; 12. filter; 13. block; 14. oil outlet; 15. oil drip tube; 16. oil filling tube; 17. sealing cover; 18. arc diaphragm; 19. pressure rod; 20. spring; 21. baffle; 22. oil outlet hole; 23. sealing groove; 24. hollow sealing ring; 25. inflation tube; 26. air valve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0019] See also Figure 1-6 , an embodiment provided by the present invention: an intelligent control type fast pressure reducing ball valve, comprising a valve body 1, a ball 2, a valve stem 3, an oil storage cylinder 5 and an arc-shaped diaphragm 18, the ball 2 is arranged inside the valve body 1, and a flow channel 201 is arranged inside the ball 2, and an exhaust hole 202 is arranged on one side of the ball 2, and sealing seats 7 are fixed inside the valve body 1 on both sides of the ball 2, the valve stem 3 is arranged at the top of the valve body 1 above the ball 2, and the bottom end of the valve stem 3 is fixedly connected to the ball 2, and a packing 6 is arranged on the top of the valve body 1 outside the valve stem 3; A driving mechanism 4 is installed at the top of the valve body 1; Specifically, by operating the driving mechanism 4 to drive the valve stem 3 to rotate, the valve stem 3 drives the ball 2 to rotate to achieve the opening of the ball valve. The pressure reducing ball valve changes the flow rate of the liquid in the pipeline through the rotation of the ball 2, thereby achieving the effect of pressure reduction; The oil storage cylinder 5 is installed on one side of the top of the driving mechanism 4, and the arc-shaped diaphragm 18 is fixed on the top of the oil storage cylinder 5. A pressure rod 19 is penetrated through the top of the oil storage cylinder 5, and the bottom end of the pressure rod 19 extends to the inside of the oil storage cylinder 5 and is connected to the arc-shaped diaphragm 18. An oil outlet 14 is provided on one side of the bottom end of the oil storage cylinder 5, and the bottom end of the oil outlet 14 is connected to an oil dripping pipe 15, and the bottom end of the oil dripping pipe 15 extends to the inside of the driving mechanism 4; Specifically, the pressing rod 19 is pressed to overcome the elastic force of the spring 20 and act on the arc diaphragm 18, and the arc diaphragm 18 bends downward to generate pressure. Under the action of pressure, the lubricating oil inside the oil storage cylinder 5 is discharged into the oil dripping pipe 15 through the oil outlet 14, and the oil dripping pipe 15 drips the lubricating oil into the driving mechanism 4 to lubricate the driving mechanism 4, thereby reducing the friction and wear of the driving mechanism 4, extending the service life, and preventing corrosion and rust. After the pressure rod 19 is released, the pressure rod 19 moves up to the original position under the elastic action of the spring 20, and drives the arc-shaped diaphragm 18 to return to its original state, and the lubricating oil is no longer discharged. Due to the setting of the baffle 21 and the tension of the lubricating oil itself, it is ensured that the lubricating oil will not be discharged under the action of no pressure; A liquid inlet 8 is provided at one end of the valve body 1, and a liquid outlet 9 is provided at the other end of the valve body 1; A positioning seat 10 is fixed on the inner wall of the liquid inlet 8, and a clamping groove 11 is provided on the surface of the positioning seat 10; A filter screen 12 is disposed inside the liquid inlet 8, and a clamping block 13 is fixed on the outer wall of the filter screen 12, and the clamping block 13 is tightly clamped with the clamping groove 11; Specifically, since the filter screen 12 in the liquid inlet 8 is engaged with the card slot 11 on the surface of the positioning seat 10 through the card block 13, during the use of the ball valve, the filter screen 12 filters the circulating medium and filters out the impurities inside it, thereby preventing the ball valve from being blocked, and the filter screen 12 can be disassembled and cleaned to ensure its filtering effect; The driving end of the driving mechanism 4 is fixedly connected to the top end of the valve stem 3; A baffle 21 is fixed inside the oil outlet 14, and an oil outlet hole 22 is provided at the center of the baffle 21; A refueling pipe 16 is installed on the outer wall of the top of the oil storage cylinder 5, and a sealing cap 17 is threadedly connected to the top of the refueling pipe 16; The outside of the pressure rod 19 is sleeved with a spring 20, and the top end of the spring 20 is fixedly connected to the pressure rod 19, and the bottom end of the spring 20 is fixedly connected to the oil storage cylinder 5; The surface of the sealing seat 7 is provided with a sealing groove 23, and a hollow sealing ring 24 is adhered inside the sealing groove 23. The surface of the hollow sealing ring 24 is connected with an air filling tube 25, and one end of the air filling tube 25 extends to the outside of the valve body 1 and is installed with an air valve 26. Specifically, since a hollow sealing ring 24 is provided in the sealing groove 23 on the surface of the sealing seat 7, the air valve 26 is opened and air is inflated into the hollow sealing ring 24 through the inflation tube 25, so that the hollow sealing ring 24 expands and fits tightly with the sphere 2, further filling the gap between the sealing seat 7 and the sphere 2, thereby improving the sealing performance of the pressure reducing valve in the closed state.

[0020] When the embodiment of the present application is in use: first, the driving mechanism 4 is operated to drive the valve stem 3 to rotate, and the valve stem 3 drives the ball 2 to rotate to realize the opening of the ball valve. The pressure reducing ball valve changes the flow rate of the liquid in the pipeline through the rotation of the ball 2, thereby achieving the effect of pressure reduction. Then, after using it for a period of time, the pressure rod 19 is pressed to overcome the elastic force of the spring 20 and act on the arc diaphragm 18. The arc diaphragm 18 bends downward to generate pressure. The lubricating oil inside the oil storage cylinder 5 is discharged into the oil dripping pipe 15 through the oil outlet 14 under the action of pressure. The oil dripping pipe 15 drips the lubricating oil into the driving mechanism 4 to lubricate the driving mechanism 4, thereby reducing the friction and wear of the driving mechanism 4, extending its service life, and preventing corrosion and rust. After the pressure rod 19 is released, the pressure rod 19 moves up to its original position under the elastic action of the spring 20, and drives The arc-shaped diaphragm 18 returns to its original state, and the lubricating oil is no longer discharged. Due to the setting of the baffle 21 and the tension of the lubricating oil itself, it is ensured that the lubricating oil will not be discharged under the action of no pressure. In addition, since the filter screen 12 in the liquid inlet 8 is clamped with the clamping groove 11 on the surface of the positioning seat 10 through the clamping block 13, during the use of the ball valve, the filter screen 12 filters the circulating medium and filters out the impurities inside it, thereby preventing the ball valve from being blocked, and the filter screen 12 can be disassembled and cleaned to ensure its filtering effect. In addition, since a hollow sealing ring 24 is provided in the sealing groove 23 on the surface of the sealing seat 7, the air valve 26 is opened, and the hollow sealing ring 24 is inflated through the inflation pipe 25, so that the hollow sealing ring 24 expands and fits tightly with the sphere 2, further filling the gap between the sealing seat 7 and the sphere 2, thereby improving the sealing of the pressure reducing valve in the closed state.

[0021] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. An intelligent control type rapid pressure reducing ball valve, characterized in that: The invention comprises a valve body (1), a sphere (2), a valve stem (3), an oil storage cylinder (5) and an arc-shaped diaphragm (18), wherein the sphere (2) is arranged inside the valve body (1), and a flow channel (201) is arranged inside the sphere (2), and an exhaust hole (202) is arranged on one side inside the sphere (2), sealing seats (7) are fixed inside the valve body (1) on both sides of the sphere (2), the valve stem (3) is arranged on the top of the valve body (1) above the sphere (2), and the bottom end of the valve stem (3) is fixedly connected to the sphere (2), and a packing (7) is arranged on the top of the valve body (1) outside the valve stem (3). 6), a driving mechanism (4) is installed at the top of the valve body (1), the oil storage cylinder (5) is installed on one side of the top of the driving mechanism (4), the arc-shaped diaphragm (18) is fixed on the top of the oil storage cylinder (5), a pressure rod (19) is passed through the top of the oil storage cylinder (5), and the bottom end of the pressure rod (19) extends to the inside of the oil storage cylinder (5) and is connected to the arc-shaped diaphragm (18), an oil outlet (14) is provided on one side of the bottom end of the oil storage cylinder (5), and the bottom end of the oil outlet (14) is connected to an oil dripping tube (15), and the bottom end of the oil dripping tube (15) extends to the inside of the driving mechanism (4).

2. According to claim 1, the intelligent control type rapid pressure reducing ball valve is characterized by: A liquid inlet (8) is provided at one end inside the valve body (1), and a liquid outlet (9) is provided at the other end inside the valve body (1).

3. According to claim 2, the intelligent control type rapid pressure reducing ball valve is characterized in that: A positioning seat (10) is fixed on the inner wall of the liquid inlet (8), and a clamping groove (11) is provided on the surface of the positioning seat (10).

4. The intelligent control type rapid pressure reducing ball valve according to claim 2 is characterized in that: A filter screen (12) is disposed inside the liquid inlet (8), and a clamping block (13) is fixed on the outer wall of the filter screen (12), and the clamping block (13) is tightly clamped with the clamping groove (11).

5. The intelligent control type rapid pressure reducing ball valve according to claim 1 is characterized in that: The driving end of the driving mechanism (4) is fixedly connected to the top end of the valve stem (3).

6. The intelligent control type rapid pressure reducing ball valve according to claim 1 is characterized in that: A baffle (21) is fixed inside the oil outlet (14), and an oil outlet hole (22) is provided at a central position inside the baffle (21).

7. The intelligent control type rapid pressure reducing ball valve according to claim 1 is characterized in that: A refueling pipe (16) is installed on the outer wall of the top of the oil storage cylinder (5), and a sealing cap (17) is threadedly connected to the top end of the refueling pipe (16).

8. The intelligent control type rapid pressure reducing ball valve according to claim 1 is characterized in that: A spring (20) is sleeved on the outside of the pressure rod (19), and the top end of the spring (20) is fixedly connected to the pressure rod (19), and the bottom end of the spring (20) is fixedly connected to the oil storage cylinder (5).

9. The intelligent control type rapid pressure reducing ball valve according to claim 1, characterized in that: The surface of the sealing seat (7) is provided with a sealing groove (23), and a hollow sealing ring (24) is adhered to the interior of the sealing groove (23); the surface of the hollow sealing ring (24) is connected to an inflation tube (25), and one end of the inflation tube (25) extends to the outside of the valve body (1) and is provided with an air valve (26).

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