Three-way confluence butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a three-way confluence butterfly valve which comprises a three-way valve pipe, a valve seat is fixedly installed in the middle of the upper end of the three-way valve pipe, a rotatable three-clack butterfly valve is arranged in the middle of the inside of the three-way valve pipe, and the upper end of the three-clack butterfly valve is connected with the valve seat through a valve rod. When the three-valve butterfly valve is used, the drive knob is manually rotated, the valve rod drives the three-valve butterfly valve to rotate through the bevel gear arranged in the valve seat, fluid in the three-valve pipe is converged, in the process, the drive plate is rotated in advance to drive the small gear to rotate, the small gear drives the annular gear and the limiting gear to rotate, and the three-valve butterfly valve is driven to rotate. When the three-flap butterfly valve is positioned, the stop levers are drawn close, so that the three-flap butterfly valve is clamped and extruded by the stop levers, the three-flap butterfly valve can still be positioned under the impact of high-flow fluid and in the process that the pressure intensity of the pipe end on one side is large, and the confluence flow influence caused by deflection of the valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a three-way converging butterfly valve. Background Art

[0002] Butterfly valve, also known as flap valve, is a simple regulating valve that can be used for the on-off control of low-pressure pipeline media. Its closing member (valve disc or butterfly plate) is a disc that rotates around the valve shaft to achieve the purpose of opening and closing. This valve mainly plays a cutting and throttling role in the pipeline and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.

[0003] Traditional butterfly valves cannot adopt a multi-port confluence mode when used, and their application range is small and their pressure resistance is low. When encountering a large flow rate and a strong pressure, the butterfly valve is easily deflected, making the flow rate unstable. Therefore, those skilled in the art provide a three-way confluence butterfly valve to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a three-way converging butterfly valve, comprising a three-way valve pipe, a valve seat is fixedly installed in the middle of the upper end of the three-way valve pipe, a rotatable three-flap butterfly valve is arranged in the middle of the three-way valve pipe, and a valve stem is used to connect the upper end of the three-flap butterfly valve and the valve seat;

[0005] A seat cavity is symmetrically provided in the middle shell of the three-way valve tube, and a ring tooth is provided in the lower seat cavity, and the ring tooth can rotate in a circle around the limit sleeve; a limit tooth is provided in the upper seat cavity, and the limit tooth can rotate in a circle around the valve stem; a stop rod is symmetrically installed with the center of the inner end surface of the ring tooth and the limit tooth, a small gear is provided in front of the limit tooth and the ring tooth, and a dial is fixedly installed with the center of the outer end surface of the small gear, and the front side of the dial passes through the outer wall of the three-way valve tube.

[0006] Preferably, a driving knob is fixedly installed at the front end of the valve seat, and by rotating the driving knob, the bevel gear arranged inside the valve seat causes the valve stem to drive the three-petal butterfly valve to rotate.

[0007] Preferably, a pressure gauge is fixedly installed on one side of the tube end of the three-way valve tube, and a booster valve tube is fixedly installed on the other side of the tube end, so as to regulate the pressure in the three-way valve tube.

[0008] Preferably, a limiting sleeve is fixedly installed at the lower end of the valve stem, and the limiting sleeve is limitedly arranged in the seat cavity at the lower side, so that the three-petal butterfly valve can rotate stably, so that the flow of the valve body merges.

[0009] Preferably, a positioning seat is arranged on the inner side of the dial, a freely rotatable threaded rod is arranged on the positioning seat, and the lower side of the threaded rod is fixed to the outer wall of the three-way valve tube through a limiting collar seat arranged for limiting.

[0010] Preferably: a threaded sleeve on the threaded rod is provided with a collar nut seat, which can be threadedly engaged with the threaded rod so that the collar nut seat clamps and tightens the dial to prevent the dial from rotating, causing the three-petal butterfly valve to deflect and affecting the flow change of the valve body.

[0011] Technical effects and advantages of the utility model:

[0012] 1. When the utility model is used, the driving knob is manually rotated, and the valve stem drives the three-flap butterfly valve to rotate through the bevel gear arranged inside the valve seat, so that the fluid in the three-way valve pipe merges. In this process, the dial is rotated in advance to drive the pinion to rotate, and the pinion drives the ring gear and the limit gear to rotate, so that the blocking rod is brought closer, so that the blocking rod clamps and squeezes the three-flap butterfly valve, thereby ensuring that the three-flap butterfly valve can still maintain its position under the impact of high-flow fluid and when the pressure at one end of the pipe is relatively large, thereby reducing the impact of the merged flow caused by the deflected valve.

[0013] 2. When the utility model is used, the threaded rod is rotated to engage with the sleeve ring nut seat, so that the sleeve ring nut seat clamps and tightens the dial to prevent the dial from rotating, causing the three-petal butterfly valve to deflect and affect the flow change of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure provided by this application;

[0015] Figure 2 It is a structural schematic diagram of the seat cavity provided by this application;

[0016] Figure 3 It is a structural schematic diagram of a three-flap butterfly valve provided by the present application;

[0017] In the figure: 1. valve seat; 2. drive knob; 3. three-way valve pipe; 4. pressure gauge; 5. boost valve pipe; 6. seat cavity; 7. three-petal butterfly valve; 8. limit sleeve; 9. valve stem; 10. ring gear; 11. limit gear; 12. pinion; 13. dial; 14. positioning seat; 15. threaded rod; 16. limit sleeve ring seat; 17. sleeve ring mother seat; 18. stop rod. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0019] See also Figures 1 to 3 In this embodiment, a three-way converging butterfly valve is provided, including a three-way valve tube 3, a valve seat 1 is fixedly installed in the middle of the upper end of the three-way valve tube 3, a driving knob 2 is fixedly installed in the front end of the valve seat 1, by rotating the driving knob 2, the bevel gear arranged inside the valve seat 1 makes the valve stem 9 drive the three-flap butterfly valve 7 to rotate, a pressure gauge 4 is fixedly installed on one side of the tube end of the three-way valve tube 3, and a booster valve tube 5 is fixedly installed on the other side of the tube end, so as to regulate the pressure in the three-way valve tube 3, a rotatable three-flap butterfly valve 7 is arranged in the middle of the three-way valve tube 3, and the upper end of the three-flap butterfly valve 7 is connected to the valve seat 1 by a valve stem 9;

[0020] A seat cavity 6 is symmetrically provided in the middle shell of the inner tube of the three-way valve tube 3, and a limiting sleeve 8 is fixedly installed at the lower end of the valve stem 9. The limiting sleeve 8 is limitedly placed in the seat cavity 6 on the lower side, and the three-petal butterfly valve 7 can rotate stably, so that the valve body flow merges. A ring tooth 10 is provided in the seat cavity 6 on the lower side, and the ring tooth 10 can rotate in a circle around the limiting sleeve 8. A limiting tooth 11 is provided in the seat cavity 6 on the upper side, and the limiting tooth 11 can rotate in a circle around the valve stem 9. A stop rod 18 is symmetrically installed on the center of the inner side end surface of the ring tooth 10 and the limiting tooth 11, and a small gear 12 is provided on the front side of the limiting tooth 11 and the ring tooth 10. A dial 13 is fixedly installed on the center of the outer side end surface of the small gear 12, and the front side of the dial 13 passes through the outer wall of the three-way valve tube 3;

[0021] A positioning seat 14 is provided on the inner side of the dial 13, and a freely rotatable threaded rod 15 is provided on the positioning seat 14. The lower side of the threaded rod 15 is fixed to the outer wall of the three-way valve tube 3 by a limiting collar seat 16. A collar female seat 17 is threadedly sleeved on the threaded rod 15. The collar female seat 17 can be threadedly engaged with the threaded rod 15 so that the collar female seat 17 clamps and tightens the dial 13 to prevent the dial 13 from rotating, so that the three-petal butterfly valve 7 is deflected, affecting the flow change of the valve body.

[0022] The working principle of the utility model is:

[0023] When the utility model is used, the driving knob 2 is manually rotated, and the valve stem 9 drives the three-flap butterfly valve 7 to rotate through the bevel gear arranged inside the valve seat 1, so that the fluid in the three-way valve pipe 3 merges. In this process, the dial 13 is rotated in advance to drive the pinion 12 to rotate, and the pinion 12 drives the ring gear 10 and the limit gear 11 to rotate, so that the blocking rod 18 is brought together, so that the blocking rod 18 clamps and squeezes the three-flap butterfly valve 7, so as to ensure that under the impact of high-flow fluid and the process of high pressure at one end of the pipe, the three-flap butterfly valve 7 can still maintain its position, reducing the influence of the merged flow caused by the deflected valve, and then the threaded rod 15 is rotated to engage with the ring female seat 17, so that the ring female seat 17 clamps and tightens the dial 13 to prevent the dial 13 from rotating, so that the three-flap butterfly valve 7 deflects and affects the flow change of the valve body.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A three-way converging butterfly valve, comprising a three-way valve pipe (3), characterized in that: A valve seat (1) is fixedly mounted in the middle of the upper end of the three-way valve tube (3), a rotatable three-flap butterfly valve (7) is arranged in the middle of the three-way valve tube (3), and a valve stem (9) is used to connect the upper end of the three-flap butterfly valve (7) and the valve seat (1); A seat cavity (6) is symmetrically provided in the middle shell of the three-way valve tube (3) in the tube, and a ring tooth (10) is provided in the lower seat cavity (6), and the ring tooth (10) can rotate in a circle around the limit sleeve (8); a limit tooth (11) is provided in the upper seat cavity (6), and the limit tooth (11) can rotate in a circle around the valve stem (9); a stop rod (18) is symmetrically installed at the center of the inner end surface of the ring tooth (10) and the limit tooth (11); a small gear (12) is provided in front of the limit tooth (11) and the ring tooth (10); a dial (13) is fixedly installed at the center of the outer end surface of the small gear (12), and the front side of the dial (13) passes through the outer wall of the three-way valve tube (3).

2. A three-way converging butterfly valve according to claim 1, characterized in that: A driving knob (2) is fixedly mounted on the front end of the valve seat (1).

3. A three-way converging butterfly valve according to claim 1, characterized in that: A pressure gauge (4) is fixedly mounted on one side of the tube end of the three-way valve tube (3), and a booster valve tube (5) is fixedly mounted on the other side of the tube end.

4. A three-way converging butterfly valve according to claim 1, characterized in that: A limiting sleeve (8) is fixedly mounted on the lower end of the valve stem (9), and the limiting sleeve (8) is limitedly disposed in the seat cavity (6) on the lower side.

5. The three-way converging butterfly valve according to claim 1, characterized in that: A positioning seat (14) is arranged on the inner side of the dial (13), and a freely rotatable threaded rod (15) is arranged on the positioning seat (14). The lower side of the threaded rod (15) is fixed to the outer wall of the three-way valve pipe (3) through a limiting collar seat (16) arranged for limiting.

6. A three-way converging butterfly valve according to claim 5, characterized in that: The threaded rod (15) is threadedly sleeved with a collar female seat (17).

Images