CN218408558U

CN218408558U - Rubber valve seat for butterfly valve

Info

Publication number: CN218408558U
Application number: CN202222912385.1U
Authority: CN
Inventors: 朱萦海
Original assignee: Shanghai Huaqi Yutai Engineering Material Co ltd
Current assignee: Shanghai Huaqi Yutai Engineering Material Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-31
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a rubber valve seat for a butterfly valve, which comprises a valve mechanism and a clamping mechanism, wherein the clamping mechanism is arranged on the valve mechanism; valve mechanism includes first valve plate, even seat, valve pipe, second valve plate, valve rod and valve clack, even a fixed connection in the bottom of first valve plate, the valve pipe weld in the bottom of even seat, the second valve plate weld in the top of first valve plate. Drive valve rod and valve clack through rotatory handle and rotate, behind the position of regulation valve clack, drive the bull stick through rotatory knob and rotate, drive the fillet of screw and rotate, make it control about in the thread groove, and then drive the bull stick and control, bull stick and knob fixed connection, and the knob rotates with the lantern ring and is connected, therefore can drive the lantern ring in step and remove, and then drive the connecting rod, diaphragm and cardboard remove, when the cardboard removes, can laminate with the dogtooth, the dogtooth closely laminates with the cardboard, make the valve clack fixed, can not produce not hard up.

Description

Rubber valve seat for butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a rubber valve seat for butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. In the butterfly valve, the butt clamp type butterfly valve extrudes the butt clamp through a spring to fix the valve core, so that the use is more.

The common butt clamp type butterfly valve fixes a handle of the valve by extruding the butt clamp through a spring, and under the condition of high pressure, high-pressure liquid or gas in a pipeline easily loosens the soft fixation, so that the sealing effect is influenced. In view of this, we propose a rubber valve seat for a butterfly valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rubber valve seat for butterfly valve to improve the leakproofness of valve.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rubber valve seat for butterfly valve, includes valve mechanism and screens mechanism, screens mechanism install in on the valve mechanism.

Screens mechanism includes handle, thread groove, screw thread piece, bull stick, the lantern ring, connecting rod, diaphragm and cardboard, the handle weld in the top of valve rod, the thread groove is seted up in the handle, screw thread piece threaded connection in the thread groove, the bull stick weld in one side of screw thread piece, the one end of bull stick runs through the handle, the cover is equipped with the lantern ring on the bull stick, the connecting rod with the lantern ring welds mutually, the diaphragm with the connecting rod welds mutually, cardboard fixed connection in on the diaphragm.

Preferably, valve mechanism includes first valve plate, even seat, valve pipe, second valve plate, valve rod and valve clack, even a fixed connection in the bottom of first valve plate, the valve pipe weld in the bottom of even seat, the second valve plate weld in the top of first valve plate, the valve rod rotate connect in on the valve pipe, the valve clack weld in on the valve rod.

Preferably, the outer side wall welding of first valve plate has the dogtooth that is the semi-annular and distributes, the cardboard with the dogtooth meshes mutually.

Preferably, one end of the rotating rod is fixedly connected with a knob, and the knob is rotatably connected with the lantern ring.

Preferably, a sliding groove is formed in the second valve plate, a sliding rod is welded to the connecting rod, one end of the sliding rod penetrates through the second valve plate and is inserted into the sliding groove, a sliding block is connected to the sliding groove in a sliding mode, and the sliding block is welded to the sliding rod.

Preferably, the top welding of second valve plate has the apron, the valve rod with the valve pipe even the seat the second valve plate, the apron all rotates to be connected. And flanges are arranged on two sides of the valve pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the valve rod and the valve clack are driven to rotate through the rotating handle, after the position of the valve clack is adjusted, the rotating rod is driven to rotate through the rotating knob, the thread block is driven to rotate, the thread block is driven to move left and right in the thread groove, and then the rotating rod is driven to move left and right. The rotating rod is fixedly connected with the knob, the knob is connected with the lantern ring in a rotating mode, the lantern ring can be driven to move synchronously, the connecting rod, the transverse plate and the clamping plate are driven to move, the clamping plate can be attached to the convex teeth when moving, the convex teeth are closely attached to the clamping plate, the valve clack is fixed, and looseness cannot be generated. Simultaneously because the dogtooth is the semi-annular and distributes, the cardboard can follow the arbitrary turned angle of handle, therefore the utility model discloses a handle can be at the arbitrary turned angle after-fixing of the semi-ring within range of dogtooth, can adjust the valve clack to the arbitrary angle in semi-ring promptly, can adjust the medium unit flow of flowing through the disk seat according to the angle difference of valve clack, and the valve clack after the regulation is tightly fixed through clamping mechanism, can effectually reduce the valve clack and erode and not hard up probability.

Drawings

Fig. 1 is a perspective view of the valve mechanism of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the structure of the present invention;

fig. 4 is an enlarged schematic view of the structure of the area a in fig. 2 according to the present invention.

In the figure: 11. a first valve plate; 12. connecting a base; 13. a valve tube; 14. a second valve plate; 15. a cover plate; 16. a valve stem; 17. a valve flap; 21. a handle; 22. a thread groove; 23. a thread block; 24. a rotating rod; 25. a collar; 26. a knob; 27. a connecting rod; 28. a slide bar; 29. a slider; 210. a transverse plate; 211. clamping a plate; 212. and (4) convex teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a rubber valve seat for a butterfly valve comprises a valve mechanism and a clamping mechanism, wherein the clamping mechanism is arranged on the valve mechanism; the clamping mechanism is used for clamping the valve rod 16 of the valve mechanism so as to clamp the valve clack 17 and prevent the valve clack 17 from loosening.

The valve mechanism comprises a first valve plate 11, a connecting seat 12, a valve pipe 13, a second valve plate 14, a valve rod 16 and a valve clack 17, wherein the valve clack 17 can also be called a valve core. The core mechanism of the whole valve mechanism is used for blocking the valve pipe 13, the connecting seat 12 is fixedly connected to the bottom of the first valve plate 11, the valve pipe 13 is welded to the bottom of the connecting seat 12, the second valve plate 14 is welded to the top of the first valve plate 11, the valve rod 16 is rotatably connected to the valve pipe 13, and the valve clack 17 is welded to the valve rod 16; the valve flap 17 can be controlled to rotate by rotating the valve rod 16, and the blocking valve pipe 13 can be adjusted.

The clamping mechanism comprises a handle 21, a threaded groove 22, a threaded block 23, a rotating rod 24, a collar 25, a connecting rod 27, a transverse plate 210 and a clamping plate 211. A handle 21 is welded to the top of the valve stem 16, the handle 21 is used for controlling the rotation of the valve stem 16, a thread groove 22 is arranged in the handle 21, and a thread block 23 is connected in the thread groove 22 in a threaded mode. When the screw block 23 rotates, it will move left and right in the screw groove 22, and then drive the rotating rod 24 to move left and right, the rotating rod 24 is fixedly connected with the knob 26, and the knob 26 is rotatably connected with the lantern ring 25, so that the lantern ring 25 can be synchronously driven to move, and then the connecting rod 27, the transverse plate 210 and the clamping plate 211 are driven to move. The rotating rod 24 is welded on one side of the thread block 23, one end of the rotating rod 24 penetrates through the handle 21, a lantern ring 25 is sleeved on the rotating rod 24, and the connecting rod 27 is welded with the lantern ring 25. The transverse plate 210 is welded with the connecting rod 27, and the catch plate 211 is fixedly connected to the transverse plate 210. The outer side wall welding of first valve plate 11 has the dogtooth 212 that is semi-annular distribution, and cardboard 211 meshes with dogtooth 212 mutually. When the clamping plate 211 moves, the clamping plate can be attached to the convex teeth 212, so that the rotating rod 24 is fixed, the handle 21 is prevented from rotating, the handle 21 is effectively clamped, and the valve clack 17 is fixed, because the convex teeth 212 are distributed in a semi-annular shape. Cardboard 211 can follow handle 21 random turned angle, therefore the utility model discloses a handle 21 can be at the arbitrary turned angle after-fixing of the semi-ring within range of dogtooth 212, can adjust valve clack 17 to the intra-annular arbitrary angle of semi-ring promptly, can adjust the medium unit flow of flowing through the disk seat according to valve clack 17's angle difference, and valve clack 17 after the regulation is tightly fixed through clamping mechanism, can effectually reduce valve clack 17 and be erodeed and not hard up probability.

Specifically, in this embodiment, one end of the rotating rod 24 is fixedly connected with a knob 26, the knob 26 is rotatably connected with the sleeve ring 25, the knob 26 and the sleeve ring 25 can be attached to each other, and when the knob 26 moves left and right, the sleeve ring 25 is driven to move synchronously.

Specifically, in this embodiment, a sliding groove is formed in the second valve plate 14, a sliding rod 28 is welded to the connecting rod 27, one end of the sliding rod 28 penetrates through the second valve plate 14 and is inserted into the sliding groove, a sliding block 29 is slidably connected to the sliding groove, and the sliding block 29 is welded to the sliding rod 28. The slide bar 28 serves to guide the moving direction of the link 27 to prevent it from being deviated.

In one embodiment, a cover plate 15 is welded on the top of the second valve plate 14, and the valve rod 16 is rotatably connected with the valve pipe 13, the connecting seat 12, the second valve plate 14 and the cover plate 15. The cover plate 15 serves to protect the second valve flap 14. Flanges are installed on both sides of the valve pipe 13. The valve pipe 13 is flange-mounted on the pipe.

The rubber valve seat for a butterfly valve of the present embodiment is used when the handle 21 is used to control the rotation of the valve stem 16. During the use, rotatory knob 26 drives bull stick 24 and rotates, and then drives screw block 23 and rotate, when screw block 23 was rotatory, can make it move about in thread groove 22, and then drives bull stick 24 and moves about, bull stick 24 and knob 26 fixed connection, and knob 26 rotates with lantern ring 25 and is connected, therefore can drive lantern ring 25 in step and remove, and then drive connecting rod 27, diaphragm 210 and cardboard 211 and remove. When the clamping plate 211 moves, the clamping plate 211 is attached to the convex teeth 212, so that the rotating rod 24 is fixed, the handle 21 is prevented from rotating, the handle 21 is effectively clamped, and the valve clack 17 is fixed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a rubber valve seat for butterfly valve, includes valve mechanism and screens mechanism, its characterized in that: the clamping mechanism is arranged on the valve mechanism;

the valve mechanism comprises a valve stem (16);

screens mechanism includes handle (21), thread groove (22), screw thread piece (23), bull stick (24), lantern ring (25), connecting rod (27), diaphragm (210) and cardboard (211), handle (21) weld in the top of valve rod (16), screw thread groove (22) are seted up in handle (21), screw thread piece (23) threaded connection in thread groove (22), bull stick (24) weld in one side of screw thread piece (23), the one end of bull stick (24) is run through handle (21), the cover is equipped with lantern ring (25) on bull stick (24), connecting rod (27) with lantern ring (25) welds mutually, diaphragm (210) with connecting rod (27) welds mutually, cardboard (211) fixed connection in on diaphragm (210).

2. The rubber valve seat for a butterfly valve according to claim 1, wherein: valve mechanism includes first valve plate (11), even seat (12), valve pipe (13), second valve plate (14) and valve clack (17), even seat (12) fixed connection in the bottom of first valve plate (11), valve pipe (13) weld in the bottom of even seat (12), second valve plate (14) weld in the top of first valve plate (11), valve rod (16) rotate connect in on valve pipe (13), valve clack (17) weld in on valve rod (16).

3. The rubber valve seat for a butterfly valve according to claim 2, wherein: the outer side wall welding of first valve plate (11) has protruding tooth (212) that are semi-annular distribution, cardboard (211) with protruding tooth (212) mesh mutually.

4. The rubber valve seat for a butterfly valve according to claim 1, wherein: one end of the rotating rod (24) is fixedly connected with a knob (26), and the knob (26) is rotatably connected with the lantern ring (25).

5. The rubber valve seat for a butterfly valve according to claim 2, wherein: a sliding groove is formed in the second valve plate (14), a sliding rod (28) is welded on the connecting rod (27), one end of the sliding rod (28) penetrates through the second valve plate (14) and is inserted into the sliding groove, a sliding block (29) is connected in the sliding groove in a sliding mode, and the sliding block (29) is welded with the sliding rod (28).

6. The rubber valve seat for a butterfly valve according to claim 2, wherein: the top welding of second valve plate (14) has apron (15), valve rod (16) with valve pipe (13) even seat (12), second valve plate (14) apron (15) all rotate to be connected.

7. The rubber valve seat for a butterfly valve according to claim 2, wherein: and flanges are arranged on two sides of the valve pipe (13).