CN219317638U

CN219317638U - No trouble butterfly valve

Info

Publication number: CN219317638U
Application number: CN202320255239.8U
Authority: CN
Inventors: 谢文学
Original assignee: Jiangsu Wueccentric Valve Technology Co ltd
Current assignee: Jiangsu Wueccentric Valve Technology Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-07-07
Anticipated expiration: 2033-02-20

Abstract

The utility model relates to a fault-free butterfly valve. Including valve body, valve rod subassembly and butterfly plate, the butterfly plate is a overall structure, is equipped with disk seat and go-between in the valve body, be equipped with annular groove on the go-between, evenly offered a plurality of U-shaped grooves on the inner outer circumference of go-between, U-shaped groove and annular groove intercommunication, evenly be equipped with a plurality of screw holes corresponding with the U-shaped groove on the outer terminal surface of disk seat, be equipped with the bolt of being connected with the screw hole in the U-shaped groove, the nut of bolt is located annular groove, and annular groove's rear end is equipped with the through-hole corresponding with the bolt. The butterfly plate is of an integral structure, the valve seat is fixedly connected with the butterfly plate through the bolts on the connecting ring, the bolts are positioned in the U-shaped grooves on the connecting ring, the bolts are effectively prevented from falling into the pipeline to cause faults, and the safety is high.

Description

No trouble butterfly valve

Technical Field

The utility model relates to a butterfly valve, in particular to a fault-free butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a valve which has a simple structure and can be used for opening and closing low-pressure pipeline media.

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 is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.

The valve rod and the butterfly plate of the existing butterfly valve are connected by a pin or a key, the butterfly plate is provided with a sealing ring, the outer side of the sealing ring is provided with a pressing plate, the pressing plate is connected with the butterfly plate by a screw and clamps the sealing ring, and in the use process, the pin, the key or the screw is easy to loosen and fall off, so that production faults are caused.

The valve seat of the existing butterfly valve is positioned in the valve body and is pressed and fixed through a plurality of bolts positioned on a valve seat pressing plate in the valve body, and in the use process, the bolts are easy to loosen and fall off, so that production faults are caused.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide the fault-free butterfly valve which has a simple structure, adopts an integral structure, does not have the risk of loosening and falling off of bolts on the traditional butterfly plate, is not easy to loosen and fall off of bolts for fixing a valve seat, and is not easy to break.

The technical scheme adopted by the utility model is as follows:

the valve rod assembly comprises an upper valve rod and a lower valve rod which are positioned on the same axis, an upper mounting hole and a lower mounting hole are respectively arranged at the upper end and the lower end of the valve body, the upper valve rod is arranged in the upper mounting hole in an penetrating way through an upper shaft sleeve, the lower valve rod is fixedly arranged in the lower mounting hole, the lower end of the upper valve rod is connected with the upper end of a butterfly plate through a spline, the upper end of the upper valve rod is connected with a driving device, the upper end of the lower valve rod is rotationally connected with the lower end of the butterfly plate through a lower shaft sleeve, the butterfly plate is of an integral structure, a valve seat positioned at one side of the butterfly plate is arranged in the valve body, the outer diameter surface of the butterfly plate is provided with a sealing surface matched with the valve seat, the valve is characterized in that an annular boss positioned at the outer side of the valve seat is arranged in the valve body, a connecting ring positioned in the valve body is arranged at the outer side of the annular boss, an annular groove is formed in the outer diameter surface of the connecting ring, an annular step matched with the annular boss is arranged on the outer surface of the inner end of the connecting ring, a plurality of U-shaped grooves are uniformly formed in the outer circumference of the inner end of the connecting ring, the U-shaped grooves are communicated with the annular groove, a plurality of threaded holes corresponding to the U-shaped grooves are uniformly formed in the outer end face of the valve seat, bolts connected with the threaded holes are arranged in the U-shaped grooves, nuts of the bolts are positioned in the annular groove, and through holes corresponding to the bolts are formed in the rear end of the annular groove.

As a further improvement of the technical scheme, a gap is arranged between the outer end face of the screw rod of the bolt and the inner diameter end face of the annular boss.

As a further improvement of the technical scheme, the bolt is an inner hexagon bolt, and the outer diameter of a nut of the bolt is larger than the width of the U-shaped groove.

As a further improvement of the technical scheme, a stepped hole is formed in the upper portion in the upper mounting hole, a packing seat ring sleeved on the upper valve rod is arranged in the stepped hole, packing located in the stepped hole is arranged on the upper portion of the packing seat ring, a packing gland sleeved on the upper valve rod is arranged at the upper end of the packing, and a packing pressing plate sleeved on the upper valve rod is arranged above the packing gland.

As a further improvement of the technical scheme, the outer end face of the connecting ring is flush with the end face of the valve body.

As a further improvement of the technical scheme, a plurality of connecting holes are formed in the end face of the water inlet end of the valve body.

As a further improvement of the technical scheme, a support is arranged at the upper end of the valve body, the driving device is arranged on the support, and the driving device is a driving motor.

As a further improvement of the technical scheme, a clamping table is arranged in the lower end of the lower mounting hole, a boss matched with the clamping table is arranged at the lower end of the lower valve rod, and a cover plate is mounted at the bottom of the lower mounting hole.

The utility model has the advantages that:

1. the upper valve rod is connected with the butterfly plate by adopting a spline structure, so that the traditional pin or key connection mode is cancelled, the stability and the tightness self-adjusting function are enhanced, the sealing can be better completed, and the risk that the valve pipeline is broken down due to the fact that the traditional pin or key falls off during working is avoided.

2. The butterfly plate adopts the overall structure, does not have traditional clamp plate and sealing ring and relevant bolt, screw connecting piece, effectively prevents bolt, screw connecting piece loosening or drop the trouble that produces.

3. The valve seat is fixedly connected with the valve seat through a plurality of bolts on the connecting ring, nuts of the bolts are located in the annular groove, the annular groove is blocked by the valve body and the outer end, and the bolts are prevented from loosening, falling into the pipeline and failing.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a left side view of fig. 1.

FIG. 3 is a schematic diagram of the connection structure of the connection ring and the valve seat.

Fig. 4 is a partial enlarged view of a in fig. 1.

Fig. 5 is an exploded view of the connection of the connecting ring to the valve seat.

FIG. 6 is a schematic diagram of a prior art valve seat and valve seat platen connection structure.

In the drawing, 1 is a valve body, 2 is a butterfly plate, 3 is an upper valve rod, 4 is a lower valve rod, 5 is an upper shaft sleeve, 6 is a driving device, 7 is a lower shaft sleeve, 8 is a valve seat, 9 is an annular boss, 10 is a connecting ring, 11 is an annular groove, 12 is an annular step, 13 is a U-shaped groove, 14 is a threaded hole, 15 is a bolt, 16 is a through hole, 17 is a packing retainer, 18 is packing, 19 is a packing gland, 20 is a packing pressure plate, 21 is a connecting hole, 22 is a bracket, and 23 is a cover plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The valve rod assembly comprises an upper valve rod 3 and a lower valve rod 4 which are positioned on the same axis, an upper mounting hole and a lower mounting hole are respectively arranged at the upper end and the lower end of the valve body 1, the upper valve rod 3 is arranged in the upper mounting hole in an inserted manner through an upper shaft sleeve 5, the lower valve rod 4 is fixedly arranged in the lower mounting hole, the lower end of the upper valve rod 3 is connected with the upper end of a butterfly plate 2 through a spline, the upper end of the upper valve rod 3 is connected with a driving device 6, the upper end of the lower valve rod 4 is rotationally connected with the lower end of the butterfly plate 2 through a lower shaft sleeve 7, the butterfly plate 2 is of an integral structure, a valve seat 8 positioned at one side of the butterfly plate 2 is arranged in the valve body 1, the outer diameter surface of the butterfly plate 2 is provided with a sealing surface matched with the valve seat 8, the valve is characterized in that an annular boss 9 positioned at the outer side of the valve seat 8 is arranged in the valve body 1, a connecting ring 10 positioned in the valve body 1 is arranged at the outer side of the annular boss 9, an annular groove 11 is arranged on the outer diameter surface of the connecting ring 10, an annular step 12 matched with the annular boss 9 is arranged on the outer surface of the inner end of the connecting ring 10, a plurality of U-shaped grooves 13 are uniformly formed in the outer circumference of the inner end of the connecting ring 10, the U-shaped grooves 13 are communicated with the annular groove 11, a plurality of threaded holes 14 corresponding to the U-shaped grooves 13 are uniformly formed in the outer end face of the valve seat 8, bolts 15 connected with the threaded holes 14 are arranged in the U-shaped grooves 13, nuts of the bolts 15 are positioned in the annular groove 11, and through holes 16 corresponding to the bolts 15 are formed in the rear end of the annular groove 11.

As a further improvement of the above technical solution, a gap is provided between the outer end surface of the screw rod of the bolt 15 and the inner diameter end surface of the annular boss 9.

As a further improvement of the above technical solution, the bolt 15 is an inner hexagon bolt, and the outer diameter of the nut of the bolt 15 is larger than the width of the U-shaped groove.

As a further improvement of the technical scheme, a stepped hole is formed in the upper portion in the upper mounting hole, a packing seat ring 17 sleeved on the upper valve rod 3 is arranged in the stepped hole, packing 18 positioned in the stepped hole is arranged on the upper portion of the packing seat ring 17, a packing gland 19 sleeved on the upper valve rod 3 is arranged at the upper end of the packing 18, and a packing pressing plate 20 sleeved on the upper valve rod 3 is arranged above the packing gland 19.

As a further improvement of the above technical solution, the outer end surface of the connecting ring 10 is flush with the end surface of the valve body 1.

As a further improvement of the above technical solution, a plurality of connecting holes 21 are provided on the end face of the water inlet end of the valve body 1.

As a further improvement of the above technical solution, a bracket 22 is provided at the upper end of the valve body 1, the driving device 6 is mounted on the bracket 22, and the driving device 6 is a driving motor.

As a further improvement of the above technical solution, a clamping table is arranged in the lower end of the lower mounting hole, a boss matched with the clamping table is arranged at the lower end of the lower valve rod 4, and a cover plate 23 is mounted at the bottom of the lower mounting hole.

The lower valve rod is installed in the lower mounting hole from bottom to top, the boss of lower valve rod is blocked by the block, seal the lower valve rod through the apron, the lower extreme and the apron of boss have the gasket, the upper end of lower valve rod is rotated the lower extreme of being connected through lower axle sleeve and butterfly plate, the upper valve rod alternates through last axle sleeve and sets up in the mounting hole, upper valve rod lower extreme and butterfly plate upper end adopt spline connection mode, the driving motor of upper valve rod upper end passes through the upper valve rod and drives the butterfly plate and rotate around the upper valve rod axis, the butterfly plate is overall structure, the risk of traditional butterfly plate upper bolt loosening and droing and cause the pipeline trouble has been avoided, disk seat and go up the go-between and be located the both sides of annular boss, the bolt and the screw hole of disk seat in the last U-shaped inslot of go-between are connected, the instrument is screwed up the bolt through the through-hole of annular groove rear end, the annular groove is closed by valve body and annular groove rear end, the nut of bolt is located annular groove, also can not fall into inside the pipeline after the bolt is not hard up, avoid taking place the trouble.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a no trouble butterfly valve, includes valve body, valve rod subassembly and butterfly plate, the valve rod subassembly is including being in last valve rod and the lower valve rod on same axle center line, the upper end and the lower extreme of valve body are equipped with mounting hole and lower mounting hole respectively, go up the valve rod and alternate to set up in last mounting hole through last axle sleeve, lower valve rod fixed mounting is in lower mounting hole, go up the valve rod lower extreme and be connected with the butterfly plate upper end through the spline, it is connected with drive arrangement to go up the valve rod upper end, the lower valve rod upper end is connected with the butterfly plate lower extreme through lower axle sleeve rotation, a serial communication port is characterized in that, the butterfly plate is a overall structure, be equipped with the disk seat that is located butterfly plate one side in the valve body, the external diameter surface of butterfly plate is equipped with the sealed face that cooperatees with the disk seat, be equipped with the annular boss in the valve seat outside in the valve body, the outside of annular boss is equipped with the go up the go-between, the external diameter surface of go-between is equipped with annular groove, the inner surface of go-between is equipped with the annular step with the annular boss matched with, the inner circumference of go-between, be connected ring's inner circumference is last even seting, U groove and the corresponding screw bolt, the U groove is equipped with a plurality of screw holes and the corresponding screw bolt.

2. The non-faulty butterfly valve of claim 1, wherein a gap is provided between an outer end surface of the shank of the bolt and an inner diameter end surface of the annular boss.

3. The non-faulty butterfly valve of claim 1, wherein the bolt is a socket head cap bolt and the nut outer diameter of the bolt is greater than the width of the U-shaped groove.

4. The fault-free butterfly valve according to claim 1, wherein a stepped hole is formed in the upper portion of the upper mounting hole, a packing retainer sleeved on the upper valve rod is arranged in the stepped hole, packing located in the stepped hole is arranged on the upper portion of the packing retainer, a packing gland sleeved on the upper valve rod is arranged at the upper end of the packing, and a packing pressing plate sleeved on the upper valve rod is arranged above the packing gland.

5. The non-faulty butterfly valve of claim 1, wherein the outer end surface of the connecting ring is flush with the end surface of the valve body.

6. The non-failure butterfly valve of claim 1, wherein the end face of the water inlet end of the valve body is provided with a plurality of connection holes.

7. The non-faulty butterfly valve of claim 1, wherein the upper end of the valve body is provided with a bracket, the driving device is mounted on the bracket, and the driving device is a driving motor.

8. The non-failure butterfly valve according to claim 1, wherein a clamping table is arranged in the lower end of the lower mounting hole, a boss matched with the clamping table is arranged at the lower end of the lower valve rod, and a cover plate is mounted at the bottom of the lower mounting hole.