CN216382624U

CN216382624U - Double-seal water inlet butterfly valve

Info

Publication number: CN216382624U
Application number: CN202122345389.1U
Authority: CN
Inventors: 霍家俊
Original assignee: Jnt Valve Group Co ltd
Current assignee: Jnt Valve Group Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-26
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a double-seal water inlet butterfly valve, which relates to the technical field of butterfly valves and comprises a valve body, a valve seat, a driving assembly, a valve rod and a valve plate, wherein two connecting seats are symmetrically and fixedly connected to two ends in the valve body, a sealing surface is arranged on each connecting seat, an annular groove and a multiple sealing ring are arranged on the valve plate, a containing groove is arranged in each connecting seat, rubber rings are respectively and fixedly connected to two sides of the valve plate, one side of each rubber ring, which is exposed outside the valve plate and is close to one side of the sealing surface, is fixedly connected with a sealing block, and the sealing block is in contact with the sealing surface. When the valve plate rotated along with the valve rod, the multiple sealing washer of fixed connection in the annular of valve plate rotated thereupon, and then realized a heavy sealed work through mutually supporting of holding tank on multiple sealing washer and the connecting seat, and the impact of rivers makes the rubber circle on the valve plate discover deformation, and then makes the sealed piece with rubber circle fixed connection extrude the sealed face on the connecting seat, and then realizes the double sealed work.

Description

Double-seal water inlet butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a double-seal water inlet 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 double-seal type butterfly valve of intaking that application number is CN2019211833619 discloses, including valve body, disk seat, a support cylinder, flange joint seat, support and actuating mechanism, wherein, the disk seat inlays and locates in the valve body, a support cylinder body sets up in the top of valve body, the flange joint seat sets up in the top of a support cylinder. When the existing butterfly valve works, the sealing work between the valve plate and the valve seat is simple, so that the sealing effect of the butterfly valve is poor, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a double-seal water inlet butterfly valve.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a double-seal water inlet butterfly valve comprises a valve body and a valve seat arranged on the valve body, wherein a driving assembly is arranged on the valve seat, a valve rod is fixedly connected with the output end of the driving assembly, the valve rod penetrates through the valve body and is rotatably connected with the valve body, a valve plate fixedly connected with the valve rod is arranged in the valve body, two connecting seats are symmetrically and fixedly connected with two ends in the valve body, a sealing surface in contact with the edge of the valve plate is arranged on each connecting seat, an annular groove is formed in each valve plate, multiple sealing rings are arranged in each annular groove and extend into each connecting seat, a containing groove for containing the multiple sealing rings is formed in each connecting seat, rubber rings are respectively and fixedly connected to two sides of the valve plate, one side of each rubber ring is exposed outside the valve plate, one side of each rubber ring extends to be close to the sealing surface, and one side of each rubber ring, which is close to the sealing surface, is fixedly connected with a sealing block, the seal block is in contact with the seal face.

As a further scheme of the utility model, two ends of the valve seat are provided with sealing components, and the sealing components are rotatably connected with the valve rod.

As a still further aspect of the present invention, the sealing surface is provided with a slope.

As a further proposal of the utility model, the side of the valve plate and the sealing block close to the sealing surface is provided with mutually adaptive slopes.

As a further scheme of the utility model, a plurality of balls are symmetrically and annularly arranged on two sides of the valve plate close to the valve block respectively, rolling grooves for the balls to roll are formed in the valve plate, and the balls are connected with the connecting seat in a sliding mode.

As a further proposal of the utility model, two annular grooves for rolling a plurality of balls are arranged on the connecting seat.

The embodiment of the utility model provides a double-seal water inlet butterfly valve, which has the beneficial effects that:

when the valve plate rotates along with the valve rod, the multiple sealing rings fixedly connected in the ring grooves of the valve plate rotate along with the valve rod, and then the multiple sealing rings are matched with the accommodating grooves in the connecting seat to realize one-time sealing work, and the rubber rings on the valve plate are deformed due to the impact of water flow, so that the sealing blocks fixedly connected with the rubber rings extrude the sealing surfaces on the connecting seat, and further the double-sealing work is realized, so that the effective sealing work of the butterfly valve is realized through the actions of the multiple sealing rings and the sealing blocks, the sealing performance of the butterfly valve is greatly enhanced, and the practicability is stronger; when the valve plate rotates, six balls roll in the roll groove of the valve plate, the balls slide relative to the connecting seats, and then stable rotation of the valve plate between the two connecting seats is realized through the arrangement of the balls.

Drawings

Fig. 1 is a front view of a dual seal butterfly water inlet valve provided in the present application.

Fig. 2 is a schematic structural diagram of a double-seal water inlet butterfly valve.

Fig. 3 is a partially enlarged structural view of a portion a in fig. 2 of a double-sealed water inlet butterfly valve.

In the figure: 1. a valve body; 2. a valve seat; 3. a drive assembly; 4. a valve stem; 5. a valve plate; 6. a connecting seat; 7. a seal assembly; 8. a sealing surface; 9. a ring groove; 10. multiple sealing rings; 11. accommodating grooves; 12. a ball bearing; 13. rolling a groove; 14. an annular groove; 15. a rubber ring; 16. and (6) sealing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1, 2 and 3, for the structure diagram of a dual-seal butterfly valve with water inlet provided by an embodiment of the present application, including a valve body 1 and a valve seat 2 disposed on the valve body 1, a driving component 3 is disposed on the valve seat 2, the driving component 3 is a prior art, the detailed structure and model are not repeated herein, an output end of the driving component 3 is fixedly connected with a valve rod 4, the valve rod 4 penetrates through the valve body 1 and is rotatably connected therewith, a valve plate 5 fixedly connected with the valve rod 4 is disposed in the valve body 1, the driving component rotates the valve rod 4 in the valve seat 2, and further rotates the valve plate 5 fixedly connected with the valve rod 4 in the valve body 1, so as to realize normal operation of the butterfly valve, two connecting seats 6 are symmetrically and fixedly connected with two ends in the valve body 1, a sealing surface 8 contacting with an edge of the valve plate 5 is disposed on the connecting seat 6, a ring groove 9 is disposed on the valve plate 5, and a multiple sealing ring 10 is disposed in the ring groove 9, multiple sealing ring 10 extends into connecting seat 6, a containing groove 11 for containing multiple sealing ring 10 is arranged in connecting seat 6, when valve plate 5 rotates along with valve rod 4, multiple sealing ring 10 fixedly connected in ring groove 9 of valve plate 5 rotates along with it, and then a double sealing work is realized by mutual matching of multiple sealing ring 10 and containing groove 11 on connecting seat 6, two sides of valve plate 5 are respectively and fixedly connected with rubber ring 15, one side of rubber ring 15 is exposed outside valve plate 5, one side of rubber ring 15 extends to be close to sealing surface 8, one side of rubber ring 15 close to sealing surface 8 is fixedly connected with sealing block 16, sealing block 16 is contacted with sealing surface 8, when valve plate 5 works, impact of water flow makes rubber ring 15 on valve plate 5 find deformation, and then sealing block 16 fixedly connected with rubber ring 15 extrudes sealing surface 8 on connecting seat 6, and further realizes double sealing work, thereby realizing the effective sealing work of the butterfly valve through the actions of the multiple sealing rings 10 and the sealing block 16.

This embodiment is when the in-service use, drive assembly makes 4 rotations of valve rod in the disk seat 2, and then make and rotate in valve body 1 with 4 fixed connection's of valve rod valve plate 5, and then realize the normal work of butterfly valve, when valve plate 5 rotates along with valve rod 4, multiple sealing washer 10 of fixed connection in annular 9 of valve plate 5 rotates along with it, and then realize a heavy sealed work through the mutually supporting of holding tank 11 on multiple sealing washer 10 and the connecting seat 6, and at valve plate 5 during operation, the impact of rivers makes 15 discoveries the deformation of rubber circle on the valve plate 5, and then make and extrude sealed face 8 on the connecting seat 6 with 15 fixed connection's of rubber circle sealing block 16, and then realize the work of two-fold sealing, thereby realize the effective sealing work of butterfly valve through the effect of multiple sealing washer 10 and sealing block 16.

In one aspect of this embodiment, as shown in fig. 3, the two ends of the valve seat 2 are provided with sealing assemblies 7, the sealing assemblies 7 are rotatably connected with the valve rod 4, and the sealing assemblies 7 comprise sealing rings and mechanical seals for sealing the joint between the valve rod 4 and the valve body 1 to prevent leakage.

Further, as shown in fig. 3, the sealing surface 8 is provided with a slope, so that the valve plate 5 can rotate more stably.

As shown in fig. 3, as a preferred embodiment of the present application, the valve plate 5 and the side of the sealing block 16 close to the sealing surface 8 are provided with mutually adaptive slopes, so as to realize stable connection work with the sealing surface 8 of the connecting seat 6.

As shown in fig. 3, in a preferred case of the present embodiment, six balls 12 are respectively and symmetrically arranged on two sides of the valve plate 5 close to the valve rod 4 in an annular shape, a rolling groove 13 for the balls 12 to roll is arranged on the valve plate 5, the balls 12 are slidably connected with the connecting base 6, when the valve plate 5 rotates, the six balls 12 roll in the rolling groove 13 of the valve plate 5, the balls 12 slide relative to the connecting base 6, and further, the stable rotation of the valve plate 5 between the two connecting bases 6 is realized through the arrangement of the balls 12.

Furthermore, as shown in fig. 3, two annular grooves 14 for six balls 12 to roll are formed on the connecting base 6, and then the rotating balls 12 are received by the annular grooves 14, so that stable relative rotation between the balls 12 and the valve plate 5 is realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a double containment butterfly valve of intaking, includes valve body (1) and sets up disk seat (2) on valve body (1), be equipped with drive assembly (3) on disk seat (2), drive assembly (3) output end fixedly connected with valve rod (4), valve rod (4) run through valve body (1) and rotate with it and be connected, be equipped with valve plate (5) with valve rod (4) fixed connection in valve body (1), its characterized in that, two connecting seats (6) of both ends symmetry fixedly connected with in valve body (1), be equipped with on connecting seat (6) with valve plate (5) edge contact's sealed face (8), be equipped with annular (9) on valve plate (5), be equipped with multiple sealing washer (10) in annular (9), multiple sealing washer (10) extend to in connecting seat (6), be equipped with holding tank (11) that hold multiple sealing washer (10) in connecting seat (6), valve plate (5) both sides fixedly connected with rubber circle (15) respectively, one side of rubber circle (15) is exposed outside valve plate (5), one side of rubber circle (15) extends to and is close to sealed face (8), one side fixedly connected with seal block (16) that rubber circle (15) is close to sealed face (8), seal block (16) and sealed face (8) contact.

2. The dual seal butterfly valve for water intake according to claim 1, wherein the valve seat (2) is provided with a sealing member (7) at both ends, the sealing member (7) being rotatably connected to the valve stem (4).

3. Double seal butterfly water inlet valve according to claim 1, characterized in that the sealing surface (8) is provided with a slope.

4. Double seal butterfly valve for water intake according to claim 3, characterized in that the sides of the valve plate (5) and the sealing block (16) close to the sealing surface (8) are provided with mutually adapted slopes.

5. The dual-seal water inlet butterfly valve according to any one of claims 1 to 4, wherein the valve plate (5) is symmetrically provided with a plurality of balls (12) at two sides close to the valve rod (4), the valve plate (5) is provided with rolling grooves (13) for the balls (12) to roll, and the balls (12) are slidably connected with the connecting base (6).

6. The dual seal butterfly valve for water intake according to claim 5, wherein the connecting seat (6) is provided with two annular grooves (14) for rolling of the plurality of balls (12).