CN216618571U

CN216618571U - Butterfly valve with dustproof mechanism

Info

Publication number: CN216618571U
Application number: CN202121652433.7U
Authority: CN
Inventors: 侯义
Original assignee: Fengcheng Hanyang Industrial Co ltd
Current assignee: Fengcheng Hanyang Industrial Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-05-27
Anticipated expiration: 2031-07-20

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a dustproof mechanism, which comprises a handle and a worm, wherein the worm is fixedly connected to the left end of the handle, a transmission mechanism is arranged on the outer side of the left end of the worm, the lower end of the transmission mechanism is fixedly connected with a valve seat through a bolt, a valve rod is rotatably connected to the inner part of the valve seat, a valve plate is fixedly connected to the middle part of the outer side of the valve rod, an end cover is fixedly connected to the middle part of the lower end of the valve seat through a bolt, and a sealing gasket is arranged between the end cover and the valve seat; according to the butterfly valve, the end cover, the sealing washer, the pressing ring, the pressing spring, the outer pressing ring, the dustproof sleeve, the inner pressing ring, the first sealing ring, the second sealing ring and the sealing filler are arranged, so that the valve rod is convenient to assemble and disassemble, a bearing at the end part of the valve seat is convenient to lubricate, the butterfly valve is beneficial to daily use and maintenance, meanwhile, the butterfly valve has the functions of dust prevention and dust prevention, good sealing between the valve seat and the valve rod can be realized, the sealing performance of the butterfly valve is improved, and the service life of the butterfly valve is prolonged.

Description

Butterfly valve with dustproof mechanism

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a dustproof mechanism.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (valve clack or butterfly plate) as a disc and rotating around a valve shaft to achieve opening and closing.

Because the butterfly valve is often applied to in high temperature and the dusty environment, ordinary butterfly valve does not set up dustproof mechanism mostly, and long-term back of using, the dust is inside entering into the butterfly valve easily by the gap department of the valve rod of butterfly valve and disk seat, leads to inside corrosion, influences its performance, makes the life reduction of butterfly valve, consequently, provides a butterfly valve with dustproof mechanism to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a butterfly valve with a dust-proof mechanism to solve the above problems.

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

the utility model provides a butterfly valve with dustproof mechanism, includes handle and worm, handle left end fixedly connected with worm, the worm left end outside is equipped with drive mechanism, the drive mechanism lower extreme passes through bolt fixedly connected with disk seat, the inside rotation of disk seat is connected with the valve rod, valve rod outside middle part fixedly connected with valve plate, bolt fixedly connected with end cover is passed through at disk seat lower extreme middle part, be equipped with seal ring between end cover and the disk seat.

Preferably, the inboard fixedly connected with clamping ring of disk seat, the equal fixedly connected with pressure spring of clamping ring upper end and lower extreme, pressure spring outer end fixedly connected with outer clamping ring, the terminal surface fixedly connected with dirt proof boot in the outer clamping ring, and the dirt proof boot outside rubber material constitutes, clamping ring in the dirt proof boot other end fixedly connected with, inboard and the valve rod fixed connection of inner clamping ring.

Preferably, the lower part of the outer side of the valve rod and the upper part of the outer side of the valve rod are both fixedly connected with bearings, and the outer sides of the bearings are fixedly connected with the valve seat.

Preferably, inner bearing retainer rings are symmetrically arranged on the outer side of the valve rod, first sealing rings are fixedly connected to the outer sides of the inner bearing retainer rings, and the outer sides of the first sealing rings are rotatably connected with the valve seat.

Preferably, outer retaining rings are symmetrically arranged on the outer sides of the inner compression rings, the inner sides of the outer retaining rings are fixedly connected with the valve rod, second sealing rings are fixedly connected to the outer sides of the outer retaining rings, and the outer sides of the second sealing rings are rotatably connected with the valve seat.

Preferably, a sealing filler is filled between the inner retainer ring and the outer retainer ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the integral structure of the valve seat is changed into a detachable combined structure through the arranged end cover and the arranged sealing washer, so that the valve rod is convenient to assemble and disassemble, and meanwhile, the bearing at the end part of the valve seat is convenient to lubricate, and the valve seat is beneficial to daily use and maintenance;

2. according to the utility model, through the arrangement of the pressing ring, the pressing spring, the outer pressing ring, the dustproof sleeve, the inner pressing ring, the first sealing ring, the second sealing ring and the sealing filler, the dustproof sleeve made of rubber not only can play a role in dust prevention and dust prevention, but also has good torsion resistance, when the valve plate is opened and closed, the dustproof sleeve deforms through the dustproof sleeve, so that good dustproof performance is realized, the outer pressing ring can be tightly attached to the valve seat through the pressing spring, the pressing spring is fixedly pressed through the pressing ring, meanwhile, the inner bearing retainer ring, the first sealing ring, the second sealing ring and the outer retainer ring are arranged between the valve rod and the valve seat, the sealing filler is filled between the inner bearing retainer ring and the outer retainer ring, good sealing between the valve seat and the valve rod can be realized, the sealing performance of the butterfly valve is improved, and the service life of the butterfly valve is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the valve seat of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at point A in accordance with the present invention;

fig. 4 is a perspective view of the installation structure of the dust boot of the present invention.

In the figure: 1-handle, 2-worm, 3-transmission mechanism, 4-valve seat, 5-valve rod, 6-valve plate, 7-end cover, 8-sealing washer, 9-pressing ring, 10-pressing spring, 11-outer pressing ring, 12-dust-proof sleeve, 13-inner pressing ring, 14-bearing, 15-inner bearing retainer ring, 16-first sealing ring, 17-outer retainer ring, 18-second sealing ring and 19-sealing filler.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a butterfly valve with dustproof mechanism, includes handle 1 and

worm

2, and 1 left end fixedly connected with worm 2 of handle, the 2 left end outsides of worm are equipped with

drive mechanism

3, and 3 lower extremes of drive mechanism pass through bolt fixedly connected with

disk seat

4, and 4 inside rotations of disk seat are connected with

valve rod

5, and 5 outside middle parts of valve rod are fixedly connected with

valve plate

6, and 4 lower extremes of disk seat middle parts pass through bolt fixedly connected with end cover 7, are equipped with seal ring 8 between end cover 7 and the disk seat.

A pressing ring 9 is fixedly connected to the inner side of the valve seat 4, a pressing spring 10 is fixedly connected to the upper end and the lower end of the pressing ring 9, an outer pressing ring 11 is fixedly connected to the outer end of the pressing spring 10, a dust-proof sleeve 12 is fixedly connected to the inner end face of the outer pressing ring 11, the outer side of the dust-proof sleeve 12 is made of rubber, an inner pressing ring 13 is fixedly connected to the other end of the dust-proof sleeve 12, the inner side of the inner pressing ring 13 is fixedly connected to the valve rod 5, bearings 14 are fixedly connected to the outer side of the valve rod 5, inner bearing retainer rings 15 are symmetrically arranged on the outer side of the valve rod 5, a first sealing ring 16 is fixedly connected to the outer side of the inner bearing retainer ring 15, the outer side of the first sealing ring 16 is rotatably connected to the valve seat 4, outer retainer rings 17 are symmetrically arranged on the outer sides of the inner pressing ring 13, the inner side of the outer retainer rings 17 is fixedly connected to the valve rod 5, a second sealing ring 18 is fixedly connected to the outer side of the outer retainer ring 17, and the outer side of the second sealing ring 18 is rotatably connected to the valve seat 4, and a sealing packing 19 is filled between the inner bearing retainer 15 and the outer retainer 17.

The working process comprises the following steps: the end cover 7 is arranged at the bottom of the valve seat 4, the integral structure of the valve seat 4 is changed into a detachable combined structure, the valve rod 5 can be conveniently assembled and disassembled, meanwhile, the bearing 14 at the end part of the valve seat 4 can be conveniently lubricated, the daily use and maintenance are facilitated, the dustproof sleeve 12 made of rubber is arranged, the dustproof function can be achieved, meanwhile, the rubber has good torsion resistance, when the valve plate 6 is opened and closed, the dustproof sleeve 12 deforms through itself so as to achieve good dustproof performance, the compression spring 10 is arranged to enable the outer ring 11 to be tightly attached to the valve seat 4, the compression spring 10 is fixedly compressed through the compression ring 9, the inner bearing retainer ring 15, the first sealing ring 16, the second sealing ring 18 and the outer retainer ring 17 are arranged between the valve rod 5 and the valve seat 4, and the sealing filler 19 is filled between the inner bearing retainer ring 15 and the outer retainer ring 17, good sealing between the valve seat 4 and the valve rod 5 can be realized, and the sealing performance of the butterfly valve is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a butterfly valve with dustproof mechanism, includes handle (1) and worm (2), its characterized in that: handle (1) left end fixedly connected with worm (2), worm (2) left end outside is equipped with drive mechanism (3), drive mechanism (3) lower extreme passes through bolt fixedly connected with disk seat (4), disk seat (4) inside rotation is connected with valve rod (5), valve rod (5) outside middle part fixedly connected with valve plate (6), disk seat (4) lower extreme middle part passes through bolt fixedly connected with end cover (7), be equipped with seal ring (8) between end cover (7) and the disk seat.

2. The butterfly valve with a dust-proof mechanism according to claim 1, wherein: disk seat (4) inboard fixedly connected with clamping ring (9), the equal fixedly connected with pressure spring (10) of clamping ring (9) upper end and lower extreme, pressure spring (10) outer end fixedly connected with outer clamping ring (11), terminal surface fixedly connected with dirt proof boot (12) in outer clamping ring (11), and dirt proof boot (12) outside rubber material constitutes, clamping ring (13) in dirt proof boot (12) other end fixedly connected with, inboard and valve rod (5) fixed connection of clamping ring (13).

3. The butterfly valve with a dust-proof mechanism according to claim 1, wherein: the lower part of the outer side of the valve rod (5) and the upper part of the outer side are both fixedly connected with bearings (14), and the outer side of each bearing (14) is fixedly connected with the valve seat (4).

4. The butterfly valve with a dust-proof mechanism according to claim 2, wherein: interior retaining ring (15) have been seted up to valve rod (5) outside symmetry, the first sealing ring (16) of interior retaining ring (15) outside fixedly connected with, the first sealing ring (16) outside is connected with disk seat (4) rotation.

5. The butterfly valve with a dust-proof mechanism according to claim 4, wherein: outer retaining ring (17) have been seted up to interior clamping ring (13) outside symmetry, outer retaining ring (17) inboard and valve rod (5) fixed connection, outer retaining ring (17) outside fixedly connected with second sealing ring (18), the second sealing ring (18) outside is rotated with disk seat (4) and is connected.

6. The butterfly valve with a dust-proof mechanism according to claim 5, wherein: and a sealing filler (19) is filled between the inner bearing retainer ring (15) and the outer retainer ring (17).