CN215257882U

CN215257882U - Lever type soft sealing butterfly valve

Info

Publication number: CN215257882U
Application number: CN202121773629.1U
Authority: CN
Inventors: 王增; 张宇卫
Original assignee: Henan Daxin Valve Co ltd
Current assignee: Zhengzhou Zhengvalve Machinery Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-12-21
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to a butterfly valve technical field especially relates to a lever soft sealing butterfly valve. The to-be-solved technical problem of the utility model is that the lever dop of current part lever soft sealing butterfly valve is dismantled inconveniently with the snap ring installation to influence the stability of H type seal cover when receiving water impact with current part lever soft sealing butterfly valve. In order to solve the technical problem, the utility model provides a lever soft sealing butterfly valve, which comprises a valve body, the middle part activity of valve body cup joints H type seal cover. Through with the snap ring joint behind the top of valve body, peg graft the cutting ferrule at the dwang top again, make dwang both sides swing joint's movable block joint carry on spacingly in the inside of cutting ferrule to the cutting ferrule, can make cutting ferrule lateral wall fixed connection's lever dop and snap ring accomplish the installation, through pressing U type depression bar, make U type depression bar bottom lapped trapezoidal piece support and press the movable block to remove, conveniently dismantle, be convenient for install and dismantle, promote work efficiency.

Description

Lever type soft sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a lever soft seal butterfly valve.

Background

The butterfly valve is also called a flap valve and is a regulating valve with simple structure, the butterfly valve which can be used for the on-off control of low-pressure pipeline media is a valve of which the closing member is a disc and which rotates around a valve shaft to open and close, 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, and the lever type soft sealing butterfly valve is one of the valves;

the lever chuck and the snap ring of the existing partial lever type soft seal butterfly valve are usually connected by bolts, so that the installation is complicated during production and assembly, the production efficiency is reduced, and the disassembly is inconvenient after the bolts are corroded when maintenance is needed after long-term use; the existing partial lever type soft seal butterfly valve is only matched and sealed with the valve plate through an internal H-shaped seal sleeve, the sealing effect is reduced due to poor stability when the butterfly valve is impacted by water flow, and the butterfly valve is poor in practicability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a lever soft sealing butterfly valve has solved the lever dop and the snap ring installation of current part lever soft sealing butterfly valve and has dismantled inconveniently and influence the stability of H type seal cover when current part lever soft sealing butterfly valve receives water impact.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a lever type soft seal butterfly valve comprises a valve body, wherein an H-shaped seal sleeve is movably sleeved in the middle of the valve body, twelve compression springs are fixedly connected to the inner wall of the valve body at equal intervals along the circumference, an arc-shaped pressure plate is fixedly connected between one end of each three compression springs, an annular rubber ring is movably connected between one sides of the four arc-shaped pressure plates opposite to each other, and the inner ring of the annular rubber ring is sleeved in the middle of the H-shaped seal sleeve;

the valve plate is movably connected inside the H-shaped sealing sleeve, the top of the valve plate is fixedly connected with a rotating rod, the top of the rotating rod penetrates through the annular rubber ring and extends to the outside of the valve body, movable grooves are symmetrically formed in the upper portion of the rotating rod, movable blocks are connected inside the movable grooves in a sliding mode, and short springs are fixedly connected between the side walls of the movable blocks and the inner walls of the adjacent movable grooves;

the top swing joint of valve body has the snap ring, the cutting ferrule has been cup jointed in the upper portion activity of dwang, the bottom overlap joint of cutting ferrule is at the top of snap ring, the inner wall symmetry swing joint of cutting ferrule has trapezoidal piece, the upper portion swing joint of cutting ferrule has U type depression bar, the both ends of U type depression bar bottom overlap joint respectively two the top of trapezoidal piece, fixedly connected with reset spring between the middle part of U type depression bar and the top of cutting ferrule, the right side fixedly connected with lever dop of cutting ferrule, the lower part joint of lever dop is in the inside of snap ring.

Further preferably, the arc-shaped grooves are formed in the surfaces of the arc-shaped pressing plates, the annular rubber rings are connected to the four inner portions of the arc-shaped grooves in a clamped mode, when the four arc-shaped pressing plates are pressed and contracted through the compression springs, the annular rubber rings can be driven to be tightly clamped on the surfaces of the H-shaped sealing sleeves, and the sealing performance between the H-shaped sealing sleeves and the valve plate is improved.

Preferably, the bottom of the valve plate is rotatably connected with a supporting shaft, and the bottom of the supporting shaft penetrates through the annular rubber ring and is fixedly connected to the inner bottom surface of the valve body.

Further preferably, slots are symmetrically formed in the top of the valve body, inserting rods are symmetrically and fixedly connected to the bottom of the clamping ring, the inserting rods are movably inserted into the slots, rotation of the clamping ring can be limited through matching of the slots and the inserting rods, and clamping with the lever clamping head is facilitated.

Preferably, the top of the movable block is an inclined plane, the bottom of the trapezoidal block is lapped on the top of the movable block, and when the trapezoidal block moves downwards, the movable block is pressed to move towards the inside of the movable groove, so that the limit between the rotating rod and the clamping sleeve is released;

the clamping sleeve is characterized in that sliding grooves are symmetrically formed in two sides of the inner wall of the clamping sleeve, the trapezoidal blocks are respectively and slidably connected to the two inner portions of the sliding grooves, and connecting springs are fixedly connected between the inner bottom surfaces of the sliding grooves and the bottoms of the trapezoidal blocks, so that the movable blocks cannot be extruded under the condition that the trapezoidal blocks are not pressed by the U-shaped pressing rods.

Preferably, two sides of the clamping sleeve are symmetrically provided with round holes, and two sides of the U-shaped pressure lever are respectively inserted into the two round holes;

the front and back symmetry of cutting ferrule inner wall has seted up the guide way, the upper portion symmetry fixedly connected with of dwang with two guide way matched with guide block through the cooperation of guide way and guide block, promotes the accuracy of cutting ferrule and dwang installation in-process position.

(III) advantageous effects

The utility model provides a lever soft seal butterfly valve possesses following beneficial effect:

(1) the utility model discloses a movable block, the cooperation of parts such as cutting ferrule and U type depression bar is used, at first with the snap ring joint behind the top of valve body, peg graft the cutting ferrule at the dwang top again, the movable block joint that makes dwang both sides swing joint is spacing to the snap ring in the inside of cutting ferrule, can make cutting ferrule lateral wall fixed connection's lever dop accomplish the installation with the snap ring, through pressing U type depression bar, make U type depression bar bottom lapped trapezoidal piece support the pressure movable block and remove, conveniently dismantle, be convenient for install and dismantle, and work efficiency is improved.

(2) The utility model discloses a cooperation of parts such as compression spring, arc and annular rubber circle is used, makes the valve plate install in the inside back of valve body, and compression spring can support and press the arc clamp plate that corresponds and remove, makes four arc clamp plate lateral wall movable mounting's annular rubber circle tighten up and press the surface at the arc clamp plate with what H type seal cover inner wall is firmly, promotes the leakproofness between arc clamp plate and the H type seal cover.

Drawings

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

FIG. 2 is an enlarged view of the structure A of FIG. 1 according to the present invention;

fig. 3 is a sectional view of the H-shaped sealing sleeve and the arc-shaped pressing plate of the present invention.

In the figure: 1, a valve body; a 2H-shaped sealing sleeve; 3 compressing the spring; 4, arc-shaped pressing plates; 5, an annular rubber ring; 6 a valve plate; 7 rotating the rod; 8, a movable groove; 9, a movable block; 10 short springs; 11 a snap ring; 12, cutting sleeve; 13 a trapezoidal block; a 14U-shaped compression bar; 15 a return spring; 16 lever chuck.

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. 1-3, the present invention provides a technical solution: the utility model provides a lever soft seal butterfly valve, including valve body 1, H type seal cover 2 has been cup jointed in the middle part activity of valve body 1, circumference equidistance fixedly connected with twelve compression spring 3 is followed to the inner wall of valve body 1, equal fixedly connected with arc clamp plate 4 between the one end of every three compression spring 3, swing joint has annular rubber circle 5 between the relative one side of four arc clamp plates 4, the arc wall has been seted up on the surface of

arc clamp plate

4, 5 joints of annular rubber circle are in the inside of four arc walls, the inner circle of annular rubber circle 5 cup joints the intermediate position at H type seal cover 2.

The inside swing joint of H type seal cover 2 has the valve plate 6, the bottom of valve plate 6 is rotated and connected with the back shaft, the bottom of back shaft runs through annular rubber circle 5 and is fixedly connected on the interior bottom surface of valve body 1, the top of valve plate 6 is fixedly connected with dwang 7, the top of dwang 7 runs through annular rubber circle 5 and extends to the outside of valve body 1, the upper portion of dwang 7 is symmetrically provided with movable groove 8, the inside of movable groove 8 is connected with movable block 9 in a sliding manner, short spring 10 is fixedly connected between the side wall of movable block 9 and the inner wall of adjacent movable groove 8, after the valve plate 6 is arranged inside the valve body 1, the compression spring 3 can support and press the corresponding arc-shaped pressing plate 4 to move, so that the annular rubber rings 5 movably arranged on the side walls of the four arc-shaped pressing plates 4 are tightened up to firmly support and press the inner wall of the H-shaped sealing sleeve 2 on the surface of the arc-shaped pressing plate 4, and the sealing performance between the arc-shaped pressing plate 4 and the H-shaped sealing sleeve 2 is improved.

The top of the valve body 1 is movably connected with a snap ring 11, the top of the valve body 1 is symmetrically provided with slots, the bottom of the snap ring 11 is symmetrically and fixedly connected with inserted rods, the inserted rods are movably inserted in the slots, the upper part of a rotating rod 7 is movably sleeved with a cutting sleeve 12, the front and the back of the inner wall of the cutting sleeve 12 are symmetrically provided with guide grooves, the upper part of the rotating rod 7 is symmetrically and fixedly connected with guide blocks matched with the two guide grooves, the bottom of the cutting sleeve 12 is lapped on the top of the snap ring 11, the inner wall of the cutting sleeve 12 is symmetrically and movably connected with a trapezoidal block 13, the top of the movable block 9 is arranged as an inclined plane, the bottom of the trapezoidal block 13 is lapped on the top of the movable block 9, the two sides of the inner wall of the cutting sleeve 12 are symmetrically provided with chutes, the two trapezoidal blocks 13 are respectively and slidably connected in the two chutes, a connecting spring is fixedly connected between the inner bottom surface of the chute and the bottom of the adjacent trapezoidal block 13, and the upper part of the cutting sleeve 12 is movably connected with a U-shaped press rod 14, the two sides of the cutting sleeve 12 are symmetrically provided with round holes, the two sides of the U-shaped pressure rod 14 are respectively inserted into the two round holes, the two ends of the bottom of the U-shaped pressure rod 14 are respectively lapped on the top of the two trapezoidal blocks 13, a return spring 15 is fixedly connected between the middle part of the U-shaped pressure rod 14 and the top of the cutting sleeve 12, a lever chuck 16 is fixedly connected to the right side of the cutting sleeve 12, the lower part of the lever chuck 16 is clamped in the clamping ring 11, when in use, the clamping ring 11 is firstly clamped on the top of the valve body 1, then the cutting sleeve 12 is inserted on the top of the rotating rod 7, so that the movable blocks 9 movably connected with the two sides of the rotating rod 7 move through the abutting pressure of the short spring 10, then the movable blocks 9 are clamped in the cutting sleeve 12 to limit the cutting sleeve 12, and simultaneously the cutting sleeve 12 is lapped on the top of the clamping ring 11 to limit the clamping ring 11 after being installed, so that the lever chuck 16 fixedly connected with the side wall of the cutting sleeve 12 and the clamping ring 11 can be installed, when needs are dismantled, through pressing U type depression bar 14, make U type depression bar 14 bottom lapped trapezoidal piece 13 support to press movable block 9 to remove, movable block 9 removes to 8 inside reliefs of movable groove with the joint of cutting ferrule 12, can conveniently dismantle, this butterfly valve is convenient for install and dismantles, promotes work efficiency.

The working principle is as follows:

when the butterfly valve is used, firstly, the snap ring 11 is clamped at the top of the valve body 1, then the clamping sleeve 12 is inserted at the top of the rotating rod 7, the movable blocks 9 movably connected at two sides of the rotating rod 7 move by abutting against the short spring 10, then the movable blocks 9 are clamped inside the clamping sleeve 12 to limit the clamping sleeve 12, meanwhile, the clamping sleeve 12 is overlapped at the top of the snap ring 11 to limit the snap ring 11 after being installed, so that a lever chuck 16 fixedly connected with the side wall of the clamping sleeve 12 and the snap ring 11 can be installed, when the disassembly is needed, the U-shaped pressure rod 14 is pressed, the trapezoidal block 13 overlapped at the bottom of the U-shaped pressure rod 14 abuts against the movable blocks 9 to move, the movable blocks 9 move to the inside of the movable groove 8 to release the clamping with the clamping sleeve 12, the disassembly can be conveniently carried out, the butterfly valve is convenient to install and disassemble, and improves the working efficiency; after the valve plate 6 is arranged inside the valve body 1, the compression spring 3 can support and press the corresponding arc-shaped pressing plate 4 to move, so that the annular rubber rings 5 movably arranged on the side walls of the four arc-shaped pressing plates 4 are tightened up to firmly support and press the inner wall of the H-shaped sealing sleeve 2 on the surface of the arc-shaped pressing plate 4, and the sealing performance between the arc-shaped pressing plate 4 and the H-shaped sealing sleeve 2 is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.

Claims

1. The utility model provides a lever soft seal butterfly valve, includes valve body (1), its characterized in that: the middle part of the valve body (1) is movably sleeved with an H-shaped sealing sleeve (2), twelve compression springs (3) are fixedly connected to the inner wall of the valve body (1) at equal intervals along the circumference, an arc-shaped pressing plate (4) is fixedly connected between one end of each three compression springs (3), an annular rubber ring (5) is movably connected between one opposite sides of the four arc-shaped pressing plates (4), and the inner ring of the annular rubber ring (5) is sleeved at the middle position of the H-shaped sealing sleeve (2);

a valve plate (6) is movably connected inside the H-shaped sealing sleeve (2), a rotating rod (7) is fixedly connected to the top of the valve plate (6), the top of the rotating rod (7) penetrates through the annular rubber ring (5) and extends to the outside of the valve body (1), movable grooves (8) are symmetrically formed in the upper portion of the rotating rod (7), movable blocks (9) are slidably connected inside the movable grooves (8), and short springs (10) are fixedly connected between the side walls of the movable blocks (9) and the inner walls of the adjacent movable grooves (8);

the top swing joint of valve body (1) has snap ring (11), cutting ferrule (12) has been cup jointed in the upper portion activity of dwang (7), the bottom overlap joint of cutting ferrule (12) is at the top of snap ring (11), the inner wall symmetry swing joint of cutting ferrule (12) has trapezoidal piece (13), the upper portion swing joint of cutting ferrule (12) has U type depression bar (14), the both ends of U type depression bar (14) bottom overlap joint respectively two the top of trapezoidal piece (13), fixedly connected with reset spring (15) between the middle part of U type depression bar (14) and the top of cutting ferrule (12), the right side fixedly connected with lever dop (16) of cutting ferrule (12), the lower part joint of lever dop (16) is in the inside of snap ring (11).

2. A lever type soft seal butterfly valve as claimed in claim 1, wherein: arc-shaped grooves are formed in the surfaces of the arc-shaped pressing plates (4), and the annular rubber rings (5) are clamped inside the four arc-shaped grooves.

3. A lever type soft seal butterfly valve as claimed in claim 1, wherein: the bottom of valve plate (6) is rotated and is connected with the back shaft, the bottom of back shaft runs through annular rubber circle (5) fixed connection on the interior bottom surface of valve body (1).

4. A lever type soft seal butterfly valve as claimed in claim 1, wherein: slots are symmetrically formed in the top of the valve body (1), inserting rods are symmetrically and fixedly connected to the bottom of the clamping ring (11), and the inserting rods are movably inserted into the slots.

5. A lever type soft seal butterfly valve as claimed in claim 1, wherein: the top of the movable block (9) is provided with an inclined plane, and the bottom of the trapezoidal block (13) is lapped on the top of the movable block (9);

the clamping sleeve is characterized in that sliding grooves are symmetrically formed in two sides of the inner wall of the clamping sleeve (12), the two trapezoidal blocks (13) are respectively connected inside the two sliding grooves in a sliding mode, and connecting springs are fixedly connected between the inner bottom surfaces of the sliding grooves and the bottoms of the adjacent trapezoidal blocks (13).

6. A lever type soft seal butterfly valve as claimed in claim 1, wherein: round holes are symmetrically formed in two sides of the clamping sleeve (12), and two sides of the U-shaped pressure lever (14) are respectively inserted into the two round holes;

the front and back symmetry of cutting ferrule (12) inner wall has seted up the guide way, the upper portion symmetry fixedly connected with of dwang (7) with two guide way matched with guide block.