CN216131466U

CN216131466U - Eccentric flange type butterfly valve

Info

Publication number: CN216131466U
Application number: CN202121619626.2U
Authority: CN
Inventors: 赵树起; 范亚荣
Original assignee: Tianjin Qichang Valve Manufacture Co ltd
Current assignee: Tianjin Qichang Valve Manufacture Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-03-25
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses an eccentric flange type butterfly valve, relating to the technical field of butterfly valves and comprising a valve body, a rotary gear and a lantern ring, the top of the valve body is fixedly connected with a hollow shell, the top of the hollow shell is connected with a rotating shaft in a penetrating way, the top of the rotating shaft is sleeved with a rotating disc, the outer side of the rotating shaft is sleeved with a valve plate, the bottom of the rotating shaft is movably connected with a bolt shaft, the outer side of the bolt shaft is in threaded connection with a nut, one side of the top of the hollow shell is in through connection with an idle sleeve, the outer side of the idle sleeve is sleeved with a connecting gear, the bottom of the idle sleeve is connected with a curve sliding groove shaft in a penetrating way, the top of the interior of the valve body is connected with a sliding block in a sliding way, one side of the sliding block is lapped with a curved sliding groove shaft, the outer side of the connecting gear is in transmission connection with the rotating gear, and the bottom of the rotating gear is movably connected with connecting rods at equal intervals. The effect of utilizing hydraulic impact force to lock the valve plate is achieved.

Description

Eccentric flange type butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to an eccentric flange type butterfly valve.

Background

The butterfly valve is often used for the pipe connection department, controls the fluid in the pipeline, and the opening and closing of the fluid flow in the control tube way and pipeline, the connected mode of butterfly valve have the multiple, adopts threaded connection, hot connection and other connected modes mostly, and long-time use all needs the maintenance, improves cost of maintenance greatly.

Current patent CN212455540U eccentric flange formula butterfly valve, the valve block fixedly connected with in the device butterfly valve presss from both sides tight fixing device, and the inner wall that presss from both sides tight fixing device is provided with the second rubber pad and protects the pivot, and the first rubber pad on second rubber pad cooperation positioning bolt top presss from both sides the pivot tightly fixedly simultaneously, simple to operate, convenient maintenance greatly reduces cost of maintenance.

However, if the device is under a condition of high water pressure, the rotation deviation of the valve plate can be known, so that the water flow is changed, and the use efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an eccentric flange type butterfly valve, which aims to solve the problem that the valve plate is locked to prevent the valve plate from deviating in angle under the condition of overlarge water pressure in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: an eccentric flange type butterfly valve comprises a valve body, a rotary gear and a lantern ring, wherein a hollow shell is fixedly connected to the top of the valve body, a rotating shaft is connected to the top of the hollow shell in a penetrating manner, a rotating disc is sleeved at the top of the rotating shaft, a valve plate is sleeved on the outer side of the rotating shaft, a bolt shaft is movably connected to the bottom of the rotating shaft, a nut is in threaded connection with the outer side of the bolt shaft, an idle sleeve is connected to one side of the top of the hollow shell in a penetrating manner, a connecting gear is sleeved on the outer side of the idle sleeve, a curve chute shaft is connected to the bottom of the idle sleeve in a penetrating manner, a sliding block is slidably connected to the top inside of the valve body, one side of the sliding block is in lap joint with the curve chute shaft, the outer side of the connecting gear is in transmission connection with the rotary gear, connecting rods are movably connected to the bottom of the rotary gear at equal intervals, a movable plate is movably connected to the bottom of the lantern ring at equal intervals, one corner of the movable plate is movably connected with the connecting rod.

Optionally, a curved sliding groove shaft penetrates through the bottom of the surface of the idle sleeve, and the outer side of the curved sliding groove shaft is connected with the sliding shaft in a sliding manner. The sliding connection between the sliding grooves on the surface of the curved sliding groove shaft and the sliding shaft can enable the curved sliding groove shaft to rotate the idle sleeve when moving.

Optionally, the top fixedly connected with slide rail of valve body, the inside and the sliding block of slide rail carry out sliding connection. Utilize the slide rail to carry out the supporting effect to the slider, also can carry out spacingly to the slider simultaneously.

Optionally, both sides of the bottom of the rotating gear are both connected with a supporting shaft in a sliding manner, and the bottom of the outer side of the supporting shaft is fixedly connected with the valve body. The support shaft is mainly used for supporting the rotating gear, and the rotation of the rotating gear is not delayed due to the sliding connection.

Optionally, the outside cover of pivot is equipped with the bearing, and the outside of bearing is connected with the top of hollow shell through interference fit. The self capacity of the bearing is utilized to enable the rotating shaft to have a supporting effect and a rotating effect

Optionally, a movable hole is formed in one side of the top of the valve body, the inner portion of the movable hole is in penetrating connection with the curved chute shaft and passes through the movable hole, and the curved chute and the chute shaft can be in lap joint.

The utility model has the technical effects and advantages that:

1. eccentric flange formula butterfly valve, will utilize the impact force of water to make the sliding block move to the right when water pressure reaches the take the altitude, will promote the curve spout axle to rise when removing a certain position, the in-process that rises utilizes the sliding connection of sliding shaft and curve spout axle to make idle sleeve and connecting gear rotatory connect through the transmission of chain and make the bull gear corotation, will promote the fly leaf inwards to move through the connection of connecting rod when the bull gear just transmits, lock the countershaft and valve plate, thereby reach and utilize hydraulic impact force to lock the valve plate.

2. Eccentric flange formula butterfly valve through idle sleeve of reversal and connecting gear, utilizes the transmission of chain to connect simultaneously and makes the swivelling gear reversal, will promote the fly leaf and outwards remove through the connection of connecting rod when the swivelling gear is reversed the transmission, to countershaft and valve plate contact lock, conveniently reset and carry out the secondary lock.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the valve body according to the present invention;

FIG. 3 is a schematic view of the top structure of the rotary gear of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention.

In the figure: the device comprises a valve body 1, a rotating disk 2, a rotating shaft 3, a rotating gear 4, a hollow shell 5, a valve plate 6, a nut 7, a bolt shaft 8, a curved chute shaft 9, a sliding block 10, a connecting gear 11, an idle sleeve 12, a chain 13, a sliding shaft 14, a connecting rod 15, a lantern ring 16 and a movable plate 17.

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.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The utility model provides an eccentric flange type butterfly valve as shown in figures 1-4, which comprises a valve body 1, a rotary gear 4 and a lantern ring 16, wherein the top of the valve body 1 is fixedly connected with a hollow shell 5, the top of the hollow shell 5 is in through connection with a rotating shaft 3, the top of the rotating shaft 3 is sleeved with a rotary disk 2, the outer side of the rotating shaft 3 is sleeved with a valve plate 6, the bottom of the rotating shaft 3 is movably connected with a bolt shaft 8, the outer side of the bolt shaft 8 is in threaded connection with a nut 7, one side of the top of the hollow shell 5 is in through connection with an idle sleeve 12, the outer side of the idle sleeve 12 is sleeved with a connecting gear 11, the bottom of the idle sleeve 12 is in through connection with a curved sliding groove shaft 9, the top inside the valve body 1 is in sliding connection with a sliding block 10, one side of the sliding block 10 is in lap joint with the curved sliding groove shaft 9, the outer side of the connecting gear 11 is in transmission connection with the rotary gear 4, the bottom of the rotary gear 4 is in equal interval movable connection with a connecting rod 15, equal interval swing joint in the bottom of the lantern ring 16 has fly leaf 17, the one corner and the connecting rod 15 swing joint of fly leaf 17, the bottom through connection on idle sleeve 12 surface has curve spout axle 9, the outside and the sliding shaft 14 sliding connection of curve spout axle 9, the top fixedly connected with slide rail of valve body 1, the inside and the sliding block 10 of slide rail carry out sliding connection, the equal sliding connection in both sides of rotary gear 4 bottom has the back shaft, the outside bottom and the valve body 1 fixed connection of back shaft, the outside cover of pivot 3 is equipped with the bearing, the outside of bearing is passed through interference fit and is connected with the top of hollow shell 5, one side at valve body 1 top begins to have the movable hole, the inside and the curve spout axle 9 through connection of movable hole.

This practical theory of operation: the eccentric flange type butterfly valve can utilize the impact force of water to move the sliding block 10 to the right when the water pressure reaches a certain height, when the sliding block moves to a certain position, the curved chute shaft 9 is pushed to rise, the sliding connection of the sliding shaft 14 and the curved chute shaft 9 is utilized to enable the idle sleeve 12 and the connecting gear 11 to rotate in the rising process, the rotating gear 4 is enabled to rotate forwards through the transmission connection of the chain 13, when the rotating gear 4 is positively transmitted, the movable plate 17 is pushed to move inwards through the connection of the connecting rod 15, the rotating shaft 3 and the valve plate 6 are locked, so that the valve plate is locked by the impact force of the water pressure, through reversely rotating the idle sleeve 12 and the connecting gear 11, simultaneously, the rotating gear 4 is reversely rotated through the transmission connection of the chain 13, and when the rotating gear 4 reversely transmits, the movable plate 17 is pushed to move outwards through the connection of the connecting rod 15, the counter shaft 3 and the valve plate 6 contact the lock, so that the secondary lock can be conveniently reset.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an eccentric flange formula butterfly valve, includes valve body (1), rotary gear (4) and lantern ring (16), its characterized in that: the top fixedly connected with hollow shell (5) of valve body (1), the top through connection of hollow shell (5) has pivot (3), rotary disk (2) has been cup jointed at the top of pivot (3), the outside cover of pivot (3) is equipped with valve plate (6), the bottom swing joint of pivot (3) has bolt axle (8), the outside threaded connection of bolt axle (8) has nut (7), one side through connection at hollow shell (5) top has idle sleeve (12), connecting gear (11) has been cup jointed in the outside of idle sleeve (12), the bottom through connection of idle sleeve (12) has curve spout axle (9), the inside top sliding connection of valve body (1) has sliding block (10), one side and the overlap joint of curve spout axle (9) of sliding block (10), the outside and the rotary gear (4) transmission of connecting gear (11) are connected, the bottom of the rotating gear (4) is movably connected with connecting rods (15) at equal intervals, the bottom of the lantern ring (16) is movably connected with movable plates (17) at equal intervals, and one corner of each movable plate (17) is movably connected with each connecting rod (15).

2. An eccentric flange butterfly valve in accordance with claim 1, wherein: the bottom of the surface of the idle sleeve (12) is connected with a curve sliding groove shaft (9) in a penetrating mode, and the outer side of the curve sliding groove shaft (9) is connected with a sliding shaft (14) in a sliding mode.

3. An eccentric flange butterfly valve in accordance with claim 1, wherein: the top fixedly connected with slide rail of valve body (1), the inside and sliding block (10) of slide rail carry out sliding connection.

4. An eccentric flange butterfly valve in accordance with claim 1, wherein: the two sides of the bottom of the rotating gear (4) are both connected with a supporting shaft in a sliding mode, and the bottom of the outer side of the supporting shaft is fixedly connected with the valve body (1).

5. An eccentric flange butterfly valve in accordance with claim 1, wherein: the outside cover of pivot (3) is equipped with the bearing, and the outside of bearing is connected through interference fit and the top of hollow shell (5).

6. An eccentric flange butterfly valve in accordance with claim 1, wherein: a movable hole is formed in one side of the top of the valve body (1), and the inner portion of the movable hole is in penetrating connection with the curved chute shaft (9).