CN114382903A

CN114382903A - Butterfly valve

Info

Publication number: CN114382903A
Application number: CN202210086969.XA
Authority: CN
Inventors: 张向海; 张俊延; 刘吉志; 孙衍国; 刘玉爱
Original assignee: Shandong Guangfu Group Co Ltd; Zouping Xinte Casting Technology Co ltd
Current assignee: Shandong Guangfu Group Co Ltd; Zouping Xinte Casting Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-04-22

Abstract

The invention discloses a butterfly valve, which belongs to the technical field of valves and comprises a valve body and a control part, wherein the valve body is provided with a cavity allowing a medium to flow from an inlet to an outlet of the valve; the control part is arranged on the valve body and controls the valve body to be opened or closed; the control part comprises a butterfly plate, a valve rod and an adjusting mechanism; the butterfly plate is arranged on the cavity, the valve rod penetrates through the butterfly plate, and two ends of the valve rod are respectively connected with the adjusting mechanism and the valve body; the adjusting mechanism rotates to drive the valve rod to rotate so as to open or close the cavity by the butterfly plate. The rotation of the valve rod is controlled by the adjusting mechanism, the butterfly plate rotates along with the valve rod, the size of the opening of the valve body is adjusted, and the flow is accurately controlled.

Description

Butterfly valve

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a butterfly valve.

Background

The butterfly valve, also called flap valve, is a kind of valve which achieves the function of opening and closing by the valve plate rotating around the valve stem, plays the role of cutting off and throttling the transmission medium in the pipeline, it has the advantage of fast opening and closing speed; the chinese patent CN111594625B discloses a butterfly valve, which includes a valve body, a valve plate and a valve shaft, wherein the valve body is provided with a valve hole, the valve plate is disposed in the valve hole, the valve shaft is positioned at one side of the valve plate, the valve shaft drives the valve plate to rotate, when the valve plate is in a closed state, the valve plate divides the valve hole into an air inlet cavity and an air outlet cavity, the valve plate includes a fixed plate and a movable plate, the movable plate and the fixed plate can move relatively along a common central axis, one side edge of the fixed plate facing the movable plate is provided with a left annular inclined surface, one side edge of the movable plate facing the fixed plate is provided with a right annular inclined surface, a sealing ring positioning groove is formed between the left annular inclined surface and the right annular inclined surface, an O-shaped sealing ring is disposed in the sealing ring positioning groove, and the valve plate is provided with a rotator and a rotating plate; however, the sizes of the openings of the valve core and the valve plate in the above patents are difficult to adjust, and the flow rate of the valve body is inconvenient to control.

Disclosure of Invention

In order to solve the problems, the invention provides a butterfly valve, wherein an adjusting mechanism controls the rotation of a valve rod, and a butterfly plate rotates along with the valve rod, so that the size of an opening of a valve body is conveniently adjusted, and the flow is conveniently and accurately controlled.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a butterfly valve comprising a valve body and a control portion, the valve body having a cavity allowing a medium to flow from an inlet to an outlet of the valve; the control part is arranged on the valve body and controls the valve body to be opened or closed; the control part comprises a butterfly plate, a valve rod and an adjusting mechanism; the butterfly plate is arranged on the cavity, the valve rod penetrates through the butterfly plate, and two ends of the valve rod are respectively connected with the adjusting mechanism and the valve body; the adjusting mechanism rotates to drive the valve rod to rotate so as to open or close the cavity by the butterfly plate. The valve rod is controlled to rotate through the adjusting mechanism, and the butterfly plate rotates along with the valve rod at the moment, so that the size of the opening of the valve body is adjusted, and the flow is accurately controlled.

As a further improvement of the technical scheme, the adjusting mechanism is arranged on the valve body through a mounting seat, a fixed seat is arranged on the upper portion of the mounting seat, and one end of the valve rod is arranged on the fixed seat through a bearing and connected with the adjusting mechanism, so that the adjusting mechanism is convenient to install.

As a further improvement of the above technical solution, the control part further includes a locking mechanism, and the locking mechanism is disposed on the upper portion of the fixing seat and located on the lower portion of the adjusting mechanism.

As a further improvement of the above technical solution, the locking mechanism is provided with a plurality of locking grooves, and the adjusting mechanism is provided with a limiting portion which is matched with the locking grooves; the limiting part is arranged at the lower part of the adjusting mechanism through a rotating shaft, a plurality of locking grooves are formed in the locking mechanism, and the locking grooves are distributed on the locking mechanism at equal intervals; the fixing of the adjusting mechanism is facilitated.

As a further improvement of the above technical solution, the limiting part comprises a pressing body and a locking part; the pressing body and the locking part are of an integrated structure and are at 45-degree included angles, and the locking part is embedded into the locking groove.

As a further improvement of the technical scheme, the rotation angle of the butterfly plate relative to the valve body is 0-90 degrees.

As a further improvement of the above technical solution, the butterfly valve further comprises a guide seat, wherein the guide seat comprises an upper guide seat and a lower guide seat; the upper guide seat and the lower guide seat are respectively arranged at the upper side and the lower side of the valve body, and the valve rod is respectively connected with the upper guide seat and the lower guide seat; go up the guide holder and can make things convenient for the installation of valve rod with lower guide holder on the one hand, on the other hand can make things convenient for the rotation of valve rod at the valve body.

According to the technical scheme, the invention has the beneficial effects that: the adjusting mechanism rotates to drive the valve rod to rotate so as to open or close the cavity through the butterfly plate.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of the embodiment.

Fig. 2 is a schematic view of an installation structure of the upper and lower guide bases according to the embodiment.

Fig. 3 is a schematic structural diagram of a locking mechanism according to an embodiment.

Fig. 4 is a schematic structural view of a limiting portion according to an embodiment.

In the drawings, the components represented by the respective reference numerals are listed below: 1 is a valve body, 2 is a control part, 3 is a mounting seat, 4 is a fixed seat, 5 is an upper guide seat, 6 is a lower guide seat, 11 is a cavity, 21 is a butterfly plate, 22 is a valve rod, 23 is an adjusting mechanism, 24 is a locking mechanism, 25 is a locking groove, 26 is a limiting part, 27 is a pressing body, and 28 is a locking part.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all 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 scope of protection of this patent.

Referring to fig. 1 to 4, the present invention discloses a butterfly valve, including a valve body 1 and a control part 2; the valve body 1 has a cavity 11 allowing the medium to flow from the inlet to the outlet of the valve; the control part 2 is arranged on the valve body 1 and controls the valve body 1 to open or close; the control part 2 comprises a butterfly plate 21, a valve rod 22 and an adjusting mechanism 23; the butterfly plate 21 is arranged on the cavity 11, the valve rod 22 penetrates through the butterfly plate 21, and two ends of the valve rod 22 are respectively connected with the adjusting mechanism 23 and the valve body 1; the adjusting mechanism 23 rotates to drive the valve rod 22 to rotate so as to open or close the cavity 11 through the butterfly plate 21, the adjusting mechanism 23 controls the valve rod 22 to rotate, at the moment, the butterfly plate 21 rotates along with the valve rod 22, the opening size of the valve body 1 is adjusted, and flow is conveniently and accurately controlled.

In order to facilitate the installation of the adjusting mechanism 23, the adjusting mechanism 23 is arranged on the valve body 1 through an installation seat 3, a fixed seat 4 is arranged at the upper part of the installation seat 3, and one end of the valve rod 22 is arranged on the fixed seat 4 through a bearing and is connected with the adjusting mechanism 23; when connecting, be provided with the internal thread on the adjustment mechanism 23, valve rod 22 is provided with the external screw thread with interior screw-thread fit on one side of being connected of adjustment mechanism 23, and then makes things convenient for valve rod 22 and adjustment mechanism 23 to be connected, when valve rod 22 needs the maintenance simultaneously, dismantles adjustment mechanism 23, takes out valve rod 22, changes behind the valve rod 22, then valve rod 22 passes through the bearing and installs on fixing base 4, and then realizes quick replacement's effect.

The control part further comprises a locking mechanism 24, and the locking mechanism 24 is arranged at the upper part of the fixed seat 3 and is positioned at the lower part of the adjusting mechanism 23; the locking mechanism 24 is provided with a plurality of locking grooves 25, and the adjusting mechanism 23 is provided with a limiting part 26 matched with the locking grooves 25; when in use, the limiting part 26 is arranged at the lower part of the adjusting mechanism 23 through a rotating shaft, and the limiting part 26 is turned up and down relative to the adjusting mechanism 23 through the rotating shaft and is clamped through the locking groove 25, so that the opening sizes of the butterfly plate 21 and the valve body 1 are kept; the number of the locking grooves 25 is equal, the number of the locking grooves 25 is equal to the number of the locking mechanisms 24, and in this embodiment, five locking grooves 25 are provided; the stopper 26 includes a pressing body 27 and a locking portion 28; press main part 27 with locking portion 28 formula mechanism as an organic whole just is 45 degrees contained angles, and the contained angle junction is provided with the pivot, and during normal use, in locking portion 28 embedding locking groove 25, when the opening size of butterfly plate 21 and valve body 1 is adjusted to needs, the downward movement presses main part 27, at this moment locking portion 28 breaks away from in the locking groove 25, adjustment mechanism 3 drives valve rod 22 and rotates, and when the opening size of butterfly plate 21 and valve body 1 was fit, at this moment locking portion 28 imbeds locking groove 25 once more.

The rotation angle of the butterfly plate 21 relative to the valve body 1 is 0-90 degrees. The butterfly valve also comprises a guide seat, and the guide seat comprises an upper guide seat 5 and a lower guide seat 6; go up guide holder 5 and lower guide holder 6 set up respectively in the upper and lower both sides of valve body 1, valve rod 22 respectively with go up guide holder 5 and guide holder 6 down are connected, go up guide holder 5 and guide holder 6 down and can make things convenient for the installation of valve rod 22 on the one hand, and on the other hand can make things convenient for the rotation of valve rod 22 at valve body 1.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A butterfly valve, characterized by comprising a valve body (1) and a control portion (2), the valve body (1) having a cavity (11) allowing a medium to flow from an inlet to an outlet of the valve; the control part (2) is arranged on the valve body (1) and controls the valve body (1) to be opened or closed; the control part (2) comprises a butterfly plate (21), a valve rod (22) and an adjusting mechanism (23); the butterfly plate (21) is arranged on the cavity (11), the valve rod (22) penetrates through the butterfly plate (21), and two ends of the valve rod (22) are respectively connected with the adjusting mechanism (23) and the valve body (1); the adjusting mechanism (23) rotates to drive the valve rod (22) to rotate so as to open or close the cavity (11) by the butterfly plate (21).

2. The butterfly valve according to claim 1, wherein the adjusting mechanism (23) is arranged on the valve body (1) through a mounting seat (3), a fixed seat (4) is arranged on the upper portion of the mounting seat (3), and one end of the valve rod (22) is arranged on the fixed seat (4) through a bearing and is connected with the adjusting mechanism (23).

3. The butterfly valve according to claim 2, characterized in that the control part (2) further comprises a locking mechanism (24), the locking mechanism (24) being arranged at the upper part of the fixed seat (3) and at the lower part of the adjusting mechanism (23).

4. The butterfly valve according to claim 3, wherein the locking mechanism (24) is provided with a plurality of locking grooves (25), and the adjusting mechanism (23) is provided with a limiting part (26) matched with the locking grooves (25); the limiting part (26) is arranged at the lower part of the adjusting mechanism (23) through a rotating shaft.

5. The butterfly valve according to claim 4, characterized in that said locking groove (25) is provided in a plurality, said plurality of locking grooves (25) being equally spaced on said locking means (24).

6. The butterfly valve according to claim 4, wherein the stopper (26) comprises a pressing body (27) and a locking portion (28); press main part (27) with locking portion (28) structure as an organic whole just is 45 degrees contained angles, locking portion (28) embedding locking inslot (25).

7. A butterfly valve according to claim 1, characterised in that the angle of rotation of the butterfly plate (21) with respect to the valve body (1) is 0-90 degrees.

8. The butterfly valve according to claim 1, further comprising a guide seat comprising an upper guide seat (5) and a lower guide seat (6); the upper guide seat (5) and the lower guide seat (6) are respectively arranged on the upper side and the lower side of the valve body (1), and the valve rod (22) is respectively connected with the upper guide seat (5) and the lower guide seat (6).