CN214331505U

CN214331505U - Valve gate

Info

Publication number: CN214331505U
Application number: CN202120516905.XU
Authority: CN
Inventors: 鲍丙成; 陈军; 戴宏兵; 颜志伟
Original assignee: Neway Valve Suzhou Co Ltd
Current assignee: Neway Valve Suzhou Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-10-01
Anticipated expiration: 2031-03-11

Abstract

The utility model relates to the technical field of valves, specifically provide a valve, include: a valve body having a valve cavity; the butterfly plate frame and the sealing ring are positioned in the valve cavity, and the sealing ring is pressed on the butterfly plate frame and is connected with the butterfly plate frame in a sealing way; the valve seat is positioned in the valve cavity and is in sealing connection with the valve body, a first installation cavity is formed between the valve seat and the inner wall surface of the valve body, and the valve seat is connected with the sealing ring in an abutting mode; the first positioning structure is positioned in the first mounting cavity, the valve seat has a mounting state of rotating along the circumferential surface of the valve cavity, and the valve seat is positioned and mounted on the valve body by the first positioning structure in the mounting state. Through setting up first location structure, when the disk seat rotated the installation along global of valve pocket, can with disk seat location installation on the valve body, after guaranteeing to correspond fixed mounting between disk seat and the valve body, the sealing ring also can with correspond sealing connection between the disk seat, the installation is simple, need not to go on sealing ring or disk seat and to go on artifical groove and can accomplish the installation.

Description

Valve gate

Technical Field

The utility model relates to the technical field of valves, concretely relates to valve.

Background

The valve core of the valve adopts a butterfly structure and rotates for 90 degrees by taking the valve rod as a center, and the rotation center of the valve and the center of the sealing surface and the center of the valve body channel as well as the center of the valve body channel and the center of the cone angle of the sealing surface are not superposed to form three eccentricities. The valve comprises a sealing pair, the sealing pair consists of a sealing ring and a metal ring with certain hardness difference at two parts of a valve seat, and the binding surfaces of the sealing ring and the metal ring are in an inclined cone shape and are asymmetric. Wherein the laminating of sealing ring one side is on the butterfly plate pallet step face, installs graphite annular gasket between, and the butterfly plate clamping ring is ann to the opposite side, screws up on the butterfly plate clamping ring can compress tightly sealing ring and gasket to guarantee to seal between sealing ring and the butterfly plate frame and do not have the leakage.

In the prior art, when a valve is closed after being installed, a contact sealing surface abutted between a sealing ring and a valve seat needs to be attached together, but the contact sealing surface is of an inclined cone asymmetric structure, so that only one relative position of the abutting contact sealing surface abutted between the sealing ring and the valve seat is needed, in order to guarantee the sealing performance, the contact sealing surface needs to be aligned.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming prior art, when closing after the valve is installed, the sealed face of contact of butt need be laminated together between sealing ring and the disk seat between the two, but because sealed face is the oblique cone asymmetric structure, consequently the relative position of the sealed face laminating of butt between the two only has one, in order to guarantee the leakproofness, need find this sealed face accurately, the method that uses at present is that sealing ring and disk seat are man-hour, carry out artifical marking off in the position of sealing ring or disk seat butt respectively, visual alignment marks good marking off in advance during the assembly and guarantees relative position between the two, this kind of method is influenced by assembler's experience greatly, the low just unsuitable ultralow temperature side of assembly side dress is at the defect of the online maintenance butterfly valve assembly requirement, thereby a valve is provided.

A valve, comprising: a valve body having a valve cavity; the butterfly plate frame and the sealing ring are positioned in the valve cavity, and the sealing ring is pressed on the butterfly plate frame and is connected with the butterfly plate frame in a sealing manner; the valve seat is positioned in the valve cavity and is in sealing connection with the valve body, a first installation cavity is formed between the valve seat and the inner wall surface of the valve body, and the valve seat is connected with the sealing ring in an abutting mode;

the valve seat is provided with an installation state of rotating and moving along the circumferential surface of the valve cavity, and the valve seat is installed on the valve body in a positioning mode through the first positioning structure in the installation state.

Optionally, in the above valve, the first positioning structure includes at least one first positioning element, any one of the first positioning elements is disposed on the inner circular wall surface of the valve body, a first positioning groove is formed in a position, corresponding to the first mounting cavity, of the outer circular wall surface of the valve seat, and when the valve seat rotates relative to the valve body, the first positioning element can correspondingly rotate into the first positioning groove.

Optionally, in the above valve, the first positioning element is a positioning pin, and an axial direction of the positioning pin is perpendicular to an axial direction of the valve cavity.

Optionally, in the above valve, the valve further includes a second positioning structure, the second positioning structure connects the butterfly frame and the sealing ring, the sealing ring has an installation state of rotating along the circumferential surface of the butterfly frame, and in the installation state, the second positioning structure fixes the sealing ring in position on the butterfly frame.

Optionally, in the above valve, the second positioning structure includes at least one second positioning element, any one of the second positioning elements is located on the butterfly plate frame, a second positioning groove adapted to the second positioning element is formed in the sealing ring, and when the sealing ring rotates relative to the butterfly plate frame, the second positioning element can be shifted into the second positioning groove.

Optionally, in the above valve, the butterfly plate frame has an installation surface that is in sealing contact with the sealing ring, and the second positioning groove is opened in the installation surface.

Optionally, in the above valve, an installation surface of the butterfly plate frame contacting the sealing ring is stepped, and the second positioning groove is provided on the stepped installation surface in a half-open shape.

Optionally, in the above valve, any one of the second positioning members is a positioning pin.

Optionally, in the above-mentioned valve, still include the valve rod, the one end of valve rod stretches into in the valve chamber, the butterfly plate erects the valve rod stretches into on the partial body of rod of valve chamber under the drive of valve rod, the butterfly plate frame with open opening state and sealed off-state have between the valve body.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a valve, include: a valve body having a valve cavity; the butterfly plate frame and the sealing ring are positioned in the valve cavity, and the sealing ring is pressed on the butterfly plate frame and is connected with the butterfly plate frame in a sealing manner; the valve seat is positioned in the valve cavity and is in sealing connection with the valve body, a first installation cavity is formed between the valve seat and the inner wall surface of the valve body, and the valve seat is connected with the sealing ring in an abutting mode;

In the valve of this structure, through setting up first location structure, when the disk seat rotates the installation along global of valve pocket, can install the disk seat location on the valve body, guarantee after corresponding fixed mounting between disk seat and the valve body, the sealing ring also can with the disk seat between correspond sealing connection, the installation is simple, need not to go on artifical groove and can accomplish the installation on sealing ring or disk seat, among the prior art has been overcome, when assembling sealing ring and disk seat, because need visual alignment mark good marking off in advance and guarantee relative position between them, because the experience that receives the assembly quality influence is big in the installation, the low and unsuitable defect that the online maintenance butterfly valve of ultralow temperature side equipment assembled the requirement of assembly efficiency.

2. The utility model provides an in the valve, first location structure includes an at least first locating part, arbitrary first locating part is located on the interior round wall of valve body the excircle wall of disk seat corresponds first constant head tank is seted up to the position of first installation cavity the disk seat is relative when the valve body rotates, first locating part can correspond change over to extremely in the first constant head tank. In the valve of this structure, set up this first locating piece on the interior circle wall of valve body, set up first constant head tank in the position that corresponds first installation cavity on the excircle wall of disk seat simultaneously, first installed part can correspond and change over to first constant head tank in to this installation location between disk seat and the valve body has been accomplished, installation convenient operation.

3. The utility model provides an in the valve, still include second location structure, second location structure connects the butterfly grillage with the sealing ring, the sealing ring has the edge the global rotational motion's of butterfly grillage installation state, under the installation state, second location structure will the sealing ring location is installed on the butterfly grillage.

In the valve of this structure, install disk seat and valve body at first location structure and accomplish the back, through setting up second location structure, butterfly grillage and sealing ring are connected to this second location structure, can connect butterfly grillage and sealing ring, in order to realize fixing a position the effect that corresponds the position on the butterfly grillage with the sealing ring circumference, also can improve the sealed effect between sealing ring and the disk seat simultaneously, the groove can seal this disk seat and sealing ring on disk seat and sealing ring simultaneously, in order to accomplish the installation of valve, and dismantle simple to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the valve provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the valve shown in FIG. 1;

FIG. 3 is an enlarged view of the structure shown in FIG. 2 at A;

description of reference numerals:

1. a valve body; 2. a valve seat; 3. a butterfly plate frame; 4. a seal ring; 5. a valve cavity; 6. a first mounting cavity; 7. a first positioning member; 9. a second positioning member; 11. a valve stem.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The embodiment describes a valve, and referring to fig. 1 to fig. 3, the valve includes a valve body 1, a valve seat 2, a butterfly plate frame 3 and a sealing ring 4, wherein the valve body 1 has a valve cavity 5, the butterfly plate frame 3, the sealing ring 4 and the valve seat 2 are all located in the valve cavity 5, and the sealing ring 4 is pressed on the butterfly plate frame 3 and can be connected with the butterfly plate frame 3 in a sealing manner.

Specifically, one side surface of the valve seat 2 is in contact with the seal ring 4, the other side surface of the valve seat 2 is in sealing connection with the valve body 1, after the valve seat 2 is connected with the inner wall surface of the valve body 1, a first mounting cavity 6 is formed between the valve seat 2 and the inner wall surface of the valve body 1, a first positioning structure is arranged in the first mounting cavity 6, the valve seat 2 has a mounting state of rotating along the circumferential surface of the valve cavity 5, and in the mounting state, the valve seat 2 is positioned and mounted on the valve body 1 by the first positioning structure.

In the valve of this structure, through setting up first location structure, when disk seat 2 rotates the installation along global of valve pocket 5, can install disk seat 2 location on valve body 1, guarantee to correspond after fixed mounting between disk seat 2 and the valve body 1, sealing ring 4 also can with disk seat 2 between correspond sealing connection, the installation is simple, need not to go on at sealing ring 4 or disk seat 2 and to go on artifical groove and can accomplish the installation, prior art has been overcome, when assembling sealing ring 4 and disk seat 2, because need visual alignment mark good marking off in advance and guarantee relative position between them, in the installation owing to receive assembly personnel's experience influence greatly, the low just unsuitable defect that ultra-low temperature side equipment on-line maintenance butterfly valve assembly required.

Specifically, the first positioning structure comprises at least one first positioning piece 7, any one first positioning piece 7 is arranged on the inner circle wall surface of the valve body 1, a first positioning groove is arranged on the position of the excircle wall surface of the valve seat 2 corresponding to the first mounting cavity 6, when the valve seat 2 rotates relative to the valve body 1 and is in a mounting state, the first positioning piece 7 can be correspondingly rotated into a first positioning groove and fixed in the first positioning groove to complete the positioning and installation between the valve seat 2 and the valve body 1, in the valve with the structure, the first positioning piece 7 is arranged on the inner circular wall surface of the valve body 1, meanwhile, a first positioning groove is formed in the position, corresponding to the first mounting cavity 6, on the outer circle wall surface of the valve seat 2, the first mounting part can correspondingly rotate into the first positioning groove, mounting and positioning between the valve seat 2 and the valve body 1 are achieved, and operation is convenient in the mounting process.

Wherein, above-mentioned first locating piece 7 can be the locating pin, the axial direction of this locating pin sets up with the axial direction of valve pocket 5 is perpendicular, when disk seat 2 carries out the dwang installation along the valve pocket 5 global of valve body 1, the locating pin can be pushed into first locating groove, accomplish the installation of disk seat 2 and valve body 1, specifically set up the locating pin on valve body 1, set up first locating groove on the disk seat 2 excircle face with this valve body 1 complex, during the assembly, disk seat 2 puts into a part of valve body 1 earlier, then impel and rotate disk seat 2, when the first locating groove on disk seat 2 contacts with the locating pin on the valve body 1, disk seat 2 can be pushed into on the valve body 1 step completely by the automation, the radial position of disk seat 2 on valve body 1 is fixed by the locating pin restriction this moment.

In this embodiment, the butterfly frame 3 further comprises a second positioning structure, the second positioning structure is connected between the butterfly frame 3 and the sealing ring 4, the sealing ring 4 has an installation state of rotating along the circumferential surface of the butterfly frame 3, and in the installation state, the second positioning structure positions and installs the sealing ring 4 on the butterfly frame 3.

Install disk seat 2 and valve body 1 at first location structure and accomplish the back, through setting up second location structure, butterfly grillage 3 and sealing ring 4 are connected to this second location structure, can connect butterfly grillage 3 and sealing ring 4, in order to realize fixing a position the effect that corresponds the position on butterfly grillage 3 with sealing ring 4, also can improve the sealed effect between sealing ring 4 and the disk seat 2 simultaneously, it can seal this disk seat 2 and sealing ring 4 to need not the groove simultaneously on disk seat 2 and sealing ring 4, in order to accomplish the installation of valve, and dismantle simple to operate.

Specifically, the second positioning structure includes at least one second positioning element 9, any second positioning element 9 is located on the butterfly plate frame 3, a second positioning groove adapted to the second positioning element 9 is formed in the sealing ring 4, when the sealing ring 4 rotates relative to the butterfly plate frame 3, the second positioning element 9 can be shifted into the second positioning groove to complete connection between the sealing ring 4 and the butterfly plate frame 3 and can be connected with one side face of the valve seat 2 in an abutting mode, the butterfly plate frame 3 is provided with an installation face in sealing contact with the sealing ring 4, the second positioning groove is formed in the installation face, when the second positioning structure is specifically applied, the installation face in contact with the sealing ring 4 can be arranged in a step shape, the second positioning groove is formed in a half-opening-shaped installation face in the step shape, and after the installation, the installation face is in a sealing installation state.

Any one of the second positioning parts 9 can be a positioning pin, and the radial position of the sealing ring 4 on the butterfly plate frame 3 is limited by the positioning pin on the step of the butterfly plate frame 3 after the sealing ring is installed. Under the effect of second setting element 9 and first setting element 7, the relative position that needs when designing is all installed to disk seat 2 and sealing ring 4, realizes automatic positioning, guarantees laminating sealing installation between disk seat 2 and the sealing ring 4, and the position of specification can be installed to whole assembly process under the condition that need not visualize, narrow and small space the inside assembly qualified part when can realizing the valve on-line maintenance.

The valve in this embodiment further includes a valve rod 11, one end of the valve rod 11 extends into the valve cavity 5, the butterfly plate frame 3 is disposed on a part of the rod body of the valve rod 11 extending into the valve cavity 5, and under the driving of the valve rod 11, an open state and a sealed close state are provided between the butterfly plate frame 3 and the valve body 1. In the open state, the medium flows through the valve chamber 5.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A valve, comprising:

a valve body (1) having a valve cavity (5);

the butterfly plate frame (3) and the sealing ring (4) are both positioned in the valve cavity (5), and the sealing ring (4) is pressed on the butterfly plate frame (3) and is connected with the butterfly plate frame (3) in a sealing manner;

the valve seat (2) is positioned in the valve cavity (5) and is in sealing connection with the valve body (1), a first installation cavity (6) is formed between the valve seat (2) and the inner wall surface of the valve body (1), and the valve seat (2) is connected with the sealing ring (4) in an abutting mode;

the first positioning structure is positioned in the first installation cavity (6), the valve seat (2) has an installation state of rotating and moving along the circumferential surface of the valve cavity (5), and the valve seat (2) is positioned and installed on the valve body (1) by the first positioning structure in the installation state.

2. The valve according to claim 1, wherein the first positioning structure comprises at least one first positioning member (7), any one of the first positioning members (7) is arranged on the inner circular wall surface of the valve body (1), a first positioning groove is formed in the position, corresponding to the first mounting cavity (6), of the outer circular wall surface of the valve seat (2), and when the valve seat (2) rotates relative to the valve body (1), the first positioning member (7) can correspondingly rotate into the first positioning groove.

3. Valve according to claim 2, wherein the first positioning member (7) is a positioning pin, the axial direction of which is arranged perpendicular to the axial direction of the valve chamber (5).

4. A valve according to any one of claims 1-3, further comprising a second positioning structure connecting the butterfly plate holder (3) with the sealing ring (4), the sealing ring (4) having a mounting state of rotational movement along the circumferential surface of the butterfly plate holder (3), in which mounting state the second positioning structure positionally mounts the sealing ring (4) on the butterfly plate holder (3).

5. Valve according to claim 4, wherein the second positioning means comprises at least one second positioning element (9), any second positioning element (9) being located on the butterfly plate holder (3), a second positioning slot being provided in the sealing ring (4) and adapted to the second positioning element (9), the second positioning element (9) being configured to be rotated into the second positioning slot upon a rotational movement of the sealing ring (4) relative to the butterfly plate holder (3).

6. Valve according to claim 5, wherein the butterfly plate frame (3) has a mounting surface for sealing contact with the sealing ring (4), and the second positioning slot opens in the mounting surface.

7. The valve according to claim 6, wherein the mounting surface of the butterfly plate frame (3) contacting the sealing ring (4) is stepped, and the second positioning slot is opened on the stepped mounting surface in a semi-open manner.

8. Valve according to claim 7, wherein any of said second positioning elements (9) is a positioning pin.

9. The valve according to claim 8, further comprising a valve rod (11), wherein one end of the valve rod (11) extends into the valve cavity (5), the butterfly plate frame (3) is disposed on a portion of the rod body of the valve rod (11) extending into the valve cavity (5), and the butterfly plate frame (3) and the valve body (1) are driven by the valve rod (11) to have an open state and a sealed closed state.