KR101647580B1 - Gate valve with linkage structure - Google Patents

Gate valve with linkage structure Download PDF

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Publication number
KR101647580B1
KR101647580B1 KR1020150012165A KR20150012165A KR101647580B1 KR 101647580 B1 KR101647580 B1 KR 101647580B1 KR 1020150012165 A KR1020150012165 A KR 1020150012165A KR 20150012165 A KR20150012165 A KR 20150012165A KR 101647580 B1 KR101647580 B1 KR 101647580B1
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KR
South Korea
Prior art keywords
gate board
gate
board
valve
valve body
Prior art date
Application number
KR1020150012165A
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Korean (ko)
Other versions
KR20160091710A (en
Inventor
리추안 양
Original Assignee
킹 라이 하이제닉 머티리얼즈 캄파니 리미티드
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Application filed by 킹 라이 하이제닉 머티리얼즈 캄파니 리미티드 filed Critical 킹 라이 하이제닉 머티리얼즈 캄파니 리미티드
Priority to KR1020150012165A priority Critical patent/KR101647580B1/en
Publication of KR20160091710A publication Critical patent/KR20160091710A/en
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Publication of KR101647580B1 publication Critical patent/KR101647580B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations

Abstract

A gate valve having a connecting structure includes at least a power cylinder, a valve body having a valve opening, a main gate board and a gas-tight gate board, which are disposed adjacent to one another and are connected to one end of the gastight gate board by at least one parallel linkage. A gate assembly, and at least a press bar, one end pivotally connected to the airtight gate board and the other end extending to form a press end. The linkage bar is pivotally connected to the press bar and also pivotally connected to the main gate board. Accordingly, the gate assembly is driven to seal the valve opening, and the airtight gate board moves away from the main gate board having the linkage function, and a sealing force is generated to maintain airtightness between the airtight gate board and the valve opening .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gate valve having a connection structure,

The present invention relates to a vacuum valve which is driven by sealing structures of valves and, more particularly, by a connecting structure for sealing a hermetic valve board with respect to the valve opening.

In TWI 316997, as shown in Figs. 1A, 1B, and 1C, a vacuum gate valve applies a control unit (e.g., a hydraulic and rotating unit), whereby the valve stem extends in two directions So that the valve not only moves linearly (parallel to the valve opening) along the valve stem axis to cover the valve opening, but also moves vertically relative to the valve opening. Thereby, when the valve board moves to the valve opening, the valve board forms an additional sealing force on the valve opening to ensure air-tightness between the valve board and the valve opening .

This prior art, however, requires a moving track controlling mechanism, such as a slide rail, which is usually arranged in the position of the hydraulic cylinder, wherein the valve board of a vacuum valve with different models or sizes, The different sizes of the valve openings will be accurately and individually calculated so that the valve board can be moved to the valve openings and tightly seal the valve openings. In the unlikely event that the valve board does not cover the valve opening in parallel, the valve board may not be able to adequately seal the valve opening. As a result, the airtightness of the vacuum valve is not achieved. Also, after repeated use over a long period of time, wear and accuracy variations of the control unit can occur, and also the control unit is usually placed in a vacuum valve depth, making maintenance difficult.

In order to solve the above-mentioned problems, the present invention describes a gate valve having a connecting structure. As the gate assembly moves to align with the valve opening, the airtight gate board of the gate assembly may move vertically toward the valve opening using the linkage so that the airtight gate board firmly covers the valve opening.

The present invention relates to a valve gate having a connection structure,

A power cylinder provided with at least a drive shaft that can move in the axial direction;

A hollow valve body having an open end with one end and a cylinder seat for receiving the power cylinder, the axial bore passing through the cylinder seat for passing the drive shaft through the valve body, A hollow valve body disposed on the lateral side of the valve body adjacent the end;

A gate assembly disposed in the valve body and provided with a main gate board and an airtight gate board adjacent to the main gate, the main gate board being connected to an end portion of the airtight gate board using at least a parallel linkage; And

At least one end of the linkage bar is pivotally connected in the middle of the press bar, one end of which is pivotally connected to the end portion of the airtight gate board and the other end of which is extended toward the cover to form a press end, And the other end of which is pivotally connected to the end of the main gate board.

The main object of the present invention is that the gate assembly is driven to move in the axial direction by the drive shaft. When the gate assembly is aligned with the valve opening, the press end of the press bar is pressed and the airtight gate board is moved away from the main gate board by the linkage effect formed by the press bar, linkage bar and parallel linkage, The airtight gate board moves toward the valve opening to securely seal the valve opening.

It is another object of the present invention to provide a method and apparatus for maintenance and repair of the present invention. During maintenance, the user simply has to open the cover and unscrew the screw member between the gate assembly and the drive shaft, thereby allowing the entire gate assembly to be removed for repair or replacement, Time cost can be greatly reduced.

Yet another object of the present invention is that at least the stationary member is disposed at the open end of the valve body. The stop member is axially aligned with the press end of the press bar. As the gate assembly moves to be axially aligned with the valve opening, the press end contacts the stop member, thereby driving the airtight gate board to move while the stop member has a counterforce of the pressing force. As a result, the overall structural strength is improved and maintenance of the stationary member is facilitated.

Another object of the present invention is that at least through grooves are disposed on the main gate board. The roller bearings are pivotally disposed in the through grooves and the roller bearings partially protrude on the side surfaces of the main gate board adjacent to the airtight gate board. In addition, the airtight gate board is provided with a recessed push groove for receiving a roller bearing. When the airtight gate board is operated, the roller bearings operate in conjunction with the push groove to distribute the counterforce generated by the airtight gate board, thereby preventing the airtight gate board from bending and deforming, Thereby increasing the service life.

1 is a perspective view of a gate valve having a connection structure according to the present invention.
2 is a partially exploded view of a gate valve having a connection structure according to the present invention.
3 is a second partial exploded view of a gate valve having a connecting structure according to the present invention.
4 is a schematic view illustrating a step of installing the stationary member provided by the present invention.
5 is a partial cross-sectional view of a gate valve having a connection structure according to the present invention.
6 is a schematic partial cross-sectional view illustrating an operating process of the present invention.
FIG. 7 is a schematic partial cross-sectional view of a second part illustrating the operating process of the present invention. FIG.
8 is a partial cross-sectional schematic view illustrating an operation process of the roller bearing of the present invention.
9 is a second partial sectional schematic view illustrating an operation process of the roller bearing of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other advantages and features of the present invention will be understood with reference to the description of a preferred embodiment with reference to the accompanying drawings, It does not have a real component ratio.

1 to 4, the present invention is directed to a gate valve having a connecting structure, including at least a power cylinder 10, a hollow valve body 20, a gate assembly 30, and at least a press bar 40, Lt; / RTI >

The power cylinder 10 is provided with a drive shaft 11 which can move in the axial direction.

The hollow valve body 20 has one end thereof with an open end 21 to which the cover 22 is provided and the other end thereof provided with a cylinder seat 23 for receiving the power cylinder 10. The shaft bore 24 passes through the cylinder seat 23 to pass the drive shaft 11 through the valve body 20 and into the valve body 20. Wherein at least the valve opening 25 is located on the side of the valve body 20 adjacent the open end 21 and the hole 26 is located on the side of the valve body 20 facing the valve opening 25, And is disposed on the side surface.

The gate assembly 30 is disposed in the valve body 20 and is provided with a main gate board 31 and a neighboring air tight gate board 32 on the main gate board 31. The main gate board 31 is screwed to the end of the drive shaft 11 using a screw member 311. [ Here, the main gate board 31 is connected to the end portion of the airtight gate board 32 using at least a parallel linkage 33. The main gate board 31 is connected to the airtight gate board 32 using two parallel linkages 33 disposed between the opposite ends of the airtight gate board 32, The structure is formed between the main gate board 31, the two parallel linkages 33, and the airtight gate board 32. In a more preferred embodiment, a 4-linkage structure is formed.

At least a through groove (34) is disposed between both ends of the main gate board (31). The roller bearing 35 is pivotally disposed on the through groove 34 using the shaft 351 and the roller bearing 35 is disposed on the side surface 34 of the main gate board 31 adjacent to the airtight gate board 32. [ Lt; / RTI > Further, the airtight gate board 32 is provided with a recessed groove 36 for accommodating the roller bearing 35 therein. The push groove 36 has a first section 361 and a second section 362 wherein the depth of the first section 361 is deeper than the depth of the second section 362 The second section 362 is positioned at one end of the push groove 36 adjacent the open end 21.

One end of the press bar 40 is pivotally connected to the end portion of the airtight gate board 32 and the other end of the press bar 40 extends toward the cover 22 to form the press end 41. The bearing member 411 is disposed at the press end 41. Here, one end of the linkage bar 42 is pivotally connected to the middle portion of the press bar 40, and the other end of the linkage bar 42 is pivotally connected to the end of the main gate board 31. 3, the linkage bar 42 extends in a direction away from the airtight gate board 32 at a pivot junction between the linkage bar 42 and the main gate board 31, The bar 40 has a shape similar to the L shape. In a preferred embodiment, each end of the gate assembly 30 is provided with a press bar 40, respectively.

Also, at least the stop member 50 is disposed at the open end 21 of the valve body 20. The two interior walls of the open end 21 of the valve body 20 are each provided with symmetrically arranged arc recesses 51 for receiving the stop member 50 and the stop member 50 is also provided, Both of which are arc-shaped ends. Here, the length of the stop member 50 is greater than the width of the opening of the open end 21. 4, the stop member 50 is disposed obliquely to the open end 21 and subsequently rotated to engage both ends of the stop member 50 with the arc recess 51. As shown in Fig. 2, the stop member 50 is provided with an engage end 52 convex on the side of the cover 22, and on the inner side of the cover 22, the engaging end 52 is received At least a position groove 53 is provided concavely. 5, when the cover 22 is secured to the open end 21, the locating groove 53 is positioned so that the stopping member 50 does not leave the arc recess 51 , The position of the stop member 50 can be fixed.

Here, at least the spring member 37 is disposed between the main gate board 31 and the airtight gate board 32. [ 3, one end of the spring member 37 is connected to the shaft 351 of the roller bearing 35 and the other end is fixed to the airtight gate board 32 so that the airtight gate board 32, So that an elastic traction force can be formed on the main gate board 31. In a preferred embodiment, the drive shaft 11 is centered in the gate assembly 30 and each side of the gate assembly 30 is provided with a roller bearing 35 and a push groove 36, And two spring members 37 are disposed on the spring member 351, respectively.

In addition to the above configuration, the operation of the present invention is illustrated below.

5, when the valve opening 25 is open, the gate assembly 30 is disposed at one end of the valve body 20 facing the open end 21, Is leaned against the main gate board (31). On the other hand, the roller bearing 35 is disposed in a deeper first section 361 of the push groove 36.

6, when the valve opening 25 is closed, the drive shaft 11 of the power cylinder 10 is moved toward the open end 21 along the drive shaft 11 with respect to the valve opening 25 And drives the gate assembly 30 to move in parallel in the axial direction. The bearing member 411 of the press end 41 comes into contact with the stopping member 50 and the stopping motion of the stopping member 50 is stopped when the gate assembly 30 is approximately aligned with the valve opening 25, The member 50 imposes a counter force on the press end 41 to press the press bar 40. Since the pivotal connection between the linkage bar 42 and the main gate board 31 is a fixed center axis, when the press end 41 of the press bar 40 has a pressing force, the linkage bar 42 And is thereby rotated counterclockwise with respect to the pivotal connection A as the central axis so that the airtight gate board 32 is closed until the airtight gate board 32 tightly seals the valve opening 25, The press bar 40 presses the airtight gate board 32 away from the main gate board 31 in order to move the airtight gate plate 32 toward the valve opening 25 side.

At the same time, since the main gate board 31, the two parallel linkages 33, and the airtight gate board 32 form a parallelogram connecting structure, the press bar 40 is moved to the side of the airtight gate board 32 The upper and lower ends of the airtight gate board 32 are ensured to averagely move to assure that the airtight gate board 32 is reliably supported on the valve opening 25 on average. This prevents the airtightness from being weakened due to the unevenness of the valve opening 25.

8 and 9, when the airtight gate board 32 is actuated, the roller bearing 35 thus moves to the second section 362 of the push groove 36. As shown in Fig. In addition, due to the depth of the second section 362, when the airtight gate board 32 moves away from the main gate board 31, the roller bearing 35 remains leaning against the airtight gate board 32. Accordingly, when the gate valve having the connecting structure of the present invention has a larger size, the plurality of roller bearings 35 and the corresponding push grooves 36 disperse the counterforce generated by the airtight gate board 32 Thereby preventing the airtight gate board 32 from bending and deforming and ensuring airtightness between the airtight gate board 32 and the valve opening 25 and providing the stability and use of the present invention Increases life span.

On the other hand, when the valve opening 25 is reversibly opened, the power cylinder 10 operates to lower the drive shaft 11 and the gate assembly 30. As the bearing member 411 of the press end 41 gradually deviates from the stopping member 50, the spring member 37 is urged against the airtight gate board 32 and the main gate board 31 so as to lean against each other using an elastic traction force. Thereby allowing the airtight gate board 32 to leave the valve opening 25 and allow the valve opening 25 to open.

In addition, the maintenance of the present invention is easy and time-saving. During maintenance, only the user is required to open the cover 22 and unscrew the screw member between the gate assembly 30 and the drive shaft 11, thereby allowing the entire gate assembly 30 to perform a maintenance or replacement process , Thereby reducing the time cost for shutting down the machine during maintenance.

Although specific embodiments of the invention have been described in detail for purposes of illustration, various modifications and improvements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not limited except as by the appended claims.

Claims (9)

At least a power cylinder provided with a drive shaft axially movable;
A cylinder seat for accommodating the power cylinder, and an axial bore for passing the drive shaft through the valve body, the hollow valve body (holoow valve a hollow valve body having at least a valve opening disposed on a side surface of the valve body adjacent the open end;
A gate assembly disposed in the valve body and provided with a main gate board and a neighboring air-tight gate board on the main gate board and a main gate board connected to an end of the drive shaft, Wherein the main gate board is connected to an end portion of the airtight gate board using at least a parallel linkage; And
At least one press bar having one end pivotally connected to the end portion of the airtight gate board and the other end extending toward the cover to form a press end, one end of the linkage bar being pivotally connected to the middle of the press bar, The other end of the linkage bar being pivotally connected to the end of the main gate board, having a connection structure including a press bar, and
A stop member is disposed at the open end of the valve body, and two arc recesses are provided in the inner wall of the open end of the valve body to receive the stop member, - Gate valve with shaped end. The gate valve according to claim 1, wherein a bearing member is provided at the press end of the press bar. delete delete The gate valve according to claim 1, wherein the stop member is provided with an engage end convexly toward the cover, and a position groove for receiving the engaging end is provided on an inner side surface of the cover. The gate valve according to claim 1, wherein the length of the stop member is larger than the width of the opening of the open end. At least a power cylinder provided with a drive shaft axially movable;
A cylinder seat for accommodating the power cylinder, and an axial bore for passing the drive shaft through the valve body, the hollow valve body (holoow valve a hollow valve body having at least a valve opening disposed on a side surface of the valve body adjacent the open end;
A gate assembly disposed in the valve body and provided with a main gate board and a neighboring air-tight gate board on the main gate board and a main gate board connected to an end of the drive shaft, Wherein the main gate board is connected to an end portion of the airtight gate board using at least a parallel linkage; And
At least one press bar having one end pivotally connected to the end portion of the airtight gate board and the other end extending toward the cover to form a press end, one end of the linkage bar being pivotally connected to the middle of the press bar, The other end of the linkage bar being pivotally connected to the end of the main gate board, having a connection structure including a press bar, and
Wherein at least a through groove is disposed on the main gate board, the roller bearing is pivotally disposed in the through groove, the roller bearing partially protruding on the side surface of the main gate board adjacent to the airtight gate board, Wherein a push groove is provided concavely for receiving the roller bearing. 8. The pushrod according to claim 7, wherein the push groove is provided with a first section and a second section, the depth of the first section being deeper than the depth of the second section and the second section being located at one end of the push groove adjacent to the open end The gate valve is positioned. The gate valve according to claim 1, wherein at least a spring member is disposed between the main gate board and the airtight gate board.
KR1020150012165A 2015-01-26 2015-01-26 Gate valve with linkage structure KR101647580B1 (en)

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KR1020150012165A KR101647580B1 (en) 2015-01-26 2015-01-26 Gate valve with linkage structure

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Application Number Priority Date Filing Date Title
KR1020150012165A KR101647580B1 (en) 2015-01-26 2015-01-26 Gate valve with linkage structure

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KR20160091710A KR20160091710A (en) 2016-08-03
KR101647580B1 true KR101647580B1 (en) 2016-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230032195A (en) * 2021-08-30 2023-03-07 주식회사 엘에이티 Fluid controlling slot valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257751A (en) * 1999-03-10 2000-09-19 Shin Meiwa Ind Co Ltd Vacuum gate valve
JP2002276828A (en) * 2001-03-21 2002-09-25 Shin Meiwa Ind Co Ltd Vacuum gate valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH061940U (en) * 1992-06-10 1994-01-14 住友重機械工業株式会社 Vacuum gate valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000257751A (en) * 1999-03-10 2000-09-19 Shin Meiwa Ind Co Ltd Vacuum gate valve
JP2002276828A (en) * 2001-03-21 2002-09-25 Shin Meiwa Ind Co Ltd Vacuum gate valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230032195A (en) * 2021-08-30 2023-03-07 주식회사 엘에이티 Fluid controlling slot valve
KR102524474B1 (en) 2021-08-30 2023-04-24 주식회사 엘에이티 Fluid controlling slot valve

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