KR101444195B1 - Butterfly valve - Google Patents

Butterfly valve Download PDF

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Publication number
KR101444195B1
KR101444195B1 KR1020140025795A KR20140025795A KR101444195B1 KR 101444195 B1 KR101444195 B1 KR 101444195B1 KR 1020140025795 A KR1020140025795 A KR 1020140025795A KR 20140025795 A KR20140025795 A KR 20140025795A KR 101444195 B1 KR101444195 B1 KR 101444195B1
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KR
South Korea
Prior art keywords
valve
shaft
linear motion
rotation
rotating
Prior art date
Application number
KR1020140025795A
Other languages
Korean (ko)
Inventor
진종근
김종열
Original Assignee
주식회사 디에이치콘트롤스
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Publication date
Application filed by 주식회사 디에이치콘트롤스 filed Critical 주식회사 디에이치콘트롤스
Priority to KR1020140025795A priority Critical patent/KR101444195B1/en
Application granted granted Critical
Publication of KR101444195B1 publication Critical patent/KR101444195B1/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224—Details of bearings for the axis of rotation
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The present invention relates to a butterfly valve which includes a valve body; a disk-shaped valve disk opening and closing a flow channel of the valve body; a valve shaft extended from an edge of one side of the valve disk to interlock the valve disk while being normally and reversely rotated; and a driving transfer unit provided at an upper side of the valve body to transfer driving force to the valve shaft, changing the rotary motion according to the normal and reverse rotations to a linear motion, and changing the linear motion into the normal and reverse rotations of the valve shaft. Reducing the volume of the whole apparatus, weight reduction, and compactification is possible, and maintaining accurate opening/closing and operating positions is possible even when a loss in working fluid occurs.

Description

Screw-tight butterfly valve {BUTTERFLY VALVE}

The present invention relates to a butterfly valve, and more particularly, to a butterfly valve capable of reducing the volume of the entire apparatus, making it lightweight and compact, and capable of accurately opening / will be.

A general butterfly valve opens and closes the flow path of the valve body as the central axis crossing the disk-shaped disk that opens and closes the flow path of the valve body rotates forward and reverse.

In order to open and close the flow path of the valve body with such a central axis having a rotational force, a driving device is mounted on the central axis of the disk.

However, in such a general butterfly valve, when a loss of the working fluid occurs, the disk of the butterfly valve may flow due to the flow of the working fluid in the pipe, thereby causing an accident such as leakage.

In addition, these actuators have a similar volume to the entire valve, and for industrial large and high pressure valves, they have considerable volume and load, which is a significant constraint on installation.

Therefore, it is urgent to develop a device capable of reducing the volume of the entire device, making it lightweight and compact, and capable of accurately opening and closing and maintaining the operating position even with loss of the operating fluid.

Utility Model Application No. 20-2006-0003902 Patent Application No. 10-2008-0116327

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a butterfly valve capable of reducing the volume of the entire apparatus, making it lightweight and compact, .

According to an aspect of the present invention, A disk-shaped valve disk for opening and closing the flow path of the valve body; A valve stem extending from one side edge of the valve disc and interlocking with the valve disc in forward and reverse directions; And a valve body provided on the valve body and transmitting a driving force to the valve shaft to convert the rotational motion in the forward and reverse directions into a linear motion and convert the converted linear motion into forward and reverse rotation of the valve shaft And a drive transmission unit (30).

The butterfly valve includes a valve flange extending from one side of the valve body and having the valve shaft incorporated therein, and a drive shaft connected to the valve flange, the end of the valve shaft being built in, And an auxiliary flange in which a transmission part is incorporated.

In this case, the drive transmission unit may include: a first rotation unit including the drive transmission unit and rotating forward and reverse in an auxiliary flange provided at one side of the valve body; and a second rotation unit connected to the first rotation unit, And a second turning part coupled to the linear motion part and provided at an end of the valve shaft to convert the reciprocating linear motion of the linear motion part into forward and reverse rotation, .

The first rotating part includes an operating shaft penetrating through the auxiliary flange and screwing and rotating in the forward and reverse directions, and a first bearing provided at an end of the operating shaft.

The linear motion portion includes a rack gear having gears engaged with the pinion provided at the end portion of the valve shaft along the longitudinal direction, a second bearing provided at the end portion of the rack gear, And a coupling for receiving the second bearing.

The second rotary part includes a pinion gear-engaged with the rack gear of the linear motion part and provided at an end of the valve shaft.

The first rotating portion includes an operating shaft penetrating through the auxiliary flange and screwing and rotating in the forward and reverse directions, a first support bearing supporting the rotation of the operating shaft and mounted on an outer surface of the auxiliary flange, A first support nut mounted on an outer surface of the support bearing and rotating the operation shaft in place, a second support bearing supporting the rotation of the operation shaft and mounted on the inner surface of the auxiliary flange, And a joint fixed to the second fixing nut and connected to the linear motion part. The first fixing nut may be a flat plate.

The linear motion part includes a connecting piece which is screwed with the joint of the first rotating part and rotates in the forward and reverse directions, a rotatably coupled to the end of the connecting piece, and linearly reciprocating along the forward and reverse rotations of the connecting piece, And a gear engaged with the second rotary part provided at an end of the valve shaft includes a rack gear formed along the longitudinal direction.

In addition, the second rotating portion includes a pinion gear-engaged with the rack gear and provided at an end portion of the valve shaft.

According to the present invention having the above-described configuration, since the valve shaft is provided with the drive transmission portion that converts the rotational motion into the linear motion and converts the converted linear motion into the forward and reverse rotation of the valve shaft, And it is possible to realize compactness, and to accurately open and close and maintain the operating position even with loss of the working fluid.

1 is a conceptual diagram showing the overall configuration of a butterfly valve according to an embodiment of the present invention.
2 is a conceptual diagram showing the overall configuration of a butterfly valve according to another embodiment of the present invention.
3 is a conceptual diagram showing the overall configuration of a butterfly valve according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms.

Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components.

For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram showing the overall configuration of a butterfly valve according to an embodiment of the present invention.

It can be understood that the valve disc 200, the valve shaft 300, and the drive transmission unit 500 are mounted on the valve body 100 as shown in FIG.

The valve disc 100 is a disc-like member that opens and closes the flow path of the valve element 100. The valve disc 300 is connected to the valve disc 200, So that the valve disk 200 is interlocked with the valve disk 200 while rotating forward and backward.

The drive transmitting portion 500 is provided on the upper side of the valve body 100 to transmit a driving force to the valve shaft 300 so as to convert the rotational motion resulting from forward and reverse rotation into linear motion, To the forward and reverse rotations of the shaft (300).

It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or scope of the invention.

The present invention comprises a valve flange 110 extending from one side of a valve body 100 and having a valve shaft 300 embedded therein and a valve flange 110 connected to the valve flange 110, And an auxiliary flange 120 having a drive transmission part 500 incorporated therein and connected to the valve shaft 300 may be applied.

The drive transmission unit 500 transmits the driving force to the valve shaft 300 through the motion conversion and includes a first rotation unit 510, a linear motion unit 530, and a second rotation unit 520. [ As shown in FIG.

The first rotation part 510 includes the drive transmission part 500 and rotates in the forward and reverse directions at the auxiliary flange 120 provided at one side of the valve body 100.

The linear motion unit 530 is connected to the first rotation unit 510 and converts the forward and reverse rotation of the first rotation unit 510 into reciprocating linear motion.

The second rotary part 520 is coupled to the linear motion part 530 and is provided at an end of the valve shaft to convert the reciprocating linear motion of the linear motion part 530 into forward and reverse rotation.

Specifically, the first rotating part 510 includes an operating shaft 511 that is threaded through the auxiliary flange 120 and is forward and reverse rotatable, a first bearing (not shown) provided at an end of the operating shaft 511, Lt; RTI ID = 0.0 > 512 < / RTI >

The second rotary part 520 includes a pinion 521 that is gear-engaged with the rack gear 531 of the linear motion part 530 and is provided at an end of the valve shaft 300, .

The linear motion unit 530 includes a rack gear 531 having gears coupled to the pinion 521 provided at the end of the valve shaft 300 along the longitudinal direction, 2 bearing 532, a first bearing 512 of the first rotational part 510 and a coupling 533 that receives the second bearing 532. [

Therefore, the operation of the butterfly valve according to one embodiment of the present invention will be briefly described. When the operator rotates the operation handle 511h or rotates by mounting an actuator such as a drive motor instead of the operation handle 511h When the rack gear 531 advances through the coupling 533 in accordance with the rotation of the operation shaft 511, the pinion 521 rotates while being engaged with the disc shaft 200, and the disc 200 connected to the valve shaft 300 rotates in one direction, Operation.

Here, if the pitch of the thread between the operation shaft 511 and the auxiliary flange 120 is increased or decreased in order to increase or decrease the operating torque, the rotational force can be increased or decreased.

It should be understood that the present invention is also applicable to the embodiment described above, and it is also possible to apply the embodiment in which the operation shaft 511 rotates in place while the linear motion unit 530 is linearly reciprocating as shown in FIG.

That is, the first turning part 510 of the butterfly valve according to another embodiment of the present invention includes an operating shaft 511, a first supporting bearing 513, a first fixing nut 514, and a second supporting bearing 515 The second fixing nut 516, and the joint 517. [0156]

That is, the operation shaft 511 is threaded through the auxiliary flange 120 and rotated in the forward and reverse directions.

Here, if the pitch of the thread between the operation shaft 511 and the auxiliary flange 120 is increased or decreased in order to increase or decrease the operating torque, the rotational force can be increased or decreased.

The first support bearing 513 supports the rotation of the operation shaft 511 and is mounted on the outer surface of the auxiliary flange 120. The first support nut 514 is mounted on the outer surface of the first support bearing 513 , And causes the operation shaft 511 to rotate in place.

The second support bearing 515 supports the rotation of the operation shaft 511 and is mounted on the inner surface of the auxiliary flange 120. The second fixing nut 516 is tightly coupled to the second support bearing 515, Thereby causing the shaft 511 to rotate in place.

The joint 517 is coupled to the linear motion part 530 by being fastened to the second fixing nut 516.

The linear motion part 530 includes a connection piece 534 which is screwed with the joint 517 and rotates in the forward and reverse directions and a connection part 534 which is rotatably coupled to the end part of the connection piece 534, It can be understood that the gear includes a rack gear 531 which is linearly reciprocating and formed with a gear along the longitudinal direction, which is engaged with the second turning part 520 provided at the end of the valve shaft 300.

At this time, it can be understood that the second rotation part 520 is gear-engaged with the rack gear 531 and includes the pinion 521 provided at the end of the valve shaft 300.

The operation of the butterfly valve according to another embodiment of the present invention will be briefly described below.

First, when the operator rotates the operation handle 511h or rotates by mounting an actuator such as a drive motor instead of the operation handle 511h, the joint 517 connected to the operation shaft 511 is rotated according to the rotation of the operation shaft 511, The connecting piece 534 screwed to the joint 517 performs a linear reciprocating motion in which the forward and reverse move forward and backward so that the rack gear 531 reciprocates linearly and reciprocates forward and backward.

At this time, the pinion 521 is engaged with the rack gear 531, and the disk 200 connected to the valve shaft 300 rotates in one direction to perform opening and closing operations.

As described above, it is a basic technical idea to provide a butterfly valve capable of reducing the volume of the entire apparatus, making it lightweight and compact, and capable of accurately opening and closing and maintaining the operating position even with loss of working fluid. .

In addition, within the scope of the basic technical idea of the present invention, those skilled in the art will appreciate that in addition to the above-described rack and pinion structure, a first bearing 512 is provided at the end (540, scotch yoke) structure that converts the rotational motion of the operating shaft 511 screwed to the auxiliary flange 120 into a linear motion and a turning operation.

A link piece 541 that is linearly reciprocated while being rotatably supported by a third bearing 543 on a coupling 544 that receives the first bearing 512, It is needless to say that many other modifications and applications are possible, such as adopting the structure of the scarc yoke 540 type structure including the crank piece 542 rotatable on the valve shaft 300 at the other end.

100 ... valve body
110 ... valve flange
120 ... Auxiliary flange
200 ... valve disc
300 ... valve shaft
500 ... drive transmission portion
510 ... First rotation part
511 ... operating axis
511h ... Operation handle
512 ... first bearing
513 ... first support bearing
514 ... first fixing nut
515 ... second support bearing
516 ... second fixing nut
517 ... joint
520 ... second rotation part
521 ... pinion
530 ... linear motion part
531 ... rack gear
532 ... second bearing
533 ... coupling
534 ... connecting piece

Claims (9)

A valve body;
A disk-shaped valve disk for opening and closing the flow path of the valve body;
A valve stem extending from one side edge of the valve disc and interlocking with the valve disc in forward and reverse directions; And
And a drive unit that is provided on the valve body and transmits driving force to the valve shaft to convert the rotational motion in the forward and reverse rotations into linear motion and convert the linear motion into the forward and reverse rotations of the valve shaft, And a transmission portion,
Wherein the drive transmission portion includes:
A first rotary motion part which rotates in the forward and reverse directions in the auxiliary flange provided on one side of the valve body,
A linear motion part connected to the first rotation part and converting the forward and reverse rotation of the first rotation part into a reciprocating linear motion,
And a second turning part coupled to the linear motion part and provided at an end of the valve shaft to convert the reciprocating linear motion of the linear motion part into forward and reverse rotation,
Wherein the first rotating portion includes:
A working shaft screwed through the auxiliary flange and rotating forward and backward,
And a first bearing provided at an end of the operating shaft.
The method according to claim 1,
The butterfly valve comprises:
A valve flange extending from one side of the valve body and having the valve shaft therein,
Further comprising an auxiliary flange connected to the valve flange and including an end of the valve shaft and having the drive transmission portion connected to the valve shaft.
delete delete The method according to claim 1,
The linear motion portion
A rack gear having a gear engaged with a pinion provided at an end of the valve shaft and formed along the longitudinal direction,
A second bearing provided at an end of the rack gear,
A first bearing of the first turning portion and a coupling for receiving the second bearing.
The method according to claim 1,
And the second rotation-
And a pinion gear-engaged with the rack gear of the linear motion part and provided at an end of the valve shaft.
The method according to claim 1,
Wherein the first rotating portion includes:
A working shaft screwed through the auxiliary flange and rotating forward and backward,
A first support bearing for supporting the rotation of the operating shaft and mounted on an outer surface of the auxiliary flange,
A first fixing nut mounted on an outer surface of the first support bearing and rotating the operation shaft in place,
A second support bearing for supporting the rotation of the operating shaft and mounted on an inner surface of the auxiliary flange,
A second fixing nut tightly coupled to the second support bearing and rotating the operation shaft in place,
And a joint fastened to the second fixing nut and connected to the linear motion part.
The method according to claim 1,
The linear motion portion
A connecting piece which is screwed with the joint of the first rotating part and rotates in the forward and reverse directions,
A rack gear rotatably coupled to an end portion of the connecting piece and linearly reciprocating according to forward and reverse rotations of the connecting piece, and a gear coupled with the second rotating portion provided at an end portion of the valve shaft, Wherein the butterfly valve comprises:
The method of claim 8,
And the second rotation-
And a pinion gear-coupled to the rack gear, the pinion being provided at an end of the valve shaft.
KR1020140025795A 2014-03-05 2014-03-05 Butterfly valve KR101444195B1 (en)

Priority Applications (1)

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KR1020140025795A KR101444195B1 (en) 2014-03-05 2014-03-05 Butterfly valve

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Application Number Priority Date Filing Date Title
KR1020140025795A KR101444195B1 (en) 2014-03-05 2014-03-05 Butterfly valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102004641B1 (en) * 2018-01-22 2019-07-26 강희숙 Disc Horizontal Shifting Type Butterfly Valve
KR102624602B1 (en) * 2023-07-10 2024-01-12 남영전설(주) Outlet box for electric vehicle charging

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417127U (en) * 1977-07-04 1979-02-03
KR20110076081A (en) * 2009-12-29 2011-07-06 삼성중공업 주식회사 Closing valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417127U (en) * 1977-07-04 1979-02-03
KR20110076081A (en) * 2009-12-29 2011-07-06 삼성중공업 주식회사 Closing valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102004641B1 (en) * 2018-01-22 2019-07-26 강희숙 Disc Horizontal Shifting Type Butterfly Valve
KR102624602B1 (en) * 2023-07-10 2024-01-12 남영전설(주) Outlet box for electric vehicle charging

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