KR101421977B1 - Butterfly Valve with Lever and Lever for Butterfly valve - Google Patents

Butterfly Valve with Lever and Lever for Butterfly valve Download PDF

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Publication number
KR101421977B1
KR101421977B1 KR1020140055501A KR20140055501A KR101421977B1 KR 101421977 B1 KR101421977 B1 KR 101421977B1 KR 1020140055501 A KR1020140055501 A KR 1020140055501A KR 20140055501 A KR20140055501 A KR 20140055501A KR 101421977 B1 KR101421977 B1 KR 101421977B1
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KR
South Korea
Prior art keywords
lever
plate
auxiliary lever
auxiliary
butterfly valve
Prior art date
Application number
KR1020140055501A
Other languages
Korean (ko)
Inventor
박정헌
Original Assignee
박정헌
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Filing date
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Application filed by 박정헌 filed Critical 박정헌
Priority to KR1020140055501A priority Critical patent/KR101421977B1/en
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Publication of KR101421977B1 publication Critical patent/KR101421977B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B33/00—Hand tools not covered by any other group in this subclass
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F16K31/602—Pivoting levers, e.g. single-sided

Abstract

The present invention can prevent the auxiliary lever from being deformed while the conventional auxiliary lever is being used as it is, that is, the problem of damaging the manual lever caused by the eccentric butterfly valve, that is, deformation of the auxiliary lever. .

Description

[0001] The present invention relates to an eccentric butterfly valve having a manual lever,

The present invention relates to an eccentric butterfly valve and a manual lever connected thereto, and more particularly to an eccentric butterfly valve with a manual lever capable of preventing deformation of the auxiliary lever and a manual lever thereof.

In general, a pipe for supplying a fluid such as gas, steam, or oil is provided with a valve to intercept or connect the flow of the fluid as needed, or to control the flow rate of the fluid.

A conventional butterfly valve includes a fluid passage penetrated to allow fluid to pass therethrough, a disk rotatably mounted on the fluid passage to open and close the fluid passage, a rotating shaft extending upward from the disk, And a fixed lever. This valve operates to open and close the fluid passage by rotating the rotation shaft and the disk in conjunction with rotation of the lever.

Regarding the butterfly valve with the manual lever attached thereto, it is known that the lever type butterfly valve (registered in May 31, 2012), the registered utility model 20-0464860 in Korea Registered utility model No. 20-0460832 "(Registration on January 13, 2013) have been proposed.

On the other hand, the butterfly valve is divided into a center type and an eccentric type based on the position of the rotary shaft relative to the fluid passage.

In the center mold, the rotation axis passes through the center of the fluid passage, while the eccentric type is set such that the rotation axis is eccentric from the center of the fluid passage.

The eccentric butterfly valve has been proposed as a double eccentric type, a triple eccentric type, a quadruple eccentric type, and the like. Patent No. 10-0387306, No. 10-2012-0132810, 20-1989-0000976 are known.

As described above, in the center butterfly valve, the fluid pressure is uniformly applied to both sides of the disk about the rotation axis. However, the eccentric butterfly valve has different fluid pressures acting on both sides of the disk about the rotation axis, The force that the valve tries to open is continuously applied even when the valve is closed.

That is, in the eccentric butterfly valve as shown in FIG. 1, the rotary shaft is provided eccentrically with respect to the fluid passage, so that different fluid pressures are applied to both sides of the disk, resulting in rotational force acting on the disk.

In this way, the pressure of the fluid acting on the disk is transmitted to the manual lever via the rotation shaft, so that the manual lever receives the rotational force continuously.

Thus, in order to maintain the valve closed despite the rotational force transmitted to the manual lever, the manual lever must be able to be fixed in a certain position.

On the other hand, the butterfly valve with the manual lever is usually formed by a combination of the main lever and the auxiliary lever, and the upper end of the valve body is provided with a fixing plate in which a locking groove is continuously formed on the edge, So that the manual lever can be fixed at a specific position.

However, such a general manual lever structure does not cause any problems in the center butterfly valve, but in the eccentric butterfly valve, the rotational force due to the different fluid pressures generated in the disk causes deformation of the auxiliary lever, There is a situation in which the manual lever needs to be replaced due to extreme deformation of the auxiliary lever.

Korean Utility Model No. 20-0460832 entitled "Lever Type Butterfly Valve" (registered on May 31, 2012) Korean Registered Utility Model No. 20-0464860 entitled " lever-type butterfly valve "(registered on January 13, 2013)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the prior art as described above, and it is an object of the present invention to provide a main lever having a bending prevention plate for supporting both sides of a fixing end portion of the auxiliary lever, So as to prevent deformation of the auxiliary lever.

According to an aspect of the present invention, there is provided a valve device comprising: a valve body having a fluid passage formed therein; A rotation shaft provided eccentrically with respect to the fluid passage; A disk coupled to the rotating shaft to open and close the fluid passage; A fixing plate fixed to an upper portion of the valve body and formed with a continuous groove on an edge thereof; A main lever fixed to an upper end of the rotating shaft; An auxiliary lever hinged to the main lever, the auxiliary lever having its longitudinal inner leading end engaged with the latching groove of the fixing plate; A spring provided between the main lever and the auxiliary lever to elastically support the auxiliary lever so that the auxiliary lever is pivoted in the direction of engagement with the latching groove; Wherein the main lever is bent in a C-shape convex upward toward the top and is formed by a horizontal upper plate and a pair of upper side plates formed on both sides of the upper plate, A cover plate; and an auxiliary cover plate coupled to a lower inner side in the longitudinal direction of the upper cover plate; Wherein the auxiliary lever is composed of a horizontal lower plate and a pair of lower side plates formed on both sides of the lower plate, the metal plate having a thickness smaller than that of the upper cover plate is bent in a C shape convex downwardly; The lower plate of the auxiliary lever has a triangular shape with its longitudinal direction facing inward, and a pair of lower side plates of the auxiliary lever are in contact with each other while facing inward in the longitudinal direction, and the inner side in the longitudinal direction of the auxiliary lever forms a fixing end. A grip portion partially bent for gripping is formed in a longitudinal outer side portion of the lower plate of the auxiliary lever; Wherein the main lever is provided with an auxiliary lever receiving portion formed at a lower center thereof so as to support both sides of the fixing end portion of the auxiliary lever, and a bending prevention plate provided with a support leg protruding from both sides of the lower lever; Wherein the bending prevention plate is positioned between a longitudinally inner front end of the auxiliary lever and a portion where the auxiliary lever is hinged to the main lever; .

According to another aspect of the present invention, there is provided a valve apparatus comprising a valve body in which a fluid passage is formed, a rotating shaft that is eccentrically provided with respect to the fluid passage, a disk coupled to the rotating shaft to open and close the fluid passage, 1. A manual lever coupled to a rotating shaft of an eccentric butterfly valve comprising a fixed plate having a locking groove formed continuously, the manual lever comprising: a main lever fixed to an upper end of the rotating shaft; An auxiliary lever hinged to the main lever, the auxiliary lever having its longitudinal inner leading end engaged with the latching groove of the fixing plate; A spring provided between the main lever and the auxiliary lever to elastically support the auxiliary lever so that the auxiliary lever is pivoted in the direction of engagement with the latching groove; Wherein the main lever is composed of an upper cover plate formed of a horizontal upper plate and a pair of upper side plates formed on both sides of the upper plate, the metal plate being bent in a U- And an auxiliary cover plate coupled to the lower inner side in the longitudinal direction of the cover plate; Wherein the auxiliary lever is composed of a horizontal lower plate and a pair of lower side plates formed on both sides of the lower plate, the metal plate having a thickness smaller than that of the upper cover plate is bent in a C shape convex downwardly; The lower plate of the auxiliary lever has a triangular shape with its longitudinal direction facing inward, and a pair of lower side plates of the auxiliary lever are in contact with each other while facing inward in the longitudinal direction, and the inner side in the longitudinal direction of the auxiliary lever forms a fixing end. A grip portion partially bent for gripping is formed in a longitudinal outer side portion of the lower plate of the auxiliary lever; Wherein the main lever is provided with an auxiliary lever receiving portion formed at a lower center thereof so as to support both sides of the fixing end portion of the auxiliary lever, and a bending prevention plate provided with a support leg protruding from both sides of the lower lever; Wherein the bending prevention plate is positioned between a longitudinally inner front end of the auxiliary lever and a portion where the auxiliary lever is hinged to the main lever; .

In this case, the bending prevention plate may be fixedly coupled to the longitudinal outer end of the auxiliary cover plate.

As described above, according to the present invention, it is possible to prevent the auxiliary lever from being deformed while the conventional auxiliary lever is being used as it is, that is, the damage of the manual lever caused by the eccentric butterfly valve, Thereby enabling long-term use.

1 is a view showing a relationship between a fluid passage, a disk and a rotation axis in an eccentric butterfly valve,
2 is a perspective view of an eccentric butterfly valve with a manual lever according to an embodiment of the present invention,
Fig. 3 is an exploded perspective view of the main part of Fig. 2,
FIG. 4 is a perspective view of the manual lever of FIG. 2,
FIG. 5 is an exploded perspective view of FIG. 4,
Figure 6 is a conceptual cross-sectional view of the manual lever of Figure 2;
FIG. 7 is a plan view showing the relationship between the fixing plate and the manual lever in FIG. 2; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention in the drawings, portions not related to the description are omitted, and like reference numerals are given to similar portions throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIG. 2 is a perspective view of an eccentric butterfly valve with a manual lever according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the main part of FIG. 2, FIG. 4 is a perspective view of the manual lever of FIG. 5 is an exploded perspective view of FIG. 4, FIG. 6 is a conceptual cross-sectional view of the manual lever of FIG. 2, and FIG. 7 is a schematic plan view showing a relationship between a fixed plate and a manual lever in FIG.

The eccentric butterfly valve includes a valve body 110, a rotary shaft 120, a disk 130, a fixing plate 140, a manual lever 200, and the like.

A fluid passage (111) is formed in the valve body (110) so that fluid flows. The rotating shaft 130 is eccentrically disposed with respect to the fluid passage 111 and the disk 120 is coupled to the rotating shaft 130 to open and close the fluid passage 111. Since the eccentric butterfly valve is described above, a detailed description thereof will be omitted.

The relationship between the rotary shaft 130 and the fluid passage 111 in the eccentric butterfly valve can be confirmed in the example of FIG.

A fixing plate 140 is fixed to an upper portion of the valve body 110.

The term " inside in the longitudinal direction " means a direction toward the rotation shaft 130. [

The fixing plate 140 is formed with a continuous groove 141 at its edge. The fixing plate 140 has a sufficient thickness to prevent the shape of the fixing plate 140 from being deformed by the pressure received from the inner longitudinal end of the auxiliary lever 220.

In addition, the plurality of latching grooves 141 of the fixing plate 140 are continuously formed to have the same shape as the gear teeth.

The upper end of the rotary shaft 130 protrudes to the upper portion of the valve body 110 and the passive lever 200 is fixed to the upper end of the rotary shaft 130.

The manual lever 200 includes a main lever 210 whose inner end in the longitudinal direction is fixed to the rotating shaft 130 and an auxiliary lever 220 hinged to the main lever 210.

The inner end of the auxiliary lever 220 in the longitudinal direction has a shape that can be caught by the retaining groove 141 of the fixing plate 140.

A spring 230 is provided between the main lever 210 and the auxiliary lever 220 to elastically support the auxiliary lever 220 so that the auxiliary lever 220 rotates in the direction of engaging the latching groove 141.

A hinge 240 is provided for hinge coupling of the auxiliary lever 220 and the main lever 210.

The main lever 210 includes an upper cover plate 211, an auxiliary cover plate 212, a bending prevention plate 213, a shaft support 214, a fixing bolt 215, and the like.

The upper cover plate 211 is formed by a horizontal upper plate 211a and a pair of upper side plates 211b formed on both sides of the upper plate 211a.

The upper cover plate 211 is formed by bending a thick metal plate because its bending structure is relatively simple.

The auxiliary cover plate 212 is coupled to the lower inner side in the longitudinal direction of the upper cover plate 211.

The auxiliary cover plate 212 is a metal plate bent a plurality of times and the inner side in the longitudinal direction thereof is a rotating shaft penetrating portion 212a formed so as to penetrate the rotating shaft 130 together with the upper cover plate 211. The longitudinal outer end 212b ) Supports the upper surface of the fixing end portion 221 of the auxiliary lever 220.

In other words, the longitudinal outer end 212b of the auxiliary cover plate 212 serves to limit the range of rotation of the auxiliary lever 220.

A rotation shaft 130 passing through the shaft support 214 is provided between the auxiliary cover plate 212 and the upper cover plate 211. The rotation shaft 130 passes through the fixing bolt 214 215).

The shape of the fixing bolt 215 and the shaft stopper 214 may be changed into various shapes, and are not essential features of the present invention, and therefore, a detailed description thereof will be omitted.

On the other hand, the auxiliary lever 220 is formed by folding a metal plate having a thickness smaller than that of the upper cover plate 211 in a C-shape convexly downward and forming a pair of horizontal plates 222 and 222 formed on both sides of the lower plate 222 and the lower plate 222 And a lower side plate 223.

In addition, the inner end in the longitudinal direction of the auxiliary lever 220 has a structure that can be engaged with the latching groove 141 as the fixing end portion 221.

That is, the fixing end portion 221 has a triangular shape with the lower plate 222 of the auxiliary lever 220 facing inward in the longitudinal direction, and the pair of lower side plates 223 of the auxiliary lever 220 are inwardly So that they come into contact with each other.

A grip portion 222a is formed on the outer side of the lower plate 222 of the auxiliary lever 220 in the longitudinal direction.

Since the auxiliary lever 220 is formed by cutting and bending of the metal plate and has a relatively complicated structure such as the grip portion 222a, the auxiliary lever 220 has a relatively thin thickness (in the present embodiment, about 1 mm Of the thickness).

When the fixing end 221 of the auxiliary lever 220 is received in the engaging groove 141 of the fixing plate 140 and the rotational force of the disc 120 is transmitted to the inside of the auxiliary lever 220 in the longitudinal direction, Bending moment is generated between the longitudinal inner end and the inner longitudinal end.

Also, since the auxiliary lever 220 can only use a thin metal plate for molding or the like, when the disk 120 is subjected to a high rotational force, the auxiliary lever 220 is bent inward in the longitudinal direction of the auxiliary lever 220.

In order to solve such a problem, it is possible to attempt to manufacture the auxiliary lever 220 with a thick metal plate, but in this case, there is a problem that molding of the auxiliary lever 220 becomes difficult.

A method of welding a reinforcing rib or the like to the inside of the auxiliary lever 220 in the longitudinal direction may be considered. However, if the reinforcing rib or the like is welded to the thin auxiliary lever 220, the deformation of the auxiliary lever 220 There is a high possibility of occurrence.

In order to solve such a problem, the present invention adopts a method of attaching the bending prevention plate 213 to the auxiliary cover plate 212.

The bending prevention plate 213 is formed by processing a metal plate having a thickness greater than the thickness of the auxiliary lever 220. The auxiliary lever receiving portion 213a is formed at the lower center and the support legs 213b are formed at both sides of the lower lever.

The auxiliary lever 221 can be inserted into the auxiliary lever accommodating portion 213a at both sides of the fixing end 221 of the auxiliary lever 221, ). ≪ / RTI >

The bending prevention plate 213 is provided between the longitudinal inner end of the auxiliary lever 221 and the hinge 240. The bending prevention plate 213 is disposed between the longitudinal outer end of the auxiliary cover plate 212 212b.

The effect of the present invention can be clearly understood with reference to FIG.

The bending moment applied to the auxiliary lever 220 in the conventional method is determined according to the distance L1 between the longitudinal inner end of the auxiliary lever 220 and the point at which the hinge 240 is located.

However, in the present invention, the bending moment applied to the auxiliary lever 220 is determined according to the distance L2 between the inner end in the longitudinal direction of the auxiliary lever 220 and the point at which the bending prevention plate 213 is located.

According to this embodiment, the bending moment applied to the auxiliary lever 220 is reduced to about 1/6 in the present embodiment, Can be prevented.

The present embodiment has been described in which the bending prevention plate 213 is separately welded and fixed to the longitudinal outer end of the auxiliary cover plate 212.

However, the bending prevention plate 213 may be part of the auxiliary cover plate 212 according to the embodiment. When the auxiliary lever receiving portion 213a and the support leg 213b are formed at the longitudinal outer end of the auxiliary cover plate 212 at the time of manufacturing the auxiliary cover plate 212, ).

In the present embodiment, the conventional auxiliary cover plate 212 is used as it is, while the center butterfly valve does not adopt the bending prevention plate and the eccentric butterfly valve adopts the bending prevention plate to simplify the process itself .

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the embodiments described above are intended to be illustrative, but not limiting, in all respects. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

110: valve body 111: fluid passage
120: disk
130:
140: fixing plate 141:
200: Manual lever
210: main lever 211: upper cover plate
211a: upper plate 211b: upper side plate
212: auxiliary cover plate 212a: rotating shaft penetrating portion
212b: longitudinal outer end 213: bending prevention plate
213a: auxiliary lever accommodating portion 213b: support leg
214: Axial support 215: Fixing bolt
220: Auxiliary lever 221: Fixing end
222: Lower plate 222a:
223:
230: spring
240: Hinge

Claims (3)

A valve body having a fluid passage formed therein;
A rotation shaft provided eccentrically with respect to the fluid passage;
A disk coupled to the rotating shaft to open and close the fluid passage;
A fixing plate fixed to an upper portion of the valve body and formed with a continuous groove on an edge thereof;
A main lever fixed to an upper end of the rotating shaft;
An auxiliary lever hinged to the main lever, the auxiliary lever having its longitudinal inner leading end engaged with the latching groove of the fixing plate;
A spring provided between the main lever and the auxiliary lever to elastically support the auxiliary lever so that the auxiliary lever is pivoted in the direction of engagement with the latching groove;
The eccentric butterfly valve with a lever includes:
The main lever includes an upper cover plate formed of a horizontal upper plate and a pair of upper side plates formed on both sides of the upper plate, the metal plate being bent in a C shape convex upward toward the upper side, And an auxiliary cover plate coupled thereto;
Wherein the auxiliary lever is composed of a horizontal lower plate and a pair of lower side plates formed on both sides of the lower plate, the metal plate having a thickness smaller than that of the upper cover plate is bent in a C shape convex downwardly;
The lower plate of the auxiliary lever has a triangular shape with its longitudinal direction facing inward, and a pair of lower side plates of the auxiliary lever are in contact with each other while facing inward in the longitudinal direction, and the inner side in the longitudinal direction of the auxiliary lever forms a fixing end.
A grip portion partially bent for gripping is formed in a longitudinal outer side portion of the lower plate of the auxiliary lever;
Wherein the main lever is provided with an auxiliary lever receiving portion formed at a lower center thereof so as to support both sides of the fixing end portion of the auxiliary lever, and a bending prevention plate provided with a support leg protruding from both sides of the lower lever;
Wherein the bending prevention plate is positioned between a longitudinally inner front end of the auxiliary lever and a portion where the auxiliary lever is hinged to the main lever;
And an eccentric butterfly valve with a manual lever.
The eccentric butterfly valve according to claim 1, wherein the bending prevention plate is fixedly coupled to a longitudinal outer end of the auxiliary cover plate.
A valve body to which a fluid passage is formed, a rotating shaft that is eccentrically installed with respect to the fluid passage, a disk coupled to the rotating shaft to open and close the fluid passage, and a valve body fixed to an upper portion of the valve body, 1. A manual lever coupled to a rotational axis of an eccentric butterfly valve comprising a fixed plate, the manual lever comprising:
A main lever fixed to an upper end of the rotating shaft;
An auxiliary lever hinged to the main lever, the auxiliary lever having its longitudinal inner leading end engaged with the latching groove of the fixing plate;
A spring provided between the main lever and the auxiliary lever to elastically support the auxiliary lever so that the auxiliary lever is pivoted in the direction of engagement with the latching groove;
, ≪ / RTI >
The main lever includes an upper cover plate formed of a horizontal upper plate and a pair of upper side plates formed on both sides of the upper plate, the metal plate being bent in a C shape convex upward toward the upper side, And an auxiliary cover plate coupled thereto;
Wherein the auxiliary lever comprises a horizontal lower plate and a pair of lower side plates formed on both sides of the lower plate, the metal plate having a thickness smaller than that of the upper cover plate is bent in a C shape convex downwardly;
The lower plate of the auxiliary lever has a triangular shape with its longitudinal direction facing inward, and a pair of lower side plates of the auxiliary lever are in contact with each other while facing inward in the longitudinal direction, and the inner side in the longitudinal direction of the auxiliary lever forms a fixing end.
A grip portion partially bent for gripping is formed in a longitudinal outer side portion of the lower plate of the auxiliary lever;
Wherein the main lever is provided with an auxiliary lever receiving portion formed at a lower center thereof so as to support both sides of the fixing end portion of the auxiliary lever, and a bending prevention plate provided with a support leg protruding from both sides of the lower lever;
Wherein the bending prevention plate is positioned between a longitudinally inner front end of the auxiliary lever and a portion where the auxiliary lever is hinged to the main lever;
Wherein the eccentric type butterfly valve is a manual lever for an eccentric butterfly valve.
KR1020140055501A 2014-05-09 2014-05-09 Butterfly Valve with Lever and Lever for Butterfly valve KR101421977B1 (en)

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KR1020140055501A KR101421977B1 (en) 2014-05-09 2014-05-09 Butterfly Valve with Lever and Lever for Butterfly valve

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Application Number Priority Date Filing Date Title
KR1020140055501A KR101421977B1 (en) 2014-05-09 2014-05-09 Butterfly Valve with Lever and Lever for Butterfly valve

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613184A (en) * 2015-03-01 2015-05-13 侯如升 Multi-gear flow limiting valve
KR20240029186A (en) 2022-08-26 2024-03-05 삼성중공업 주식회사 Valve assembly with portable lever

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10122383A (en) * 1996-09-25 1998-05-15 Kijun Ri Disk pressure type butterfly valve
KR100663638B1 (en) 2006-08-02 2007-01-05 양세정 Lever type butterfly valve
WO2008105056A1 (en) 2007-02-26 2008-09-04 Tomoe Technical Research Company Ltd. Lever device for valve opening/closing operation
KR200460832Y1 (en) 2012-04-20 2012-06-08 주식회사 정도기계 Lever Type Butterfly Valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10122383A (en) * 1996-09-25 1998-05-15 Kijun Ri Disk pressure type butterfly valve
KR100663638B1 (en) 2006-08-02 2007-01-05 양세정 Lever type butterfly valve
WO2008105056A1 (en) 2007-02-26 2008-09-04 Tomoe Technical Research Company Ltd. Lever device for valve opening/closing operation
KR200460832Y1 (en) 2012-04-20 2012-06-08 주식회사 정도기계 Lever Type Butterfly Valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104613184A (en) * 2015-03-01 2015-05-13 侯如升 Multi-gear flow limiting valve
KR20240029186A (en) 2022-08-26 2024-03-05 삼성중공업 주식회사 Valve assembly with portable lever

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