KR101562497B1 - Valve with structure having improving operating performance of opening and shutting plate - Google Patents

Valve with structure having improving operating performance of opening and shutting plate Download PDF

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Publication number
KR101562497B1
KR101562497B1 KR1020140109593A KR20140109593A KR101562497B1 KR 101562497 B1 KR101562497 B1 KR 101562497B1 KR 1020140109593 A KR1020140109593 A KR 1020140109593A KR 20140109593 A KR20140109593 A KR 20140109593A KR 101562497 B1 KR101562497 B1 KR 101562497B1
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KR
South Korea
Prior art keywords
opening
circumferential surface
shaft
side wall
closing plate
Prior art date
Application number
KR1020140109593A
Other languages
Korean (ko)
Inventor
이여울
이명용
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이여울
이명용
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Priority to KR1020140109593A priority Critical patent/KR101562497B1/en
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Publication of KR101562497B1 publication Critical patent/KR101562497B1/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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/065—Construction of housing; Use of materials therefor of taps or cocks with cylindrical plugs
    • 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
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Abstract

The purpose of the present invention is to provide a valve of a structure for easily replacing an opening and closing plate whose replacement period is short as contact friction with a valve body is frequently generated. According to the present invention, the valve comprises: a valve body having an operating space inside, and having a cylindrical lateral wall surrounding the operating space; a shaft installed along a central shaft in the longitudinal direction of the cylindrical lateral wall; an inlet and an outlet communicates the operating space, and installed to be extended outwards from the cylindrical lateral wall; and an opening and closing plate combined with the shaft for opening and closing the inlet or the outlet according to rotation of the shaft. In the shaft, an upper disc installed to allow the outer circumferential surface to be in contact with the inner circumferential surface of the cylindrical lateral wall in the upper side of the inlet and outlet, and a lower disc installed to allow the outer circumferential surface to be in contact with the inner circumferential surface of the cylindrical lateral wall in the lower side of the inlet and outlet are fixed and combined. The opening and closing plate is a plate body installed to be attached to the inner circumferential surface as an upper end and a lower end are supported in the outer circumferential surface of the upper disc and the outer circumferential surface of the lower disc, and a curved surface with curvature which is the same with the inner circumferential surface of the cylindrical lateral wall is formed in an outer surface.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a valve having an improved operating performance of an opening / closing plate,

The present invention relates to a valve having an improved operating performance of an open / close plate, and more particularly, to an open / close valve having a structure in which a valve body is in close contact with an inner surface of a valve body, To the operation of the plate.

The opening / closing or directional switching valve is installed in a tube forming a passage of the fluid, and regulates or blocks the flow of the fluid.

In order to perform such operation, an opening / closing member for closing or opening the fluid inlet / outlet port is provided in the inner space of the opening / closing or direction switching valve in accordance with the rotation angle (90 degrees or 180 degrees) And the ball member is often rotatably arranged as the opening / closing member.

Such a ball member must have a size proportional to the diameter of the tube for blocking the inlet or the like. Since a large diameter ball must be used for the large tube, the capacity of the actuator for rotating the ball is also large It must be. Resulting in an increase in production cost, and difficulty in fabrication and repair.

In order to solve such a problem, a segment ball valve in which the shape of the ball member is deformed to reduce its weight is used.

1 shows a structure of such a segment ball valve as disclosed in Korean Patent Publication No. 10-0975337.

The segment ball valve includes a valve body 1, a shaft 2, a segment 3 and a valve seat 6

The segment 3 is rotatably mounted in the inner space of the valve body 1 and the first and second shafts 2a and 2b are rotatably mounted on the upper and lower ends of the valve body 1, The segment 3 is fixed to the first and second shafts 2a, 2b.

Therefore, the segment 3 can be rotated by the rotation of the first and second shafts 2a, 2b to open and close the flow path.

However, in the case of the above-mentioned conventional segment ball valve, since the shaft 2 (2a, 2b) is divided into the first and second shafts 2a, 2b on the upper and lower sides, It is difficult to fabricate the segment 3 to be closely contacted to the valve seat 6.

Particularly, in the bearing portion of the valve body 1 in which the first and second shafts 2a and 2b are supported, that is, the bearing mounting portion for supporting the first and second shafts 2a and 2b, The first and second shafts 2a and 2b supporting the segment are pushed to move the segment 3 and the valve seat 6 ). This lowers the operating performance of the valve and causes leakage of the fluid to be shut off.

In addition, since the segment 3 is manufactured so as to have a shape of a part of a spherical ball valve, its shape is not simple, and it is necessary to make it precisely, and maintenance cost for repair and replacement is relatively high have.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a valve body which has a simple structure and maintains a better close contact state with the inner circumferential surface of the valve body during operation, To provide a valve of a structure that can be minimized.

It is another object of the present invention to provide a valve having a structure in which the opening and closing means for opening or closing the flow path is simply constituted and can be easily replaced.

According to an aspect of the present invention, there is provided a valve apparatus including a valve body having a working space and a cylindrical side wall surrounding the working space, a shaft installed along a longitudinal center axis of the cylindrical side wall, An inlet port and an outlet port communicating with the working space and extending outwardly from the cylindrical side wall; and an opening / closing plate coupled to the shaft and opening / closing the inlet or outlet according to the rotation of the shaft, An upper disk provided on the upper side of the inlet and the outlet so as to contact the inner circumferential surface of the cylindrical side wall and a lower disk fixed to the lower disk provided on the lower side of the inlet and outlet so as to contact the inner circumferential surface of the cylindrical side wall, Wherein the opening / closing plate has an outer circumferential surface And a curved surface having the same curvature as that of the inner circumferential surface of the cylindrical sidewall is formed on the outer surface of the lower disk and is installed in close contact with the inner circumferential surface.

In addition, the upper disk may be provided with an upper seating groove formed on the upper disk along the outer circumferential surface to have the same length as the upper end of the opening / closing plate and on which the upper end of the opening / closing plate is seated, And a lower seating groove formed at a lower end of the plate so as to have the same shape as the lower end of the plate and on which the lower end of the opening plate is seated is provided and the shaft extends from the shaft to the opening plate between the upper disk and the lower disk, The intermediate support body is further provided with an elastic body for pushing the open / close plate so as to bring the open / close plate into close contact with the inner circumferential surface of the cylindrical side wall, wherein the open / The lower seating jaw, the elastic body, By being supported by the contact of the inner surface and the cylindrical side wall of the group, and that by the elastic member when released from the cylindrical side wall is separated from the upper disc and the lower disc to the other features.

Further, the present invention is characterized in that the cylindrical side wall includes an operating seat which forms an inner circumferential surface thereof and reduces frictional force, and the upper disk and the lower disk are in contact with the operating sheet.

According to another aspect of the present invention, there is provided a flow rate adjusting through hole, which is provided in a direction in which the curvature is formed on the opening / closing plate and gradually increases in size from one side to the other side, .

In the valve according to the present invention, the upper disk and the lower disk always land on the operating seat so that the shaft and the upper and lower disks are not pushed by the fluid pressure, so that the open / Even if pressure is applied, the flow path can be tightly closed to prevent leakage of the fluid.

In particular, since the opening and closing plate can always be brought into close contact with the operating seat by the elastic body provided on the intermediate support body, even if the valve body can not firmly support the shaft, The leakage of the fluid can be minimized by being brought into close contact with the operating sheet.

Further, according to the present invention, when the shaft, the upper and lower disks, and the opening and closing plate are removed from the valve body and taken out, the opening and closing plate can be immediately separated from the upper and lower disks at the time when the opening and closing plate is separated from the cylindrical side wall. It is possible to complete the installation by inserting the open / close plate into the valve body by bringing the open / close plate into close contact with the upper seating jaw of the upper disk and the lower seating jaw of the lower disk, and replacement due to abrasion and deformation of the opening / closing plate can be very easily performed.

Further, since the flow rate adjusting through-hole is formed in the opening and closing plate of the present invention, the flow rate can be adjusted according to the rotation of the shaft, and the entire structure for controlling the flow rate can be very simplified.

1 is a sectional view of a conventional segment ball valve
2 is an exploded perspective view of a valve having a structure in which the operating performance of the opening and closing plate according to the embodiment of the present invention is improved.
3 is a longitudinal sectional view of a valve having a structure in which the operating performance of the open / close plate according to the embodiment of the present invention is improved.
FIG. 4 is a cross-sectional view of a valve according to an embodiment of the present invention,
5 is an explanatory view of an assembling process of a valve having a structure in which the operating performance of the open / close plate according to the embodiment of the present invention is improved.
6 is an exploded perspective view of a valve having an improved operating performance of the opening and closing plate according to another embodiment of the present invention.
FIG. 7 is a cross-sectional view of a valve according to another embodiment of the present invention,
8 is a longitudinal sectional view and operation explanatory view of a valve having a structure in which the operating performance of the open / close plate according to another embodiment of the present invention is improved.
9 is a cross-sectional view of a valve having a structure in which the operating performance of the opening and closing plate according to another embodiment of the present invention is improved.
FIG. 10 is an exploded perspective view showing a configuration in which an O-ring is provided on the entire surface of the open / close plate in a valve having a structure in which the operating performance of the open /

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is an exploded perspective view of a valve having an improved operating performance of the open / close plate according to an embodiment of the present invention. FIG. 3 is a cross- And FIG. 4 is a cross-sectional view of a valve having a structure in which the operating performance of the open / close plate according to the embodiment of the present invention is improved.

2 through 4, the valve according to the embodiment of the present invention includes a valve body 10 having a working space 11 therein and a cylindrical side wall 13 surrounding the working space 11, A shaft 20 provided along a longitudinal central axis 13a of the cylindrical side wall 13 and an inlet 20 communicating with the operating space 11 and extending outwardly from the cylindrical side wall 13 And an opening and closing plate 40 that is coupled to the shaft 20 and opens and closes the inlet 31 or the outlet 32 according to the rotation of the shaft 20.

The valve body 10 is a part of a valve housing and includes a cylindrical side wall 13 and a bottom plate 18 covering the bottom of the cylindrical side wall 13 and a cover plate 17 covering the top.

The cylindrical side wall 13 is formed in a cylindrical shape, and an operation space 11, which is a hollow space of a cylinder, is formed therein.

An inlet port 31 and an outlet port 32 are provided so as to extend outward from the cylindrical side wall 13. The inlet port 31 and the outlet port 32 communicate with the operating space 11 and fluid flows into the operating space 11 Influx and outflow.

The cylindrical side wall 13 includes an operating seat 13b which forms an inner circumferential surface thereof and reduces frictional force. The operation seat 13b is a cylindrical metal sheet having a hole formed therein so that the inlet port 31 and the outlet port 32 are communicated with the operating space 11 so as to be closely fitted around the operating space 11, And an inner peripheral surface 13c is formed.

Thus, the upper disc 51 and the lower disc 52 come into contact with the operating seat 13b to reduce the frictional force during the friction movement, thereby facilitating the rotation of the upper disc 51 and the lower disc 52. [

The shaft 20 is installed along the longitudinal center axis 13a of the cylindrical side wall 13 and serves as a rotating shaft for rotating the opening and closing plate 40. The shaft 20 is rotatably supported by the bearing 73 of the cover plate 17 and the bearing 74 of the lower plate 18 and the handle 72 is coupled to the upper end of the shaft 20, .

The upper disk 51 and the lower disk 52 are fixedly coupled to the shaft 20 to support the open / close plate 40.

The upper disk 51 is in contact with the inner circumferential surface of the cylindrical side wall 13 at the upper side of the inlet 31 and the outlet 32 at the circumferential whole with the operating seat 13b, A sliding motion occurs.

Further, the upper disc 51 is provided with an upper seating step 51a along the outer circumferential surface thereof. The upper seating portion 51a is a portion in which the upper end of the open / close plate 40 is seated and supported. The upper seating portion 51a is formed with a step shape having a concave shape around the outer circumferential surface of the upper disk 51, As shown in Fig.

Since the open / close plate 40 is a curved surface forming a circumferential surface having a predetermined angle in the range of 90 to 180 degrees with respect to the shaft 20, the upper seating step 51a is formed in the same angular range as that of the open / close plate 40 Is supported and supported.

The lower disk 52 is fixedly coupled to the shaft 20 and is disposed on the inner peripheral surface of the cylindrical side wall 13 at the lower side of the inlet port 31 and the outlet port 32, And a sliding motion occurs in the entire circumference when the shaft 20 rotates.

The lower disk 52 is also provided with a lower seating jaw 52a along its outer circumference. The lower seating recess 52a is formed with a step having a concave shape around the outer circumferential surface of the lower disk 52 with the same length as the lower end of the opening and closing plate 40, So that the lower end of the open / close plate 40 is seated and supported.

Since the opening / closing plate 40 has a curved shape forming a circumferential surface at an angle of 90 to 180 degrees with respect to the shaft 20, the lower seating step 52a is formed in the same manner, The lower end is seated and supported.

The outer circumferential surface of the upper disc 51 and the lower disc 52 are continuously brought into contact with the inner circumferential surface 13c of the cylindrical side wall 13, that is, the circumferential whole of the operating seat 13b, (13b) so as not to be pushed by the pressure of the fluid blocked by the valve seat (40). This maintains a close contact state between the open / close plate 40 and the operating seat 13b to prevent fluid leakage.

An intermediate support 54 is further provided on the shaft 20 to support the opening and closing plate 40 between the upper disk 51 and the lower disk 52.

The intermediate support body 54 does not need to be formed in a disc shape unlike the upper disc 51 and the lower disc 52 and is provided between the upper disc 51 and the lower disc 52 so that the shaft 20 To the opening / closing plate 40 side.

The arc-shaped outer peripheral surface 54a of the intermediate support body 54 is formed to have the same curvature as that of the inner surface 40b of the open / close plate 40 so that the inner surface 40b of the open / Shaped outer peripheral surface 54a of the intermediate support body 54 contacts and supports the intermediate portion of the open / close plate 40 in a state in which the upper and lower supports 50 and 40 are seated on the upper and lower seating tails 51a and 52a.

The intermediate support body 54 is further provided with an elastic body 60 for pushing the open / close plate 40 so as to bring the open / close plate 40 into close contact with the inner peripheral surface of the cylindrical side wall 13.

When the elastic body 60 is compressed and installed in the mounting hole 54b formed at a predetermined depth from the outer peripheral surface of the intermediate support 54 toward the opening and closing plate 40, the opening and closing plate 40 is pushed by the elastic force And is brought into close contact with the inner circumferential surface of the cylindrical side wall 13, that is, the operating seat 13b.

It is preferable that the installation hole 54b in which the elastic body 60 is installed is directed to the center portion which is the center of the width and length of the opening and closing plate 40. [

There is a slight manufacturing error with respect to the bearing portion where the shaft 20 is supported and the outer peripheral surfaces 51c and 52c of the upper disk 51 and the lower disk 52 due to the provision of the elastic body 60, The open / close plate 40 can be held by the elastic body 60 so as to be always in close contact with the operating seat 13b, so that the pressure of the fluid at the inlet port 31, which is closed, Can be prevented.

The upper disk 51 and the lower disk 52 and the intermediate support 54 are integrally welded to the shaft coupling body 56 in the form of a hollow rod so that the shaft 20 is inserted into the shaft coupling body 56 The installation of the upper disk 51, the lower disk 52 and the intermediate support 54 is completed in the shaft 20. [

The opening and closing plate 40 is a plate member for opening and closing the inlet port 31 or the outlet port 32 according to the rotation of the shaft 20 and is a curved plate member having the same curvature as the inner circumferential surface of the cylindrical side wall 13. That is, both the outer surface 40a and the inner surface 40b have a curved surface having the same curvature as the inner circumferential surface of the cylindrical side wall 13, so that the outer surface can be closely attached to the inner circumferential surface of the cylindrical side wall 13.

The opening and closing plate 40 has an upper end 41 and a lower end 42 supported by the outer circumferential surface of the upper disk 51 and the outer circumferential surface of the lower disk 52, And the upper end 41 and the lower end 42 are seated on the lower seating surface 52a of the lower disk 52 so as to be supported in the radially inward direction in which the upper and lower sides and the shaft 20 are positioned by contact with them And in the radially outward direction, it is in close contact with the operating seat 13b and is supported by the operating seat 13b.

Therefore, the open / close plate 40 is in a state of being in simple contact with neither the upper disc 51 nor the lower disc 52, the intermediate support member 54 nor the cylindrical side wall 13 by the engaging means, The opening and closing plate 40 can be immediately separated from the upper disk 51 and the lower disk 52 and the intermediate support 54 by pulling the disk 40 out of the cylindrical side wall 13.

FIG. 5 is an explanatory view illustrating a process of assembling a valve having an improved operating performance of the open / close plate according to the embodiment of the present invention.

5, when the valve according to the embodiment of the present invention is assembled, the upper end 41 and the lower end 42 of the open / close plate 40 are connected to the upper seating seat 51a and the lower seating seat 52a So that the upper disk 51 and the lower disk 52 are coupled to each other. The coupling is in a state of being in simple contact with the upper mounting seam 51a of the upper disk 51 and the lower mounting seam 52a of the lower disk 52 without any separate fastening means. The opening and closing plate 40 is pressed against the elastic body 60 exposed from the installation hole 54b of the intermediate support body 54, .

Thereafter, when the shaft 20, the upper and lower disks 51 and 52, and the opening and closing plate 40 are inserted into the cylindrical side wall 13 in a state where they are coupled to each other as shown in FIG. 5, the cylindrical side wall 13 To the working space (11) of the vehicle.

3, the outer surface of the open / close plate 40 and the outer circumferential surfaces of the upper and lower disks 51 and 52 are in contact with the inner circumferential surface 13c of the cylindrical side wall 13, that is, the operating sheet 13b And the cover plate 17 is bolted to the cylindrical side wall 13 to complete the installation of the shaft 20 and the open / close plate 40.

4, the elastic body 60 always brings the opening / closing plate 40 close to the side of the operating seat 13b, so that even when the pressure of the fluid in the inlet 31 is applied to the opening / closing plate 40, 40 can be maintained.

Further, even if the clearance is excessively present due to the failure of the bearing mounting portion of the valve body 10 supporting the shaft 20 from the upper side and the lower side, the upper disk 51 and the lower disk 52 in the " C " And is supported by the operating seat 13b so as not to be pushed by the fluid pressure of the inlet port 31. This is supported by the rotation of the shaft 20 and the rotation of the opening and closing plate 40 in the same manner.

Therefore, the upper disc 51 and the lower disc 52 are moved from the " C "portion to the operating sheet 13b (or the lower disc) by the fluid pressure of the inlet 31 so that the shaft 20 and the upper and lower discs 51 and 52 are not pushed. And the opening and closing plate 40 is always in close contact with the operating seat 13b by the elastic body 60. Such a combination of the structures makes it possible to prevent the valve body 10 The opening and closing plate 40 can minimize the leakage of the fluid without being pushed by the fluid pressure of the inlet port 31 even if the shaft 20 is not firmly supported or there is a cause of occurrence of the gap by abrasion or the like due to long term use.

When the shaft 20, the upper and lower disks 51 and 52 and the open / close plate 40 are removed from the valve body 10, the cover plate 17 is removed and the insertion direction The shaft 20 is pulled out in a direction opposite to the direction in which the shaft 20 is pulled out.

At the time when the shaft 20, the upper and lower disks 51 and 52 and the opening and closing plate 40 are separated from the cylindrical side wall 13, the opening and closing plate 40 is pushed by the elastic body 60, If the opening and closing plate 40 needs to be replaced due to wear of the opening and closing plate 40, the opening and closing plate 40 can be easily replaced and reinstalled in the above-described process.

The following describes a valve having a structure that improves the operating performance of the opening and closing plate according to another embodiment of the present invention.

FIG. 6 is a perspective view of a valve having an improved operating performance of the opening and closing plate according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view of the valve.

In the present embodiment, there is a difference in the configuration of the open / close plate 40, and the other configurations are the same as those in the above embodiment.

That is, as shown in FIG. 6, the opening / closing plate 40 is provided with a flow rate adjusting through hole 45 for adjusting the flow rate in a direction in which the curvature is formed, so that the flow rate can be adjusted according to the rotation of the shaft 20 .

The flow rate controlling through hole 45 is provided with a flow rate controlling through hole 45 which gradually increases in size from one side toward the other side along the direction in which the curvature is formed, that is, the circumferential direction of the cylindrical side wall 13.

It is preferable that the flow rate controlling through hole 45 is provided on the upper and lower sides of the opening and closing plate 40 and an intermediate support portion 46 is provided therebetween so as to be contacted with and supported by the intermediate support body 54 therebetween.

As the shaft 20 rotates as shown in FIG. 7, the flow rate of the flow-adjusting through-hole 45 of the opening / closing plate 40 can be determined according to the area where the through- The flow rate can be adjusted by adjusting the angle.

8 is a perspective view of a valve having a structure in which the operating performance of the opening and closing plate according to another embodiment of the present invention is improved, a driving device 80 for rotating the shaft 20 is installed, .

On the upper surface of the upper disk 51, several to several magnets 84 are provided at regular intervals around the shaft 20. For example, 36 magnets 84 may be arranged at intervals of 10 degrees on the upper surface of the upper disk 51 about the shaft 20.

The movement of the magnet 84 along with the rotation of the shaft 20 is detected by the detection sensor 82 provided on the cover plate 17 and counted by the number of the passing magnets 84 and detected by the drive device 80 Signal.

The drive device 80 can continuously receive the sensing signal to adjust the rotation angle of the shaft 20 and adjust the position of the through hole 45 of the open / The flow area can be adjusted because the area of contact can be adjusted.

FIG. 9 is a sectional view of a valve according to another embodiment of the present invention. FIG. 9 is a cross-sectional view of a valve according to another embodiment of the present invention. And it is possible to open and close a plurality of inlets 31 and outlets 32. [

9, the shaft 20 can be pulled out to easily replace the opening / closing plate 40, and the closing action of the opening / closing plate 40 and the closing action of the upper disk 51 and the lower disk 52 can be prevented, The same operation takes place.

On the other hand, FIG. 10 shows a configuration in which an O-ring is provided on the front surface 40a of the open / close plate 40 in the valve having the improved operating performance of the open / close plate according to FIG.

That is, the O-ring mounting groove 49 is formed in an annular shape on the front surface 40a of the opening / closing plate 40 so that the O-ring 91 is installed, and the diameter of the O-ring 91 is larger than the diameter of the inlet 31.

Accordingly, when the opening and closing plate 40 blocks the fluid by blocking the inlet 31, the inlet 31 is positioned so as to surround the O-ring 91 between the opening and closing plate 40 and the operating seat 13b, So that leakage of the fluid can be more reliably prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular embodiments set forth herein. It goes without saying that other modified embodiments are possible.

10: valve body 11: working space
11: cylindrical side wall 13b: operating sheet
13c: inner peripheral surface 17: cover plate
18: bottom plate 20: shaft
31: inlet 32: outlet
40: open / close plate 40a: outer surface
40b: inner surface 41: top
42: bottom 45: through hole
51: upper disk 51a: upper mounting chin
51c: outer peripheral surface 52: lower side disk
52a: lower mounting chin 51c: outer peripheral surface
54: intermediate support body 54a: outer peripheral surface
54b: installation hole 56: shaft coupling agent
60: elastic body 72: handle
73: Bearings 74: Bearings
80: drive device 82: detection sensor
84: magnet 91; O-ring

Claims (4)

(10) having a working space (11) inside and having a cylindrical side wall (13) surrounding the working space (11)
A shaft 20 installed along a longitudinal center axis of the cylindrical side wall 13,
An inlet 31 and an outlet 32 communicating with the operating space 11 and extending outwardly from the cylindrical side wall 13,
(40) coupled to the shaft (20) and opening / closing the inlet (31) or the outlet (32) in accordance with rotation of the shaft (20)
In the shaft 20,
An upper disc 51 provided on the upper side of the inlet 31 and the outlet 32 so as to contact the outer circumferential surface of the cylindrical side wall 13 around the inner circumferential surface of the cylindrical side wall 13,
A lower disk 52 is fixedly coupled to the lower end of the inlet 31 and the outlet 32 so that the outer circumferential surface of the lower disk 52 is in contact with the inner circumferential surface of the cylindrical side wall 13,
The open / close plate (40)
A curved surface having the same curvature as that of the inner circumferential surface of the cylindrical side wall 13 is formed on the outer surface of the upper disc 51 and the outer circumferential surface of the lower disc 52 and is installed in close contact with the inner circumferential surface, The upper body,
The upper disk 51 is formed with an upper seating groove 51a formed to have the same length as the upper end of the opening and closing plate 40 in a concave shape along the outer circumferential surface and on which the upper end 41 of the opening and closing plate 40 is seated, Respectively,
The lower disk 52 has a lower seating surface 52a formed to have the same length as the lower end of the opening and closing plate 40 in a recessed shape along the outer circumferential surface and on which the lower end 42 of the opening and closing plate 40 is seated, Lt; / RTI >
The shaft 20 is provided with an intermediate support member 40 extending from the shaft 20 toward the opening and closing plate 40 between the upper disc 51 and the lower disc 52 to support the inner surface of the opening and closing plate 40. [ (54)
The intermediate support body 54 is further provided with an elastic body 60 for pushing the opening and closing plate 40 so as to bring the opening and closing plate 40 into close contact with the inner peripheral surface of the cylindrical side wall 13,
The open / close plate (40)
The upper seating step 51a and the lower seating step 52a are supported by the contact between the elastic body 60 and the inner peripheral surface of the cylindrical side wall 13,
Is separated from the upper disc (51) and the lower disc (52) by the elastic body (60) when released from the cylindrical side wall (13) The method according to claim 1,
The cylindrical side wall 13 includes an operation seat 13b which forms an inner peripheral surface thereof and reduces frictional force,
Characterized in that the upper disc (51) and the lower disc (52) are in contact with the actuating seat (13b). 3. The method according to claim 1 or 2,
The opening / closing plate 40 is provided with a curvature forming direction, and is provided with a flow rate adjusting through hole 45 whose size gradually increases from one side to the other, so that the flow rate can be adjusted in accordance with the rotation of the shaft 20 A valve having a structure that improves the operating performance of the open / close plate delete
KR1020140109593A 2014-08-22 2014-08-22 Valve with structure having improving operating performance of opening and shutting plate KR101562497B1 (en)

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KR1020140109593A KR101562497B1 (en) 2014-08-22 2014-08-22 Valve with structure having improving operating performance of opening and shutting plate

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109163139A (en) * 2018-11-16 2019-01-08 台州必拓阀门有限公司 A kind of anti-theft type electrical ball valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008215626A (en) * 2008-06-13 2008-09-18 Toto Ltd Cylinder valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008215626A (en) * 2008-06-13 2008-09-18 Toto Ltd Cylinder valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109163139A (en) * 2018-11-16 2019-01-08 台州必拓阀门有限公司 A kind of anti-theft type electrical ball valve
CN109163139B (en) * 2018-11-16 2023-09-26 台州必拓阀门有限公司 Antitheft electric ball valve

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