KR101736392B1

KR101736392B1 - a gate valve similar to blind valve

Info

Publication number: KR101736392B1
Application number: KR1020150133958A
Authority: KR
Inventors: 김태연; 김중연
Original assignee: 김태연; 김중연
Priority date: 2015-09-22
Filing date: 2015-09-22
Publication date: 2017-05-16
Also published as: KR20170035185A

Abstract

The present invention relates to a gate valve, and a blind valve type gate valve according to the present invention is a gate valve which is provided between a pipe and a pipe to open or shut off a pipe, comprising: a valve body having front and rear openings; A vertical moving unit for vertically moving the blind to open and shut off the duct, and a vertical movement unit for vertically moving the blind to vertically move the blind, A front and rear horizontal moving ring which is screwed to the outer circumferential surfaces of the front and rear seats respectively; and a front and rear horizontal moving ring which rotates the front and rear horizontal moving rings, A horizontal seat which pushes the ring seat toward the blind side It characterized in that it comprises a braking unit.

Description

[0001] The present invention relates to a blind valve,

The present invention relates to a gate valve, and more particularly, to a blind valve type gate valve capable of opening and closing a channel while maintaining airtightness such as a blind valve.

The blind valve is installed on the piping to shut off or open the fluid flow, or to block or separate the fluid inflow or mixing between the pipelines of the different kinds of fluids. .

A gate valve is a valve that is installed in the middle of a pipeline to shut off the flow path and is a valve that is not suitable for fine control of the flow rate by using a shutoff plate which is moved at right angles to the flow of the fluid.

Prior art related to such a blind valve includes the application No. 10-2014-0084903 (filed on Apr. 17, 2008) and No. 10-2014-0084906 (filed on Apr. 14, 2014) filed in the Korean Intellectual Property Office, Related prior arts include a number of applications such as application number 10-2008-031487 (filed December 24, 2008).

In the ship or plant industry, gate valves and blind valves must be installed in order to shut off the flow path of the piping and completely shut off the flow of the fluid, and this structure has a problem of increasing plant installation cost.

That is, the conventional blind valve must operate the blind while blocking the flow of the fluid through the gate valve provided at the front end.

A blind valve type gate valve according to the present invention is intended to provide a gate valve capable of performing the function of a blind valve.

A blind valve type gate valve according to the present invention is a gate valve installed between a pipe and a pipe for opening or closing a pipe, comprising: a valve body having front and rear openings; Front and rear seats formed inside the valve body at front and rear openings; A blind inserted between the front and rear sheets; A vertical moving unit for vertically moving the blind to open and shut off the channel; Front and rear ring seats contacting the outer circumferential surfaces of the front seat and the rear seat, respectively; An O-ring provided on the blind contact surface of the front and rear ring sheets and the front and rear seat contact surfaces, respectively; Front and rear horizontal moving rings respectively screwed to outer peripheral surfaces of the front and rear sheets; And a horizontal movement unit for rotating the front and rear horizontal movement rings to push the front and rear ring sheets toward the blind side, wherein the horizontal movement unit comprises: a pair of horizontal coaxial axes arranged on the valve body for horizontally moving; A horizontal driving part for horizontally moving the pair of horizontal coaxial axes; and a horizontal driving part for horizontally moving the pair of horizontal coaxial axes, the horizontals being connected to the protruding parts of the front and rear horizontal moving rings, And a connecting portion for rotating the moving ring.

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The vertical movement unit may include a vertically moving coaxial shaft having one end fixed to the blind, and a vertical driving unit rotating the coaxial vertical shaft.

Finally, the vertical movement unit includes a rack gear formed on the side surface of the blind, a guide portion provided on the valve body to guide the movement of the blind, And a driving motor connected to the driving gear to move the blinds together.

The blind valve type gate valve according to the present invention is advantageous in that the front and rear ring seats are brought into close contact with the blind using a horizontal moving unit so that the airtight function of the gate valve can be performed while maintaining airtightness in the form of a blind valve.

Particularly, there is an advantage that the valve can be operated even in the state where the fluid flows.

1 is a perspective view showing a blind valve type gate valve according to a preferred embodiment of the present invention;
2 is a sectional view showing a blind valve type gate valve according to a preferred embodiment of the present invention;
3 is an enlarged view of a portion A in Fig.
4 is a side sectional view showing a blind valve type gate valve according to a preferred embodiment of the present invention.
FIG. 5 is an exploded perspective view of FIG. 1; FIG.
6 is an exploded perspective view showing blind valve type gate valves according to another preferred embodiment of the present invention.

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

A blind valve type gate valve according to the present invention is a gate valve which is installed between a pipe and a pipe to open or shut off a pipeline, and is capable of maintaining airtightness by closely adhering a blind such as a blind valve.

1 is a perspective view showing a blind valve type gate valve according to a preferred embodiment of the present invention.

As shown in FIG. 1, the outer appearance of the present invention is similar to that of the conventional blind valve. The opening 110 is formed in the front and rear of the valve body 100, and the flow path is opened / closed through the blind 200, A vertical movement unit 400 for moving the blind 200 and a horizontal movement unit 500 for maintaining airtightness of the blind.

2 is a cross-sectional view showing a blind valve gate valve according to a preferred embodiment of the present invention.

As shown in FIG. 2, openings 110 and 120 are formed at front and rear sides of the valve body 100 to form a flow path, and the flow path is opened and closed through a vertically moving blind 200.

In this valve body 100, a horizontal moving unit and a vertical moving unit are installed.

First, the front and rear sheets 130 and 140 are formed inside the valve body 100 and the blind 200 is inserted between the front and rear sheets 130 and 140. This structure adopts a structure similar to a conventional gate valve.

Next, a vertical moving unit will be described.

The vertically moving unit vertically moves the blind 200 to open and shut off the channel. More specifically, the vertically moving unit 210 has a vertically moving coaxial shaft 210 whose one end is fixed to the blind 200, And a vertical driving unit 220 for rotating the vertical driving unit 210. The vertical driving unit 220 may use a manual mechanism using a worm gear or an automatic mechanism using a driving motor.

That is, when the coaxial shaft 210 is vertically rotated through the vertical driving unit 220, the blind 200 is lifted to open the channel.

Such a vertically movable unit may be applied in other forms.

6 is an exploded perspective view showing blind valve type gate valves according to another preferred embodiment of the present invention.

6, the vertical movement unit includes a rack gear 208 formed on a side surface of the blind 200, a guide portion 290 installed on the valve body to guide movement of the blind, And a drive motor 402 and a drive motor 404.

This structure transfers the driving force directly to the blind so that the blind moves smoothly.

Next, a structure for maintaining confidentiality will be described.

3 is an enlarged view of a portion A in Fig.

As shown in Fig. 3, to the outer circumferential surfaces of the front seat 130 and the rear seat 140 to the front and rear ring seats 310, 320, respectively.

O rings 380 and 390 are provided on the contact surfaces of the blind 200 and the front and rear sheets 130 and 140 of the front and rear sheets 130 and 140, respectively.

Since the front and rear sheets 130 and 140 are provided with the front and rear horizontal movement rings 360 and 370 in a screwed manner, the structure of the conventional blind valve has been proposed in which the ring sheet is closely attached to various shapes, .

However, in the present invention, the front and rear ring seats 310 and 320 are simultaneously pushed to the blind side to maintain airtightness.

The horizontal movement unit performs the role of rotating the front and rear horizontal movement rings 360 and 360 to push the front and rear ring seats 310 and 320 toward the blind side.

Therefore, the following will discuss the horizontal movement unit.

4 is a side sectional view showing a blind valve type gate valve according to a preferred embodiment of the present invention.

The horizontal moving unit includes a pair of horizontal moving coils 510 installed on the valve body so as to be moved horizontally, a horizontal driving unit 520 moving the pair of horizontal moving coils 510 horizontally, The front and rear horizontal moving rings 360 and 370 are connected to the protrusions 362 of the front and rear horizontal movement rings 360 and 370, respectively, and are interlocked by the horizontal movement of the coaxial shaft 510, (Not shown).

That is, when the user moves the pair of horizontal moving coaxial axes 510 through the horizontal driving part 520, the front and rear horizontal moving rings are moved to the blind 200 side through the connecting part 530, The front and rear ring seats become completely in close contact with the blind side.

In this process, the O-rings are installed on the blind contact surface and the front and rear sheet contact surfaces to maintain airtightness.

5 is an exploded perspective view of the horizontal movement unit.

5, when the pair of horizontal moving coaxial shafts 510 are moved, the front and rear horizontal moving rings 360 and 360 are moved toward the blind 200 side through the protruding portion 362 confined in the connecting portion 530 .

Here, the pair of horizontal movement coaxial shafts 510 are arranged on both sides of the vertical axis of the vertical movement unit 210, so that interference can be avoided and the valve itself can be manufactured smartly.

As described above, the present invention provides a blind valve type gate valve as a main technical idea, and since the above-mentioned embodiment is only one embodiment with reference to the drawings, the true scope of the present invention is not limited to Should be determined.

100: valve body
110, 120: front and rear openings
130, 140: front and rear seat portions
200: blinds
210:
220:
290:
310, 320: front and rear ring seats
380,390: O-ring
360,370: Horizontal moving ring for front and rear
362:
400: Vertical movement unit
500: Horizontal movement unit
510: horizontal coaxial
520:

Claims

A gate valve installed between a pipe and a pipe to open or shut off the pipe,
A valve body 100 having front and rear openings 110 and 120 formed therein;
Front and rear seats (130, 140) formed inside the valve body (100) at front and rear openings (110, 120);
A blind 200 inserted between the front and rear sheets 130 and 140;
A vertical moving unit for vertically moving the blind 200 to open and shut off the channel;
Front and rear ring seats (310, 320) respectively contacting the outer circumferential surfaces of the front seat (130) and the rear seat (140);
O rings 380 and 390 installed on the contact surfaces of the blind 200 and the front and rear seats 130 and 140 of the front and rear ring seats 310 and 320, respectively;
Front and rear horizontally moving rings (360, 370) threadably coupled to the outer circumferential surfaces of the front and rear seats (130, 140);
And a horizontal movement unit for rotating the front and rear horizontal movement rings 360 and 370 to push the front and rear ring seats 310 and 320 toward the blind 200,
The horizontal movement unit includes:
A horizontal driving unit 520 for horizontally moving the pair of horizontal moving coils 510 and a pair of horizontal moving coils 510 for moving the horizontal moving coins 510 And connected to the protrusions 362 of the front and rear horizontal movement rings 360 and 370 so as to be interlocked by the horizontal movement of the coaxial shaft 510 to rotate the front and rear horizontal movement rings 360 and 370 530). &Lt; / RTI >

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The method according to claim 1,
The vertical movement unit includes:
Wherein the blind valve includes a vertically movable coaxial shaft having one end fixed to the blind and a vertical driving part rotating the vertically movable coaxial shaft.

The method according to claim 1,
The vertical movement unit includes:
A rack gear 208 formed on a side surface of the blind 200 and a guide portion 290 installed on the valve body to guide movement of the blind 200. The rack gear is engaged with the rack gear, And a driving motor (404) connected to the driving gear (402) to move the blinds vertically.