KR20180115509A - Weir type diaphragm valve - Google Patents

Abstract

The present invention relates to a weir type diaphragm valve capable of rotating a handle member when the handle member is spaced apart, and capable of preventing rotation of the handle member when the handle member comes in contact with the handle member to be coupled thereto. According to the present invention, the weir type diaphragm valve comprises: a body (100) having a flow path receiving a fluid from one side to discharge the fluid to the other side; a diaphragm member (200) to open/close the flow path of the body (100); a compressing member (300) operated by external pressure to compress the diaphragm member (200); a bushing member (400) rotated by the external force to elevate the compressing member (300); a bonnet member (500) having an inner space allowing the bushing member (400) to move in a penetrated state and coupled to the body (100); the handle member (600) to rotate the bushing member (400); and a locking member to lock the handle member (600) to the hushing member (400).

Description

Wear type diaphragm valve {WEIR TYPE DIAPHRAGM VALVE}

The present invention relates to a wear type diaphragm valve in which a handle member can be rotated when a handle member is separated from a bonnet member, and rotation of the handle member can be prevented when the handle member is in contact with the bonnet member.

In general, a diaphragm valve opens and closes a diaphragm, which is a thin film provided inside the main body, to allow a fluid to flow or to stop the flow of fluid. Of course, the degree of opening can be adjusted to increase or decrease the flow of the fluid.

Such a diaphragm valve is highly resistant to corrosion and is intended to be used in semiconductor equipment, piping for petroleum industry, facilities of pharmaceutical companies, etc. When the user rotates the handle to operate the diaphragm, the shape of the diaphragm is changed, . That is, the steering wheel is rotated forward to open the channel, and reverse the steering wheel to close the channel.

However, the above-described diaphragm valve is not provided with a safety device capable of restricting the rotation of the handle, and there is a problem that the valve can be opened or closed by carelessness in use.

Prior art relating to the present invention is disclosed in the Korean Intellectual Property Office (KIPO) No. 10-1390676 on Apr. 24, 2014.

However, although the above-described prior art can lock the handle by forcibly coupling the lock pin to the handle, it is inconvenient to separately provide the lock pin.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wear type diaphragm valve in which a handle member can be rotated when a handle member is spaced apart and a handle member can be prevented from rotating when the handle member is in contact with the bonnet member.

The wear type diaphragm valve of the present invention includes a body 100 having a flow path through which a fluid that flows into one side and is discharged to the other side is formed, a diaphragm member 200 that opens and closes a flow path of the body 100, A bushing member 400 that is rotated by an external pressure to move the compression member 300 up and down and a bushing member 400 that passes through the bushing member 400 A handle member 600 for rotating the bushing member 400 and a handle member 600 coupled to the bushing member 400 so as to be rotatable relative to the body 100. [ And a locking member 700 for locking the bonnet member 500. The bonnet member 500 is formed with a male protrusion 520 at an upper portion thereof and the handle member 600 is formed with an arm groove 620 at a lower portion thereof, Shaped groove 620 of the bonnet member 500 is detachably coupled to the male projection 520 of the bonnet member 500 The.

The compression member 300 includes a compressor 310 which is in tight contact with the diaphragm member 200 and a stem 320 which is connected to the compressor 310 and the compressor 310 is formed into a plate shape A guide shaft 311 is formed on both sides of the stem 320. A male thread 321 is formed on the outer circumference of the stem 320 and a guide shaft 322 is protruded on the upper side of the stem 320. The bushing member 400 has a stem 320 A male screw thread 410 is formed to be threadedly coupled with the female screw thread 410 and a through hole 420 penetrating upward from the female screw thread 410 and guided by the guide shaft 322 is formed, The guide rail 510 is formed on the inner circumferential surface of the member 500 so that the guide protrusion 311 of the compressor 310 is guided. When the bushing member 400 is rotated, the compression member 300 is lifted .

The bushing member 400 is formed with an outer binding portion 430 on the outer circumferential surface thereof and the handle member 600 is vertically penetrated through the inner space so as to insert the bushing member 400, And the inner binding portion 610 is formed on the inner peripheral surface so that the binding portion 430 is brought into contact with and bound.

Preferably, the outer binding portion 430 and the inner binding portion 610 are formed as flat surfaces so as to be in close contact with each other and to engage with each other.

Preferably, the bushing member 400 is formed with a bushing thread 440 on the upper peripheral surface thereof and the locking member 700 is composed of a nut screwed to the bushing thread 440 of the bushing member 400 .

In the wear type diaphragm valve according to the present invention, when the handle member is separated from the bonnet member and the female groove formed in the handle member is separated from the male protrusion formed on the bonnet member, the handle member can be rotated, There is a convenience that the rotation of the handle member can be prevented when the female groove of the handle member is engaged with the male projection of the bonnet member,

Further, when the handle member is rotated by coupling the outer binding portion formed on the outer side of the bushing member to the inner binding portion formed on the inner side of the handle member of the present invention, the bushing member can be rotated together.

Further, the bushing member can be coupled to the handle member by coupling the locking member to the bushing member passing through the handle member of the present invention.

1 is a perspective view showing the appearance of the present invention.
2 is an exploded perspective view showing the decomposed state of the present invention.
3 is an exploded perspective view showing a main part of the present invention.
4 is an exploded cross-sectional view showing another essential part of the present invention.
Figures 5 (a), (b) and (c) illustrate the operation of the present invention.
6 is a perspective view showing an operating state of the present invention;

Hereinafter, the wear type diaphragm valve of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, the present invention includes a body 100 in which a flow path through which a fluid that flows into one side and flows to the other side is perfused, a diaphragm member 200 that opens and closes a flow path of the body 100, A bushing member 400 which is rotated by an external pressure to raise and lower the compression member 300 and a bushing member 400 which is rotated by external pressure to raise and lower the compression member 300, A handle member 600 for rotating the bushing member 400 and a handle member 600 for connecting the handle member 600 to the bushing member 400. The main body member 500 is coupled to the body 100 with an inner space, And a locking member (700) for locking the locking member (400).

The body 100 is formed on both sides with a hole for fluid inflow and discharge, communicating with the flow path. Then, the flow path is opened upward from the body 100.

The diaphragm member 200 is deformed by an external pressure to open and close the flow path of the body 100 and is formed in a state of being overlapped with the Teflon diaphragm 210 and the Teflon diaphragm 210 covering the flow path of the body 100 And a rubber diaphragm 220 provided thereon. Therefore, when the rubber diaphragm 220 is pressed, the Teflon diaphragm 210 is pushed to open and close the flow path of the body 100.

The compression member 300 includes a compressor 310 which is in tight contact with the diaphragm member 200 and a stem 320 which is connected to the compressor 310.

The compress 310 is formed in a plate shape, and guide projections 311 are formed on both sides.

The stem 320 is connected to the compressor 310 in a standing state by a pin or a bolt. A male screw thread 321 is formed on the outer circumference of the stem 320, and a guide shaft 322 is projected on the stem.

The bushing member 400 is formed with a female screw thread 410 on its inner circumferential surface and a through hole 420 penetrating upwardly from the male thread 410. The bushing member 400 has an outer binding portion 430 formed on the outer circumferential surface thereof, And a tubular body on which bushing male threads 440 are formed on the outer circumferential surface.

The bushing member 400 is formed with an outward flange at its lower end or with a protrusion laterally projecting from its lower end.

Female threads (410) are threaded with male threads (321) of the stem (320). Accordingly, when the bushing member 400 is rotated with the stem 320 embedded in the bushing member 400, the stem 320 is moved up and down.

Since the guide shaft 322 of the stem 320 is inserted into the through-hole 420, the lifting and lowering of the stem 320 can be guided.

The outer binding portion 430 may be a flat surface.

A ring for preventing fluid leakage may be provided on the outer peripheral surface of the bushing member 400.

The bonnet member 500 is vertically opened to allow the bushing member 400 to be received therein. The guide rail 510 is vertically formed on the inner circumferential surface of the bonnet member 500, and the male protrusion 520 is formed on the outer circumferential surface of the bonnet member 500. The guide protrusion 311 of the comp 310 can be guided along the guide rail 510.

The bonnet member 500 is formed with a bushing member 400 which is accommodated in the inner space and which protrudes upward and which is engaged with the outward flange of the bushing member 400. Accordingly, the bushing member 400 can be retained without being discharged to the upper portion of the bonnet member 500.

The guide protrusion 311 of the comp 310 can be guided along the guide rail 510. Thus, the comp 310 can be raised and lowered without being rotated in the inner space of the bonnet member 500.

The bonnet member 500 is coupled to the body 100 together with the diaphragm member 200 by bolting. That is, they can be combined and integrated by stud bolts and nuts.

The inner member 610 is formed on the inner circumferential surface of the handle member 600 such that the inner space is vertically penetrated to insert the bushing member 400 and the outer binding portion 430 of the bushing member 400 is brought into contact with the inner binding portion 430 And an arm-shaped groove 620 is formed on the inner circumferential surface of the lower portion so as to be detachably coupled to the male projection 520 of the bonnet member 500. Here, the inner binding portion 610 is formed of a flat surface.

Here, the female-shaped groove 620 and the male-like protrusions 520 may be formed in a plurality of radial dispersions. Accordingly, when the handle member 600 is slightly rotated and lowered, the male protrusion 520 can be engaged with the female-shaped groove 620. Therefore, since the handle member 600 is finely rotated, the degree of opening of the body 100 with respect to the passage can be finely adjusted, and the adjusted state can be maintained firmly.

The handle member 600 may be formed so that a plurality of protrusions and wrinkles are dispersed on the outer circumferential surface to increase grip feeling when the user grips the handle member 600.

Therefore, when the handle member 600 is rotated by the user, the bushing member 400 is also rotated together with the outer binding portion 430 by contacting the inner binding portion 610.

The locking member 700 may be comprised of a nut threaded into a bushing male thread 440 of the bushing member 400.

Hereinafter, the operation and effects of the present invention will be described.

First, the arm-shaped groove 620 of the handle member 600 is engaged with the male projection 520 of the bonnet member 500. That is, since the handle member 600 is lowered by its own weight, the male protrusion 520 is inserted into the female groove 620 and is engaged.

When the user grasps the handle member 600 and lifts the handle member 600, the bushing member 400 connected to the handle member 600 is raised in the bonnet member 500. That is, since the handle member 600 is spaced apart from the Bonnet member 500, the male protrusion 520 is separated from the female groove 620.

At this time, since the bushing member 400 is locked to the handle member 600 by the locking member 700, the locking member 700 is also elevated together with the handle member 600.

In this state, when the user rotates the handle member 600 in the normal direction, the bushing member 400 also rotates together, so that the compressor 310, which is connected to the stem 320 of the compression member 300 screwed to the bushing member 400, The guide protrusion 311 of the main body member 500 is lowered along the guide rail 510 of the bonnet member 500.

As a result, the compressor 310 is lowered from the bushing member 400 to press the diaphragm member 200, thereby closing the flow path of the body 100. Of course, when the degree to which the compressor 310 presses the diaphragm member 200 is adjusted, the degree of closing the diaphragm member 200 is adjusted so that the amount of the fluid flowing along the flow path can be adjusted .

In contrast, when the handle member 600 is reversely rotated, the bushing member 400 is also rotated backward to raise the compressor 310 together with the stem 320 of the compression member 300, so that the diaphragm member 200 is not pressed The flow path of the body 100 is opened.

Finally, after the user reverses the handle member 600 to open the flow path of the body 100 or to rotate the handle member 600 forward to close the flow path of the body 100, the handle member 600 The handle member 600 is lowered due to its own weight. At this time, since the male protrusion 520 of the bonnet member 500 is inserted and coupled to the female groove 620 of the handle member 600, the open or closed state of the channel can be firmly maintained. Therefore, the fixed state can be firmly maintained until the handle member 600 is separated from the bonnet member 500 by the force of the user.

As described above, according to the present invention, when the handle member is separated, the handle member can be rotated and the rotation of the handle member can be prevented when the handle member is in contact with the bonnet member. Therefore, It is an invention.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

100: Body 200: Diaphragm member
210: Teflon diaphragm 220: Rubber diaphragm
300: Compression member 310: Comp
311: guide projection 320: stem
321: male thread 322: guide shaft
400: bushing member 410: female thread
420: penetrating passage 430: outer binding portion
440: bushing thread thread 500: bonnet member
510: guide rail 520: male projection
600: handle member 610: inner binding portion
620: female groove 700: locking member

Claims (5)

A body 100 in which a flow path through which fluid discharged into the one side is discharged is formed,
A diaphragm member 200 for opening and closing the flow path of the body 100,
A compression member 300 operated by external pressure to press the diaphragm member 200,
A bushing member 400 rotated by an external pressure to move the compression member 300 up and down,
A bonnet member 500 coupled to the body 100 with an inner space formed in a state where the bushing member 400 is penetrated,
A handle member 600 for rotating the bushing member 400,
And a locking member (700) for locking the handle member (600) to the bushing member (400)
The bonnet member 500 is formed with a male protrusion 520 at an upper portion thereof and the handle member 600 is formed with an arm groove 620 at a lower portion thereof so that the arm groove 620 of the handle member 600 is inserted into the bonnet member 500 ) Of the female type diaphragm valve (520).
The method according to claim 1,
The compression member (300)
A compressor 310 which is in close contact with the diaphragm member 200 and presses it,
And a stem (320) connected to the compressor (310)
The comp 310 is formed in a plate shape, and guide projections 311 are formed on both sides thereof,
The stem 320 has a male thread 321 formed on the outer circumferential surface thereof, a guide shaft 322 protruded therefrom,
The bushing member 400 has an inner circumferential surface formed with a female thread 410 to which a male thread 321 of the stem 320 is screwed and a guide shaft 322 is inserted through the female thread 410 and inserted into the guide thread 322, A through-hole 420 is formed,
The bonnet member 500 is formed with a guide rail 510 on the inner circumferential surface thereof so that the guide protrusion 311 of the comp 310 is guided,
Wherein when the bushing member (400) is rotated, the compression member (300) is lifted and lowered from the bonnet member (500).
The method according to claim 1,
The bushing member 400 has an outer binding portion 430 formed on its outer peripheral surface,
The handle member 600 includes an inner binding portion 610 formed on an inner circumferential surface of the handle member 600 so that the inner space penetrates vertically to insert the bushing member 400 and the outer binding portion 430 of the bushing member 400 is brought into contact A wear-type diaphragm valve.
The method of claim 3,
Wherein the outer binding portion (430) and the inner binding portion (610) are formed as flat surfaces so as to be in close contact with each other and to be bound together.
The method according to claim 1,
The bushing member 400 has a bushing thread 440 formed on the outer circumferential surface of the upper portion thereof,
Characterized in that the locking member (700) is comprised of a nut threaded into a bushing male thread (440) of the bushing member (400).

Images