KR20220162919A - Opening and closeing valve of rotary type - Google Patents

Abstract

The present invention relates to a rotary shut-off valve in which a plurality of valve units can be sequentially opened and closed through rotation of a rotating body connected to a motor. More particularly, the present invention relates to a rotary shut-off valve in which a plurality of valve units can be easily opened and closed through a rotating body rotated by a motor without the need to individually control each valve unit, the excessive power consumption, noise generation, valve malfunction, and valve damage can be prevented, and the production costs can be reduced.

Description

Rotary on-off valve {OPENING AND CLOSEING VALVE OF ROTARY TYPE}

The present invention relates to a rotary on-off valve in which a plurality of valve units can be sequentially opened and closed through rotation of a rotating body connected to a motor, and more particularly, to a circuit rotated by a motor without the need to individually control each valve unit. The present invention relates to a rotary on-off valve capable of easily opening and closing a valve unit through the whole, preventing excessive power consumption, noise generation, valve malfunction, and valve damage, and reducing production costs.

In general, on-off valves used to move fluid are divided into mechanical valves and electromagnetic valves.

Currently commercialized mechanical valves include ball valves, gate valves, etc., and are used as a technology for regulating or controlling the flow of fluid with a ball shape or gate in order to pass fluid or open and shield. In the case of manual valves, the price is It is inexpensive and the structure is used in a simple way.

However, these conventional mechanical valves can be difficult to operate due to direct force applied when the flow rate is fast or the pressure is high, and they are more vulnerable to problems such as water hammer or freezing compared to other valves. exists.

In addition, since mechanical operation is mostly operated manually, precautions are required when using high temperature and high pressure, and it is difficult to control and open / shield the flow rate. There is a problem that it takes a lot of money and time.

On the other hand, in the case of an electronic valve, the inside of the solenoid is supported by an elastic member such as a spring, and a method of opening or shielding the passage of the valve can be selectively performed. When current flows to the solenoid coil, the shielded valve is opened and the fluid It consists of a structure that allows the flow of

However, in the case of existing electronic valves, since they are used electronically, a power source must exist, and in an environment without a power source, it is difficult to use and there are concerns that shielding may not be properly performed due to problems such as device failure.

In addition, in the case of a solenoid valve, resistance is generated when the fluid flows because the orifice is small, and noise and resistance are generated when the fluid passes through the orifice, so that the velocity of the fluid in the inflow passage and the discharge passage is different, and the resistance of the fluid causes the spring to be shielded. When a pressure exceeding the force is generated, a problem occurs in which the shielding of the fluid becomes impossible.

In particular, since noise is generated during this process because it is shielded by the force of a spring, there is the inconvenience of having to separately install a separate silencer, and the price is very high compared to existing valves because the structure is more complicated than mechanical valves. exist.

Republic of Korea Utility Model Registration No. 20-0480641 "Opening/closing valve"

The present invention is to solve the above problems, the valve unit can be easily opened and shielded through a rotating body rotated by a motor without the need to individually control each valve unit, excessive power consumption, noise generation and It is an object of the present invention to provide a rotary on-off valve capable of preventing malfunction of the valve and damage to the valve and reducing production costs.

In addition, since the rotating body rotates in a single direction, each valve is opened and closed in a cam method, so that the operating speed of the valve unit can be adjusted by adjusting the rotational speed of the rotating body, and a large force is applied to opening and closing the orifice in the valve unit. It is an object of the present invention to provide a rotary on-off valve with excellent usability without occurrence of this.

In addition, it is an object of the present invention to provide a rotary on-off valve that can be inserted into the upper and lower sides when the piston is provided in the valve frame, so that the assembly and maintenance of the valve unit is easy.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In the on-off valve capable of inflow and discharge of fluid according to the present invention to solve the above problems,

A valve unit disposed in a circular shape and including a plurality of valve units; and a rotating body provided at the center of the valve unit to open and close the valve unit while being rotated by a motor connected thereto, and at one side of the valve unit, an inflow hole through which fluid is supplied from the outside and moved to the inside of the valve unit. ; And a discharge hole through which the fluid introduced into the valve unit is discharged to the outside; a piston is formed, a part of the upper end of the valve unit is retracted, and a piston protrudes downward of the valve unit and extends toward the center of the valve unit, When the rotating body rotates, a side end contacts the piston to drive the piston, and the piston closes the inlet hole or the outlet hole while moving along the inside of the valve unit, the inlet hole and the outlet hole The open and closed states are opposite to each other.

In addition, the valve unit includes a connector that allows a plurality of valve units to be arranged in a circular shape and spaced apart from each other at regular intervals, and both ends of the valve unit are connected and fixed to the connector, respectively.

In addition, in the valve unit, the piston protruding downward is directed toward the center of the valve unit, but tilted at a predetermined angle in a direction opposite to the direction of rotation of the rotating body, and when the rotating body rotates, both ends of the pair of the pistons The pair of pistons, which come into contact with and drive each other, and come into contact with the rotating body are provided on opposite sides of each other.

In addition, the valve unit, the inlet hole and the inside is in communication and the upper end of the built-in piston is provided in the upper hollow; a lower hollow in which the lower end of the built-in piston is in communication with the gas discharge hole; and a central sill formed vertically protruding from the center of an inner surface of the valve unit, wherein the upper hollow is provided on the upper side around the central sill, and the lower hollow is provided on the lower side around the central sill. A central hole through which the piston can pass is formed in the center of the central jaw, and the upper end of the piston is inserted into the center of the lower surface of the valve unit, the upper end penetrates the central jaw and is provided in the upper hollow, and the lower end is When the valve unit protrudes outward.

At this time, the piston is embedded in the upper hollow, the outer diameter is expanded, the upper protrusion having a cylindrical shape; and a lower protrusion that is embedded in the lower hollow and has an outer diameter that is expanded to have a cylindrical shape. moves up and down inside the upper hollow and can selectively close the inlet hole and the upper side of the center hole, and the lower protrusion moves up and down inside the lower hollow and covers the discharge hole and the lower side of the center hole selectively closed.

At this time, a main O-ring is provided on the outer circumferential surface of the upper protrusion and the outer circumferential surface of the lower protrusion, respectively, and the outer circumferential surface of the piston in contact with the lower surface of the upper protrusion and the outer circumferential surface of the piston in contact with the lower surface of the lower protrusion have a finishing O-ring; Each is provided, and the main O-ring closes the gap between the outer circumferential surface of the installed configuration and the inner surface of the valve unit.

In addition, a central spring is provided on the outer circumferential surface of the piston, and the upper surface of the central spring is in close contact with the lower surface of the central jaw, the lower surface is in close contact with the upper surface of the lower protrusion, and the piston moves toward the upper protrusion through the rotating body. When moving, the central spring is compressed, and when the rotating body and the piston are separated, the piston returns to its original position through the elastic restoring force of the compressed central spring.

In addition, the valve unit includes an upper cap having upper and lower surfaces open and provided on the open upper surface of the valve unit to form the upper hollow; and a lower cap provided on an open lower surface of the valve unit to form the lower hollow, and a piston through-hole through which the piston end can pass is formed at the center of the lower surface of the lower cap.

At this time, a finishing O-ring is additionally provided on the outer circumferential surface of the piston, and the finishing O-ring closes the gap between the outer circumferential surface of the piston and the inner circumferential surface of the piston through hole when the piston protrudes out of the lower cap.

In addition, the valve unit, one end is inserted into the inlet hole coupled to the inlet, the other end is connected to the hose for supplying the fluid; And one end intercalated and coupled to the discharge hole, the other end is a discharge port connected to a hose through which the fluid in the valve unit is discharged; the inlet and one end of the outlet are formed with a screw thread, and the inlet hole and the A screw thread is formed on an inner surface of the discharge hole, and the inlet and the outlet are screwed to the inlet and outlet holes.

In addition, the piston is composed of an upper piston and a lower piston, the upper piston, the upper end protrusion of which the outer diameter is extended at the top; and a coupling protrusion having a screw thread formed along an outer circumferential surface and extending toward the lower piston at a center thereof, and a lower protrusion having an outer diameter at an upper end of the lower piston is formed, and a part of the lower end penetrates the lower surface of the valve unit to form an outer surface. It protrudes into contact with the rotating body, and at the center of the upper surface of the lower protrusion is recessed in a shape corresponding to the coupling protrusion, and a coupling groove in which a screw thread is formed on the inside of the recess is formed, and the upper piston and the lower piston are coupled. When the coupling protrusion is inserted into the coupling groove is screwed.

As described above, the present invention can easily open and shield the valve unit through a rotating body rotated by a motor without the need to individually control each valve unit, and avoid excessive power consumption, noise generation, malfunction of the valve, and valve damage. It can be prevented and has the effect of reducing production costs.

In addition, since the rotating body rotates in a single direction, each valve is opened and closed in a cam method, so that the operating speed of the valve unit can be adjusted by adjusting the rotational speed of the rotating body, and a large force is applied to opening and closing the orifice in the valve unit. This does not occur, so it has the effect of excellent usability.

In addition, when the piston is provided in the valve frame, it can be inserted into the upper and lower sides, respectively, so that the assembly and maintenance of the valve unit is easy.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 shows a front view of a rotary on-off valve according to the present invention.
2 is a perspective view showing a rotary on-off valve according to the present invention.
3 is a cross-sectional view of a valve unit according to the present invention.
4 and 5 show the movement of the piston in the valve unit according to the present invention.
Figure 6 shows the valve unit and the inlet and outlet according to the present invention.
7 is an exploded perspective view showing a cut surface of the valve unit according to the present invention.
8 and 9 show the movement of the piston according to the movement of the rotating body of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the gist of the present invention.

1 is a front view of a rotary on-off valve according to the present invention, Figure 2 is a perspective view of the rotary on-off valve according to the present invention, Figure 3 is a cut-away view of the valve unit according to the present invention, Figure 4 and 5 shows the movement of the piston in the valve unit according to the present invention, Figure 6 shows the valve unit and the inlet and outlet according to the present invention, Figure 7 is an exploded perspective view showing a cut surface of the valve unit according to the present invention 8 and 9 show the movement of the piston according to the movement of the rotating body of the present invention.

The present invention relates to a rotary on-off valve in which a plurality of valve units can be sequentially opened and closed through rotation of a rotating body connected to a motor. It is composed of a valve unit 10 and a rotating body 20 connected to a motor M to drive the valve unit 100.

In the valve unit 10, a plurality of valve units 100 are arranged in a circular shape around the rotating body 20, and the piston 120 provided in the valve unit 100 moves according to the rotation of the rotating body 20. It is driven in the up and down direction to perform the role of inflow and discharge of fluid.

The valve unit 10 is composed of a valve unit 100 in which a piston 120 is inserted to allow inflow and discharge of fluid, and a connector 11 that arranges the valve units 100 in a circular shape at regular intervals. do.

The connector 11 serves to fix the plurality of valve units 100 in a circularly arranged state while being spaced apart at regular intervals along the outer diameter. These connectors 11 are connected to both ends of the valve frame 110 of the valve unit 100, respectively, so that the piston 120 included in the valve unit 100 protrudes toward the center of the valve unit 10, thereby rotating it. The piston 120 is pushed by the whole 20 and can be arranged so that it can be moved in the vertical direction.

That is, a plurality of valve units 100 are provided at regular intervals along the outer diameter of the circular valve unit 10, and the connector 11 connects these valve units 100 to each other and fixes them in an arranged state. is included

These connectors 11 are coupled to both ends of the valve frame 110 of the valve unit 100, respectively, and serve to arrange a plurality of valve units 100 in a circular shape. That is, it is provided in spaced apart spaces between the plurality of valve units 100, and at this time, the valve frame 110 and the connector 11 may be integrally formed.

The valve unit 100 is opened and closed through the rotating body 20 provided inside the circular valve unit 10 so that fluid is introduced or discharged to adjust the flow rate.

In the valve unit 100, the valve frame 110 connected to the connector 11 and a portion of the upper end of the valve frame 110 are interpolated to move up and down through the rotating body 20 to form the valve unit 100. It consists of a piston 120 that opens and closes.

The valve frame 110 is made of a square shape with open upper and lower surfaces, but an inner space formed in a cylindrical shape is formed on the inner side, and the piston 120 is built into this inner space.

At the center of the inner surface of the inner space of the valve frame 110, a central jaw 113 protruding perpendicularly to the inner surface is formed.

The central part of the piston 120, that is, the spaced space between the upper protrusion 121a and the lower protrusion 122a is introduced into the center of the central jaw 113, and as the piston 120 moves in the vertical direction, the central jaw ( 113) is seated on the upper surface of the upper protrusion (121a) to close the hole in the center of the central jaw (113) and close the inflow hole (101) provided on the upper side, or to the lower surface of the lower projection (122a) of the central jaw (113). The upper surface may be in close contact to close the hole in the center of the central jaw 113 and at the same time close the discharge hole 102 provided on the lower side.

The inner space of the valve frame 110 is divided into an upper hollow 111 located on the upper side around the central jaw 113 and a lower hollow 112 located on the lower side around the central jaw 113.

The upper hollow 111 is in communication with the inlet hole 101 provided at the top of one side of the valve frame 110, and the lower hollow 112 is the bottom of one side of the valve frame 110, that is, the inlet hole 101. A discharge hole 102 provided on the lower side and communicating with the lower hollow 112 and the inside is formed.

Therefore, when the fluid is introduced into the upper hollow 111 of the inside of the valve unit 100 through the inlet 130 connected to the inlet hole 101 and the piston 120 descends, the upper hole formed in the center of the central jaw 113 The fluid in the hollow 111 moves to the lower hollow 112 . In addition, when the piston 120 rises, the fluid introduced into the lower hollow 112 is moved to the discharge port 140 connected to the discharge hole 102 and discharged to the outside.

Threads are formed on the inside of the inlet hole 101 and the outlet hole 102, and these threads correspond to the threads formed at one end of the inlet 130 and the outlet 140, so that the inlet 130 and the outlet 140 The inlet 130 and the outlet 140 may be coupled to the valve unit 100 by screwing one end into the inlet hole 101 and the outlet hole 102 to be coupled, respectively.

The other ends of the inlet 130 and the outlet 140 are connected to hoses through which the fluid can move.

The piston 120 is inserted into the valve frame 110 and moves inside the upper hollow 111 and the lower hollow 112 in an up and down direction to open and close the inlet 130 and the outlet 140 to flow into the valve unit 100. fluids can be introduced and discharged.

The piston 120 is made of a cylindrical shape, and an upper protrusion 121a having a large outer diameter is formed where it is provided in the upper hollow 111 of the piston 120, and the lower hollow 112 of the piston 120 ) Where it is provided, a lower protrusion 122a having a large outer diameter is formed.

The upper protrusion 121a and the lower protrusion 122a are formed larger than the inner diameter of the hole formed in the center of the central jaw 113, so that the upper protrusion 121a or the lower protrusion 122a is in close contact with the central jaw 113, and the inlet 130 ) Or by closing the outlet 140, the outlet 140 or inlet 130 on the opposite side may be opened.

Among these pistons 120, the lower end of the piston 120, which penetrates and protrudes to the lower side of the valve unit 100, comes into contact with the rotating body 20 so that the piston 120 can be moved through the rotation of the rotating body 20. , then the piston 120 needs to be returned to its original position.

For example, the ends of the piston 120 of the valve unit 100 disposed symmetrically with each other are in close contact with both ends of the rotating body 20 and move while pushing the piston 120 toward the upper hollow 111 side. ) When the rotating body 20 is absent through rotation, the piston 120 should protrude toward the rotating body 20 again. At this time, in the case of the piston 120 coupled with the valve unit 100 provided on the upper side of the valve unit 10, it can descend automatically by gravity, but is located on the lower side of the valve unit 10 as shown in FIG. In the case of the valve unit 100, in order for the distal end of the piston 120 to protrude toward the rotating body 20, a separate force pushing the piston 120 upward is required.

Therefore, in the present invention, the central spring 123 may be provided on the outer circumferential surface so that the end of the piston 120 automatically protrudes toward the rotating body 20 when there is no pushing force of the rotating body 20 .

The central spring 123 is located in the lower hollow 112 and is provided on the outer circumferential surface of the piston 120. The central spring 123 is provided with a piston 120 on the inside, and the diameter of the central spring 123 is formed larger than the inner diameter of the hole formed in the center of the central jaw 113, so that the central spring 123 is compressed and expanded. To prevent from moving through the central jaw 113 to the upper hollow (111).

As shown in FIG. 3, the central spring 123 has an upper end provided in close contact with the lower surface of the central jaw 113, and a lower end provided on the upper surface of the lower protrusion 122a.

Therefore, as shown in FIG. 4, when the piston 120 moves toward the upper hollow 111 side through the rotating body 20, the central spring 123 is compressed, and then the force that pushes the piston 120 toward the upper hollow 111 side. disappears, the compressed central spring 123 expands by the elastic restoring force, and the central spring 123 pushes the lower protrusion 122a of the piston 120 downward (outward), through which the piston 120 Returning to the original position, it has an advantage that the piston 120 can be easily moved up and down continuously.

Through the piston 120, the rotating body 20 can continuously open and close the valve unit 100 while continuously rotating, and through this, the flow rate can be continuously adjusted.

In particular, there is an effect that it is not necessary to separately provide power to the valve like the conventional solenoid valve, it can be mechanically operated and driven without power, and malfunction of the internal components can be prevented.

In addition, the upper protrusion 121a and the lower protrusion 122a are provided with the main O-ring 124 on their outer circumferential surfaces, and are connected to the lower surfaces of the upper protrusion 121a and the lower protrusion 122a and the piston 120 whose inner diameter is reduced. A finishing O-ring 125 is provided along the outer circumferential surface.

First, the main O-ring 124 provided on the outer circumferential surface of the top protrusion 121a serves to close the gap between the outer diameter of the top protrusion 121a and the inner surface of the upper hollow 111.

At this time, on the outer circumferential surface of the upper protrusion 121a on the side where the main O-ring 124 is provided, a depression groove is formed along the outer circumferential surface through which the main O-ring 124 can be inserted so that the main O-ring 124 in close contact can be partially inserted. , The main O-ring 124 is introduced into the recessed groove to be fixed to the outer circumferential surface of the upper protrusion 121a.

As described above, the main O-ring 124 is provided on the outer circumferential surface of the upper protrusion 121a in a partially inserted state, so that when the piston 120 moves, the main O-ring 124 in close contact with the inner surface of the upper hollow 111 is caused by frictional force. It is possible to prevent the main O-ring 124 from escaping from the position of the initially installed top protrusion 121a, such as being pushed up.

At this time, the main O-ring 124 provided on the outer circumferential surface of the upper protrusion 121a is provided on the upper side of the inlet hole 101 even if the piston 120 protrudes out of the valve unit 100 as much as possible (Fig. 5 Reference) Allows fluid to flow into the outer side of the upper protrusion 121a centered on the main O-ring 124, and when the piston 120 descends, the fluid flowing into the upper hollow 111 lowers the upper protrusion 121a and the upper protrusion. It can move through the main O-ring 124 provided on the outer circumferential surface of (121a).

In addition, the main O-ring 124 provided on the outer circumferential surface of the lower protrusion 122a also serves to close the gap between the outer circumferential surface of the lower protrusion 122a and the inner surface of the lower hollow 112, and the lower protrusion 122a also A recessed groove into which the main O-ring 124 can be partially inserted is formed along the outer circumferential surface, and the main O-ring 124 is coupled to the inside of the recessed groove of the lower protrusion 122a to prevent separation of the main O-ring 124 and to provide bonding strength. improvement can be obtained.

Therefore, the main O-ring 124 provided on the outer circumferential surface of the lower protruding portion 122a and closing the gap between the outer circumferential surface of the lower protruding portion 122a and the inner surface of the lower hollow 112 prevents fluid flowing into the lower hollow 112, as described later. It is not moved to the piston through-hole 161 of the lower cap 160, but moves to the discharge port 140 or the upper hollow 111 according to the movement of the piston 120.

In addition, a finishing O-ring 125 is provided on the outer circumferential surface of the piston 120 provided in the center of the lower surface of the upper protrusion 121a whose inner diameter is rapidly reduced. 121a) is in close contact with the upper surface of the central jaw 113, and the outer circumferential surface of the piston 120 is provided with the finishing O-ring 125 in the gap between the central holes of the central jaw 113 through the upper protrusion 121a and the finishing O-ring 125 By completely closing the hole formed in the center of the central jaw 113, it is possible to prevent the fluid provided in the lower hollow 112 from moving to the upper hollow 111.

In addition, a closing O-ring 125 is provided at a connecting portion between the pistons 120 protruding outward from the lower protrusion 122a. In this finishing O-ring 125, when the piston 120 descends, the bottom protrusion 122a is in close contact with the inner surface of the lower cap 160 described later, and the lower protrusion 122a forms a piston through hole ( 161) is closed. At this time, the closing O-ring 125 completely closes the gap between the outer circumferential surface of the piston 120 penetrating the piston through hole 161 and the inner surface of the piston through hole 161, thereby reducing the lower protrusion 122a. The fluid passing through the main O-ring 124 provided on the outer circumferential surface and moving toward the lower cap 160 may be prevented from leaking toward the piston through-hole 161.

On the other hand, the valve frame 110 of the valve unit 100 having such a configuration has an open upper and lower surface, and in the case of a conventional valve that is not opened, it is difficult to perform maintenance work or the configuration built into the valve. In order to do this, there is a hassle that the valve itself must be replaced or all valve components must be dismantled to repair the inside of the valve.

In particular, there is a concern that foreign substances or impurities may remain on the inner surface of the valve while the fluid moves inside the valve, and in this case, there is a problem that the performance of the valve is deteriorated.

Therefore, the upper and lower surfaces of the valve frame 110 are opened to facilitate assembly and subsequent repair work, and the upper and lower caps 150 and 160 are coupled to the valve frame 110 on the open upper and lower surfaces, respectively. and is provided

The upper cap 150 is provided on the upper surface of the valve frame 110 to close the upper surface of the open valve frame 110, and an upper hollow 111 is provided on the upper inside of the upper cap 150 and the valve frame 110. Let it be.

At this time, the uppermost outer circumferential surface of the valve frame 110 is recessed inward, and the upper cap 150 has a cylindrical shape with a lower surface open and a groove formed on the inner side, and the uppermost end of the valve frame 110 enters the open lower side. and can be fitted.

The lower cap 160 is provided on the lower surface of the valve frame 110 to close the lower surface of the open valve frame 110, and a lower hollow 112 is provided on the lower inside of the lower cap 160 and the valve frame 110. Let it be.

At this time, the outer circumferential surface of the lowermost end of the valve frame 110 is depressed inward, and the lower cap 160 has a cylindrical shape with an open upper surface and a groove formed on the inside, and the lowermost end of the valve frame 110 enters the open upper side. and can be fitted.

In addition, a piston through-hole 161 is formed at the center of the lower cap 160 to pass through the lower cap 160 .

The lower end of the piston 120 passes through the inside of the piston through-hole 161 and protrudes out of the valve frame 110 and the lower cap 160, and the lower end (end) of the protruding piston 120 is the rotating body 20 ) and is positioned within the radius of rotation of the rotating body 20.

Therefore, the upper and lower surfaces of the valve frame 110 are closed through the upper cap 150 and the lower cap 160, and through this, the upper hollow 111 and the lower hollow 112 are formed inside the valve frame 110. It can be.

In addition, if necessary, the upper cap 150 or the lower cap 160 can be separated from the valve frame 110 to replace the internal components provided in the upper hollow 111 or the lower hollow 112 or perform maintenance work. have the effect of

On the other hand, the piston 120 is provided with an upper protrusion 121a embedded in the upper hollow 111 and a lower protruding portion 122a embedded in the lower hollow 112, passing through a central hole formed in the center of the central jaw 113. There is a problem that it is difficult to separate the piston 120 from the valve frame 110 because it is difficult to do so.

Likewise, there is a problem that it is difficult to couple the piston 120 to the valve frame 110 in a built-in state.

Therefore, in order to solve this problem, the piston 120 may be divided into an upper piston 121 and a lower piston 122, coupled to each other in the vertical direction, and integrally provided in the valve frame 110.

First, the upper piston 121 has an upper protrusion 121a formed at the upper end, and the lower end of the upper protrusion 121a corresponds to the central hole so as to pass through the central hole formed in the center of the central jaw 113. have an outward appearance

In such an upper piston 121, a main O-ring 124 is provided on the outer circumferential surface of the upper protrusion 121a, and a finishing O-ring 125 is provided on the outer circumferential surface of the upper piston 121 connected to the lower surface of the upper protrusion 121a.

In addition, at the end of the upper piston 121, that is, at the lower end of the upper piston 121 provided toward the lower hollow 112 side through the central jaw 113, a coupling protrusion 121b having a screw thread formed along the outer circumferential surface is formed. .

The coupling protrusion 121b is inserted into the coupling groove 122b of the lower piston 122, which will be described later, and is screwed together. A screw thread is formed on the outer circumferential surface of the coupling protrusion 121b corresponding to a portion drawn into the coupling groove 122b so that it can be screwed by engaging with the thread formed in the coupling groove 122b.

The lower piston 122 has a lower protrusion 122a formed at the upper end, and at the lower end of the lower protrusion 122a, the piston through-hole 161 to pass through the piston through-hole 161 of the lower cap 160 has an outer diameter corresponding to

In such a lower piston 122, a main O-ring 124 is provided on the outer circumferential surface of the lower protrusion 122a, and a finishing O-ring is provided on the outer circumferential surface of the lower piston 122 connected to the lower surface of the lower protrusion 122a.

An upper surface of the lower piston 122, that is, an upper surface of the lower protrusion 122a, has a coupling groove 122b into which the coupling protrusion 121b can be inserted.

The coupling groove 122b is recessed in a shape corresponding to the coupling protrusion 121b, and a thread corresponding to the screw thread formed on the outer circumferential surface of the coupling protrusion 121b is formed on the inner surface so that the upper piston 121 is lower piston 122. ) and the coupling protrusion 121b is screwed into the coupling groove 122b when coupled, so that the upper piston 121 and the lower piston 122 are formed integrally and can be moved along the rotating body 20.

Therefore, when a producer assembles the valve unit 100 or a manager performs maintenance work on the valve unit 100, the upper cap 150 and the lower cap 160 coupled to the valve frame 110 are separated, and the valve An upper piston 121 is provided as an upper space in the frame 110, but a coupling protrusion 121b penetrates the central jaw 113, and a lower piston 122 is provided as a lower space in the valve frame 110. However, the coupling protrusion 121b penetrating the central jaw 113 is screwed into the coupling groove 122b, and then the valve frame ends of the lower piston 122 pass through the piston through-hole 161 of the lower cap 160. Since the lower cap 160 and the upper cap 150 are respectively coupled to 110, the valve unit 100 can be easily assembled and separated.

In addition, depending on the configuration requiring replacement, the upper cap 150 or the lower cap 160 is separated from the valve frame 110 to open the upper hollow 111 or the lower hollow 112 to be built into the valve unit 100. Parts can also be replaced.

In the above-described valve unit 10, a plurality of valve units 100 are disposed spaced apart at regular intervals in a circular shape through a connector 11, and the valve unit 100 is disposed on opposite sides of each other, consisting of a plurality of valve units ( The piston 120 of 100 may be moved through the rotating body 20 .

Each of the pistons 120 included in the valve unit 100 is directed toward the center of the circular valve unit 10, but is positioned within the radius of rotation of the rotating body 20 as shown in FIG. 1, not completely toward the center. And, the rotating shaft 21 of the rotating body 20 is tilted at a certain angle in a direction opposite to the rotating direction of the rotating body 20.

Therefore, as shown in FIG. 8, the piston 120 of the valve unit 100 is tilted in the opposite direction to the direction of rotation of the rotating body 20 and protrudes into the valve unit 10, so that both ends of the rotating body 20 are respectively It comes into contact with the piston 120 of the valve unit 100 and moves the piston 120 toward the upper cap 150 to open and close the valve unit 100, thereby facilitating the inflow and discharge of fluid.

The rotating body 20 is made of a column having an elliptical cross-section in which the long axis is longer than the short axis, and the center of the rotating body 20 is provided with a rotating shaft 21 connected to the motor M.

The rotating shaft 21 passes through the center of the rotating body 20 and extends to the rear side and is connected to a motor M that provides rotational force (power) so that the motor M rotates the rotating shaft 21 so that the rotating body 20 ) can be rotated.

Therefore, it is possible to open and close the pair of valve units 100 through one motor M, rather than providing power by connecting to a power source for each valve as in the conventional valve, thereby reducing energy consumption such as power and opening and closing the valve. Efficiency can be improved through, and since the rotary on-off valve 1 can be easily operated by preparing only the motor M from the outside, the rotary on-off valve 1 can be easily equipped and used even in an environment where power supply is difficult. have.

In the above-described rotary on-off valve 1, when the rotating body 20 rotates inside the valve unit 10 through the motor M, the piston 120 provided inside the valve unit 10 rotates the rotating body 20. Both ends can drive the piston 120 while pushing each other (see FIG. 8), and when the rotating body 20 rotates and is separated from the piston 120 in contact with each other, the central spring 123 built into the valve unit 100 ) Through this, the piston 120 returns to its original position (see FIG. 9), and while driving the piston 120 of the other valve unit 100 provided in the direction of rotation of the rotating body 20, the rotation of the rotating body 20 It is possible to sequentially drive a plurality of valve units 100 through rotation.

In such a rotary on-off valve 1, the rotating body 20 rotates inside the valve unit 10 in a single direction, so that each valve unit 100 can be opened and closed in a CAM method, and the rotation of the rotating body 20 It is possible to control the fluid while adjusting the speed, and it has an effect of excellent usability because no large force is generated to open and close the orifice in the valve unit 100 .

Optimal embodiments have been disclosed in the drawings and specifications. Here, although specific terms have been used, they are only used for the purpose of describing the present invention and are not used to limit the scope of the present invention described in the meaning or claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: rotary on-off valve
10: valve part
11: connector
100: valve unit
101: inflow hole
102: discharge hole
110: valve frame
111: upper hollow
112: lower hollow
113: central chin
120: piston
121: upper piston
121a: upper protrusion
121b: coupling protrusion
122: lower piston
122a: lower protrusion
122b: coupling groove
123: central spring
124: main O-ring
125: finish O-ring
130: inlet
140: outlet
150: upper cap
160: lower cap
161: piston through hole
20: rotating body
21: axis of rotation
M: motor

Claims (11)

In the on-off valve capable of inflow and outflow of fluid,
A valve unit disposed in a circular shape and including a plurality of valve units; and
It is composed of; a rotating body provided on the central side of the valve unit and opening and closing the valve unit while rotating by a connected motor.
On one side of the valve unit,
an inflow hole through which fluid is supplied from the outside and moved into the valve unit; and
A discharge hole through which the fluid introduced into the valve unit is discharged to the outside is formed,
The valve unit includes a piston whose upper end is retracted and protrudes to the lower side of the valve unit and extends toward the center of the valve unit,
When the rotating body rotates, a side end contacts the piston to drive the piston,
The piston closes the inlet hole or the discharge hole while moving along the inside of the valve unit, and the inlet hole and the discharge hole are open and closed, characterized in that opposite to each other.
According to claim 1,
The valve unit includes a connector that allows a plurality of valve units to be arranged in a circular shape and spaced apart from each other at regular intervals.
The valve unit is a rotary on-off valve, characterized in that both ends are connected and fixed to the connector, respectively.
According to claim 1,
In the valve unit, the piston protruding downward is directed toward the center of the valve unit, but is inclined at a certain angle in a direction opposite to the rotational direction of the rotating body,
The rotational opening and closing valve, characterized in that both ends of the rotating body come into contact with the pair of pistons to drive them during rotation, and the pair of pistons in contact with the rotating body are provided on opposite sides of each other.
According to claim 1,
The valve unit,
an upper hollow which communicates with the inlet hole and has an upper end of the built-in piston provided therein;
a lower hollow in which the inside communicates with the discharge hole and the lower end of the built-in piston is provided therein; and
Including; a center chin vertically protruding from the center of the inner surface of the valve unit,
The upper hollow is provided on the upper side around the central chin, and the lower hollow is provided on the lower side around the central chin,
A central hole through which the piston can pass is formed at the center of the central jaw,
The piston is a rotary on-off valve, characterized in that the upper end is inserted into the center of the lower surface of the valve unit, the upper end is provided in the upper hollow through the central jaw, and the lower end protrudes outward when the valve unit.
According to claim 4,
the piston,
a top protrusion built into the upper hollow and having an extended outer diameter to have a cylindrical shape; and
A lower protrusion that is embedded in the lower hollow and has an extended outer diameter to have a cylindrical shape is formed, respectively.
The upper protrusion and the lower protrusion are formed larger than the inner diameter of the central hole,
When the piston moves in the up and down direction, the upper end protrusion moves up and down inside the upper hollow and selectively closes the inlet hole and the upper side of the central hole, and the lower end protrusion moves up and down inside the lower hollow, A rotary on-off valve characterized in that the discharge hole and the lower side of the central hole can be selectively closed.
According to claim 5,
A main O-ring is provided on the outer circumferential surface of the upper protrusion and the outer circumferential surface of the lower protrusion, respectively.
A finishing O-ring is provided on an outer circumferential surface of the piston in contact with the lower surface of the upper protrusion and on an outer circumferential surface of the piston in contact with the lower surface of the lower protrusion, respectively.
The main O-ring is a rotary on-off valve, characterized in that for closing the gap between the outer circumferential surface of the installed configuration and the inner surface of the valve unit.
According to claim 5,
A central spring is provided on the outer circumferential surface of the piston,
The upper surface of the central spring is in close contact with the lower surface of the central jaw, the lower surface is in close contact with the upper surface of the lower protrusion, and when the piston moves toward the upper protrusion through the rotating body, the central spring is compressed, and the rotating body and the central spring are in close contact with each other. When the piston is spaced apart, the rotary on-off valve characterized in that the piston returns to the original position through the elastic restoring force of the compressed central spring.
According to claim 4,
The upper and lower surfaces of the valve unit are open,
an upper cap provided on an open upper surface of the valve unit to form the upper hollow; And a lower cap provided on the open lower surface of the valve unit to form the lower hollow,
A rotary on-off valve characterized in that a piston through-hole through which the piston end can pass through is formed in the center of the lower surface of the lower cap.
According to claim 8,
A finishing O-ring is further provided on the outer circumferential surface of the piston,
The closing O-ring is a rotary on-off valve, characterized in that when the piston protrudes out of the lower cap, the closing O-ring closes a gap between the outer circumferential surface of the piston and the inner circumferential surface of the piston through-hole.
According to claim 1,
The valve unit,
an inlet having one end intercalated and coupled to the inlet hole and the other end connected to a hose supplying fluid; and
One end is inserted and coupled to the discharge hole, and the other end is a discharge port connected to a hose through which the fluid in the valve unit is discharged;
One end of the inlet and the outlet is threaded,
Screw threads are formed on inner surfaces of the inlet hole and the discharge hole,
The inlet and the outlet are rotary on-off valves, characterized in that screwed to the inlet hole and the outlet hole.
According to claim 1,
The piston is composed of an upper piston and a lower piston,
The upper piston,
An upper protrusion with an outer diameter extending at the top; And when the center extends toward the lower piston and a coupling protrusion formed with a screw thread along the outer circumferential surface; includes,
The lower piston is formed with a lower protrusion having an outer diameter at the upper end, and a part of the lower end protrudes outward through the lower surface of the valve unit to come into contact with the rotating body,
At the center of the upper surface of the lower protrusion, a coupling groove is formed, which is recessed in a shape corresponding to the coupling protrusion, and a screw thread is formed on the inside of the recess.
The rotary on-off valve, characterized in that when the upper piston and the lower piston are coupled, the coupling protrusion is inserted into the coupling groove and screwed together.

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