KR20210111476A - Valve actuator assembly - Google Patents

Abstract

The present invention relates to a valve actuator assembly. More specifically, the valve actuator assembly is switched into a manual mode when an emergency situation such as short-circuit occurs to be directly controlled at a proper opening degree by a manager or a user without power of a driving means to prevent degradation of heating efficiency or overheating. The valve actuator assembly is used by controlling a manual control knob without an additional mode control knob, thereby improving use convenience and preventing load from occurring since linkage to a driving means is released during manual control to easily control the manual control knob.

Description

Valve Actuator Assembly {VALVE ACTUATOR ASSEMBLY}

The present invention relates to a valve actuator assembly, and more particularly, when an emergency such as a power outage occurs, it is switched to a manual mode and a manager or a user directly manipulates an appropriate opening degree without power from a driving means to reduce heating efficiency or prevent overheating However, the convenience of use is improved by adjusting the manual control knob without a separate mode control knob and used. It relates to a valve actuator assembly capable of being used.

In general, in general houses, public facilities, offices, etc., a heating system is built in order to always adjust the indoor temperature to an appropriate temperature.

Such a heating system usually adjusts the water temperature to properly adjust the internal temperature. For this purpose, a temperature controller for sensing the temperature is provided in the room, and the control signal transmitted from the temperature controller controls the valve actuator to control the valve. By adjusting the opening degree, the flow rate of hot water is adjusted to control the indoor temperature.

In general, a valve actuator operates a motor according to a signal to induce elevation of the valve stem to open or close the valve.

However, in this conventional valve actuator, the opening degree of the valve is automatically adjusted by driving the motor in a normal state in which power is supplied, but the power supplied to the motor may be cut off, or the motor may lose power due to failure or failure. In this case, when the power is cut off, the valve stem stops at the stopped position, so the opening degree is large, causing too much heating water to flow, resulting in wastage of energy, or the opening degree is too small, leading to problems with no heating.

Therefore, in order to solve this problem, various conventional techniques for enabling manual operation have been proposed.

As such prior art, there is registered Patent No. 10-0540158 "Valve actuator" (hereinafter referred to as prior art 1),

In the prior art 1, the upper case having a through hole in the front and the lower case coupled to the lower part of the upper case, the lower case having a coupling part to which the on/off valve is coupled to the lower end is formed detachably, and installed inside the main body, A motor having a driving gear installed on the motor shaft, a printed circuit board on which a control circuit for controlling the driving of the motor is mounted according to a signal from a temperature controller installed in the room, and an insert receiving the power of the driving gear are formed, The other side of the insertion part is made of a shaft and supported by a through hole of the upper case, and a power transmission part having an eccentric cam formed on the shaft, a plate member having a coupling hole to be coupled to the outer peripheral surface of the eccentric cam of the power transmission part, and the plate member An elevating member formed integrally and comprising an operating rod that opens and closes the opening/closing valve by elevating and lowering by the rotation of the eccentric cam, coupled to the shaft end of the power transmission unit and rotatably installed from the outside of the main body, the eccentric cam Presents a technology composed of a manual lever that enables manual adjustment of the flow rate of the fluid flowing through the on/off valve by the rotation angle of the

In addition, there is a prior art Patent Publication No. 10-2009-0014609 No. "motorized valve actuator capable of controlling the flow rate" (hereinafter referred to as prior art 2),

In the prior art 2, the rotation flange 11 is rotated by receiving power from the motor 10 inside the actuator 7 to rotate the opening/closing disk 27 of the electric valve 8, and the opening/closing disk 27 is In the electric valve actuator for opening and closing the adjustment hole 140 of the lower seat disk 30, the opening range of the adjustment hole 140 of the seat disk 30 is determined by the rotation amount of the opening and closing disk 27 By configuring so as to be possible, a separate flow control valve becomes unnecessary, and thus, it is possible to not only reduce costs but also simplify the system, and present a technology that has the effect of enabling automatic control by a program.

As another prior art, there is registered Patent No. 10-0972592 "valve actuator" (hereinafter referred to as prior art 3),

The prior art 3 is a case; a motor located inside the case and driven by an external power supply; a rotating shaft connected to the motor to rotate; a cam formed on the rotating shaft; an opening and closing body for opening and closing a valve by lifting and lowering by the cam; and a circuit part for controlling the driving of the motor, wherein the case is divided into an upper case and a lower case, a cutout is formed on the rear surface of the lower case, and a cutout is formed on the rear surface of the lower case and extended to the cutout of the lower case An insertion hole is formed on the lower surface, and a closing portion corresponding to the cutout is formed on the rear surface of the upper case to provide a valve actuator in which a power supply line is formed in the insertion hole,

Registered Patent No. 10-1095098 "Electric actuator for driving globe valve" (hereinafter referred to as prior art 4) is structurally cut off the power to the motor when a problem such as a failure occurs in the actuator itself and manually shuts off the valve itself. The technology that can open and close is presented.

However, in the case of the prior art 1 to 4, all of the manually-operable control knobs are shaft-coupled to the motor, which is the driving source, or the shaft of the motor and a plurality of gears are shaft-coupled in a gear-coupled state. Since it is not a structure that can only be operated separately, there is a difficulty in artificially rotating even the motor that has been stopped due to a power failure during operation. In addition, if a number of gears are engaged together, there is a limit in that manual operation is meaningless because it takes a lot of force to be difficult for even an adult man to operate.

Therefore, the present invention has been devised to solve the above problem,

It consists of a main body, a driving means provided in the main body, and a camshaft provided with an actuating cam for opening and closing the valve stem through an elevating operation, and further comprising a power transmitting means so that the driving means interlocks with the camshaft in normal times. In order to provide a valve actuator assembly capable of automatically rotating the actuating cam by manually operating the camshaft through the manual adjustment knob to raise or lower the valve stem when the driving means does not operate due to a power outage, etc. do.

In particular, when manually operating the valve stem, an object of the present invention is to provide a valve actuator assembly capable of easily manipulating the manual control knob with little force as the interlocking between the driving means and the camshaft is released.

Furthermore, it is another object to provide a valve actuator assembly capable of improving durability by further providing a reinforcing member on the upper portion of the stem fastening member so that the operating cam is grounded with the reinforcing member.

In order to achieve the above object, the valve actuator assembly according to the present invention is

A valve actuator assembly for driving a valve stem, comprising:

a body comprising an upper body and a lower body that are assembled together;

a driving means embedded in the main body and including a driving motor having a driving shaft and a driving gear fixed to the driving shaft;

A driven gear that is engaged with the driving gear, a through hole is formed in the center, and a coupling protrusion is formed around the through hole, a column passing through the through hole, and a head provided on one side of the pillar portion and having a coupling hole into which the coupling protrusion is fitted Power transmission means comprising a power transmission member made of a part;

a camshaft having a shaft portion through which the pillars passing through the through hole are introduced so as to be interlocked with each other and having an operating cam;

a manual control knob coupled to the column part passing through the shaft part;

A stem fastening hole that is grounded on the lower side of the actuating cam, the upper end of the valve stem is fixed, and elevates or lowers the valve stem according to the operation of the actuating cam;

When the coupling protrusion and the coupling hole are engaged, the driven gear and the power transmission member rotate together by the operation of the driving means to automatically rotate the operating cam,

When the coupling protrusion is separated from the coupling hole by pressing the mode control knob, the operation cam can be manually rotated by manipulating the mode control knob without the driving means interlocked.

As described above, the valve actuator assembly according to the present invention is

In adjusting the opening degree of the valve stem consisting of a main body, a driving means, a camshaft and a stem fastener, the power of the driving means rotates the camshaft by the power transmission means in normal times so that the opening degree of the valve stem can be automatically adjusted. , in the event of a power outage, power failure, or motor failure of the driving means, the user can manually rotate the camshaft through the manual adjustment knob to adjust the valve stem opening, thereby contributing to energy saving and heating efficiency. have.

In particular, it improves the convenience of use by enabling manual operation by pressing and rotating the manual control knob without a separate mode control knob, etc.

In the case of manual operation, since it can be operated in a state completely separated from the driving means by the operation of the power transmission means, there is an effect that anyone can easily and with little force by securing the convenience and ease of operation. .

In addition, by providing a reinforcing member on the upper part of the stem fastening member, and configuring the reinforcing member to be grounded under the operating cam, there is an effect that the durability of the stem fastening member can be improved.

1 and 2 are perspective views of a valve actuator assembly according to the present invention;
3 is an internal coupling view of a valve actuator assembly according to the present invention;
4 and 5 are exploded perspective views of a valve actuator assembly according to the present invention;
6 is an enlarged coupling view of the power transmission means and the camshaft of the valve actuator assembly according to the present invention;
7 is an enlarged exploded view of the power transmission means and the camshaft of the valve actuator assembly according to the present invention;
8 is a cross-sectional view of a valve actuator assembly according to the present invention;
9 and 10 are cross-sectional views of the power transmission means and the camshaft of the valve actuator assembly according to the present invention;

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

The present invention is intended to be described in detail in the text of the embodiment (態樣, aspect) (or embodiments) can be applied to various changes and can have various forms. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, particularly the tens digit and the one digit, or the tens digit, the one digit, and the same alphabetic reference numerals indicate members having the same or similar functions, and, unless otherwise stated, each The member indicated by the reference sign may be understood as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick) or small (or thin) in size or thickness in consideration of convenience of understanding, or simplified, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

The valve actuator assembly (A) according to the present invention includes a main body 10, a driving means 20, a power transmission means 30, a camshaft 40, a manual adjustment knob 50, and a stem fastener 60. As a result of this, each configuration will be described in more detail with reference to the drawings.

First, as shown in FIGS. 1 and 2 , in the main body 10 , the upper body 11 and the lower body 13 are assembled with each other to constitute one main body 10 .

The lower body 13 is provided with a stem socket 15 and a fastener 16. The stem socket 15 refers to a portion to which the valve stem (axis for elevating and lowering the valve disk) is fastened. It is made to be screwed with the valve stem, and it is obvious that an O-ring 17 is further provided to improve sealing properties, and since this structure is similar to that of a conventionally known valve actuator, a detailed description will be omitted. .

A conduit 133 for cable wiring is connected to one side of a lower surface of the lower body 13 .

In a state in which the upper body 11 and the lower body 13 are assembled, that is, a manual control knob 50 is provided on one side of the body 10, and a separate scale is displayed on the manual control knob 50, so that the valve It is desirable to be able to accurately recognize and control the opening degree of

3 to 5, a plurality of spaces partitioned by a plurality of partition walls 131 are formed inside the main body 10. In these spaces, a driving motor 21 and a driving gear 23 to be described later are formed. ) is a space for components such as those to be stably seated.

First, in the present invention, the opening degree of the valve stem can be adjusted through the driving means 20 in normal times, and the driving means 20 includes a driving motor 21 and a driving gear coupled to the driving motor 21 . (23) is included.

First, the driving motor 21 is provided on one side of the main body 10, and the motor shaft protrudes, and the driving gear 23 is keyed to the motor shaft to form an integral body.

The driving means 20 is connected to the power transmission means 30 , and when the driving motor 21 rotates as the power transmission means 30 is connected to the camshaft 40 , the camshaft 40 is interlocked. The bar is made so that it can be rotated by

The power transmission means 30 includes a driven gear 31 positioned above the drive gear 23 so as to be engaged with the drive gear 23 and a power transmission member 33 coupled to the driven gear 31 . and the power transmission member 33 is coupled to be interlocked with a camshaft 40 to be described later, resulting in a drive gear 23, a driven gear 31, a power transmission member 33, and a camshaft ( 40) are made so that they can operate in conjunction with each other.

First, the driven gear 31 will be described in more detail. As shown in FIGS. 6 and 7 , it is provided so as to be engaged with the driving gear 23 , and the center of the driven gear 31 . There is formed a through hole 315, more precisely, a seating groove 311 is formed in the middle gear, and an inner flange portion 313 having a through hole 315 formed on the bottom of the seating groove 311 is formed. is formed, and the inner flange portion 313 has a plurality of coupling protrusions 317 protruding in the direction of the seating groove 311 .

Referring to the power transmission member 33 connected to the driven gear 31, the power transmission member 33 is largely composed of a head portion 331 and a pillar portion 333, more precisely, the head portion A coupling hole 331A to which the coupling protrusion 317 can be coupled is formed in 331 , and the column part 333 provided on the other side of the head part 331 may pass through the through hole 315 . The diameter of the head part 331 is made of a diameter that can be inserted into the seating groove 311 , and when the head part 331 is inserted into the seating groove 311 , the coupling is naturally performed. The protrusion 317 is made to be fitted into the coupling hole 331A.

At this time, the coupling protrusion 317 and the corresponding coupling hole 331A are formed in a plurality of radial shapes, each of which is formed in the shape of a long hole and a long projection long in one direction, so that when the driven gear 31 rotates, the power transmission member (33) is preferably made so that it can be rotated in conjunction with each other.

The power transmission member 33 is configured to be interlocked with the camshaft 40, and as a result, when the driven gear 31 rotates, the power transmission member 33 rotates, and the power transmission member 33 rotates. When is rotated, the camshaft 40 rotates and operates to rotate the actuating cam 43 .

First, the camshaft 40 will be described. The camshaft 40 has a shaft portion 41 formed in the direction of the rotation axis based on the rotation of the operation cam 43, and the non-circular operation cam 43 ), the actuating cam 43 is similar to a conventional cam, and a stem fastener 60 is disposed below the actuating cam 43 to be in contact with it.

At this time, in the present invention, a groove portion 431 is further formed along the edge of the actuating cam 43 , and a lubricant such as grease is applied to the groove portion 431 , thereby frictional force when in contact with the stem fastener 60 . It is possible to improve durability and enable smoother operation by reducing the

When explaining the linkage between the power transmission member 33 and the camshaft 40, first, a guide groove 333A formed in the longitudinal direction is provided on the outer surface of the column part 333 of the power transmission member 33, and , the shaft portion 41 of the camshaft 40 is provided with a guide projection 411 fitted into the guide groove 333A, and even if the power transmission member 33 slides in the direction of the rotation axis, the guide The groove (333A) and the coupling of the guide projection (411) is maintained so that it can be moved in association with each other at all times.

In addition, the present invention is designed to be able to manually adjust the actuating cam 43, and the main body 10 is provided with a manual control knob 50 protruding outward, and at this time, the manual control knob 50 is further provided with a fixing protrusion 51 that can be fitted into the guide groove 333A of the power transmission member 33 so that the manual control knob 50 can rotate in conjunction with the power transmission member 33 is configured to

That is, the pillar portion 333 passes through the through hole 315 of the driven gear 31 , and then passes through the shaft portion 41 of the camshaft 40 and is fastened to the manual adjustment knob 50 . will become

As a result, when the manager or the user rotates the manual control knob 50, the power transmission member 33 rotates, and the camshaft 40 interlocked therewith rotates to rotate the actuating cam 43. is configured to

In addition, in order to protect the camshaft 40, a cam bracket 45 may be further provided on the upper portion of the camshaft 40, and between the cam bracket 45 and the manual adjustment knob 50, a limit switch ( 19) is further provided to guide the switching operation.

More specifically, a sensor unit 191 is provided under the limit switch 19, and a switching protrusion 47 that contacts the sensor unit 191 by rotation is provided on the outer surface of the camshaft 40. , The position of the switching protrusion 47 is an opening guide protrusion 471 formed at a position that can be in contact with the sensor unit 191 when the valve stem is located at the uppermost point (opening point), and the valve stem When located at the lowest point, it may be formed of a closing guide protrusion 473 formed at a position that can be in contact with the sensor unit 191, and when the switching protrusion 47 comes into contact with the sensor unit 191, it It is externally monitored so that the user can easily check the open or closed state through the regulator.

A stem fastening hole 60 is provided at a lower portion of the actuating cam 43 to raise or lower the valve stem, and as shown in FIGS. 3 to 5, 8 and 9, the stem fastening The sphere 60 has the upper end of the valve stem fastened in the hollow formed on the lower side, and the valve stem is generally configured to be elastically movable in the vertical direction by its own spring, but the present invention is the stem fastening hole 60 inside By further providing a buffer spring 66 to the valve stem more flexibly pressurized so that the impact can be alleviated.

Referring to the cross-sectional view of FIG. 8, the stem fastener 60 is described in more detail. The stem fastener 60 has an upper slider 61 and a lower slider having a buffer spring 66 therein. 62), the lower slider 62 is formed with a screw coupling hole (331A), characterized in that the push member (64) is screwed into the screw coupling hole (331A).

At this time, the upper surface of the upper slider 61 is in contact with the lower portion of the operating cam 43. In order to solve the problem that the upper surface of the upper slider 61 is worn out due to repeated use, the opening and closing operation of the valve becomes inaccurate. , a reinforcing member 67 made of a material such as iron or steel is further provided on the upper surface of the upper slider 61 to improve durability,

The lower slider 62 is further provided with a push member 64 for substantially pressing the valve stem. This is to control the degree to which the valve stem is pressurized by adjusting.

That is, when the push member 64 is screwed in a fully raised state, during the opening operation, the valve stem rises to the uppermost end to enable full opening, but the push member 64 is screwed to slightly tilt downwards. In this case, since the valve stem does not rise to the top even when the opening operation is performed, it is possible to partially open the pipe, thereby reducing heating costs can be expected.

In addition, when describing the automatic and manual operation of the valve actuator assembly (A) according to the present invention with reference to FIG. 9,

First, in normal times, the driving gear 23 connected to the driving motor 21 is engaged with the driven gear 31 , and the power transmission member 33 is positioned in the seating groove 311 of the driven gear 31 . The head part 331 is drawn in and the power transmission member 33 is interlocked and rotated by the coupling of the coupling hole 331A and the coupling protrusion 317, and the power transmission member 33 is the camshaft 40. The camshaft 40 rotates as it interlocks with the guide protrusion 411 and the guide groove 333A by the coupling relationship so that the stem fastener 60 can be raised and lowered.

9 [A] shows this state, and the power transmission member 33 can slide horizontally on the left side of the head part 331 of the power transmission member 33 based on FIG. 9 [A]. A space is secured, and this space is referred to as a spaced space 35, and although not shown in the drawing, the spaced space 35 further includes an elastic member so that the power transmission member 33 is normally located on the right side. It is preferable to prevent the coupling relationship between the coupling hole 331A and the coupling protrusion 317 from being arbitrarily separated by receiving an elastic force.

FIG. 10 shows manual operation, and when manual operation is required due to a power outage, a power failure, or a failure of the driving motor 21, the user can use the manual adjustment knob exposed on the right side of the main body 10 based on FIG. 50) to the left, and when the manual control knob 50 is pressed, the power transmission member 33 moves to the left, and the head 331 moves to the separation space 35 to press the elastic member. However, the coupling hole 331A of the head part 331 and the coupling protrusion 317 of the driven gear 31 are separated from each other, and the interlocking between the driving means 20 and the power transmission member 33 is released.

At this time, when the manual control knob 50 is rotated, the driven gear 31 does not rotate and power is transmitted with the camshaft 40 as the interlocking relationship between the power transmission member 33 and the camshaft 40 is maintained. Only the member 33 is rotated, and the stem fastener 60 is raised and lowered using a small force, and as a result, the valve stem can be raised and lowered.

In addition, in the manual control knob 50 exposed to one side of the body 10, a separate packing member 53 is further provided in the gap between the manual control knob 50 and the body 10, so that oil leakage, water leakage, etc. It is desirable to prevent leakage in advance, and to completely block water leakage as the packing member 53 deforms and moves even when the manual adjustment knob 50 is pressed.

In addition, in the above description of the present invention, with reference to the accompanying drawings, a valve actuator assembly having a specific shape, structure and configuration has been mainly described, but the present invention is capable of various modifications, changes and substitutions by those skilled in the art, and such modifications, changes and substitution should be construed as belonging to the protection scope of the present invention.

A: Valve actuator assembly
10: main body 11: upper body
13: lower body 131: bulkhead
133: conduit 15: stem socket
16: fastener 17: O-ring
19: limit switch 191: sensor unit
20: driving means 21: driving motor
211: drive shaft 23: drive gear
30: power transmission means 31: driven gear
311: seating groove 313: inner flange part
315: through hole 317: coupling protrusion
33: power transmission member 331: head part
331A: coupling hole 333: column part
333A; Guide home 35: separation space
40: camshaft 41: shaft part
411: guide projection 43: operation cam
431: groove 45: cam bracket
47: switching projection 471: opening guide projection
473: closing guide projection 50: manual adjustment knob
51 ; Fixing projection 53: packing member
60: stem fastener 61: upper slider
62: lower slider 64: push member
66: buffer spring 67: reinforcing member

Claims (4)

In the valve actuator assembly (A) for driving the valve stem,
a body 10 comprising an upper body 11 and a lower body 13 that are assembled together;
a driving means 20 embedded in the main body 10 and including a driving motor 21 having a driving shaft 211 formed therein, and a driving gear 23 fixed to the driving shaft 211 ;
A driven gear 31 engaged with the driving gear 23 and having a through hole 315 formed in the center and a coupling protrusion 317 formed around the through hole 315, and a pillar passing through the through hole 315 Power transmission comprising a power transmission member 33 provided on one side of the portion 333 and the pillar portion 333 and comprising a head portion 331 having a coupling hole 331A into which the coupling protrusion 317 is fitted. means 30;
a camshaft 40 having a shaft portion 41 through which the column portion 333 passing through the through hole 315 is introduced so as to be interlocked with each other and provided with an actuating cam 43;
a manual control knob 50 coupled to the column 333 passing through the shaft portion 41;
A stem fastener 60 grounded to the lower side of the actuating cam 43, the upper end of the valve stem is fixed, and elevating or lowering the valve stem according to the operation of the actuating cam 43;
When the coupling protrusion 317 and the coupling hole 331A are engaged, the driven gear 31 and the power transmission member 33 rotate together by the operation of the driving means 20 to automatically activate the operating cam 43 . rotate,
When the coupling protrusion 317 is separated from the coupling hole 331A by pressing the manual control knob 50, the driving means 20 is not interlocked and the manual control knob 50 is operated to manually operate the operation. A valve actuator assembly, characterized in that made to be able to rotate the cam (43). The method of claim 1,
A guide projection 411 formed in the direction of the rotation axis is provided inside the shaft portion 41,
A guide groove (333A) into which the guide projection (411) is introduced is provided on the outside of the pillar part (333) so that the power transmission member (33) can cooperate with the camshaft (40) valve actuator assembly. The method of claim 1,
A seating groove 311 is formed in the driven gear 31, and an inner flange portion 313 in which the coupling protrusion 317 is formed is formed on the bottom surface of the seating groove 311,
When the head portion (331) of the power transmission member (33) is drawn into the seating groove (311), the coupling protrusion (317) is configured to be fastened to the coupling hole (331A). 4. The method according to any one of claims 1 to 3,
A reinforcing member (67) is further provided on the upper portion of the stem fastening hole (60), and the reinforcing member (67) is grounded on the lower side of the actuating cam (43).

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