KR101697047B1 - Valve driver - Google Patents

Abstract

The present invention relates to a valve driver, which comprises: a drive motor; a cylindrical cam member; a lifting member; and a manual operation lever. According to the present invention, assembly time can be significantly reduced, and a breakdown of an internal component and loosing of a coupling state which are caused by noise and vibration can be prevented. Moreover, all components in a casing can be compactly placed.

Description

Valve Drivers {VALVE DRIVER}

[0001] The present invention relates to a valve driver for controlling the inflow of cold and hot water in combination with a valve body such as a cold or hot water control. More specifically, the casing of the valve actuator is snap- A plurality of guide protrusions are integrally formed at intervals so as to firmly fix a cylindrical cam member having a motor shaft of a drive motor coupled to one side and a manual operation lever on the other side, A PCB mounting portion on which a PCB substrate having a motor mounting projection on which the driving motor is seated and a micro switch that gradually increases with the protrusion of the cylindrical cam member is seated is integrally formed and firmly seated in the casing, A ring nut having a threaded inside is inserted into the valve fixing portion protruding from the lower surface of the lower case, It is fixed by a fixing pin to be the decomposition of the valve actuator and valve body of the valve actuator simple.

2. Description of the Related Art Generally, a hot water heater for instantly heating cold water to use hot water more easily includes a water supply passage for storing water supplied from a water supply pipe, a heater for heating water stored in the water supply pipe in a hot water state, An inlet side distributor for distributing the water to the water supply water passage and a cold water pipe and a hot water pipe connecting the outlet side distributor for discharging the hot water supplied from the water supply pipe through the hot water pipe to the cold water pipe, And a flow control valve for controlling the flow rate of the hot water supplied to the cold water pipe via the outlet side distributor.

A conventional flow rate control valve connected to the same location as a hot water pipe such as a hot water heater or the like is shown in the "flow rate control valve for linear flow rate control ", which is filed and registered by the applicant of the present invention, A drive motor which is installed in the casing and is rotated in a forward, reverse or one direction; A hollow cylindrical cam member connected to the motor so as to be rotatable in the same direction as the driving motor; A lifting member installed to correspond to a lower end of the cylindrical cam member and lifting and lowering according to an elastic action of a spring corresponding to a rotating action of the cylindrical cam member to open and close a flow port in the valve body connected to the hot water pipe side ; The operating shaft is raised and lowered through the interlocking action of the drive motor, the cylindrical cam member, and the elevating member, and the V-port for opening and closing the flow path is also raised and lowered A port lifting / lowering member; The valve body is coupled to the lower end of the operating shaft and is provided to correspond to the flow port of the valve body. The valve is linearly opened and closed by moving up and down through the interlocking action of the driving motor, the cylindrical cam member, the elevating member, And a V-port for linearly controlling the flow rate of the hot water. In the conventional flow rate control valve, the opening and closing port of the "V" shape is lifted and lowered in accordance with the interlocking action of the driving motor and the cylindrical cam member, elevating member, And the rotor side brush in the motor rotating in the forward and reverse directions in accordance with the structural characteristics of the conventional screw feed type flow rate control valve is quickly worn out and the life of the motor is shortened. It is possible to solve the problems such that the rotation force of the motor itself is weak and the separate gear box necessarily has to be used, and the maintenance cost for the motor is also reduced.

However, the conventional casing has a problem that the upper and lower parts are coupled by the bolt fastening method so that the assembling time of the product takes a long time, and the parts inside the casing are very troublesome to replace.

In addition, there is a fear that the motor is closely attached to the inner wall of the casing, and the casing and the clearance are generated to cause noise and vibration.

In order to join the casing and the valve body, there has been a problem that the flow control valve and the valve body are disassembled very much by screwing the inner circumferential surface with a coupling nut having a threaded portion.

In addition, the conventional cylindrical cam member has a separate internal cylinder at one side and is coupled with the motor shaft, thereby complicating the structure and increasing the product cost.

Accordingly, in order to solve the problems of the related art, the valve driver of the present invention is characterized in that a plurality of guide projections and motor seat projections for guiding the drive motor and the cylindrical cam member are formed on the case wall surface, Can be prevented from being loosened due to noise and vibration due to the noise and vibration, and the PCB mounting portion, on which the PCB having the micro switch can be mounted, So that it is possible to compactly position all the components in the casing.

In addition, the ring nut and the valve fixing part of the lower case are easily combined by the fixing pin, and the fixing pin is pulled out without disassembling the ring nut, so that anyone can easily separate the valve actuator and the valve body The purpose is to make it possible.

In addition, one side of the cylindrical cam member is directly connected to the motor shaft without an actuator, so that the structure is very simple and the production cost can be reduced.

In order to solve such a technical problem,

A cylindrical cam member which is installed in the casing and which is rotated in one direction, a cylindrical cam member, one end of which is rotatably connected to the motor shaft of the driving motor and has contact protrusions, And a roller bushing provided corresponding to the lower end of the cylindrical cam member and capable of freely rotating so as to smoothly push the cylindrical cam member through the cylindrical cam member while rotating in correspondence with the cylindrical cam member, A lifting member that is lifted and lowered by the elasticity of the corresponding spring and opens and closes the flow port in the valve body and a manual operation lever that is coupled to the other end of the cylindrical cam member and is manually exposed to the outside of the casing, Wherein the casing has a fixing hole formed with a fixing hole around a lower portion thereof, And a lower case formed with fixing protrusions mounted on the fixing hole around the upper portion are snap-engaged with each other. Inside the upper case, a plurality of guide protrusions A motor mounting projection on which the driving motor is mounted and a substrate mounting portion on which the PCB having the micro switch is mounted are integrally protruded and formed on one side of an inner upper surface of the lower case, Wherein a ring nut having a threaded inside is inserted into a valve fixing part connected to a valve body and is fixed by a fixing pin.

In this case, the cylindrical cam member includes a cam portion corresponding to the roller bushing of the elevating member, and the cam portion is formed as an asymmetric cam so as to reduce a section requiring high torque.

A plurality of coupling protrusions are formed on an inner circumferential surface of the valve fixing portion protruded from the lower surface of the lower case, and a pin insertion hole is formed on both sides of the valve fixing hole. The ring nut is threaded on the inner circumferential surface, A pin through-hole is formed in the outer circumferential surface of the pin fixing hole so as to penetrate both sides of the fixing pin inserted in the pin insertion hole, the pin-through groove being formed in the outer circumferential surface so as to be inserted into the valve fixing portion, The fixing pin is formed in a 'C' shape, and a part of the extended portion facing the fixing pin is curved so as to correspond to the pin insertion hole and the pin through-hole.

The valve driver according to the present invention is characterized in that a plurality of guide projections and motor seat projections for guiding the drive motor and the cylindrical cam member are formed on the wall of the case, and the casing composed of the upper and lower cases are coupled with each other in a snap manner, , The failure and the coupling state of the internal parts can be prevented from being loosened due to the noise and vibration, and the substrate mounting part on which the PCB substrate equipped with the microswitch can be seated is formed in the lower case, There is an effect that can be made.

In addition, the ring nut is combined with the valve body, and the valve fixing portion of the ring nut and the lower case is easily coupled by the fixing pin. Then, the fixing pin is pulled out without disassembling the ring nut to easily separate the valve actuator and the valve body There is an effect that the parts can be replaced and repaired very easily.

In addition, one side of the cylindrical cam member is directly connected to the motor shaft without an actuator, so that the structure is very simple and the production cost can be reduced.

1 is a perspective view of a valve actuator according to the present invention;
2 and 3 are exploded views of a valve actuator according to the present invention.
4 is an AA sectional view of a valve actuator according to the present invention.
5 is a BB sectional view of a valve actuator according to the present invention.

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

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

1 is a perspective view of a valve actuator according to the present invention, FIGS. 2 and 3 are exploded views of a valve actuator according to the present invention, FIG. 4 is an AA sectional view of a valve actuator according to the present invention, Respectively, of the valve actuator according to the present invention.

1 to 5, a valve actuator 1 of the present invention includes a drive motor 10 installed in a casing 100 and rotated in one direction, A cylindrical cam member 30 rotatably connected to the cam member 12 and having contact protrusions 32 formed on the outer circumferential surface to be in contact with the button portion 22 of the micro switch 20, And a roller bushing 213 provided to correspond to the lower end of the cylindrical cam member 30 and capable of freely rotating to rotate smoothly through the cylindrical cam member 30 in correspondence with the cylindrical cam member 30, An elevating member 200 which is lifted and lowered by the elasticity of the spring 220 corresponding to the rotation action of the cam member 30 and opens and closes the flow port in the valve element, (52) is exposed to the outside of the casing (100), and the cylindrical cam member The casing 100 includes an upper case 110 in the form of a hull having a fixing hole 112 formed with a fixing hole 112a around a lower portion thereof, And a lower case 120 having fixing protrusions 122 attached to the fixing hole 112a is formed on an upper portion of the upper case 110. The upper case 110 is coupled to the driving motor 10 and the cylindrical cam member A motor mounting projection 123 on which the driving motor 10 is mounted is formed at one side of an inner upper surface of the lower case 120 and a plurality of guide projections 113 for fixing the motor mounting projections 123, A substrate mounting portion 124 on which a PCB substrate 23 provided with a micro switch 20 is mounted is integrally protruded and a screw 62 is fixed to a valve fixing portion 125, The ring nut 60 is inserted and fixed by the fixing pin 70 The features.

The cylindrical cam member 30 is provided with a cam portion 33 corresponding to the roller bushing 213 of the elevation member 200. The cam portion 33 is provided with an asymmetric cam As shown in FIG.

The upper case 110 formed as described above is formed as a box-shaped enclosure having a curved upper surface such as a cylindrical driving motor 10 and a cylindrical cam member 30.

At this time, on the upper surface of the upper case 110, a convex portion of the cam portion 33 of the asymmetric cam, that is, a nose, is smoothly and smoothly applied to the inner wall of the casing 100 when the cylindrical cam member 30 rotates A cam movement groove 114 partially protruding upward is formed so as to be compactly positioned inside the casing 100 as well as rotated.

In addition, a lever through hole 115 through which the manual operation lever 50 is inserted and the end of the manual operation lever 50 can be engaged with the cylindrical cam member 30 is formed on one side.

As described above, the upper case 110 may be formed with two or three pairs of symmetrically formed bosses 112 having a fixing hole 112a formed at a lower periphery thereof.

Therefore, the fixing protrusions 122 corresponding to the fixing holes 112a are coupled to the lower case 120 so that the upper case 110 and the lower case 120 are coupled to each other in a snap manner, The coupling is very simple and the cost can be reduced as compared with the method of fastening.

2 to 4, a plurality of guide protrusions 113 for fixing the drive motor 10 and the cylindrical cam member 30 are spaced apart from each other inside the upper case 110 Respectively.

The lower case 120 has a motor mount protrusion 123 on which the drive motor 10 is mounted and a substrate mount 124 on which the PCB substrate 23 is mounted to integrally protrude from one side of the upper surface The PCB board 23 on which the driving motor 10, the cylindrical cam member 30 and the micro switch 20 are mounted is compactly fixed inside the casing 100 constituted by the upper and lower cases 120.

The lower case 120 is formed in a substantially central portion with a cylindrical guide portion 126 through which the insertion hole 126a is inserted so that the elevation member 200 can be inserted, A motor seat protrusion 123 and a board seat part 124 are formed on both sides of the guide part 126. A diaphragm 127 is integrally formed on both sides of the guide part 126, So that one side of the PCB substrate 23 can be closely contacted.

In the meantime, three pieces of protruding substrate seating parts 124 are protruded around the upper surface of the lower case 120, so that corner portions and side portions of the PCB substrate 23 can be seated. And the other side is fixed to the diaphragm 127 formed on one side of the guide portion 126 in close contact.

3 and 5, the cylindrical cam member 30 is formed with the shaft engagement groove 34 so that one end thereof is coupled with the motor shaft 12 of the drive motor 10 in a direct coupling manner The inside of the shaft engagement groove 34 is formed in a latch shape so that the cylindrical cam member 30 can be rotated in one direction.

Therefore, it is possible to reduce the unit cost of the product because the structure is simple, without a separate clutch or the like, and is directly connected.

A manual lever coupling groove 35 is formed at the other end of the cylindrical cam member 30 so as to engage with the end of the manual operation lever 50 Contact protrusions 32 are formed to enable the button unit 22 to be operated when rotated by the driving motor 10 and the contact protrusions 32 are formed in correspondence with the number of the microswitches 20 And are formed at regular intervals at positions where they can press the button portion 22 in correspondence. 2 to 4, when two microswitches 20 are provided, the contact protrusions 32 are formed on the cylindrical cam member 30 at intervals of 180 degrees.

In addition, the elevating member 200 is mounted on the guide portion 126 of the lower case 120 and is provided to correspond to the lower end of the cylindrical cam member 30, and the rotation of the cylindrical cam member 30 (Not shown) while being lifted and lowered in accordance with the elastic action of the spring 220 to be pressed and restored in correspondence with the cylindrical cam member 30, as shown in Figs. 2 to 5 A movable member 210 having a spring receiving portion 211 in a stepped shape and formed integrally with an insertion protruding portion 212 at the lower center and an insertion protruding portion 212 of the movable member 210, And a spring seat part 231 corresponding to the spring seat part 211 on the side of the movable member 210 is formed at the center of the outer periphery, (Not shown) of the valve shaft 232 And a spring seating portion 231 of the pressing flange 230 and a spring seating portion 211 of the movable member 210 and a spring seating portion 231 of the pressing flange 230, And a spring 220 for returning the press-fitted movable member 210 to its original position corresponding to the rotational action of the cylindrical cam member 30.

The operation of the elevating member 200 having such a configuration corresponds to a known technique in the form of an elevating member provided in a conventional flow control valve.

The roller bushing 213 is provided at the upper center of the movable member 210 so that the roller bushing 213 can be smoothly pressed through the cam portion 33 of the cylindrical cam member 30 rotating according to the driving of the driving motor 10. [ And is coupled by the pin 213a in a rotatable state.

The protrusion 214 protruding from both sides of the upper portion of the movable member 210 is inserted into the guide portion 126 of the lower case 120 to prevent the elevation member 200 from rotating arbitrarily. A fixing groove 126a is formed.

The valve fixing part 125 protruding from the lower surface of the lower case 120 of the valve actuator 1 according to the present invention has a plurality of coupling protrusions 125a formed on the inner circumferential surface thereof, The ring nut 60 is formed with a thread 62 on the inner circumferential surface thereof and has an outer circumferential surface corresponding to the engaging protrusion 125a so as to be inserted into the valve securing portion 125 A pin through groove 63 is formed in the outer circumferential surface so as to penetrate both sides of the fixing pin 70 inserted into the pin insertion hole 125b corresponding to the pin insertion hole 125b, The pin 70 is formed in a 'C' shape and a part of the extended portion 72 facing the pin 70 is formed in a curved shape so as to correspond to the pin insertion hole 125b and the pin through-hole 63.

Therefore, after the fixing pin 70 is pulled out without disassembling the ring nut 60, the valve actuator 1 can be separated from the valve body, and then the valve body can be easily reassembled.

When the components of the valve actuator 1 are broken by such a structure, the time required for component replacement can be greatly reduced, and the binding force can be prevented from weakening due to recombination.

A pin guide protrusion 125c protrudes in the longitudinal direction of the valve fixing portion 125 at both ends of the pin insertion hole 125b of the valve fixing portion 125 to fix the fixing pin 70 when the fixing pin 70 is inserted. It is possible to easily fix the end of the extended portion 72 of the pin 70 to the side of the pin guide protrusion 125c and to push the ring nut 60 and the valve fixing portion 125 are firmly fixed.

The valve actuator 1 having such a structure detects the opening / closing operation of the valve body by the magnet and the magnetic sensor of the 'flow rate control valve for linear flow control' (patent registration No. 10-0976364) filed and registered by the applicant of the present invention Is changed to the pressing method of the button portion 22 of the micro switch 20, the detailed operation procedure is omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary,

1: valve actuator 10: drive motor
12: motor shaft 20: micro switch
22: button portion 30: cylindrical cam member
32: contact projection 33: cam portion
34: Shaft coupling groove 35: Manual lever coupling groove
50: manual operation lever 100: casing
110: upper case 112:
113: guide projection 114: cam moving groove
120: Lower case 122: Fixing projection
123: motor mount projection 124:
125: valve fixing portion 126: guide portion
127: diaphragm 200: lift member
210: movable member 212: insertion projection
213: roller bushing 220: spring
230: pressurizing flange 232: guide slide groove
233: Shaft seating groove

Claims (3)

A drive motor 10 installed in the casing 100 and rotated in one direction and a drive motor 10 having one end rotatably connected to the motor shaft 12 of the drive motor 10, A cylindrical cam member 30 formed on the outer circumferential surface of the cylindrical cam member 30 and having a gradually increasing contact point with the cylindrical cam member 30; A roller bushing 213 capable of freely rotating so as to perform a smooth pressing action through the cylindrical cam member 30 is provided and the spring 220 is lifted and lowered by the elasticity of the spring 220 corresponding to the rotating action of the cylindrical cam member 30 And the adjustment knob 52 is coupled to the other end of the cylindrical cam member 30 so that the adjustment knob 52 is exposed to the outside of the casing 100 so that the cylindrical cam member 30 And a manually operated lever (50) In,
The casing 100 includes an upper case 110 in the form of a hull and a fixing protrusion 122 mounted on the fixing hole 112a around the upper case 110. The fixing case 112 includes fixing holes 112a, And a plurality of guide protrusions 113 for fixing the drive motor 10 and the cylindrical cam member 30 are formed at the inner side of the upper case 110 with a gap therebetween, And a motor mounting projection 123 on which the driving motor 10 is mounted and a PCB substrate 23 on which the micro switch 20 is mounted are mounted on one side of the inner upper surface of the lower case 120, A ring nut 60 having a screw thread 62 formed therein is inserted into a valve fixing part 125 which is coupled to a valve body at a lower surface thereof by a fixing pin 70 Fixed,
The valve fixing part 125 protruding from the lower surface of the lower case 120 has a plurality of coupling protrusions 125a formed on the inner circumferential surface thereof and a pin insertion hole 125b formed at both sides thereof, A thread 62 is formed on the inner circumferential surface of the valve seat 60 and the outer circumferential surface of the screw hole 62 is formed in a serrated shape so as to be inserted into the valve fixing portion 125 in correspondence with the engaging protrusion 125a, Through holes 63 are formed in the outer circumferential surface so that both sides of the fixing pin 70 inserted in the pin insertion holes 125b are passed through,
The fixing pin 70 is formed in a curved shape such that a part of the extending portion 72 facing the fixing pin 70 corresponds to the pin insertion hole 125b and the pin through- Valve actuators. The method according to claim 1,
Wherein the cylindrical cam member 30 is provided with a cam portion 33 corresponding to the roller bushing 213 of the elevation member 200 and the cam portion 33 is formed of an asymmetric cam. delete

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