KR101607840B1 - The automatic on-off valve with a scotch yoke structure - Google Patents

The automatic on-off valve with a scotch yoke structure Download PDF

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Publication number
KR101607840B1
KR101607840B1 KR1020150114974A KR20150114974A KR101607840B1 KR 101607840 B1 KR101607840 B1 KR 101607840B1 KR 1020150114974 A KR1020150114974 A KR 1020150114974A KR 20150114974 A KR20150114974 A KR 20150114974A KR 101607840 B1 KR101607840 B1 KR 101607840B1
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KR
South Korea
Prior art keywords
mounting plate
shaft
automatic
plate
yoke arm
Prior art date
Application number
KR1020150114974A
Other languages
Korean (ko)
Inventor
안준성
Original Assignee
주식회사제이디
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Priority to KR1020150114974A priority Critical patent/KR101607840B1/en
Application granted granted Critical
Publication of KR101607840B1 publication Critical patent/KR101607840B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The present invention relates to an automatic opening and closing valve of a scotch yoke structure, comprising a first accommodating portion having a lower side opened and a second accommodating portion having an upper side opened with a boundary plate interposed therebetween, A body body having a seating protrusion formed with a through hole therein so as to protrude therefrom to connect the receptacle, and a first guide groove formed on the lower surface of the boundary plate; A driving means for constituting a lead screw rotating in accordance with driving of the driving motor in a first accommodating portion of the body body; A base cover coupled to a lower portion of the body body to cover the first receiving portion, and having a second guide groove and a rotation center hole formed on an upper surface thereof; A lead nut which is fitted in the first and second guide grooves in an upper and a lower side in a state of being threadedly engaged with the lead screw and which is moved laterally along the first and second guide grooves when the drive motor is driven; A yoke arm which is connected to the lead nut in a state of being fitted in the rotation center hole of the base cover and which rotates around the rotation center hole according to the left and right movement of the lead nut, A mounting plate which is seated on a mounting projection formed on a boundary plate of the body body in a state of being fitted to the outer periphery of a connection shaft of the yoke arm, a limit sensor which is installed in a pair with the mounting plate, An operation cam for actuating the limit sensor in response to the rotation of the yoke arm and an adjusting cam for adjusting an installation angle of the mounting plate which is in close contact with one side of the mounting plate in a state of being bolted to the body body, A bolt and a fixing spring for fixing a movement of the mounting plate whose one side is connected to the mounting plate and the other side is connected to the boundary plate of the body so as to transmit a tensile force to the mounting plate in the direction of the adjusting bolt, And a limit switch.

Description

[0001] The present invention relates to an automatic on-off valve having a scotch yoke structure,

The present invention relates to an automatic opening and closing valve of a scotch yoke structure, and more specifically, it is possible to realize not only low-cost production and high-precision installation but also high torque using the principle of leverage and the use of automatic and manual de- So that the parts can be prevented from being damaged due to immaturity or inadvertent operation even if the operator is not a skilled operator and the position of the limit sensor can be finely adjusted without disassembling the automatic opening / It is possible to precisely open / close the valve at the on / off position in accordance with the installation angle of the valve, as well as stably guide the installation plate without adjusting the installation angle, On the automatic opening and closing valve of the Scotch yoke structure in which the accident is prevented A.

In general, the open / close valve provided on the pipe for passing the fluid passes or blocks the fluid in the pipe by opening or closing the pipe by operation of the valve opening / closing device.

1, a conventional worm gear type valve opening / closing apparatus 10 includes a casing 1, a worm gear 2 having one end supported in bearings on the casing 1 and one end connected to the motor M A pair of limit switches 4a and 4b shorted or short-circuited by protruding portions of the worm wheel 3; a pair of limit switches 4a and 4b; Since the power is transmitted to the cam worm wheel 3 by the two to three threads formed in the worm gear 2, the risk of breakage can be reduced. Is very large.

In other words, when the thread of the worm gear 2 and the worm wheel 3 is partially broken due to repeated use, the valve opening / closing apparatus 10 according to the related art has a problem in that leakage of water is caused because the airtightness of the valve is not maintained In addition, the worm gear 2 and the worm wheel 3 are not easy to be machined, which has a disadvantage in that the manufacturing cost is high. In addition, there is a disadvantage in that the same torque is always maintained even at the opening / The control unit 5 including the driving unit such as the worm gear 2 and the worm wheel 3 and the limit switches 4a and 4b is disposed in the same space and is vulnerable to safety accidents there was.

Therefore, in order to solve the above-mentioned problems, a valve opening / closing device as disclosed in Japanese Patent Laid-Open Publication No. 10-2013-0132685 has been developed, thereby providing high torque at the time of valve opening and closing, lowering the manufacturing cost, .

However, since the conventional valve opening / closing apparatus described above does not describe a configuration for adjusting the position of the limit switch at all, the position setting of the limit switch can not be adjusted.

On the other hand, as a part for adjusting the position of the limit switch, a limit switch box having a valve opening / closing indicator such as that disclosed in Japanese Utility Model Publication No. 20-1999-0039412 has been developed.

1. Open Patent Publication No. 10-2013-0132685 (December 31, 2013) "Valve opening / closing device" - Kim Jin-il 2. Open Utility Model No. 20-1999-0039412 (November 15, 1999) "Limit Switch Box with Valve Opening and Closing Indicator" - Etchke Kontromatic Co., Ltd.

However, in the conventional valve opening / closing operation device configured as described above, two operation cams are combined with the bushing and the plurality of projections to be fixed to each other, and when the relative positions of these two operation cams are to be changed, The operation cam of the bushing is displaced from the bushing and then rotated appropriately to be coupled to the bushing again. This has a disadvantage that the position adjustment is complicated and the structure is complicated.

In addition, there is a problem that the function of the specific position is not displayed on the operation cam, so that there is a problem that the position of the operation cam is set incorrectly. In addition, there is a problem that it is difficult to finely adjust the position of the operation cam there was.

It is an object of the present invention to provide a yoke arm structure connected to a lead nut and capable of achieving low-cost fabrication and high-precision mounting, and also capable of achieving high torque by utilizing the principle of a lever at a closing timing of a valve having a large hydraulic pressure resistance. Closing valve of the present invention.

In addition, the present invention is not only capable of switching to a manual mode using a manual clutch, but also facilitates the use of the automatic and manual clutches via an elastic spring installed in the manual clutch, An automatic opening / closing valve of a scotch yoke structure which can prevent parts damage and safety accident due to immaturity or carelessness of operation even if not a worker.

In addition, according to the present invention, not only the position of the limit sensor can be finely adjusted by adjusting the installation angle of the mounting plate through the adjusting bolt formed on the limit switch, but also the mounting plate adjusted by the mounting angle is fixed by the fixing spring, Closing position of the limit sensor in accordance with the state of the valve and the piping can be precisely positioned so that the valve can be accurately opened and closed at the on / off positions.

In addition, according to the present invention, the adjustment bolt coupling portion is configured to communicate the outside of the body body with the second accommodation portion so that the adjustment bolt coupled to the adjustment bolt coupling portion can be engaged and tightened from the outside of the body body, Off valve of a scooter yoke structure which can easily adjust the on / off position of the limit sensor without any operation.

In addition, the present invention can stably guide the installation plate through which the angle of installation is adjusted through the guide limiting means, and also restricts the range of movement of the installation plate to be adjusted, thereby preventing a safety accident caused by a malfunction. Closing valve of the present invention.

According to an aspect of the present invention, there is provided a portable terminal including a first receiving portion having a lower side opened through a boundary plate and a second receiving portion having an opened upper side, And a first guide groove formed on a bottom surface of the boundary plate; A driving means for constituting a lead screw rotating in accordance with driving of the driving motor in a first accommodating portion of the body body; A base cover coupled to a lower portion of the body body to cover the first receiving portion, and having a second guide groove and a rotation center hole formed on an upper surface thereof; A lead nut which is fitted in the first and second guide grooves in an upper and a lower side in a state of being threadedly engaged with the lead screw and which is moved laterally along the first and second guide grooves when the drive motor is driven; A yoke arm which is connected to the lead nut in a state of being fitted in the rotation center hole of the base cover and which rotates around the rotation center hole according to the left and right movement of the lead nut, A mounting plate which is seated on a mounting projection formed on a boundary plate of the body body in a state of being fitted to the outer periphery of a connection shaft of the yoke arm, a limit sensor which is installed in a pair with the mounting plate, An operation cam for actuating the limit sensor in response to the rotation of the yoke arm and an adjusting cam for adjusting an installation angle of the mounting plate which is in close contact with one side of the mounting plate in a state of being bolted to the body body, A bolt and a fixing spring for fixing a movement of the mounting plate whose one side is connected to the mounting plate and the other side is connected to the boundary plate of the body so as to transmit a tensile force to the mounting plate in the direction of the adjusting bolt, A limit switch, and an automatic shut-off valve of a scotch yoke structure.

The use of the scutch yoke automatic open / close valve of the present invention enables low-cost fabrication and high-precision installation through the yoke arm structure connected to the lead nuts, and utilizes the principle of leverage at the closing timing of a valve having a large hydraulic pressure resistance So that high torque can be realized.

In addition, the present invention is not only capable of switching to a manual mode by using a manual declutching clutch, but also can be easily operated by using an automatic clutch and a manual clutch via an elastic spring installed in the manual clutch, There is an advantage that it is possible to prevent the parts damage and safety accident due to immaturity of the operation or carelessness.

In addition, according to the present invention, the position of the limit sensor can be finely adjusted by adjusting the installation angle of the mounting plate through the adjusting bolt formed in the limit switch, and the mounting plate adjusted by the mounting angle is fixed by the fixing spring. And the on / off position of the limit sensor can be accurately arranged in accordance with the state of the piping, so that opening and closing of the valve can be accurately performed at the on / off position.

In addition, according to the present invention, since the adjustment bolt coupling portion is configured to communicate the outside of the body body with the second accommodating portion, the adjustment bolt coupled to the adjustment bolt coupling portion can be engaged and tightened from the outside of the body body, The on / off position of the limit sensor can be easily adjusted without the need for the limit sensor.

In addition, the present invention can stably guide the installation plate through which the installation angle is adjusted through the guide restriction means, and can restrict the movement range of the installation plate to be adjusted, thereby preventing a safety accident caused by malfunction It is a useful invention.

1 is a schematic view showing a conventional worm gear type valve opening / closing device.
Fig. 2 is a perspective view of an automatic opening / closing valve of a scotch yoke structure so as to show the limit switch of the present invention. Fig.
3 is a perspective view showing the body body of the present invention in partial cross-sectional view.
4 is a sectional view showing an automatic opening / closing valve of a scotch yoke structure of the present invention.
FIG. 5 is a perspective view showing a barrel opening / closing valve of a scotch yoke structure shown by hiding a body body so that the inside of the present invention can be seen. FIG.
Fig. 6 is a perspective view showing a part of the driving means in exploded view in Fig. 5; Fig.
Figs. 7 and 8 are perspective views explaining a part of the driving means of the present invention. Fig.
9 is a perspective view partially illustrating the drive means, the base cover, the lead nut, the yoke arm, and the limit switch of the present invention.
Fig. 10 is a perspective view showing a cross section of the automatic opening / closing valve of the scotch yoke structure of the present invention. Fig.
11 is an enlarged view of a portion A in Fig.
12 is a perspective view showing a state where the adjusting bolt of the present invention is coupled to the body body from the outside.

Hereinafter, the structure of the present invention will be described.

As shown in FIGS. 2 to 5, the automatic open / close valve 1000 of the scooter-yoke structure is installed in a butterfly valve (not shown) to open and close a valve, and includes a body 100, And includes a drive unit 200, a base cover 300, a lead nut 400, a yoke arm 500, and a limit switch 600, which will be described in detail below.

2 to 4, the body 100 includes a first receiving portion 110 having a lower side opened through a boundary plate 130, And a second accommodating portion 120 having an upper side opened is formed at the upper portion.

In addition, a boundary plate 130 of the body 100 has a seating protrusion 140 formed therein with a through-hole 141 for communicating the first and second receptacles 110 and 120, And a first guide groove 150 formed in the lower surface of the second housing part 120. The seating protrusion 140 protrudes from the second housing part 120 and is coupled with the yoke arm 500 The first guide groove 150 acts to guide the left and right movement of the lead nut 400 so that the interlocking operation of the yoke arm 500 is smoothly performed .

4 to 10, the driving unit 200 includes a body 200 having a lead screw 240 that rotates according to the driving of the driving motor 211, The motor shaft 210, the worm wheel 220, the automatic decelerator 230, the lead screw 240, the shaft 250, the handle 260, the manual decelerator 270, And a connection holder 290, which will be described in more detail below.

The motor shaft 211 of the driving means 200 is configured to rotate the lead screw 240 for opening and closing a valve and is constituted by a driving motor 211 coupled to the body 100, And rotates in accordance with the driving of the motor 211.

The worm wheel 220 of the driving means 200 is coupled to the motor shaft 210 by a worm gear so as to be interlocked with the worm wheel 220. The worm wheel 220 forms a hollow in which the shaft of the lead screw 240 is fitted in the inner periphery, And is connected to the outer periphery of the shaft 241 of the lead screw 240 through a snap ring or the like.

An automatic protrusion 221 is formed on one side of the worm wheel 220 to rotate the lead screw 240 by interlocking the automatic disengaging clutch 230. The automatic protrusion 221 rotates the worm wheel 220 It is possible to easily construct the nut by inserting a nut which is screwed into the end of the nut.

The automatic decoupler 230 of the driving means 200 is configured to interlock with the automatic protrusion 221 of the worm wheel 220 to perform the rotational operation of the lead screw 240 as described above, A first interlocking projection 231 formed to correspond to the automatic protrusion 221 and engaged with the automatic protrusion 221 and a second interlocking protrusion 232 formed at the other side thereof to be symmetrical to the first interlocking projection 231, .

The automatic ditching clutch 230 is formed at its center with a polygonal groove 233 through which the end of the shaft 241 of the lead screw 240 is fitted so that the automatic ditching clutch 230 moves in the left and right direction And a connecting protrusion 235 for connecting the shaft 250 is formed at the center of the other side of the automatic clutch release 230.

The lead screw 240 of the driving means 200 is configured to open and close the valve through interlocking of the yoke arm 500 by transferring the lead nut 400 in the left and right direction through a rotational operation, 100), and is rotatably installed, and a thread is formed on the outer periphery thereof.

The spindle 241 is provided at one end of the lead screw 240 with a worm wheel 220 inserted thereinto. An end of the spindle 241 is connected to an end of the lead screw 240, And a polygonal protrusion 241a is formed to be engaged with and engage with the polygonal groove 233 of the protrusion 230.

Therefore, when the drive motor 241 is driven, the worm wheel 220 coupled to the motor shaft 210 rotates, and the automatic protrusion 221 formed on the worm wheel 220 is rotated by the automatic disengagement The rotation of the lead screw 240 inserted in the polygonal groove 233 of the automatic decoupler 230 is performed through the interlocking operation of the automatic decelerator 230 as described above.

The shaft 250 of the driving means 200 is one of the valves for manually opening and closing the valve and includes a coupling 251 fitted to the coupling protrusion 235 of the automatic decoupler 230, And an operation shaft 253 integrally formed therewith.

The coupling 251 of the shaft 250 may be formed at one side of the shaft 250 to be easily connected to the coupling protrusion 235 of the automatic clutch release 230, And a pinhole 253a to which the pin 261 is coupled is formed at the end for coupling with the handle 260 for manual operation.

The handle 260 of the driving means 200 is coupled with the pin 261 to the pinhole 253a formed at the end of the operating shaft 253 of the shaft 250 to manually operate the driving means 200 A first fitting groove 263 in which the end of the operating shaft 253 of the shaft 250 is fitted and a second fitting groove 264 in which the coupling holder 290 is fitted are formed on one side, A pin coupling hole 265 for coupling the pin 261 is formed in the pin hole 253a of the operation shaft 253 fitted in the fitting groove 263.

The manual decoupler 270 of the driving means 200 is configured to be fitted to the outer periphery of the operating shaft 253 formed on the shaft 250 for manual operation of the driving means 200, It is preferable that a square hole 274 is formed through the inner periphery of the shaft 250 for interlocking with the manual clutch 260. In order to couple the shaft 250 and the manual clutch 260, And further includes a rectangular protrusion 254.

The manual clutch 272 is engaged with the second interlocking projection 232 of the automatic clutch release mechanism 230 for manual operation in response to driving of the handle 260, And an insertion groove (273) in which the elastic spring (280) is inserted is formed in the inner periphery.

The elastic spring 280 controls the automatic operation and the manual operation of the driving means 200. The elastic spring 280 has a structure in which one side of the elastic spring 280 is in close contact with the connecting hole 251 of the shaft 250, The automatic protrusion 221 of the worm wheel 220 and the automatic protrusion 221 of the worm wheel 220 are elastically operated to press the shaft 250 in the direction of the worm wheel 220 by being closely attached to one surface of the manual clutch 270. [ The engagement of the first cooperating protrusions 231 of the clutch 230 with each other, that is, the disengagement of the second cooperating protrusions 232 of the automatic disengaging clutch 230 from the passive protrusions 272 of the manual disengaging clutch 270 .

Therefore, in a state in which the operator does not operate the handle 260, the driving means 20 can be automatically operated.

When the worker applies a force in a direction of pulling the handle 260, the shaft 260 coupled with the handle 260 is pulled and the automatic clutch release mechanism 230 The automatic protrusions 221 and the first interlocking protrusions 231 are separated from each other and the second interlocking protrusions 232 and the second interlocking protrusions 231 are separated from each other, The manual projections 272 are engaged with each other so that the manual operation of the driving means 200 using the handle 260 can be performed.

The connection holder 290 of the driving means 200 is disposed between the handle 260 and the manual clutch release 270 so that the driving force of the handle 260 is more easily transmitted to the manual clutch release 270 And a through hole 295 is formed in the fitting protrusion 294 to be coupled to the second fitting groove 264 of the handle 260 so as to be bolted to one surface of the passive clutch 270.

4 to 6 or 9 and 10, the base cover 300 is coupled to the lower portion of the body 100 to cover the first receiving portion 110, Two guide grooves 350 and a rotation center hole 310 are formed.

Here, the second guide groove 350 has a structure that acts to smoothly perform the interlocking operation of the yoke arm 500 by guiding the lead nut 400 to the left and right in the same manner as the first guide groove 150 The rotation center hole 310 functions as a center of rotation of the yoke arm 500 and functions as the through hole 141 formed in the seating protrusion 140 of the body 100, To the yoke arm (500).

Fourthly, the lead nuts 400 are inserted into the first and second guide grooves 150 and 350 while being screwed to the lead screws 240. When the drive motor 211 is driven, 2 guide grooves 150 and 350. The yoke arm 500 is configured to pivot.

Fifthly, the yoke arm 500 is constructed in the body 100 and is rotated by the lead screw 240 of the driving means 200 so that the upper portion of the yoke arm 500 rotates around the boundary of the body 100 And is rotatably coupled to the through hole 141 of the seating protrusion 140 formed on the plate 130 so as to protrude upward from the second accommodating portion 120. The lower portion of the second accommodating portion 120 protrudes upward from the rotation center hole 310 of the base cover 300, And a connecting shaft 550 is formed at the upper and lower portions so as to be rotatably coupled and positioned in the first receiving portion 110.

The guider 510 is formed on the outer periphery of the yoke arm 500 and has a guider 510 fitted to the outer periphery of the lead nut 400. The guider 510 includes a guider 510 can be easily pivoted without detaching from the lead nut 400. A high torque can be realized when the valve is closed by the long guider 510. [

Therefore, the yoke arm 500 rotates around the rotation center hole 310 and the through hole 141 while being guided by the lead nut 400 that moves left and right according to the rotation of the lead screw 240 So as to open and close the valve.

It is preferable that a slide bushing is further included in the upper and lower portions of the lead nut 400 fitted in the guider 510 so that the valve opening and closing operation due to the rotation of the yoke arm 50 can be performed more smoothly Do.

Sixth, the limit switch 600 is interlocked with the rotation of the yoke arm 500 as shown in Fig. 2, Figs. 4 to 6 and Figs. 9 to 12, And operates the limit sensor 620 to stop the rotation of the arm 50. The present invention is characterized in that the position of the limit sensor 620 can be finely adjusted.

The limit switch 600 includes a mounting plate 610, a limit sensor 620, an operation cam 630, an adjusting bolt 640, and a fixing spring 650 And will be described in more detail below.

The limit switch 610 of the limit switch 600 is provided with a limit sensor 6200 for stopping the driving of the drive motor 211 according to the opening and closing of the valve. And is seated and placed on a seating protrusion 140 formed on a boundary plate 130 of the body 100 in a state of being fitted to an outer periphery of an upper portion of a yoke arm 500 protruding from the body 120.

The mounting plate 610 is installed independently of the rotation of the yoke arm 500. For this purpose, the mounting plate 610 is formed in a spaced-apart relation between the inner circumference of the mounting plate 610 and the outer circumference of the yoke arm 500, (Not shown).

The limit sensor 620 of the limit switch 600 is operated by the operation cam 630 which is installed in the pair of mounting plates 610 and interlocked with the rotation of the yoke arm 500 The driving motor is stopped to stop the driving of the driving motor, and the limit sensor 620, which is installed in a pair as known in the art, is installed so as to maintain the phase of 90 degrees.

The operation cam 630 of the limit switch 600 is fixedly coupled to the upper portion of the yoke arm 500 protruded through the through hole 141 to the second accommodating portion 120, A limit sensor 620 provided on the mounting plate 610 is disposed on the outer periphery of the mounting plate 610 so as to be in close contact with the upper surface of the mounting plate 610. The limit sensor 620 is installed on the mounting plate 610, A normal projection for operating is constituted.

Fourth, the adjustment bolt 640 is rotated by a rotation of the mounting plate 610 fitted to the outer circumference of the yoke arm 500 about the yoke arm 500, and the limit sensor 620 installed on the mounting plate 610 And is closely attached to one side of the mounting plate 610 in a state of being bolted to the body 100. [

The adjusting bolt 640 may be provided with a adjusting bolt coupling part 131 having a through-hole 131a for communicating the second receiving part 120 with the outer surface on one side of the body 100, The adjusting bolt coupling unit 131 may further include a configuration in which the adjusting bolt coupling unit 131 is protruded to the second accommodating unit 120 so that the adjustment bolt 640 can be engaged from the outside of the body body 100, It is preferable that the mounting plate 610 at a position corresponding to the fixing bolt 610 further includes a tight fitting base 611 to which the adjusting bolt 640 is closely attached.

Therefore, according to the above-described configuration, the adjusting bolt 640 is engaged and fastened outside the body 100, so that the mounting angle of the mounting plate 610 can be easily adjusted without disassembling the product, , The on / off position of the limit sensor 620 can be accurately arranged and adjusted according to the state of the valve and the piping during the field installation.

The fixing spring 650 of the limit switch 600 applies a pulling force to the mounting plate 610 fitted to the outer periphery of the upper portion of the yoke arm 500 to apply tension to the yoke arm 500 and the operating cam 630 One side is connected to the boundary plate 130 of the body 100 and the other side is connected to the mounting plate 610. The mounting plate 610 is fixed to the mounting plate 610 to prevent the mounting plate 610 from moving.

The connection plate 130 is formed with a connecting bolt 133 protruding into the second receiving portion 120. The connecting bolt 133 is provided with a fixing spring 133 650 are coupled to each other and a connection hook 613 is connected to the mounting plate 610 to connect the other end of the fixing spring 650 to the connecting bolt 134.

The mounting plate 610 is received in the direction in which the mounting plate 610 is brought into close contact with the adjusting bolt 640 by the fixing spring 650 so that the mounting plate 610 fitted to the outer circumference of the yoke arm 500 It is possible to prevent the rotation of the limit sensor 620 at an arbitrary angle by the external force, thereby maintaining the accurate on / off position of the limit sensor 620 according to the opening and closing of the valve.

In the meantime, in the body 100 of the present invention, the guide plate 610, in which the installation angle of the installation plate 610 is adjusted by the adjustment bolt 640, is stably provided and the moving range of the installation plate 610 The guiding restricting means 660 includes a guide bolt coupling hole 661, an elongated hole 663, and a guide bolt 665 Which will be described in more detail below.

The guide bolt coupling hole 661 of the guide limiting means 660 is formed on the boundary plate 130 so as to protrude from the second accommodating portion 120 and is configured to engage with the guide bolt 665.

It is preferable that the guide bolt coupling hole 661 is formed at the same height as the seating protrusion 140 formed on the boundary plate 130 of the body 100. This is achieved by adjusting the adjustment bolt 640 So that the mounting plate 610 can be stably supported by being supported by the lower portion.

The elongated hole 663 of the guide restricting means 660 is fixed to the mounting plate 661 corresponding to the guide bolt coupling hole 661 so that the guide bolt 665 bolted to the guide bolt coupling hole 665 is inserted. 610 and guides the guide bolt 665 when the adjustment bolt 640 is adjusted to smoothly guide fine adjustment of the mounting angle of the mounting plate 610. For this purpose, (610).

The guide bolt 665 of the guide limiting means 660 is bolted to the guide bolt coupling hole 661 through the elongated hole 663 formed in the mounting plate 610 as described above, It is possible to guide the smooth movement of the mounting plate 610 by the adjusting bolt 640 and to prevent the mounting plate 610 from being adjusted due to the adjustment of the mounting angle, The head of the adjusting bolt 640 is preferably installed slightly above the mounting plate 610 so that lifting of the adjusting bolt 640 is prevented.

The operation according to the above-described configuration will be described below.

When the drive motor 241 is driven, the worm wheel 220 coupled to the motor shaft 210 rotates and the automatic protrusion 221 formed on the worm wheel 220 is rotated by the automatic disengagement The rotation of the lead screw 240 inserted in the polygonal groove 233 of the automatic decoupler 230 is performed through the interlocking operation of the automatic decelerator 230 as described above.

When the lead screw 240 is rotated, the lead nut 400 screwed to the lead screw 240 is moved in the left and right directions. The yoke arm 500 connected to the lead nut 400 rotates around the through hole 141 and the rotation center hole 310. [

Accordingly, when the operation cam 630 coupled to the upper portion of the yoke arm 500 interlocks with the valve, the protrusion of the operation cam 630 acts to actuate the limit sensor 620 when the valve is fully opened and closed , Whereby the driving of the driving motor 211 is stopped and the valve is kept in a fully opened or fully closed state.

On the other hand, when the position of the limit sensor 620 is shifted according to the state of the valve and the piping, the drive of the drive motor 211 is stopped in the incompletely opened state and the incompletely closed state of the valve to cause malfunction and safety accident. In the invention, fine adjustment of the limit sensor 620 can be achieved by adjusting the fastening of the adjusting bolt 640, so that the advantages can be easily supplemented.

Since the adjusting bolt 640 can be tightened and adjusted outside the body 100, the mounting angle of the mounting plate 610 provided with the limit sensor 620 can be easily adjusted without disassembling the product Off position of the limit sensor 620 in accordance with the state of the worker valve and the piping can be precisely adjusted and arranged so that the guide plate 610 stably guides the installation plate 610 without being lifted by the guide restriction means 660, And the adjusted mounting plate 610 receives a force to be pulled in the direction of the adjusting bolt 640 by the tensile force by the fixing spring 650 so that even if an external force is applied, .

In addition, in the present invention, in addition to the automatic operation of the driving means 200 by the driving motor 211, a manual operation using the handle 260 can be performed. This manual operation is performed by the operator in the direction of pulling the handle 260 It is easy to drive the handle 260 with the force applied.

That is, when the operator applies a force in a direction of pulling the handle 260, the shaft 260 coupled with the handle 260 is pulled, Of the worm wheel 220 is moved horizontally along the polygonal protrusion 241a of the lead screw 240. This automatic disengagement causes the automatic protrusion 221 of the worm wheel 220, The first interlocking projections 231 are separated from each other and the second interlocking projections 232 of the automatic disengaging clutch 230 and the passive projections 272 of the manual disengaging clutch 270 engage with each other, 260 can be manually operated by the driving means 200. [

In addition, after the opening and closing of the valve is completed through the manual operation of the driving means 200 by the operator, the pulling force on the handle can be removed by merely placing the handle 260, The automatic disengagement clutch 230 and the shaft 250 are returned to their initial states. As a result, the automatic operation of the driving means 200 can be carried out immediately. Therefore, even if the operator is not an experienced operator, And safety accidents can be prevented.

The present invention relates to a body 110. The body 110 includes a main body 110, 120, first and second receiving portions 130, a partition plate 131, an adjustment bolt coupling portion 131a, a through screw hole 133, a connection bolt coupling portion 134, a connection bolt 140, 1 Guide groove
The present invention relates to a driving apparatus for an automotive vehicle, which comprises a driving shaft, a driving shaft, a driving shaft, a driving shaft, a driving shaft, a driving shaft, The first and second fitting grooves 265 and 272 are formed in the same manner as the first and second fitting grooves 270 and 272, 273: insertion groove 274: square hole 280: elastic spring 290: connection holder 294: fitting projection 295:
300: base cover 310: rotation center hole 350: second guide groove
400: Lead nut
500: yoke arm 510: guider 550: connecting shaft
The guide bolt is provided with a guide spring for guiding the guide bolt into the guide hole of the guide bolt. The guide bolt is engaged with the guide bolt. volt
1000: Automatic opening / closing valve of Scotch yoke structure

Claims (4)

A first accommodating portion 110 having a lower side opened and a second accommodating portion 120 having an upper side opened with a boundary plate 130 interposed therebetween, And a first guide groove 150 is formed on the lower surface of the boundary plate 130. The first guide groove 150 is formed on the lower surface of the body plate 100, );
A driving means (200) constituting a lead screw (240) rotating in accordance with the driving of the driving motor (211) in the first accommodating portion (110) of the body body (100);
A base cover 300 coupled to a lower portion of the body 100 to cover the first receiving portion 110 and having a second guide groove 350 and a rotation center hole 310 formed on an upper surface thereof;
The first and second guide grooves 150 and 350 are engaged with the first and second guide grooves 150 and 350 while the upper and lower guide grooves 150 and 350 are threadedly engaged with the lead screw 240. When the drive motor 211 is driven, A lead nut 400 which is moved in a lateral direction along the first direction;
And is connected to the lead nut 400 in a state of being fitted in the rotation center hole 310 of the base cover 300 and rotates about the rotation center hole 310 in accordance with the left and right movement of the lead nut 400, A yoke arm 500 constituting a connecting shaft 550 at a lower portion thereof;
A mounting plate 610 that is seated on the seating protrusion 140 formed on the boundary plate 130 of the body 100 while being fitted on the outer periphery of the connecting shaft 550 of the yoke arm 500, A limit sensor 620 installed at both ends of the yoke arm 610 and coupled to the connection shaft 550 of the yoke arm 500 and operable to actuate the limit sensor 620 according to the rotation of the yoke arm 500, And a mounting plate 610 which is tightly fixed to one side of the mounting plate 610 in a state of being bolted to the body body 100 and is seated on the seating protrusion 140 according to tightening, One end of the adjusting bolt 640 is connected to the mounting plate 610 and the other end of the connecting plate 610 is connected to the boundary plate 130 of the body 100 to transmit a tensile force to the mounting plate 610 in the direction of the adjusting bolt 640, And a limit switch 600 constituting a fixing spring 650 for fixing the movement of the mounting plate 610 whose angle of installation is adjusted, Automatically closing valve of the scotch yoke structure.
2. The apparatus of claim 1, wherein the drive means (200)
A motor shaft 210 driven by a drive motor 211;
A worm wheel 220 engaged with the motor shaft 210 and interlocked with the worm wheel 220 to form an automatic protrusion 221;
An automatic decelerator 230 interlocked by the automatic protrusions 221 of the worm wheel 220 and having first and second cooperating protrusions 231 and 232 respectively formed on one side and the other side;
A lead screw 240 which is coupled to the inner periphery of the automatic decoupler 230 and interlocked with the lead screw 240;
A shaft 250 constituting an operating shaft 253 and a connecting hole 251 connected to the automatic clutch release 230;
A handle 260 coupled to a pin 261 at an end of an operating shaft 253 of the shaft 250;
A manual projection 272 engaging with the second cooperating projection 232 of the automatic disengaging clutch 230 is formed on one side of the operation shaft 253 formed on the shaft 250, A manual disengagement clutch 270 which forms an insertion groove 273 into which the spring 280 is inserted and separates the second interlocking projection 232 and the passive projection 272 by the elastic force of the elastic spring 280;
And a connection holder 290 formed between the handle 260 and the manual decoupler 270 and transmitting the driving force of the handle 260 to the manual decoupler 270,
The handle 260 is pushed in the direction of the shaft 250 to engage the second protrusions 232 of the automatic clutch release 230 and the passive protrusions 272 of the manual clutch release 270, ), Which is characterized by being able to perform manual operation using a scotch yoke structure.
And a second receiving part (120) formed on one side of the body body (100) with an adjusting bolt coupling hole (131) having a through hole (131a) for communicating the second receiving part (120) And the adjustment bolt 640 is engaged from the outside of the body 100,
The mounting plate 610 at a position corresponding to the adjusting bolt coupling hole 131 further includes an attachment base 611 to which the adjusting bolt 640 is closely attached,
Wherein an adjusting angle of the mounting plate (610) can be adjusted by adjusting bolts (640) fastened from the outside of the body body (100).
The apparatus according to claim 1, wherein the body body (100) is provided with guide restricting means (660) for restricting the guide of the mounting plate (610) whose mounting angle is adjusted by the adjusting bolt (640) ), Wherein the opening / closing valve of the scooter yoke structure is further provided.
KR1020150114974A 2015-08-14 2015-08-14 The automatic on-off valve with a scotch yoke structure KR101607840B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150114974A KR101607840B1 (en) 2015-08-14 2015-08-14 The automatic on-off valve with a scotch yoke structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150114974A KR101607840B1 (en) 2015-08-14 2015-08-14 The automatic on-off valve with a scotch yoke structure

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102122062B1 (en) * 2019-05-08 2020-06-11 주식회사 제이디 Valve switching device with alarm function added and motor operated valve system which this is equipped with
KR20220007211A (en) 2020-07-10 2022-01-18 주식회사 인테로 Scotch yoke device with dual type guide bar

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001056067A (en) 1999-08-17 2001-02-27 Kurimoto Ltd Deceleration opening and closing device for rotary valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001056067A (en) 1999-08-17 2001-02-27 Kurimoto Ltd Deceleration opening and closing device for rotary valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102122062B1 (en) * 2019-05-08 2020-06-11 주식회사 제이디 Valve switching device with alarm function added and motor operated valve system which this is equipped with
KR20220007211A (en) 2020-07-10 2022-01-18 주식회사 인테로 Scotch yoke device with dual type guide bar

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