KR101414032B1

KR101414032B1 - Actuator equipped with waterproof switch

Info

Publication number: KR101414032B1
Application number: KR1020140010698A
Authority: KR
Inventors: 조재찬
Original assignee: (주)에너토크
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-07-02

Abstract

The present invention relates to an actuator comprising a non-penetrating waterproof switch having a locking lever, which assures waterproof property by constituting an installation part of a non-penetrating first cover constituting an integral unit of the actuator especially and being combined to a housing as a non-penetrating type, and also improves safety by introducing a separate locking lever in order to prevent a dial of the first waterproof switch selecting remote operation and field operation from being rotated randomly. According to the actuator comprising a non-penetrating waterproof switch having a locking lever, in a control panel comprised in an installation part of the first cover and a mounting part of a second cover, the first waterproof switch is constituted with a dial mounted in the second cover through a rotation axis in order for a magnet to move to a first, a second and a third sensing position for selecting remote operation, OFF or field operation. A second waterproof switch comprises a first and a second button for opening and closing having a hooking chin hooked to a hooking part of a second mounting part of the second cover and a magnet in an inner end, and a spring helping return of each button. A fourth mounting part of the second cover further includes a locking lever which is installed through a swing axis, and prevents an externally exposed handle and a dial of the first waterproof switch from being rotated randomly, and has a locking cam connected to the handle.

Description

TECHNICAL FIELD [0001] The present invention relates to an actuator having a non-through type waterproof switch having a locking lever,

The present invention relates to an actuator having a non-through type waterproof switch,

More particularly, a magnet of a waterproof switch of a control panel provided on a mounting portion of a non-through type first cover and a mounting portion of a second cover constituting an integral unit, particularly an integral unit, By approaching the magnetic force sensor provided on the built-in control board, it is possible to control the opening and closing of the valve and to select the remote operation or the field operation,

And a non-through type waterproof switch having a locking lever that improves the safety by introducing a separate locking lever so that the dial of the first waterproof switch for selecting the remote operation and the field operation is not arbitrarily rotated.

For convenience in various fields, the incentive management system is transformed into an unmanned integrated operation and management system. In the valve-related part for controlling fluid flow, automatic valves and various automatic flow control devices that can be controlled remotely are widely used Is rapidly increasing.

The electric actuator used in such an automatic flow control device is a driving device that is essential for automating a valve and a control damper, and is composed of a control part, an associated gear device, and a motor.

As a prior art related to such an electric actuator, there is a "valve having a variable torque control function ", Korean Patent Registration No. 10-1130813 (2012.03.20.),

In this patent, a flange is formed on both sides of the flange. The valve body is internally hollow so that the conveyed object can be conveyed. The through hole is rotatably installed in the valve body. The through hole is formed to control the flow of the conveyed object. A ball seat for supporting the outer side surface of the ball, and a sleeve-shaped seat ring for preventing the ball seat from being separated from the lower shaft, Tightly holding the ball seat misalignment ring against the ball in a conveyed-article conveying direction so as to prevent leakage of the conveyance water caused by abrasion of the ball and the ball seat; A bonnet mounted on the upper opening and rotatably supporting the upper shaft, a bonnet for supporting the upper shaft in a rotatable manner, and a valve for opening and closing the ball when the ball is inflated by high- A ball holder for raising and lowering the ball to a height of 3.0 to 5.0 mm by means of the elevating means so as to prevent leakage of the conveyed material due to abrasion of the ball and the ball sheet, a gap between the upper shaft and the bonnet, An airtight member which is mounted in a gap between the shaft receiving portion and the lower shaft rotatably supporting each other, an inner peripheral edge of the through hole, the ball seat and the seat ring which are in contact with the conveyed object, and a sliding portion of the ball and upper and lower shafts To a valve having a variable torque regulation function with a spray coating layer formed to a thickness of ~ 2.0 mm.

This patent does not provide an appropriate solution to the adverse effects that the change in the fluid condition (flow rate, pressure, etc.) in the pipeline may affect the equipment, since the control is performed only at a predetermined speed during initial design or setting.

As a conventional technique for solving the above problems, there is a " torque limiter for controlling a valve actuator ", Korean Patent Registration No. 10-0880026 (Jan. 15, 2009)

This patent discloses a torque arm that is connected to a shaft and a hinge shaft provided on a torque arm assembly and has a torque arm provided with a working projection as a part and a spring cover provided on a part of the working projection, And the spring lower pressure plate is fixed by the cover fixing screw at the torque limiter support and the spring upper pressure plate, the open torque spring and the spring lower pressure plate are fixed to the inside of the spring cover opposed to the spring cover by the rubber fixing screw at the torque limiter support And an intermittent switch is provided on both the limiter and the torque limiter support to connect the switch operation shaft to the operation protruding portion.

In addition, since the above-mentioned registered patent uses a spring-type torque limiter, it is impossible to precisely measure the amount of pressure displacement applied to the electric motor and precisely measure it, so that it is not possible to precisely control the electric motor. There is a problem.

In order to solve the problems of the prior art, the applicant of the present invention has proposed a method of controlling the operation of the actuator by means of an actuator having a non-through type waterproof switch (Patent Registration No. 10-0870439

A mediator rod for transmitting a pressure change generated in the longitudinal direction while rotating together with a rotary shaft of an electric motor so as to simplify the structure design and to reduce the manufacturing cost and simplify the manufacturing cost compared with the actuator using the conventional coil spring type or disk spring type And a control unit configured to control the opening and closing state of the valve by adjusting a rotational speed and a torque of the electric motor on the basis of a pressure value provided by the load cell, Of the torque control system.

The present invention intends to provide an actuator having a non-through type waterproof switch in which the safety is further improved by further improving the above-mentioned Patent Registration No. 10-0870439.

Accordingly, the present invention provides an integral unit of an actuator, in particular, an integral unit, an installation portion of a non-through type first cover to be coupled with a housing, and a magnet of a waterproof switch of a control panel provided on a mounting portion of the second cover, As it is close to the magnetic sensor provided on the built-in control board, it can control the opening and closing of the valve and select the remote operation or on-site operation so as to guarantee the waterproof property, And an object of the present invention is to provide an actuator including a non-through type waterproof switch having a locking lever that improves safety by introducing a separate locking lever so that the dial of the first waterproof switch is not arbitrarily rotated.

In addition, according to the present invention, the dial of the first waterproof switch for selecting remote operation or on-site operation has a U-shaped leaf spring so as to be engaged with the multi-step stop groove formed in the second cover, An actuator provided with a non-through type waterproof switch which is eccentric in the swinging axis and is engaged with the rising end of the stopping projection of the leaf spring in the locking operation so as to prevent the dial from turning in a specific direction, The purpose is to provide.

Further, according to the present invention, when the dial is rotated to select the remote operation in the locked state in which the locking cam of the locking lever is engaged with the locking groove of the leaf spring of the first waterproof switch, the locking cam is lifted without operation of the locking lever, Through waterproof switch capable of satisfying both safety and convenience at the same time.

It is another object of the present invention to provide an actuator including a non-through type waterproof switch in which an automatic delay return means is incorporated in a dial of a first waterproof switch in order to return the dial to a remote operation position after a reference time at a field operation position .

According to an aspect of the present invention, there is provided an actuator including a non-through type waterproof switch having a locking lever,

An actuator for pivotally opening and closing a valve through built-in gears for decelerating and turning a rotational motion of a motor,

An integral unit for controlling the opening and closing of the valve by controlling the forward and reverse rotation and the degree of rotation of the motor,

A housing having a transformer and a magnet contactor;

A non-through first cover provided at the front of the housing and having non-penetrating recess type first and second mounting portions and a through type third mounting portion;

A second cover coupled to the outside of the first cover and having through-type first through third mounting portions corresponding to the first through third mounting portions and a fourth mounting portion;

A control board disposed inside the first cover and having a plurality of magnetic force sensors provided at positions corresponding to the first and second mounting portions; And

A control panel having first and second mounting portions and first and second waterproof switches arranged at positions corresponding to the first and second mounting portions, respectively having magnets, and a light-transmitting indicator cap watertightly mounted on the third mounting portion;

, &Lt; / RTI >

In the control panel

The first waterproof switch is composed of a dial mounted on the second cover through a rotary shaft so that the magnet is moved to the first to third sensing positions for remote operation, OFF, or on-site operation selection,

The second waterproof switch comprises a first and a second button for opening and closing which has a hooking portion for hooking the hooking portion of the second mounting portion of the second cover and has a magnet at the inner end thereof and a spring for helping return of each button,

A fourth mounting portion of the second cover is provided with a swinging shaft and includes an external exposure handle and a locking lever having a locking cam interlocked with the handle to prevent any rotation of the dial of the first water-

And further comprising:

In the actuator having the non-through type waterproof switch according to the present invention

The first waterproof switch in the control panel includes first to third stop grooves formed in the second cover so as to correspond to the first to third sensing positions, Wherein the locking cam of the locking lever is engaged with the rising end of the locking protrusion of the leaf spring when the locking lever is locked,

The plate spring of the first waterproof switch has a locking groove formed on the opposite side of the stopping projection. When the dial is left rotated in a state where the locking cam of the locking lever is engaged with the locking groove, the locking cam is lifted to be in the unlocked state, The locking cam is caught by the rising end of the stopping projection to maintain the locked state,

Preferably, the dial of the first waterproof switch is provided with an automatic delay return means, and the dial is returned to the remote operation position after the reference time at the field operation position.

The actuator having the non-penetrating type waterproof switch according to the present invention includes a non-through type first cover mounting portion constituting an integral unit and being coupled with the housing, Of the waterproof switch is close to the magnetic sensor provided on the control board separated from the housing to control the opening and closing of the valve and to select the remote operation or the field operation so as to ensure the waterproof property Of course, a separate locking lever can be introduced to prevent the dial of the first waterproof switch, which selects the remote operation and the field operation, from being arbitrarily rotated to improve safety, and the dial of the first waterproof switch Shaped U-shaped leaf spring so as to be engaged with the multi-step stop groove formed in the second cover so as to allow a stepwise stop, Since the locking cam is eccentric on the swing shaft, the locking is made by preventing the dial from being pivoted in a specific direction by being caught by the rising end of the locking protrusion of the leaf spring during the locking operation, thereby improving the convenience. Further, When the dial is rotated to select the remote operation in the locked state in which the locking cam of the locking lever is engaged with the locking groove of the leaf spring, the locking cam is lifted without lifting the locking lever to ensure the unlocking state. And the automatic delay returning means is introduced into the dial of the first waterproof switch, so that the dial is returned to the remote operation position after the reference time at the field operation position, and the convenience and safety can be perfected.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side cross-sectional view of an integral unit forming the core of an actuator according to the present invention. FIG.
2 is a front view and a side sectional view of a control panel and a cover corresponding to recesses of an integral unit in an actuator according to the present invention;
3 is an enlarged side sectional view of each waterproof switch;
Fig. 4 is a photograph showing a control panel and a cover corresponding to a substantial part of an integral unit; Fig.
Figure 5 relates to a variant of the first watertight switch for selecting remote operation or field operation.
Fig. 6 is a diagram related to a modification to the second waterproof switch for selecting opening and closing of the valve and opening degree. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. 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.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, some of the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of convenience of understanding, or simplified representation thereof, It should not be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or 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 are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be noted that the first to second to third to fourth to described in the present specification are to be referred to in order to distinguish the different components from one another, May not coincide with the names in the detailed description and claims.

1, an integral unit A0, which is a substantial part of an actuator A having a non-through type waterproof switch according to the present invention, operates the forward and backward rotation and the degree of rotation of the motor, Opening / closing and opening degree,

In addition to the integral unit, the actuator includes a motor and internal gears for decelerating and turning the rotation of the motor, and power transmission. When the manual opening and closing of the valve is not required by the motor in the power transmission unit, A handle for manually operating the switch, and an instrument panel for displaying the degree of opening and closing of the valve,

The specific construction of the actuator is well known and the main additional explanation will be omitted for the sake of simplicity. Some applicants of the present invention can refer to the patent registration No. 10-0870439 (November 19, 2008) "Actuator with non-penetrating waterproof switch" have.

1 and 2, the integral unit A0 includes a housing Ah, a first cover 10, a second cover 20, first and second waterproof switches A control panel CP arranged at a mounting portion of the first cover and a mounting portion of the second cover,

And, one of the core of the present invention is to include a locking lever 50 for preventing the situation where the dial of the first waterproof switch for remote operation, OFF, .

The housing Ah includes a control board A1 on which a magnetic force sensor (not shown) for sensing approach of a magnet provided on a non-penetrating waterproof switch, which is one of the core of the present invention, is mounted, A transparent indicator cap Ac is provided on the front surface of the second cover 20 to provide information on the opening and closing of the valve and the opening degree of the valve and a transformer A3 and a magnet contactor A4. .

FIG. 2 is a cross-sectional side view of the integral unit A0, FIG. 2 is a front view, FIG. 2 is a cross-sectional side view of the control panel and cover, As can be seen in Figure 4,

The first cover 10 is coupled to the opening of the housing Ah with the waterproof packing interposed therebetween,

Penetrating recess type first and second mounting portions 11A and 11B for the non-through type waterproof switch of the control panel CP and a through type third and fourth mounting portions 11A and 11B for installing the light transmitting (particularly transparent) And a mounting portion 11C (see Figs. 2B and 4D).

The first cover 10 can be manufactured using a metal or synthetic resin molded by a technique such as die casting or the like so that the magnet of the waterproof switch interferes with the sensitivity to ensure the sensing when the magnet is close to the magnetic sensor of the control board Shape, and thickness, which do not have a desired shape.

The second cover 20 is made of a synthetic resin or a metal material and is coupled to the outside of the first cover 10 and is provided with first through third through holes corresponding to the first through third mounting portions 11A, Second mounting portions 21A, 21B and 21C and a fourth mounting portion 21D for mounting the locking lever 50 (see Figs. 2A and 4B).

4A is a sectional view of a control panel including the first and second covers 10 and 20 excluding the indicator cap Ac and the first and second waterproof switches 30 and 40 and the locking lever 50. [ (CP). Fig.

4 (B) is an enlarged view of a portion of the locking lever 50,

4C is a rear view of the coupled state of the second cover 20 and the control panel CP,

4 [D] is a photograph of the first cover 10.

3, which is a side cross-sectional view of each recess of Fig. 2 (A), Fig. 3 [A] shows a first waterproofing switch 30, Fig. 3 [B] shows a second waterproofing switch 40 40B)

3 [C] is an alphabet 'U' character-like shape (actually '

Shaped stop groove 33 of the second cover 20 is formed, and the leaf spring 35 of the second cover 20 has a shape of 'U-shape' for convenience 'sake, Is a perspective joining state diagram of the block B33.

The first and second waterproof switches 30 and 40 of the control panel CP are arranged at positions corresponding to the respective magnetic force sensors of the control board A1 and the first and second mounting portions 11A and 11B And the first and second mounting portions 21A and 21B are also arranged at corresponding positions.

The through-type third mounting portion 21C of the second cover 20 for ensuring the exposure of the indicator cap Ac is simply attached to the outer surface of the annular projection constituting the through-type third mounting portion 11C of the first cover 10 And is in the form of fitting,

The indicator cap Ac is engaged with the inner surface of the third mounting portion 11C with the packing ring interposed therebetween and is fixed to the inside of the first cover by a snap ring (not shown) ] Reference).

In a control panel (CP) having a locking lever (50) which is one of the core of the present invention

The first waterproof switch 30 is composed of a dial 31,

These dials are connected to the first to third sensing positions for selection of remote operation, OFF, or on-site operation (indicated by 'REM', 'OFF', 'LOC' Is fixed to the first mounting portion 21A of the second cover 20 via the rotation shaft 31s so that the magnet 31m (see Figs. 3 (A) and 4 (C)) is moved.

As shown in FIG. 2A, the second waterproof switch 40 is composed of first to fourth buttons 40A, 40B, 40C and 40D. The second waterproof switch 40 is a valve for opening the valve, closing the valve, Stop, and maintenance, it takes charge of the reset operation for returning to the initial setting state.

As shown in Figs. 3B and 4A and 4C, each of the buttons 40A, 40B, 40C and 40D includes a button body 41 having a magnet 41m, A spring 41s for restoring the control board A1 of the magnet by the pressing operation after the proximity of the magnetic force sensor, and a waterproof cap 41c for protection of the button body and identification and development of buttons by different colors.

The first to third mounting portions 11A, 11B, and 11C of the mounting portion 11 of the first cover 10,

Of the first to fourth mounting portions 21A, 21B, 21C, 21D of the mounting portion 21 of the second cover 20,

The second mounting portion 11B of the non-through-hole circular recess type of the first cover and the through-hole second mounting portion 21B of the second cover

Each of the button body 41 and the waterproof cap 41c of the second waterproof switch 40 is configured such that the engagement protrusions 41a and 41b corresponding to the outwardly projecting flange are engaged with the through- (Refer to Fig. 3 [B]),

When the first cover 10 is coupled with the second cover 20 and the control panel CP as shown in FIG. 4 [C]

One end of the spring 41s is in contact with the second mounting portion 11B of the first cover and the other end of the spring is embedded in the cap type button body 41 and contacts the upper surface of the button body

The engagement protrusion 41a of the button body 41 is brought into close contact with the engagement protrusion 41b of the waterproof cap 41c by the elasticity of the spring 41s

The engagement protrusion 41b of the waterproof cap is in close contact with the second engagement portion 21a of the second cover

The firmness of the assembled state is maintained.

On the other hand, in the first waterproof switch 30, the rotary shaft 31s coupled to the dial 31 passes through the stop block B33 and the end of the rotary shaft is fixed to the second cover 20 by a snap ring (not shown) (See Fig. 3 (A)).

The dial 31 has an alphabetical " U " shape,

(See Fig. 3 [C]) to which the lower engaging portion 35u of the leaf spring 35 of the '

The stopper protrusion 35a which is the both end bent portion of the leaf spring 35 is inserted into the stop groove 33 of the stop block B33 formed in the first mounting portion 21A of the second cover 30, The first to third stop grooves 33a, 33b, 33c for remote operation, OFF,

And is engaged and stopped step by step as the dial 31 turns.

The first waterproof switch 30 dial 31 has a protrusion for introducing the magnet 31m at a portion spaced apart from the rotation axis 31s (see FIGS. 4C and 3 A)

Since the magnet 31m mounted on the projection end moves in an arc motion according to the dial pivoting, the first installation portion 11A of the non-penetrating recess type of the first cover 10 also has an arc shape (See Fig. 4 [D]).

The locking lever 50, which is one of the core of the present invention, is mounted on the fourth mounting portion 21D of the mounting portion 21 of the second cover 20,

2 (A) and 3 (C). As can be seen from Fig. 4 [C]

Is located next to the right second stop groove 33b for stopping the OFF position of the second cover, in particular, the dial 31 on the right side of the stop block B33 through the swing shaft 51s.

The locking lever 50 has a handle 51 exposed on the right side of the second cover and a locking cam 53 protrudingly arranged at a position eccentric from the swing shaft 51s,
To this end, the fourth mounting portion 21D has a through-hole structure in which the locking cam 53 is arranged adjacent to and connected to the first mounting portion 21A so as to overlap with the dial 31 of the first waterproof switch 30, And is arranged adjacent to the right second stop groove 33b of the stop block B33.

The locking lever 50 serves to prevent the dial 31 of the first waterproof switch 30 from being rotated arbitrarily.

More specifically,

Shaped leaf spring 35 is projected so that the stopping protrusion 35a at the end portion is caught by the stopping groove 33 of the stop block B33

And the opposite side thereof is recessed to form a lock groove 35b, and both ends of the leaf spring 35 constitute a rising end portion 35c.

If the handle 51 of the locking lever 50 is opened and set to the 'LOCK' position when the dial 31 is in the OFF position, the locking cam 53 of the locking lever 50 Is engaged with the lock groove 35b of the leaf spring 35 to be locked.

If the user wishes to switch the dial 31 of the first waterproof switch 30 to the 'on-site operation (LOC') 'state in this locked state

The rising end 35c of the leaf spring 35 coupled to the dial 31 presses the locking cam 53 of the locking lever which is eccentric on the swinging shaft 51s

The locking cam is hooked on the rising end of the stopping projection of the leaf spring

The handle 51 of the locking lever 50 is restrained by the fourth mounting portion 21D of the second cover and can not rise any further

It can not be turned around the swing shaft 51s and can not be switched to the 'field operation' state arbitrarily.

However, when the dial 31 is turned to the left to switch to the remote operation (" REM ") state

The portion of the lock groove 35b on the opposite side of the rising end 35c of the leaf spring 35 is urged in the direction of lifting the locking cam 53 of the locking lever

As a result, the handle 51 descends due to the seesaw motion caused by the rising of the locking cam,

At this time, since the fourth mounting portion 21D of the second cover has a clearance (that is, clearance) that can be lowered from the raised state ('LOCK') of the handle 51, the handle descends to be unlocked And is switched without operation.

Further, when the dial 31 is in the remote operation (" REM ") state, the handle 51 is raised by the operation of the locking lever 50 and the locking cam 53 is lowered to be locked

If the dial 31 is turned to the 'OFF' state or the 'LOC' state

The straight line portions 35s of the leaf spring 35 (the straight line portions not orthogonal to the lower engaging portion 35u of the leaf spring are engaged with the stop groove 33 of the stop block B33 in an opened state for elasticity) (The locking protrusion 35a is formed at the end of each straight portion 35s) presses the locking cam 53 of the locking lever

Since the handle 51 of the locking lever is also restrained by the fourth mounting portion 21D of the second cover,

When the dial is turned to the left again, the locking cam can be lifted to the unlocked state.

Further, an additional lock groove 35d is further formed on the right side straight portion 35s like the deformed leaf spring 35m shown in the right lower portion of FIG. 3 to prevent the locking lever 50 It is desirable to more reliably prevent the occurrence of any release state of the 'remote operation (' REM ') state by configuring the locking cam 53 to be more firmly engaged.

The unlocking state change due to the lifting of the locking cam due to the left rotation of the dial is naturally achieved even in the case of introducing the leaf spring with the additional lock groove 35d.

When the dial is turned to the left in a state where the locking cam of the locking lever is engaged with the locking groove, the locking cam is lifted to be in the unlocked state,

When the dial is turned to the right, the locking cam is moved to the raised end portion 35c of the stopping projection 35a of the leaf spring 35

The upper rising portion of the straight portion 35s or the rising portion of the additional locking groove 35d

(The two leaf springs 35 and 35m make a straight line 35s with respect to the lower engaging portion 35u in the locked state against the remote operation ('REM') state of the dial, So that it is engaged with the locking cam 53 of the locking lever to perform a locking function similar to that of the rising end portion), so that the locking state is maintained.

Next, with reference to FIG. 5, a modification to the first waterproof switch for selecting the remote operation or the field operation, that is, the automatic delay return means will be described.

The automatic delay return means 37C introduced to the dial 31M of the deformed first waterproof switch is for automatically switching from the 'LOC' state to the 'REM' state It can contribute to safety improvement.

The automatic delay return means 37C includes a manual winding 37b coupled around the rotational axis 31S of the dial 31M to rotate the dial 31M.

As shown in [B] and [C] of FIG. 5, when the 'LOC' state is selected, the dial 31M rotates the body in one direction to select a mode, ('ROC') state is selected for a reference time (for example, 1 minute) after the dial is rotated by the rotation of the dial, and the actuator is automatically returned to the 'REM' Quot; state. &Lt; / RTI >

For convenience of explanation, the spring 37b is enlarged and exaggerated in [B] and [C] of Fig.

As shown in [D] of Fig. 5, as the automatic delay returning means 37C of the dial 31M, the protrusion 37c is provided in the lower part of the body of the dial 31M, And a latching groove 35f into which the protrusion protrusion 37c is inserted at the side of the shaft portion 21s of the first mounting portion 21A for rotating the body when the 'LOC' The protruding protrusion 37c is inserted into the latching groove 35f so as to be inserted into the LOC so as to be inserted into the latch groove 35f, ')' State selection may be fixed.

If the 'LOC' state is maintained for a long time, the actuator is configured not to automatically switch to the 'REM' state, so that it is not only the first reference time (eg, 1 minute) After the elapse of the second reference time (e.g., 10 minutes), the first reference time (e.g., 1 minute) due to the manual winding 37b may be changed to the 'remote operation (REM) have.

That is, a second coil spring 37d, which exerts an elastic force in the outward direction of the first mounting portion 21A, is interposed around the rotary shaft 31S of the dial 31M, and after an additional second reference time (for example, 10 minutes) The protrusion protrusion 37c of the body 35A is released from the engagement groove 35f and is restored to its original shape and then automatically returned after the first first reference time (for example, one minute) by the spring 37b, The operation can be configured to be remotely controlled.

On the other hand, as shown in FIG. 6, it is possible to introduce a second waterproof switch 41M configured as a dial type instead of a button type as a modified example.

In this case, when the dial type second waterproof switch 41M is rotated for opening or closing the valve, respective magnetic force sensors for proximity sensing of the magnet for opening or closing are provided on the control board, The second waterproof switch is preferably provided with return means such as a torsion coil spring so that it is automatically returned to the original position so that the magnetic force sensor and the magnet are spaced apart from each other after the opening and closing operation.

In order to ensure a careful selection of the valve opening / closing control operation, the safety delay means 46C is introduced into the second waterproof switch 41M to prevent unintended operation of the valve.

6, the safety delay means 46C of the deformed second waterproof switch 41M is provided with a restricting projection 46b protruding from the outer peripheral surface of the shaft pin 41S of the deformed second waterproof switch 41M, And a guide groove 45c formed in the inner side surface of the shaft portion 21b of the second mounting portion 21B for the waterproof switch 41M so as to pull out the deformed second waterproof switch 41M in the outward direction, 46b may be released from the guide groove 45c and rotated.

At this time, the restraining protrusion 46b is inserted into the shaft pin 41S of the deformed second waterproof switch 41M and is coupled with the ball bearing 46b. The restraining protrusion 46b is disposed inside the ball bearing 46b and exerts an elastic force in the outward direction And a first coil spring 46c.

At this time, the ball bearing 46b is not completely inserted into the shaft pin 41S of the second waterproof switch 41M even if the inner direction pressing is performed, and the ball bearing 46b is not separated from the guide groove 45c Thereby preventing rotation of the second waterproof switch 41M.

When the body of the second waterproof switch 41M is pulled out, the ball bearing 46b is separated from the guide groove 45c and partially protruded outward. Then, when the body is rotated, a bearing function .

On the other hand, as shown in the partial enlarged view of the second mounting portion 21B shown in the lower side of [B] in Fig. 6, the second mounting portion 21B for the deformed second waterproof switch 41M The side surface of the guide groove 45c is connected to an upper end of the guide groove 45c and includes a sloped surface 45d inclined upwardly and a horizontal surface 45e is formed at an end of the sloped surface 45d.

Therefore, when the body of the deformed second waterproof switch 41M is pulled and then rotated in one direction (one direction of opening / closing of the valve), the ball bearing 46b ascends on the inclined surface 45d,

At this time, when the worker holds the second waterproof switch 41M for a predetermined time while holding the waterproof switch 41M on the inclined surface 45d and the horizontal surface 45e, the magnet for opening and closing the second waterproof switch 41M, An operation by proximity sensing of the magnetic force sensor is performed.

At this time, when the valve opening and closing operation is required for a long time, if the user continues to rotate the body of the second waterproof switch 41M past the opening / closing selection position, the ball bearing 46b is supported and supported by the horizontal surface 45e, The operation of the valve is maintained even if the switch 41M is temporarily fixed and the user releases his / her hand from the second waterproof switch 41M.

Although not shown in the drawing, a connecting portion between the inclined surface 45d and the horizontal surface 45e is provided with a step portion (not shown) having a different inclination angle so that when the ball bearing 46b is positioned at the step portion, The user is aware of this, and in this state, the second waterproof switch 41M is continuously held to open and close the valve.

When the user continues to press the second waterproof switch 41M after recognizing that the ball bearing 46b has been resiliently pressed, the second waterproof switch 41M is supported by the horizontal surface 45e through the stepped portion due to the elastic force of the ball bearing 46b, The valve will continue to operate.

When the operation of the valve is stopped, the user rotates the second waterproof switch 41M toward the return direction or is automatically rotated by return means such as a torsion coil spring

The inclined surface 45d inclined downward toward the guide groove 45c and the rotational return of the second waterproof switch 41M are performed so that the ball bearing 46b reaches the inclined surface 45d again beyond the step portion, The second waterproof switch 41M is automatically returned by the elastic force of the elastic body 46D that exerts an elastic force in the downward direction and the ball bearing 46b is guided and inserted into the guide groove 45c.

A: Actuator A0: Integral unit
Ah: housing A1: control board
Ac: Indicator cap
10: first cover 11, 11A, 11B, 11C:
20: second cover 21, 21A, 21B, 21C, 21D:
CP: Control panel 30: First waterproof switch
31: Dial 31m: Magnet
33, 33a, 33b, 33c: stop groove 35: leaf spring
35a: stop projection 35b: lock groove
40: second waterproof switch 40A, 40B, 40C, 40D: button
41: Body 41m: Magnet
50: locking lever 51: handle
51s: Swing shaft 53: Locking cam

Claims

An actuator (A) for swingably opening and closing a valve through built-in gears for decelerating and turning a rotational motion of a motor,
An integral unit for controlling the opening and closing of the valve by controlling the forward and reverse rotation and the degree of rotation of the motor,
A housing (Ah) with a transformer and a magnet contactor incorporated therein;
A non-through first cover 10 provided at the front of the housing Ah and having non-penetrating recess type first and second mounting portions 11A and 11B and a through type third mounting portion 11C;
The first through third mounting portions 21A, 21B and 21C corresponding to the first to third mounting portions 11A, 11B and 11C and the fourth mounting portions 21D A second cover (20) having a first end (20);
A control board A1 arranged inside the first cover 10 and having a plurality of magnetic force sensors provided at positions corresponding to the first and second mounting portions 11A, 11B and 11C; And
First and second waterproof switches 30 and 40 arranged at positions corresponding to the first and second mounting portions 11A and 11B and the first and second mounting portions 21A and 21B and having magnets respectively, A control panel CP having a light-transmitting indicator cap Ac, which is watertightly mounted to the third mounting portion 11C;
, &Lt; / RTI >

In the control panel (CP)
The first waterproof switch 30 is a dial mounted on the second cover 20 via the rotation shaft 31s so that the magnet is moved to the first to third sensing positions for remote operation, (31)
The second waterproof switch 40 is provided with an engagement protrusion 41a that engages with the engagement portion 21a of the second attachment portion 21B of the second cover 20 and has an opening and closing member 1 and second buttons 40A and 40B, and a spring 41s for helping return of each button,
The fourth mounting portion 21D of the second cover 20 is provided with a swing shaft 51s to prevent the external exposure handle 51 and the dial 31 of the first waterproof switch 30 from being rotated arbitrarily. And a locking lever (50) having a locking cam (53) interconnected with the handle,
The fourth mounting portion 21D is adjacent to and connected to the first mounting portion 21A such that the locking cam 53 overlaps the dial 31 of the first waterproof switch 30,

33b, 33c formed in the first mounting portion 21A of the second cover 20 so as to correspond to the first to third sensing positions of the first waterproof switch 30 and having the first to third stop grooves 33a, Further comprising a stop block B33,
The first waterproof switch 30 has a U-shaped leaf spring 35 which moves in accordance with the rotation of the dial 31 and has stopping protrusions 35a which are coupled to the respective stopping grooves at both ends thereof,
Wherein the locking cam (53) of the locking lever (50) is engaged with the rising end (35c) of the stopping projection (35a) of the leaf spring when locked.

The method according to claim 1,
The plate spring 35 of the first waterproof switch 30 has a lock groove 35b formed on the opposite side of the stop projection 35a,
When the dial 31 is turned to the left with the locking cam 53 of the locking lever 50 engaged with the locking groove 35b, the locking cam 53 is lifted to be in the unlocked state,
When the dial 31 is turned to the right, the locking cam 53 is caught by the rising end 35c of the stopping projection 35a and the locked state is maintained.

3. The method of claim 2,
The dial 31 of the first waterproof switch 30 has a fixed slit 31a,
The leaf spring 35m includes a lower engaging portion 35u coupled to the fixed slit 31a, a straight portion 35s connected to both sides of the engaging portion, a stopping projection 35a at the end of each straight portion, The linear portion 35s has an additional locking groove 35d,
And the locking cam (53) is coupled to the additional locking groove (35d) when the locking lever (50) is locked.

The method according to claim 2 or 3,
There is provided an automatic delay return means 37C which is coupled to the dial 31M of the first waterproof switch 30 around the rotation axis 31S to include a manual winding 37b for rotating the dial 31M, And the dial is returned to the remote operation position after the reference time at the position.