KR20190104891A - Drain valve driving device - Google Patents

Abstract

A drain valve driving device can help reduce manufacturing costs. In the drain valve driving device of the present invention, the driving force of a driving source is transmitted to a valve core through a clutch wheel and an electric wheel of an output clutch device, a rotation output member, and a pulling member. An interlock braking device and a switching position limiting device control the output clutch device such that the driving force of the driving source is no longer transmitted to the valve core after the valve core is displaced from the initial position to the operating position, and also maintains the valve core, the pulling member, and the rotation output member in a state in which the valve core is in the operating position. The switching position limiting device includes a switching position limiting lever rotating along the rotation output member, and a force applying member applying a force for separating the electric wheel from the clutch wheel. The switch position limiting lever has a switching unit and a position limiting unit in integral form. The switching unit connects the electric wheel to the clutch wheel when the valve core is in the initial position, and displaces the electric wheel to a position separated from the clutch wheel when the valve core is displaced to the operating position. The position limiting unit restricts the reverse rotation of the electric wheel when the valve core is displaced to the operating position.

Description

Drain valve drive device {DRAIN VALVE DRIVING DEVICE}

The present invention relates to a drain valve drive device.

Patent Document 1 discloses a drain valve driving apparatus including a valve core, a pulling member, a traction member, a rotation driving member, an output clutch mechanism, an interlock braking mechanism, and a drain valve control motor as main members, among which, a drain valve control The driving force output from the motor is transmitted to the valve core through the rotary driving member, the output clutch mechanism, the traction member and the pulling member, and the valve core is driven from the initial position to the operating position and displaced, and then the interlocking brake mechanism and the output clutch Through the operation of the mechanism, the driving force of the drive source is no longer transmitted to the valve core, and the valve core, the pulling member and the rotation output member are maintained in the state when the valve core is in the operating position.

However, in the drain valve driving apparatus, after the valve core is driven from the initial position to the operating position and displaced, the driving force of the driving source is no longer transmitted to the valve core, and the valve core, the pulling member and the traction member are further replaced by the valve core. Is held in the operating position, the clutch clutch plate, the clutch wheel plate, the clutch anti-rotation wheel and the clutch anti-rotation lever are installed on the output clutch mechanism. By releasing the position between the clutch wheel plate and the clutch anti-rotation wheel, the state of the connection must be released, and the clutch anti-rotation lever is rotated to a position to prevent the reverse rotation of the clutch anti-rotation wheel by using the position limiting clutch member. In other words, in the drain valve driving apparatus, after the valve core is driven and displaced from the initial position to the operating position, the driving force of the driving source is no longer transmitted to the valve core, and the valve core, the pulling member and the traction member In order to maintain the state when the core is in the operating position, it is necessary to implement the shift function of the clutch wheel plate and the reverse rotation stop function of the clutch anti-rotation wheel by using different members, so that the parts are relatively large, and the manufacturing cost is relatively high. This is relatively high.

(Patent Document 1) CN 104264423 B

The present invention has been completed in order to solve the above problems, and an object of the present invention is to provide a drain valve drive device that helps to reduce the manufacturing cost.

In order to achieve the above object, the present invention provides a drain valve drive device, which includes a drive source, an output clutch mechanism, an interlock braking mechanism, a switching position limiting mechanism, a rotation output member, a pulling member and a valve core, The driving force is sequentially transmitted to the valve core via the clutch wheel and the electric wheel, the rotation output member and the pulling member included in the output clutch mechanism, and the output clutch mechanism through the interlocking brake mechanism and the switching position limiting mechanism. After the valve core is displaced from the initial position to the operating position, the driving force of the driving source is no longer transmitted to the valve core, and the valve core, the pulling member and the rotation output member are transferred to the valve core. Is maintained at the operating position, of which the switching position limiting mechanism has a force And a switching member, wherein the switching position limit lever rotates along the rotation output member, and the force applying member separates the transmission wheel from the clutch wheel along the rotation axis directions of the transmission wheel and the clutch wheel. The actuation force is applied, and the switching position limiting lever has a switching part and a position limiting part integrally, and the switching part overcomes the action force of the force applying member when the valve core is in the initial position so that the clutch The driving wheel is installed so as to be displaced from the position joined with the clutch wheel to the position separated from the clutch wheel through the action force of the force applying member when the valve core is displaced to the operating position, the position The restricting portion is provided to limit the reverse rotation of the electric wheel when the valve core is displaced to the operating position.

In addition, the so-called "reverse rotation of the electric wheel" means that the electric wheel rotates in the direction opposite to the rotation direction of the electric wheel when the driving force of the drive source is transmitted to the electric wheel.

According to the drain valve driving apparatus of the present invention, when the valve core is driven and displaced from the initial position to the operating position, the driving force of the driving source is no longer transmitted to the valve core, and the valve core, the pulling member and the rotation output member are valved. In order to maintain the state when the core is in the operating position, it is not necessary to implement the shift function of the clutch wheel and the function of preventing the reverse rotation of the clutch anti-rotation wheel by using different members as before. It is only necessary to control the operation of the electric wheels with only one switching position limiting lever integrally provided with the restricting unit, thus simplifying the structure of the drain valve driving device, which helps to reduce the manufacturing cost.

In the drain valve driving apparatus of the present invention, preferably, the electric wheel comprises: a shaft portion extending along the rotation axis direction; And a disk portion extending radially outward from the shaft portion and having a clamping jaw installed at an outer circumference thereof to engage and separate the clutch wheel.

According to the drain valve driving apparatus of the present invention, by installing the clamping jaw on the outer periphery of the disc-shaped portion of the electric wheel, the impact force received when the clamping jaw is fitted with the clutch wheel, and reduces the friction damage of the clamping jaw to use the electric wheel It helps to prolong life.

In the drain valve driving apparatus of the present invention, preferably, the electric wheel includes a shaft portion extending along the rotation axis direction; And a disc-shaped portion extending radially outward from the shaft portion and having a clamping plate installed at an outer circumference thereof so that the position limiting portion is fitted and fixed when the valve core is displaced to an operating position.

According to the drain valve driving apparatus of the present invention, by providing the clamping plate on the outer periphery of the disc-shaped portion of the electric wheel, the impact force received when the clamping plate is fitted and fixed to the position limiting position of the switching position limiting lever, It helps to alleviate frictional damage and extend the service life of the electric wheel.

The following structure can be adopted in the drain valve drive device of the above structure: The clamping plate projects toward the side opposite to the clutch wheel.

The drain valve driving apparatus of the present invention is configured to protrude the clamping plate toward the side opposite to the clutch wheel, so that it is easy to fix the position limiting portion of the switching position limiting lever to the clamping plate when the valve core is displaced to the operating position. .

In the drain valve driving apparatus of the present invention, preferably, the output clutch mechanism includes a planetary gear mechanism, and the planetary gear mechanism includes: the electric wheel having a sun gear portion; Planetary gears meshing with the sun gear; A planetary gear carrier connected to the rotation output member; And a gear gear engaged with the planetary gear and controlled by the interlock braking mechanism.

In the drain valve driving apparatus having the above structure, the following structure can be adopted: The electric wheel includes: an shaft portion extending along the rotation axis direction and penetrating the clutch wheel; A sun gear portion provided at a position closer to one end side of the shaft portion than the clutch wheel of the shaft portion; And a disk portion which is installed at a position closer to the other end side of the shaft portion than the clutch wheel of the shaft portion, and extends radially outwardly from the shaft portion, wherein the clutch wheel is fitted to and separated from the disk portion and is restricted in the position. The part limits the reverse rotation of the electric wheel by contacting the disc-shaped part when the valve core is displaced to the operating position.

In the drain valve driving apparatus of the above structure, the following structure may be adopted: a clamping jaw fitted and detached from the clutch wheel is provided on the outer peripheral portion of the disc-shaped portion, the clamping jaw protrudes toward the clutch wheel, and A clamping plate is installed at an outer circumferential portion of the disc portion to fix the position limiting portion when the valve core is displaced to an operating position, and the clamping plate protrudes toward the side opposite to the clutch wheel.

According to the drain valve driving apparatus of the above structure, by installing the clamping jaw and the clamping plate on the outer periphery of the disc-shaped portion of the electric wheel, the impact force when the clamping jaw and the clamping plate is fitted with the clutch wheel, and reduces the friction between the clamping jaw and the clamping plate Helps to alleviate damage and extend the service life of the wheel.

In the drain valve driving apparatus of the present invention, preferably, the drain valve driving apparatus includes a support shaft for supporting the clutch wheel and the electric wheel, and the switching position limit lever includes a groove portion or a through hole through which the support shaft is inserted. Equipped.

According to the drain valve driving apparatus of the above structure, when assembling, the switching position limit lever can be positioned by using the groove portion or the through portion, thereby improving the assembly efficiency.

In the drain valve driving apparatus of the present invention, preferably, the force applying member is a compression spiral spring installed between the clutch wheel and the electric wheel.

According to the drain valve driving apparatus of the above structure, the structure of the force applying member is simple, which helps to reduce the manufacturing cost.

According to the present invention, the valve core is driven from the initial position to the operating position so that when displaced, the driving force of the driving source is no longer transmitted to the valve core, and the valve core, the pulling member and the rotation output member are moved to the operating position. In order to maintain the state when laid, the switching part and the position limiting part are integrally provided without having to implement the function of moving the clutch wheel and preventing the reverse rotation of the clutch anti-rotation wheel by using different members as in the prior art. Since only one switching position limiting lever controls the operation of the electric wheel, the structure of the drain valve driving device is simplified, which helps to reduce the manufacturing cost.

1 is a three-dimensional view schematically showing a drain valve driving apparatus according to an embodiment of the present invention, in which a part of the housing is omitted.
Fig. 2 is a side sectional view schematically showing a local structure of a drain valve driving apparatus according to the embodiment of the present invention, showing a state in which the clutch wheel and the electric wheel of the output clutch mechanism are joined to each other.
3 is a three-dimensional view schematically showing a local structure of a drain valve driving apparatus according to the embodiment of the present invention, showing a state in which the clutch wheel and the electric wheel of the output clutch mechanism are joined to each other.
Figure 4 is another three-dimensional view schematically showing the local structure of the drain valve drive device of the embodiment of the present invention.
5 is a cross-sectional view schematically showing a local structure of a drain valve driving apparatus according to the embodiment of the present invention, showing a state when the clutch wheel and the electric wheel of the output clutch mechanism are separated from each other.
FIG. 6 is a three-dimensional view schematically showing a local structure of a drain valve driving apparatus according to an embodiment of the present invention, and showing a state when the clutch wheel and the electric wheel of the output clutch mechanism are separated from each other.
7 is a three-dimensional view schematically showing a local structure of a drain valve driving apparatus of a modification of the present invention.

Hereinafter, a drain valve driving apparatus according to an embodiment of the present invention will be described in conjunction with the accompanying drawings.

First, with reference to Figures 1 to 6, the structure of the drain valve driving apparatus of the embodiment of the present invention will be described, wherein Figure 1 is a three-dimensional view schematically showing the drain valve driving apparatus of the embodiment of the present invention 2 is a side cross-sectional view schematically showing a local structure of a drain valve driving apparatus according to an embodiment of the present invention, wherein the clutch wheel and the electric wheel of the output clutch mechanism are joined to each other. 3 is a three-dimensional view schematically showing a local structure of a drain valve driving apparatus according to the embodiment of the present invention, and shows a state when the clutch wheel and the electric wheel of the output clutch mechanism are joined to each other. 4 is another three-dimensional view schematically showing a local structure of the drain valve driving apparatus of the embodiment of the present invention, and FIG. 5 is a local part of the drain valve driving apparatus of the embodiment of the present invention. Figure is a cross-sectional view schematically showing the structure, the clutch wheel and the electric wheel of the output clutch mechanism when the state is separated from each other, Figure 6 schematically shows a local structure of the drain valve drive device of the embodiment of the present invention 3D is a view showing a state where the clutch wheel and the electric wheel of the output clutch mechanism are separated from each other.

Here, for convenience of description, the three directions that cross each other are described as X, Y and Z directions, and one side of the Z direction is set as the Z1 direction, and the other side of the Z direction is set as the Z2 direction. do.

<Overall structure of drain valve drive device>

As shown in FIG. 1, the drain valve driving device includes a drive source, an output clutch mechanism 3, an interlocking brake mechanism 4, a switching position limiting mechanism 5 (see FIG. 2), a rotation output member 6, and a pulling force. The member 7 and the valve core 8 are provided, among which the driving force of the driving source sequentially rotates the clutch wheel 31 and the electric wheel 32 (see FIG. 2) included in the output clutch mechanism 3. It is transmitted to the valve core 8 via the output member 6 and the pulling member 7, and by controlling the output clutch mechanism 3 through the interlocking brake mechanism 4 and the switching position limiting mechanism 5, the valve core After (8) is switched from the initial position to the operating position, the driving force of the drive source is no longer transmitted to the valve core (8), and also the valve core (8), the pulling member (7) and the rotation output member (6). Is maintained in the state where the valve core 8 is in the operating position.

Here, the drive source, the output clutch mechanism 3, the interlock braking mechanism 4, the switching position limiting mechanism 5 and the rotation output member 6 are all housed in the housing 1.

<Structure of Housing>

As shown in FIG. 1, the housing 1 comprises a first housing not shown and a second housing 12 shown, wherein the first housing and the second housing 12 are along the Z direction in FIG. 1. Assembled and connected together via screws (not shown), thereby providing a drive source, an output clutch mechanism (3), an interlock braking mechanism (4) and a switching position limiting mechanism (5) between the first housing and the second housing (12). And a space in which the rotation output member 6 is accommodated. Specifically, the first housing has a top wall perpendicular to the Z direction and a side wall erected toward one side of the second housing from an edge of the top wall, and the second housing 12 is perpendicular to the Z direction. And a side wall which is erected from the edge of the bottom wall and the bottom wall toward one side of the first housing, and surrounded by the top wall and the side wall of the first housing, the bottom wall and the side wall of the second housing 12, and an output clutch mechanism ( 3), a space for accommodating the interlocking brake mechanism 4, the switching position limiting mechanism 5 and the rotation output member 6 is formed. In addition, the housing 1 includes a terminal sheet portion 123, which supports the power supply terminal 9 electrically connected to a driving source.

<Structure of driving source>

Here, the drive source is a motor having a stator and a rotor, among which the rotor has a rotating shaft and a magnet body fixed to the rotating shaft, one end of the rotating shaft (the upper end in FIG. 1) has a pinion (not shown), The pinion is engaged with the clutch wheel 31 included in the output clutch mechanism 3, and the stator has a coil rim electrically connected to the power supply terminal 9.

<Structure of Output Clutch Mechanism>

As shown in Fig. 2, the output clutch mechanism 3 includes a clutch wheel 31 and a planetary gear mechanism. The clutch wheel 31 comprises: a shaft sleeve portion 311 which is covered by a shaft portion 322 of the following shaft portion 322 of the electric wheel 32 and a gear portion 35 of the following gear; A disk portion 312 extending radially outward from the shaft sleeve portion 311 (in the example shown, extending radially outward from an upper end of the shaft sleeve portion 311, but not limited thereto); And a circumferential wall portion 313 (standing in the example shown in the Z2 direction, but not limited thereto) erected from the outer circumference of the disc portion 312. In addition, the planetary gear mechanism includes: an electric wheel 32 having a sun gear portion 321; Planetary gears 33 meshed with sun gear 321 (the number of planetary gears 33 can be set as appropriate); A planetary gear carrier 34 connected to the rotation output member 6 (in the illustrated example, connected to the rotation output member 6 via a transient gear TG, but not limited thereto); And a gear gear 35 meshed with the planetary gear 33 and controlled by the interlock braking mechanism 4.

Here, the planetary gear carrier 34 has a shaft portion 341 and a disc shaped portion 342, of which the shaft portion 341 is a pinion portion 3411 (in the illustrated example, the pinion portion on the top) 3411 is installed, but not limited thereto, and the disc shaped portion 342 extends radially outward from the shaft portion 341 (in the example shown, extending radially outward from the bottom of the shaft sleeve portion 341). But not limited thereto). In addition, the gear 35 includes a shaft sleeve 351, a disk-shaped portion 352 and the peripheral wall portion 353, wherein the shaft sleeve 351 is the following shaft portion 322 of the electric wheel (32) ), The disk portion 352 extends radially outward from the shaft sleeve portion 351, the outer circumferential teeth portion 3151 is provided on the outer circumferential surface of the disk portion 352, the circumferential wall portion 353 is a disk portion It is built near the outer periphery of 352. In addition, the planetary gear carrier 34 and the gear 35 are surrounded to form a space in which the planetary gear 33 is accommodated.

2, the rotation axis direction of the electric wheel 32 and the rotation axis direction of the clutch wheel 31 are the same. In addition to the sun gear portion 321, the electric wheel 32 further includes a shaft portion 322 and a disc shaped portion 323, among which the shaft portion 322 extends along the rotation axis direction of the electric wheel 32, The sun gear part 321 penetrates the clutch wheel 31, and the sun gear part 321 is provided at a position closer to the one end side (Z1 direction) of the shaft part 322 than the clutch wheel 31 of the shaft part 322, and the disk-shaped part 323 is It is installed at a position closer to the other end side (Z2 direction) of the shaft portion 322 than the clutch wheel 31 of the shaft portion 322, and extends radially outward from the shaft portion 322, and the electric wheel 32 is the disc shaped portion 323. At the outer circumference of the clutch, the clutch wheel 31 is fitted and separated.

Here, among the electric wheels 32, a clamping jaw 3231, which is fitted to and separated from the clutch wheel 31, is installed at an outer circumferential portion of the disc-shaped portion 323, and the clamping jaw 3231 is a clutch wheel 31. Clamping for protruding toward) and clamping the following position limiting portion 512 of the switching position limiting mechanism 5 when the valve core 8 is displaced to the operating position on the outer peripheral portion of the disc shaped portion 323. The plate 3322 is installed, and the clamping plate 3322 protrudes toward the side (Z2 direction side) opposite to the clutch wheel 31.

In addition, a support shaft SS1 is installed in the housing 1, and the support shaft SS1 supports the clutch wheel 31 and the electric wheel 32. Specifically, the support shaft SS1 extends along the rotational axis directions of the clutch wheel 31 and the electric wheel 32, and one end of the support shaft SS1 is supported by the first housing, and the support shaft ( The other end of SS1 is supported by the second housing 12, and the support shaft SS1 penetrates the center of the shaft portion 322 of the electric wheel 32 and the shaft portion 341 of the planetary gear carrier 34. , The insertion position limiting lever 51 included in the switching position limiting mechanism 5 is inserted into the following through portion 513.

<Structure of Interlocking Braking Mechanism>

As shown in FIG. 1, the interlock braking mechanism 4 includes an interlocking portion 41 and a braking portion 42.

The interlocking portion 41 adopts the same structure as the interlocking member in Patent Document 1 mentioned in the Background section. Specifically, the linkage portion 41 adopts a self-induced master / slave structure, which includes a first portion and a second portion rotating along the same axis of rotation (in the illustrated example, the first portion and the second portion). The part is supported by the support shaft SS4 parallel to the support shaft SS1, one end of the support shaft SS4 is supported by the first housing, and the other end of the support shaft SS4 is the second housing 12. The first part is engaged with a pinion installed at one end of the rotational shaft included in the drive source, for example, via a transient gear (not shown), and when the first part rotates at high speed, the second part The action of the inductive force thus causes the rotation. More specifically, the first portion includes a magnet wheel and a magnet shaft gear, a torsion spring is connected between the magnet wheel and the magnet shaft gear, the magnet shaft gear transfers the driving force of the driving source to the magnet wheel, The two parts include an induction member, the induction member having a circular upper plate portion and a cylindrical side wall portion integrally formed therein to receive a magnet wheel, and the induction member and the magnet wheel have the same support shaft (support shaft SS4 in the illustrated example). Rotate around), and a very small fixed gap is formed between the magnet wheel and the guide member.

The braking portion 42 adopts the same structure as the braking member and the rotating balance member in Patent Document 1 mentioned in the background section. Specifically, the brake portion 42 includes a brake wheel 421, a return elastic member (for example, a spring, not shown), and a transient member 422, among which the brake wheel 421 is supported. It is supported by the shaft SS3 (which is parallel to the support shaft SS1, one end of which is supported by the first housing and the other end of which is supported by the second housing) and is rotatable, and further, the second of the linking portion 41. Driven by a portion (guide member) (in the illustrated example, the braking wheel 421 is connected to, but not limited to, the second portion via a transient gear), integral with the scalloped gear 4211 and the scalloped gear. The brake member 4212 has a control plate 4221. The brake unit 4212 has a control plate 4221 and a position corresponding to that of the brake plate 4212. ) May prevent rotation of the transient member 422 when the control plate 4201 is in contact with the control plate 4221.

Here, the transient member 422 further includes a gear portion 4222, wherein the gear portion 4422 has an outer peripheral tooth portion 3351 of the gear rim 35 included in the planetary gear mechanism of the output clutch mechanism 3. ) Is matched with).

<Structure of switching position limiting mechanism>

As shown in FIG. 2, the switching position limiting mechanism 5 includes a switching position limiting lever 51 and a force applying member 52, among which the switching position limiting lever 51 includes a rotation output member 6. ), The force applying member 52 applies an action force that separates the electric wheel 32 from the clutch wheel 31 along the rotation axis directions of the clutch wheel 31 and the electric wheel 32.

In addition, as shown in FIG. 3, the switching position limit lever 51 includes a switching unit 511 and a position limiting unit 512 integrally, among which the switching unit 511 includes a valve core 8. Is in the initial position, the electric wheel 32 is joined to the clutch wheel 31 by overcoming the action force of the force applying member 52, the electric wheel 32 when the valve core 8 is displaced to the operating position It is installed to be displaced from the position joined with the clutch wheel 31 to the position separated from the clutch wheel 31 through the action force of the force applying member 52, the position limiting portion 512 is the valve core 8 operating position It is installed to limit the reverse rotation of the electric wheel 32 at the time of displacement.

Here, as shown in FIG. 1, a support shaft SS2 parallel to the support shaft SS1 is installed in the housing 1, and the support shaft SS2 supports the switching position limit lever 51. Specifically, one end of the support shaft SS2 is supported by the first housing, the other end of the support shaft SS2 is supported by the second housing 12, and the switching position limit lever 51 is supported by the support shaft SS2. Is supported on the support shaft SS2 in a rotatable manner, and the support shaft SS2 further supports the following transient gear TG.

3 and 4, the switching position limit lever 51 includes a first plate portion 51A, a second plate portion 51B, and a connection portion 51C, and includes a first plate portion ( 51A and the second plate portion 51B extend in parallel with each other in a direction perpendicular to the Z direction in a staggered manner in the Z direction, and the connection portion 51C includes the first plate portion 51A and the second plate portion ( 51B) together, the first plate portion 51A has an insertion hole into which the support shaft SS2 is inserted, and a position remote from the rotation center of the switching position limit lever 51 of the first plate portion 51A. The through part 513 into which the switch part 511 and the support shaft SS1 are inserted is formed in the switch part, The switch part 511 is a cam part which protrudes toward the Z1 direction from the 1st plate part 51A, and The study 513 penetrates the first plate part 51A along the Z direction, and is located at a position far from the rotation center of the switching position limit lever 51 of the second plate part 51B. The tooth limiting part 512 and the protrusion part 514 are formed, among which the position limiting part 512 consists of the outer peripheral surface of the 2nd plate part 51B, and the protrusion part 514 is the 2nd plate part 51B. Protrudes toward the direction Z1, and is inserted into the position limiting groove formed in the rotation output member 6, thereby rotating the switching position limit lever 51 along the rotation output member 6 when the rotation output member 6 rotates. Also, the position limiting portion 512 and the protrusion 514 are formed at different positions of the second plate portion 51B, and the position limiting portion 512 is provided with the electric wheel 32 when the valve core 8 is displaced to the operating position. By contacting the disc shaped portion 323 of the) limit the reverse rotation of the electric wheel (32).

In addition, the force applying member 52 is a compression spiral spring provided between the clutch wheel 31 and the electric wheel 32.

<Structure of Rotating Output Member and Pulling Member>

The rotation output member 6 includes a gear portion 61 and a band pulley portion 62, among which the gear portion 61 is formed of a planetary gear carrier 34 through, for example, a transient gear TG. It is engaged with the pinion portion 3411 provided in the shaft portion 341, and a receiving groove for receiving the pulling member 7 is formed in the outer circumference of the band pulley portion 62.

The pulling member 7 is a wire rod, one end of the pulling member 7 is fitted and fixed to the rotation output member 6, for example, and the other end of the pulling member 7 is connected to the valve core 8. .

<Operation of drain valve drive device>

With the valve core 8 in the initial position, as shown in FIGS. 2 and 3, the switching portion 511 of the switching position limiting lever 51 has the electric wheel 32 with the force applying member 52. Overcome the action of the clutch to be coupled to the clutch wheel (31).

In this state, when power is supplied to the driving source, the driving force of the driving source is transmitted to the first portion of the interlocking portion 41 through, for example, a transient gear to rotate the first portion at high speed, thereby, The two parts are rotated according to the electromagnetic action to rotate the brake wheel 421, and the brake part 4212 of the brake wheel 421 is brought into contact with the control plate 4221 (at this time, the first part is idle). By preventing the rotation of the transient member 422, the gear 35 of the output clutch mechanism 3 is prevented from rotating.

On the other hand, the driving force of the driving source is transmitted to the electric wheel 32 via the clutch wheel 31, and subsequently transmitted to the planetary gear 33 meshed with the sun gear portion 321 of the electric wheel 32, wherein Since the rotation of the gear 35 of the output clutch mechanism 3 is prevented, the planetary gear carrier 34 rotates, so that the transient gear TG engaged with the pinion portion 3411 of the planetary gear carrier 34 is rotated. By rotating the rotary output member 6 meshed with the transient gear TG, and winding the pulling member 7 to the band pulley 62 of the rotary output member 6 to form a valve core ( 8) drive displacement to the operating position to open the valve.

When the valve core 8 is driven to the operating position and displaced, as shown in FIGS. 5 and 6, the switching part 511 of the switching position limit lever 51 moves the electric wheel 32 to the clutch wheel 31. It is displaced from the position where it is joined to the position separated from the clutch wheel 31, through which the driving force of the drive source is no longer transmitted to the valve core (8).

On the other hand, when the valve core 8 is driven to the operating position and displaced, as shown in FIGS. 5 and 6, the position limiting portion 512 is brought into contact with the clamping plate 3322 of the electric wheel 32. The reverse rotation of the electric wheel 32 is limited, and the driving force of the driving source continues to be transmitted to the first part of the linking part 41, and the second part of the brake wheel 421 is controlled by the magnetic induction force. The braking part 4212 is kept in contact with the control plate 4221 and the rotation of the transient member 422 is prevented, thereby preventing the rotation of the gear 35 of the output clutch mechanism 3. The carrier 34 can be locked to hold the valve core 8, the pulling member 7 and the rotation output member 6 in the state when the valve core 8 is in the operating position.

 In addition, upon stopping the supply of electricity to the drive source, the valve core 8 starts the operation of returning to the initial position due to the coordination force provided therein, and the first part of the linkage part 41 stops rotating. Since the magnetic induction force between the first portion and the second portion is lost, under the action of the return elastic member of the braking portion 42, the brake wheel 421 releases the restraint on the transient member 422, The gear 35 of the output clutch mechanism 3 is freely rotatable, whereby the valve core 8 returns to its initial position under the action of the restoring force, and the valve is closed.

According to the drain valve driving apparatus of the present invention, the valve core 8 is driven from the initial position to the operating position so that, when displaced, the driving force of the driving source is no longer transmitted to the valve core 8, the valve core 8, In order to keep the pulling member 7 and the rotation output member 6 in the state where the valve core 8 is in the operating position, the clutch wheel movement function and the clutch reverse rotation are prevented by using different members as in the prior art. If the control of the operation of the electric wheel 32 with only one switching position limit lever 51 having the switching unit 511 and the position limiting unit 512 integrally, Therefore, the structure of the drain valve drive device is simplified, which helps to reduce the manufacturing cost.

Further, according to the drain valve driving apparatus of the present invention, the clamping jaw (3231) is fitted to the clutch wheel 31 by installing the clamping jaw (3231) on the outer periphery of the disk portion 323 of the electric wheel (32). When the impact force is reduced, the frictional damage of the clamping jaw 3231 is alleviated, which helps to extend the service life of the electric wheel 32.

Further, according to the drain valve driving apparatus of the present invention, the clamping plate (3232) of the switching position limit lever 51 by providing the clamping plate (3232) on the outer periphery of the disk portion 323 of the electric wheel (32) Reduces the impact force received when the position limiting portion 512 is fitted and fixed, and alleviates the frictional damage of the clamping plate (3232), helping to extend the service life of the electric wheel (32).

Further, according to the drain valve driving apparatus of the present invention, by forming the clamping plate (3232) to protrude toward the opposite side to the clutch wheel 31, the switching position limit lever when the valve core 8 is displaced to the operating position ( It is easy to fit the position limiting portion 512 of the 51 with the clamping plate (3232).

In addition, according to the drain valve driving apparatus of the present invention, the support shaft (SS1) for supporting the clutch wheel 31 and the electric wheel 32, the switching position limit lever 51 is inserted into the support shaft (SS1). Since the through hole 513 is provided, the switching position limit lever 51 can be positioned by using the through hole 513, so that the assembling efficiency is improved.

Further, according to the drain valve driving apparatus of the present invention, since the force applying member 52 is a compression spiral spring provided between the clutch wheel 31 and the electric wheel 32, the force applying member 52 has a simple structure. This helps to reduce manufacturing costs.

Although the exemplary embodiments have been described in detail with reference to the accompanying drawings, it is obvious that the specific embodiments of the present invention are not limited to the above embodiments.

For example, in the above-described embodiment, the driving source is a motor, but the present invention is not limited thereto, and a linear actuator or the like may be used as the driving source depending on the situation.

In addition, in the above embodiment, the pulling member 7 is a wire rod, but is not limited thereto, and the pulling member may be a block-shaped member.

In addition, in the above embodiment, the switching position limit lever 51 has a through portion 513 into which the support shaft SS1 is inserted, but is not limited thereto. As shown in FIG. The through hole 513 may be replaced. In this case, assembling is easier than in the situation of installing the through part.

In addition, in the above embodiment, the force applying member 52 is a compression spiral spring installed between the clutch wheel 31 and the electric wheel 32, but is not limited to this, the force applying member is composed of a paired magnet or the like. May be

In addition, in the above embodiment, the braking portion 42 includes, but is not limited to, the braking wheel 421, the return elastic member and the transient member 422, and according to circumstances, the transient member 422 is omitted. In addition, the braking wheel 421 may be directly locked to the gear 35.

Further, in the above embodiment, the transient gear TG is provided between the planetary gear mechanism of the output clutch mechanism 3 and the rotational output member 6, but the present invention is not limited thereto. May be omitted.

1: housing
3: output clutch mechanism
4: interlocking brake mechanism
5: switching position limiting mechanism
6: rotation output member
7: pulling member
8: valve core
9: Power supply terminal
12: second housing
31: clutch wheel
32: electric wheel
33: planetary gear
34: planetary gear carrier
35: crawling
41: linkage
42: braking part
51: switching position limit rod
52: absence of force
61: gear unit
62: band pulley
311: shaft sleeve
312 disc part
313: circumferential wall
321: sun gear
322: shaft
323: disc shape
341: shaft
342: disc shape
351: shaft sleeve
352: disk
353: circumferential wall
421: brake wheel
422: transient member
511: switching part
512: position limit
513: through hole
514: protrusion
3231: clamping jaw
3232: clamping plate
3411: Pinion
3521: outer teeth
4211: sector gear
4212: braking part
4221: control plate
4222: gear part
SS1: support shaft
SS2: support shaft
SS3: support shaft
TG: Transient Gear

Claims (9)

A clutch wheel and an electric wheel, each of which includes a drive source, an output clutch mechanism, an interlocking brake mechanism, a switching position limiting mechanism, a rotation output member, a pulling member, and a valve core, and sequentially includes the driving force of the drive source in the output clutch mechanism. The valve core is transferred to the valve core via an output member and the pulling member, and the valve core is displaced from an initial position to an operating position by controlling the output clutch mechanism through the interlocking brake mechanism and the switching position limiting mechanism. A drain valve driving apparatus for preventing the driving force of a driving source from being transmitted to the valve core any more and maintaining the valve core, the pulling member, and the rotation output member in a state when the valve core is in an operating position.
The switching position limiting mechanism includes a switching position limiting lever and a force applying member,
The switching position limit lever rotates along the rotation output member,
The force applying member applies an acting force for separating the electric wheel from the clutch wheel along the rotation axis direction of the electric wheel and the clutch wheel,
The switch position limit lever is provided integrally with a switch and a position limit,
The switching part is coupled to the clutch wheel by overcoming the action force of the force applying member when the valve core is in the initial position, the power wheel is applied when the valve core is displaced to the operating position It is installed to be displaced from the position joined to the clutch wheel to the position separated from the clutch wheel through the action force of the member,
And the position limiting part is installed to limit the reverse rotation of the electric wheel when the valve core is displaced to the operating position. The method of claim 1,
The electric wheel has a shaft portion extending along the rotation axis direction; And
And a disk-shaped portion extending radially outward from the shaft portion and having a clamping jaw installed at an outer circumference thereof to engage and separate the clutch wheel. The method of claim 1,
The electric wheel has a shaft portion extending along the rotation axis direction; And
And a disk-shaped portion extending radially outward from the shaft portion and having a clamping plate installed at an outer circumference thereof so that the position limiting portion is fitted and fixed when the valve core is displaced to an operating position. The method of claim 3,
The clamping plate is a drain valve driving device, characterized in that protruding toward the side opposite to the clutch wheel. The method of claim 1,
The output clutch mechanism includes a planetary gear mechanism,
The planetary gear mechanism is:
The electric wheel having a sun gear;
Planetary gears meshing with the sun gear;
A planetary gear carrier connected to the rotation output member; And
And a gear gear engaged with the planetary gear and controlled by the interlock braking mechanism. The method of claim 5,
The electric wheel is
An axis portion extending in the rotation axis direction and penetrating the clutch wheel;
The sun gear portion provided at a position closer to one end side of the shaft portion than the clutch wheel of the shaft portion; And
It is provided at a position closer to the other end side of the shaft portion than the clutch wheel of the shaft portion, and includes a disk portion extending radially outward from the shaft portion,
The clutch wheel is fitted into and separated from the disc-shaped portion, and the position limiting part is configured to contact the disc-shaped portion when the valve core is displaced to an operating position, thereby limiting reverse rotation of the electric wheel. . The method of claim 6,
A clamping jaw is installed on the outer circumferential portion of the disc portion to engage and separate with the clutch wheel, and the clamping jaw protrudes toward the clutch wheel.
And a clamping plate installed at an outer circumferential portion of the disc portion to fix the position limiting portion when the valve core is displaced to an operating position, and the clamping plate protrudes toward a side opposite to the clutch wheel. Valve drive. The method according to any one of claims 1 to 7,
The drain valve driving device includes a support shaft for supporting the clutch wheel and the electric wheel,
The switching position limit lever is a drain valve drive device characterized in that it comprises a groove or a through-hole for the support shaft is inserted. The method according to any one of claims 1 to 7,
The force applying member is a drain valve driving device, characterized in that the compression spiral spring is installed between the clutch wheel and the electric wheel.

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