CN111734248A

CN111734248A - Automatic clutch device for window opening machine

Info

Publication number: CN111734248A
Application number: CN202010575508.XA
Authority: CN
Inventors: 朱同汉
Original assignee: Shanghai Discovery Smart Home Co ltd
Current assignee: Shanghai Tanjia Smart Home Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-10-02

Abstract

The invention discloses an automatic clutch device for a window opener, which comprises an upper cover, a lower cover, a driving mechanism, a clutch structure and a motor, wherein the driving mechanism, the clutch structure and the motor are arranged between the upper cover and the lower cover; the clutch mechanism comprises an input part, a connecting part and an output part, and the power of the motor is transmitted to the input part, the connecting part and the output part in sequence through a driving mechanism; the connecting part is provided with a rotating mechanism which can rotate along with the lower cover, and the clutch state of the clutch structure is changed along with the relative position between the rotating mechanism and the lower cover.

Description

Automatic clutch device for window opening machine

Technical Field

The invention relates to the technical field of door and window accessories, in particular to an automatic clutch device for a window opener.

Background

The existing window opening machine is automatic and manual. The automatic window opener is driven by a motor and can automatically open or close a window. An automatic window opener is composed of motor, gear box and connecting part, and features that when the motor is powered on, the gear box can reduce speed and the connecting part on window sash is pushed to drive window to open or close normally.

For example, chinese patent CN107830129A discloses a clutch structure for a window opener, which comprises a first gear, an input part used as the clutch structure, a second gear and an output part used as the clutch structure, wherein the first and second gears respectively have a first clutch member and a second clutch member, and the first gear and the gear shaft can move relatively along the axial direction of the gear shaft, so that the first and second clutch members can be engaged or disengaged.

However, when the window opener with the clutch structure is installed in a window profile, a clutch button needs to be separately arranged for realizing the switching between automatic operation and manual operation, and when the window needs to be opened and closed manually, the clutch button needs to be pressed by hands to keep the clutch state. When the clutch button is shifted to the disengaged gear, the manual state is changed into the automatic state, and the clutch button needs to be pressed once again. For the window section bar structure, in order to meet the conversion between automatic operation and manual operation, a position for installing the clutch button is required to be reserved independently, and the integral aesthetic degree of the window is reduced after the clutch button is installed, so that the air tightness, the water tightness and the like of the window are affected to different degrees.

Therefore, there is an urgent need for a clutch device for a window opener, which has a simple structure, is convenient to use, and is easy to automatically switch between automatic operation and manual operation.

Disclosure of Invention

The invention aims to solve the technical problem that the existing window opener cannot automatically realize the automatic-manual switching, and provides a clutch device for the window opener, which is easy to realize the automatic-manual switching.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the invention provides an automatic clutch device for a window opener, which comprises an upper cover, a lower cover, a driving mechanism, a clutch structure and a motor, wherein the driving mechanism, the clutch structure and the motor are arranged between the upper cover and the lower cover; the clutch mechanism comprises an input part, a connecting part and an output part, and the power of the motor is transmitted to the input part, the connecting part and the output part in sequence through a driving mechanism; the connecting part is provided with a rotating mechanism which can rotate along with the lower cover, and the clutch state of the clutch structure is changed along with the relative position between the rotating mechanism and the lower cover; the driving mechanism is a worm and gear structure which are meshed with each other, and the gear is a helical gear.

In some embodiments, the input portion, the connecting portion and the output portion are all gear structures, and a first gear structure at the input end, a clutch gear structure at the connecting portion and a second gear structure at the output end are meshed with each other and rotate under the driving of the driving structure.

In some embodiments, the clutch gear structure includes an upper clutch gear, a lower clutch gear, and a pinion fixedly disposed on the rotating mechanism, the upper clutch gear is engaged with the first gear structure, and the pinion is engaged with the lower clutch gear and the second gear structure, respectively.

In some embodiments, the rotating mechanism is a cam structure, one end of the cam structure is rotatably fixed to the lower cover, and the pinion is fixedly arranged at the other end of the cam structure.

In some specific embodiments, a limiting mechanism for limiting the relative position of the rotating mechanism and the lower cover is further arranged on the lower cover.

In some embodiments, the first gear structure comprises a first upper gear and a first lower gear, the second gear comprises a second upper gear and a second lower gear, the first upper gear is engaged with the helical gear, and the first lower gear is engaged with the upper clutch gear; the pinion gears are respectively meshed with the lower clutch gear and the second lower gear.

In some embodiments, the pinion gear is fixedly connected to the cam structure by a pin, and a spring is disposed between the pinion gear and the cam structure.

In some embodiments, the clutch gear structure includes an upper clutch gear and a lower clutch gear, and the upper cover is the upper clutch gear excluding an outer gear; the small gear is fixedly connected to the rotating mechanism through a pin shaft, a spring is arranged between the small gear and the rotating mechanism, and the small gear is attached to the upper cover under the action of the elastic force of the spring; the pinion is meshed with the lower clutch gear and the second gear structure respectively.

In some embodiments, the gear structure is connected to an adjacent component by a pin.

The invention has the beneficial effects that:

according to the structural design, through the gear structures arranged at the input end and the output end, free switching between electric operation and manual operation is achieved, the problems that an additional structure is needed and operation steps are needed for switching between the manual operation and the electric operation are solved, the structure of the equipment is simplified, the space is saved, the operation steps are simplified, and the cost is saved.

The gear structures of the input end and the output end adopt a double-gear structure, so that the reduction ratio is increased, the occupied volume of the window opening machine is reduced, the application range of products is expanded, and the overall attractiveness of a window is improved.

The combination of the cam structure and the triangular limiting structure simplifies the structure and is more convenient to realize the conversion between automatic operation and manual operation.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the lower cover in fig. 1.

Fig. 3 is an exploded view of the clutch structure of fig. 1.

Fig. 4 is a structural diagram of a gear meshing state of the clutch structure in fig. 1.

FIG. 5 is a schematic diagram of the clutch configuration in the forward electric A state.

FIG. 6 is a schematic diagram of the clutch configuration in the reverse electric B state.

Fig. 7 is a schematic diagram of the clutch structure in a manual state.

Fig. 8 is the structure restriction map of fig. 6.

Detailed Description

As shown in fig. 1 to 8, the present embodiment provides an automatic clutch device for a window opener, which, as shown in fig. 1, includes an upper cover 11 and a lower cover 12, and further includes a driving mechanism, a clutch structure and a motor 13, which are disposed between the upper cover 11 and the lower cover 12, the clutch mechanism includes an input portion, a connecting portion and an output portion, and the power of the motor 13 is sequentially transmitted to the input portion, the connecting portion and the output portion through the driving mechanism. The connecting portion is provided with a rotating mechanism rotatable with the lower cover 12. As shown in fig. 2, the clutch state of the clutch structure changes depending on the relative position between the rotation mechanism and the lower cover 12.

As shown in fig. 1, the driving mechanism is a worm 21 and a gear structure engaged with each other, and the gear is a helical gear 22.

As shown in fig. 1 and 3, the input portion, the connecting portion, and the output portion are all gear structures, and gears in the gear structures are connected with adjacent components through pin shafts. The first gear structure 141 at the input end, the clutch gear structure at the connecting portion and the second gear structure 142 at the output end are engaged with each other and rotated by the driving structure.

Specifically, as shown in fig. 3 and 4, the clutch gear structure includes an upper clutch gear 1431, a lower clutch gear 1432, and a pinion gear 144 fixedly disposed on the rotating mechanism 161, the upper clutch gear 1431 is engaged with the first gear structure 141, and the pinion gear 144 is engaged with the lower clutch gear 1432 and the second gear structure 142, respectively.

As shown in fig. 3, one end of the cam structure 161 serving as the rotating mechanism is fixed in a hole 1213 provided in the lower cover 12 by a pin 154, and the pin 154 is rotatable in the hole 1213. The pinion 144 is disposed at the other end of the cam structure 161, a spring is disposed between the cam structure 161 and the pinion 144, and the pinion 144 can move up and down under the elastic force of the spring.

As shown in fig. 2 and 3, the lower cover 12 is further provided with a limiting mechanism for limiting the cam structure, and the limiting mechanism is a triangular structure. Specifically, when the cam 161 rotates clockwise along the pin 154, it contacts with the left edge of the triangular structure of the lower cover 121, i.e., rotates to the bottom, and when the cam 161 rotates counterclockwise along the pin 154, it contacts with the right edge of the triangular structure of the lower cover 121, i.e., rotates to the bottom.

As shown in fig. 4, in order to increase the reduction ratio, reduce the volume of the window opener, and improve the overall aesthetic appearance of the window, both the input part and the output part adopt a dual-gear structure, that is, the first gear structure 141 includes a first upper gear 1411 and a first lower gear 1412, the second gear 142 includes a second upper gear 1421 and a second lower gear 1422, the first upper gear 1411 is engaged with the helical gear 22, and the first lower gear 142 is engaged with the upper clutch gear 1431; the pinion gear 144 is engaged with the lower clutch gear 1432 and the second lower gear 1422, respectively.

In other embodiments, the input and output portions may employ non-duplicate gears, or one of the input and output portions may employ duplicate gears.

In a specific application, as shown in fig. 5, the window opener is powered on, the motor 13 rotates in a forward direction to drive the first gear 141, if the first gear 141 rotates counterclockwise, the clutch gear structure 143 engaged with the first gear 141 rotates clockwise, under the action of the elastic force of the spring 171, a friction force is generated between the pinion 144 and the end surface of the clutch gear structure 143, the friction force enables the cam 161 to integrally rotate along with the clutch gear structure 143 until the cam 161 contacts with the left edge of the triangular structure of the lower cover 121, and reaches a state shown in fig. 5, at this time, the pinion 144 engaged with the clutch gear structure 143 simultaneously engages with the second lower gear 1422 of the second gear 142, and an "a electric state" is reached.

Similarly, if the motor 13 rotates in the reverse direction, when the cam 161 rotates counterclockwise to the bottom along the pin 154, it contacts with the right edge of the triangular structure of the lower cover 121, as shown in fig. 6, and at this time, the clutch pinion 144 meshes with the lower gear 1422 of the second gear 142, and the "B-motor state" is achieved.

When the window opener is powered off, the window can be opened and closed in a manual mode, namely the second gear 142 is driven to rotate manually, at the moment, the second gear 142 is not meshed with any gear, the self-locking structure of the input end is disengaged integrally, the door can rotate freely manually, and resistance is almost eliminated. That is, when the rotation locus of the cam structure 161 is in the non-state a and the non-state B, the window opener reaches the "C manual state".

In order to further ensure the safety of the conversion between the electric operation and the manual operation, after the window opener is driven by the motor to work in place (the door and window is opened to the maximum position, the complete closing position and the middle electric stop position), the window opener rotates reversely for a plurality of circles, so that the pinion 144 is completely separated from the second gear 142.

The free switching between electric and manual operation eliminates the problems that the switching between manual operation and electric operation needs additional structures and operation steps, simplifies the structure of equipment, saves space, simplifies operation steps and saves cost.

In other embodiments, the external teeth of the upper clutch gear can be removed and directly used as the upper cover, the pinion is fixedly connected to the rotating mechanism through the pin shaft, the pinion is attached to the upper cover under the action of the elastic force of the spring arranged below the pinion, and the assembly formed by the cover plate and the lower gear can freely rotate along the pin shaft. The structure can save the processing cost of the upper cover, save materials and improve economic benefits.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. An automatic clutch device for a window opener comprises an upper cover and a lower cover, and is characterized by further comprising a driving mechanism, a clutch structure and a motor, wherein the driving mechanism, the clutch structure and the motor are arranged between the upper cover and the lower cover; the clutch mechanism comprises an input part, a connecting part and an output part, and the power of the motor is transmitted to the input part, the connecting part and the output part in sequence through a driving mechanism; the connecting part is provided with a rotating mechanism which can rotate along with the lower cover, and the clutch state of the clutch structure is changed along with the relative position between the rotating mechanism and the lower cover; the driving mechanism is a worm and gear structure which are meshed with each other, and the gear is a helical gear.

2. The automatic clutch device for window opener according to claim 1, wherein the input portion, the connecting portion and the output portion are all gear structures, and a first gear structure at the input end, a clutch gear structure at the connecting portion and a second gear structure at the output end are engaged with each other and rotate under the driving of the driving structure; the clutch gear structure comprises an upper clutch gear, a lower clutch gear and a pinion fixedly arranged on the rotating mechanism, the upper clutch gear is meshed with the first gear structure, and the pinion is respectively meshed with the lower clutch gear and the second gear structure.

3. The automatic clutch device for window opener according to claim 2, wherein the rotating mechanism is a cam structure, one end of the cam structure is rotatably fixed to the lower cover, and the pinion is fixedly disposed at the other end of the cam structure.

4. The automatic clutch device for window opener according to claim 1, wherein the lower cover is further provided with a limiting mechanism for limiting the relative position of the rotating mechanism and the lower cover.

5. The automatic clutch apparatus for a window opener of claim 2, wherein the first gear structure includes a first upper gear and a first lower gear, the second gear includes a second upper gear and a second lower gear, the first upper gear is engaged with the helical gear, and the first lower gear is engaged with the upper clutch gear; the pinion gears are respectively meshed with the lower clutch gear and the second lower gear.

6. The automatic clutch device for window opener according to claim 3, wherein the pinion is fixedly connected to the cam structure through a pin shaft, and a spring is disposed between the pinion and the cam structure.

7. The automatic clutch device for window opener according to claim 2, wherein the clutch gear structure includes an upper clutch gear and a lower clutch gear, and the upper cover is the upper clutch gear excluding the outer gear; the small gear is fixedly connected to the rotating mechanism through a pin shaft, a spring is arranged between the small gear and the rotating mechanism, and the small gear is attached to the upper cover under the action of the elastic force of the spring; the pinion is meshed with the lower clutch gear and the second gear structure respectively.

8. The automatic clutch device for window opener according to any one of claims 2 to 7, characterized in that the gear structure is connected with an adjacent component by a pin shaft.