CN217659189U - Curtain opening and closing device - Google Patents

Abstract

The utility model relates to an intelligence house technical field, concretely relates to (window) curtain device that opens and shuts. The application aims at solving the problem of inconvenient installation of the existing curtain opening and closing device. The application discloses (window) curtain device that opens and shuts includes: a housing; driving the roller assembly; the two sides of the driving wheel are respectively provided with one hanging mechanism, each hanging mechanism comprises a first support, a second support, a first driven wheel and a second driven wheel, the first driven wheel is rotatably arranged on the first support, the second driven wheel is rotatably arranged on the second support, and at least one of the first support and the second support is arranged to be capable of axially reciprocating along the driving wheel; the switch part, the hooking mechanism moves to the installation position when the switch part is switched from the first position to the second position under the action of external force, and the hooking mechanism moves to the use position when the external force is removed and is reset from the second position to the first position. This application realizes hanging the installation and the dismantlement of mechanism, simple to operate through switch portion.

Description

Curtain opening and closing device

Technical Field

The utility model relates to an intelligence house technical field, concretely relates to (window) curtain device that opens and shuts.

Background

In order to realize the automatic control of the horizontal pulling type curtain, the electric curtain is produced. However, for a household in which a manual curtain is installed, the curtain rail needs to be entirely detached and replaced with a rail for turning the electric curtain to realize electric modification of the curtain, and the modification cost is high.

Therefore, some manufacturers develop a curtain opening and closing device, which can be directly installed on a curtain rail to realize automatic control of the curtain without modifying the existing manual curtain. Specifically, the curtain opening and closing device generally includes a housing, a driving roller disposed in the housing, and a hanging mechanism disposed on the housing, wherein the driving roller partially extends out of the housing, and the hanging mechanism is mounted on the curtain rail and presses the driving roller against the bottom of the curtain rail, so that the curtain opening and closing device is driven to travel along the curtain rail by the rotation of the driving roller, and the curtain is driven to open and close during the travel.

However, in order to implement installation on a curtain rail, the existing curtain opening and closing device usually requires a complex installation process, is inconvenient to install, and especially cannot implement one-hand installation.

Accordingly, there is a need in the art for a new curtain opening and closing device that solves the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve above-mentioned at least one problem among the prior art, be for solving the inconvenient problem of installation that current (window) curtain device exists that opens and shuts, this application provides a (window) curtain device that opens and shuts, the (window) curtain device that opens and shuts includes: the top of the shell is provided with a through hole; the driving roller assembly comprises a driving mechanism and a driving wheel, the driving mechanism is used for driving the driving wheel to rotate, and the driving wheel is arranged in the shell and partially extends out of the through hole; the hanging mechanism comprises two hanging mechanisms, the two hanging mechanisms are respectively arranged on two sides of the driving wheel along the rolling direction of the driving wheel, each hanging mechanism comprises a first support, a second support, a first driven wheel and a second driven wheel, the first driven wheel is rotatably arranged on the first support, the second driven wheel is rotatably arranged on the second support, at least one of the first support and the second support is arranged to be capable of reciprocating along the axial direction of the driving wheel, the movement enables the hanging mechanism to be switched between a mounting position and a using position, and a switch part is arranged on the shell and is in transmission connection with the hanging mechanisms, the switch part is arranged to be switched from the first position to the second position under the action of external force, and reset from the second position to the first position when the external force is removed, and when the switch part is switched from the first position to the second position, the hanging mechanism can be switched from the using position to the mounting position; when the switch portion is reset from the second position to the first position, the hanging mechanism is switched from the mounting position to the use position.

In an optimal technical scheme of the curtain opening and closing device, the first support comprises a first sliding block and a first supporting rod, an extending hole is formed in the top surface of the outer shell, the lower end of the first supporting rod is fixedly connected to the first sliding block, the upper end of the first supporting rod extends out of the extending hole, the first driven wheel is rotatably arranged at the upper end of the first supporting rod, and the first sliding block is slidably arranged in the outer shell and corresponds to the first sliding hole.

In a preferred technical solution of the above curtain opening and closing device, the second bracket includes a second slider and a second support rod, a lower end of the second support rod is fixedly connected to the second slider, an upper end of the second support rod extends out of the extending hole, the second driven wheel is rotatably disposed at an upper end of the second support rod,

the second sliding block is slidably disposed in the housing and is disposed corresponding to the second sliding hole.

In a preferred embodiment of the above window curtain opening and closing device, the hanging mechanism further includes a first elastic member, the first elastic member is connected to the first slider and the second slider, and the first elastic member is configured to store elastic potential energy when the hanging mechanism is in the installation position.

In the preferable technical scheme of the curtain opening and closing device, a first mounting seat is arranged on the side surface, close to the second sliding block, of the first sliding block, a second mounting seat is arranged on the side surface, close to the first sliding block, of the second sliding block, the first elastic piece is a compression spring, and two ends of the compression spring are respectively sleeved on the first mounting seat and the second mounting seat.

In the preferable technical scheme of the curtain opening and closing device, the hanging mechanism further comprises a housing, the housing is arranged in the housing, a first via hole and a second via hole are formed in the top of the housing, a first sliding groove and a second sliding groove are formed in the housing, a first supporting rod extends out of the first via hole, a second supporting rod extends out of the second via hole, a first sliding block is slidably arranged in the first sliding groove, and a second sliding block is slidably arranged in the second sliding groove.

In the preferred technical scheme of above-mentioned (window) curtain device that opens and shuts, the housing includes last casing and the lower casing that lock is connected each other, the interior top surface middle part of going up the casing is provided with the edge the axially extended last protruding structure of drive wheel, it will to go up protruding structure last casing is separated for first half groove and second first half groove, the interior bottom surface middle part of casing is provided with the edge down the axially extended lower protruding structure of drive wheel, protruding structure will down the casing is separated for first half groove and second half groove, first half groove with first half groove encloses to establish and forms first spout, second first half groove with second half groove encloses to establish and forms the second spout.

In the preferable technical scheme of the curtain opening and closing device, a first limit structure and a second limit structure are formed between the upper convex structure and the lower convex structure, the side of the first spring mounting seat, which is far away from the first elastic piece, can be abutted against the first limit structure, and the side of the second spring mounting seat, which is far away from the first elastic piece, can be abutted against the second limit structure.

In a preferred technical solution of the window curtain opening and closing device, the switch portion includes a first clamping plate and a second elastic member, a first sliding hole is formed in a first side surface of the housing, the first clamping plate is pivotally disposed on the first side surface, the second elastic member is configured to store elastic potential energy when the first clamping plate pivots from a position where the first clamping plate is closed relative to the housing to a position where the first clamping plate is opened relative to the housing under an external force, and release the elastic potential energy after the external force is removed, so that the first clamping plate pivots from the position where the first clamping plate is opened relative to the housing to the position where the first clamping plate is closed relative to the housing, wherein when the first clamping plate pivots from the position where the first clamping plate is opened relative to the housing to the position where the first clamping plate is closed relative to the housing, an inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole.

In a preferred embodiment of the window covering opening and closing device, the switch portion includes a first clamping plate, a second elastic member and a third elastic member, a first sliding hole is formed on a first side surface of the housing, a second sliding hole is formed on a second side surface of the housing opposite to the first side surface, the first clamping plate is pivotally disposed on the first side surface, the second elastic member is configured to store elastic potential energy when the first clamping plate pivots from a closed position to an open position relative to the housing under an external force, the elastic potential energy is released and thus the first clamping plate pivots from the open position to the closed position relative to the housing after the external force is removed, wherein when the first clamping plate pivots from the open position relative to the housing to the closed position relative to the housing, an inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole, the second clamping plate is pivotally disposed on the second side surface, the third elastic member is disposed such that the second clamping plate pivots from the open position to the closed position relative to the housing under the external force and thus the second clamping plate pushes the second clamping plate to slide into the open position relative to the second sliding hole, and thus the second clamping plate pivots from the second clamping plate to the open position relative to the second clamping plate when the external force is removed, and the second clamping plate pivots to the second clamping plate and thus the second clamping plate pivots to the open position relative to the housing to the second clamping position relative to the second clamping plate.

In an optimal technical scheme of the curtain opening and closing device, a first shaft seat is arranged on the inner side face of the first clamping plate, a first shaft hole is formed in the first shaft seat, a second shaft seat is arranged on the first side face, a second shaft hole is formed in the second shaft seat, the first shaft hole is connected with the second shaft hole through a first rotating shaft, a third shaft seat is arranged on the inner side face of the second clamping plate, a third shaft hole is formed in the third shaft seat, a fourth shaft seat is arranged on the second side face, a fourth shaft hole is formed in the fourth shaft seat, and the third shaft hole is connected with the fourth shaft hole through a second rotating shaft.

In the preferable technical scheme of above-mentioned (window) curtain device that opens and shuts, first storage tank has been seted up to the medial surface of first splint, the first axle seat set up in the first storage tank, the first side is formed with first logical groove, the second axle seat set up in first logical groove, the back is installed, the first axle seat in first logical groove, the second storage tank has been seted up to the medial surface of second splint, the second axle seat set up in the second storage tank, the second side is formed with the second and leads to the groove, the fourth axle seat set up in the second leads to the groove, the back is installed, the third axle seat in the second leads to the groove.

In a preferred technical solution of the window curtain opening and closing device, a portion of the first side surface located below the second shaft hole and a portion of the second side surface located below the fourth shaft hole are gradually narrowed from top to bottom along a vertical direction; and/or a first shallow groove is formed in the lower part of the outer side surface of the first clamping plate, and a second shallow groove is formed in the lower part of the outer side surface of the second clamping plate.

In a preferred technical solution of the window curtain opening and closing device, the switch portion includes a first button and a fourth elastic member, the first button is elastically disposed on the first side surface of the housing through the fourth elastic member, and the fourth elastic member is configured to store elastic potential energy when the first button is pressed down under an external force, wherein when the first button is pressed down, an inner side surface of the first button pushes the first bracket to slide into the first sliding hole.

In a preferred embodiment of the window curtain opening and closing device, the switch portion includes a first button, a second button, a fourth elastic member, and a fifth elastic member, the first button is elastically disposed on the first side surface of the housing through the fourth elastic member, the fourth elastic member is configured to store elastic potential energy when the first button is pressed under an external force, wherein when the first button is pressed, an inner side surface of the first button pushes the first bracket to slide into the first sliding hole, the second button is elastically disposed on the second side surface of the housing through the fifth elastic member, and the fifth elastic member is configured to store elastic potential energy when the second button is pressed under an external force, wherein when the second button is pressed, an inner side surface of the second button pushes the second bracket to slide into the second sliding hole.

Through setting up switch portion for the (window) curtain device that opens and shuts of this application has simple to operate's advantage. Specifically, through making the switch portion switch to the second position by the primary importance under the exogenic action for hitching the mechanism can switch to the mounted position by the mounted position, can conveniently remove the (window) curtain device that opens and shuts to the (window) curtain track by the mounted position this moment, then when external force was removed, the switch portion resets to the primary importance by the second place, makes hitching the mechanism and switches to the mounted position by the mounted position, can install the (window) curtain device that opens and shuts on the (window) curtain track. In other words, the installation of the device can be realized through simple opening and closing actions, and the installation process of the curtain opening and closing device is greatly simplified.

Scheme 1. A (window) curtain device that opens and shuts, its characterized in that, the (window) curtain device that opens and shuts includes:

the top of the shell is provided with a through hole;

the driving roller assembly comprises a driving mechanism and a driving wheel, the driving mechanism is used for driving the driving wheel to rotate, and the driving wheel is arranged in the shell and partially extends out of the through hole;

two hooking mechanisms respectively arranged on two sides of the driving wheel along the rolling direction of the driving wheel, each hooking mechanism comprises a first bracket, a second bracket, a first driven wheel and a second driven wheel, the first driven wheel is rotatably arranged on the first bracket, the second driven wheel is rotatably arranged on the second bracket, at least one of the first bracket and the second bracket is arranged to reciprocate along the axial direction of the driving wheel, the movement enables the hooking mechanism to be switched between an installation position and a use position,

a switch part which is arranged on the shell and is in transmission connection with the hanging mechanism, the switch part is arranged to be switched from a first position to a second position under the action of external force and reset from the second position to the first position when the external force is removed,

when the switch portion is switched from the first position to the second position, the hooking mechanism is switchable from the use position to the mounting position; when the switch portion is reset from the second position to the first position, the hooking mechanism is switched from the mounting position to the use position.

Scheme 2. The curtain opening and closing device according to scheme 1, wherein the first bracket comprises a first slider and a first support rod, the top surface of the housing is provided with an extending hole, the lower end of the first support rod is fixedly connected to the first slider, the upper end of the first support rod extends out of the extending hole, the first driven wheel is rotatably arranged at the upper end of the first support rod,

the first sliding block is slidably disposed in the housing and disposed corresponding to the first sliding hole.

Scheme 3. The window curtain opening and closing device according to scheme 2, wherein the second bracket comprises a second slider and a second supporting rod, the lower end of the second supporting rod is fixedly connected to the second slider, the upper end of the second supporting rod extends out of the extending hole, the second driven wheel is rotatably arranged at the upper end of the second supporting rod,

the second sliding block is slidably disposed in the housing and is disposed corresponding to the second sliding hole.

Scheme 4. The device that opens and shuts of (window) curtain according to scheme 3, characterized in that, the mechanism that articulates still includes first elastic component, first elastic component with first slider and second slider connection respectively, first elastic component is set up to store elastic potential energy when the mechanism that articulates is in the mounted position.

Scheme 5. The device that opens and shuts of (window) curtain according to scheme 4, its characterized in that, first slider is provided with first mount pad in the side near the second slider, the second slider is provided with the second mount pad in the side near first slider, first elastic component is compression spring, compression spring's both ends cup joint respectively on first mount pad and the second mount pad.

Scheme 6. The device that opens and shuts of (window) curtain according to any one of schemes 3 to 5, its characterized in that, the mechanism that articulates still includes the housing, the housing sets up in the shell, the top of housing is provided with first via hole and second via hole, be formed with first spout and second spout in the housing, first branch stretches out from first via hole, second branch stretches out from the second via hole, first slider slidable sets up in first spout, second slider slidable sets up in the second spout.

Solution 7. The device for opening and closing a window blind according to solution 6, wherein the housing comprises an upper housing and a lower housing which are fastened to each other,

an upper convex structure extending along the axial direction of the driving wheel is arranged in the middle of the inner top surface of the upper shell, the upper convex structure divides the upper shell into a first upper half groove and a second upper half groove,

the middle part of the inner bottom surface of the lower shell is provided with a lower convex structure extending along the axial direction of the driving wheel, the lower convex structure divides the lower shell into a first lower half groove and a second lower half groove,

the first upper half groove and the first lower half groove are encircled to form the first sliding groove, and the second upper half groove and the second lower half groove are encircled to form the second sliding groove.

The curtain opening and closing device according to claim 8, wherein a first limiting structure and a second limiting structure are formed between the upper protruding structure and the lower protruding structure, the side of the first spring mounting seat, which is away from the first elastic piece, can abut against the first limiting structure, and the side of the second spring mounting seat, which is away from the first elastic piece, can abut against the second limiting structure.

Scheme 9. The device of opening and closing curtains according to scheme 2, characterized in that the switch portion comprises a first splint and a second elastic member, a first slide hole is opened on a first side of the housing,

the first clamping plate is pivotally arranged at the first side face, the second elastic piece is arranged to store elastic potential energy when the first clamping plate is pivoted from a position closed relative to the shell to a position opened relative to the shell under the action of external force, and release the elastic potential energy after the external force is removed so as to ensure that the first clamping plate is pivoted from the position opened relative to the shell to the position closed relative to the shell,

wherein when the first clamping plate pivots from an open position relative to the housing to a closed position relative to the housing, the inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole.

Scheme 10. The device for opening and closing curtains according to the scheme 3, wherein the opening and closing part comprises a first clamping plate, a second elastic member and a third elastic member, a first side surface of the housing is provided with a first sliding hole, a second side surface of the housing, which is opposite to the first side surface, is provided with a second sliding hole,

the first clamping plate is pivotally arranged on the first side face, the second elastic piece is arranged to store elastic potential energy when the first clamping plate pivots from a position closed relative to the shell to a position opened relative to the shell under the action of external force, the elastic potential energy is released after the external force is removed, and therefore the first clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, wherein when the first clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, the inner side face of the first clamping plate pushes the first bracket to slide towards the first sliding hole,

the second clamping plate is pivotally arranged on the second side face, the third elastic piece is arranged to store elastic potential energy when the second clamping plate pivots from a position closed relative to the shell to a position opened relative to the shell under the action of external force, the elastic potential energy is released after the external force is removed, and therefore the second clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, wherein when the second clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, the inner side face of the second clamping plate pushes the second bracket to slide towards the second sliding hole.

Scheme 11. The device for opening and closing a window curtain according to scheme 10, wherein a first shaft seat is provided on an inner side surface of the first clamping plate, a first shaft hole is provided on the first shaft seat, a second shaft seat is provided on the first side surface, a second shaft hole is provided on the second shaft seat, the first shaft hole and the second shaft hole are connected through a first rotating shaft,

the inner side surface of the second clamping plate is provided with a third shaft seat, the third shaft seat is provided with a third shaft hole, the second side surface is provided with a fourth shaft seat, the fourth shaft seat is provided with a fourth shaft hole, and the third shaft hole is connected with the fourth shaft hole through a second rotating shaft.

Scheme 12. The device for opening and closing a window curtain according to scheme 11, wherein a first receiving groove is formed in an inner side surface of the first clamping plate, the first shaft holder is disposed in the first receiving groove, a first through groove is formed in the first side surface, the second shaft holder is disposed in the first through groove, and after the device is mounted, the first shaft holder is disposed in the first through groove,

the second containing groove is formed in the inner side face of the second clamping plate, the second shaft seat is arranged in the second containing groove, a second through groove is formed in the second side face, the fourth shaft seat is arranged in the second through groove, and after the installation is completed, the third shaft seat is located in the second through groove.

The curtain opening and closing device according to the claim 13, wherein the first side surface is located below the second shaft hole, and the second side surface is located below the fourth shaft hole, and the first side surface and the second side surface are gradually narrowed from top to bottom along the vertical direction; and/or

The lower part of the outer side surface of the first clamping plate is provided with a first shallow groove, and the lower part of the outer side surface of the second clamping plate is provided with a second shallow groove.

Solution 14. The window shade opening and closing apparatus according to solution 2, wherein the opening and closing part includes a first button and a fourth elastic member,

the first button is elastically arranged on the first side face of the shell through the fourth elastic piece, the fourth elastic piece is arranged to store elastic potential energy when the first button is pressed down under the action of external force, and when the first button is pressed down, the inner side face of the first button pushes the first support to slide towards the first sliding hole.

Scheme 15. The device that opens and shuts of (window) curtain according to scheme 3, characterized in that, the switch portion includes first button, second button, fourth elastic component and fifth elastic component,

the first button is elastically arranged on the first side surface of the shell through the fourth elastic piece, the fourth elastic piece is arranged to store elastic potential energy when the first button is pressed down under the action of external force, when the first button is pressed down, the inner side surface of the first button pushes the first support to slide towards the first sliding hole,

the second button is elastically arranged on the second side face of the shell through the fifth elastic piece, the fifth elastic piece is arranged to store elastic potential energy when the second button is pressed down under the action of external force, and when the second button is pressed down, the inner side face of the second button pushes the second support to slide towards the second sliding hole.

Drawings

The curtain opening and closing device of the present application will be described with reference to the accompanying drawings. In the drawings:

fig. 1 is a view (one) illustrating an assembly process of the window covering opening and closing apparatus of the present application applied to a U-shaped rail;

fig. 2 is a view (ii) showing an assembly process of the window covering opening and closing device applied to the U-shaped rail;

FIG. 3 is an exploded view of the curtain opening and closing device of the present application;

FIG. 4 is an exploded view of the hooking mechanism of the window covering opening and closing device of the present application;

FIG. 5A is a view showing the structure of the hanging mechanism of the opening/closing device of the present invention in the installation position;

FIG. 5B is a top view of the hanging mechanism of the window covering opening and closing device of the present application in an installed position;

FIG. 6A is a structural view of the hanging mechanism of the opening/closing device of the present application in the position of use;

FIG. 6B is a top view of the hanging mechanism of the window covering opening and closing device of the present application in a use position;

fig. 7A is a view (one) illustrating an assembly process of the curtain opening and closing device of the present application applied to an i-shaped rail;

fig. 7B is a view illustrating an assembly process of the curtain opening and closing device of the present application applied to an i-shaped rail (ii);

fig. 8 is a structural view of a second embodiment in which the curtain opening and closing device of the present invention is applied to a U-shaped rail.

List of reference numerals

1. A housing; 11. a front housing; 111. a first gap; 112. a first slide hole; 113. a second shaft base; 114. a first through groove; 115. a first embedding hole; 12. a rear housing; 121. a second gap; 122. a second slide hole; 124. a second through groove;

2. driving the roller assembly;

3. a power supply component; 31. a battery; 32. a circuit board;

4. a switch section; 41. a first splint; 411. a first body; 4111. a first shaft seat; 4112. a first accommodating groove; 412. a first cover body; 4121. a first shallow groove; 42. a second splint; 421. a second body; 4211. a third shaft seat; 4212. a second accommodating groove; 422. a second cover body; 43. a third elastic member; 44. a first button;

5. a hanging mechanism; 51. a housing; 511. an upper housing; 5111. an upper convex structure; 5112. a first upper half tank; 5113. a second upper half tank; 5114. a first upper limiting plate; 5115. a first via hole; 5116. a second via hole; 512. a lower housing; 5121. a lower projection structure; 5122. a first lower half tank; 5123. a second lower half tank; 5124. a first lower limiting plate; 5125. a second lower limiting plate; 52. a first bracket; 521. a first slider; 5211. a first mounting seat; 522. a first strut; 53. a second bracket; 531. a second slider; 5311. a second mounting seat; 532. a second support bar; 54. a first driven wheel; 55. a second driven wheel; 56. a first elastic member;

61. a second rotating shaft;

7. a U-shaped track;

8. an I-shaped rail.

Detailed Description

Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principles of the present application, and are not intended to limit the scope of the present application.

It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

Referring first to fig. 1 and 2, a general embodiment of the window covering opening and closing device of the present application will be described with reference to a U-shaped rail as a window covering rail.

As shown in fig. 1 to 2, in order to solve the problem of inconvenient installation of the conventional curtain opening and closing device, the curtain opening and closing device of the present application includes a housing 1, a driving roller assembly 2, a power supply assembly 3, a hanging mechanism 5, and a switch portion 4. The top of the housing 1 is formed with a through hole, and the driving roller assembly 2 includes a driving mechanism and a driving wheel (both not shown in the figure), the driving mechanism is used for driving the driving wheel to rotate, the driving wheel is installed in the housing 1, and a part of the driving wheel extends out through the through hole. A power supply assembly 3 is provided within the housing 1 for supplying power to the drive mechanism.

The two hitch mechanisms 5 are provided and are provided on both sides of the drive wheel in the rolling direction of the drive wheel (i.e., the extending direction of the U-shaped rail 7), each hitch mechanism 5 includes a first bracket 52, a second bracket 53, a first driven wheel 54 and a second driven wheel 55, the first driven wheel 54 is rotatably provided on the first bracket 52, the second driven wheel 55 is rotatably provided on the second bracket 53, at least one of the first bracket 52 and the second bracket 53 is provided so as to be capable of reciprocating movement in the axial direction of the drive wheel (i.e., the horizontal direction perpendicular to the extending direction of the U-shaped rail 7), and this movement enables the hitch mechanism 5 to be switched between the mounting position and the use position.

The switch part 4 is arranged on the shell 1 and is in transmission connection with the hanging mechanism, and the switch part 4 is arranged to be switched from a first position to a second position under the action of external force and reset from the second position to the first position when the external force is removed. When the switch part 4 pivots from the first position to the second position, the hanging mechanism 5 can be switched from the use position to the installation position; when the switch unit 4 is returned from the second position to the first position, the hook mechanism 5 can be switched from the mounting position to the use position.

The utility model provides a (window) curtain device that opens and shuts is under quiescent condition, and switch portion 4 is located the primary importance, and articulate mechanism 5 and be in the position of use. When the hook mechanism 5 is used, an external force is first applied to the switch unit 4 to switch the switch unit 4 from the first position to the second position, and at the same time, the hook mechanism 5 is switched from the use position to the installation position. Then, the curtain opening and closing device is moved to the position to be installed, the external force applied to the opening and closing part 4 is removed, the opening and closing part 4 is reset to the first position from the second position, the hanging mechanism 5 is switched to the using position from the installing position, and thus, the device is hung on the U-shaped track 7. After the U-shaped rail 7 is hung, the driving wheel in the driving roller component 2 is pressed against the lower side surface of the U-shaped rail 7, the driving wheel rotates under the driving of the driving mechanism, and walking on the U-shaped rail 7 is realized through the friction force between the driving wheel and the U-shaped rail 7. In the walking process, the curtain opening and closing device drives the curtain hook on the U-shaped rail 7 to move, so that the automatic opening and closing of the curtain are realized.

As can be seen from the above description, the curtain opening and closing device of the present application has the advantage of convenient installation by providing the opening and closing part 4. Specifically, the switch part 4 is switched from the first position to the second position under the action of external force, so that the hooking mechanism 5 can be switched from the use position to the installation position, the curtain opening and closing device can be conveniently moved to the position of the curtain rail to be installed at the moment, then when the external force is removed, the switch part 4 is reset from the second position to the first position, the hooking mechanism 5 is switched from the installation position to the use position, and the curtain opening and closing device can be installed on the curtain rail. In other words, the installation of the device can be realized through the simple action of the switch, and the installation process of the curtain opening and closing device is greatly simplified.

A preferred embodiment of the curtain opening and closing device of the present invention will be described with further reference to fig. 1 to 6B.

Referring first to fig. 3, the housing 1 includes a front shell 11 and a rear shell 12, and the front shell 11 and the rear shell 12 are mounted together by clipping, screwing, or the like. A gap (not shown) is formed at the top of each of the front shell 11 and the rear shell 12, and after the front shell and the rear shell are installed, a cavity is formed in the housing 1, and through holes are formed by surrounding the two gaps. The driving roller assembly 2 comprises a driving mechanism and a driving wheel, the driving mechanism is a motor, and an output shaft of the motor is in transmission connection with the driving wheel, such as being directly connected with the driving wheel or being connected with the driving wheel through a transmission assembly. The driving roller assembly 2 is arranged in the cavity of the shell 1, and after the driving roller assembly is arranged, the driving wheel part extends out of the through hole and can rotate relative to the shell 1. It should be noted that the form and principle of the driving roller assembly 2 in the prior art are already common, the specific form of the driving roller assembly 2 in the present application is not limited, and any driving roller assembly 2 that can satisfy the installation condition of the present application can be applied to the present application.

With continued reference to fig. 3, the power supply module 3 includes a battery 31 and a circuit board 32, the battery 31 may be a lithium battery 31, which is connected to the circuit board 32, the circuit board 32 is connected to the motor, the battery 31 is used for supplying power to the motor, and the circuit board 32 is used for controlling the start and stop of the motor. In the present application, the receiving method of the start/stop command of the motor is not limited, and the start/stop command may be sent by a user using a device connected to the circuit board 32 in communication, such as a remote controller or a mobile terminal, or may be sent by a physical button provided in the housing 1, or may be sent by a button or a switch provided at any indoor position and connected to the circuit board 32 in communication. The communication connection with the circuit board 32 may be wired communication or wireless communication, and the wireless communication may be, but not limited to, bluetooth, infrared, wiFi, zigBee, and the like. The mobile terminal may be, for example, a mobile phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or any combination thereof. Of course, when any of the above connection methods is adopted, corresponding modules need to be carried on the circuit board 32, and the arrangement and connection methods of the modules are conventional technologies in the field, and therefore, detailed description is omitted.

Still referring to fig. 3, the switch portion 4 comprises two clamping plates, in this application a first clamping plate 41 and a second clamping plate 42, which first clamping plate 41 and second clamping plate 42 are pivotally arranged at a first side and a second side of the housing 1, which are opposite to each other, respectively, via a rotating shaft. In the present application, the first clamping plate 41 is pivotally connected to the front side of the front case 11 by a first rotating shaft, and the second clamping plate 42 is pivotally connected to the rear side of the rear case 12 by a second rotating shaft 61.

Specifically, taking the first clamp plate 41 as an example, the first clamp plate is formed by combining the first body 411 and the first cover 412 by clamping, screwing, and the like, a first shallow groove 4121 is formed at the lower part of the outer side surface of the first cover 412 (i.e., the side surface away from the housing 1 after installation), and the first shallow groove 4121 is in a strip shape and extends along the width direction (i.e., the left-right direction in fig. 3) of the first cover 412. A first receiving groove 4112 is formed in an inner side surface (i.e., a side surface facing the housing 1 after being installed) of the first body 411, the first receiving groove 4112 is a substantially rectangular groove, two ends of the middle portion of the first receiving groove 4112 are respectively provided with a first shaft base 4111, and each first shaft base 4111 is provided with a first shaft hole (not shown). A first through groove 114 is formed in the middle of the front side surface of the front shell 11, the first through groove 114 extends along the width direction (left-right direction in fig. 3) of the front shell 11, two second shaft seats 113 are arranged in the first through groove 114, and a second shaft hole is formed in each second shaft seat 113. After the installation, the first rotating shaft sequentially passes through the first shaft hole, the second shaft hole and the first shaft hole, and then pivotally connects the first clamping plate 41 and the front housing 11, and the two first shaft seats 4111 are pivotally located in the first through groove 114.

Similarly, the second clamping plate 42 is formed by combining the second body 421 and the second cover 422 by means of clamping, screwing, and the like, and a second shallow groove (not shown in the figure) is formed at the lower part of the outer side surface of the second cover 422 (i.e. the side surface of the second cover which is away from the housing 1 after installation), and the second shallow groove is in a long strip shape and extends along the width direction (i.e. the left-right direction in fig. 3) of the second cover 422. A second accommodating groove 4212 is formed in an inner side surface (i.e., a side surface facing the housing 1 after being installed) of the second body 421, the second accommodating groove 4212 is a substantially rectangular groove, two third shaft seats 4211 are respectively disposed at two ends of a middle portion of the second accommodating groove 4212, and each third shaft seat 4211 is provided with a third shaft hole (not shown). A second through groove 124 is formed in the middle of the rear side surface of the rear shell 12, the second through groove 124 extends along the width direction (left-right direction in fig. 3) of the rear shell 12, two fourth shaft seats (not shown in the figure) are arranged in the second through groove 124, and a fourth shaft hole is formed in each fourth shaft seat. After the installation, the second rotating shaft 61 sequentially passes through the third shaft hole, the fourth shaft hole and the third shaft hole, and then the second clamping plate 42 is pivotally connected with the rear shell 12, and the two third shaft seats 4211 are pivotally located in the second through groove 124.

The front side surface of the front shell 11 located below the second shaft hole and the rear side surface of the rear shell 12 located below the fourth shaft hole are gradually narrowed from top to bottom in the vertical direction (i.e., in the up-down direction in fig. 5), and are respectively in arc transition with the bottom surface.

Referring to fig. 1 and 2, when the switch unit 4 is in the first position, as viewed from the side of the apparatus, the portion of the first clamping plate 41 located above the first shaft seat 4111 and the portion of the second clamping plate 42 located above the third shaft seat 4211 form a "collet" portion of the clamping, the portion of the first clamping plate 41 located below the first shaft seat 4111 and the portion of the second clamping plate 42 located below the third shaft seat 4211 form a "handle" portion of the clamping, and when an external force is applied to the "handle", the first clamping plate 41 and the second clamping plate 42 pivot about the first rotating shaft and the second rotating shaft 61 respectively to an open position (i.e., a second position) relative to the housing 1, and the "collet" portion opens relative to the top of the housing 1, and the front side of the front housing 11 and the rear side of the rear housing 12 are respectively received in the first receiving groove 4112 and the second receiving groove 4212. When the external force is removed, the first and second clamping plates 41 and 42 pivot about the first and second pivot axes 61, respectively, to a closed position (i.e., a first position) relative to the housing 1, at which time the "collet" portion is closed relative to the top of the housing 1.

With continued reference to fig. 3, the window covering opening and closing device further includes a second elastic member (not shown) and a third elastic member 43. Wherein the second elastic member is arranged to store elastic potential energy when the first clamping plate 41 is pivoted from the closed position relative to the housing 1 to the open position relative to the housing 1 by an external force, and to release the elastic potential energy when the external force is removed and thereby pivot the first clamping plate 41 from the open position relative to the housing 1 to the closed position relative to the housing 1. The third elastic element 43 is arranged to store elastic potential energy when the second clamping plate 42 is pivoted from the closed position relative to the housing 1 to the open position relative to the housing 1 under the action of an external force, and to release the elastic potential energy when the external force is removed and thus to pivot the second clamping plate 42 from the open position relative to the housing 1 to the closed position relative to the housing 1. Specifically, the second elastic member and the third elastic member 43 are both torsion springs, and taking the third elastic member 43 shown in fig. 3 as an example, the torsion springs are sleeved on the second rotating shaft 61, and two extending ends of the torsion springs abut against the second accommodating groove 4212 and the rear side surface of the rear shell 12, respectively.

Referring to fig. 3, for each hanging mechanism 5, the top surface of the housing 1 is provided with an extending hole, the first side surface is provided with a first sliding hole 112, and the second side surface is provided with a second sliding hole 122. Specifically, two first openings 111 are opened on the top surface of the front shell 11, two second openings 121 are opened on the top surface of the rear shell 12, and after the front shell is mounted, the two first openings 111 and the two second openings 121 enclose to form two extending holes. Two first sliding holes 112 are formed in the upper portion of the front side of the front shell 11, the first sliding holes 112 are rectangular long holes, and the two first sliding holes 112 are arranged side by side along the width direction of the front shell 11. Two second sliding holes 122 are formed in the upper portion of the rear side of the rear housing 12, the second sliding holes 122 are also rectangular long holes, and the two second sliding holes 122 are arranged side by side along the width direction of the rear housing 12.

Referring to fig. 4, 5A and 5B, the hitch mechanism 5 includes a housing 51, a first bracket 52, a second bracket 53, a first driven wheel 54, a second driven wheel 55, and a first elastic member 56.

The housing 51 is arranged in the housing 1 in a clamping, screwing or abutting mode, a first via hole 5115 and a second via hole 5116 are arranged at the top of the housing 51, and a first sliding groove and a second sliding groove are formed in the housing 51. Specifically, referring to fig. 4, the housing 51 includes an upper housing 511 and a lower housing 512 snap-coupled to each other, and the upper housing 511 and the lower housing 512 are integrally formed, respectively. The middle of the inner top surface of the upper shell 511 is provided with an upper convex structure 5111 extending along the axial direction of the driving wheel, the upper convex structure 5111 divides the upper shell 511 into a first upper half groove 5112 and a second upper half groove 5113, the middle of the inner bottom surface of the lower shell 512 is provided with a lower convex structure 5121 extending along the axial direction of the driving wheel, the lower convex structure 5121 divides the lower shell 512 into a first lower half groove 5122 and a second lower half groove 5123, the first upper half groove 5112 and the first lower half groove 5122 are enclosed to form a first sliding groove, and the second upper half groove 5113 and the second lower half groove 5123 are enclosed to form a second sliding groove.

A first limit structure and a second limit structure are formed between the upper protruding structure 5111 and the in-plane protruding structure 5121. The upper protruding structure 5111 is provided with a first upper limiting plate 5114 and a second upper limiting plate at two ends along the length direction thereof, and the lower protruding structure 5121 is provided with a first lower limiting plate 5124 and a second lower limiting plate 5125 at two ends along the length direction thereof. After the installation, the free end of the first upper limiting plate 5114 abuts against the free end of the first lower limiting plate 5124 to form a first limiting structure, and the free end of the second upper limiting plate abuts against the free end of the second lower limiting plate 5125 to form a second limiting structure.

Referring to fig. 4 and 5A, the first bracket 52 includes a first slider 521 and a first strut 522, a lower end of the first strut 522 is fixedly connected to the first slider 521, an upper end of the first strut 522 is a free end, and the first driven wheel 54 is rotatably disposed at the upper end of the first strut 522. After the assembly is completed, the first slider 521 is slidably disposed in the first sliding groove, and the upper end of the first strut 522 extends out of the first through hole 5115. Similarly, the second bracket 53 includes a second slider 531 and a second support bar 532, the lower end of the second support bar 532 is fixedly connected to the second slider 531, the upper end of the second support bar 532 is a free end, and the second driven wheel 55 is rotatably disposed at the upper end of the second support bar 532. After the assembly is completed, the second slider 531 is slidably disposed in the second sliding groove, and the upper end of the second strut 532 extends out of the second through hole 5116.

Referring to fig. 4, 5A to 6B, the first elastic member 56 is connected to the first slider 521 and the second slider 531, respectively, and the first elastic member 56 is configured to store elastic potential energy when the hitch mechanism 5 is in the mounting position. Specifically, the first slider 521 is provided with a first mounting seat 5211 on a side surface close to the second slider 531, the second slider 531 is provided with a second mounting seat 5311 on a side surface close to the first slider 521, a cylinder is formed on each of the first mounting seat 5211 and the second mounting seat 5311, the first elastic member 56 is a compression spring, and two ends of the compression spring are respectively sleeved on the cylinder of the first mounting seat 5211 and the cylinder of the second mounting seat 5311. After the installation, compression spring, first mount pad 5211 and second mount pad 5311 are located between first limit structure and the second limit structure, when first slider 521 and second slider 531 slide to the inside direction of shell 1 along the shell 1 outside simultaneously, compression spring is compressed thereby to store elastic potential energy, can make first slider 521 and second slider 531 slide to shell 1 outside respectively during this elastic potential energy release, and when compression spring released elastic potential energy, one side butt in first limit structure that first mount pad 5211 deviates from compression spring, one side butt in second limit structure that second mount pad 5311 deviates from compression spring.

Referring to fig. 3, the two hooking mechanisms 5 are symmetrically installed in the housing 1 compared to the rotation shaft of the driving wheel, after the two hooking mechanisms are installed, the first through hole 5115 and the second through hole 5116 correspond to the protruding hole, the upper end of the first rod 522 protrudes from the protruding hole, the upper end of the second rod 532 protrudes from the protruding hole, the front end of the first slider 521 is disposed corresponding to the first sliding hole 112 and can protrude or retract from the first sliding hole 112, and the rear end of the second slider 531 is disposed corresponding to the second sliding hole 122 and can protrude or retract from the second sliding hole 122.

Next, the installation process of the curtain opening and closing device according to the present invention will be described with reference to fig. 1 to 2 and 5A to 6B.

As shown in fig. 2, fig. 6A and fig. 6B, when the curtain opening and closing device is in a static state, the switch portion 4 is in a first position, at this time, the first clamping plate 41 and the second clamping plate 42 are respectively tightly attached to the front side surface of the front shell 11 and the rear side surface of the rear shell 12 under the action of the torsion spring, the first slider 521 is located at the first sliding hole 112 under the abutting pressure of the first clamping plate 41, the second slider 531 is located at the second sliding hole 122 under the abutting pressure of the second clamping plate 42, at this time, the compression spring stores elastic potential energy, and the hanging mechanism 5 is in a use position.

As shown in fig. 1, 5A and 5B, when the curtain opening and closing device needs to be installed on the U-shaped rail 7, a user first pinches the shallow groove portions of the two clamping plates with a single hand and applies force to the first clamping plate 41 and the second clamping plate 42 at the same time, the two clamping plates pivot to the opened position relative to the housing 1 along the respective pivot shafts under the force, and the two torsion springs respectively store elastic potential energy. Meanwhile, the first slider 521 slides along the first sliding slot to the outside of the first sliding hole 112 and extends from the first sliding hole 112 under the releasing action of the elastic potential energy of the compression spring, the second slider 531 slides along the second sliding slot to the outside of the second sliding hole 122 and extends from the second sliding hole 122 under the releasing action of the elastic potential energy of the compression spring, the first driven wheel 54 and the second driven wheel 55 approach each other and are approximately on the same straight line along the length direction of the U-shaped rail 7, that is, the hitching mechanism 5 is switched from the use position to the installation position. At this time, the user may lift the window covering opening and closing apparatus to a position where the U-shaped rail 7 is to be installed, so that the first driven pulley 54 and the second driven pulley 55 enter the inside of the rail through a gap on the bottom surface of the U-shaped rail 7.

Referring next to fig. 2, 6A and 6B, after lifting to the to-be-installed position, the user removes the force applied to the two clamping plates, and the first clamping plate 41 and the second clamping plate 42 are pivotally pivoted to the closed position relative to the housing 1 along the respective pivot shafts by the torsion springs. Meanwhile, the first clamping plate 41 presses the first slider 521 so that the first slider 521 slides towards the inside of the first sliding hole 112 along the first sliding groove, the second clamping plate 42 presses the second slider 531 so that the second slider 531 slides towards the inside of the second sliding hole 122 along the second sliding groove, until the first clamping plate 41 and the second clamping plate 42 are respectively tightly attached to the front side surface of the front shell 11 and the rear side surface of the rear shell 12, the first driven wheel 54 and the second driven wheel 55 are away from each other and are respectively pressed against one guide rail inside the U-shaped rail 7, that is, the hanging mechanism 5 is switched from the installation position to the use position, and at this time, the curtain opening and closing device is hung on the i-shaped rail 8. In addition, the driving wheel is pressed against the lower side surface of the U-shaped rail 7 at the moment, and the installation is completed.

It will be understood by those skilled in the art that although the above-mentioned embodiment does not describe in detail how the driving roller assembly 2 is pressed against the lower side of the U-shaped rail 7, this does not mean that the present application is not applicable. On the contrary, after the curtain opening and closing device is installed in the prior art, there are many different schemes for how the driving roller assembly 2, especially the driving wheel, is pressed to the lower part of the U-shaped rail 7, and those skilled in the art can flexibly select the driving roller assembly based on actual products. For example, the driving wheel can be pressed against the U-shaped rail 7 by arranging a spring/elastic sheet below the driving roller assembly 2; alternatively, the hooking mechanism 5 and the housing 1 may be elastically connected to each other.

The setting mode has the advantages that: through setting up two splint for the (window) curtain device convenient to use that opens and shuts of this application, the user only need just like using ordinary "clip" the operation, can realize the installation and the dismantlement of device, simplifies the installation of (window) curtain device that opens and shuts greatly. In addition, the first clamping plate 41 and the second clamping plate 42 are symmetrically arranged on two sides of the housing 1, so that the curtain opening and closing device has the advantages of uniform stress, stable operation, firm clamping and the like after being installed.

By arranging the first bracket 52 and the second bracket 53 to be slidable, the first driven wheel 54 and the second driven wheel 55 can be moved, so that the force applied by a user is reduced, and the installation is easier.

By dividing the housing 51 into the first and second sliding grooves using the upper and lower projections 5111 and 5121, the movement stability of the first and second brackets 52 and 53 can be improved, and the assembly and disassembly accuracy of the device can be ensured.

Through setting up first elastic component 56 for when switch portion 4 pivot to the second position, articulate mechanism 5 and can switch to the mounted position automatically, and can also carry out certain degree to first splint 41 and second splint 42 and support and press, the opening of auxiliary switch portion 4 saves the user application of force.

Through forming first limit structure and second limit structure in housing 51, can carry on spacingly to the removal of first support 52 and second support 53 for compression spring stores certain elastic potential energy, prevents that compression spring from breaking away from the mount pad.

Through set up first storage tank 4112 and second storage tank 4212 respectively in first splint 41 and second splint 42 inboard, and set up first axle seat 4111 at first storage tank 4112, third axle seat 4211 sets up at second storage tank 4212, and set up first logical groove 114 and second logical groove 124 respectively in the both sides of shell 1, set up second axle seat 113 and fourth axle seat respectively in first logical groove 114 and second logical groove 124, can be at the whole thickness that reduces the device, convenience of customers installs and removes the operation.

Through the part that is located the first side of shell 1 under the second shaft hole, the part that is located the fourth shaft hole of the second side of shell 1 under, narrow gradually from top to bottom along vertical direction, the setting of deuterogamy storage tank can reserve bigger space for the pivot of first splint 41 and second splint 42 to make two splint have bigger angle of opening, easy to assemble.

The first shallow groove 4121 and the second shallow groove 4121 are formed at the lower portions of the outer sides of the first clamping plate 41 and the second clamping plate 42, so that force application is facilitated for a user, and operation difficulty is reduced.

By arranging the second elastic piece and the third elastic piece 43, the two clamping plates can automatically rebound, and the mounting difficulty is reduced; and after the installation, two elastic components can improve the stability of device, avoid two splint not hard up.

It should be noted that the above preferred embodiments are only used for illustrating the principle of the present application, and are not intended to limit the protection scope of the present application. Without departing from the principles of the present application, those skilled in the art can adjust the setting manner, so that the present application can be applied to more specific application scenarios.

For example, although the above embodiment has been described with two clamp plates provided in conjunction with the switch unit 4, and the first bracket 52 and the second bracket 53 of the hitch mechanism 5 are both movable, this is merely a preferred embodiment of the present application, and those skilled in the art can adjust the above embodiment without departing from the principle of the present application, as long as the adjusted technical solution can realize that "when the switch unit 4 is switched from the first position to the second position, the hitch mechanism 5 can be switched from the use position to the installation position; when the switch unit 4 is returned from the second position to the first position, the operation mode of the hooking mechanism 5 may be switched from the mounting position to the use position.

For example, in one embodiment, the switch portion 4 may be provided with only one clamping plate, and accordingly, the first bracket 52 of the hitching mechanism 5 can move back and forth along the axial direction of the driving wheel, the second bracket 53 is fixedly arranged relative to the housing 1, such as being integrally formed with the housing 1, or being clamped inside the housing 1, and the first elastic member 56 can still be arranged between the two clamping plates, or can also be arranged between the first clamping plate 41 and the housing. At this time, when the clamping plate pivots to the open position relative to the housing 1, the first slider 521 slides to the outside of the first sliding hole 112 under the elastic force of the first elastic member 56, so as to realize the switching of the hanging mechanism 5 from the use position to the installation position, and when the clamping plate pivots to the closed position relative to the housing 1, the inner side of the clamping plate presses the first slider 521, so that the first slider 521 slides to the inside of the first sliding hole 112 along the first sliding groove, so as to realize the switching of the hanging mechanism 5 from the installation position to the use position. Of course, in the alternative embodiment, two clamping plates may be provided at the same time, but only one of the two clamping plates is used in cooperation with the first bracket 52, provided that the first bracket 52 is slidable.

In another alternative embodiment, the bracket and the clamping plate can be in transmission connection through a transmission piece, so that the bracket can be driven to reciprocate by the pivoting of the clamping plate. Taking the first clamping plate 41 and the first bracket 52 as an example, a hinge hole may be disposed on the first clamping plate 41, a second hinge hole is correspondingly disposed on the first bracket 52, the first hinge hole is connected with the second hinge hole through a transmission rod, and two ends of the transmission rod are respectively hinged to the first hinge hole and the second hinge hole. In this way, during the pivoting process of the first clamping plate 41, the driving rod drives the first sliding block 521 to slide back and forth, so as to switch the hanging mechanism 5 between the installation position and the use position.

As another example, in another alternative embodiment, the hitching mechanism 5 may be disposed outside the housing 1, such as a rail disposed on the top of the housing 1, and the first bracket 52 may be slidably disposed on the rail, instead of being disposed inside the housing 1.

For example, in a possible embodiment, although the above embodiment is described in the case that the housing 1 includes the front shell 11 and the rear shell 12, this structure form is not exclusive, and a person skilled in the art may adjust the specific structure of the housing 1 so that the adjusted technical solution is suitable for a more specific application scenario. For example, the housing 1 may be formed in an integrated structure, a vertically divided structure, or the like.

For another example, in an alternative embodiment, the pivotal arrangement of the two jaws is not exclusive, and the skilled person can adjust the specific arrangement provided that the two jaws are able to pivot relative to the housing 1. For example, two clamping plates can be pivotably arranged on opposite sides of the housing 1 by means of one and the same pivot axis. Specifically, taking the orientation shown in fig. 3 as an example, a common shaft seat may be provided in the middle of the upper edge of each of the left and right sides of the housing 1, and then the shaft seats of the two clamping plates located on the same side are pivotally connected to the common shaft seat. More specifically, the first shaft holder 4111 and the third shaft holder 4211 on the left side of fig. 3 are pivotally connected to a common shaft holder provided in the middle of the upper edge of the left side surface of the housing 1 through one stub shaft, and the first shaft holder 4111 and the third shaft holder 4211 on the right side of fig. 3 are pivotally connected to a common shaft holder provided in the middle of the upper edge of the right side surface of the housing 1 through the other stub shaft.

For another example, in another alternative embodiment, the above embodiment is described with the power module 3 provided in the housing 1, but this embodiment is not limited to this, and a person skilled in the art can select whether or not the power module 3 is provided, and can adjust the specific arrangement of the power module 3. For example, in some application scenarios, the power supply component 3 may not be provided in the curtain opening and closing device, but an external power supply may be used to supply power to the driving mechanism, for example, a charger, an external solar cell 31 board, etc., and at this time, only an interface needs to be correspondingly provided on the housing 1. For another example, in the case of the power module 3, the power module 3 may include a circuit board 32 and a battery 31, and the battery 31 is used for accommodating the dry battery 31.

For another example, in another alternative embodiment, the first elastic member 56 may be a plate spring or an elastic rubber block instead of a compression spring, and such a specific form of the first elastic member 56 may be replaced without departing from the principles of the present application.

For another example, in another alternative embodiment, the second elastic member and the third elastic member 43 may be replaced with other members in addition to the torsion spring. In a possible embodiment, one or both of the second elastic member and the third elastic member 43 may be a compression spring, and both ends of the compression spring respectively abut between the clamping plate and the housing 1.

For another example, on the basis of ensuring that the window covering opening and closing apparatus has the housing 1, the driving roller assembly 2 and the opening and closing part 4, and the hitch mechanism 5 has the first bracket 52, the second bracket 53, the first driven wheel 54 and the second driven wheel 55, other components or structures in the above-described embodiment may be selectively modified or deleted by those skilled in the art. For example, the housing 51 of the hanging mechanism 5 may be omitted, the first elastic member 56 may be omitted, and the first receiving groove 4112, the second receiving groove 4212, the first shallow groove 4121, the second shallow groove, the narrowing of the side surface of the housing 1, and the like may be modified or omitted.

Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.

Referring to fig. 7A and 7B, the curtain opening and closing device of the present invention will be briefly described as applied to the i-shaped rail 8.

As shown in fig. 7A and 7B, unlike the above preferred embodiment, the present embodiment adjusts the specific arrangement of the hooking mechanism 5 so that the curtain opening and closing device can be applied to the i-shaped rail 8.

Specifically, as shown in fig. 7A and 7B, in the hitch mechanism 5, both the first bracket 52 and the second bracket 53 can still reciprocate in the axial direction of the drive wheel. In the present embodiment, the first driven wheel 54 and the second driven wheel 55 are disposed in a state of facing each other regardless of whether the hitch mechanism 5 is in the mounting position or the use position. In the above embodiment, however, the first driven wheel 54 and the second driven wheel 55 are always in a state of being away from each other. In the actual manufacturing process, the two driven wheels can be always arranged oppositely only by adjusting the positions of the first support rod 522 and the second support rod 532 on the first slider 521 and the second slider 531 and correspondingly adjusting the positions of the first through hole 5115, the second through hole 5116 and the extending hole.

The following is a brief description of the installation process of the curtain opening and closing device in the present embodiment. As shown in fig. 7A, when an external force is applied to pivot the first clamping plate 41 and the second clamping plate 42 relative to the housing 1 to the opened position, the first slider 521 and the second slider 531 slide outward of the first sliding hole 112 and the second sliding hole 122, respectively, under the elastic force of the first elastic member 56, and the first driven wheel 54 and the second driven wheel 55 move away from each other, that is, the hitch mechanism 5 is switched from the use position to the mounting position. At this time, the user may lift the curtain opening and closing device to the position of the i-shaped rail 8 to be installed, so that the bottom surface of the i-shaped rail 8 may enter the space between the first driven wheel 54 and the second driven wheel 55. As shown in fig. 7B, when the external force is removed, the first clamping plate 41 and the second clamping plate 42 pivot to the closed position relative to the housing 1, the first clamping plate 41 presses the first slider 521 so that the first slider 521 slides along the first sliding slot toward the inside of the first sliding hole 112, the second clamping plate 42 presses the second slider 531 so that the second slider 531 slides along the second sliding slot toward the inside of the second sliding hole 122, the first driven wheel 54 and the second driven wheel 55 approach each other and respectively press against one of the guide rails at the bottom of the i-shaped rail 8, that is, the hanging mechanism 5 is switched from the installation position to the use position, and at this time, the curtain opening and closing device is hung on the i-shaped rail 8, and the installation is completed.

Next, referring to fig. 8, another arrangement of the switch unit of the present application will be briefly described.

As shown in fig. 8, unlike the above preferred embodiment, the switch part 4 is in the form of two buttons, in this embodiment, there are two buttons, namely, a first button 44 and a second button (not shown), the first button 44 is embedded in a first embedding hole 115 formed in the front side surface of the front housing 11 through a fourth elastic member, and the first button 44 partially extends into the front housing 11. The second button is embedded in a second embedding hole provided in the rear side surface of the rear case 12 through a fifth elastic member, and the second button portion extends into the inside of the rear case 12. The fourth elastic member is configured to store elastic potential energy when the first button 44 is pressed under the external force, and when the external force is removed, the elastic potential energy is released and drives the first button 44 to return to the initial position. Similarly, the fifth elastic element is configured to store elastic potential energy when the second button is pressed under the action of external force, and when the external force is removed, the elastic potential energy is released and drives the second button to reset to the initial position. In other words, the initial positions of the two buttons in the no-external-force state are the first positions of the switch section 4, and the positions where the two buttons are pressed are the second positions of the switch section 4.

In this embodiment, the fourth elastic member and the fifth elastic member may be compression springs or elastic rubber blocks.

In the above arrangement, the arrangement of the hitch mechanism 5 is also slightly different from the above preferred embodiment. Specifically, the hitch mechanism 5 still uses the same components as the preferred embodiment described above, except that when the hitch mechanism 5 is in the installed position, the first elastic member 56 is compressed to store elastic potential energy, and the driven wheels are in a state of approaching each other. In other words, when the switch portion 4 moves from the first position to the second position, that is, the two buttons are pressed down by the external force, the inner side surfaces of the two buttons push the two sliding blocks to slide into the sliding grooves respectively, the two driven wheels approach each other by the sliding, and at this time, the first elastic member 56 is compressed to store elastic potential energy, and the hanging mechanism 5 is located at the installation position. When the external force removing switch part 4 is reset from the second position to the first position, that is, the external force removing two buttons are jacked up under the action of the fourth elastic member and the fifth elastic member, the two sliders slide outward the sliding grooves respectively under the releasing action of the elastic potential energy of the first elastic member 56 and are abutted against the two buttons respectively, and at the moment, the first elastic member 56 can store small elastic potential energy to keep the position between the two sliders relatively fixed. Of course, the two sliders may not abut against the inner side surface of the button, and the first up-link button 56 is in a non-elastic potential energy state.

In the above arrangement, when the external force is applied to press the first button 44 and the second button, the first slider 521 and the second slider 531 slide in the first sliding slot and the second sliding slot respectively under the pushing of the first button 44 and the second button, and the first driven wheel 54 and the second driven wheel 55 approach each other, that is, the hanging mechanism 5 is switched from the use position to the installation position, and the first elastic member 56 stores elastic potential energy. At this time, the user can lift the window covering opening and closing apparatus to the position of the U-shaped rail to be installed, so that the first driven pulley 54 and the second driven pulley 55 enter the gap at the bottom of the U-shaped rail. When the external force is removed, the first button 44 and the second button bounce outward of the housing 1 under the release of the elastic potential energy of the compression spring, the first slider 521 slides outward along the first sliding slot under the release of the elastic potential energy of the first elastic member 56, the second slider 531 slides outward along the second sliding slot under the release of the elastic potential energy of the first elastic member 56, the first driven wheel 54 and the second driven wheel 55 are away from each other and respectively abut against one guide rail inside the U-shaped rail, that is, the hanging mechanism 5 is switched from the installation position to the use position, and at this time, the curtain opening and closing device is hung on the U-shaped rail, and the installation is completed.

In an alternative embodiment, it is also possible to shorten the length of the first button 44 and the second button, and to provide a transmission plate between the first button 44 and the first slider 521 for transmission connection, and to provide a transmission plate between the second button and the second slider 531 for transmission connection.

In an alternative embodiment, the first button 44 and the second button can be integrally disposed outside the housing 1, and the first sliding hole 112 and the second sliding hole 122 are reserved, and then the hooking mechanism 5 can be switched between the use position and the installation position by disposing the protruding structures on the first button 44 and the second button and extending the protruding structures into the housing 1 from the corresponding sliding holes to abut against the sliding blocks.

In another alternative embodiment, on the premise of reserving the first sliding hole 112 and the second sliding hole 122, the first slider 521 and the second slider 531 may be respectively extended through the corresponding sliding holes, and then the first button 44 and the second button are integrally disposed on the outer side of the housing 1, and the extended sliders are pressed during the pressing process of the buttons to achieve the purpose of sliding, so as to achieve the switching between the use position and the installation position of the hanging mechanism 5.

Of course, the development of the above preferred embodiment is also applicable to this embodiment, for example, when only one support is reciprocally movable, only one button may be provided. For another example, the slider and the button may be hinged by a hinge rod to realize transmission and the like.

It should be noted that although only two embodiments are provided for the switch unit 4, it should be understood by those skilled in the art that the contribution of the present application to the prior art is embodied in the adjustment of the position of the hitch mechanism 5 by the simple opening and closing operation of the switch unit 4 to realize the installation of the device, and the protection scope thereof should not be limited to the arrangement of the two switch units, and therefore, those skilled in the art can adopt other forms of switch units 4 to realize the technical object of the present application. For example, in a possible embodiment, the coupling mechanism 5 can also be driven by a lever, a pusher, or the like.

Those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.

So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims (15)

1. A curtain opening and closing device is characterized by comprising:

the top of the shell is provided with a through hole;

the driving roller assembly comprises a driving mechanism and a driving wheel, the driving mechanism is used for driving the driving wheel to rotate, and the driving wheel is arranged in the shell and partially extends out of the through hole;

two hooking mechanisms respectively arranged on two sides of the driving wheel along the rolling direction of the driving wheel, each hooking mechanism comprises a first bracket, a second bracket, a first driven wheel and a second driven wheel, the first driven wheel is rotatably arranged on the first bracket, the second driven wheel is rotatably arranged on the second bracket, at least one of the first bracket and the second bracket is arranged to reciprocate along the axial direction of the driving wheel, the movement enables the hooking mechanism to be switched between an installation position and a use position,

a switch part which is arranged on the shell and is in transmission connection with the hanging mechanism, is arranged to be switched from a first position to a second position under the action of external force and is reset from the second position to the first position when the external force is removed,

when the switch portion is switched from the first position to the second position, the hooking mechanism is switchable from the use position to the mounting position; when the switch portion is reset from the second position to the first position, the hooking mechanism is switched from the mounting position to the use position.

2. The curtain opening and closing device as claimed in claim 1, wherein the first support comprises a first slider and a first support rod, the top surface of the housing is provided with an extending hole, the lower end of the first support rod is fixedly connected to the first slider, the upper end of the first support rod extends from the extending hole, the first driven wheel is rotatably disposed at the upper end of the first support rod,

the first side surface of the shell is provided with a first sliding hole, and the first sliding block is slidably arranged in the shell and is arranged corresponding to the first sliding hole.

3. The window covering opening and closing apparatus of claim 2, wherein the second bracket comprises a second slider and a second rod, a lower end of the second rod is fixedly connected to the second slider, an upper end of the second rod extends out of the extending hole, the second driven wheel is rotatably disposed at an upper end of the second rod,

and a second side surface, opposite to the first side surface, of the shell is provided with a second sliding hole, and the second sliding block is slidably arranged in the shell and is arranged corresponding to the second sliding hole.

4. The device as claimed in claim 3, wherein the hooking mechanism further comprises a first elastic member connected to the first slider and the second slider, respectively, the first elastic member being configured to store elastic potential energy when the hooking mechanism is in the installed position.

5. The curtain opening and closing device as claimed in claim 4, wherein the first slider is provided with a first mounting seat at a side surface close to the second slider, the second slider is provided with a second mounting seat at a side surface close to the first slider, the first elastic member is a compression spring, and two ends of the compression spring are respectively sleeved on the first mounting seat and the second mounting seat.

6. The opening and closing device for curtains according to claim 5, wherein the hanging mechanism further comprises a housing, the housing is disposed in the casing, a first through hole and a second through hole are disposed on a top of the housing, a first sliding slot and a second sliding slot are formed in the housing, the first rod extends from the first through hole, the second rod extends from the second through hole, the first sliding block is slidably disposed in the first sliding slot, and the second sliding block is slidably disposed in the second sliding slot.

7. The curtain opening and closing device as claimed in claim 6, wherein the housing comprises an upper housing and a lower housing which are snap-coupled to each other,

an upper convex structure extending along the axial direction of the driving wheel is arranged in the middle of the inner top surface of the upper shell, the upper convex structure divides the upper shell into a first upper half groove and a second upper half groove,

the middle part of the inner bottom surface of the lower shell is provided with a lower convex structure extending along the axial direction of the driving wheel, the lower convex structure divides the lower shell into a first lower half groove and a second lower half groove,

the first upper half groove and the first lower half groove are encircled to form the first sliding groove, and the second upper half groove and the second lower half groove are encircled to form the second sliding groove.

8. The curtain opening and closing device as claimed in claim 7, wherein a first limit structure and a second limit structure are formed between the upper protruding structure and the lower protruding structure, the side of the first mounting seat facing away from the first elastic member can abut against the first limit structure, and the side of the second mounting seat facing away from the first elastic member can abut against the second limit structure.

9. The window covering opening and closing apparatus of claim 2, wherein the opening and closing part includes a first clamping plate and a second elastic member,

the first clamping plate is pivotally arranged at the first side face, the second elastic piece is arranged to store elastic potential energy when the first clamping plate is pivoted from a position closed relative to the shell to a position opened relative to the shell under the action of external force, and the elastic potential energy is released after the external force is removed, so that the first clamping plate is pivoted from the position opened relative to the shell to the position closed relative to the shell,

wherein when the first clamping plate pivots from an open position relative to the housing to a closed position relative to the housing, the inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole.

10. The window covering opening and closing device of claim 3, wherein said opening and closing portion comprises a first jaw, a second elastic member, and a third elastic member,

the first clamping plate is pivotally arranged at the first side face, the second elastic piece is arranged to store elastic potential energy when the first clamping plate pivots from a position closed relative to the shell to a position opened relative to the shell under the action of external force, the elastic potential energy is released after the external force is removed, and therefore the first clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, wherein when the first clamping plate pivots from the position opened relative to the shell to the position closed relative to the shell, the inner side face of the first clamping plate pushes the first bracket to slide towards the first sliding hole,

the second clamping plate is pivotally arranged on the second side face, the third elastic piece is arranged to store elastic potential energy when the second clamping plate pivots from a position closed relative to the outer shell to a position opened relative to the outer shell under the action of external force, and the elastic potential energy is released after the external force is removed, so that the second clamping plate pivots from the position opened relative to the outer shell to the position closed relative to the outer shell, wherein when the second clamping plate pivots from the position opened relative to the outer shell to the position closed relative to the outer shell, the inner side face of the second clamping plate pushes the second bracket to slide towards the second sliding hole.

11. The device as claimed in claim 10, wherein the first clamping plate has a first shaft seat on an inner side thereof, the first shaft seat has a first shaft hole, the first side surface has a second shaft seat, the second shaft seat has a second shaft hole, the first shaft hole and the second shaft hole are connected by a first rotating shaft,

the inner side face of the second clamping plate is provided with a third shaft seat, a third shaft hole is formed in the third shaft seat, a fourth shaft seat is arranged on the second side face, a fourth shaft hole is formed in the fourth shaft seat, and the third shaft hole is connected with the fourth shaft hole through a second rotating shaft.

12. The device as claimed in claim 11, wherein the first clamping plate has a first receiving groove formed on an inner side thereof, the first shaft seat is disposed in the first receiving groove, the first side surface has a first through groove formed therein, the second shaft seat is disposed in the first through groove, and when the device is mounted, the first shaft seat is disposed in the first through groove,

the second containing groove is formed in the inner side face of the second clamping plate, the second shaft seat is arranged in the second containing groove, a second through groove is formed in the second side face, the fourth shaft seat is arranged in the second through groove, and after the installation is completed, the third shaft seat is located in the second through groove.

13. The device as claimed in claim 11, wherein the first side surface is located below the second shaft hole, and the second side surface is located below the fourth shaft hole and gradually narrows from top to bottom along the vertical direction; and/or

The lower part of the outer side surface of the first clamping plate is provided with a first shallow groove, and the lower part of the outer side surface of the second clamping plate is provided with a second shallow groove.

14. The window covering opening and closing apparatus of claim 2, wherein the opening and closing part includes a first button and a fourth elastic member,

the first button is elastically arranged on the first side face of the shell through the fourth elastic piece, the fourth elastic piece is arranged to store elastic potential energy when the first button is pressed down under the action of external force, and when the first button is pressed down, the inner side face of the first button pushes the first support to slide towards the first sliding hole.

15. The curtain opening and closing device as claimed in claim 3, wherein the switch part comprises a first button, a second button, a fourth elastic member and a fifth elastic member,

the first button is elastically arranged on the first side surface of the shell through the fourth elastic piece, the fourth elastic piece is arranged to store elastic potential energy when the first button is pressed down under the action of external force, when the first button is pressed down, the inner side surface of the first button pushes the first support to slide towards the first sliding hole,

the second button is elastically arranged on the second side face of the shell through the fifth elastic piece, the fifth elastic piece is arranged to store elastic potential energy when the second button is pressed down under the action of external force, and when the second button is pressed down, the inner side face of the second button pushes the second support to slide towards the second sliding hole.

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