CN116406917A

CN116406917A - Curtain opening and closing device

Info

Publication number: CN116406917A
Application number: CN202210007025.9A
Authority: CN
Inventors: 王建锋; 刘晓明; 方红根; 王增清; 饶宇斌; 胡俊宇
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2023-07-11
Also published as: WO2023130634A1

Abstract

The invention relates to the technical field of intelligent home, in particular to a curtain opening and closing device. The application aims to solve the problem of inconvenient installation of the existing curtain opening and closing device. The curtain opening and closing device of this application includes: a housing; a drive roller assembly; the two sides of the driving wheel are respectively provided with one hanging mechanism, each hanging 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, and at least one of the first bracket and the second bracket can be arranged to reciprocate along the axial direction of the driving wheel; and the switch part is moved 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 is moved to the use position when the external force is removed and the switch part is reset from the second position to the first position. The installation and the dismantlement of hanging mechanism are realized through switch portion to this application, simple to operate.

Description

Curtain opening and closing device

Technical Field

The invention relates to the technical field of intelligent home, in particular to a curtain opening and closing device.

Background

In order to realize automatic control of the horizontal drawing type curtain, the electric curtain is generated. However, for a household with a manual curtain, the curtain rail needs to be detached as a whole and replaced by a rail for turning the electric curtain, so that the electric transformation of the curtain can be realized, and the transformation cost is high.

Therefore, some manufacturers develop a curtain opening and closing device, and the curtain opening and closing device can realize automatic control of the curtain by directly installing the curtain opening and closing device on a curtain rail without modifying the existing manual curtain. Specifically, the curtain opening and closing device is generally provided with a shell, a driving roller arranged in the shell and a hanging mechanism arranged on the shell, wherein a part of the driving roller extends out of the shell, the hanging mechanism is arranged on a curtain rail, and the driving roller is propped against the bottom of the curtain rail, so that the curtain opening and closing device is driven to walk along the curtain rail through the rotation of the driving roller, and the curtain is driven to be opened and closed in the walking process.

However, in order to install the existing curtain opening and closing device on a curtain rail, a relatively complex installation process is generally required, so that the installation is inconvenient, and especially the one-hand installation cannot be realized.

Accordingly, there is a need in the art for a new window covering opening and closing device that addresses the above-described problems.

Disclosure of Invention

In order to solve at least one of the above problems in the prior art, that is, to solve the problem of inconvenient installation of the existing curtain opening and closing device, the present application provides a curtain opening and closing device, the curtain opening and closing device includes: a housing having a through hole formed at a top thereof; 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 through the through hole; the two hanging mechanisms are respectively arranged at two sides of the driving wheel along the rolling direction of the driving wheel, each hanging 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 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, a switch part is arranged on the shell and in transmission connection with the hanging mechanism, the switch part is arranged to be capable of being switched from a first position to a second position under the action of external force, and is reset to the first position when the external force is removed, and the switch part is capable of being switched from the mounting position to the using position when the switch part is switched from the first position to the second 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.

In the preferred technical scheme of the curtain opening and closing device, the first bracket comprises a first sliding block and a first supporting rod, the top surface of the shell is provided with an extending hole, 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 shell and corresponds to the first sliding hole.

In the preferable technical scheme of the curtain opening and closing device, the second bracket comprises a second sliding block and a second supporting rod, the lower end of the second supporting rod is fixedly connected to the second sliding block, 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 arranged in the shell and corresponds to the second sliding hole.

In a preferred technical solution of the curtain opening and closing device, the hooking mechanism further includes a first elastic member, the first elastic member is connected with the first slider and the second slider, respectively, and the first elastic member is configured to store elastic potential energy when the hooking mechanism is in the installation position.

In the preferred technical scheme of the curtain opening and closing device, the first sliding block is provided with a first installation seat on the side face close to the second sliding block, the second sliding block is provided with a second installation seat on the side face close to the first sliding block, the first elastic piece is a compression spring, and two ends of the compression spring are respectively sleeved on the first installation seat and the second installation seat.

In the preferred 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 through hole and a second through hole are formed in the top of the housing, a first sliding groove and a second sliding groove are formed in the housing, the first supporting rod extends out of the first through hole, the second supporting rod extends out of the second through hole, the first sliding block is slidably arranged in the first sliding groove, and the second sliding block is slidably arranged in the second sliding groove.

In the preferred technical scheme of the curtain opening and closing device, the cover shell comprises an upper shell and a lower shell which are buckled and connected with each other, an upper protruding 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 protruding structure divides the upper shell into a first upper half groove and a second upper half groove, a lower protruding structure extending along the axial direction of the driving wheel is arranged in the middle of the inner bottom surface of the lower shell, the lower protruding 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 surrounded to form a first sliding groove, and the second upper half groove and the second lower half groove are surrounded to form a second sliding groove.

In the preferred technical scheme of the curtain opening and closing device, a first limiting structure and a second limiting structure are formed between the upper protruding structure and the lower protruding structure, the side face, deviating from the first elastic piece, of the first spring mounting seat can be abutted to the first limiting structure, and the side face, deviating from the first elastic piece, of the second spring mounting seat can be abutted to the second limiting structure.

In a preferred embodiment of the 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 is pivoted from a closed position relative to the housing to an open position relative to the housing under an external force, and release the elastic potential energy after the external force is removed, and thus enable the first clamping plate to pivot from the open position relative to the housing to the closed position relative to the housing, wherein when the first clamping plate is pivoted 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.

In a preferred embodiment of the curtain opening and closing device, the switch portion includes a first clamp plate, a second elastic member, and a third elastic member, a first sliding hole is formed in a first side surface of the housing, a second sliding hole is formed in a second side surface of the housing opposite to the first side surface, the first clamp plate is pivotably disposed on the first side surface, the second elastic member is configured to store elastic potential energy when the first clamp plate is pivoted from a position closed relative to the housing to a position opened relative to the housing under an external force, the elastic potential energy is released when the external force is removed, and the first clamp plate is pivoted from a position opened relative to the housing to a position closed relative to the housing, wherein when the first clamp plate is pivoted from a position opened relative to the housing, the first clamp plate pushes the first bracket into the first sliding hole, the second clamp plate is pivotably disposed on the first side surface, the second clamp plate is pivotably disposed on the second side surface from a position closed relative to the housing, and the second clamp plate is released when the external force is removed, and the elastic potential energy is released from the second clamp plate is pivoted from the position opened relative to the housing to a position closed relative to the housing.

In the preferred technical scheme of the curtain opening and closing device, the inner side surface of the first clamping plate is provided with a first shaft seat, the first shaft seat is provided with a first shaft hole, the first side surface is provided with a second shaft seat, the second shaft seat is provided with a second shaft hole, the first shaft hole is connected with the second shaft hole through a first 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 shaft.

In the preferred technical scheme of the curtain opening and closing device, the inner side surface of the first clamping plate is provided with a first accommodating groove, the first shaft seat is arranged in the first accommodating groove, the first side surface is provided with a first through groove, the second shaft seat is arranged in the first through groove, after the installation, the first shaft seat is positioned in the first through groove, the inner side surface of the second clamping plate is provided with a second accommodating groove, the second shaft seat is arranged in the second accommodating groove, the second side surface is provided with a second through groove, the fourth shaft seat is arranged in the second through groove, and after the installation, the third shaft seat is positioned in the second through groove.

In the preferable technical scheme of the curtain opening and closing device, the part of the first side surface below the second shaft hole and the part of the second side surface below the fourth shaft hole 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.

In the preferred technical scheme of the curtain opening and closing device, the switch part comprises a first button and a fourth elastic piece, 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 under the action of external force, and when the first button is pressed, the inner side face of the first button pushes the first bracket to slide into the first sliding hole.

In the preferred technical solution of the 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 disposed so that the first button stores elastic potential energy when being pressed under the action of external force, when the first button is pressed, the 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 disposed so that the second button stores elastic potential energy when being pressed under the action of external force, wherein when the second button is pressed, the 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 curtain device that opens and shuts of this application has simple to operate's advantage. Specifically, through making switch portion switch to the second position from the first position under the exogenic action for the hooking mechanism can switch to the mounted position from the using position, can conveniently remove the curtain opening and shutting device to the curtain rail wait to install the position this moment, then when external force is removed, switch portion reset to the first position from the second position for hooking mechanism switches to the using position from the mounted position, can install the curtain opening and shutting device on the curtain rail. In other words, the device can be installed by simple switching action, and the installation process of the curtain opening and closing device is greatly simplified.

Scheme 1. A curtain opening and closing device, its characterized in that, the curtain opening and closing device includes:

a housing having a through hole formed at a top thereof;

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 through the through hole;

the two hanging mechanisms are respectively arranged at two sides of the driving wheel along the rolling direction of the driving wheel, each hanging 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 be capable of reciprocating along the axial direction of the driving wheel, the movement enables the hanging mechanism to be switched between an installation position and a use position,

The switch part 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 is reset to the first position from the second position when the external force is removed,

when the switch part is switched from the first position to the second position, the hooking mechanism can be switched from the use position to the installation 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.

The curtain opening and closing device according to the scheme 2 is characterized in that the first bracket comprises a first sliding block and a first supporting rod, the top surface of the shell is provided with an extending hole, 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,

the first sliding block is slidably arranged in the shell and corresponds to the first sliding hole.

The curtain opening and closing device according to the scheme 3 is characterized in that the second bracket comprises a second sliding block and a second supporting rod, the lower end of the second supporting rod is fixedly connected to the second sliding block, 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 curtain opening and closing device according to claim 3, wherein the hooking mechanism further comprises a first elastic member, the first elastic member being respectively connected to the first slider and the second slider, the first elastic member being configured to store elastic potential energy when the hooking mechanism is in the installed position.

The curtain opening and closing device according to the scheme 5 is characterized in that a first installation seat is arranged on the side face, close to the second sliding block, of the first sliding block, a second installation seat is arranged on the side face, 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 installation seat and the second installation seat.

The curtain opening and closing device according to any one of claims 3 to 5, wherein the hooking mechanism further comprises a housing, the housing is disposed in the housing, a first through hole and a second through hole are formed in the top of the housing, a first sliding groove and a second sliding groove are formed in the housing, the first supporting rod extends out of the first through hole, the second supporting rod extends out of the second through hole, the first sliding block is slidably disposed in the first sliding groove, and the second sliding block is slidably disposed in the second sliding groove.

The window covering opening and closing apparatus according to claim 6, wherein the cover includes an upper case and a lower case fastened to each other,

an upper protruding 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 protruding structure divides the upper shell into a first upper half groove and a second upper half groove,

a lower protruding structure extending along the axial direction of the driving wheel is arranged in the middle of the inner bottom surface of the lower shell, the lower protruding structure divides the lower shell into a first lower half groove and a second lower half groove,

the first sliding groove is formed by surrounding the first upper half groove and the first lower half groove, and the second sliding groove is formed by surrounding the second upper half groove and the second lower half groove.

The curtain opening and closing device according to the scheme 7 of the indirect referencing scheme 5 is characterized in that a first limiting structure and a second limiting structure are formed between the upper protruding structure and the lower protruding structure, the side face, away from the first elastic piece, of the first spring mounting seat can be abutted to the first limiting structure, and the side face, away from the first elastic piece, of the second spring mounting seat can be abutted to the second limiting structure.

The curtain opening and closing device according to claim 2, wherein the switch portion includes a first clamping plate and a second elastic member, a first sliding hole is formed on a first side surface of the housing,

the first clamping plate is pivotably arranged on the first side, the second elastic member is arranged to store elastic potential energy when the first clamping plate is pivoted from a closed position relative to the housing to an open position relative to the housing under the action of an external force, release the elastic potential energy after the external force is removed and thus enable the first clamping plate to pivot from the open position relative to the housing to the closed position relative to the housing,

when the first clamping plate is pivoted from an opening position relative to the shell to a closing position relative to the shell, the inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole.

The curtain opening and closing device according to claim 10 is characterized in that the opening and closing part comprises a first clamping plate, a second elastic piece and a third elastic piece, a first sliding hole is formed on a first side surface of the shell, a second sliding hole is formed on a second side surface of the shell opposite to the first side surface,

The first clamping plate is pivotably arranged on the first side surface, the second elastic piece is arranged to store elastic potential energy when the first clamping plate is pivoted from a closed position relative to the shell to an open position relative to the shell under the action of external force, the elastic potential energy is released after the external force is removed, and the first clamping plate is pivoted from the open position relative to the shell to the closed position relative to the shell, wherein when the first clamping plate is pivoted from the open position relative to the shell to the closed position relative to the shell, the inner side surface of the first clamping plate pushes the first bracket to slide into the first sliding hole,

the second clamping plate is pivotably arranged on the second side surface, the third elastic piece is arranged to store elastic potential energy when the second clamping plate is pivoted from a closed position relative to the shell to an open position relative to the shell under the action of external force, the elastic potential energy is released after the external force is removed, and the second clamping plate is pivoted from the open position relative to the shell to the closed position relative to the shell, wherein when the second clamping plate is pivoted from the open position relative to the shell to the closed position relative to the shell, the inner side surface of the second clamping plate pushes the second support to slide into the second sliding hole.

The curtain opening and closing device according to claim 11 is characterized in that the inner side surface of the first clamping plate is provided with a first shaft seat, the first shaft seat is provided with a first shaft hole, the first side surface is provided with a second shaft seat, the second shaft seat is provided with a second shaft hole, the first shaft hole is connected with the second shaft hole through a first rotating shaft,

the inner side 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, 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.

The curtain opening and closing device according to claim 11 is characterized in that the inner side surface of the first clamping plate is provided with a first accommodating groove, the first shaft seat is arranged in the first accommodating groove, the first side surface is provided with a first through groove, the second shaft seat is arranged in the first through groove, after the installation, the first shaft seat is positioned in the first through groove,

the second axle seat set up in the second accommodation groove has been seted up to the medial surface of second splint, the second side be formed with the second through groove, the fourth axle seat set up in the second through groove, after the installation, the third axle seat is located the second through groove.

The window covering opening and closing apparatus according to claim 11, wherein a portion of the first side surface below the second axial hole and a portion of the second side surface below the fourth axial hole are gradually narrowed from top to bottom in a 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.

The window covering opening and closing apparatus according to claim 2, wherein the switch portion 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 under the action of external force, and when the first button is pressed, the inner side face of the first button pushes the first support to slide into the first sliding hole.

The window covering opening and closing apparatus according to claim 3, wherein the switch part includes 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 under the action of external force, wherein when the first button is pressed, the inner side surface of the first button pushes the first bracket to slide into 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 under the action of external force, and when the second button is pressed, the inner side face of the second button pushes the second support to slide into the second sliding hole.

Drawings

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

FIG. 1 is a diagram of an assembly process of the curtain opening and closing device applied to a U-shaped track;

fig. 2 is a diagram (two) illustrating an assembly process of the curtain opening and closing device applied to a U-shaped rail;

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

FIG. 4 is an exploded view of the hitching mechanism of the curtain opening and closing apparatus of the present application;

FIG. 5A is a block diagram of a hanging mechanism of a curtain opening and closing device of the present application in an installed position;

FIG. 5B is a top view of the hitching mechanism of the curtain opening and closing apparatus of the present application in an installed position;

FIG. 6A is a block diagram of a hanging mechanism of a curtain opening and closing device of the present application in a use position;

FIG. 6B is a top view of the hitching mechanism of the curtain opening and closing apparatus of the present application in a use position;

Fig. 7A is a diagram (a) illustrating an assembly process of the curtain opening and closing device applied to an i-shaped track;

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

fig. 8 is a structural view of a second embodiment of the curtain opening and closing apparatus applied to a U-shaped rail.

List of reference numerals

1. A housing; 11. a front shell; 111. a first opening; 112. a first slide hole; 113. a second axle seat; 114. a first through groove; 115. a first embedding hole; 12. a rear case; 121. a second opening; 122. a second slide hole; 124. a second through slot;

2. a drive roller assembly;

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

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

5. a hitching mechanism; 51. a housing; 511. an upper housing; 5111. an upper bump structure; 5112. a first upper half groove; 5113. a second upper half groove; 5114. a first upper limit plate; 5115. a first via; 5116. a second via; 512. a lower housing; 5121. a lower bump structure; 5122. a first lower half groove; 5123. a second lower half groove; 5124. a first lower limit plate; 5125. a second lower limit plate; 52. a first bracket; 521. a first slider; 5211. a first mount; 522. a first strut; 53. a second bracket; 531. a second slider; 5311. a second mounting base; 532. a second strut; 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. i-shaped track.

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 merely 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, terms such as "upper," "lower," "left," "right," "front," "rear," "vertical," "inner," "outer," and the like indicate directions or positional relationships 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 apparatus or elements must have a specific orientation, be configured 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, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will 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 curtain opening and closing apparatus of the present application will be described with reference to a curtain rail being a U-shaped rail.

As shown in fig. 1 to 2, in order to solve the problem of inconvenient installation of the existing 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 assembly 3, a hitching 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 for driving the driving wheel to rotate, and a driving wheel (not shown in the drawings) mounted in the housing 1 and partially extended through the through hole. A power supply assembly 3 is provided within the housing 1 for supplying power to the drive mechanism.

The hitching mechanism 5 is provided with two, and is disposed on both sides of the driving wheel along the rolling direction of the driving wheel (i.e., the extending direction of the U-shaped rail 7), each hitching 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 disposed on the first bracket 52, the second driven wheel 55 is rotatably disposed on the second bracket 53, at least one of the first bracket 52 and the second bracket 53 is disposed to be capable of reciprocating along the axial direction of the driving wheel (i.e., the horizontal direction perpendicular to the extending direction of the U-shaped rail 7), and the movement enables the hitching 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 is reset from the second position to the first position when the external force is removed. When the switch portion 4 is pivoted from the first position to the second position, the hitching mechanism 5 can be switched from the use position to the installation position; when the switch portion 4 is reset from the second position to the first position, the hitching mechanism 5 can be switched from the mounting position back to the use position.

In the curtain opening and closing device, in a static state, the switch part 4 is positioned at a first position, and the hanging mechanism 5 is positioned at a using position. In use, an external force is first applied to the switch portion 4 to switch the switch portion 4 from the first position to the second position, and at the same time, the hooking 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 switch part 4 is removed, at the moment, the switch part 4 is reset to the first position from the second position, and at the moment, the hanging mechanism 5 is switched to the using position from the installation position, so that the device is hung on the U-shaped track 7. After the hanging device is well arranged, the driving wheel in the driving roller assembly 2 is propped against the lower side face of the U-shaped track 7, the driving wheel rotates under the driving of the driving mechanism, and the walking on the U-shaped track 7 is realized through the friction between the driving wheel and the U-shaped track 7. In the running process, the curtain opening and closing device drives the curtain hooks on the U-shaped track 7 to move, so that the curtains can be automatically opened and closed.

As can be seen from the above description, by providing the switch portion 4, the curtain opening and closing device of the present application has the advantage of convenient installation. Specifically, the switch portion 4 is switched from the first position to the second position under the action of external force, so that the hanging mechanism 5 can be switched from the use position to the installation position, at the moment, the curtain opening and closing device can be conveniently moved to the to-be-installed position of the curtain rail, and then when the external force is removed, the switch portion 4 is reset from the second position to the first position, so that the hanging 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 device can be installed by simple switch action, 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 application will be described with further reference to fig. 1 to 6B.

Referring first to fig. 3, the housing 1 includes a front case 11 and a rear case 12, and the front case 11 and the rear case 12 are mounted together by snap-fit, screw-fit, or the like. The top parts of the front shell 11 and the rear shell 12 are respectively provided with a notch (not shown in the figure), after the installation, a cavity is formed in the shell 1, and through holes are formed by surrounding the two notches. 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 installed in the cavity of the housing 1, and after the installation, the driving wheel part extends out through the through hole and can rotate relative to the housing 1. It should be noted that the form and principle of the driving roller assembly 2 in the prior art are relatively common, and the specific form of the driving roller assembly 2 is not limited in this application, and any driving roller assembly 2 that can meet the installation conditions in this application can be applied in this application.

With continued reference to fig. 3, the power module 3 includes a battery 31 and a circuit board 32, where the battery 31 may be a lithium battery 31, which is connected to the circuit board 32, and the circuit board 32 is connected to the motor, and the battery 31 is used to supply power to the motor, and the circuit board 32 is used to control the start and stop of the motor, and the connection and control methods are relatively common in the art, so that they are not repeated. In the present application, the receiving mode of the start/stop command of the motor is not limited, and may be issued by a user using a remote controller, a mobile terminal, or other devices in communication connection with the circuit board 32, or may be issued by a physical button provided in the housing 1, or may be issued by a button or switch provided at an arbitrary indoor position and in communication connection with the circuit board 32. 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, or the like. The mobile terminal may be, for example, a mobile phone, an intelligent home device, a wearable device, an intelligent mobile device, a virtual reality device, or any combination thereof, and the like. Of course, when any of the above connection methods is adopted, the circuit board 32 needs to be mounted with corresponding modules, and the arrangement and connection methods of these modules are all conventional in the art, so that the description thereof is omitted.

Still referring to fig. 3, the switch part 4 includes two clamping plates, in this application, a first clamping plate 41 and a second clamping plate 42, and the first clamping plate 41 and the second clamping plate 42 are pivotally disposed on opposite first and second sides of the housing 1 through a rotation shaft, respectively. In this application, the first clamping plate 41 is pivotally connected to the front side of the front case 11 through a first rotation shaft, and the second clamping plate 42 is pivotally connected to the rear side of the rear case 12 through a second rotation shaft 61.

Specifically, taking the first clamping plate 41 as an example, the first clamping plate is formed by combining the first body 411 and the first cover 412 by clamping, screwing, and the like, and the lower portion of the outer side surface (i.e., the side surface facing away from the housing 1 after being mounted) of the first cover 412 is provided with a first shallow groove 4121, where the first shallow groove 4121 is elongated and extends along the width direction (i.e., the left-right direction in fig. 3) of the first cover 412. The inner side surface of the first body 411 (i.e. the side surface facing the housing 1 after being installed) is provided with a first accommodating groove 4112, the first accommodating groove 4112 is a substantially rectangular groove, two ends of the middle part of the first accommodating groove 4112 are respectively provided with a first shaft seat 4111, and each first shaft seat 4111 is provided with a first shaft hole (not shown). The front side middle part of the front shell 11 is provided with a first through groove 114, 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 passes through the first shaft hole, the second shaft hole and the first shaft hole in sequence, and then the first clamping plate 41 is pivotally connected with the front shell 11, and the two first shaft seats 4111 are pivotally positioned in the first through grooves 114.

Similarly, the second clamping plate 42 is formed by combining the second body 421 and the second cover 422 through a clamping manner, a screwing manner, and the like, and a second shallow groove (not shown in the figure) is formed in the lower portion of the outer side surface (i.e., the side surface facing away from the housing 1 after the second cover 422 is mounted) of the second cover 422, and the second shallow groove is long and extends along the width direction (i.e., the left-right direction in fig. 3) of the second cover 422. The second body 421 has a second accommodating groove 4212 formed on an inner side surface (i.e., a side surface facing the housing 1 after being mounted), the second accommodating groove 4212 is a rectangular groove, two ends of a middle portion of the second accommodating groove 4212 are respectively provided with a third shaft seat 4211, and a third shaft hole (not shown) is formed on each third shaft seat 4211. The rear shell 12 is provided with a second through groove 124 in the middle of the rear side surface, 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 drawing) are provided 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 passes through the third shaft hole, the fourth shaft hole and the third shaft hole in sequence, and then pivotally connects the second clamping plate 42 with the rear housing 12, and the two third shaft seats 4211 are pivotally located in the second through slots 124.

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

Referring to fig. 1 and 2, when the switch portion 4 is in the first position, the portion of the first clamping plate 41 above the first shaft seat 4111 and the portion of the second clamping plate 42 above the third shaft seat 4211 form a "chuck" portion of the clip when viewed from the side of the device, and the portion of the first clamping plate 41 below the first shaft seat 4111 and the portion of the second clamping plate 42 below the third shaft seat 4211 form a "handle" portion of the clip when an external force is applied to the "handle", the first clamping plate 41 and the second clamping plate 42 pivot about the first rotation axis and the second rotation axis 61 to an open position (i.e., the second position) with respect to the housing 1, respectively, and the "chuck" portion opens with respect to the top of the housing 1, and at this time the front side of the front housing 11 and the rear side of the rear housing 12 are accommodated in the first accommodation groove 4112 and the second accommodation groove 4212, respectively. When the external force is removed, the first clamping plate 41 and the second clamping plate 42 pivot about the first pivot axis and the second pivot axis 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 apparatus further includes a second elastic member (not shown) and a third elastic member 43. Wherein the second elastic member is arranged such that the first clamping plate 41 stores elastic potential energy when pivoted from a closed position with respect to the housing 1 to an open position with respect to the housing 1 under the action of an external force, and releases the elastic potential energy after the external force is removed and thus causes the first clamping plate 41 to pivot from the open position with respect to the housing 1 to the closed position with respect to the housing 1. The third elastic member 43 is provided such that the second clamping plate 42 stores elastic potential energy when pivoted from a closed position with respect to the housing 1 to an open position with respect to the housing 1 by an external force, and releases the elastic potential energy after the external force is removed and thus causes the second clamping plate 42 to pivot from the open position with respect to the housing 1 to the closed position with respect to the housing 1. Specifically, the second elastic member and the third elastic member 43 are torsion springs, 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 protruding ends of the torsion springs respectively abut against the second accommodating groove 4212 and the rear side surface of the rear housing 12.

Referring to fig. 3, for each of the hitching mechanisms 5, the top surface of the housing 1 is provided with an extension hole, the first side surface is provided with a first slide hole 112, and the second side surface is provided with a second slide hole 122. Specifically, two first openings 111 are formed in the top surface of the front shell 11, two second openings 121 are formed in the top surface of the rear shell 12, and after the front shell is mounted, two protruding holes are formed by surrounding the two first openings 111 and the two second openings 121. Two first slide holes 112 are formed in the upper portion of the front side surface of the front shell 11, the first slide holes 112 are rectangular long-strip holes, and the two first slide holes 112 are arranged side by side along the width direction of the front shell 11. Two second slide holes 122 are formed in the upper portion of the rear side face of the rear shell 12, the second slide holes 122 are rectangular long strip holes, and the two second slide holes 122 are arranged side by side along the width direction of the rear shell 12.

Referring to fig. 4, 5A and 5B, the hitching 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 cover 51 is disposed in the housing 1 in a clamping, screwing or abutting manner, a first through hole 5115 and a second through hole 5116 are disposed at the top of the cover 51, and a first chute and a second chute are formed in the cover 51. Specifically, referring to fig. 4, the cover 51 includes an upper case 511 and a lower case 512 which are snap-coupled to each other, and the upper case 511 and the lower case 512 are integrally formed, respectively. Wherein, an upper protruding structure 5111 extending along the axial direction of the driving wheel is disposed in the middle of the inner top surface of the upper housing 511, the upper protruding structure 5111 divides the upper housing 511 into a first upper half groove 5112 and a second upper half groove 5113, a lower protruding structure 5121 extending along the axial direction of the driving wheel is disposed in the middle of the inner bottom surface of the lower housing 512, the lower protruding structure 5121 divides the lower housing 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 enclose a first chute, and the second upper half groove 5113 and the second lower half groove 5123 enclose a second chute.

A first limit structure and a second limit structure are formed between the upper projection structure 5111 and the lower projection structure 5121. Wherein, the upper protruding structure 5111 is provided with a first upper limiting plate 5114 and a second upper limiting plate along two ends of its length direction, and the lower protruding structure 5121 is provided with a first lower limiting plate 5124 and a second lower limiting plate 5125 along two ends of its length direction. After the assembly is completed, the free end of the first upper limiting plate 5114 is abutted with 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 is abutted with 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 installation, the first slider 521 is slidably disposed in the first chute, and the upper end of the first strut 522 extends from the first via 5115. Similarly, the second bracket 53 includes a second slider 531 and a second strut 532, where a lower end of the second strut 532 is fixedly connected to the second slider 531, an upper end of the second strut 532 is a free end, and the second driven wheel 55 is rotatably disposed at the upper end of the second strut 532. When mounted, the second slider 531 is slidably disposed in the second chute, and the upper end of the second strut 532 extends from the second via 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 hitching 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, the first mounting seat 5211 and the second mounting seat 5311 are both formed with columns, the first elastic member 56 is a compression spring, and two ends of the compression spring are respectively sleeved on the columns of the first mounting seat 5211 and 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, and when first slider 521 and second slider 531 slide along the direction of shell 1 outside to shell 1 inside simultaneously, compression spring is compressed thereby stores elastic potential energy, can make first slider 521 and second slider 531 slide to shell 1 outside respectively when this elastic potential energy releases to when compression spring releases 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 hitching mechanisms 5 are symmetrically installed in the housing 1 as compared with the rotation axis of the driving wheel, after the hitching mechanisms are installed, the first through holes 5115 and the second through holes 5116 correspond to the extending holes, the upper ends of the first supporting rods 522 extend from the extending holes, the upper ends of the second supporting rods 532 extend from the extending holes, the front ends of the first sliding blocks 521 correspond to the first sliding holes 112 and can extend or retract from the first sliding holes 112, and the rear ends of the second sliding blocks 531 correspond to the second sliding holes 122 and can extend or retract from the second sliding holes 122.

The following describes a process of installing the curtain opening/closing device of the present application with reference to fig. 1 to 2 and fig. 5A to 6B.

As shown in fig. 2, 6A and 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 clung to the front side surface of the front housing 11 and the rear side surface of the rear housing 12 under the action of the torsion spring, the first slider 521 is located at the first sliding hole 112 under the pressing force of the first clamping plate 41, the second slider 531 is located at the second sliding hole 122 under the pressing force of the second clamping plate 42, at this time, the compression spring stores elastic potential energy, and the hitching mechanism 5 is in a use position.

As shown in fig. 1, 5A and 5B, when the curtain opening and closing device is required to be mounted on the U-shaped rail 7, first, the user pinches the shallow groove portions of the two clamping plates with one hand and simultaneously applies force to the first clamping plate 41 and the second clamping plate 42, the two clamping plates pivot to the open positions relative to the housing 1 along the respective rotation axes under the action of force, and the two torsion springs store elastic potential energy respectively. Meanwhile, the first slider 521 slides along the first sliding groove outside the first sliding hole 112 and extends from the first sliding hole 112 under the action of the elastic potential energy release of the compression spring, the second slider 531 slides along the second sliding groove outside the second sliding hole 122 and extends from the second sliding hole 122 under the action of the elastic potential energy release of the compression spring, and the first driven wheel 54 and the second driven wheel 55 are close to each other and are substantially in the same line along the length direction of the U-shaped rail 7, i.e., the hitching mechanism 5 is switched from the use position to the installation position. At this time, the user can lift the curtain opening and closing device to the position to be installed of the U-shaped rail 7, so that the first driven wheel 54 and the second driven wheel 55 enter the inside of the rail through the gap on the bottom surface of the U-shaped rail 7.

Referring next to fig. 2, 6A and 6B, after lifting to the position to be mounted, the user removes the force applied to the two clamping plates, and the first clamping plate 41 and the second clamping plate 42 pivot to a closed position relative to the housing 1 along respective axes of rotation under the urging of the torsion springs. Meanwhile, the first clamping plate 41 abuts against the first slider 521 to enable the first slider 521 to slide along the first sliding groove towards the inside of the first sliding hole 112, the second clamping plate 42 abuts against the second slider 531 to enable the second slider 531 to slide along the second sliding groove towards the inside of the second sliding hole 122 until the first clamping plate 41 and the second clamping plate 42 are respectively clung 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 far away from each other and respectively abut against one guide rail in the U-shaped track 7, namely the hanging mechanism 5 is switched from the installation position to the use position, and at the moment, the curtain opening and closing device is hung on the I-shaped track 8. In addition, the driving wheel is pressed against the lower side surface of the U-shaped track 7 at the moment, and the installation is completed.

It will be appreciated by those skilled in the art that although the above embodiment does not describe in detail how the driving roller assembly 2 is pressed against the underside of the U-shaped rail 7, this is not intended to be a representation of the present application. In contrast, in the prior art, after the curtain opening and closing device is installed, there are various different schemes how the driving roller assembly 2, especially the driving wheel, is pressed under the U-shaped rail 7, and those skilled in the art can flexibly select based on actual products. For example, the driving wheel can be pressed against the U-shaped track 7 by arranging a spring/shrapnel below the driving roller assembly 2; for example, the hooking mechanism 5 may be elastically connected to the housing 1.

The above arrangement has the advantages that: through setting up two splint for the curtain device that opens and shuts of this application convenient to use, the user only need be like using ordinary "clip" operation, can realize the installation and the dismantlement of device, simplify the mounting process of curtain device that opens and shuts greatly. And, the first clamping plate 41 and the second clamping plate 42 are symmetrically arranged at two sides of the shell 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 providing both the first and

second brackets

52, 53 to be slidable, both the first and second driven

wheels

54, 55 are movable, reducing the force applied by the user, and making the installation easier.

By dividing the housing 51 into the first and second sliding grooves using the upper and

lower boss structures

5111 and 5121, the movement stability of the first and

second brackets

52 and 53 can be improved, and the device mounting and dismounting accuracy can be ensured.

By providing the first elastic member 56, when the switch portion 4 pivots to the second position, the hitching mechanism 5 can be automatically switched to the mounting position, and the first clamping plate 41 and the second clamping plate 42 can also be pressed to a certain extent, so that the switch portion 4 is opened, and the force applied by the user is saved.

By forming the first and second limiting structures in the housing 51, the movement of the first and

second brackets

52, 53 can be limited, so that the compression spring stores a certain elastic potential energy, preventing the compression spring from being separated from the mounting base.

By providing the first accommodating groove 4112 and the second accommodating groove 4212 on the inner sides of the first clamping plate 41 and the second clamping plate 42 respectively, and providing the first shaft seat 4111 in the first accommodating groove 4112 and the third shaft seat 4211 in the second accommodating groove 4212, and providing the first through groove 114 and the second through groove 124 on the two sides of the housing 1 respectively, and providing the second shaft seat 113 and the fourth shaft seat in the first through groove 114 and the second through groove 124 respectively, the overall thickness of the device can be reduced, and the assembly and disassembly operations of the user can be facilitated.

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

By providing the first shallow groove 4121 and the second shallow groove at the outer lower portions of the first clamping plate 41 and the second clamping plate 42, respectively, the force application of the user is facilitated, and the operation difficulty is reduced.

By arranging the second elastic piece and the third elastic piece 43, the two clamping plates can rebound automatically, so that the installation 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 foregoing preferred embodiments are merely illustrative of the principles of the present application and are not intended to limit the scope of the present application. The above-mentioned setting modes can be adjusted by a person skilled in the art without departing from the principle of the present application, so that the present application can be applied to more specific application scenarios.

For example, although in the above embodiment, two clamping plates are provided in conjunction with the switch portion 4, and the first bracket 52 and the second bracket 53 in the hitching mechanism 5 are both movably described, this is only a preferred embodiment of the present application, and a person skilled in the art may adjust the above embodiment without departing from the principles of the present application, as long as the adjusted technical solution can realize that "when the switch portion 4 is switched from the first position to the second position, the hitching mechanism 5 can be switched from the use position to the installation position; when the switch unit 4 is reset from the second position to the first position, the operation mode of the hooking mechanism 5 can be switched from the installation 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 may reciprocate along the axial direction of the driving wheel, and the second bracket 53 may be fixedly disposed with respect to the housing 1, such as integrally formed with the housing 1, or clamped inside the housing 1, etc., and the first elastic member 56 may still be disposed between the two clamping plates, or may also be disposed 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 outside the first sliding hole 112 under the elastic force of the first elastic member 56, so as to switch the use position of the hooking mechanism 5 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 to enable the first slider 521 to slide inside the first sliding hole 112 along the first sliding groove, so as to switch the hooking mechanism 5 from the installation position to the use position. Of course, in this alternative embodiment, on the premise that the first bracket 52 is slidably provided, two clamping plates may be provided at the same time, but only one of the two clamping plates is matched with the first bracket 52.

In another alternative embodiment, the bracket and the clamping plate can be in transmission connection through the 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 examples, the first clamping plate 41 can be provided with a hinge hole, the first bracket 52 is correspondingly provided with a second hinge hole, 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 with the first hinge hole and the second hinge hole. In this way, during the pivoting process of the first clamping plate 41, the transmission rod drives the first slider 521 to slide reciprocally, so as to realize the switching of the hitching mechanism 5 between the installation position and the use position.

For another example, in another alternative embodiment, the hooking mechanism 5 may be disposed outside the housing 1, such as a rail disposed on the top of the housing 1, in addition to being disposed within the housing 1, and the first bracket 52 may be slidably disposed on the rail.

For example, in one possible implementation, although the foregoing embodiment is described in the case that the housing 1 includes the front housing 11 and the rear housing 12, this structural 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 provided as a unitary structure, an upper and lower split structure, or the like.

For another example, in an alternative embodiment, the pivoting arrangement of the two clamping plates is not exclusive, and the specific arrangement can be adjusted by a person skilled in the art, provided that the two clamping plates are able to pivot with respect to the housing 1, respectively. For example, two clamping plates may be pivotally provided on opposite sides of the housing 1 by the same rotation shaft. Specifically, taking the orientation shown in fig. 3 as an example, a common shaft seat may be respectively disposed in the middle of the upper edges 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 simultaneously pivotally connected with the common shaft seat. More specifically, the first shaft seat 4111 and the third shaft seat 4211 located at the left side of fig. 3 are pivotally connected to a common shaft seat disposed at the middle of the upper edge of the left side of the housing 1 through one short shaft, and the first shaft seat 4111 and the third shaft seat 4211 located at the right side of fig. 3 are pivotally connected to a common shaft seat disposed at the middle of the upper edge of the right side of the housing 1 through another short shaft.

For another example, in another alternative embodiment, the foregoing embodiment is described in connection with the power supply assembly 3 being disposed in the housing 1, but this embodiment is not limited thereto, and one skilled in the art may select whether the power supply assembly 3 is disposed or not, and may also adjust the specific manner of disposing the power supply assembly 3. For example, in some application scenarios, the curtain opening and closing device may not be provided with the power supply assembly 3, but an external power supply is used to supply power to the driving mechanism, for example, a charger, an external solar cell 31 panel, and the like, and only an interface needs to be correspondingly provided on the housing 1. For another example, on the premise of providing the power supply assembly 3, the power supply assembly 3 may include a circuit board 32 and a battery 31 compartment, where the battery 31 compartment is used for accommodating the dry battery 31.

As another example, in an alternative embodiment, instead of using a compression spring, the first resilient member 56 may be a leaf spring or a resilient rubber block, 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 torsion springs. In a possible embodiment, one or both of the second elastic member and the third elastic member 43 may be a compression spring, and two ends of the compression spring are respectively abutted between the clamping plate and the housing 1.

For another example, other components or structures in the above embodiments may be selectively modified or omitted by those skilled in the art on the basis of ensuring that the curtain opening and closing device has the housing 1, the driving roller assembly 2, and the switch portion 4, and the hitching mechanism 5 has the first bracket 52, the second bracket 53, the first driven wheel 54, and the second driven wheel 55. For example, the housing 51 of the hitching mechanism 5 may be omitted, the first elastic member 56 may be omitted, and the structures of the first housing groove 4112, the second housing groove 4212, the first shallow groove 4121, the second shallow groove, the narrowing of the side surface of the housing 1, etc. may be modified or omitted.

Of course, the alternative embodiments described above, as well as the alternative and preferred embodiments, may also be used in a cross-fit manner, thereby combining new embodiments to suit more specific application scenarios.

Next, referring to fig. 7A and 7B, a brief description will be given of the application of the curtain opening and closing device of the present application to the i-shaped track 8.

As shown in fig. 7A and 7B, unlike the above preferred embodiment, in the present embodiment, the specific arrangement of the hooking mechanism 5 is adjusted 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 hitching mechanism 5, both the first bracket 52 and the second bracket 53 can still reciprocate in the axial direction of the driving wheel. In the present embodiment, the first driven wheel 54 and the second driven wheel 55 are disposed in opposition to each other regardless of the mounting position or the use position of the hitch mechanism 5. In the above embodiment, 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 positions of the first support rod 522 and the second support rod 532 in the first slider 521 and the second slider 531 are only adjusted, and the positions of the first through hole 5115, the second through hole 5116 and the extending hole are correspondingly adjusted, so that the two driven wheels can be always arranged in opposite directions.

Next, a process of installing the window shade opening/closing device according to the present embodiment will be briefly described. As shown in fig. 7A, when an external force is applied such that the first clamping plate 41 and the second clamping plate 42 pivot to the open position with respect to the housing 1, the first slider 521 and the second slider 531 slide outside the first slide hole 112 and the second slide 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 are away from each other, i.e., the hitching mechanism 5 is switched from the use position to the installation position. At this time, the user can lift the curtain opening and closing device to the position to be mounted of the i-shaped rail 8, so that the bottom surface of the i-shaped rail 8 can 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 positions relative to the housing 1, the first clamping plate 41 presses the first slider 521 to enable the first slider 521 to slide along the first sliding groove towards the inside of the first sliding hole 112, the second clamping plate 42 presses the second slider 531 to enable the second slider 531 to slide along the second sliding groove towards the inside of the second sliding hole 122, the first driven wheel 54 and the second driven wheel 55 are close to each other and respectively press against one guide rail at the bottom of the i-shaped track 8, namely, 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 track 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-described preferred embodiment, the switch portion 4 is specifically formed as a button, in this embodiment, two buttons, that is, a first button 44 and a second button (not shown in the drawings), are provided, the first button 44 is fitted into a first fitting hole 115 formed in the front side surface of the front case 11 by a fourth elastic member, and the first button 44 partially protrudes into the front case 11. The second button is inserted into a second insertion hole provided at the rear side 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 action of an external force, and release the elastic potential energy and drive the first button 44 to return to the initial position when the external force is removed. Similarly, the fifth elastic member is configured to store elastic potential energy when the second button is pressed by an external force, and release and drive the second button to return to the initial position when the external force is removed. In other words, the initial position of the two buttons in the state where no external force is applied is the first position of the switch section 4, and the position where the two buttons are pressed is the second position 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 hooking mechanism 5 is slightly different from that of the above preferred embodiment. Specifically, the hitch mechanism 5 still employs the same components as in the preferred embodiment described above, except that the first resilient member 56 is compressed to store elastic potential energy when the hitch mechanism 5 is in the installed position, with the driven wheels in a state of being in close proximity to each other. In other words, when the switch portion 4 moves from the first position to the second position, that is, when the two buttons are pressed by the external force, the inner side surfaces of the two buttons respectively push the two sliding blocks to slide into the sliding groove, the sliding blocks make the two driven wheels approach each other, at this time, the first elastic member 56 is compressed to store elastic potential energy, and the hitching mechanism 5 is in the mounting 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 respectively jacked up under the action of the fourth elastic piece and the fifth elastic piece, the two sliding blocks respectively slide outwards of the sliding groove and respectively abut against the two buttons under the action of the elastic potential energy releasing of the first elastic piece 56, and at the moment, the first elastic piece 56 can store tiny elastic potential energy so as to keep the positions between the two sliding blocks relatively fixed. Of course, the two sliding blocks may not abut against the inner side surface of the button, and the first traveling key 56 is in the state of no elastic potential energy.

In the above arrangement, when the first button 44 and the second button are pressed by applying an external force, the first slider 521 and the second slider 531 slide into the first chute and the second chute, 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 hitching mechanism 5 is switched from the use position to the installation position, at which time the first elastic member 56 stores elastic potential energy. At this time, the user can lift the curtain opening and closing device to the position to be installed of the U-shaped rail, so that the first driven wheel 54 and the second driven wheel 55 enter the gap at the bottom of the U-shaped rail. When the external force is eliminated, the first button 44 and the second button spring up to the outside of the housing 1 under the release of the elastic potential energy of the compression spring, the first slider 521 slides to the outside along the first chute under the release of the elastic potential energy of the first elastic member 56, the second slider 531 slides to the outside along the second chute 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 pressed against one guide rail inside the U-shaped rail, that is, the hitching 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, the length of the first button 44 and the second button may be shortened, and a transmission plate may be disposed between the first button 44 and the first slider 521 to achieve a transmission connection therebetween, and a transmission plate may be disposed between the second button and the second slider 531 to achieve a transmission connection therebetween.

In an alternative embodiment, the first button 44 and the second button may be integrally disposed on the outer side of the housing 1, and the first sliding hole 112 and the second sliding hole 122 may be reserved, and then the switching between the use position and the installation position of the hitching mechanism 5 may be achieved by providing 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, the first slider 521 and the second slider 531 may be extended through the corresponding sliding holes on the premise of retaining the first sliding hole 112 and the second sliding hole 122, and then the first button 44 and the second button are integrally disposed on the outer side of the housing 1, and the two sliders slide by pressing the extended sliders during the pressing process of the buttons, so as to switch the hanging mechanism 5 between the use position and the installation position.

Of course, the expansion scheme in the above preferred embodiment is also applicable to this embodiment, for example, when only one bracket is reciprocally movable, only one button may be provided. For another example, the sliding block and the button can be hinged through a hinge rod to realize transmission.

It should be noted that, although only two embodiments are provided for the switch portion 4, it should be understood by those skilled in the art that the contribution to the prior art is embodied by adjusting the position of the hooking mechanism 5 by the simple switching action of the switch portion 4, so as to implement the installation of the device, and the protection scope thereof should not be limited to the two types of arrangement forms of the switch portion, and therefore, those skilled in the art may adopt other types of switch portions 4 to implement the technical object of the present application. For example, in a possible embodiment, the hitching mechanism 5 may also be driven by a toggle lever, a toggle block, or the like.

Those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present 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.

Thus far, the technical solution of the present application has 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 protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will be within the scope of the present application.

Claims

1. A curtain opening and closing device, characterized in that the curtain opening and closing device comprises:

a housing having a through hole formed at a top thereof;

2. The curtain opening and closing device according to claim 1, wherein the first bracket includes a first slider and a first strut, the top surface of the housing is provided with an extension hole, the lower end of the first strut is fixedly connected to the first slider, the upper end of the first strut extends out of the extension hole, the first driven wheel is rotatably disposed at the upper end of the first strut,

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

4. A curtain opening and closing device according to claim 3, wherein the hooking mechanism further comprises a first elastic element connected to the first and second slider respectively, the first elastic element being arranged to store elastic potential energy when the hooking mechanism is in the installed position.

5. The curtain opening and closing device according to claim 4, wherein the first slider is provided with a first mounting seat on a side surface close to the second slider, the second slider is provided with a second mounting seat on 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 window covering opening and closing device according to any one of claims 3 to 5, wherein the hooking mechanism further comprises a housing, the housing is disposed in the housing, a first through hole and a second through hole are disposed at a top of the housing, a first chute and a second chute are formed in the housing, the first strut extends from the first through hole, the second strut extends from the second through hole, the first slider is slidably disposed in the first chute, and the second slider is slidably disposed in the second chute.

7. The window covering opening and closing apparatus according to claim 6, wherein the housing includes an upper case and a lower case which are snap-coupled to each other,

8. The curtain opening and closing device according to claim 7, when indirectly referring to claim 5, wherein a first limiting structure and a second limiting structure are formed between the upper protruding structure and the lower protruding structure, a side surface, facing away from the first elastic element, of the first spring mounting seat can be abutted to the first limiting structure, and a side surface, facing away from the first elastic element, of the second spring mounting seat can be abutted to the second limiting structure.

9. The window covering opening and closing apparatus according to claim 2, wherein the opening and closing portion includes a first clamping plate and a second elastic member, a first sliding hole is formed in a first side of the housing,

10. The curtain opening and closing device according to claim 3, wherein the opening and closing part comprises 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,