CN215634784U

CN215634784U - Driving structure of curtain machine

Info

Publication number: CN215634784U
Application number: CN202120847063.6U
Authority: CN
Inventors: 杨玉秀
Original assignee: Guangzhou Aotewei Motor Co ltd
Current assignee: Guangzhou Aotewei Motor Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-01-25
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a driving structure of a curtain machine, comprising: the transmission shaft is driven by the driver to rotate; the transmission shaft is provided with a first transmission wheel and a second transmission wheel; the control component is used for driving the transmission shaft to move along the axial direction, so that the transmission shaft is only inserted into the holes of the first transmission wheel or is simultaneously inserted into the holes of the first transmission wheel and the second transmission wheel; the self-locking component comprises an insertion block and a first elastic piece for driving the insertion block to move; when the transmission shaft is separated from the second transmission wheel, the insert block is inserted in the hole of the second transmission wheel. The first driving wheel is selectively driven to rotate or the first driving wheel and the second driving wheel are driven to rotate simultaneously through a driver, and the second driving wheel is self-locked through the self-locking component, so that the curtain machine only performs vertical curtain turning motion or only performs opening and closing motion.

Description

Driving structure of curtain machine

Technical Field

The utility model relates to the technical field of curtain machines, in particular to a driving structure of a curtain machine.

Background

With the development of science and technology, a curtain machine capable of electrically controlling a curtain appears; the curtain machine comprises a curtain machine for controlling vertical curtains, wherein the conventional vertical curtain machine generally connects the vertical curtains to pulleys, then a plurality of pulleys are arranged on a curtain rail in a sliding way and drive the pulleys to move through a belt; in addition, the light adjusting shaft penetrates through the plurality of pulleys, and the vertical curtain is driven to turn over the sheet by rotating the light adjusting shaft; wherein, the belt and the light adjusting shaft need to be driven by one motor respectively, and the light adjusting shaft is of a rigid structure, so that the curtain machine cannot be in a bent rail type.

The bendable rail vertical curtain control device integrating the turning, opening and closing functions and having the publication number of CN112554765A comprises a rail, a double-gear transmission mechanism, a plurality of bead moving mechanisms and a driving mechanism, wherein the bead moving mechanisms are slidably mounted on the rail, the double-gear transmission mechanisms are arranged at two ends of the rail, and the double-gear transmission mechanisms are used for dragging double belts. The driving mechanism is arranged on the double-gear transmission mechanism, and because the driving mechanism has two-stage stroke, when the first stroke of the driving head of the driving mechanism extends into the first gear of the double-gear transmission mechanism, the turnover of the vertical curtain is realized; when the second stroke of the driving head extends into the second gear, the driving head is simultaneously meshed with the first gear and the second gear, and the vertical curtain is turned over and opened and closed. However, although the flexible rail vertical curtain machine can realize the functions of opening, closing and turning the curtain by driving the two belts through one motor, the structures of the driving mechanism and the double-gear transmission mechanism are complex and need to be improved; in addition, the vertical curtain machine with the bendable rails can perform the action of turning over the vertical curtain sheets or simultaneously perform the actions of turning over the vertical curtain sheets and opening and closing the vertical curtain; the vertical curtain can not be opened or closed and the vertical curtain can not be turned over, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a driving structure of a curtain machine, which can solve at least one of the above problems to some extent.

The technical scheme of the utility model is realized as follows:

a driving structure of curtain machine includes:

the transmission shaft is driven by the driver to rotate; the transmission shaft is provided with a first transmission wheel and a second transmission wheel, and the first transmission wheel and the second transmission wheel are respectively provided with a hole which is sleeved with the transmission shaft and has a regular polygon cross section;

the control component is used for driving the transmission shaft to move along the axial direction, and the control component enables the transmission shaft to be only inserted into the holes of the first transmission wheel or simultaneously inserted into the holes of the first transmission wheel and the second transmission wheel;

the self-locking component comprises an inserting block and a first elastic piece for driving the inserting block to be inserted into the hole of the second transmission wheel; when the transmission shaft is separated from the second transmission wheel, the insert block is inserted in the hole of the second transmission wheel.

As a further alternative of the driving structure of the curtain machine, the curtain machine comprises a driving shell, wherein the transmission shaft is rotatably arranged in the driving shell, a limit hole is arranged on the side wall of the driving shell corresponding to one end of the transmission shaft, and the insertion block is slidably arranged in the limit hole; when the inserting block is inserted into the hole of the second driving wheel, part of the inserting block is still positioned in the limiting hole.

As a further alternative of the driving structure of the curtain machine, the first elastic member is a spring, the first elastic member is located in the limiting hole, one end of the first elastic member abuts against the bottom of the limiting hole, and the other end of the first elastic member abuts against the insertion block.

As a further alternative of the driving structure of the curtain machine, the control member comprises an electromagnetic clutch device and a second elastic piece arranged at one end of the transmission shaft; when the electromagnetic clutch device is electrified, the transmission shaft is driven to be only inserted into the hole of the first transmission wheel; when the electromagnetic clutch device is powered off, the second elastic piece drives the transmission shaft to move axially so as to be inserted into the hole of the second transmission wheel.

As a further alternative of the driving structure of the curtain machine, the second elastic member is a spring, one end of the second elastic member abuts against the inner wall of the driving housing, and the other end abuts against the end of the transmission shaft; one end of the transmission shaft, which is far away from the second elastic piece, is abutted against the insert block; when the transmission shaft is inserted into the hole of the second transmission wheel, the transmission shaft ejects the insertion block out of the hole of the second transmission wheel.

As a further alternative of the driving structure of the window curtain machine, the elastic force of the second elastic member is greater than that of the first elastic member.

As a further alternative of the driving structure of the curtain machine, the first driving wheel and the second driving wheel are rotatably disposed in the driving housing through bearings, and the positions of the first driving wheel and the second driving wheel in the driving housing are fixed.

As a further alternative of the driving structure of the curtain machine, the driver is a motor.

As a further alternative of the driving structure of the curtain machine, the motor is connected with a driving gear, a driven gear is sleeved on the transmission shaft, and the driving gear is meshed with the driven gear; the driven gear is rotatably arranged in the driving shell through a bearing, and the position of the driven gear in the driving shell is fixed.

As a further alternative of the driving structure of the curtain machine, the first driving wheel is connected with a first driving belt in a driving mode, and the second driving wheel is connected with a second driving belt in a driving mode.

As a further alternative of the driving structure of the curtain machine, the first driving belt is connected with a first driven wheel in a driving way, and the second driving belt is connected with a second driven wheel in a driving way; the second driven wheel and the first driven wheel are sequentially sleeved on a vertically arranged limiting shaft from top to bottom, and a differential type clutch structure is formed between the first driven wheel and the second driven wheel; a dimming hanging piece used for connecting a vertical curtain is arranged below the first driven wheel; the end part of the dimming hanging piece forms a transmission tooth part;

when the rotating speed of the first driven wheel is greater than that of the second driven wheel, the first driven wheel moves in the axial direction to be far away from the second driven wheel, so that the first driven wheel is in transmission connection with the transmission tooth part to drive the dimming hanging piece to rotate;

when the rotating speed of the first driven wheel is equal to that of the second driven wheel, the first driven wheel is driven by a reset mechanism to be close to the second driven wheel, so that the first driven wheel is separated from the transmission tooth part.

The utility model has the following beneficial effects: the first driving wheel is selectively driven to rotate or the first driving wheel and the second driving wheel are driven to rotate simultaneously through a driver, and the second driving wheel is self-locked through the self-locking component, so that the curtain machine only performs vertical curtain turning motion or only performs opening and closing motion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a driving structure of a curtain machine;

fig. 2 is a schematic view of an internal structure of a driving structure of a curtain machine;

FIG. 3 is a schematic structural view of the second driven wheel;

FIG. 4 is a schematic structural view of the first driven wheel;

fig. 5 is a schematic diagram of the first driven wheel and the dimming pendant in cooperation;

fig. 6 is another structural schematic diagram of a driving structure of a curtain machine.

Wherein: 1. a driver; 11. a driving gear; 2. a drive shaft; 21. a first drive pulley; 211. a first drive belt; 22. a second transmission wheel; 221. a second belt; 23. a driven gear; 3. a control member; 31. an electromagnetic clutch device; 32. a second elastic member; 4. a self-locking member; 41. inserting a block; 42. a first elastic member; 5. a drive housing; 51. a limiting hole; 6. a first driven wheel; 61. a differential block; 611. a bevel; 62. a first magnetic block; 7. a second driven wheel; 71. a differential bore; 72. a second magnetic block; 8. a limiting shaft; 81. positioning blocks; 82. a return spring; 9. a dimming hanging part; 91. the driving tooth part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, a driving structure of a curtain machine is shown, including a driver 1 and a transmission shaft 2 driven by the driver 1 to rotate, wherein the transmission shaft 2 is provided with a first transmission wheel 21 and a second transmission wheel 22; in order to enable the transmission shaft 2 to move axially relative to the first transmission wheel 21 and the second transmission wheel 22 and enable the transmission shaft 2 to drive the first transmission wheel 21 and the second transmission wheel 22 to rotate, the first transmission wheel 21 and the second transmission wheel 22 are respectively provided with a hole which is sleeved with the transmission shaft 2 and has a regular polygon cross section;

in particular, with reference to fig. 2, the transmission shaft 2 is axially moved by the control member 3, so that the transmission shaft 2 is selectively inserted in the holes of the first transmission wheel 21 only or in the holes of the first transmission wheel 21 and the second transmission wheel 22 simultaneously; the first driving wheel 21 is connected with a first driving belt 211 for controlling the turning of the vertical curtain, and the second driving wheel 22 is connected with a second driving belt 221 for controlling the opening and closing of the vertical curtain; thus, by moving the transmission shaft 2, the curtain machine can be controlled by one driver 1 to only perform the action of turning the vertical curtain sheet or simultaneously perform the actions of turning the vertical curtain sheet and opening and closing the vertical curtain sheet; the driver 1 is a motor, the driver 1 is connected with a driving gear 11, a driven gear 23 is sleeved on the transmission shaft 2, and the driving gear 11 is meshed with the driven gear 23; so that the driver 1 can drive the transmission shaft 2 to rotate. The control member 3 may be an electromagnet in a flexible vertical curtain control device disclosed in CN112554765A, and the position of the transmission shaft 2 is changed by energizing the electromagnet.

In practical application, referring to the electric curtain machine with publication number CN212898267U, the motor is installed at one side of the curtain rail of the curtain machine, and to achieve the aesthetic effect, the motor is installed at one side of the curtain rail close to the wall, so that the curtain rail shields the motor; in practice, the connection socket may be located on the left or right of the window, so the motor needs to be installed on the left or right of the curtain rail to achieve power connection, and the electric curtain machine with publication number CN212898267U needs to open two sets of dies to correspondingly achieve the arrangement of the motor on the left or right of the transmission shaft. Referring to fig. 1 and 6, the driving structure of the present invention enables the driver to be installed on the left or right side of the driving shaft by opening one set of mold.

As a matter of course, for ease of assembly, with reference to fig. 2, the drive shaft 2 is rotatably disposed within the drive housing 5; the first driving wheel 21, the second driving wheel 22 and the driven gear 23 are rotatably arranged in the driving shell 5 through bearings, and the positions of the first driving wheel 21, the second driving wheel 22 and the driven gear 23 in the driving shell 5 are fixed; in this way, when the transmission shaft 2 moves in the axial direction, the first transmission wheel 21 and the second transmission wheel 22 do not move accordingly.

In order to realize the turning and opening and closing of the vertical curtain simply, referring to fig. 2-5, the first driving belt 211 is in driving connection with a first driven wheel 6, and the second driving belt 221 is in driving connection with a second driven wheel 7; the second driven wheel 7 and the first driven wheel 6 are sequentially sleeved on a vertically arranged limiting shaft 8 from top to bottom, and a differential clutch structure is formed between the first driven wheel 6 and the second driven wheel 7; a dimming hanging piece 9 for connecting a vertical curtain is arranged below the first driven wheel 6; the end of the light-adjusting pendant 9 forms a driving tooth 91.

Referring to fig. 3 and 4, the differential clutch structure includes a differential block 61 provided on the first driven wheel 6 and a differential hole 71 provided on the second driven wheel 7, the differential block 61 is provided at an eccentric position on an end surface of the first driven wheel 6 facing the second driven wheel 7, and the differential hole 71 is provided on an end surface of the second driven wheel 7 facing the first driven wheel 6; two end surfaces of the differential block 61 in the rotation direction are inclined surfaces 611, and the position and shape structure of the differential hole 71 are adapted to the differential hole 71.

Specifically, when the transmission shaft 2 is only inserted into the hole of the first transmission wheel 21, the transmission shaft 2 only drives the first transmission wheel 21 to rotate and does not drive the second transmission wheel 22 to rotate, and the first transmission wheel 21 drives the first driven wheel 6 to rotate through the first transmission belt 211; the rotation speed of the first driven wheel 6 is greater than that of the second driven wheel 7, under the guiding action of the inclined surface 611 of the differential block 61, the differential block 61 is disengaged from the differential hole 71, and the first driven wheel 6 moves in the axial direction to be away from the second driven wheel 7, so that the first driven wheel 6 is in transmission connection with the transmission tooth part 91 to drive the dimming hanging piece 9 to rotate, and the flap of the vertical curtain on the dimming hanging piece 9 is realized;

in contrast, when the transmission shaft 2 is simultaneously inserted into the holes of the first transmission wheel 21 and the second transmission wheel 22, the transmission shaft 2 simultaneously drives the first transmission wheel 21 and the second transmission wheel 22 to rotate, so that the first driven wheel 6 and the second driven wheel 7 synchronously rotate, the differential block 61 and the differential hole 71 cannot be separated, and under the driving of the reset mechanism, the first driven wheel 6 axially moves to be close to the second driven wheel 7, so that the first driven wheel 6 is separated from the transmission tooth part 91; thus, the vertical curtain cannot be turned; in addition, the first driving wheel 21, the second driven wheel 7, the limit shaft 8 and the dimming hanging piece 9 are all arranged on a pulley (not shown), and the pulley is fixedly connected with the second driving belt 211; under the driving of the second driving belt 211, the pulley moves on the curtain rail of the curtain machine, so as to realize the opening and closing of the vertical curtain. Therefore, the vertical curtain turning piece and the vertical curtain are controlled to open and close separately, and the use is more convenient.

In the above embodiment, when the transmission shaft 2 is only inserted into the hole of the first transmission wheel 21, the second transmission wheel 22 needs to be locked, otherwise, when the first driven wheel 6 rotates, the second driven wheel 7 may be driven by the first driven wheel 6 to rotate, and the differential block 61 cannot be disengaged from the differential hole 71, so that the first driven wheel 6 cannot be in transmission connection with the transmission tooth 91, and thus the vertical curtain flipping cannot be achieved. It is therefore necessary to self-lock said second transmission wheel 22 by means of the self-locking member 4.

In particular, with reference to fig. 2, the self-locking member 4 comprises an insertion block 41 and a first elastic element 42 for driving the insertion block 41 to be inserted in the hole of the second transmission wheel 22; a limiting hole 51 is formed in the side wall of the driving shell 5 corresponding to one end of the transmission shaft 2, and the inserting block 41 is slidably arranged in the limiting hole 51; the first elastic member 42 is a spring, the first elastic member 42 is located in the limiting hole 51, one end of the first elastic member 42 abuts against the bottom of the limiting hole 51, and the other end abuts against the insert block 41. In this way, when the transmission shaft 2 is pulled out of the hole on the second transmission wheel 22, the first elastic element 42 drives the insertion block 41 to be inserted into the hole on the second transmission wheel 22, and at this time, a part of the insertion block 41 is still located in the limiting hole 51; the limiting block limits the insert 41 from rotating, and the insert 41 limits the second transmission wheel 22 from rotating.

In some particular embodiments, with reference to fig. 2, for cooperating with said self-locking member 4, a control member 3 is provided; the control component 3 comprises an electromagnetic clutch device 31 and a second elastic piece 32 arranged at one end of the transmission shaft 2; when the electromagnetic clutch device 31 is electrified, the transmission shaft 2 is driven to be only inserted into the hole of the first transmission wheel 21; when the electromagnetic clutch device 31 is powered off, the second elastic element 32 drives the transmission shaft 2 to move axially so as to be inserted into the hole of the second transmission wheel 22. The second elastic element 32 is a spring, one end of the second elastic element 32 is abutted against the inner wall of the driving shell 5, and the other end is abutted against the end part of the transmission shaft 2; one end of the transmission shaft 2, which is far away from the second elastic piece 32, is abutted against the insert block 41; when the transmission shaft 2 is inserted into the hole of the second transmission wheel 22, the transmission shaft 2 pushes the insertion block 41 out of the hole of the second transmission wheel 22. Wherein the elastic force of the second elastic member 32 is greater than the elastic force of the first elastic member 42. In addition, in order to prevent the second elastic member 32 from ejecting the transmission shaft 2 too far, a shoulder (not labeled in the figure) may be disposed on the transmission shaft 2, and the shoulder is limited by the driven gear 23 fixed in the driving housing 5, so as to prevent the transmission shaft 2 from being ejected too far.

In the above embodiment, in order to facilitate the first driven wheel 6 to be disconnected from the transmission tooth portion 91, referring to fig. 3 to 5, the reset mechanism includes a first magnetic block 62 disposed on an end surface of the first driven wheel 6 facing the second driven wheel 7, and a second magnetic block 72 disposed on an end surface of the second driven wheel 7 facing the first driven wheel 6; when the first magnetic block 62 corresponds to the second magnetic block 72, the differential block 61 corresponds to the differential hole 71. In addition, the reset mechanism may further include a reset spring 82 disposed below the first driven wheel 6 and sleeved on the limit shaft 8; a positioning block 81 is arranged on the limiting shaft 8, one end of the return spring 82 is abutted against the bottom of the first driven wheel 6, and the other end of the return spring is abutted against the positioning block 81. Wherein the return spring 82 can assist the first driven wheel 6 to move axially close to the second driven wheel 7.

In some specific embodiments, in order to facilitate the first driven wheel 6 to drive the dimming hanging piece 9 to rotate, a connecting structure is provided; the transmission tooth part 91 on the dimming pendant 9 is a cylindrical gear, the first driven wheel 6 is a cylindrical gear, and the side surface of the first driven wheel 6 is meshed with the transmission tooth part 91; the second transmission belt 221 is a synchronous belt, and the side surface of the first driven wheel 6 is in transmission connection with the second transmission belt 221.

In some specific embodiments, another connection structure is provided to facilitate the first driven wheel 6 to drive the dimming hanging piece 9 to rotate; referring to fig. 2 and 5, the transmission tooth 91 on the pendant light adjuster 9 is a bevel gear, a bevel gear is formed on the lower end surface of the first driven wheel 6, and the bevel gear on the lower end surface of the first driven wheel 6 is engaged with the transmission tooth 91; the side surface of the first driven wheel 6 is in transmission connection with the second transmission belt 221. With this coupling structure, the first driven pulley 6 and the driving tooth portion 91 are more easily engaged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A driving structure of a curtain machine is characterized by comprising:

2. The driving structure of a curtain machine as claimed in claim 1, comprising a driving housing, wherein the driving shaft is rotatably disposed in the driving housing, a limiting hole is disposed on a side wall of the driving housing corresponding to one end of the driving shaft, and the insertion block is slidably disposed in the limiting hole; when the inserting block is inserted into the hole of the second driving wheel, part of the inserting block is still positioned in the limiting hole.

3. The driving structure of a curtain machine as claimed in claim 2, wherein the first elastic member is a spring, the first elastic member is located in the limiting hole, and one end of the first elastic member abuts against the bottom of the limiting hole while the other end abuts against the insert block.

4. The driving structure of a curtain machine as claimed in claim 2, wherein the control member includes an electromagnetic clutch device and a second elastic member disposed at one end of the transmission shaft; when the electromagnetic clutch device is electrified, the transmission shaft is driven to be only inserted into the hole of the first transmission wheel; when the electromagnetic clutch device is powered off, the second elastic piece drives the transmission shaft to move axially so as to be inserted into the hole of the second transmission wheel.

5. The driving structure of a curtain machine as claimed in claim 4, wherein the second elastic member is a spring, one end of the second elastic member abuts against the inner wall of the driving housing, and the other end abuts against the end of the transmission shaft; one end of the transmission shaft, which is far away from the second elastic piece, is abutted against the insert block; when the transmission shaft is inserted into the hole of the second transmission wheel, the transmission shaft ejects the insertion block out of the hole of the second transmission wheel.

6. The driving structure of window curtain machine as claimed in claim 5, wherein the second elastic member has an elastic force greater than that of the first elastic member.

7. The driving structure of a curtain machine as claimed in claim 2, wherein the first driving wheel and the second driving wheel are rotatably disposed in the driving housing through bearings, and the positions of the first driving wheel and the second driving wheel in the driving housing are fixed.

8. The driving structure of a curtain machine as claimed in claim 7, wherein the driver is connected with a driving gear, the transmission shaft is sleeved with a driven gear, and the driving gear is engaged with the driven gear; the driven gear is rotatably arranged in the driving shell through a bearing, and the position of the driven gear in the driving shell is fixed.

9. The driving structure of curtain machine as claimed in claim 1, wherein the first driving wheel is connected to the first driving belt, and the second driving wheel is connected to the second driving belt.

10. The driving structure of a curtain machine as claimed in claim 9, wherein the first driving belt is connected with a first driven wheel in a driving manner, and the second driving belt is connected with a second driven wheel in a driving manner; the second driven wheel and the first driven wheel are sequentially sleeved on a vertically arranged limiting shaft from top to bottom, and a differential type clutch structure is formed between the first driven wheel and the second driven wheel; a dimming hanging piece used for connecting a vertical curtain is arranged below the first driven wheel; the end part of the dimming hanging piece forms a transmission tooth part;