CN112617571A

CN112617571A - Track switching device and electric vertical curtain applying same

Info

Publication number: CN112617571A
Application number: CN202011621954.6A
Authority: CN
Inventors: 孙勇; 俞锡鹏; 鲍永林; 翁建君
Original assignee: Martin Zhejiang Intelligent Technology Co ltd
Current assignee: Martin Zhejiang Intelligent Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-04-09

Abstract

The invention discloses a track switching device, which is characterized in that: including casing, setting drive mechanism in the casing and be used for with track complex transmission round pin, drive mechanism's input is power input end, drive mechanism's output then with the transmission pin junction, drive mechanism's input and the rotation direction mutually perpendicular of output. Also disclosed is a motorized vertical blind to which the rail transit apparatus as described above is applied. Compared with the prior art, the invention has the advantages that: the rail switching device with 90-degree steering is convenient to modify into an electrically operated rail on the basis of a manually operated rail with lower cost, and is convenient to install.

Description

Track switching device and electric vertical curtain applying same

Technical Field

The invention relates to a curtain, in particular to a track switching device and an electric vertical curtain applying the track switching device.

Background

The vertical curtain adopts a swinging structure, so that the curtain sheet can move left and right to realize the folding and unfolding of the vertical curtain, and the curtain sheet can also be turned to change the light transmission direction. The vertical curtain has wider and wider application range because the vertical curtain can adjust indoor light, ventilate and can also shade sun.

The current vertical curtain is mainly divided into a manual curtain and an electric curtain. The utility model relates to a manual chinese patent with application number 201220160105.X discloses a vertical curtain opening and closing device, which comprises an end cover, a track, a belt, a plurality of sliding units and a transmission mechanism, wherein the transmission mechanism is arranged inside the end cover and comprises a driven mechanism and a driving mechanism, the driven mechanism comprises a first bearing, a belt gear, a driven gear and a second bearing from top to bottom, the driven mechanism is connected into a whole through a first gear shaft, the belt bypasses the belt gear, and a through hole on the belt is meshed with the belt gear; the driving mechanism comprises a third bearing, a main gear and a fourth bearing from top to bottom, the main gear and the driven gear are connected into a whole through a second gear shaft, the main gear is meshed with the driven gear, the second gear shaft penetrates through the end cover sealing cover and is connected with the handle through a universal connecting shaft device, and the rotation of the handle drives the rotation of the main gear and the driven gear, so that the rotation of the belt is driven.

Electric chinese patent as application number 201820313025.0 discloses a vertical curtain of manual opening and shutting, electronic adjusting luminance, including the track with set up the actuating mechanism in track one end, be equipped with in the track and be used for driving curtain piece pivoted axle of adjusting luminance, actuating mechanism includes the motor of being connected with the transmission of adjusting luminance axle, the track both ends are equipped with first guide pulley and second guide pulley respectively, around being equipped with the stay cord that drives the translation of curtain piece on first guide pulley and the second guide pulley, the stay cord extends from the track and supplies manually operation.

With the development of smart homes, more and more places have generated the demand for refitting manual curtains into electric curtains. Since the vertical curtain is formed by independent curtain pieces, the vertical curtain can rotate around the vertical axis, and therefore, the motor is generally required to be transversely arranged on the side of the track. When the manual vertical curtain is modified, the transmission shaft extends in the vertical direction, and if the motor is vertically arranged, the motor is collided during the rotation process of the vertical curtain sheet positioned at the end part of the track, so that the original manual vertical curtain can only be completely disassembled, the cost is greatly improved, the installation period is prolonged, and a lot of inconvenience is brought; in addition, because the curtain piece of the vertical curtain can not shield the motor, the motor is exposed, so that the overall appearance of the vertical curtain is not attractive.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a track switching device aiming at the defects in the prior art, which is convenient for reconstructing an electric vertical curtain on the basis of the existing manual curtain, and has low cost and convenient installation.

The second technical problem to be solved by the present invention is to provide an electric vertical curtain using the above-mentioned rail adapter.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a track switching device is characterized in that: including casing, setting drive mechanism in the casing and be used for with track complex transmission round pin, drive mechanism's input is power input end, drive mechanism's output then with the transmission pin junction, drive mechanism's input and the rotation direction mutually perpendicular of output.

Preferably, the transmission mechanism includes a first bevel gear having a first rotation shaft as an input end of the transmission mechanism, a second bevel gear and a straight gear set, the first and second bevel gears being engaged with each other, the straight gear set having a primary gear and a final gear, the primary gear being coaxially disposed with the second bevel gear, the final gear being connected to the transmission pin to rotate synchronously.

In order to facilitate connection of the transmission mechanism and the transmission pin, a second connection groove serving as an output end of the transmission mechanism is formed in the last-stage gear in a concave mode from the circumferential outer side to the middle, and the transmission pin can be clamped into the second connection groove.

In order to facilitate the guide of the transmission pin to be inserted into the second connecting groove, the second connecting groove is formed in the tooth of the final gear, an end plate is arranged on the axial end face of the final gear, the second connecting groove penetrates through the end plate in the axial direction of the final gear, a notch is formed in the part, located on the periphery of the second connecting groove, of the end plate, the outer side of the notch penetrates through the peripheral edge of the end plate, the inner side of the notch penetrates through the second connecting groove, and the two sides of the notch in the circumferential direction are inclined and extend oppositely from the outside to the inside to form a horn shape.

In order to facilitate the synchronous rotation of the second connecting groove and the transmission pin, the transmission pin is a flat shaft, and the shape of the second connecting groove is matched with that of the transmission pin.

Preferably, the second bevel gear has a second rotation axis, the first and second rotation axes being perpendicular to each other, the second rotation axis being parallel to the drive pin.

Preferably, in order to facilitate the insertion of the rail and the driving pin into the housing, an opening is formed in a side surface of the housing, and the opening is formed corresponding to the final gear.

The technical scheme adopted by the invention for solving the second technical problem is as follows: an electric vertical curtain to which the rail switching device as described above is applied, comprising a rail for hanging a manually operated vertical curtain and a driving mechanism having an output shaft, characterized in that: the track switching device is arranged at the end of the track, an output shaft of the driving mechanism is connected with an input end of the transmission mechanism, and the driving mechanism is arranged on the side face of the track, so that the output shaft and the track extend in the same direction.

Preferably, the driving pin is disposed on the bottom surface of the end portion of the rail and vertically extends downward, and the end portion of the rail can penetrate into the housing, so that the driving pin can be connected with the output end of the driving mechanism.

Preferably, in order to facilitate the stable connection between the output shaft of the driving mechanism and the transmission mechanism, a support end cover is arranged on the side surface of the housing facing the driving mechanism, and the output shaft of the driving mechanism penetrates through the support end cover to be connected with the input end of the transmission mechanism.

Compared with the prior art, the invention has the advantages that: the 90-degree steering track switching device is arranged, so that the track switching device can be conveniently modified into an electrically operated track on the basis of a manually operated track at lower cost, the track does not need to be selected and matched again, and the installation is convenient; the driving mechanism (power device) is arranged on the side surface of the track, and the vertical arrangement of a common curtain motor is replaced, so that the motor is prevented from being collided when the vertical curtain sheet on the track moves and is swayed by external force, and the attractiveness of the overall appearance of the electric curtain can be improved.

Drawings

FIG. 1 is a schematic view of a motorized vertical shade of an embodiment of the present invention (the track is shown only partially);

FIG. 2 is an exploded view of the motorized vertical shade of an embodiment of the present invention (the track is shown only partially);

FIG. 3 is a schematic view of a rail transit apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic view of a track according to an embodiment of the invention;

FIG. 5 is a schematic exploded view of a track adapter according to an embodiment of the present invention (hidden top cover);

FIG. 6 is a schematic view of a drive mechanism of the track adapter of an embodiment of the present invention;

FIG. 7 is a partial cross-sectional view of a track adapter and track in accordance with an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, an electric vertical curtain comprises a track 1, a track adapter 2 and a driving mechanism 3, wherein the track 1 is a track of an existing manual vertical curtain and can be used for hanging the vertical curtain. For the sake of clarity of the solution according to the invention, only the end portions of the rails in the length direction are shown in the figures. The drive mechanism 3, which in this embodiment is a motor, has an output shaft 31. The output shaft 31 extends in a transverse direction, preferably, in a horizontal direction.

Referring to fig. 3 to 7, the rail transit device 2 includes a housing 21, a driving mechanism 22 provided in the housing 21, and a driving pin 23, the driving pin 23 being provided at an end bottom surface of the rail 1 and vertically extending downward. Common manual orbital tip drive wheel does not have drive pin 23, can replace original drive wheel for the drive wheel that has inserted drive pin 23, drive wheel and drive pin can coaxial rotation promptly, and corresponding track end cover replacement is for being provided with and supplies drive pin 23 through hole, makes original manual track can satisfy the demand that the electric drive is connected through simple and easy transformation. The housing 21 may be hollow with an open top, and a top cover 24 may be detachably provided on the top to mount the transmission mechanism 22 in the housing 21. One side surface (the side surface facing the rail 1 in the mounting state) of the housing 21 is provided with a supporting end cover 25, an opening 211 is formed at the position adjacent to the supporting end cover 25 on the same side surface, and the size and the shape of the opening 211 are matched with the end part of the rail 1, so that the end part of the rail 1 is inserted into the housing 21.

Drive mechanism 22 adopts the drive gear group, and drive mechanism 3's output shaft 31 and the transmission pin 23 on the track 1 are connected to drive mechanism 22's input to rotate (the axis of rotation is self axis, is the level) with output shaft 31 on the vertical face and convert transmission pin 23 and rotate on the horizontal plane (the axis of rotation is self axis, is vertical).

Preferably, the transmission mechanism 22 includes a first bevel gear 221, a second bevel gear 222, and a spur gear set 223, and the primary gear 2231 of the spur gear set 223 is coaxially disposed with the second bevel gear 222. The first and

second bevel gears

221 and 222 are engaged with each other, the first bevel gear 221 has a first rotating shaft 2211, the second bevel gear 222 has a second rotating shaft 2221, the first rotating shaft 2211 and the second rotating shaft 2221 are perpendicular to each other, and in the mounted state, the first rotating shaft 2211 extends horizontally and is coaxial with the output shaft 31 of the driving mechanism 3, and the second rotating shaft 2221 extends vertically and is parallel to the transmission pin 23.

The first rotating shaft 2211 may extend out of the housing 21 into the support end cover 25, the output shaft 31 of the driving mechanism 3 may extend into the support end cover 25, and the support end cover 25 may support the output shaft 31 and the first rotating shaft 2211 such that the output shaft 31 and the first rotating shaft 2211 are stably rotated. One end of the first rotating shaft 2211 facing the output shaft 31 is recessed in a direction away from the output shaft 31 to form a first connecting groove 2212, and the output shaft 31 is inserted into the first connecting groove 2212 and fixed. Thus, the first coupling groove 2212 serves as an input end of the transmission mechanism 22, and couples the output shaft 31 and the transmission mechanism 22 to input power. Of course, the output shaft 31 and the first rotating shaft 2211 may be directly connected in the housing 21.

The spur gear set 223 includes a primary gear 2231 receiving an input of the second bevel gear 222 and a final gear 2232 outputting power, which serves as both the primary gear and the final gear when the spur gear set 2231 has only one gear. In the present embodiment, three gears are included, and in addition to the above-described primary gear 2231 and final gear 2232, an intermediate gear 2233 disposed between the primary gear 2231 and final gear 2232 meshes with the primary gear 2231 and final gear 2232, respectively, so that the rotation of the primary gear 2231 is transmitted to the final gear 2232. The intermediate gear 2233 may be a single drive gear or a set of drive gears for adjusting the drive ratio to enable it to adapt to drive window covering tracks requiring different force inputs. The rotational axis of each gear of the spur gear set 223 may be rotatably connected with the housing 21, and the rotational axis of each gear may extend vertically. The opening 211 of the housing 21 is opened in correspondence with the final gear 2232, so that not only the rail 1 but also the driving pin 23 can be inserted into the housing 21.

The final stage gear 2232 is formed with a second coupling groove 2234 recessed from a circumferential outer side to a middle, the second coupling groove 2234 being formed on the teeth of the final stage gear 2232. An end plate 2235 is provided on an axial end surface (a surface opposite to the bottom surface of the rail 1, i.e., an upper end surface in the mounted state) of the final stage gear 2232, and a second coupling recess 2234 extends through the end plate 2235 in the axial direction of the final stage gear 2232. A notch 2236 is formed in a portion of the end plate 2235 located at the outer periphery of the second connecting groove 2234, an outer side of the notch 2236 extends through the outer peripheral edge of the end plate 2235, and an inner side of the notch 2236 extends through the second connecting groove 2234. The two circumferential sides of the notch 2236 are inclined and extended gradually toward each other from the outside to the inside to form a trumpet-shaped notch 2236, so as to play a guiding role when the driving pin 23 is inserted. Here, "outer" refers to a position near the periphery, and "inner" refers to a position near the middle.

The driving pin 23 is a flat shaft, and the second coupling groove 2234 is shaped to fit the driving pin 23. When the rail adapter 2 is coupled to the rail 1, the end of the rail 1 is inserted into the housing 21 from the opening 211 of the housing 21, and the driving pin 23 enters the second coupling groove 2234 along the notch 2236, and engages with the second coupling groove 2234 to rotate synchronously with the final gear 2232. The second coupling recess 2234 thus serves as an output of the actuator 22, coupling the actuator 22 to the actuator pin 23. While the driving pin 23 is used for the gear shaft connection with the driving pulley originally provided in the track 1.

With the track adapter 2, the driving mechanism 3 can be disposed on the side surface of the track 1 in parallel, so that the output shaft 31 extends in the same direction as the track 1. When the driving mechanism 3 is started, the output shaft 31 drives the first bevel gear 221 to rotate, the second gear 222 turns, and the straight gear set 223 drives the transmission pin 23 to rotate, so that the driving belt pulley in the track 1 rotates, and the vertical curtain is opened and closed.

Claims

1. A track switching device is characterized in that: including casing (21), setting drive mechanism (22) in casing (21) and be used for with track (1) complex transmission round pin (23), the input of drive mechanism (22) is power input end, the output of drive mechanism (22) then is connected with transmission round pin (23), the direction of rotation mutually perpendicular of the input of drive mechanism (22) and output.

2. The rail transit apparatus of claim 1, wherein: the transmission mechanism (22) comprises a first bevel gear (221), a second bevel gear (222) and a straight gear set (223), wherein the first bevel gear (221) is provided with a first rotating shaft (2211) serving as an input end of the transmission mechanism (22), the first bevel gear (221) and the second bevel gear (222) are meshed with each other, the straight gear set (223) is provided with a primary gear (2231) and a final gear (2232), the primary gear (2231) and the second bevel gear (222) are coaxially arranged, and the final gear (2232) is connected with a transmission pin (23) to synchronously rotate.

3. The rail transit apparatus of claim 2, wherein: the last gear (2232) is recessed from the circumferential outer side to the middle to form a second connecting groove (2234) serving as an output end of the transmission mechanism (22), and the transmission pin (23) can be clamped in the second connecting groove (2234).

4. The rail transit apparatus of claim 3, wherein: the second connecting groove (2234) is formed on teeth of a last stage gear (2232), an end plate (2235) is arranged on an axial end face of the last stage gear (2232), the second connecting groove (2234) penetrates through the end plate (2235) in the axial direction of the last stage gear (2232), a notch (2236) is formed in a portion, located on the periphery of the second connecting groove (2234), of the end plate (2235), the outer side of the notch (2236) penetrates through the outer peripheral edge of the end plate (2235), the inner side of the notch (2236) is communicated with the second connecting groove (2234), and two sides of the notch (2236) in the circumferential direction are inclined and extend from the outer side to the inner side gradually in opposite directions to form a horn shape.

5. The rail transit apparatus of claim 3, wherein: the driving pin (23) is a flat shaft, and the shape of the second connecting groove (2234) is matched with that of the driving pin (23).

6. The rail transit apparatus of claim 2, wherein: the second bevel gear (222) has a second rotation axis (2221), the first rotation axis (2211) and the second rotation axis (2221) are perpendicular to each other, and the second rotation axis (2221) is parallel to the transmission pin (23).

7. The rail transit apparatus of claim 2, wherein: an opening (211) is formed in the side face of the shell (21), and the opening (211) is formed corresponding to the final-stage gear (2232).

8. An electrically driven vertical blind to which a rail switching device according to any one of claims 1 to 7 is applied, comprising a rail (1) for hanging a manually operated vertical blind and a drive mechanism (3), the drive mechanism (3) having an output shaft (31), characterized in that: the track switching device is arranged at the end part of the track (1), an output shaft (31) of the driving mechanism (3) is connected with the input end of the transmission mechanism (22), and the driving mechanism (3) is arranged on the side surface of the track (1), so that the output shaft (31) and the track (1) extend in the same direction.

9. The motorized vertical shade of claim 8, wherein: the transmission pin (23) is arranged on the bottom surface of the end part of the track (1) and vertically extends downwards, and the end part of the track (1) can penetrate into the shell (21) so that the transmission pin (23) can be connected with the output end of the transmission mechanism (22).

10. The motorized vertical shade of claim 8, wherein: a supporting end cover (25) is arranged on the side surface of the shell (21) facing the driving mechanism (3), and an output shaft (31) of the driving mechanism (3) penetrates through the supporting end cover (25) to be connected with the input end of the transmission mechanism (22).