CN219556900U

CN219556900U - Telescopic module and electric curtain

Info

Publication number: CN219556900U
Application number: CN202320353642.4U
Authority: CN
Inventors: 郭海东; 冯智涛
Original assignee: Foshan Lvchuang Window Decoration Co ltd
Current assignee: Foshan Lvchuang Window Decoration Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-22
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a telescopic module and an electric curtain, wherein the telescopic module comprises: the number of the guide rails is at least two, all the guide rails are assembled together to form a telescopic guide rail assembly, a first sliding surface and a second sliding surface which are parallel to each other are arranged in the telescopic guide rail assembly, and the first sliding surface and the second sliding surface are respectively arranged on different guide rails; the pulley slides in the telescopic guide rail assembly, and the pulley is provided with a sliding part, and the sliding part comprises a first pulley taking a first sliding surface as a reference surface and a second pulley taking a second sliding surface as a reference surface. The pulley is provided with the first pulley and the second pulley which take the first sliding surface and the second sliding surface as reference surfaces respectively, so that the sliding part of the pulley always slides on the sliding surface of the telescopic guide rail assembly no matter the pulley is positioned at any position of the telescopic guide rail assembly, and the pulley can smoothly slide on the telescopic guide rail assembly to ensure the normal use of the electric curtain.

Description

Telescopic module and electric curtain

Technical Field

The utility model relates to the technical field of intelligent home, in particular to a telescopic module and an electric curtain.

Background

With the continuous popularization of smart home, electric curtains are also becoming popular with consumers. The existing electric curtain can be controlled in a spaced mode through a remote controller, and can be controlled remotely through the Internet of things, so that requirements of different users are met as much as possible.

At present, an electric curtain generally comprises a motor, a synchronous belt transmission mechanism, a pulley and a guide rail, wherein the pulley can slide in the guide rail and is connected with the curtain, and the motor is in transmission connection with the pulley through the synchronous belt transmission mechanism. When the motor rotates, the pulley can slide back and forth along the guide rail under the drive of the synchronous belt transmission mechanism, so that the opening and closing of the curtain are controlled.

In order to cope with different installation environments, the guide rail of the existing electric curtain is generally set to be telescopic so as to avoid on-site cutting of the guide rail, and therefore the installation flexibility of the electric curtain is improved. However, because the guide rails are arranged in a telescopic way, when the pulley slides from one guide rail to the other guide rail, the pulley can be blocked or even dead due to different reference surfaces, and the normal use of the electric curtain is seriously influenced.

Disclosure of Invention

The utility model aims to provide a telescopic module for solving the technical problem that a pulley slides on a telescopic guide rail smoothly.

According to an embodiment of the first aspect of the utility model, a telescopic module comprises:

the number of the guide rails is two or more, all the guide rails are assembled together to form a telescopic guide rail assembly, a first sliding surface and a second sliding surface which are parallel to each other are arranged in the telescopic guide rail assembly, and the first sliding surface and the second sliding surface are respectively arranged on different guide rails;

and the pulley slides in the telescopic guide rail assembly, and is provided with a sliding part, wherein the sliding part comprises a first pulley taking the first sliding surface as a reference surface and a second pulley taking the second sliding surface as a reference surface.

The telescopic module provided by the embodiment of the utility model has at least the following beneficial effects: compared with the prior art, the pulley is respectively provided with the first pulley and the second pulley which take the first sliding surface and the second sliding surface as reference surfaces, so that the sliding part of the pulley always slides on the sliding surface of the telescopic guide rail assembly no matter the pulley is positioned at any position of the telescopic guide rail assembly, and the pulley can smoothly slide on the telescopic guide rail assembly to ensure the normal use of the electric curtain.

According to some embodiments of the utility model, the telescopic rail assembly comprises a first rail and a second rail, the first rail is in telescopic connection with the second rail, the first sliding surface is arranged on one of the first rail and the second rail, and the second sliding surface is arranged on the other of the first rail and the second rail.

According to some embodiments of the utility model, in order to facilitate defining the relative position between the first rail and the second rail, the telescopic rail assembly further comprises a locking sleeve, the locking sleeve is sleeved on the outer portion of the first rail and the outer portion of the second rail respectively, and the first rail and the second rail are fixedly connected through the locking sleeve.

According to some embodiments of the utility model, the locking sleeve is provided with a first threaded hole corresponding to the first guide rail and a second threaded hole corresponding to the second guide rail, so that the locking sleeve is fixedly connected with the first guide rail and the second guide rail respectively through screws.

According to some embodiments of the present utility model, since the double-open type electric window curtain is provided with two window curtains capable of being opened and closed simultaneously, and each window curtain needs to be connected with one pulley, for the double-open type electric window curtain, the number of pulleys is two, and two pulleys slide in the telescopic guide rail assembly.

According to some embodiments of the utility model, the first pulley and the second pulley are integrally formed in order to facilitate machining of the sliding portion.

According to some embodiments of the utility model, the end of the trolley is provided with a guide block, and the guide block is arranged to facilitate the trolley to enter from one guide rail to the other guide rail, so as to avoid interference at the junction of the trolley and the telescopic guide rail assembly.

According to a second aspect of the present utility model, an electric window curtain includes a motor, a synchronous belt transmission mechanism and the above-mentioned telescopic module, where the motor is installed on one side of the telescopic rail assembly, the synchronous belt transmission mechanism is disposed around the telescopic rail assembly, and the motor is in transmission connection with the pulley through the synchronous belt transmission mechanism.

The electric curtain provided by the embodiment of the utility model has at least the following beneficial effects: by adopting the telescopic module, the electric curtain can be smoothly opened and closed automatically, so that the electric curtain can be ensured to be used normally.

According to some embodiments of the present utility model, specifically, two ends of the telescopic rail assembly are respectively connected with a first end and a second end, the motor is connected to the first end, the synchronous belt transmission mechanism includes a driving wheel, a driven wheel and a synchronous belt, the driving wheel is arranged at the first end and is in transmission connection with the motor, the driven wheel is arranged at the second end, the driving wheel and the driven wheel are synchronously connected through the synchronous belt encircling the telescopic rail assembly, and the first end and the second end of the synchronous belt are fixedly connected to the pulley.

According to some embodiments of the utility model, the second end is integrally formed with an inner rail to simplify the connection between the second end and the inner rail, the inner rail is sleeved inside the telescopic guide rail assembly, and the inner rail is provided with a notch. The inner rail is used for adjusting the relative position between the second end head and the telescopic guide rail assembly so as to expose the notch, and the notch is used for enabling the pulley to move so far to adjust the length of the synchronous belt.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic perspective view of a motorized window treatment according to an embodiment of the present utility model;

FIG. 2 is a top view of the motorized window treatment of FIG. 1;

FIG. 3 is a cross-sectional view of the motorized window treatment of FIG. 2 taken along section line A-A;

fig. 4 is an exploded view of the motorized window treatment of fig. 1.

In the accompanying drawings: 10-telescopic guide rail assembly, 100-pulley, 200-first guide rail, 300-second guide rail, 11-cavity, 12-bottom slot, 210-first sliding surface, 310-second sliding surface, 120-sliding part, 130-curtain connecting block, 131-hanging hole, 121-first pulley, 122-second pulley, 220-separation strip, 201-synchronous belt cavity, 202-pulley cavity, 400-locking sleeve, 410-first threaded hole, 420-second threaded hole, 140-guide block, 20-motor, 30-synchronous belt transmission mechanism, 230-first end, 330-second end, 31-driving wheel, 32-driven wheel, 150-belt fixing mechanism, 132-bending structure, 331-inner rail, 332-notch, 333-elastic piece.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1, 3 and 4, a telescopic module according to an embodiment of the first aspect of the present utility model comprises a telescopic rail assembly 10 and a trolley 100, the trolley 100 sliding inside the telescopic rail assembly 10. The telescopic rail assembly 10 includes a first rail 200 and a second rail 300, the first rail 200 and the second rail 300 are both provided with a cavity 11 and a bottom groove 12 connected to the cavity 11, in this embodiment, the first rail 200 may be sleeved inside the second rail 300, and at this time, the bottom groove 12 of the first rail 200 and the bottom groove 12 of the second rail 300 are butted along a straight line direction, so that the first rail 200 and the second rail 300 may together form a telescopic assembly.

In other embodiments, the second rail 300 may also be sleeved inside the first rail 200, where the bottom groove 12 of the first rail 200 is butted with the bottom groove 12 of the second rail 300 in a straight direction, not limited to the above embodiments.

In addition, a first sliding surface 210 is disposed in the first guide rail 200, a second sliding surface 310 is disposed in the second guide rail 300, and the first sliding surface 210 and the second sliding surface 310 are respectively located at different horizontal planes. Meanwhile, the pulley 100 is provided with a sliding portion 120 that can slide along the telescopic rail assembly 10, the curtain connecting block 130 of the pulley 100 passes through the bottom groove 12 and extends out of the telescopic rail assembly 10, and the curtain connecting block 130 is provided with a hanging hole 131 for connecting with a curtain. The sliding part 120 includes a first pulley 121 and a second pulley 122, the first pulley 121 and the second pulley 122 have different diameters, and the first pulley 121 has the first sliding surface 210 as a sliding reference surface, and the second pulley 122 has the second sliding surface 310 as a sliding reference surface.

Compared with the prior art, since the pulley 100 is provided with the first pulley 121 and the second pulley 122 using the first sliding surface 210 and the second sliding surface 310 as reference surfaces, respectively, the sliding portion 120 of the pulley 100 always slides on the sliding surface of the telescopic rail assembly 10 no matter where the pulley 100 is located in the telescopic rail assembly 10, so that the pulley 100 can smoothly slide from one rail to the other rail, thereby ensuring the normal use of the electric curtain.

As shown in fig. 3, specifically, the second guide rail 300 is provided with the second sliding surface 310 at both outer sides of the bottom groove 12 thereof, and the first guide rail 200 is provided with the first sliding surface 210 at both outer sides of the bottom groove 12 thereof, and the second sliding surface 310 is located at the inner side of the first sliding surface 210, and at this time, the second sliding surface 310 is located higher than the first sliding surface 210. Correspondingly, the sliding parts 120 are disposed on both sides of the bottom groove 12, and the second pulley 122 is located at the inner side of the first pulley 121, so that the diameter of the first pulley 121 is greater than that of the second pulley 122, so that the first pulley 121 and the second pulley 122 can be respectively supported on the first sliding surface 210 and the second sliding surface 310 to slide.

Further, the first guide rail 200 is provided with a separation bar 220 in the cavity 11 thereof, so that a synchronous belt cavity 201 and a pulley cavity 202 are formed in the cavity 11, the pulley cavity 202 is located at the inner side of the synchronous belt cavity 201, the first sliding surface 210 is provided at the pulley cavity 202, and the second sliding surface 310 is located at the inner side of the pulley cavity 202.

It should be understood that the present utility model is not limited to the specific arrangement of the first sliding surface 210 and the second sliding surface 310, and the first sliding surface 210 may also be disposed on the second rail 300, and the second sliding surface 310 may be disposed on the first rail 200. In addition, the number of the guide rails may be more than two, at this time, the plurality of guide rails are sleeved in sequence to form a telescopic assembly together, and the first sliding surface 210 and the second sliding surface 310 are respectively arranged on different guide rails in a quincuncial bamboo manner.

As shown in fig. 4, in some embodiments of the present utility model, in order to define the relative position between the first rail 200 and the second rail 300, a locking sleeve 400 is disposed between the first rail 200 and the second rail 300, the first rail 200 and the second rail 300 may be respectively sleeved from two ends of the locking sleeve 400, the locking sleeve 400 is provided with a first threaded hole 410 into which a screw may be screwed at the position of the first rail 200, and the locking sleeve 400 is provided with a second threaded hole 420 into which a screw may be screwed at the position of the second rail 300. After the telescopic adjustment of the first rail 200 and the second rail 300 is completed, the locking sleeve 400 may be fixedly connected with the first rail 200 and the second rail 300 by screwing a screw into the corresponding threaded hole, so as to define the length of the telescopic rail assembly 10.

Further, the lock sleeve 400 is reserved with a gap between the first guide rail 200 and the second guide rail 300, so as to prevent the lock sleeve 400 from being blocked by dry grinding with the two guide rails, thereby being beneficial to adjusting the length of the telescopic guide rail assembly 10.

As shown in fig. 3 and 4, in some embodiments of the present utility model, in order to facilitate the manufacture of the sliding portion 120, the first pulley 121 and the second pulley 122 are integrally formed, i.e., the sliding portion 120 is a stepped pulley, and the sled 100 is provided with at least two sliding portions 120 along its length direction, so as to achieve stable sliding of the sled 100.

In some embodiments of the present utility model, the pulley 100 is provided with a guide block 140 at an end near the locking sleeve 400, and the guide block 140 is provided with an arc-shaped edge at an end far from the pulley 100, such that a front outer edge of the pulley 100 is an arc-shaped edge. For the telescopic rail assembly 10, the sliding block 100 needs to enter from one rail to the other rail during sliding, and in this process, the guiding part plays a role of guiding and orienting, so as to prevent the intersection of the sliding block 100 and the telescopic rail assembly 10 from interfering to cause blocking, thereby improving the sliding smoothness of the sliding block 100 in the telescopic rail assembly 10.

As shown in fig. 1 to 4, the electric window covering according to the second aspect of the present utility model includes the telescopic module according to the above-mentioned first aspect of the present utility model, and further includes a motor 20 and a timing belt transmission mechanism 30, wherein a first end 230 and a second end 330 are respectively connected to two ends of the telescopic rail assembly 10, the timing belt transmission mechanism 30 includes a driving wheel 31, a driven wheel 32, and a timing belt (not shown in the drawings), the driving wheel 31 is installed in the first end 230 and is driven by the motor 20, and the driven wheel 32 is installed in the second end 330. The synchronous belt is arranged in the synchronous belt cavity 201 of the telescopic guide rail assembly 10 in a surrounding mode, the driving wheel 31 is synchronously connected with the driven wheel 32 through the synchronous belt, the pulley 100 is provided with a belt fixing mechanism 150 for fixing the synchronous belt, so that the head end and the tail end of the synchronous belt can be fixedly connected with the pulley 100, and the length of the synchronous belt can be adjusted to adapt to different installation environments.

Currently, the main type of the electric window curtain is a double-open type electric window curtain, and since the double-open type electric window curtain is provided with two window curtains capable of being opened and closed simultaneously, each window curtain needs to be connected with one pulley 100, the number of the pulleys 100 is two for the double-open type electric window curtain. Because the synchronous belt needs to be disposed around the telescopic rail assembly 10, one pulley 100 is used for fixing the head end and the tail end of the synchronous belt, and the other pulley 100 is used for the synchronous belt to pass through and be fixedly connected with the synchronous belt, so that the two pulleys 100 can be synchronously moved closer to or away from each other under the driving of the motor 20.

Further, the curtain connecting blocks 130 of the two pulleys 100 are respectively provided with a bending structure 132 parallel to each other, so that the two curtain connecting blocks 130 do not interfere after being partially overlapped, so that the two curtains can be better closed, and light leakage caused by forming a gap between the two curtains is avoided.

As shown in fig. 1, 2 and 4, in some embodiments of the present utility model, in order to facilitate adjusting the length of the synchronous belt, the second end 330 is integrally formed with an inner rail 331, the inner rail 331 may be sleeved inside the second guide rail 300, and a notch 332 is formed on a side wall of the inner rail 331, so that the integrally formed arrangement can simplify the connection between the second end 330 and the inner rail 331, so as to reduce the assembly difficulty and save the production cost. When the length of the synchronous belt needs to be adjusted, the inner rail 331 is moved to expose the notch 332, the installer pulls out the synchronous belt through the notch 332 and cuts the redundant synchronous belt, after the length of the synchronous belt is adjusted, the tail end of the synchronous belt is fixedly connected with the belt fixing mechanism 150 of the pulley 100, and then the inner rail 331 is completely placed in the second guide rail 300 and is fixedly connected with the second guide rail by a screw.

Further, the inner rail 331 is provided with an elastic sheet 333, when the inner rail 331 is sleeved in the second guide rail 300, the elastic sheet 333 can provide a certain elastic force to prevent the second end 330 from being separated from the second guide rail 300 independently, and when the inner rail 331 is fixedly connected with the second guide rail 300, the elastic sheet 333 can limit the back-loosening of the two, thereby realizing long-term fixed connection of the second end 330 with the second guide rail 300.

Because the electric curtain adopts all the technical schemes of all the embodiments, the electric curtain at least has all the beneficial effects brought by the technical schemes of the embodiments, and the electric curtain is not repeated here.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. The flexible module, its characterized in that includes:

the number of the guide rails is two or more, all the guide rails are assembled together to form a telescopic guide rail assembly (10), a first sliding surface (210) and a second sliding surface (310) which are parallel to each other are arranged in the telescopic guide rail assembly (10), and the first sliding surface (210) and the second sliding surface (310) are respectively arranged on different guide rails;

and a carriage (100) which slides inside the telescopic rail assembly (10), wherein the carriage (100) is provided with a sliding part (120), and the sliding part (120) comprises a first pulley (121) taking the first sliding surface (210) as a reference surface and a second pulley (122) taking the second sliding surface (310) as a reference surface.

2. The telescoping module of claim 1, wherein: the telescopic guide rail assembly (10) comprises a first guide rail (200) and a second guide rail (300), the first guide rail (200) is in telescopic connection with the second guide rail (300), the first sliding surface (210) is arranged on any one of the first guide rail (200) and the second guide rail (300), and the second sliding surface (310) is arranged on the other one of the first guide rail (200) and the second guide rail (300).

3. The telescoping module of claim 2, wherein: the telescopic guide rail assembly (10) further comprises a locking sleeve (400), the locking sleeve (400) is sleeved on the outer portion of the first guide rail (200) and the outer portion of the second guide rail (300) respectively, and the first guide rail (200) and the second guide rail (300) are fixedly connected through the locking sleeve (400).

4. A telescoping module as in claim 3, wherein: the locking sleeve (400) is respectively provided with a first threaded hole (410) which is opposite to the first guide rail (200) and a second threaded hole (420) which is opposite to the second guide rail (300).

5. The telescoping module of claim 1, wherein: the number of the pulleys (100) is two, and the two pulleys (100) slide inside the telescopic guide rail assembly (10).

6. The telescoping module of claim 1 or 5, wherein: the first pulley (121) and the second pulley (122) are integrally formed.

7. The telescoping module of claim 1 or 5, wherein: the end of the pulley (100) is provided with a guide block (140).

8. A motorized window treatment comprising the retraction module according to any one of claims 1 to 7, further comprising: the device comprises a motor (20) and a synchronous belt transmission mechanism (30), wherein the motor (20) is arranged on one side of a telescopic guide rail assembly (10), the synchronous belt transmission mechanism (30) surrounds the telescopic guide rail assembly (10), and the motor (20) is in transmission connection with a pulley (100) through the synchronous belt transmission mechanism (30).

9. The motorized window treatment of claim 8, wherein: the telescopic guide rail assembly is characterized in that a first end (230) and a second end (330) are respectively connected to two ends of the telescopic guide rail assembly (10), the motor (20) is connected to the first end (230), the synchronous belt transmission mechanism (30) comprises a driving wheel (31), a driven wheel (32) and a synchronous belt, the driving wheel (31) is arranged on the first end (230) and is in transmission connection with the motor (20), the driven wheel (32) is arranged on the second end (330), the driving wheel (31) and the driven wheel (32) are synchronously connected through a synchronous belt encircling the telescopic guide rail assembly (10), and the first end and the last end of the synchronous belt are fixedly connected to the pulley (100).

10. The motorized window treatment of claim 9, wherein: the second end (330) is integrally formed with an inner rail (331), the inner rail (331) is sleeved inside the telescopic guide rail assembly (10), and a notch (332) is formed in the inner rail (331).