CN211324268U - Driving device and electric curtain - Google Patents

Abstract

The utility model discloses a driving device and an electric curtain, which comprises a curtain rail, an annular conveyor belt wound in the curtain rail and a motor driving the annular conveyor belt to move; the annular conveyor belt comprises a splicing part, the splicing part comprises two free ends and a splicing piece, the splicing piece is fixedly connected with the two free ends in a butt joint mode, the splicing piece can rapidly form a ring shape by fixedly connecting the free ends of the cut annular conveyor belt in a butt joint mode, and the installation process is more convenient, labor-saving and rapid.

Description

Driving device and electric curtain

Technical Field

The utility model relates to an indoor electric window curtain especially relates to a drive arrangement among electric window curtain.

Background

The curtain is divided into a manual curtain and an electric curtain, the electric curtain comprises a curtain rail, a motor, a controller and a curtain body, the curtain body is arranged on the curtain rail through a pulley, and the motor drives the curtain body to move on the curtain rail through a belt so as to realize the opening and closing of the curtain body.

The rail is used as an important component of the electric curtain, plays a role of a sliding carrier for opening and closing the curtain in daily use and plays a very important role. The belt is used as a carrier for the pulley to run, and the pulley is guaranteed to run on the rail to achieve the purpose of opening and closing the curtain. In practical application, some users have the need of installing longer electric curtains, but the curtain track is longer and is extremely inconvenient for transportation in the middle of the curtain track, so that the common method is to divide the track into a plurality of shorter sub-tracks, and the sub-tracks are butted when in use, thereby not only facilitating the transportation of the track, but also meeting the requirements of the users.

The simple installation curtain rail with the authorization publication number of CN104814650A is characterized in that a filling piece is additionally arranged at the butt joint of two sub-rails, so that a belt is lengthened, and when the sub-rails are in butt joint, the filling piece is directly plugged between the sub-rails and fixed by a rail connecting piece to complete the installation of the whole curtain rail.

The invention provides a technical approach for meeting the requirements of curtain rails by cutting the redundant length of a belt and splicing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a curtain drive arrangement is provided, but its inside endless conveyor can splice fast after tailorring, adjusts length as required, further provides an electric window curtain who has above-mentioned drive arrangement.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the driving device is used for the electric curtain and comprises a curtain rail, an annular conveyor belt wound in the curtain rail and a motor for driving the annular conveyor belt to move; the annular conveyor belt comprises a splicing part, the splicing part comprises two free ends and a splicing piece, and the splicing piece is used for fixedly butting the two free ends together.

The utility model discloses a further optimization scheme does: the two free ends after butt joint and fixation are close to or at a distance.

The utility model discloses a further optimization scheme does: the track comprises a bending section and a straight line section, the splicing part is limited in the straight line section to move, and a gear driven by a motor and used for enabling the annular conveyor belt to move is located on the inner side of the bending section.

The utility model discloses a further optimization scheme does: the curtain opening and closing device is characterized in that a pulley assembly for hanging the curtain body is arranged on the annular conveyor belt, and the annular conveyor belt drives the pulley assembly to move so as to realize the opening and closing of the curtain body.

The utility model discloses a further optimization scheme does: an operation window is arranged on the side wall of the curtain rail, and the splicing part can enter the rail from the operation window.

The utility model discloses a further optimization scheme does: the splicing piece comprises a female buckle and a sub-buckle which are mutually clamped, the female buckle and the sub-buckle enclose a belt groove for mounting the free ends, and the two free ends extend outwards from openings at two ends of the belt groove; the belt grooves comprise tooth grooves matched with teeth of the free end, and the teeth are meshed with the tooth grooves to transversely fix the free end.

The utility model discloses a further optimization scheme does: the female buckle is provided with a longitudinal clamping groove, the sub-buckle is provided with a clamping part matched with the clamping groove, and the clamping part is inserted into the clamping groove so as to clamp the female buckle and the sub-buckle.

The utility model discloses a further optimization scheme does: the outer wall of the clamping groove is provided with a locking hole, the clamping part is provided with a corresponding lock catch, and the lock catch extends into the locking hole to lock the female buckle and the male buckle.

The utility model discloses a further optimization scheme does: the main buckle is provided with a plurality of positioning pins which extend longitudinally, the main buckle is provided with a plurality of positioning grooves which are matched with the positioning pins, and the positioning pins are inserted into the positioning grooves to position the main buckle and the sub buckle.

The utility model discloses another theme does: the electric curtain is characterized by comprising a curtain body and the driving device.

Compared with the prior art, the utility model has the advantages that endless conveyor includes a concatenation portion, and concatenation portion includes two free ends and splicers, and two free ends pass through the splicer butt joint and fix together, and this splicer can form annular fast with the fixed weight of the free end butt joint of the endless conveyor after tailorring, makes the installation more convenient and laborsaving swift to endless conveyor length can be adjusted as required.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of a motorized window treatment according to a preferred embodiment of the present invention;

fig. 2 is a schematic view of a driving device according to a preferred embodiment of the present invention;

FIG. 3 is a first schematic view of a curtain rail according to a preferred embodiment of the present invention;

FIG. 4 is a second schematic view of a curtain rail according to a preferred embodiment of the present invention;

fig. 5 is a first schematic view of a transmission case according to a preferred embodiment of the present invention;

FIG. 6 is a second schematic view of a transmission housing in accordance with a preferred embodiment of the present invention;

fig. 7 is an exploded view of a transmission case according to a preferred embodiment of the present invention;

FIG. 8 is a schematic view of one end of a curtain rail according to a preferred embodiment of the present invention;

FIG. 9 is an exploded view of one end of a curtain rail according to a preferred embodiment of the present invention;

fig. 10 is a schematic view of one end of a track body according to a preferred embodiment of the present invention;

FIG. 11 is a schematic view of one end of an endless conveyor belt according to a preferred embodiment of the present invention;

FIG. 12 is a partial schematic view of an endless conveyor belt according to a preferred embodiment of the invention;

FIG. 13 is a first schematic view of a splice according to a preferred embodiment of the present invention;

FIG. 14 is a second view of a splice according to a preferred embodiment of the present invention;

FIG. 15 is a schematic view of the installation of the splice and the endless conveyor according to a preferred embodiment of the present invention;

fig. 16 is a schematic view of a first step of installing a curtain rail according to a preferred embodiment of the present invention;

FIG. 17 is a schematic view of a second step of installing a curtain rail according to a preferred embodiment of the present invention;

FIG. 18 is a schematic view of a third step of installing a curtain rail according to a preferred embodiment of the present invention;

fig. 19 is a diagram illustrating a fourth step of installing a curtain rail according to a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the motorized window shade includes a window shade body 100 and a driving device 200. The driving device 200 includes a curtain rail 01, an endless belt 02 wound around the curtain rail, and a motor 03 for driving the endless belt 02 to move. The endless conveyor belt 02 is provided with a pulley assembly 04 for suspending the curtain body 100, and when the motor 03 operates, the endless conveyor belt 02 is driven to drive the pulley assembly 04 to move on the curtain rail 01 to realize the opening and closing of the curtain body 100.

As shown in fig. 3 to 4, the curtain rail 01 includes a rail body 01A formed by butting at least two rail units 001 that can be folded with each other, and an annular rail groove 01B for receiving an annular conveyor 02 is provided in the rail body 01A. An operation window 01C convenient for the cutting and splicing of the annular conveyor belt 02 is arranged on the side wall of the track body 01A. The endless conveyor 02 can be partially pulled out of the operating window 01C for cutting and splicing.

Further, as shown in fig. 3 to 9, the rail body 01A includes a straight rail a1 located in the middle and transmission boxes a2 located at both ends, the housing K of the straight rail a1 and the transmission boxes a2 are hollow structures communicating with each other, and the annular rail groove 01B is disposed inside the two. The annular track groove 01B comprises a straight line section B1 and a bent section B2, two ends of the track body 01A are provided with synchronous driving wheels 1, and the annular conveying belt 02 is wound on the synchronous driving wheels 1.

As shown in fig. 7, the transmission case a2 includes a case 2 and a cover 3, and the timing transmission wheel 1 is located in a cavity of the case 2 of the transmission case a 2. It should be noted that, the transmission case A2 structure that can open, first be convenient for follow-up maintenance, second when assembling the utility model provides a track, the accessible is opened transmission case A2 and is come, confirms endless conveyor 02's unnecessary length to the accuracy of follow-up tailor has been ensured.

Preferably, as shown in fig. 4, the transmission case a2 includes a main transmission case a21 and a sub transmission case a22, and the synchronous transmission wheels 1 in the corresponding transmission case a2 are a main transmission wheel and a sub transmission wheel. The main transmission case A21 is fixedly connected with the motor 03, an output shaft of the motor 03 penetrates through the main transmission case A21 and is fixedly connected with a main transmission wheel inside the main transmission case A, and the motor 03 runs to enable the main transmission wheel to rotate and drive the annular transmission belt to move, so that power of the main transmission wheel is transmitted to the auxiliary transmission wheel, and the main transmission wheel and the auxiliary transmission wheel are enabled to rotate synchronously.

As shown in fig. 5-10, the side wall of the transmission case a2 is preferably provided with an operation window 01C. Further, in the double open case, the main gear box a21 and the sub gear box a22 are each provided with one operation window 01C, and are located on both sides of the rail body away from each other.

Preferably, as shown in fig. 5 and 7, a sealing cover 4 is further disposed outside the operation window 01C for sealing the operation window 01C, so as to prevent dust and moisture from entering the rail body 01A to affect the internal fittings, and to maintain the integrity and beauty of the appearance of the whole curtain rail 01.

As shown in fig. 3, preferably, the tackle assembly 04 comprises a first tackle 04A and a second tackle 04B, wherein the first tackle 04A is fixedly connected with the inner side of the annular conveyor belt 02 on the straight section B1 of the one-side annular track groove 01B; and the second pulley 04B is fixedly connected with the opposite endless conveyor belt 02. The endless conveyor 02 is driven by the motor 03 to rotate forward or backward, so that the first pulley 04A and the second pulley 04B move relatively or reversely with the movement of the endless conveyor 02, thereby realizing the synchronous opening and closing displacement between the first pulley 04A and the second pulley 04B: in the first state, the first pulley 04A and the second pulley 04B are far away from each other and positioned at two ends of the track body 01A; in the second state, the first block 04A and the second block 04B are located near each other in the middle of the rail body 01A.

It should be understood that the curtain body 100 may include first and second curtain bodies suspended from the first and second pulleys 04A and 04B, respectively, and the simultaneous opening and closing displacement of the first and second pulleys 04A and 04B allows for opening and closing of the curtain body 100 suspended from the pulley assembly 04.

As shown in fig. 4 and 16 to 17, a plurality of track units 001 are independent from each other, at least one track groove with an open end is formed in the interior of each track unit 001, and an endless belt 02 having a total length greater than that of the endless track groove 01B is inserted into the track grooves of the track units 001, thereby flexibly connecting the plurality of track units 001. During transportation, the track units 001 are rigidly connected and separated from each other and flexibly connected with each other by the endless belt 02, so that they can be folded with each other to shorten the length, thereby facilitating transportation.

As shown in fig. 3 to 10 and 18 to 19, after the plurality of track units 001 are butted, a track body 01A is formed, the track grooves are communicated with each other, the track groove at the end of the outermost track unit 001 is bent, the track grooves of the plurality of track units 001 are grouped into the annular track groove 01B, and the annular conveyor belt 02 fitted in the annular track groove 01B is fitted into the track groove. And an excess length of the endless belt 02 may be drawn out from the operating window 01C to be cut so that the endless belt 02 matches the length of the endless track groove 01B.

The cut endless conveyor 02 is formed with two free ends which are secured in abutment to re-close the conveyor into an endless form and form a splice 02B in the abutment position. And after the butt joint is finished, the splicing part 02B is plugged in from the operation window 01C. Preferably, the butt-joint fixing mode can be glue adhesion, thread sewing, hot-press connection or splicing piece connection.

Preferably, the operating window 01C is arranged in the vicinity of the straight line segment B1 of the circular track groove 01B, so that the limitation of the butt-joint fixing mode of the cut conveyor belt can be reduced, and the condition that the splicers 02C of the circular conveyor belt 02 fixed in the butt-joint mode pass through the synchronous transmission wheel 1 to be obstructed is avoided.

Preferably, through a reasonable assembly mode and a running arrangement of the motor 03, as shown in fig. 19, the splicing part 02B is limited in the linear section B1 during the moving process of the endless conveyor 02, so that the free end of the cut endless conveyor 02 can be butted by using the splicing part 02C.

Preferably, the splice 02C is butt-fixed to the two free ends, the splice 02C can be accessed from the operating window 01C, and the butt-fixed two free ends are close to or spaced apart from each other. Therefore, the free ends of the cut annular conveyor belts are quickly butted, fixed and reformed to form an annular shape, and the installation process is more convenient, labor-saving and quick.

As shown in fig. 12-15, the splice 02C preferably includes a female snap C1 and a male snap C2 that snap together, the female snap C1 and the male snap C2 enclosing a channel 5 for receiving two free ends, the open free ends of the channel 5 extending outwardly from the openings.

Further, the endless belt 02 includes a belt body 021 and belt teeth 022 on one side, and the belt groove 5 includes a groove body 51 for accommodating the belt body 021 and tooth grooves 52 which coincide with the belt teeth 022 on the free end, and the belt teeth 022 are engaged with the tooth grooves 52 to laterally fix the free end.

Preferably, the female snap C1 and the male snap C2 are engaged along the width direction of the endless conveyor 02, the female snap C1 is provided with a longitudinal slot 6, the male snap C2 is provided with a snap portion 7 matched with the slot 6, and the snap portion 7 is inserted into the slot 6 to engage the female snap C1 and the male snap C2.

Specifically, the female buckle C1 is provided with a first slot section 5a, one side of the first slot section 5a is a first assembling opening 51A, and two free ends of the endless belt 02 are inserted into the first slot section 5a from the first assembling opening 51A and are respectively led out from openings at the two ends. Correspondingly, the sub-buckle C2 is provided with a second grooved section 5b, the second grooved section 5b being structurally matched to the first grooved section 5a, both of which together enclose the belt groove 5.

The first belt groove section 5a comprises a first groove body and a first tooth groove, a longitudinal clamping groove 6 communicated with the first groove body is formed in one side of the first belt groove section 5a, and the section of the longitudinal clamping groove 6 is rectangular and extends along the length direction of the free end. And the sub-buckle C2 is provided with a clamping part 7 which is matched with the clamping groove 6 and protrudes towards one side, and the clamping part 7 is inserted into the clamping groove 6 to clamp the female buckle C1 and the sub-buckle C2.

The outer wall of the clamping groove 6 is provided with a locking hole 6A, and the clamping part 7 is provided with a lock catch 7A. Preferably, the locking hole 6A is a plurality of square holes distributed in parallel along the length direction, and the lock catch 7A is a square boss, and the position, shape and size of the lock catch are matched with those of the locking hole 6A. When the card portion 7 is inserted into the card slot 6, the lock catch 7A extends into the lock hole 6A to lock the female clip C1 and the male clip C2, so that the female clip C1 and the male clip C2 are firmly connected to firmly connect the two free ends of the endless belt 02 in the splice 02C.

In order to further improve the positioning accuracy when the female buckle C1 and the sub buckle C2 are clamped, the lock catch 7A conveniently and smoothly extends into the lock hole 6A. The sub-buckle C2 is provided with a plurality of positioning pins 8 extending longitudinally, preferably, the positioning pins 8 are square columns distributed in parallel on one side of the second grooved section 5b far away from the clamping portion 7. The female buckle C1 is provided with a plurality of positioning grooves 9 matched with the positioning pins 8, and the positioning pins 8 are inserted into the positioning grooves 9 to position the female buckle C1 and the sub buckle C2.

In the actual installation process, as shown in fig. 16, in the first step, the user first takes out the curtain rail 01 in the folded state from the packing box and unfolds the curtain rail into a straight line; then, each track unit 001 of the unfolded curtain track 01 is mutually and tightly butted; second, as shown in FIG. 17, the tackle assembly is slid to the end gearbox side position and if it is a double open condition, the tackle assembly 04 is moved to the end point on both sides of the primary gearbox A21 and the secondary gearbox A22.

Thirdly, as shown in fig. 18, in the single-open state, the box cover 3 is opened, the excess length of the endless conveyor belt 02 to be cut is confirmed, for example, the excess length is 0.2m, the endless conveyor belt 02 is pulled, and the endless conveyor belt 02 is tightened and tightly attached to the endless track groove 01B and the synchronous transmission wheel 1; pulling out the endless belt 02 from the operation window 01C on the side wall of the rail body 01A; the endless belt 02 is cut to remove an excess portion to match the length of the endless track groove 01B in the track body 01A.

In the double-opening condition, when the cover 3 of the main transmission box A21 and the cover 4 of the operation window 01C are opened, half of the length of the redundant endless conveyor belt 02 is cut, and if 0.2m is increased, 0.1m is cut off; after the section of the endless belt 02 is spliced, the cover 3 of the auxiliary transmission case a22 and the cover 4 of the operation window 01C are opened, and the other half of the length of the excess endless belt 02 is cut off, that is, 0.1m is cut off.

Fourthly, as shown in fig. 19, the cut endless conveyor 02 forms two free ends, the two free ends are fixed in a butt joint manner by using glue, thread sewing, hot-press connection or splicing member connection, and then the spliced portion is inserted into the annular track groove 01B from the operation window 01C. When the splice 02C is used, a user first embeds the two free ends on two sides of the first slotted section 5a of the female buckle C1 of the splice 02C; the sub buckle C2 is clamped with the female buckle C1, and two free ends of the annular transmission belt are firmly butted; the pulled-out portion of the endless belt 02 including the splice 02C is jammed into the endless track groove 01B from the operation window 01C.

And fifthly, covering the box cover 3 and the sealing cover 4 of the operation window 01C again, thus finishing the installation of the curtain rail 01.

By adopting the curtain rail, when the rail units are in butt joint, after a user fixes the rail units through the fasteners, the length of the annular conveyor belt is adjusted through the operation window, and the whole curtain rail can be installed after the rail connecting piece is fixed.

It should be understood that when the length of the endless conveyor is too short, the endless conveyor may be cut through the operating window in the same manner and then be further connected to achieve the lengthening effect.

The (window) curtain track that this embodiment provided can conveniently shorten and prolong the regulation at the installation back, annular conveyer belt length to reply the condition of former assembly annular conveyer belt overlength short, reach best transmission effect, satisfy user's demand.

The above is to the utility model provides a drive arrangement and electric window curtain have introduced in detail, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the description of above embodiment is only used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The driving device is used for the electric curtain and is characterized by comprising a curtain rail, an annular conveyor belt wound in the curtain rail and a motor driving the annular conveyor belt to move; the annular conveyor belt comprises a splicing part, the splicing part comprises two free ends and a splicing piece, and the splicing piece is used for fixedly butting the two free ends together.

2. A drive arrangement according to claim 1 wherein the two free ends are held in abutment against or at a distance from each other.

3. The drive of claim 1, wherein the track comprises a curved section and a straight section, the splice is constrained to move within the straight section, and a motor-driven gear that moves the endless conveyor is located inside the curved section.

4. The driving device as claimed in claim 1, wherein the endless belt is provided with a pulley assembly for suspending the curtain body, and the endless belt drives the pulley assembly to move to open and close the curtain body.

5. The driving device as claimed in claim 2, wherein an operation window is provided on a side wall of the curtain rail, and the splice portion can enter the rail body from the operation window.

6. The driving device as claimed in claim 1, wherein the splice comprises a female snap and a female snap engaged with each other, the female snap and the female snap enclosing a slot for receiving the free ends, the two free ends extending outwardly from openings at two ends of the slot; the belt grooves comprise tooth grooves matched with teeth of the free end, and the teeth are meshed with the tooth grooves to transversely fix the free end.

7. The driving device as claimed in claim 6, wherein the female buckle is provided with a longitudinal slot, the male buckle is provided with a locking portion matching with the slot, and the locking portion is inserted into the slot to lock the female buckle and the male buckle.

8. The driving device as claimed in claim 7, wherein a locking hole is formed on an outer wall of the locking groove, a corresponding locking catch is formed on the locking portion, and the locking catch extends into the locking hole to lock the female buckle and the male buckle.

9. The driving device as claimed in claim 8, wherein the male latch has a plurality of positioning pins extending longitudinally, the female latch has a plurality of positioning slots matching with the positioning pins, and the positioning pins are inserted into the positioning slots to position the female latch and the male latch.

10. Motorized window treatment, characterized in that it comprises a window treatment body and a drive according to any one of claims 1-9.

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