An electric curtain track

Abstract

The present invention discloses an electric curtain track, comprising: a track, a transmission device and a pulley; end caps are provided at both ends of the track; the transmission device includes: a transmission wheel for installing the end cap, a motor and a belt; the pulley is arranged on the belt and moves following the rotation of the belt; the belt includes: a working section and a tail section. In the present invention, the length of the track can be adjusted within a certain range according to requirements, without precisely measuring and customizing the track. While enabling mass production, it can meet the usage requirements of tracks of different sizes, making it more convenient to use; at the same time, the size of the belt also has a certain range of adjustability. By adding a groove on the end cap, the excess tail section of the belt is guided to extend outside the end cap, without affecting the use of the belt, realizing that under different requirements, the belt can be quickly assembled, reducing the precision requirement for the length of the belt, and having a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain tracks, and more specifically, to an electric curtain track. Background Art

[0002] In modern life, curtains are installed on windows in the living room. The curtains can play a role in shading, blocking the sun and strong light during the day, and at the same time can also block the outdoor line of sight, playing a role in protecting privacy; generally speaking, the curtains are manually pushed and pulled to open and close. With the development of smart home, electric curtains have begun to enter people's lives.

[0003] However, for the electric curtains in the prior art, due to the different installation positions, the lengths of the curtain slide rails are different and need to be customized, resulting in a long production time and high cost; moreover, the curtain structures in the prior art are inconvenient to install and have a complex structure.

[0004] Finally, due to the different lengths of the curtain slide rails, the lengths of the belts in the transmission mechanism required are also different. After the length of the curtain track is determined, the length of the belt needs to be re-cut. Once the length of the belt is cut incorrectly, the belt needs to be reconfigured, resulting in a waste of resources. Ordinary families cannot install it by themselves and must be installed by professional installers; if the excess belt is left in the curtain slide rail, then it will affect the use of the belt and ultimately affect the use of the product.

[0005] In order to overcome the above-mentioned drawbacks, the applicant proposes the following patent application. Summary of the Invention

[0006] In view of this, the present invention provides an electric curtain track.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: an electric curtain track, comprising: a track, a transmission device disposed at the end of the track, and a trolley driven by the transmission device to reciprocate along the track; the track is sequentially sleeved and composed of at least two sub-tracks, and a guiding structure for guiding the trolley to switch between the sub-tracks is disposed at the connection of the sub-tracks; end caps are disposed at both ends of the track; the transmission device includes: a transmission wheel, a motor and a belt installed on the end cap; the trolley is disposed on the belt and moves along with the rotation of the belt; the belt includes: a working section and a tail section; a groove body for the tail section to enter is disposed on the end cap; when the trolley moves to be close to both ends of the track, the tail section of the belt enters the groove body.

[0008] In a preferred technical solution, a partition for separating the working section and the tail section of the belt is disposed inside the end cap when the trolley moves to be close to the end of the track.

[0009] In the preferred technical solution, the partition forms one side wall of the tank body, and the tank body penetrates through the side wall of the end cover.

[0010] In the preferred technical solution, the end cover includes an upper cover body and a lower cover body. The lower cover body is provided with an installation position for the transmission wheel assembly and a moving groove for the installation of the working section of the belt. The upper cover body is respectively provided with pressing strips corresponding to the moving groove and the tank body. When the upper cover body and the lower cover body are combined, the pressing strips are respectively pressed above the moving groove and the tank body to prevent the belt from shifting up and down.

[0011] In the preferred technical solution, the track includes at least one first sub-track and at least one second sub-track. The second sub-track is sleeved inside the first sub-track, and a limiting member is provided between the two to position the first sub-track and the second sub-track.

[0012] In the preferred technical solution, through grooves are respectively provided at the bottoms of the first sub-track and the second sub-track, and the connecting part of the pulley extends outside the track.

[0013] In the preferred technical solution, the guiding structure is an eight-shaped guiding surface provided at the notch of the through groove of the first sub-track, and the guiding surface is located on the inner side wall of the through groove. The inner side wall of the through groove bulges upward, and a limiting groove for the stable sleeving of the second sub-track is formed between the bottom end surface and the inner side wall of the first sub-track.

[0014] In the preferred technical solution, a groove is provided on the inner top wall of the second sub-track. A baffle is formed perpendicular to the upper surface of the bottom, and the baffle prevents the pulley from shaking horizontally.

[0015] In the preferred technical solution, the pulley includes an installation part installed inside the track, a connecting part extending outside the track, and a sliding part for auxiliary movement. A clamping part for belt positioning is provided on the installation part.

[0016] In the preferred technical solution, the sliding part includes an upper semi-circular part and a lower semi-circular part. The upper part and the lower part are arranged corresponding to each other up and down, and the arc surfaces of the upper part and the lower part correspond to each other. The sliding part is arranged on the front and back of the installation part.

[0017] As can be seen from the above technical solutions, compared with the prior art, the present invention has the following beneficial effects: In the present invention, the length of the track can be adjusted within a certain range according to requirements, without the need for precise measurement of customized tracks. While enabling mass production, it can meet the usage requirements of tracks of different sizes, directly adapt to the size without cutting the track, and is more convenient to use. At the same time, the size of the belt does not need to be customized either. By adding a groove on the end cover, the excess tail section of the belt is guided to extend outside the end cover. After simple stretching and positioning and fixing, the excess belt outside the track can be cut, which does not affect the use of the belt. It realizes the ability to quickly assemble the belt under different requirements, reduces the precision requirements for the belt length, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0019] Figure 1 Structural schematic diagram of the present invention;

[0020] Figure 2 Cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 Exploded structural schematic diagram of the present invention;

[0022] Figure 4 Structural schematic diagram of the trolley in the present invention;

[0023] Figure 5 Exploded structural schematic diagram of the trolley in the present invention;

[0024] Figure 6 Exploded schematic diagram of the end cover in the present invention;

[0025] Figure 7 Exploded schematic diagram of the end cover from another angle in the present invention;

[0026] Figure 8 Structural schematic diagram of the belt connected to the end cover in the present invention;

[0027] Figures 9-10 Movement principle diagram of the belt and the trolley in the invention;

[0028] Figure 11 Structural schematic diagram of the first sub-track and the second sub-track in the present invention;

[0029] Figure 12 is Figure 11 an enlarged view of part B in

[0030] Figure 13 a schematic structural view of another corner of the present invention;

[0031] Figure 14 is Figure 13 an enlarged view of part A in

[0032] Figure 15 a schematic cross-sectional view of the pulley moving to the first sub-track;

[0033] Figure 16 a schematic cross-sectional view of the pulley moving to the second sub-track. Detailed implementation manners

[0034] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner. Therefore, they only show the components related to the present invention.

[0035] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] An electric curtain track, please refer to Figures 1-3 as shown in the figure, including: a track 100, a transmission device 200 arranged at the end of the track 100, and a pulley 300 driven by the transmission device 200 to reciprocate along the track 100.

[0038] The length between the tracks 100 can be adjusted within a certain range. The track 100 is composed of multiple sub-tracks sleeved in sequence. A limiting member 101 is arranged between adjacent sub-tracks. Then, according to the actual usage requirements, the length of the entire track 100 is adjusted according to the different sleeving depths between the sub-tracks to meet the usage requirements. After the required length is reached, it can be locked through the limiting member 101; the adjustment is simple, mass production can be achieved, and it needs to be customized independently according to the size.

[0039] End caps 130 are arranged at both ends of the track 100, and the end caps 130 can be used for the installation of accessories of the transmission device 200.

[0040] The transmission device 200 includes: a transmission wheel 210, a motor 220, and a belt 230 installed on the end cap 130; there are two transmission wheels 210, one of which is a driving wheel 211 and the other is a driven wheel 212, which are respectively installed in the end caps 130 at both ends of the track 100; the output shaft of the motor 220 is connected to the driving wheel 211, and while driving the driving wheel 211 to rotate, it meshes and drives with the belt.

[0041] Since the length of the track 100 is adjusted as needed, there is also a certain reserve in the length of the belt before leaving the factory. In the traditional method, after the length of the track 100 is determined, the length required for the belt 230 is measured. However, often due to inaccurate measurement, too much or too little is cut. If too little is cut, it can be cut again, but if too much is cut, the length of the belt 230 is not enough and needs to be reconfigured, wasting materials.

[0042] In the present invention, the beginning of the belt 230 is limited to the pulley 300. After the belt 230 bypasses the two transmission wheels 210, it returns to the pulley 300 for limitation again. The part that wraps around the belt in one week is set as the working section 231, and the extra part is the tail section 232; by adopting the method of the present invention, the requirement for the length accuracy of the belt 230 is greatly reduced, and the assembly of the belt is convenient.

[0043] Please refer to Figures 4-5 As shown, the pulley 300 includes: a mounting portion 310, a connecting portion 320, and a sliding portion 330; the mounting portion 310 is a mounting plate structure, and the connecting portion 320 is a metal arm structure. The connecting portion 320 is used to connect the curtain.

[0044] A tooth block 340 is provided on the installation part 330, and a position for assembling the tooth block 340 is provided on the installation part 330. The tooth block 340 is provided with a first tooth surface 341 and a second tooth surface 342. When the belt 230 is installed, the beginning of the belt 230 is snapped into the tooth block 340 and meshes with the first tooth surface 341. After the belt bypasses the driving wheel 211 and the driven wheel 212, the end of the belt 230 winds around the pulley 300 again. At this time, according to the required length, the other end of the belt 230 is meshed with the second tooth surface 342. Then, the length of the belt 230 winding around one week is the working section 231, and the redundant part is the tail section 232.

[0045] Please refer to Figure 9 as shown in Figure 9 At point A in the figure is the beginning of the belt 230, and the position of point B is the end of the working section 231 of the belt. Both are meshed with the tooth block 340, and the tail section 232 is parallel to the working section 231.

[0046] According to different usage requirements, the end of the working section 231 is meshed with the tooth block 340, and the redundant part of the belt extends out of the track. After simple stretching and positioning and fixing, the redundant part of the belt extending out of the track can be cut, greatly reducing the precision requirements for the belt.

[0047] A position for assembling the tooth block 340 is provided on the installation part 310. The position where the first tooth surface 341 is located is connected to the top of the tooth block 340. When the beginning of the belt 230 is installed, it can be snapped in from top to bottom; while the second tooth surface 342 cooperates with one surface of the installation part 310 to clamp and mesh the belt 230.

[0048] When working is set, the belt 230 rotates Figure 9 clockwise or counterclockwise as shown in the figure to drive the left or right movement of the pulley 300, realizing the electric opening or closing of the curtain connected to the pulley 300.

[0049] As Figure 10 shown in the figure, when the pulley 300 moves to the left end, due to the remaining tail section 232 of the belt 230, according to the transmission device of the traditional structure, due to the existence of the tail section 232, the tail section 232 will conflict with the end cover 130, affecting the use.

[0050] In the present invention, a groove 1322 is provided on the end cover 130. When the pulley 300 moves to the left end of the track 100, the tail section 232 is guided into the groove 1322, and it will not affect the normal use of the belt 230.

[0051] As Figures 6-7As shown, the end cap 130 includes: an upper cover body 131 and a lower cover body 132. The lower cover body 132 is provided with an installation position for assembling the driving wheel 210 and a moving groove 1321 for installing the working section 231 of the belt 230. The upper cover body 131 is respectively provided with pressing strips 1311 corresponding to the moving groove 1321 and the groove body 1322. When the upper cover body 131 and the lower cover body 132 are combined, the pressing strips 1311 are respectively pressed above the moving groove 1321 and the groove body 1322 to prevent the belt 230 from shifting up and down.

[0052] As Figure 8 shown, when the belt 230 rotates clockwise, the pulley 300 moves to the left end. At the same time, the tail section 232 of the belt 230 also moves closer to the end cap 130 to Figure 8 continue to rotate clockwise in the orientation. If there is no groove body 1322, then the tail section 232 of the belt 230 will touch the end cap 130. Especially when the length of the remaining tail section 232 is relatively long, the tail section 232 simply cannot be accommodated in the end cap 130. Then, in this embodiment, the setting of the groove body 1322 enables the tail section 232 to enter the groove body 1322 when continuing to rotate clockwise, guiding the tail section 232 to extend outwards.

[0053] Further, the groove body 1322 penetrates the side wall of the end cap 130, so that the tail section 232 can smoothly extend outwards without affecting the overall use.

[0054] Specifically, inside the end cap 130, there is a partition 1323 for separating the working section 231 and the tail section 232 of the belt 230 when the pulley 300 moves close to the end of the track 100. The partition 1323 constitutes one side wall of the groove body 1322.

[0055] Further, please refer to Figures 11-14 shown, the track 100 in this embodiment includes: at least one first sub-track 110 and at least one second sub-track 120. The second sub-track 120 is sleeved inside the first sub-track 110, and a limiting member 101 is provided between the two to position the first sub-track 110 and the second sub-track 120.

[0056] Specifically, in this embodiment, one first sub-track 110 and one second sub-track 120 are adopted. According to different specific usage requirements, the number of sub-tracks can be increased accordingly, but it belongs to the protection scope of this patent.

[0057] Since the second sub-orbital 120 is sleeved with the first sub-orbital 110, a height difference will be formed at the bottom between the second sub-orbital 120 and the first sub-orbital 110. When the trolley 300 switches tracks between the second sub-orbital 120 and the first sub-orbital 110, it needs to be guided by a guiding structure to make the movement of the trolley 300 smoother.

[0058] A through groove is formed at the bottom of the first sub-orbital 110 and the second sub-orbital 120, and the connecting part 320 of the trolley 300 extends out through the through groove.

[0059] At one end where the first sub-orbital 110 is connected to the second sub-orbital 120, an eight-shaped guiding surface 111 is arranged at the notch of the through groove, and the eight-shaped guiding surface 111 is located on the inner side wall of the through groove. The inner side wall of the through groove protrudes upward, and a limiting groove 112 for the stable insertion of the second sub-orbital is formed between the bottom end face and the inner side wall of the first sub-orbital. When sleeved, the bottom wall of the second sub-orbital is clamped in the limiting groove 112, and the installation is more stable.

[0060] A groove 121 is arranged on the inner top wall of the second sub-orbital 120; a baffle 122 is formed perpendicular to the upper surface of the bottom. The baffle 122 prevents the trolley from shaking horizontally, and inclined guiding surfaces 123 are arranged at the starting end of the baffle 122 and the bottom end face to guide the trolley 300 to switch tracks.

[0061] The sliding part 330 of the trolley 300 includes: a semi-circular upper part 331 and a semi-circular lower part 332. The upper part 331 and the lower part 332 are arranged corresponding to each other up and down, and the arc surfaces of the upper part 331 and the lower part 332 correspond to each other; the sliding part 330 is arranged on the front and back of the installation part 310.

[0062] Please refer to Figure 15 As shown, when the trolley 300 moves to the first sub-orbital 110, the first sub-orbital 110 is clamped between the upper part 331 and the lower part 332. At the same time, the thickness of the installation part 310 is approximately equal to the width of the through groove, which makes the trolley 300 not jump up and down or shift when moving on the first track 110. Then, the eight-shaped guiding surface 111 can play a good role in switching between sub-orbits.

[0063] Please refer to Figure 16As shown, when the pulley 300 moves to the second sub-track 120, since the height of the bottom surface of the second sub-track 120 is higher than that of the first sub-track 110, although the bottom of the second sub-track 120 is located between the upper part 331 and the lower part 332, it cannot play a good limiting role. Therefore, a clamping protrusion 311 is provided at the top of the mounting portion 310 of the pulley 300. By engaging the clamping protrusion 311 into the groove 121 on the inner top wall of the second sub-track 120, positioning in the vertical direction can be achieved. At the same time, since the bottom of the second sub-track 120 is clamped into the limiting groove 112 of the first sub-track 110, the width of the through groove of the second sub-track 120 is relatively large. Therefore, the baffle 122 is provided to clamp the upper part 331 of the pulley 300 from the front and the back, preventing deviation during movement and ensuring smooth sliding of the pulley.

[0064] In this embodiment, two pulleys 300 are provided and can be installed on the belt 230 in a forward or reverse manner, capable of achieving synchronous forward or reverse movement to open / close the curtain.

[0065] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric curtain track, comprising: a track, a transmission device disposed at an end of the track, and a trolley driven by the transmission device to reciprocate along the track; characterized in that: the track is sequentially sleeved and composed of at least two sub-tracks, and a guiding structure for guiding the trolley to switch between the sub-tracks is provided at the connection of the sub-tracks; end caps are provided at both ends of the track; the transmission device includes: a transmission wheel for installing the end cap, a motor, and a belt; the trolley is disposed on the belt and moves along with the rotation of the belt; the belt includes: a working section and a tail section; a groove for the tail section to enter is provided on the end cap; when the trolley moves to near both ends of the track, the tail section of the belt enters the groove; a partition for separating the working section and the tail section of the belt is provided inside the end cap when the trolley moves to near the end of the track; the partition forms one side wall of the groove, and the groove penetrates the side wall of the end cap; the end cap includes: an upper cover body and a lower cover body, the lower cover body is provided with an installation position for assembling the transmission wheel and a moving groove for installing the working section of the belt; the upper cover body is respectively provided with pressing strips corresponding to the moving groove and the groove, and when the upper cover body and the lower cover body are combined, the pressing strips are respectively pressed above the moving groove and the groove to prevent the belt from shifting up and down.

2. The electric curtain track according to claim 1, characterized in that: the track includes: at least one first sub-track and at least one second sub-track, the second sub-track is sleeved inside the first sub-track, and a limiting member is provided between the two to position the first sub-track and the second sub-track.

3. The electric curtain track according to claim 2, characterized in that: through grooves are provided at the bottoms of the first sub-track and the second sub-track, and the connecting portion of the trolley extends out of the track.

4. The electric curtain track according to claim 3, characterized in that: the guiding structure is an eight-shaped guiding surface provided at the notch of the through groove of the first sub-track, and the guiding surface is located on the inner side wall of the through groove; the inner side wall of the through groove bulges upward, and a limiting groove for the stable sleeving of the second sub-track is formed between the bottom end surface and the inner side wall of the first sub-track.

5. The electric curtain track according to claim 4, characterized in that: a groove is provided on the inner top wall of the second sub-track; a baffle is formed perpendicular to the upper surface of the bottom, and the baffle prevents the trolley from shaking horizontally.

6. The electric curtain track according to claim 1 or 5, characterized in that: the trolley includes: an installation portion installed inside the track, a connecting portion extending out of the track, and a sliding portion for auxiliary movement; a clamping portion for positioning the belt is provided on the installation portion.

7. The electric curtain track according to claim 6, characterized in that: the sliding portion includes: an upper semi-circular portion and a lower semi-circular portion, the upper and lower portions are arranged corresponding to each other up and down, and the arc surfaces of the upper and lower portions correspond to each other; the sliding portion is disposed on the front and back of the installation portion.

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