A vertical blind track assembly

Abstract

The utility model discloses a vertical curtain rail track assembly, including track, synchronous belt and pulley, the track includes: track body, first installation cavity for installing the synchronous belt of vertical curtain, and second installation cavity for installing the pulley of vertical curtain, the synchronous belt can rotate relative to the track, with the length direction of track is Y axle direction, the width direction of track is X axle direction, and the height direction of track is Z axle direction, and X axle, Y axle and Z axle are mutually perpendicular two by two, first installation cavity and second installation cavity are along X axle direction arrangement, first installation cavity and second installation cavity are linked together, the part of synchronous belt is in the interval arrangement along Z axle direction in track.

Description

Technical Field

[0001] This utility model relates to electric curtains, and more particularly to a vertical curtain track assembly. Background Technology

[0002] Motorized vertical blinds employ a slatted structure, allowing the slats to move left and right to raise and lower the blinds, and also to rotate to change the direction of light transmission. Vertical blinds are increasingly popular due to their ability to regulate indoor light, provide ventilation, and offer sun shading. The term "vertical blind" as used here includes common vertical blinds, as well as decorative vertical blinds with added sheer curtains, or motorized blinds that differ only in their material. Throughout this text, "vertical blind" has the same meaning.

[0003] Vertical blinds use a motor-driven mechanical transmission to control light adjustment and opening / closing. A rotating drive bar (for light adjustment) and a translating drive bar are housed within ball bearings (sliders). These ball bearings slide within a track driven by the transmission mechanism. Hooks are located at the bottom of the ball bearings, and the curtain slats are fixed to these hooks. The translating drive bar controls the opening and closing of the curtain slats; this transmission can be either ball bearings or a synchronous belt. The rotating drive bar rotates the hooks on the ball bearings, controlling the direction of the curtain slats and adjusting the amount of light blocking. This transmission typically uses polygonal drive bars (primarily hexagonal). Because two separate drives are needed to control opening / closing and light adjustment, vertical blind motors generally employ dual-motor drives or a single motor with a clutch switching function.

[0004] Existing vertical blinds, such as the dual-power structure disclosed in Chinese Patent Application No. 202122410472.2, include an opening / closing drive component and a dimming drive component. The opening / closing drive component includes an opening / closing motor assembly and an opening / closing transmission gear set connected to each other. The dimming drive component includes a dimming motor assembly and a dimming transmission gear set connected to each other. The opening / closing motor assembly is linear and parallel to the blind track, while the dimming motor assembly is linear and perpendicular to the blind track. The opening / closing motor assembly and the dimming motor assembly are arranged in an L-shape at the same end of the blind track. The output end of the opening / closing transmission gear set is connected to the drive pulley of a horizontally rotating transmission belt. The output end of the dimming transmission gear set... The output end is connected to the transmission rod for transmission; for example, Chinese Patent Application No. 202011555406.8 discloses a vertical dimming opening and closing curtain device, which includes a dimming drive assembly, a dimming drive transmission assembly connected to the dimming drive assembly, and multiple dimming assemblies arranged sequentially along the dimming drive transmission assembly. Each dimming assembly includes a dimming frame, a first dimming action element, a second dimming action element, and a curtain slat support element. The first dimming action element and the second dimming action element are rotatably connected to the dimming frame, respectively. The first dimming action element is sleeved on the dimming drive transmission assembly and can move along the length direction of the dimming drive transmission assembly. The second dimming action element is connected to the first dimming action element, and the curtain slat support element is located on the second dimming action element. It also includes an opening and closing mechanism, which includes an opening and closing action assembly, which includes a driving wheel, a driven wheel, and a transmission belt.

[0005] In the aforementioned existing technologies, the drive belt (drive belt component) is arranged and rotates in the horizontal direction, which requires a taller curtain track, and is particularly disadvantageous for concealed curtain track arrangements. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a vertical curtain track assembly that can reduce the track height, in order to address the shortcomings of the existing technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a vertical curtain track assembly, including a track, a ring-shaped synchronous belt, and a trolley, wherein the track includes:

[0008] The track itself;

[0009] The first mounting cavity is used to mount the timing belt for the vertical curtain; and

[0010] The second mounting cavity is used to install the trolley for the vertical curtain;

[0011] The synchronous belt can rotate relative to the track;

[0012] Its features are:

[0013] The length direction of the track is denoted as the Y-axis, the width direction as the X-axis, and the height direction as the Z-axis. The X-axis, Y-axis, and Z-axis are perpendicular to each other. The first mounting cavity and the second mounting cavity are arranged along the X-axis and are connected. The portion of the synchronous belt located inside the track is arranged at intervals along the Z-axis.

[0014] The two mounting cavities for installing the timing belt and the trolley are spaced apart along the width of the track. Compared with the prior art of arranging the timing belt horizontally above the trolley, the solution of this utility model can reduce the overall height of the track in the vertical direction, and is especially suitable for occasions where the track height requirement is high, such as concealed curtain tracks.

[0015] Furthermore, to facilitate defining the two mounting cavities, the track body includes a top wall and a bottom wall spaced apart along the Z-axis direction, the top wall being located above the bottom wall, and the bottom wall having an opening for the trolley to pass through; the track body also includes a first side wall and a second side wall spaced apart along the X-axis direction.

[0016] The track body is provided with a first partition extending along the Z-axis, thereby dividing the track body into a first mounting cavity and a second mounting cavity arranged along the X-axis. The first mounting cavity is located between the first side wall and the first partition, and the second mounting cavity is located between the first partition and the second side wall. A first notch is formed on the first partition to allow the first mounting cavity and the second mounting cavity to communicate.

[0017] To further define the space through which the timing belt passes, a second partition is provided in the first mounting cavity of the track body. The second partition has two partitions spaced apart along the Z-axis. Each second partition extends along the X-axis. A first sub-mounting cavity is formed between the upper second partition and the top of the track body, and a second sub-mounting cavity is formed between the lower second partition and the bottom of the track body. The portion of the timing belt located inside the track is located in the first sub-mounting cavity and the second sub-mounting cavity, respectively. A second notch is provided on the second partition.

[0018] Preferably, the track body is further provided with a guide member for guiding the connecting seat that connects the trolley and the timing belt.

[0019] Furthermore, the guide includes a first extension extending from one side of the first sidewall toward the interior of the track body toward the second sidewall, and a second extension formed at the end of the first extension away from the first sidewall. The second extension extends in the Z-axis direction, thereby making the guide as a whole horizontally T-shaped component. The T-shape defines both the position of the connecting seat along the track depth direction and the vertical position of the connecting seat, ensuring that the connecting seat can only move along the length direction of the track, thus improving operational stability.

[0020] Furthermore, a shim is provided inside the opening of the track, and the shim fits against the corresponding position of the trolley. The shim serves to reduce friction and lower noise.

[0021] Furthermore, to facilitate fixing the position of the shim, the track also includes support members formed on opposite sides of the opening along the X-axis direction. Each support member includes a first support portion extending upward from the edge of the opening and a second support portion extending from the upper end of the first support portion to the other support member. The shim covers the second support portion and abuts against the second support portion and the trolley.

[0022] Compared with the prior art, the advantages of this utility model are: the two mounting cavities for mounting the timing belt and the trolley are spaced apart along the width of the track. Compared with the prior art of arranging the timing belt horizontally above the trolley, the solution of this utility model can reduce the overall height of the track in the vertical direction, which is especially suitable for occasions with high requirements for track height, such as concealed curtain tracks. Attached Figure Description

[0023] Figure 1 A schematic diagram of the motorized vertical blind used in the track assembly of this utility model embodiment;

[0024] Figure 2 A cross-sectional view of the motorized vertical blind used in the track assembly of this utility model embodiment;

[0025] Figure 3 This is a side view of the track according to an embodiment of the present utility model;

[0026] Figure 4 A schematic diagram of the housing of the electric vertical curtain concealing section track and drive device used in the track assembly of this utility model embodiment;

[0027] Figure 5 A schematic diagram of the drive unit and part of the transmission unit of the electric vertical curtain used in the track assembly of this utility model embodiment;

[0028] Figure 6 An exploded structural diagram of a portion of the drive unit of the electric vertical curtain used in the track assembly of this utility model embodiment.

[0029] Figure 7 A cross-sectional view of a portion of the drive unit of the electric vertical curtain used in the track assembly of this utility model embodiment. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0032] See Figures 1-3 A vertical curtain track assembly for use in motorized vertical curtains includes a track 100, which comprises a track body 101. The track body 101 is generally elongated and rectangular in cross-section, and is hollow inside. The length direction of the track 100 is designated as the Y-axis, the width direction as the X-axis, and the height direction as the Z-axis. The X, Y, and Z axes are mutually perpendicular. In the normal installation state, the X-axis direction is the front-to-back direction relative to the user. For ease of description, all orientations described below refer to the normal installation state.

[0033] The track body 101 includes a top wall 1011 and a bottom wall 1012 spaced apart along the Z-axis direction. The top wall 1011 is located above the bottom wall 1012, and the bottom wall 1012 is provided with an opening 102. The track body 101 also includes a first side wall 1013 and a second side wall 1014 spaced apart along the X-axis direction. The second side wall 1014 may be located in front of the first side wall 1013.

[0034] The track body 101 has a first partition 103 extending along the Z-axis, thereby dividing the track body 101 into a first mounting cavity 104 and a second mounting cavity 105 arranged along the X-axis. The first mounting cavity 104 is located between the first side wall 1013 and the first partition 103, and the second mounting cavity 105 is located between the first partition 103 and the second side wall 1014. The first mounting cavity 104 and the second mounting cavity 105 are connected, and for this purpose, a first notch 1031 is formed on the first partition 103.

[0035] The first mounting cavity 104 of the track body 101 is further provided with a second partition 106. Two second partitions 106 are spaced apart along the Z-axis, and each second partition 106 extends along the X-axis, with its two ends extending to the first sidewall 1013 and the first partition 103, respectively. Thus, a first sub-mounting cavity 1041 is formed between the upper second partition 106 and the top of the track body 101, and a second sub-mounting cavity 1042 is formed between the lower second partition 106 and the bottom of the track body 101. A second notch 1061 is provided on the second partition 106.

[0036] The track body 101 is also provided with a guide 107. The guide 107 includes a first extension 1071 extending from the first sidewall 1013 toward the inside of the track body 101 toward the second sidewall 1014 and a second extension 1072 formed at the end of the first extension 1071 away from the first sidewall 1013. The second extension 1072 can extend in the Z-axis direction, thereby making the guide 107 as a whole horizontal T-shape.

[0037] The track assembly of this utility model also includes a timing belt 41, a dimming shaft 500, and a trolley 600. The electric vertical blind it is used in also includes a drive device comprising a drive unit 200, a transmission unit, a first housing 300, and a second housing 400. The first housing 300 may have an L-shaped cross-section, comprising a first portion 301 and a second portion 302 perpendicular to each other. The first portion 301 is disposed on the side of the track 100 and arranged parallel to the track 100, the second portion 302 is located at one end of the track 100, and the second housing 400 is disposed at the other end of the track 100. The first portion 301 and the second portion 302 are internally interconnected. The first portion 301 of the first housing 300 constitutes a drive box, and the second portion 302 and the fourth housing 400 constitute a transmission box.

[0038] See Figures 1 to 7 The drive unit 200 includes a first drive mechanism 1 and a second drive mechanism 2. Preferably, both drive mechanisms are tubular motors, and the axes of the two tubular motors are parallel to each other and parallel to the length direction of the track 100. The first drive mechanism 1 and the second drive mechanism 2 are mainly disposed within the first part 301 of the first housing 300. The first drive mechanism 1 is located between the second drive mechanism 2 and the track 100.

[0039] The transmission unit includes a driving transmission mechanism and a driven transmission mechanism. The driving transmission mechanism is mainly located in the second part 302 of the first housing 300, and includes a driving gear 39, which is driven to rotate by the first drive mechanism 1. The driven transmission mechanism includes a driven gear 42. A support base 401 is provided in the second housing 400, and the driven gear 42 is rotatably supported on the support base 401. The rotation axes of the driven gear 42 and the driving gear 39 are parallel to each other and both extend back and forth (i.e., along the X-axis direction) and are located on the same horizontal plane. The synchronous belt 41 is a closed loop that wraps around the driving gear 39 and the driven gear 42, thereby the synchronous belt 41 is installed vertically (rotated 90° relative to the prior art), with part of it located between the tops of the driving gear 39 and the driven gear 42, and part of it located between the bottoms of the driving gear 39 and the driven gear 42. Therefore, the synchronous belt 41 within the track 100 is arranged at intervals along the Z-axis direction. Specifically, the portion of the synchronous belt 41 located between the tops of the driving gear 39 and the driven gear 42 passes through the first sub-mounting cavity 1041 of the track 100, while the portion located between the bottoms of the driving gear 39 and the driven gear 42 passes through the second sub-mounting cavity 1042 of the track 100. The two portions move in opposite directions. The synchronous belt 41 meshes with the driving gear 39 and the driven gear 42 respectively, thereby enabling… Figure 4 Rotate clockwise or counterclockwise as shown.

[0040] As described above, the installation method of the synchronous belt 41 is 90° different from the prior art, but the way its driving gear 39 is driven by the first drive mechanism 1 can be the same as the prior art, simply by changing the installation direction of the driving gear 39 (which can also change the installation direction of the first drive mechanism 1). In this embodiment, the first drive mechanism 1 has a first output end with a first bevel tooth 11, and the second drive mechanism 2 has a second output end with a second bevel tooth 21. The active transmission mechanism also includes a first drive shaft 31, a second drive shaft 32, a third drive shaft 33, a fourth drive shaft 34, a third bevel tooth 35, a fourth bevel tooth 36, a fifth bevel tooth 37, and a sixth bevel tooth 38. The axial directions of the first drive shaft 31, the second drive shaft 32, and the third drive shaft 33 are perpendicular to the axial directions of each drive mechanism, while the axial direction of the fourth drive shaft 34 is parallel to the axial directions of each drive mechanism. The third bevel tooth 35 is fixedly disposed on the outer periphery of the first drive shaft 31, so that the two are coaxial and can rotate synchronously. The first bevel gear 11 on the first drive mechanism 1 meshes with the third bevel gear 35, thereby driving the first transmission shaft 31 to rotate around its own axis. The drive gear 39 is fixedly disposed on the outer periphery of the first transmission shaft 31, so that the two can rotate synchronously.

[0041] The second drive shaft 32 and the third drive shaft 33 are coaxially arranged and rotate synchronously. They can be integrally formed or separate structures connected to each other (such as keyway fit for synchronous rotation). The fourth bevel gear 36 is fixedly arranged on the outer periphery of the second drive shaft 32, so that the two can rotate synchronously; the fifth bevel gear 37 is fixedly arranged on the outer periphery of the third drive shaft 33, so that the two are coaxial and can rotate synchronously. In this embodiment, the fourth bevel gear 36 is preferably arranged at the end of the second drive shaft 32 away from the third drive shaft 33, and the fifth bevel gear 37 is preferably arranged at the end of the third drive shaft 33 away from the second drive shaft 32. The second bevel gear 21 on the second drive mechanism 2 meshes with the fourth bevel gear 36 on the second drive shaft 32, thereby realizing motion steering. The sixth bevel gear 38 is fixedly arranged on the outer periphery of the fourth drive shaft 33, so that the two are coaxial and can rotate synchronously, and the fifth bevel gear 37 and the sixth bevel gear 38 mesh. The second drive mechanism 2 drives the fourth drive shaft 34 to rotate around its own axis via the second bevel gear 21, the fourth bevel gear 36, the second drive shaft 32, the third drive shaft 33, the fifth bevel gear 37, and the sixth bevel gear 38. The second drive shaft 32 and / or the third drive shaft 33 pass through the first drive shaft 31 and are rotatable relative to the first drive shaft 31.

[0042] The arrangement of the aforementioned drive unit 200 (the first drive mechanism 1 and the second drive mechanism 2 are arranged side by side) and the active transmission mechanism (each drive shaft and bevel gear) reduces the size of the drive device located at the end of the track 100. This size refers to the length dimension along the length direction of the track 100, i.e., as shown below. Figure 3 The dimensions shown in the left-right direction reduce the space occupied.

[0043] The motorized vertical blind also includes a dimming shaft 500 and a plurality of trolleys 600, at least one of which is clamped and fixed to a timing belt 41. The blind slats (not shown) are fixed to the trolley 600, thereby causing the trolley 600 to translate during the rotation of the timing belt 41, thus opening and closing the blind slats. In this embodiment, one of the trolleys 600 is fixed to the timing belt 41. Part of the trolley 600 is placed within the second mounting cavity 105 of the track 100, while a portion extends from the opening 102 below the track 100.

[0044] The timing belt 41 and the trolley 600 are arranged side-by-side at intervals along the width direction (i.e., the X-axis direction) of the track 100. Compared with the prior art where the timing belt 41 is arranged horizontally above the trolley 600, this invention can reduce the overall height of the track 100 in the vertical direction. One of the trolleys 600 is connected to the timing belt 41 via a connecting seat 601. The connecting seat 601 is located between the trolley 600 and the timing belt 41, so that the connecting seat 601 translates as the timing belt 41 rotates. The connecting seat 601 can pass through the first notch 1031 and the second notch 1061, thereby connecting the timing belt 41 and the connecting seat 601 respectively. To prevent the timing belt 41 from detaching from each sub-mounting cavity, the width of the second notch 1061 is smaller than the width of the timing belt 41 (both are dimensions along the X-axis direction).

[0045] The guide 107 of the track 100 is inserted into the connecting seat 601, so that the connecting seat 601 can move along the guide 107. The shape of the T-shaped guide 107 limits the position of the connecting seat 601 along the X-axis direction and also limits the vertical position of the connecting seat 601 (i.e., the Z-axis direction), so that the connecting seat 601 can only move along the length direction of the track 100 (i.e., the Y-axis direction).

[0046] A gasket 108 is provided inside the opening 102 of the track 100, fitting against the corresponding position of the trolley 600, thereby reducing friction and noise. To facilitate fixing the gasket 108, the track 100 also includes support members 109 formed on opposite sides of the opening 102 along the X-axis. Each support member 109 includes a first support portion 1091 extending upward from the edge of the opening 102 and a second support portion 1092 extending from the upper end of the first support portion 1091 towards the other support member 109. The gasket 108 can cover the second support portion 1092 and abut against the second support portion 1092 and the trolley 600. The gasket 108 can be made of plastic.

[0047] The dimming shaft 500 is coaxially mounted and fixed with the fourth drive shaft 34, allowing them to rotate synchronously. The dimming shaft 500 is used to adjust the rotation angle of the curtain slats. It passes through each trolley 600 and enters the second housing 400, where it is rotatably supported. The connection methods of the synchronous belt 41, trolleys 600, and dimming shaft 500 to the curtain slats are the same as in the prior art and will not be described in detail here.

[0048] Except for the gasket 108, all components of the aforementioned track 100 can be integrally formed with other components.

Claims

1. A vertical curtain track assembly, comprising a track (100), an annular synchronous belt (41), and a trolley (600), said track (100) comprising: Track body (101); The first mounting cavity (104) is used to mount the timing belt (41) of the vertical curtain; as well as The second mounting cavity (105) is used to mount the trolley (600) of the vertical curtain; The synchronous belt (41) can rotate relative to the track (100); Its features are: The length direction of the track (100) is denoted as the Y-axis direction, the width direction of the track (100) is denoted as the X-axis direction, and the height direction of the track (100) is denoted as the Z-axis direction. The X-axis, Y-axis and Z-axis are perpendicular to each other. The first mounting cavity (104) and the second mounting cavity (105) are arranged along the X-axis direction and are connected. The portion of the synchronous belt (41) located in the track (100) is arranged at intervals along the Z-axis direction.

2. The vertical curtain track assembly according to claim 1, characterized in that: The track body (101) includes a top wall (1011) and a bottom wall (1012) spaced apart along the Z-axis direction. The top wall (1011) is located above the bottom wall (1012), and the bottom wall (1012) is provided with an opening (102) for the trolley (600) to pass through. The track body (101) also includes a first side wall (1013) and a second side wall (1014) spaced apart along the X-axis direction. The track body (101) is provided with a first partition (103) extending along the Z-axis, thereby dividing the track body (101) into a first mounting cavity (104) and a second mounting cavity (105) arranged along the X-axis. The first mounting cavity (104) is located between the first side wall (1013) and the first partition (103), and the second mounting cavity (105) is located between the first partition (103) and the second side wall (1014). A first notch (1031) is formed on the first partition (103) to connect the first mounting cavity (104) and the second mounting cavity (105).

3. The vertical curtain track assembly according to claim 2, characterized in that: The first mounting cavity (104) of the track body (101) is further provided with a second partition (106). The second partition (106) has two partitions arranged at intervals along the Z-axis direction. Each second partition (106) extends along the X-axis direction. A first sub-mounting cavity (1041) is formed between the upper second partition (106) and the top of the track body (101), and a second sub-mounting cavity (1042) is formed between the lower second partition (106) and the bottom of the track body (101). The portion of the synchronous belt (41) located in the track (100) is located in the first sub-mounting cavity (1041) and the second sub-mounting cavity (1042) respectively. A second notch (1061) is provided on the second partition (106).

4. The vertical curtain track assembly according to claim 3, characterized in that: The track body (101) is also provided with a guide (107) for guiding the connecting seat (601) that connects the trolley (600) and the timing belt (41).

5. The vertical curtain track assembly according to claim 4, characterized in that: The guide (107) includes a first extension (1071) extending from one side of the first sidewall (1013) toward the inside of the track body (101) toward the second sidewall (1014) and a second extension (1072) formed at the end of the first extension (1071) away from the first sidewall (1013), the second extension (1072) extending in the Z-axis direction, thereby making the guide (107) as a whole horizontal T-shape.

6. The vertical curtain track assembly according to claim 2, characterized in that: The track (100) is provided with a shim (108) inside the opening (102), and the shim (108) is attached to the corresponding position of the trolley (600).

7. The vertical curtain track assembly according to claim 6, characterized in that: The track (100) further includes support members (109) formed on opposite sides of the opening (102) along the X-axis direction. Each support member (109) includes a first support portion (1091) extending upward from the edge of the opening (102) and a second support portion (1092) extending from the upper end of the first support portion (1091) to the other support member (109). The gasket (108) covers the second support portion (1092) and abuts against the second support portion (1092) and the trolley (600).

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