Transmission device, track module and motorized curtain

Abstract

The application relates to a transmission device, a track module and an electric curtain. The transmission device comprises a first transmission structure and a second transmission structure. The first transmission structure comprises a first transmission box, a first driving wheel and a second driving wheel. The first driving wheel and the second driving wheel are arranged at intervals along a first direction and are partially staggered along a second direction. The second transmission structure comprises a second transmission box, a first driven wheel and a second driven wheel. The first driven wheel corresponds to the position of the first driving wheel, the second driven wheel corresponds to the position of the second driving wheel, and the distance between the first driving wheel and the first driven wheel is equal to the distance between the second driving wheel and the second driven wheel. In this way, the same length of transmission members can be used to connect the first driving wheel and the first driven wheel and the second driving wheel and the second driven wheel, respectively. The transmission members do not need to be cut on site, the assembly process is reduced, the cost is reduced, and even if the assembly is incorrect, the transmission will not be affected, and the assembly is facilitated.

Description

Technical Field

[0001] This application relates to the field of smart home technology, and in particular to a transmission device, track module and electric curtain. Background Technology

[0002] As smart homes become increasingly popular, more and more people are choosing to use electric curtains. An electric curtain controller is an IoT smart curtain opening and closing component that can make traditional curtains smart. After being bound to an APP through a built-in wireless communication module, it can be remotely controlled and can be linked with other smart devices. By customizing scenes, it can realize a smarter living environment and improve the user's quality of life.

[0003] Currently, commercially available dual-synchronous-belt motorized blinds use two synchronous belts to drive a trolley, allowing control of individual or synchronized movement of each belt, enabling single-opening and single-control or double-opening and double-control of the blinds. However, the two synchronous belts in motorized blinds are often of different lengths, requiring on-site cutting with jigs during installation, increasing costs. Furthermore, the two synchronous belts pose a risk of installation errors, making installation inconvenient. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the two synchronous belts in current electric curtains are often of different lengths, requiring on-site cutting, which leads to high costs and easy misinstallation. A transmission device, track module, and electric curtain should be provided that can be connected using transmission components of the same length, eliminating the need for on-site cutting of transmission components using jigs, reducing assembly steps, lowering costs, and ensuring that even if incorrectly installed, the transmission will not be affected, making assembly easier.

[0005] A transmission device, comprising:

[0006] A first transmission structure includes a first transmission housing and a first drive wheel and a second drive wheel rotatably disposed in the first transmission housing. The first drive wheel and the second drive wheel are spaced apart along a first direction and partially offset along a second direction.

[0007] The second transmission structure includes a second transmission box and a first driven wheel and a second driven wheel rotatably disposed in the second transmission box. The second transmission box and the first transmission box are spaced apart along the first direction. The first driven wheel corresponds to the position of the first driving wheel, and the second driven wheel corresponds to the position of the second driving wheel. The distance between the first driving wheel and the first driven wheel and the distance between the second driving wheel and the second driven wheel are equal.

[0008] In one embodiment of this application, the first transmission structure further includes a first support component, the first support component is mounted on the first transmission box, and the first drive wheel and the second drive wheel are rotatably and spaced apart from each other on the first support component along the first direction and partially offset along the second direction.

[0009] In one embodiment of this application, the first support component further includes a first bracket and a second bracket. The first bracket is mounted on the first transmission box, the first drive wheel is rotatably mounted on the first bracket, the second bracket is disposed on the first bracket, and the second drive wheel is rotatably disposed on the second bracket and partially offset from the first drive wheel along the second direction.

[0010] In one embodiment of this application, the second bracket is fixedly connected to the first bracket;

[0011] And / or, the first bracket has a first mounting shaft on its surface near the second bracket, and the first drive wheel is rotatably mounted on the first mounting shaft;

[0012] And / or, the second bracket has a second mounting shaft on its surface opposite to the first bracket, and the second drive wheel is rotatably mounted on the second mounting shaft;

[0013] And / or, the surface of the first bracket near the second bracket is provided with a first guide portion, the first guide portion is arranged around the first drive wheel, and together with the first drive wheel, they form a first guide channel;

[0014] And / or, the second bracket has a second guide portion on its surface away from the first bracket, the second guide portion is arranged around the second drive wheel, and together with the second drive wheel, they form a second guide channel;

[0015] And / or, the first transmission structure further includes a first support bearing, which is disposed on the first bracket and rotatably mounted on the first drive wheel;

[0016] And / or, the first transmission structure further includes a second support bearing, which is disposed on the second bracket and rotatably mounted on the second drive wheel;

[0017] And / or, the first transmission structure further includes a first fastener, which passes through the first bracket and is fixedly installed in the first transmission box.

[0018] In one embodiment of this application, the first transmission box includes a first mounting base and a first cover plate, the first bracket is mounted on the first mounting base, the first drive wheel and the second drive wheel pass through the first mounting base and extend out of the first mounting base, and the first cover plate covers the first mounting base.

[0019] The first mounting base is provided with a first snap-fit ​​part, and the first cover plate is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are correspondingly set and snap-fitted together.

[0020] In one embodiment of this application, the second transmission structure further includes a second support component, which is mounted on the second transmission box. The first driven wheel and the second driven wheel are rotatably and spaced apart from each other on the second support component along the first direction and are partially offset along the second direction.

[0021] In one embodiment of this application, the second support component further includes a first support plate and a second support plate. The second support plate is installed on the second transmission box, the first support plate is disposed between the second support plate and the second transmission box, the first driven wheel is rotatably disposed between the first support plate and the second support plate, and the second driven wheel is rotatably disposed between the first support plate and the second transmission box.

[0022] In one embodiment of this application, a first connecting shaft is provided on the surface of the first support plate facing the second support plate and / or on the surface of the second support plate facing the first support plate, and the first driven wheel is rotatably mounted on the first connecting shaft;

[0023] And / or, the second transmission box has a second connecting shaft on the surface facing the first support plate and / or the first support plate has a surface away from the second support plate, and the second driven wheel is rotatably mounted on the second connecting shaft;

[0024] And / or, the first support plate and / or the second support plate are provided with a third guide portion, the third guide portion being arranged around the first driven wheel and forming a third guide channel with the first driven wheel;

[0025] And / or, the first support plate and / or the second transmission box are provided with a fourth guide portion, the fourth guide portion being arranged around the second driven wheel and forming a fourth guide channel with the second driven wheel;

[0026] And / or, the second transmission structure further includes a first connecting bearing, which is disposed on the first support plate and / or the second support plate, and the first driven wheel is rotatably mounted thereon;

[0027] And / or, the second transmission structure further includes a second connecting bearing, which is disposed on the first support plate and / or the second transmission box, and the second driven wheel is rotatably mounted thereon;

[0028] And / or, the second transmission structure further includes a second fastener, which passes through the second support plate and is fixedly installed in the second transmission box.

[0029] In one embodiment of this application, the second transmission box includes a second mounting base and a second cover plate, the first support plate is mounted on the second mounting base, and the second cover plate covers the second mounting base;

[0030] The second mounting base is provided with a third snap-fit ​​part, and the second cover plate is provided with a fourth snap-fit ​​part. The third snap-fit ​​part and the fourth snap-fit ​​part are correspondingly set and snap-fit ​​together.

[0031] In one embodiment of this application, the first driving wheel, the second driving wheel, the first driven wheel, and the second driven wheel are arranged at intervals along the first direction.

[0032] A track module includes a curtain track, a slider, a first transmission component, a second transmission component, and a transmission device as described in any of the above technical features, wherein the slider is slidably disposed on the curtain track;

[0033] In the transmission device, the first transmission structure and the second transmission structure are located at both ends of the curtain track. The first transmission member and the second transmission member are staggered in the curtain track along the second direction. The first transmission member is respectively connected to the first driving wheel of the first transmission structure and the first driven wheel of the second transmission structure. The second transmission member is respectively connected to the second driving wheel of the first transmission structure and the second driven wheel of the second transmission structure.

[0034] The first transmission member and the second transmission member are respectively connected to a sliding member to drive the corresponding sliding member to slide along the curtain track.

[0035] In one embodiment of this application, the curtain track is provided with an independent first movement channel and a second movement channel, the first movement channel and the second movement channel are spaced apart along the second direction, the first transmission member is movably located in the first movement channel, and the second transmission member is movably located in the second movement channel.

[0036] In one embodiment of this application, the track module further includes a fixing device, and one end of the first transmission box and / or the second transmission box is provided with a mounting groove, and one end of the curtain track can be inserted into the mounting groove;

[0037] The fixing device includes a fixing component, a third fastener, and a clamping component. The clamping component passes through the groove of the curtain track and can abut against the curtain track. The fixing component can abut against the surface of the first transmission box away from the curtain track and / or the surface of the second transmission box away from the curtain track. The third fastener passes through the fixing component and the clamping component respectively. The third fastener is used to adjust the distance between the fixing component and the clamping component to fix the first transmission box and / or the second transmission box to the curtain track.

[0038] In one embodiment of this application, the surface of the first transmission box facing away from the curtain track and / or the surface of the second transmission box facing away from the curtain track are provided with mounting holes corresponding to the slide groove. The mounting holes communicate with the slide groove, and the clamping member passes through the mounting holes and the slide groove and can abut against the curtain track.

[0039] And / or, the surface of the first transmission box opposite to the curtain track and / or the surface of the second transmission box opposite to the curtain track are provided with a recessed receiving groove, and the fixing component is at least partially disposed in the receiving groove;

[0040] And / or, the fixing component includes a fixing body and a connecting body, the connecting body being disposed on the fixing body and extending toward the curtain track, the fixing body being disposed opposite to the clamping member and being able to abut against the surface of the first transmission box away from the curtain track and / or the surface of the second transmission box away from the curtain track, the connecting body extending into the slide groove and located on opposite sides of the clamping member along a first direction for restricting the rotation of the clamping member, and the third fastener passing through the fixing body and the clamping member respectively.

[0041] An electric curtain includes a curtain fabric, a control module, and a track module as described in any of the above technical features. The curtain fabric is connected to a sliding member of the track module. The control module is throttle-connected to a transmission device of the track module. The control module can control the transmission device to drive the sliding member to slide along the curtain track, thereby causing the curtain fabric to slide along the curtain track.

[0042] By adopting the above technical solution, this application has at least the following technical effects:

[0043] The transmission device, track module, and electric curtain of this application, wherein the transmission device has a first transmission structure and a second transmission structure disposed at both ends of the curtain track, wherein the first driving wheel and the second driving wheel in the first transmission structure are partially offset along a second direction, and the first driven wheel and the second driven wheel in the second transmission structure extend in opposite directions, wherein the distance between the first driving wheel and the first driven wheel and the distance between the second driving wheel and the second driven wheel are equal, wherein the first driving wheel and the first driven wheel are used to connect the first transmission component, and the second driving wheel and the second driven wheel are used to connect the second transmission component.

[0044] In this way, by partially offsetting the first driving wheel and the second driving wheel, and setting the first driven wheel and the first driving wheel to correspond to each other, and setting the second driven wheel and the second driving wheel to correspond to each other, with the distance between the first driving wheel and the first driven wheel being equal to the distance between the second driving wheel and the second driven wheel, transmission components of the same length can be used to connect the first driving wheel and the first driven wheel, and the second driving wheel and the second driven wheel respectively. This eliminates the need for on-site cutting of transmission components using jigs, reduces assembly steps, and lowers costs. At the same time, the first and second transmission components of the same length can be adapted to both the first driving wheel and the first driven wheel, and the second driving wheel and the second driven wheel, so even if they are installed incorrectly, it will not affect the transmission, which is convenient for assembly. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of an embodiment of an electric curtain according to this application.

[0046] Figure 2 for Figure 1 The diagram shown is a schematic of an electric curtain without its control module.

[0047] Figure 3 for Figure 1 The diagram shows the transmission module in the electric curtain.

[0048] Figure 4 for Figure 3 The diagram shows an exploded view of the first transmission structure in the transmission device.

[0049] Figure 5 for Figure 4 The diagram shown is an exploded view of the first transmission structure from another perspective.

[0050] Figure 6 for Figure 4 The diagram shows a bottom view of the transmission device.

[0051] Figure 7 for Figure 6 The transmission device shown is a cross-sectional view along the AA direction.

[0052] Figure 8 for Figure 3An exploded view of the second transmission structure in the transmission device shown.

[0053] Figure 9 for Figure 8 The diagram shown is an exploded view of the second transmission structure from another perspective.

[0054] Figure 10 for Figure 8 The bottom view of the second transmission structure shown.

[0055] Figure 11 for Figure 10 The second transmission structure shown is a cross-sectional view along the BB direction.

[0056] Figure 12 for Figure 1 The diagram shows a cross-sectional view of the curtain track.

[0057] Figure 13 for Figure 2 The image shows a magnified view of the track module at point C.

[0058] Figure 14 for Figure 13 The diagram shows an exploded view of the track module.

[0059] Figure 15 for Figure 14 A schematic diagram of the fixing device in the track module shown.

[0060] The components include: 1. Electric curtain; 10. Track module; 100. Transmission device; 110. First transmission structure; 111. First transmission box; 1111. First mounting base; 11111. First snap-fit ​​part; 1112. First cover plate; 11121. Second snap-fit ​​part; 1113. Receiving groove; 1114. Mounting hole; 112. First drive wheel; 113. Second drive wheel; 114. First bracket; 1141. First mounting shaft; 1142. First guide part; 115. Second bracket; 1151. Second mounting shaft; 1152. Second guide part; 116. First support bearing; 117. Second support bearing; 118. First fastener; 120. Second transmission structure; 121. Second transmission box; 1211. Second... 1212 Connecting shaft; 12121 Second mounting base; 12121 Third snap-fit ​​part; 1213 Second cover plate; 12131 Fourth snap-fit ​​part; 122 First driven wheel; 123 Second driven wheel; 124 First support plate; 1241 First connecting shaft; 1242 Fourth guide part; 125 Second support plate; 1251 Third guide part; 126 First connecting bearing; 127 Second connecting bearing; 128 Second fastener; 200 Curtain track; 210 Slide groove; 220 First movement channel; 230 Second movement channel; 300 Sliding member; 400 Fixing device; 410 Fixing component; 411 Fixing body; 412 Connecting body; 420 Third fastener; 50 Control module. Detailed Implementation

[0061] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0062] With the increasing popularity of smart homes, more and more people are choosing to use motorized curtains. Currently, dual-synchronous-belt motorized curtains on the market use two synchronous belts, each driving a trolley. Each belt can be controlled to move independently or synchronously, allowing for single-opening and single-control or double-opening and double-control of the curtains. However, the two synchronous belts in motorized curtains are often of different lengths, requiring on-site cutting with jigs during installation, increasing costs. Furthermore, the two synchronous belts pose a risk of installation errors, making installation inconvenient.

[0063] For this purpose, please refer to Figures 1 to 3 This application provides a transmission device 100, which is applied to the track module 10 of an electric curtain 1. Figure 1This is a schematic diagram of an electric curtain 1 according to an embodiment of this application. Figure 2 for Figure 1 The diagram shown is of the electric curtain 1 without the control module 50. Figure 3 for Figure 1 This is a schematic diagram of the transmission module in the electric curtain 1. To better illustrate the structure of the transmission device 100, the structure of the electric curtain 1 and the track module 10 will be briefly introduced here. (See attached diagram.) Figures 1 to 3 The electric curtain 1 includes a control module 50 and a track module 10 as described in this application. The control module 50 is mounted on and connected to the track module 10 to drive the components within the track module 10. The control module 50 is the power source for the electric curtain 1. Optionally, the electric curtain 1 also includes a curtain fabric (not shown), which can be connected to the track module 10 and moves with the components within the track module 10. The control module 50 can drive the curtain fabric to move along the track module 10, thereby opening or closing the electric curtain 1.

[0064] See Figures 1 to 3 In one embodiment, the track module 10 includes a curtain track 200, sliding members 300, a first transmission member (not shown), a second transmission member (not shown), and the transmission device 100 of this application. There are two sliding members 300, slidably disposed on the curtain track 200, each sliding member 300 connected to a curtain fabric. The transmission device 100 is disposed at both ends of the curtain track 200. The first and second transmission members extend along the curtain track 200 and are connected to the transmission device 100 at both ends of the curtain track 200. The first transmission member is connected to one sliding member 300, and the second transmission member is connected to the other sliding member 300. The transmission device 100 is also connected to the control module 50.

[0065] To better illustrate the structure of the transmission device 100, a first direction, a third direction, and a second direction are introduced here, such as... Figures 1 to 3 As shown, the first direction is the length direction and extension direction of the curtain track 200, which is... Figure 1 and Figure 2 The left and right directions shown refer to the second direction, which includes the height, axial direction, vertical direction, and top-bottom direction of the transmission device 100, and is also the assembly direction of the control module 50 and the transmission device 100. The third direction, the width direction, is perpendicular to the second and first directions. Figure 1 and Figure 2 The directions shown are front and back. The first direction, the third direction, and the second direction will not be described again in the following text.

[0066] The curtain track 200 extends along a first direction. A first transmission member and a second transmission member are located in the curtain track 200. The first transmission member and the second transmission member are connected at one end to a first transmission structure 110 of the transmission device 100 (mentioned later) and at the other end to a second transmission structure 120 of the transmission device 100 (mentioned later). The first transmission structure 110 can drive at least one of the first transmission member and the second transmission member to move along the first direction. Thus, the first transmission member and the second transmission member can move along the curtain track 200. The curtain track 200 can guide and protect the first transmission member and the second transmission member, ensuring the reliability of the movement of the first transmission member and the second transmission member.

[0067] When the control module 50 controls the movement of the transmission device 100, the transmission device 100 can drive the first transmission member and / or the second transmission member to move. The first transmission member can then drive the corresponding sliding member 300 to slide along the curtain track 200, and / or the second transmission member can drive the corresponding sliding member 300 to slide along the curtain track 200. That is, the transmission device 100 can drive the two sliding members 300 to move closer or further apart through the first and second transmission members, so that the two sliding members 300 drive the two curtains to open or close synchronously, realizing the opening or closing of the electric curtain 1. The transmission device 100 can also drive the first or second transmission member to drive the corresponding sliding member 300 to move, so that the sliding member 300 drives the curtains to open or close, enabling the electric curtain 1 to achieve a double-opening mode or a single-opening mode. The specific structure of the transmission device 100 in some embodiments is described below.

[0068] See Figures 3 to 11 In one embodiment, the transmission device 100 includes a first transmission structure 110 and a second transmission structure 120. Figure 4 for Figure 3 An exploded view of the first transmission structure 110 in the transmission device 100 shown from one perspective. Figure 5 for Figure 4 The first transmission structure 110 shown is an exploded view from another perspective. Figure 6 for Figure 4 The bottom view of the transmission device 100 shown. Figure 7 for Figure 6 The transmission device 100 shown is a cross-sectional view along the AA direction. Figure 8 for Figure 3 An exploded view of the second transmission structure 120 in the transmission device 100 shown from one perspective. Figure 9 for Figure 8 An exploded view of the second transmission structure 120 shown from another perspective. Figure 10 for Figure 8 The bottom view of the second transmission structure 120 shown is shown. Figure 11 for Figure 10The second transmission structure 120 shown is a cross-sectional view along the BB direction.

[0069] The first transmission structure 110 includes a first transmission box 111 and a first driving wheel 112 and a second driving wheel 113 rotatably disposed in the first transmission box 111. The first driving wheel 112 and the second driving wheel 113 are spaced apart along a first direction and partially offset along a second direction. The second transmission structure 120 includes a second transmission box 121 and a first driven wheel 122 and a second driven wheel 123 rotatably disposed in the second transmission box 121. The second transmission box 121 and the first transmission box 111 are spaced apart along the first direction. The first driven wheel 122 corresponds to the position of the first driving wheel 112, and the second driven wheel 123 corresponds to the position of the second driving wheel 113. The distance between the first driving wheel 112 and the first driven wheel 122 is equal to the distance between the second driving wheel 113 and the second driven wheel 123.

[0070] The first transmission structure 110 and the second transmission structure 120 are located at both ends of the curtain track 200 along a first direction. In this embodiment, as shown... Figure 1 and Figure 2 As shown, the first transmission structure 110 is located at the right end of the curtain track 200, and the second transmission structure 120 is located at the left end of the curtain track 200. Of course, in other embodiments, the first transmission structure 110 may be located at the left end of the curtain track 200, and the second transmission structure 120 at the right end. Optionally, the first transmission structure 110 may be connected to the control module 50, or the second transmission structure 120 may be connected to the control module 50. This application only uses the example of the first transmission structure 110 being located at the right end of the curtain track 200, the second transmission structure 120 at the left end of the curtain track 200, and the first transmission structure 110 being connected to the control module 50 for illustration.

[0071] The first and second transmission components are movably located in the curtain track 200 along a first direction. One end of each component is connected to a first transmission structure 110, and the other end is connected to a second transmission structure 120. The first transmission structure 110 is an active transmission component, providing power for the movement of the first and second transmission components. The second transmission structure 120 is a passive transmission component, providing support for the movement of the first and second transmission components. The first transmission structure 110 can drive the first and second transmission components to move along the first direction, thereby enabling them to move along the second transmission structure 120.

[0072] Specifically, in the first transmission structure 110, a first transmission box 111 is installed at one end of the curtain track 200. A first drive wheel 112 and a second drive wheel 113 are rotatably disposed in the first transmission box 111. The first drive wheel 112 and the second drive wheel 113 are spaced apart along a first direction and partially offset along a second direction, so that the output ends of the first drive wheel 112 and the second drive wheel 113 are at different heights. After the control module 50 is installed in the first transmission structure 110, the control module 50 can drive the first drive wheel 112 and / or the second drive wheel 113 to rotate. In the second transmission structure 120, the second transmission box 121 is installed at the other end of the curtain track 200. The first driven wheel 122 and the second driven wheel 123 are rotatably disposed in the second transmission box 121. The first driven wheel 122 is positioned opposite to the first driving wheel 112, and the second driven wheel 123 is positioned opposite to the second driving wheel 113, so that the input end of the first driven wheel 122 and the input end of the second driven wheel 123 are at different heights.

[0073] Specifically, the first transmission component drives the first driving wheel 112 and the first driven wheel 122, and connects to a sliding member 300. The second transmission component drives the second driving wheel 113 and the second driven wheel 123, and connects to another sliding member 300. When the control module 50 drives the first driving wheel 112 to rotate, the first driving wheel 112 drives the first transmission component to rotate the corresponding sliding member 300 and the first driven wheel 122. When the control module 50 drives the second driving wheel 113 to rotate, the second driving wheel 113 drives the second transmission component to rotate the corresponding sliding member 300 and the second driven wheel 123.

[0074] Furthermore, the positions of the first driven wheel 122 and the first driving wheel 112, and the positions of the second driven wheel 123 and the second driving wheel 113, also ensure that the first driven wheel 122 and the second driven wheel 123 are partially offset along the height direction, thereby avoiding interference between the first and second transmission components. In other embodiments, the first driven wheel 122 and the first driving wheel 112 are at the same height, i.e., the first driven wheel 122 and the first driving wheel 112 are at the same height, and the second driven wheel 123 and the second driving wheel 113 are also at the same height, i.e., the second driven wheel 123 and the second driving wheel 113 are also at the same height, thereby making the transmission between the first and second transmission components smoother.

[0075] Meanwhile, the distance between the first driving wheel 112 and the first driven wheel 122 is equal to the distance between the second driving wheel 113 and the second driven wheel 123. It can be understood that the distance between the first driving wheel 112 and the first driven wheel 122 refers to the distance between the central axes of the first driving wheel 112 and the first driven wheel 122, and the distance between the second driving wheel 113 and the second driven wheel 123 refers to the distance between the central axes of the second driving wheel 113 and the second driven wheel 123. This will not be elaborated further below. In this way, transmission components of the same length can be used to connect the first driving wheel 112 and the first driven wheel 122, and to connect the second driving wheel 113 and the second driven wheel 123. Thus, when installing the electric curtain 1, transmission components of the same size can be designed, eliminating the need for on-site cutting of the transmission components, reducing assembly steps, lowering costs, and eliminating the need for reassembly even if the transmission components are installed incorrectly.

[0076] like Figure 8 , Figure 9 and Figure 11 As shown, in one embodiment, the input ends of the first driven wheel 122 and the second driven wheel 123 are at different heights. Thus, after the first transmission member connects the first driving wheel 112 and the first driven wheel 122, and the second transmission member connects the second driving wheel 113 and the second driven wheel 123, the first and second transmission members are offset along a second direction, avoiding interference between them and ensuring smooth movement of both transmission members.

[0077] See Figure 4 , Figure 5 and Figure 7 In one embodiment, the first transmission structure 110 further includes a first support component (not shown). The first support component is mounted in the first transmission housing 111. The first drive wheel 112 and the second drive wheel 113 are rotatably spaced apart from each other along a first direction and partially offset along a second direction. The first support component is a component that supports the first drive wheel 112 and the second drive wheel 113. The first support component is disposed in the first transmission housing 111. The first support component can realize the rotational support of the first drive wheel 112 and the second drive wheel 113, and ensure that the first drive wheel 112 and the second drive wheel 113 are spaced apart along the first direction and offset along the second direction, so that the output ends of the first drive wheel 112 and the second drive wheel 113 are offset along the height direction, avoiding interference between the first transmission component and the second transmission component. Optionally, the first support component is connected to the top wall (i.e., the first cover plate 1112) of the first transmission housing 111. Of course, the first support component can also be connected to the bottom wall or side wall of the first transmission housing 111.

[0078] See Figure 4 , Figure 5 and Figure 7 In one embodiment, the first support component further includes a first bracket 114 and a second bracket 115. The first bracket 114 is mounted on the first transmission box 111, the first drive wheel 112 is rotatably mounted on the first bracket 114, the second bracket 115 is disposed on the first bracket 114, and the second drive wheel 113 is rotatably disposed on the second bracket 115 and partially offset from the first drive wheel 112 along a second direction. After the first support component is divided into the separate first bracket 114 and second bracket 115, the first bracket 114 is used to rotatably mount the first drive wheel 112 and fix the second bracket 115, and the second bracket 115 is used to rotatably mount the second drive wheel 113. By setting the first bracket 114 and the second bracket 115, the first drive wheel 112 and the second drive wheel 113 can be partially offset along the second direction, which facilitates the connection between the first transmission component and the second transmission component and prevents interference between the first transmission component and the second transmission component.

[0079] Optionally, the first support 114 and the second support 115 may be a support frame, a support plate, or a support platform, etc. (See reference) Figure 4 , Figure 5 and Figure 7 In one embodiment, the second bracket 115 is fixedly connected to the first bracket 114. That is, the first support component is a separate structural member, comprising the first bracket 114 and the second bracket 115, which can be reliably connected via snap-fit ​​or threaded connection. For example, the first bracket 114 and the second bracket 115 are reliably connected via snap-fit. Of course, in other embodiments, the first bracket 114 and the second bracket 115 are an integral structure. That is, the first support component is an integral structural member. The first support component is provided with a boss, etc., for mounting the second drive wheel 113, so that the first drive wheel 112 and the second drive wheel 113 are offset along a second direction.

[0080] See Figure 4 , Figure 5 and Figure 7In one embodiment, the first transmission box 111 includes a first mounting base 1111 and a first cover plate 1112. A first bracket 114 is mounted on the first mounting base 1111. A first drive wheel 112 and a second drive wheel 113 pass through and extend out of the first mounting base 1111. The first cover plate 1112 covers the first mounting base 1111. The first mounting base 1111 is the bottom shell of the first transmission box 111, and the first cover plate 1112 is the top cover of the first transmission box 111. The components of the first transmission structure 110 are disposed in the first mounting base 1111 and protected by the first mounting base 1111 and the first cover plate 1112. Simultaneously, the first mounting base 1111 is also indirectly fixed to the curtain track 200, so that the first transmission box 111 is mounted on the curtain track 200. In this embodiment, the first drive wheel 112 and the second drive wheel 113 extend out of the first mounting base 1111. After the control module 50 is installed on the first transmission structure 110, the control module 50 can dock with the first drive wheel 112 and the second drive wheel 113 to drive them to rotate. Of course, in other embodiments, a through hole can also be provided at the bottom of the first mounting base 1111. The first drive wheel 112 and the second drive wheel 113 are located in the first mounting base 1111. After the control module 50 is connected to the first transmission structure 110, the output end of the control module 50 can extend into the first mounting base 1111 to dock with the first drive wheel 112 and the second drive wheel 113.

[0081] See Figure 4 and Figure 5 In one embodiment, the first mounting base 1111 is provided with a first snap-fit ​​portion 11111, and the first cover plate 1112 is provided with a second snap-fit ​​portion 11121. The first snap-fit ​​portion 11111 and the second snap-fit ​​portion 11121 are correspondingly provided and snap-fitted together. The inner wall of the first mounting base 1111 is provided with the first snap-fit ​​portion 11111, and the lower surface of the first cover plate 1112 is provided with the second snap-fit ​​portion 11121. After the first cover plate 1112 is placed on the first mounting base 1111, the first snap-fit ​​portion 11111 and the second snap-fit ​​portion 11121 snap-fit ​​together to reliably fix the first cover plate 1112 to the first mounting base 1111. Optionally, the first snap-fit ​​portion 11111 is a snap-fit ​​groove and the second snap-fit ​​portion 11121 is a snap-fit ​​hook; or, the first snap-fit ​​portion 11111 is a snap-fit ​​hook and the second snap-fit ​​portion 11121 is a snap-fit ​​groove; or, both the first snap-fit ​​portion 11111 and the second snap-fit ​​portion 11121 are snap-fit ​​hooks.

[0082] See Figure 4 , Figure 5 and Figure 7In one embodiment, the surface of the first bracket 114 near the second bracket 115 is provided with a first mounting shaft 1141, and the first drive wheel 112 is provided with a corresponding connecting groove or connecting hole. The first mounting shaft 1141 is embedded in the connecting groove or connecting hole of the first drive wheel 112 to rotatably mount the first drive wheel 112 to the first mounting shaft 1141. That is, the lower surface of the first bracket 114 is provided with the first mounting shaft 1141, and the first drive wheel 112 is rotatably supported by the first mounting shaft 1141 so that the first drive wheel 112 is rotatably mounted to the first bracket 114.

[0083] See Figure 4 , Figure 5 and Figure 7 In one embodiment, the second bracket 115 has a second mounting shaft 1151 on its surface opposite to the first bracket 114, and the second drive wheel 113 also has a corresponding connecting groove or connecting hole. The second mounting shaft 1151 is embedded in the connecting groove or connecting hole of the second drive wheel 113 to rotatably mount the second drive wheel 113 to the second mounting shaft 1151. That is, the lower surface of the second bracket 115 has the second mounting shaft 1151, which rotatably supports the second drive wheel 113 so that the second drive wheel 113 can be rotatably mounted to the second bracket 115.

[0084] See Figure 5 In one embodiment, a first guide portion 1142 is provided on the surface of the first bracket 114 near the second bracket 115. The first guide portion 1142 is arranged around the first drive wheel 112 and forms a first guide channel with the first drive wheel 112. That is, the lower surface of the first bracket 114 is provided with the first guide portion 1142, the shape of the first guide portion 1142 is adapted to the shape of the first transmission member, and it is located on the outside of the first transmission member. The space between the first drive wheel 112 and the first guide portion 1142 is the first guide channel (not shown). The first transmission member is located in the first guide channel between the first guide portion 1142 and the first drive wheel 112. The first guide portion 1142 guides and limits the movement of the first transmission member, ensuring the accuracy of the movement trajectory of the first transmission member, thereby ensuring the stability of the first transmission member's movement along the length direction. Figure 5 In this embodiment, the first guide portion 1142 includes both an arc-shaped profile and a straight profile. In this embodiment, the first guide portion 1142 is a guide plate and protrudes from the surface of the first bracket 114 facing the second bracket 115. Of course, in other embodiments, the first guide portion 1142 may also be a guide groove.

[0085] See Figure 5In one embodiment, the second support 115 has a second guide portion 1152 on its surface opposite to the first support 114. The second guide portion 1152 surrounds the second drive wheel 113 and forms a second guide channel (not shown) with the second drive wheel 113. That is, the lower surface of the second support 115 has the second guide portion 1152, the shape of which matches the shape of the second transmission member, and it is located outside the second transmission member. The space between the second drive wheel 113 and the second guide portion 1152 is the second guide channel. The second transmission member is located in the second guide channel between the second guide portion 1152 and the second drive wheel 113. The second guide portion 1152 guides and limits the movement of the second transmission member, ensuring the accuracy of the movement trajectory of the second transmission member, thereby ensuring the stability of the second transmission member's movement along its length. Figure 5 In this embodiment, the second guide portion 1152 includes both an arc-shaped profile and a straight profile. In this embodiment, the second guide portion 1152 is a guide plate and protrudes from the surface of the second bracket 115 away from the first bracket 114. Of course, in other embodiments, the second guide portion 1152 may also be a guide groove.

[0086] See Figure 4 , Figure 5 and Figure 7 In one embodiment, the first transmission structure 110 further includes a first support bearing 116, which is disposed on the first bracket 114 and rotatably mounts the first drive wheel 112. The first support bearing 116 is positioned between the first mounting shaft 1141 and the first drive wheel 112. The inner ring of the first support bearing 116 is fixed to the first mounting shaft 1141, and the outer ring is fixed to the first drive wheel 112. The first support bearing 116 rotatably supports the first drive wheel 112 on the first bracket 114 to ensure the smooth rotation of the first drive wheel 112. Specifically, the first support bearing 116 is interference-fitted with the first mounting shaft 1141 of the first bracket 114 and the connecting groove or connecting hole of the first drive wheel 112, respectively, to rotatably mount the first drive wheel 112 on the first bracket 114 and ensure the smooth rotation of the first drive wheel 112.

[0087] See Figure 4 , Figure 5 and Figure 7In one embodiment, the first transmission structure 110 further includes a second support bearing 117, which is disposed on the second bracket 115 and rotatably mounts the second drive wheel 113. The second support bearing 117 is positioned between the second mounting shaft 1151 and the second drive wheel 113. The inner ring of the second support bearing 117 is fixed to the second mounting shaft 1151, and the outer ring is fixed to the second drive wheel 113. The second support bearing 117 rotatably supports the second drive wheel 113 on the second bracket 115 to ensure the smooth rotation of the second drive wheel 113. Specifically, the second support bearing 117 is interference-fitted with the second mounting shaft 1151 of the second bracket 115 and the connecting groove or connecting hole of the second drive wheel 113, respectively, to rotatably mount the second drive wheel 113 on the second bracket 115 and ensure the smooth rotation of the second drive wheel 113.

[0088] See Figure 4 , Figure 5 and Figure 7 In one embodiment, the first transmission structure 110 further includes a first fastener 118, which passes through the first bracket 114 and is fixedly installed in the first transmission housing 111. The first fastener 118 can fix the first bracket 114 to the first mounting base 1111, so that the first bracket 114 is reliably fixed to the first transmission housing 111, preventing the position of the first bracket 114 from shifting, thereby realizing the reliable installation of the first drive wheel 112 and the second drive wheel 113 in the first transmission housing 111. Optionally, the first fastener 118 is a screw.

[0089] See Figure 8 , Figure 9 and Figure 11 In one embodiment, the second transmission structure 120 further includes a second support component (not shown). The second support component is mounted in the second transmission housing 121. The first driven wheel 122 and the second driven wheel 123 are rotatably and spaced apart from each other along a first direction and partially offset along a second direction. The second support component is a component that supports the first driven wheel 122 and the second driven wheel 123. The second support component is disposed in the second transmission housing 121. The second support component can provide rotational support for the first driven wheel 122 and the second driven wheel 123 and ensure that the first driven wheel 122 and the second driven wheel 123 are spaced apart and offset along the second direction, so that the output ends of the first driven wheel 122 and the second driven wheel 123 are offset along the height direction, avoiding interference between the first transmission component and the second transmission component. Optionally, the second support component is connected to the top wall (i.e., the second cover plate 1213) of the second transmission housing 121. Of course, the second support component can also be connected to the bottom wall or side wall of the second transmission housing 121.

[0090] In this embodiment, the first driven wheel 122 and the second driven wheel 123 are rotatably disposed on opposite sides of the second support member. For example, the first driven wheel 122 is rotatably disposed on the side of the second support member facing the top wall of the second transmission box 121, and the second driven wheel 123 is rotatably disposed on the side of the second support member facing the bottom wall or side wall of the second transmission box 121.

[0091] In other embodiments, the first driven wheel 122 and the second driven wheel 123 are rotatably disposed on the same sides of the second support member. For example, the first driven wheel 122 and the second driven wheel 123 are simultaneously rotatably disposed on the side of the second support member facing the top wall of the second transmission box 121, and the first driven wheel 122 and the second driven wheel 123 are simultaneously rotatably disposed on the side of the second support member facing the bottom wall or side wall of the second transmission box 121.

[0092] See Figure 8 , Figure 9 and Figure 11 In one embodiment, the second support component further includes a first support plate 124 and a second support plate 125. The second support plate 125 is mounted on the second transmission box 121, and the first support plate 124 is disposed between the second support plate 125 and the second transmission box 121. A first driven wheel 122 is rotatably disposed between the first support plate 124 and the second support plate 125, and a second driven wheel 123 is rotatably disposed between the first support plate 124 and the second transmission box 121. After the second support component is divided into the separate first support plate 124 and the second support plate 125, the first support plate 124 is used to rotatably mount the first driven wheel 122 and fix the second support plate 125. The first driven wheel 122 is located between the first support plate 124 and the second support plate 125, and the second support plate 125 is used to rotatably mount the second driven wheel 123. By setting the first support plate 124 and the second support plate 125, the first driven wheel 122 and the second driven wheel 123 can be partially offset along the second direction, which facilitates the connection between the first transmission component and the second transmission component.

[0093] Optionally, the first support plate 124 and the second support plate 125 may be a support frame, support plate, or support platform, etc. (See reference) Figure 8 , Figure 9 and Figure 11In one embodiment, the first support plate 124 and the second support plate 125 are fixedly connected. That is, the second support component is a separate structural member, comprising the first support plate 124 and the second support plate 125, which can be reliably connected by means of snap-fit ​​connection or threaded connection. Exemplarily, the first support plate 124 and the second support plate 125 are reliably connected by snap-fit. Of course, in other embodiments, the first support plate 124 and the second support plate 125 are an integral structure. That is, the second support component is an integral structural member. The second support component is provided with bosses, etc., for mounting the second driven wheel 123, so that the first driven wheel 122 and the second driven wheel 123 are partially offset along a second direction.

[0094] See Figure 8 , Figure 9 and Figure 11 In one embodiment, the second transmission box 121 includes a second mounting base 1212 and a second cover plate 1213. A first support plate 124 is mounted on the second mounting base 1212, and the second cover plate 1213 covers the second mounting base 1212. The second mounting base 1212 is the bottom shell of the second transmission box 121, and the second cover plate 1213 is the top cover of the second transmission box 121. The components of the second transmission structure 120 are disposed in the second mounting base 1212 and protected by the second mounting base 1212 and the second cover plate 1213. At the same time, the second mounting base 1212 is also indirectly fixed to the curtain track 200 so that the second transmission box 121 is mounted on the curtain track 200.

[0095] See Figure 8 and Figure 9 In one embodiment, the second mounting base 1212 is provided with a third snap-fit ​​portion 12121, and the second cover plate 1213 is provided with a fourth snap-fit ​​portion 12131. The third snap-fit ​​portion 12121 and the fourth snap-fit ​​portion 12131 are correspondingly provided and snap-fitted together. The inner wall of the second mounting base 1212 is provided with the third snap-fit ​​portion 12121, and the lower surface of the second cover plate 1213 is provided with the fourth snap-fit ​​portion 12131. After the second cover plate 1213 is placed on the second mounting base 1212, the third snap-fit ​​portion 12121 and the fourth snap-fit ​​portion 12131 snap-fit ​​together to reliably fix the second cover plate 1213 to the second mounting base 1212. Optionally, the third locking part 12121 is a locking groove and the fourth locking part 12131 is a locking hook; or, the third locking part 12121 is a locking hook and the fourth locking part 12131 is a locking groove; or, both the third locking part 12121 and the fourth locking part 12131 are locking hooks.

[0096] See Figure 8 , Figure 9 and Figure 11In one embodiment, a first connecting shaft 1241 is provided on the surface of the first support plate 124 facing the second support plate 125 and / or on the surface of the second support plate 125 facing the first support plate 124, and a first driven wheel 122 is rotatably mounted on the first connecting shaft 1241. That is, the first connecting shaft 1241 can be provided on the upper surface of the first support plate 124, or on the lower surface of the second support plate 125, or simultaneously on both the upper surface of the first support plate 124 and the lower surface of the second support plate 125. In this embodiment, the first connecting shaft 1241 is provided on the upper surface of the first support plate 124, and the first driven wheel 122 is provided with a corresponding connecting groove or connecting hole. By embedding the first connecting shaft 1241 into the connecting groove or connecting hole of the first driven wheel 122, the first connecting shaft 1241 rotatably supports the first driven wheel 122, so that the first driven wheel 122 is rotatably mounted between the first support plate 124 and the second support plate 125.

[0097] See Figure 8 , Figure 9 and Figure 11 In one embodiment, a second connecting shaft 1211 is provided on the surface of the second transmission box 121 facing the first support plate 124 and / or on the surface of the first support plate 124 facing away from the second support plate 125, and the second driven wheel 123 is rotatably mounted on the second connecting shaft 1211. It should be noted that the surface of the second transmission box 121 facing the first support plate 124 refers to the surface of the second transmission box 121 used for mounting the first support plate 124 and the second support plate 125. That is, the second connecting shaft 1211 can be provided on the bottom wall of the second transmission box 121, on the lower surface of the first support plate 124, or on both the bottom wall of the second transmission box 121 and the lower surface of the first support plate 124. In this embodiment, the second connecting shaft 1211 is provided on the bottom wall of the second transmission box 121, and the second driven wheel 123 is correspondingly provided with a connecting groove or a connecting hole. By embedding the second connecting shaft 1211 into the connecting groove or connecting hole of the second driven wheel 123, the second connecting shaft 1211 rotatably supports the second driven wheel 123, so that the second driven wheel 123 is rotatably installed between the first support plate 124 and the bottom wall of the second transmission box 121.

[0098] See Figure 9In one embodiment, the first support plate 124 and / or the second support plate 125 are provided with a third guide portion 1251. The third guide portion 1251 is arranged around the first driven wheel 122 and forms a third guide channel (not shown) with the first driven wheel 122. That is, the third guide portion 1251 can be provided on the upper surface of the first support plate 124, or on the lower surface of the second support plate 125, or both the upper surface of the first support plate 124 and the lower surface of the second support plate 125 can be provided with guide members, forming the third guide portion 1251 with the first driven wheel 122. In this embodiment, the third guide portion 1251 is provided on the lower surface of the second support plate 125.

[0099] The shape of the third guide portion 1251 is adapted to the shape of the first transmission member and is located on the outside of the first transmission member. The space between the first driven wheel 122 and the third guide portion 1251 is the third guide channel. The first transmission member is located in the third guide channel between the third guide portion 1251 and the first driven wheel 122. The third guide portion 1251 guides and limits the movement of the first transmission member, ensuring the accuracy of the movement trajectory of the first transmission member, thereby ensuring the stability of the first transmission member's movement along its length. Figure 9 In this embodiment, the third guide portion 1251 includes both an arc-shaped profile and a straight profile. In this embodiment, the third guide portion 1251 is a guide plate and protrudes from the surface of the first support plate 124 facing the second bracket 115. Of course, in other embodiments, the third guide portion 1251 may also be a guide groove.

[0100] See Figure 9 In one embodiment, the first support plate 124 and / or the second transmission box 121 are provided with a fourth guide portion 1242. The fourth guide portion 1242 is arranged around the second driven wheel 123 and forms a fourth guide channel (not shown) with the second driven wheel 123. That is, the fourth guide portion 1242 can be provided on the lower surface of the second support plate 125, or on the bottom wall of the second transmission box 121, or both the lower surface of the second support plate 125 and the bottom wall of the second transmission box 121 can be provided with guide members, forming the fourth guide portion 1242 with the second driven wheel 123. In this embodiment, the fourth guide portion 1242 is provided on the lower surface of the second support plate 125.

[0101] The shape of the fourth guide portion 1242 is adapted to the shape of the second transmission member and is located on the outside of the second transmission member. The space between the second driven wheel 123 and the fourth guide portion 1242 is the fourth guide channel. The second transmission member is located in the fourth guide channel between the fourth guide portion 1242 and the second driven wheel 123. The fourth guide portion 1242 guides and limits the movement of the second transmission member, ensuring the accuracy of the movement trajectory of the second transmission member, thereby ensuring the stability of the second transmission member's movement along its length. Figure 9 In this embodiment, the fourth guide portion 1242 includes both an arc-shaped profile and a straight profile. In this embodiment, the fourth guide portion 1242 is a guide plate and protrudes from the surface of the second support plate 125 facing the second support plate 125. Of course, in other embodiments, the fourth guide portion 1242 may also be a guide groove.

[0102] See Figure 8 , Figure 9 and Figure 11 In one embodiment, the second transmission structure 120 further includes a first connecting bearing 126, which is disposed on the first support plate 124 and / or the second support plate 125 and rotatably mounts the first driven wheel 122. In this embodiment, there are two first connecting bearings 126, one of which is disposed between the first support plate 124 and the first driven wheel 122, and the other is disposed between the second support plate 125 and the first driven wheel 122. The two first connecting bearings 126 can rotatably support the first driven wheel 122 between the first support plate 124 and the second support plate 125 to ensure the smooth rotation of the first driven wheel 122. Specifically, one of the first connecting bearings 126 is interference-fitted with the connecting grooves or connecting holes corresponding to the first connecting shaft 1241 and the first driven wheel 122 on the first support plate 124, and the other first connecting bearing 126 is interference-fitted with the connecting grooves or connecting holes corresponding to the first connecting shaft 1241 and the first driven wheel 122 on the second support plate 125. Alternatively, the second support plate 125 is provided with connecting grooves or connecting holes, the first driven wheel 122 is provided with a corresponding connecting shaft, and the other first connecting bearing 126 is interference-fitted with the connecting grooves or connecting holes of the second support plate 125 and the connecting shaft of the first driven wheel 122. Of course, in other embodiments, the first connecting bearing 126 may only be provided between the first connecting shaft 1241 and the first driven wheel 122, or only between the second support plate 125 and the second driven wheel 123.

[0103] See Figure 8 , Figure 9 and Figure 11In one embodiment, the second transmission structure 120 further includes a second connecting bearing 127, which is disposed on the first support plate 124 and / or the second transmission housing 121, and rotatably mounts the second driven wheel 123. In this embodiment, there are two second connecting bearings 127, one disposed between the second transmission housing 121 and the second driven wheel 123, and the other disposed between the first support plate 124 and the second driven wheel 123. The second connecting bearing 127 can rotatably support the second driven wheel 123 between the first support plate 124 and the bottom wall of the second transmission housing 121 to ensure the smooth rotation of the second driven wheel 123. Specifically, one of the second connecting bearings 127 is interference-fitted with the connecting grooves or connecting holes corresponding to the first connecting shaft 1241 and the second driven wheel 123 on the bottom wall of the second transmission box 121, and the other second connecting bearing 127 is interference-fitted with the connecting grooves or connecting holes of the first connecting shaft 1241 and the second driven wheel 123 on the first support plate 124. Alternatively, the first support plate 124 is provided with connecting grooves or connecting holes, the second driven wheel 123 is provided with a corresponding connecting shaft, and the other second connecting bearing 127 is interference-fitted with the connecting grooves or connecting holes of the first support plate 124 and the connecting shaft of the second driven wheel 123. Of course, in other embodiments, the second connecting bearing 127 may only be provided between the bottom wall of the second transmission box 121 and the second driven wheel 123, or only between the first support plate 124 and the second driven wheel 123.

[0104] See Figure 8 , Figure 9 and Figure 11 In one embodiment, the second transmission structure 120 further includes a second fastener 128, which passes through the second support plate 125 and is fixedly installed in the second transmission housing 121. The second fastener 128 can fix the first support plate 124 to the second mounting base 1212, so that the first support plate 124 is reliably fixed to the second transmission housing 121, preventing the position of the first support plate 124 from shifting, thereby realizing the reliable installation of the first driven wheel 122 and the second driven wheel 123 in the second transmission housing 121. Optionally, the second fastener 128 is a screw.

[0105] See Figure 4 , Figure 5 , Figures 7 to 9 , Figure 11In one embodiment, the first driving wheel 112, the second driving wheel 113, the first driven wheel 122, and the second driven wheel 123 are arranged sequentially at intervals along a first direction. This allows the first and second transmission members to have the same length, enabling the first driving wheel 112 to be connected to the first driven wheel 122, and the second driving wheel 113 to be connected to the second driven wheel 123, respectively, using two transmission members of the same length. Optionally, the first driving wheel 112, the second driving wheel 113, the first driven wheel 122, and the second driven wheel 123 may be aligned along the first direction. Of course, in other embodiments, the first driving wheel 112, the second driving wheel 113, the first driven wheel 122, and the second driven wheel 123 may not be aligned.

[0106] See Figure 4 , Figure 5 , Figures 7 to 9 , Figure 11 In one embodiment, both the first driving pulley 112 and the first driven pulley 122 include pulleys, and the first transmission component includes a synchronous belt, which is sleeved on the first driving pulley 112 and the first driven pulley 122. That is, the first driving pulley 112, the first driven pulley 122, and the first transmission component form a belt drive structure. The synchronous belt is sleeved on the first driving pulley 112 and the first driven pulley 122, which are pulleys. The control module 50 drives the first driving pulley 112 to rotate, and then the first driving pulley 112 drives the first driven pulley 122 to rotate through the first transmission component. Optionally, the outer walls of the first driving pulley 112 and the second driving pulley 113 are provided with protruding teeth, or the first driving pulley 112 and the second driving pulley 113 are gear structures to prevent the synchronous belt from slipping.

[0107] In other embodiments, the first driving wheel 112 and the first driven wheel 122 include winding reels, and the first transmission member includes a transmission rope, which is sleeved on the first driving wheel 112 and the first driven wheel 122. That is, the first driving wheel 112, the first driven wheel 122, and the first transmission member are a rope transmission structure. Of course, the first driving wheel 112, the first driven wheel 122, and the first transmission member can also be a chain transmission structure, etc. It is worth noting that the structure of the second driving wheel 113 is the same as the structure of the first driving wheel 112, and the structure of the second driven wheel 123 is the same as the structure of the first driven wheel 122, which will not be described again here.

[0108] The transmission device 100 of this application arranges the first driving wheel 112 and the second driving wheel 113 in a partially staggered manner, with the first driven wheel 122 corresponding to the first driving wheel 112 and the second driven wheel 123 corresponding to the second driving wheel 113. The distance between the first driving wheel 112 and the first driven wheel 122 is equal to the distance between the second driving wheel 113 and the second driven wheel 123. In this way, two transmission components of the same length can be used to connect the first driving wheel 112 and the first driven wheel 122, and the second driving wheel 113 and the second driven wheel 123 respectively. There is no need to use a jig to cut the transmission components on site, reducing assembly steps and lowering costs. At the same time, the first and second transmission components of the same length can be adapted to both the first driving wheel 112 and the first driven wheel 122, and the second driving wheel 113 and the second driven wheel 123. Even if they are installed incorrectly, it will not affect the transmission, which is convenient for assembly.

[0109] See Figures 1 to 3 This application also provides a track module 10, including a curtain track 200, a sliding member 300, a first transmission member, a second transmission member, and a transmission device 100 as described in any of the above embodiments. The sliding member 300 is slidably disposed on the curtain track 200. In the transmission device 100, a first transmission structure 110 and a second transmission structure 120 are disposed at both ends of the curtain track 200. The first transmission member and the second transmission member are staggered along a second direction in the curtain track 200 and are respectively connected to the first transmission structure 110 and the second transmission structure 120. The first transmission member and the second transmission member are respectively connected to a sliding member 300 to drive the corresponding sliding member 300 to slide along the curtain track 200.

[0110] Thus, the first driving wheel 112 and the first driven wheel 122 can support the first transmission component, and the second driving wheel 113 and the second driven wheel 123 can support the second transmission component. The first driving wheel 112 can drive the first transmission component to move the corresponding sliding component 300 along the curtain track 200, and the second driving wheel 113 can drive the second transmission component to move the corresponding sliding component 300 along the curtain track 200, thereby opening or closing the electric curtain 1. After adopting the transmission device 100 of the above embodiment, the track module 10 of this application can use the first transmission component and the second transmission component of the same length to connect the first transmission structure 110 and the second transmission structure 120, eliminating the need for on-site cutting of the transmission components using jigs, reducing assembly steps, and lowering costs. At the same time, even if the first transmission component and the second transmission component are installed incorrectly, it will not affect the transmission, making assembly convenient.

[0111] See Figure 4 , Figure 5 , Figures 7 to 9 , Figure 11In one embodiment, the first transmission member is connected to the first driving wheel 112 of the first transmission structure 110 and the first driven wheel 122 of the second transmission structure 120, respectively. The second transmission member is connected to the second driving wheel 113 of the first transmission structure 110 and the second driven wheel 123 of the second transmission structure 120, respectively. The second transmission member and the first transmission member are staggered along a second direction. In this way, there is no interference between the first transmission member and the second transmission member, which ensures the smoothness of the movement of the first transmission member and the second transmission member.

[0112] See Figure 12 In one embodiment, the curtain track 200 is provided with an independent first movement channel 220 and a second movement channel 230, which are spaced apart along a second direction. A first transmission member is movably located in the first movement channel 220, and a second transmission member is movably located in the second movement channel 230. Figure 12 for Figure 1 The diagram shows a cross-sectional view of the curtain track 200. A first motion channel 220 and a second motion channel 230 extend along their length and connect to a first transmission box 111 and a second transmission box 121, respectively. The first motion channel 220 and the second motion channel 230 are independent of each other along a second direction. A first transmission member can move in the first motion channel 220 without interfering with a second transmission member in the second motion channel 230, and a second transmission member can move in the second motion channel 230 without interfering with a first transmission member in the first motion channel 220, thus ensuring the reliability of the movement of the first and second transmission members.

[0113] See Figure 2 , Figures 13 to 15 In one embodiment, the track module 10 further includes a fixing device 400. One end of the first transmission box 111 and / or the second transmission box 121 is provided with a mounting groove. One end of the curtain track 200 can be inserted into the mounting groove. The fixing device 400 passes through the first transmission box 111 and / or the second transmission box 121 and is installed on the curtain track 200. Figure 13 for Figure 2 The image shows a partial enlarged view of the track module 10 at point C. Figure 14 for Figure 13 The exploded view of the track module 10 shown is shown below. Figure 15 for Figure 14 A schematic diagram of the fixing device 400 in the track module 10 shown.

[0114] The fixing device 400 is a component that fixes the first transmission structure 110 and the second transmission structure 120 to the curtain track 200. The fixing device 400 can pass through and connect to the first transmission structure 110, and can also be installed on the curtain track 200 to fix the first transmission structure 110 to the curtain track 200. Similarly, the fixing device 400 can pass through and connect to the second transmission structure 120, and can also be installed on the curtain track 200 to fix the second transmission structure 120 to the curtain track 200. It is worth noting that the structures of the fixing devices 400 corresponding to the first transmission structure 110 and the second transmission structure 120 are identical; this application only uses the fixing device 400 and the first transmission structure 110 as examples for explanation.

[0115] One end of the curtain track 200 is inserted into the first transmission box 111, with the top wall of the first transmission box 111 abutting against the top wall of the curtain track 200. At this time, the first transmission box 111 rests on the curtain track 200 under the action of gravity. Simultaneously, the fixing device 400 abuts against the lower surface of the first transmission box 111 and is locked in the curtain track 200. In this way, the cooperation between the curtain track 200 and the top wall of the first transmission box 111 enables the first transmission box 111 to be limited in the second direction. The fixing device 400 can lock and fix the first transmission box 111 to the curtain track 200, so that the first transmission structure 110 is reliably fixed to the curtain track 200, preventing the position of the first transmission structure 110 from shifting.

[0116] See Figure 2 , Figures 13 to 15 In one embodiment, the fixing device 400 includes a fixing component 410, a third fastener 420, and a clamping member (not shown). The clamping member passes through the groove 210 of the curtain track 200 and abuts against the curtain track 200. The fixing component 410 abuts against the surface of the first transmission box 111 facing away from the curtain track 200 and / or the surface of the second transmission box 121 facing away from the curtain track 200. The third fastener 420 passes through the fixing component 410 and the clamping member respectively, and is used to adjust the distance between the fixing component 410 and the clamping member to fix the first transmission box 111 and / or the second transmission box 121 to the curtain track 200. Optionally, in the third direction, the width of the clamping member is greater than the width of the groove 210. In this way, the clamping member can abut against the trolley guide rail of the curtain track 200. Optionally, the clamping member is a clip. Optionally, the third fastener 420 is a screw. The third fastener 420 is connected to the clamping component via a screw connection.

[0117] The fixing component 410 abuts against the lower surface of the first transmission box 111. The clamping component is a component that is fixed to the curtain track 200. The clamping component can pass through the slide groove 210 of the curtain track 200 in a third direction and abut against the trolley guide rail of the curtain track 200. The third fastener 420 passes through the fixing component 410 and the clamping component respectively, so that the fixing component 410 is fixed to the curtain track 200 by the clamping component. At the same time, the fixing component 410 abuts against the lower surface of the first transmission box 111. Then, the distance between the fixing component 410 and the clamping component is adjusted by the third fastener 420 to fix the first transmission box 111 to the curtain track 200.

[0118] See Figure 2 , Figures 13 to 15 In one embodiment, the surface of the first transmission box 111 facing away from the curtain track 200 and / or the surface of the second transmission box 121 facing away from the curtain track 200 are provided with mounting holes 1114 corresponding to the slide groove 210. The mounting holes 1114 communicate with the slide groove 210. The clamping member passes through the mounting holes 1114 and the slide groove 210 and can abut against the curtain track 200. The mounting holes 1114 and the slide groove 210 facilitate the installation of the clamping member onto the curtain track 200.

[0119] When assembling the first transmission structure 110, the curtain track 200, and the fixing device 400, the first transmission box 111 is first installed at one end of the curtain track 200. Then, the clamping member is transferred into the curtain track 200 through the mounting hole 1114 and the slide groove 210. Subsequently, the clamping member is moved to the installation position of the fixing component 410, and the third fastener 420 is installed onto the clamping member through the fixing component 410. At this time, the clamping member can abut against the curtain track 200, so that the fixing device 400 fixes the first transmission structure 110 to the curtain track 200.

[0120] See Figure 2 , Figures 13 to 15 In one embodiment, the surface of the first transmission box 111 facing away from the curtain track 200 and / or the surface of the second transmission box 121 facing away from the curtain track 200 are provided with recessed receiving grooves 1113, and the fixing member 410 is at least partially disposed in the receiving grooves 1113. The receiving grooves 1113 can limit the fixing member 410 in a first direction and a third direction to ensure that the clamping member is accurately engaged in the curtain track 200, so as to reliably fix the first transmission box 111 to the curtain track 200.

[0121] See Figure 2 , Figures 13 to 15In one embodiment, the fixing component 410 includes a fixing body 411 and a connecting body 412. The connecting body 412 is disposed on the fixing body 411 and extends toward the curtain track 200. The fixing body 411 is disposed opposite to the clamping member and can abut against the surface of the first transmission box 111 opposite to the curtain track 200 and / or the surface of the second transmission box 121 opposite to the curtain track 200. The connecting body 412 extends into the slide groove 210 and is located on opposite sides of the clamping member along the first direction to restrict the rotation of the clamping member. The third fastener 420 passes through the fixing body 411 and the clamping member respectively. Optionally, the fixing body 411 and the connecting body 412 are an integral structure or are separately disposed.

[0122] The connecting bodies 412 are located on opposite sides of the fixing body 411 along the first direction and extend toward the curtain track 200. After the third fastener 420 passes through the fixing body 411 and abuts against the clamping member, the two connecting bodies 412 are located on opposite sides of the clamping member along the first direction. When the third fastener 420 is connected to the clamping member by a screw, the two connecting bodies 412 can limit the rotation of the clamping member, so that the third fastener 420 can be tightened to the clamping member, and also prevent the position of the clamping member relative to the curtain track 200 from shifting, ensuring the reliability of the connection between the fixing device 400 and the curtain track 200.

[0123] When the fixing device 400 is used to fix the first transmission structure 110 to the curtain track 200, one end of the curtain track 200 is first inserted into the first transmission box 111, and the outer wall of the curtain track 200 abuts against the inner wall of the first transmission box 111 to limit the first transmission box 111. Then, the third fastener 420 is connected to the clamping member through the fixing member 410, and the clamping member is inserted into the curtain track 200 through the mounting hole 1114 and the slide groove 210. Then, the fixing device 400 is moved to the position corresponding to the receiving groove 1113. Then, the third fastener 420 is tightened, and the distance between the fixing body 411 and the clamping member decreases until the fixing body 411 is located in the receiving groove 1113 and abuts against the bottom of the first transmission box 111, and the clamping member abuts against the trolley guide rail in the curtain track 200, thereby achieving the clamping and fixing of the first transmission structure 110 and the curtain track 200.

[0124] See Figure 1 and Figure 2This application also provides an electric curtain 1, including a curtain fabric, a control module 50, and a track module 10 as described in any of the above embodiments. The curtain fabric is connected to a sliding member 300 of the track module 10. The control module 50 is drively connected to a transmission device 100 of the track module 10. The control module 50 can control the transmission device 100 to drive the sliding member 300 to slide along the curtain track 200, thereby causing the curtain fabric to slide along the curtain track 200. With the track module 10 of the above embodiments, the electric curtain 1 of this application can use transmission members of the same length to connect the first driving wheel 112 and the first driven wheel 122, and the second driving wheel 113 and the second driven wheel 123 respectively. This eliminates the need for on-site cutting of the transmission members using jigs, reducing assembly steps and lowering costs. Furthermore, the first and second transmission members of the same length can simultaneously adapt to the first driving wheel 112 and the first driven wheel 122, and the second driving wheel 113 and the second driven wheel 123. Even if incorrectly installed, it will not affect the transmission, facilitating assembly.

[0125] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0126] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A transmission device, characterized in that, include: The first transmission structure includes a first transmission box and a first drive wheel and a second drive wheel rotatably disposed in the first transmission box. The first drive wheel and the second drive wheel are spaced apart along a first direction and partially offset along a second direction. as well as The second transmission structure includes a second transmission box and a first driven wheel and a second driven wheel rotatably disposed in the second transmission box. The second transmission box and the first transmission box are spaced apart along the first direction. The first driven wheel corresponds to the position of the first driving wheel, and the second driven wheel corresponds to the position of the second driving wheel. The distance between the first driving wheel and the first driven wheel and the distance between the second driving wheel and the second driven wheel are equal.

2. The transmission device according to claim 1, characterized in that, The first transmission structure further includes a first support component, which is mounted on the first transmission box. The first drive wheel and the second drive wheel are rotatably mounted on the first support component along the first direction and are partially offset along the second direction.

3. The transmission device according to claim 2, characterized in that, The first support component further includes a first bracket and a second bracket. The first bracket is mounted on the first transmission box, the first drive wheel is rotatably mounted on the first bracket, the second bracket is disposed on the first bracket, and the second drive wheel is rotatably disposed on the second bracket and partially offset from the first drive wheel along the second direction.

4. The transmission device according to claim 3, characterized in that, The second bracket is fixedly connected to the first bracket; And / or, the first bracket has a first mounting shaft on its surface near the second bracket, and the first drive wheel is rotatably mounted on the first mounting shaft; And / or, the second bracket has a second mounting shaft on its surface opposite to the first bracket, and the second drive wheel is rotatably mounted on the second mounting shaft; And / or, the surface of the first bracket near the second bracket is provided with a first guide portion, the first guide portion is arranged around the first drive wheel, and together with the first drive wheel, they form a first guide channel; And / or, the second bracket has a second guide portion on its surface away from the first bracket, the second guide portion is arranged around the second drive wheel, and together with the second drive wheel, they form a second guide channel; And / or, the first transmission structure further includes a first support bearing, which is disposed on the first bracket and rotatably mounted on the first drive wheel; And / or, the first transmission structure further includes a second support bearing, which is disposed on the second bracket and rotatably mounted on the second drive wheel; And / or, the first transmission structure further includes a first fastener, which passes through the first bracket and is fixedly installed in the first transmission box.

5. The transmission device according to claim 3, characterized in that, The first transmission box includes a first mounting base and a first cover plate. The first bracket is mounted on the first mounting base. The first drive wheel and the second drive wheel pass through the first mounting base and extend out of the first mounting base. The first cover plate covers the first mounting base. The first mounting base is provided with a first snap-fit ​​part, and the first cover plate is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are correspondingly set and snap-fitted together.

6. The transmission device according to claim 1, characterized in that, The second transmission structure further includes a second support component, which is mounted on the second transmission box. The first driven wheel and the second driven wheel are rotatably mounted on the second support component along the first direction and are partially offset along the second direction.

7. The transmission device according to claim 6, characterized in that, The second support component further includes a first support plate and a second support plate. The second support plate is installed on the second transmission box, and the first support plate is disposed between the second support plate and the second transmission box. The first driven wheel is rotatably disposed between the first support plate and the second support plate, and the second driven wheel is rotatably disposed between the first support plate and the second transmission box.

8. The transmission device according to claim 7, characterized in that, A first connecting shaft is provided on the surface of the first support plate facing the second support plate and / or on the surface of the second support plate facing the first support plate, and the first driven wheel is rotatably mounted on the first connecting shaft; And / or, the second transmission box has a second connecting shaft on the surface facing the first support plate and / or the first support plate has a surface away from the second support plate, and the second driven wheel is rotatably mounted on the second connecting shaft; And / or, the first support plate and / or the second support plate are provided with a third guide portion, the third guide portion being arranged around the first driven wheel and forming a third guide channel with the first driven wheel; And / or, the first support plate and / or the second transmission box are provided with a fourth guide portion, the fourth guide portion being arranged around the second driven wheel and forming a fourth guide channel with the second driven wheel; And / or, the second transmission structure further includes a first connecting bearing, which is disposed on the first support plate and / or the second support plate, and the first driven wheel is rotatably mounted thereon; And / or, the second transmission structure further includes a second connecting bearing, which is disposed on the first support plate and / or the second transmission box, and the second driven wheel is rotatably mounted thereon; And / or, the second transmission structure further includes a second fastener, which passes through the second support plate and is fixedly installed in the second transmission box.

9. The transmission device according to claim 7, characterized in that, The second transmission box includes a second mounting base and a second cover plate, wherein the first support plate is mounted on the second mounting base and the second cover plate is disposed on the second mounting base; The second mounting base is provided with a third snap-fit ​​part, and the second cover plate is provided with a fourth snap-fit ​​part. The third snap-fit ​​part and the fourth snap-fit ​​part are correspondingly set and snap-fit ​​together.

10. The transmission device according to any one of claims 1 to 9, characterized in that, The first driving wheel, the second driving wheel, the first driven wheel, and the second driven wheel are arranged at intervals along the first direction.

11. A track module, characterized in that, The device includes a curtain track, a sliding member, a first transmission member, a second transmission member, and a transmission device as described in any one of claims 1 to 10, wherein the sliding member is slidably disposed on the curtain track; In the transmission device, the first transmission structure and the second transmission structure are located at both ends of the curtain track. The first transmission member and the second transmission member are staggered in the curtain track along the second direction. The first transmission member is respectively connected to the first driving wheel of the first transmission structure and the first driven wheel of the second transmission structure. The second transmission member is respectively connected to the second driving wheel of the first transmission structure and the second driven wheel of the second transmission structure. The first transmission member and the second transmission member are respectively connected to a sliding member to drive the corresponding sliding member to slide along the curtain track.

12. The track module according to claim 11, characterized in that, The curtain track is provided with an independent first movement channel and a second movement channel, which are spaced apart along the second direction. The first transmission component is movably located in the first movement channel, and the second transmission component is movably located in the second movement channel.

13. The track module according to any one of claims 11 to 12, characterized in that, The track module also includes a fixing device, and one end of the first transmission box and / or the second transmission box is provided with a mounting groove, and one end of the curtain track can be inserted into the mounting groove; The fixing device includes a fixing component, a third fastener, and a clamping component. The clamping component passes through the groove of the curtain track and can abut against the curtain track. The fixing component can abut against the surface of the first transmission box away from the curtain track and / or the surface of the second transmission box away from the curtain track. The third fastener passes through the fixing component and the clamping component respectively. The third fastener is used to adjust the distance between the fixing component and the clamping component to fix the first transmission box and / or the second transmission box to the curtain track.

14. The track module according to claim 13, characterized in that, The first transmission box has a mounting hole corresponding to the slide groove on the surface opposite to the curtain track and / or the second transmission box has a mounting hole corresponding to the slide groove. The mounting hole communicates with the slide groove. The clamping member passes through the mounting hole and the slide groove and can abut against the curtain track. And / or, the surface of the first transmission box opposite to the curtain track and / or the surface of the second transmission box opposite to the curtain track are provided with a recessed receiving groove, and the fixing component is at least partially disposed in the receiving groove; And / or, the fixing component includes a fixing body and a connecting body, the connecting body being disposed on the fixing body and extending toward the curtain track, the fixing body being disposed opposite to the clamping member and being able to abut against the surface of the first transmission box away from the curtain track and / or the surface of the second transmission box away from the curtain track, the connecting body extending into the slide groove and located on opposite sides of the clamping member along a first direction for restricting the rotation of the clamping member, and the third fastener passing through the fixing body and the clamping member respectively.

15. An electric curtain, characterized in that, The device includes a curtain, a control module, and a track module as described in any one of claims 11 to 14, wherein the curtain is connected to a sliding member of the track module, the control module is tractively connected to a transmission device of the track module, and the control module is capable of controlling the transmission device to drive the sliding member to slide along the curtain track, thereby causing the curtain to slide along the curtain track.

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