Curtain body moving device

Abstract

The utility model provides a curtain body moving device, the curtain body moving device is used for driving a curtain body to move, the curtain body moving device comprises a transmission belt and a tensioning mechanism, the transmission belt comprises a first belt body and a second belt body, and the first belt body and the second belt body are oppositely arranged in a spaced mode in the height direction of the curtain body moving device; the tensioning mechanism comprises a first tensioning piece and a second tensioning piece, the first tensioning piece abuts against the first belt body, and the second tensioning piece abuts against the second belt body. In the process that the curtain body moving device drives the curtain body to move, belt bodies on the two sides of the transmission belt are always kept in a tightened state, and the problems that due to the fact that the transmission belt is loosened, the curtain body moving device is prone to being blocked, and operation of the sunshade curtain assembly is abnormal are solved.

Description

Technical Field

[0001] This application relates to the field of sunshade curtain technology, and more particularly to a curtain moving device. Background Technology

[0002] Currently, most vehicle sunshades are motorized. During the opening and closing of the curtain, some motorized sunshades use a drive belt to rotate the curtain. As the drive belt rotates, it stretches and deforms, gradually increasing in length. This can cause the belt to loosen, and the belt sections on opposite sides can easily come into contact and interfere with each other. This increases the resistance to the belt's rotation, making the curtain movement mechanism prone to jamming, and ultimately leading to abnormal operation of the sunshade. Utility Model Content

[0003] The purpose of this application is to provide a curtain moving device that, during the opening and rolling of the curtain, ensures that both sides of the transmission belt remain taut, thus solving the problem that the curtain moving device is prone to jamming due to a loose transmission belt, which in turn leads to abnormal operation of the sunshade assembly.

[0004] This application provides a curtain moving device, which is used to drive the curtain to move. The curtain moving device includes:

[0005] A drive belt is used to drive the curtain to move. The drive belt includes a first belt body and a second belt body, which are arranged at intervals relative to each other along the height direction of the curtain moving device.

[0006] The tensioning mechanism includes a first tensioning member and a second tensioning member, wherein the first tensioning member abuts against the first belt body and the second tensioning member abuts against the second belt body.

[0007] In the curtain moving device provided in this application embodiment, a tensioning mechanism is provided. The first and second tensioning members of the tensioning mechanism respectively abut against the first and second belt bodies that are arranged opposite to each other in the transmission belt. This ensures that the belt bodies on both the upper and lower sides of the transmission belt can always remain taut during operation. This solves the problems of abnormal noise, skipped teeth, and climbing noise caused by the transmission belt becoming loose due to the loosening of one side of the belt body during rotation, as well as the problem of increased transmission belt rotation resistance, which increases the system resistance of the curtain moving device and causes jamming and abnormalities in the curtain moving device.

[0008] In one possible implementation, the tensioning mechanism further includes an elastic element in a deformable state, connected between the first tensioning element and the second tensioning element. The elastic deformation force generated when the elastic element is in a deformable state is used to press the first tensioning element against the first belt body of the transmission belt, and to press the second tensioning element against the second belt body of the transmission belt. This ensures that the first tensioning element abuts against the first belt body, and the second tensioning element abuts against the second belt body, thereby ensuring that the belt bodies on both the upper and lower sides of the transmission belt remain taut throughout the rotation process.

[0009] Furthermore, due to the elasticity of the elastic element, it can automatically adjust the elastic deformation force on the first and second tensioning elements according to the looseness of the transmission belt. This ensures the tension of the transmission belt without requiring frequent adjustments to the tensioning mechanism by operators. It avoids the problem of manually adjusting the position of the tensioning wheel required when using a tensioning wheel to tension the transmission belt, and also avoids the high maintenance costs associated with frequent adjustments to the tensioning wheel as the transmission belt loosens. It also avoids the problem of the tensioning wheel loosening after prolonged use, leading to low transmission efficiency, which occurs when the tensioning wheel holds the transmission belt in place. Moreover, by connecting the first and second tensioning elements with the elastic element, the elastic element generates tension on both elements, ensuring that the first and second tensioning elements consistently hold the first and second belt sections of the transmission belt in place, maintaining tension on both sides of the belt during rotation. In addition, the tensile elasticity of the elastic element can reduce the tolerances and deformations of the first and second tensioning elements themselves. Furthermore, the tension of the transmission belt can be adjusted simply by changing the specifications of the elastic element and the installation angle of the first and second tensioning elements without changing their installation positions. This greatly reduces the manpower and difficulty required to install the tensioning mechanism.

[0010] In one possible implementation, the curtain moving device further includes a fixed base, on which both the first tensioning member and the second tensioning member are mounted, and the first tensioning member and the second tensioning member are arranged at a distance from each other.

[0011] In one possible implementation, the mounting base includes a first mounting member and a second mounting member, the first mounting member and the second mounting member being disposed at a distance from each other, a first tensioning member being mounted on the first mounting member, and a second tensioning member being mounted on the second mounting member.

[0012] In one possible implementation, the first mounting member is provided with a first mounting hole, the second mounting member is provided with a second mounting hole, and both the first tensioning member and the second tensioning member include a first mounting portion, a supporting portion and a limiting portion. The supporting portion is connected to the first mounting portion, and the limiting portion protrudes from the periphery of the first mounting portion. The first mounting portion of the first tensioning member is mounted in the first mounting hole, and the first mounting portion of the second tensioning member is mounted in the second mounting hole.

[0013] In one possible implementation, the holding portion of the first tensioner abuts against the first belt body, the limiting portion of the first tensioner protrudes relative to the first mounting hole, and the limiting portion of the first tensioner abuts against the surface of the first mounting member away from the drive belt; the holding portion of the second tensioner abuts against the second belt body, the limiting portion of the second tensioner protrudes relative to the second mounting hole, and the limiting portion of the second tensioner abuts against the surface of the second mounting member away from the drive belt.

[0014] The limiting portions of the first and second tensioning members can respectively abut against the first and second mounting members to confine the first and second tensioning members within the first and second mounting holes of the fixed base, preventing the tensioning mechanism from detaching from the fixed base and reducing the impact on other parts of the curtain moving device when adjusting the tensioning mechanism. Furthermore, the tensioning mechanism can be detachably installed on the fixed base, allowing for convenient and quick installation without removing the drive belt, and eliminating the need to disassemble the entire fixed base when replacing the tensioning mechanism, thus reducing the difficulty of maintenance and replacement.

[0015] In one possible implementation, the first tensioning member and the second tensioning member further include a connecting arm and a second mounting portion. The connecting arm is connected between the first mounting portion and the abutment portion, and the second mounting portion is connected to the connecting arm. The second mounting portion and the first mounting portion are disposed on the same side of the connecting arm and are spaced apart from each other. An elastic member is connected between the second mounting portion of the first tensioning member and the second mounting portion of the second tensioning member.

[0016] In one possible implementation, the elastic member includes a first elastic portion and a second elastic portion, with a first tensioning member fixedly connected to the first elastic portion and a second tensioning member fixedly connected to the second elastic portion.

[0017] The elastic force generated by the first elastic part presses the first tensioner against the first belt body of the transmission belt, and the elastic force generated by the second elastic part presses the second tensioner against the second belt body of the transmission belt. This ensures that the belt bodies on both sides of the transmission belt remain taut during rotation. This solves the problems of abnormal noise, skipped teeth, and climbing noise caused by one side of the transmission belt becoming loose during rotation, as well as the problem of increased transmission belt rotation resistance, which increases the system resistance of the curtain moving device, causing the curtain moving device to jam and the sunshade assembly to malfunction.

[0018] In one possible implementation, both the first elastic portion and the second elastic portion include a first connecting end, a second connecting end, and a torsion portion. The first connecting end and the second connecting end are connected to opposite ends of the torsion portion. The first connecting end of the first elastic portion is fixedly connected to the first mounting member, the first connecting end of the second elastic portion is fixedly connected to the second mounting member, the first tensioning member is fixedly connected to the second connecting end of the first elastic portion, and the second tensioning member is fixedly connected to the second connecting end of the second elastic portion.

[0019] The first elastic portion utilizes its torsional portion to generate torque on the first tensioner when it is in a deformed state, thereby pressing the first tensioner against the first belt body of the transmission belt, thus achieving the abutment between the first tensioner and the first belt body of the transmission belt. Similarly, the second elastic portion utilizes its torsional portion to generate torque on the second tensioner when it is in a deformed state, thereby pressing the second tensioner against the second belt body of the transmission belt, thus achieving the abutment between the second tensioner and the second belt body of the transmission belt, and ensuring that the belt bodies on both sides of the transmission belt remain taut throughout rotation.

[0020] In one possible implementation, the first mounting member has a first mounting hole, and the first elastic portion is mounted in the first mounting hole; the second mounting member has a second mounting hole, and the second elastic portion is mounted in the second mounting hole.

[0021] By configuring the first and second elastic portions of the elastic element to be installed in the first and second mounting holes respectively, the tensioning mechanism can be detachably mounted on the fixed base. This allows for replacement of the tensioning mechanism without removing the fixed base. Furthermore, by using the first and second elastic portions with different properties, and by adjusting the installation angles of the first and second tensioning elements, the magnitude of the resisting force applied to the transmission belt can be adjusted, thereby regulating the tension of the transmission belt. In addition, the first and second elastic portions of the elastic element are spaced apart and do not affect each other. When maintenance or replacement is required, either the first or second elastic portion can be removed individually, saving on maintenance and replacement costs.

[0022] In one possible implementation, the first mounting member is further provided with a first fixing hole, the opening of which is located on the inner wall of the first mounting hole; the second mounting member is further provided with a second fixing hole, the opening of which is located on the inner wall of the second mounting hole; both the first tensioning member and the second tensioning member include a first mounting portion and a supporting portion connected to the first mounting portion; both the first mounting portion of the first tensioning member and the first mounting portion of the second tensioning member are provided with a snap-fit ​​groove.

[0023] The torsion portion of the first elastic part is sleeved on the periphery of the first mounting portion of the first tensioner, the first connecting end of the first elastic part is engaged in the first fixing hole, the second connecting end of the first elastic part is engaged in the engaging groove of the first tensioner, and the abutting portion of the first tensioner abuts against the first belt body.

[0024] The torsion portion of the second elastic part is sleeved on the periphery of the first mounting portion of the second tensioner, the first connecting end of the second elastic part is engaged in the second fixing hole, the second connecting end of the second elastic part is engaged in the engaging groove of the second tensioner, and the abutting portion of the second tensioner abuts against the second belt body.

[0025] In one possible implementation, both the first elastic portion and the second elastic portion include a first connecting end, a second connecting end, and a torsion portion, with the first connecting end and the second connecting end connected to opposite ends of the torsion portion;

[0026] The torsion portion of the first elastic part is mounted on the first mounting member, and the torsion portion of the second elastic part is mounted on the second mounting member. The torsion portions of the first elastic part and the torsion portions of the second elastic part are arranged at intervals relative to each other. The elastic member also includes a connecting portion, which is connected between the first connecting end of the first elastic part and the first connecting end of the second elastic part. The first tensioning member is fixedly connected to the second connecting end of the first elastic part, and the second tensioning member is fixedly connected to the second connecting end of the second elastic part.

[0027] A connecting portion is used to connect the first connecting end of the first elastic portion and the first connecting end of the second elastic portion, so that the first connecting ends of the first elastic portion and the first connecting ends of the second elastic portion remain fixed. At this time, by adjusting the positions of the first tensioning member and the second tensioning member, the second connecting end of the first elastic portion can be twisted relative to the first connecting end of the first elastic portion, and the second connecting end of the second elastic portion can be twisted relative to the first connecting end of the second elastic portion, thereby achieving that the twisted portions of the first elastic portion and the twisted portions of the second elastic portion are both in a deformed state. The first elastic part generates torque on the first tensioner by twisting its torsion portion, pressing the first tensioner against the first belt body of the transmission belt, thereby achieving the abutment between the first tensioner and the first belt body of the transmission belt. The second elastic part generates torque on the second tensioner by twisting its torsion portion, pressing the second tensioner against the second belt body of the transmission belt, thereby achieving the abutment between the second tensioner and the second belt body of the transmission belt. This ensures that both sides of the transmission belt remain taut during rotation, solving problems such as abnormal noise, skipped teeth, and climbing noise caused by one side of the transmission belt becoming loose during rotation, as well as the problem of increased transmission belt rotation resistance, which increases the system resistance of the curtain moving device, causing the curtain moving device to jam and the sunshade assembly to malfunction.

[0028] In one possible implementation, the curtain moving device further includes a first pulley and a second pulley, which are spaced apart from each other along the unfolding direction of the curtain. A transmission belt is sleeved on the outside of the first pulley and the second pulley. Both the first tensioner and the second tensioner include a supporting portion. The supporting portion of the first tensioner abuts against the first belt body, and the supporting portion of the second tensioner abuts against the second belt body. The distance between the supporting portions of the first tensioner and the second tensioner is less than the diameter of the first pulley.

[0029] In one possible implementation, the distance between the abutting portion of the first tensioner and the abutting portion of the second tensioner is less than the radius of the first pulley.

[0030] In one possible implementation, the inner surface of the transmission belt is provided with convex teeth, and both the first pulley and the second pulley are provided with concave teeth, with the convex teeth and concave teeth meshing together. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of the glass assembly provided in the embodiment of this application when the curtain body is in the retracted state;

[0033] Figure 2 for Figure 1 A schematic diagram of the glass assembly shown when the curtain is in the open state;

[0034] Figure 3 for Figure 1 A partial structural schematic diagram of the curtain moving device in the glass assembly shown in the first embodiment;

[0035] Figure 4 for Figure 3 An exploded view of the curtain moving device shown.

[0036] Figure 5 for Figure 4 A schematic diagram of the tensioning mechanism in the curtain moving device shown;

[0037] Figure 6 for Figure 3 A schematic diagram of the curtain moving device shown from another perspective;

[0038] Figure 7 for Figure 3 A schematic diagram of the curtain moving device from another perspective;

[0039] Figure 8 for Figure 1 A partial structural schematic diagram of the curtain moving device in the glass assembly shown in the second embodiment;

[0040] Figure 9 for Figure 8 An exploded view of the curtain moving device shown.

[0041] Figure 10 for Figure 9 A schematic diagram of the disassembly mechanism of the tensioning mechanism in the curtain moving device shown.

[0042] Figure 11 for Figure 10 A schematic diagram of the assembly structure of the first elastic part and the first tensioning element in the tensioning mechanism shown;

[0043] Figure 12 for Figure 10 A schematic diagram of the tensioning mechanism shown, in which the first elastic part and the first tensioning element are mounted on the fixed base;

[0044] Figure 13 for Figure 1 A partial structural schematic diagram of the curtain moving device in the glass assembly shown in the third embodiment;

[0045] Figure 14 for Figure 13 An exploded view of the curtain moving device shown.

[0046] Figure 15 for Figure 14 An exploded view of the tensioning mechanism in the curtain moving device shown.

[0047] Figure 16 for Figure 13 A schematic diagram of the curtain moving device from another perspective;

[0048] Figure 17 for Figure 16 A schematic diagram of part A in the curtain moving device shown;

[0049] Figure 18 for Figure 16 The diagram shows the structure of the curtain moving device from another perspective.

[0050] Reference numerals: 1. Glass assembly; 100. Glass; 300. Sunshade assembly; 310. Curtain moving device; 330. Roller; 350. Curtain; 10. Fixing base; 102. First base; 104. Second base; 106. Guide rail; 11. First mounting hole; 13. Second mounting hole; 101. Mounting hole portion; 103. Clearance hole portion; 18. First fixing hole; 19. Snap-fit ​​component; 191. First snap-fit ​​part; 190. Snap-fit ​​hole; 193. Second snap-fit ​​part; 21. First mounting component; 23. Second mounting component; 30. First pulley; 50. Second pulley; 70. 71. Transmission belt; 73. First belt body; 74. Second belt body; 95. Tensioning mechanism; 96. First tensioning member; 97. Second tensioning member; 98. First anti-detachment member; 99. Second anti-detachment member; 901. First mounting part; 902. Connecting arm; 903. Supporting part; 904. Limiting part; 905. Fixing part; 906. Second mounting part; 907. Connecting hole; 908. Anti-detachment part; 909. Snap-fit ​​groove; 900. Elastic member; 91. First elastic part; 92. Connecting part; 93. Second elastic part; 94. Torsion part; 95. First connecting end; 96. Second connecting end. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] Please see Figure 1 and Figure 2 , Figure 1This is a schematic diagram of the structure of the curtain 350 in the glass assembly 1 provided in the embodiment of this application when it is in the rolled-up state. Figure 2 for Figure 1 This is a schematic diagram of the structure of the glass assembly 1 when the curtain 350 is in the open state. Figure 1 and Figure 2 The diagram only shows a portion of the structure of the curtain moving device 310.

[0053] The glass assembly 1 can be applied to scenarios requiring light blocking, such as vehicles, doors and windows, and glass curtain walls. This application embodiment uses the application of the glass assembly 1 in a vehicle as an example for illustration.

[0054] For ease of description, the following definitions are provided. Figure 1 The length direction of the glass assembly 1 shown is the X-axis direction, the width direction is the Y-axis direction, and the thickness direction is the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are mutually perpendicular. The directional terms such as "upper," "lower," "front," and "rear" used in the description of the glass assembly 1 in this application are based on the appendix to the specification. Figure 1 The description of the orientation shown, with "up" being the positive direction of the Z-axis, "down" being the negative direction of the Z-axis, "front" being the positive direction of the X-axis, and "back" being the negative direction of the X-axis, does not constitute a limitation on the actual application scenario of the glass assembly 1.

[0055] Specifically, the glass assembly 1 includes a glass 100 and a sunshade assembly 300. The glass 100 is mounted on the vehicle frame. In this embodiment, the glass 100 is the sunroof glass of the vehicle. It is understood that in other embodiments, the glass 100 may also be a windshield, a rear windshield, a side window, etc.

[0056] The sunshade assembly 300 includes a curtain moving device 310, a roller 330, and a curtain 350. The curtain moving device 310 is mounted on the glass 100. The roller 330 is mounted on the curtain moving device 310, and the curtain 350 is wound around the roller 330 and connected to the curtain moving device 310. The curtain 350 is used to block the glass 100 and has a rolled-up state and an open state. The curtain moving device 310 can drive the roller 330 to rotate and can also drive the curtain 350 to move, thereby switching the curtain 350 between the rolled-up and open states.

[0057] Specifically, taking the initial state of the curtain 350 in the sunshade assembly 300 as the rolled-up state as an example, the curtain moving device 310 in the sunshade assembly 300 drives the roller 330 to rotate around a first direction (e.g., clockwise), and the curtain moving device 310 drives the curtain 350 to move relative to the roller 330 in the positive X-axis direction, that is, to move the curtain 350 from back to front, so as to switch the curtain 350 from the rolled-up state to the open state. At this time, the curtain 350 blocks the light passing through the glass 100, and the sunshade assembly 300 achieves the light-blocking effect. The curtain moving device 310 drives the roller 330 to rotate around the opposite direction of the first direction (e.g., counterclockwise), and the curtain moving device 310 drives the curtain 350 to move relative to the roller 330 in the negative X-axis direction, that is, to move the curtain 350 from front to back, so as to switch the curtain 350 from the open state to the rolled-up state. At this time, light can pass through the glass 100 and enter the interior of the vehicle.

[0058] In this embodiment, there are two curtain moving devices 310, which are spaced apart along the Y-axis and located at opposite ends of the roller 330. The following description uses the structure of one curtain moving device 310 as an example, where the height direction of the curtain moving device 310 is the Z-axis direction.

[0059] See also Figure 1 , Figure 3 and Figure 4 , Figure 3 for Figure 1 The diagram shows a partial structural schematic of the curtain moving device 310 in the first embodiment of the glass assembly 1. Figure 4 for Figure 3 The diagram shows an exploded view of the curtain moving device 310. Wherein, Figure 3 The second pulley 50 is not shown, and the transmission belt 70 has protruding teeth.

[0060] The curtain moving device 310 includes a fixed base 10, a first pulley 30, and a second pulley 50 (see...). Figure 1 The first pulley 30 and the second pulley 50 are both mounted on the fixed base 10. The transmission belt 70 is mounted on the first pulley 30 and the second pulley 50, and the transmission belt 70 is used to drive the curtain 350 to move.

[0061] Specifically, the fixing seat 10 includes a first seat body 102, a second seat body 104 and a guide rail 106. The first seat body 102 and the second seat body 104 are arranged at intervals relative to each other along the unfolding direction of the curtain 350, and the guide rail 106 is installed between the first seat body 102 and the second seat body 104.

[0062] The first pulley 30 and the second pulley 50 are mounted on the same side of the fixed base 10. Both the first pulley 30 and the second pulley 50 can rotate relative to the fixed base 10, and the first pulley 30 and the second pulley 50 are arranged at intervals relative to each other along the unfolding direction of the curtain 350. The first pulley 30 is mounted on the first seat body 102 of the fixed base 10, and the second pulley 50 is mounted on the second seat body 104 of the fixed base 10.

[0063] A transmission belt 70 is sleeved on the outside of the first pulley 30 and the second pulley 50. The first pulley 30 rotates and drives the transmission belt 70 to rotate, or the second pulley 50 rotates and drives the transmission belt 70 to rotate. In this embodiment, both the first pulley 30 and the second pulley 50 are toothed pulleys, and both the first pulley 30 and the second pulley 50 are provided with concave teeth. The inner surface of the transmission belt 70 is provided with convex teeth. The convex teeth mesh with the concave teeth of the first pulley 30 and the second pulley 50, so as to realize that the first pulley 30 and / or the second pulley 50 rotate and drive the transmission belt 70 to rotate.

[0064] For example, the transmission belt 70 is made of a material with a certain degree of elasticity, with steel wire rope or glass fiber as the reinforcing layer, and covered with a polyurethane or neoprene rubber annular belt. In this embodiment, the transmission belt 70 is an open belt. It is understood that in other embodiments, the transmission belt 70 may also be a closed belt, and this application does not limit this. In this embodiment, when the transmission belt 70 rotates, the transmission belt 70 can drive the curtain 350 to move, thereby realizing the movement of the curtain 350 by the curtain moving device 310.

[0065] The transmission belt 70 includes a first belt body 71 and a second belt body 73, both located between the first pulley 30 and the second pulley 50. The first belt body 71 and the second belt body 73 are spaced apart relative to each other along the height direction of the curtain moving device 310. In this embodiment, the first belt body 71 refers to the belt body that remains on the upper side of the transmission belt 70 during rotation or rest, and the second belt body 73 refers to the belt body that remains on the lower side of the transmission belt 70 during rotation or rest. The first belt body 71 includes a first contact surface, and the second belt body 73 includes a second contact surface.

[0066] In this embodiment, the curtain moving device 310 further includes a motor, a slider, and a pull rod. The motor drives the second pulley 50 to rotate, which in turn drives the transmission belt 70 to rotate. The transmission belt 70, in turn, drives the first pulley 30 to rotate. In this case, the second pulley 50 is the driving pulley, and the first pulley 30 is the driven pulley. It is understood that in other embodiments, the first pulley 30 may also be the driving pulley, the second pulley 50 the driven pulley, and the rotation of the first pulley 30 may drive the transmission belt 70. The slider is fixedly connected to the transmission belt 70. In this embodiment, the slider is connected to the opening of the opening belt. One end of the slider is slidably mounted on the guide rail 106, and the slider can slide relative to the guide rail 106 along the unfolding direction of the curtain 350. The other end of the slider is fixedly connected to the pull rod. The pull rod is used to fixally connect to the end of the curtain 350 opposite to the roller 330.

[0067] In the assembly structure of the sunshade curtain assembly 300, the roller 330 is installed between the first pulleys 30 of the two curtain moving devices 310. One end of the curtain 350 is fixedly connected to the roller 330, and the other end is fixedly connected to the pull rod. When the sunshade curtain assembly 300 is working, the first pulley 30 in the curtain moving device 310 rotates and drives the roller 330 to rotate, thereby realizing that the curtain moving device 310 drives the roller 330 to rotate. At the same time, the rotation of the first pulley 30 drives the transmission belt 70 to rotate, the rotation of the transmission belt 70 drives the pull rod to move, and the movement of the pull rod drives the curtain 350 to move, thereby realizing that the curtain moving device 310 drives the curtain 350 to move, thus realizing the switching between the curtain moving device 310 and the curtain 350 in the rolled-up state and the open state.

[0068] Specifically, when the first pulley 30 rotates in a first direction (e.g., clockwise), the first pulley 30 drives the roller 330 to rotate in the first direction, and the first pulley 30 drives the transmission belt 70 to rotate in the first direction. The transmission belt 70 drives the curtain 350 to move, so that the curtain 350 switches from the rolled-up state to the open state. At this time, the first belt body 71 on the upper side of the transmission belt 70 is in a taut state, and the second belt body 73 on the lower side of the transmission belt 70 is in a slack state.

[0069] When the first pulley 30 rotates in the opposite direction of the first direction (e.g., counterclockwise), the first pulley 30 drives the roller 330 to rotate in the opposite direction of the first direction, and the first pulley 30 drives the transmission belt 70 to rotate in the opposite direction of the first direction. The transmission belt 70 drives the curtain 350 to move, so that the curtain 350 switches from the open state to the rolled-up state. At this time, the first belt body 71 on the upper side of the transmission belt 70 is in a slack state, and the second belt body on the lower side of the transmission belt 70 is in a taut state.

[0070] The applicant's research found that during the operation of the curtain moving device 310, one side of the transmission belt 70 is always in a slack state. The slack side of the belt will bend and arch, causing the transmission belt 70 to loosen. This makes it easy for the slack side of the transmission belt 70 to come into contact with the taut side of the belt. This can lead to the teeth of the slack side meshing with the teeth of the taut side, resulting in a risk of tooth jamming. In other words, the relative contact and interference between the two sides of the transmission belt 70 can cause problems such as abnormal meshing noise, tooth skipping, and climbing noise in the transmission belt 70. On the other hand, it can increase the resistance of the transmission belt 70's rotation, thereby increasing the system resistance of the curtain moving device 310. This can lead to jamming of the curtain moving device 310 and abnormal operation of the sunshade assembly 300.

[0071] To address the issue of one side of the transmission belt 70 becoming loose during rotation, the curtain moving device 310 provided in this embodiment further includes a tensioning mechanism 90, which is mounted on the fixed base 10. The tensioning mechanism 90 includes a first tensioning member 91 and a second tensioning member 93. The first tensioning member 91 abuts against the first belt body 71 of the transmission belt 70, and the second tensioning member 93 abuts against the second belt body 73 of the transmission belt 70.

[0072] In this embodiment, the first base 102 of the fixed base 10 includes a first mounting member 21 and a second mounting member 23, which are arranged at a distance from each other. A first tensioning member 91 is mounted on the first mounting member 21, and a second tensioning member 93 is mounted on the second mounting member 23, so that the tensioning mechanism 90 is mounted on the first base 102, thereby realizing the installation of the tensioning mechanism 90 on the fixed base 10. The tensioning mechanism 90 is disposed between the first pulley 30 and the end of the guide rail 106 near the first pulley 30. Alternatively, in other embodiments, the tensioning mechanism 90 is disposed between the second pulley 50 and the other end of the guide rail 106 near the second pulley 50.

[0073] In this embodiment, both the first tensioning member 91 and the second tensioning member 93 in the tensioning mechanism 90 include a holding portion 903. The holding portion 903 of the first tensioning member 91 abuts against the first belt body 71 of the transmission belt 70, thereby achieving the first tensioning member 91 abutting against the first belt body 71. The holding portion 903 of the second tensioning member 93 abuts against the second belt body 73 of the transmission belt 70, thereby achieving the second tensioning member 93 abutting against the second belt body 73. In this embodiment, the distance between the holding portions 903 of the first tensioning member 91 and the second tensioning member 93 is less than the diameter of the first pulley 30. In some embodiments, the distance between the holding portions 903 of the first tensioning member 91 and the second tensioning member 93 is less than the radius of the first pulley 30.

[0074] In this embodiment, by setting a first tensioning member 91 to abut against the first belt body 71 and a second tensioning member 93 to abut against the second belt body 73, the belt bodies on both the upper and lower sides of the transmission belt 70 can always remain taut during operation. This solves the problems of abnormal noise, skipped teeth, and climbing noise caused by the transmission belt 70 becoming loose due to the loosening of one side of the belt body during rotation, as well as the increased rotational resistance of the transmission belt 70, which increases the system resistance of the curtain moving device 310, causing the curtain moving device 310 to jam and the sunshade assembly 300 to malfunction.

[0075] The tensioning mechanism 90 may further include an elastic element 95, which is connected to both the first tensioning element 91 and the second tensioning element 93, and is in a deformed state. The elastic deformation force generated when the elastic element 95 is in the deformed state is used to press the first tensioning element 91 against the first belt body 71 of the transmission belt 70, and to press the second tensioning element 93 against the second belt body 73 of the transmission belt 70. This ensures that the first tensioning element 91 abuts against the first belt body 71, and the second tensioning element 93 abuts against the second belt body 73, thereby ensuring that the belt bodies on both sides of the transmission belt 70 remain taut during rotation. This solves the problem of one side of the belt body becoming slack during rotation, and also avoids the problem of the tensioning wheel loosening after prolonged use, which is common with tensioning wheel-based transmission belt holding mechanisms, leading to low transmission efficiency. For example, the elastic force generated by the elastic element 95 includes tensile force and torsional force.

[0076] Furthermore, because the elastic element 95 is elastic, it can automatically adjust the elastic deformation force on the first tensioning element 91 and the second tensioning element 93 according to the looseness of the transmission belt 70. This ensures the tightness of the transmission belt 70 without requiring frequent adjustments to the tensioning mechanism 90 by operators. It avoids the problem of manually adjusting the position of the tensioning wheel required when using a tensioning wheel to tension the transmission belt 70, and also avoids the high maintenance costs associated with frequent adjustments to the tensioning wheel as the transmission belt 70 loosens. Additionally, it avoids the problem of the tensioning wheel loosening after prolonged use, leading to low transmission efficiency, which is a consequence of using a tensioning wheel to hold the transmission belt 70. For example, the elastic force generated by the elastic element 95 includes tensile force and torsional force.

[0077] The structure and installation method of the tensioning mechanism 90 are described in detail below with reference to specific embodiments.

[0078] See also Figure 5 , Figure 5 for Figure 4 A schematic diagram of the tensioning mechanism 90 in the curtain moving device 310 shown.

[0079] In the curtain moving device 310 of the first embodiment, the tensioning mechanism 90 includes a first tensioning member 91, a second tensioning member 93, and an elastic member 95. The first tensioning member 91 and the second tensioning member 93 are both installed on the fixed base 10, and the first tensioning member 91 and the second tensioning member 93 are arranged at intervals relative to each other. The elastic member 95 is connected between the first tensioning member 91 and the second tensioning member 93.

[0080] Specifically, both the first tensioning member 91 and the second tensioning member 93 include a first mounting portion 901, a connecting arm 902, a supporting portion 903, a limiting portion 904, a second mounting portion 906, and an anti-detachment portion 908. The connecting arm 902 connects the first mounting portion 901 and the supporting portion 903 to achieve the connection of the supporting portion 903 to the first mounting portion 901. In this embodiment, the supporting portion 903 and the first mounting portion 901 are connected at opposite ends of the connecting arm 902 along the extending direction of the connecting arm 902, and the supporting portion 903 and the first mounting portion 901 are located on opposite sides of the connecting arm 902 along the thickness direction of the connecting arm 902. In this embodiment, both the first mounting portion 901 and the supporting portion 903 are cylindrical.

[0081] A limiting part 904 protrudes from the periphery of the first mounting part 901. In this embodiment, there are two limiting parts 904, located on opposite sides of the first mounting part 901. A second mounting part 906 is connected to the connecting arm 902. The second mounting part 906 and the first mounting part 901 are located on the same side of the connecting arm 902, and the second mounting part 906 and the first mounting part 901 are spaced apart from each other. In this embodiment, the second mounting part 906 and the abutment part 903 are connected to the same end of the connecting arm 902, and the second mounting part 906 and the abutment part 903 are located on opposite sides of the connecting arm 902 along the thickness direction of the connecting arm 902. An anti-detachment part 908 is connected to the end of the abutment part 903 away from the connecting arm 902, and the anti-detachment part 908 protrudes from the periphery of the abutment part 903.

[0082] An elastic element 95 is connected between the second mounting portion 906 of the first tensioner 91 and the second mounting portion 906 of the second tensioner 93, thereby connecting the elastic element 95 between the first tensioner 91 and the second tensioner 93. In this embodiment, the elastic element 95 is a tension spring. The elastic element 95 includes a first end and a second end, which are disposed opposite to each other along the extending direction of the elastic element 95. The first end is connected to the second mounting portion 906 of the first tensioner 91, and the second end is connected to the second mounting portion 906 of the second tensioner 93.

[0083] In this embodiment, the tensioning mechanism 90 further includes a first anti-slip member 92 and a second anti-slip member 94. The first anti-slip member 92 protrudes from the periphery of the second mounting portion 906 of the first tensioning member 91, and is located on the side of the first end of the elastic member 95 away from the abutment portion 903 of the first tensioning member 91, to prevent the first end from slipping off the first tensioning member 91. The second anti-slip member 94 protrudes from the periphery of the second mounting portion 906 of the second tensioning member 93, and is located on the side of the second end of the elastic member 95 away from the abutment portion 903 of the second tensioning member 93, to prevent the second end from slipping off the second tensioning member 93. It can be understood that the second mounting portion 906 of the first tensioning member 91 and the second mounting portion 906 of the second tensioning member 93 may also be provided with a limiting groove, the opening of which is located on the periphery of the second mounting portion 906. At this time, the first end of the elastic member 95 is located in the limiting groove of the first tensioning member 91, and the second end is located in the limiting groove of the second tensioning member 93, so as to prevent the first end of the elastic member 95 from sliding along the circumferential surface of the second mounting portion 906 of the first tensioning member 91, and to prevent the second end from sliding along the circumferential surface of the second mounting portion 906 of the second tensioning member 93, thereby limiting the elastic member 95 to a fixed position and improving the installation stability of the tensioning mechanism 90.

[0084] See also Figure 4 , Figure 6 and Figure 7 , Figure 6 for Figure 3 The diagram shows the structure of the curtain moving device 310 from another viewpoint. Figure 7 for Figure 3 The diagram shows the structure of the curtain moving device 310 from another perspective.

[0085] In the curtain moving device 310 of the first embodiment, the fixing base 10 includes a first mounting member 21 and a second mounting member 23, which are spaced apart. The first mounting member 21 has a first mounting hole 11, and the second mounting member 23 has a second mounting hole 13. In this embodiment, the first mounting hole 11 penetrates the first mounting member 21, and the second mounting hole 13 penetrates the second mounting member 23. In this embodiment, both the first mounting hole 11 and the second mounting hole 13 include a mounting hole portion 101 and a clearance hole portion 103. The clearance hole portion 103 surrounds the mounting hole portion 101 and communicates with it. In this embodiment, there are two clearance hole portions 103, located on opposite sides of the mounting hole portion 101.

[0086] In the assembly structure of the tensioning mechanism 90 and the fixed base 10, the first tensioning member 91 passes through the first mounting hole 11 of the fixed base 10, the second tensioning member 93 passes through the second mounting hole 13, and the elastic member 95 is connected between the abutting portion 903 of the first tensioning member 91 and the abutting portion 903 of the second tensioning member 93. At this time, the deformation state of the elastic member 95 is a stretched state. The first mounting portion 901 of the first tensioning member 91 is mounted in the mounting hole portion 101 of the first mounting hole 11. The limiting portion 904 of the first tensioning member 91 protrudes relative to the first mounting hole 11 and abuts against the surface of the first mounting member 21 facing away from the transmission belt 70, thereby limiting the first tensioning member 91 in the first mounting hole 11 and preventing the first tensioning member 91 from detaching from the first mounting hole 11. The abutting portion 903 of the first tensioning member 91 abuts against the first contact surface of the first belt body 71 in the transmission belt 70. The anti-slip part 908 of the first tensioner 91 is located on the side of the first belt body 71 away from the fixed seat 10, which is used to prevent the first belt body 71 of the transmission belt 70 from slipping off the abutment part 903 and improve the stability of the rotation of the transmission belt 70.

[0087] The first mounting portion 901 of the second tensioner 93 is mounted on the mounting hole portion 101 of the second mounting hole 13. The limiting portion 904 of the second tensioner 93 protrudes relative to the second mounting hole 13 and abuts against the surface of the second mounting member 23 opposite to the drive belt 70 to prevent the second tensioner 93 from disengaging from the second mounting hole 13. The abutting portion 903 of the second tensioner 93 abuts against the second contact surface of the second belt body 73 in the drive belt 70. The anti-detachment portion 908 of the second tensioner 93 is located on the side of the second belt body 73 opposite to the fixing seat 10 to prevent the second belt body 73 of the drive belt 70 from slipping off the abutting portion 903, thereby improving the rotational stability of the drive belt 70.

[0088] During the assembly of the tensioning mechanism 90 and the fixed base 10, taking the installation of the first tensioning member 91 as an example, the first tensioning member 91 can be inserted into the first mounting hole 11. At this time, the first mounting part 901 of the first tensioning member 91 passes through the mounting hole portion 101 of the first mounting hole 11, and the limiting part 904 protrudes from the clearance hole portion 103, and the limiting part 904 is exposed relative to the first mounting hole 11. Then, the first tensioning member 91 is rotated so that the limiting part 904 abuts against the surface of the first mounting member 21 in the fixed base 10 away from the transmission belt 70, so as to limit the first tensioning member 91 in the first mounting hole 11. At this time, the limiting part 904 of the second tensioning member 93 abuts against the surface of the second mounting member 23 away from the transmission belt 70.

[0089] In the curtain moving device 310 provided in the first embodiment, an elastic element 95 is provided between the first tensioning element 91 and the second tensioning element 93, so that the elastic element 95 generates tension on both the first tensioning element 91 and the second tensioning element 93. This ensures that the first tensioning element 91 and the second tensioning element 93 always maintain resistance against the first belt body 71 and the second belt body 73 of the transmission belt 70, respectively. Both sides of the transmission belt 70 can always remain taut during rotation, thereby solving the problem of one side of the transmission belt 70 becoming loose during rotation. This also solves the problems of abnormal noise, skipped teeth, and climbing noise caused by one side of the transmission belt 70 becoming loose during rotation, as well as the problem of increased rotational resistance of the transmission belt 70, which increases the system resistance of the curtain moving device 310, causing the curtain moving device 310 to jam and the sunshade curtain assembly 300 to malfunction.

[0090] In addition, the tensioning mechanism 90 adopts a structure in which the elastic element 95 is assembled with the first tensioning element 91 and the second tensioning element 93. The tensile elasticity of the elastic element 95 can reduce the tolerances and deformations of the first tensioning element 91 and the second tensioning element 93 themselves. Furthermore, the tension of the transmission belt 70 can be adjusted by simply changing the specifications of the elastic element 95 and the installation angles of the first tensioning element 91 and the second tensioning element 93 without changing the installation positions of the first tensioning element 91 and the second tensioning element 93. This greatly reduces the manpower and difficulty required to install the tensioning mechanism 90.

[0091] Furthermore, by providing a first mounting hole 11 on the first mounting member 21 of the fixed base 10 and a second mounting hole 13 on the second mounting member 23, and by providing a limiting part 904 on both the first tensioning member 91 and the second tensioning member 93, after the first tensioning member 91 and the second tensioning member 93 pass through the first mounting hole 11 and the second mounting hole 13 respectively, the limiting part 904 of the first tensioning member 91 and the limiting part 904 of the second tensioning member 93 can respectively limit the first tensioning member 91 and the second tensioning member 93 to the first mounting hole 11 and the second mounting hole 13 of the fixed base 10 by abutting against the first mounting member 21 and the second mounting member 23, thereby preventing the tensioning mechanism 90 from detaching from the fixed base 10, and at the same time reducing the impact on other parts of the curtain moving device 310 when adjusting the tensioning mechanism 90.

[0092] Furthermore, when using a tensioning wheel to hold the drive belt, installing the tensioning wheel requires removing the fixing seat 10 where the first pulley 30 and the second pulley 50 are installed before fixing the drive belt 70. Since the installation space for the curtain moving device is usually limited, installing and replacing the drive belt 70 is complex. Moreover, the tensioning process of the drive belt 70 requires a certain tension force, which cannot be met manually. Adjusting the tension of the drive belt 70 using tension force is complex and difficult. In this embodiment, the tensioning mechanism 90 can be detachably installed on the fixing seat 10. This allows for convenient and quick installation of the tensioning mechanism 90 on the fixing seat 10 without removing the drive belt 70. Furthermore, replacing the tensioning mechanism 90 does not require disassembling the entire fixing seat 10, reducing the difficulty of maintenance and replacement.

[0093] See Figure 8 and Figure 9 , Figure 8 for Figure 1 The diagram shows a partial structural schematic of the curtain moving device 310 in the second embodiment of the glass assembly 1. Figure 9 for Figure 8 An exploded view of the curtain moving device 310 shown.

[0094] The difference between the curtain moving device 310 of the second embodiment and the curtain moving device 310 of the first embodiment is that the tensioning mechanism 90 of the curtain moving device 310 of the second embodiment has a different structure and installation method than the tensioning mechanism 90 of the curtain moving device 310 of the first embodiment.

[0095] Specifically, in the curtain moving device 310 of the second embodiment, the tensioning mechanism 90 includes a first tensioning member 91, a second tensioning member 93, and an elastic member 95. The elastic member 95 includes a first elastic portion 97 and a second elastic portion 99, both of which are mounted on the fixed base 10 and are spaced apart from each other, and both are in a deformed state. In this embodiment, the first elastic portion 97 is mounted in the first mounting hole 11 of the fixed base 10, and the second elastic portion 99 is mounted in the second mounting hole 13 of the fixed base 10, with the second elastic portion 99 and the first elastic portion 97 spaced apart from each other. The first tensioning member 91 is fixedly connected to the first elastic portion 97, and the second tensioning member 93 is fixedly connected to the second elastic portion 99.

[0096] See also Figure 10 , Figure 10 for Figure 9 A schematic diagram of the disassembly mechanism of the tensioning mechanism 90 in the curtain moving device 310 shown.

[0097] In this embodiment, the first tensioning member 91 and the second tensioning member 93 have roughly the same structure as the first tensioning member 91 and the second tensioning member 93 of the tensioning mechanism 90 in the curtain moving device 310 of the first embodiment. Specifically, the first tensioning member 91 and the second tensioning member 93 in this embodiment both include a first mounting part 901, a connecting arm 902, a supporting part 903, and an anti-detachment part 908. The connection relationship and function of the first mounting part 901, the connecting arm 902, the supporting part 903, the limiting part 904, and the anti-detachment part 908 can be referred to the first tensioning member 91 and the second tensioning member 93 of the first embodiment, and will not be repeated here.

[0098] In this embodiment, the first tensioning member 91 and the second tensioning member 93 further include a fixing part 905, which protrudes from the circumferential surface of the first mounting part 901. In this embodiment, the first tensioning member 91 and the second tensioning member 93 are also provided with a snap-fit ​​groove 909. The opening of the snap-fit ​​groove 909 is located on the end face of the first mounting part 901 opposite to the connecting arm 902, and the snap-fit ​​groove 909 penetrates the circumferential surface of the first mounting part 901.

[0099] Both the first elastic portion 97 and the second elastic portion 99 include a torsion portion 981, a first connecting end 983, and a second connecting end 985, which are connected to opposite ends of the torsion portion 981 along its extension direction. In this embodiment, both the first elastic portion 97 and the second elastic portion 99 are torsion springs.

[0100] The following is a detailed description of how the tensioning mechanism 90 is mounted on the fixed base 10 in this embodiment.

[0101] See also Figure 9 , Figure 11 and Figure 12 , Figure 11 for Figure 10 The diagram shows the assembly structure of the first elastic part 97 and the first tensioning member 91 in the tensioning mechanism 90. Figure 12 for Figure 10 The diagram shows the structure of the tensioning mechanism 90, in which the first elastic part 97 and the first tensioning element 91 are mounted on the fixed base 10. Figure 12 The second fixing hole is not shown from the viewing angle.

[0102] In this embodiment, the first mounting member 21 in the fixing base 10 is further provided with a first fixing hole 18, the opening of which is located on the inner wall of the first mounting hole 11. The second mounting member 23 is further provided with a second fixing hole, the opening of which is located on the inner wall of the second mounting hole 13. In this embodiment, the first fixing hole 18 and the second fixing hole are through holes, the first fixing hole 18 penetrating through the inner wall of the first mounting hole 11, and the second fixing hole penetrating through the inner wall of the second mounting hole 13.

[0103] In the assembly structure of the first elastic portion 97, the first tensioner 91, and the fixing base 10, the first elastic portion 97 is installed in the first mounting hole 11 of the fixing base 10. The torsional portion 981 of the first elastic portion 97 is sleeved around the periphery of the first mounting portion 901 of the first tensioner 91, abuts against the fixing portion 905 of the first tensioner 91, and is located within the first mounting hole 11. The first connecting end 983 is engaged with the first fixing hole 18 to fix the first connecting end 983 of the first elastic portion 97 to the first mounting base 10. The second connecting end 985 is engaged with the engaging groove 909 of the first tensioner 91 to fix the first tensioner 91 to the second connecting end 985 of the first elastic portion 97, thereby achieving a fixed connection between the first tensioner 91 and the first elastic portion 97. At this time, the fixing portion 905 of the first tensioner 91 prevents the first elastic portion 97 from moving, thereby improving the installation stability of the first elastic portion 97.

[0104] Continue reading Figures 8 to 10 The assembly method of the second elastic portion 99, the second tensioning member 93, and the fixing base 10 is the same as that of the first elastic portion 97, the first tensioning member 91, and the fixing base 10. Specifically, the second elastic portion 99 is installed in the second mounting hole 13 of the fixing base 10. The torsional portion 981 of the second elastic portion 99 is sleeved around the periphery of the first mounting portion 901 of the second tensioning member 93, and the torsional portion 981 of the second elastic portion 99 abuts against the fixing portion 905 of the second tensioning member 93. The first connecting end 983 is engaged with the second fixing hole to fix the first connecting end 983 of the second elastic portion 99 to the fixing base 10. The second connecting end 985 is engaged with the engaging groove 909 of the second tensioning member 93 to fix the second tensioning member 93 to the second connecting end 985 of the second elastic portion 99, thereby achieving a fixed connection between the second tensioning member 93 and the second elastic portion 99. At this time, the fixing part 905 of the second tensioner 93 is used to prevent the second elastic part 99 from moving, thereby improving the installation stability of the second elastic part 99.

[0105] In this configuration, both the torsion portion 981 of the first elastic portion 97 and the torsion portion 981 of the second elastic portion 99 are in a deformed state, and the deformed state is a torsion state. Specifically, compared to the first elastic portion 97 in its natural state, after the first elastic portion 97 is assembled with the fixing seat 10 and the first tensioning member 91, the second connecting end 985 in the first elastic portion 97 is twisted relative to the first connecting end 983, so that the torsion portion 981 of the first elastic portion 97 is in a torsion state and generates torque, thereby pressing the first tensioning member 91 against the first belt body 71 of the transmission belt 70, thereby realizing that the abutting portion 903 of the first tensioning member 91 abuts against the first belt body 71 of the transmission belt 70. Compared to the second elastic portion 99 in its natural state, after the second elastic portion 99 is assembled with the fixed base 10 and the second tensioner 93, the second connecting end 985 in the first elastic portion 97 is twisted relative to the first connecting end 983, so that the twisting portion 981 of the second elastic portion 99 is in a twisted state and generates torque, so as to press the second tensioner 93 against the second belt body 73 of the transmission belt 70, thereby realizing that the abutting portion 903 of the second tensioner 93 abuts against the second belt body 73 of the transmission belt 70, thereby realizing that both sides of the transmission belt 70 are always in a taut state during rotation.

[0106] In the tensioning mechanism 90 provided in this embodiment, an elastic element 95 is provided, including a first elastic portion 97 and a second elastic portion 99. A first tensioning element 91 is fixedly connected to the first elastic portion 97, and a second tensioning element 93 is fixedly connected to the second elastic portion 99. This allows the elastic force generated by the first elastic portion 97 to press the first tensioning element 91 against the first belt body 71 of the transmission belt 70, and the elastic force generated by the second elastic portion 99 to press the second tensioning element 93 against the second belt body 73 of the transmission belt 70. This ensures that the belt bodies on both sides of the transmission belt 70 are always taut during rotation. This solves the problems of abnormal noise, skipped teeth, and climbing noise caused by the loosening of one side of the transmission belt 70 during rotation, as well as the increased rotational resistance of the transmission belt 70, which increases the system resistance of the curtain moving device 310, causing the curtain moving device 310 to jam and the sunshade assembly 300 to malfunction.

[0107] Specifically, in the second embodiment, the torsion portion 981 of the first elastic portion 97 is in a deformed state to generate torque on the first tensioner 91, thereby pressing the first tensioner 91 against the first belt body 71 of the transmission belt 70, thus achieving the abutment between the first tensioner 91 and the first belt body 71 of the transmission belt 70. Similarly, the torsion portion 981 of the second elastic portion 99 is in a deformed state to generate torque on the second tensioner 93, thereby pressing the second tensioner 93 against the second belt body 73 of the transmission belt 70, thus achieving the abutment between the second tensioner 93 and the second belt body 73 of the transmission belt 70, thereby ensuring that the belt bodies on both sides of the transmission belt 70 remain taut during rotation.

[0108] Furthermore, by setting the first elastic portion 97 and the second elastic portion 99 of the elastic element 95 to be respectively installed in the first mounting hole 11 and the second mounting hole 13, the tensioning mechanism 90 can be detachably installed on the fixed base 10. The tensioning mechanism 90 can be replaced without removing the fixed base 10. Moreover, by using the first elastic portion 97 and the second elastic portion 99 with different properties, and by adjusting the installation angles of the first tensioning member 91 and the second tensioning member 93, the magnitude of the resisting force applied to the transmission belt 70 can be adjusted, thereby achieving adjustment of the tension of the transmission belt 70. In addition, the first elastic portion 97 and the second elastic portion 99 in the elastic element 95 are spaced apart and do not affect each other. When maintenance or replacement is required, the first elastic portion 97 or the second elastic portion 99 can be removed individually, saving maintenance and replacement costs.

[0109] See Figure 13 , Figure 14 and Figure 15 , Figure 13 for Figure 1 The schematic diagram shown is a partial structural representation of the curtain moving device 310 in the third embodiment of the glass assembly 1. Figure 14 for Figure 13 The exploded view of the curtain moving device 310 shown is shown. Figure 15 for Figure 14 An exploded view of the tensioning mechanism 90 in the curtain moving device 310 shown.

[0110] The difference between the curtain moving device 310 of the third embodiment and the curtain moving device 310 of the second embodiment is that the elastic element 95 in the tensioning mechanism 90 of the curtain moving device 310 of the third embodiment further includes a connecting portion 98, which is connected between the first elastic portion 97 and the second elastic portion 99.

[0111] Specifically, in the tensioning mechanism 90 of the curtain moving device 310 in the third embodiment, both the first tensioning member 91 and the second tensioning member 93 are provided with connecting holes 907, which are used to connect with the elastic member 95. In this embodiment, the connecting hole 907 of the first tensioning member 91 extends through the first tensioning member 91 along its extending direction, and the connecting hole 907 of the second tensioning member 93 extends through the second tensioning member 93 along its extending direction. In this embodiment, both the first tensioning member 91 and the second tensioning member 93 are cylinders.

[0112] The elastic element 95 includes a first elastic portion 97, a second elastic portion 99, and a connecting portion 98. Both the first elastic portion 97 and the second elastic portion 99 are mounted on the fixing base 10 and are spaced apart from each other. Each of the first elastic portion 97 and the second elastic portion 99 includes a torsion portion 981, a first connecting end 983, and a second connecting end 985. The first connecting end 983 and the second connecting end 985 are connected to opposite ends of the torsion portion 981 along its extension direction. The connecting portion 98 connects the first connecting end 983 of the first elastic portion 97 and the first connecting end 983 of the second elastic portion 99, thereby connecting the first elastic portion 97 and the second elastic portion 99.

[0113] In the assembled tensioning mechanism 90, the second connecting end 985 of the first elastic portion 97 of the elastic element 95 is fixedly connected to the connecting hole 907 of the first tensioning element 91 to achieve a fixed connection between the first tensioning element 91 and the first elastic portion 97. The second connecting end 985 of the second elastic portion 99 is fixedly connected to the connecting hole 907 of the second tensioning element 93 to achieve a fixed connection between the second tensioning element 93 and the second elastic portion 99. Thus, the elastic element 95 is connected to both the first tensioning element 91 and the second tensioning element 93. In this embodiment, the first tensioning element 91 and the second tensioning element 93 are injection-molded sleeves, the elastic element 95 is a torsion spring, and the first elastic portion 97, the second elastic portion 99, and the connecting portion 98 are integrally formed. The elastic element 95 is integrally formed with the first tensioning element 91 and the second tensioning element 93 through injection molding.

[0114] See Figure 16 and Figure 17 , Figure 16 for Figure 13 The diagram shows the structure of the curtain moving device 310 from another perspective. Figure 17 for Figure 16 The diagram shows the structure of part A in the curtain moving device 310. Figure 16 and Figure 17 The dashed line indicates the position of the tensioning mechanism 90 in its natural state after it is installed on the fixed base 10.

[0115] In the assembly structure of the tensioning mechanism 90 and the fixed base 10, the fixed base 10 includes a first mounting member 21 and a second mounting member 23, which are spaced apart from each other. In this embodiment, both the first mounting member 21 and the second mounting member 23 are fixed posts. The torsional portion 981 of the first elastic portion 97 in the elastic member 95 is sleeved on the outside of the first mounting member 21, so that the torsional portion 981 of the first elastic portion 97 is installed on the first mounting member 21 of the fixed base 10, thereby realizing the installation of the first elastic portion 97 on the fixed base 10. The torsional portion 981 of the second elastic portion 99 is sleeved on the outside of the second mounting member 23, so that the torsional portion 981 of the second elastic portion 99 is installed on the second mounting member 23 of the fixed base 10, and is spaced apart from the torsional portion 981 of the first elastic portion 99, thereby realizing the installation of the second elastic portion 99 on the fixed base 10, and thus realizing the installation of the elastic member 95 on the fixed base 10, and thus realizing the installation of the tensioning mechanism 90 on the fixed base 10.

[0116] In order to prevent the tensioning mechanism 90 from detaching from the fixed seat 10 during operation of the curtain moving device 310, the first seat body 102 of the fixed seat 10 also includes a snap-fit ​​member 19. The snap-fit ​​member 19 is used to snap with the connecting part 98 of the elastic member 95 to limit the elastic member 95 to the fixed seat 10, thereby limiting the tensioning mechanism 90 to the fixed seat 10 and preventing the tensioning mechanism 90 from detaching from the fixed seat 10 during the rotation of the transmission belt 70.

[0117] See also Figure 18 , Figure 18 for Figure 16 The diagram shows the structure of the curtain moving device 310 from another perspective. Specifically, the latching member 19 includes a first latching portion 191 and a second latching portion 193, which are spaced apart. In this embodiment, the first latching portion 191 has a latching hole 190 that penetrates through the first latching portion 191. In this embodiment, the opening of the latching hole 190 is located on the surface of the first latching portion 191 facing the second latching portion 193, and the latching hole 190 penetrates both end faces of the first latching portion 191 along its extending direction. There are two second latching portions 193, which are spaced apart. The connecting portion 98 of the elastic member 95 is located between the first snap-fit ​​portion 191 and the second snap-fit ​​portion 193, and the connecting portion 98 snaps into the snap-fit ​​hole 190 to achieve the snap-fit ​​of the connecting portion 98 with the first snap-fit ​​portion 191, thereby achieving the snap-fit ​​of the snap-fit ​​member 19 with the connecting portion 98, and thus achieving the tensioning mechanism 90 to be limited to the fixed seat 10, avoiding the risk of the tensioning mechanism 90 disengaging from the fixed seat during the operation of the curtain moving device 310.

[0118] When installing the tensioning mechanism 90, first squeeze the transmission belt 70, then place the first tensioning member 91 and the second tensioning member 93 of the tensioning mechanism 90 on opposite sides of the transmission belt 70. Next, push the torsional portions 981 of the first elastic portion 97 and the second elastic portion 99 of the elastic member 95 into the first mounting member 21 and the second mounting member 23 of the fixing base 10, respectively. When the connecting portion 98 of the elastic member 95 is fully engaged in the snap-fit ​​hole 190 of the snap-fit ​​member 19, the tensioning mechanism 90 is installed. When the tensioning mechanism 90 needs to be replaced, simply squeeze the transmission belt 70 and remove the tensioning mechanism 90 from the first mounting member 21 and the second mounting member 23 of the fixing base 10.

[0119] Continue reading Figure 17 When the curtain moving device 310 removes the drive belt 70 and the tensioning mechanism 90 is in its natural state, the first tensioning member 91 and the second tensioning member 93 of the tensioning mechanism 90 are located at... Figure 17 At the position indicated by the dotted line. After the tensioning mechanism 90 is installed on the fixed base 10, the first tensioning member 91 and the second tensioning member 93 move to the position indicated by the solid line. Compared with the tensioning mechanism 90 in its natural state, the first tensioning member 91 moves upward. The movement of the first tensioning member 91 causes the second connecting end 985 of the first elastic part 97 in the elastic member 95 to twist relative to the first connecting end 983. This causes the twisted part 981 of the first elastic part 97 in the elastic member 95 to be in a deformed state, generating torque to press the first tensioning member 91 against the first belt body 71 of the transmission belt 70. The second tensioner 93 moves downward. The movement of the second tensioner 93 causes the second connecting end 985 of the second elastic part 99 in the elastic member 95 to twist relative to the first connecting end 983. This causes the twisted part 981 of the second elastic part 99 of the elastic member 95 to be in a deformed state and generate torque, so as to press the second tensioner 93 against the second belt body 73 of the transmission belt 70. This achieves the first tensioner 91 and the second tensioner 93 abutting against the transmission belt 70, thereby ensuring that both sides of the transmission belt 70 are always in a taut state during rotation.

[0120] In the tensioning mechanism 90 provided in the third embodiment, an elastic member 95 includes a connecting portion 98, which connects the first connecting end 983 of the first elastic portion 97 and the first connecting end 983 of the second elastic portion 99, so that the first connecting end 983 of the first elastic portion 97 and the first connecting end 983 of the second elastic portion 99 remain fixed. At this time, by adjusting the position of the first tensioning member 91 and the position of the second tensioning member 93, the second connecting end 985 of the first elastic portion 97 can be twisted relative to the first connecting end 983 of the first elastic portion 97, and the second connecting end 985 of the second elastic portion 99 can be twisted relative to the first connecting end 983 of the second elastic portion 99, thereby achieving that the twisted portion 981 of the first elastic portion 97 and the twisted portion 981 of the second elastic portion 99 are both in a deformed state. The first elastic portion 97 generates torque on the first tensioner 91 through its torsion part 981, pressing the first tensioner 91 against the first belt body 71 of the transmission belt 70, thereby achieving the abutment between the first tensioner 91 and the first belt body 71 of the transmission belt 70. The second elastic portion 99 generates torque on the second tensioner 93 through its torsion part 981, pressing the second tensioner 93 against the second belt body 73 of the transmission belt 70, thereby achieving the abutment between the second tensioner 93 and the second belt body 73 of the transmission belt 70. This ensures that the belt bodies on both sides of the transmission belt 70 remain taut during rotation, solving the problems of abnormal noise, skipped teeth, and climbing noise caused by one side of the transmission belt 70 becoming loose during rotation, as well as the problem of increased rotational resistance of the transmission belt 70, which increases the system resistance of the curtain moving device 310, causing the curtain moving device 310 to jam and the sunshade assembly 300 to malfunction.

[0121] Furthermore, in this embodiment, the tensioning mechanism 90 is configured such that the torsion portion 981 of the first elastic portion 97 of the elastic member 95 is sleeved on the outside of the first mounting member 21 of the fixed base 10, and the torsion portion 981 of the second elastic portion 99 is sleeved on the outside of the second mounting member 23, so that the elastic member 95 can be detachably installed on the fixed base 10, thereby enabling the tensioning mechanism 90 to be detachably installed on the fixed base 10. On the one hand, the tensioning mechanism 90 can be conveniently and quickly installed on the fixed base 10 without removing the transmission belt 70. On the other hand, when replacing the tensioning mechanism 90, the entire fixed base 10 does not need to be disassembled, reducing the difficulty of maintenance and replacement.

[0122] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A curtain moving device, characterized by, The curtain moving device is used to drive the curtain to move, and the curtain moving device includes: A drive belt is used to drive the curtain to move. The drive belt includes a first belt body and a second belt body, which are arranged at intervals relative to each other along the height direction of the curtain moving device. The tensioning mechanism includes a first tensioning member and a second tensioning member, wherein the first tensioning member abuts against the first belt body and the second tensioning member abuts against the second belt body.

2. The shade moving device of claim 1, wherein, The tensioning mechanism further includes an elastic element in a deformed state, which is connected between the first tensioning element and the second tensioning element.

3. The shade moving device of claim 2, wherein, The curtain moving device further includes a fixed base, and the first tensioning member and the second tensioning member are both installed on the fixed base, and the first tensioning member and the second tensioning member are arranged at a distance from each other.

4. The shade moving apparatus according to claim 3, wherein The fixing base includes a first mounting component and a second mounting component, the first mounting component and the second mounting component are arranged at a distance from each other, the first tensioning component is mounted on the first mounting component, and the second tensioning component is mounted on the second mounting component.

5. The shade moving device of claim 4, wherein, The first mounting member has a first mounting hole, and the second mounting member has a second mounting hole. Both the first tensioning member and the second tensioning member include a first mounting part, a supporting part, and a limiting part. The supporting part is connected to the first mounting part, and the limiting part protrudes from the periphery of the first mounting part. The first mounting part of the first tensioning member is mounted in the first mounting hole, and the first mounting part of the second tensioning member is mounted in the second mounting hole.

6. The shade moving device of claim 5, wherein, The first tensioner's abutting portion abuts against the first belt body, the first tensioner's limiting portion protrudes relative to the first mounting hole, and the first tensioner's limiting portion abuts against the surface of the first mounting member opposite to the drive belt; the second tensioner's abutting portion abuts against the second belt body, the second tensioner's limiting portion protrudes relative to the second mounting hole, and the second tensioner's limiting portion abuts against the surface of the second mounting member opposite to the drive belt.

7. The shade moving device of claim 5, wherein, The first tensioning member and the second tensioning member further include a connecting arm and a second mounting portion. The connecting arm is connected between the first mounting portion and the abutment portion. The second mounting portion is connected to the connecting arm. The second mounting portion and the first mounting portion are disposed on the same side of the connecting arm and are spaced apart from each other. The elastic member is connected between the second mounting portion of the first tensioning member and the second mounting portion of the second tensioning member.

8. The shade moving apparatus according to claim 4, wherein The elastic element includes a first elastic portion and a second elastic portion, the first tensioning element is fixedly connected to the first elastic portion, and the second tensioning element is fixedly connected to the second elastic portion.

9. The curtain moving device according to claim 8, characterized in that, Both the first elastic portion and the second elastic portion include a first connecting end, a second connecting end, and a torsion portion. The first connecting end and the second connecting end are connected to opposite ends of the torsion portion. The first connecting end of the first elastic portion is fixedly connected to the first mounting member, the first connecting end of the second elastic portion is fixedly connected to the second mounting member, the first tensioning member is fixedly connected to the second connecting end of the first elastic portion, and the second tensioning member is fixedly connected to the second connecting end of the second elastic portion.

10. The shade moving device of claim 9, wherein, The first mounting member has a first mounting hole, and the first elastic portion is mounted in the first mounting hole. The second mounting member has a second mounting hole, and the second elastic portion is mounted in the second mounting hole.

11. The shade moving device of claim 10, wherein, The first mounting member is further provided with a first fixing hole, the opening of the first fixing hole being located on the inner wall of the first mounting hole. The second mounting member is further provided with a second fixing hole, the opening of the second fixing hole being located on the inner wall of the second mounting hole. Both the first tensioning member and the second tensioning member include a first mounting part and a supporting part connected to the first mounting part. Both the first mounting part of the first tensioning member and the first mounting part of the second tensioning member are provided with a snap-fit ​​groove. The torsion portion of the first elastic part is sleeved on the periphery of the first mounting portion of the first tensioner, the first connecting end of the first elastic part is engaged with the first fixing hole, the second connecting end of the first elastic part is engaged with the engaging groove of the first tensioner, and the abutting portion of the first tensioner abuts against the first belt body. The torsion portion of the second elastic part is sleeved on the periphery of the first mounting portion of the second tensioner, the first connecting end of the second elastic part is engaged with the second fixing hole, the second connecting end of the second elastic part is engaged with the engaging groove of the second tensioner, and the abutting portion of the second tensioner abuts against the second belt body.

12. The shade moving device of claim 8, wherein, Both the first elastic portion and the second elastic portion include a first connecting end, a second connecting end, and a torsion portion, wherein the first connecting end and the second connecting end are connected to opposite ends of the torsion portion; The torsion portion of the first elastic part is mounted on the first mounting member, and the torsion portion of the second elastic part is mounted on the second mounting member. The torsion portions of the first elastic part and the torsion portions of the second elastic part are arranged at intervals relative to each other. The elastic member also includes a connecting portion, which is connected between the first connecting end of the first elastic part and the first connecting end of the second elastic part. The first tensioning member is fixedly connected to the second connecting end of the first elastic part, and the second tensioning member is fixedly connected to the second connecting end of the second elastic part.

13. The curtain moving apparatus according to any one of claims 1 to 12, wherein The curtain moving device further includes a first pulley and a second pulley, which are arranged at intervals relative to each other along the unfolding direction of the curtain. The transmission belt is sleeved on the outside of the first pulley and the second pulley. Both the first tensioning member and the second tensioning member include a supporting portion. The supporting portion of the first tensioning member abuts against the first belt body, and the supporting portion of the second tensioning member abuts against the second belt body. The distance between the supporting portions of the first tensioning member and the supporting portions of the second tensioning member is less than the diameter of the first pulley.

14. The shade moving device of claim 13, wherein, The distance between the abutting portion of the first tensioner and the abutting portion of the second tensioner is less than the radius of the first pulley.

15. The shade moving device of claim 13, wherein, The inner surface of the transmission belt is provided with convex teeth, and both the first pulley and the second pulley are provided with concave teeth, with the convex teeth meshing with the concave teeth.

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