Curtain system and adjusting device thereof

Abstract

The utility model discloses a curtain system and an adjusting device thereof, the adjusting device comprises a shell, a tensioning structure and a driving structure, and the shell is used for being fixed with a wall; the tensioning structure comprises a first wheel and a second wheel, the first wheel is movably connected to the shell, the second wheel is connected with the shell, the first wheel and the second wheel are sequentially arranged in the length direction of the shell, and the first wheel and the second wheel are used for winding a bead chain; the driving structure is connected with the first wheel and used for driving the first wheel to move in the width direction of the shell. According to the adjusting device, the driving structure drives the first wheel to move so as to adjust the length of the bead chain wound on the first wheel and the second wheel, so that the effect of tensioning the bead chain is achieved, and the bead chain is prevented from being separated from the power wheel; when the curtain system adopting the adjusting device is used, the power component and the adjusting device are mutually independent and do not interfere with each other in installation and maintenance, so that the integral structure of the curtain system is simplified, and the curtain system is convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of electric curtains, and in particular to a curtain system and an adjusting device thereof. Background Art

[0002] In recent years, with the trend of smart homes, more and more automated homes have emerged, such as electric curtains. Compared with traditional manual curtains, electric curtains are convenient and fast. There is no need to pull the curtains manually, which saves effort and time. They are also not restricted by location and can be opened and closed remotely, bringing great convenience to users' lives.

[0003] However, after long-term use of electric curtains, the circumference of the bead chain will become longer due to the long-term tension on the bead chain, causing it to slip from the power wheel. The motor cannot drive the bead chain to rotate, causing the bead chain to fail to work normally and affecting the opening and closing of the curtains. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a curtain system and an adjusting device thereof, which can tension a bead chain to prevent the bead chain from being disengaged from a power wheel.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] An adjusting device includes a shell, a tensioning structure and a driving structure, the shell is used to be fixed to a wall; the tensioning structure includes a first wheel and a second wheel, the first wheel is movably connected to the shell, the second wheel is connected to the shell, the first wheel and the second wheel are arranged in sequence along the length direction of the shell, the first wheel and the second wheel are used for the bead chain to be wound around; the driving structure is connected to the first wheel, and the driving structure is used to drive the first wheel to move along the width direction of the shell.

[0007] As one embodiment, there are multiple second wheels, and along the length direction of the shell, the multiple second wheels are respectively arranged on both sides of the first wheel; along the width direction of the shell, the multiple second wheels are arranged on the same side of the first wheel.

[0008] As one of the embodiments, the length direction and the width direction define a first plane, the projection center of the first wheel on the first plane is the first center, the projection centers of the multiple second wheels on the first plane are the second centers, and along the length direction, the angle between the first center and the lines connecting the second centers on both sides of the first center is α, and when the first wheel moves along the width direction of the shell, 160°<α<250°.

[0009] As one implementation manner, the diameter of the first wheel is greater than the diameter of the second wheel.

[0010] As one embodiment, the outer side surface of the first wheel is recessed inward to form a first limiting groove, and / or the outer side surface of the second wheel is recessed inward to form a second limiting groove; the first limiting groove and the second limiting groove are used to limit the bead chain.

[0011] As one embodiment, the first wheel includes a first limiting portion and a first roller portion, the first roller portion is connected to the outer shell, the first limiting portion is connected to the top of the first roller portion, and the projection of the first limiting portion on the first plane covers the projection of the first roller portion on the first plane; and / or, the second wheel includes a second limiting portion and a second roller portion, the second limiting portion is connected to the outer shell, the second limiting portion is connected to the top of the second roller portion, and the projection of the second limiting portion on the first plane covers the projection of the second roller portion on the first plane.

[0012] As one embodiment, the tensioning structure includes a first fixed column and a second fixed column, the first fixed column is movably connected to the outer shell and connected to the driving structure, the second fixed column is connected to the outer shell, the first wheel is sleeved on the first fixed column, the second wheel is sleeved on the second fixed column, the first wheel and the first fixed column are rotatably matched, and the second wheel and the second fixed column are rotatably matched.

[0013] As one embodiment, the tensioning structure includes a first fixing member and a second fixing member, the first fixing member is connected to the first fixing column and is located at the top of the first wheel, and the first fixing member is used to axially limit the first wheel; the second fixing member is connected to the second fixing column and is located at the top of the second wheel, and the second fixing member is used to axially limit the second wheel.

[0014] As one embodiment, the shell includes a first shell and a second shell, the first shell and the second shell are detachably connected, the first wheel is movably connected to the second shell, the second wheel is connected to the second shell, and the first shell is used to connect to the wall; wherein the length of the first shell is greater than the length of the second shell, and / or the width of the first shell is greater than the width of the second shell.

[0015] As one embodiment, the driving structure includes a rotating member, which is rotatably connected to the shell. The shell has a movable groove along its width direction. The tensioning structure is slidably connected to the movable groove and is threadedly connected to the rotating member.

[0016] As one embodiment, the tensioning structure includes a first fixed column, and the first wheel is sleeved on the first fixed column; the first fixed column is threadedly connected to the rotating member and is slidably connected to the movable groove; wherein, when the rotating member rotates, the rotating member drives the first wheel to move along the width direction of the outer shell.

[0017] As one embodiment, the driving structure includes an operating member, one end of the rotating member extends out of the housing and is connected to the operating member, the other end of the rotating member is rotatably connected to the housing, and the operating member is used for holding.

[0018] As one embodiment, a plurality of anti-slip portions are provided on the outer side surface of the operating member along its circumference.

[0019] Another object of the utility model is to provide a curtain system, comprising a power component, a bead chain and an adjusting device in any one of the above embodiments, wherein the bead chain is connected to the power component, the bead chain is sequentially wound around the first wheel and the second wheel in the adjusting device, the power component is used to drive the bead chain to rotate, and the adjusting device is used to tighten the bead chain.

[0020] The beneficial effects of the utility model are as follows: the embodiment of the present application provides a curtain system and an adjusting device thereof, the adjusting device comprises a shell, a tensioning structure and a driving structure, the shell is used to be fixed to the wall; the tensioning structure comprises a first wheel and a second wheel, the first wheel is movably connected to the shell, the second wheel is connected to the shell, the first wheel and the second wheel are arranged in sequence along the length direction of the shell, and the first wheel and the second wheel are used for winding the bead chain; the driving structure is connected to the first wheel, and the driving structure is used to drive the first wheel to move along the width direction of the shell. Compared with the prior art, the adjusting device of the present application drives the first wheel to move through the driving structure to adjust the length of the bead chain wound around the first wheel and the second wheel, thereby playing the role of tensioning the bead chain and preventing the circumference of the bead chain from becoming longer and separating from the power wheel; when the curtain system using this adjusting device is in use, its power component and the adjusting device are independent of each other, and the installation and maintenance of the two do not interfere with each other, which simplifies the overall structure of the curtain system and facilitates assembly; at the same time, the adjusting device prevents the bead chain from separating from the power component, ensuring the normal opening and closing function of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of a curtain system according to an embodiment of the utility model is shown;

[0022] Figure 2 A schematic diagram showing the structure of an adjusting device according to an embodiment of the utility model is shown;

[0023] Figure 3 A top view of an adjusting device according to an embodiment of the utility model is shown;

[0024] Figure 4 A cross-sectional view of an adjusting device according to an embodiment of the utility model is shown;

[0025] Figure 5 An exploded view of parts of an adjusting device according to an embodiment of the utility model is shown;

[0026] Figure 6 Another structural schematic diagram of an adjusting device according to an embodiment of the utility model is shown.

[0027] Reference numerals:

[0028] 1. Adjusting device; 2. Bead chain; 3. Power component; 11. Shell; 12. Tensioning structure; 13. Driving structure; 31. Power wheel; 111. First shell; 112. Second shell; 113. Moving groove; 121. First wheel; 122. Second wheel; 123. First fixed column; 124. Second fixed column; 125. First fixing member; 126. Second fixing member; 127. Gasket; 131. Rotating member; 132. Operating member; 133. Limiting member; 1211. First limiting part; 1212. First roller part; 1213. First limiting groove; 1221. Second limiting part; 1222. Second roller part; 1223. Second limiting groove; 1321. Anti-slip part. DETAILED DESCRIPTION

[0029] In the present invention, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "radial", "circumferential", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] See also Figure 1 An embodiment of the present application provides a curtain system, including a power component 3, a bead chain 2 and an adjusting device 1. The bead chain 2 is passed around the adjusting device 1 and is connected to the power component 3. The power component 3 is used to drive the bead chain 2 to rotate, and the adjusting device 1 is used to tension the bead chain 2.

[0035] It should be noted that the curtain system also includes a rotating shaft and a curtain fabric arranged on the rotating shaft, and the power component 3 includes a power wheel 31 and a driving motor, and the output end of the driving motor is connected to the power wheel 31 .

[0036] In one embodiment, the power component 3 and the adjustment device 1 can both be fixed to the wall, one end of the bead chain 2 is sleeved on the power wheel 31 and meshed with the power wheel 31, and the other end is connected to the rotating shaft, the driving motor drives the power wheel 31 to rotate, the power wheel 31 drives the bead chain 2 to rotate, and the bead chain 2 then drives the rotating shaft to rotate, thereby realizing the opening and closing of the curtain; when the bead chain 2 is disengaged from the power wheel 31 due to long-term force, the tension of the bead chain 2 can be adjusted by the adjustment device 1, so that the bead chain 2 is meshed with the power wheel 31 again, so as to ensure that the curtain system meets the normal use function.

[0037] It can be understood that the bead chain 2 is usually an annular chain structure, with multiple beads or spheres connected in series on the chain; the power wheel 31 has multiple slots along its circumference, which are used to engage with the beads or spheres on the bead chain 2 to achieve the engagement between the bead chain 2 and the power wheel 31.

[0038] See also Figure 2The above-mentioned adjusting device 1 includes a shell 11, a tensioning structure 12 and a driving structure 13. The shell 11 is used to be fixed to the wall; the tensioning structure 12 includes a first wheel 121 and a second wheel 122. The first wheel 121 is movably connected to the shell 11, and the second wheel 122 is connected to the shell 11. The first wheel 121 and the second wheel 122 are arranged in sequence along the length direction of the shell 11, and the first wheel 121 and the second wheel 122 are used for winding the bead chain 2; the driving structure 13 is connected to the first wheel 121, and the driving structure 13 is used to drive the first wheel 121 to move along the width direction of the shell 11.

[0039] For the sake of clarity, Figure 2 The X direction indicates the length direction, and the Y direction indicates the width direction; in practical applications, the housing 11 is fixed to a wall, the first wheel 121 and the second wheel 122 are arranged on the side of the housing 11 away from the wall, the bead chain 2 is sequentially wound around the first wheel 121 and the second wheel 122, and meshes with the power wheel 31. Since the first wheel 121 can move along the width direction of the housing 11, the length of the bead chain 2 wound around the first wheel 121 and the second wheel 122 can be adjusted by moving the first wheel 121; when the bead chain 2 is subjected to force and the circumference becomes longer, The bead chain 2 naturally hangs down under its own weight, thereby disengaging from the power wheel 31. At this time, the first wheel 121 can be driven to move by the driving structure 13, and the first wheel 121 tightens the bead chain 2. Specifically, the first wheel 121 moves away from the second wheel 122, so that the length of the bead chain 2 wound around the first wheel 121 and the second wheel 122 becomes longer. In this way, the distance between the bead chain 2 and the power wheel 31 is shortened, and the bead chain 2 engages with the power wheel 31 again, so that the power wheel 31 can drive the bead chain 2 to rotate, thereby realizing the normal opening and closing function of the curtain system.

[0040] Compared with the prior art, the adjusting device 1 of the present application drives the first wheel 121 to move through the driving structure 13 to adjust the length of the bead chain 2 wrapped around the first wheel 121 and the second wheel 122, thereby playing the role of tensioning the bead chain 2 to prevent the circumference of the bead chain 2 from becoming longer and detaching from the power wheel 31; the curtain system using this adjusting device 1 has a simpler structure, the adjusting device 1 and the power component 3 are independent of each other, and the installation and maintenance of the two do not interfere with each other, which simplifies the overall structure of the curtain system and facilitates assembly; at the same time, the adjusting device 1 prevents the bead chain 2 from detaching from the power component 3, ensuring the normal opening and closing function of the curtain.

[0041] See again Figure 2 There are multiple second wheels 122, and along the length direction of the shell 11, the multiple second wheels 122 are respectively arranged on both sides of the first wheel 121; further, in the initial state, along the width direction of the shell 11, the multiple second wheels 122 are arranged on the same side of the first wheel 121.

[0042] In one embodiment, the number of second wheels 122 is set to be multiple, and the multiple second wheels 122 are respectively arranged on both sides of the first wheel 121 along the length direction, so that the first wheel 121 is located between the multiple second wheels 122, and the length of the bead chain 2 wrapped around the first wheel 121 and the second wheel 122 is longer, so that the length of the bead chain 2 that can be adjusted by the adjusting device 1 is larger; and when the driving structure 13 drives the first wheel 121 to move, the second wheels 122 located on both sides of the first wheel 121 are both wrapped with bead chains 2, and the movement of the first wheel 121 can adjust the length of the bead chains 2 on both sides thereof, so that the bead chain 2 can be tensioned faster, and the multiple second wheels 122 are located on the same side of the first wheel 121 along the width direction, which strengthens the tensioning force of the first wheel 121 on the bead chain 2, thereby shortening the time for the adjusting device 1 to tension the bead chain 2, and enhancing the convenience of use.

[0043] As a preferred embodiment, multiple second wheels 122 can be symmetrically arranged on both sides of the first wheel 121 along the length direction, and the multiple second wheels 122 are located on the same straight line along the length direction, so that the first wheel 121 has consistent tensioning force on the bead chain 2 on both sides, and the bead chain 2 is more evenly stressed.

[0044] See also Figure 3 , Figure 3 The X direction represents the length direction, and the Y direction represents the width direction; the length direction and the width direction define a first plane, the projection center of the first wheel 121 on the first plane is the first center, and the projection centers of the multiple second wheels 122 on the first plane are the second centers. Along the length direction, the angle between the first center and the second centers on both sides thereof is α. When the first wheel 121 moves along the width direction of the housing 11, 160°<α<250°.

[0045] It should be noted that in the initial state, that is, when the length of the bead chain 2 is not stretched, the bead chain 2 is in a meshing state with the power wheel 31, and the adjustment device 1 does not need to tension the bead chain 2. Based on this, on the first plane, the angle α between the first center and the second centers on both sides thereof is set between 160° and 250°. In this way, when the driving structure 13 drives the first wheel 121 to move, the first wheel 121 can move to a position where the angle α is close to 180°. At this position, the first wheel 121 and the second wheels 122 on both sides are approximately located on the same straight line. In this way, the bead chain 2 can be exactly connected with the first wheel 121 and the second wheel 122, and will not be tensioned by the first wheel 121 and the second wheel 122. At this time, the bead chain 2 is in a naturally hanging state, avoiding the adjustment device 1 from affecting the normal operation of the bead chain 2 in the initial state. And when it is necessary to tension the bead chain 2, the user can directly drive the first wheel 121 to move through the driving structure 13, thereby realizing the function of tensioning the bead chain 2, and the operation is more convenient.

[0046] It is understandable that, in some other embodiments, the angle α may also be set to a value within another range to achieve the above functions, and the present application does not limit this.

[0047] In one embodiment, the diameter of the first wheel 121 is greater than the diameter of the second wheel 122. The first wheel 121 with a larger diameter allows the bead chain 2 to be wrapped around the first wheel 121 for a longer length, thereby allowing the first wheel 121 to tighten the bead chain 2 faster when moving, thereby improving the tensioning efficiency of the adjusting device 1.

[0048] See also Figure 4 The outer side surface of the first wheel 121 can be recessed inward to form a first limiting groove 1213. When the bead chain 2 is wound around the first wheel 121, the bead chain 2 is located in the first limiting groove 1213. The first limiting groove 1213 limits the movement of the bead chain 2 and prevents the bead chain 2 from detaching from the first limiting groove 1213 during movement, thereby causing the bead chain 2 to detach from the first wheel 121.

[0049] Similarly, the outer side surface of the second wheel 122 may also be recessed inward to form a second limiting groove 1223. When the bead chain 2 is wound around the second wheel 122, the bead chain 2 is located in the second limiting groove 1223. The second limiting groove 1223 limits the bead chain 2, preventing the bead chain 2 from escaping from the second limiting groove 1223 during movement, thereby causing the bead chain 2 to escaping from the second wheel 122. The first limiting groove 1213 and the second limiting groove 1223 limit the bead chain 2, preventing the bead chain 2 from escaping from the first wheel 121 and the second wheel 122, and avoiding affecting the tensioning function of the adjustment device 1 on the bead chain 2.

[0050] See again Figure 4 The first wheel 121 includes a first limiting portion 1211 and a first roller portion 1212. The first roller portion 1212 is connected to the housing 11. The first limiting portion 1211 is connected to the top of the first roller portion 1212. The projection of the first limiting portion 1211 on the first plane covers the projection of the first roller portion 1212 on the first plane.

[0051] Specifically, a first limiting groove 1213 can be provided on the first roller portion 1212, the bead chain 2 is wound around the first roller portion 1212 and is located in the first limiting groove 1213, the cross-section of the first limiting portion 1211 is larger than the cross-section of the first roller portion 1212 and the first limiting portion 1211 is located at the top of the first roller portion 1212, so that the first limiting portion 1211 plays a limiting role on the bead chain 2, preventing the bead chain 2 from escaping from the top of the first wheel 121, and further limiting the separation of the bead chain 2 from the first wheel 121.

[0052] In one embodiment, the second wheel 122 may also include a second limiting portion 1221 and a second roller portion 1222, wherein the second limiting portion 1221 is connected to the housing 11, and the second limiting portion 1221 is connected to the top of the second roller portion 1222, and the projection of the second limiting portion 1221 on the first plane covers the projection of the second roller portion 1222 on the first plane. Specifically, a second limiting groove 1223 may be provided on the second roller portion 1222, and the bead chain 2 is wound around the second roller portion 1222 and is located in the second limiting groove 1223, the cross section of the second limiting portion 1221 is larger than the cross section of the second roller portion 1222, and the second limiting portion 1221 is located at the top of the second roller portion 1222, so that the second limiting portion 1221 limits the bead chain 2, preventing the bead chain 2 from escaping from the top of the second wheel 122, and further limiting the bead chain 2 from escaping from the second wheel 122.

[0053] See also Figure 4 and Figure 5 The tensioning structure 12 further includes a first fixed column 123 and a second fixed column 124. The first fixed column 123 is movably connected to the housing 11 and is connected to the driving structure 13. The second fixed column 124 is connected to the housing 11. The first wheel 121 is sleeved on the first fixed column 123. The second wheel 122 is sleeved on the second fixed column 124. The first wheel 121 and the first fixed column 123 are rotatably matched. The second wheel 122 and the second fixed column 124 are rotatably matched.

[0054] In one embodiment, the first fixed column 123 is movably connected to the shell 11, and the driving structure 13 drives the first fixed column 123 to move along the width direction of the shell 11. Since the first wheel 121 is mounted on the first fixed column 123, the first fixed column 123 drives the first wheel 121 to move along the width direction of the shell 11 to realize the function of tensioning the bead chain 2; the second fixed column 124 is fixedly connected to the shell 11, and the second wheel 122 is mounted on the second fixed column 124, and the connection between the second wheel 122 and the shell 11 is realized through the second fixed column 124; and the first wheel 121 and the first fixed column 123 are rotatably matched, and the second wheel 122 and the second fixed column 124 are rotatably matched, that is to say, the first wheel 121 and the second wheel 122 can both rotate relative to the shell 11, so that when the power component 3 is arranged to drive the bead chain 2 to rotate, the rotatable first wheel 121 and the second wheel 122 play a role in assisting the rotation of the bead chain 2, so that the bead chain 2 moves more smoothly.

[0055] See again Figure 4The tensioning structure 12 includes a first fixing member 125 and a second fixing member 126. The first fixing member 125 is connected to the first fixing column 123 and is located at the top of the first wheel 121. The first fixing member 125 is used to axially limit the first wheel 121; the second fixing member 126 is connected to the second fixing column 124 and is located at the top of the second wheel 122. The second fixing member 126 is used to axially limit the second wheel 122.

[0056] In order to prevent the first wheel 121 and the second wheel 122 from being separated from the housing 11, the present application provides a first fixing member 125 and a second fixing member 126. One end of the first fixing member 125 is inserted into the first fixing column 123 and connected to the first fixing column 123, and the other end extends out of the first fixing column 123 to abut against the first wheel 121. The first fixing member 125 limits the separation of the first wheel 121 from the first fixing column 123, thereby preventing the first wheel 121 from being separated from the housing 11. One end of the second fixing member 126 is inserted into the second fixing column 124 and connected to the second fixing column 124, and the other end extends out of the second fixing column 124 to abut against the second wheel 122. The second fixing member 126 limits the separation of the second wheel 122 from the second fixing column 124, thereby preventing the second wheel 122 from being separated from the housing 11. Through the limiting effect of the first fixing member 125 and the second fixing member 126, the first wheel 121 and the second wheel 122 can be effectively prevented from being separated from the housing 11, thereby enhancing the stability of the adjustment device 1 when used.

[0057] The first fixing member 125 and the second fixing member 126 may be screws or rivets.

[0058] It is understandable that since the diameter of the first wheel 121 is relatively large, a gasket 127 can be set between the first fixing member 125 and the first wheel 121. The first fixing member 125 limits the first wheel 121 from being separated from the first fixing column 123 through the gasket 127. This setting can use a smaller first fixing member 125 to save costs.

[0059] See again Figure 4 The driving structure 13 includes a rotating member 131, which is rotatably connected to the housing 11. The housing 11 has a moving groove 113 along its width direction. The tensioning structure 12 is slidably connected to the moving groove 113 and is threadedly connected to the rotating member 131.

[0060] In one embodiment, the driving structure 13 of the present application uses a rotating member 131 to drive the first wheel 121 to move. The first wheel 121 is driven to move relative to the housing 11 by rotating the rotating member 131. The rotating member 131 can be driven manually, so that the travel distance of the first wheel 121 can be accurately adjusted, thereby more accurately adjusting the tightness of the bead chain 2.

[0061] It is understandable that in some other embodiments, the driving structure 13 may also adopt other methods, such as an electric telescopic rod, which is not limited in the present application.

[0062] The driving structure 13 further includes a limiting member 133 . The limiting member 133 is disposed at an end of the rotating member 131 and is used to abut against an outer surface of the housing 11 to prevent the rotating member 131 from being separated from the housing 11 .

[0063] Specifically, the first fixed column 123 is slidably connected to the moving groove 113 and is threadedly connected to the rotating member 131. The first wheel 121 is sleeved on the first fixed column 123. When the rotating member 131 rotates, the rotating member 131 drives the first wheel 121 to move along the width direction of the housing 11. The first fixed column 123 is driven to slide along the moving groove 113 by rotating the rotating member 131, and then the first fixed column 123 drives the first wheel 121 to slide along the moving groove 113, thereby achieving the effect of tensioning the bead chain 2.

[0064] See also Figure 6 The driving structure 13 further includes an operating member 132. One end of the rotating member 131 extends out of the housing 11 and is connected to the operating member 132. The other end of the rotating member 131 is rotatably connected to the housing 11. The operating member 132 is used for holding. In practical applications, the cross-sectional area of ​​the operating member 132 is larger than the cross-sectional area of ​​the rotating member 131. The user holds the operating member 132 and drives the rotating member 131 to rotate by rotating the operating member 132. The operating member 132 provides a position that is convenient for the user to hold and apply force.

[0065] In one embodiment, the outer side surface of the operating member 132 is provided with a plurality of anti-slip portions 1321 along its circumference. The anti-slip portions 1321 play an anti-slip role, increase the friction force when the user rotates the operating member 132, prevent slipping, and facilitate the user to rotate the operating member 132, thereby driving the rotating member 131 to rotate.

[0066] See again Figure 6 The housing 11 includes a first shell 111 and a second shell 112, the first shell 111 and the second shell 112 are detachably connected, the first wheel 121 is movably connected to the second shell 112, the second wheel 122 is connected to the second shell 112, and the first shell 111 is used to connect to a wall; wherein the length of the first shell 111 is greater than the length of the second shell 112, and / or the width of the first shell 111 is greater than the width of the second shell 112.

[0067] In one embodiment, the first shell 111 is used to be fixedly connected to the wall, and the second shell 112 is used for connecting the first wheel 121 and the second wheel 122. On the first plane, the projection area of ​​the second shell 112 is set to be smaller than the projection area of ​​the first shell 111. On the one hand, it is beneficial to the installation of the first shell 111 and the wall. On the other hand, by reducing the size of the second shell 112, the overall design size of the outer shell 11 is reduced, thereby saving design costs.

[0068] It is understandable that the first shell 111 and the second shell 112 can be detachably connected by means of bolts or the like, which is convenient for maintenance and installation.

[0069] Different from the prior art, the embodiment of the present application provides a curtain system and an adjusting device 1 thereof, wherein the adjusting device 1 includes a shell 11, a tensioning structure 12 and a driving structure 13. The shell 11 is used to be fixed to the wall; the tensioning structure 12 includes a first wheel 121 and a second wheel 122, the first wheel 121 is movably connected to the shell 11, and the second wheel 122 is connected to the shell 11, the first wheel 121 and the second wheel 122 are arranged in sequence along the length direction of the shell 11, and the first wheel 121 and the second wheel 122 are used for winding the bead chain 2; the driving structure 13 is connected to the first wheel 121, and the driving structure 13 is used to drive the first wheel 121 to move along the width direction of the shell 11. Compared with the prior art, the adjusting device 1 of the present application drives the first wheel 121 to move through the driving structure 13 to adjust the length of the bead chain 2 wrapped around the first wheel 121 and the second wheel 122, thereby playing the role of tensioning the bead chain 2 to prevent the bead chain 2 from being separated from the power wheel 31; when the curtain system using this adjusting device 1 is in use, its power component 3 and the adjusting device 1 are independent of each other, and the installation and maintenance of the two do not interfere with each other, which simplifies the overall structure of the curtain system and facilitates assembly; at the same time, the adjusting device 1 prevents the bead chain 2 from being separated from the power component 3, ensuring the normal opening and closing function of the curtain.

[0070] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An adjusting device (1) for tensioning a bead chain (2), characterized in that: include: A housing (11) for fixing to a wall; The tensioning structure (12) comprises a first wheel (121) and a second wheel (122), wherein the first wheel (121) is movably connected to the housing (11), and the second wheel (122) is connected to the housing (11), and the first wheel (121) and the second wheel (122) are arranged in sequence along the length direction of the housing (11), and the first wheel (121) and the second wheel (122) are used for winding the bead chain (2); A driving structure (13) is connected to the first wheel (121), and the driving structure (13) is used to drive the first wheel (121) to move along the width direction of the housing (11).

2. The adjusting device (1) according to claim 1, characterized in that There are multiple second wheels (122), and along the length direction of the housing (11), the multiple second wheels (122) are respectively arranged on both sides of the first wheel (121); along the width direction of the housing (11), the multiple second wheels (122) are arranged on the same side of the first wheel (121).

3. The adjustment device (1) according to claim 2, characterized in that The length direction and the width direction define a first plane, the projection center of the first wheel (121) on the first plane is the first center, the projection centers of the plurality of second wheels (122) on the first plane are the second centers, along the length direction, the angle between the first center and the lines connecting the second centers on both sides thereof is α, and when the first wheel (121) moves along the width direction of the housing (11), 160°<α<250°.

4. The adjustment device (1) according to claim 1, characterized in that The diameter of the first wheel (121) is greater than the diameter of the second wheel (122).

5. The adjustment device (1) according to claim 1, characterized in that The outer side surface of the first wheel (121) is recessed inward to form a first limiting groove (1213), and / or the outer side surface of the second wheel (122) is recessed inward to form a second limiting groove (1223); the first limiting groove (1213) and the second limiting groove (1223) are used to limit the bead chain (2).

6. The adjustment device (1) according to claim 1, characterized in that The first wheel (121) comprises a first limiting portion (1211) and a first roller portion (1212); the first roller portion (1212) is connected to the housing (11); the first limiting portion (1211) is connected to the top of the first roller portion (1212); a projection of the first limiting portion (1211) on the first plane covers a projection of the first roller portion (1212) on the first plane; And / or, the second wheel (122) comprises a second limiting portion (1221) and a second roller portion (1222), the second limiting portion (1221) is connected to the housing (11), the second limiting portion (1221) is connected to the top of the second roller portion (1222), and the projection of the second limiting portion (1221) on the first plane covers the projection of the second roller portion (1222) on the first plane.

7. The adjustment device (1) according to claim 1, characterized in that The tensioning structure (12) comprises a first fixed column (123) and a second fixed column (124); the first fixed column (123) is movably connected to the housing (11) and connected to the driving structure (13); the second fixed column (124) is connected to the housing (11); the first wheel (121) is sleeved on the first fixed column (123); the second wheel (122) is sleeved on the second fixed column (124); the first wheel (121) and the first fixed column (123) are rotationally matched; the second wheel (122) and the second fixed column (124) are rotationally matched.

8. The adjustment device (1) according to claim 7, characterized in that The tensioning structure (12) comprises a first fixing member (125) and a second fixing member (126), wherein the first fixing member (125) is connected to the first fixing column (123) and is located on the top of the first wheel (121), and the first fixing member (125) is used to axially limit the first wheel (121); The second fixing member (126) is connected to the second fixing column (124) and is located on the top of the second wheel (122), and the second fixing member (126) is used to axially limit the second wheel (122).

9. The adjustment device (1) according to claim 1, characterized in that The housing (11) comprises a first shell (111) and a second shell (112); the first shell (111) and the second shell (112) are detachably connected; the first wheel (121) is movably connected to the second shell (112); the second wheel (122) is connected to the second shell (112); and the first shell (111) is used to be connected to the wall; Wherein, the length of the first shell (111) is greater than the length of the second shell (112), and / or the width of the first shell (111) is greater than the width of the second shell (112).

10. The adjustment device (1) according to claim 1, characterized in that The driving structure (13) comprises a rotating member (131), the rotating member (131) is rotatably connected to the housing (11), the housing (11) is provided with a movable groove (113) along its width direction, and the tensioning structure (12) is slidably connected to the movable groove (113) and is threadedly connected to the rotating member (131).

11. The adjustment device (1) according to claim 10, characterized in that The tensioning structure (12) comprises a first fixed column (123), and the first wheel (121) is sleeved on the first fixed column (123); the first fixed column (123) is threadedly connected to the rotating member (131) and is slidably connected to the movable groove (113); wherein, when the rotating member (131) rotates, the rotating member (131) drives the first wheel (121) to move along the width direction of the housing (11).

12. The adjustment device (1) according to claim 10, characterized in that The driving structure (13) comprises an operating member (132), one end of the rotating member (131) protrudes from the housing (11) and is connected to the operating member (132), the other end of the rotating member (131) is rotatably connected to the housing (11), and the operating member (132) is used for holding.

13. The adjustment device (1) according to claim 12, characterized in that The outer side surface of the operating member (132) is provided with a plurality of anti-slip portions (1321) along its circumference.

14. A curtain system, characterized in that: It comprises a power component (3), a bead chain (2) and the adjusting device (1) as described in any one of claims 1 to 13, wherein the bead chain (2) is connected to the power component (3), the bead chain (2) is sequentially wound around the first wheel (121) and the second wheel (122) in the adjusting device (1), the power component (3) is used to drive the bead chain (2) to rotate, and the adjusting device (1) is used to tighten the bead chain (2).

Images