Mounting device of bead chain-operated roller blind

Abstract

A mounting device of a bead chain-operated roller blind, comprising: a top beam (1) provided with a first end (1.1) and a second end (1.2) which are opposite to each other; a roller (2) located below the top beam (1) and provided with a third end (2.1) and a fourth end (2.2) which respectively correspond to the first end (1.1) and the second end (1.2); a transmission portion (3) connected to the second end (1.2) and the fourth end (2.2); a connecting portion (4) connected to the first end (1.1) and the third end (2.1); and a bead chain module (5) which is arranged in the top beam (1) and drives the roller (2) by means of the transmission portion (3). According to the mounting device of a bead chain-operated roller blind, the bead chain module (5) and the roller tube (2) are vertically separated, and the transmission portion (3) drives the roller (2) to rotate, so that both ends of the roller (2) are respectively in contact with the connecting portion (4) and the transmission portion (3), resulting in uniform and small gaps between two sides of a blind body mounted on the roller (2) and corresponding two sides of a window frame, thereby preventing light leakage at edges.

Description

Mounting device for pull bead curtain TECHNICAL FIELD

[0001] The present application relates to the field of curtain technology, and particularly relates to a mounting device for a pull bead curtain. BACKGROUND

[0002] A conventional pull bead curtain generally comprises a mounting beam, a winding rod, a connecting piece connected to one end of the mounting beam and the winding rod, and a pull bead head connected to the other end of the mounting beam and the winding rod, and a curtain body is wound on the winding rod, and the curtain body is retracted or extended by rotating the winding rod through pulling the pull bead. Since the pull bead head is provided with components such as a pull bead, the number of parts is large, and the structure occupies a certain installation space, resulting in a gap between the end of the winding rod connected to the pull bead head and the end of the pull bead head, so that the gap between the edge of the curtain body and the edge of the window frame is large, the light-shielding effect is poor, and the edge light leakage is serious.

[0003] SUMMARY

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present application is to provide a mounting device for a pull bead curtain, which can reduce the gap between the edge of the curtain body and the edge of the window frame, has a better light-shielding effect, and can better prevent edge light leakage.

[0005] The technical scheme adopted by the present application to solve the above-mentioned technical problem is: a mounting device for a pull bead curtain, comprising: a top beam provided with opposite first and second ends; a winding drum located below the top beam and provided with third and fourth ends corresponding to the first and second ends respectively; a transmission part connecting the second end and the fourth end; a connecting part connecting the first end and the third end; and a pull bead module arranged in the top beam and driving the winding drum through the transmission part.

[0006] Further, the pull bead module comprises a shell, a pull bead, and a bead disc rotatably arranged in the shell, the pull bead is arranged around the bead disc, the shell side wall is provided with an opening for the pull bead to pass out, the bead disc is provided with a transmission shaft, and the transmission shaft extends out of the shell and is in transmission connection with the transmission part.

[0007] Further, the third end of the winding drum is connected with a first rotating wheel, the fourth end of the winding drum is connected with a second rotating wheel, the first rotating wheel is connected with the connecting part, and the second rotating wheel is connected with the transmission part.

[0008] Further, the transmission part comprises at least two gears in meshing transmission with each other, which are a first gear and a second gear, the first gear is connected with the transmission shaft, and the second gear is connected with the second rotating wheel.

[0009] Further, the transmission part further comprises a third gear meshed between the first gear and the second gear.

[0010] Further, the transmission part comprises a first transmission wheel connected to the transmission shaft, a second transmission wheel connected to the second rotating wheel, and a transmission belt sleeved between the first transmission wheel and the second transmission wheel.

[0011] Further, the pulling bead module is further connected with a power assisting module, the power assisting module is arranged in the roof beam, the power assisting module is provided with a power output shaft, the bead disc of the pulling bead module is provided with a transmission hole matched with the power output shaft, the transmission hole is located on the opposite side of the transmission shaft and is coaxially arranged with the transmission shaft, and the shell is provided with a through hole corresponding to the transmission hole.

[0012] Further, the power assisting module is a coil spring assembly, the coil spring assembly comprises a shell, a coil spring and a power output shaft, one part of the power output shaft is located in the shell, another part of the power output shaft is located outside the shell and is in transmission connection with the transmission hole on the bead disc, the power output shaft can rotate relative to the shell, and the coil spring is located in the shell and is wound on the power output shaft.

[0013] Further, the power assisting module is an electric motor, and a power output shaft of the electric motor is in transmission connection with the transmission hole on the bead disc.

[0014] Compared with the prior art, the advantages of the present application are that: the pulling bead module is arranged in the roof beam, the pulling bead module is arranged above and below the winding drum, the winding drum is driven to rotate through the transmission part, the two ends of the winding drum can be in contact with the connecting part and the transmission part respectively without any gap, so that the gap between the two sides of the curtain body installed on the winding drum and the corresponding window frame is uniform and small, light leakage is prevented, and the shading effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained without creative labor on the basis of the provided drawings.

[0016] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0017] Fig. 1 is a structural schematic view of the present application;

[0018] Figure 2 is a schematic diagram of the structure of the split reel of the present application;

[0019] Figure 3 is a schematic diagram of the structure of the pull bead module of the present application;

[0020] Figure 4 is a schematic diagram of the structure of the pull bead module of the present application from another perspective;

[0021] Figure 5 is an exploded schematic diagram of the pull bead module of the present application;

[0022] Figure 6 is a schematic diagram of the internal structure of the transmission part of the present application;

[0023] Figure 7 is a schematic diagram of the transmission structure of the present application connected with a power assisting module;

[0024] Figure 8 is a sectional view of the transmission structure of the present application connected with a power assisting module;

[0025] Figure 9 is a schematic diagram of the structure of the power assisting module in Figure 7;

[0026] Figure 10 is an exploded schematic diagram of Figure 9;

[0027] Figure 11 is a schematic diagram of the transmission structure of the present application connected with another power assisting module;

[0028] Figure 12 is a sectional view of the transmission structure of the present application connected with another power assisting module;

[0029] Figure 13 is a schematic diagram of the structure of the power assisting module in Figure 11;

[0030] Figure 14 is a schematic diagram of the internal structure of another transmission part of the present application;

[0031] As shown in the figure, 1 roof beam, 1.1 first end, 1.2 second end, 2 reel, 2.1 third end, 2.2 fourth end, 3 transmission part, 3.1 first gear, 3.2 second gear, 3.3 third gear, 3.4 first transmission wheel, 3.5 second transmission wheel, 3.6 transmission belt, 4 connecting part, 5 pull bead module, 5.1 housing, 5.1.1 opening, 5.1.2 through hole, 5.2 pull bead, 5.3 bead disc, 5.3.1 transmission shaft, 5.3.2 transmission hole, 6 first rotating wheel, 7 second rotating wheel, 8 reel spring assembly, 8.1 housing, 8.2 reel spring, 8.3 power output shaft, 9 motor, 9.1 power output shaft. DETAILED DESCRIPTION

[0032] The present application is further described below in conjunction with specific embodiments.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is merely for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0037] As shown in Figures 1 and 2, the present invention provides an installation device for a bead curtain, comprising: a top beam 1, provided with a first end 1.1 and a second end 1.2 opposite to each other; a roller 2, located below the top beam 1, provided with a third end 2.1 and a fourth end 2.2 corresponding to the first end 1.1 and the second end 1.2, respectively; a transmission part 3, connecting the second end 1.2 and the fourth end 2.2; a connecting part 4, connecting the first end 1.1 and the third end 2.1; a bead module 5, provided in the top beam 1, and transmitting the roller 2 through the transmission part 3, the bead module 5 and the roller The drum 2 is not arranged on the same axis, but adopts a structure setting that is separated from the upper and lower parts, and the rotation of the drum 2 is driven by the transmission part 3 on the side. This structure setting separates the bead module 5 from the drum 2, and the driving force of the bead module 5 is transmitted to the drum 2 through the transmission part 3 on the side, which can not only realize power transmission, but also does not occupy the end installation space of the drum 2, so that the two ends of the drum 2 can contact the connecting part 4 and the transmission part 3 respectively without any gap, so that the gap between the two sides of the curtain body installed on the drum 2 and the corresponding window frame is uniform and small, preventing light leakage from the edge and achieving better shading effect.

[0038] Referring to Figures 3, 4, and 5, the bead module 5 comprises a housing 5.1, a bead 5.2, and a bead plate 5.3. The bead plate 5.3 is rotatably mounted within the housing 5.1, and the bead 5.2 is wound around the bead plate 5.3. An opening 5.1.1 is provided on the sidewall of the housing 5.1 for the bead 5.2 to pass through. The bead plate 5.3 is provided with a transmission shaft 5.3.1, which extends out of the housing 5.1 and is in transmission connection with the transmission unit 3. Pulling the bead 5.2 drives the bead plate 5.3 to rotate, and the bead plate 5.3 is driven by the transmission shaft 5.3. 1 transmits power to the transmission part 3, and the transmission part 3 transmits power to the reel 2, thereby driving the reel 2 to rotate, realizing parallel power transmission up and down, and the bead module 5 does not occupy the installation space at the end of the reel 2, so that the two ends of the reel 2 can contact the connecting part 4 and the transmission part 3 respectively without any gap, so that the curtain body installed on the reel 2 can better block light and prevent light leakage from the edge. In addition, the shape of the outer shell 5.1 fits with the inner wall of the top beam 1, which is convenient for installation and positioning. A window for the bead 5.2 to pass through is provided at the corresponding position on the top beam 1.

[0039] The third end 2.1 of the winding drum 2 is connected with the first rotating wheel 6, the fourth end 2.2 of the winding drum 2 is connected with the second rotating wheel 7, the first rotating wheel 6 is connected with the connecting part 4, the second rotating wheel 7 is connected with the transmission part 3, the second rotating wheel 7 is driven to rotate by the power transmitted by the transmission part 3, the first rotating wheel 6 is driven, since the curtain is selected with the winding drum 2 with different thickness according to the size, the first rotating wheel 6 and the second rotating wheel 7 are arranged to be convenient to replace to adapt to the winding drum 2 with different thickness, which is more convenient and low in cost than replacing the connecting part 4 and the transmission part 3, and is more flexible in use and assembly.

[0040] The transmission part 3 comprises at least two gears which are meshed with each other, namely the first gear 3.1 and the second gear 3.2, the first gear 3.1 is connected with the transmission shaft 5.3.1, the second gear 3.2 is connected with the second rotating wheel 7, the bead disc 5.3 is driven to rotate by the pull bead 5.2, the transmission shaft 5.3.1 on the bead disc 5.3 drives the first gear 3.1 to rotate coaxially, the first gear 3.1 meshes with the second gear 3.2 to drive the second gear 3.2 to rotate coaxially, the second gear 3.2 drives the second rotating wheel 7 to rotate coaxially, the second rotating wheel 7 drives the winding drum 2 to rotate, so that the driving force is transmitted from the axial direction to the radial direction and then to the axial direction, the pull bead module 5 can drive the winding drum 2 to rotate, and the pull bead module 5 and the winding drum 2 can be installed separately, the installation space of the end of the winding drum 2 is not occupied to affect shading, the transmission part 3 further comprises the third gear 3.3 which is meshed between the first gear 3.1 and the second gear 3.2, in the case that the axial distance between the first gear 3.1 and the second gear 3.2 is too large, the third gear 3.3 can be used to transmit the power.

[0041] The transmission part 3 comprises the first transmission wheel 3.4, the second transmission wheel 3.5 and the transmission belt 3.6 which is sleeved between the first transmission wheel 3.4 and the second transmission wheel 3.5, the first transmission wheel 3.4 is connected with the transmission shaft 5.3.1, the second transmission wheel 3.5 is connected with the second rotating wheel 7, the bead disc 5.3 is driven to rotate by the pull bead 5.2, the transmission shaft 5.3.1 on the bead disc 5.3 drives the first transmission wheel 3.4 to rotate coaxially, the first transmission wheel 3.4 drives the second transmission wheel 3.5 to rotate through the transmission belt 3.6, the second transmission wheel 3.5 drives the second rotating wheel 7 to rotate coaxially, the second rotating wheel 7 drives the winding drum 2 to rotate, so that the driving force is transmitted from the axial direction to the radial direction and then to the axial direction, the pull bead module 5 can drive the winding drum 2 to rotate, and the pull bead module 5 and the winding drum 2 can be installed separately, the installation space of the end of the winding drum 2 is not occupied to affect shading.

[0042] The pulling bead module 5 is further connected with a power assisting module, which is arranged in the top beam 1. The power assisting module is provided with a power output shaft. The bead disc 5.3 of the pulling bead module 5 is provided with a transmission hole 5.3.2 matched with the power output shaft. The transmission hole 5.3.2 is located at the opposite side of the transmission shaft 5.3.1 and coaxially arranged with the transmission shaft 5.3.1. The shell 5.1 is provided with a through hole 5.1.2 matched with the transmission hole 5.3.2. The power assisting module can provide power assisting function, so that the user can pull the pulling bead 5.2 more easily and the use is better.

[0043] As a preferred embodiment, the power assisting module is a coil spring assembly 8. The coil spring assembly 8 comprises a shell 8.1, a coil spring 8.2 and a power output shaft 8.3. The power output shaft 8.3 is partially arranged in the shell 8.1 and partially arranged outside the shell 8.1 and connected with the transmission hole 5.3.2 of the bead disc 5.3. The power output shaft 8.3 can rotate relative to the shell 8.1. The coil spring 8.2 is arranged in the shell 8.1 and wound on the power output shaft 8.3. When the pulling bead 5.2 drives the winding drum 2 to release the curtain, the gravity direction of the curtain is the same as the unfolding direction of the curtain, so that the coil spring 8.2 can provide power assisting function. The user can easily release the curtain. During the process of releasing the curtain, the pulling bead 5.2 drives the bead disc 5.3 to rotate. The bead disc 5.3 drives the coil spring 8.2 to accumulate the winding force through the transmission hole 5.3.2 and the power output shaft 8.3. When the user needs to wind the curtain, the pulling bead 5.2 drives the bead disc 5.3 to rotate reversely. At this time, the gravity direction of the curtain is opposite to the winding direction of the curtain, so that the user needs to pull the pulling bead 5.2 more hardly. The coil spring 8.2 can drive the bead disc 5.3 to rotate through the power output shaft 8.3 and the transmission hole 5.3.2, so that the user can easily wind the curtain.

[0044] As another preferred embodiment, the power assisting module is an electric motor 9. The power output shaft 9.1 of the electric motor 9 is connected with the transmission hole 5.3.2 of the bead disc 5.3. The electric motor 9 can drive the bead disc 5.3 to rotate, so that the winding drum 2 can release or wind the curtain. The user can easily control the electric motor 9. The user can drive the winding drum 2 to release or wind the curtain through the pulling bead 5.2 when the electric motor 9 is not powered. The user can use the electric motor 9 more flexibly.

[0045] The application sets the pull bead module 5 in the top beam 1, sets the pull bead module 5 and the winding drum 2 apart upwards and downwards, and drives the winding drum 2 to rotate through the transmission part 3, so that the two ends of the winding drum 2 can contact the connecting part 4 and the transmission part 3 respectively without any gap, thereby making the gap between the two sides of the curtain body installed on the winding drum 2 and the two sides of the corresponding window frame uniform and small, preventing light leakage at the edge, and making the shading effect better. Secondly, the application adds a booster module, i.e. a winding spring assembly 8 or a motor 9, in the top beam 1, the booster pull bead module 5 drives the winding drum 2 to rotate, and the use is more labor-saving. In addition, the application adopts a modular structure, the assembly is more flexible, the consumers have more choices, and it is also very convenient for the consumers to assemble by themselves according to specific needs.

[0046] The materials, reagents and experimental equipment involved in the embodiments of the application are all commercially available products in the field of window curtains unless otherwise specified.

[0047] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A device for installing a bead curtain, characterized in that: include: A top beam (1) having a first end (1.1) and a second end (1.2) opposite to each other; A reel (2) is located below the top beam (1) and is provided with a third end (2.1) and a fourth end (2.2) corresponding to the first end (1.1) and the second end (1.2), respectively; a transmission part (3), connecting the second end (1.2) and the fourth end (2.2); a connecting portion (4) connecting the first end (1.1) and the third end (2.1); The bead pulling module (5) is arranged in the top beam (1) and drives the reel (2) through the transmission part (3).

2. The installation device for bead curtains according to claim 1, characterized in that: The bead pulling module (5) comprises a housing (5.1), a bead pulling bead (5.2) and a bead plate (5.3). The bead plate (5.3) is rotatably arranged in the housing (5.1). The bead pulling bead (5.2) is wound around the bead plate (5.3). An opening (5.3) for the bead pulling bead (5.2) to pass through is provided on the side wall of the housing (5.1). 5.1.1), a transmission shaft (5.3.1) is provided on the bead plate (5.3), and the transmission shaft (5.3.1) extends out of the housing (5.1) and is in transmission connection with the transmission part (3).

3. The installation device for bead curtains according to claim 2, characterized in that: The third end (2.1) of the reel (2) is connected to a first rotating wheel (6), the fourth end (2.2) of the reel (2) is connected to a second rotating wheel (7), the first rotating wheel (6) is connected to the connecting portion (4), and the second rotating wheel (7) is connected to the transmission portion (3).

4. The installation device for bead curtains according to claim 3, characterized in that: The transmission part (3) comprises at least two mutually meshing gears, namely a first gear (3.1) and a second gear (3.2); the first gear (3.1) is connected to the transmission shaft (5.3.1), and the second gear (3.2) is connected to the second rotating wheel (7).

5. The installation device for bead curtains according to claim 4, characterized in that: The transmission part (3) further comprises a third gear (3.3), which is engaged between the first gear (3.1) and the second gear (3.2).

6. The installation device for bead curtains according to claim 3, characterized in that: The transmission part (3) comprises a first transmission wheel (3.4), a second transmission wheel (3.5), and a transmission belt (3.6) sleeved between the first transmission wheel (3.4) and the second transmission wheel (3.5); the first transmission wheel (3.4) is connected to the transmission shaft (5.3.1); and the second transmission wheel (3.5) is connected to the second rotating wheel (7).

7. The installation device for bead curtains according to claim 2, characterized in that: The bead pulling module (5) is further connected to a power assist module, which is arranged in the top beam (1). A power output shaft (8.3, 9.1) is provided on the power assist module. A transmission hole (5.3.2) matching the power output shaft (8.3, 9.1) is provided on the bead plate (5.3) of the bead pulling module (5). The transmission hole (5.3.2) is located on the opposite side of the transmission shaft (5.3.1) and is coaxially arranged with the transmission shaft (5.3.1). A through hole (5.1.2) corresponding to the transmission hole (5.3.2) is provided on the housing (5.1).

8. The installation device for bead curtains according to claim 7, characterized in that: The power assist module is a coil spring assembly (8), which comprises a housing (8.1), a coil spring (8.2) and a power output shaft (8.3). A portion of the power output shaft (8.3) is located inside the housing (8.1), and another portion of the power output shaft (8.3) is located outside the housing (8.1) and is transmission-connected to a transmission hole (5.3.2) on the bead plate (5.3). The power output shaft (8.3) is rotatable relative to the housing (8.1). The coil spring (8.2) is located inside the housing (8.1) and is wound around the power output shaft (8.3).

9. The installation device for bead curtains according to claim 7, characterized in that: The power assist module is a motor (9), and a power output shaft (9.1) of the motor (9) is in transmission connection with a transmission hole (5.3.2) on the bead plate (5.3).

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