Dual-power venetian blind

Abstract

The utility model provides a dual-power venetian blind which comprises an upper beam with a containing cavity, and a first driving mechanism, a first transmission mechanism driven by the first driving mechanism, a second driving mechanism and a second transmission mechanism driven by the second driving mechanism are arranged in the containing cavity. The at least two blades are fixedly hung below the upper beam through the ladder rope; the ladder rope is used for fixing blades, the upper end of the ladder rope is fixed to the dimming assembly, and the dimming assembly is connected with the first transmission mechanism; one end of the lifting rope is fixed to the rope winding assembly, the other end of the lifting rope is fixed to the blade farthest away from the upper beam, the rope winding assembly is connected with the second transmission mechanism, and the lifting rope sequentially penetrates through the through holes formed in the blades. The blades are driven by the second driving mechanism to be retracted, mutual interference between rotation and retraction of the blades is avoided, dependence of rotation of the blades on friction force between the rope winder and the ladder rope is eliminated, and the use effect and the decoration effect of the shutter blind can be further expanded.

Description

Technical Field

[0001] This utility model relates to a shielding curtain for buildings or vehicles, specifically a dual-power venetian blind. Background Technology

[0002] Blackout blinds, such as Roman blinds, honeycomb blinds, and Venetian blinds, typically include a top beam, curtain rod, blackout fabric, and bottom beam. If they are motorized, they also include a drive mechanism and transmission mechanism. Blackout blinds are primarily used to block light from buildings or vehicles, and also serve to regulate the temperature inside. Common Venetian blinds use lifting and ladder ropes on a rope roller to control the raising and rotating angle of the blind slats, thereby changing the light-blocking area. The ladder rope usually utilizes the friction between itself and the rope roller to adjust the slat rotation angle. This means that the ladder rope's control of the slats depends entirely on the friction between the ladder rope and the rope roller, which is not conducive to the diverse use of slat materials. Furthermore, traditional Venetian blinds share a single power source for the ladder and lifting ropes, requiring the blind slats to be switched to the blackout position before raising or lowering, resulting in severe wear, high resistance, and significant noise during operation. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a dual-power venetian blind. The lifting and lowering of the venetian blind and the adjustment of its blade angle are controlled by their respective power mechanisms and transmission mechanisms, so that the adjustment of the ladder rope is not limited by the magnitude of its friction force, and the resistance during the lifting and lowering process is small, reducing wear.

[0004] This utility model provides a dual-power venetian blind, comprising:

[0005] The upper beam has a receiving cavity, in which a first driving mechanism and its first transmission mechanism are provided, and a second driving mechanism and its second transmission mechanism are provided.

[0006] The blades, at least two, are suspended below the upper beam by ladder ropes;

[0007] The ladder rope is used to fix the blades, and its upper end is fixed to the dimming assembly. The dimming assembly is connected to the first transmission mechanism.

[0008] The lifting rope is fixed at one end to the rope winding assembly and at the other end to the blade furthest from the upper beam. The rope winding assembly is connected to the second transmission mechanism. The lifting rope passes through the through holes provided on each blade in sequence.

[0009] With the above structure, the rotation of the blades is achieved by the dimming assembly and ladder rope driven by the first drive mechanism and the first transmission mechanism. The raising and lowering of the blades is achieved by the lifting rope and the winding rope assembly driven by the second drive mechanism and the second transmission mechanism. This avoids mutual interference between the rotation and raising / lowering of the blades, eliminates the dependence of the blade rotation on the friction between the winding rope and the ladder rope, and the independent blade rotation power system has almost no restrictions on the blade material. Heavier and larger blades can be used, which can further expand the use effect and decorative effect of the Venetian blinds. Moreover, dimming and raising / lowering are driven by dual power sources. When raising or lowering, the dimming assembly can drive the ladder rope to rotate the blades to a horizontal state first, thereby reducing the frictional resistance between blades and between blades and the lifting rope during the raising and lowering process, reducing wear, and thus extending the service life.

[0010] Furthermore, the first drive mechanism and the second drive mechanism are housed within a housing to form a drive assembly; the drive assembly is located at one end of the upper beam or in the middle of the upper beam.

[0011] Furthermore, the first transmission mechanism includes a first transmission rod, a first drive mechanism is connected to the first transmission rod, the power of the first drive mechanism drives the first transmission rod to rotate, and a dimming component is provided on the first transmission rod.

[0012] Furthermore, the first transmission mechanism includes a first driving wheel, a first driven wheel, and a first transmission rod. A first drive mechanism is connected to the first driving wheel, and the power of the first drive mechanism drives the first driving wheel. The first driving wheel meshes with the first driven wheel, the first driven wheel is connected to the first transmission rod, and the first transmission rod is connected to the dimming assembly.

[0013] Furthermore, the second transmission mechanism includes a second transmission rod, a second drive mechanism connected to the second transmission rod, the power of the second drive mechanism drives the second transmission rod to rotate, the second transmission rod is connected to the rope winding assembly, the rope winding assembly rotates to retract or release the lifting rope, thereby achieving the purpose of retracting or opening the blade.

[0014] Alternatively, and further still, the second transmission mechanism includes a second driving wheel, a second driven wheel, and a second transmission rod. The second drive mechanism is connected to the second driving wheel, and the power of the second drive mechanism drives the second driving wheel to rotate. The second driving wheel meshes with the second driven wheel, the second driven wheel is connected to the second transmission rod, and the second transmission rod is connected to the rope winding assembly. The rope winding assembly rotates to retract or release the lifting rope, thereby achieving the purpose of retracting or closing the blades.

[0015] Furthermore, the upper beam cavity also includes a bracket for mounting the dimming assembly and the rope winding assembly.

[0016] Preferably, a first rope hole corresponding to the through hole on the blade is provided on the central axis of the bottom surface of the support, and a second rope hole is provided on the bottom surface of the upper beam.

[0017] Furthermore, a set of rope winding assemblies includes at least two rope winders arranged along the length of the blade; a set of dimming assemblies includes at least two dimming wheels arranged along the length of the blade. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the dual-power venetian blind of this utility model.

[0019] Figure 2 This is a schematic diagram of the second structure of the dual-power venetian blind of this utility model.

[0020] Figure 3 This is a structural diagram showing the drive assembly located at one end of the upper beam.

[0021] Figure 4 This is a structural diagram showing the drive assembly located in the middle of the upper beam.

[0022] Figure 5 This is a schematic diagram of a transmission mechanism.

[0023] Figure 6 This is a schematic diagram of another structure of the transmission mechanism.

[0024] Figure 7 This is a schematic diagram of the assembly structure of the rope reel and the support.

[0025] In the figure, 1-upper beam, 2-drive group, 3-blade, 4-ladder rope, 5-lifting rope, 6-scanning wheel, 8-rope winder, 9-bracket, 21-housing, 22-first drive mechanism, 23-second drive mechanism, 41-connecting cable, 71-first transmission rod, 72-second transmission rod, 74-first driving wheel, 75-first driven wheel, 76-second driving wheel, 77-second driven wheel, 91-first rope hole. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] This invention provides a dual-powered Venetian blind for use in areas to be shaded, such as doors and windows, on buildings or vehicles. The dual-powered Venetian blind includes an upper beam 1 installed above the area to be shaded, and several slats 3 for shading. The upper beam 1 is hollow, forming a receiving cavity. A drive assembly 2 and a transmission mechanism are installed within the receiving cavity. The drive assembly 2 includes a first drive mechanism 22 that provides power for adjusting the angle of the slats 3, and a second drive mechanism 23 that provides power for extending and retracting the slats 3. Preferably, the drive assembly 2 is disposed within the same housing 21, resulting in better overall integrity and easier installation of the Venetian blind. The drive assembly 2 can be located at one end of the upper beam 1 or in the middle of the upper beam 1, for example... Figures 1 to 4 As shown. When the drive group 2 is located at the end of the upper beam 1, the drive mechanism used can be a drive component with a power output shaft at only one end, such as a single-output motor. When the drive group 2 is located in the middle of the upper beam 1, the drive mechanism used can be a single-output motor as described above, or a drive component with power output shafts at both ends, such as a dual-output motor.

[0032] The first drive mechanism 22 outputs power to the first transmission mechanism, thereby driving the dimming component to rotate. Since one end of the ladder rope 4 is fixed to the dimming component, the rotation of the dimming component will cause the ladder rope 4 to deflect. Figures 5 to 6 As shown, the ladder rope 4 has several connecting cables 41, which are correspondingly sleeved on several blades 3. Therefore, when the ladder rope 4 deflects, the connecting cables 41 tilt, which will cause the angle of the blades 3 to change, thus achieving the purpose of adjusting the degree of light blocking without lifting the venetian blind.

[0033] There are at least two blades 3. Generally speaking, there are more than eight blades 3 to form a close arrangement of blades 3. As mentioned above, the blades 3 are fixed and suspended below the upper beam 1 by ladder ropes 4. The number of connecting cables 41 of ladder ropes 4 matches the number of blades 3. The blades 3 are arranged in sequence and sleeved in the connecting cables 41 and fixed to ladder ropes 4.

[0034] The second drive mechanism 23 outputs power to the second transmission mechanism, which drives the rope winding assembly to rotate. One end of the lifting rope 5 is fixed to the rope winding assembly, and the other end is fixed to the blade 3 furthest from the upper beam 1. Therefore, when the rope winding assembly rotates, the lifting rope 5 is either retracted or released, and the blades 3 of the Venetian blind are lifted or lowered in sequence to directly change the shading area of ​​the Venetian blind.

[0035] In traditional Venetian blinds, the dimming and slat lifting functions are combined into a complex mechanism driven by a single motor. This requires a high-power motor, resulting in high noise, high torque, and severe wear during operation. Furthermore, if batteries are used to provide power, larger capacity batteries are required, increasing costs. In this invention, the rotation of the blades 3 is achieved by the dimming assembly and the ladder rope 4 driven by the first drive mechanism 22 and the first transmission mechanism. The raising and lowering of the blades 3 is achieved by the lifting rope 5 and the winding assembly driven by the second drive mechanism 23 and the second transmission mechanism. This avoids mutual interference between the rotation and raising / lowering of the blades 3, eliminates the dependence of the rotation of the blades 3 on the friction between the winding assembly 8 and the ladder rope 4, and the independent blade rotation power system has almost no restrictions on the material of the blades 3. Heavier and larger blades 3 can be used, which further expands the use and decorative effects of the blinds. The installation is simple and less prone to errors. Moreover, the dimming and raising / lowering are driven by dual power sources. When raising or lowering, the dimming assembly can drive the ladder rope 4 to rotate the blades 3 to a horizontal state first, thereby reducing the frictional resistance between the blades 3 and between the blades 3 and the lifting rope 5 during the raising and lowering process, reducing wear, and thus extending the service life.

[0036] As an improved embodiment, refer to the appendix. Figure 5The first transmission mechanism includes a first transmission rod 71, which is connected to the power output shaft of the first drive mechanism 22. The power of the first drive mechanism 22 is transmitted to the first transmission rod 71 through the power output shaft to make it rotate. A dimming wheel 6 is sleeved on the first transmission rod 71. In this embodiment, two dimming wheels 6 are set as an example (the number of dimming wheels 6 is adjusted according to the actual situation such as the size and weight of the blade 3. One, two, three, four, etc. can be set. Other embodiments are the same). Therefore, the rotation of the first transmission rod 71 drives the dimming wheel 6 to rotate, thereby causing the ladder rope 4 to deflect. The blade 3 is fixed to the ladder rope 4, and the deflection of the ladder rope 4 causes the blade 3 to rotate.

[0037] As an improved embodiment, refer to the appendix. Figure 6 The first transmission mechanism includes a first driving wheel 74 and a first driven wheel 75 that mesh with each other. The first driving wheel 74 is sleeved on the power output shaft of the first drive mechanism 22. The driving force of the first drive mechanism 22 drives the first driving wheel 74 to rotate, thereby driving the first driven wheel 75 that meshes with it to rotate. The first driven wheel 75 is sleeved on the first transmission rod 71. At the same time, the first transmission rod 71 is sleeved with a dimming wheel 6. Similar to the previous embodiment, the number of dimming wheels 6 is set to two in this embodiment. Therefore, the rotation of the first driven wheel 75 drives the first transmission rod 71 to rotate, which in turn drives the dimming wheel 6 to rotate, thereby causing the ladder rope 4 to deflect. The blade 3 is fixed to the ladder rope 4, and the deflection of the ladder rope 4 causes the blade 3 to rotate.

[0038] As an improved embodiment, refer to the appendix. Figure 5 Alternatively, the lifting rope 5 passes sequentially through the through holes provided on each blade 3. One end of the lifting rope 5 is wound around the rope winder 8, and the other end is fixed to the blade 3 furthest from the upper beam 1. A bracket 9 is provided within the accommodating cavity of the upper beam 1. The bracket 9 can be integrally formed with the upper beam 1 or it can be a detachable, separate component. The bracket 9 supports the first transmission rod 71 and the second transmission rod 72. The dimming wheel 6 and the rope winder 8 are mounted on the bracket 9. Due to the limited space in the accommodating cavity, the first drive mechanism 22 or the second drive mechanism 23 may be eccentrically positioned (i.e., closer to the long side of the upper beam), such as... Figure 5 , 6 As shown, the dimming wheel 6 needs to control the ladder rope 4, and it needs to be kept centered to achieve balance on both sides of the ladder rope 4. Therefore, the dimming wheel 6 is preferably not eccentrically set. The position of the dimming wheel is adjusted by the position setting of the first drive mechanism 22 and / or the structural setting of the first transmission mechanism. At this time, in the limited space of the bracket 9, the rope winder 8 is usually eccentrically set. In order to keep the lifting rope 5 passing through the blade 3 centered, such as Figure 7 As shown, a first rope hole 91 corresponding to the through hole on the blade 3 is provided on the central axis of the bottom surface of the support 9, and a second rope hole (not shown in the figure) is provided on the bottom surface of the upper beam 1.

[0039] As a more preferred embodiment, refer to the appendix. Figure 5 The second transmission mechanism includes a second transmission rod 72, which is connected to the power output shaft of the second drive mechanism 23. The power of the second drive mechanism 23 drives the second transmission rod 72 to rotate. The rope winding assembly generally includes at least two rope winders 8, which are sleeved on the second transmission rod 72. Therefore, the rotation of the second transmission rod 72 drives the rope winders 8 to rotate. The lifting rope 5 is wound on the rope winders 8. Therefore, the rotation of the rope winders 8 is used to raise or lower the lifting rope 5, thereby achieving the purpose of raising or lowering the blade 3.

[0040] Another preferred embodiment is described in the appendix. Figure 6 The second transmission mechanism includes a second driving wheel 76 and a second driven wheel 77 that mesh with each other. The first driving wheel 74 is sleeved on the power output shaft of the second drive mechanism 23, and the second driven wheel 77 is sleeved on the second transmission rod 72. The power of the second drive mechanism 23 drives the second driving wheel 76 to rotate, the second driving wheel 76 drives the second driven wheel 77 to rotate, and the second driven wheel 77 drives the second transmission rod 72 to rotate. The rope winding assembly generally includes at least two rope winders 8. The rope winders 8 are sleeved on the second transmission rod 72. Therefore, the rotation of the second transmission rod 72 drives the rope winders 8 to rotate. The lifting rope 5 is wound on the rope winders 8. Therefore, the rotation of the rope winders 8 is used to retract or release the lifting rope 5 to achieve the purpose of retracting or releasing the blade 3.

[0041] Unless otherwise specified, the materials, reagents, and experimental equipment involved in this embodiment of the utility model are all commercially available products in the field of door and window shielding equipment.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make improvements and modifications without departing from the core technology of this utility model, and such improvements and modifications should also fall within the patent protection scope of this utility model. Any changes within the meaning and scope equivalent to the claims of this utility model should be considered as included within the scope of the claims.

Claims

1. A dual-power venetian blind, characterized in that, include: The upper beam has a receiving cavity, in which a first driving mechanism and its driving first transmission mechanism are provided, and a second driving mechanism and its driving second transmission mechanism are provided. The blades, at least two blades, are suspended below the upper beam by ladder ropes; A ladder rope is used to fix the blade, and its upper end is fixed to the dimming assembly, which is connected to the first transmission mechanism. The lifting rope has one end fixed to the rope winding assembly and the other end fixed to the blade furthest from the upper beam. The rope winding assembly is connected to the second transmission mechanism, and the lifting rope passes through the through holes provided on each blade in sequence.

2. The dual-power venetian blind as described in claim 1, characterized in that, The first drive mechanism and the second drive mechanism are disposed in a housing to form a drive assembly.

3. The dual-power venetian blind as described in claim 2, characterized in that, The drive assembly is located at one end of the upper beam or in the middle of the upper beam.

4. The dual-power venetian blind as described in claim 1, characterized in that, The first transmission mechanism includes a first transmission rod, the first drive mechanism is connected to the first transmission rod, and the dimming component is disposed on the first transmission rod.

5. The dual-power venetian blind as described in claim 1, characterized in that, The second transmission mechanism includes a second transmission rod, the second drive mechanism is connected to the second transmission rod, and the second transmission rod is connected to the rope winding assembly.

6. The dual-power venetian blind as described in claim 1, characterized in that, The second transmission mechanism includes a second driving wheel, a second driven wheel, and a second transmission rod. The second drive mechanism is connected to the second driving wheel, the second driving wheel meshes with the second driven wheel, the second driven wheel is connected to the second transmission rod, and the second transmission rod is connected to the rope winding assembly.

7. The dual-power venetian blind as described in claim 1, characterized in that, The accommodating cavity also includes a bracket for mounting the dimming assembly and the winding assembly.

8. The dual-power venetian blind as described in claim 7, characterized in that, A first rope hole corresponding to the through hole on the blade is provided on the central axis of the bottom surface of the support, and a second rope hole is provided on the bottom surface of the upper beam.

9. The dual-power venetian blind as described in claim 1, characterized in that, One set of the rope winding assembly includes at least two rope winders arranged along the length direction of the blade; one set of the dimming assembly includes at least two dimming wheels arranged along the length direction of the blade.

Images