Compact rope winder

Abstract

The compact rope winder comprises a transmission shaft, a rope winding mechanism, a lifting pull rope and an overturning ladder rope, and one end of the transmission shaft is connected with a power input device; the rope winding mechanism comprises a transmission part, a transmission screw rod, two supporting turnover seats, two rope guide sliding seats and a plurality of fixed sliding rods; the two supporting turnover seats are arranged on the two sides of the transmission part respectively, first gear shafts are arranged at the two ends of the transmission part, and the other ends of the first gear shafts are rotatably connected with the supporting turnover seats. The rope winder is compact on the whole, the height of the whole structure is reduced, the height of an upper frame of a window frame can be reduced, and the light-transmitting area is increased.

Description

Technical Field

[0001] This utility model belongs to the field of rope winder technology, and specifically relates to a compact rope winder. Background Technology

[0002] Venetian blind insulated windows are a widely used type of window. Based on the different mechanisms that drive the blinds, they are divided into manual and motorized types.

[0003] Motorized venetian blinds insulated glass units on the market consist of multiple slats, each connected in sequence to a tilting ladder rope and a retractable cord. These ropes are then connected to a winding mechanism. Specifically, the tilting ladder rope is connected to a tilting mechanism, which in turn is connected to a transmission component. When the transmission component rotates, it drives a tilting wheel within the tilting mechanism, which in turn rotates the tilting ladder rope, causing the slats to adjust their angle. The retractable cord is wound around a drum in the winding mechanism. The drum, driven by the transmission component, rotates to wind and release the cord, thus controlling the slats' movement. Therefore, the operational stability of the winding mechanism, including the tilting and retracting mechanisms, directly affects the performance of the motorized venetian blinds insulated glass unit.

[0004] The utility model patent with publication number CN213775192U discloses a modular flip-up cord reel for electric venetian blinds. Although it achieves an integrated design of the flipping mechanism and the cord reeling mechanism, it still has the problem of being too tall overall, requiring a wide frame, which does not meet the aesthetic needs of modern users.

[0005] Therefore, there is an urgent need to design a compact rope winder to solve the above problems. Utility Model Content

[0006] To address the above technical issues, this utility model provides a compact rope winder with a smaller overall structural height, reducing the height of the upper frame of the window, increasing the light transmission area, and meeting the aesthetic needs of customers.

[0007] The technical solution of this utility model is: a compact rope winder, including a drive shaft connected to a power input device, and also including a rope winding mechanism, two lifting ropes and two flipping ladder ropes;

[0008] The rope winding mechanism includes a transmission component, a transmission screw, two support tilting seats, two rope guide slides, and several fixed slides.

[0009] The two support tilting seats are respectively located on both sides of the transmission component. The transmission component has a first gear shaft at both ends, and the other end of the first gear shaft is rotatably connected to the support tilting seat.

[0010] The lower part of the support flipping seat is provided with a first pull rope routing cavity, and a first guide rope wheel is installed in the first pull rope routing cavity;

[0011] The transmission screw is located above the transmission component, and the two ends of the transmission screw are provided with second gear shafts. The second gear shafts are rotatably connected to the support tilting seat, and the gears of the first gear shaft and the second gear shaft on the same side mesh with each other.

[0012] The upper part of the guide rope slide is connected to the transmission screw, the middle part of the guide rope slide is sleeved with the transmission component, the lower part of the guide rope slide is sleeved with the fixed slide rod, the two ends of the fixed slide rod are fixed in the support flip seat, and a second pull rope routing cavity is opened below the guide rope slide, and a second guide rope wheel is installed in the second pull rope routing cavity.

[0013] The outer side of the support tilting seat is provided with a rotatable tilting wheel. The drive shaft enters from the tilting wheel of one side of the support tilting seat, passes through two first gear shafts in sequence, and exits from the tilting wheel of the other side of the support tilting seat. The drive shaft drives the tilting wheel and the first gear shaft to rotate synchronously.

[0014] The transmission component is fitted with a rope fixing piece in the middle. The rope fixing piece is used to fix one end of the lifting rope. After the other end of the fixed lifting rope is wound around the transmission component, it passes through the second guide rope wheel in the second rope routing cavity, then through the first guide rope wheel in the first rope routing cavity, and then downwards, passing through the blades in sequence, and is fixed to the bottom beam of the louver.

[0015] The upper end of the rotating ladder rope is wound around the rotating wheel, and the lower end is fixed to the bottom beam of the louver. The louver blades are sequentially overlapped on the rotating ladder rope.

[0016] Preferably, the transmission component is a rope drum.

[0017] Preferably, the second gear shaft is rotatably connected to the support tilting seat via a second bearing.

[0018] Preferably, the first gear shaft is rotatably connected to the support tilting seat via a first bearing.

[0019] Preferably, the upper part of the guide rope slide has a lead screw mounting hole, and a lead screw sleeve is embedded in the lead screw mounting hole. The lead screw sleeve has an internal thread that matches the thread of the transmission lead screw.

[0020] Preferably, the second gear shaft has a lead screw mounting slot at its center, and the end of the transmission lead screw is inserted into the lead screw mounting slot.

[0021] Preferably, the support flipping seat is provided with a bracket, and the flipping wheel is rotatably mounted on the bracket.

[0022] Preferably, the turning wheel has an axle in the middle, and the two ends of the axle are attached to the bracket.

[0023] Preferably, the power input device includes a motor and a limit switch, one end of the drive shaft is connected to the motor, and the other end of the drive shaft is provided with a limit switch.

[0024] The beneficial effects of this utility model are:

[0025] (1) The overall structure is compact and the overall height is reduced, which can lower the height of the upper frame of the window and increase the light transmission area;

[0026] (2) The guide slider for rope winding has been improved to a three-point positioning system with a top screw and two bottom fixed sliders. Compared with the existing single screw positioning, the slider can run more stably, making the rope winding arrangement more precise and smooth.

[0027] (3) It realizes an integrated structure that combines the rope winding and ladder rope flipping structure, making assembly more convenient and reducing production costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the assembly position structure of this utility model.

[0029] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0030] Figure 3 This is a schematic diagram of the explosive decomposition of Embodiment 1 of this utility model.

[0031] Figure 4 This is a schematic diagram of the exploded disassembly of the guide rope slide.

[0032] Figure 5 This is an exploded disassembly diagram of the support tilting seat.

[0033] Figure 6 This is a sectional view of the support tilting seat.

[0034] Figure 7 This is a schematic diagram of the structure of the first gear shaft.

[0035] Figure 8 This is a schematic diagram of the second gear shaft.

[0036] In the diagram, 1 is the Venetian blind, 2 is the window frame, 3 is the motor, and 4 is the drive shaft.

[0037] 5 is the rope winding mechanism, 51 is the transmission component, 511 is the first gear shaft, 512 is the rope fixing plate, 52 is the transmission lead screw, 521 is the second gear shaft, 5211 is the lead screw mounting slot, 53 is the support tilting seat, 531 is the first rope routing cavity, 532 is the first guide rope wheel, 533 is the tilting wheel, 534 is the bracket, 54 is the guide rope slide, 541 is the second rope routing cavity, 542 is the second guide rope wheel, 543 is the lead screw mounting hole, 544 is the lead screw sleeve, and 55 is the fixed slide rod.

[0038] 6 is the lifting rope, 7 is the limit switch, and 8 is the flip ladder rope. Detailed Implementation

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "vertical," "horizontal," "inner," "outer," "front," and "back," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Compact rope reel, see Figure 1 A compact cord reel is located on the upper part of the window frame 2 to control the reeling and turning of the Venetian blind 1.

[0042] See Figure 2 and Figure 3 The system includes a drive shaft 4, one end of which is connected to a power input device. In this embodiment, the power input device is a motor 3, which is a conventional technology, and its specific structure and operation will not be described in detail. The other end of the drive shaft 4 is also equipped with a limit switch 7. The limit switch 7 is a conventional component used to control the lifting and lowering endpoint of the Venetian blind. It can monitor the range of motion of the Venetian blind and send a signal when the limit is reached, causing the motor 3 to stop running and preventing continuous movement of the motor 3 from causing damage. Since this technical measure is a conventional method, its specific structure and installation method will not be described in detail.

[0043] It also includes a rope winding mechanism 5, a lifting rope 6, and a tilting ladder rope 8.

[0044] Participate in Figures 4 to 8 The rope winding mechanism 5 includes a transmission component 51, a transmission screw 52, ​​two support tilting seats 53, two rope guide slides 54, and two fixed slide rods 55.

[0045] Two support tilting seats 53 are respectively provided on both sides of the transmission member 51. The transmission member 51 has a first gear shaft 511 at both ends, and the other end of the first gear shaft 511 is rotatably connected to the support tilting seat 53.

[0046] See Figure 5 and Figure 6 The lower part of the support tilting seat 53 is provided with a first pull rope routing cavity 531, and a first guide rope wheel 532 is installed in the first pull rope routing cavity 531.

[0047] The transmission screw 52 is located above the transmission component 51. The two ends of the transmission screw 52 are provided with second gear shafts 521. The second gear shafts 521 are rotatably connected to the support flip seat 53. The gears of the first gear shaft 511 and the second gear shaft 521 on the same side mesh with each other.

[0048] See Figure 4 The upper part of the guide rope slide 54 is connected to the transmission screw 52, ​​the middle part of the guide rope slide 54 is sleeved with the transmission component 51, the lower part of the guide rope slide 54 is sleeved with the fixed slide rod 55, the two ends of the fixed slide rod 55 are fixed in the support flip seat 53, and a second pull rope passage cavity 541 is opened below the guide rope slide 54. A second guide rope wheel 542 is installed in the pull rope passage cavity 541.

[0049] The outer side of the support tilting seat 53 is provided with a rotatable tilting wheel 533. The drive shaft 4 enters from one side of the tilting wheel 533, passes through two first gear shafts 511 in sequence, and exits from the other side of the support tilting seat 53. The drive shaft 4 drives the tilting wheel 533 and the first gear shafts 511 to rotate synchronously.

[0050] Participate in Figure 2 The transmission component 51 has a rope fixing piece 512 in the middle. The rope fixing piece 512 is used to fix one end of the lifting rope 6. After the other end of the lifting rope 6 is wound around the transmission component 51, it passes through the second guide wheel 542 in the second rope routing cavity 541, and then through the first guide wheel 532 in the first rope routing cavity 531, and passes through the blades in sequence, and is fixed to the louvered bottom beam. When the transmission component 51 rotates, it drives the second gear 521 to rotate through the first gear 511, which in turn drives the transmission screw 52 to rotate synchronously, so that the guide rope slide 54 moves relatively left and right along the axis of the transmission screw 52, ​​realizing the storage and release of the lifting rope 6.

[0051] The upper end of the flip ladder rope 8 is wound around the flip wheel 533, and the lower end is fixed to the bottom beam of the venetian blind. The blades of the venetian blind 1 are sequentially overlapped on the flip ladder rope 8.

[0052] In this embodiment, the transmission component 51 is a rope winding drum.

[0053] In this embodiment, the first gear shaft 511 is rotatably connected to the support tilting seat 51 via a first bearing. The second gear shaft 521 is rotatably connected to the support tilting seat 51 via a second bearing.

[0054] See Figure 4 In this embodiment, a lead screw mounting hole 543 is provided on the upper part of the guide rope slide 54, and a lead screw sleeve 544 is embedded in the lead screw mounting hole 543. The lead screw sleeve 544 has an internal thread that matches the thread of the transmission lead screw 52.

[0055] In this embodiment, the second gear shaft 521 has a lead screw mounting slot 5211 at its center, and the end of the transmission lead screw 52 is inserted into the lead screw mounting slot 5211.

[0056] In this embodiment, the support flipping seat 53 is provided with a bracket 534, and the flipping wheel 533 is provided with an axle in the middle. The axle is connected to the bracket 534 and is rotatably mounted on the bracket 534.

[0057] Lifting principle: The motor 3 is electrically connected to the controller. The controller controls the output shaft of the motor 3 to rotate forward and backward, and the transmission shaft 4 to rotate forward or backward. This can increase or decrease the number of turns of the lifting rope 6 on the transmission component 51, thus enabling the slats of the Venetian blind 1 to rise or fall. At the same time, the first gear 511 and the second gear 521 mesh and drive the screw 52 to rotate, causing the guide rope slide 54 to move on the screw 52.

[0058] The adjustable winding spacing of the lifting rope 6 on the transmission component 51 prevents uneven winding, tangling, rope biting, or even knotting of the lifting rope 6 on the transmission component 51.

[0059] Flipping principle: A small rotation of the drive shaft 4 can drive the flipping wheel 533 to rotate. The rotation of the flipping wheel 533 drives the flipping ladder rope 8 to rotate. The rotation of the flipping ladder rope 8 drives the Venetian blind 1 slats to flip, thereby adjusting the angle of the Venetian blind slats. When the Venetian blind slats are flipped to a certain angle, the flipping resistance of the Venetian blind 1 slats increases, and the flipping ladder rope 8 will slip relative to the flipping wheel 533. The rotation of the flipping wheel 533 will no longer drive the Venetian blind 1 slats to change angle.

[0060] The rope winder is compact and has a reduced overall height, which can lower the height of the upper frame of the window and increase the light transmission area. The rope guide slide 54 has been improved to a three-point positioning system with a top lead screw and two bottom fixed slide rods 55. Compared with the existing single lead screw positioning, the slider operation is more stable, and the rope winding arrangement is more precise and smooth. It realizes an integrated structure that combines the rope winding and ladder rope flipping structure, making assembly more convenient and reducing production costs.

[0061] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A compact rope reel, comprising a drive shaft connected to a power input device, characterized in that, It also includes a rope winding mechanism, two lifting ropes, and two tilting ladder ropes; The rope winding mechanism includes a transmission component, a transmission screw, two support tilting seats, two rope guide slides, and several fixed slides. The two support tilting seats are respectively located on both sides of the transmission component. The transmission component has a first gear shaft at both ends, and the other end of the first gear shaft is rotatably connected to the support tilting seat. The lower part of the support flipping seat is provided with a first pull rope routing cavity, and a first guide rope wheel is installed in the first pull rope routing cavity; The transmission screw is located above the transmission component, and the two ends of the transmission screw are provided with second gear shafts. The second gear shafts are rotatably connected to the support tilting seat, and the gears of the first gear shaft and the second gear shaft on the same side mesh with each other. The upper part of the guide rope slide is connected to the transmission screw, the middle part of the guide rope slide is sleeved with the transmission component, the lower part of the guide rope slide is sleeved with the fixed slide rod, the two ends of the fixed slide rod are fixed in the support flip seat, and a second pull rope routing cavity is opened below the guide rope slide, and a second guide rope wheel is installed in the second pull rope routing cavity. The outer side of the support tilting seat is provided with a rotatable tilting wheel. The drive shaft enters from the tilting wheel of one side of the support tilting seat, passes through two first gear shafts in sequence, and exits from the tilting wheel of the other side of the support tilting seat. The drive shaft drives the tilting wheel and the first gear shaft to rotate synchronously. The transmission component is fitted with a rope fixing piece in the middle. The rope fixing piece is used to fix one end of the lifting rope. After the other end of the fixed lifting rope is wound around the transmission component, it passes through the second guide rope wheel in the second rope routing cavity, then through the first guide rope wheel in the first rope routing cavity, and then downwards, passing through the blades in sequence, and is fixed to the bottom beam of the louver. The upper end of the rotating ladder rope is wound around the rotating wheel, and the lower end is fixed to the bottom beam of the louver. The louver blades are sequentially overlapped on the rotating ladder rope.

2. The compact rope winder according to claim 1, characterized in that, The transmission component is a rope drum.

3. The compact rope winder according to claim 1, characterized in that, The second gear shaft is rotatably connected to the support tilting seat via a second bearing.

4. The compact rope winder according to claim 1, characterized in that, The first gear shaft is rotatably connected to the support tilting seat via a first bearing.

5. The compact rope winder according to claim 1, characterized in that, The upper part of the guide rope slide has a lead screw mounting hole, and a lead screw sleeve is embedded in the lead screw mounting hole. The lead screw sleeve has an internal thread that matches the thread of the transmission lead screw.

6. The compact rope winder according to claim 1, characterized in that, The second gear shaft has a lead screw mounting slot at its center, and the end of the transmission lead screw is inserted into the lead screw mounting slot.

7. The compact rope winder according to claim 1, characterized in that, The support flipping seat is equipped with a bracket, and the flipping wheel is rotatably mounted on the bracket.

8. The compact rope winder according to claim 7, characterized in that, The rotating wheel has an axle in the middle, and the two ends of the axle are attached to the bracket.

9. The compact rope winder according to claim 1, characterized in that, The power input device includes a motor and a limit switch. One end of the drive shaft is connected to the motor, and the other end of the drive shaft is provided with a limit switch.

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