Curtain booster

Abstract

The utility model discloses a curtain booster which comprises a flat shell, a walking wheel driven by a motor, two hooks and an adjusting mechanism. The walking wheel is located at the upper end of the middle of the shell, and the two hooks are located on the two sides of the walking wheel. The adjusting mechanism is used for adjusting the height of the hook extending out of the shell; the adjusting mechanism comprises a shifting wheel, a gear box, two screw rods and two connecting guide parts; the shifting wheel is exposed out of the bottom position of the front face of the shell, and a compression spring is arranged between the hook and the connecting guide part. The shifting wheel is connected with the rear end of the screw rod through the gear box, the front end of the screw rod is in threaded connection with the rear end of the connecting guide part, and the rear end of the hook is connected to the front end of the connecting guide part; the stirring wheel is rotated to drive the screw rod to rotate, so that the connecting guide part moves up and down in the shell, and the extending height of the hook is adjusted. The transmission mechanism has the characteristics of high transmission efficiency and high adjusting speed.

Description

Technical Field

[0001] The utility model relates to a curtain booster, in particular to a device for controlling the opening and closing of curtains. After being connected to the curtain, the curtain booster can move along the bottom of the curtain hanging rod, thereby realizing the opening and closing of the curtain by pulling the curtain. Background Art

[0002] The curtain booster comprises a housing, a suspension assembly, and motor-driven running wheels. The running wheels are partially exposed above the housing to contact the lower surface of the track. The suspension assembly consists of two suspension components, each of which includes a suspension wheel assembly extending from the housing and positioned within the track, and a column extending into the housing. A compression spring is sleeved within the column, applying a downward force to the column, pressing the suspension wheel assembly downward against the inner surface of the track and the running wheel upward against the lower surface of the track.

[0003] Compared to traditional electric curtains, curtain boosters solve the problem of inability to push the curtain due to wheel slippage or poor contact with the track. The design of the compression spring ensures good contact between the wheel and the track, improving the stability and reliability of the curtain push.

[0004] When installing the curtain booster, the hook of the suspension assembly needs to be hooked onto the curtain hanging ring, and the running wheel needs to be pressed tightly against the lower surface of the track. The above installation process requires adjusting the extension length of the suspension assembly. The existing adjustment mechanism uses a worm gear method for adjustment, which is relatively complex in structure and has a relatively slow adjustment speed due to low transmission efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a curtain booster with high transmission efficiency and fast adjustment speed.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: the curtain booster includes a flat shell, a running wheel driven by a motor, two hooks and an adjustment mechanism;

[0007] The running wheel is located at the middle upper end of the shell, and the two hooks are located on both sides of the running wheel;

[0008] The adjustment mechanism is used to adjust the height of the hook extending out of the housing;

[0009] The adjustment mechanism includes a toggle wheel, a gear box, two screws and two connecting guide parts; the toggle wheel is exposed at the bottom position of the front side of the shell, and a compression spring is arranged between the hook and the connecting guide part; the toggle wheel is connected to the rear end of the screw through the gear box, the front end of the screw is threadedly connected to the rear end of the connecting guide part, and the rear end of the hook is connected to the front end of the connecting guide part; by rotating the toggle wheel, the screw is driven to rotate, so that the connecting guide part moves up and down in the shell, thereby adjusting the extension height of the hook.

[0010] A further preferred technical solution of the present invention is: a threaded gasket is pre-embedded in the bottom of the connecting guide portion, and the screw is threadedly connected to the threaded gasket.

[0011] A further preferred technical solution of the present invention is that the connecting guide portion is an elongated strip with a rectangular cross-section, and has a guide groove within the housing for the connecting guide portion to move forward and backward. The guide groove limits the movement trajectory of the connecting guide portion, ensuring stable and reliable movement of the connecting guide portion.

[0012] A further preferred technical solution of the present invention is: the screw is installed in the shell, the gear box drives the screw to rotate, the rotating screw drives the connecting guide part to move up and down along the length direction, and the moving connecting guide part drives the hook to move to change the extension height of the hook.

[0013] A further preferred technical solution of the present invention is: the gearbox includes a driving gear, two transition gears and two driven gears;

[0014] The driving gear is connected to the toggle wheel, and the rotation of the toggle wheel drives the driving gear to rotate;

[0015] The two driven gears correspond to the two screw rods one by one, and the driven gears are connected to the screw rods. The rotation of the driven gears drives the screw rods connected thereto to rotate synchronously.

[0016] The two driven gears are respectively located on both sides of the driving gear. One driven gear is connected to the driving gear through a transition gear. The driving gear rotates to drive the driven gear to rotate through the transition gear.

[0017] A further preferred technical solution of the present invention is: two left and right thrust bearings are installed on the gear box, one screw corresponds to one thrust bearing, the screw passes through the corresponding thrust bearing and is connected to the driven gear, and the rotation of the driven gear drives the corresponding screw to rotate.

[0018] A further preferred technical solution of the present invention is that the screw, the driven gear connected to the screw, and the bearing sleeved outside the screw are coaxially arranged.

[0019] A further preferred technical solution of the present invention is that the driving gear and the shifting wheel are coaxially arranged.

[0020] A further preferred technical solution of the present utility model is: the hook comprises a hook portion and a rod portion;

[0021] One end of the rod is connected to the hook, and the other end of the rod extends into the connecting guide and is covered with a bolt;

[0022] The bolt limits the other end of the screw rod to the connecting guide portion;

[0023] The compression spring is sleeved on the rod portion and is in a compressed state.

[0024] A further preferred technical solution of the present invention is: one end of the compression spring acts on the bolt, and the other end of the compression spring acts on the inner wall of the connecting guide portion, and the compression spring applies force to the hook to retract into the connecting guide portion.

[0025] Compared with existing technologies, the advantages of this utility model are as follows: First, the combination of a toggle wheel and a gearbox makes the adjustment process more direct and rapid. The user can quickly adjust the hook height by simply turning the toggle wheel, significantly improving adjustment efficiency. While traditional worm gear adjustment mechanisms are complex and involve the coordination of multiple components, the adjustment mechanism of this utility model is relatively simple, reducing the number of parts and simplifying manufacturing and maintenance.

[0026] Secondly, the utility model is designed to connect the connecting guide part with the screw rod, so that no obvious radial displacement will occur during the adjustment process, ensuring the stability of the adjustment and avoiding the problem of instability during the adjustment process caused by unreasonable structural design.

[0027] Finally, the height of the hook extending from the housing in this utility model can be adjusted simply by turning a dial exposed on the housing. This simplified process makes it more convenient for users, especially in situations where frequent adjustments are required, significantly improving the user experience. This simpler and more direct adjustment method reduces potential points of failure, thereby reducing the device's failure rate and improving overall reliability.

[0028] In summary, the present invention overcomes the shortcomings of traditional worm gear adjustment by adopting an adjustment method of a toggle wheel, a gear box and a screw, and provides a more efficient, stable and user-friendly solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the structure of the utility model in a pre-assembled state;

[0031] Figure 2 This is a schematic diagram of the structure of the utility model in an assembled state;

[0032] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0033] Figure 4 for Figure 3 Schematic diagram of the structure in decomposed state;

[0034] Figure 5 It is a structural diagram of the adjustment mechanism in the utility model;

[0035] Figure 6 for Figure 5 Cross-sectional view of section AA;

[0036] Figure 7 for Figure 5 Cross-sectional view of section BB.

[0037] The accompanying drawings are marked as follows: 1. Housing; 2. Travel wheel; 3. Hook; 3a. Hook portion; 3b. Rod portion; 4. Driving wheel; 5. Gear box; 6. Screw; 7. Connecting guide portion; 8. Compression spring; 9. Threaded gasket; 10. Driving gear; 11. Transition gear; 12. Driven gear; 13. Thrust bearing; 14. Bolt. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "back," "inner," and "outer" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. Terms such as "first" and "second" are used solely to facilitate understanding and have no other directional meanings, and should not be construed as limitations on this utility model.

[0040] Curtain Booster, such as Figures 1 to 4 As shown, the utility model comprises a flat housing 1, a motor-driven running wheel 2, two hooks 3, and an adjustment mechanism. The running wheel 2 is located at the upper middle end of the housing 1, while the two hooks 3 are located on either side of the running wheel 2. The adjustment mechanism is designed to adjust the height at which the hooks 3 extend beyond the housing 1. By rationally designing the housing 1, the utility model makes the entire device more compact, and the rational arrangement of the mounting positions of the running wheel 2, hook 3, and adjustment mechanism greatly facilitates installation and use, while also effectively reducing occupied space.

[0041] like Figures 5 to 7 As shown, the adjustment mechanism includes a toggle wheel 4, a gear box 5, two screws 6 and two connecting guides 7. The toggle wheel 4 is located at the bottom of the front of the housing 1. The user can easily toggle the toggle wheel 4 exposed from the housing 1 to adjust the height of the hook 3 extending from the housing 1. The operation is simple and convenient.

[0042] Specifically, the toggle wheel 4 is connected to the rear end of the screw 6 via the gearbox 5. The front end of the screw 6 is threadedly connected to the rear end of the connecting guide 7, and the rear end of the hook 3 is connected to the front end of the connecting guide 7. By rotating the toggle wheel 4, the screw 6 is driven to rotate, causing the connecting guide 7 to move up and down within the housing 1, thereby adjusting the extension height of the hook 3. The combination of the toggle wheel 4 and the gearbox 5 in this utility model makes the adjustment process more direct and rapid. The user can quickly adjust the height of the hook 3 by simply rotating the toggle wheel 4, significantly improving adjustment efficiency and enhancing the user experience.

[0043] like Figure 3 As shown, a compression spring 8 is disposed between the hook 3 and the connecting guide 7. The combination of the running wheel 2 and the compression spring 8 ensures good contact between the running wheel 2 and the track, thereby enhancing the stability and reliability of the curtain push, and effectively overcoming the slippage that may occur during the push and pull process of traditional curtain boosters.

[0044] like Figure 6As shown, hook 3 consists of a hook portion 3a and a rod portion 3b. One end of rod portion 3b is connected to hook portion 3a, while the other end extends into connecting guide portion 7 and is covered with a bolt 14. Bolt 14 restrains the other end of rod portion 3b within connecting guide portion 7. Bolt 14 facilitates the installation of hook 3, ensuring the flexibility of hook 3 during use, adapting to the installation requirements of the curtain booster, and ensuring the stability and reliability of the hook 3 connection structure. Compression spring 8 is mounted on rod portion 3b and is in a compressed state. The installation of compression spring 8 ensures that the force it provides is along the length of rod portion 3b of hook 3, ensuring the stability of the force applied to hook 3.

[0045] One end of the compression spring 8 acts on the bolt 14, and the other end acts on the inner wall of the connecting guide 7, exerting a force on the hook 3 to retract into the connecting guide 7. The compression spring 8 provides the retracting force for the hook 3, preventing the hook 3 from swinging or interfering in the idle state, thereby improving the safety and convenience of use.

[0046] like Figure 4 As shown, a threaded washer 9 is embedded in the bottom of the connecting guide 7, and the screw rod 6 is threadedly connected to the threaded washer 9. The rotation of the screw rod 6 drives the threaded washer 9 to move along the length of the screw rod 6. The movement of the threaded washer 9 drives the connecting guide 7 to move along the length of the screw rod 6, thereby changing the extension height of the hook 3.

[0047] The connecting guide 7 is elongated, with a quasi-rectangular cross-section. A guide slot is provided within the housing 1 to facilitate its forward and backward movement. The slot limits the movement of the connecting guide 7, ensuring its stability and reliability. The present invention's design of the connection between the connecting guide 7 and the screw 6 prevents significant radial displacement during adjustment, ensuring stable adjustment and avoiding issues of unstable adjustment caused by improper structural design.

[0048] Screw 6 is mounted within housing 1. Operation of gearbox 5 drives screw 6 to rotate, which in turn drives connecting guide 7 to move vertically along its length, thereby varying the extension height of hook 3. In the present invention, screw 6 is movably connected to gearbox 5. Screw 6 only rotates about its central axis and does not undergo axial or radial displacement. The stability of screw 6's movement further limits the stability of connecting guide 7's movement.

[0049] like Figure 4 and Figure 7As shown, the gearbox 5 includes a driving gear 10, two transition gears 11 and two driven gears 12. The driving gear 10 is connected to the toggle wheel 4, and the rotation of the toggle wheel 4 drives the driving gear 10 to rotate. The two driven gears 12 correspond one-to-one to the two screw rods 6, and the driven gears 12 are connected to the screw rods 6. The rotation of the driven gears 12 drives the screw rods 6 connected thereto to rotate synchronously. The two driven gears 12 are respectively located on both sides of the driving gear 10, and one of the driven gears 12 is connected to the driving gear 10 through the transition gear 11. The rotation of the two driven gears 12 is driven by a driving gear 10, thereby driving the rotation of the two screw rods 6, and then the rotation of the two screw rods 6 drives the height adjustment of the two hooks 3. By driving the height adjustment of the two hooks 3 with a single driving wheel, the consistency of the movement of the two hooks 3 and the consistency of the height change can be ensured, thereby improving the stability of the entire curtain booster.

[0050] like Figure 4 As shown, two left and right thrust bearings 13 are mounted on the gearbox 5, one for each screw 6. The screws 6 pass through their corresponding thrust bearings 13 and connect to the driven gear. Rotation of the driven gear 12 drives the corresponding screw 6. The thrust bearings 13 in this utility model not only limit the stability of the screw 6 as it rotates about its central axis, preventing it from shaking or deflecting, but also reduce friction during rotation.

[0051] Furthermore, the present invention designs a coaxial arrangement of the screw 6, the driven gear 12 connected to the screw 6, and the bearing sleeved on the outside of the screw 6. The driving gear 10 is coaxially arranged with the toggle wheel 4. This coaxial design ensures direct power transmission and reduces energy loss caused by axial or radial offset, thereby improving overall transmission efficiency. At the same time, the coaxial design enables each component to maintain good alignment during operation, reducing friction and wear and extending the service life of the equipment. By arranging multiple components coaxially, the mechanical structure is simplified, the number of parts is reduced, and the complexity of manufacturing and maintenance is reduced.

[0052] The above describes a curtain booster provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the present invention and its core concepts. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. Curtain booster, characterized by: It includes a flat shell, a traveling wheel driven by a motor, two hooks and an adjustment mechanism; The running wheel is located at the middle upper end of the shell, and the two hooks are located on both sides of the running wheel; The adjustment mechanism is used to adjust the height of the hook extending out of the housing; The adjustment mechanism includes a toggle wheel, a gear box, two screws and two connecting guide parts; the toggle wheel is exposed at the bottom position of the front side of the shell, and a compression spring is arranged between the hook and the connecting guide part; the toggle wheel is connected to the rear end of the screw through the gear box, the front end of the screw is threadedly connected to the rear end of the connecting guide part, and the rear end of the hook is connected to the front end of the connecting guide part; by rotating the toggle wheel, the screw is driven to rotate, so that the connecting guide part moves up and down in the shell, thereby adjusting the extension height of the hook.

2. The curtain booster according to claim 1, characterized in that: A threaded gasket is pre-buried at the bottom of the connecting guide portion, and the screw is threadedly connected to the threaded gasket.

3. The curtain booster according to claim 1, characterized in that: The connecting guide portion is in the shape of an elongated strip, and its cross section is a rectangular structure. A guiding groove is provided in the shell to allow the connecting guide portion to move forward and backward.

4. The curtain booster according to claim 1 or 2, characterized in that: The screw is installed in the shell, and the gear box drives the screw to rotate. The rotating screw drives the connecting guide part to move up and down along the length direction, and the moving connecting guide part drives the hook to move to change the extension height of the hook.

5. The curtain booster according to claim 1, characterized in that: The gearbox includes a driving gear, two transition gears and two driven gears; The driving gear is connected to the toggle wheel, and the rotation of the toggle wheel drives the driving gear to rotate; The two driven gears correspond to the two screw rods one by one, and the driven gears are connected to the screw rods. The rotation of the driven gears drives the screw rods connected thereto to rotate synchronously. The two driven gears are respectively located on both sides of the driving gear. One driven gear is connected to the driving gear through a transition gear. The driving gear rotates to drive the driven gear to rotate through the transition gear.

6. The curtain booster according to claim 5, characterized in that: The gear box is equipped with two left and right thrust bearings. One screw corresponds to one thrust bearing. The screw passes through the corresponding thrust bearing and is connected to the driven gear. The rotation of the driven gear drives the corresponding screw to rotate.

7. The curtain booster according to claim 6, characterized in that: The screw, the driven gear connected to the screw, and the bearing sleeved outside the screw are coaxially arranged.

8. The curtain booster according to claim 5, characterized in that: The driving gear is coaxially arranged with the shifting wheel.

9. The curtain booster according to claim 1, characterized in that: The hook comprises a hook portion and a rod portion; One end of the rod is connected to the hook, and the other end of the rod extends into the connecting guide and is covered with a bolt; The bolt limits the other end of the screw rod to the connecting guide portion; The compression spring is sleeved on the rod portion and is in a compressed state.

10. The curtain booster according to claim 9, characterized in that: One end of the compression spring acts on the bolt, and the other end of the compression spring acts on the inner wall of the connecting guide portion. The compression spring applies a force to the hook to retract into the connecting guide portion.

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