Lifting driving mechanism for top lifting type curtain

Abstract

The utility model relates to the technical field of curtain lifting, in particular to a lifting driving mechanism for a top lifting type curtain, which comprises a mounting seat, lifting mechanisms are fixed on two sides of the mounting seat through bolts and are rotatably connected to the outer wall of the mounting seat, each lifting mechanism comprises a main curtain rod, two sides of each main curtain rod are connected with movable rods, and the movable rods are connected with the mounting seat through bolts. A driving motor is fixed to the right side of the mounting base through a bolt, and a connecting mechanism is slidably connected to one side of the mounting base and penetrates into the lifting mechanism. The main curtain rod can be driven to rotate through mutual matching of internal parts of the lifting mechanism, so that the roller shutter is lifted and rolled, the height of the roller shutter is adjusted, and through mutual matching of internal parts of the connecting mechanism, the roller shutter on the movable rod is driven to be synchronously lifted and rolled through the main curtain rod according to needs. And lifting and rolling of the multiple roller shutters can be completed through one driving assembly, the top installation space is reduced, and then the installation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of curtain lifting technology, specifically to a lifting drive mechanism for top-lifting curtains. Background Technology

[0002] Roller blinds are a type of curtain decoration product. They are suitable for various places, such as commercial office buildings, hotels, restaurants, offices, and homes, and are especially suitable for large glass curtain walls. Roller blinds are made by processing curtain fabric with resin and rolling it into a roller shape. The roller blind is raised and lowered by a pull cord or chain. When the roller blind is lowered, it can make the indoor light soft and avoid the discomfort of direct sunlight, achieving a good sun-shading effect. When the roller blind is raised, its volume is so small that it is not easily noticed.

[0003] A search revealed a utility model patent with publication number CN222184636U, which specifically discloses a roller blind lifting mechanism and roller blind structure. The roller blind lifting mechanism includes a shell; a central shaft; an inner cylinder sleeved on the central shaft; an outer cylinder sleeved on the inner cylinder; and a drive assembly capable of driving the outer cylinder to rotate. The outer peripheral wall of the inner cylinder has a circumferential track groove, and the inner wall of the outer cylinder has a recess, with a track ball positioned between the recess and the track groove. The outer peripheral wall of the inner cylinder has multiple V-shaped guide grooves arranged at intervals, with positioning points within the guide grooves. The guide grooves and track grooves are connected. The track groove includes a track segment located between the openings at both ends of the guide groove. When the drive assembly drives the outer cylinder to rotate and moves the track ball into the guide groove to the positioning point, the track ball and the outer cylinder are locked and stop rotating. When the drive assembly drives the outer cylinder to rotate and moves the track ball into the track segment, the track ball continues to move within the track groove, allowing the track ball and the outer cylinder to rotate.

[0004] Although the aforementioned patent uses a drive assembly to drive the outer cylinder to rotate and the trackball to move, enabling the roller blind to unfold and stop at different heights, the existing drive mechanism requires an independent drive assembly to control the raising and lowering of each individual blind. In shopping malls or office buildings with large glass curtain walls, multiple roller blinds are sometimes raised and lowered at different heights for aesthetic purposes. The height difference of the roller blinds enhances their appearance and artistry, thus requiring each roller blind to have an independent drive assembly. This significantly increases the expenditure costs of shopping malls and office buildings and increases the installation volume of the lifting drive assembly at the top.

[0005] Therefore, it is necessary to propose a lifting drive mechanism for top-lifting curtains to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a lifting drive mechanism for top-mounted lifting curtains. Through the cooperation of the internal parts of the connecting mechanism, the main curtain rod drives the roller blinds on the movable rod to rise, fall, and retract synchronously as needed. Thus, multiple roller blinds can be raised, lowered, and retracted with a single drive component, reducing the installation space at the top and thereby reducing installation costs. This solves the problem in the prior art where each roller blind is equipped with an independent drive component, which greatly increases the expenditure costs of shopping malls and office buildings and increases the installation volume of the lifting drive component at the top.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lifting drive mechanism for a top-lifting curtain, including a mounting base, on both sides of the mounting base bolted with a lifting mechanism and rotatably connected to the outer wall of the mounting base, and on one side of the mounting base slidably connected with a connecting mechanism that extends into the interior of the lifting mechanism;

[0008] The lifting mechanism includes a main curtain rod, which is installed in the middle of the outer wall of the mounting base. Movable rods are connected to both sides of the main curtain rod and are rotatably sleeved on the outer wall of the mounting base. A drive motor is fixed to the right side of the mounting base by bolts. The output end of the drive motor is rotatably connected to a transmission shaft through a coupling. Correction rings are mechanically fixed to both sides of the outer wall of the main curtain rod and the movable rod.

[0009] The connecting mechanism includes multiple telescopic rods that are slidably connected inside the movable rod. A telescopic spring is fitted onto the outer wall of each telescopic rod and is mechanically connected to the inner wall of the movable rod. Electric push rods are installed inside both sides of the main curtain rod. A connecting plate is mechanically connected to the telescopic end of each electric push rod and is slidably connected inside the main curtain rod. Multiple connecting posts are mechanically fixed to the surface of the connecting plate near the telescopic rod and fit snugly against the telescopic rod.

[0010] Preferably, the connecting mechanism further includes a sliding ring, which is slidably connected to the interior of the mounting base. One side surface of the sliding ring is mechanically fixed with a limit post and extends through to the inner wall of the movable rod to fit against the telescopic rod. The other side of the sliding ring is mechanically connected to the interior of the mounting base with a support spring.

[0011] Preferably, the main curtain rod is fixed to the outer wall of the drive shaft by bolts, and the mounting base is fixed to the mounting position at the top of the window by bolts. The bottom ends of the main curtain rod and the movable rod are both connected to curtains and are located between the correction rings.

[0012] Preferably, the movable rod has multiple mating holes on both sides that match the limiting post and the connecting post, and the movable rod has a sliding groove inside that matches the telescopic rod. The contact surfaces of the connecting post, the limiting post and the mating holes on the surface of the movable rod are all arc surfaces.

[0013] Preferably, the pushing force of the electric push rod is greater than the elastic coefficient of the support spring, and the interior of the mounting base is provided with a telescopic groove that matches the support spring. The top of the sliding ring is provided with a protrusion, and the inner wall of the mounting base is provided with a sliding groove that matches the protrusion on the surface of the sliding ring.

[0014] Preferably, the main curtain rod has an internal mounting groove that matches the electric push rod, and an expansion groove that matches the connecting plate. The length of the connecting post is 5mm longer than the length of the limiting post. The electric push rod's wire is electrically connected to an external wire through an electric slip ring.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By starting the drive motor, the drive motor drives the transmission shaft to rotate, which in turn drives the main curtain rod to rotate. The rotation of the main curtain rod causes the roller blind to rise and fall, allowing for height adjustment. At the same time, the correction ring limits the roller blind during the rolling process to prevent it from shifting or getting tangled with the mounting base. The support spring pushes the sliding ring to move, which in turn moves the limiting post into the movable rod, fixing the connection between the movable rod and the mounting base. This ensures that the main curtain rod will not rotate when it is rolling up, preventing the roller blind from falling off the movable rod.

[0017] 2. By having the electric push rod activated by the staff, the electric push rod moves the connecting plate. The movement of the connecting plate causes the connecting column to move from the main curtain rod to the inside of the movable rod, where it contacts the telescopic rod. This pushes the telescopic rod to compress the telescopic spring and retract, causing the telescopic rod to push the limiting column out of the movable rod, thus detaching the connection between the movable rod and the mounting base. The connecting column then penetrates into the movable rod, completing the connection between the main curtain rod and the movable rod. This allows the main curtain rod to rotate, driving multiple movable rods to rotate, simultaneously raising and lowering multiple roller blinds, thereby achieving height adjustment of the roller blinds. Furthermore, a single drive component reduces the installation space required for the mounting base at the top of the window and lowers installation costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the transmission shaft and movable rod of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the mounting base of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0024] Explanation of reference numerals in the attached drawings: 1. Mounting base; 2. Lifting mechanism; 201. Main curtain rod; 202. Movable rod; 203. Drive motor; 204. Drive shaft; 205. Correction ring; 3. Connecting mechanism; 301. Sliding ring; 302. Limiting post; 303. Support spring; 304. Telescopic rod; 305. Telescopic spring; 306. Electric push rod; 307. Connecting plate; 308. Connecting post. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The lifting drive mechanism for a top-lifting curtain shown includes a mounting base 1, with a lifting mechanism 2 bolted to both sides of the mounting base 1 and rotatably connected to the outer wall of the mounting base 1. A connecting mechanism 3 is slidably connected to one side of the mounting base 1 and extends into the interior of the lifting mechanism 2.

[0027] The lifting mechanism 2 includes a main curtain rod 201, which is installed in the middle of the outer wall of the mounting base 1. Movable rods 202 are connected to both sides of the main curtain rod 201 and are rotatably sleeved on the outer wall of the mounting base 1. A drive motor 203 is fixed to the right side of the mounting base 1 by bolts. The output end of the drive motor 203 is rotatably connected to a transmission shaft 204 through a coupling. Correction rings 205 are mechanically fixed to both sides of the outer wall of the main curtain rod 201 and the movable rods 202.

[0028] The connecting mechanism 3 includes multiple telescopic rods 304, which are slidably connected to the inside of the movable rod 202. A telescopic spring 305 is sleeved on the outer wall of the telescopic rod 304 and is mechanically connected to the inner wall of the movable rod 202. Electric push rods 306 are installed inside both sides of the main curtain rod 201. The telescopic end of the electric push rod 306 is mechanically connected to a connecting plate 307 and is slidably connected to the inside of the main curtain rod 201. Multiple connecting posts 308 are mechanically fixed on the side surface of the connecting plate 307 near the telescopic rod 304 and are in contact with the telescopic rod 304.

[0029] By cooperating with each other among the internal parts of the lifting mechanism 2, the main curtain rod 201 can be rotated, causing the roller blind to rise and fall and roll up, thus completing the height adjustment of the roller blind. By cooperating with each other among the internal parts of the connecting mechanism 3, the roller blind on the movable rod 202 can be raised, lowered and rolled up synchronously as needed through the main curtain rod 201. Thus, the raising and lowering of multiple roller blinds can be completed through one drive component, reducing the installation space at the top and thus reducing the installation cost.

[0030] Refer to the instruction manual appendix Figure 1-5 The connecting mechanism 3 also includes a sliding ring 301, which is slidably connected to the inside of the mounting base 1. One side of the sliding ring 301 is mechanically fixed with a limiting post 302 and extends through to the inner wall of the movable rod 202 and fits against the telescopic rod 304. The other side of the sliding ring 301 is mechanically connected to the inside of the mounting base 1 with a support spring 303. Through the mutual cooperation between the internal parts of the connecting mechanism 3, the sliding ring 301 can push the limiting post 302 through into the inside of the movable rod 202, thus completing the connection and fixation between the movable rod 202 and the mounting base 1.

[0031] Refer to the instruction manual appendix Figure 1-5 The main curtain rod 201 is fixed to the outer wall of the drive shaft 204 by bolts, and the mounting base 1 is fixed to the mounting position at the top of the window by bolts. The bottom ends of the main curtain rod 201 and the movable rod 202 are both connected to curtains and are located between the correction rings 205. The bottom ends of the main curtain rod 201 and the movable rod 202 are both connected to curtains and are located between the correction rings 205, which makes it easy to limit the rolling blind by the correction rings 205 and prevent the blind from deviating and getting tangled with the mounting base 1 during the rolling process.

[0032] Refer to the instruction manual appendix Figure 1-5The movable rod 202 has multiple mating holes on both sides that match the limiting post 302 and the connecting post 308. The movable rod 202 also has a sliding groove inside that matches the telescopic rod 304. The contact surfaces of the connecting post 308, the limiting post 302 and the mating holes on the surface of the movable rod 202 are all arc surfaces. The fact that the contact surfaces of the connecting post 308, the limiting post 302 and the mating holes on the surface of the movable rod 202 are all arc surfaces facilitates the mating connection between the connecting post 308, the limiting post 302 and the mating holes on the surface of the movable rod 202.

[0033] Refer to the instruction manual appendix Figure 1-5 The pushing force of the electric push rod 306 is greater than the elastic coefficient of the support spring 303, and the interior of the mounting base 1 is provided with a telescopic groove that matches the support spring 303. The top of the sliding ring 301 is provided with a protrusion, and the inner wall of the mounting base 1 is provided with a sliding groove that matches the protrusion on the surface of the sliding ring 301. The protrusion at the top of the sliding ring 301 and the sliding groove on the inner wall of the mounting base 1 that matches the protrusion on the surface of the sliding ring 301 facilitate the sliding of the sliding ring 301 inside the mounting base 1.

[0034] Refer to the instruction manual appendix Figure 1-5 The main curtain rod 201 has an internal mounting groove that matches the electric push rod 306, and a telescopic groove that matches the connecting plate 307. The length of the connecting post 308 is 5mm longer than the length of the limiting post 302. The wire of the electric push rod 306 is electrically connected to the external wire through an electric slip ring. The connection between the connecting post 308 and the limiting post 302 facilitates the sliding of the connecting post 308 into the movable rod 202. The telescopic rod 304 pushes the limiting post 302 out of the movable rod 202, releasing the connection limit between the movable rod 202 and the mounting base 1.

[0035] The working principle of this practical application is as follows:

[0036] Refer to the instruction manual appendix Figure 1-5 By starting the drive motor 203, the drive motor 203 drives the transmission shaft 204 to rotate, which in turn drives the main curtain rod 201 to rotate. The rotation of the main curtain rod 201 drives the roller blind to rise and fall, thus adjusting the height of the roller blind. At the same time, the correction ring 205 limits the roller blind during the rolling process to prevent it from shifting and getting tangled in the mounting base 1. The support spring 303 pushes the sliding ring 301 to move, which in turn drives the limiting post 302 to move into the movable rod 202, thus connecting and fixing the movable rod 202 to the mounting base 1. This ensures that the main curtain rod 201 will not rotate when it is rolling up, preventing the roller blind from falling off the movable rod 202.

[0037] Refer to the instruction manual appendix Figure 1-5When the staff activates the electric push rod 306, it pushes the connecting plate 307 to move. The movement of the connecting plate 307 causes the connecting post 308 to move from the main curtain rod 201 into the movable rod 202 and into contact with the telescopic rod 304. This pushes the telescopic rod 304 to compress the telescopic spring 305 and retract it, causing the telescopic rod 304 to push the limiting post 302 out of the movable rod 202, thus disconnecting the movable rod 202 from the mounting base 1. The connecting post 308 then penetrates into the movable rod 202, completing the connection between the main curtain rod 201 and the movable rod 202. This allows the main curtain rod 201 to rotate, driving multiple movable rods 202 to rotate, simultaneously driving multiple roller blinds to rise and fall, thereby adjusting the height of the roller blinds. Furthermore, a single drive assembly can reduce the installation space of the mounting base 1 at the top of the window and lower the installation cost.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lifting drive mechanism for a top-lifting curtain, characterized in that: Includes a mounting base (1), on both sides of the mounting base (1) a lifting mechanism (2) is bolted and rotatably connected to the outer wall of the mounting base (1), and a connecting mechanism (3) is slidably connected to one side of the mounting base (1) and extends through the interior of the lifting mechanism (2); The lifting mechanism (2) includes a main curtain rod (201), which is installed in the middle of the outer wall of the mounting base (1). Movable rods (202) are connected to both sides of the main curtain rod (201) and are rotatably sleeved on the outer wall of the mounting base (1). A drive motor (203) is fixed to the right side of the mounting base (1) by bolts. The output end of the drive motor (203) is rotatably connected to a transmission shaft (204) through a coupling. Correction rings (205) are mechanically fixed to both sides of the outer walls of the main curtain rod (201) and the movable rods (202). The connecting mechanism (3) includes a telescopic rod (304), and there are multiple telescopic rods (304). Multiple telescopic rods (304) are slidably connected to the inside of the movable rod (202). The outer wall of the telescopic rod (304) is fitted with a telescopic spring (305) and is mechanically connected to the inner wall of the movable rod (202). Electric push rods (306) are installed inside both sides of the main curtain rod (201). The telescopic end of the electric push rod (306) is mechanically connected to a connecting plate (307) and is slidably connected to the inside of the main curtain rod (201). Multiple connecting posts (308) are mechanically fixed on the side surface of the connecting plate (307) near the telescopic rod (304) and are in contact with the telescopic rod (304).

2. The lifting drive mechanism for a top-lifting curtain according to claim 1, characterized in that: The connecting mechanism (3) further includes a sliding ring (301), which is slidably connected to the inside of the mounting base (1). A limit post (302) is mechanically fixed on one side surface of the sliding ring (301), and extends through to the inner wall of the movable rod (202) and fits against the telescopic rod (304). A support spring (303) is mechanically connected between the other side of the sliding ring (301) and the inside of the mounting base (1).

3. The lifting drive mechanism for a top-lifting curtain according to claim 1, characterized in that: The main curtain rod (201) is fixed to the outer wall of the drive shaft (204) by bolts, and the mounting base (1) is fixed to the mounting position at the top of the window by bolts. The bottom ends of the main curtain rod (201) and the movable rod (202) are both connected to curtains and are located between the correction rings (205).

4. A lifting drive mechanism for a top-lifting curtain according to claim 2, characterized in that: The movable rod (202) has multiple mating holes on both sides that match the limiting post (302) and the connecting post (308), and the movable rod (202) has a sliding groove inside that matches the telescopic rod (304). The contact surfaces of the connecting post (308), the limiting post (302) and the mating holes on the surface of the movable rod (202) are all arc surfaces.

5. A lifting drive mechanism for a top-lifting curtain according to claim 2, characterized in that: The pushing force of the electric push rod (306) is greater than the elastic coefficient of the support spring (303), and the interior of the mounting base (1) is provided with a telescopic groove that matches the support spring (303). The top of the sliding ring (301) is provided with a protrusion, and the inner wall of the mounting base (1) is provided with a sliding groove that matches the protrusion on the surface of the sliding ring (301).

6. A lifting drive mechanism for a top-lifting curtain according to claim 2, characterized in that: The main curtain rod (201) has an internal mounting groove that matches the electric push rod (306) and a telescopic groove that matches the connecting plate (307). The length of the connecting post (308) is 5mm longer than the length of the limiting post (302). The wire of the electric push rod (306) is electrically connected to the external wire through an electric slip ring.

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