Liftable curtain frame

Abstract

The invention relates to the technical field of curtains, in particular to a liftable curtain frame which comprises a track beam used for installing a curtain, lifters are installed at the two ends in the track beam respectively, each lifter comprises a rack, a winch driven by a self-locking motor to rotate is installed on the rack, and a steel wire rope is wound on each winch. A pulley with the axis horizontally extending is further rotationally installed on the rack, the end, away from the winch, of the steel wire rope is wound around the bottom of the pulley and connected with a hanging piece, and a limiting microswitch matched with the hanging piece is further installed on the rack. The track beam adopts the integrated design of the cross beam and the track, so that the rigidity is enhanced, and the bearing capacity is stronger; the lifter is arranged in the track beam, so that the structure is more compact, and the lifter is more attractive after being installed.

Description

Technical Field

[0001] The present invention relates to the technical field of curtains, and particularly to a liftable curtain rack. Background Art

[0002] In the prior art, a utility model patent with the application number CN202322930950.1 discloses a remotely controllable electric finished curtain box that can be lifted up and down, including a top seat, a dual-axis motor, steel wire ropes, a base, a curtain box body, a wire winder, and a traction mechanism. The left and right sides of the dual-axis motor are respectively connected to the top seat through transmission shafts. The left and right sides of the transmission shaft in each top seat are respectively connected to the wire winder. The inside of the wire winder is connected to the steel wire rope, and the bottom of the steel wire rope is fixedly connected to the base, and the base is fixedly connected to the curtain box; the dual-axis motor drives the wire winder to wind or unwind the wire, so that the steel wire rope can drive the curtain box body to move up and down, facilitating people to disassemble and clean the curtain.

[0003] However, the dual-axis motor and the wire winder for winding the steel wire rope of the above curtain box are separately designed from the curtain box body. Such a structure will occupy a large installation space and has poor aesthetics; moreover, the above curtain box uses the same motor to drive the wire winders on both sides to wind or release the steel wire rope, which is not convenient for leveling the two ends of the curtain box and needs to be improved. Summary of the Invention

[0004] The purpose of the present invention is to provide a liftable curtain rack with a more compact and beautiful structure to solve the defects mentioned in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A liftable curtain rack includes a track beam for installing a curtain. Lifting devices are respectively installed at both ends inside the track beam. The lifting device includes a frame. A winch driven by a self-locking motor is installed on the frame. A steel wire rope is wound around the winch. A pulley with a horizontally extending axis is also rotatably installed on the frame. One end of the steel wire rope away from the winch bypasses the bottom of the pulley and is connected to a hanging member. A limit microswitch cooperating with the hanging member is also installed on the frame.

[0006] As a further improvement, the hanging member is fixed to the ceiling. A steel wire rope locking pin is vertically movably installed inside the hanging member. One end of the steel wire rope away from the winch is fixedly connected to the steel wire rope locking pin. A spring for pushing the steel wire rope locking pin to move upward is provided inside the hanging member.

[0007] As a further improvement, when the track beam rises to fit against the ceiling, the steel wire rope pulls the steel wire rope locking pin downward to touch the limit microswitch and compress the spring.

[0008] As a further improvement, the hanging member includes a top seat fixed to the ceiling. The top seat is in the shape of a circular tube with an open lower end. A spring base is threadedly connected inside the top seat. The spring base is in the shape of a circular tube with an open upper end and has an installation hole vertically penetrating through its bottom wall. The wire rope locking pin is vertically movably installed in the installation hole. An annular protrusion is provided on the outer side of the upper end of the wire rope locking pin. The upper end of the spring abuts against the annular protrusion, and the lower end abuts against the spring base.

[0009] As a further improvement, a threading hole is provided on the wire rope locking pin along its axial direction. The end of the wire rope away from the winch passes through the threading hole. A locking screw is screwed onto the wire rope locking pin for pressing the wire rope inside the threading hole.

[0010] As a further improvement, the two elevators are connected to the controller through aviation plugs. The remote control controls the operation of the two elevators through the controller.

[0011] As a further improvement, the track beam includes a cross beam extending horizontally. A track for installing curtains is fixedly installed at the bottom of the cross beam. The two ends of the cross beam are respectively installed with the elevators. Open slots are provided at the positions corresponding to the elevators on the top wall of the cross beam.

[0012] As a further improvement, the frame is fixedly installed inside the cross beam through bolts.

[0013] As a further improvement, an opening and closing system is also provided inside the track beam. The opening and closing system includes a driving wheel and a driven wheel respectively arranged at the two ends inside the track. An annular closed transmission rubber belt is sleeved on the outer sides of the driving wheel and the driven wheel. Two sliding carts are slidably installed inside the track between the driving wheel and the driven wheel. The two sliding carts are respectively fixedly connected to the transmission rubber belts on the opposite sides of the driving wheel. A plurality of curtain hanging pulleys are slidably installed inside the track outside the two sliding carts.

[0014] As a further improvement, an opening and closing motor for driving the driving wheel to rotate is installed inside the cross beam. A lithium battery pack for supplying power to the opening and closing motor is also fixedly installed inside the cross beam.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention controls the lifting of the track beam through a remote control, and the curtain can be conveniently disassembled and assembled without climbing high. The track beam of the present invention adopts an integrated design of the cross beam and the track, enhancing the stiffness and having a stronger load-bearing capacity. The elevator of the present invention is built into the track beam, making the structure more compact and more beautiful after installation. The lifter of the present invention is configured with a self-locking motor, which can make the track beam hover at any position; The hanging part of the present invention is equipped with a spring, and its reaction force makes the track beam fit tightly with the ceiling, and the track beam of the curtain will not shake when pulled; The present invention adopts an aviation plug design, which is convenient for plugging and unplugging. One set of controller and remote control can control multiple sets of curtains in the home; The present invention adopts an electronically controlled double-lifter design, which can conveniently adjust the track beam to maintain horizontal and lift; The opening and closing motor of the present invention is powered by a lithium battery pack, and there is no need to reserve a power socket around the window. Moreover, the lithium battery pack and the opening and closing motor are installed in the track beam, making the structure more compact and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention; Figure 2 is a schematic structural diagram of the lifter of Embodiment 1 of the present invention; Figure 3 is Figure 2 the sectional view taken along line A-A in; Figure 4 is a schematic structural diagram of the frame of Embodiment 1 of the present invention; Figure 5 is a schematic structural diagram of the winch of Embodiment 1 of the present invention; Figure 6 is a schematic structural diagram of the hanging part of Embodiment 1 of the present invention; Figure 7 is an exploded view of the hanging part of Embodiment 1 of the present invention; Figure 8 is a schematic diagram when the track beam of Embodiment 1 of the present invention rises to the top; Figure 9 is the control circuit diagram of the lifter of Embodiment 1 of the present invention; Figure 10 is a schematic structural diagram of Embodiment 2 of the present invention; Figure 11 is Figure 10 the partial enlarged view of; Figure 12 is an exploded view of the opening and closing system of Embodiment 2 of the present invention.

[0018] In the figure: 1 - hanging piece; 101 - top seat; 102 - wire rope locking pin; 103 - spring; 104 - spring base; 105 - locking screw; 106 - expansion bolt; 2 - track beam; 201 - cross beam; 202 - track; 203 - open slot; 3 - lifter; 301 - frame; 302 - pulley; 303 - dowel pin; 304 - limit microswitch; 305 - microswitch fixing bolt; 307 - frame fixing bolt; 308 - self-locking motor; 309 - winch; 310 - radial fixing screw; 311 - wire rope; 312 - axial fixing screw; 313 - support; 4 - aviation plug; 5 - controller; 6 - remote control; 7 - opening and closing system; 701 - opening and closing motor; 702 - lithium battery pack; 703 - driving wheel; 704 - drive rubber belt; 705 - driven wheel support; 706 - driven wheel; 707 - pulley; 708 - curtain hanging pulley. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: As Figures 1 to 9 shown, a liftable curtain rack includes a track beam 2 for installing curtains. The track beam 2 includes a cross beam 201. The cross beam 201 is a horizontally extending square tube, and a track 202 for installing curtains is welded or integrally formed at the bottom of the cross beam 201.

[0021] As Figures 2 to 5As shown in the figure, elevators 3 are respectively installed inside both ends of the crossbeam 201. The elevator 3 includes a frame 301, which is also in the shape of a square tube. The width of the frame 301 is the same as the width of the inner cavity of the crossbeam 201. In this embodiment, the frame 301 is fixedly installed on the bottom wall of the crossbeam 201 through frame fixing bolts 307, and the installation stability of the elevator 3 is higher. At the top of one end of the frame 301, a self-locking motor 308 is installed through bolts. The rotating shaft of the self-locking motor 308 extends downward and is fixedly installed with a winch 309 through a radial fixing screw 310. A steel wire rope 311 is wound around the winch 309. Through holes for one end of the steel wire rope 311 to pass through are provided on both the bushing of the winch 309 and the rotating shaft of the self-locking motor 308. An axial fixing screw 312 for pressing one end of the steel wire rope 311 is screwed on the rotating shaft of the self-locking motor 308 to prevent the steel wire rope 311 from falling off the winch 309. At the bottom wall of the other end of the frame 301, a U-shaped support 313 is welded and extends outside the top wall thereof. A pulley 302 is installed inside the support 313 through a dowel bolt 303. The axis of the pulley 302 extends horizontally. The pulley 302 is rotatably sleeved on the dowel bolt 303. One end of the steel wire rope 311 away from the winch 309 bypasses the bottom of the pulley 302 and is connected upward to the hanging member 1. A wire passing hole for the steel wire rope 311 to pass through is provided on the top wall of the support 313. A limit microswitch 304 cooperating with the hanging member 1 is also installed on the support 313 through a microswitch fixing bolt 305. A U-shaped slot for the steel wire rope 311 to pass through is provided on the reed of the limit microswitch 304. When the self-locking motor 308 rotates forward, it drives the winch 309 to wind up the steel wire rope 311, causing the corresponding end of the track beam 2 to rise; when the self-locking motor 308 rotates in reverse, it drives the winch 309 to release the steel wire rope 311, causing the corresponding end of the track beam 2 to descend.

[0022] As Figure 6 and Figure 7 shown, the hanging member 1 includes a top seat 101, which is in the shape of a circular tube with an open bottom end. A horizontally arranged mounting plate is integrally formed at the upper end of the top seat 101, and the mounting plate is fixed to the ceiling through expansion bolts 106. A spring base 104 is threadedly connected inside the top seat 101. The spring base 104 is in the shape of a circular tube with an open top end and a vertically penetrating mounting hole is provided on its bottom wall. A cylindrical steel wire rope locking pin 102 is vertically movably installed inside the mounting hole. A wire passing hole is provided at the lower end of the steel wire rope locking pin 102 along its axial direction. One end of the steel wire rope 311 away from the winch 309 is passed through the wire passing hole. A locking screw 105 for pressing the steel wire rope 311 inside the wire passing hole is screwed on the steel wire rope locking pin 102 to prevent the steel wire rope 311 from falling off the steel wire rope locking pin 102. An annular protrusion is integrally formed on the outer side of the upper end of the steel wire rope locking pin 102. A spring 103 for pushing it upward is sleeved on the outer side of the steel wire rope locking pin 102. The upper end of the spring 103 abuts against the annular protrusion, and the lower end abuts against the spring base 104.

[0023] At the position corresponding to the elevator 3 on the top wall of the crossbeam 201, an open slot 203 is provided to facilitate the installation of the elevator 3. As Figure 8 shown, when the track beam 2 rises to the top and fits against the ceiling, the hanging member 1 enters the inner cavity of the crossbeam 201 through the open slot 203, and the wire rope 311 pulls the wire rope locking pin 102 downward to touch the reed of the limit microswitch 304 and compress the spring 103.

[0024] Two sets of elevators 3 are connected to the controller 5 through aviation plugs 4. The remote controller 6 controls the operation of the two sets of elevators 3 through the controller 5. The remote controller 6 has buttons respectively marked with numbers 1-6. Specifically, the female head of the aviation plug 4 is connected to the self-locking motors 308 and limit microswitches 304 of the two sets of elevators 3 through wires, and the male head is connected to the controller 5.

[0025] The controller 5 includes a step-down module, a rectification module, a remote control and control module, and a motor stall protection module. The step-down module and the rectification module convert 220V alternating current into 24V direct current; the motor stall protection module automatically disconnects the power supply when the load is too large and the current rises beyond the normal range.

[0026] Figure 9 In the figure, K1-K6 are the relays of the remote control and control module in the controller 5, which correspond one-to-one with the 1-6 keys of the remote controller 6. KA1 and KA2 respectively correspond to the intermediate relays of the two sets of elevators 3, and SQ1 and SQ2 respectively correspond to the limit microswitches 304 of the two sets of elevators 3. M1 and M2 respectively correspond to the self-locking motors 308 of the two sets of elevators 3.

[0027] The control mode is an interlock mode. Press the 1 key, K1 is turned on, M1 rotates forward, and the end of the track beam 2 corresponding to M1 rises. Press any key to stop; press the 2 key, K2 is turned on, M1 rotates in reverse, and the end of the track beam 2 corresponding to M1 descends. Press any key to stop. Similarly, the 5th and 6th keys of the remote controller can control the lifting and lowering of the end of the track beam 2 corresponding to M2 to adjust the track beam 3 to be horizontal. Press the 3 key, K3 is turned on, the coil of KA1 is energized and attracted, the normally open contact of KA1 is turned on, and the normally closed contact is turned off. M1 and M2 rotate forward at the same time, and the track beam 2 rises as a whole. Press any key to stop; press the 4 key, K4 is turned on, the coil of KA2 is energized and attracted, the normally open contact of KA2 is turned on, and the normally closed contact is turned off. M1 and M2 rotate in reverse at the same time, and the track beam descends as a whole. Press any key to stop.

[0028] As Figure 8 and Figure 9As shown, when the track beam 2 rises to the top, the self-locking motors 308M1 and M2 at both ends of the track beam 2 continue to rotate. Under the tensile force of the steel wire rope 311 in the hanging member 1, the steel wire rope locking pin 102 moves downward, pressing the limit micro switches 304SQ1 and SQ2 until they are disconnected, and the self-locking motors 308M1 and M2 stop. At this time, the spring 103 is compressed, and its reaction force makes the track beam 2 fit tightly against the ceiling, so that the track beam 2 will not shake when opening and closing the curtain.

[0029] Embodiment 2: As Figures 10 to 12 shown, an opening and closing system 7 is further provided in the track beam 2. The opening and closing system 7 includes a driving wheel 703 and a driven wheel 706 respectively arranged at the left and right ends inside the track 202.

[0030] The opening and closing motor 701 for driving the driving wheel 703 to rotate is installed inside the left end of the cross beam 201 by screws. The motor shaft of the opening and closing motor 701 extends downward into the track 202, and the driving wheel 703 is fixedly installed on the motor shaft of the opening and closing motor 701; the lithium battery pack 702 and the opening and closing motor 701 are fixedly arranged side by side inside the end of the cross beam 201 outside the lifter 3. The output end of the lithium battery pack 702 is connected to the opening and closing motor 701 to supply power to the opening and closing motor 701. The input end of the lithium battery pack 702 is also connected to the controller 5 through the aviation plug 4. When the lithium battery pack 702 is out of power, the controller 5 charges the lithium battery pack 702.

[0031] A driven wheel support 705 is fixedly installed inside the right end of the cross beam 201 by screws. The bottom of the driven wheel support 705 is rotatably installed with a driven wheel 706 extending downward into the track 202 through a bearing. The axis of the driven wheel 706 is vertically arranged; a ring-shaped closed transmission rubber belt 704 is sleeved outside the driving wheel 703 and the driven wheel 706. Two sliding cars 707 are also slidably installed in the track 202 between the driving wheel 703 and the driven wheel 706. The two sliding cars 707 are respectively fixedly connected to the transmission rubber belt 704 on the opposite sides of the driving wheel 703, so that the transmission rubber belt 704 drives the two sliding cars 707 to move in opposite directions. The sliding car 707 and the transmission rubber belt 704 are connected by clamping or fixed by screws.

[0032] A number of curtain hanging pulleys 708 are slidably installed in the track 202 outside the two sliding cars 707. The two sliding cars 707 respectively correspond to a piece of curtain. The upper end of the curtain is hung on the corresponding sliding car 707 and a number of curtain hanging pulleys 708 outside the corresponding sliding car 707.

[0033] The opening and closing motor 701 is selected as an intelligent opening and closing motor, which is built-in with a signal receiving processor and can be paired with a remote control, a mobile phone, and a voice speaker to control the forward rotation, reverse rotation, and stroke of the opening and closing motor 701. When the opening and closing motor 701 operates, it drives the driving wheel 703 to rotate, thereby driving the transmission rubber belt 704 to operate. When the transmission rubber belt 704 operates, it drives two sliding carts 707 to approach or move away from each other along the track 202, realizing the opening and closing of the curtain.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A liftable curtain rack, characterized in that: It includes a track beam (2) for installing curtains. At both ends inside the track beam (2), lifters (3) are respectively installed. The lifter (3) includes a frame (301). On the frame (301), a winch (309) driven by a self-locking motor (308) is installed. A steel wire rope (311) is wound around the winch (309). On the frame (301), a pulley (302) with a horizontally extending axis is also rotatably installed. One end of the steel wire rope (311) away from the winch (309) bypasses the bottom of the pulley (302) and is connected to a hanging member (1). On the frame (301), a limit microswitch (304) cooperating with the hanging member (1) is also installed.

2. The liftable curtain rack according to claim 1, characterized in that: The hanging member (1) is fixed to the ceiling. A steel wire rope locking pin (102) is vertically movably installed inside the hanging member (1). One end of the steel wire rope (311) away from the winch (309) is fixedly connected to the steel wire rope locking pin (102). Inside the hanging member (1), a spring (103) for pushing the steel wire rope locking pin (102) to move upward is provided.

3. The liftable curtain rack according to claim 2, wherein: When the track beam (2) rises to fit against the ceiling, the steel wire rope (311) pulls the steel wire rope locking pin (102) to downwardly touch the limit microswitch (304) and compress the spring (103).

4. The liftable curtain rack according to claim 2, characterized in that: The hanging member (1) includes a top seat (101) fixed to the ceiling. The top seat (101) is in the shape of a circular tube with an open lower end. A spring base (104) is threadedly connected inside the top seat (101). The spring base (104) is in the shape of a circular tube with an open upper end and a mounting hole vertically penetrating through its bottom wall. The steel wire rope locking pin (102) is vertically movably installed in the mounting hole. An annular protrusion is provided on the outer side of the upper end of the steel wire rope locking pin (102). The upper end of the spring (103) abuts against the annular protrusion, and the lower end abuts against the spring base (104).

5. The liftable curtain rack according to claim 2, characterized in that: A wire threading hole is provided on the steel wire rope locking pin (102) along its axial direction. One end of the steel wire rope (311) away from the winch (309) passes through the wire threading hole. A locking screw (105) for pressing the steel wire rope (311) inside the wire threading hole is screwed on the steel wire rope locking pin (102).

6. The liftable curtain rack according to claim 1, wherein: Two groups of the lifters (3) are connected to a controller (5) through an aviation plug (4). A remote controller (6) controls the operation of two groups of the lifters (3) through the controller (5).

7. The liftable curtain rail according to claim 1, wherein: The track beam (2) includes a cross beam (201) extending horizontally. At the bottom of the cross beam (201), a track (202) for installing curtains is fixedly installed; at both ends inside the cross beam (201), the lifters (3) are respectively installed; an open slot (203) is provided at the position corresponding to the lifter (3) on the top wall of the cross beam (201).

8. The liftable curtain rack according to claim 7, characterized in that: The frame (301) is fixedly installed inside the cross beam (201) by bolts.

9. The liftable curtain rack according to claim 7, wherein: An opening and closing system (7) is further provided in the track beam (2). The opening and closing system (7) includes a driving wheel (703) and a driven wheel (706) respectively arranged at two ends inside the track (202). An annular closed transmission rubber belt (704) is sleeved outside the driving wheel (703) and the driven wheel (706). Two sliding carts (707) are further slidably installed in the track (202) between the driving wheel (703) and the driven wheel (706). The two sliding carts (707) are respectively fixedly connected to the transmission rubber belt (704) on opposite sides of the driving wheel (703). A plurality of curtain hanging pulleys (708) are slidably installed in the track (202) outside the two sliding carts (707).

10. The liftable curtain rack according to claim 9, wherein: An opening and closing motor (701) for driving the driving wheel (703) to rotate is installed in the cross beam (201), and a lithium battery pack (702) for supplying power to the opening and closing motor (701) is further fixedly installed in the cross beam (201).

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