Electric sunshade curtain provided with narrow and deep groove rope folding device

Abstract

The invention discloses an electric sunshade curtain provided with a narrow and deep groove rope folding device, which comprises a fixed bracket arranged at the front end and the rear end of a window frame, a main shaft is respectively sleeved and fixed on two sides of the bracket at the front end, and the main shaft is respectively sleeved with the rope folding device, a spring seat I, a torsion spring and a spring seat II; a cloth rolling pipe is sleeved on the spring seat II, a speed reducing motor is arranged in the cloth rolling pipe, and a driving wheel is sleeved and fixed on an output shaft of the speed reducing motor; rope passing wheels are sleeved and fixed on supports on two sides of the rear end, and steel wire ropes are tied at two ends of a traction rod at the tail end of the curtain cloth. A groove of an idler wheel, rotating around a main shaft, of the rope stacking device is a narrow deep groove, the width of the groove of the idler wheel is approximately equal to the diameter of a steel wire rope, the steel wire rope is wound in the radial direction of the groove of the idler wheel of the rope stacking device, and the steel wire rope is restrained by the groove width to be stacked and wound in the narrow deep groove of the idler wheel of the rope stacking device. Left-right synchronous tensioning of the curtain cloth is achieved, and the pipe diameter of the roller shutter is fine and attractive.

Description

Technical Field

[0001] The invention relates to an electric sunshade. Background Art

[0002] With the development of intelligent buildings, there are many kinds of electric sunshades used in skylights or under skylights, including FTS dual-motor electric tensioning canopy curtains, FSS spring electric tensioning canopy curtains, FCS wire-guided folding canopy curtains, etc. The main features of FSS spring electric tensioning canopy curtains are: a torsion spring mechanism is installed in the curtain reel tube at one end, a rope reel is installed on the other end of the long tube, and a tubular motor is installed in the tube. When the driving motor is used for sunshade, the curtain is pulled out to shade the sun, the rope reel reels the wire, and the torsion spring is rotated and tightened at the same time to tighten the curtain. For example, the patent (torsion reel differential canopy curtain, roller curtain) authorization announcement number CN102767328 B) is a typical solution for FSS electric sunshade. At present, FSS spring electric tensioning sunshades are used in many construction fields because they are more economical and beautiful, and have achieved good social benefits.

[0003] But the FSS spring electric tensioning sunshade also has some disadvantages: As the steel wire is wound on the reel roller along the axial direction of the roller, the steel wires on both sides are subjected to uneven force, and the wound steel wires will also be unevenly tight. The steel wires on both sides are not effectively controlled to be of equal length at the same time. After a period of use, it is common for the left and right sides of the curtain to be out of sync and damaged.

[0004] Moreover, due to the use of an outer tube and an inner tube, a spring between the inner and outer tubes, and a tubular motor inside the inner tube, the diameter of the tube of the device is obviously too thick. Summary of the invention

[0005] The object of the present invention is to provide an electric sunshade curtain with a narrow and deep groove rope stacker installed, in which the curtain fabric is synchronously tensioned on the left and right sides and the curtain tube diameter is fine.

[0006] The technical solution of the present invention is: An electric sunshade with a narrow and deep groove rope stacker is characterized by comprising a bracket fixedly mounted on the front and rear ends of a window frame; The left and right sides of the front bracket have the same structure, and are respectively fixed with a main shaft, on which a rope stacker, a spring seat I, a torsion spring and a spring seat II are mounted; the spring seat I is fixed to the rope stacker by an end screw, and the rope stacker and the spring seat I are in a form of rotating together on the main shaft; a cloth winding tube is mounted on the spring seat II, and the inner wall of the cloth winding tube is engaged with the spring seat II, and the cloth winding tube and the spring seat II are in a form of rotating together on the main shaft; the two ends of the torsion spring are respectively clamped and fixed to the spring seat I and the spring seat II; A reduction motor is arranged inside the cloth winding tube, and a driving wheel is mounted and fixed on the output shaft of the reduction motor. The inner wall of the cloth winding tube is engaged with the driving wheel, and the cloth winding tube and the driving wheel rotate together. The housing of the reduction motor is fixed at the end of one side of the main shaft. When the motor is driven, the driving wheel rotates the cloth winding tube, and the cloth winding tube drives the spring seat II to rotate, and the torsion spring is tightened or loosened. The left and right sides of the rear bracket have the same structure, both of which include a rope pulley fixed on the bracket; the two ends of the traction rod at the end of the curtain are tied with steel wire ropes; when the driving motor is used for sunshade, the curtain is stretched, and the steel wire rope passes around the rope pulley, and the cloth winding tube drives the spring seat II to rotate, which drives the torsion spring to rotate together, so that the spring seat I and the rope stacker rotate in the same direction, and the steel wire rope is tightened and wound in the groove of the roller of the rope stacker; The rope stacker includes a roller rotating around a main axis, the groove of the roller is a narrow and deep groove, the groove width is greater than or equal to the diameter of a steel wire rope, and the width can only accommodate one steel wire rope, and the groove depth can accommodate multiple layers of steel wire ropes; when the steel wire rope is wound, it is wound in the radial direction of the roller groove of the rope stacker, and the steel wire rope is constrained by the groove width and is superimposed and wound in the narrow and deep groove of the roller of the rope stacker; because the steel wire ropes are superimposed and wound, the steel wire ropes on both sides are always of equal length, and the two sides of the roller curtain cloth are always kept synchronously tensioned.

[0007] In order to further achieve the tensioning of the curtain in the sunshade state, the torsion spring must have a large torque after the motor stops in place in the sunshade state to tighten the wire rope, thereby tightening the curtain. For this reason, the torsion spring needs to be tensioned when installing the rolling curtain. Preparation before tensioning the torsion spring: Calculate the total length L of the required wire rope according to the opening stroke of the sunshade and the inner wheel diameter of the narrow and deep groove of the rope stacker, L>(opening stroke of the sunshade×2+narrow and deep wheel diameter d*π); According to the mechanical properties such as the weight of the sunshade cloth, the stiffness of the torsion spring, and the effective number of turns, the number of turns n required for pre-tightening is obtained through calculation and experimental testing; Method for tensioning the torsion spring: Roll the sunshade cloth completely on the cloth winding tube, tie one end of the wire rope with a length of L to the traction rod at the end of the cloth, and superimpose and wind the other end n+1 turns in the narrow and deep groove of the rope stacker; At this time, there is a certain distance between the wire rope and the rope pulley. By pulling the wire rope or rotating the rope stacker, the wire rope pre-wound in the rope stacker is pulled out, causing the wire rope to become longer, and the wire rope is clamped in the rope pulley groove; When the wire rope is pulled out, the rope stacker rotates, and the rotation of the rope stacker causes the torsion spring to generate torque, and the wire rope is connected to the roller curtain, and the roller curtain is tensioned. Make sure the pre-tensioning force meets the requirements and fix the spring seat I to the rope stacker with the end screws.

[0008] Furthermore, the tail of the planetary reduction motor is provided with a tail shaft, a magnetic ring is mounted and fixed on the shaft, and a detection circuit board is mounted and fixed on the terminal of the motor, which is used to detect the rotation speed of the motor and the travel position of the sunshade.

[0009] The present invention realizes synchronous tensioning of the curtain cloth on the left and right sides, and the diameter of the rolling curtain tube is fine and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0012] Figure 2 It is a schematic diagram of the decomposed structure of an embodiment of the present invention.

[0013] In the figure: 01 bracket; 02 rope stacker; 03 spring seat I; 04 torsion spring; 05 spring seat II; 06 cloth winding tube; 07 driving wheel; 08 reduction motor; 09 rolling curtain; 10 wire rope; 11 rope pulley. DETAILED DESCRIPTION

[0014] An electric sunshade with a narrow and deep groove rope stacker, comprising a bracket 01 fixedly mounted on the front and rear ends of a window frame; the left and right sides of the front bracket have the same composition structure, and are respectively fixed with a main shaft, on which a rope stacker 02, a spring seat I 03, a torsion spring 04 and a spring seat II 05 are mounted; the spring seat I is fixed to the rope stacker by an end screw, and the rope stacker and the spring seat I are in the form of rotating together on the main shaft; a cloth winding tube is mounted on the spring seat II, and the inner wall of the cloth winding tube and the spring seat II are engaged by a slot structure, and the cloth winding tube 06 and the spring seat II are in the form of rotating together on the main shaft; the two ends of the torsion spring are respectively clamped and fixed to the spring seat I and the spring seat II; A reduction motor 08 is provided inside the cloth winding tube, and a driving wheel 07 is mounted and fixed on the output shaft of the reduction motor. The inner wall of the cloth winding tube and the driving wheel are engaged through a slot structure, and the cloth winding tube and the driving wheel rotate together. The housing of the reduction motor is fixed at the end of one side of the main shaft. When the motor is driven, the driving wheel rotates the cloth winding tube, and the cloth winding tube drives the spring seat II to rotate. The left and right sides of the rear bracket have the same structure, both of which include a rope pulley 11 fixed on the bracket; the two ends of the traction rod at the end of the curtain are tied with a wire rope 10; when the driving motor is used for sunshade, the curtain is stretched, and the wire rope passes around the rope pulley, and the cloth winding tube drives the spring seat II to rotate, driving the torsion spring to rotate together, so that the spring seat I and the rope stacker rotate in the same direction, and the wire rope is tightened and wound in the groove of the roller of the rope stacker; The rope stacker includes a roller rotating around a main axis, the groove of the roller is a narrow and deep groove, the groove width is greater than or equal to the diameter of a steel wire rope, and the width can only accommodate one steel wire rope, and the groove depth can accommodate multiple layers of steel wire ropes; when the steel wire rope is wound, it is wound in the radial direction of the roller groove of the rope stacker, and the steel wire rope is constrained by the groove width and is superimposed and wound in the narrow and deep groove of the roller of the rope stacker; because the steel wire ropes are superimposed and wound, the steel wire ropes on both sides are always of equal length, and the two sides of the roller curtain 09 are always kept synchronously tensioned.

[0015] In order to further achieve the tensioning of the curtain in the sunshade state, the torsion spring must have a large torque after the motor stops in place in the sunshade state to tighten the steel wire rope and thus tighten the curtain. For this reason, the torsion spring needs to be tensioned when installing the roller blind. Preparation before tensioning the torsion spring: Calculate the total length L of the required steel wire rope according to the opening stroke of the sunshade and the inner wheel diameter of the narrow and deep groove of the rope stacker, L> (opening stroke of the sunshade × 2 + narrow and deep wheel diameter d*π); According to the mechanical properties such as the weight of the sunshade cloth, the stiffness of the torsion spring, and the effective number of turns, the number of turns n that need to be pre-tightened is obtained through calculation and experimental testing; Method of tensioning the torsion spring: Roll the sunshade cloth completely on the cloth winding tube, and tie one end of the steel wire rope with a length of L. On the traction rod at the end of the curtain, the other end is superimposed and wound n+1 times in the narrow and deep groove of the rope stacker; at this time, there is a certain distance between the wire rope and the rope pulley. By pulling the wire rope or rotating the rope stacker, the wire rope pre-wound in the 02 rope stacker is pulled out, causing the wire rope to become longer, and the wire rope is clamped in the 11 rope pulley groove; when the wire rope is pulled out, the 02 rope stacker rotates, and the rotation of the rope stacker causes the torsion spring to generate torque, and the wire rope is connected to the roller curtain, and the roller curtain is tensioned. Make sure that the pre-tensioning force meets the requirements, and fix the spring seat I to the rope stacker through the end screw.

[0016] Since the rope stacker and spring seat I rotate together on the main shaft, the cloth winding tube and spring seat II rotate together on the main shaft, the two ends of the torsion spring are respectively clamped and fixed on the spring seat I and the spring seat II; that is, the rolling up of the sunshade corresponds to the steel wire rope being pulled out in the rope stacker groove, and the extension of the sunshade corresponds to the steel wire rope being wound and retracted in the rope stacker groove; since the torsion spring has been tensioned, no matter whether the sunshade is rolled up or extended, the rotation of the cloth winding tube and the rope stacker are tensioned relative rotations, so the curtain cloth is always tensioned and does not sag.

[0017] When the roller blind is electrically driven for sunshade, the 08 reduction motor outputs torque to rotate through the 07 driving wheel, and the 07 driving wheel drives the 06 outer tube to rotate, and the 09 roller blind extends. At the same time, the 05 spring seat Ⅱ rotates synchronously. Since the spring seat Ⅰ03 and the spring seat Ⅱ05 are connected by the torsion spring 04, the 02 rope stacker is driven to rotate together. The 10 steel wire rope is tightened and wound in the 02 rope stacker, and the 09 roller blind is tightened to move. When the 09 roller blind is opened to the set position, it stops automatically, realizing the full opening and sunshade action of the roller blind.

[0018] When the electric drive roller blind is rolled up, the 08 reduction motor reverses, the 07 driving wheel drives the 06 outer tube to reverse, the 09 roller blind is retracted and rolled up, and the 10 steel wire rope in the rope stacking device slot is stretched; at the same time, the 06 outer tube drives the 05 spring seat Ⅱ to reverse, and because the torsion spring is tensioned, the torsion spring drives the spring seat Ⅰ and the 02 rope stacking device to reverse together, and the 10 steel wire rope in the rope stacking device slot is released. When the 09 roller blind is retracted to the set position, it stops automatically, realizing the rolling action of the roller blind.

[0019] Furthermore, the tail of the planetary reduction motor has a tail shaft, on which a magnetic ring is mounted and fixed, and a detection circuit board is mounted and fixed on the terminal of the motor, which is used to detect the current, speed and stroke position of the motor. The stroke self-learning function can be realized by detecting the circuit that increases the stroke and current when encountering resistance, and the traction rod of the hand-pulling or lifting curtain can also be realized to realize the functions of hand-pulling sunshade and hand-lifting to open the lighting.

Claims

1. An electric sunshade with a narrow and deep groove rope stacker, characterized by: It includes brackets fixedly mounted on the front and rear ends of the window frame; The left and right sides of the front bracket have the same structure, and are respectively fixed with a main shaft, on which a rope stacker, a spring seat I, a torsion spring and a spring seat II are mounted; the spring seat I is fixed to the rope stacker by an end screw, and the rope stacker and the spring seat I are in a form of rotating together on the main shaft; a cloth winding tube is mounted on the spring seat II, and the inner wall of the cloth winding tube is engaged with the spring seat II, and the cloth winding tube and the spring seat II are in a form of rotating together on the main shaft; the two ends of the torsion spring are respectively clamped and fixed to the spring seat I and the spring seat II; A reduction motor is arranged inside the cloth winding tube, and a driving wheel is mounted and fixed on the output shaft of the reduction motor. The inner wall of the cloth winding tube is engaged with the driving wheel, and the cloth winding tube and the driving wheel rotate together. The housing of the reduction motor is fixed at the end of one side of the main shaft. When the motor is driven, the driving wheel rotates the cloth winding tube, and the cloth winding tube drives the spring seat II to rotate. The left and right sides of the rear bracket have the same structure, both of which include a rope pulley fixed on the bracket; the two ends of the traction rod at the end of the curtain are tied with steel wire ropes; when the driving motor is used for sunshade, the curtain is stretched, and the steel wire rope passes around the rope pulley, and the cloth winding tube drives the spring seat II to rotate, which drives the torsion spring to rotate together, so that the spring seat I and the rope stacker rotate in the same direction, and the steel wire rope is tightened and wound in the groove of the roller of the rope stacker; The rope stacker comprises a roller rotating around a main axis, the groove of the roller is a narrow and deep groove, the groove width is greater than or equal to the diameter of a steel wire rope, and the width can only accommodate one steel wire rope, and the groove depth can accommodate multiple layers of steel wire ropes; when the steel wire rope is wound, it is wound in the radial direction of the roller groove of the rope stacker, and the steel wire rope is constrained by the groove width and is superimposed and wound in the narrow and deep groove of the roller of the rope stacker; because the steel wire ropes are superimposed and wound, the steel wire ropes on both sides are always of equal length, and the two sides of the roller curtain cloth are always kept synchronously tensioned; When installing the roller blind, the torsion spring needs to be tensioned; Preparation before tensioning the torsion spring: Calculate the total length L of the required wire rope according to the opening stroke of the sunshade and the inner diameter of the narrow and deep groove of the rope stacker, L>(opening stroke of the sunshade×2+narrow and deep wheel diameter d*π); According to the weight of the sunshade cloth, the stiffness of the torsion spring, and the effective number of turns, the number of turns n required for pre-tightening is calculated and tested by experimental tests; Method for tensioning the torsion spring: Roll the sunshade cloth completely on the cloth rolling tube, and put a length of L One end of the wire rope is tied to the traction rod at the end of the curtain, and the other end is superimposed and wound n+1 times in the narrow and deep groove of the rope stacker; at this time, there is a certain distance between the wire rope and the rope pulley. By pulling the wire rope or rotating the rope stacker, the wire rope pre-wound in the rope stacker is pulled out, causing the wire rope to become longer and the wire rope to be clamped in the rope pulley groove; when the wire rope is pulled out, the rope stacker rotates, and the rotation of the rope stacker causes the torsion spring to generate torque, and the wire rope is connected to the roller curtain, and the roller curtain is tensioned. Make sure that the pre-tensioning force meets the requirements, and fix the spring seat I to the rope stacker through the end screw.

2. The electric sunshade with a narrow and deep groove rope stacker according to claim 1 is characterized in that: The tail of the planetary reduction motor is provided with a tail shaft, on which a magnetic ring is mounted and fixed, and on the terminal of the motor a detection circuit board is mounted and fixed for detecting the rotation speed of the motor and the travel position of the sunshade.

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