A manual opening and closing electric curtain driving mechanism

Abstract

The invention discloses a manually opened and closed electric curtain driving mechanism, comprising a shell, a transmission mechanism and a reversing mechanism, wherein the transmission mechanism comprises a linkage shaft, a first gear, a second gear, a first bevel gear installed at the right end of the linkage shaft and a second bevel gear installed at the left end of the linkage shaft, two groups of reversing mechanisms are arranged in the shell, the reversing mechanism comprises a transmission shaft, a first stop wheel and a second stop wheel, the transmission shaft passes through a cylindrical sleeve, diamond blocks are installed on the sides of the first stop wheel and the second stop wheel, two groups of electromagnetic generators are symmetrically installed on the bottom of the shell, the reversing mechanism is installed on the electromagnetic generator, a spring is installed between the electromagnetic generator and the first stop wheel, a magnet is also installed at the bottom of the first stop wheel, and two output shafts are driven to rotate or stop independently through a single motor.

Description

[Technical field]

[0001] The invention relates to the technical field of curtains, and in particular to an electric curtain driving mechanism which can be opened and closed manually. [Background technology]

[0002] With the rapid development of science and technology, people's life concepts are gradually changing, various home appliances are also changing, and curtains are no exception. Electric curtains can be opened and closed by handheld remote control devices. In European and American countries, electric curtains have been widely used.

[0003] Patent document with application number 201720832164X discloses a lifting device for curtains, including: a motor and a transmission device, the motor and the wire winding wheel are connected by transmission, a steel wire is wound on the wire winding wheel, the steel wire is passed around an outer pulley, a slide groove is provided on one side of the outer pulley, an inner pulley is provided inside the slide groove, the same steel wire is wound between the inner pulley and the outer pulley, a worm is connected to the motor, a turbine is provided on the worm, one side of the motor is electrically connected to a control module through a connecting line, an information processor and a communication module are provided on the control module, the lifting device is provided with a remote controller, the information processor and the control module, the motor, the remote controller and the communication module are all electrically connected, the curtains can be remotely controlled to open and close, the device structure is simple and stable, not easy to be damaged, and the intelligent control makes it convenient and simple for people to use.

[0004] The above-mentioned curtain lifting device uses a motor and a worm gear to transmit the power, but the worm gear has a self-locking function, so the curtain cannot be opened manually. In addition, most curtains on the market are connected to the output shaft by a motor through a transmission mechanism. Due to the resistance of the motor itself, it is difficult for users to manually pull the curtain, which cannot meet people's living needs. [Summary of the invention]

[0005] The object of the present invention is to provide an electric curtain driving mechanism which can be opened and closed manually, and the problem that the electric curtain cannot be operated manually is solved by arranging a reversing mechanism in the electric curtain driving mechanism.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides an electric curtain driving mechanism that can be opened and closed manually, comprising a shell, a reversing mechanism and a speed stop slot, wherein two bosses are symmetrically arranged on the left inner side of the shell, and similarly, two bosses are symmetrically arranged on the right inner side of the shell, and the speed stop slot is installed on the boss, and the speed stop slot comprises two trapezoidal platforms, and the two trapezoidal platforms form a cavity, wherein the bottom surface of one trapezoidal platform faces the cavity, and the bottom surface of the other trapezoidal platform faces away from the cavity; two sets of reversing mechanisms are arranged in the shell, and the reversing mechanism comprises a transmission shaft, a first speed stop wheel and a second speed stop wheel, the first speed stop wheel and the second speed stop wheel are fixedly installed on the transmission shaft, and the first speed stop wheel Diamond blocks are installed on the sides of the speed wheel and the second speed stop wheel; when the center line of the diamond block is turned to the vertical direction of the bottom surface of the trapezoidal platform on the speed stop slot, the center line of the diamond block and the bottom surface of the trapezoidal platform are in the same plane; two groups of electromagnetic generators are symmetrically installed on the bottom of the shell, and a reversing mechanism is installed on the electromagnetic generator. A spring is installed between the electromagnetic generator and the first speed stop wheel, and the lower end of the transmission shaft is inserted into the electromagnetic generator through the spring. A sliding track is provided on the top of the electromagnetic generator, and the lower end of the spring is connected to a slider installed in the sliding track, and the upper end of the spring is connected to the bottom of the first speed stop wheel. A magnet is also installed at the bottom of the first speed stop wheel.

[0008] Preferably, it further comprises a motor installed in the housing, wherein the output shaft of the motor is connected to the first gear, the first gear is meshed with the second gear, and the second gear is installed on the linkage shaft.

[0009] Preferably, it also includes a transmission mechanism installed in the shell, the transmission mechanism includes a linkage shaft, a first gear, a second gear, a first bevel gear installed at the right end of the linkage shaft, and a second bevel gear installed at the left end of the linkage shaft, the first bevel gear is respectively meshed with the third bevel gear and the fourth bevel gear, and the second bevel gear is respectively meshed with the fifth bevel gear and the sixth bevel gear.

[0010] Preferably, a connecting frame is fixedly provided on the inner sides of the left and right sides of the shell, and a cylindrical sleeve is fixedly provided on the connecting frame. The interior of the cylindrical sleeve is hollow, and the third bevel gear and the fourth bevel gear are respectively installed on the upper and lower ends of the cylindrical sleeve on the right side, and the fifth bevel gear and the sixth bevel gear are respectively installed on the upper and lower ends of the cylindrical sleeve on the left side.

[0011] Preferably, the transmission shaft passes through the cylindrical sleeve, the first speed-stopping wheel is located below the cylindrical sleeve, and the second speed-stopping wheel is located above the cylindrical sleeve.

[0012] Preferably, a toothed block is provided at the upper end of the transmission shaft, two sets of output shafts are symmetrically mounted on the top of the housing through bearings, toothed grooves are provided in the output shafts, and the transmission shaft is connected to the output shafts through the cooperation of the toothed block and the toothed grooves.

[0013] The beneficial effects of the present invention are as follows: by providing a reversing mechanism in the electric curtain driving mechanism, the problem that the electric curtain cannot be manually operated is solved, and the curtain can be directly opened and closed manually.

Brief Description of the Drawings

[0014] Figure 1 A schematic diagram of a manual opening and closing electric curtain drive mechanism provided in Example 1;

[0015] Figure 2 A schematic diagram of the structure of the reversing mechanism provided in the first embodiment;

[0016] Figure 3 A schematic diagram of the structure of a first speed-stopping wheel provided in Example 1;

[0017] Figure 4 A schematic diagram of the structure of the second speed-stopping wheel provided in the first embodiment;

[0018] Figure 5 A schematic diagram of the structure of the speed stop slot provided in Example 1;

[0019] Figure 6 A front view of the speed stop slot provided in Example 1;

[0020] Figure 7 A top view of the speed stop slot provided in Example 1;

[0021] Figure 8 A schematic diagram of the structure of the transmission mechanism provided in Example 1;

[0022] Fig. 9 A schematic diagram of the structure of the housing provided in the first embodiment;

[0023] Fig.10 A schematic diagram of an output shaft provided in Embodiment 1;

[0024] Fig.11 A schematic diagram of a working state of the dual-output electric curtain driving mechanism provided in Example 1;

[0025] Fig.12 A schematic diagram of another working state of the dual-output electric curtain driving mechanism provided in the first embodiment;

[0026] Fig.13 A schematic diagram of another working state of the dual-output electric curtain driving mechanism provided in the first embodiment;

[0027] Fig.14 A schematic diagram of a state of the second speed-stopping wheel and the speed-stopping groove provided in the first embodiment;

[0028] Fig.15 for Fig.14 Stereoscopic image of

[0029] Fig.16 This is a schematic diagram of another state of the second speed-stopping wheel and the speed-stopping groove provided in the first embodiment.

[0030] Description of Reference Numerals

[0031] 1. Housing; 2. Motor; 3. First gear; 4. Second gear; 5. Linkage shaft; 6. First bevel gear; 7. Second bevel gear; 8. Third bevel gear; 9. Fourth bevel gear; 10. First speed stop wheel; 11. Fifth bevel gear; 12. Connecting frame; 13. Cylindrical sleeve; 14. Sixth bevel gear; 15. Boss; 16. Speed ​​stop slot; 17. Second speed stop wheel; 18. Transmission shaft; 19. Output shaft; 20. Electromagnetic generator; 21. Rhombus block; 22. Magnet; 23. Tooth block; 24. Trapezoidal table; 25. Spring; 26. Sliding track; 27. Tooth groove. [Specific implementation method]

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] The terms “first”, “second”, etc. that appear in the present invention are only used for the convenience of description to distinguish different components with the same name, and do not indicate a sequence or a primary or secondary relationship.

[0034] Embodiment 1

[0035] Figure 1 A schematic diagram of a manual opening and closing electric curtain driving mechanism provided in the first embodiment of the present invention, a manual opening and closing electric curtain driving mechanism, comprising a housing 1, a reversing mechanism and a speed stop slot 16, Figure 2 Two sets of reversing mechanisms are arranged in the housing 1 , and the reversing mechanisms include a transmission shaft 18 , a first speed-stopping wheel 10 and a second speed-stopping wheel 17 . The first speed-stopping wheel 10 and the second speed-stopping wheel 17 are fixedly mounted on the transmission shaft 18 .

[0036] Specifically, refer to Figure 3 and Figure 4 The sides of the first speed-stopping wheel 10 and the second speed-stopping wheel 17 are both installed with diamond blocks 21.

[0037] Combination Figure 1 , Figure 2 and Fig. 9Two groups of electromagnetic generators 20 are symmetrically installed on the inner bottom of the shell 1, and a reversing mechanism is installed on the electromagnetic generator 20. A spring 25 is installed between the electromagnetic generator 20 and the first stop wheel 10. The lower end of the transmission shaft 18 passes through the spring 25 and is inserted into the electromagnetic generator 20. A sliding track 26 is provided on the top of the electromagnetic generator 20. The lower end of the spring 25 is connected to a slider installed in the sliding track 26, and the upper end of the spring 25 is connected to the bottom of the first stop wheel 10. When the first stop wheel 10 rotates, the spring 25 connected to the first stop wheel 10 also rotates. A magnet is also installed at the bottom of the first stop wheel 10. The electromagnetic generator 20 can generate magnetic force and the generated magnetic force can attract or repel the magnet.

[0038] Next reference Fig. 9 Two bosses 15 are symmetrically arranged on the left inner side of the housing 1 . Similarly, two bosses 15 are symmetrically arranged on the right inner side of the housing 1 . A speed stop groove 16 is installed on the boss 15 .

[0039] Recombination Figure 5 , Figure 6 and Figure 7 The speed stop slot 16 includes two trapezoidal platforms 24, and the two trapezoidal platforms 24 form a cavity, wherein the bottom surface of one trapezoidal platform faces the cavity, and the bottom surface of the other trapezoidal platform faces away from the cavity.

[0040] refer to Fig.14 , Fig.15 and Fig.16 It can be understood that when the diamond block 21 rotates with the first speed stop wheel or the second speed stop wheel and passes through the vertical direction of the trapezoidal platform 24, the bottom surface of the trapezoidal platform and the bottom line of the diamond block are in the same plane, so that the diamond block 21 can enter the cavity of the speed stop groove 16.

[0041] Continue to refer Figure 1 A transmission mechanism is also installed in the housing 1, and the transmission mechanism includes a linkage shaft 5, a first gear 3, a second gear 4, a first bevel gear 6 installed at the right end of the linkage shaft 5, and a second bevel gear 7 installed at the left end of the linkage shaft 5. The first bevel gear 6 is meshed with the third bevel gear 8 and the fourth bevel gear 9 respectively, and the second bevel gear 7 is meshed with the fifth bevel gear 11 and the sixth bevel gear 14 respectively.

[0042] Combination Fig.12 A connecting frame 12 is fixedly provided on the inner sides of the left and right sides of the housing 1, and a cylindrical sleeve 13 is fixedly provided on the connecting frame 12. The cylindrical sleeve 13 is hollow inside, wherein the third bevel gear 8 is installed on the upper end of the cylindrical sleeve on the left, the fourth bevel gear 9 is installed on the lower end of the cylindrical sleeve on the left, the fifth bevel gear 11 is installed on the upper end of the cylindrical sleeve on the right, and the sixth bevel gear 14 is installed on the lower end of the cylindrical sleeve on the right.

[0043] Continue to refer Figure 1 The first stop wheel 10 is located below the cylindrical sleeve 13, the second stop wheel 17 is located above the cylindrical sleeve, and the transmission shaft 18 passes through the cylindrical sleeve. The transmission shaft 18 can move up and down in the cylindrical sleeve and can also rotate.

[0044] A motor 2 is also installed in the housing 1 , the output shaft of the motor 2 is connected to the first gear 3 , the first gear 3 is meshed with the second gear 4 , the second gear 4 is installed on the linkage shaft 5 , and the linkage shaft 5 transmits the power of the motor 2 .

[0045] Furthermore, a toothed block 23 is provided at the upper end of the transmission shaft 18, and two sets of output shafts 19 are symmetrically installed on the top of the housing 1 through bearings. A toothed groove 27 is provided in the output shaft 19, and the transmission shaft 18 is connected to the output shaft 19 through the cooperation of the toothed block 23 and the toothed groove 27.

[0046] like Fig.10 As shown, Fig.10 A schematic diagram of a working state of the dual-output electric curtain driving mechanism provided in Example 1, the first speed stop wheel 10 on the left is located below the speed stop slot 16 on the lower left, the second speed stop wheel position 10 on the left is located above the speed stop slot 16 on the upper left, the first speed stop wheel 10 on the right is located below the speed stop slot 16 on the lower right, and the second speed stop wheel position 10 on the right is located above the speed stop slot 16 on the upper right. At this time, the dual-output electric curtain driving mechanism is in an initial state. After the motor is started, the output shafts 19 on both sides do not rotate, and the spring 25 is in a free state.

[0047] Next Fig.11 When the cloth curtain and the gauze curtain need to be driven at the same time, start the motor 2 first. The motor 2 drives the transmission mechanism to work through the first gear 3 and the second gear 4, and then controls the driving electromagnetic generator 20 on the left to generate a magnetic force that repels the first speed-stopping wheel 10 on the left, so that the first speed-stopping wheel 10 on the left moves upward until it is tightly attached to the fifth bevel gear 11. At this time, the fifth bevel gear 11 drives the first speed-stopping wheel 10 on the left to rotate, and the transmission shaft 18 on the left rotates with the rotation of the first speed-stopping wheel 10 on the left, and the transmission shaft 18 on the left then drives the output shaft 19 on the left to rotate.

[0048] Similarly, the driving electromagnetic generator 20 on the right is controlled to generate a magnetic force that attracts the first speed-stop wheel 10 on the right, so that the first speed-stop wheel 10 on the right moves downward, and the second speed-stop wheel 17 moves downward at the same time until it is tightly attached to the fourth bevel gear 9. At this time, the fourth bevel gear 9 drives the second speed-stop wheel 17 on the right to rotate, and the transmission shaft 18 on the right rotates with the rotation of the second speed-stop wheel 17 on the right, and the transmission shaft 18 on the right then drives the output shaft 19 on the right to rotate. At this time, the rotation directions of the output shafts 19 on the left and right sides are consistent.

[0049] When you need to stop one of the curtains or gauze curtains, continue to refer to Fig.12 , Fig.12 Schematic diagram of another working state of the dual-output electric curtain driving mechanism provided in the first embodiment. The working state of the dual-output electric curtain driving mechanism is as follows: Figure 11 to Figure 12 The process is: keep the electromagnetic generator 20 on the left working, maintain the output shaft 19 on the left rotating, stop the electromagnetic generator 20 on the right working, and finally stop the output shaft 19 on the right rotating.

[0050] Specifically, the electromagnetic generator 20 on the right is controlled to stop working, so that it stops generating the magnetic force that attracts the first speed-stopping wheel 10 on the right. Under the action of the spring 25 on the right, the first speed-stopping wheel 10 on the right will move upward until the spring 25 on the right returns to a free state and then stops moving. While the first speed-stopping wheel 10 on the right moves, the second speed-stopping wheel 17 on the right synchronously performs a reset movement. During the upward reset process, the second speed-stopping wheel 17 on the right will pass through the speed-stopping slot 16 on the upper right side. Fig.14 , Fig.15 and Fig.16 , the resetting process of the second speed-stopping wheel 17 on the right side here is: the diamond block 21 on the rotating second speed-stopping wheel 17 rotates accordingly, and before the diamond block 21 is about to enter the speed-stopping groove 16, when the center line of the diamond block 21 turns to the bottom of the trapezoidal platform 24 on the speed-stopping groove 16, the center line of the diamond block 21 and the bottom surface of the trapezoidal platform 24 are in the same plane. At this time, if the center line of the diamond block 21 passes the bottom surface of the trapezoidal platform 24, the diamond block 21 will be stuck into the cavity of the speed-stopping groove 16 by the trapezoidal platform 24, and the cavity limits the rotation of the second speed-stopping wheel 17 to slow down and eventually stop it; if the center line of the diamond block 21 is not stuck into the cavity of the speed-stopping groove 16 but is stuck outside the speed-stopping groove 16, the trapezoidal platform 24 will also prevent the diamond block 21 from rotating, and eventually stop the second speed-stopping wheel 17.

[0051] The function of the speed stop slot is to stop the rotating first speed stop wheel or the second speed stop wheel after passing through the speed stop slot, so that the transmission shaft that is separated from the power support can be quickly stopped to realize the stopping action of the output shaft. In the reset state, since the transmission shaft 18 is not constrained in the rotation direction, the electric curtain can be easily pulled when the power is off or when it is desired to pull the curtain manually.

[0052] It can be understood that different combinations of the two sets of reversing mechanisms enable the electric curtains to have 9 different working states, which will not be introduced in detail here.

[0053] The above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A manually openable electric curtain drive mechanism, characterized in that: It includes a shell, a reversing mechanism and a speed-stopping groove. Two bosses are symmetrically arranged on the left inner side of the shell. Similarly, two bosses are symmetrically arranged on the right inner side of the shell. The speed-stopping groove is installed on the bosses. The speed-stopping groove includes two trapezoidal platforms. The two trapezoidal platforms form a cavity. The bottom surface of one trapezoidal platform faces the cavity, and the bottom surface of the other trapezoidal platform faces away from the cavity. Two sets of reversing mechanisms are arranged in the housing, and the reversing mechanisms include a transmission shaft, a first stop wheel and a second stop wheel, the first stop wheel and the second stop wheel are fixedly mounted on the transmission shaft, and diamond blocks are mounted on the sides of the first stop wheel and the second stop wheel; When the center line of the diamond block is turned to the vertical direction of the bottom surface of the trapezoidal platform on the speed stop groove, the center line of the diamond block and the bottom surface of the trapezoidal platform are in the same plane; Two groups of electromagnetic generators are symmetrically installed on the bottom of the shell, a reversing mechanism is installed on the electromagnetic generator, a spring is installed between the electromagnetic generator and the first stop wheel, the lower end of the transmission shaft passes through the spring and is inserted into the electromagnetic generator, a sliding track is provided on the top of the electromagnetic generator, the lower end of the spring is connected to a slider installed in the sliding track, the upper end of the spring is connected to the bottom of the first stop wheel, and a magnet is also installed at the bottom of the first stop wheel. It also includes a motor installed in the housing, wherein the output shaft of the motor is connected to the first gear, the first gear is meshed with the second gear, and the second gear is installed on the linkage shaft. The transmission mechanism also includes a transmission mechanism installed in the housing, the transmission mechanism includes a linkage shaft, a first gear, a second gear, a first bevel gear installed at the right end of the linkage shaft, and a second bevel gear installed at the left end of the linkage shaft, the first bevel gear is meshed with the third bevel gear and the fourth bevel gear respectively, and the second bevel gear is meshed with the fifth bevel gear and the sixth bevel gear respectively. The upper end of the transmission shaft is provided with a toothed block, and two sets of output shafts are symmetrically mounted on the top of the housing through bearings. The output shafts are provided with toothed grooves, and the transmission shaft is connected to the output shafts through the cooperation of the toothed block and the toothed grooves.

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