Bidirectional clutch, hands-free driver and motorized curtain

Abstract

The utility model discloses a kind of two-way clutches, hand-automatic integrated driver and electric curtain, the two-way clutch includes clutch cover, first magnetic attraction piece, second magnetic attraction piece and connecting blocking piece;Connecting blocking piece has integrally arranged middle shaft part and cover part;Clutch cover is rotationally connected with the cover part of connecting blocking piece and is enclosed to form a containing cavity between the two, containing cavity inner wall is equipped with clamping groove;The middle shaft part of connecting blocking piece can be rotatably contained in containing cavity;First magnetic attraction piece is movably contained in containing cavity and moves in and out clamping groove, the side wall of the middle shaft part of connecting blocking piece is equipped with the tab for stirring first magnetic attraction piece;Second magnetic attraction piece is fixedly arranged in containing cavity and is movably magnetically attracted with first magnetic attraction piece.The two-way clutch of the utility model has the advantages of few components, compact structure.

Description

Technical Field

[0001] This utility model relates to the field of electric curtains, and in particular to a two-way clutch, a manual / automatic drive, and an electric curtain. Background Technology

[0002] To achieve dual-mode operation (electric and manual), existing electric blinds typically use a drive motor connected to the blind's transmission component via a clutch. This transmission component connects to the blind's roller, which contains a damping device (such as a coil spring). Chinese patent CN222879612U discloses a clutch comprising a clutch pin, a clutch sleeve, a first magnetic chuck, a second magnetic chuck, and a mounting base. The clutch pin is rotatably inserted into the mounting base and has a first extension and a second extension. The first extension connects to the motor, and the second extension is rotatably inserted into the clutch sleeve. One end of the clutch sleeve connects to the transmission component, and the other end connects to the mounting base. The clutch and its mounting base define a receiving cavity. A paddle is mounted on the clutch pin within the cavity, and a slot is provided on the clutch sleeve within the cavity. A first magnetic chuck is placed within the cavity, and a second magnetic chuck is positioned within the mounting base. When the drive motor is running, the paddle moves the first magnetic chuck into the slot, and the first magnetic chuck then limits the paddle, causing the clutch pin to rotate the clutch sleeve and transmission component, thus linking the drive motor and the transmission component—this is the electric drive mode. When the drive motor is stationary, the second magnetic chuck attracts the first magnetic chuck away from the slot, and the drive motor and transmission component are not linked. At this point, the winding tube can be manually driven—this is the manual drive mode. This clutch has many components and its structure is not compact.

[0003] In view of the above problems, it is necessary to study a more compact two-way clutch with fewer parts, as well as a manual / automatic drive and electric curtains with such a two-way clutch. Utility Model Content

[0004] The purpose of this invention is to provide a more compact bidirectional clutch with fewer parts, as well as a manual / automatic drive and an electric curtain with the bidirectional clutch.

[0005] To achieve the above objectives, the solution of this utility model is: A bidirectional clutch includes a clutch sleeve, a first magnetic attractor, a second magnetic attractor, and a connecting blocking member. The connecting blocking member has an integrally formed central shaft portion and a cover portion. The clutch sleeve and the cover portion of the connecting blocking member are rotatably connected and enclose a receiving cavity, the inner wall of which is provided with a slot. The central shaft portion of the connecting blocking member is rotatably accommodated in the receiving cavity. The first magnetic attractor is movably accommodated in the receiving cavity and moves in and out of the slot. The side wall of the central shaft portion of the connecting blocking member is provided with a paddle for actuating the first magnetic attractor. The second magnetic attractor is fixedly disposed in the receiving cavity and movably magnetically engages with the first magnetic attractor.

[0006] The first magnetic attractor has a spherical structure; the second magnetic attractor has a sheet-like structure.

[0007] The clutch sleeve is made of plastic and the second magnetic component is glued to the clutch sleeve; or, the second magnetic component is bonded to the clutch sleeve with glue.

[0008] A manual / automatic integrated drive includes a drive motor, a transmission component, and the aforementioned bidirectional clutch; the output shaft of the drive motor is connected to a connecting blocking component, and the transmission component is connected to a clutch sleeve.

[0009] The manual / automatic driver also includes a housing; the motor body of the drive motor is fixedly connected to the housing, and a mounting cavity for accommodating a bidirectional clutch is formed between the motor body of the drive motor and the housing; the transmission component rotatably passes through the end of the housing away from the drive motor.

[0010] The motor body of the drive motor is connected to the housing by connecting screws.

[0011] The clutch sleeve is provided with a guide hole, the output shaft of the drive motor passes through the central shaft of the connecting blocking member, and the output shaft of the drive motor is rotatably inserted into the guide hole.

[0012] The second magnetic attractor has a ring-shaped structure and surrounds the central shaft of the connecting blocking member.

[0013] The output shaft of the drive motor is locked to the connecting blocking component by locking screws.

[0014] The clutch sleeve is made of plastic, and the transmission component is bonded to the clutch sleeve with rubber.

[0015] An electric curtain includes a roller tube, a curtain fabric, a damping device, a first mounting base, a second mounting base, and a manual / automatic integrated driver as described above. The two ends of the roller tube are rotatably engaged with the first and second mounting bases, respectively. One end of the curtain fabric is connected to the roller tube. The damping device is disposed in the roller tube and is connected to both the roller tube and the first mounting base. The manual / automatic integrated driver is disposed in the roller tube, and its transmission component is connected to the roller tube. The motor body of the drive motor is connected to the second mounting base.

[0016] After adopting the above solution, the bidirectional clutch of this utility model includes a clutch sleeve, a first magnetic attraction component, a second magnetic attraction component, and a connecting blocking component. The number of parts is small, and the connecting blocking component can be integrated into the clutch pin and mounting seat of the existing clutch, making the bidirectional clutch structure of this utility model more compact. Attached Figure Description

[0017] Figure 1 Structural breakdown of the manual / automatic integrated driver of this utility model Figure 1 .

[0018] Figure 2 Structural breakdown of the manual / automatic integrated driver of this utility model Figure 2 .

[0019] Figure 3 This is a schematic diagram of the manual / automatic integrated driver of this utility model.

[0020] Figure 4 Cross-sectional view of the manual / automatic integrated driver of this utility model Figure 1 .

[0021] Figure 5 Cross-sectional view of the manual / automatic integrated driver of this utility model Figure 2 .

[0022] Figure 6 This is a schematic diagram of the structure of the electric curtain of this utility model.

[0023] Figure 7 This is a cross-sectional view of the electric curtain of this utility model.

[0024] Label Explanation: A. Roller tube; B. Curtain fabric; C. Damping device; D. First mounting base; E. Second mounting base. Manual / automatic drive F, Drive motor 1, motor body 11, output shaft 12, Transmission component 2, Two-way clutch 3, Receiving cavity 30, slot 301, Clutch sleeve 31, guide hole 311, First magnetic component 32 Second magnetic component 33 Connecting stop 34, central shaft 341, lever 3411, cover 342. Housing 4, mounting cavity 40, Connecting screw 5, 6 locking screws. Detailed Implementation

[0025] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0026] like Figures 1 to 7As shown, this utility model discloses an electric curtain, including a roller tube A, a curtain fabric B, a damping device C, a first mounting base D, a second mounting base E, and a manual / automatic drive F. Both ends of the roller tube A are rotatably engaged with the first mounting base D and the second mounting base E, respectively. One end of the curtain fabric B is connected to the roller tube A. The damping device C is disposed within the roller tube A and is connected to both the roller tube A and the first mounting base D. The specific structure of the damping device C is prior art and will not be described further here. The manual / automatic drive F is disposed within the roller tube A and includes a drive motor 1, a transmission component 2, and a two-way clutch 3. The two-way clutch 3 includes a clutch sleeve 31, a first magnetic suction component 32, a second magnetic suction component 33, and a connecting blocking component 34. The connecting blocking component 34 can be integrally injection molded and has an integrally formed central shaft. The clutch sleeve 31 and the cover part 342 of the connecting blocking member 34 are rotatably connected and enclosed to form a receiving cavity 30. The inner wall of the receiving cavity 30 is provided with a slot 301. The central shaft part 341 of the connecting blocking member 34 is rotatably accommodated in the receiving cavity 30. The first magnetic suction member 32 is movably accommodated in the receiving cavity 30 and moves in and out of the slot 301. The side wall of the central shaft part 341 of the connecting blocking member 34 is provided with a paddle 3411 for moving the first magnetic suction member 32. The second magnetic suction member 33 is fixedly set in the receiving cavity 30 and is movably magnetically attracted to the first magnetic suction member 32. The output shaft 12 of the drive motor 1 is connected to the connecting blocking member 34. The motor body 11 of the drive motor 1 is connected to the second mounting base E. The transmission member 2 is connected to the clutch sleeve 31. The transmission member 2 is also connected to the reel A. When the drive motor 1 is running, the paddle 3411 of the connecting blocking member 34 moves the first magnetic member 32 into the slot 301. The first magnetic member 32 then limits the paddle 3411 so that the connecting blocking member 34 can drive the clutch sleeve 31 and the transmission member 2 to rotate, thereby making the drive motor 1 and the transmission member 2 linked. When the drive motor 1 is not working, the second magnetic member 33 attracts the first magnetic member 32 away from the slot 301, and the drive motor 1 and the transmission member 2 are not linked.

[0027] As can be seen from the above, the bidirectional clutch 3 of this utility model includes a clutch sleeve 31, a first magnetic absorbing element 32, a second magnetic absorbing element 33, and a connecting blocking element 34. The number of parts is small, and the connecting blocking element 34 can be integrated into the clutch pin and mounting seat of the existing clutch, making the structure of the bidirectional clutch 3 of this utility model more compact.

[0028] In an embodiment of this utility model, the manual / automatic integrated driver F may further include a housing 4; the motor body 11 of the drive motor 1 is fixedly connected to the housing 4 and a mounting cavity 40 for accommodating the bidirectional clutch 3 is formed between the motor body 11 of the drive motor 1 and the housing 4; the motor body 11 of the drive motor 1 can be connected to the housing 4 by connecting screws 5; and the transmission member 2 rotatably passes through the end of the housing 4 away from the drive motor 1; the housing 4 can protect the bidirectional clutch 3.

[0029] In an embodiment of this utility model, the first magnetic suction member 32 may be in the form of a spherical structure, so that the first magnetic suction member 32 can smoothly enter and exit the slot 301; while the second magnetic suction member 33 is in the form of a sheet structure, and the second magnetic suction member 33 can be fixed to the clutch sleeve 31.

[0030] In this embodiment of the invention, the clutch sleeve 31 is made of plastic, and the transmission component 2 is glued to the clutch sleeve 31. This eliminates the need for connecting the transmission component 2 to the clutch sleeve 31 during assembly of the automatic / manual drive F, improving assembly efficiency. The second magnetic component 33 can also be glued to the clutch sleeve 31; however, it should be noted that the second magnetic component 33 can also be bonded to the clutch sleeve 31 with adhesive.

[0031] In an embodiment of this utility model, the clutch sleeve 31 is provided with a guide hole 311, the output shaft 12 of the drive motor 1 passes through the central shaft portion 341 of the connecting blocking member 34, and the output shaft 12 of the drive motor 1 is rotatably inserted into the guide hole 311; this arrangement makes the rotation of the connecting blocking member 34 more stable; while the second magnetic attracting member 33 has a ring structure and surrounds the central shaft portion 341 of the connecting blocking member 34, ensuring that the second magnetic attracting member 33 can stably attract the first magnetic attracting member 32.

[0032] In an embodiment of this utility model, the output shaft 12 of the drive motor 1 is locked to the connecting blocking member 34 by locking screws 6, so that the connection between the output shaft 12 of the drive motor 1 and the connecting blocking member 34 is simple and stable.

[0033] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A two-way clutch, characterized in that: It includes a clutch sleeve, a first magnetic chuck, a second magnetic chuck, and a connecting blocking component; The connecting blocking component has an integrally formed central shaft portion and a cover portion; The clutch sleeve and the cover of the connecting blocking member are rotatably connected and enclosed to form a receiving cavity, the inner wall of which is provided with a groove; the central shaft of the connecting blocking member is rotatably accommodated in the receiving cavity; The first magnetic attractor is movably housed in the receiving cavity and moves in and out of the slot. The side wall of the central shaft of the connecting blocking member is provided with a paddle for moving the first magnetic attractor. The second magnetic attractor is fixedly installed in the receiving cavity and engages with the first magnetic attractor in a movable magnetic attraction.

2. The bidirectional clutch as described in claim 1, characterized in that: The first magnetic attractor has a spherical structure; the second magnetic attractor has a sheet-like structure.

3. The bidirectional clutch as described in claim 1 or 2, characterized in that: The clutch sleeve is made of plastic and the second magnetic component is glued to the clutch sleeve; or, the second magnetic component is bonded to the clutch sleeve with glue.

4. A manual / automatic integrated driver, characterized in that: It includes a drive motor, a transmission component, and a bidirectional clutch as described in claim 1; the output shaft of the drive motor is connected to a connecting blocking component, and the transmission component is connected to a clutch sleeve.

5. The manual / automatic integrated driver as described in claim 4, characterized in that: It also includes a housing; the motor body of the drive motor is fixedly connected to the housing and a mounting cavity for accommodating a two-way clutch is formed between the motor body of the drive motor and the housing, and the transmission component rotatably passes through the end of the housing away from the drive motor.

6. The manual / automatic integrated driver as described in claim 4, characterized in that: The motor body of the drive motor is connected to the housing by connecting screws.

7. The manual / automatic integrated driver as described in claim 4, characterized in that: The clutch sleeve is provided with a guide hole, the output shaft of the drive motor passes through the central shaft of the connecting blocking member, and the output shaft of the drive motor is rotatably inserted into the guide hole.

8. The manual / automatic integrated driver as described in claim 7, characterized in that: The second magnetic attractor has a ring-shaped structure and surrounds the central shaft of the connecting blocking member.

9. The manual / automatic integrated driver as described in claim 4 or 7, characterized in that: The output shaft of the drive motor is locked to the connecting blocking component by locking screws.

10. The manual / automatic integrated driver as described in claim 4, characterized in that: The clutch sleeve is made of plastic, and the transmission component is bonded to the clutch sleeve with rubber.

11. An electric curtain, comprising a roller tube, a curtain fabric, a damping device, a first mounting base, and a second mounting base, wherein both ends of the roller tube are rotatably engaged with the first and second mounting bases respectively, one end of the curtain fabric is connected to the roller tube, and the damping device is disposed in the roller tube and connected to the roller tube and the first mounting base; characterized in that: It also includes the manual / automatic integrated driver as described in claim 4; the manual / automatic integrated driver is disposed in the winding tube, the transmission component of the manual / automatic integrated driver is connected to the winding tube, and the motor body of the drive motor is connected to the second mounting base.

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