CN212037122U - Curtain driving device - Google Patents

Abstract

The application relates to a curtain driving device which is used for driving a curtain to slide in a corresponding track, and comprises a shell, a roller assembly, a hook assembly and a control assembly, wherein the roller assembly is arranged in the shell, at least part of the roller assembly extends out of the shell, the hook assembly is driven by the roller assembly to slide in the track, the control assembly is in signal connection with the roller assembly, and the roller assembly comprises a clutch mechanism, a driving mechanism and an outer roller, the driving mechanism is used for driving the clutch mechanism to rotate, and the outer roller is arranged outside the clutch mechanism in a surrounding manner; the clutch mechanism is clamped with the outer roller. The utility model provides a clutch mechanism and outer gyro wheel joint among curtain drive arrangement's the wheel components to reduced outer gyro wheel size, and increased output torque, make curtain drive arrangement small, pleasing to the eye, convenient to use and user experience feel strong.

Description

Curtain driving device

Technical Field

The utility model relates to a curtain driving device.

Background

In order to ensure the quality of rest or to protect the privacy of the individual, people install curtains at the positions of the windows to obtain more comfortable and needed space. The traditional curtain needs to be manually pulled by a user and can be opened or closed only by moving from one side of the window to the other side, so that the operation is very inconvenient; later, a curtain machine which is opened and closed through remote control and electric operation appears, but the curtain machine has the defects of loose pull ropes, wire clamping, wire breaking and the like, and is inconvenient to use; at present, along with the appearance of intelligent (window) curtain, made things convenient for user's use, but the current drive arrangement who is used for driving (window) curtain gliding in the track is bulky, especially will be used for through structures such as screw fixed with track sliding fit's outer gyro wheel for drive arrangement poor stability and pleasing to the eye, influence user experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a curtain drive arrangement that outer roller size is little and output torque is big.

In order to achieve the above purpose, the utility model provides a following technical scheme: a curtain driving device is used for driving a curtain to slide in a corresponding track and comprises a shell, a roller assembly, a hook assembly and a control assembly, wherein the roller assembly is arranged in the shell and at least partially protrudes out of the shell, the hook assembly is driven by the roller assembly to slide in the track, the control assembly is in signal connection with the roller assembly, and the roller assembly comprises a clutch mechanism, a driving mechanism and an outer roller, the driving mechanism is used for driving the clutch mechanism to rotate, and the outer roller is arranged on the outer side of the clutch mechanism in a surrounding mode; the clutch mechanism is clamped with the outer roller.

Furthermore, one of the outer roller and the clutch mechanism is provided with a first clamping portion, and the other of the outer roller and the clutch mechanism is provided with a second clamping portion matched with the first clamping portion.

Further, first joint portion is for following outer gyro wheel or the clutch mechanism lengthways direction extends the first sand grip that sets up, second joint portion is for following outer gyro wheel or clutch mechanism lengthways direction extends the setting and with first sand grip shape assorted first recess.

The first protruding strip extends to the end along the longitudinal direction of the outer roller or the clutch mechanism, and the first groove extends to the end along the longitudinal direction of the outer roller or the clutch mechanism.

Further, the clutch mechanism includes a first clutch portion and a second clutch portion, and the first clutch portion and the second clutch portion are engaged with each other.

Furthermore, one of the first clutch part and the second clutch part is provided with a protruding part, and the other of the first clutch part and the second clutch part is provided with a concave part matched with the protruding part.

Further, the protruding portion protrudes outward from a side edge of the first clutch portion or the second clutch portion, and the recessed portion is recessed inward from a side edge of the first clutch portion or the second clutch portion.

Further, the protruding portion is a second protruding strip extending along the longitudinal direction of the first clutch portion or the second clutch portion, and the recessed portion is a second groove extending along the longitudinal direction of the first clutch portion or the second clutch portion.

Furthermore, the cross sections of the first protruding strips and the first grooves are rectangular or trapezoidal, and the cross sections of the second protruding strips and the second grooves are rectangular or trapezoidal.

Further, the protruding portion and the concave portion are distributed at intervals with the first clamping portion or the second clamping portion.

The beneficial effects of the utility model reside in that: the utility model provides a clutch mechanism and outer gyro wheel joint among curtain drive arrangement's the wheel components to reduced outer gyro wheel size, and increased output torque, make curtain drive arrangement small, pleasing to the eye, convenient to use and user experience feel strong.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a curtain driving apparatus according to the present invention.

Fig. 2 is a cross-sectional view of the curtain drive apparatus of the present invention taken along the lateral direction.

Fig. 3 is a schematic structural view of the roller assembly of fig. 1.

Fig. 4 is another structural schematic view of the roller assembly of fig. 1.

Fig. 5 is another structural schematic diagram of the scroll wheel assembly of fig. 1.

Fig. 6 is an exploded view of the scroll wheel assembly of fig. 1.

Fig. 7 is a cross-sectional view of the curtain drive apparatus of the present invention in the width direction.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 and 2, a curtain driving apparatus 100 according to a preferred embodiment of the present invention includes a housing 5, a control assembly 1 disposed in the housing 5, a roller assembly 2, and a hook assembly 3 connected to a curtain rail; wherein, roller assembly 2 and control assembly 1 electric connection, couple subassembly 3 slides for the (window) curtain track under roller assembly 2's drive. Wherein the control assembly 1 comprises a circuit board 11.

In this embodiment, at least one pair of hook assemblies 3 is provided, and at least one pair of hook assemblies 3 is arranged on both sides of the roller assembly 2 in a mirror symmetry manner to be in butt joint with the curtain rail and to be in sliding fit with the curtain rail. Each hook component 3 comprises a connecting piece and a pulley 31 connected with the connecting piece, the shell 5 is provided with a containing cavity, the connecting piece is arranged in the containing cavity, and the pulley protrudes out of the containing cavity to be matched with the curtain rail in a sliding way. Specifically, the accommodating cavity is arranged on the side part of the shell so as to reduce the whole volume of the whole device. Indeed, in other embodiments, the hook members 3 may be disposed at other positions of the housing, such as the top 51 of the shell 5, and the number of the hook members 3 may be other, which is not specifically limited herein, according to the actual situation.

The curtain driving device 100 further includes a power supply assembly 4 for providing power to the control assembly 1 and the roller assembly 2, and the power supply assembly 4 is electrically connected to the control assembly 1 and the roller assembly 2. In the present embodiment, the power supply assembly 4 is a battery 41.

In the height direction of the curtain driving device 100, the top 51 of the housing 5 has a notch 52, the roller assembly 2 is disposed in the notch 52 and at least partially protrudes out of the notch 52 to slidably fit with the curtain rail, and the sliding direction of the roller assembly 2 is the same as the sliding direction of the hook assembly 3, so as to better drive the hook assembly 3 to slide in the curtain rail.

Referring to fig. 3 to 5, the roller assembly 2 includes an outer roller 21 having a receiving cavity, a clutch mechanism 22 disposed in the receiving cavity and connected to the outer roller 21, and a driving mechanism 23, the driving mechanism 23 has an output shaft 2311, and the clutch mechanism 22 is connected to the output shaft 2311; the drive mechanism 23 is activated so that the output shaft 2311 rotates to rotate the clutch mechanism 22, which in turn rotates the outer roller 21. In the present embodiment, the driving mechanism 23 includes a motor 231, the motor 231 has an output shaft 2311, and the motor 231 may be a stepping motor 231, etc., and is not particularly limited herein, depending on the actual situation.

Referring to fig. 6 and 7, the clutch mechanism 22 includes a clutch housing 221 connected to the outer roller 21, a chassis 222 disposed in the clutch housing 221 and sleeved on the output shaft 2311, a pushing member 223 connected to the output shaft 2311 and driven by the output shaft 2311 to rotate relative to the chassis 222, and a metal fastener 224 magnetically connected to the chassis 222 and erected on the chassis 222, wherein the output shaft 2311 rotates to drive the pushing member 223 to rotate, and the pushing member 223 rotates until abutting against the metal fastener 224 to drive the clutch housing 221 to rotate. An inner cavity 2216 for accommodating the metal clamping piece 224 is arranged on the clutch housing 221, and the height of the inner cavity 2216 is greater than that of the metal clamping piece 224. The purpose of this is to: when the height of the inner cavity 2216 is greater than that of the metal clip 224, the metal clip 224 is prevented from being worn and the metal clip 224 is better abutted against the pushing piece 223. When the motor is not started, the metal clip 224 is located in the inner cavity 2216, and at this time, a gap exists between the metal clip 224 and the inner cavity 2216, that is, the metal clip 224 does not abut against the inner wall of the inner cavity 2216. After the motor 231 is started, the motor 231 rotates to drive the output shaft 2311 to rotate, and then the pushing member 223 is driven to rotate. The pushing part 223 rotates and moves to abut against the metal clamping piece 224 and pushes the metal clamping piece 224 to enable the metal clamping piece 224 to abut against the inner wall of the inner cavity 2216, and then the pushing part 223 abuts against the metal clamping piece 224. The pusher 223 pushes the metal dog 224 to push the clutch housing 221 to rotate, and the outer roller 21 rotates in turn, so that the clutch mechanism 22 is in an "on" state.

In this embodiment, the metal clip 224 is spherical and the inner cavity 2216 is a cylindrical cavity. The cylinder chamber cooperates with globular metal fastener 224 more easily, the flexibility ratio of globular metal fastener 224 is higher, make clutching mechanism 22 when the outage, when the user manually drives whole device, outer gyro wheel 21 rotates in order to drive clutch housing 221 and rotates, clutch housing 221 rotates in order to push away globular metal fastener 224 from inner chamber 2216, so that metal fastener 224 removes other positions in clutch housing 221, there is not the transmission of production of force between clutch housing 221 and the impeller 223 this moment, clutching mechanism 22 is in "from" state, thereby make the user can not appear the card phenomenon when the manual drive whole device when the outage, still can manually drive whole device in order to drive the (window) curtain, improve user experience.

The pushing member 223 has a pushing side part 2231, the pushing side part 2231 abuts against the metal clip 224 to push the clutch housing 221, and the pushing side part 2231 is disposed at an end of the pushing member 223 to increase torque. In the present embodiment, the cross-section of the pushing member 223 is in the shape of an ellipse or a diamond, i.e., the pushing side 2231 of the pushing member 223 has two, and correspondingly, the metal snaps 224 are provided with two. The purpose of this is to: after the push rod abuts against the metal clamping piece 224, the clutch shell 221 is stressed uniformly and rotates more stably, the overall stability of the clutch mechanism 22 is improved, and then the overall stability of the roller assembly 2 is improved. Indeed, in other embodiments, the cross-sectional shape of the pusher 223 may be other, and is not particularly limited herein, as the case may be.

The material of the metal latch 224 is one or a combination of iron, cobalt and nickel, and indeed, in other embodiments, the material of the metal latch 224 may be other, which is not specifically limited herein, depending on the actual situation.

Referring to fig. 5 and 6, the curtain driving device 100 further includes a turning sensing component for detecting a turning state of the roller assembly 2, specifically, the turning sensing component is used for detecting a turning state of the outer roller 21, and the turning state includes parameters such as a turning direction and a turning number, which are not limited herein according to actual situations. The steering sensing assembly includes a rotation angle marking unit 24 disposed on the outer roller 21 and a magnetic sensor 24 disposed outside the outer roller 21, and the rotation angle marking unit 24 is disposed inside the outer roller 21 in order to reduce the overall volume of the roller assembly 2 and increase the output torque. Indeed, in other embodiments, the rotation angle marking unit 24 may also be disposed on the outer circumferential surface of the outer roller 21, and is not particularly limited herein, depending on the actual situation.

Specifically, the corner marking unit 24 is disposed on the chassis 222 side. The clutch mechanism 22 further includes a support frame 53 connected to the chassis 222, the support frame 53 is disposed on the output shaft 2311, and the corner marking unit 24 is disposed on the support frame 53. The rotation angle marking unit 24 is a magnet, and correspondingly, the magnetic sensor 25 is a bipolar latching hall 25. The number of the corner marking units 24 is at least 2, in the embodiment, the number of the corner marking units 24 is 4, and the 4 corner marking units 24 are uniformly arranged on the supporting frame 53, so as to improve the output accuracy.

The magnetic sensor 25 is disposed below the rotation angle marking unit 24, a fixing plate 54 having one end fixedly coupled to the housing 5 is further disposed in the housing 5, the fixing plate 54 is disposed parallel to the axis of the output shaft 2311, and the magnetic sensor 25 is disposed on the fixing plate 54.

The corner marking unit 24 and the metal fastener 224 are respectively arranged on two sides of the chassis 222, and the positions of the corner marking unit 24 and the inner cavity 2216 correspond, so that the corner marking unit 224 is positioned in the inner cavity 2216 under the magnetic action of the sensing mechanism 24. Indeed, in other embodiments, the steering sensing assembly may be other, but it may result in the overall size of the scroll wheel assembly 2, thereby increasing the size and cost of the overall device. And, other steering sensing components tend to increase the power supply load of the power supply component 4.

As described above, the rotation angle marking unit 24 and the magnetic sensor 25 together constitute a steering sensing unit, and the magnetic sensor 25 detects the rotational displacement generated by the rotation angle marking unit 24, so that the magnetic sensor 25 outputs an orthogonal code signal, which is captured by the control unit 1.

In the present embodiment, the steering sensing assembly and the clutch mechanism 22 are both disposed on the output shaft 2311 of the motor 231, and more specifically, the rotation angle marking unit 24 is disposed on the clutch mechanism 22, and the magnetic sensor 25 is disposed outside the outer roller 21 and below the rotation angle marking unit 24, so that the purpose of the arrangement is as follows: the steering sensing assembly can detect the rotation direction of the outer roller 21 and send the detected rotation direction of the outer roller 21 to the control assembly 1, so that the control assembly 1 controls the motor 231 to continue rotating in the direction. Meanwhile, the space in the shell 5 is fully utilized to reduce the whole volume of the roller component 2, thereby achieving the purposes of reducing the volume of the whole device and reducing the cost. The rotation angle marking unit 24 is disposed close to the motor 231, and the clutch mechanism 22 is disposed away from the motor 231.

Referring to fig. 4 and 5, the clutch mechanism 22 is connected to the outer roller 21, and in order to reduce the size of the outer roller 21 and increase the output torque, in the embodiment, the clutch mechanism 22 is engaged with the outer roller 21, and more specifically, the clutch housing 221 is engaged with the outer roller 21. One of the outer roller 21 and the clutch housing 221 is provided with a first clamping portion 211, and the other one of the outer roller 21 and the clutch housing 221 is provided with a second clamping portion 2213 matched with the first clamping portion 211. The first clamping portion 211 is a first protruding strip 211 extending along the longitudinal direction of the outer roller 21 or the clutch housing 221, and the second clamping portion 2213 is a first groove 2213 extending along the longitudinal direction of the outer roller 21 or the clutch housing 221 and matching with the first protruding strip 211 in shape. In this embodiment, the first protruding strip 211 is disposed on the outer roller 21, and the first concave groove 2213 is disposed on the clutch housing 221. Indeed, in other embodiments, the first protruding strip 211 may be disposed on the clutch housing 221, and the first groove 2213 may be disposed on the outer roller 21, which is not specifically limited herein, depending on the actual situation. The clutch housing 221 and the outer roller 21 may be connected by bonding or welding, but it is inconvenient because they cannot be detached.

The first protruding strip 211 extends to the end along the longitudinal direction of the outer roller 21 or the clutch mechanism 221, and the first concave groove 2213 extends to the end along the longitudinal direction of the outer roller 21 or the clutch mechanism 221. In this embodiment, the outer roller 21 has a first end disposed close to the clutch housing 221 and a second end disposed far from the clutch housing 221, the first protrusion 211 extends to the first end along the longitudinal direction of the outer roller 21 to be better engaged with the clutch housing 221, and the corresponding first groove 2213 extends to a position corresponding to the first end along the longitudinal direction of the clutch mechanism 221. The roller assembly 2 further includes a support 232 disposed on the motor 231, wherein the support 232 is disposed on a side of the motor 231 away from the clutch mechanism 22. The outer roller 21 is provided with a slot (not shown) engaged with the support 232, and the slot is disposed at the second end to correspond to the support 232. When the outer roller 21 is engaged with the clutch housing 221, the supporting member 232 is also engaged with the engaging groove, so that the roller assembly 2 is more stable as a whole.

The clutch housing 221 includes a first clutch member 2211 and a second clutch member 2212, and the first clutch member 2211 is engaged with the second clutch member 2212. As described above, the first recess 2213 is disposed on the first and second clutch members 2211 and 2212. One of first clutch member 2211 and second clutch member 2212 is provided with a projection 2214, and the other of first clutch member 2211 and second clutch member 2212 is provided with a recess 2215 that mates with projection 2214. Protrusion 2214 is formed protruding outward from the side of first clutch 2211 or second clutch 2212, and recess 2215 is formed recessed inward from the side of first clutch 2211 or second clutch 2212. The protrusion 2214 is a second protrusion 2214 extending in the longitudinal direction of the first or second clutch 2211, 2212, and the recess 2215 is a second recess 2215 extending in the longitudinal direction of the first or second clutch 2211, 2212. In this embodiment, second protruding strip 2214 is disposed on first clutch 2211, and second groove 2215 is disposed on second clutch 2212. Indeed, in other embodiments, the second protruding strip 2214 can be disposed on the second clutch member 2212, and the second groove 2215 can be disposed on the first clutch member 2211, which is not limited herein.

The cross sections of the first protruding strips 211 and the first concave grooves 2213 are rectangular or trapezoidal, and the cross sections of the second protruding strips 2214 and the second concave grooves 2215 are rectangular or trapezoidal. The protrusion 2214 and the recess 2215 are spaced from the first clamping portion 211 or the second clamping portion 2213. As described above, the protrusion 2214 and the recess 2215 are spaced apart from the second fastening portion 2213.

To prevent the outer roller 21 from slipping when slidably engaged with the window covering rail, the outer roller 21 has a slip prevention structure 212. The anti-slip structure 212 is provided on the outer wall of the outer roller 21. In the present embodiment, the anti-slip structure 212 is a plurality of protrusions protruding outward from the outer wall surface of the outer roller 21, the plurality of protrusions are uniformly distributed on the outer wall surface of the outer roller 21, and the shape of the protrusions is any one of a thread shape, a spiral thread shape, a dot shape, a strip shape and a square shape. To further increase friction, the protrusions may be made of rubber or silicone. Indeed, in other embodiments, the anti-slip structure 212 may be formed by being recessed inward from the outer wall surface of the outer roller 21, and is not particularly limited herein, depending on the actual situation.

Or, the anti-slip structure 212 is sleeved on the outer roller 21, and at this time, the material of the anti-slip structure 212 is rubber or silica gel. Wherein the hardness of the rubber or silica gel material is 35HB-50 HB. In this embodiment, the hardness of the rubber or silicone material is 40HB, which is the best anti-slip effect and will not affect the overall operation of the curtain driving device 100.

In summary, the following steps: the utility model provides a clutch mechanism and outer gyro wheel joint among curtain drive arrangement's the wheel components to reduced outer gyro wheel size, and increased output torque, make curtain drive arrangement small, pleasing to the eye, convenient to use and user experience feel strong.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A curtain driving device is used for driving a curtain to slide in a corresponding track and is characterized by comprising a shell, a roller assembly, a hook assembly and a control assembly, wherein the roller assembly is arranged in the shell and at least partially protrudes out of the shell; the clutch mechanism is clamped with the outer roller.

2. The window curtain driving device as claimed in claim 1, wherein one of the outer roller and the clutch mechanism is provided with a first engaging portion, and the other of the outer roller and the clutch mechanism is provided with a second engaging portion engaged with the first engaging portion.

3. The window curtain driving device as claimed in claim 2, wherein the first engaging portion is a first protrusion extending along a longitudinal direction of the outer roller or the clutch mechanism, and the second engaging portion is a first groove extending along a longitudinal direction of the outer roller or the clutch mechanism and having a shape matching the first protrusion.

4. The window covering driving apparatus of claim 3, wherein the first rib extends to an end along a longitudinal direction of the outer roller or the clutch mechanism, and the first groove extends to an end along a longitudinal direction of the outer roller or the clutch mechanism.

5. The window covering driving apparatus of claim 3, wherein the clutch mechanism includes a first clutch portion and a second clutch portion, and the first clutch portion is engaged with the second clutch portion.

6. The window covering driving apparatus as claimed in claim 5, wherein one of the first clutch portion and the second clutch portion is provided with a protrusion, and the other of the first clutch portion and the second clutch portion is provided with a recess engaged with the protrusion.

7. The window curtain driving apparatus as claimed in claim 6, wherein the protrusion is formed to protrude outward from a side of the first clutch portion or the second clutch portion, and the recess is formed to be recessed inward from a side of the first clutch portion or the second clutch portion.

8. The window covering driving apparatus as claimed in claim 7, wherein the protrusion is a second protrusion extending along a longitudinal direction of the first engaging and disengaging portion or the second engaging and disengaging portion, and the recess is a second groove extending along a longitudinal direction of the first engaging and disengaging portion or the second engaging and disengaging portion.

9. The window covering driving apparatus as claimed in claim 8, wherein the first rib and the first groove have a rectangular or trapezoidal cross-section, and the second rib and the second groove have a rectangular or trapezoidal cross-section.

10. The window covering driving device as claimed in claim 6, wherein the protrusion and the recess are spaced apart from the first engaging portion or the second engaging portion.

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