CN211093270U - Curtain electric control driving device - Google Patents

Abstract

The utility model discloses a curtain electric control driving device, which comprises a shell, a hook, an adjusting screw, a linkage mechanism, a driving wheel and a driving mechanism; the hook is used for hanging on the external hanging ring upside down; the driving wheel is pivoted on the shell and protrudes out of the top surface of the shell; the driving wheel is also used for being in frictional contact with the bottom surface of the external guide rail; the driving mechanism is arranged on the shell and is used for driving the driving wheel to rotate; the hook is arranged on the shell and can lift relative to the shell; the hook is in transmission connection with the adjusting screw rod through a linkage mechanism; the adjusting screw rod is pivoted on the shell and is in threaded fit with the shell; the adjusting screw is also used for linking the hook to lift through a linkage mechanism when rotating. The utility model discloses can be according to the (window) curtain guide rail of different dimensions, the position of the relative casing of adjustment couple ensures that the couple can stimulate the bottom surface that the drive wheel kept hugging closely the (window) curtain guide rail, and the suitability is stronger.

Description

Curtain electric control driving device

Technical Field

The utility model relates to an automatically controlled drive arrangement especially relates to a curtain automatically controlled drive arrangement.

Background

In the traditional technology, most curtains are opened and closed through manual operation, the traditional curtain is troublesome to operate and control, and the use comfort of users is poor; therefore, the automatic control of the curtain is an important component in the field of smart home, and in order to improve the use comfort of a user to the curtain, a motor-driven curtain capable of electrically controlling the curtain to open and close has been introduced in the market at present; the existing electric curtain mainly adopts the following types: as shown in fig. 1, an electric control driving device is installed on a guide rail 90 of the manual curtain; the electric control driving device comprises a shell, a driving wheel and a change gear 110 which are both arranged on the shell, wherein the change gear 110 is fixed on the shell; when the curtain is used, the curtain guide rail 90 is provided with the hanging groove 100 with a lower opening, the curtain is installed on the hanging ring of the curtain guide rail 90, the driving wheel is tightly attached to the bottom surface 91 of the curtain guide rail, the hanging wheel 110 extends into the hanging groove 100 and hooks the lower groove wall 101 of the hanging groove, at the moment, the hanging wheel 110 is just tensioned with the lower groove wall 101 of the hanging groove, the driving wheel is pulled to be kept tightly attached to the bottom surface 91 of the curtain guide rail, then the hanging wheel 110 is driven to move under the rotation of the driving wheel, the hanging wheel 110 pushes the hanging ring on the curtain guide rail 90 to move so as to drive the curtain to move, and the electric control operation; the mode can conveniently upgrade the traditional curtain into the electric control electric curtain, and has better application prospect.

However, the following problems still exist in the existing electrically controlled driving device in specific application: due to the size problem of the change gear, the applicable curtain guide rail is less; meanwhile, because the position of the change gear relative to the shell is fixed, when the change gear is suitable for curtain guide rails with different dimensions, the thicknesses of different curtain guide rails are different and the like, when the driving wheel is tightly attached to the bottom surface of the guide rail, the change gear can be too high or too low, the change gear cannot be hooked on a hanging wall of the curtain guide rail and keeps a tensioning state, namely the change gear cannot pull the driving wheel to keep tightly attached to the bottom surface of the curtain guide rail, the use of the electric control driving device is influenced, so that one electric control driving device can only be suitable for curtain guide rails with one dimension, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an automatically controlled drive device of a curtain, which adopts a hook to replace a change gear, can adjust the position of a relative shell of the hook according to curtain guide rails with different sizes and specifications, ensures that the hook can pull a drive wheel to keep clinging to the bottom surface of the curtain guide rail, and has stronger applicability.

The purpose of the utility model is realized by adopting the following technical scheme:

an electric control driving device for a curtain comprises a shell, a hook, an adjusting screw rod, a linkage mechanism, a driving wheel and a driving mechanism; the hook is used for hanging on an external hanging ring upside down; the driving wheel is pivoted on the shell and protrudes out of the top surface of the shell; the driving wheel is also used for being in frictional contact with the bottom surface of the external guide rail; the driving mechanism is arranged on the shell and is used for driving the driving wheel to rotate; the hook is arranged on the shell and can lift relative to the shell; the hook is in transmission connection with the adjusting screw rod through the linkage mechanism; the adjusting screw rod is pivoted on the shell and is in threaded fit with the shell; the adjusting screw is also used for linking the hook to lift through the linkage mechanism when rotating.

Further, the linkage mechanism comprises a first linkage block; the first linkage block is fixedly connected with the hook and is in threaded fit with the adjusting screw rod.

Further, the linkage mechanism comprises a second linkage block and an elastic element; the second linkage block is arranged on the shell and can lift relative to the shell; the second linkage block is in threaded connection with the adjusting screw rod and abuts against the hook downwards; two ends of the elastic element respectively abut against the hook and the shell; the elastic element is used for providing elastic stress for promoting the hook to move upwards and to be abutted against the second linkage block.

Further, the elastic element is a spring, and the spring is sleeved outside the adjusting screw rod.

Furthermore, a slot with a downward notch is formed in the bottom surface of the external guide rail; the slot extends along the extending direction of the external guide rail; the shell is also fixedly provided with a positioning insertion column, and a positioning sleeve is detachably sleeved outside the positioning insertion column; the locating sleeve is used for being matched and movably inserted into the slot of the external guide rail.

Furthermore, a groove with a circular longitudinal section is formed in the side surface of the driving wheel, and the central axis of the groove is overlapped with the central axis of the driving wheel; the groove wall of the groove is recessed towards the direction far away from the center of the groove to form a limiting groove; the driving mechanism comprises an adsorption plate, a cylindrical transmission block, a push rod and a rotating motor; the adsorption plate is arranged on the shell; the transmission block is magnetically adsorbed with the adsorption plate and is positioned in the groove; the body of the rotating motor is mounted on the shell; an output shaft of the rotating motor is fixedly connected with the push rod; the push rod is used for pushing the transmission block when rotating, so that the transmission block moves towards the direction close to the groove wall of the groove, and the transmission block is pushed into the limiting groove; the groove depth of the limiting groove is smaller than the radius of the transmission block, and the groove wall of the limiting groove is arc-shaped.

Furthermore, the adsorption plate is an iron sheet, and the transmission block is a magnet.

Furthermore, the driving wheel comprises a driving wheel body pivoted on the shell and an anti-skid sleeve fixedly sleeved outside the driving wheel body.

Furthermore, a driven wheel is pivoted on the shell; the driven wheel is pivoted on the shell and protrudes out of the top surface of the shell; the driven wheel is also used for being in frictional contact with the bottom surface of the external guide rail and is respectively arranged on two opposite sides of the shell with the driving wheel.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a set up the couple that can go up and down relative to the casing to adopt adjusting screw and link gear's cooperation, so, when the drive wheel was laminated with the bottom surface of curtain guide rail, according to the size of different curtain guide rails, through rotatory adjusting screw, adjusting screw drives the couple through link gear and rises or descends relative to the casing, can adjust the couple to suitable position, make the couple just in time hang on the outside link and keep taut state, at this moment, couple pulling drive wheel keeps hugging closely the bottom surface of curtain guide rail; therefore, the hanging wheel is replaced by the hook, the size requirement on the hanging groove of the curtain guide rail is eliminated, the position of the hook can be adjusted according to curtain guide rails with different sizes, and the applicability is strong.

Drawings

Fig. 1 is a schematic structural diagram of a conventional electrically-controlled driving device;

FIG. 2 is a schematic structural view of the electrically controlled driving device of the present invention;

fig. 3 is a second schematic structural view of the electrically controlled driving device of the curtain of the present invention;

fig. 4 is a side sectional view of the electric control driving device of the curtain of the present invention (the first embodiment of the linkage mechanism);

fig. 5 is a side sectional view of the electric control driving device of the curtain of the present invention (embodiment two of the linkage mechanism);

fig. 6 is a schematic view of the split structure of the curtain electric control driving device of the present invention;

fig. 7 is a front sectional view of the electric control driving device of the curtain of the present invention.

In the figure: 10. a housing; 20. hooking; 30. adjusting the screw rod; 40. a linkage mechanism; 41. a second linkage block; 42. an elastic element; 43. a first linkage block; 50. a positioning sleeve; 60. a drive wheel; 61. a limiting groove; 62. a drive wheel body; 63. an anti-slip sleeve; 70. a drive mechanism; 71. an adsorption plate; 72. a transmission block; 73. a push rod; 74. a rotating electric machine; 80. a driven wheel; 90. a guide rail; 91. a bottom surface of the guide rail; 92. hanging a ring; 100. a suspension groove; 101. a lower tank wall of the suspension tank; 110. a change gear.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

2-6, the electrically controlled curtain driving device comprises a housing 10, a hook 20, an adjusting screw 30, a linkage mechanism 40, a driving wheel 60 and a driving mechanism 70; the hook 20 is used for hanging on an external hanging ring 92 in an inverted mode; the driving wheel 60 is pivoted on the housing 10 and protrudes from the top surface of the housing 10, so as to ensure that the driving wheel 60 can be attached to the external guide rail 90; the drive wheel 60 is also adapted to be in frictional contact with the bottom surface 91 of the outer rail; the driving mechanism 70 is mounted on the housing 10 and is used for driving the driving wheel 60 to rotate; the hook 20 is mounted on the housing 10 and can be lifted relative to the housing 10; the hook 20 is in transmission connection with the adjusting screw 30 through the linkage mechanism 40; the adjusting screw 30 is pivoted on the shell 10; the adjusting screw 30 is also used for linking the hook 20 to lift through the linkage mechanism 40 when rotating, namely, the adjusting screw 30 is linked to the hook 20 to lift through the linkage mechanism 40 when rotating in one direction, and is linked to the hook 20 to lift through the linkage mechanism 40 when rotating in the opposite direction; the adjusting screw 30 is threadedly engaged with the housing 10, so that when the adjusting screw 30 is not externally driven to rotate, the adjusting screw 30 is fixed on the housing 10, and at this time, the relative position of the hook 20 and the housing 10 is fixed, i.e., the hook 20 and the housing 10 are kept stationary.

On the basis of the structure, when the curtain electric control driving device is used, the driving wheel 60 is attached to the bottom surface 91 of the external guide rail, the adjusting screw rod 30 is rotated according to actual conditions, at the moment, the force transmission is realized between the adjusting screw rod 30 and the linkage mechanism 40, then the linkage mechanism 40 is linked with the hook 20 to ascend or descend, so that the position of the hook 20 relative to the shell 10 is adjusted, as shown in the state of figures 2 to 3, the linkage mechanism 40 is linked with the hook 20 to descend relative to the shell 10, so that the hook 20 can be adjusted to a proper position, the hook 20 can be hung on the external hanging ring 92 and kept in a tensioning state, at the moment, the hook 20 pulls the driving wheel 60 to be kept tightly attached to the bottom surface 91 of the curtain guide rail, therefore, the hook 20 is adopted to replace a hanging wheel, the size requirement on a hanging groove of the curtain guide rail 90 is eliminated, and the position of the hook 20 can be adjusted according, the applicability is strong; then, the driving mechanism 70 drives the driving wheel 60 to rotate, at this time, under the action of friction force between the driving wheel 60 and the external guide rail, the driving wheel 60 moves along the external guide rail 90 and drives the external hanging ring 92 hooked with the hook 20 to move, and when the external hanging ring 92 moves, the other external hanging rings 92 on the curtain guide rail 90 are pushed to move, thereby realizing the opening and closing of the electrically controlled driving curtain.

Specifically, the linkage mechanism 40 may adopt the following two embodiments, in the first embodiment, the linkage mechanism 40 includes a first linkage block 43; the first linkage block 43 is fixedly connected with the hook 20 and is in threaded fit with the adjusting screw 30; therefore, when the adjusting screw 30 is rotated, at this time, due to the threaded fit between the first linkage block 43 and the adjusting screw 30, the hook 20 is driven to ascend and descend when the first slider ascends and descends relative to the adjusting screw 30, that is, the adjusting screw 30 ascends and descends through the linkage of the first linkage block 43 with the hook 20.

In the second embodiment, the linkage mechanism 40 includes a second linkage block 41 and an elastic member 42; the second linkage block 41 is arranged on the shell 10 and can be lifted relative to the shell 10; the second linkage block 41 is in threaded fit with the adjusting screw 30 and abuts against the hook 20 downwards; the two ends of the elastic element 42 respectively abut against the hook 20 and the shell 10; the elastic element 42 is used for providing elastic stress for promoting the hook 20 to move upwards and to be butted against the second linkage block 41; when the hook 20 is used, when the hook 20 needs to be lifted, the adjusting screw 30 is rotated to enable the second linkage block 41 to move upwards relative to the shell 10, and at the moment, the hook 20 is pushed upwards under the pushing of the elastic element 42, so that the lifting of the hook 20 is realized; when the hook 20 needs to be lowered, the adjusting screw 30 is rotated to move the second linkage block 41 downward relative to the housing 10, and at this time, the second linkage block 41 pushes the hook 20 to compress the elastic element 42, so that the hook 20 is lowered; this arrangement facilitates replacement of the various components.

More specifically, the elastic element 42 is a spring, and the spring is sleeved outside the adjusting screw 30, so that the spring is mounted without arranging other components, and the structure is simplified; moreover, the adjusting screw 30 can prevent the spring from being excessively bent, and prevent the spring from being excessively bent and broken; the springs may also be resilient plates, posts, etc.

When the hook 20 and the external hanging ring 92 are excessively tightened, the whole housing 10 is inclined away from the external guide rail 90, please refer to fig. 5, that is, inclined in the left-right direction in fig. 5, in order to avoid this situation, preferably, the bottom surface 91 of the external guide rail is provided with a slot with a downward notch; the slot extends in the direction of extension of the outer rail 90; a positioning insertion column is also fixed on the shell 10, and a positioning sleeve 50 is detachably sleeved outside the positioning insertion column; the positioning sleeve 50 is used for matching and movably inserted in the slot of the external guide rail 90; so, through the cartridge of position sleeve 50 in the slot, avoid casing 10 to lean out, and the slot extends along the extending direction of outside guide rail 90, avoids when casing 10 moves along outside guide rail 90, and position sleeve 50 causes the hindrance to its motion.

The above-mentioned position sleeve 50 is detachable, so, at the outside guide rail 90 to different dimensions, can change the position sleeve 50 of different thickness according to the width of slot, or choose to set up a plurality of position sleeves 50, so that the total thickness of position sleeve 50 just matches with the slot width.

The above-mentioned drive mechanism 70 may employ an existing rotary motor 74, a rotary hydraulic cylinder, or the like; when the rotary motor 74 is used, the body of the rotary motor 74 is fixed to the housing 10, and the output shaft of the rotary motor 74 is drivingly connected to the drive wheel 60.

In order to realize free switching between electric operation and manual operation, it is preferable that a groove with a circular longitudinal section is formed on the side surface of the driving wheel 60; the central axis of the groove coincides with the central axis of the drive wheel 60; the groove wall of the groove is recessed towards the direction far away from the center of the groove to form a limiting groove 61; the driving mechanism 70 includes an adsorption plate 71, a transmission block 72, a push rod 73 and a rotary motor 74; the adsorption plate 71 is mounted on the housing 10; the transmission block 72 and the adsorption plate 71 are magnetically adsorbed and positioned in the groove; thus, the transmission block 72 is mounted on the adsorption plate 71 and can move in any direction relative to the adsorption plate 71 under the action of external force; the body of the rotary motor 74 is mounted on the housing 10; the output shaft of the rotating motor 74 is fixedly connected with the push rod 73; the push rod 73 is used for pushing the transmission block 72 when rotating, so that the transmission block 72 moves towards the direction close to the groove wall of the groove, and the transmission block 72 is pushed into the limit groove 61; the limiting groove 61 is arranged such that when the push rod 73 does not push the transmission block 72 and the driving wheel 60 rotates under the external force, the transmission block 72 can be disengaged from the limiting groove 61; specifically, the depth of the limiting groove 61 is smaller than the radius of the transmission block 72, and the groove wall of the limiting groove 61 is arc-shaped.

On the basis of the above structure, when electric driving is required, the output shaft of the rotating motor 74 drives the push rod 73 to rotate along the direction a shown by the arrow in fig. 7 (or to move along the direction opposite to the direction a shown by the arrow), the push rod 73 rotates to the position abutting against the transmission block 72, and the transmission block 72 is continuously pushed under the driving of the rotating motor 74, at this time, the push force of the push rod 73 makes the transmission block 72 overcome the adsorption force of the adsorption plate 71, and simultaneously, referring to fig. 7, after overcoming the adsorption force of the adsorption plate 71, as can be known from force analysis, the transmission block 72 is still subjected to the thrust F shown in fig. 7, at this time, under the action of the thrust F, the transmission block 72 moves towards the direction close to the groove wall, and then the transmission block 72 enters the limiting groove 61; the push rod 73 continuously pushes the transmission block 72, the transmission block 72 is extruded to press the transmission block 72 in the limiting groove 61, the transmission block 72 is stably positioned in the limiting groove 61, then the transmission block 72 continuously moves along with the push rod 73, the transmission block 72 pushes the groove wall of the limiting groove 61 when moving, the driving wheel 60 is driven to rotate, and the electric control driving of the driving wheel 60 is realized; when manual driving is needed, the curtain is pulled, the curtain drives the shell 10 to move and further drives the driving wheel 60 to rotate along the direction shown by an arrow A in figure 7, at the moment, the driving block 72 is not pressed in the limiting groove 61 under the thrust of the push rod 73, then along with the continuous rotation of the driving wheel 60, the groove wall of the limiting groove 61 pushes the driving block 72, and the driving block 72 is subjected to the adsorption force of the adsorption plate 71, namely the resistance force of the adsorption plate 71, so, along with the movement of the driving wheel 60, the driving block 72 moves towards the groove opening and along the arc-shaped groove wall of the limiting groove 61, and because the groove depth of the limiting groove 61 is smaller than the radius of the driving block 72, at the moment, the driving block 72 can be separated from the limiting groove 61 under the pushing of the limiting groove 61, and because the driving block 72 is separated from the limiting groove 61, the driving wheel 60 does not hinder the rotation of the driving wheel 60 due to the blocking effect of the push rod, thereby realizing manual operation.

Specifically, the adsorption plate 71 is an iron sheet, and the transmission block 72 is a magnet; alternatively, the adsorption plate 71 is a magnet and the transmission block 72 is an iron block.

To achieve the friction of the outer guide rail 90 of the driving wheel 60, preferably, the driving wheel 60 includes a driving wheel body 62 pivoted on the housing, and an anti-slip sleeve 63 fixedly sleeved outside the driving wheel body 62, and the friction force is ensured by the anti-slip sleeve 63; the anti-slip sleeve 63 can be a rubber sleeve or a rubber sleeve with anti-slip cross-shaped surface.

Specifically, the housing 10 is further pivoted with a driven wheel 80; the driven wheel 80 is pivoted on the shell 10 and protrudes out of the top surface of the shell 10; the driven wheel 80 is also adapted to be in frictional contact with the bottom surface 91 of the outer guide rail and is spaced apart from the driving wheel 60 on opposite sides of the housing 10 for more stable movement.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (9)

1. An automatically controlled drive arrangement of (window) curtain which characterized in that: comprises a shell, a hook, an adjusting screw, a linkage mechanism, a driving wheel and a driving mechanism; the hook is used for hanging on an external hanging ring upside down; the driving wheel is pivoted on the shell and protrudes out of the top surface of the shell; the driving wheel is also used for being in frictional contact with the bottom surface of the external guide rail; the driving mechanism is arranged on the shell and is used for driving the driving wheel to rotate; the hook is arranged on the shell and can lift relative to the shell; the hook is in transmission connection with the adjusting screw rod through the linkage mechanism; the adjusting screw rod is pivoted on the shell and is in threaded fit with the shell; the adjusting screw is also used for linking the hook to lift through the linkage mechanism when rotating.

2. An electrically controlled drive device for window covering according to claim 1, characterized in that: the linkage mechanism comprises a first linkage block; the first linkage block is fixedly connected with the hook and is in threaded fit with the adjusting screw rod.

3. An electrically controlled drive device for window covering according to claim 1, characterized in that: the linkage mechanism comprises a second linkage block and an elastic element; the second linkage block is arranged on the shell and can lift relative to the shell; the second linkage block is in threaded connection with the adjusting screw rod and abuts against the hook downwards; two ends of the elastic element respectively abut against the hook and the shell; the elastic element is used for providing elastic stress for promoting the hook to move upwards and to be abutted against the second linkage block.

4. An electrically controlled drive device for window covering according to claim 3, characterized in that: the elastic element is a spring, and the spring is sleeved outside the adjusting screw rod.

5. An electrically controlled drive device for window covering according to claim 1, characterized in that: the bottom surface of the external guide rail is provided with a slot with a downward notch; the slot extends along the extending direction of the external guide rail; the shell is also fixedly provided with a positioning insertion column, and a positioning sleeve is detachably sleeved outside the positioning insertion column; the locating sleeve is used for being matched and movably inserted into the slot of the external guide rail.

6. An electrically controlled drive device for window covering according to claim 1, characterized in that: a groove with a circular longitudinal section is formed in the side surface of the driving wheel, and the central axis of the groove is superposed with the central axis of the driving wheel; the groove wall of the groove is recessed towards the direction far away from the center of the groove to form a limiting groove; the driving mechanism comprises an adsorption plate, a cylindrical transmission block, a push rod and a rotating motor; the adsorption plate is arranged on the shell; the transmission block is magnetically adsorbed with the adsorption plate and is positioned in the groove; the body of the rotating motor is mounted on the shell; an output shaft of the rotating motor is fixedly connected with the push rod; the push rod is used for pushing the transmission block when rotating, so that the transmission block moves towards the direction close to the groove wall of the groove, and the transmission block is pushed into the limiting groove; the groove depth of the limiting groove is smaller than the radius of the transmission block, and the groove wall of the limiting groove is arc-shaped.

7. An electrically controlled drive device for window covering according to claim 6, characterized in that: the adsorption plate is an iron sheet, and the transmission block is a magnet.

8. An electrically controlled drive device for window covering according to claim 1, characterized in that: the driving wheel comprises a driving wheel body pivoted on the shell and an anti-skid sleeve fixedly sleeved outside the driving wheel body.

9. An electrically controlled drive device for window covering according to claim 8, wherein: the shell is also pivoted with a driven wheel; the driven wheel is pivoted on the shell and protrudes out of the top surface of the shell; the driven wheel is also used for being in frictional contact with the bottom surface of the external guide rail and is respectively arranged on two opposite sides of the shell with the driving wheel.

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