Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the curtain electric control driving device, which adopts the hooks to replace the change gears, and can adjust the positions of the hooks relative to the shell according to curtain guide rails with different sizes, so that the hooks can pull the driving wheels to keep close to the bottom surfaces of the curtain guide rails, and the applicability is stronger.
The invention adopts the following technical scheme:
the curtain electric control driving device comprises a shell, a hook, a rotating piece, a tension spring, a locking structure, a driving wheel and a driving mechanism; the hook is used for being inversely hung on the external hanging ring; 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 friction contact with the bottom surface of the external guide rail; the driving mechanism is arranged on the shell and used for driving the driving wheel to rotate so as to enable the driving wheel to move along an external guide rail; the hook is arranged on the shell and can move up and down relative to the shell; two ends of the tension spring are respectively connected with the hook and the rotating piece in a rotating way; the rotating piece can be installed on the shell in an up-and-down rotating way; the rotating piece is used for linking the hook to move upwards through the tension spring when rotating upwards and linking the hook to move downwards through the tension spring when rotating downwards; the locking structure is used for preventing the rotating piece from rotating relative to the shell.
Further, the locking structure comprises a blocking member fixed on the housing and a abutting portion fixed on the rotating member; the rotating piece is also used for linking the abutting part to move below the blocking piece when rotating downwards; the rotating piece can also move along the horizontal direction, and when moving along the horizontal direction, the abutting part is linked to be staggered with the blocking piece or the abutting part is linked to be opposite to the blocking piece; the blocking piece is used for abutting the abutting part so as to prevent the abutting part from moving upwards; the tension spring is used for hooking the hook on the external hanging ring, and the abutting part is in a stretching state when abutting against the blocking piece, so that the abutting part moves towards the direction of abutting against the blocking piece under the action of elastic stress of the tension spring.
Further, a horizontal support member is fixed on the shell; the rotating piece is movably sleeved on the horizontal supporting piece.
Further, the horizontal support piece comprises two support rods which are arranged at intervals, one end of each support rod is fixed on the shell, and the other end of each support rod is provided with a blocking part; the rotating piece is movably sleeved outside the two supporting rods; the blocking part is used for abutting against the rotating piece so as to prevent the rotating piece from being separated from the supporting rod.
Further, 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; a positioning inserting column is also fixed on the shell, and a positioning sleeve is detachably sleeved outside the positioning inserting column; the locating sleeve is used for being matched with and movably inserted into the slot of the external guide rail.
Further, a groove with a circular longitudinal section is formed in the side face of the driving wheel, and the central axis of the groove coincides with the central axis of the driving wheel; the wall of the groove is recessed to a direction far away from the center of the groove to form a limit 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 arranged on the shell; the output shaft of the rotating motor is in transmission connection with the push rod and is used for driving the push rod to rotate; 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 limit 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.
Further, the adsorption plate is an iron sheet, and the transmission block is a magnet.
Further, the driving wheel comprises a driving wheel body pivoted on the casing and an anti-skid sleeve fixedly sleeved outside the driving wheel body.
Further, 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 friction contact with the bottom surface of the external guide rail, and is respectively arranged on two opposite sides of the shell body with the driving wheel.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the hooks which can lift relative to the shell are arranged, and the rotating piece, the tension spring and the locking structure are matched, so that when the driving wheel is attached to the bottom surface of the curtain guide rail, the rotating piece drives the hooks to lift or descend relative to the shell through the linkage mechanism by rotating the rotating piece according to the sizes of different curtain guide rails, and the hooks can be adjusted to a proper position, so that the hooks are just hung on the external hanging rings and kept in a tensioning state, and at the moment, the hooks pull the driving wheel to be attached to the bottom surface of the curtain guide rail; therefore, the hanging hooks are adopted to replace the change gears, the size requirement on hanging grooves of the curtain guide rails is eliminated, the positions of the hanging hooks can be adjusted according to the curtain guide rails with different sizes, and the applicability is high.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
The electrically controlled driving device for curtain as shown in fig. 2-5 comprises a casing 10, a hook 20, a rotating member 30, a tension spring 40, a locking structure 50, a driving wheel 90 and a driving mechanism 100; the hook 20 is used for being hung on an external hanging ring 122 in an inverted mode; the driving wheel 90 is pivoted on the housing 10 and protrudes out of the top surface of the housing 10; the drive wheel 90 is also adapted to be in frictional contact with the bottom surface 121 of the outer rail; the driving mechanism 100 is mounted on the housing 10 and is used for driving the driving wheel 90 to rotate so as to enable the driving wheel 90 to move along the external guide rail 120; the hook 20 is mounted on the housing 10 and can move up and down relative to the housing 10; two ends of the tension spring 40 are respectively connected with the hook 20 and the rotating piece 30 in a rotating way; the rotating member 30 is rotatably installed at the housing 10 up and down; the rotating member 30 is configured to move the hook 20 upward by the tension spring 40 when rotating upward, and to move the hook 20 downward by the tension spring 40 when rotating downward; the locking structure 50 is used to prevent the rotational member 30 from rotating relative to the housing 10.
On the basis of the structure, when the curtain electric control driving device is used, the driving wheel 90 is attached to the external guide rail 120, when the position of the hook 20 relative to the shell 10 needs to be adjusted, the rotating piece 30 is rotated upwards or downwards, at the moment, the tension spring 40 is driven to move when the rotating piece 30 is rotated, then the tension spring 40 is used for linking the hook 20 to correspondingly move upwards or downwards, further, the hook 20 can be adjusted to a proper position, then the locking structure 50 is used for fixing the rotating piece 30, so that the hook 20 can be just hung on the external hanging ring 122 and kept in a tensioning state, at the moment, the hook 20 pulls the driving wheel 90 to keep close to the bottom surface 121 of the external guide rail, therefore, the hanging wheel is replaced by the hook 20, the size requirement on hanging grooves of the curtain guide rail 120 is eliminated, and the position of the hook 20 can be adjusted according to the curtain guide rails 120 with different sizes, so that the curtain guide rail has strong applicability; then, the driving mechanism 100 drives the driving wheel 90 to move along the external guide rail 120 under the friction force between the driving wheel 90 and the external guide rail 120, and drives the external hanging ring 122 hooked with the hook 20 to move, and when the external hanging ring 122 moves, other external hanging rings 122 on the curtain guide rail 120 are pushed to move, so that the opening and closing of the curtain are driven in an electric control manner.
The locking structure 50 may be an adhesive tape, through which the rotating member 30 is fixed to the housing 10; next, the locking structure 50 may also include a screw and a nut, the rotating member 30 is provided with a through hole, the housing 10 is penetrated with a locking groove, the locking groove coincides with the movement track of the through hole, and when the rotating member is rotated to a proper position, the screw passes through the through hole and the locking groove and then is screwed with the nut, so as to fix the rotating member 30.
Specifically, the fixing structure includes a stopper 51 fixed to the housing 10 and a abutting portion 52 fixed to the rotating member 30; the rotating member 30 is further configured to move the abutting portion 52 to below the blocking member 51 upon downward rotation, and specifically, the blocking member 51 may be disposed below the mounting point of the rotating member 30, and the rotating member 30 may have a radius of rotation greater than the distance between the blocking member 51 and the mounting point of the rotating member 30; the rotating member 30 can also move in the horizontal direction, and when moving in the horizontal direction, the linkage abutment 52 is staggered with the blocking member 51 or the linkage abutment 52 faces the blocking member 51; the blocking member 51 is used for abutting against the abutting portion 52 to prevent the abutting portion 52 from moving upwards; the tension spring 40 is used for being in a tensile state when the hook 20 is hung on the outer hanging ring 122 and the abutting portion 52 abuts against the blocking piece 51, so that the abutting portion 52 moves towards the direction of abutting against the blocking piece 51 under the elastic stress of the tension spring 40.
Based on the above structure, when in use, the rotating member 30 is rotated according to actual needs, the rotating member 30 is linked with the hook 20 through the tension spring 40 to ascend or descend until the hook 20 is adjusted to a position capable of being hooked on the external hanging ring 122; then, the rotating member 30 is horizontally moved to enable the abutting portion 52 to move to a position staggered from the blocking member 51 as shown in fig. 2, the rotating member 30 is continuously rotated downwards, the rotating member 30 is linked with the abutting portion 52 to move to the position below the blocking member 51, and then the rotating member 30 is horizontally moved to enable the abutting portion 52 to move to a position opposite to the blocking member 51 as shown in fig. 3; in this way, the abutting portion 52 is opposite to the lower portion of the blocking member 51, at this time, the tension spring 40 is stretched, the external force releases the rotating member 30, the elastic stress of the tension spring 40 pulls the abutting portion 52 to move towards the direction of abutting the blocking member 51, at this time, the external guide rail 120 abuts against and cannot move upwards, and therefore the abutting portion 52 abuts against the lower portion of the blocking member 51, the tension spring 40 prevents the rotating member 30 from moving downwards, and the blocking member 51 prevents the abutting portion 52 from moving upwards, so that the fixing of the rotating member 30 is achieved.
Moreover, since the tension spring 40 has enough elasticity, the driving wheel 90 is pulled to be closely attached to the bottom surface 121 of the external guide rail, so that the operation is stable, and the tension spring 40 can deform to a certain extent, so that the external guide rail 120 with different sizes can be adapted.
Specifically, the blocking member 51 may be a slot, and an upper slot wall of the slot is used for abutting against the abutting portion 52; the blocking member 51 may be a blocking plate.
Preferably, the housing 10 has a horizontal support 60 fixed thereto; the rotating member 30 is movably sleeved on the horizontal supporting member 60; in this way, the rotation of the rotation member 30 is realized and can be horizontally moved.
The horizontal support member 60 may be a support bar 61, and in this embodiment, more preferably, the horizontal support member 60 includes two support bars 61 disposed at intervals, one end of the support bar 61 is fixed on the housing 10, and the other end of the support bar 61 is provided with a blocking portion 62; the rotating piece 30 is movably sleeved outside the two support rods 61; the blocking part 62 is used for abutting against the rotating member 30 to prevent the rotating member 30 from being separated from the supporting rod 61; thus, when the rotating member 30 is sleeved on the two support rods 61, the two support rods 61 are pressed by an external force to approach each other, at this time, the rotating member 30 can be smoothly sleeved outside the two support rods 61, and then the two support rods 61 are released, and the two support rods 61 are reset, so that the blocking portion 62 can play a role of blocking the rotating member 30 from being separated from the support rods 61, and the dismounting is convenient.
When the hook 20 and the outer hanging ring 122 are excessively tightened, the whole housing 10 is easily inclined outwards away from the direction of the guide rail 120, please refer to fig. 3, namely, inclined along the front-back direction in fig. 3, and in order to avoid the situation, the bottom surface 121 of the outer guide rail is preferably provided with a slot with a downward notch; the slot extends along the extending direction of the outer rail 120; the shell 10 is also fixedly provided with a positioning inserting column 70, and a positioning sleeve 80 is detachably sleeved outside the positioning inserting column 70; the positioning sleeve 80 is used for matching and movably inserted into the slot of the external guide rail 120; in this way, the positioning sleeve 80 is inserted into the slot, so that the casing 10 is prevented from tilting outwards, the slot extends along the extending direction of the external guide rail 120, and the positioning sleeve 80 is prevented from obstructing the movement of the casing 10 when the casing moves along the external guide rail 120.
The positioning sleeves 80 are detachably arranged, so that the positioning sleeves 80 with different thicknesses can be replaced according to the width of the slot in the curtain guide rail 120 with different dimensions, or a plurality of positioning sleeves 80 are selectively arranged, so that the total thickness of the positioning sleeves 80 is exactly matched with the width of the slot.
The embodiment also discloses a curtain electric control driving device, as shown in fig. 2-7, which comprises the curtain electric control driving device; the housing 10 is also provided with a drive wheel 90 and a drive mechanism 100; the driving wheel 90 is pivoted on the housing 10 and protrudes out of the top surface of the housing 10, so as to ensure that the driving wheel 90 can be attached to the external guide rail 120; the drive wheel 90 is also adapted to be in frictional contact with the bottom surface 121 of the outer rail; the driving mechanism 100 is mounted on the housing 10 and is used for driving the driving wheel 90 to rotate; thus, when the curtain electric control driving device is used, the curtain electric device is arranged on the outer guide rail 120, wherein the driving wheel 90 is propped against the bottom surface 121 of the outer guide rail, the hook 20 is hooked and hung on the outer hanging ring 122, and at the moment, the driving wheel 90 is kept close to the bottom surface 121 of the outer guide rail under the pulling of the hook 20 and the outer hanging ring 122; the driving mechanism 100 drives the driving wheel 90 to rotate, at this time, under the friction force between the driving wheel 90 and the external guide rail 120, the driving wheel 90 moves along the external guide rail 120, so as to implement curtain guide rails 120 applicable to different specifications and sizes, and implement electric control driving.
The driving mechanism 100 may employ a conventional rotary motor 104, a rotary hydraulic cylinder, or the like; when the rotary electric machine 104 is used, the body of the rotary electric machine 104 is fixed to the casing 10, and the output shaft of the rotary electric machine 104 is in transmission connection with the drive wheel 90.
In order to realize the free switching between the electric and manual operation, preferably, the side surface of the driving wheel 90 is provided with a groove with a circular longitudinal section; the central axis of the groove coincides with the central axis of the driving wheel 90; the wall of the groove is recessed away from the center to form a limit groove 91; the driving mechanism 100 comprises an adsorption plate 101, a transmission block 102, a push rod 103 and a rotary motor 104; the adsorption plate 101 is mounted on the housing 10; the transmission block 102 is magnetically absorbed by the absorption plate 101 and is positioned in the groove; thus, the transmission block 102 is arranged on the adsorption plate 101 and can move in any direction relative to the adsorption plate 101 under the action of external force; a rotary electric machine 104 is mounted on the housing 10; the output shaft of the rotating motor 104 is in transmission connection with the push rod 103 and is used for driving the push rod 103 to rotate; the push rod 103 is used for pushing the transmission block 102 when rotating, so that the transmission block 102 moves towards the direction close to the groove wall of the groove to push the transmission block 102 into the limit groove 91; the limiting groove 91 is configured such that when the push rod 103 does not push the transmission block 102 and the driving wheel 90 rotates under the action of external force, the transmission block 102 can be separated from the limiting groove 91; specifically, the groove depth of the limiting groove 91 is smaller than the radius of the transmission block 102, and the groove wall of the limiting groove 91 is arc-shaped.
On the basis of the above structure, when electric driving is needed, the output shaft of the rotating motor 104 drives the push rod 103 to rotate along the direction a shown by the arrow in fig. 7 (or move along the direction opposite to the direction a shown by the arrow), the push rod 103 rotates to a position propping against the transmission block 102 and continues to push the transmission block 102 under the driving of the rotating motor 104, at this time, the pushing force of the push rod 103 makes the transmission block 102 overcome the adsorption force of the adsorption plate 101, meanwhile, referring to fig. 7, after overcoming the adsorption force of the adsorption plate 101, as shown by the force analysis, the transmission block 102 also receives the pushing force F shown in fig. 7, at this time, under the action of the pushing force F, the transmission block 102 moves towards the direction close to the groove wall of the groove, and then the transmission block 102 enters the limit groove 91; the push rod 103 continues to push the transmission block 102, and presses the transmission block 102 to press the transmission block 102 in the limit groove 91, so that the transmission block 102 is stably positioned in the limit groove 91, then the transmission block 102 continues to move along with the push rod 103, and the transmission block 102 pushes the groove wall of the limit groove 91 when moving so as to drive the driving wheel 90 to rotate, and then the electric control driving of the driving wheel 90 is realized; when manual driving is needed, the curtain is pulled, the curtain drives the shell 10 to move and then the driving wheel 90 is linked to rotate along the direction shown by the arrow A in fig. 7, at this time, the transmission block 102 is not pressed in the limit groove 91 by the thrust of the push rod 103, then the groove wall of the limit groove 91 pushes the transmission block 102 along with the continuous rotation of the driving wheel 90, and the transmission block 102 is subjected to the adsorption force of the adsorption plate 101, so, along with the movement of the driving wheel 90, the transmission block 102 moves towards the groove opening and along the arc groove wall of the limit groove 91, and the groove depth of the limit groove 91 is smaller than the radius of the transmission block 102, at this time, the transmission block 102 can be separated from the limit groove 91 under the pushing of the limit groove 91, therefore, the transmission block 102 is separated from the limit groove 91, and the rotation of the driving wheel 90 is not blocked by the blocking action of the push rod 103 on the transmission block 102, so that manual operation can be realized.
Specifically, the adsorption plate 101 is an iron sheet, and the transmission block 102 is a magnet; or the adsorption plate 101 is a magnet, and the transmission block 102 is an iron block.
To achieve the friction of the outer rail 120 of the driving wheel 90, preferably, the driving wheel 90 includes a driving wheel body 92 pivoted on the housing, and an anti-slip cover 93 fixedly sleeved outside the driving wheel body 92, and the friction force is ensured by the anti-slip cover 93; the anti-slip sleeve 93 can be a rubber sleeve or a rubber sleeve with an anti-slip cross on the surface.
Specifically, the casing 10 is further pivoted with a driven wheel 110; the driven wheel 110 is pivoted on the shell 10 and protrudes out of the top surface of the shell 10; the driven wheel 110 is also adapted to be in frictional contact with the bottom surface 121 of the outer rail and is spaced apart from the driving wheel 90 on opposite sides of the housing 10 for more stable movement.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.