CN213175478U

CN213175478U - Curtain driving device

Info

Publication number: CN213175478U
Application number: CN202021041585.9U
Authority: CN
Inventors: 雷振邦; 雷兴邦
Original assignee: Dongguan Leifuyi Window Decoration Technology Co ltd
Current assignee: Dongguan Leifuyi Window Decoration Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-05-11
Anticipated expiration: 2030-06-08
Also published as: WO2021249292A1

Abstract

The embodiment of the utility model provides a curtain driving device, a winding drum for driving and being provided with curtain cloth, driving device includes the first actuating mechanism of installing in winding drum one end inside, still include simultaneously and set up in winding drum other end inside and with first actuating mechanism mutually in coordination and the synchronous drive winding drum rotates around the axis second actuating mechanism, at least one in first actuating mechanism and the second actuating mechanism is flat spiral spring mechanism, flat spiral spring mechanism includes one end is fixed in on the fixing base and the other end inserts the axostylus axostyle in the winding drum and is fixed with the fixed gear, with the winding drum in the casing relatively fixed in circumference, assemble the flat spiral spring in the casing and fix winding shaft and output shaft in the casing parallelly, the both ends of flat spiral spring are convoluteed respectively on winding shaft and output shaft, be provided with coaxial driving gear on the output shaft, and a transmission gear set is also arranged between the driving gear and the fixed gear. The utility model discloses can steadily drive the curtain cloth and go up and down.

Description

Curtain driving device

Technical Field

The embodiment of the utility model provides a relate to (window) curtain technical field, especially relate to a (window) curtain drive arrangement.

Background

A semi-automatic window curtain includes a winding drum, a curtain fabric wound on the winding drum, and a driving device disposed in the winding drum. The two ends of the winding drum are mounted on the corresponding supports, the driving device comprises a spiral spring, a damper and a limiter, and the spiral spring is deformed to generate elastic force to balance the gravity of the curtain cloth through the rotation of the winding drum, so that the curtain cloth can stop at any position in the pull-down process; in the recovery process, because the whole deformation that takes place of coil spring, elasticity is difficult to control, needs install the attenuator additional and come to carry out balanced adjustment to elasticity and gravity, however, install the attenuator additional and can make the structure complicated, the assembly cost is high.

The other type of the existing semi-automatic window curtain drives and controls the pulling-down and the recovery of the curtain cloth by arranging a rotating rod axially fixed with the winding drum at one end of the winding drum and a flat spiral spring driven with one end of the rotating rod, the elastic force is easily controlled when the flat spiral spring deforms, the structure is relatively simple, but when the winding drum rotates, only one end of the winding drum is provided with the rotating rod and the flat spiral spring, so that the two ends of the winding drum are unbalanced in stress, the curtain cloth is easily deflected to influence the normal folding and unfolding of the curtain cloth, and the curtain cloth is not stably lifted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides a (window) curtain drive arrangement, can steadily drive the curtain cloth and go up and down.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme: a curtain driving device is used for driving a winding drum with two ends correspondingly pivoted on corresponding fixed seats and provided with curtain cloth in a winding mode, the driving device comprises a first driving mechanism arranged inside one end of the winding drum, the curtain driving device further comprises a second driving mechanism arranged inside the other end of the winding drum and mutually cooperated with the first driving mechanism to synchronously drive the winding drum to rotate around a central axis, at least one of the first driving mechanism and the second driving mechanism is a flat spiral spring mechanism, the flat spiral spring mechanism comprises a shaft rod with one end fixed on the fixed seat and the other end inserted into the winding drum and fixed with a fixed gear, a shell circumferentially and relatively fixed with the winding drum, a spiral flat spring assembled in the shell, a winding shaft and an output shaft which are fixed in the shell in a parallel mode, and two ends of the flat spiral spring are respectively wound on the winding shaft and the output shaft, the output shaft is provided with a coaxial driving gear, and a transmission gear set is further arranged between the driving gear and the fixed gear.

Further, one of the first driving mechanism and the second driving mechanism is the spiral spring mechanism and the other is a rotating electric machine mechanism, the rotating electric machine mechanism includes a rotating electric machine and a driving block fixed on a rotating output shaft of the rotating electric machine, a housing of the rotating electric machine is fixed to a fixed seat at one end of the winding drum, and the driving block and the winding drum are relatively fixed in the circumferential direction.

Furthermore, a sliding sleeve capable of rotating relative to the casing is further sleeved on the casing of the rotating motor, and the sliding sleeve and the winding drum are circumferentially fixed relatively.

Further, the first driving mechanism and the second driving mechanism are both the spiral spring mechanism, the output shaft of the spiral spring mechanism disposed at each end of the winding drum is disposed at a side of the casing close to the corresponding end of the winding drum, and the winding shaft is disposed at a side of the casing far away from the corresponding end of the winding drum.

Furthermore, the transmission gear set comprises a transmission gear and a transition gear which are coaxially arranged, the transmission gear is meshed with the driving gear, and the transition gear is meshed with the fixed gear.

Furthermore, the axial direction of the output shaft is vertical to the axial direction of the shaft lever, the driving gear is parallel to the axial direction of the transmission gear, and the transition gear and the fixed gear are bevel gears which are vertically arranged in the axial direction.

Further, a coaxial driven gear is further arranged on the winding shaft, and the driven gear is meshed with the driving gear.

Further, the axostylus axostyle includes the fixed axle of fixing an organic whole with the fixing base and with the connecting axle of fixed axle grafting, the fixed gear is fixed in the connecting axle is terminal, set up the shaft hole on the casing, the one end that the connecting axle is fixed with the fixed gear is located the casing and the other end from the shaft hole is worn out and is fixed with the fixed axle grafting.

Furthermore, the wall of the winding drum is recessed inwards to form a mounting groove which penetrates through the winding drum along the axial direction and is used for fixing one end of the curtain cloth, the side wall and the bottom wall of the mounting groove are recessed inside the winding drum to form a convex rail, clamping grooves matched with the convex rail are formed in the outer wall of the shell, the side face of the driving block and the side face of the sliding sleeve, and the shell, the driving block and the sliding sleeve are clamped on the convex rail through the clamping grooves respectively.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the embodiment of the utility model provides a through set up first actuating mechanism and second actuating mechanism at the winding reel both ends, can let the both ends of winding reel keep synchronous drive power when the curtain cloth goes up and down, make the drive curtain cloth that drive arrangement can be steady go up and down.

Drawings

Fig. 1 is a schematic view of an alternative embodiment of the curtain driving device of the present invention.

Fig. 2 is an exploded view of an alternative embodiment of the curtain driving device of the present invention.

Fig. 3 is an exploded view of another alternative embodiment of the curtain drive device of the present invention.

Fig. 4 is a schematic cross-sectional view of a flat spiral spring mechanism along the central axis of the winding drum for an alternative embodiment of the curtain drive of the present invention.

Fig. 5 is a schematic cross-sectional view of a rotating electric machine mechanism along the central axis of the winding drum according to an alternative embodiment of the curtain driving device of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

As shown in fig. 1-4, an optional embodiment of the present invention provides a curtain driving device, for driving a winding drum 1 with two ends pivoted on corresponding fixing seats 10 and provided with a curtain, the driving device includes a first driving mechanism 3 installed inside one end of the winding drum 1, the curtain driving device further includes a second driving mechanism 5 installed inside the other end of the winding drum 1 and cooperating with the first driving mechanism 3 to synchronously drive the winding drum 1 to rotate around a central axis, at least one of the first driving mechanism 3 and the second driving mechanism 5 is a spiral spring mechanism 7, the spiral spring mechanism 7 includes a shaft rod 72 with one end fixed on the fixing seat 10 and the other end inserted into the winding drum 1 and fixed with a fixed gear 70, and a casing 74 fixed circumferentially relative to the winding drum 1, The flat spiral spring 76 is assembled in the housing 74, and the winding shaft 761 and the output shaft 763 are fixed in the housing 74 in parallel, both ends of the flat spiral spring 76 are respectively wound on the winding shaft 761 and the output shaft 763, the output shaft 763 is provided with a coaxial driving gear 7630, and a transmission gear set 78 is further provided between the driving gear 7630 and the fixed gear 70.

The embodiment of the utility model provides a through set up first actuating mechanism 3 and second actuating mechanism 5 at 1 both ends of winding reel, can let the both ends of winding reel 1 keep synchronous drive power when the curtain cloth goes up and down, make the drive curtain cloth that drive arrangement can be steady go up and down.

As shown in fig. 1-5, in another alternative embodiment of the present invention, one of the first driving mechanism 3 and the second driving mechanism 5 is the spiral spring mechanism 7, and the other is the rotating electric machine mechanism 9, the rotating electric machine mechanism 9 includes a rotating electric machine 90 and a driving block 903 fixed on a rotating output shaft 901 of the rotating electric machine 90, a housing 905 of the rotating electric machine 90 is fixed to a fixing seat 10 at one end of the winding reel 1, and the driving block 903 is fixed to the winding reel 1 in a circumferential direction.

In the embodiment, the flat spiral spring mechanism 7 is arranged at one end of the winding drum, the rotating motor mechanism 9 is arranged at the other end of the winding drum, the driving force of the rotating motor mechanism 9 is correspondingly adjusted to be equal to the driving force of the flat spiral spring mechanism 7, the driving forces at the two ends of the winding drum 1 can be kept consistent, and the winding drum 1 is effectively driven to lift the curtain cloth.

As shown in fig. 3, in another alternative embodiment of the present invention, a sliding sleeve 907 capable of rotating relative to the casing 905 is further sleeved on the casing 905 of the rotating electrical machine 90, and the sliding sleeve 907 is circumferentially fixed relative to the winding drum 1. In the present embodiment, the sliding bush 907 fixed to the circumferential direction of the winding drum 1 is provided on the housing 905 of the rotating electric machine 90, so that the rotation of both ends of the winding drum 1 can be kept synchronous, and the fabric can be lifted and lowered smoothly.

In another optional embodiment of the present invention, the first driving mechanism 3 and the second driving mechanism 5 are both the spiral spring mechanism 7, the output shaft 763 of the spiral spring mechanism 7 disposed at each end of the winding drum 1 is disposed at one side of the casing 74 close to the corresponding end of the winding drum 1, and the winding shaft 761 is disposed at one side of the casing 74 far away from the corresponding end of the winding drum 1.

In the embodiment, the flat spiral spring mechanisms 7 are arranged at the two ends of the winding drum 1, the flat spiral spring 76 is wound on the winding shaft 761, the other end of the flat spiral spring mechanism is arranged on one side surface of the output shaft 763, the output shaft 763 is arranged to be close to one side of the corresponding end part of the winding drum 1, the winding shaft 761 is arranged to be far away from one side of the corresponding end part, the spring elasticity at the two ends can be kept at symmetrical positions to balance, and the stability of the device is improved.

As shown in fig. 2-4, in yet another alternative embodiment of the present invention, the transmission gear set 78 includes a transmission gear 781 and a transition gear 783 coaxially disposed, the transmission gear 781 is engaged with the driving gear 7630, and the transition gear 783 is engaged with the fixed gear 70. In this embodiment, the transmission gear 781, the driving gear 7630, the transition gear 783, and the fixed gear 70 are engaged with each other, so that power can be effectively transmitted through the gears to rotate the winding drum 1.

In another alternative embodiment of the present invention, the axial direction of the output shaft 763 is perpendicular to the axial direction of the shaft 72, the driving gear 7630 is axially parallel to the driving gear 781, and the transition gear 783 and the fixed gear 70 are bevel gears that are axially perpendicular to each other. In this embodiment, the output shaft 763 is perpendicular to the shaft 72 in the axial direction, so that the relative positional relationship between the output shaft 763 and the shaft can be maintained, and the bevel gears perpendicular to each other are provided, so that the plane elastic force generated by the spiral spring 76 can be converted into a vertical rotational force to rotate the winding drum 1.

In another optional embodiment of the present invention, a coaxial driven gear 7610 is further provided on the winding shaft 761, and the driven gear 7610 is engaged with the driving gear 7630. In the present embodiment, the driven gear 7610 coaxially disposed on the winding shaft 761 is engaged with the driving gear 7630, so that the driving gear 7630 can be balanced during rotation, thereby improving the stability of the device.

In another optional embodiment of the present invention, the shaft rod 72 includes a fixed shaft 721 fixed to the fixed base 10 and a connecting shaft 723 connected to the fixed shaft 721 in an inserting manner, the fixed gear 70 is fixed to the end of the connecting shaft 723, a shaft hole 741 is formed in the housing 74, one end of the connecting shaft 723 fixed with the fixed gear 70 is located in the housing 74, and the other end of the connecting shaft 741 penetrates through the shaft hole 741 and is connected to the fixed shaft 721 in an inserting manner.

In the embodiment, the connecting shaft 723 passing through the shaft hole 741 in the housing 74 is inserted and fixed to the fixing shaft 721 integrally formed with the fixing base 10, so that the fixing shaft 721 is fixed while the fixed gear 70 rotates, thereby maintaining the stability of the two ends of the winding drum.

In another optional embodiment of the present invention, the inner wall of the winding drum 1 is recessed inward to form a mounting groove 12 axially penetrating through the winding drum 1 and used for fixing one end of the cord fabric, the side wall and the bottom wall of the mounting groove 12 are recessed inside the winding drum 1 to form a protruding rail 120, a slot 909 adapted to the protruding rail 120 is formed on the outer wall of the casing 74, on the side surface of the driving block 903, and on the side surface of the sliding sleeve 907, the casing 74, the driving block 903, and the sliding sleeve 907 are respectively connected to the protruding rail 120 through the slot 909.

In this embodiment, the housing 74, the driving block 903 and the sliding sleeve 907 are provided with the engaging groove 909 adapted to the protruding rail 120, so that the housing 74 and the driving block 903 can be driven to rotate when the fixed gear 70 and the output shaft 763 fixed to the housing 74 rotate, and the winding drum 1 is limited by the engaging groove 909 to be driven to rotate synchronously.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many changes without departing from the spirit and the scope of the invention as claimed.

Claims

1. A curtain driving device is used for driving a winding drum with two ends correspondingly pivoted on corresponding fixed seats and provided with curtain cloth in a winding way, and comprises a first driving mechanism arranged inside one end of the winding drum, and is characterized by further comprising a second driving mechanism which is arranged inside the other end of the winding drum and mutually cooperates with the first driving mechanism to synchronously drive the winding drum to rotate around a central axis, at least one of the first driving mechanism and the second driving mechanism is a flat spiral spring mechanism, the flat spiral spring mechanism comprises a shaft rod with one end fixed on the fixed seat and the other end inserted into the winding drum and fixed with a fixed gear, a shell circumferentially fixed relative to the winding drum, a flat spiral spring assembled in the shell, a winding shaft and an output shaft which are fixed in the shell in parallel, two ends of the flat spiral spring are respectively wound on the winding shaft and the output shaft, a coaxial driving gear is arranged on the output shaft, and a transmission gear set is further arranged between the driving gear and the fixed gear.

2. The window covering driving apparatus as claimed in claim 1, wherein one of the first driving mechanism and the second driving mechanism is the spiral spring mechanism and the other is a rotary motor mechanism, the rotary motor mechanism includes a rotary motor and a driving block fixed to a rotary output shaft of the rotary motor, a housing of the rotary motor is fixed to a fixed seat at one end of the winding drum, and the driving block is fixed to the winding drum relatively in a circumferential direction.

3. The window curtain driving device as claimed in claim 2, wherein a sliding sleeve capable of rotating relative to the housing is further sleeved on the housing of the rotating motor, and the sliding sleeve and the winding drum are circumferentially fixed relative to each other.

4. The window covering driving apparatus as claimed in claim 1, wherein the first driving mechanism and the second driving mechanism are both the spiral spring mechanisms, the output shaft of the spiral spring mechanism provided at each end of the winding drum is provided at a side of the housing close to a corresponding end of the winding drum, and the winding shaft is provided at a side of the housing far from the corresponding end of the winding drum.

5. The window covering driving apparatus of claim 1, wherein the transmission gear set comprises a transmission gear and a transition gear coaxially disposed, the transmission gear is engaged with the driving gear, and the transition gear is engaged with the fixed gear.

6. The window curtain driving apparatus as claimed in claim 5, wherein the output shaft has an axial direction perpendicular to an axial direction of the shaft, the driving gear and the transmission gear have axial directions parallel to each other, and the transition gear and the fixed gear are bevel gears disposed axially perpendicular to each other.

7. The window covering driving apparatus as claimed in claim 1, wherein the winding shaft is further provided with a coaxial driven gear, and the driven gear is engaged with the driving gear.

8. The window curtain driving device as claimed in claim 1, wherein the shaft rod includes a fixed shaft fixed to the fixed base and a connecting shaft inserted into the fixed shaft, the fixed gear is fixed to an end of the connecting shaft, the housing is formed with a shaft hole, and one end of the connecting shaft, to which the fixed gear is fixed, is located in the housing and the other end of the connecting shaft penetrates through the shaft hole and is inserted into and fixed to the fixed shaft.

9. The curtain driving device as claimed in claim 3, wherein the wall of the winding drum is recessed inwardly to form a mounting groove axially penetrating the winding drum for fixing one end of the curtain, the side wall and the bottom wall of the mounting groove are recessed inside the winding drum to form a protruding rail, the outer wall of the housing, the side surface of the driving block and the side surface of the sliding sleeve are formed with slots adapted to the protruding rail, and the housing, the driving block and the sliding sleeve are respectively locked to the protruding rail through the slots.