CN216642866U

CN216642866U - Clutch structure of retractable curtain motor

Info

Publication number: CN216642866U
Application number: CN202122713244.2U
Authority: CN
Inventors: 尹一军; 叶青
Original assignee: Ningbo Fujing Intelligent Technology Co ltd
Current assignee: Ningbo Fujing Intelligent Technology Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-05-31
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a clutch structure of an opening and closing curtain motor, which comprises a clutch fixing upper cover, a clutch fixing lower cover and a clutch driver combination, wherein the clutch fixing upper cover and the clutch fixing lower cover are covered and a speed reducing component is arranged in the clutch fixing upper cover; a return block is arranged between the clutch driving head and the speed reducing component; a plurality of magnets are also arranged in the cavity; the displacement position of the magnet relative to the clutch driving head comprises a first position of the clutch driving head and the magnet when the clutch driving head is static and a second position of the clutch driving head after the clutch driving head stirs the magnet. The utility model provides a clutch structure of a curtain opening and closing motor, which has a simple structure and is convenient and fast to use, and can manually pull a curtain by using small force when a motor is powered off.

Description

Clutch structure of retractable curtain motor

Technical Field

The utility model belongs to the technical field of motor manufacturing, and particularly relates to a clutch structure of an opening and closing curtain motor.

Background

The curtain opening and closing motor is a device for electrically driving the opening and closing of curtains and the like, and comprises a tubular clutch fixing lower cover, wherein a motor, a clutch mechanism and a driving mechanism are installed in the clutch fixing lower cover, the motor drives the driving mechanism to rotate in the forward direction or in the reverse direction through the clutch mechanism, and then drives the curtain and other components to complete the operation of the curtain opening and closing. The clutch mechanism is arranged between the motor and the driving mechanism, is used for transmitting the rotation of the output shaft of the motor to the driving mechanism when the motor is started, is in a disengaged state in a normal state, and can be manually opened and closed without being limited by the output shaft of the motor.

In the prior art, people research that a clutch is arranged in an opening and closing curtain motor, and the clutch can be electromagnetic or mechanical. In case of power failure of the motor, the transmission mechanism can move independently of the motor, so that a hand-pulling function or a hand-pulling starting function can be provided. However, the existing curtain opening and closing motor with an electromagnetic clutch usually has a motor core connected with a reduction box, a brake shaft in the middle of a lower brake penetrates through a coil assembly to be connected with an output end of the reduction box, an upper brake is matched with a brake linkage device and synchronously rotates, and a motor output shaft is fixed on the brake linkage device and synchronously rotates to drive an external transmission mechanism to rotate. When the motor is powered on to operate, the coil assembly generates strong magnetic attraction force to the upper brake to enable the upper brake to be in close contact with the lower brake and drive the upper brake, the brake linkage device and the motor output shaft to rotate; when the motor is powered off and stops running, the magnetic attraction force of the coil combination disappears, the upper brake and the lower brake are separated from the close contact state, the upper brake is also powerless to continue rotating, and therefore the output shaft of the motor stops rotating. At the moment, the curtain is pulled by hands, and the external transmission mechanism drives the motor output shaft, so that the motor output shaft also rotates and drives the upper part to brake and rotate. Because there is no magnetic attraction between the upper brake and the lower brake, the lower brake will not rotate, and the hand pulling function when the motor stops running is realized. However, although the upper brake and the lower brake are not in close contact when the motor is powered off, the upper brake and the lower brake are still in certain contact and have certain friction force, so that a large force is needed when the curtain is manually pulled, and daily use is not facilitated.

Disclosure of Invention

The utility model aims to solve the defects of the technology, and provides a clutch structure of a curtain opening and closing motor, which is simple in structure and convenient and fast to use and can manually pull a curtain by using small force when a motor is powered off.

The utility model designs a clutch structure of an opening and closing curtain motor, which comprises a clutch fixing upper cover, a clutch fixing lower cover and a clutch driver assembly, wherein the clutch fixing upper cover and the clutch fixing lower cover are covered and internally provided with a speed reducing component; a return block is arranged between the clutch driving head and the speed reducing assembly; a plurality of magnets are arranged in the cavity and placed in the gap; the displacement position of the magnet relative to the clutch driving head comprises a first position of the magnet when the clutch driving head is static and a second position of the clutch driving head after the magnet is stirred.

Furthermore, the clutch driving head comprises an input end in transmission connection with the speed reduction assembly and an output end in combined linkage with the clutch driver, and the output end is arranged in a spindle shape.

Furthermore, one end of the return block, which is close to the magnet, has magnetism, and the magnet is adsorbed on the return block and is arranged on two sides of the output end.

Furthermore, the clutch driver assembly comprises a shaft sleeve and a driving shaft, the shaft sleeve abuts against the clutch fixing upper cover, and the driving shaft is connected with an external transmission structure.

Furthermore, a plurality of grooves are formed in the inner peripheral wall of the upper end of the shaft sleeve, and the grooves correspond to the magnets one to one.

Furthermore, a plurality of signal magnets are embedded in the circumferential direction of the bottom end of the shaft sleeve.

Furthermore, when the clutch driver is in the second position, the output end of the clutch driver drives the magnet to be clamped in the groove and abut against the output end, and then the clutch driver is in transmission connection with the clutch driver assembly.

Furthermore, the clutch fixing upper cover and the clutch fixing lower cover are fixedly connected through a plurality of fasteners.

Further, a flat washer is arranged between the clutch fixing upper cover and the fastening piece.

Furthermore, the speed reduction assembly comprises a first-level planet wheel and a second-level planet wheel, and the first-level planet wheel and the second-level planet wheel are connected through a first-level support and a second-level support respectively.

The beneficial effects of the utility model are as follows:

the clutch driving head and the clutch driver are combined to drive components such as a curtain and the like to complete the operation of opening and closing the curtain in an electric or manual mode through the cooperation of the clutch fixing upper cover, the clutch fixing lower cover, the magnet and the signal magnet; when the clutch driving head and the clutch driver combination are not electrified, the clutch driving head and the clutch driver combination are in a first position, namely a separation state, and can be manually operated, and the clutch driving head and the clutch driver combination are in a second position, namely a transmission connection state, and can be driven by a motor; the utility model has convenient operation, can be operated manually or electrically, and has high safety performance.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a cross-sectional view of the present invention (the homing block and magnet not identified in the drawings);

fig. 3 is a schematic structural diagram of the clutch driving head in the utility model.

In the figure: the clutch driving device comprises a clutch fixing upper cover 1, a clutch fixing lower cover 2, a clutch driver combination 3, a cavity 31, a shaft sleeve 32, a groove 321, a driving shaft 33, a speed reducing component 4, a first-stage planetary gear 41, a second-stage planetary gear 42, a first-stage sun gear 43, a first-stage support 44, a second-stage support 45, an inner gear sleeve 46, an inner gear sleeve seat 47, a sun gear coupler 48, a clutch driving head 5, an input end 51, an output end 52, a return block 6, a magnet 7, a signal magnet 8, a fastening piece 9 and a flat washer 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

As shown in fig. 1 to 2, the clutch structure of the retractable curtain motor described in this embodiment includes a clutch fixing upper cover 1, a clutch fixing lower cover 2, and a clutch driver assembly 3, wherein the clutch fixing upper cover 1 and the clutch fixing lower cover 2 are covered and a speed reduction assembly 4 is disposed inside the clutch fixing upper cover and the clutch fixing lower cover.

The speed reduction assembly 4 comprises a first-stage sun gear 43, a first-stage planet gear 41 and a second-stage planet gear 42, the first-stage sun gear 43 is further provided with a sun gear coupler 48, and the first-stage sun gear 43, the first-stage planet gear 41 and the second-stage planet gear 42 are respectively connected through an inner gear sleeve 46 seat, an inner gear sleeve 46, a first-stage support 44 and a second-stage support 45.

The clutch driver assembly 3 is abutted against the clutch fixing upper cover 1 to form a cavity 31, a clutch driving head 5 is arranged in the cavity 31, one end of the clutch driving head 5 is matched with the speed reducing component 4 and synchronously rotates, and the other end of the clutch driving head is opposite to the clutch driver assembly 3 and keeps a certain gap; a return block 6 is arranged between the clutch driving head 5 and the speed reducing component 4; a plurality of magnets 7 are further arranged in the cavity 31, one end of the return block 6, which is close to the magnets 7, is provided with magnetism, and the magnets 7 are adsorbed on the return block 6 and are arranged on two sides of the clutch driving head 5; the displacement position of the magnet 7 relative to the clutch driving head comprises a first position of the magnet 7 when the clutch driving head 5 is static and a second position of the clutch driving head 5 after the clutch driving head 5 moves the magnet 7.

As shown in fig. 3, the clutch driving head 5 includes an input end 51 in transmission connection with the speed reduction assembly 4 and an output end 52 in linkage with the clutch driver assembly 3, and the output end 52 is in a spindle-shaped arrangement.

Specifically, the clutch driver assembly 3 comprises a shaft sleeve 32 and a driving shaft 33, the shaft sleeve 32 abuts against the clutch fixing upper cover 1, and the driving shaft 33 is connected with an external transmission structure.

Wherein, the inner peripheral wall of the upper end of the shaft sleeve 32 is provided with a plurality of grooves 321, and the grooves 321 correspond to the magnets 7 one by one; a plurality of signal magnets 8 are embedded at the bottom end of the shaft sleeve 32 in the circumferential direction. The two magnets 7 are arranged in the utility model, and the two grooves 321 are matched with the two magnets, so that the design can be carried out according to actual requirements.

In the utility model, the position of the groove 321 is preferably such that the clutch driving head 5 and the clutch driver assembly 3 can be clamped and move synchronously, and the specific position can be adjusted according to actual conditions.

In the second position, the output end 52 of the clutch driving head 5 pulls the magnet 8, so that the magnet 8 is clamped in the groove 321 and abuts against the output end 52, and the clutch driving head 5 is in transmission connection with the clutch driver assembly 3.

Specifically, the clutch fixing upper cover 1 and the clutch fixing lower cover 2 are fixedly connected through a plurality of fasteners 9. The number of the fastening pieces 9 is four and the fastening pieces are fixed on the periphery of the clutch fixing upper cover 1. The fastener 9 of the utility model adopts a cross-recessed pan head self-tapping screw, without excluding other fastening parts with the same or similar functions.

A flat gasket 10 is arranged between the clutch fixing upper cover 1 and the fastening piece 9 to protect the surface of the clutch fixing upper cover 1 from being scratched by screws and disperse the pressure of the screws on the clutch fixing upper cover 1.

The working principle is as follows:

when the motor is not electrified, the clutch driving head 5 and the clutch driver assembly 3 are in the first position, namely the clutch driving head 5 does not work, and the magnet 7 and the groove 321 of the clutch driver assembly 3 are in a staggered state, so that manual curtain opening and closing operation is realized; when the motor is powered on, the clutch driving head 5 works, the clutch driving head 5 and the clutch driver assembly 3 are located at the second position, namely, the clutch driving head 5 stirs the magnet 7 to rotate together, so that the magnet 7 is clamped in the groove 321 of the clutch driver assembly 3 and is abutted against the output head of the clutch driving head 5, and at the moment, the motor drives the clutch driving head 5 to rotate and drive the clutch driver assembly 3 to move, so that the electric curtain opening and closing operation is realized.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims

1. The utility model provides a separation and reunion structure of curtain motor opens and shuts, includes the fixed upper cover of separation and reunion, the fixed lower cover of separation and reunion and the combination of separation and reunion driver, the fixed upper cover of separation and reunion with the fixed lower cover of separation and reunion covers and closes at its inside speed reduction unit that is provided with, its characterized in that: the clutch driver assembly is abutted against the clutch fixing upper cover to form a cavity, a clutch driving head is arranged in the cavity, one end of the clutch driving head is matched with the speed reducing assembly and synchronously rotates, and the other end of the clutch driving head is opposite to the clutch driver assembly and keeps a gap; a return block is arranged between the clutch driving head and the speed reducing assembly; a plurality of magnets are also arranged in the cavity; the displacement position of the magnet relative to the clutch driving head comprises a first position of the magnet when the clutch driving head is static and a second position of the clutch driving head after the magnet is stirred.

2. The clutch structure of the retractable curtain motor as claimed in claim 1, wherein the clutch driving head comprises an input end in transmission connection with the speed reduction assembly and an output end in combined linkage with the clutch driver, and the output end is arranged in a spindle shape.

3. The clutch structure of the retractable curtain motor as claimed in claim 2, wherein the end of the return block close to the magnet has magnetism, and the magnet is attached to the magnetic end of the return block and disposed on both sides of the output end.

4. The clutch structure of the retractable curtain motor as claimed in claim 1 or 2, wherein the clutch driver assembly comprises a shaft sleeve and a driving shaft, the shaft sleeve abuts against the clutch fixing upper cover, and the driving shaft is connected with an external transmission structure.

5. The clutch structure of the retractable curtain motor as claimed in claim 4, wherein a plurality of grooves are formed on the inner peripheral wall of the upper end of the shaft sleeve, and the grooves correspond to the magnets one to one.

6. The clutch structure of the retractable curtain motor as claimed in claim 5, wherein the output end of the clutch driving head drives the magnet to make the magnet clamped in the groove and abut against the output end when in the second position, and the clutch driving head is in transmission connection with the clutch driver assembly.

7. The clutch structure of the retractable curtain motor as claimed in claim 4, wherein a plurality of signal magnets are embedded in the bottom end of the shaft sleeve in the circumferential direction.

8. The clutch structure of the retractable curtain motor as claimed in claim 4, wherein the clutch fixing upper cover and the clutch fixing lower cover are fixedly connected by a plurality of fasteners.

9. The clutch structure of the retractable curtain motor as claimed in claim 8, wherein a flat washer is disposed between the clutch fixing upper cover and the fastening member.

10. The clutch structure of the retractable curtain motor as claimed in claim 1, wherein the speed reduction assembly comprises a first-stage planet wheel and a second-stage planet wheel, and the first-stage planet wheel and the second-stage planet wheel are connected through a first-stage support and a second-stage support respectively.