CN111706205B

CN111706205B - An electric pulley

Info

Publication number: CN111706205B
Application number: CN202010694832.3A
Authority: CN
Inventors: 傅海; 曹智惟
Original assignee: Shenzhen Paisuo Industrial Co ltd
Current assignee: Shenzhen Paisuo Industrial Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2025-04-25
Anticipated expiration: 2040-07-17
Also published as: CN111706205A

Abstract

The present invention is applicable to the technical field of door and window accessories, and provides an electric pulley, including a main housing, a lifting wheel frame connected to the main housing and capable of lifting and lowering relative to the main housing, and a pulley connected to the lifting wheel frame, wherein a clutch component is arranged in the main housing, and the lifting wheel frame is connected to a power component for driving the clutch component to move and the pulley to rotate, wherein the power component comprises a transmission gear set and a power motor; the clutch component comprises a lifting rack that can mesh with the transmission gear set and is driven to slide by the transmission gear set, a rack clutch block driven by the lifting rack, an active inclined block that can be driven by the rack clutch block and can drive the lifting wheel frame to lift and lower, and a passive inclined block connected to the main housing, wherein a lifting guide structure is arranged between the active inclined block and the passive inclined block. The electric pulley provided by the present invention has a good user experience.

Description

Electric pulley

Technical Field

The invention belongs to the technical field of door and window accessories, and particularly relates to an electric pulley.

Background

The current mainstream electric sliding door is installed complicated, and electric pulley structure stands out outside the frame fan, if the procedure trouble or outage takes place, electric pulley can block, and user experience is not good enough.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an electric pulley with good user experience.

The electric pulley comprises a main shell, a lifting wheel frame connected in the main shell and capable of lifting relative to the main shell, and a pulley connected to the lifting wheel frame, wherein a clutch part is arranged in the main shell, the lifting wheel frame is connected with a power part for driving the clutch part to act and the pulley to rotate, the power part comprises a transmission gear set and a power motor, the clutch part comprises a lifting rack meshed with the transmission gear set and driven to slide by the transmission gear set, a rack clutch block driven by the lifting rack, a driving oblique block driven by the rack clutch block and capable of driving the lifting wheel frame to lift, and a driven oblique block connected to the main shell, and a lifting guide structure is arranged between the driving oblique block and the driven oblique block.

The transmission gear set comprises a driving gear driven by the power motor and a driven gear set capable of planetary rotation relative to the driving gear, the driven gear set is meshed with the driving gear, and the lifting rack is meshed with the driven gear set.

The lifting rack comprises a lifting rack body, and is characterized in that an inclined block is integrally formed at the upper end of the lifting rack body, an inclined hole matched with the inclined block is formed in the rack clutch block, and an inclined support block with one side capable of being abutted to the inclined hole is further arranged at the upper end of the inclined block.

Specifically, the both sides of lifting rack are provided with the guide post, initiative sloping block is provided with the confession the guide post stretches into and the vertical sliding connection spout that slides up and down, initiative sloping block sliding connection in the lifting wheel frame.

The driving inclined block is connected with a lock pin, the driving inclined block is propped against the driven inclined block forwards, the driving inclined block descends and can further compress the power storage elastic piece to store the power of the power storage elastic piece, the power storage elastic piece releases elasticity and reversely pushes the driven inclined block to back to drive the lock pin to back to lock the lifting rack to be separated from a state meshed with the transmission gear set, and the unlocking block pushes the lock pin to back to unlock the lock pin to enable the lifting rack to be meshed with the transmission gear set again after the power storage elastic piece pushes the driven module, the driving inclined block, the lifting rack, the rack clutch block and the lock pin to back.

Specifically, the driving inclined block is connected with a clamping shaft, the lifting wheel frame is provided with a clamping groove for clamping the clamping shaft, and the clamping groove comprises a rising groove and a backstop groove communicated with the upper part of the rising groove.

Specifically, the lifting wheel frame is provided with a stop surface for stopping the rack clutch block, and the front inclined surface of the inclined block in the lifting rack acts on the front inclined surface of the inclined hole in the rack clutch block, so that the lifting rack moves upwards to be disengaged from the driven gear set.

The driven gear set comprises a first bevel gear, a second bevel gear and a third bevel gear, wherein the pulleys are provided with two groups, the two groups of pulleys are respectively connected with the first gear and the second gear, the first bevel gear is meshed with the worm gear, the second bevel gear is meshed with the first bevel gear, the first gear is meshed between the second bevel gear and the third bevel gear, the second gear is meshed with the third bevel gear, the first gear, the second bevel gear and the third bevel gear are connected with the lifting wheel frame through connecting, the first bevel gear is connected with the main shell, and the first bevel gear and the second bevel gear are connected through a connecting piece in a rotating manner;

The power motor is a brushless motor, a motor fixing flange is arranged in the main shell, the worm gear is coaxially connected with a first straight gear, a rotating shaft of the brushless motor is connected with a second straight gear, and the first straight gear is meshed with the second straight gear.

Specifically, the electric pulley further comprises an unlocking part, the unlocking part comprises an electromagnetic part and an unlocking block driven by the electromagnetic part, and the unlocking block is provided with an unlocking inclined surface used for driving the clamping shaft to exit the retaining groove and slide at the bottom of the rising groove.

Specifically, the lifting guide structure comprises a first inclined plane which is arranged at the front end of the active inclined block and is obliquely upwards arranged, and a second inclined plane which is arranged at the front end of the passive inclined block and is obliquely downwards arranged.

The electric pulley provided by the invention is matched with the lifting guide structure, and can be driven to rotate and lift only by one power part, so that the electric pulley can not be blocked, and the user experience is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an electric pulley according to an embodiment of the present invention;

fig. 2 is a schematic plan view of an electric pulley according to an embodiment of the present invention;

fig. 3 is an exploded perspective view of an electric pulley according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a rack clutch block in an electric pulley according to an embodiment of the present invention;

Fig. 5 is a schematic perspective view of a rack clutch block in an electric pulley according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a lifting rack in an electric pulley according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a lifting wheel frame in an electric pulley according to an embodiment of the present invention;

fig. 8 is a schematic plan view of a lifting wheel frame in an electric pulley according to an embodiment of the present invention;

fig. 9 is a schematic plan view of an electric pulley according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of an electric pulley according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of an electric pulley according to an embodiment of the present invention;

Fig. 12 is a schematic cross-sectional view of an electric pulley according to an embodiment of the present invention;

Fig. 13 is a schematic cross-sectional view of an electric pulley according to an embodiment of the present invention;

fig. 14 is a schematic perspective view of an active oblique block and a passive oblique block in an electric pulley according to an embodiment of the present invention;

fig. 15 is a schematic plan view of a power member and a drive gear set in an electric pulley according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 15, the electric pulley provided by the embodiment of the invention comprises a main housing 1, a lifting wheel frame 2 connected in the main housing 1 and capable of lifting relative to the main housing 1, and a pulley 3 connected to the lifting wheel frame 2, wherein a clutch part is arranged in the main housing 1, the lifting wheel frame 2 is connected with a power part for driving the clutch part to act and the pulley 3 to rotate, the power part comprises a transmission gear set and a power motor 4, the clutch part comprises a lifting rack 5 meshed with the transmission gear set and driven to slide by the transmission gear set, a rack clutch block 6 driven by the lifting rack 5, a driving bevel block 7 driven by the rack clutch block 6 and capable of driving the lifting wheel frame 2 to lift, and a driven bevel block 8 connected to the main housing 1, a lifting guide structure is arranged between the driving bevel block 7 and the driven bevel block 8, and the lifting wheel frame 2 and the clutch part can be lifted by only one power part to cooperate with the lifting guide structure, so that a user can drive the pulley 3 to rotate and the electric pulley can not feel dead.

Specifically, the transmission gear set comprises a driving gear driven by the power motor 4 and a driven gear set capable of rotating relative to the driving gear in a planetary mode, the driven gear set is meshed with the driving gear, the lifting rack 5 is meshed with the driven gear set, namely, the driven gear set can rotate around the driving gear in a planetary mode, the pulley 3 can be self-adaptive to the track, and the lifting (manual mode) and the lowering (electric mode) of the lifting wheel frame 2 can be realized without additionally arranging a special motor.

Specifically, the upper end of the lifting rack 5 is integrally formed with one, two or more tilting blocks 51, and in this embodiment, two tilting blocks 51 are provided, and the tilting block 51 tilts towards the front end of the lifting rack 5. The rack clutch block 6 is provided with an inclined hole 61 for matching with the inclined block 51, and the inclined hole 61 is matched with the inclined block 51. The inclined hole 61 has a front side inner wall 611 (near the front end of the rack clutch block 6) and a rear side inner wall 612. The front ends of the active oblique blocks 7 and the front ends of the passive oblique blocks 8 can be arranged opposite to each other.

Specifically, the upper end of the inclined block 51 is further provided with an inclined support block 52, one side of which can be abutted against the inclined hole 61, and the inclined support block 52 can be clamped on the rear inner wall 612 of the inclined hole 61.

Specifically, guide posts 53 are disposed on two sides of the lifting rack 5, the driving inclined block 7 is provided with a longitudinal connecting chute 71 for the guide posts 53 to extend into and slide up and down, and the driving inclined block 7 is slidably connected to the lifting wheel frame 2.

Specifically, the passive sloping block 8 is connected to the main housing 1, a lifting guiding inclined plane is provided at the front end of the passive sloping block 8, a pre-pressed force-accumulating elastic element is provided at the rear end of the passive sloping block 8, that is, the force-accumulating elastic element is always elastic, so that the passive sloping block 8 always has a reverse thrust, the force-accumulating elastic element can be a pre-pressed spring 81, and the pulley 3 can adapt to the fluctuation of the track by setting the force-accumulating elastic element. The driving inclined block 7 is connected with a lock pin, the driving inclined block 7 is propped against the driven inclined block 8 forwards, the driving inclined block 8 descends and can further compress a power storage elastic piece (a spring 81) to store energy, when the power storage elastic piece releases elasticity and reversely pushes the driven inclined block 8 to retreat, the lock pin is driven to retreat to lock the lifting rack 5 from being meshed with the transmission gear set, when the lock pin is pushed by the unlocking block to unlock, the power storage elastic piece reversely pushes the driven module 8, the driving inclined block 7, the lifting rack 5, the rack clutch block 6 and the lock pin to retreat, so that the lifting rack 5 is meshed with the transmission gear set again, and the meshing/decomposition repeatability and the movement closed loop are realized.

Specifically, the driving swash block 7 is connected with a stop shaft 91, the lifting wheel frame 2 has a clamping groove for the stop shaft 91 to be clamped in, and the clamping groove comprises a rising groove and a backstop groove communicated with the upper part of the rising groove.

Specifically, the lifting wheel frame 2 has a stop surface for stopping the rack clutch block 6, and the front inclined surface of the inclined block 51 in the lifting rack 5 acts on the front inclined surface of the inclined hole 61 in the rack clutch block 6, so that the lifting rack 5 moves upwards to be disengaged from the driven gear set.

Specifically, the power motor 4 is connected with a spur gear 41, the spur gear 41 is connected with a worm gear 42, the driven gear set comprises a first helical gear 43, a second helical gear 44 and a third helical gear 45, the pulley 3 is provided with two groups, the two groups are respectively connected with a first gear 46 and a second gear 47, the first helical gear 43 is meshed with the worm gear 42, the second helical gear 44 is meshed with the first helical gear 43, the first gear 46 is meshed between the second helical gear 44 and the third helical gear 45, the second gear 47 is meshed with the third helical gear 45, the first, second and third helical gears 46, 44 and 45 are connected with the lifting wheel frame 2 through being connected with the first helical gear 43, the first helical gear 43 and the second helical gear 44 are connected with each other through a connecting piece 48 in a rotating mode, the power motor 4 is a brushless motor, a motor fixing flange 49 is arranged in the main housing 1, the second helical gear 47 is connected with the first helical gear 42, and the first straight gear is meshed with the second helical gear.

Specifically, the active oblique block 7 may be connected with a lock pin, the lock pin may be used to limit the rack clutch block 6, the active oblique block 7 may be provided with an inverted "L" shaped stop slot, and the lock pin may be clamped in the stop slot and located under the rack clutch block 6.

Specifically, the electric pulley further comprises an unlocking component, the unlocking component comprises an electromagnetic piece 31 and an unlocking block 32 driven by the electromagnetic piece 31, and the unlocking block 32 is provided with an unlocking inclined plane for driving the stop shaft 91 to exit the stop groove and slide at the bottom of the lifting groove. The solenoid 31 may be a solenoid pushrod. The unlocking block 32 has an unlocking slope for pressing the lock pin to move the lock pin downward when it is forward. In a specific application, an electromagnetic push rod and an unlocking block 32 may be disposed at the rear end of the main housing 1. The lifting rack 5 can be arranged below the rack clutch block 6, and the rack clutch block 6 can be slidably connected to the driving oblique block 7. The lifting rack 5 may be located above the third bevel gear 45.

Specifically, a transverse sliding rail structure may be provided between the passive swash block 8 and the main housing 1. A transverse sliding structure is arranged between the driving oblique block 7 and the rack clutch block 6. A longitudinal sliding structure is arranged between the lifting rack 5 and the driving inclined block 7.

Specifically, the lifting guide structure comprises a first inclined plane which is arranged at the front end of the active inclined block 7 and is obliquely upwards arranged, and a second inclined plane which is arranged at the front end of the passive inclined block 8 and is obliquely downwards arranged.

Specifically, the bottom of the main casing 1 may be connected with a bottom closure plate 11.

In specific applications, the steps of the electric pulley track-following and electric driving can be referred to as follows:

the power motor 4 rotates to drive the first bevel gear 43 to rotate (as shown in the figure, the first bevel gear 43 rotates anticlockwise) so as to drive the lifting rack 5 to move forwards (i.e. to the right in the figure), at this time, the bottom surface of the rack clutch block 6 contacts with the top surface of the inclined block 51 on the lifting rack 5, so that the lifting rack 5 keeps meshed with the third bevel gear 45, and the guide post 53 of the lifting rack 5 drives the driving inclined block 7 and the rack clutch block 6 to move forwards together. In the moving process, the active oblique block 7 and the passive oblique block 8 are extruded, under the constraint of the lifting guide structure, when the active oblique block 7 abuts against the passive oblique block 8 and continues to move rightwards, the active oblique block 7 moves downwards under the action of the lifting guide structure, so that the active oblique block 7 and the lifting wheel frame 2 move downwards together, the pulley 3 (PU wheel) is driven to contact the track, and the redundant travel presses the spring 81 behind the passive oblique block 8 to store the force. During the movement, the lock pin is dragged by the driving inclined block 7 to move upwards under the action of the inclined surface of the lifting wheel frame 2. When the driving oblique block 7 continues to move, the front stopping surface (which may be the front end surface 601) of the rack clutch block 6 contacts with the front stopping surface (201) of the lifting wheel frame 2, so that the rack clutch block 6 moves relatively to the driving oblique block 7 and the lifting rack 5, the front inner wall 611 (inclined surface) of the inclined hole 61 on the rack clutch block 6 acts on the front end inclined surface (inclined surface 501) of the inclined block 51 on the lifting rack 5, so that the lifting rack 5 moves upwards, and the lifting rack 5 can be disengaged from the third oblique gear 45. After the gear is disengaged, the driving inclined block 7, the lifting rack 5, the rack clutch block 6 and the lock pin are quickly retreated (leftwards) under the action of the spring 81 behind the driven inclined block 8, and the lock pin is stopped by the stop groove rear end surface (202) of the lifting wheel frame 2. Further, the lifting rack 5 and the third bevel gear 45 are kept disengaged, the pulley 3 is kept in a rail-mounted state, and the spring 81 is kept in a power-storage state, so that the pulley 3 has an adaptive capacity to rail fluctuation, and at this time, the electric mode can be switched.

In a specific application, the steps of derailment of the electric pulley and manual mode can be referred to as follows:

After the motor stops rotating, the electromagnetic piece 31 (electromagnetic push rod) of the unlocking component drives the unlocking block 32 to move forwards (rightwards) under the instruction, the unlocking inclined surface of the unlocking block 32 presses the lock pin to enable the lock pin to move downwards, the lock pin is separated from the back end surface (203) of the back stop groove of the lifting rack 2, under the action of the spring 81, the driving inclined block 7, the lifting rack 5, the rack clutch block 6 and the lock pin are retreated, the back stop surface (such as the tail end surface, 602) of the rack clutch block 6 collides with the back stop surface (202) of the lifting rack 2, the rack clutch block 6 is prevented from retreating, the back inner wall 612 of the rack clutch block 6 presses the back end inclined surface (502) of the upper inclined block 51 of the lifting rack 5 in the continuous retreating movement process of the lifting rack 5, the lifting rack 5 is lowered, a certain meshing pressure is kept under the action of the spring 81, the first bevel gear 43 is reversed under the drive of the brushless motor, the third bevel gear 45 is meshed with the lifting rack 5 and drives the lifting rack 5, the driving bevel block 7 and the lock pin to move leftwards, the spring 81 of the driven bevel block 8 is released, after the lifting rack 5, the driving bevel block 7 and the lock pin mechanism are integrally stopped by the rear stop surface (202) of the lifting wheel frame 2, the second bevel gear 44 in the lifting wheel frame 2 is locked in transmission rotation, the first bevel gear 43 continues to rotate clockwise, the lifting wheel frame 2 is in planetary motion by taking the first bevel gear 43 as a circle under the constraint of the connecting piece 48, and the pulley 3 is lifted upwards to be separated from the track, so that the manual mode is changed.

According to the electric pulley provided by the embodiment of the invention, the pulley 3 can be driven to rotate and lift only by one power component in cooperation with the lifting guide structure, the electric pulley cannot be blocked, and the user experience is good.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

Claims

1. An electric pulley is characterized by comprising a main shell, a lifting wheel carrier which is connected in the main shell and can lift relative to the main shell, and a pulley which is connected to the lifting wheel carrier, wherein a clutch part is arranged in the main shell, the lifting wheel carrier is connected with a power part which is used for driving the clutch part to act and the pulley to rotate, the power part comprises a transmission gear set and a power motor, the clutch part comprises a lifting rack which can be meshed with the transmission gear set and is driven to slide by the transmission gear set, a rack clutch block which is driven by the lifting rack, a driving bevel block which can be driven by the rack clutch block and can drive the lifting wheel carrier to lift, and a driven bevel block which is connected to the main shell, a lifting guide structure is arranged between the driving bevel block and the driven bevel block, an inclined block is integrally formed at the upper end of the lifting rack, the upper end of the inclined block is also provided with an inclined support block, one side of the inclined support block can be propped against the inclined hole, and the transmission motor comprises a driving bevel gear set, a driving bevel gear and a driven bevel gear set which can be meshed with a third bevel gear, and a driven bevel gear set which can be driven by the driving bevel gear and a third bevel gear, and a driven bevel gear set which can be meshed with the driving bevel gear and a lifting bevel gear.

2. The motorized pulley as recited in claim 1, wherein the driven gear set is engaged with the drive gear and the lifting rack is engaged with the driven gear set.

3. An electric pulley as claimed in claim 2, wherein guide posts are provided on both sides of the lifting rack, the driving swash block is provided with a longitudinal connecting chute into which the guide posts extend and which slides up and down, and the driving swash block is slidably connected to the lifting wheel frame.

4. The electric pulley according to claim 3, wherein the driven inclined block is connected to the main housing, a lifting guide inclined plane is arranged at the front end of the driven inclined block, a pre-pressed power storage elastic piece is arranged at the rear end of the driven inclined block, the driving inclined block is connected with a lock pin, the driving inclined block is propped against the driven inclined block forwards, the driving inclined block descends and can further compress the power storage elastic piece to store power of the power storage elastic piece, the power storage elastic piece releases elasticity and drives the lock pin to retract to lock the lifting rack from being meshed with the transmission gear set when the driven inclined block is reversely pushed by the unlocking block to unlock the lock pin, and the lifting rack is reversely pushed by the power storage elastic piece to retract the driven module, the driving inclined block, the lifting rack, the rack clutch block and the lock pin to enable the lifting rack to be meshed with the transmission gear set again when the unlocking block is unlocked.

5. The electric pulley as claimed in claim 4, wherein the driving swash block is connected with a locking shaft, the lifting wheel frame has a locking groove for locking the locking shaft, and the locking groove includes a rising groove and a stopping groove communicated with the upper portion of the rising groove.

6. An electric block as claimed in claim 5, wherein the lifting frame has a stop surface for stopping the rack clutch block, and a front inclined surface of the inclined block in the lifting rack acts on a front inclined surface of the inclined hole in the rack clutch block to move the lifting rack upward to disengage from the driven gear set.

7. The electric pulley as in claim 6, wherein said power motor is connected to a spur gear, said spur gear being connected to a worm wheel; the pulleys are provided with two groups, and the two groups of pulleys are respectively connected with a first gear and a second gear; the first bevel gear is meshed between the second bevel gear and the third bevel gear, the second bevel gear is meshed with the third bevel gear, the first gear, the second bevel gear and the third bevel gear are connected with the lifting wheel frame, the first bevel gear is connected with the main shell, and the first bevel gear is rotationally connected with the second bevel gear through a connecting piece;

8. The electric pulley as claimed in claim 7, further comprising an unlocking member comprising an electromagnetic member and an unlocking block driven by the electromagnetic member, the unlocking block being provided with an unlocking slope for driving the detent shaft to exit the retaining groove and slide on the bottom of the rising groove.

9. The electric pulley according to claim 1, wherein the elevation guiding structure comprises a first inclined surface which is provided at the front end of the active inclined block and is provided obliquely upward, and a second inclined surface which is provided at the front end of the passive inclined block and is provided obliquely downward.