CN110761699A

CN110761699A - Backdrop curling device

Info

Publication number: CN110761699A
Application number: CN201910946926.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Chonghua Technology Yongkang Co Ltd
Current assignee: Chonghua Technology Yongkang Co Ltd
Priority date: 2019-10-07
Filing date: 2019-10-07
Publication date: 2020-02-07
Anticipated expiration: 2039-10-07
Also published as: CN110761699B

Abstract

The invention provides a backdrop curling device which is used for curling a backdrop and comprises a transmission locking device for curling. The driving locking device for curling comprises: a support; a drive shaft; the inner cavity of the first winding wheel is provided with a first sliding surface, the inner cavity of the second winding wheel is provided with a second sliding surface, the end part of the first sliding surface is provided with a first clamping table, the end part of the second sliding surface is provided with a second clamping table, and a first brake device is arranged on the outer edge of the first winding wheel; the second brake device is arranged on the outer edge of the second winding wheel; the first sliding sleeve and the second sliding sleeve are coaxially arranged on the driving shaft, and both the first sliding sleeve and the second sliding sleeve can axially move on the driving shaft. The invention has low cost and energy saving.

Description

Backdrop curling device

Technical Field

The invention relates to a backdrop curling device.

Background

The canopy is generally a horizontally disposed curtain, and usually has a length of 3 m, 5 m, 6 m or more, and if the canopy is pulled or retracted in a horizontal direction, the canopy may sag under the influence of gravity if no external intervention is performed. At present, in the process of drawing and curling the backdrop, in order to enable the backdrop to be horizontally straightened, a motor is required to be respectively arranged on two sides of the backdrop, one motor is used for curling, and the other motor is used for drawing. One side of the backdrop is curled by a cloth roller driven by a motor, the other side of the backdrop is pulled by a rolling rope, and the rolling rope is wound by a rope roller. When one motor actively drives the cloth roller to curl or drives the rope roller to pull open, the other motor completes passive tensioning, and the backdrop can be prevented.

Set up two motors, on the one hand, the cost is high, and on the other hand, need lay the motor respectively in two places, occupy the place, increase the time of installation.

In summary, the following problems exist in the prior art: the two motors are adopted to draw and draw the curled backdrop with high cost.

Disclosure of Invention

The invention provides a backdrop curling device to replace a motor with a pre-tightening function.

To this end, the invention proposes a backdrop curling device for curling a backdrop, the backdrop curling device comprising a drive locking device for curling, the drive locking device for curling comprising:

a support;

a drive shaft extending through the bracket;

the first winding wheel and the second winding wheel are coaxially arranged on the driving shaft side by side, the first winding wheel and the second winding wheel are supported on the support, a first sliding surface is arranged in an inner cavity of the first winding wheel, a second sliding surface is arranged in an inner cavity of the second winding wheel, a first clamping table is arranged at the end part of the first sliding surface, a second clamping table is arranged at the end part of the second sliding surface, and the first sliding surface and the second sliding surface are both helicoids;

the first brake device is arranged on the outer edge of the first winding wheel;

the second brake device is arranged on the outer edge of the second winding wheel;

the first sliding sleeve and the second sliding sleeve are coaxially arranged on the driving shaft, the first sliding sleeve is positioned in the first rolling wheel, the second sliding sleeve is positioned in the second rolling wheel, and the first sliding sleeve and the second sliding sleeve can be axially movably arranged on the driving shaft;

the first connecting spring is arranged between the first sliding sleeve and the second sliding sleeve;

the first boss is arranged on the first sliding sleeve and can move to the first clamping table along the first sliding surface;

the second boss is arranged on the second sliding sleeve and can move to a second clamping table along the second sliding surface;

the spiral direction of the first sliding surface is opposite to the spiral direction of the second sliding surface;

the backdrop curling device further comprises: the awning comprises a driving shaft, a motor, a first side and a second side, wherein the driving shaft is connected with the motor;

the motor is positioned at the first end of the backdrop, and the first winding wheel and the second winding wheel are positioned at the second end of the backdrop;

first winding wheel is the serving wheel, the second winding wheel is the serving wheel, the first side of day curtain is connected on the serving wheel, the drive shaft level sets up, the motor sets up with the transmission locking device that is used for curling the first side of day curtain the second side of day curtain is equipped with the support and connects the fixed pulley of serving.

Further, the first brake device includes: the first pre-tightening bolt is used for controlling the tightness of the first opening, and a first pre-tightening spring is arranged on the first pre-tightening bolt;

the second brake device includes: the second pre-tightening bolt is used for controlling tightness of the second opening and is provided with a second pre-tightening spring.

Further, the transmission locking device for curling further comprises: and a switching device for switching the tightness of the first brake device and the second brake device, wherein the switching device is connected with the driving shaft, and the switching device is connected with the first brake device and the second brake device.

Further, the first arc section and the first opening are located in a first plane, the second arc section and the second opening are located in a second plane, and the first plane is parallel to the second plane;

the switching device includes:

a turntable mounted on said drive shaft, said first reel being located between said second reel and said turntable, said turntable having a raised tooth on an edge thereof;

the deflector rod is arranged in the first opening and the second opening and is vertical to the first plane and the second plane;

the first shifting block is arranged on the shifting lever, the first shifting block is positioned in the first opening, and the width of the first shifting block is smaller than the length of the first shifting block;

the first shifting block is arranged in the first opening, and the width of the first shifting block is smaller than the length of the first shifting block;

the length direction of the first shifting block is vertical to the length direction of the second shifting block, and the width direction of the first shifting block is vertical to the width direction of the second shifting block;

the shifting fork base is arranged on the shifting lever, and the first shifting block is positioned between the shifting fork base and the second shifting block;

the first shifting tooth and the second shifting tooth are respectively hinged to the shifting fork base, and a third connecting spring is arranged between the first shifting tooth and the second shifting tooth; a swinging groove for accommodating the first shifting tooth and the second shifting tooth to swing is formed in the shifting fork base, a third clamping table for limiting the bottom of the first shifting tooth is arranged on one side of the swinging groove, and a fourth clamping table for limiting the bottom of the second shifting tooth is arranged on the other side of the swinging groove;

the first shifting tooth and the second shifting tooth are positioned in the same plane with the rotary table, and the tops of the first shifting tooth and the second shifting tooth are positioned in the rotating area of the convex tooth; the top of the first shifting tooth is provided with: the first shifting part is positioned on the first side of the first shifting tooth, and the first sliding part is positioned on the second side of the first shifting tooth;

the top of the second poking tooth is provided with: the second shifting part is positioned on the first side of the second shifting tooth, and the second sliding part is positioned on the second side of the second shifting tooth; the first shifting part and the second shifting part are sequentially arranged between the first sliding part and the second sliding part; the first shifting teeth and the second shifting teeth are arranged in opposite directions;

the first shifting part drives the shifting lever to rotate forward under the circumferential pressure of the forward rotation of the convex teeth; the second sliding part swings in the swing groove in the positive direction under the circumferential pressure of the positive rotation of the convex teeth;

the second shifting part drives the shifting lever to rotate reversely under the circumferential pressure of the reverse rotation of the convex teeth; the first sliding part swings reversely in the swing groove under the circumferential pressure of the reverse rotation of the convex teeth.

Further, first winding wheel and second winding wheel all cup joint through the bearing on the drive shaft, the figure of first boss and second boss is two, two first boss is about the drive shaft is the axisymmetric setting, two the second boss is about the drive shaft is the axisymmetric setting, first circular arc section and second circular arc section are the brake block, the figure of dogtooth is a plurality of.

Further, the first reel includes: the winding device comprises a first disc (38) and a second disc (30), wherein the first disc is arranged in the lateral direction of the second disc side by side, the inner edge of the first arc section wraps the outer edge of the first disc, and the second disc is provided with a mounting groove for accommodating a wound object;

the second reel includes: the third disc and the fourth connection pad, the third disc sets up side by side the side direction of fourth connection pad, the inner edge parcel of second circular arc section is lived the outer fringe of third disc (58), be equipped with the location platform on the outer fringe of fourth connection pad (50).

Further, the awning curling device further comprises: the cloth winding device comprises a backdrop curled on the cloth rolling wheel and a rope winding curled on the rope rolling wheel, wherein the rope winding is connected with the second side of the backdrop through the fixed pulley.

According to the invention, one of the first sliding sleeve or the second sliding sleeve on the driving shaft is driven to move along the axis of the driving shaft (the driving shaft positively rotates to drive one sliding sleeve and reversely rotates to drive the other sliding sleeve) through the rotation of the driving shaft, and the first sliding sleeve moves to the first clamping table along the first sliding surface or the second sliding sleeve moves to the second clamping table along the second sliding surface, so that one of the first rolling wheel or the second rolling wheel is driven to rotate actively (the driving shaft positively rotates to drive one rolling wheel and reversely rotates to drive the other rolling wheel).

The first reel and the second reel may be rotated in a direction opposite to the first direction. No matter which one of the first winding wheel and the second winding wheel rotates, who is the first winding wheel and the second winding wheel is active, who is passive, the first winding wheel and the second winding wheel are rubbed by the first brake device or the second brake device, the passive rotating winding wheel is rubbed by people, random rotation or looseness of the passive rotating winding wheel is avoided, pre-tightening of the passive rotating winding wheel is achieved, and the function of pre-tightening of the motor is replaced.

If make what connect on the second winding wheel be the canopy, the material of canopy is the cloth, for example is nylon cloth, what connect on the first winding wheel is the serving, and the material of serving is nylon for example, only needs a motor just can accomplish the pretension of first winding wheel and second winding wheel in curling process, need not the second motor.

Furthermore, in order to apply pretightening force only to the passive rotating winding wheel and not to the active rotating winding wheel, the pretightening force relation between the active rotating winding wheel and the passive rotating winding wheel is dynamically adjusted by arranging a switching device for switching the tightness of the first brake device and the second brake device, so that the active rotating winding wheel can smoothly rotate, the resistance is reduced, and the service lives of the first brake device and the second brake device are prolonged.

Furthermore, the transmission locking device for curling of the invention can realize the angle adjustment of outdoor blinds, the traditional outdoor blinds realize the angle adjustment of each blind of the whole blind by the contact between the bottommost blind and the ground, the traditional adjustment mode is unstable and unreliable, and the angle adjustment range is limited, but the transmission locking device for curling of the invention can realize the stable adjustment of the angle of the outdoor blinds, and can adjust the blinds arranged in various directions.

Drawings

FIG. 1 is a schematic view of the overall structure of a drive locking device for crimping according to an embodiment of the present invention;

FIG. 2 is a side view of a drive-lock mechanism for crimping according to an embodiment of the present invention;

FIG. 3 is a schematic sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of a first angle switching device of an embodiment of the present invention with the bracket removed;

FIG. 5 is a schematic structural view of a second angle switching device of the embodiment of the present invention with the bracket removed;

FIG. 6 is a schematic diagram of a second reel of an embodiment of the present invention showing a positioning table;

FIG. 7 is a schematic structural view of a drive shaft of an embodiment of the present invention;

FIG. 8 is a schematic view of a connection structure of the driving shaft and the first reel according to the embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a shift lever according to an embodiment of the present invention;

FIG. 10 is a schematic diagram illustrating the operation of the shift lever according to the embodiment of the present invention;

FIG. 11 is a perspective view of an outdoor blind curling device according to an embodiment of the invention;

fig. 12 is a schematic structural view of a awning curling device according to an embodiment of the invention;

fig. 13 is a front view of an outdoor blind curling device according to an embodiment of the invention.

The reference numbers illustrate:

100. a drive lock for crimping; 11. a support; 13. a support; 2. a drive shaft; 20. positioning the clamping table; 3. a first reel; 30. a second disc; 38. a first disc; 31. a first arc segment; 32. a first connecting sleeve; 33. a first opening; 35. a first pre-tightening spring; 36. a first sliding surface; 360. a first chuck table; 37. a first pre-tightening bolt; 300. mounting grooves; 5. a second reel; 50. a fourth connecting disc; 58. a third disc; 56. a second sliding surface; 560. a second chuck table; 500. louver blades; 520. a positioning table; 501. a motor; 51. a second arc segment; 52. a second connecting sleeve; 53. a second opening; 55. a second pre-tightening spring; 57. a second pre-tightening bolt; 71. a first sliding sleeve; 72. a first connecting spring; 73. a second sliding sleeve; 710. a first boss; 730. a second boss; 8. a switching device; 81. a turntable; 810. a convex tooth; 83. a deflector rod; 85. a first shifting block; 87. a second shifting block; 89. a shifting fork base; 890. a swinging groove; 891. a first shifting tooth; 892. a third connecting spring; 893. a second shifting tooth; 8901. a third clamping table; 8903. a fourth chuck table; 8911. a first toggle part; 8913. a first sliding section; 8931. a second toggle part; 8933. a second sliding section; 895. a hinge shaft; 400. rope rolling; 610. walls (walls); 611. a fixed pulley; 900. curtain (awning); 41. a bearing; 42. a bearing; 43. a bearing; 44. and a bearing.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the present invention provides a transmission locking device for curling, which can be used for pre-tightening two rotating wheels having an active and passive transmission relationship or an active and direct linkage relationship, and ensures that the passively rotating wheels do not rotate randomly, thereby ensuring that a winding object (such as a rolling rope or a curtain or a louver) driven by the passively rotating wheels always keeps a tensioned state and overcomes the sagging caused by gravity.

As shown in fig. 1, 2 and 3, the driving locking device for curling of the present invention includes:

the bracket 11 is used for providing support for other parts of the transmission locking device for rolling, and the bracket 11 is made of metal materials, can be arranged on a wall or a building, and can also be arranged on a support 13 and is arranged on the wall or the building through the support 13;

as shown in fig. 4 and 5, the driving shaft 2 penetrates the bracket 11;

as shown in fig. 3, the first reel 3 and the second reel 5 are coaxially arranged side by side on the driving shaft 2, one of the first reel 3 and the second reel 5 is a driving wheel, and the other is a driven wheel, and the driving wheel, the driven wheel and the driven wheel are switchable or adjustable or replaceable;

as shown in fig. 3, the first reel 3 is supported on the driving shaft 2 by a bearing 41, for example, and the second reel 5 is supported on the driving shaft 2 by a bearing 43, for example, and the first reel 3 is supported on the bracket 11 by a bearing 42, for example, and the second reel 5 is supported on the bracket 11 by a bearing 44, for example, so that the first reel 3 and the second reel 5 can be ensured to rotate and be supported;

as shown in fig. 8, the inner cavity of the first reel has a first sliding surface 36, the end of the first sliding surface has a first clamping platform 360, as shown in fig. 6, the inner cavity of the second reel has a second sliding surface 56, the end of the second sliding surface has a second clamping platform 560, the first sliding surface 36 and the second sliding surface 56 are both helicoids, the included angle between each helicoid and the axis of each reel is greater than 0 degree, less than 180 degrees, for example 90 degrees, each reel can be provided with two helicoids, which is convenient for sensitive adjustment;

the first brake device, such as a brake pad or a friction plate, is arranged on the outer edge of the first reel 3, and can ensure that the driving rotation and/or the driven rotation of the first reel 3 can be subjected to preset resistance by applying pretightening force on the first brake device, so that the first reel can be prevented from rotating freely at least during the driven rotation;

the second brake device, such as a brake pad or a friction plate, is arranged on the outer edge of the second winding wheel 5, and by applying pretightening force on the second brake device, the active rotation and/or the passive rotation of the second winding wheel 5 can be subjected to preset resistance, so that the second winding wheel can be prevented from rotating randomly at least during the passive rotation;

in the invention, the first brake device aims at providing rotation resistance and does not aim at preventing the first reel from rotating, so that the first reel is not locked, and the second brake device is arranged in the same way;

as shown in fig. 3, fig. 7 and fig. 8, a first sliding sleeve 71 and a second sliding sleeve 73 coaxially disposed on the driving shaft 2, the first sliding sleeve 71 is located in the first reel 3, the second sliding sleeve 73 is located in the second reel 5, and both the first sliding sleeve and the second sliding sleeve are axially movably disposed on the driving shaft 2, as shown in fig. 7, a positioning clamping table 20 is disposed on the driving shaft 2, and the driving shaft 2 drives the first sliding sleeve 71 and the second sliding sleeve 73 to rotate through the positioning clamping table 20;

as shown in fig. 3 and 8, the first boss 710 is disposed on the first sliding sleeve 71 and can move to the first clamping platform 360 along the first sliding surface 36, and when the first boss 710 reaches the first clamping platform 360, the first boss 710 clamps the first clamping platform 360, so as to drive the first reel to rotate along with the driving shaft;

a second boss 730, as shown in fig. 3 and fig. 6, disposed on the second sliding sleeve 73 and capable of moving to the second clamping platform 560 along the second sliding surface 56, where the second boss 730 reaches the second clamping platform 560, the second boss 730 clamps the second clamping platform 560, so as to drive the second reel to rotate along with the driving shaft;

the spiral direction of the first sliding surface 36 is opposite to the spiral direction of the second sliding surface 56, so that the driving shaft 2 rotates forward to drive the first boss 710 to move along the first sliding surface 36, the first sliding sleeve 71 moves in the axial direction of the driving shaft 2, and the second boss 730 does not move on the second sliding surface 56 at the same time, thereby preventing the second sliding sleeve 73 from moving in the same direction relative to the driving shaft 2;

on the contrary, when the driving shaft 2 rotates reversely, the driving shaft 2 reversely drives the second boss 730 to move along the second sliding surface 56, the second sliding sleeve 73 moves along the axial direction of the driving shaft 2, but the first boss 710 does not move along the first sliding surface 36, so that the first sliding sleeve 71 is prevented from moving along the same direction relative to the driving shaft 2;

the spiral direction of the first sliding surface 36 is opposite to the spiral direction of the second sliding surface 56, so as to ensure that at most only one clamping table capable of clamping the first sliding surface 36 or the second sliding surface 56 is arranged on the first boss 710 or the second boss 730, that is, only one winding wheel is driven to rotate actively every time the driving shaft rotates, the other winding wheel has no direct driving relation with the rotation of the driving shaft, the rotation of the passively rotating winding wheel is acted by an object (such as a rope, a curtain or a louver) wound on the winding wheel, and meanwhile, the rotation of the passively rotating winding wheel is acted by the acting force of a first braking device or a second braking device;

as shown in fig. 3, the first connecting spring 72 is disposed between the first sliding sleeve 71 and the second sliding sleeve 73, so that the acting force between the first sliding sleeve 71 and the second sliding sleeve 73 is maintained, and when the forward rotation and the reverse rotation of the driving shaft are switched, the first sliding sleeve 71 and the second sliding sleeve 73 can always perform the switching movement continuously or uninterruptedly, and no switching blind area occurs;

when the first boss 710 moves along the first sliding surface 36, the second sliding sleeve 73 is pressed against the second sliding surface 56 by the elastic force of the first connecting spring 72, but cannot move along the second sliding surface 56, so that the second boss 730 cannot be separated from the moving track, and if the rotating direction is switched, the second boss 730 can move along the second sliding surface 56 at any time, and the second rolling wheel is driven to rotate;

similarly, when the second boss 730 moves along the second sliding surface 56, the first sliding sleeve 71 is tightly supported on the first sliding surface 36 by the elastic force of the first connecting spring 72, but cannot move along the first sliding surface 36, so that the first boss 710 cannot be separated from the moving track, and if the rotating direction is switched, the first boss 710 can move along the first sliding surface 36 at any time, and the first rolling wheel is driven to rotate at once.

The invention realizes the separation of active rotation and passive rotation and the rapid conversion between the active rotation and the passive rotation through the exquisite rotation, translation and spiral motion and dynamic clamping (for example, the second boss 730 clamps the second clamping table 560 through moving), and also realizes the control and restriction of the passive rotation.

Further, as shown in fig. 1, 3, and 10, the first brake device includes: the first connecting sleeve 32 surrounds the first arc section 31, a first opening 33 is formed in the end portion of the first connecting sleeve 32, the first arc section 31 is sleeved on the outer edge of the first reel 3, a first pre-tightening bolt 37 for controlling tightness of the first opening is arranged on the first opening 33, and a first pre-tightening spring 35 is arranged on the first pre-tightening bolt;

as shown in fig. 1, 3, and 10, the second brake device includes: the end part of the second connecting sleeve is provided with a second opening 53, the second arc section 51 is sleeved on the outer edge of the second rolling wheel 5, the second opening 53 is provided with a second pre-tightening bolt 57 for controlling the tightness of the second opening, and the second pre-tightening bolt is provided with a second pre-tightening spring 55;

as shown in fig. 1, 3 and 10, the first circular arc segment 31 and the first opening 33 are located in a first plane, the second circular arc segment 51 and the second opening 53 are located in a second plane, and the first plane is parallel to the second plane or the first connecting sleeve 32 is parallel to the second connecting sleeve 52;

the first arc section 31 and the second arc section 51 are, for example, brake pads, the first connecting sleeve 32 and the second connecting sleeve 52 are, for example, clamping devices, and rotation resistance can be applied more uniformly by friction between the first arc section 31 and the second arc section 51, so that the first reel and the second reel are protected, and a proper preset pretightening force can be applied to the first reel and the second reel by adjusting the elasticity of the first pretightening spring 35 and the second pretightening spring 55.

Further, the transmission locking device for curling further comprises: and a switching device for switching the tightness of the first brake device and the second brake device, wherein the switching device is connected with the driving shaft, and the switching device is connected with the first brake device and the second brake device. Through the switching device, pretightening force can be exerted only to passive pivoted reel, and pretightening force is not exerted to initiative pivoted reel, switches through setting up first brake equipment with the switching device of second brake equipment elasticity, and the pretightening relation of dynamic adjustment to initiative pivoted reel and passive pivoted reel to can make initiative pivoted reel rotate smoothly, reduce the resistance, also increased first brake equipment with second brake equipment's life. In the embodiment of fig. 1 to 3, the drive locking device for crimping is without a switching device, and fig. 4, 5, 9 and 10 show the structure of the switching device or the drive locking device for crimping with a switching device.

Further, as shown in fig. 4, 5, 9 and 10, the switching device includes:

a rotating disc 81 mounted on the driving shaft 2, the first reel 3 is located between the second reel 5 and the rotating disc 81, the edge of the rotating disc 81 is provided with a plurality of convex teeth 810, the number of the convex teeth 810 can be one or more, and the rhythm of the plurality of convex teeth is adjusted to be accelerated;

a shift lever 83 disposed in the first opening and the second opening, the shift lever being perpendicular to the first plane and the second plane or the shift lever 83 being perpendicular to the first connecting sleeve 32 and the second connecting sleeve 52;

the first shifting block 85 is arranged on the shifting lever, the first shifting block 85 is positioned in the first opening, the width of the first shifting block is smaller than the length of the first shifting block, the maximum value of the first opening is the length of the first shifting block, and the minimum value of the first opening is the width of the first shifting block;

the second shifting block 87 is arranged on the shifting lever, the first shifting block is positioned in the second opening, the width of the second shifting block is smaller than the length of the second shifting block, the maximum value of the second opening is the length of the second shifting block, and the minimum value of the second opening is the width of the second shifting block;

as shown in fig. 10, the first block 85 and the second block 87 may have the same shape and size, the length direction of the first block is perpendicular to the length direction of the second block, and the width direction of the first block is perpendicular to the width direction of the second block; that is, if the distance of the first opening is the length of the first shifting block 85, the distance of the second opening is the width of the second shifting block, so that one of the first circular arc section and the second circular arc section is always in a loose state, and the other is in a pre-tightening state;

for example, when the first arc segment is in a relaxed state, the pretightening force applied to the first reel by the first arc segment is zero or smaller, and the pretightening force with a set value applied to the second reel by the second arc segment is smaller; when the second arc section is in a relaxed state, the pretightening force applied to the second reel by the second arc section is zero or smaller, and the pretightening force with a set value is applied to the first reel by the first arc section;

as shown in fig. 10, a fork base 89 is disposed on the shift lever 83, and the first shift block 85 is located between the fork base 89 and the second shift block 87;

a first shifting tooth 891 and a second shifting tooth 893 respectively hinged on the shifting fork base 89 through a hinge shaft 895, as shown in fig. 9, the first shifting tooth 891 and the second shifting tooth 893 can rotate relative to the shifting fork base 89, the first shifting tooth 891 and the second shifting tooth 893 intersect at an included angle greater than 0 degree, as shown in fig. 4, a third connecting spring 892 is arranged between the first shifting tooth and the second shifting tooth (the third connecting spring 892 is removed in other figures for showing other parts); as shown in fig. 9, the shifting fork base is provided with two swinging grooves 890 for accommodating the swinging of the first shifting tooth and the second shifting tooth, for example, one side of one swinging groove is provided with a third clamping platform 8901 for limiting the bottom of the first shifting tooth, the other side of the other swinging groove is provided with a fourth clamping platform 8903 for limiting the bottom of the second shifting tooth, and the third clamping platform 8901 and the fourth clamping platform 8903 are arranged in a back-to-back manner;

as shown in fig. 5, the first and

second pick

891, 893 are located in the same plane as the dial 81, and the tops of the first and

second pick

891, 893 are located within the rotational region of the spur 810; as shown in fig. 9, the top of the first pick has: the first shifting portion 8911 is located on the first side of the first shifting tooth, and the first sliding portion 8913 is located on the second side of the first shifting tooth, after the convex tooth 810 meets the first shifting portion 8911, the first shifting portion 8911 can receive the acting force of the convex tooth 810, and the bottom of the first shifting tooth can move to the third clamping platform 8901, so that the shifting fork base 89 is driven to rotate, the shifting lever 83 is driven to rotate, and the effect of adjusting and switching the tightness of the first brake device and the second brake device is achieved;

the first toggle part 8911 is, for example, a force-bearing surface extending from the hinge 895 along the radial direction of the plane of the turntable; the first sliding portion 8913 is, for example, a tangent plane or a transition plane intersecting with a plane where the first toggle portion 8911 is located, and when the protruding tooth 810 meets the first sliding portion 8913, the first sliding portion 8913 will move the bottom of the first toggle tooth 891 away from the third ledge 8901, but will not move the bottom of the first toggle tooth 891 to the third ledge 8901, so that the fork base 89 will not rotate when the protruding tooth 810 meets the first sliding portion 8913.

The top of the second pick 893 has: a second toggle portion 8931 located on a first side of the second toggle tooth and a second slide portion 8933 located on a second side of the second toggle tooth; first stirring portion and second stirring portion are in proper order between first sliding part and the second sliding part, the structure of tooth is dialled to the second is similar with the structure of first tooth 891 of dialling, effect and principle and similar. The first shifting tooth 891 and the second shifting tooth 893 are, for example, rectangular rectangles with unfilled corners, but the arrangement directions of the first shifting tooth and the second shifting tooth are opposite; first stirring portion 8911 and first sliding portion 8913 are first two sides of dialling tooth 891 respectively for the top of first dialling tooth 891 is the rectangle of unfilled corner, and the top of second dialling tooth 893 is the rectangle of unfilled corner also, but the direction of unfilled corner is opposite for first dialling tooth 891 and second dialling tooth 893, makes in the different turns to of drive shaft, and shift fork base 89 is dialled tooth 891 or second respectively and is dialled the tooth 893 and drive the rotation, and, along with the different turns to of drive shaft, the turning to of shift fork base 89 or driving lever is also along with changing.

As shown in fig. 5, the first toggle part drives the shift lever to rotate forward under the circumferential pressure of the forward rotation of the convex teeth, then the first toggle tooth 891 drives the shift fork base 89 or the shift lever to rotate to the right position, and thereafter, each convex tooth on the turntable continuously rotates to the second sliding part 8933, each convex tooth 810 continuously applies force to the second sliding part 8933, but the second sliding part 8933 does not make the bottom of the second toggle tooth 893 block the fourth clamping platform 8903, so that the second toggle tooth 893 can only swing in the swinging groove 890 at this time without continuously making the shift fork base 89 or the shift lever rotate or change the position again, and similarly, the second toggle part drives the shift lever to rotate reversely under the circumferential pressure of the reverse rotation of the convex teeth; the first sliding part swings reversely in the swing groove under the circumferential pressure of the reverse rotation of the convex teeth.

Therefore, as long as the first shifting tooth 891 rotates in place, no matter how the driving shaft drives the turntable to rotate, the shift fork base 89 or the shift lever can not rotate or change position, so that under the dynamic state of the driving shaft, the turntable, the convex teeth, the shift fork base 89 or the shift lever, one of the first circular arc section or the second circular arc section is in a holding or friction state, and the other one is in a loose or friction-free state.

Third connecting spring 892 arranged between the first shifting tooth and the second shifting tooth always enables the first shifting tooth 891 or the second shifting tooth 893 not to be separated in the process of forward and reverse switching of the driving shaft, and enables the first shifting tooth and the second shifting tooth to swing and clamp the clamping table to be matched with each other, so that when the driving shaft rotates forward and reverse, the first arc section or the second arc section can be switched flexibly, rapidly and without disjointing.

Further, as shown in fig. 3, the first winding wheel 3 is sleeved on the driving shaft 2 through a bearing 41, the second winding wheel 5 is sleeved on the driving shaft 2 through a bearing 43, the first winding wheel 3 is supported on the bracket through a bearing 42, and the second winding wheel 5 is supported on the bracket through a bearing 44, so that the rotation and the support of each winding wheel are facilitated.

The figure of first boss and second boss is two, two first boss about the drive shaft is the axisymmetric setting, two the second boss about the drive shaft is the axisymmetric setting to each sliding sleeve can target in place fast, drives corresponding initiative pivoted winding wheel fast, first circular arc section and second circular arc section are the brake block, so that the braking is even, the figure of dogtooth is a plurality ofly, for example is 5 to 7.

Further, as shown in fig. 3, 6 and 8, the first reel 3 includes: the winding device comprises a first disk 38 and a second disk 30, wherein the first disk 38 is arranged side by side at the lateral side of the second disk 30, the inner edge of the first circular arc section 31 wraps the outer edge of the first disk 38, and a mounting groove 300 for accommodating a wound object (such as a winding rope) is arranged on the second disk 30; this kind of structure is convenient for first reel 3 can realize the function that drives the object of being convoluteed (for example for the serving rope), can realize again receiving the effect of the control or the braking of first circular arc section 31.

As shown in fig. 3, 6 and 8, the second reel 5 includes: the third circular disc 58 is arranged in parallel on the side of the fourth connecting disc 50, the inner edge of the second circular arc section 51 wraps the outer edge of the third circular disc 58, and the fourth connecting disc 50 can be a circular disc or other shapes. As shown in fig. 4, the fourth connecting disc 50 is a circular disc for facilitating the curling of smooth objects, such as facilitating the rolling of cloth, curling of curtain, etc., as shown in fig. 1 and fig. 6, the outer edge of the fourth connecting disc 50 is provided with a positioning table 520, or the outer edge of the fourth connecting disc 50 is polygonal or regular polygon for facilitating the curling of angular objects such as louver. The structure of the second winding wheel 5 is convenient for realizing the function of driving the wound object (such as a winding rope) and the effect of being controlled or braked by the second arc segment 51.

As shown in fig. 12, the present invention further provides a canopy curling device for curling or stretching a canopy 900, the canopy 900 being horizontally disposed in an ideal state during the unfolding process, the canopy curling device comprising the aforementioned transmission locking device 100 for curling, and a motor 501 connected to the driving shaft, wherein the motor 501 is located at a first end (upper left end in fig. 12) of the canopy 900, and the first winding wheel and the second winding wheel are located at a second end (lower left end in fig. 12) of the canopy;

the first rolling wheel is a rolling wheel, and is used for curling or winding the serving 400 in the mounting groove 300 of the first rolling wheel, the second rolling wheel 5 is a cloth rolling wheel, and the second rolling wheel 5 is used for curling the backdrop (or curtain) 900, the first side (the left side in fig. 12) of the backdrop is connected on the cloth rolling wheel, the driving shaft is horizontally arranged, the motor 501 and the transmission locking device 100 used for curling are arranged on the first side (the left side in fig. 12) of the backdrop (or curtain) 900, the second side (the right side in fig. 12) of the backdrop is provided with the fixed pulley 611 used for supporting and connecting the serving 400, and the fixed pulley 611 is supported on the wall body 610. The rolling rope 400 and the canopy (or curtain) 900 are both located in the horizontal plane, and the rolling rope 400 is connected with the canopy (or curtain) 900 through two fixed pulleys 611 at the upper end and the lower end of the wall 610.

As shown in fig. 12, when the motor 501 rotates the rolling canopy (or curtain) 900 in the forward direction, the motor 501 drives the second rolling wheel 5 to rotate actively, so as to tighten or roll the canopy (or curtain) 900, and the canopy (or curtain) 900 moves to the left, and if the driving locking device 100 for rolling of the present invention is not used, the canopy (or curtain) 900 sags before being rolled or during the rolling process.

When the transmission locking device 100 for curling is adopted, the first arc section 31 acts on the first winding wheel 3 to prevent the first winding wheel 3 or the rope winding wheel from randomly and passively rotating, the first winding wheel 3 or the rope winding wheel can pull the rope winding 400 without allowing the top curtain 900 to droop, only after the first winding wheel 3 or the rope winding wheel normally and actively rotates or keeps the rotation in the straightening state along with the top curtain 900, when the passively rotating moment applied to the first winding wheel 3 or the rope winding wheel by the rope winding 400 is larger than the drooping moment of the top curtain 900 under the influence of gravity, the first winding wheel 3 or the rope winding wheel passively rotates, so that the top curtain 900 is curled in the continuous straightening state, in the process, the first winding wheel 3 or the rope winding wheel always keeps a pre-tightening state, the pre-tightening force is larger than or equal to the drooping force of the top curtain 900 under the influence of gravity, and the pre-tightening force is adjusted by the first pre-tightening spring;

as shown in fig. 12, when the motor 501 rotates reversely, the motor 501 drives the first winding wheel 3 or the rope winding wheel to rotate actively, the rope winding 400 is tightened to pull the canopy 900 open, and when the canopy 900 moves rightwards, the second arc segment 51 applies friction to the second winding wheel 5 to prevent the second winding wheel 5 from rotating passively at will, the second winding wheel 5 will keep static or tension on the canopy 900 to pull the canopy 900 without sagging of the canopy 900, only after the canopy 900 rotates actively or keeps the stretched state, the moment of passive rotation applied to the second winding wheel 5 by the canopy 900 is greater than the moment of sagging of the canopy 900 under the influence of gravity, the second winding wheel 5 rotates passively, so as to pull the canopy 900 open in the continuous stretched state, during this process, the second winding wheel 5 always keeps a pre-tightening state, the pre-tightening force is greater than or equal to the force of sagging of the canopy 900 under the influence of gravity, the pre-tightening force is adjusted by a second pre-tightening spring.

The invention completely replaces a tensioning motor with a transmission locking device for curling, only needs one motor to be connected with a driving shaft, and can complete the task which can be completed by at least two motors in the prior art, thereby at least reducing the cost, reducing the installation process and the occupied space of the motors, reducing the power consumption, saving the electric charge and the maintenance of the motors, and increasing the safety because the motors are not used.

As shown in fig. 11 and 13, the present invention also provides an outdoor louver curling device for curling outdoor louvers 500, which are different from indoor louvers, and which are subjected to a large wind and have a large gravity, so that it is more difficult to curl outdoor louvers than indoor louvers, the outdoor louver curling device comprising: the transmission locking device 100 for rolling and the motor 501 connected with the driving shaft are arranged in the foregoing, the first roller 3 is a roller pipe, the second roller 5 is a roller pipe for rolling outdoor blinds, a positioning table 520 is arranged on the second roller 5, the rolling device further comprises outdoor blinds 500 rolled on the roller pipe and a rolling rope 400 rolled on the roller pipe, and the rolling rope 400 is connected with each outdoor blind 500;

the motor and the transmission locking device for rolling are arranged on the first side (the upper side in fig. 13) of the outdoor louver, a fixed pulley 611 for supporting and connecting the rolling rope is arranged on the second side (the lower side in fig. 13) of the outdoor louver, the top end of the outdoor louver is connected to the rolling pipe wheel, and the rolling rope 400 is connected with each outdoor louver through the fixed pulley 611.

The main differences between the outdoor blind curling device of fig. 11 and 13 and the awning curling device of fig. 12 are: the outdoor louver 500 in fig. 12 is vertically disposed, the awning screen 900 in fig. 11 is horizontally disposed, which is equivalent to the awning winder being turned from the horizontal direction to the vertical direction, thereby forming the outdoor louver winder, and the outdoor louver 500 of stainless steel or aluminum alloy, which is heavier than the indoor louver, is wound on the second reel 5, instead of the awning screen 900.

The traditional outdoor louver is characterized in that the angle of each louver of the whole louver is adjusted by the contact between the bottommost blade and the ground, the traditional adjusting mode is unstable and unreliable, the angle adjusting range is limited, and the influence of gravity is large. When the angle of the outdoor louver needs to be adjusted after the outdoor louver is unfolded, if the traditional mode is used, the angle adjustment of each outdoor louver can be realized only by the reverse rotation and the point movement of the motor after the bottommost outdoor louver is contacted with the ground, if the bottommost outdoor louver is not contacted with the ground, or the outdoor louver is not vertically arranged, the angle adjustment cannot be carried out, and even if the angle adjustment can be carried out, the overturning angle of each louver is not continuous in the overturning process because of no pull-up control force, the louver can only be adjusted to a certain angle or a plurality of angles, and the stepless adjustment cannot be realized.

The angle adjustment of the outdoor blind rolling device of the invention is completed by braking the passive rolling wheel, when adjusting the angle, the second rolling wheel 5 connected with the outdoor blind is passively rotated, the first rolling wheel 3 connected with the rolling rope 400 is actively rotated, thus, after the rolling rope 400 moves, each outdoor blind 500 is driven to rotate, meanwhile, the second rolling wheel 5 is the passively rotated rolling wheel, as mentioned above, the passively rotated rolling wheel is controlled by the action of the pre-tightening force, just like the tensioning of the backdrop, in the action process of the rolling rope 400, the second rolling wheel 5 can not rotate randomly, thus the angle adjustment of each blind can not be influenced, in the adjustment process, the last blind of the blind does not need to land, even if the last blind hangs in the air, the angle adjustment can be completed, thus, the wide angle adjustment can be completed without completely pulling the outdoor blind, for example, each outdoor louver can form a certain included angle relative to the ground, so that people on two sides of the outdoor louver can observe conveniently and can ventilate conveniently.

The outdoor louver rolling device of the present invention is not limited to the vertical arrangement, and for example, it may be arranged horizontally as in the canopy rolling device in fig. 12, and the outdoor louver may be unfolded in a horizontal plane, and may be adjusted in angle for louvers arranged in various directions. For example, the driving shaft is arranged perpendicular to the ground, and the plane where the outdoor louver is located is perpendicular to the ground, wherein the plane where the outdoor louver is located is a straight plane, and the plane where the outdoor louver is located is a curved plane. No matter where the plane of the outdoor louver is located, the outdoor louver curling device has a pre-tightening function, and can achieve the efficiency which cannot be achieved by the outdoor louver without the pre-tightening function. Further, the driving shaft is horizontally arranged, and the unfolding plane of the outdoor louver is a horizontal plane. Further, the driving shaft is horizontally arranged, and the unfolding plane of the outdoor louver is an inclined plane. The arrangement not only overcomes the limitation of gravity, but also has the function of pre-tightening.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. In order that the components of the present invention may be combined without conflict, it is intended that all equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. A backdrop curling device for curling a backdrop, the backdrop curling device including a drive lock for curling, the drive lock for curling comprising:

a support;

a drive shaft extending through the bracket;

2. The awning curling device of claim 1,

the first brake device includes: the first pre-tightening bolt is used for controlling the tightness of the first opening, and a first pre-tightening spring is arranged on the first pre-tightening bolt;

3. The awning curling device of claim 2, wherein said drive locking means for curling further comprises: and a switching device for switching the tightness of the first brake device and the second brake device, wherein the switching device is connected with the driving shaft, and the switching device is connected with the first brake device and the second brake device.

4. The awning curling device of claim 3 wherein said first circular arc segment and said first opening lie in a first plane and said second circular arc segment and said second opening lie in a second plane, said first plane being parallel to said second plane;

the switching device includes:

5. The awning curling device as claimed in claim 4, wherein the first winding wheel and the second winding wheel are sleeved on the driving shaft through bearings, the number of the first bosses and the number of the second bosses are two, the two first bosses are arranged in axial symmetry with respect to the driving shaft, the two second bosses are arranged in axial symmetry with respect to the driving shaft, the first arc section and the second arc section are brake pads, and the number of the convex teeth is multiple.

6. The awning screen curling device of claim 1, wherein said first roller comprises: the winding device comprises a first disc (38) and a second disc (30), wherein the first disc is arranged in the lateral direction of the second disc side by side, the inner edge of the first arc section wraps the outer edge of the first disc, and the second disc is provided with a mounting groove for accommodating a wound object;

7. The canopy curling device of claim 1, wherein the canopy curling device further comprises: the cloth winding device comprises a backdrop curled on the cloth rolling wheel and a rope winding curled on the rope rolling wheel, wherein the rope winding is connected with the second side of the backdrop through the fixed pulley.