CN219299177U

CN219299177U - Roller shutter adjusting mechanism and roller shutter device

Info

Publication number: CN219299177U
Application number: CN202223363335.9U
Authority: CN
Inventors: 黄宝悦; 朱分江
Original assignee: Guangdong Chuangming Sun Shade Technology Co ltd
Current assignee: Guangdong Chuangming Sun Shade Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-07-04
Anticipated expiration: 2032-12-14

Abstract

The utility model belongs to the technical field of sun shading, and particularly relates to a roller shutter adjusting mechanism and a roller shutter device. The roller shutter adjusting mechanism includes: a roller shutter tube; the first rolling device is fixedly connected with one end of the roller shutter pipe, the first rolling device can rotate around the axis together with the roller shutter pipe, and the second rolling device is positioned at the other end of the roller shutter pipe and can rotate freely compared with the roller shutter pipe; the torsion mechanism enables the roller shutter tube and the second rolling device to keep a rotation trend along the opposite direction; one end of the ratchet mechanism is connected with the torsion mechanism, and the torsion mechanism is preloaded through unidirectional rotation of the ratchet mechanism; the driving mechanism is arranged in the roller shutter pipe and drives the first roller shutter, the second roller shutter and the roller shutter pipe to rotate around the axis together. The utility model can conveniently and safely pretwist the torsion mechanism, and under the limit action of the ratchet mechanism, the hand can be loosened halfway when the ratchet mechanism is adjusted by the hand, and the torsion mechanism can prevent the hand from being carelessly slipped, and the torsion of the torsion mechanism can hurt people.

Description

Roller shutter adjusting mechanism and roller shutter device

Technical Field

The utility model belongs to the technical field of sun shading, and particularly relates to a roller shutter adjusting mechanism and a roller shutter device.

Background

CN102767328A discloses a differential type canopy curtain, rolling curtain of torsion coiling, it includes the outer tube, wind at the outer tube and from the curtain cloth of outer tube expansion and the traction lever of being connected with the lower limb of curtain cloth, the coiler is installed respectively at the both ends of outer tube, guide device is still installed to coiler below, outer tube internally mounted has the inner tube that can freely rotate in the outer tube, the internally mounted of inner tube has the tubular motor that can order about inner tube pivoted, at least one torsion spring that makes between outer tube and the curtain cloth is installed to the outer wall of inner tube, the torsion spring is indirect or direct with the inner wall connection of outer tube. The novel curtain cloth winding and unwinding device is provided with the torsion spring, and the torsion spring is arranged after being pre-tensioned, so that the torsion spring is in a working state and outputs a certain torque when winding or unwinding, the outer tube and the curtain cloth are tensioned, and the curtain cloth is convenient to wind or unwind smoothly.

Specifically, referring to fig. 1 of the present application, two ends of a torsion spring 10b are respectively mounted on a first spring seat 9b on an outer wall of an inner tube 5b and a second spring seat 11b on an inner wall of an outer tube 15b, and a retractor 2b on the right side is connected with the inner tube 5 b. In order to put the torsion spring 10b in an operating state and output a certain torque, it is generally necessary to pretwist the torsion spring 10b for a certain number of turns to reach the operating state. When the torsion spring is pre-twisted, the right retractor 2b is rotated clockwise (taking clockwise as an example), the retractor 2b sequentially drives the inner tube 5b and the first spring seat 9b, so that the torsion spring 10b is pre-twisted clockwise for a certain number of turns, after the required torque is reached, the right end of the laid steel wire rope 17b and the right retractor 2b are connected, and the steel wire rope 17b can avoid that the torsion spring 10b drives the first spring seat 9b, the inner tube 5b and the retractor 2b to rotate anticlockwise under the action of the torque. But by analysis of the prior art: when the pre-torsion is performed, the torsion spring 10b always has a counterclockwise torsion force, so that the pre-tension is inconvenient and unsafe.

Disclosure of Invention

To the not enough of prior art, driven pawl cover ratchet one end is connected with torsion mechanism, and driven pawl cover torsion mechanism makes torsion mechanism twist reverse pretension according to the pretension direction through driven pawl cover ratchet rotation, rotates the direction of pretension direction opposite to driven pawl cover torsion mechanism simultaneously and carries out spacingly, utilizes ratchet unidirectional rotation's nature promptly, can realize conveniently and safely twisting in advance torsion mechanism, under ratchet limiting effect, loosens the hand and has the prevention careless hand slip in the middle of can hand regulation, torsion mechanism's torsion produces the injury to the people.

The utility model provides a roller shutter adjusting mechanism, which comprises:

a roller shutter tube;

the rolling device comprises a first rolling device and a second rolling device, the first rolling device is fixedly connected with one end of the rolling curtain pipe, the first rolling device can rotate around an axle center together with the rolling curtain pipe, and the second rolling device is positioned at the other end of the rolling curtain pipe and can rotate freely compared with the rolling curtain pipe;

a torsion mechanism for maintaining the rolling trend of the rolling curtain pipe and the second rolling device along the opposite direction;

one end of the ratchet mechanism is connected with the torsion mechanism, and the torsion mechanism is preloaded through unidirectional rotation of the ratchet mechanism;

the driving mechanism is arranged in the roller shutter pipe and drives the first roller shutter, the second roller shutter and the roller shutter pipe to rotate around the axis together.

Preferably, the torsion mechanism comprises a tubular torsion spring, a first spring seat arranged at one end of the torsion spring, and a second spring seat arranged at the other end of the torsion spring, wherein the axle center of the torsion spring is arranged along the axial direction of the roller shutter pipe, the first spring seat is embedded in the roller shutter pipe, and the second spring seat is fixedly connected with the second retractor; the torsion spring enables the rolling curtain pipe and the second rolling device to keep a rotation trend along the opposite direction, and when the rolling curtain pipe rotates, the torsion spring is driven to rotate and the second rolling device is driven to rotate together.

Preferably, the outer peripheral wall of the first spring seat is provided with a limit sliding block, the inner wall of the roller shutter tube is provided with a plurality of limit slots, the limit slots extend along the axial direction of the inner wall of the roller shutter tube, the limit slots are in sliding connection with the limit sliding block, and the limit sliding block can move along the axial direction of the limit slots.

Preferably, the torsion mechanism further comprises a guide shaft rod axially arranged along the torsion spring, the guide shaft rod is embedded in the torsion spring shaft, one end of the guide shaft rod penetrates through the middle of the first spring seat, and the guide shaft rod and the first spring seat can rotate relatively.

Preferably, the roller shutter adjusting mechanism further comprises a first mounting seat and a second mounting seat, wherein the first mounting seat is positioned at one end of the first roller shutter far away from the roller shutter pipe, and one end of the driving mechanism extends out of the roller shutter pipe and is mounted on the first mounting seat; the second mounting seat is positioned at one end of the second retractor, which is far away from the roller shutter pipe, and the second mounting seat is rotationally connected with the second retractor.

Preferably, one end of the ratchet mechanism is connected with the second retractor, the torsion mechanism and the second retractor are rotated in one direction through the ratchet mechanism, and the torsion mechanism is preloaded through rotation of the second retractor.

Preferably, the ratchet mechanism comprises a driving ratchet wheel and a driven pawl sleeve matched with the driving ratchet wheel, the driving ratchet wheel is embedded in the driven pawl sleeve and drives the driven pawl sleeve to rotate unidirectionally, the driving ratchet wheel is connected with the second retractor through a connecting support shaft, and the second retractor drives the driving ratchet wheel to rotate when rotating.

Preferably, the ratchet mechanism further comprises a ratchet pressure spring, wherein the ratchet pressure spring is positioned at one end of the driving ratchet, which is far away from the driven pawl sleeve, and is abutted with the driving ratchet.

Another aspect of the present utility model provides a roller shutter device including:

the roller shutter adjusting mechanism;

the roller shutter body is provided with a roller shutter adjusting mechanism;

the sliding rail comprises a first sliding rail and a second sliding rail which are arranged at intervals, the first end of the first sliding rail and the first end of the second sliding rail are connected with one end, close to the roller shutter adjusting mechanism, of the roller shutter body, and the second end of the first sliding rail and the second end of the second sliding rail extend from the connecting position to the direction away from the roller shutter adjusting mechanism;

the mop rod, the first end and the second end are slidably connected in the first slide rail and the second slide rail;

the reversing wheels comprise at least two first reversing wheels and at least two second reversing wheels, the first reversing wheels are respectively arranged in the first end of the mop rod and the second end of the first sliding rail, and the second reversing wheels are respectively arranged in the second end of the mop rod and the second end of the second sliding rail;

the first end of the curtain cloth is connected with the curtain rolling pipe, the curtain rolling pipe rotates to drive the curtain cloth to be wound on the curtain rolling pipe or to be unwound from the curtain rolling pipe, and the second end of the curtain cloth is connected with the mop rod;

the two ends of the annular synchronous belt are respectively connected with the first retractor and the second retractor, and the middle part of the annular synchronous belt is sequentially and slidably connected with a first reversing wheel in the first sliding rail, a first reversing wheel in the first end of the mop rod, a second reversing wheel in the second end of the mop rod and a second reversing wheel in the second sliding rail;

the driving mechanism drives the first retractor and the second retractor to rotate, and the synchronous belt is wound on the first retractor and the second retractor or is unwound from the first retractor and the second retractor, so that the mop rod is close to or far away from the roller shutter adjusting mechanism.

Preferably, the roller shutter device further comprises a housing, the housing is provided with a containing cavity for installing the roller shutter adjusting mechanism, the housing is provided with a cloth guiding hole communicated with the containing cavity along the axial direction, the left end and the right end of the housing are respectively provided with a housing opening communicated with the containing cavity, the roller shutter adjusting mechanism further comprises a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are respectively mounted on the housing openings.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a prior art roller blind;

FIG. 2 is a schematic structural view of a roller shutter adjustment mechanism;

FIG. 3 is a cross-sectional view of a roller shade adjustment mechanism;

FIG. 4 is an enlarged view of part of A in FIG. 3;

FIG. 5 is an enlarged view of part of B in FIG. 3;

FIG. 6 is an exploded view of the second retractor, second mounting sleeve, ratchet mechanism and second spring seat in cooperation;

FIG. 7 is a schematic view of a ratchet mechanism;

FIG. 8 is a schematic view of a first spring seat and roller tube mated configuration;

FIG. 9 is a schematic view of a roller shade device;

fig. 10 is a schematic structural diagram of the retractor, synchronous belt and reversing wheel in cooperation.

The attached drawings are identified: the roller shutter adjusting mechanism 100, the first roller shutter 101, the second roller shutter 102, the driving mechanism 103, the driving connecting piece 104, the torsion mechanism 105, the torsion spring 106, the first spring seat 107, the second spring seat 108, the guide shaft 109, the ratchet mechanism 110, the driving ratchet 111, the driven pawl sleeve 112, the ratchet pressure spring 113, the first mounting seat 114, the second mounting seat 115, the mounting seat bearing 116, the bearing 117, the bearing 118, the limit slider 119, the limit slot 120, the connecting support shaft 121, the first mounting shaft sleeve 122, the second mounting shaft sleeve 123, the fixing screw 124, the limit pawl 125, the square shaft hole 126, and the roller shutter tube 127;

the novel curtain comprises a rolling curtain body 1, a housing 2, curtain cloth 3, a synchronous belt 4, a first reversing wheel 5, a first reversing wheel 6, a second reversing wheel 7, a second reversing wheel 8, a third reversing wheel 9, a fourth reversing wheel 10, a first sliding rail 11, a second sliding rail 12 and a mop rod 13.

Detailed Description

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 2-8, the present utility model provides a roller shutter adjusting mechanism 100, which includes: a roller shutter tube 127; the rolling device comprises a first rolling device 101 and a second rolling device 102, wherein the first rolling device 101 is fixedly connected with one end of a rolling curtain tube 127, the first rolling device 101 can rotate around an axle center together with the rolling curtain tube 127, and the second rolling device 102 is positioned at the other end of the rolling curtain tube 127 and can rotate freely compared with the rolling curtain tube 127; a torsion mechanism 105 for maintaining the rolling shutter tube 127 and the second retractor 102 in a rotation tendency in opposite directions; the driving mechanism 103 is arranged in the roller shutter tube 127, and the driving mechanism 103 drives the first roller shutter 101, the second roller shutter 102 and the roller shutter tube 127 to rotate together around the axis; the ratchet mechanism 110, ratchet mechanism 110 one end is connected with torsion mechanism 105, and torsion mechanism 105 makes torsion mechanism 105 can twist reverse pretension according to the pretension direction through ratchet mechanism 110 rotation, and it is spacing to torsion mechanism 105 to rotate along the opposite direction of pretension direction simultaneously, promptly utilizes ratchet mechanism 110 unidirectional rotation's nature, can realize conveniently and safely pretwist torsion mechanism 105, under ratchet mechanism 110 spacing effect, loosens the hand and has the prevention careless hand slip midway when can adjusting with the hand, and the torsion of torsion mechanism 105 produces the injury to the people.

Specifically, referring to fig. 5-7, the ratchet mechanism 110 includes a driving ratchet 111 and a driven pawl sleeve 112 matched with the driving ratchet 111, the driving ratchet 111 is embedded in the driven pawl sleeve 112 and drives the driven pawl sleeve 112 to rotate unidirectionally, the driving ratchet 111 and the driven pawl sleeve 112 are respectively provided with an adaptive limit pawl 125, so that the driving ratchet 111 rotates unidirectionally under the limit action of the driven pawl sleeve 112, the driving ratchet 111 is connected with the second retractor 102 through a connection support shaft 121, square shaft holes 126 are formed in the middle part of the driving ratchet 111 and the middle part of the second retractor 102, the left end of the connection support shaft 121 is a square shaft matched with the square shaft holes 126, and the second retractor 102 drives the driving ratchet 111 to rotate when rotating. The ratchet mechanism 110 further includes a ratchet pressure spring 113, where the ratchet pressure spring 113 is located at one end of the driving ratchet 111 away from the driven pawl sleeve 112 and abuts against the driving ratchet 111, and the ratchet pressure spring 113 makes the driving ratchet 111 and the driven pawl sleeve 112 fit together. In use, taking the clockwise rotation of the torsion mechanism 105 as an example, when the torsion mechanism 105 needs to be pre-tensioned, the second retractor 102 is rotated clockwise, the second retractor 102 drives the driving ratchet 111 through the connection support shaft 121, the driving ratchet 111 can rotate clockwise, and the driven pawl sleeve 112 can limit the counterclockwise rotation of the driving ratchet 111, so as to prevent the torsion mechanism 105, the connection support shaft 121 and the second retractor 102 from rotating counterclockwise. The ratchet mechanism 110 of the present utility model is not only applicable to the roller shutter adjusting mechanism 100 of the new driving method described below, but those skilled in the art reasonably presumes that the ratchet mechanism 110 of the present utility model is also applicable to the roller shutter adjusting mechanism 100 in CN102767328A, and will not be described here again.

Referring to fig. 2-8, another aspect of the present utility model provides a roller shutter adjusting mechanism 100 with a new driving mode, which includes: a roller shutter tube 127; the driving mechanism 103, which may be a motor, is disposed in the roller shutter tube 127, and the driving mechanism 103 drives the roller shutter tube 127 to rotate around the axis; the rolling device comprises a first rolling device 101 and a second rolling device 102, wherein the first rolling device 101 is fixedly connected with one end of a rolling curtain tube 127, the first rolling device 101 can rotate around an axle center together with the rolling curtain tube 127, and the second rolling device 102 is positioned at the other end of the rolling curtain tube 127 and can rotate freely compared with the rolling curtain tube 127; the torsion mechanism 105, which may be a torsion bar or a tubular torsion spring 106, has one end connected to the roller shutter tube 127 and the other end connected to the second retractor 102, and the torsion mechanism 105 maintains the roller shutter tube 127 and the second retractor 102 in a rotation trend in opposite directions, and when the roller shutter tube 127 rotates, the torsion mechanism 105 is driven to rotate and the second retractor 102 is driven to rotate together. The present utility model eliminates the need for the first inner tube 50b, the inner tube connecting member 6b and the second inner tube 51b to be cooperatively driven as compared with the prior art; the utility model changes the connection mode of the motor, the spring, the roller shutter tube 127 and the two winders and the mode of driving the spring, the roller shutter tube 127 and the two winders by the motor, and the internal transmission part does not need to adapt to the change of the length of the outer tube.

Specifically, referring to fig. 5-8, the torsion mechanism 105 includes a tubular torsion spring 106, a first spring seat 107 disposed at one end of the torsion spring 106, and a second spring seat 108 disposed at the other end of the torsion spring 106, wherein an axial center of the torsion spring 106 is disposed along an axial direction of a roller shutter tube 127, the first spring seat 107 is embedded in the roller shutter tube 127, and the second spring seat 108 is fixedly connected with the second retractor 102; the torsion spring 106 keeps the rolling tube 127 and the second retractor 102 in opposite directions in a rotation trend, and when the rolling tube 127 rotates, the torsion spring 106 is driven to rotate and the second retractor 102 is driven to rotate together. The outer peripheral wall of the first spring seat 107 is provided with a limit slider 119, the inner wall of the roller shutter tube 127 is provided with a plurality of limit slots 120, the limit slots 120 extend along the axial direction of the inner wall of the roller shutter tube 127, the limit slots 120 are in sliding connection with the limit slider 119, the limit slider 119 can move along the axial direction of the limit slots 120, and when the torsion spring 106 is pre-tensioned, the first spring seat 107 receives the torsion force of the torsion spring 106 along the circumferential direction on one hand and receives the leftward elastic force along the axial direction due to the compression of the torsion spring 106, and receives the supporting force along the circumferential direction and the leftward friction force along the axial direction of the limit slots 120 on the inner wall of the roller shutter tube 127 on the other hand; after the torsion spring 106 is pre-tensioned, the torsion force and the supporting force of the torsion spring 106 are in the same direction and opposite in the same direction, namely the friction force and the elastic force are in the same direction, namely the first spring seat 107 can rest on the inner wall of the roller shutter tube 127; when the second retractor 102 receives the timing belt 4 or releases the timing belt 4, the torsion of the torsion spring 106 increases or decreases, after the first spring seat 107 moves rightward or leftward for a certain distance along the axial direction of the limit slot 120, the first spring seat 107 is stationary on the inner wall of the roller shutter tube 127, at this time, the supporting force increases or decreases and is the same as the torsion of the torsion spring 106, and the friction force and the elastic force increase or decrease and are the same again. The torsion mechanism 105 further comprises a guide shaft lever 109 axially arranged along the torsion spring 106, the guide shaft lever 109 is embedded in the torsion spring 106, the torsion spring 106 cannot twist along the radial direction when twisting along the circumferential direction, one end of the guide shaft lever 109 penetrates through the middle of the first spring seat 107, and the guide shaft lever 109 and the first spring seat 107 can rotate relatively. The roller shutter adjusting mechanism 100 further comprises a first mounting seat 114 and a second mounting seat 115, wherein the first mounting seat 114 is positioned at one end of the first roller shutter 101 far away from the roller shutter tube 127, and one end of the driving mechanism 103 extends out of the roller shutter tube 127 and is mounted on the first mounting seat 114; the second mount 115 is located at an end of the second retractor 102 remote from the roller tube 127, and the second mount 115 is rotatably connected to the second retractor 102. The driving mechanism 103 drives the roller shutter tube 127 to rotate on one hand and drives the first retractor 101 to rotate; the driving mechanism 103 drives the roller shutter tube 127 to rotate, and sequentially drives the first spring seat 107, the torsion spring 106, the second spring seat 108, the connection support shaft 121 and the second retractor 102 to rotate. On one hand, when the curtain cloth 3 is rolled or unrolled, the torsion spring 106 is in a working state and outputs a certain torque, so that the outer tube and the curtain cloth 3 are tightly stretched, and the curtain cloth 3 is convenient to roll or unroll to be flat; on the other hand, the first spring seat 107, the guide shaft 109 and the torsion spring 106 do not need to be directly connected to the driving mechanism 103, and these internal transmission members do not need to accommodate the change in the length of the outer tube, and can be made as general-purpose members.

In a preferred embodiment, referring to fig. 3-4, the right end of the driving mechanism 103 is output, and is connected to the driving connection member 104, the driving connection member 104 is connected to the inner wall of the roller shutter tube 127, the driving mechanism 103 drives the roller shutter tube 127 to rotate through the driving connection member 104, the left end of the driving mechanism 103 is mounted on the first mounting seat 114 and penetrates the first mounting shaft sleeve 122, the first mounting shaft sleeve 122 and the left end of the driving mechanism 103 can rotate relatively, and the first mounting shaft sleeve 122 is mounted at the left end pipe orifice of the roller shutter tube 127.

In a preferred embodiment, referring to fig. 5-6, the second mounting seat 115 is provided with a mounting seat bearing 116, the torsion mechanism 105 further includes a connection support shaft 121, the right end of the connection support shaft 121 is rotatably mounted in the mounting seat bearing 116, the left end of the connection support shaft 121 is a square shaft, the connection support shaft penetrates through the second retractor 102, the second bearing 118, the second mounting shaft sleeve 123, the driven pawl sleeve 112, the driving ratchet 111, the ratchet pressure spring 113, the first bearing 117 and the second spring seat 108 sequentially from right to left, wherein the second retractor 102, the driving ratchet 111 and the second spring seat 108 are respectively provided with a square shaft hole 126 matched with the square shaft to enable the connection support shaft 121 to rotate together, the right end of the second mounting shaft sleeve 123 is mounted at the left end of the second retractor 102, the connection support shaft is rotatably connected through the second bearing 118, the second mounting shaft sleeve 123 is sleeved outside the second spring seat 108, the first bearing 117 is rotatably connected between the second mounting shaft sleeve and the second mounting shaft sleeve 123 extends into the right end of the second spring seat 108 to be connected with a hole at the left end of the connection support shaft 121, and the driven shaft sleeve 123 is fixedly mounted in the right shaft sleeve 112.

Another aspect of the present application provides a roller shutter device, and another aspect of the present utility model provides a roller shutter device including: the roller shutter adjusting mechanism 100 described above; a roller shutter body 1, a roller shutter adjusting mechanism 100 being mounted on the roller shutter body 1; the sliding rail comprises a first sliding rail 11 and a second sliding rail 12 which are arranged at intervals, wherein the first end of the first sliding rail 11 and the first end of the second sliding rail 12 are connected with one end, close to the roller shutter adjusting mechanism 100, of the roller shutter body 1, and the second end of the first sliding rail 11 and the second end of the second sliding rail 12 extend from the connecting position to the direction away from the roller shutter adjusting mechanism 100; a mop rod 13, the first and second ends of which are slidably connected within the first and second slide rails 11, 12; the reversing wheels comprise at least two first reversing wheels 5 and at least two second reversing wheels 8, wherein the first reversing wheels generally comprise a first wheel 6 and a second wheel 7 which are respectively arranged in a first end of a mop rod 13 and a second end of a first sliding rail 11, and the second reversing wheels generally comprise a third wheel 9 and a fourth wheel 10 which are respectively arranged in a second end of the mop rod 13 and a second end of a second sliding rail 12; the curtain cloth 3, the first end of which is connected with the curtain rolling tube 127, the curtain rolling tube 127 rotates to drive the curtain cloth 3 to be wound on the curtain rolling tube 127 or to be unwound from the curtain rolling tube 127, and the second end of which is connected with the mop rod 13; the annular synchronous belt 4 can be a steel wire or a belt, two ends of the annular synchronous belt are respectively connected with the first coiler 101 and the second coiler 102, and the middle part of the annular synchronous belt is sequentially and slidably connected with the first wheel 6, the second wheel 7, the third wheel 9 and the fourth wheel 10; the driving mechanism 103 drives the first retractor 101 and the second retractor 102 to rotate, and the synchronous belt 4 is wound on the first retractor 101 and the second retractor 102 or is unwound from the first retractor 101 and the second retractor 102, so that the mop rod 13 is close to or far from the roller shutter adjusting mechanism 100. Still further, the roller shutter device further includes a housing 2, the housing 2 is provided with a housing cavity for mounting the roller shutter adjusting mechanism 100, the housing 2 is provided with a cloth guiding hole communicated with the housing cavity along an axial direction, the left and right end portions of the housing 2 are respectively provided with a housing opening communicated with the housing cavity, the roller shutter adjusting mechanism 100 further includes a first mounting seat 114 and a second mounting seat 115, and the first mounting seat 114 and the second mounting seat 115 are respectively mounted on the housing opening. When in use, after the housing 2 is installed at the target position, the torsion spring 106 in the roller shutter adjusting mechanism 100 is preloaded, the synchronous belt 4 is well distributed and respectively connected with the first roller shutter 101 and the second roller shutter 102, and the roller shutter device can be put into a use state after the installation is completed. The curtain 3 can be wound on the roller tube 127 to be wound up or unwound from the roller tube 127 by driving the roller tube 127, the first retractor 101 and the second retractor 102 to rotate by a motor; meanwhile, the first retractor 101 and the second retractor 102 wind up or unwind a length corresponding to the left and right ends of the synchronous belt 4 respectively, and the torsion of the torsion spring 106 tightens the outer tube and the curtain 3, so that the curtain 3 is wound up or unwound to be flat (the torsion spring 106 keeps the curtain 3 tight in more detail, refer to CN 102767328A).

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. A roller shutter adjustment mechanism, comprising:

a roller shutter tube;

2. The roller shutter adjusting mechanism according to claim 1, wherein the torsion mechanism comprises a tubular torsion spring, a first spring seat arranged at one end of the torsion spring, and a second spring seat arranged at the other end of the torsion spring, wherein the axle center of the torsion spring is arranged along the axial direction of a roller shutter pipe, the first spring seat is embedded in the roller shutter pipe, and the second spring seat is fixedly connected with the second retractor; the torsion spring enables the rolling curtain pipe and the second rolling device to keep a rotation trend along the opposite direction, and when the rolling curtain pipe rotates, the torsion spring is driven to rotate and the second rolling device is driven to rotate together.

3. The roller shutter adjusting mechanism according to claim 2, wherein the outer peripheral wall of the first spring seat is provided with a limit slider, the inner wall of the roller shutter tube is provided with a plurality of limit slots, the limit slots extend along the axial direction of the inner wall of the roller shutter tube, the limit slots are slidably connected with the limit slider, and the limit slider can move along the axial direction of the limit slots.

4. The roller shutter adjusting mechanism of claim 2, wherein the torsion mechanism further comprises a guide shaft rod axially disposed along the torsion spring, the guide shaft rod is embedded in the torsion spring shaft, one end of the guide shaft rod penetrates through the middle of the first spring seat, and the guide shaft rod and the first spring seat are rotatable relative to each other.

5. The roller shade adjustment mechanism of claim 2, further comprising a first mount and a second mount, wherein the first mount is located at an end of the first retractor remote from the roller shade tube, and wherein one end of the drive mechanism extends out of the roller shade tube and is mounted to the first mount; the second mounting seat is positioned at one end of the second retractor, which is far away from the roller shutter pipe, and the second mounting seat is rotationally connected with the second retractor.

6. The roll-up adjustment mechanism of claim 1, wherein one end of the ratchet mechanism is coupled to the second retractor, the torsion mechanism and the second retractor are rotated in one direction by the ratchet mechanism, and the torsion mechanism is preloaded by the rotation of the second retractor.

7. The roller shutter adjusting mechanism according to claim 6, wherein the ratchet mechanism comprises a driving ratchet wheel and a driven pawl sleeve matched with the driving ratchet wheel, the driving ratchet wheel is embedded in the driven pawl sleeve and drives the driven pawl sleeve to rotate unidirectionally, the driving ratchet wheel is connected with the second retractor through a connecting supporting shaft, and the second retractor drives the driving ratchet wheel to rotate when rotating.

8. The roller shade adjustment mechanism of claim 7, wherein the ratchet mechanism further comprises a ratchet pressure spring positioned at an end of the driving ratchet remote from the driven pawl sleeve and in abutment with the driving ratchet.

9. A roller shade device, the roller shade device comprising:

the roller shade adjustment mechanism of claim 1;

the roller shutter body is provided with a roller shutter adjusting mechanism;

10. The roll screen apparatus of claim 9, further comprising a housing having a receiving cavity for mounting the roll screen adjusting mechanism, the housing having a cloth guide hole communicating with the receiving cavity in an axial direction, the housing having left and right end portions provided with housing openings communicating with the receiving cavity, respectively, the roll screen adjusting mechanism further comprising first and second mounting seats mounted on the housing openings, respectively.