CN219299177U - A roller blind adjustment mechanism and a roller blind device - Google Patents

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

A roller blind adjustment mechanism and a roller blind device

technical field

The utility model belongs to the technical field of sunshade, and in particular relates to a roller blind adjustment mechanism and a roller blind device.

Background technique

CN102767328A discloses a torsion coiling differential speed canopy curtain and roller blind, which includes an outer tube, a cord that is wound around the outer tube and unfolded from the outer tube, and a draw bar connected to the lower edge of the cord, and the two ends of the outer tube Retractors are installed respectively, and a guide device is installed under the retractors. An inner tube that can rotate freely in the outer tube is installed inside the outer tube. A tubular motor that can drive the inner tube to rotate is installed inside the inner tube. The outer wall of the inner tube At least one torsion spring is installed to tighten the space between the outer tube and the curtain, and the torsion spring is indirectly or directly connected to the inner wall of the outer tube. By setting the torsion spring and pre-tightening the torsion spring, the torsion spring is in the working state and outputs a certain torque when winding or unwinding, so that the outer tube and the curtain are tightened, which is convenient for winding the curtain. Or unwind flatly.

Specifically, please refer to the accompanying drawing 1 of the application, the two ends of the torsion spring 10b are respectively installed on the first spring seat 9b on the outer wall of the inner tube 5b and the second spring seat 11b on the inner wall of the outer tube 15b, the coil on the right side Receiver 2b is connected to inner tube 5b. In order to make the torsion spring 10b in the working state and output a certain torsional moment, it is usually necessary to pre-twist the torsion spring 10b for a certain number of turns to reach the working state. When pre-twisting, rotate the retractor 2b on the right side clockwise (take clockwise as an example), and the retractor 2b drives the inner tube 5b and the first spring seat 9b in turn, so that the torsion spring 10b pre-twists a certain circle clockwise After reaching the required torque, the right end of the laid wire rope 17b is connected to the retractor 2b on the right side. The wire rope 17b at this time can avoid the torsion spring 10b driving the first spring seat 9b and the inner spring seat 9b due to the torque effect. Tube 5b and retractor 2b rotate counterclockwise. However, through the analysis of the prior art: when pre-twisting, because the torsion spring 10b always has a counterclockwise torsion force, the pre-tightening is inconvenient and not safe enough.

Utility model content

In view of the deficiencies in the prior art, one end of the driven pawl sleeve ratchet mechanism is connected to the torsion mechanism, and the driven pawl sleeve torsion mechanism rotates through the driven pawl sleeve ratchet mechanism so that the torsion mechanism can be twisted and preloaded according to the preload direction, and at the same time The torque mechanism of the driven pawl sleeve rotates in the direction opposite to the preload direction to limit the position, that is, the one-way rotation of the ratchet mechanism can be used to realize the convenient and safe pre-torsion of the torque mechanism. Under the limit action of the ratchet mechanism, it can be used When the hand is adjusted, the hand is released halfway and it can prevent accidental hand slipping, and the torsion of the torsion mechanism will cause harm to people.

The utility model provides a rolling shutter adjustment mechanism, which comprises:

roller shutter tube;

The retractor includes a first retractor and a second retractor, the first retractor is fixedly connected to one end of the roller shade tube, and the first retractor can be wound around the roller shade tube rotate around the axis together, the second retractor is located at the other end of the roller shade tube and can rotate freely compared to the roller shade tube;

a torsion mechanism for keeping the roller blind tube and the second retractor in opposite directions to rotate;

A ratchet mechanism, one end of the ratchet mechanism is connected to a torsion mechanism, and the torsion mechanism is preloaded by unidirectional rotation of the ratchet mechanism;

The driving mechanism is arranged in the roller blind tube, and the driving mechanism drives the first retractor, the second retractor and the roller blind tube to rotate around the axis together.

Preferably, the torsion mechanism includes a tubular torsion spring, a first spring seat provided at one end of the torsion spring, and a second spring seat provided at the other end of the torsion spring. The axial direction of the curtain tube is set, the first spring seat is embedded in the curtain tube, the second spring seat is fixedly connected with the second retractor; the torsion spring makes the curtain tube The second retractor maintains a tendency of rotation in the opposite direction, and when the shutter tube rotates, it drives the torsion spring to rotate, and drives the second retractor to rotate together.

Preferably, a limiting slider is provided on the outer peripheral wall of the first spring seat, and a plurality of limiting slots are provided on the inner wall of the roller blind tube, and the limiting slots extend along the axial direction of the inner wall of the roller blind tube, The limiting slot is slidably connected with the limiting slider, and the limiting slider can move along the axial direction of the limiting slot.

Preferably, the torsion mechanism further includes a guide shaft arranged axially along the torsion spring, the guide shaft is embedded in the torsion spring shaft, and one end of the guide shaft passes through the first spring seat The middle part, and the guide shaft and the first spring seat are relatively rotatable.

Preferably, the roller shade adjustment mechanism further includes a first mounting seat and a second mounting seat, the first mounting seat is located at the end of the first retractor away from the roller shade tube, and one end of the driving mechanism extends out of the roller shade tube and installed on the first mounting seat; the second mounting seat is located at the end of the second retractor away from the roller shade tube, and the second mounting seat is rotatably connected with the second retractor.

Preferably, one end of the ratchet mechanism is connected to the second retractor, and the torsion mechanism and the second retractor are unidirectionally rotated through the ratchet mechanism, and the torsion mechanism passes through the second coil Receiver rotation preload.

Preferably, the ratchet mechanism includes a driving ratchet and a driven ratchet sleeve matched with the driving ratchet, the driving ratchet is embedded in the driven ratchet sleeve and drives the driven ratchet sleeve The active ratchet is connected to the second retractor through a connecting support shaft, and the second retractor rotates to drive the active ratchet to rotate.

Preferably, the ratchet mechanism further includes a ratchet compression spring, the ratchet compression spring is located at an end of the driving ratchet away from the driven pawl sleeve, and abuts against the driving ratchet.

Another aspect of the utility model provides a roller blind device, which includes:

The above-mentioned roller shutter adjustment mechanism;

The roller blind body, the roller shutter adjusting mechanism is installed on the roller blind body;

The slide rail includes a first slide rail and a second slide rail arranged at intervals, and the first end of the first slide rail and the first end of the second slide rail are connected to an end of the roller shade body close to the roller shade adjustment mechanism , the second end of the first slide rail and the second end of the second slide rail extend from the connection to a direction away from the roller blind adjustment mechanism;

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

Reversing wheels, including at least two first reversing wheels and at least two second reversing wheels, the first reversing wheels are respectively installed in the first end of the mop rod and the first slide rail In the second end, the second reversing wheel is respectively installed in the second end of the mop rod and in the second end of the second slide rail;

A curtain, the first end of which is connected to the roller shade tube, the roller shade tube rotates to drive the curtain to wind on the roller shade tube or unfold from the roller shade tube, and the second end is connected to the mop rod;

An endless synchronous belt, the two ends of which are respectively connected to the first retractor and the second retractor, and the middle part is sequentially slidably connected to the first reversing wheel in the first slide rail, the second mop rod a first reversing wheel in one end, a second reversing wheel in the second end of the mop rod, and a second reversing wheel in the second slide rail;

The driving mechanism drives the first retractor and the second retractor to rotate, and the synchronous belt is wound on the moving first retractor and the second retractor or driven by the first retractor and the second retractor Expand on the retractor so that the mop rod is close to or away from the roller blind adjustment mechanism.

Preferably, the roller blind device further includes a casing, the casing is provided with an accommodating cavity for installing the roller blind adjustment mechanism, and the casing communicates with the accommodating cavity along the axial direction. Cloth introduction holes, the left and right ends of the casing are respectively provided with shell openings communicating with the accommodating cavity, the roller shutter adjustment mechanism also includes a first mounting seat and a second mounting seat, the first mounting seat The seat and the second mounting seat are installed on the housing opening respectively.

Description of drawings

The above and other objects, features and advantages of the present invention will become more clear through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals designate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size and the emphasis is on illustrating the gist of the present invention.

Fig. 1 is a roller blind in the prior art;

Fig. 2 is a structural schematic diagram of the roller shutter adjustment mechanism;

Fig. 3 is a sectional view of the roller shutter adjustment mechanism;

Fig. 4 is a partial enlarged view of A in Fig. 3;

Fig. 5 is a partial enlarged view of B in Fig. 3;

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

Fig. 7 is the structural representation of ratchet mechanism;

Fig. 8 is a structural schematic diagram of the cooperation between the first spring seat and the roller shutter tube;

Fig. 9 is a structural schematic diagram of a roller blind device;

Fig. 10 is a schematic structural view of the cooperation of the retractor, the timing belt and the reversing wheel.

Reference signs: shutter adjustment mechanism 100, first retractor 101, second retractor 102, drive mechanism 103, drive connector 104, torsion mechanism 105, torsion spring 106, first spring seat 107, second spring Seat 108, guide shaft 109, ratchet mechanism 110, driving ratchet 111, driven ratchet sleeve 112, ratchet clip spring 113, first mount 114, second mount 115, mount bearing 116, No. 1 bearing 117, No. 2 bearing 118, limit slider 119, limit slot 120, connecting support shaft 121, first installation sleeve 122, second installation sleeve 123, fixing screw 124, limit pawl 125, square shaft hole 126 , roller shutter tube 127;

Roller blind body 1, cover 2, cord 3, timing belt 4, first reversing wheel 5, first wheel 6, second wheel 7, second reversing wheel 8, third wheel 9, fourth wheel 10, The first slide rail 11, the second slide rail 12, the mop rod 13.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

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

Please refer to Fig. 2-Fig. 8, the utility model provides a roller blind adjustment mechanism 100, which includes: a roller blind tube 127; retractor, including a first retractor 101 and a second retractor 102, the first roller The retractor 101 is fixedly connected to one end of the roller shade tube 127, the first retractor 101 can rotate around the axis with the roller shade tube 127, and the second retractor 102 is located at the other end of the roller shade tube 127 and can be compared The roller shutter tube 127 is free to rotate; the torsion mechanism 105 keeps the roller shutter tube 127 and the second retractor 102 in the opposite direction; The retractor 101, the second retractor 102 and the shutter pipe 127 rotate around the axis together; the ratchet mechanism 110, one end of the ratchet mechanism 110 is connected with the torsion mechanism 105, and the torsion mechanism 105 rotates through the ratchet mechanism 110 so that the torsion mechanism 105 can Twist and pretighten in the tightening direction, and at the same time limit the rotation of the torsion mechanism 105 in the direction opposite to the pretightening direction, that is, use the nature of the one-way rotation of the ratchet mechanism 110 to achieve convenient and safe pre-twisting of the torsion mechanism 105. In the ratchet mechanism 110 Under the position-limiting action, the hand can be loosened halfway during adjustment by hand and has the ability to prevent accidental hand slipping, and the torsion force of the torsion mechanism 105 will cause harm to people.

Specifically, please refer to FIG. 5-FIG. 7. The ratchet mechanism 110 includes a driving ratchet 111 and a driven ratchet sleeve 112 matched with the driving ratchet 111. The driving ratchet 111 is embedded in the driven ratchet sleeve 112 and drives the driven ratchet. The ratchet sleeve 112 rotates in one direction, and the driving ratchet 111 and the driven ratchet sleeve 112 are respectively provided with matching limit pawls 125, so that the driving ratchet 111 rotates in one direction under the limit action of the driven ratchet sleeve 112 , the active ratchet 111 is connected to the second retractor 102 through the connecting support shaft 121, the middle part of the active ratchet 111 and the second retractor 102 are provided with a square shaft hole 126, and the left end of the connecting support shaft 121 is a square shaft with the above two The square shaft matched with the hole 126 drives the driving ratchet 111 to rotate when the second retractor 102 rotates. The ratchet mechanism 110 also includes a ratchet compression spring 113. The ratchet compression spring 113 is located at the end of the driving ratchet 111 away from the driven pawl sleeve 112, and abuts against the driving ratchet 111. The ratchet compression spring 113 makes the driving ratchet 111 and the driven ratchet sleeve 112 fit together. When in use, take the clockwise rotation of the torsion mechanism 105 as an example of the pre-tightening direction. When the torsion mechanism 105 needs to be pre-tightened, the second retractor 102 is rotated clockwise, and the second retractor 102 is connected to the support shaft 121 to drive the active ratchet 111, and the driving ratchet 111 can rotate clockwise, and the driven pawl cover 112 can limit the counterclockwise rotation of the driving ratchet 111, thereby hindering the reverse rotation of the torque mechanism 105, the connecting support shaft 121 and the second retractor 102. The hour hand turns. The ratchet mechanism 110 of the present utility model is not only suitable for the following new driving mode roller blind adjustment mechanism 100, those skilled in the art can reasonably guess that the ratchet mechanism 110 of the present utility model is also applicable to the roller blind adjustment mechanism 100 in CN102767328A, which is not described here Let me repeat.

Please refer to Fig. 2-Fig. 8, on the other hand, the utility model provides a roller blind adjustment mechanism 100 of a new driving mode, which includes: a roller blind tube 127; a driving mechanism 103, which can be a motor, is located in the roller blind tube 127 to drive The mechanism 103 drives the roller shutter tube 127 to rotate around the axis; the retractor includes a first retractor 101 and a second retractor 102, the first retractor 101 is fixedly connected to one end of the roller shutter tube 127, and the first retractor The retractor 101 can rotate around the axis with the roller shade tube 127, and the second retractor 102 is located at the other end of the roller shade tube 127 and can rotate freely compared with the roller shade tube 127; the torsion mechanism 105 can be a torsion bar Or a tubular torsion spring 106, one end is connected with the roller shutter tube 127, and the other end is connected with the second retractor 102, the torsion mechanism 105 keeps the roller shutter tube 127 and the second retractor 102 in the opposite direction. When the tube 127 rotates, it drives the torque mechanism 105 to rotate, and drives the second retractor 102 to rotate together. Compared with the prior art, the utility model no longer needs the first inner tube 50b, the inner tube connector 6b and the second inner tube 51b to cooperate with the transmission; The way of connection, and the way the motor drives the spring, roller shade tube 127 and the two retractors, the internal transmission parts do not need to adapt to the change of the length of the outer tube.

5-8, the torsion mechanism 105 includes a tubular torsion spring 106, a first spring seat 107 at one end of the torsion spring 106, and a second spring seat 108 at the other end of the torsion spring 106. The axis of the spring 106 is arranged along the axial direction of the roller shutter pipe 127, the first spring seat 107 is embedded in the roller shutter pipe 127, the second spring seat 108 is fixedly connected with the second retractor 102; the torsion spring 106 makes the roller The curtain tube 127 and the second retractor 102 maintain a tendency of rotation in opposite directions. When the curtain tube 127 rotates, it drives the torsion spring 106 to rotate, and drives the second retractor 102 to rotate together. The outer peripheral wall of the first spring seat 107 is provided with a limit slider 119, and the inner wall of the roller shutter tube 127 is provided with a plurality of limit slots 120, and the limit slots 120 extend along the axial direction of the inner wall of the roller shutter tube 127, and the limit slots 120 Slidingly connected with the limit slider 119, the limit slider 119 can move along the axial direction of the limit slot 120. When the torsion spring 106 is pre-tightened, the first spring seat 107 is subjected to the torsion force of the torsion spring 106 along the circumferential direction on the one hand. The role of the compression torsion spring 106 is subjected to the leftward elastic force along the axial direction, and on the other hand, it is also subjected to the support force along the circumferential direction of the limit slot 120 on the inner wall of the roller shutter tube 127 and the leftward frictional force along the axial direction; After pre-tightening the torsion spring 106, the torsion force of the torsion spring 106 is the same as that of the support force, and the direction is opposite, and the friction force is the same as that of the elastic force, and the direction is opposite, that is, the first spring seat 107 can be static on the inner wall of the roller shutter tube 127; When the device 102 receives the synchronous belt 4 or releases the synchronous belt 4, the torsion force of the torsion spring 106 becomes larger or smaller, and the first spring seat 107 moves to the right or left 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 blind tube 127, and now the supporting force becomes larger or smaller and is the same as the torsion force of the torsion spring 106, and the frictional force and the elastic force become larger or smaller and the two are renewed. same. The torsion mechanism 105 also includes a guide shaft 109 arranged axially along the torsion spring 106. The guide shaft 109 is embedded in the shaft of the torsion spring 106. The guide shaft 109 makes the torsion spring 106 twist in the circumferential direction without twisting in the radial direction. The direction is distorted, one end of the guide shaft 109 passes through the middle of the first spring seat 107 , and the guide shaft 109 and the first spring seat 107 can rotate relative to each other. The roller shutter adjustment mechanism 100 also includes a first mounting seat 114 and a second mounting seat 115, the first mounting seat 114 is located at the end of the first retractor 101 away from the roller shutter tube 127, and one end of the driving mechanism 103 extends out of the roller shutter tube 127 and Installed on the first mounting base 114 ; the second mounting base 115 is located at the end of the second retractor 102 away from the roller shutter tube 127 , and the second mounting base 115 is connected to the second retractor 102 in rotation. The driving mechanism 103 of the utility model drives the roller shutter tube 127 to rotate on the one hand, and drives the first retractor 101 to rotate; The second spring seat 108, the connecting support shaft 121 and the second retractor 102 rotate. On the one hand, when the utility model is rewinding or unwinding the cord 3, the torsion spring 106 is in the working state and outputs a certain torque, so that the space between the outer tube and the cord 3 is tightened, so that the cord 3 can be rolled or unrolled smoothly. On the other hand, the first spring seat 107, guide shaft 109 and torsion spring 106 do not need to be directly connected with the drive mechanism 103, and these internal transmission parts do not need to adapt to the change of the outer tube length, and can be made into general parts.

In a preferred embodiment, please refer to Fig. 3-Fig. 4, the right end of the drive mechanism 103 is output, and the drive connector 104, the drive connector 104 is connected to the inner wall of the roller shutter tube 127, and the drive mechanism 103 drives the roll through the drive connector 104 The curtain tube 127 rotates, the left end of the driving mechanism 103 is installed on the first mounting seat 114, and runs through the first installation bushing 122, the first installation bushing 122 and the left end of the driving mechanism 103 can rotate relatively, and the first installation bushing 122 is installed At the left end mouthpiece of roller shutter tube 127.

In a preferred embodiment, please refer to FIG. 5-FIG. 6, the second mount 115 is provided with a mount bearing 116, the torsion mechanism 105 also includes a connecting support shaft 121, and the right end of the connecting support shaft 121 is rotatably mounted on the mount bearing 116. Inside, the left end connecting the support shaft 121 is a square shaft, which runs through the second retractor 102, the second bearing 118, the second installation shaft sleeve 123, the driven pawl sleeve 112, the driving ratchet 111, and the ratchet from right to left. Compression spring 113, No. 1 bearing 117 and second spring seat 108, wherein the second retractor 102, driving ratchet 111 and second spring seat 108 are all provided with square shaft holes 126 matched with square shafts to connect the three The supporting shaft 121 rotates together, the right end of the installation of the second installation sleeve 123 is on the left end of the second retractor 102, and the two are connected by the rotation of the second bearing 118, the second installation sleeve 123 is sleeved on the second spring seat 108 outside, and the No. 1 bearing 117 is rotatably connected between the two, the fixing screw 124 stretches into the right end of the second spring seat 108 and connects with the screw hole connecting the left end of the support shaft 121, and the driven pawl cover 112 is fixedly installed In the right end of the second mounting sleeve 123 .

Another aspect of the present application provides a roller blind device. Another aspect of the utility model provides a roller blind device. The roller blind device includes: the above-mentioned roller blind adjustment mechanism 100; On the roller blind body 1; the slide rails include a first slide rail 11 and a second slide rail 12 arranged at intervals, and the first end of the first slide rail 11 and the first end of the second slide rail 12 are close to the roller blind body 1 One end of the roller shade adjustment mechanism 100 is connected, and the second end of the first slide rail 11 and the second end of the second slide rail 12 extend from the connection to the direction away from the roller shade adjustment mechanism 100; the mop rod 13, the first end and the second end The two ends are slidably connected in the first slide rail 11 and the second slide rail 12; the reversing wheel includes at least two first reversing wheels 5 and at least two second reversing wheels 8, generally the first reversing wheel The wheels include a No. 1 wheel 6 and a No. 2 wheel 7, which are respectively installed in the first end of the mop bar 13 and in the second end of the first slide rail 11. The second reversing wheel generally includes a No. 3 wheel 9 and a No. 4 wheel. 10, respectively installed in the second end of the mop rod 13 and the second end of the second slide rail 12; the curtain 3, the first end is connected with the roller shade tube 127, and the roller shade tube 127 rotates to drive the curtain 3 to be wound on the roll On the curtain tube 127 or from the rolling curtain tube 127, the second end is connected with the mop rod 13; the annular synchronous belt 4 can be a steel wire or a belt, and its two ends are connected with the first retractor 101 and the second retractor respectively. 102, the middle part is slidingly connected to the first wheel 6, the second wheel 7, the third wheel 9 and the fourth wheel 10 in turn; the driving mechanism 103 drives the first retractor 101 and the second retractor 102 to rotate, and the timing belt 4 Winding on the moving first retractor 101 and the second retractor 102 or unwinding on the driven first retractor 101 and the second retractor 102, so that the mop rod 13 is close to or away from the roller blind adjustment mechanism 100 . Furthermore, the roller blind device also includes a casing 2, the casing 2 is provided with an accommodating cavity for installing the roller blind adjustment mechanism 100, and the casing 2 has a cloth introduction hole communicating with the accommodating cavity along the axial direction. The left and right ends of the casing 2 are respectively provided with shell openings communicating with the accommodating cavity, and the roller shutter adjustment mechanism 100 also includes a first mounting seat 114 and a second mounting seat 115, and the first mounting seat 114 and the second mounting seat 114 The seats 115 are installed on the housing openings, respectively. During use, after the casing 2 is installed at the target position, the torsion spring 106 in the shutter adjustment mechanism 100 is pre-tightened, the timing belt 4 is laid out and the first retractor 101 and the second retractor 102 are respectively connected. After the installation is completed The roller blind device can be put into use. Drive the roller shade tube 127, the first retractor 101 and the second retractor 102 to rotate through the motor, the curtain 3 can be wound on the roller shade tube 127 and packed up or unfolded from the roller shade tube 127; Simultaneously, the first retractor 101 and the second retractor 102 wind up or unfold a length corresponding to the left and right ends of the synchronous belt 4 respectively. Tighten, it is convenient for cord 3 to be rolled up or unrolled smoothly (torsion spring 106 keeps cord 3 taut, please refer to CN102767328A for more details).

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions with reference to the terms "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" mean that the specific features, structures, A material or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A roller shutter adjustment mechanism, comprising:

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.

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;

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.

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.

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