Sunshade window

Abstract

The present application relates to the technical field of curtain, especially to a sunshade window. The sunshade window comprises a window frame, a curtain body, a rope winding device assembly and a control assembly. The control assembly drives the curtain body to move up and down. The curtain body is connected with a plurality of control ropes. The rope winding device assembly comprises a locking rope winding device. The locking rope winding device comprises a housing and a rope winding shaft for winding or releasing the control ropes. A locking limiting piece is movably arranged in the housing and located below the rope winding shaft. A reset piece is arranged between the locking limiting piece and the housing. The control ropes pass through the locking limiting piece and are connected with the curtain body through the rope outlet holes of the housing. The locking limiting piece is adapted to switch between a locking state and an unlocking state. In the locking state, the locking limiting piece limits the rotation of the rope winding shaft. In the unlocking state, the control ropes pull the locking limiting piece away from the rope winding shaft. By using the present application, the curtain body can be effectively prevented from being stuck due to the suspension of the curtain body caused by external factors, the safety performance of the sunshade window during use is effectively improved, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of window curtains, in particular to a sunshade window. BACKGROUND

[0002] As a common window decoration and sunshade device, the shutter is widely used due to its various functions and neat and beautiful appearance. According to different driving modes, the shutter is mainly operated through a winding rope device to realize winding and releasing of the pull rope and the ladder rope, corresponding to stretching and storing of the shutter blade and adjusting the inclination angle of the shutter blade to realize light adjustment.

[0003] However, if the shutter blade is temporarily stopped from descending due to misoperation (such as manual mis-supporting the bottom of the shutter blade) or other external factors, the internal winding rope device may continue to rotate to release the rope. At this time, the pull rope is prone to increase the degree of rope relaxation due to the stop of the bottom, resulting in contact between the front end and the rear end of the pull rope and problems such as entanglement and disorder, causing the shutter blade to be stuck and damaging the shutter, affecting user use. SUMMARY

[0004] In order to solve the defects of the prior art, the present application provides a sunshade window which can effectively avoid the shutter from being stuck due to external factors temporarily stopping the descent of the shutter body, effectively improve the safety performance of the sunshade window during use, and improve the user experience.

[0005] In order to solve the above technical problems, the present application provides a sunshade window, comprising a window frame, a shutter body, a winding rope device assembly and a control assembly, the control assembly drives the shutter body to ascend and descend, the shutter body is connected with a plurality of control ropes, the winding rope device assembly comprises a locking winding rope device, and at least one control rope is connected with the locking winding rope device assembly.

[0006] The locking winding rope device comprises a shell and a winding shaft for winding or releasing the control rope, a locking limiting piece is movably arranged in the interior of the shell, the locking limiting piece is located below the winding shaft, and a reset piece is arranged between the locking limiting piece and the shell; the control rope passes through the locking limiting piece and is connected with the shutter body through a rope outlet hole of the shell.

[0007] The locking limiting piece is adapted to switch between a locking state and an unlocking state, wherein in the locking state, the control rope is relaxed, the reset piece abuts the locking limiting piece against the winding shaft, so that the locking limiting piece limits rotation of the winding shaft; in the unlocking state, the control rope is tensioned, and the control rope pulls the locking limiting piece away from the winding shaft.

[0008] As an improvement of the above-mentioned scheme, the control assembly comprises an electric drive, a control board and a stroke controller, the electric drive is in transmission connection with the rope winding assembly through the rotating shaft, and the electric drive is connected with the power supply through the control board.

[0009] The stroke controller is electrically connected with the electric drive, and the stroke controller is used for limiting the lifting stroke and the descending stroke of the curtain body.

[0010] As an improvement of the above-mentioned scheme, the control assembly comprises an electric drive and an overload protection controller, and the electric drive is in transmission connection with the rope winding assembly.

[0011] The overload protection controller is electrically connected with the electric drive, and the overload protection controller is used for stopping the lifting of the curtain body.

[0012] As an improvement of the above-mentioned scheme, the window frame is internally hollow, the control assembly comprises a manual drive and a transmission member, and the manual drive is in transmission connection with the rope winding assembly through the transmission member.

[0013] As an improvement of the above-mentioned scheme, the curtain body is arranged outside the window frame, the window frame is provided with the rope outlet hole, the control rope passes out of the window frame from the rope outlet hole and is connected with the curtain body.

[0014] As an improvement of the above-mentioned scheme, the rope winding assembly comprises at least one set of the locking rope winding assembly and at least one set of driven rope winding assembly, the locking rope winding assembly is in transmission connection with the driven rope winding assembly, and each set of the driven rope winding assembly is connected with one of the control ropes.

[0015] As an improvement of the above-mentioned scheme, in the locking state, the locking limiting member and the rope winding shaft are in contact through a limiting surface, and the reset member is used for applying a predetermined direction force to the locking limiting member, the predetermined direction is from the locking limiting member to the rope winding shaft, so that the locking limiting member is used for frictionally holding the rope winding shaft.

[0016] As an improvement of the above-mentioned scheme, the limiting surface comprises a first limiting surface arranged on the locking limiting member and a second limiting surface arranged on the rope winding shaft, the wall surface of the locking limiting member towards the rope winding shaft forms the first limiting surface, and in the locking state, the first limiting surface abuts against the second limiting surface.

[0017] As an improvement of the above-mentioned scheme, in the locking state, the locking limiting member and the rope winding shaft form a mechanical limiting stop.

[0018] As an improvement of the above-mentioned scheme, when the curtain body descends, the rope winding shaft rotates along a first preset direction.

[0019] The locking limiting piece is formed with a first stop surface, and the first stop surface is opposite to the first preset direction; the outer circumferential surface of the rope winding shaft is formed with a first abutting surface, and the first abutting surface is the same as the first preset direction;

[0020] When the locking limiting piece is switched to the locking state, the first stop surface is located on the rotating path of the first abutting surface.

[0021] As an improvement of the above scheme, the locking limiting piece is formed with a first mounting groove, the first mounting groove is directed to the bottom wall of the shell, the reset piece is mounted in the first mounting groove, one end of the reset piece is abutted to the top wall of the first mounting groove, and the other end of the reset piece is abutted to the bottom wall of the shell.

[0022] As an improvement of the above scheme, the locking limiting piece is slidably connected with the shell, or the locking limiting piece is rotatably connected with the shell.

[0023] As an improvement of the above scheme, the inner wall of the shell is formed with a guide portion, the locking limiting piece is slidably connected with the shell through the guide portion, the guide portion extends along a third preset direction, the third preset direction is directed from the bottom wall of the shell to the rope winding shaft, and the reset piece is arranged on the side of the locking limiting piece away from the rope winding shaft.

[0024] Or, the locking limiting piece is formed with a rotating shaft, the locking limiting piece is rotatably connected with the side surface of the shell through the rotating shaft, the reset piece is sleeved on the rotating shaft, and when switching from the unlocking state to the locking state, the locking limiting piece rotates towards the rope winding shaft.

[0025] As an improvement of the above scheme, the rope winding shaft comprises a winding shaft and a page turning wheel, and the locking limiting piece is located below the page turning wheel.

[0026] The side of the locking limiting piece directed to the rope outlet hole is formed with a second mounting groove, a deflection wheel is rotatably connected with the second mounting groove, and the deflection wheel is located above the rope outlet hole.

[0027] The control rope penetrates into the second mounting groove, bypasses the deflection wheel, and is connected to the curtain body from the rope outlet hole.

[0028] As an improvement of the above scheme, the shell is formed with a circular arc support, the page turning wheel is rotatably arranged in the circular arc support, the shell is formed with a placing groove, the placing groove is located above the circular arc support, and the page turning wheel is adapted to be placed into the circular arc support from above or from the side of the placing groove, so as to facilitate the installation of the page turning wheel.

[0029] As an improvement of the above-mentioned scheme, a guide column is arranged above the arc-shaped support, a gland is slidingly connected to the guide column, the gland is located above the arc-shaped support, and the page turning wheel is located between the gland and the arc-shaped support.

[0030] As an improvement of the above-mentioned scheme, the rope winding shaft is provided with a rope fixing end away from the locking limiting piece, a rotating sliding block is rotationally connected to the rope winding shaft, the rotating sliding block is in threaded transmission with the inner wall surface of the shell, the shell is provided with a translation sliding block, and the translation sliding block is connected with the rotating sliding block; the rotating sliding block is used to drive the translation sliding block to move along the length direction of the rope winding shaft; the translation sliding block is internally provided with a guide wheel.

[0031] As an improvement of the above-mentioned scheme, the control rope is formed with a preset winding length on the rope winding shaft, the preset winding length is less than or equal to the length of the curtain body when it is fully opened, so as to limit the lifting stroke or the descending stroke of the curtain body driven by the control rope.

[0032] As an improvement of the above-mentioned scheme, the rope winding shaft is provided with a stroke limiting piece, the stroke limiting piece is located on the moving path of the translation sliding block, the control rope is wound between the stroke limiting piece and the rope fixing end, and the side surface of the stroke limiting piece away from the locking limiting piece is adapted to abut against the translation sliding block.

[0033] As an improvement of the above-mentioned scheme, when the curtain body is retracted, the rope winding shaft rotates along a second preset direction;

[0034] The side surface of the stroke limiting piece away from the locking limiting piece is provided with a limiting boss, the limiting boss is formed with a second abutting surface, and the direction of the second abutting surface is the same as the second preset direction;

[0035] The side surface of the translation sliding block toward the stroke limiting piece is formed with a limiting notch, the limiting notch is formed with a second stop surface, and the direction of the second stop surface is opposite to the second preset direction;

[0036] When the translation sliding block abuts against the stroke limiting piece, the second stop surface is located on the rotating path of the second abutting surface.

[0037] As an improvement of the above-mentioned scheme, the shell comprises a first base and a second base which are detachably connected, the first base is formed with a first matching side surface, the second base is formed with a second matching side surface, and a spacing is formed between the first matching side surface and the second matching side surface, the spacing is equal to the width of the locking limiting piece.

[0038] As an improvement of the above scheme, a first positioning part is formed on the side of the first base, and a second positioning part is formed on the side of the second base, and the first positioning part is positioned and matched with the second positioning part.

[0039] A plurality of first connecting parts are formed on the outer edge of the first base, and a plurality of second connecting parts are formed on the outer edge of the second base, and the first connecting parts are detachably connected with the second connecting parts.

[0040] The present application has the following beneficial effects:

[0041] The sunshade window of the embodiment can limit the rotation of the winding rope shaft in the locked state and disengage the winding rope shaft in the unlocked state, and can adjust the release state of the control rope according to the tightness of the control rope.

[0042] Specifically, initially, the curtain body is completely retracted, the winding rope shaft winds the control rope, and the control rope is kept taut by the cooperation of the winding rope shaft and the weight of the curtain body. At this time, the weight of the curtain body can be applied to the locking limiting part through the control rope, the locking limiting part is in the unlocked state, and the winding rope shaft can rotate. When the curtain body needs to be unfolded, the winding rope shaft can be driven to rotate to release the control rope, so that the curtain body is lowered under the cooperation of the curtain body weight and the control rope.

[0043] If the curtain sheet has a problem or pauses in the lowering process due to external factors such as human support of the bottom of the curtain body, at this time, the weight of the curtain body no longer acts on the control rope, and the control rope begins to relax under the rotation of the winding rope shaft. Further, under the resetting force of the resetting part, the resetting part pushes the locking limiting part to move towards the winding rope shaft and abuts against the winding rope shaft, so as to switch the locking limiting part from the unlocked state to the locked state, thereby limiting the rotation of the winding rope shaft, so that the winding rope shaft cannot continue to release the control rope, and the control rope continues to release when the curtain sheet pauses in the lowering process.

[0044] After the external factors are removed and the curtain body can be lowered again, the weight of the curtain body can act on the control rope again, at this time, the winding rope shaft can be driven to reverse a certain angle, so as to re-cooperate the winding rope shaft and the weight of the curtain body, so that the control rope is re-taut, and the weight of the curtain body is re-applied to the locking limiting part through the control rope, so as to drive the locking limiting part to move away from the winding rope shaft, so that the locking limiting part disengages from the winding rope shaft and switches from the locked state to the unlocked state, so that the winding rope shaft rotates to continue to release the control rope, and the lowering action of the curtain body is completed.

[0045] Further, the locking limiting piece is switched between the unlocked state and the locked state by cooperation between the locking limiting piece, the reset piece and the control rope, so that the control rope can be stopped from being released and the tension of the control rope can be maintained when the control rope starts to relax, and the control rope can be released when the control rope is tensioned. Therefore, the sunshade window of the embodiment can maintain a certain degree of tension of the control rope when the curtain body is suspended in the middle due to external factors, avoid the problem of entanglement and disorder of the control rope due to excessive relaxation, prevent the curtain body from being stuck, effectively improve the safety performance of the sunshade window during use, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a structural schematic diagram of a sunshade window in the first embodiment of the application;

[0047] Figure 2 is a structural schematic diagram of a locking rope winder in the first embodiment of the application, wherein the first base and the gland are not shown;

[0048] Figure 3 is an exploded structural schematic diagram of the locking rope winder in the first embodiment of the application;

[0049] Figure 4 is a relative position diagram of the rope winding shaft and the locking limiting piece in the first embodiment of the application, wherein the locking limiting piece is in the unlocked state;

[0050] Figure 5 is a relative position diagram of the rope winding shaft and the locking limiting piece in the first embodiment of the application, wherein the locking limiting piece is in the locked state;

[0051] Figure 6 is a relative position diagram of the page turning wheel and the locking limiting piece in the first embodiment of the application, wherein the locking limiting piece is in the locked state;

[0052] Figure 7 is a relative position diagram of the page turning wheel and the locking limiting piece in the first embodiment of the application, wherein the locking limiting piece is in the unlocked state;

[0053] Figure 8 is a relative position diagram of the locking limiting piece, the first base and the second base in the first embodiment of the application;

[0054] Figure 9 is a relative position diagram of the stroke limiting piece and the translation slider in abutment in the first embodiment of the application;

[0055] Figure 10 is a three-dimensional structural schematic diagram of the first base in the first embodiment of the application;

[0056] Figure 11 is a three-dimensional structural schematic diagram of the second base in the first embodiment of the application;

[0057] Figure 12 is a schematic view of a main structure of an electric sunshade window in a second embodiment of the present application;

[0058] Figure 13 is a schematic view of a main structure of a manual hollow sunshade window in a third embodiment of the present application;

[0059] Figure 14 is a schematic view of a main structure of an external electric sunshade curtain in a fourth embodiment of the present application;

[0060] Figure 15 is a schematic view of a main structure of an external manual sunshade curtain in the fourth embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to make the object, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer directions appearing or about to appear in the present application in the text are based on the drawings of the present application, and are not specific limitations on the present application.

[0062] In the embodiments of the present application, as shown in Figure 1 , the sunshade window comprises a window frame 1, a curtain body 4, a rope winding assembly and a control assembly 2, the control assembly 2 drives the curtain body 4 to ascend and descend, the curtain body 4 is connected with a plurality of control ropes 5, the rope winding assembly comprises a locking rope winding device 3, and at least one control rope 5 is connected with the locking rope winding device 3.

[0063] As shown in Figure 2 and Figure 3 , the locking rope winding device 3 comprises a housing 31 and a rope winding shaft 32 for winding or releasing the control rope 5, a locking limiting piece 33 is movably arranged in the inside of the housing 31, the locking limiting piece 33 is located below the rope winding shaft 32, and a reset piece 34 is arranged between the locking limiting piece 33 and the housing 31; the control rope 5 passes through the locking limiting piece 33 and is connected with the curtain body 4 through a rope outlet hole of the housing 31.

[0064] As shown in Figures 4 to 7 , the locking limiting piece 33 is adapted to switch between a locking state and an unlocking state, wherein in the locking state, the control rope 5 is slack, the reset piece 34 abuts the locking limiting piece 33 against the rope winding shaft 32, so that the locking limiting piece 33 limits the rotation of the rope winding shaft 32; in the unlocking state, the control rope 5 is taut, and the control rope 5 pulls the locking limiting piece 33 away from the rope winding shaft 32.

[0065] The sunshade window of the present embodiment utilizes the locking limiting piece 33 to limit the rotation of the rope winding shaft 32 in the locking state and to be away from the rope winding shaft 32 in the unlocking state, so that the release state of the control rope 5 can be adjusted according to the tightness of the control rope 5.

[0066] Specifically, initially, the curtain body 4 is fully retracted, the winding rope shaft 32 winds the control rope 5, and the control rope 5 is kept taut by the cooperation of the winding rope shaft 32 and the self weight of the curtain body 4. At this time, the self weight of the curtain body 4 can be applied to the locking stopper 33 through the control rope 5, the locking stopper 33 is in an unlocked state, and the winding rope shaft 32 can rotate, that is, the relative position of the locking stopper 33 and the winding rope shaft 32 is in the state shown in FIG. 2. Figure 4 When it is needed to deploy the curtain body 4, the winding rope shaft 32 can be driven to rotate to release the control rope 5, so as to complete the lowering action of the curtain body 4 under the cooperation of the self weight of the curtain body 4 and the control rope 5.

[0067] If the curtain body 4 has a problem (such as tilting) or pauses in the lowering process due to external factors such as human support of the bottom of the curtain body 4, at this time, the self weight of the curtain body 4 no longer acts on the control rope 5, and the control rope 5 begins to relax under the driving of the rotation of the winding rope shaft 32. Further, under the resetting action of the reset member 34, the reset member 34 pushes the locking stopper 33 to move towards the winding rope shaft 32 and abuts against the winding rope shaft 32, so as to switch the locking stopper 33 from the unlocked state to the locked state, that is, the relative position of the locking stopper 33 and the winding rope shaft 32 is switched from the state shown in FIG. 2 to the state shown in FIG. 3. Figure 4 The relative position of the locking stopper 33 and the winding rope shaft 32 is switched from the state shown in FIG. 2 to the state shown in FIG. 3. Figure 5 The state shown in FIG. 3 is achieved, the rotation of the winding rope shaft 32 is limited, so that the winding rope shaft 32 cannot continue to release the control rope 5, and the control rope 5 continues to release to increase the relaxation of the control rope 5 when the curtain piece pauses in the lowering.

[0068] After the external factors are removed, the curtain body 4 can be lowered again, the self weight of the curtain body 4 can act on the control rope 5 again, at this time, the winding rope shaft 32 can be driven to rotate by the control assembly 2 to a certain angle, the locking state of the locking stopper 33 is removed, the control rope 5 is re-tensioned by the cooperation of the winding rope shaft 32 and the self weight of the curtain body 4 again, and the self weight of the curtain body 4 is applied to the locking stopper 33 through the control rope 5 again, so as to drive the locking stopper 33 to move away from the winding rope shaft 32, the locking stopper 33 is separated from the winding rope shaft 32, and the locking stopper 33 is switched from the locked state to the unlocked state, that is, the relative position of the locking stopper 33 and the winding rope shaft 32 is switched from the state shown in FIG. 3 to the state shown in FIG. 2. Figure 5 The relative position of the locking stopper 33 and the winding rope shaft 32 is switched from the state shown in FIG. 3 to the state shown in FIG. 2. Figure 4 The state shown in FIG. 2 is achieved, the winding rope shaft 32 can rotate to continue to release the control rope 5, and the lowering action of the curtain body 4 is completed.

[0069] Further, the cooperation between the locking limiting member 33, the reset member 34 and the control rope 5 can switch the locking limiting member 33 between the unlocked state and the locked state, so that the control rope 5 can be stopped from being released and the tension of the control rope 5 can be maintained when the control rope 5 starts to relax, and the control rope 5 can be released when the control rope 5 is tensioned. Therefore, the sunshade window of the embodiment can maintain a certain tension of the control rope 5 when the curtain body 4 is suspended in the middle due to external factors, so as to avoid the problem of the control rope 5 being tangled and disordered due to excessive relaxation, prevent the curtain body 4 from being stuck, effectively improve the safety performance of the sunshade window during use, and improve the user experience.

[0070] In addition, it should be noted that during the process of rewinding the control rope 5 by the winding rope shaft 32 to retract the curtain body 4 upward, the control rope 5 is in a tensioned state, and the weight of the curtain body 4 can be continuously applied to the locking limiting member 33 by the control rope 5, so as to ensure that the locking limiting member 33 is always in the unlocked state during the entire upward movement, and the locking limiting member 33 will not abut against the winding rope shaft 32 to limit the rotation of the winding rope shaft 32, thereby preventing the locking limiting member 33 from affecting the retraction of the curtain body 4.

[0071] In the first specific embodiment, as shown in Figure 12 The sunshade window can be an electric sunshade window, and the control assembly 2 includes an electric drive member 21 and a stroke controller 24. The electric drive member 21 is in transmission connection with the winding rope assembly, specifically, the rotating shaft 23 of the electric drive member 21 is in rotating connection with the winding rope shaft 32 of the winding rope assembly, so that the electric drive member 21 can drive the winding rope assembly to rotate, thereby completing the winding or releasing of the control rope 5 by the winding rope shaft 32. The electric drive member 21 is preferably a driving motor.

[0072] The stroke controller 24 is in electrical connection with the electric drive member 21, and the stroke controller 24 is used to limit the upward stroke and the downward stroke of the curtain body 4, so as to ensure that the curtain body 4 can stop at a specified position (or 1 / 2 height of the window frame 1, or the top of the window frame 1, or the bottom of the window frame 1).

[0073] Specifically, the stroke controller 24 can be a stroke switch, which can be placed on the lifting path of the curtain body 4, so as to correspondingly touch the stroke switch according to the upward state or the downward state of the curtain body 4, and send a signal to the control panel 22 to stop the operation of the electric drive member 21, thereby stopping the rotation of the winding rope shaft 32 and stopping the upward movement or the downward movement of the curtain body 4.

[0074] In addition, the stroke controller 24 can also be a position sensor, which can be placed at the position of the upward stroke of the curtain body 4 and / or the downward stroke of the curtain body 4, so that when the curtain body 4 moves to the upward stroke and / or the downward stroke, the corresponding movement state can be detected by the position sensor, thereby controlling the electric drive member 21 to stop operating, stopping the winding rope shaft, and stopping the upward movement or the downward movement of the curtain body 4.

[0075] In the second embodiment, the control assembly 2 comprises an electric drive 21 and an overload protection controller (not shown in the figure) which is electrically connected to the electric drive 21. The electric drive 21 is in transmission connection with the rope winding assembly. The overload protection controller can detect the current change through the electric drive 21. When the current exceeds a predetermined value, the overload protection controller automatically cuts off the power supply circuit of the electric drive 21 to stop the electric drive 21 and thus stop the lifting of the curtain body 4.

[0076] In the third embodiment, as shown in Figure 13 , the sunshade window is a manual hollow sunshade window. The window frame 1 is hollow inside. The control assembly 2 comprises a manual drive 25 and a transmission member. The manual drive 25 is in transmission connection with the rope winding assembly through the transmission member. In use, the user can drive the manual drive 25 to ascend or descend to drive the rope winding shaft 32 to rotate, thereby winding or releasing the control rope 5.

[0077] As an optional embodiment, the manual drive 25 is an external magnetic group (such as a magnet or a shell provided with a magnet) arranged on the outer side wall of the window frame. An internal magnetic group (such as a magnet or a shell provided with a magnet) is arranged on the inner side wall of the window frame as the transmission member. The external magnetic group is magnetically attracted to the internal magnetic group. The internal magnetic group is in transmission connection with the rope winding shaft 32. When the user rotates the external magnetic group, the magnetic field change of the external magnetic group can drive the internal magnetic group to rotate, thereby driving the rope winding shaft 32 to rotate and achieving torque transmission and movement.

[0078] Of course, the manual drive 25 is not limited to the external magnetic group. It can also be a pull bead or other curtain rope.

[0079] In the fourth embodiment, as shown in Figure 14 and Figure 15 , the sunshade window comprises an external sunshade curtain. The curtain body 4 is arranged outside the window frame 1. The window frame 1 is provided with a rope outlet hole. The control rope 5 passes out of the window frame 1 through the rope outlet hole and is connected to the curtain body 4.

[0080] Among them, the external sunshade curtain can also be selectively arranged with an electric drive 21 or a manual drive 25. The relevant structure will not be described here.

[0081] The specific arrangement of the locking and limiting member in the first embodiment will be described below. However, it should be noted that the following arrangement is also applicable to the other three embodiments and can also avoid the problem of entanglement and disorder of the control rope due to excessive slackness.

[0082] It should be noted that a plurality of rope winding assemblies are usually arranged in the sunshade window to keep the curtain body stable in lifting or lowering. Some of the rope winding assemblies play an auxiliary role to ensure the horizontal lifting of the curtain body. The control rope in the normal state can be loose or tight. In order to avoid the auxiliary rope winding assembly from locking the descending action of the curtain body when the rope is loose, as shown in Figure 1 , Figures 12 to 14As shown, the rope winding assembly comprises at least one set of locking rope winding device 3 and at least one set of driven rope winding device, the locking rope winding device is rotationally connected with the driven rope winding device, and each set of driven rope winding device is connected with one control rope. By setting the locking limiting piece 33 in the locking rope winding device 3, and not setting the locking limiting piece 33 in the driven rope winding device, when the curtain body 4 appears to be tilted or paused to descend, the locking limiting piece 33 in the locking rope winding device 3 can be switched to the locking state to stop the winding shaft 32, and the other driven rope winding device can be stopped to release the control rope 5 synchronously, and the driven rope winding device does not have the locking function, so that the other winding device can avoid locking the descending action of the curtain body when the rope is loosened.

[0083] Preferably, the locking rope winding device 3 is arranged at the winding device position closest to the control assembly 2 and at the winding device position farthest from the control assembly 2, so as to ensure that the rotation stopping action of the winding shaft 32 takes effect quickly.

[0084] In order to ensure the locking limiting effect of the locking limiting piece 33 on the winding shaft 32, in the locking state, the locking limiting piece 33 and the winding shaft 32 are in contact through the limiting surface, and the reset piece 34 is used to apply a predetermined direction force to the locking limiting piece 33, the predetermined direction is from the locking limiting piece 33 to the winding shaft 32 (such as the Y-axis direction shown in Figure 4 and Figure 5 ), so as to use the locking limiting piece 33 to frictionally hold the winding shaft 32, and correspondingly limit the rotation of the winding shaft 32.

[0085] Specifically, as shown in Figure 6 and Figure 7 , the limiting surface comprises a first limiting surface 331 provided on the locking limiting piece 33 and a second limiting surface 3221 provided on the winding shaft, the wall surface of the locking limiting piece 33 towards the winding shaft 32 forms the first limiting surface 331, and in the locking state, the first limiting surface 331 abuts against the second limiting surface 3221.

[0086] Further, when the reset piece 34 pushes the locking limiting piece 33 to move towards the winding shaft 32 and abuts the locking limiting piece 33 against the winding shaft 32, the first limiting surface 331 of the locking limiting piece 33 is in contact with and abuts against the second limiting surface 3221 of the winding shaft 32, and the friction force between the first limiting surface 331 and the second limiting surface 3221 can offset the rotation torque of the winding shaft 32, so as to limit the rotation action of the winding shaft 32 in the form of frictional locking, stop releasing the control rope 5, and avoid that the control rope 5 is too loose due to excessive release.

[0087] In one specific example, as shown in Figure 7As shown, the first limiting surface 331 is a circular arc surface formed on the top of the locking limiting member 33, the outer periphery of the winding rope shaft 32 is formed with a convex ring 3223, the second limiting surface 3221 is the outer periphery surface of the convex ring 3223, the outer periphery surface of the convex ring 3223 is a circular arc surface, and the radius of the outer periphery surface of the convex ring 3223 is the same as that of the top circular arc surface of the locking limiting member 33. By abutting and matching the top circular arc surface of the locking limiting member 33 with the outer periphery surface of the convex ring 3223, a surface contact is formed, the friction between the locking limiting member 33 and the outer periphery of the winding rope shaft 32 is enhanced, and the rotation of the locking limiting member 33 on the winding rope device is ensured.

[0088] Wherein, when the curtain body 4 is lowered, the winding rope shaft 32 rotates along the first preset direction, which is the clockwise direction, to complete the release action of the control rope 5. If the torque of the electric drive 21 or the manual drive 25 of the winding rope shaft 32 is too large, the friction between the first limiting surface 331 and the second limiting surface 3221 may not be able to completely offset the rotation torque of the winding rope shaft 32.

[0089] To further ensure that the locking limiting member 33 can limit the rotation of the winding rope shaft 32 in the locked state, a mechanical limiting stop is formed between the locking limiting member 33 and the winding rope shaft 32 in the locked state.

[0090] Specifically, as shown in Figure 6 and Figure 7 , the locking limiting member 33 is formed with a first stop surface 3321, the direction of the first stop surface 3321 is opposite to the first preset direction; the outer periphery surface of the winding rope shaft 32 is formed with a first abutting surface 3222, the direction of the first abutting surface 3222 is the same as the first preset direction; and when the locking limiting member 33 is switched to the locked state, the first stop surface 3321 is located on the rotation path of the first abutting surface 3222.

[0091] It can be understood that when the first limiting surface 331 abuts against the second limiting surface 3221 and the winding rope shaft 32 still has a rotation tendency, the winding rope shaft 32 drives the first abutting surface 3222 to continue rotating. Since the first stop surface 3321 is located on the rotation path of the first abutting surface 3222, and the direction of the first stop surface 3321 is opposite to the rotation direction of the winding rope shaft 32, the first abutting surface 3222 can abut against the first stop surface 3321 when rotating, and the locking limiting member 33 can apply a reverse force to the first abutting surface 3222 of the winding rope shaft 32 by using the first stop surface 3321, so that a mechanical limiting stop is formed between the locking limiting member 33 and the winding rope shaft 32, and the rotation of the winding rope shaft 32 is stopped.

[0092] When the winding shaft 32 is connected with the electric drive 21, the reverse force applied by the first stop surface 3321 to the first abutting surface 3222 causes the working current of the control assembly 2 to increase, and when the working current of the control assembly 2 exceeds the rated value, the overload protection is triggered, and the control assembly 2 stops running, thereby stopping the rotation of the winding shaft 32.

[0093] Furthermore, the first stop surface 3321 and the first abutting surface 3222 can cooperate to trigger the overload protection of the control assembly 2, and ensure that the winding shaft 32 can stop rotating, so as to further ensure that when the curtain body 4 is paused in the middle of the descent, the winding shaft 32 will not continue to release the control rope 5, and further avoid the control rope 5 from being tangled due to excessive slack.

[0094] In one specific example, as shown in Figure 6 The top surface of the locking limiting member 33 is formed with a protrusion 332, the first stop surface 3321 is a vertical plane formed on the side surface of the protrusion 332, and the protrusion 332 and the first limiting surface 331 form an avoiding gap 337. During the rotation of the first abutting surface 3222 to the first stop surface 3321 driven by the winding shaft 32, the first abutting surface 3222 rotates to abut against the first stop surface 3321 through the avoiding gap 337, so as to avoid the locking limiting member 33 being pressed down by the winding shaft 32 during the rotation of the winding shaft 32, and ensure that the first stop surface 3321 can be located on the rotation path of the first abutting surface 3222 when switching to the locking state, and guarantee the limiting effect of the locking limiting member 33 on the winding shaft 32.

[0095] As an optional embodiment, in order to facilitate the switching of the locking limiting member 33 between the locking state and the unlocking state, the locking limiting member 33 and the shell 31 can be connected in a sliding connection or a rotating connection. The following arrangement modes can be used:

[0096] The first arrangement mode is shown in Figures 3 to 5 The shell 31 is formed with a guide portion, and the locking limiting member is connected with the shell 31 in a sliding connection through the guide portion. The guide portion extends along a third preset direction, and the third preset direction is along the direction of the bottom wall of the shell to the winding shaft. The reset member 34 is arranged on the side of the locking limiting member 33 away from the winding shaft 32.

[0097] Specifically, when the weight of the curtain body 4 acts on the locking limiting piece 33 through the control rope 5, the locking limiting piece 33 is pressed downward, and the locking limiting piece 33 slides downward to switch to the unlocking state without contacting the winding rope shaft 32, and the restoring piece 34 is compressed. When the control rope 5 is relaxed, the weight of the curtain body 4 cannot act on the locking limiting piece 33 through the control rope 5, the restoring piece 34 is not pressed and rebounds to drive the locking limiting piece 33 to move relative to the shell 31 along the extension direction of the guide portion, realizing sliding to the winding rope shaft, the first limiting surface 331 of the locking limiting piece 33 abuts against the winding rope shaft 32, switching to the locking state, and the first stop surface 3321 is lifted to the moving path of the first abutting surface 3222, so as to limit the rotation of the winding rope shaft 32 by the locking limiting piece 33.

[0098] As a specific example, the guide portion can be a lifting chute 334 formed in the side wall of the shell 31, and the side wall of the locking limiting piece 33 is formed with a lifting boss 333, both of which extend in the vertical direction. The locking limiting piece 33 and the side wall of the shell 31 are slidably connected by the sliding connection of the lifting boss 333 and the lifting chute 334.

[0099] Of course, the guide portion can also be a guide rail formed in the side wall of the shell 31, and the side wall of the locking limiting piece 33 is formed with a sliding groove, and the locking limiting piece 33 and the side wall of the shell 31 are slidably connected by the sliding cooperation of the guide rail and the sliding groove; the guide portion can also be directly slidably connected with the side wall surface of the locking limiting piece 33 to realize the guiding effect.

[0100] In addition, the guide portion can also be arranged at an angle with the bottom wall of the shell 31 to slide the locking limiting piece 33 to the winding rope shaft 32 at an angle; the guide portion can also be arranged horizontally to abut the locking limiting piece 33 horizontally against the winding rope shaft 32, at this time, it is necessary to ensure that the height of the locking limiting piece is consistent with the height of the winding rope shaft 32, and the first stop surface 3321 of the locking limiting piece can be moved to the rotation path of the first abutting surface 3222.

[0101] The second arrangement, the locking limiting piece 33 is formed with a rotating shaft (not shown in the figure), and the locking limiting piece 33 is rotatably connected with the side surface of the shell 31 through the rotating shaft, and the restoring piece 34 is sleeved on the rotating shaft. When the locking limiting piece 33 switches from the unlocking state to the locking state, the locking limiting piece 33 rotates towards the winding rope shaft 32.

[0102] Specifically, when the weight of the curtain body 4 acts on the locking limiting piece 33 through the control rope 5, the locking limiting piece 33 is pressed downward, and rotates away from the winding rope shaft 32 to switch to the unlocking state and not contact the winding rope shaft 32, while compressing the reset piece 34. When the control rope 5 is relaxed, the weight of the curtain body 4 cannot act on the locking limiting piece 33, and the reset piece 34 is not pressed and rebounds to drive the locking limiting piece 33 to rotate towards the winding rope shaft 32 to switch to the locking state, so that the first limiting surface 331 of the locking limiting piece 33 abuts against the winding rope shaft 32, and the first stop surface 3321 is moved to the moving path of the first abutting surface 3222, so as to limit the rotation of the winding rope shaft 32 by the locking limiting piece 33.

[0103] It should be noted that when the second arrangement is adopted, the shapes of the first limiting surface 331 and the first stop surface 3321 can be adjusted adaptively to adapt to the rotation path of the locking limiting piece 33.

[0104] In the embodiment, the first arrangement is preferably adopted between the locking limiting piece 33 and the side wall of the shell 31.

[0105] Specifically, as shown in Figure 6 the locking limiting piece 33 is formed with a first mounting groove 335 facing the bottom wall of the shell 31, the reset piece 34 is mounted in the first mounting groove 335, and one end of the reset piece 34 abuts against the top wall of the first mounting groove 335, and the other end of the reset piece 34 abuts against the bottom wall of the shell 31, so that in the unlocking state, the locking limiting piece 33 cooperates with the bottom wall of the shell 31 to compress the reset piece 34, and in the locking state, the reset piece 34 can provide the reset force for the locking limiting piece 33 to abut against the winding rope shaft 32.

[0106] More specifically, when the first arrangement is adopted, the reset piece 34 can be a torsional spring or a compression spring. When the reset piece 34 is a compression spring, the first mounting groove 335 is vertically arranged on the bottom wall of the locking limiting piece 33; when the reset piece 34 is a torsional spring, the first mounting groove 335 is formed on the side wall and the bottom wall of the locking limiting piece 33, and a convex shaft is formed in the first mounting groove 335, and the torsional spring is sleeved on the convex shaft.

[0107] When the second arrangement is adopted, the reset piece 34 is preferably a torsional spring, and at this time, the first mounting groove 335 is formed on the side wall where the rotation shaft of the locking limiting piece 33 is arranged and the bottom wall of the locking limiting piece 33, so as to sleeve the torsional spring on the rotation shaft of the locking limiting piece 33 and drive the locking limiting piece 33 to rotate by the elastic force of the torsional spring.

[0108] Of course, it should be noted that the reset member 34 can also be two magnets in some embodiments. One of the magnets is arranged at the bottom of the locking limiting member 33, and the other magnet is arranged at the bottom wall of the shell 31, and the two magnets are arranged in a repelling manner between the magnetic poles, so that when the self weight of the curtain body 4 cannot act on the locking limiting member 33, the magnetic repulsion force between the two magnets can be used to push the locking limiting member 33 to move towards the winding shaft 32. Alternatively, one of the magnets is arranged at the top of the locking limiting member 33, and the other magnet is arranged on the surface of the winding shaft 32, and the two magnets are arranged in an attracting manner between the magnetic poles, so that when the self weight of the curtain body 4 cannot act on the locking limiting member 33, the magnetic attraction force between the two magnets can be used to attract the locking limiting member 33 to the winding shaft 32.

[0109] In the embodiment, in the field of sunshade windows, the control rope 5 connected with the curtain body 4 includes but is not limited to a pull rope 51 for realizing the lifting of the curtain body 4, and a ladder rope 52 for adjusting the sunshade angle of the curtain body 4. In the locking winding device 3, the winding shaft 32 includes a winding shaft 321 and a page turning wheel 322, wherein the winding shaft 321 is used for winding the pull rope 51, and the page turning wheel 322 is used for winding the ladder rope 52. The control assembly 2 can sequentially connect the winding shaft 321 and the page turning wheel 322 by using the output shaft, drive the winding shaft 321 and the page turning wheel 322 to rotate, correspondingly drive the curtain body 4 to lift and adjust the sunshade angle of the curtain body 4.

[0110] As an optional embodiment, in order to ensure that when the control rope 5 is tensioned, the self weight of the curtain body 4 can act on the locking limiting member 33 through the control rope 5, as shown in Figure 4 、 Figure 5 and Figure 7 , the locking limiting member 33 is located below the page turning wheel 322; the side of the locking limiting member 33 facing the out rope hole is formed with a second mounting groove 336, the second mounting groove 336 is rotationally connected with a deflection wheel 35, and the deflection wheel 35 is located above the out rope hole; the control rope 5 passes into the second mounting groove 336, bypasses the deflection wheel 35, and is connected to the curtain body 4 from the out rope hole.

[0111] In the embodiment, the control rope 5 is preferably the pull rope 51. In the process of releasing the pull rope 51 by rotating the winding shaft 321, the pull rope 51 can convert the self weight of the curtain body 4 into pressure on the deflection wheel 35 above the out rope hole, and then use the deflection wheel 35 to act on the locking limiting member 33, so that the locking limiting member 33 can move away from the page turning wheel 322 to keep the unlocking state, or switch from the locking state to the unlocking state, facilitating the pull rope 51 to continue to release and lower the curtain body 4.

[0112] In addition, by integrating the locking limiting member 33 and the deflection wheel 35, the increase in the volume of the shell 31 after adding the locking limiting member 33 can also be avoided, so as to affect the space occupancy rate of the locking winding device 3 in the window frame 1.

[0113] In one of the embodiments, in order to facilitate the winding of the ladder rope 52 and the installation of the page turning wheel 322, as shown in Figure 3 、 Figure 6 、 Figure 7 、 Figure 10 and Figure 11 , the shell 31 is formed with an arc-shaped support 311, the page turning wheel 322 is rotationally arranged in the arc-shaped support 311, the shell 31 is formed with a placing slot 318 above the arc-shaped support 311, the page turning wheel 322 is adapted to be placed into the arc-shaped support 311 from above or the side of the placing slot 318, and then when arranging the ladder rope 52 and the page turning wheel 322, the ladder rope 52 can be first threaded upwards from the rope outlet hole and wound around the page turning wheel 322; then the page turning wheel 322 can be placed into the arc-shaped support 311 from above or the side of the placing slot 318 according to actual needs, so as to facilitate the installation of the page turning wheel 322 and improve the installation convenience of the page turning wheel 322 and the ladder rope 52.

[0114] Further, in order to ensure the installation stability of the page turning wheel 322 in the locking rope winder 3, the arc-shaped support 311 is arranged with a guide column 312 above, two guide columns 312 are slidingly connected with a gland 317, the gland 317 is located above the arc-shaped support 311, and the page turning wheel 322 is located between the gland 317 and the arc-shaped support 311, so as to limit the page turning wheel 322 in the shell 31 by cooperation of the gland 317 and the arc-shaped support 311, and ensure the installation stability of the page turning wheel 322.

[0115] In order to ensure the connection stability of the gland 317 and the shell 31, the shell 31 is formed with a protruding buckle, and the gland is formed with a buckle hole, so as to prevent the gland 317 from being loose from the shell 31 by using the buckle hole and the protruding buckle to be engaged when the gland 317 is slid from the guide column 312 to the arc-shaped support 311, and ensure the connection stability of the gland 317 and the shell 31.

[0116] As an optional embodiment, as shown in Figure 3 , the shell 31 comprises a first base 313 and a second base 314 which are detachably connected, so as to complete the position arrangement of the internal components of the locking rope winder 3 before the first base 313 and the second base 314 are spliced, and provide sufficient operation space for the installation and arrangement of the pull rope 51 and the ladder rope 52, thereby effectively improving the assembly efficiency of the internal components of the locking rope winder 3.

[0117] Specifically, as shown in Figure 3 and Figure 8 , the first base 313 is formed with a first groove 315, and the second base 314 is formed with a second groove 316, so as to facilitate the installation of the pull rope 51 and the ladder rope 52.As shown, the first base 313 is formed with a first matching side 315, and the second base 314 is formed with a second matching side 316. When the first base 313 and the second base 314 are connected to form the overall housing 31, a spacing is formed between the first matching side 315 and the second matching side 316, and the spacing is equal to the width of the locking and limiting piece 33. When the locking and limiting piece 33 moves inside the housing 31, the first matching side 315 and the second matching side 316 can provide guiding and limiting functions for the locking and limiting piece 33, so as to ensure the moving direction of the locking and limiting piece 33 in the first base 313 and the second base 314, avoid deviation, ensure the position accuracy of the locking and limiting piece 33 when moving towards the rope winding shaft 32, and further improve the locking and limiting effect of the locking and limiting piece 33 on the rope winding shaft 32.

[0118] In addition, it should be noted that, in order to reduce the friction between the locking and limiting piece 33 and the first matching side 315 and the second matching side 316, the side of the locking and limiting piece 33, the first matching side 315 and the second matching side 316 can be polished or plated.

[0119] In order to facilitate detachable connection between the first base 313 and the second base 314, as shown in Figure 10 and Figure 11 As shown, the side of the first base is formed with a first positioning part 3132, and the side of the second base is formed with a second positioning part 3142. The first positioning part 3132 is positioned and matched with the second positioning part 3142. The outer edge of the first base is formed with a plurality of first connecting parts 3131, and the outer edge of the second base is formed with a plurality of second connecting parts 3141. The first connecting parts 3131 are detachably connected with the second connecting parts 3141.

[0120] Further, when assembling the housing 31, the internal components of the rope locking device 3 can be arranged in the corresponding positions first, and then the first positioning part 3132 and the second positioning part 3142 are positioned and matched to provide assembly positioning points for the first base and the second base. Then, the first base and the second base are spliced by the first connecting parts 3131 and the second connecting parts 3141 to complete the assembly of the rope locking device. The whole assembly process is simple, and the positioning and matching between the first positioning part 3132 and the second positioning part 3142 can effectively ensure the assembly accuracy when splicing the first base and the second base. Further, while ensuring the stable winding of the curtain control rope by the rope locking device, the assembly efficiency of the internal components of the rope locking device is improved, and the requirements of batch production are met.

[0121] Specifically, the first connecting portion 3131 can be a plurality of card slots formed on the outer edge of the first base 313, and the second connecting portion 3141 can be a plurality of clips formed on the outer edge of the second base 314, so as to buckle and connect the first base 313 and the second base 314; at the same time, connecting holes are formed on the top of the first base 313 and the second base 314, and the connecting holes can be passed through by fasteners such as bolts or studs, so as to utilize fasteners such as bolts or studs to assist in the connection, thereby preventing the first base 313 and the second base 314 from being dislocated due to expansion due to force.

[0122] The first positioning portion 3132 can be a positioning stud on the side of the first base 313, and the second positioning portion 3142 can be a positioning hole on the side of the second base 314. The positioning stud and the positioning hole can be positioned and matched. When splicing the first base 313 and the second base 314, the positioning stud can be inserted into the positioning hole to provide a positioning point for the first base 313 and the second base 314, thereby ensuring the splicing accuracy of the first base 313 and the second base 314.

[0123] In this embodiment, in order to ensure that the pull rope 51 is evenly wound on the rope winding shaft 32, as shown in FIG. Figure 4 and Figure 5 As shown, the end of the rope winding shaft 32 away from the locking limiter 33 is a rope fixing end 3211. The rope winding shaft 32 is rotatably connected to a rotating slider 36, which is threadedly connected to the inner wall of the housing 31. The housing 31 is provided with a translation slider 37, which is connected to the rotating slider 36. The rotating slider 36 is used to drive the translation slider 37 to move along the length of the rope winding shaft 32. A guide wheel 38 is rotatably provided inside the translation slider 37.

[0124] With the above arrangement, after the draw cord 51 is secured to the draw cord fixed end 3211, the draw cord 51 can be passed through the interior of the translation slider 37, around the guide wheel 38, extended to the steering wheel 35, and passed through the rope outlet hole to connect the draw cord 51 to the curtain body 4. The control assembly 2 then drives the reel 321 to rotate, correspondingly winding the draw cord 51; at the same time, the rotating slider 36 converts the rotation of the reel 321 into a translational motion along the length of the reel 321, and drives the translation slider 37 to slide along the length of the rope winding shaft 32, thereby changing the winding point position of the draw cord 51 relative to the reel 321, ensuring uniform winding and stable rope output of the draw cord 51 on the reel 321.

[0125] And in the related winding device, the winding shaft 321 can continue to be driven by the control assembly 2 to rotate after the curtain body 4 is fully retracted, which causes the control rope 5 to be over-stretched and broken. In order to avoid the control rope 5 from being broken, the control rope 5 is wound on the winding shaft with a preset winding length, which is less than or equal to the length of the fully opened curtain body 4, so as to limit the lifting stroke or the descending stroke of the curtain body 4 driven by the control rope 5. When the control rope 5 moves to the limit position, the winding or releasing action of the control rope 5 reaches the limit and cannot continue to move, thereby avoiding the control rope 5 from being broken due to over-stretching.

[0126] Specifically, in order to limit the preset winding length of the winding shaft 321 to the control rope 5, as shown in Figure 4 、 Figure 5 and Figure 9 , the winding shaft 32 is provided with a stroke limiting piece 39, and the stroke limiting piece 39 is located on the moving path of the translation slider 37. The control rope 5 is wound between the stroke limiting piece 39 and the fixed end 3211 of the control rope 5.

[0127] When the winding shaft 321 winds the control rope 5, the rotation slider 36 drives the translation slider 37 to move towards the stroke limiting piece 39. The side of the stroke limiting piece 39 away from the locking limiting piece 33 is adapted to abut against the translation slider 37, so as to limit the sliding stroke of the translation slider 37 by using the stroke limiting piece 39, correspondingly limit the winding point position of the control rope 5 on the winding shaft 321, thereby limiting the effective winding length of the control rope 5, limiting the winding stroke of the control rope 5 on the winding shaft 321, effectively preventing the control rope 5 from being over-stretched and broken when the curtain body 4 is retracted, and ensuring the use performance of the sunshade window.

[0128] Specifically, when the curtain body 4 is retracted, the winding shaft 32 rotates in a second preset direction, which is counterclockwise, to complete the retraction action of the control rope 5.

[0129] In order to further improve the limiting effect of the stroke limiting piece 39 on the translation slider 37, as shown in Figure 9 , the side of the stroke limiting piece 39 away from the locking limiting piece 33 is provided with a limiting boss 391, and the limiting boss 391 forms a second abutting surface 3911. The direction of the second abutting surface 3911 is the same as the second preset direction. The side of the translation slider 37 facing the stroke limiting piece 39 forms a limiting slot 371, and the limiting slot 371 forms a second stop surface 3711. The direction of the second stop surface 3711 is opposite to the second preset direction. When the translation slider 37 abuts against the stroke limiting piece 39, the second stop surface 3711 is located on the rotating path of the second abutting surface 3911.

[0130] It can be understood that when the translation slider 37 abuts against the stroke limiting piece 39, the stroke limiting piece 39 can be rotated by the inertial rotation of the winding shaft 32, and the second abutting surface 3911 is driven to continue to rotate. Since the second stop surface 3711 is located on the rotation path of the second abutting surface 3911, and the direction of the second stop surface 3711 is opposite to the rotation direction of the second abutting surface 3911, the second stop surface 3711 can abut against the second abutting surface 3911 when the second stop surface 3711 rotates, and a relative force is formed between the second abutting surface 3911 and the second stop surface 3711. Under the influence of the interaction force, the working current of the control assembly 2 increases, and an overload protection is triggered, so that the control assembly 2 stops running, and the rotation of the winding shaft 32 is stopped, and the winding action of the pull rope 51 is stopped, and the limiting effect of the stroke limiting piece 39 on the translation slider 37 is further improved.

[0131] In one specific example, as shown in Figure 9 The stroke limiting piece 39 is a limiting ring formed on the outer circumferential surface of the winding shaft 321, and the limiting ring is fixed to the winding shaft 321 by bolts or studs, and the outer diameter of the limiting ring is smaller than the inner diameter of the shell 31, so as to avoid affecting the rotation of the winding shaft 321 and the stroke limiting piece 39. The arc of the limiting notch 371 is consistent with the arc of the outer wall surface of the limiting ring, so as to ensure that the second stop surface 3711 is located on the rotation path of the second abutting surface 3911, and ensure that when the second abutting surface 3911 is rotated to the second stop surface 3711 of the limiting notch 371 by the limiting ring, the second abutting surface 3911 can be rotated to abut against the second stop surface 3711 through the limiting notch 371, so that the winding shaft 32 stops rotating.

[0132] The above describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.

Claims

1. A sunshade window, characterized in that: The invention comprises a window frame, a curtain body, a rope reel assembly and a control assembly, wherein the control assembly drives the curtain body to rise and fall, the curtain body is connected to a plurality of control ropes, and the rope reel assembly includes a locking rope reel, and at least one of the control ropes is connected to the locking rope reel; The locking rope reel comprises a housing and a rope reel shaft for winding or releasing the control rope, a locking limiter is movably provided inside the housing, the locking limiter is located below the rope reel shaft, and a reset member is provided between the locking limiter and the housing; the control rope passes around the locking limiter and is connected to the curtain body through the rope outlet hole of the housing; The locking limiter is adapted to switch between a locked state and an unlocked state, wherein in the locked state, the control rope is loosened, and the reset member presses the locking limiter against the rope winding shaft, so that the locking limiter restricts the rope winding shaft from rotating; in the unlocked state, the control rope is tightened, and the control rope pulls the locking limiter away from the rope winding shaft; When the curtain body is lowered, the rope winding shaft rotates along a first preset direction; the locking limiter is formed with a first stop surface, and the direction of the first stop surface is opposite to the first preset direction; the outer peripheral surface of the rope winding shaft is formed with a first pressing surface, and the direction of the first pressing surface is the same as the first preset direction; and when the locking limiter is switched to the locked state, the first stop surface is located on the rotation path of the first pressing surface; the first stop surface and the first pressing surface abut and cooperate, triggering the overload protection of the control component; The end of the rope winding shaft away from the locking limiter is a fixed end of the pull rope, and the locking limiter is formed with a second installation groove on the side facing the rope outlet hole. The second installation groove is rotatably connected to a steering wheel, and the steering wheel is located above the rope outlet hole; the control rope passes through the second installation groove, bypasses the steering wheel, and is connected to the curtain body from the rope outlet hole.

2. The sunshade window according to claim 1, characterized in that: The control assembly includes an electric drive and a stroke controller, and the electric drive is in transmission connection with the rope reel assembly; The stroke controller is electrically connected to the electric drive component, and the stroke controller is used to limit the rising stroke and the falling stroke of the curtain body.

3. The sunshade window according to claim 1, characterized in that: The control assembly includes an electric drive and an overload protection controller, and the electric drive is in transmission connection with the rope reel assembly; The overload protection controller is electrically connected to the electric drive component, and the overload protection controller is used to stop the lifting of the curtain body.

4. The sunshade window according to claim 1, characterized in that: The window frame is hollow inside; the control assembly includes a manual drive member and a transmission member, and the manual drive member is connected to the rope reel assembly through the transmission member.

5. The sunshade window according to claim 1, characterized in that: The curtain body is arranged outside the window frame, the window frame is provided with the rope outlet hole, the control rope passes through the window frame from the rope outlet hole and is connected with the curtain body.

6. The sunshade window according to any one of claims 1 to 5, characterized in that: The rope reel assembly includes at least one group of locking rope reels and at least one group of driven rope reels, the locking rope reels are transmission-connected to the driven rope reels, and each group of driven rope reels is connected to one of the control ropes.

7. The sunshade window according to claim 1, characterized in that: In the locked state, the locking limit member is in contact with the rope winding shaft through a limiting surface, and the reset member is used to apply a force in a predetermined direction to the locking limit member, and the predetermined direction is from the locking limit member toward the rope winding shaft, so that the rope winding shaft is frictionally clamped by using the locking limit member.

8. The sunshade window according to claim 7, characterized in that: The limiting surface includes a first limiting surface provided on the locking limiting member and a second limiting surface provided on the rope winding shaft. The locking limiting member forms the first limiting surface toward the wall surface of the rope winding shaft. In the locked state, the first limiting surface is pressed against the second limiting surface.

9. The sunshade window according to claim 7, characterized in that: The locking limit member is formed with a first mounting groove, the first mounting groove faces the bottom wall of the shell, the reset member is installed in the first mounting groove, and one end of the reset member abuts against the top wall of the first mounting groove, and the other end of the reset member abuts against the bottom wall of the shell.

10. The sunshade window according to any one of claims 1 to 5, characterized in that: The locking and limiting member is slidably connected to the housing, or the locking and limiting member is rotatably connected to the housing.

11. The sunshade window according to claim 10, characterized in that: The inner wall of the housing is formed with a guide portion, the locking limit member is slidably connected to the housing via the guide portion, the guide portion extends along a third preset direction, and the third preset direction is along the bottom wall of the housing toward the rope winding shaft; the reset member is arranged on a side of the locking limit member away from the rope winding shaft; Alternatively, the locking limit member is formed with a rotating shaft, the locking limit member is rotatably connected to the side of the shell through the rotating shaft, the reset member is sleeved on the rotating shaft, and when switching from the unlocked state to the locked state, the locking limit member rotates toward the rope winding shaft.

12. The sunshade window according to claim 1, characterized in that: The rope winding shaft includes a winding shaft and a page turning wheel, and the locking limiter is located below the page turning wheel.

13. The sunshade window according to claim 12, characterized in that: The shell is formed with an arc support, and the page-turning wheel is rotatably arranged on the arc support; the shell is formed with a placement slot, and the placement slot is located above the arc support. The page-turning wheel is suitable for being placed into the arc support from above or from the side of the placement slot to facilitate the installation of the page-turning wheel.

14. The sunshade window according to claim 13, characterized in that: A guide column is arranged above the arc support, and the guide column is slidably connected to a pressure cover. The pressure cover is located above the arc support, and the page turning wheel is located between the pressure cover and the arc support.

15. The sunshade window according to claim 1, characterized in that: The rope winding shaft is rotatably connected to a rotating slider, and the rotating slider is threadedly transmitted to the inner wall of the shell. The shell is provided with a translation slider, and the translation slider is connected to the rotating slider; the rotating slider is used to drive the translation slider to move along the length direction of the rope winding shaft; a guide wheel is provided inside the translation slider.

16. The sunshade window according to claim 15, characterized in that: The control rope is formed with a preset winding length on the rope winding shaft, and the preset winding length is less than or equal to the length of the curtain body when it is fully opened, so as to limit the upward stroke or downward stroke of the curtain body driven by the control rope.

17. The sunshade window according to claim 16, characterized in that: The rope winding shaft is provided with a stroke limiter, and the stroke limiter is located on the moving path of the translation slider, the control rope is wound between the stroke limiter and the fixed end of the pull rope, and the side of the stroke limiter facing away from the locking limiter is suitable for abutting against the translation slider.

18. The sunshade window according to claim 17, characterized in that: When the curtain body is folded, the rope winding shaft rotates along a second preset direction; A limiting boss is provided on a side of the travel limiting member facing away from the locking limiting member, and the limiting boss is formed with a second pressing surface, and the direction of the second pressing surface is the same as the second preset direction; A limiting notch is formed on the side of the translation slider facing the stroke limiting member, and a second stop surface is formed on the limiting notch, and the direction of the second stop surface is opposite to the second preset direction; When the translation slider abuts against the travel limiter, the second stop surface is located on the rotation path of the second abutting surface.

19. The sunshade window according to any one of claims 1 to 5, characterized in that: The shell includes a first base and a second base that are detachably connected, the first base forms a first mating side surface, the second base forms a second mating side surface, and a distance is formed between the first mating side surface and the second mating side surface, and the distance is equal to the width of the locking limit member.

20. The sunshade window according to claim 19, characterized in that: A first positioning portion is formed on a side surface of the first base, and a second positioning portion is formed on a side surface of the second base, wherein the first positioning portion is positioned and matched with the second positioning portion; A plurality of first connection parts are formed on the outer edge of the first base, and a plurality of second connection parts are formed on the outer edge of the second base. The first connection parts are detachably connected to the second connection parts.

Images