Sun-shading window

Abstract

The invention relates to the technical field of curtains, in particular to a sunshade window. The sunshade window comprises a window frame, a curtain body, a rope winder assembly and a control assembly, the control assembly drives the curtain body to ascend and descend, the curtain body is connected with a plurality of control ropes, and the rope winder assembly comprises a locking rope winder. The locking rope winder comprises a shell and a rope winding shaft used for winding or releasing a control rope. A locking limiting piece is movably arranged in the shell and located below the rope winding shaft, and a reset piece is arranged between the locking limiting piece and the shell. And the control rope bypasses the locking limiting piece and is connected with the curtain body through the rope outlet hole of the shell. The locking limiting piece is suitable for being switched between a locking state and an unlocking state, in the locking state, the locking limiting piece limits rotation of the rope winding shaft, and in the unlocking state, the control rope pulls the locking limiting piece to be separated from the rope winding shaft. By the adoption of the sunshade window, the situation that the curtain body is stuck due to the fact that the curtain body descends temporarily due to external factors can be effectively avoided, the safety performance of the sunshade window in use is effectively improved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of curtains, in particular to a sunshade window. Background Art

[0002] Venetian blinds, a common window decoration and sunshade device, are widely used due to their diverse functions and neat and beautiful appearance. Depending on the drive method, blinds are primarily operated by a cord winder, which winds and releases the pull cord and ladder cord, correspondingly extending and retracting the blinds, and adjusting the blinds' tilt angle for dimming.

[0003] However, if the blinds of the related technology stop descending due to misoperation (such as human error in supporting the bottom of the blinds) or other external factors during the descending process, the internal rope winder may continue to rotate and release the rope. At this time, the rope is likely to become more slack due to the cessation of movement of the bottom of the rope, resulting in contact between the front and rear ends of the rope, causing entanglement, confusion, and other problems, causing the blinds to get stuck and damage the blinds, affecting user use. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides a sunshade window, which can effectively prevent the curtain from getting stuck due to the suspension of the curtain's descent due to external factors, effectively improve the safety performance of the sunshade window when in use, and enhance the user experience.

[0005] In order to solve the above technical problems, the present invention provides a sunshade window, comprising a window frame, a curtain body, a cord 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 cords, the cord reel assembly includes a locking cord reel, and at least one of the control cords is connected to the locking cord reel assembly; 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 suitable for switching between a locked state and an unlocked state, wherein, in the locked state, the control rope is relaxed, and the reset member presses the locking limiter against the rope winding shaft, so that the locking limiter restricts the rotation of the rope winding shaft; in the unlocked state, the control rope is tensioned, and the control rope pulls the locking limiter to disengage from the rope winding shaft.

[0006] As an improvement to the above solution, the control assembly includes an electric drive member, a control board, and a stroke controller, wherein the electric drive member is in transmission connection with the rope reel assembly via the rotating shaft, and the electric drive member is connected to a power source via the control board; The stroke controller is electrically connected to the electric driving member, and the stroke controller is used to limit the ascending stroke and descending stroke of the curtain body.

[0007] As an improvement of the above solution, the control assembly includes an electric driving member and an overload protection controller, and the electric driving member is in transmission connection with the rope winding assembly; The overload protection controller is electrically connected to the electric driving member, and the overload protection controller is used to stop the lifting of the curtain body.

[0008] As an improvement of the above solution, the inside of the window frame is hollow; the control assembly includes a manual driving member and a transmission member, and the manual driving member is in transmission connection with the rope winding assembly through the transmission member.

[0009] As an improvement of the above solution, the curtain body is arranged outside the window frame, the window frame is provided with the rope outlet hole, and the control rope passes through the rope outlet hole out of the window frame and is connected to the curtain body.

[0010] As an improvement of the above solution, the rope winding assembly includes at least one set of the locking rope winder and at least one set of driven rope winders, the locking rope winder is in transmission connection with the driven rope winders, and each set of driven rope winders is connected to one of the control ropes.

[0011] As an improvement of the above solution, in the locked state, the locking limiting member and the rope winding shaft are in contact through a limiting surface, and the reset member is used to apply a force in a predetermined direction to the locking limiting member, and the predetermined direction is from the locking limiting member towards the rope winding shaft, so as to use the locking limiting member to frictionally hold the rope winding shaft tightly.

[0012] As an improvement of the above solution, 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 wall surface of the locking limiting member facing the rope winding shaft forms the first limiting surface, and in the locked state, the first limiting surface abuts against the second limiting surface.

[0013] As an improvement of the above solution, in the locked state, a mechanical limiting stop is formed between the locking limiting member and the rope winding shaft.

[0014] As an improvement of the above solution, when the curtain body descends, the rope winding shaft rotates in a first preset direction; The locking limiting member is formed with a first stop surface, and the orientation 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 abutting surface, and the orientation of the first abutting surface is the same as the first preset direction; When the locking limiter is switched to the locking state, the first stop surface is located on the rotation path of the first abutting surface.

[0015] As an improvement of the above-mentioned solution, 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.

[0016] As an improvement to the above solution, the locking and limiting member is slidably connected to the shell, or the locking and limiting member is rotationally connected to the shell.

[0017] As an improvement to the above solution, a guide portion is formed on the inner wall of the housing, 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 provided on a side of the locking limit member facing 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.

[0018] As an improvement to the above solution, the rope winding shaft includes a winding shaft and a page turning wheel, and the locking limiter is located below the page turning wheel; A second mounting groove is formed on a side of the locking limiter facing the rope outlet hole, and a steering wheel is rotatably connected to the second mounting groove, and the steering wheel is located above the rope outlet hole; The control rope passes through the second installation groove, passes around the steering wheel, and is connected to the curtain body through the rope outlet hole.

[0019] As an improvement to the above-mentioned solution, 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, and 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.

[0020] As an improvement to the above solution, 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.

[0021] As an improvement of the above-mentioned scheme, the end of the rope winding shaft away from the locking limit member is the fixed end of the pull rope, and the rope winding shaft is rotatably connected to a rotating slider, and the rotating slider is threadedly transmitted to the inner wall surface of the shell, and 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.

[0022] As an improvement to the above solution, the control rope has a preset winding length on the rope winding shaft, and the preset winding length is less than or equal to the length of the fully opened curtain body to limit the upward or downward stroke of the curtain body driven by the control rope.

[0023] As an improvement of the above-mentioned solution, 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.

[0024] As an improvement to the above solution, 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 a second pressing surface is formed on the limiting boss, 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.

[0025] As an improvement of the above-mentioned solution, 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.

[0026] As an improvement to the above solution, 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, and 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.

[0027] The implementation of the present invention has the following beneficial effects: The sunshade window of this embodiment uses a locking and limiting member to restrict the rotation of the rope winding shaft in the locked state and disengage from the rope winding shaft in the unlocked state, enabling the release state of the control rope to be adjusted correspondingly according to the tightness of the control rope.

[0028] Specifically, initially, the curtain body is fully retracted, and the rope winding shaft winds the control rope. The cooperation of the self-weight of the rope winding shaft and the curtain body is used to keep the control rope taut. At this time, the self-weight of the curtain body can act on the locking and limiting member through the control rope, and the locking and limiting member is in the unlocked state, and the rope winding shaft can rotate. When it is necessary to unfold the curtain body, the rope winding shaft can be driven to rotate to release the control rope, so as to complete the descending movement of the curtain body under the cooperation of the self-weight of the curtain body and the control rope.

[0029] If during the descending process of the curtain body, due to external factors such as manually supporting the bottom of the curtain body, problems occur in the descending state of the curtain sheet or the descending is paused. At this time, the self-weight of the curtain body no longer acts on the control rope, and the control rope will start to slack under the drive of the rotation of the rope winding shaft. Furthermore, under the restoring force of the restoring member, the restoring member pushes the locking and limiting member towards the rope winding shaft and abuts tightly against the rope winding shaft to switch the locking and limiting member from the unlocked state to the locked state, realizing the restriction of the rotation of the rope winding shaft, so that the rope winding shaft cannot continue to release the control rope, avoiding the continuous release of the control rope when the curtain sheet pauses descending and resulting in an increase in the slack of the control rope.

[0030] After the external factors are removed and the curtain body can descend again, the self-weight of the curtain body can act on the control rope again. At this time, the rope winding shaft can be driven to reverse a certain angle to utilize the new cooperation of the self-weight of the rope winding shaft and the curtain body to make the control rope taut again, and use the control rope to act on the locking and limiting member with the self-weight of the curtain body again to drive the locking and limiting member to move away from the rope winding shaft, so that the locking and limiting member disengages from the rope winding shaft and switches from the locked state to the unlocked state, so that the rope winding shaft can rotate to continue releasing the control rope and complete the descending movement of the curtain body.

[0031] Furthermore, by using the cooperation among the locking and limiting member, the restoring member, and the control rope, the locking and limiting member is switched between the unlocked state and the locked state, which can stop releasing the control rope and maintain the tension of the control rope when the control rope starts to slack; while when the control rope is taut, the control rope can be released. Therefore, for the sunshade window of this embodiment, when the curtain body stops midway due to external factors, the control rope can maintain a certain tightness, avoiding the problem of the control rope becoming entangled and disordered due to excessive slack, preventing the curtain body from getting stuck, effectively improving the safety performance during the use of the sunshade window, and enhancing the user experience. Description of the Drawings

[0032] Figure 1 is a schematic structural diagram of the sunshade window in the first embodiment of the present invention; Figure 2 is a schematic structural diagram of the locking rope winder in the first embodiment of the present invention, in which the first base and the gland are not shown; Figure 3 is an exploded structural schematic diagram of the locking retractor in the first embodiment of the present invention; Figure 4 is one of the relative position diagrams of the rope winding shaft and the locking limiting member in the first embodiment of the present invention, wherein the locking limiting member is in an unlocked state; Figure 5 is the second relative position diagram of the rope winding shaft and the locking limiting member in the first embodiment of the present invention, wherein the locking limiting member is in a locked state; Figure 6 is the first relative position diagram of the page turning wheel and the locking limiting member in the first embodiment of the present invention, wherein the locking limiting member is in a locked state; Figure 7 is the second relative position diagram of the page turning wheel and the locking limiting member in the first embodiment of the present invention, wherein the locking limiting member is in an unlocked state; Figure 8 is the relative position diagram of the locking limiting member and the first base and the second base in the first embodiment of the present invention; Figure 9 is the relative position schematic diagram when the stroke limiting member abuts against the translation slider in the first embodiment of the present invention; Figure 10 is the three-dimensional structural schematic diagram of the first base in the first embodiment of the present invention; Figure 11 is the three-dimensional structural schematic diagram of the second base in the first embodiment of the present invention; Figure 12 is the front view structural schematic diagram of the electric sunshade window in the second embodiment of the present invention; Figure 13 is the front view structural schematic diagram of the manual hollow sunshade window in the third embodiment of the present invention; Figure 14 is the front view structural schematic diagram of the external electric sunshade curtain in the fourth embodiment of the present invention; Figure 15 is the front view structural schematic diagram of the external manual sunshade curtain in the fourth embodiment of the present invention. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0034] In the embodiments of the present invention, as Figure 1As shown, the sunshade window includes a window frame 1, a curtain body 4, a rope winding device assembly, and a control assembly 2. The control assembly 2 drives the curtain body 4 to move up and down. The curtain body 4 is connected with a plurality of control ropes 5. The rope winding device assembly includes a locking rope winder 3, and at least one control rope 5 is connected to the locking rope winder 3.

[0035] As Figure 2 and Figure 3 shown, the locking rope winder 3 includes a housing 31 and a rope winding shaft 32 for winding or releasing the control rope 5. A locking limiting member 33 is movably arranged inside the housing 31. The locking limiting member 33 is located below the rope winding shaft 32. A reset member 34 is arranged between the locking limiting member 33 and the housing 31. The control rope 5 bypasses the locking limiting member 33 and is connected to the curtain body 4 through the rope outlet hole of the housing 31.

[0036] As Figures 4 to 7 shown, the locking limiting member 33 is adapted to switch between a locking state and an unlocking state. Among them, in the locking state, the control rope 5 is slack, and the reset member 34 presses the locking limiting member 33 against the rope winding shaft 32, so that the locking limiting member 33 restricts the rotation of the rope winding shaft 32. In the unlocking state, the control rope 5 is tensioned, and the control rope 5 pulls the locking limiting member 33 away from the rope winding shaft 32.

[0037] For the sunshade window of this embodiment, when the locking limiting member 33 restricts the rotation of the rope winding shaft 32 in the locking state and disengages from the rope winding shaft 32 in the unlocking state, it can realize the corresponding adjustment of the release state of the control rope 5 according to the tightness of the control rope 5.

[0038] Specifically, initially, the curtain body 4 is completely retracted, and the rope winding shaft 32 winds the control rope 5. The self-weight of the rope winding shaft 32 and the curtain body 4 are used in cooperation to keep the control rope 5 tensioned. At this time, the self-weight of the curtain body 4 can act on the locking limiting member 33 through the control rope 5. The locking limiting member 33 is in the unlocking state, and the rope winding shaft 32 can rotate, that is, the relative position between the locking limiting member 33 and the rope winding shaft 32 is in the Figure 4 state shown. When it is necessary to unfold the curtain body 4, the rope winding shaft 32 can be driven to rotate to release the control rope 5, so as to complete the descending movement of the curtain body 4 under the cooperation of the self-weight of the curtain body 4 and the control rope 5.

[0039] If problems occur in the descending state of the curtain body 4 (such as the curtain body 4 tilting) or the descending stops during the descending process of the curtain body 4 due to external factors such as manually supporting 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 will start to slack under the drive of the rotation of the rope winding shaft 32. Furthermore, under the reset action of the reset member 34, the reset member 34 pushes the locking limiting member 33 to move towards the rope winding shaft 32 and presses against the rope winding shaft 32, so as to switch the locking limiting member 33 from the unlocking state to the locking state, that is, the relative position between the locking limiting member 33 and the rope winding shaft 32 switches from the Figure 4 state shown Figure 5In the state shown, the rotation of the rope winding shaft 32 is restricted, so that the rope winding shaft 32 cannot continue to release the control rope 5, thereby preventing the control rope 5 from being continuously released and increasing the slack of the control rope 5 when the curtain sheet stops descending.

[0040] The locking member 33 is moved away from the rope reel 32 and the locking member 33 is released. Figure 5 The status shown switches Figure 4 The state shown is such that the rope winding shaft 32 rotates and continues to release the control rope 5 to complete the lowering action of the curtain body 4.

[0041] The locking stopper 33 then switches between an unlocked and locked state by cooperating with the reset member 34 and the control cord 5. When the control cord 5 begins to loosen, the release of the control cord 5 is stopped, maintaining its tension. When the control cord 5 becomes taut, the control cord 5 is released. Therefore, even if the sunshade of this embodiment causes the curtain body 4 to become suspended mid-flight due to external factors, the control cord 5 can maintain a certain degree of tension, preventing the control cord 5 from becoming tangled due to excessive looseness and preventing the curtain body 4 from becoming stuck. This effectively improves the safety of the sunshade and enhances the user experience.

[0042] In addition, it should be noted that when the rope winding shaft 32 rewinds the control rope 5 and retracts the curtain body 4 upward, the control rope 5 is in a tensioned state. The control rope 5 can continuously act on the locking limit member 33 with the weight of the curtain body 4, ensuring that the locking limit member 33 is always in an unlocked state during the entire rising process, and will not press against the rope winding shaft 32 to limit the rotation of the rope winding shaft 32, thereby preventing the locking limit member 33 from affecting the recovery of the curtain body 4.

[0043] In the first specific embodiment, Figure 12 As shown, the sunshade can be an electric sunshade. In this case, the control assembly 2 includes an electric drive 21 and a travel controller 24. The electric drive 21 is drivingly connected to the rope reel assembly. Specifically, the rotating shaft 23 of the electric drive 21 is rotatably connected to the rope reel shaft 32 of the rope reel assembly. The electric drive 21 drives the rope reel assembly to rotate, correspondingly completing the action of winding or releasing the control rope 5 on the rope reel shaft 32. The electric drive 21 is preferably a drive motor.

[0044] The stroke controller 24 is electrically connected to the electric drive 21 . The stroke controller 24 is used to limit the rising and falling strokes of the curtain body 4 to ensure that the curtain body 4 can stop at a specified position (or 1 / 2 the height of the window frame 1 , or the top of the window frame 1 , or the bottom of the window frame 1 ).

[0045] Specifically, the travel controller 24 can be a travel switch, which can be placed on the lifting path of the curtain body 4 so that the travel switch can be triggered according to the rising state or the falling state of the curtain body 4, and a signal is sent to the control board 22 to stop the operation of the electric drive 21, and correspondingly stop the rotation of the rope winding shaft 32 to stop the rising or falling of the curtain body 4.

[0046] In addition, the stroke controller 24 can also be a position sensor, which can be placed at the position of the upper stroke and / or the lower stroke of the curtain body 4, so that when the curtain body 4 moves to the upper stroke and / or lower stroke, the corresponding movement state can be detected by the position sensor, thereby controlling the electric drive 21 to stop running, stop the rope shaft, and stop the curtain body 4 from rising or falling.

[0047] In a second specific embodiment, the control assembly 2 includes an electric drive 21 and an overload protection controller (not shown in the figure). The overload protection controller is electrically connected to the electric drive 21, and the electric drive 21 is transmission-connected to the rope reel assembly. The overload protection controller can detect changes in the current passing through the electric drive 21. When the current exceeds a predetermined value, it automatically cuts off the power supply and the circuit between the electric drive 21 to stop the electric drive 21, thereby stopping the raising and lowering of the curtain body 4.

[0048] In a third specific embodiment, Figure 13 As shown, the sunshade is a manual hollow sunshade. The window frame 1 is hollow inside, and the control assembly 2 includes a manual drive member 25 and a transmission member. The manual drive member 25 is connected to the cord reel assembly via the transmission member. During use, the user can raise or lower the manual drive member 25, which rotates the cord reel shaft 32 to wind or release the control cord 5.

[0049] As an optional embodiment, the manual drive component 25 is an external magnetic group (such as a magnet or a shell provided with a magnet) arranged on the outer wall of the window frame, and an internal magnetic group is provided on the inner wall of the window frame as a transmission component (such as a magnet or a shell provided with a magnet). The external magnetic group is magnetically attracted to the internal magnetic group, and the internal magnetic group is transmission-connected to the rope winding shaft 32. When the user rotates the external magnetic group, the change in the magnetic field of the external magnetic group can drive the internal magnetic group to rotate, and drive the rope winding shaft 32 to rotate, thereby realizing the transmission of torque and motion.

[0050] Of course, the manual driving member 25 is not limited to the external magnetic group, and can also be a pull bead or other curtain rope.

[0051] In the fourth specific embodiment, Figure 14 and Figure 15 As shown, the sunshade window includes 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 through the rope outlet hole of the window frame 1 and is connected to the curtain body 4.

[0052] Wherein, the external sunshade curtain can also be selectively arranged with an electric driving member 21 or a manual driving member 25, and the related structure will not be elaborated here.

[0053] Next, the specific arrangement of the locking and limiting member in the first specific embodiment will be described. However, it should be noted that the following arrangement method is also applicable to the other three specific embodiments, and it can also avoid the problem of the control rope being too loose and getting entangled.

[0054] It should be noted that in the sunshade window, multiple rope winding devices are usually provided to keep the curtain body rising or falling stably. Some of the rope winding devices play an auxiliary role to ensure the horizontal lifting and lowering of the curtain body. In its normal state, the control rope can be loose or tight. To prevent the auxiliary rope winding device from locking the descending movement of the curtain body when the rope is loose, as Figure 1 、 Figures 12 to 14 shown, the rope winding device assembly includes at least one set of locking rope winding devices 3 and at least one set of driven rope winding devices. The locking rope winding devices are rotationally connected to the driven rope winding devices, and each set of driven rope winding devices is connected to one of the control ropes. By arranging a locking and limiting member 33 in the locking rope winding device 3 and not arranging a locking and limiting member 33 in the driven rope winding device, when the curtain body 4 is tilted or pauses to descend, the locking and limiting member 33 in the locking rope winding device 3 can be switched to the locking state to stop the rope winding shaft 32, and the rotation of other driven rope winding devices can be stopped synchronously to release the control rope 5. The driven rope winding device does not have a locking function, which can prevent other rope winding devices from locking the descending movement of the curtain body when the rope is loose.

[0055] Preferably, the locking rope winding device 3 is arranged at the rope winding device position closest to the control assembly 2 and at the rope winding device position farthest from the control assembly 2 to ensure that the anti-rotation effect on the rope winding shaft 32 takes effect quickly.

[0056] To ensure the locking and limiting effect of the locking and limiting member 33 on the rope winding shaft 32, in the locking state, the locking and limiting member 33 contacts the rope winding shaft 32 through a limiting surface, and a reset member 34 is used to apply a force in a predetermined direction to the locking and limiting member 33. The predetermined direction is from the locking and limiting member 33 towards the rope winding shaft 32 (such as the Y-axis direction shown in Figure 4 and Figure 5 ) to frictionally hold the rope winding shaft 32 by using the locking and limiting member 33 and correspondingly limit the rotation of the rope winding shaft 32.

[0057] Specifically, as Figure 6 and Figure 7As shown, the limiting surface includes a first limiting surface 331 provided on the locking limiting member 33 and a second limiting surface 3221 provided on the rope winding shaft. The locking limiting member 33 forms the first limiting surface 331 on the wall surface facing the rope winding shaft 32. In the locked state, the first limiting surface 331 is pressed against the second limiting surface 3221.

[0058] Then, when the reset member 34 pushes the locking limit member 33 toward the rope winding shaft 32 and presses the locking limit member 33 against the rope winding shaft 32, the first limiting surface 331 of the locking limit member 33 contacts and presses against the second limiting surface 3221 of the rope winding shaft 32, and a friction force is generated between the first limiting surface 331 and the second limiting surface 3221, which can offset the rotational torque of the rope winding shaft 32, thereby limiting the rotation movement of the rope winding shaft 32 by friction locking, stopping the release of the control rope 5, and avoiding the control rope 5 from being too loose due to excessive release.

[0059] In a specific example, Figure 7 As shown, the first limiting surface 331 is an arc surface formed at the top of the locking limit member 33, and a convex ring 3223 is formed on the outer periphery of the rope winding shaft 32. The second limiting surface 3221 is the outer peripheral surface of the convex ring 3223. The outer peripheral surface of the convex ring 3223 is an arc surface, and the outer peripheral surface of the convex ring 3223 and the top arc surface of the locking limit member 33 have the same radius. The top arc surface of the locking limit member 33 and the outer peripheral surface of the convex ring 3223 are abutted to form surface contact, thereby enhancing the friction between the locking limit member 33 and the outer periphery of the rope winding shaft 32, thereby ensuring that the locking limit member 33 restricts the rotation of the rope winder.

[0060] When the curtain body 4 is lowered, the rope winding shaft 32 rotates in a first predetermined direction, which is a clockwise direction, to release the control rope 5. If the torque of the electric drive member 21 or the manual drive member 25 of the rope winding 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 rotational torque of the rope winding shaft 32.

[0061] In order to further ensure that the locking limit member 33 can be used to limit the rotation of the rope winding shaft 32 in the locked state, a mechanical limit stop is formed between the locking limit member 33 and the rope winding shaft 32 in the locked state.

[0062] Specifically, if Figure 6 and Figure 7 As shown, the locking limit member 33 is formed with a first stop surface 3321, and the direction of the first stop surface 3321 is opposite to the first preset direction; the outer peripheral surface of the rope winding shaft 32 is formed with a first pressing surface 3222, and the direction of the first pressing surface 3222 is the same as the first preset direction; and when the locking limit member 33 is switched to the locking state, the first stop surface 3321 is located on the rotation path of the first pressing surface 3222.

[0063] It can be understood that when the first limiting surface 331 abuts against the second limiting surface 3221 and the rope winding shaft 32 still has a tendency to rotate, the rope winding 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 orientation of the first stop surface 3321 is opposite to the rotation direction of the rope winding shaft 32, the first abutting surface 3222 can abut against the first stop surface 3321 during rotation, and the locking and limiting member 33 can apply a reverse acting force to the first abutting surface 3222 of the rope winding shaft 32 by using the first stop surface 3321, so that a mechanical limiting stop is formed between the locking and limiting member 33 and the rope winding shaft 32, and the rotation of the rope winding shaft 32 is stopped.

[0064] When the rope winding shaft 32 is connected to the electric driving member 21, the reverse acting 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. After the working current of the control assembly 2 exceeds the rated value and triggers overload protection, the control assembly 2 stops operating, thereby stopping driving the rope winding shaft 32 to rotate.

[0065] Furthermore, the cooperation between the first stop surface 3321 and the first abutting surface 3222 can be used to trigger the overload protection of the control assembly 2, ensuring that the rope winding shaft 32 can stop rotating, so as to further ensure that when the curtain body 4 pauses and descends midway, the rope winding shaft 32 will not continue to release the control rope 5, and further avoid the situation that the control rope 5 is too loose and gets entangled and disordered.

[0066] In one specific example, as Figure 6 shown, a convex block 332 is formed on the top surface of the locking and limiting member 33, the first stop surface 3321 is a vertical plane formed on the side surface of the convex block 332, and an avoidance notch 337 is formed between the convex block 332 and the first limiting surface 331. During the process of the rope winding shaft 32 driving the first abutting surface 3222 to rotate towards the first stop surface 3321, the first abutting surface 3222 rotates through the avoidance notch 337 and abuts against the first stop surface 3321, preventing the locking and limiting member 33 from being pressed down when the rope winding shaft 32 rotates, ensuring 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 guaranteeing the limiting effect of the locking and limiting member 33 on the rope winding shaft 32.

[0067] As an optional embodiment, to facilitate the switching of the locking and limiting member 33 between the locking state and the unlocking state, corresponding to stopping the rotation of the rope winding shaft 32 or releasing the rope winding shaft 32, the locking and limiting member 33 and the housing 31 can be arranged in a sliding connection or a rotating connection. Specifically, the following arrangement methods can be adopted: The first arrangement method, as Figures 3 to 5As shown, the housing 31 is formed with a guiding portion, and the locking and limiting member is slidably connected to the housing 31 through the guiding portion. The guiding portion extends along a third preset direction, where the third preset direction is from the bottom wall of the housing towards the winding shaft. The reset member 34 is disposed on the side of the locking and limiting member 33 away from the winding shaft 32.

[0068] Specifically, when the self-weight of the curtain body 4 acts on the locking and limiting member 33 through the control rope 5 and the control rope 5 is tensioned, the locking and limiting member 33 is subjected to a downward pressure, and the locking and limiting member 33 slides down, switching to the unlocked state and not contacting the winding shaft 32, while compressing the reset member 34. When the control rope 5 is slack and the self-weight of the curtain body 4 cannot act on the locking and limiting member 33 through the control rope 5, the reset member 34 rebounds without being pressured, driving the locking and limiting member 33 to move relative to the housing 31 along the extending direction of the guiding portion, achieving sliding towards the winding shaft, abutting the first limiting surface 331 of the locking and limiting member 33 against the winding shaft 32, switching to the locked state, and at the same time raising the first stop surface 3321 to the moving path of the first abutting surface 3222, so as to use the locking and limiting member 33 to restrict the rotation of the winding shaft 32.

[0069] As a specific example, the guiding portion can be a lifting chute 334 formed on the side wall of the housing 31. At the same time, a lifting boss 333 is formed on the side wall of the locking and limiting member 33. Both the lifting boss 333 and the lifting chute 334 extend in the vertical direction. The locking and limiting member 33 is slidably connected to the side wall of the housing 31 through the sliding connection between the lifting boss 333 and the lifting chute 334.

[0070] Of course, the guiding portion can also be a guide rail formed on the side wall of the housing 31. At the same time, a chute is formed on the side wall of the locking and limiting member 33, and the locking and limiting member 33 is slidably connected to the side wall of the housing 31 by the cooperation of the guide rail and the chute; the guiding portion can also be directly slidably connected to the side wall surface of the locking and limiting member 33 to achieve the guiding function.

[0071] In addition, besides being set in the vertical direction, the guiding portion can also be set at an angle with the bottom wall of the housing 31 to slide the locking and limiting member 33 obliquely towards the winding shaft 32; or the guiding portion can be set in the horizontal direction to horizontally abut the locking and limiting member 33 against the winding shaft 32. At this time, it is necessary to ensure that the height of the locking and limiting member is the same as the height of the winding shaft 32 to ensure that the first stop surface 3321 of the locking and limiting member can move to the rotation path of the first abutting surface 3222.

[0072] In the second arrangement method, the locking and limiting member 33 is formed with a rotating shaft (not shown in the figure). The locking and limiting member 33 is rotatably connected to the side surface of the housing 31 through the rotating shaft. The reset member 34 is sleeved on the rotating shaft. When the locking and limiting member 33 switches from the unlocked state to the locked state, the locking and limiting member 33 rotates towards the winding shaft 32.

[0073] Specifically, when the self-weight of the curtain body 4 acts on the locking and limiting member 33 through the control rope 5 and the control rope 5 is tensioned, the locking and limiting member 33 is subjected to a downward pressure, and the locking and limiting member 33 rotates away from the rope winding shaft 32, switching to the unlocking state, and does not contact the rope winding shaft 32, while compressing the reset member 34. When the control rope 5 is slack and the self-weight of the curtain body 4 cannot act on the locking and limiting member 33 through the control rope 5, the reset member 34 rebounds without being pressured, so as to drive the locking and limiting member 33 to rotate towards the rope winding shaft 32, switching to the locking state, abutting the first limiting surface 331 of the locking and limiting member 33 against the rope winding shaft 32, and at the same time moving the first stop surface 3321 to the moving path of the first abutting surface 3222, so as to use the locking and limiting member 33 to limit the rotation of the rope winding shaft 32.

[0074] It should be noted that when the second arrangement method is adopted, the shapes of the first limiting surface 331 and the first stop surface 3321 can be adaptively adjusted to fit the rotation path of the locking and limiting member 33.

[0075] In this embodiment, the first arrangement method is preferably adopted between the locking and limiting member 33 and the side wall of the housing 31.

[0076] Specifically, as Figure 6 shown, the locking and limiting member 33 is formed with a first installation groove 335, the first installation groove 335 faces the bottom wall of the housing 31, the reset member 34 is installed in the first installation groove 335, and one end of the reset member 34 abuts against the top wall of the first installation groove 335, and the other end of the reset member 34 abuts against the bottom wall of the housing 31, so that when in the unlocking state, the locking and limiting member 33 and the bottom wall of the housing 31 cooperate to compress the reset member 34, and when in the locking state, the reset member 34 can provide a reset acting force for the locking and limiting member 33 to abut against the rope winding shaft 32.

[0077] More specifically, when the first arrangement method is adopted, the reset member 34 can be a torsion spring or a compression spring. When the reset member 34 is a compression spring, the first installation groove 335 is vertically arranged on the bottom wall of the locking and limiting member 33; when the reset member 34 is a torsion spring, the first installation groove 335 is formed on the side wall and the bottom wall of the locking and limiting member 33, and a convex shaft is formed in the first installation groove 335, and the torsion spring is sleeved on the convex shaft.

[0078] When the second arrangement method is adopted, the reset member 34 is preferably a torsion spring. At this time, the first installation groove 335 is formed on the side wall where the locking and limiting member 33 is provided with a rotating shaft and the bottom wall of the locking and limiting member 33, so as to sleeve the torsion spring on the rotating shaft of the locking and limiting member 33 and use the elastic force of the torsion spring to drive the locking and limiting member 33 to rotate.

[0079] Of course, it should be noted that in some embodiments, the reset member 34 can also be two magnets. One magnet is arranged at the bottom of the locking and limiting member 33, and the other magnet is arranged on the bottom wall of the housing 31, and the two magnets are arranged in a way that the magnetic poles repel each other, so that when the self-weight of the curtain body 4 cannot act on the locking and limiting member 33, the magnetic repulsion force between the magnets can be used to push the locking and limiting member 33 towards the rope winding shaft 32. Or one magnet is arranged on the top of the locking and limiting member 33, and the other magnet is arranged on the surface of the rope winding shaft 32, and the two magnets are arranged in a way that the magnetic poles attract each other, so that when the self-weight of the curtain body 4 cannot act on the locking and limiting member 33, the magnetic attraction force between the magnets can be used to attract the locking and limiting member 33 towards the rope winding shaft 32.

[0080] In this embodiment, in the field of sunshade windows, the control rope 5 connected to the curtain body 4 includes but is not limited to the pull rope 51 for realizing the lifting of the curtain body 4 and the ladder rope 52 for adjusting the sunshade angle of the curtain body 4. In the locking rope winder 3, the rope winding shaft 32 includes a reel 321 and a page turning wheel 322. The reel 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 reel 321 and the page turning wheel 322 by using the output shaft to drive the reel 321 and the page turning wheel 322 to rotate, correspondingly driving the curtain body 4 to lift and adjusting the sunshade angle of the curtain body 4.

[0081] As an alternative embodiment, to ensure that when the control rope 5 is tightened, the self-weight of the curtain body 4 can act on the locking and limiting member 33 through the control rope 5, as Figure 4 、 Figure 5 and Figure 7 shown, the locking and limiting member 33 is located below the page turning wheel 322; a second installation groove 336 is formed on one side of the locking and limiting member 33 facing the rope outlet hole, a turning wheel 35 is rotatably connected to the second installation groove 336, and the turning wheel 35 is located above the rope outlet hole; the control rope 5 penetrates into the second installation groove 336 and bypasses the turning wheel 35 to be connected to the curtain body 4 from the rope outlet hole.

[0082] In this embodiment, the control rope 5 is preferably the pull rope 51. During the process of the reel 321 rotating to release the pull rope 51, the pull rope 51 can convert the self-weight of the curtain body 4 into the pressure on the turning wheel 35 above the rope outlet hole, and then use the turning wheel 35 to act the pressure on the locking and limiting member 33, so that the locking and limiting member 33 can move away from the page turning wheel 322, maintain the unlocked state, or switch from the locked state to the unlocked state, facilitating the continuous release of the pull rope 51 to lower the curtain body 4.

[0083] Moreover, by integrating the locking and limiting member 33 with the turning wheel 35, it is also possible to avoid the increase in the volume of the housing 31 after adding the locking and limiting member 33, which affects the space occupancy rate of the locking rope winder 3 in the window frame 1.

[0084] In one of the embodiments, for the convenience of winding the ladder rope 52 and installing the page turning wheel 322, as Figure 3 , Figure 6 , Figure 7 , Figure 10 and Figure 11 shown, the housing 31 is formed with an arc support 311, the page turning wheel 322 is rotatably arranged on the arc support 311, the housing 31 is formed with a placement notch 318, the placement notch 318 is located above the arc support 311, and the page turning wheel 322 is adapted to be placed into the arc support 311 from above or the side of the placement notch 318. Thus, when arranging the ladder rope 52 and the page turning wheel 322, the ladder rope 52 can be first passed upward through the rope outlet hole and wound around the page turning wheel 322; subsequently, the page turning wheel 322 can be placed into the arc support 311 from above or the side of the placement notch 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.

[0085] Further, to ensure the installation stability of the page turning wheel 322 in the locking winch 3, guide posts 312 are arranged above the arc support 311, a gland 317 is slidably connected to the two guide posts 312, the gland 317 is located above the arc support 311, and the page turning wheel 322 is located between the gland 317 and the arc support 311, so as to cooperate with the gland 317 and the arc support 311 to limit the page turning wheel 322 in the housing 31 and ensure the installation stability of the page turning wheel 322.

[0086] To ensure the connection stability between the gland 317 and the housing 31, the housing 31 is formed with a convex buckle, and the gland is formed with a buckle hole, so that when the gland 317 slides from the guide post 312 to the arc support 311, the buckle hole is engaged with the convex buckle to prevent loosening between the gland 317 and the housing 31 and ensure the connection stability between the gland 317 and the housing 31.

[0087] As an alternative embodiment, as Figure 3 shown, the housing 31 includes a first base 313 and a second base 314 that are detachably connected, so as to complete the layout of the internal components of the locking winch 3 before the first base 313 and the second base 314 are spliced, and to provide sufficient operating space for the installation layout of the pull rope 51 and the ladder rope 52, effectively improving the assembly efficiency of the internal components of the locking winch 3.

[0088] Specifically, as Figure 3 and Figure 8As shown, the first base 313 is formed with a first mating side surface 315, and the second base 314 is formed with a second mating side surface 316. When the first base 313 and the second base 314 are connected to form an integral housing 31, a gap is formed between the first mating side surface 315 and the second mating side surface 316, and the width of the gap is equal to the width of the locking and limiting member 33. Further, when the locking and limiting member 33 moves inside the housing 31, the first mating side surface 315 and the second mating side surface 316 can provide a guiding and limiting function for the locking and limiting member 33, ensure the moving direction of the locking and limiting member 33 within the first base 313 and the second base 314, avoid deviation, ensure the position accuracy when the locking and limiting member 33 moves towards the rope winding shaft 32, and further improve the locking and limiting effect of the locking and limiting member 33 on the rope winding shaft 32.

[0089] In addition, it should be noted that in order to reduce the friction between the locking and limiting member 33 and the first mating side surface 315 and the second mating side surface 316, the side surface of the locking and limiting member 33, the first mating side surface 315 and the second mating side surface 316 can be polished or plated.

[0090] For the detachable connection between the first base 313 and the second base 314, as Figure 10 and Figure 11 shown, a first positioning portion 3132 is formed on the side surface of the first base, a second positioning portion 3142 is formed on the side surface of the second base, and the first positioning portion 3132 is in positioning cooperation with the second positioning portion 3142; a plurality of first connection portions 3131 are formed on the outer edge of the first base, a plurality of second connection portions 3141 are formed on the outer edge of the second base, and the first connection portions 3131 are detachably connected to the second connection portions 3141.

[0091] Further, when assembling the housing 31, the internal components of the locking rope winder 3 can be arranged at corresponding positions first, and then the first positioning portion 3132 and the second positioning portion 3142 are used for positioning cooperation to provide assembly positioning points for the first base and the second base. Then, the first base and the second base are spliced through the first connection portions 3131 and the second connection portions 3141 to complete the assembly of the rope winder. The entire assembly process has simplified steps, and the positioning cooperation between the first positioning portion 3132 and the second positioning portion 3142 can effectively ensure the assembly accuracy when the first base and the second base are spliced. Further, while ensuring the stable winding of the curtain sheet control rope by the rope winder, the assembly efficiency of the internal components of the rope winder is improved, meeting the requirements of mass production.

[0092] Specifically, the first connecting portion 3131 may be a plurality of clamping grooves formed on the outer edge of the first base 313, and the second connecting portion 3141 may be a plurality of buckles formed on the outer edge of the second base 314 to snap-connect the first base 313 and the second base 314; meanwhile, connection holes are formed at the tops of the first base 313 and the second base 314, and the connection holes can be penetrated by fasteners such as bolts or studs to assist in connection by using fasteners such as bolts or studs to prevent the first base 313 and the second base 314 from being misaligned due to force expansion.

[0093] The first positioning portion 3132 may be a positioning convex column on the side surface of the first base 313, and the second positioning portion 3142 may be a positioning hole on the side surface of the second base 314, and the positioning convex column and the positioning hole are in positioning cooperation. When splicing the first base 313 and the second base 314, the positioning convex column can be inserted into the positioning hole to provide a positioning point for splicing the first base 313 and the second base 314 and ensure the splicing accuracy of the first base 313 and the second base 314.

[0094] In this embodiment, to ensure the uniform winding of the pull rope 51 on the winding shaft 32, as Figure 4 and Figure 5 shown, one end of the winding shaft 32 away from the locking and limiting member 33 is the pull rope fixing end 3211, the winding shaft 32 is rotatably connected with a rotating slider 36, the rotating slider 36 is in threaded transmission with the inner wall surface of the housing 31, the housing 31 is provided with a translation slider 37, and the translation slider 37 is connected with the rotating slider 36; the rotating slider 36 is used to drive the translation slider 37 to move along the length direction of the winding shaft 32. A guide wheel 38 is rotatably arranged inside the translation slider 37.

[0095] With the above arrangement, after the pull rope 51 is fixed to the pull rope fixing end 3211, the pull rope 51 can be passed through the inside of the translation slider 37, bypass the guide wheel 38, extend to the steering wheel 35, and after passing through the rope outlet hole, connect the pull rope 51 with the curtain body 4. Subsequently, the control assembly 2 drives the reel 321 to rotate to wind the pull rope 51 correspondingly; at the same time, the rotating slider 36 converts the rotation of the reel 321 into a translational motion along the length direction of the reel 321 and drives the translation slider 37 to slide along the length direction of the winding shaft 32, so as to change the winding point position of the pull rope 51 relative to the reel 321 and ensure the uniform winding and stable rope outlet of the pull rope 51 on the reel 321.

[0096] In the related cord reel, after the curtain body 4 is completely retracted, the reel 321 may continue to rotate under the drive of the control component 2, resulting in the problem that the pull cord 51 is broken due to overtravel. To avoid breaking the control cord 5, a preset winding length is formed on the cord winding shaft for the control cord 5, and the preset winding length is less than or equal to the length when the curtain body 4 is fully opened, so as to limit the ascending or descending stroke of the control cord 5 driving the curtain body 4. When the control cord 5 moves to the limit position, the winding or releasing action of the control cord 5 reaches the limit and cannot continue to move, thereby avoiding the breakage of the control cord 5 due to excessive stretching.

[0097] Specifically, to limit the preset winding length of the pull cord 51 by the reel 321, as Figure 4 、 Figure 5 and Figure 9 shown, the cord winding shaft 32 is provided with a stroke limiting member 39, and the stroke limiting member 39 is located on the moving path of the translation slider 37, and the control cord 5 is wound between the stroke limiting member 39 and the fixed end 3211 of the pull cord.

[0098] When the reel 321 winds the pull cord 51, the rotary slider 36 drives the translation slider 37 to move towards the stroke limiting member 39. The side of the stroke limiting member 39 facing away from the locking limiting member 33 is adapted to abut against the translation slider 37, so as to use the stroke limiting member 39 to limit the sliding stroke of the translation slider 37, correspondingly limit the winding point position of the pull cord 51 on the reel 321, thereby limiting the effective winding length of the pull cord 51 and the winding stroke of the pull cord 51 on the reel 321, effectively preventing the problem that the pull cord 51 is broken due to overtravel when the curtain body 4 is retracted, and ensuring the use performance of the sunshade window.

[0099] Specifically, when the curtain body 4 is retracted, the cord winding shaft 32 rotates in the second preset direction, where the second preset direction is the counterclockwise direction, to complete the retraction action of the pull cord 51.

[0100] To further improve the limiting effect of the stroke limiting member 39 on the translation slider 37, as Figure 9 shown, a limiting boss 391 is provided on the side of the stroke limiting member 39 facing away from the locking limiting member 33, and the limiting boss 391 forms a second abutting surface 3911, and the orientation of the second abutting surface 3911 is the same as the second preset direction; a limiting notch 371 is formed on the side of the translation slider 37 facing the stroke limiting member 39, and the limiting notch 371 forms a second stop surface 3711, and the orientation of the second stop surface 3711 is opposite to the second preset direction; when the translation slider 37 abuts against the stroke limiting member 39, the second stop surface 3711 is located on the rotation path of the second abutting surface 3911.

[0101] It can be understood that when the translation slider 37 abuts against the stroke limiting member 39, the stroke limiting member 39 may rotate due to the inertial rotation of the rope winding shaft 32, correspondingly driving the second abutting surface 3911 to continue rotating. Since the second stop surface 3711 is located on the rotation path of the second abutting surface 3911, and the orientation of the second stop surface 3711 is opposite to the rotation direction of the second abutting surface 3911, when the second stop surface 3711 rotates, it can abut against the second abutting surface 3911, and a relative acting force is formed between the second abutting surface 3911 and the second stop surface 3711. Under the influence of the mutual acting force, the working current of the control assembly 2 increases and triggers overload protection, so that the control assembly 2 stops operating, and then the rotation of the rope winding shaft 32 stops, correspondingly stopping the winding action of the pulling rope 51, further improving the limiting effect of the stroke limiting member 39 on the translation slider 37.

[0102] In one specific example, as Figure 9 shown, the stroke limiting member 39 is a limiting ring formed on the outer peripheral surface of the reel 321. The limiting ring is fixed to the reel 321 by fasteners such as bolts or studs, and the outer diameter of the limiting ring is smaller than the inner diameter of the housing 31 to avoid affecting the rotation of the reel 321 and the stroke limiting member 39. The radian of the limiting notch 371 is consistent with the radian of the outer wall surface of the limiting ring, so as to ensure that the second stop surface 3711 is located under the rotation path of the second abutting surface 3911, and ensure that when the limiting ring drives the second abutting surface 3911 to rotate towards the second stop surface 3711 of the limiting notch 371, the second abutting surface 3911 can rotate through the limiting notch 371 and abut against the second stop surface 3711, so that the rope winding shaft 32 stops rotating.

[0103] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A sunshade window, characterized in that, It includes 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 includes a locking rope winding device, and at least one of the control ropes is connected with the locking rope winding device; The locking rope winding device includes a housing and a rope winding shaft for winding or releasing the control rope. A locking limiting member is movably arranged inside the housing. The locking limiting member is located below the rope winding shaft, and a reset member is arranged between the locking limiting member and the housing; The control rope bypasses the locking limiting member and is connected with the curtain body through the rope outlet hole of the housing; The locking limiting member is adapted to switch between a locking state and an unlocking state. Wherein, in the locking state, the control rope is slack, and the reset member presses the locking limiting member against the rope winding shaft, so that the locking limiting member restricts the rotation of the rope winding shaft; In the unlocking state, the control rope is taut, and the control rope pulls the locking limiting member away from the rope winding shaft.

2. The sunshade window according to claim 1, wherein The control assembly includes an electric driving member and a stroke controller. The electric driving member is in transmission connection with the rope winding device assembly; The stroke controller is electrically connected with the electric driving member, and the stroke controller is used to limit the upward stroke and downward stroke of the curtain body.

3. The sunshade window according to claim 1, wherein The control assembly includes an electric driving member and an overload protection controller. The electric driving member is in transmission connection with the rope winding device assembly; The overload protection controller is electrically connected with the electric driving member, 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 inside of the window frame is hollow; The control assembly includes a manual driving member and a transmission member. The manual driving member is in transmission connection with the rope winding device 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 rope outlet hole of the window frame 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 winding device assembly includes at least one group of the locking rope winding devices and at least one group of driven rope winding devices. The locking rope winding devices are in transmission connection with the driven rope winding devices, and each group of the driven rope winding devices is connected with one of the control ropes.

7. The sunshade window according to claim 1, characterized in that, 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 to apply a force in a predetermined direction to the locking limiting member. The predetermined direction is from the locking limiting member towards the rope winding shaft, so as to frictionally hold the rope winding shaft by using the locking limiting member.

8. The sunshade window according to claim 7, wherein The limiting surface includes 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 facing the rope winding shaft forms the first limiting surface. In the locking state, the first limiting surface presses against the second limiting surface.

9. The sunshade window according to claim 7, wherein In the locking state, a mechanical limiting stop is formed between the locking limiting member and the rope winding shaft.

10. The sunshade window according to claim 9, characterized in that, When the curtain body descends, the rope winding shaft rotates along a first preset direction; The locking limiting member is formed with a first stop surface, and the orientation of the first stop surface is opposite to the first preset direction; A first pressing surface is formed on the outer peripheral surface of the rope winding shaft, and the orientation of the first pressing surface is the same as the first preset direction; When the locking and limiting member switches to the locked state, the first stop surface is located on the rotation path of the first abutting surface.

11. The sunshade window according to claim 7, characterized in that, The locking and limiting member is formed with a first mounting groove facing the bottom wall of the housing. 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 housing.

12. 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.

13. The sunshade window according to claim 12, wherein, A guiding portion is formed on the inner wall of the housing. The locking and limiting member is slidably connected to the housing through the guiding portion. The guiding portion extends along a third preset direction, and the third preset direction is from the bottom wall of the housing towards the winding shaft. The reset member is arranged on the side of the locking and limiting member away from the winding shaft. Alternatively, the locking and limiting member is formed with a rotating shaft, and the locking and limiting member is rotatably connected to the side surface of the housing through the rotating shaft. The reset member is sleeved on the rotating shaft. When switching from the unlocked state to the locked state, the locking and limiting member rotates towards the winding shaft.

14. The sunshade window according to claim 10, wherein, The winding shaft includes a reel and a page turning wheel, and the locking and limiting member is located below the page turning wheel. A second mounting groove is formed on one side of the locking and limiting member facing the rope outlet hole. A turning wheel is rotatably connected to the second mounting groove, and the turning wheel is located above the rope outlet hole. The control rope penetrates into the second mounting groove, bypasses the turning wheel, and is connected to the curtain body from the rope outlet hole.

15. The sunshade window according to claim 14, characterized in that, The housing is formed with an arc-shaped support, and the page turning wheel is rotatably arranged on the arc-shaped support. The housing is formed with a placement notch, and the placement notch is located above the arc-shaped support. The page turning wheel is adapted to be placed into the arc-shaped support from above or the side of the placement notch to facilitate the installation of the page turning wheel.

16. The sunshade window according to claim 15, wherein, Guide posts are arranged above the arc-shaped support. A pressing cover is slidably connected to the guide posts. The pressing cover is located above the arc-shaped support, and the page turning wheel is located between the pressing cover and the arc-shaped support.

17. The sunshade window according to claim 1, characterized in that, One end of the winding shaft away from the locking and limiting member is a pull rope fixing end. The winding shaft is rotatably connected with a rotating slider. The rotating slider is in threaded transmission with the inner wall surface of the housing. The housing 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 winding shaft. A guide wheel is arranged inside the translation slider.

18. The sunshade window according to claim 17, characterized in that, The control rope forms a preset winding length on the winding shaft, and the preset winding length is less than or equal to the length when the curtain body is fully opened, so as to limit the ascending or descending stroke of the control rope driving the curtain body.

19. The sunshade window according to claim 18, wherein The winding shaft is provided with a stroke limiting member, and the stroke limiting member is located on the movement path of the translation slider. The control rope is wound between the stroke limiting member and the pull rope fixing end. The side surface of the stroke limiting member away from the locking and limiting member is adapted to abut against the translation slider.

20. The sunshade window according to claim 19, characterized in that, When the curtain body is retracted, the winding shaft rotates along a second preset direction. A limiting convex platform is arranged on the side of the stroke limiting member facing away from the locking limiting member. The limiting convex platform is formed with a second abutting surface, and the orientation of the second abutting 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. The limiting notch is formed with a second stopping surface, and the orientation of the second stopping surface is opposite to the second preset direction; When the translation slider abuts against the stroke limiting member, the second stopping surface is located on the rotation path of the second abutting surface.

21. The sunshade window according to any one of claims 1 to 5, characterized in that, The housing includes a first base and a second base that are detachably connected. The first base is formed with a first mating side surface, the second base is formed with a second mating side surface, and a spacing is formed between the first mating side surface and the second mating side surface. The spacing is equal to the width of the locking limiting member.

22. The sunshade window according to claim 21, characterized in that, A first positioning portion is formed on the side surface of the first base, and a second positioning portion is formed on the side surface of the second base. The first positioning portion and the second positioning portion are in positioning cooperation; A plurality of first connecting portions are formed on the outer edge of the first base, and a plurality of second connecting portions are formed on the outer edge of the second base. The first connecting portions and the second connecting portions are detachably connected.

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