Rope winder and hollow glass built-in shutter comprising same

Abstract

The utility model relates to the technical field of shutters, in particular to a rope winder and a hollow glass built-in shutter comprising the rope winder, the rope winder comprises a rope winding seat, the rope winding seat comprises a bottom wall and a supporting wall, the supporting wall is provided with a bearing mounting hole, and a bearing is mounted in the bearing mounting hole; the rope winding shaft comprises a shaft rod and a shaft cover, a conical concave part is formed at one end of the shaft rod, a pivoting rod is formed in the middle of the conical concave part, and one end of the pivoting rod is connected with the bearing; the other end of the shaft rod is connected with a shaft cover; a pull rope fixing hole is formed in the shaft cover; the shaft sleeve assembly comprises a lantern ring and a spring, a ladder rope fixing part is arranged on the lantern ring, a conical matching part is formed at one end of the lantern ring, and the lantern ring is connected to the pivot joint rod in a sleeving mode; the spring is sleeved on the pivoting rod, one end of the spring abuts against the inner side wall of the supporting wall, and the other end of the spring abuts against the lantern ring. According to the utility model, the simplified design of the rope winder is realized, the number of parts is reduced, the processing cost and the dismounting difficulty are reduced, and the stability and the reliability of the rope winder are kept at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of blinds, and particularly relates to a rope winder and a built-in hollow glass blind including the same. Background Art

[0002] A built-in hollow glass blind refers to a window belonging to the category of sunshade hollow glass products, in which a liftable blind is arranged between two glasses (inner glass and outer glass, also called front glass and rear glass) that are arranged face to face and the four peripheral edge parts are sealed. There are two control modes for the built-in hollow glass blind: one is single controller control; the other is double controller control. Single controller control means that the cooperation of an external controller and an internal controller realizes the flipping of the blind blades of the blind and the lifting of the blind. Double controller control means that two internal controllers and two external controllers respectively control the flipping of the blind blades of the blind and the lifting of the blind.

[0003] In the related art, the application number CN202220866900.4 discloses a curtain rope winder with the name of a curtain rope winder, which includes a rope winding base, a rope winding shaft, and a rope winding cover. The rope winding base has a bottom wall, first and second end walls, a support member, and a wire guiding through hole passing through the bottom wall and the support member. The rope winding shaft has a shaft rod passing through the support member and an end cap; the shaft rod has a first pivot shaft rotatably supported on the first end wall; the end cap is detachably fixed to one end of the shaft rod, and has a wire guiding fixing hole protruding from the rod surface of the shaft rod and a second pivot shaft rotatably supported on the second end wall. The rope winding cover has a semi-circular cover body for fixing a dimming ladder rope, and first and second side walls pivotally sleeved on the first and second pivot shafts. It also includes a shaft sleeve assembly, the shaft sleeve assembly has a shaft sleeve sleeved on the first pivot shaft and a coil spring sleeved on the shaft sleeve; the coil spring includes a body having several coils and sleeved and tightened on the shaft sleeve, a first dial arm radially protruding from a first side of the body, and a second dial arm radially protruding from a second side of the body; the rope winding cover also includes a dial piece extending between the first dial arm and the second dial arm; however, in the above technology, when the rope winding shaft deflects clockwise or counterclockwise relative to the rope winding base, the first dial arm or the second dial arm will abut against the dial piece and drive the rope winding cover to deflect relative to the rope winding base. Thus, it is necessary to design the first dial arm and the second dial arm for the coil spring, and the rope winding cover also includes a dial piece, which has the disadvantages of complex structure, high processing cost, and troublesome disassembly and assembly. Summary of the Utility Model

[0004] The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the present utility model is to provide a rope winding device and a hollow glass built-in louver including the same, which realizes a simplified design of the rope winding device, reduces the number of components, lowers the processing cost and the difficulty of disassembly and assembly, and at the same time maintains the stability and reliability of the rope winding device.

[0005] The first aspect of the present utility model provides a rope winding device, comprising:

[0006] A rope winding seat, the rope winding seat includes a bottom wall and a support wall extending vertically upward from the bottom wall, a bearing mounting hole is provided on the support wall, and a bearing is mounted in the bearing mounting hole; a ladder rope through hole and a pull rope through hole are provided on the bottom wall;

[0007] A rope winding shaft, the rope winding shaft includes a hollow shaft rod and a shaft cover, a conical recess is formed at one end of the shaft rod, a hollow pivot rod extends axially outward from the middle of the conical recess, and one end of the pivot rod is connected to the bearing; the other end of the shaft rod is connected to the shaft cover, and a pull rope fixing hole is provided on the shaft cover;

[0008] A bushing assembly, the bushing assembly includes a collar and a spring, a ladder rope fixing part is provided on the collar, a conical mating part is formed at one end of the collar, and the collar is sleeved on the pivot rod; the spring is sleeved on the pivot rod, one end of which abuts against the inner side wall of the support wall, and the other end abuts against the collar, so that the conical mating part of the collar forms a tight conical surface contact with the conical recess.

[0009] In the first aspect of the present utility model, as a preferred embodiment, the shaft rod includes a conical guiding section with a gradually decreasing radius and a cylindrical winding section, the maximum radius end of the conical guiding section is located on the side adjacent to the pivot rod, the minimum radius end of the conical guiding section is smoothly transitionally connected to the cylindrical winding section, and a retaining edge is formed at the maximum radius end of the conical guiding section.

[0010] In the first aspect of the present utility model, as a preferred embodiment, it further includes an anti-rotation structure, the anti-rotation structure includes an anti-rotation convex block provided on the inner side wall of the support wall, and a stop portion provided at one end of the collar; the shaft rod drives the collar to rotate clockwise or counterclockwise, when the stop portion rotates clockwise to contact the first end of the anti-rotation convex block, it is limited by the anti-rotation convex block, so that the blade flips to the light-shielding state, and when the stop portion rotates counterclockwise to contact the second end of the anti-rotation convex block, it is limited by the anti-rotation convex block, so that the blade flips to the light-transmitting state.

[0011] In the first aspect of the present utility model, as a preferred embodiment, a plurality of axial grooves are provided on the outer surface of the cylindrical winding section.

[0012] In the first aspect of the present utility model, as a preferred embodiment, two elastic clamping arms are formed at one end of the pivot rod, and the two elastic clamping arms are snap-connected to the inner ring of the bearing.

[0013] In the first aspect of the present utility model, as a preferred embodiment, a locking hole penetrating radially is provided on the shaft cover, and a plug hole penetrating axially is provided on the shaft cover.

[0014] The second aspect of the present utility model provides a built-in louver for insulating glass, which includes a frame body with a louver curtain cavity in the middle, a louver curtain arranged in the louver curtain cavity of the frame body, two rope reels, and a transmission mechanism for controlling the rotation of the two rope reels. The louver curtain is respectively connected to the two rope reels.

[0015] In the second aspect of the present utility model, as a preferred embodiment, the transmission mechanism includes a rotating shaft, an upper belt gear, a lower belt gear, a belt with a rack, an inner controller, and an outer controller;

[0016] The upper belt gear and the lower belt gear are respectively rotatably positioned in the frame body. The belt is respectively meshed with the upper belt gear and the lower belt gear. Both ends of the belt are respectively connected to both ends of the inner controller and form a closed loop. The outer controller is magnetically connected to the inner controller; one end of the rotating shaft is connected to the upper belt gear, and the other end thereof is respectively in transmission connection with the shaft rods of the two rope reels.

[0017] In the second aspect of the present utility model, as a preferred embodiment, the upper belt gear includes an integrally formed large-diameter gear and a small-diameter gear. The centers of the large-diameter gear and the small-diameter gear are coaxial, and the belt can be selectively matched with either the large-diameter gear or the small-diameter gear.

[0018] In the second aspect of the present utility model, as a preferred embodiment, the inner controller includes a base, an upper roller, a lower roller and a magnet; a first installation cavity is provided at the upper part of the outer side surface of the base, a second installation cavity is provided at the lower part of the outer side surface of the base, and a third installation cavity is provided in the middle of the outer side surface of the base; the upper roller is rotatably installed in the first installation cavity; the lower roller is rotatably installed in the second installation cavity; the magnet is installed in the third installation cavity; a spring installation groove is provided on the right side surface of the base, a first rope passing hole is opened on the top wall of the spring installation groove, and a second rope passing hole is opened on the bottom wall of the spring installation groove; a first elastic component, a second elastic component, a first connecting rope and a second connecting rope are installed in the spring installation groove; the first elastic component is connected to the first end of the first connecting rope, and the second end of the first connecting rope is adapted to pass through the first rope passing hole and be connected to the first end of the belt; the second elastic component is connected to the second end of the second connecting rope, and the second end of the second connecting rope is adapted to pass through the second rope passing hole and be connected to the second end of the belt.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. Through the cooperation of the rope winding base, the rope winding shaft and the bushing assembly, during the installation process, first the collar is sleeved on the pivot rod, then the spring is sleeved on the pivot rod, and then one end of the pivot rod is inserted into the inner ring of the bearing, so that one end of the spring abuts against the inner side wall of the support wall, and the other end abuts against the collar, making the conical mating portion of the collar form a tight conical surface contact with the conical recessed portion, realizing the simplified design of the rope winder, reducing the number of components, lowering the processing cost and the difficulty of disassembly and assembly, and at the same time maintaining the stability and reliability of the rope winder.

[0021] 2. The anti-rotation structure of the present utility model ensures that the blade can be accurately flipped to the light-shielding or light-transmitting state, improving the convenience and comfort of using the shutter. Through the associated design of the anti-rotation structure and the flipping state of the blade, the shutter can better meet the personalized needs of users for light shielding or light transmission. Users do not need to worry that the blade will rotate excessively or stay in an inappropriate position, and the anti-rotation structure brings a more stable and reliable experience for the use of the shutter.

[0022] 3. The upper belt gear of the present utility model includes a large-diameter gear and a small-diameter gear which are integrally formed. When the belt is engaged with the large-diameter gear, due to the larger radius of the large-diameter gear, the belt needs to move a longer distance to complete one full rotation. This means that when the external controller moves, it needs to travel a longer stroke to drive the rope winder to complete one full lifting and lowering action. On the contrary, when the belt is engaged with the small-diameter gear, due to the smaller radius of the small-diameter gear, the belt needs to move a shorter distance to complete one full rotation. Therefore, when the external controller moves, it only needs to travel a shorter stroke to drive the rope winder to complete one full lifting and lowering action. In summary, the present utility model can flexibly adjust the stroke of the external controller according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the rope winder of the present utility model;

[0024] Figure 2 is a schematic structural view of the rope winding base of the present utility model;

[0025] Figure 3 is a schematic structural view of the rope winding shaft of the present utility model;

[0026] Figure 4 is a schematic structural view of the shaft cover of the present utility model;

[0027] Figure 5 is a schematic structural view of the collar of the present utility model;

[0028] Figure 6 is a partial structural view of the cooperation between the spring and the pivot rod of the present utility model;

[0029] Figure 7 is a schematic structural view of the built-in blind in insulating glass of the present utility model;

[0030] Figure 8 is a partial structural view of the built-in blind in insulating glass of the present utility model;

[0031] Figure 9 is a schematic structural view of the internal controller of the present utility model;

[0032] Figure 10 is a schematic structural view of the internal controller of the present utility model from another angle.

[0033] In the figure: 100, rope winder; 10, rope winding base; 11, bottom wall; 111, ladder rope threading hole; 112, pull rope threading hole; 12, support wall; 121, bearing mounting hole; 122, anti-rotation bump; 20, rope winding shaft; 21, shaft rod; 211, conical recess; 2101, conical guiding section; 2102, cylindrical winding section; 2013, flange; 2014, axial groove; 22, shaft cover; 221, pull rope fixing hole; 222, locking hole; 223, insertion hole; 23, pivot rod; 231, elastic clamping arm; 30, bushing assembly; 31, collar; 311, ladder rope fixing part; 312, conical mating part; 313, stop part; 32, spring; 200, frame body; 300, roller blind; 310, roller blind blade; 320, pull rope; 400, transmission mechanism; 410, rotating shaft; 420, upper belt gear; 430, lower belt gear; 440, belt; 450, internal controller; 4510, base; 4511, first installation cavity; 4512, second installation cavity; 4513, third installation cavity; 4514, spring installation groove; 45141, first rope threading hole; 45142, second rope threading hole; 4520, upper roller; 4530, lower roller; 4540, magnet; 4550, first elastic component; 4560, second elastic component; 4570, first connecting rope; 4580, second connecting rope. Detailed implementation manners

[0034] Next, in combination with the drawings and specific implementation manners, the utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically and precisely defined.

[0036] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected", "communicated", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or it can be connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] The terms "first", "second", etc. in the specification, claims, and the above-mentioned drawings of the present application are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0038] Embodiment 1:

[0039] Please refer to Figure 1-8 As shown, this embodiment provides a rope winder 100, which includes a rope winding base 10, a rope winding shaft 20, and a bushing assembly 30;

[0040] Specifically, the rope winding base 10 includes a bottom wall 11 and a support wall 12 extending vertically upward from the bottom wall 11. A bearing mounting hole 121 is provided on the support wall 12, and a bearing is mounted in the bearing mounting hole 121; a ladder rope through-hole 111 and a pull rope through-hole 112 are provided on the bottom wall 11;

[0041] Specifically, the rope winding shaft 20 includes a hollow shaft rod 21 and a shaft cover 22. A conical recess 211 is formed at one end of the shaft rod 21. A hollow pivot rod 23 extends axially outward in the middle of the conical recess 211, and one end of the pivot rod 23 is connected to the bearing; the other end of the shaft rod 21 is connected to the shaft cover 22, and a pull rope fixing hole 221 is provided on the shaft cover 22;

[0042] Specifically, the bushing assembly 30 includes a collar 31 and a spring 32. A ladder rope fixing portion 311 is provided on the collar 31. A conical mating portion 312 is formed at one end of the collar 31. The collar 31 is sleeved on the pivot rod 23; the spring 32 is sleeved on the pivot rod 23, one end of which abuts against the inner side wall of the support wall 12, and the other end abuts against the collar 31, so that the conical mating portion 312 of the collar 31 forms a tight conical contact with the conical recess 211.

[0043] Based on the above structure, during the actual application process, one end of the ladder rope passes through the ladder rope connection hole and is connected to the ladder rope fixing part 311 on the collar 31. When the collar 31 rotates, it drives the blades of the louver to flip through the ladder rope, thereby adjusting the light transmittance of the louver. One end of the pull rope 320 passes through the pull rope connection hole and is wound around the shaft cover 22. When the winding shaft 20 rotates, it drives the blades of the louver to rise or fall by winding or relaxing the pull rope 320. One end of the rotating shaft 410 passes through the shaft cover 22, the shaft rod 21, and the pivot rod 23 in sequence, and can drive the shaft rod 21 to rotate. When the shaft rod 21 rotates, it simultaneously drives the collar 31 to rotate, realizing the control functions of the ladder rope and the pull rope 320. During the installation process of this embodiment, first, the collar 31 is sleeved on the pivot rod 23, then the spring 32 is sleeved on the pivot rod 23, and then one end of the pivot rod 23 is inserted into the inner ring of the bearing, so that one end of the spring 32 abuts against the inner side wall of the support wall 12, and the other end abuts against the collar 31, enabling the conical mating part 312 of the collar 31 to form a tight conical surface contact with the conical recess 211, realizing a simplified design of the rope winding device 100, reducing the number of components, lowering the processing cost and the difficulty of disassembly and assembly, while maintaining the stability and reliability of the rope winding device 100.

[0044] In a preferred embodiment of the present utility model, the shaft rod 21 includes a conical guiding section 2101 with a gradually decreasing radius and a cylindrical winding section 2102. The maximum radius end of the conical guiding section 2101 is located on the side adjacent to the pivot rod 23. The minimum radius end of the conical guiding section 2101 is smoothly and transitionally connected to the cylindrical winding section 2102. A retaining edge 2013 is formed at the maximum radius end of the conical guiding section 2101.

[0045] On the basis of the above structure, when the rope winding shaft 20 starts to rotate, the pulling rope 320 first starts to wind from the maximum radius end of the conical guiding section 2101. Since the radius of the conical guiding section 2101 gradually decreases, the pulling rope 320 will gradually tighten during the winding process and be guided along the slope of the guiding section. With the continuous rotation of the rope winding shaft 20, more of the pulling rope 320 is wound onto the shaft rod 21. Due to the slope of the conical guiding section 2101, the previously wound pulling rope 320 will be gradually pushed out by the subsequently wound pulling rope 320 and move along the slope of the guiding section towards the cylindrical winding section 2102. The pushed-out pulling rope 320 will gradually transition to the cylindrical winding section 2102, where it maintains a uniform tension and a stable winding pattern. The cylindrical winding section 2102 has the same radius, which enables the pulling rope 320 to be wound orderly and tightly thereon without overlapping or crossing. As the rope winding shaft 20 continues to rotate, the pulling rope 320 will continuously be wound onto the cylindrical winding section 2102 until the required winding length is reached or the rope winding shaft 20 stops rotating. During the entire winding process, the conical guiding section 2101 serves to guide the pulling rope 320, gradually tighten it, and transition it to the cylindrical winding section 2102.

[0046] In a preferred embodiment of the present utility model, it further includes an anti-rotation structure. The anti-rotation structure includes an anti-rotation convex block 122 provided on the inner sidewall of the support wall 12, and a stop portion 313 provided at one end of the collar 31; the shaft rod 21 drives the stop collar 31 to rotate clockwise or counterclockwise. When the stop portion 313 rotates clockwise to contact the first end of the anti-rotation convex block 122, it is limited by the anti-rotation convex block 122, causing the blade to flip to the light-shielding state. When the stop portion 313 rotates counterclockwise to contact the second end of the anti-rotation convex block 122, it is limited by the anti-rotation convex block 122, causing the blade to flip to the light-transmitting state.

[0047] Based on the above structure, when the blade needs to be flipped to the light-shielding state, the shaft rod 21 drives the collar 31 to rotate clockwise. The stop portion 313 rotates clockwise accordingly until it contacts the first end of the rotation-stopping protrusion 122. At this time, the rotation-stopping protrusion 122 limits the stop portion 313, preventing the collar 31 from further rotating, and thus the blade is stably in the light-shielding state. When the blade needs to be flipped to the light-transmitting state, the shaft rod 21 drives the collar 31 to rotate counterclockwise. The stop portion 313 rotates counterclockwise accordingly until it contacts the second end of the rotation-stopping protrusion 122. At this time, the rotation-stopping protrusion 122 also limits the stop portion 313, preventing the collar 31 from further rotating, and thus the blade is stably in the light-transmitting state. The rotation-stopping structure ensures that the blade can be accurately flipped to the light-shielding or light-transmitting state, improving the convenience and comfort of using the shutter. Through the associated design of the rotation-stopping structure and the flipping state of the blade, the shutter can better meet the personalized needs of users for light shielding or light transmission. Users don't need to worry about the blade over-rotating or staying in an inappropriate position, and the rotation-stopping structure brings a more stable and reliable experience to the use of the shutter.

[0048] In a preferred embodiment of the present utility model, a plurality of axial grooves 2014 are provided on the outer surface of the cylindrical winding segment 2102.

[0049] When the drawstring 320 is wound around the cylindrical winding segment 2102, it will come into contact with the grooves. The grooves increase the contact area and roughness between the drawstring 320 and the cylindrical winding segment 2102, thereby increasing the frictional force between them. This increased frictional force helps to better control the movement and positioning of the drawstring 320 during the winding and releasing processes.

[0050] In a preferred embodiment of the present utility model, two elastic clamping arms 231 are formed at one end of the pivot rod 23, and the two elastic clamping arms 231 are snap-connected to the inner ring of the bearing.

[0051] During the assembly process, the two elastic clamping arms 231 of the pivot rod 23 are compressed and inserted into the corresponding slots of the inner ring of the bearing. Once the clamping arms completely enter the slots, they will restore their shape due to their own elasticity and form a tight snap connection with the edges of the slots. This snap connection ensures a firm combination between the pivot rod 23 and the inner ring of the bearing, enabling the shaft rod 21 to rotate smoothly without loosening or falling off.

[0052] In a preferred embodiment of the present utility model, a locking hole 222 penetrating radially is provided on the shaft cover 22, and a plugging hole 223 penetrating axially is provided on the shaft cover 22. Preferably, the plugging hole 223 is a square hole, and correspondingly, the rotating shaft 410 is a square rotating shaft 410.

[0053] In actual application, the rotating shaft 410 is first inserted into the insertion hole 223 of the shaft cover 22, and then the locking screw is tightened through the locking hole 222 so that the end of the locking screw abuts against the rotating shaft 410. Through the locking action of the locking screw, the rotating shaft 410 is firmly fixed on the shaft cover 22 and cannot be loosened or fallen off. When the rotating shaft 410 needs to be rotated, due to the stable connection between the rotating shaft 410 and the shaft cover 22 and the smooth rotation channel, the rotating shaft 410 can rotate smoothly without being hindered.

[0054] Embodiment 2:

[0055] Please refer to Figure 1-10 As shown, this embodiment provides a hollow glass built-in blinds, including a frame 200 with a blind cavity in the middle, a blind 300 arranged in the blind cavity of the frame 200, two rope winders 100 of embodiment 1, and a transmission mechanism 400 for controlling the rotation of the two rope winders 100, and the blind 300 is respectively connected to the two rope winders 100.

[0056] In a preferred embodiment of the present utility model, the transmission mechanism 400 includes a rotating shaft 410, an upper belt gear 420, a lower belt gear 430, a belt 440 with a rack, an inner controller 450 and an outer controller;

[0057] The upper belt gear 420 and the lower belt gear 430 are rotatably installed in the frame 200 respectively, and the belt 440 is meshed with the upper belt gear 420 and the lower belt gear 430 respectively. The two ends of the belt 440 are respectively connected to the two ends of the inner controller 450 to form a closed loop, and the outer controller is connected to the inner controller 450 by magnetic attraction; one end of the rotating shaft 410 is connected to the upper belt gear 420, and the other end thereof is respectively connected to the shaft 21 of the two rope reels 100.

[0058] When the user needs to adjust the blinds, they apply force through the outer controller. Since the outer controller is connected to the inner controller 450 by magnetic attraction, the user's force is transmitted to the inner controller 450. The inner controller 450 then drives the belt 440 to rotate, and the rack of the belt 440 is closely matched with the lower belt gear 430, transmitting the rotation force to the lower belt gear 430. The rotation of the lower belt gear 430 drives the upper belt gear 420 to rotate, because the upper belt gear 420 is connected to one end of the shaft 410. The rotation of the shaft 410 is ultimately transmitted to the two cord reels 100, causing them to rotate according to the user's wishes, thereby controlling the lifting or flipping of the blind 300.

[0059] The lower belt gear can be replaced with a lower roller and a connecting rope. The lower roller is rotatably positioned within the housing. One end of the belt is connected to one end of the connecting rope. The connecting rope passes around the lower roller and is then connected to the lower end of the inner controller. The upper end of the inner controller is connected to the other end of the belt, thus forming a closed loop.

[0060] In a preferred embodiment of the present utility model, the upper belt gear 420 includes an integrally formed large-diameter gear and a small-diameter gear. The centers of the large-diameter gear and the small-diameter gear are coaxial. The belt 440 can be selectively engaged with either the large-diameter gear or the small-diameter gear.

[0061] When the belt 440 is engaged with the large-diameter gear, since the radius of the large-diameter gear is larger, the belt 440 needs to move a longer distance to complete one full rotation. This means that when the outer controller moves, it needs to travel a longer stroke to drive the rope winder 100 to complete one full lifting and lowering action. On the contrary, when the belt 440 is engaged with the small-diameter gear, since the radius of the small-diameter gear is smaller, the belt 440 needs to move a shorter distance to complete one full rotation. Therefore, when the outer controller moves, it only needs to travel a shorter stroke to drive the rope winder 100 to complete one full lifting and lowering action. In summary, the present utility model can flexibly adjust the stroke of the outer controller according to actual needs.

[0062] In a preferred embodiment of the present utility model, the louver curtain 300 includes a set of louver blades 310, a ladder rope, and a pull rope 320. The ladder rope connects the blades in series. One end of the ladder rope passes through the ladder rope through-hole and is connected to the ladder rope fixing portion 311 on the collar 31. The pull rope 320 is longitudinally intertwined with the ladder rope, and one end thereof passes through the pull rope through-hole and is then wound around the shaft cover 22. The ladder rope includes two side ropes connected to form a closed loop and a set of cross bars connecting the two side ropes. The pull rope 320 is intertwined with the cross bars and rises, and is limited within the ladder rope by the side ropes.

[0063] When the collar 31 rotates, the blades of the louver are driven to flip through the ladder rope, thereby adjusting the light transmittance of the louver. The series connection design of the ladder rope ensures that the blades can flip synchronously. When the rope winding shaft 20 rotates, the blades of the louver are driven to rise or fall by winding or unwinding the pull rope 320. The intertwined design of the pull rope 320 and the cross bars and the limiting effect of the side ropes ensure the stability and smoothness of the blades during the lifting and lowering process. The design of the two side ropes and the cross bars of the ladder rope forms a stable closed-loop structure, which can effectively support and connect the blades to prevent the blades from shaking or falling off during the flipping or lifting and lowering process. The intertwined design of the pull rope 320 and the cross bars and the rotation control of the rope winding shaft 20 achieve flexible adjustment of the blade lifting, meeting the requirements of different usage scenarios.

[0064] In a preferred embodiment of the present invention, the inner manipulator 450 includes a base 4510, an upper roller 4520, a lower roller 4530 and a magnet 4540; a first mounting cavity 4511 is provided at the upper portion of the outer side surface of the base 4510, a second mounting cavity 4512 is provided at the lower portion of the outer side surface of the base 4510, and a third mounting cavity 4513 is provided at the middle portion of the outer side surface of the base 4510; the upper roller 4520 is rotatably mounted in the first mounting cavity 4511; the lower roller 4530 is rotatably mounted in the second mounting cavity 4512; and the magnet 4540 is mounted in the third mounting cavity 4513;

[0065] Specifically, a spring installation slot 4514 is provided on the right side of the base 4510, a first rope threading hole 45141 is provided on the top wall of the spring installation slot 4514, and a second rope threading hole 45142 is provided on the bottom wall of the spring installation slot 4514;

[0066] Specifically, a first elastic component 4550, a second elastic component 4560, a first connecting rope 4570 and a second connecting rope 4580 are installed in the spring mounting groove 4514; the first elastic component 4550 is connected to the first end of the first connecting rope 4570, and the second end of the first connecting rope 4570 is suitable for passing through the first rope threading hole 45141 to be connected to the first end of the belt; the second elastic component 4560 is connected to the second end of the second connecting rope 4580, and the second end of the second connecting rope 4580 is suitable for passing through the second rope threading hole 45142 to be connected to the second end of the belt.

[0067] On the basis of the above structure, in the hollow glass built-in blinds, the belt is a key component of the transmission mechanism, which is responsible for transmitting the user's operating force to the rope winding mechanism, thereby driving the lifting and flipping of the blinds. However, the tension of the belt has an important influence on the transmission effect. When the belt is subjected to tension, the first elastic component 4550 and the second elastic component 4560 will automatically adjust their compression degree according to the magnitude of the tension, thereby generating a corresponding reaction force. This reaction force is balanced with the tension of the belt, ensuring that the tension of the belt is always maintained within an appropriate range, thereby avoiding the occurrence of tooth jumping. At the same time, the design also improves the assembly efficiency of the staff and reduces the requirements for the installation strength of the staff.

[0068] In a preferred embodiment of the present utility model, the first elastic component includes a first spring and a first connecting plug. The first connecting plug includes a first abutting portion and a first inserting portion axially extending from one side of the first abutting portion. The radius of the first abutting portion is greater than the outer diameter of the first spring, and the radius of the first inserting portion is less than the inner diameter of the first spring. The first end of the first spring is connected to the top wall of the spring mounting groove, and its second end is sleeved outside the first inserting portion and abuts against the first abutting portion. The first end of the first connecting rope is connected to the first abutting portion, and its second end sequentially passes through the first spring and the first rope passing hole and is connected to the first end of the belt.

[0069] Based on the above structure, when the belt is subjected to a tensile force, the tensile force will be transmitted to the first abutting portion through the first connecting rope, and then a compressive effect will be exerted on the first spring. Since the first spring has elasticity, it will automatically adjust its compression degree according to the magnitude of the tensile force, thereby generating a corresponding reaction force. This reaction force balances the tensile force of the belt, ensuring that the tension of the belt always remains within an appropriate range. The design of the first connecting plug not only provides a stable support point for the first spring but also ensures that the first spring can be firmly sleeved outside the first inserting portion through its special structural shape. This design enables the first spring not to shift or deform when being compressed, thus ensuring the stability and reliability of its elastic effect. Due to the stable cooperation of the first spring and the first connecting plug, the belt can maintain a stable tension during transmission. This stable tension reduces the friction between the belt and the upper belt gear or the lower belt gear, making the transmission smoother. At the same time, it also avoids the occurrence of tooth skipping phenomenon, improving the transmission effect and service reliability.

[0070] The structure of the second elastic component is the same as that of the first elastic component, and will not be elaborated herein.

[0071] Although only some components and embodiments of the present application have been illustrated and described, many modifications and changes can be conceived by those skilled in the art without actually departing from the scope and spirit of the claims, such as changes in the size, dimensions, structure, shape and ratio, installation arrangement, material use, color, orientation, etc. of each element.

[0072] The above-mentioned embodiments are only the preferred embodiments of the present utility model and cannot be used to limit the scope of protection of the present utility model. Any non-substantive changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A cord reel, characterized in that, include: A rope winding seat, the rope winding seat comprising a bottom wall and a support wall extending vertically upward from the bottom wall, the support wall being provided with a bearing mounting hole, a bearing being mounted in the bearing mounting hole; the bottom wall being provided with a ladder rope threading hole and a pull rope threading hole; A rope winding shaft, the rope winding shaft comprising a hollow shaft and a shaft cover, one end of the shaft is formed with a conical recessed portion, the middle portion of the conical recessed portion extends axially outward to form a hollow pivot rod, one end of the pivot rod is connected to the bearing; the other end of the shaft is connected to the shaft cover, and the shaft cover is provided with a rope fixing hole; A shaft sleeve assembly, the shaft sleeve assembly includes a ring and a spring, the ring is provided with a ladder rope fixing portion, one end of the ring is formed with a conical matching portion, and the ring is sleeved on the pivot rod; the spring is sleeved on the pivot rod, one end of the spring abuts against the inner wall of the support wall, and the other end of the spring abuts against the ring, so that the conical matching portion of the ring forms a tight conical contact with the conical recessed portion.

2. The cable winder according to claim 1, characterized in that, The shaft rod includes a conical guide section with a gradually decreasing radius and a cylindrical winding section. The maximum radius end of the conical guide section is located on the side adjacent to the pivot rod, the minimum radius end of the conical guide section is smoothly connected to the cylindrical winding section, and the maximum radius end of the conical guide section is formed with a retaining edge.

3. The cord reel according to claim 1, characterized in that, It also includes a stop structure, which includes a stop protrusion arranged on the inner wall of the support wall, and a stop portion arranged at one end of the ring; the shaft drives the stop ring to rotate clockwise or counterclockwise, and when the stop portion rotates clockwise to contact the first end of the stop protrusion, it is limited by the stop protrusion, so that the blade flips to the light-shielding state; when the stop portion rotates counterclockwise to contact the second end of the stop protrusion, it is limited by the stop protrusion, so that the blade flips to the light-transmitting state.

4. The winch according to claim 2, characterized in that, The outer surface of the cylindrical winding segment is provided with a plurality of axial grooves.

5. The cord reel according to claim 1, wherein Two elastic clamping arms are formed at one end of the pivot rod, and the two elastic clamping arms are buckled and connected with the inner ring of the bearing.

6. The cord rewinder according to claim 1, characterized in that, The shaft cover is provided with a locking hole which penetrates in the radial direction, and the shaft cover is provided with a plug-in hole which penetrates in the axial direction.

7. A hollow glass built-in blind, comprising a frame body with a blind curtain cavity in the middle and a blind curtain arranged in the blind curtain cavity of the frame body, characterized in that, It also includes two rope winders as described in any one of claims 1 to 6 and a transmission mechanism for controlling the rotation of the two rope winders, and the venetian blind is connected to the two rope winders respectively.

8. The built-in blind for insulating glass according to claim 7, wherein The transmission mechanism includes a rotating shaft, an upper belt gear, a lower belt gear, a belt with a rack, an inner controller and an outer controller; The upper belt gear and the lower belt gear are rotatably positioned in the frame respectively, the belt is meshed with the upper belt gear and the lower belt gear respectively, the two ends of the belt are respectively connected to the two ends of the inner manipulator to form a closed loop, and the outer manipulator is connected to the inner manipulator in a magnetic manner; one end of the rotating shaft is connected to the upper belt gear, and the other end thereof is respectively connected to the shaft rods of the two rope reels for transmission.

9. The built-in blind for insulating glass according to claim 8, characterized in that, The upper belt gear comprises an integrally formed large-diameter gear and a small-diameter gear, the centers of the large-diameter gear and the small-diameter gear are coaxial, and the belt can selectively cooperate with any one of the large-diameter gear and the small-diameter gear.

10. The built-in blind for insulating glass according to claim 9, characterized in that, The inner controller includes a base, an upper roller, a lower roller and a magnet; a first installation cavity is provided in the upper part of the outer side surface of the base, a second installation cavity is provided in the lower part of the outer side surface of the base, and a third installation cavity is provided in the middle of the outer side surface of the base; the upper roller is rotatably installed in the first installation cavity; the lower roller is rotatably installed in the second installation cavity; the magnet is installed in the third installation cavity; a spring installation groove is provided on the right side surface of the base, a first rope-passing hole is opened on the top wall of the spring installation groove, and a second rope-passing hole is opened on the bottom wall of the spring installation groove; a first elastic component, a second elastic component, a first connecting rope and a second connecting rope are installed in the spring installation groove; the first elastic component is connected to the first end of the first connecting rope, and the second end of the first connecting rope is adapted to pass through the first rope-passing hole and be connected to the first end of the belt; the second elastic component is connected to the second end of the second connecting rope, and the second end of the second connecting rope is adapted to pass through the second rope-passing hole and be connected to the second end of the belt.

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