A curtain cord take-up device capable of switching segment control

Abstract

The present invention discloses a curtain cord take-up device with switchable segmented control, comprising a curtain box, wherein two horizontally movable winding rods are provided in the curtain box, wherein the winding rods are connected to curtain cables for adjusting curtain panels, wherein the end of one winding rod on the right side is connected to a switching assembly, wherein one end of the switching assembly is connected to a cable drive wheel, and the other end of the switching assembly is connected to a driving guide rod, wherein the driving guide rod is connected to a driving assembly, and the driving assembly is connected to another winding rod on the left side. The beneficial effects of the present invention are: it can ensure that the wire of the winding rod can be tightly wound around the winding rod, ensuring the winding effect, and ensuring that the curtain can be stably raised, lowered, opened and closed; it enables segmented control of the curtain, and makes operation simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field related to curtains, and in particular to a curtain cord take-up device capable of switchable segmented control. Background Art

[0002] Curtain lifting mechanisms often utilize a reel-and-wind curtain cord to achieve the desired opening and closing. Existing curtains often feature multiple curtain panels arranged side by side. To control the opening and closing of these panels, most utilize a single winding rod to simultaneously raise and lower multiple panels, or a dual winding rod with pull cords at each end. Curtains using a single winding rod are difficult to operate due to the heavy weight of the individual panels, making it difficult to pull the cords and achieving segmented control. Furthermore, dual winding rods with pull cords require operators to move to different locations to control the opening and closing of the curtain panels, making operation complex, unilateral operation impossible, and time-consuming and labor-intensive. Summary of the Invention

[0003] The present invention aims to overcome the shortcomings of the prior art in that segmented control cannot be achieved and the operation is complicated, and provides a curtain cord take-up device with switchable segmented control that can achieve segmented control and conveniently control the raising and lowering of curtains.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a curtain wire take-up device with switchable segmented control, comprising a curtain box, wherein two horizontally movable winding rods are provided in the curtain box, and the winding rods are connected to the curtain wires for adjusting the curtain pieces, wherein the end of one of the winding rods on the right is connected to a switching assembly, one end of the switching assembly is connected to a rope drive wheel, and the other end of the switching assembly is connected to a drive guide rod, and the drive guide rod is connected to a drive assembly, and the drive assembly is connected to the other winding rod on the left.

[0005] The curtain box is equipped with two horizontally movable winding rods connected to curtain cables, which are used to adjust the curtains. The right-hand winding rod has a switch assembly connected to its end, which is in turn connected to a pull-cord drive wheel. The other end of the switch assembly is connected to a drive guide rod, which is connected to the drive assembly. This drive assembly is also connected to the left-hand winding rod. The pull-cord drive wheel is connected to a pull cord that controls the opening and closing of the curtains. To control the opening and closing of the curtains, the pull cord rotates the pull-cord drive wheel, causing one of the winding rods to rotate, winding the curtain cable around the rod and controlling the opening and closing of the curtain blades. Simultaneously, the switch assembly can be adjusted to switch to controlling the rotation of the other winding rod, enabling segmented control of the curtains. Furthermore, a single pull-cord drive wheel, positioned at one end of the curtain box, can be used to control the raising and lowering of curtain blades at different locations. This eliminates the need for movement to control the raising and lowering of curtain blades at different locations, ensuring simple and convenient operation.

[0006] Preferably, the outer wall of the winding rod is provided with a mounting groove, a wire fixing ring is sleeved on the winding rod, and a wire fixing block is provided on the inner wall of the wire fixing ring. The wire fixing block is embedded in the mounting groove, and the curtain cord is positioned between the wire fixing block and the mounting groove. The mounting groove is provided on the winding rod, and the wire fixing ring is sleeved on the winding rod. The wire fixing block provided on the inner wall of the wire fixing ring can press the curtain cord into the mounting groove for fixation, thereby ensuring a stable installation of the curtain cord. At the same time, the wire fixing ring is movable on the winding rod to accommodate the installation of curtain cords of different lengths, thus providing good versatility and convenient and simple installation and operation.

[0007] Preferably, a fixing frame is provided in the curtain box, a mounting ring is provided above the fixing frame, the mounting ring is sleeved with the winding rod, a clearance hole is provided below the fixing frame, the clearance hole is sleeved with the driving guide rod, and a wire hole is provided at the bottom of the fixing frame, through which the curtain wire passes to connect with the curtain blade. The mounting ring provided on the fixing frame serves to stabilize the installation of the winding rod, the clearance hole provided below the fixing frame serves as a sleeve position for the driving guide rod, ensuring stable installation of the driving guide rod, and the wire hole provided as a passage hole for the curtain wire ensures that the curtain wire can be stably connected to the curtain blade. At the same time, when the winding rod is wound, the curtain wire can be kept in a stable vertical state, ensuring that the curtain can be stably raised and lowered.

[0008] Preferably, a nut is sleeved on the end of the winding rod near the switching assembly, and a threaded tube is sleeved on the winding rod, the threaded tube is connected to the nut, and a connecting platform is provided on the inner wall of the winding rod end, the connecting platform is sleeved on a rectangular connecting rod, and the connecting rod is connected to the switching assembly. The nut is installed on the winding rod near the switching assembly, and a threaded tube is connected to the winding rod, and the threaded tube and the nut can be threadedly connected. At the same time, the connecting platform connected inside the winding rod is connected to the connecting rod, and the connecting rod is connected to the switching assembly. By adjusting the switching assembly, the pull rope driving wheel can rotate while driving the connecting rod to rotate. Under the action of the connection between the nut and the threaded tube, the winding rod can be moved horizontally to realize the winding operation of the winding rod. Due to the cooperation between the threaded tube and the nut, the movement feed of the winding rod is stable, ensuring that the curtain wire can be tightly wound on the winding rod during winding, ensuring the normal winding function, and ensuring that the curtain piece can be stably moved up and down to open and close.

[0009] Preferably, the switching assembly includes a mounting seat, and a left connecting block, a right connecting block and an adjustment block arranged in the mounting seat, the adjustment block is placed between the left connecting block and the right connecting block and the adjustment block corresponds to the left connecting block and the right connecting block respectively, the left connecting block is connected to connecting rod one, the adjustment block is connected to connecting rod two, the right connecting block is sleeved with connecting rod two, and the connecting rod two is connected to the pull rope drive wheel. The switching assembly consists of a mounting base, a left connecting block and a right connecting block, both of which are arranged in the mounting base. At the same time, an adjustment block that can move left and right is provided between the left connecting block and the right connecting block. By adjusting the adjustment block, the adjustment block can be connected to the left connecting block and the right connecting block respectively, and wherein the left connecting block is connected to the connecting rod one, and the right connecting block is connected to the connecting rod two. At the same time, the connecting rod two is connected to the rope driving wheel. When the rope driving wheel is pulled, the adjusting block can be driven to rotate through the connecting rod two. When the adjusting block is connected to the left connecting block, the winding rod arranged on the right side is driven to rotate. When the adjusting block is connected to the right connecting block, the winding rod arranged on the left side is driven to rotate, and then the left and right movement of the adjusting block can realize the segmented control of the curtain, which makes the operation simple and convenient.

[0010] Preferably, the end faces of the left and right connecting blocks are each provided with a plurality of connecting posts, and stop posts are provided at both ends of the adjustment block, the stop posts corresponding to the connecting posts. The adjustment block is provided with a plurality of stop posts, and the left and right connecting blocks are provided with a plurality of connecting posts. When the adjustment block moves leftward or rightward, the stop posts and the connecting posts are interlaced and plugged into each other, thereby connecting the adjustment block to the left or right connecting block, achieving the adjustment function, and further realizing segmented control of the curtain, making operation simple and convenient.

[0011] Preferably, the outer wall of the right connecting block is provided with a right driving gear, the right driving gear is connected to the right connecting gear, the right connecting gear is connected to one end of the driving connecting rod, the driving assembly includes a left connecting gear and a left driving gear, the other end of the driving guide rod is connected to the left connecting gear, the side wall of the driving guide rod is provided with a guide groove, the inner wall of the left connecting gear is provided with a guide block, the guide block is embedded in the guide groove, the left connecting gear is meshed with the left driving gear, the left driving gear is connected to the winding rod away from the driving assembly, the end of the winding rod away from the driving assembly is sleeved with nut 2 and nut 2 is sleeved with threaded tube 2, the threaded tube 2 is connected to a stabilizing block, and the stabilizing block is connected to the curtain box. The right driving gear arranged on the outside of the right connecting block is connected with the right connecting gear, and the right connecting gear is connected to the driving guide rod. Through the cooperation of the right driving gear and the right connecting gear, the driving guide rod can be driven to rotate. The other end of the driving guide rod is connected with the left connecting gear. At the same time, the left connecting gear is connected to the left driving gear, and the left driving gear is connected to the winding rod on the left, so as to drive the rotation of the winding rod on the left. The end of the winding rod on the left is sleeved with nut 2, and the nut 2 is sleeved with threaded tube 2, so that the winding rod can synchronously perform horizontal feeding when rotating. Due to the cooperation of threaded tube 2 and nut 2, the movement feed amount of the winding rod is stable, ensuring that the curtain wire can be tightly wound on the winding rod during winding, ensuring the normal winding function, and ensuring that the curtain piece can stably move up and down to open and close.

[0012] Preferably, the mounting seat is connected to a mounting shaft, the mounting shaft is sleeved with a switching block, the outer wall of the switching block is provided with a plurality of arc-shaped adjustment blocks, the plurality of adjustment blocks are connected end to end to form a closed loop, and the closed loop is unfolded in a sine curve shape, the adjustment block is provided with an adjustment slot, and the adjustment block is placed in the adjustment slot. The mounting shaft is connected in the mounting seat, the mounting shaft is sleeved with the switching block, wherein the switching block can rotate around the mounting shaft, the plurality of arc-shaped adjustment blocks provided on the switching block are connected end to end to form a closed loop, and the closed loop is unfolded in a sine curve shape, and an adjustment slot is provided on the side wall of the adjustment block, the adjustment block is connected to the adjustment slot, and when the switching block rotates, the adjustment block can cause the adjustment slot to swing left and right, thereby realizing horizontal movement of the adjustment block, thereby realizing the adjustment function of the adjustment block, thereby realizing the control of different winding rods to rotate and wind, so that the curtain can be controlled in sections, making the operation simple and convenient.

[0013] Preferably, the switching block is provided with a switching piece on its side surface, one end of which is connected to a switching cable, the other end of which is sleeved with a mounting shaft, and a torsion spring is connected between the switching piece and the mounting shaft, and the side wall of the switching block end is provided with a plurality of evenly spaced adjustment protrusions, and the side wall of the switching piece is provided with a limit protrusion, and the limit protrusion corresponds to the adjustment protrusion. A switching piece is provided on the side of the switching block, one end of which is connected to the switching cable, the other end of which is sleeved with a mounting shaft, and a torsion spring is connected between the mounting shaft, and the switch block is provided with a plurality of evenly spaced adjustment protrusions, and a limit protrusion is provided on the side wall of the switching piece, and the limit protrusion contacts the adjustment protrusion. By pulling the switching cable, the switching piece is driven to rotate by the collision between the limit protrusion and the adjustment protrusion, thereby controlling the left and right movement of the adjustment block, realizing the adjustment function of the adjustment block, and further controlling the rotation and winding of different winding rods, so that the curtain can be controlled in sections, making operation simple and convenient.

[0014] Preferably, a stop groove is provided at the end of the adjustment block, and the mounting seat is provided with an arcuate stop piece, which engages with the stop groove. The stop groove provided at the end of the adjustment block can be connected to the arcuate stop piece connected to the inner wall of the mounting groove. When the adjustment block rotates a certain angle with the adjustment block, the stop piece engages with the stop groove, realizing the adjustment limit of the adjustment block, ensuring that the adjustment action of the adjustment block is completed, and then controlling the rotation of the pull rope drive wheel to drive the rotation of the adjustment block, thereby realizing the subsequent driving rotation of the adjustment block and completing the winding operation of the winding rod, thereby realizing the control of the rotation and winding of different winding rods, so that the curtain can be controlled in sections, making the operation simple and convenient.

[0015] The beneficial effects of the present invention are as follows: when the winding rod is winding the curtain wire, the threaded connection structure cooperates with the winding rod to enable the winding rod to move in the horizontal direction when winding the curtain wire, which can ensure that the wire of the winding rod can be tightly wound on the winding rod, ensuring the winding effect, and ensuring that the curtain can be stably raised and lowered and opened; when the adjusting block is connected to the left connecting block, it drives the winding rod arranged on the right to rotate, and when the adjusting block is connected to the right connecting block, it drives the winding rod arranged on the left to rotate, thereby realizing the simultaneous left and right movement of the adjusting block to realize segmented control of the curtain, making operation simple and convenient; when the switching block rotates, the adjusting block can make the adjusting slot swing left and right, thereby realizing horizontal movement of the adjusting block, thereby realizing the adjustment function of the adjusting block, thereby realizing controlling different winding rods to rotate and winding, so that the curtain can be segmented controlled, making operation simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the present invention;

[0017] Figure 2 is a cross-sectional view of the present invention;

[0018] Figure 3 The present invention is a stereoscopic fixed frame Figure 1 ;

[0019] Figure 4 The present invention is a stereoscopic fixed frame Figure 2 ;

[0020] Figure 5 This is a three-dimensional view of the mounting seat of the present invention;

[0021] Figure 6 This is a three-dimensional view of the driving component of the present invention;

[0022] Figure 7 It is a three-dimensional view of the internal structure of the switching component in the present invention.

[0023] Attached photos

[0024] 1. Curtain box, 2. Winding rod, 3. Curtain cable, 4. Switch assembly, 5. Cable drive wheel, 6. Drive guide rod, 7. Drive assembly, 10. Fixing bracket, 11. Mounting ring, 12. Clearance hole, 13. Cable hole, 20. Mounting slot, 21. Cable fixing ring, 22. Cable fixing block, 23. Nut 1, 24. Threaded tube 1, 25. Connecting platform, 26. Connecting rod 1, 27. Nut 2, 28. Threaded tube 2, 29. Stabilizing block, 40. Mounting base, 41. Left connecting block, 42. Right connecting block Block, 43. Adjustment block, 44. Connecting rod 2, 45. Connecting column, 46. Stop column, 47. Right drive gear, 48. Right connecting gear, 60. Guide groove, 70. Left connecting gear, 71. Left drive gear, 72. Guide block, 400. Mounting shaft, 401. Switching block, 402. Adjustment block, 403. Adjustment groove, 404. Switching piece, 405. Switching cable, 406. Torsion spring, 407. Adjustment bump, 408. Limiting bump, 409. Stop groove, 410. Stop piece. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only some of the embodiments of this application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments in this application without making any creative efforts are within the scope of protection of this application.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement of the parts, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0028] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0029] Example 1, as Figure 1-7 As shown, a curtain wire take-up device with switchable segmented control includes a curtain box 1, in which two horizontally movable winding rods 2 are provided, and the winding rods 2 are connected to curtain pull wires 3 for adjusting the curtain pieces, wherein the end of one of the winding rods 2 on the right is connected to a switching component 4, one end of the switching component 4 is connected to a pull rope driving wheel 5, and the other end of the switching component 4 is connected to a driving guide rod 6, and the driving guide rod 6 is connected to a driving component 7, and the driving component 7 is connected to the other winding rod 2 on the left.

[0030] An installation groove 20 is provided on the outer wall of the winding rod 2, and a wire fixing ring 21 is sleeved on the winding rod 2. A wire fixing block 22 is provided on the inner wall of the wire fixing ring 21. The wire fixing block 22 is embedded in the installation groove 20 and the curtain pull wire 3 is placed between the wire fixing block 22 and the installation groove 20.

[0031] A fixing frame 10 is provided in the curtain box 1, and a mounting ring 11 is provided above the fixing frame 10. The mounting ring 11 is sleeved with the winding rod 2. A clearance hole 12 is provided below the fixing frame 10. The clearance hole 12 is sleeved with the driving guide rod 6. A wire hole 13 is provided at the bottom of the fixing frame 10, and the curtain wire 3 passes through the wire hole 13 to be connected to the curtain piece.

[0032] The end of the winding rod 2 near the switching component 4 is sleeved with a nut 23 and the winding rod 2 is sleeved with a threaded tube 24, the threaded tube 24 is connected to the nut 23, and the inner wall of the end of the winding rod 2 is provided with a connecting platform 25, the connecting platform 25 is sleeved with a rectangular connecting rod 26, and the connecting rod 26 is connected to the switching component 4.

[0033] The switching assembly 4 includes a mounting seat 40, and a left connecting block 41, a right connecting block 42 and an adjustment block 43 arranged in the mounting seat 40, the adjustment block 43 is placed between the left connecting block 41 and the right connecting block 42 and the adjustment block 43 corresponds to the left connecting block 41 and the right connecting block 42 respectively, the left connecting block 41 is connected to the connecting rod 1 26, the adjustment block 43 is connected to the connecting rod 2 44, the right connecting block 42 is adjusted with the connecting rod 2 44, and the connecting rod 2 44 is connected to the rope drive wheel 5.

[0034] The end faces of the left connecting block 41 and the right connecting block 42 are both provided with a plurality of connecting posts 45 , and both ends of the adjusting block 43 are respectively provided with stop posts 46 , which correspond to the connecting posts 45 .

[0035] A right driving gear 47 is provided on the outer wall of the right connecting block 42, and the right driving gear 47 is connected to the right connecting gear 48. The right connecting gear 48 is connected to one end of the driving guide rod 6. The driving assembly 7 includes a left connecting gear 70 and a left driving gear 71. The other end of the driving guide rod 6 is connected to the left connecting gear 70. The side wall of the driving guide rod 6 is provided with a guide groove 60, and the inner wall of the left connecting gear 70 is provided with a guide block 72. The guide block 72 is embedded in the guide groove 60. The left connecting gear 70 is meshed with the left driving gear 71. The left driving gear 71 is connected to the winding rod 2 away from the driving assembly 7. The end of the winding rod 2 away from the driving assembly 7 is sleeved with a nut 27 and the nut 27 is sleeved with a threaded tube 28. The threaded tube 28 is connected to a stabilizing block 29, and the stabilizing block 29 is connected to the curtain box 1.

[0036] The mounting seat 40 is connected to a mounting shaft 400 , and the mounting shaft 400 is sleeved with a switching block 401 . The outer side wall of the switching block 401 is provided with a plurality of arc-shaped adjustment blocks 402 . The adjustment block 43 is provided with an adjustment slot 403 , and the adjustment block 402 is placed in the adjustment slot 403 .

[0037] A switching piece 404 is provided on the side end face of the switching block 401, one end of the switching piece 404 is connected to a switching pull wire 405, the other end of the switching piece 404 is socketed with the mounting shaft 400 and a torsion spring 406 is connected between the switching piece 404 and the mounting shaft 400, and the side wall of the end of the switching block 401 is provided with a number of evenly arranged adjustment protrusions 407, and the side wall of the switching piece 404 is provided with a limiting protrusion 408, and the limiting protrusion 408 corresponds to the adjustment protrusion 407.

[0038] A stop groove 409 is provided at the end of the adjustment block 402 , and the mounting seat 40 is provided with an arc-shaped stop piece 410 , which is engaged with the stop groove 409 .

[0039] The working principle of the present invention is as follows: Figure 1-7 As shown, a fixing frame 10 is installed in the curtain box 1, and a mounting ring 11 is provided on the fixing frame 10. The mounting ring 11 is sleeved with the winding rod 2 to ensure the stable installation of the winding rod 2. The outer wall of the winding rod 2 is provided with a mounting groove 20, and the fixing ring is sleeved on the winding rod 2. A wire fixing block 22 is provided on the inner wall of the fixing ring. The wire fixing block 22 can fix the curtain cable 3 in the mounting groove 20 to ensure the stable installation of the curtain cable 3. At the same time, the wire fixing ring 21 can be moved on the winding rod 2 to meet the installation requirements of curtain cables 3 of different lengths. In other words, it has good versatility and is easy to install and operate.

[0040] The fixing frame 10 is provided with a clearance hole 12, which serves as a mounting hole for the driving guide rod 6, providing a mounting position for the driving guide rod 6 and ensuring the transmission function of the driving guide rod 6. A wire hole 13 is provided at the bottom of the fixing frame 10, which serves as a passage hole for the curtain wire 3. When the curtain is pulled down, it passes through the wire hole 13 and connects to the curtain piece, ensuring that the curtain wire 3 can be stably connected to the curtain blade. At the same time, when the winding rod 2 is winding, the curtain wire 3 can be kept in a stable vertical state, ensuring that the curtain can be stably raised and lowered.

[0041] Among them, a nut 23 is sleeved on the end close to the switching component 4, and a threaded tube 24 is sleeved on this end, the threaded tube 24 and the nut 23 are connected, and a connecting platform 25 is connected to the inner wall of the winding rod 2, and the connecting platform 25 is connected to a connecting rod 26 with a rectangular cross-section.

[0042] The switching assembly 4 includes a mounting base 40, which is mounted within the curtain box 1. Within the mounting base 40 are disposed a left connecting block 41, a right connecting block 42, and an adjustment block 43, with the adjustment block 43 positioned between the left and right connecting blocks 41 and 42. The left connecting block 41 is connected to the connecting rod 1 26, which passes through the winding rod 2 and the threaded tube 1 24. The adjustment block 43 is connected to the connecting rod 2 44, which passes through the right connecting block 42 and is connected to the pull-rod drive wheel 5. Rotation of the pull-rod drive wheel 5 drives the adjustment block 43 to rotate. Within the mounting base 40 is a mounting shaft 400, which is parallel to the connecting rod 2 44. The switching block 401 is sleeved on the mounting shaft 400. Several arc-shaped adjustment blocks 402 are disposed on the outer wall of the switching block 401. These adjustment blocks 402 are connected end to end to form a closed ring structure, and the expanded view of the closed ring structure forms a sinusoidal curve. An adjustment slot 403 is provided in the middle of the side wall of the adjustment slot, and the adjustment block 402 is placed in the adjustment slot 403 and in contact with the adjustment slot 403. A switching piece 404 is provided on the side of the switching block 401. One end of the switching piece 404 is connected to the switching pull rope, and the other end is sleeved on the mounting shaft 400. At the same time, a torsion spring 406 is sleeved on the mounting shaft 400. One end of the torsion spring 406 is connected to the mounting shaft 400, and the other end is connected to the switching piece 404. This makes the switching piece 404 and the mounting shaft 400 elastically connected. A limiting protrusion 408 is provided on the side wall of the switching piece 404 facing the switching block 401. At the same time, a number of evenly arranged adjustment protrusions 407 are provided on the side wall of the switching block 401, and the limiting protrusions 408 are in contact with the adjustment protrusions 407. When the switching piece 404 is pulled, the limiting protrusion 408 contacts the adjustment protrusion 407 and drives the switching block 401 to rotate. At this time, the adjustment block 402 set on the switching block 401 slides relative to the adjustment groove 403. Since the adjustment groove 403 is arc-shaped, when it contacts the adjustment groove 403, the adjustment block 43 will move horizontally. At the same time, since the unfolded diagram of the closed loop formed by the adjustment block 402 is a sine curve, when the contact point between the adjustment block 402 and the adjustment groove 403 moves from the crest of the sine curve to the trough, the adjustment block 43 is pushed toward the right connecting block 42. Similarly, when the contact point between the adjustment block 402 and the adjustment groove 403 moves from the trough to the crest of the sine curve, the adjustment block 43 can be pushed toward the left connecting block 41.

[0043] Furthermore, a stop groove 409 is provided at the end of the adjustment block 402. At the same time, a stop piece 410 is installed on the inner wall of the mounting seat 40. The stop piece 410 is arc-shaped and elastic. When the adjustment block 402 interacts with the adjustment groove 403 so that the adjustment block 43 is connected to the left connecting block 41 or the right connecting block 42, the stop piece 410 is engaged with the stop groove 409 to realize the state locking after the switching of the segmented control of the curtain, ensuring that the rotation of the adjustment block 43 after switching can drive the left connecting block 41 or the right connecting block 42 to rotate.

[0044] Furthermore, a plurality of connecting columns 45 are provided on the two opposite end faces of the left connecting block 41 and the right connecting block 42, and the plurality of connecting columns 45 are evenly arranged, wherein a plurality of evenly arranged stop columns 46 are provided on the adjustment block 43, wherein when the adjustment block 43 moves to the left or right, the stop columns 46 and the connecting columns 45 are staggered and plugged into each other, thereby realizing the connection between the adjustment block 43 and the left connecting block 41 or the right connecting block 42, realizing the adjustment function, and then realizing the segmented control of the curtain, making the operation simple and convenient.

[0045] Furthermore, a right driving gear 47 is provided on the outer side wall of the right connecting block 42, and the right driving gear 47 is connected to the right connecting gear 48. The right connecting gear 48 is connected to the driving guide rod 6. Through the cooperation of the right driving gear 47 and the right connecting gear 48, the driving guide rod 6 can be driven to rotate. The other end of the driving guide rod 6 is connected to the left connecting gear 70. At the same time, the left connecting gear 70 is connected to the left driving gear 71, and the left driving gear 71 is connected to the winding rod 2 on the left side, so as to drive the rotation of the winding rod 2 on the left side. The end of the winding rod 2 on the left side is sleeved with a nut 27, and the nut 27 is sleeved with a threaded tube 28, so that the winding rod 2 can synchronously perform horizontal feeding work when rotating. Due to the cooperation of the threaded tube 28 and the nut 27, the movement and feeding amount of the winding rod 2 is stable, ensuring that the curtain wire 3 can be tightly wound on the winding rod 2 during winding, ensuring the normal winding function and ensuring that the curtain piece can stably move up and down to open and close.

[0046] Furthermore, blocks for limiting are provided at the opposite ends of the two winding rods 2. When one of the winding rods 2 moves in the horizontal feeding direction, as the feeding amount of the movement increases, the two oppositely arranged blocks collide to realize the limiting operation.

[0047] The main working steps of the present invention are as follows: according to the opening and closing requirements of the curtain, the switching cable 405 is pulled to control the switching piece 404 to rotate the switching block 401, thereby realizing the horizontal movement of the adjustment block 43, so that the adjustment block 43 is connected to the left connecting block 41 or the right connecting block 42, and then the cable connected to the cable driving wheel 5 is pulled to rotate the cable driving wheel 5, driving the adjustment block 43 to rotate, and then realizing the rotation of the winding rod 2. Since the winding rod 2 can move horizontally under the action of the threaded connection while rotating, the winding operation is realized, thereby realizing the opening and closing control of the curtain piece.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A curtain cord take-up device with switchable segmented control, characterized in that: The invention comprises a curtain box (1), wherein two horizontally movable winding rods (2) are provided in the curtain box (1), wherein the winding rods (2) are connected to curtain pull cords (3) for adjusting curtain pieces, wherein the end of one winding rod (2) on the right side is connected to a switching assembly (4), wherein one end of the switching assembly (4) is connected to a pull cord driving wheel (5), wherein the other end of the switching assembly (4) is connected to a driving guide rod (6), wherein the driving guide rod (6) is connected to a driving assembly (7), wherein the driving assembly (7) is connected to the other winding rod (2) on the left side, wherein the end of the winding rod (2) close to the switching assembly (4) is sleeved with a nut (23), and the winding rod (2) is sleeved with a threaded tube (24), wherein the threaded tube (24) is connected to the nut (23). The inner wall of the end of the winding rod (2) is provided with a connecting platform (25), the connecting platform (25) is sleeved with a rectangular connecting rod (26), the connecting rod (26) is connected to the switching assembly (4), the switching assembly (4) includes a mounting seat (40), and a left connecting block (41), a right connecting block (42) and an adjusting block (43) arranged in the mounting seat (40), the adjusting block (43) is placed between the left connecting block (41) and the right connecting block (42) and the adjusting block (43) corresponds to the left connecting block (41) and the right connecting block (42), respectively, the left connecting block (41) is connected to the connecting rod (26), the adjusting block (43) is connected to the connecting rod (24), the right connecting block (42) is connected to the connecting rod (44), and the adjusting block (43) is connected to the connecting rod (44). ) sleeved, the connecting rod 2 (44) is connected to the rope drive wheel (5), the end faces of the left connecting block (41) and the right connecting block (42) are both provided with a plurality of connecting columns (45), and the two ends of the adjusting block (43) are respectively provided with stop columns (46), and the stop columns (46) correspond to the connecting columns (45), and the outer wall of the right connecting block (42) is provided with a right driving gear (47), and the right driving gear (47) is connected to the right connecting gear (48), and the right connecting gear (48) is connected to one end of the driving guide rod (6), and the driving assembly (7) includes a left connecting gear (70) and a left driving gear (71), and the other end of the driving guide rod (6) is connected to the left connecting gear (70), and the driving guide rod ( 6) A guide groove (60) is provided on the side wall, a guide block (72) is provided on the inner wall of the left connecting gear (70), the guide block (72) is embedded in the guide groove (60), the left connecting gear (70) is meshed and connected with the left driving gear (71), the left driving gear (71) is connected to the winding rod (2) away from the driving assembly (7), the end of the winding rod (2) away from the driving assembly (7) is sleeved with a nut 2 (27), and the nut 2 (27) is sleeved with a threaded tube 2 (28), the threaded tube 2 (28) is connected with a stabilizing block (29), the stabilizing block (29) is connected to the curtain box (1), the mounting seat (40) is connected with a mounting shaft (400), and the mounting shaft (400) is sleeved with a switching block (401),The outer side wall of the switching block (401) is provided with a plurality of arc-shaped adjustment blocks (402), and the plurality of adjustment blocks (402) are connected end to end to form a closed loop, and the closed loop is unfolded into a sine curve. The adjustment block (43) is provided with an adjustment groove (403), and the adjustment block (402) is placed in the adjustment groove (403). The side end surface of the switching block (401) is provided with a switching piece (404), one end of the switching piece (404) is connected to a switching pull wire (405), the other end of the switching piece (404) is sleeved with the installation shaft (400), and a torsion spring (406) is connected between the switching piece (404) and the installation shaft (400). The side wall of the end of the switching block (401) is provided with a plurality of evenly arranged adjustment protrusions (407), and the side wall of the switching piece (404) is provided with a limiting protrusion (408), and the limiting protrusion (408) corresponds to the adjustment protrusion (407).

2. A curtain cord take-up device with switchable segmented control according to claim 1, characterized in that: The outer wall of the winding rod (2) is provided with a mounting groove (20), the winding rod (2) is sleeved with a wire fixing ring (21), the inner wall of the wire fixing ring (21) is provided with a wire fixing block (22), the wire fixing block (22) is embedded in the mounting groove (20), and the curtain pull wire (3) is placed between the wire fixing block (22) and the mounting groove (20).

3. The curtain cord take-up device with switchable segmented control according to claim 1, characterized in that: A fixing frame (10) is provided in the curtain box (1), a mounting ring (11) is provided above the fixing frame (10), the mounting ring (11) is sleeved with the winding rod (2), a clearance hole (12) is provided below the fixing frame (10), the clearance hole (12) is sleeved with the driving guide rod (6), a wire hole (13) is provided at the bottom of the fixing frame (10), and the curtain wire (3) passes through the wire hole (13) and is connected to the curtain piece.

4. The curtain cord take-up device with switchable segmented control according to claim 1, characterized in that: A stop groove (409) is provided at the end of the adjustment block (402), and an arc-shaped stop piece (410) is provided on the mounting seat (40), and the stop piece (410) is engaged with the stop groove (409).

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