Roller shutter

Abstract

The utility model discloses a roller shutter which comprises a positioning frame, a center shaft rod is transversely and rotationally connected to the inner side of the positioning frame, a transmission wheel is fixedly connected to one end of the center shaft rod, a transmission pull rope is assembled on the outer side of the transmission wheel, a winding roller is assembled at the bottom end of the positioning frame through a supporting assembly, and a transmission assembly is assembled between the center shaft rod and the winding roller. The transmission assembly is used for driving the wind-up roller to rotate, the outer side of the wind-up roller is fixedly connected with a cloth curtain, the supporting assembly comprises displacement frames, an assembly cylinder, an assembly plate, a supporting shaft rod, a linkage plate and a guide rod, and the two ends of the bottom of the positioning frame are both connected with the displacement frames in a sliding mode. Through the structural cooperation of the supporting assembly, the winding roller can be rapidly disassembled through separable assembly of the assembly cylinder and the winding roller so that the winding roller can be conveniently overhauled, meanwhile, a cloth curtain can be conveniently cleaned, and the whole winding device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of household decoration equipment, in particular to a rolling curtain. Background Technique

[0002] The rolling curtain has many advantages such as beautiful and simple appearance, firm and durable structure, etc. When the curtain fabric is lowered, it can make the indoor light soft, avoid the trouble of direct sunlight, and achieve a good sunshade effect. When the rolling curtain is raised, its volume is very small and it is not easy to be noticed. Therefore, it can meet the usage requirements in various places;

[0003] After retrieval, a rolling curtain with the publication number of CN215213264U can ensure that the winding speeds of both ends of the curtain cloth are consistent, and the curtain cloth will not skew when wound on the scroll, ensuring the normal use of the rolling curtain. However, there is a lack of an effective quick-release measure between the scroll and the support rod, resulting in difficulty in quickly repairing the scroll when it is damaged later, making the whole not convenient enough.

[0004] Therefore, the utility model provides a rolling curtain to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a rolling curtain to solve the above problems.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: a rolling curtain, including a positioning frame, a central shaft rod is horizontally rotatably connected to the inner side of the positioning frame, one end of the central shaft rod is fixedly connected to a transmission wheel, a transmission pulling rope is assembled outside the transmission wheel, a winding roller is assembled at the bottom end of the positioning frame through a support assembly, a transmission assembly is assembled between the central shaft rod and the winding roller, the transmission assembly is used to drive the winding roller to rotate, and a cloth curtain is fixedly connected to the outside of the winding roller.

[0007] Preferably, the support assembly includes a displacement frame, an assembly cylinder, an assembly plate, a support shaft rod, a linkage plate and a guide rod. Displacement frames are slidably connected to both ends of the bottom of the positioning frame. One end of each of the two displacement frames is fixedly connected to an assembly cylinder, and the winding roller is assembled between the two assembly cylinders. The middle of the bottom end of the positioning frame is fixedly connected to an assembly plate, the middle of the assembly plate is fixedly connected to a support shaft rod, the outside of the support shaft rod is rotatably connected to a linkage plate, both ends of the linkage plate are rotatably connected to guide rods, and the ends of the two guide rods far away from the linkage plate are respectively rotatably connected to the two displacement frames. The bottom of one end of the positioning frame is fixedly connected to an extension frame, and an anti-slip screw rod is threadedly connected to the middle of the extension frame. The end of the anti-slip screw rod located inside the extension frame is rotatably connected to an anti-slip plate.

[0008] Preferably, the transmission assembly includes a transmission spur gear, a driven spur gear, a mating lock plate and a limit seat. Transmission spur gears are fixedly connected to both ends of the outer side of the central shaft rod. Driven spur gears are fixedly connected to both ends of the outer side of the winding roller, and the two driven spur gears are respectively meshed with the two transmission spur gears. A mating lock plate is fixedly connected to one end of the central shaft rod away from the transmission wheel. Limit seats are fixedly connected to both sides of the positioning frame close to the mating lock plate. A locking shaft rod is slidably connected to the middle of the limit seat. A locking block is fixedly connected to one end of the locking shaft rod close to the mating lock plate, and the locking block is snap-connected to the mating lock plate. A helical spring is fixedly connected between the locking block and the limit seat.

[0009] Preferably, a counterweight cross bar is fixedly connected to the bottom end of the cloth curtain, and counterweight blocks are fixedly connected to both ends of the counterweight cross bar.

[0010] Preferably, a carrying groove is formed inside the assembly cylinder, and alloy balls are arranged inside the carrying groove.

[0011] Preferably, extension columns are fixedly connected to one ends of the two displacement frames close to each other, and one end of the guide rod away from the linkage plate is rotatably connected to the outside of the extension column.

[0012] Preferably, stabilizing sliding rods are slidably connected to the top end and the bottom end of the extension frame, and one end of the stabilizing sliding rod is fixedly connected to the stop plate.

[0013] Preferably, a plurality of mating lock grooves are formed on the outer side of the mating lock plate. Guide slopes are formed at both ends of each mating lock groove. A clamping block is fixedly connected to one end of the locking block. Force-receiving slopes for cooperating with the guide slopes are arranged at the top end and the bottom end of the clamping block.

[0014] Advantageous Effects

[0015] The present utility model provides a rolling curtain. Compared with the prior art, the following advantageous effects are achieved:

[0016] For this rolling curtain, through the structural cooperation of the support assembly, the winding roller can be quickly disassembled by using the detachable assembly of the assembly cylinder and the winding roller, so as to facilitate the maintenance of the winding roller and at the same time facilitate the cleaning of the cloth curtain, making the whole more convenient.

[0017] For this rolling curtain, through the structural cooperation of the transmission assembly, the effective transmission of the winding roller can be realized by using the connection between the transmission spur gear and the driven spur gear, and at the same time, the inclination of the cloth curtain during winding can be avoided. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the present utility model;

[0019] Figure 2It is a schematic diagram of the removal structure of the winding roller of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the support component of the present utility model;

[0021] Figure 4 It is a schematic diagram of the connection between the driving spur gear and the driven spur gear of the present utility model;

[0022] Figure 5 It is a schematic diagram of the assembly of the anti-slip screw rod of the present utility model;

[0023] Figure 6 It is the present utility model Figure 5 The partial enlarged schematic diagram at position A in the present utility model.

[0024] In the figure, 1 is a positioning frame; 2 is a central shaft rod; 3 is a driving wheel; 4 is a driving pull rope; 5 is a support component; 6 is a winding roller; 7 is a transmission component; 8 is a curtain; 9 is a displacement frame; 10 is an assembly cylinder; 11 is an assembly plate; 12 is a support shaft rod; 13 is a linkage plate; 14 is a guide rod; 15 is an extension frame; 16 is an anti-slip screw rod; 17 is an anti-slip plate; 18 is a driving spur gear; 19 is a driven spur gear; 20 is a mating lock plate; 21 is a limit seat; 22 is a locking shaft rod; 23 is a locking block; 24 is a spiral spring. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1:

[0027] Please refer to Figures 1-6 , a rolling curtain, including a positioning frame 1, a central shaft rod 2 is horizontally rotatably connected to the inner side of the positioning frame 1, one end of the central shaft rod 2 is fixedly connected to a driving wheel 3, a driving pull rope 4 is assembled on the outer side of the driving wheel 3, a winding roller 6 is assembled at the bottom end of the positioning frame 1 through a support component 5, a transmission component 7 is assembled between the central shaft rod 2 and the winding roller 6, and the transmission component 7 is used to drive the winding roller 6 to rotate. A curtain 8 is fixedly connected to the outer side of the winding roller 6;

[0028] Specifically, a counterweight cross bar is fixedly connected to the bottom end of the curtain 8, and counterweight blocks are fixedly connected to both ends of the counterweight cross bar. By setting the counterweight cross bar, it can avoid the violent swaying of the curtain 8 when it is wound and lowered, ensuring the application effect of the curtain 8;

[0029] The support assembly 5 includes a displacement frame 9, a mounting cylinder 10, a mounting plate 11, a support shaft rod 12, a linkage plate 13 and a guide rod 14. Both ends of the bottom of the positioning frame 1 are slidably connected to the displacement frame 9. One end of each of the two displacement frames 9 is fixedly connected to a mounting cylinder 10, and the winding roller 6 is assembled between the two mounting cylinders 10. The middle of the bottom end of the positioning frame 1 is fixedly connected to a mounting plate 11. The middle of the mounting plate 11 is fixedly connected to a support shaft rod 12. The outer side of the support shaft rod 12 is rotatably connected to a linkage plate 13. Both ends of the linkage plate 13 are rotatably connected to a guide rod 14. One end of each of the two guide rods 14 away from the linkage plate 13 is rotatably connected to the two displacement frames 9 respectively. The bottom of one end of the positioning frame 1 is fixedly connected to an extension frame 15. The middle of the extension frame 15 is threadedly connected to an anti-slip screw rod 16. One end of the anti-slip screw rod 16 located inside the extension frame 15 is rotatably connected to an anti-slip plate 17;

[0030] Among them, a mounting groove is formed inside the mounting cylinder 10, and alloy balls are arranged inside the mounting groove. By means of the arrangement of the alloy balls, the smoothness of the winding roller 6 rotating inside the mounting cylinder 10 can be ensured;

[0031] Furthermore, extension columns are fixedly connected to one ends of the two displacement frames 9 close to each other, and one end of the guide rod 14 away from the linkage plate 13 is rotatably connected to the outer side of the extension column. By means of the structural cooperation of the extension column, the guide rod 14 can be stably assembled to ensure the linkage effect of the guide rod 14;

[0032] Preferably, stabilizing slide rods are slidably connected to the top and bottom of the extension frame 15, and one end of the stabilizing slide rod is fixedly connected to the anti-slip plate 17. By means of the arrangement of the stabilizing slide rod, the displacement of the anti-slip plate 17 can be effectively guided to prevent the anti-slip plate 17 from rotating uncontrollably;

[0033] Furthermore, an avoidance groove is formed at one end of the positioning frame 1 close to the anti-slip plate 17 for the anti-slip plate 17 to pass through. Subsequently, when the anti-slip plate 17 passes through the avoidance groove and contacts the displacement frame 9, the friction between the displacement frame 9 and the positioning frame 1 can be effectively increased, thereby locking the position of the displacement frame 9.

[0034] Embodiment Two:

[0035] Please refer to Figures 1-6, on the basis of the first embodiment, this embodiment provides a technical solution: the transmission assembly 7 includes a transmission spur gear 18, a driven spur gear 19, a mating lock disk 20 and a limit seat 21. Both ends of the outer side of the central shaft rod 2 are fixedly connected with a transmission spur gear 18. Both ends of the outer side of the winding roller 6 are fixedly connected with a driven spur gear 19, and the two driven spur gears 19 are respectively meshed with the two transmission spur gears 18. One end of the central shaft rod 2 far from the transmission wheel 3 is fixedly connected with a mating lock disk 20. Both sides of the positioning frame 1 close to the mating lock disk 20 are fixedly connected with limit seats 21. A locking shaft rod 22 is slidably connected to the middle of the limit seat 21. One end of the locking shaft rod 22 close to the mating lock disk 20 is fixedly connected with a locking block 23, and the locking block 23 is snap-connected with the mating lock disk 20. A spiral spring 24 is fixedly connected between the locking block 23 and the limit seat 21;

[0036] More specifically, a plurality of mating lock grooves are formed on the outer side of the mating lock disk 20. Guide slopes are formed at both ends of each mating lock groove. One end of the locking block 23 is fixedly connected with a clamping block. Force slopes for cooperating with the guide slopes are arranged at the top and bottom of the clamping block. By means of the arrangement of the guide slopes and the force slopes, during the rotation of the mating lock disk 20, the cooperation of the guide slopes and the force slopes can be utilized to drive the locking block 23 to disengage from the connection with the mating lock disk 20, so as to avoid interfering with the rotation of the central shaft rod 2.

[0037] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] Working principle: First, install the positioning frame 1 on the indoor ceiling. Subsequently, pull the transmission pull rope 4 to drive the central shaft rod 2 to rotate through the transmission wheel 3, and drive the driven spur gear 19 by the transmission spur gear 18, thereby driving the winding roller 6 to rotate. In cooperation with the connection between the winding roller 6 and the curtain 8, the curtain 8 can be wound or unwound. During the rotation of the central shaft rod 2, the mating lock grooves at the mating lock disk 20 will sequentially pass through the locking block 23. In cooperation with the structural characteristics of the mating lock grooves and the locking block 23, the locking block 23 can be pushed by the mating lock grooves to disengage from the connection with the mating lock disk 20, so as to avoid interfering with the rotation of the central shaft rod 2. Since the locking block 23 can squeeze the spiral spring 24 when displaced, after the central shaft rod 2 stops rotating, the spiral spring 24 can be utilized to push the locking block 23 to snap into the corresponding mating lock groove, forming a rotation stop limit for the central shaft rod 2, thereby locking the position of the curtain 8. Since the two ends of the winding roller 6 are respectively driven by the two transmission spur gears 18, the winding speeds at both ends of the winding roller 6 are the same, avoiding the inclination of the curtain 8;

[0039] And a rotatable anti-slip screw rod 16, in cooperation with the connection of the anti-slip screw rod 16 and the extension frame 15, enables the anti-slip screw rod 16 to drive the anti-slip plate 17 to disengage from the contact with one of the displacement frames 9, thereby reducing the frictional force between the displacement frame 9 and the positioning frame 1. Subsequently, the displacement frame 9 is pulled outwards. Since the guide rod 14 is assembled between the displacement frame 9 and the linkage plate 13, when the displacement frame 9 moves, the linkage plate 13 can be pulled by the guide rod 14, and the other displacement frame 9 can be pushed by the linkage plate 13, so as to drive the two displacement frames 9 to move away from each other, making the assembly cylinder 10 disengage from the winding roller 6, and then the winding roller 6 can be conveniently disassembled to facilitate the cleaning of the cloth curtain 8.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling blind, characterized in that: The invention comprises a positioning frame (1), wherein the inner side of the positioning frame (1) is laterally rotatably connected to a central shaft (2), one end of the central shaft (2) is fixedly connected to a transmission wheel (3), the outer side of the transmission wheel (3) is equipped with a transmission pull rope (4), the bottom end of the positioning frame (1) is equipped with a winding roller (6) through a supporting component (5), a transmission component (7) is arranged between the central shaft (2) and the winding roller (6), the transmission component (7) is used to drive the winding roller (6) to rotate, and the outer side of the winding roller (6) is fixedly connected to a cloth curtain (8).

2. A rolling shutter according to claim 1, characterized in that: The support assembly (5) comprises a displacement frame (9), an assembly cylinder (10), an assembly plate (11), a support shaft (12), a linkage plate (13) and a guide rod (14); both ends of the bottom of the positioning frame (1) are slidably connected to the displacement frame (9); one end of each of the two displacement frames (9) is fixedly connected to the assembly cylinder (10); and the winding roller (6) is mounted between the two assembly cylinders (10); the middle part of the bottom end of the positioning frame (1) is fixedly connected to the assembly plate (11); the middle part of the assembly plate (11) is fixedly connected to the support shaft ( 12), the outer side of the supporting shaft (12) is rotatably connected with a linkage plate (13), both ends of the linkage plate (13) are rotatably connected with guide rods (14), and the ends of the two guide rods (14) away from the linkage plate (13) are rotatably connected with two displacement frames (9), the bottom of one end of the positioning frame (1) is fixedly connected with an extension frame (15), the middle part of the extension frame (15) is threadedly connected with a non-slip screw (16), and the end of the non-slip screw (16) located on the inner side of the extension frame (15) is rotatably connected with a non-slip plate (17).

3. A rolling shutter according to claim 1, characterized in that: The transmission assembly (7) comprises a transmission spur gear (18), a matching spur gear (19), a matching lock plate (20) and a limit seat (21); both ends of the outer side of the central shaft (2) are fixedly connected to the transmission spur gear (18); both ends of the outer side of the winding roller (6) are fixedly connected to the matching spur gear (19); and the two matching spur gears (19) are respectively meshed and connected with the two transmission spur gears (18); and one end of the central shaft (2) away from the transmission wheel (3) is fixedly connected to the matching lock plate (20). A locking plate (20) is provided, and both sides of the positioning frame (1) close to the locking plate (20) are fixedly connected to a limiting seat (21), a locking shaft (22) is slidably connected to the middle of the limiting seat (21), and one end of the locking shaft (22) close to the locking plate (20) is fixedly connected to a locking block (23), and the locking block (23) is connected to the locking plate (20) by snapping, and a coil spring (24) is fixedly connected between the locking block (23) and the limiting seat (21).

4. A rolling shutter according to claim 1, characterized in that: The bottom end of the cloth curtain (8) is fixedly connected to a counterweight cross bar, and both ends of the counterweight cross bar are fixedly connected to counterweight blocks.

5. The rolling shutter according to claim 2, characterized in that: A carrying groove is provided inside the assembly cylinder (10), and an alloy ball is arranged inside the carrying groove.

6. A rolling shutter according to claim 2, characterized in that: The ends of the two displacement frames (9) that are close to each other are fixedly connected to an extension column, and the end of the guide rod (14) that is away from the linkage plate (13) is rotatably connected to the outside of the extension column.

7. A rolling shutter according to claim 2, characterized in that: The top and bottom ends of the extension frame (15) are both slidably connected to a stabilizing sliding rod, and one end of the stabilizing sliding rod is fixedly connected to a stop slide plate (17).

8. The rolling shutter according to claim 3, characterized in that: The outer side of the locking plate (20) is provided with a plurality of locking grooves, both ends of each of the locking grooves are provided with guide slopes, one end of the locking block (23) is fixedly connected with a clamping block, and the top and bottom ends of the clamping block are provided with force-bearing slopes for matching the guide slopes.

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