Coupling device for upper reel and lower reel

Abstract

The utility model relates to the technical field of roller shutters, in particular to an upper and lower reel coupling device which comprises a support plate, two ends of the support plate are respectively and rotatably provided with horizontally extending short shafts, the two short shafts are vertically staggered, one end of each short shaft is coaxially and fixedly connected with a reel, and the support plate is further rotatably provided with a long shaft. The two ends of the long shaft are in transmission connection with the corresponding short shafts respectively; the two short shafts which are staggered up and down are linked through the long shaft, so that the upper reel and the lower reel synchronously rotate to wind or release the roller shutters, large-span synchronous lifting of the multiple roller shutters is achieved, and meanwhile the installation requirement for different heights of the adjacent reels can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling blinds, in particular to an upper and lower rolling shaft coupling device. Background Art

[0002] As an indispensable window and door product in the field of modern architecture, roller shutters are now widely used in various construction sites such as garages, shops, warehouses, and residences. Since the curtain body of the roller shutter has a certain weight, in order to avoid deformation and bending of the reel, the width of the curtain body needs to be limited.

[0003] In the prior art, the utility model patent with application number CN202311015458.X discloses a multi-axis linkage roller shutter, including a first roller and at least one driven roller, and adjustable tail plugs for adjusting the length of the roller are plugged at the tail ends of the first roller and the driven roller; when there is only one driven roller, the first roller and the driven roller are connected by a roller linkage component that can link the two, or when there are multiple driven rollers, the first roller and the driven roller connected to it and the adjacent driven rollers are connected by a roller linkage component that can link the first roller and all the driven rollers, so that two or more roller shutters can be linked, and a single lifting operation can achieve synchronous opening and closing of multiple roller shutters.

[0004] However, the above-mentioned multi-axis linkage roller shutter can only realize the linkage of multiple rollers at the same height. Modern shopping malls, entertainment venues, garages, etc. have complex and irregular facilities, which leads to different installation heights of adjacent rollers. The existing structure cannot realize the linkage between rollers at different heights, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide an upper and lower reel coupling device, which can realize the linkage between reels at different heights, so as to solve the defects mentioned in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The upper and lower reel coupling device comprises a bracket plate, and short shafts extending horizontally are rotatably mounted on both ends of the bracket plate. The two short shafts are staggered up and down, and one end of the short shaft is coaxially fixedly connected to the reel. A long shaft is also rotatably mounted on the bracket plate, and the two ends of the long shaft are respectively transmission-connected to the corresponding short shafts.

[0008] As a preferred technical solution, one end of the short shaft is fixedly connected to one end of the reel via a coupling.

[0009] As a preferred technical solution, both ends of the long axis are connected to the corresponding short axis via chains respectively.

[0010] As a preferred technical solution, the two short axes are arranged in parallel; the long axis is arranged in parallel with the short axis.

[0011] As a preferred technical solution, the long axis includes two shaft rods corresponding to the short axes one by one. One ends of the two shaft rods are connected by a universal joint. The two shaft rods are respectively arranged in parallel with the corresponding short axes, and the two shaft rods are respectively in transmission connection with the corresponding short axes.

[0012] As a preferred technical solution, the support plate includes two movable plates corresponding to the shaft rods one by one. One ends of the two movable plates are hinged to each other. The two shaft rods are respectively rotatably installed on the corresponding movable plates, and the angle between the two shaft rods changes with the change of the angle between the two movable plates.

[0013] As a preferred technical solution, a sliding pin is fixedly installed on one of the movable plates, and an arc-shaped hole matching the sliding pin is arranged on the other movable plate. When the two movable plates rotate relative to each other, the sliding pin is driven to move along the arc-shaped hole.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The two short axes arranged staggeredly up and down are linked by the long axis, so that the upper and lower two rolling shafts rotate synchronously to wind or release the rolling curtain, realizing the synchronous lifting and lowering of large-span multiple rolling curtains while meeting the installation requirements of different heights of adjacent rolling shafts;

[0016] 2. When the two movable plates rotate relative to each other, the two shaft rods are bent at the universal joint, and at the same time, the angle between adjacent two rolling shafts in the horizontal direction also changes, so as to install adjacent two linked rolling shafts at a certain angle, further meeting the installation requirements of the rolling curtain in complex scenarios. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram when installing the rolling shaft in the first embodiment of the present utility model;

[0020] Figure 3It is a structural schematic diagram of the second embodiment of the utility model;

[0021] Figure 4 It is a top view schematic diagram of the bracket plate of the second embodiment of the utility model.

[0022] In the figure: 1- reel; 2- bracket plate; 3- angle iron; 4- mounting part; 5- short shaft; 6- coupling; 7- L-shaped plate; 8- long shaft; 9- bearing seat; 10- chain; 11- shaft rod; 12- universal joint; 13- movable plate; 14- hinge shaft; 15- sliding pin; 16- arc hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] The upper and lower reel coupling device is connected between the ends of two adjacent reels 1.

[0026] like Figure 1 and Figure 2 As shown, it specifically includes a bracket plate 2, which is fixedly connected to the top of the building through an angle iron 3. The bracket plate 2 is horizontally arranged, and both ends of the bracket plate 2 are respectively provided with a mounting portion 4 bent at ninety degrees, and a horizontally extending short shaft 5 is rotatably mounted on the two mounting portions 4 through bearings, and the two mounting portions 4 extend to the upper and lower sides of the bracket plate 2, respectively, so that the two short shafts 5 are staggered up and down.

[0027] The ends of the two short shafts 5 close to each other are fixedly connected to the end of a reel 1 through a coupling 6, and the roller blind is wound on the reel 1. In this embodiment, the two short shafts 5 are arranged in parallel, and the two adjacent reels 1 are also arranged in parallel up and down. In order to improve the stability of the installation of the reel 1, L-shaped plates 7 are fixedly installed at both ends of the bracket plate 2, and the horizontal part of the L-shaped plate 7 is welded or fixedly installed on the bracket plate 2 by bolts, and the vertical part of the L-shaped plate 7 is arranged horizontally opposite to the mounting part 4 at the corresponding end, and the ends of the two reels 1 close to each other are rotatably connected to the corresponding L-shaped plate 7 through bearings.

[0028] A long shaft 8 is also rotatably mounted on the bottom of the bracket plate 2 through a bearing seat 9, and both ends of the long shaft 8 are respectively transmission-connected with the corresponding short shafts 5. In this embodiment, sprockets of the same specifications are fixedly mounted on both ends of the short shaft 5 and the long shaft 8, and the short shaft 5 is connected to the corresponding end of the long shaft 8 through a chain 10, so that the upper and lower short shafts 5 rotate synchronously.

[0029] One of the short shafts 5 is connected to a driving device, which can be a motor. When the driving device drives one of the short shafts 5 to rotate, the upper and lower short shafts 5 are linked by a long shaft 8, so that the upper and lower two winding shafts 1 rotate synchronously to wind or release the rolling curtain. While realizing the synchronous lifting and lowering of large-span multiple rolling curtains, it can also meet the installation requirements of adjacent winding shafts 1 at different heights.

[0030] Embodiment Two:

[0031] As Figure 3 and Figure 4 shown, the difference between this embodiment and Embodiment One is that the long shaft 8 includes two shaft rods 11 corresponding one-to-one to the short shafts 5. One ends of the two shaft rods 11 are connected by a universal joint 12, so that the angle between the two shaft rods 11 can change. The two shaft rods 11 are respectively arranged parallel to the corresponding short shafts 5. The same-specification sprockets are fixedly installed on the short shafts 5 and the two shaft rods 11 respectively. The short shaft 5 is connected to the corresponding shaft rod 11 by a chain 10.

[0032] The support plate 2 includes two movable plates 13 corresponding one-to-one to the shaft rods 11. One ends of the two movable plates 13 are hinged to each other by a hinge shaft 14, and the hinge shaft 14 extends vertically, so that the two movable plates 13 can rotate relative to each other in the horizontal plane. The two mounting parts 4 are respectively arranged at the ends of the two movable plates 13 away from each other. The mounting part 4 on the left movable plate 13 extends upward, and the mounting part 4 on the right movable plate 13 extends downward; the two shaft rods 11 are respectively rotatably installed at the bottom of the corresponding movable plates 13 through bearing seats 9. The angle between the two shaft rods 11 changes with the change of the angle between the two movable plates 13. When the two movable plates 13 rotate relative to each other, the two shaft rods 11 are bent at the universal joint 12, and at the same time, the angle between adjacent two winding shafts 1 in the horizontal direction also changes accordingly, so as to install the adjacent two linked winding shafts 1 at a certain angle, further meeting the installation requirements of the rolling curtain in complex scenarios.

[0033] A sliding pin 15 is welded on one of the movable plates 13. The sliding pin 15 is parallel to the hinge shaft 14. An arc-shaped hole 16 matching the sliding pin 15 is provided on the other movable plate 13. The arc-shaped hole 16 is centered on the hinge shaft 14, and the sliding pin 15 is movably installed in the arc-shaped hole 16. When the two movable plates 13 rotate relative to each other, the sliding pin 15 is driven to move along the arc-shaped hole 16, playing a role in limiting the rotatable range between the two movable plates 13.

[0034] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. Upper and lower scroll coupling device, characterized in that: It includes a support plate. Horizontally extending short shafts are rotatably installed at both ends of the support plate respectively. The two short shafts are staggered vertically. One end of each short shaft is coaxially and fixedly connected to a reel. A long shaft is also rotatably installed on the support plate, and both ends of the long shaft are respectively drivingly connected to the corresponding short shafts.

2. The up-and-down scroll coupling device according to claim 1, characterized in that: One end of the short shaft is fixedly connected to one end of the reel through a coupling.

3. The up-and-down scroll coupling device according to claim 1, wherein: Both ends of the long shaft are respectively connected to the corresponding short shafts through chains.

4. The up-and-down scroll coupling device according to any one of claims 1 to 3, characterized in that: The two short shafts are arranged in parallel; the long shaft is arranged in parallel with the short shafts.

5. The up-and-down scroll coupling device according to any one of claims 1 to 3, characterized in that: The long shaft includes two shaft rods corresponding to the short shafts one by one. One ends of the two shaft rods are connected through a universal joint. The two shaft rods are respectively arranged in parallel with the corresponding short shafts and are respectively drivingly connected to the corresponding short shafts.

6. The up-and-down scroll coupling device according to claim 5, wherein: The support plate includes two movable plates corresponding to the shaft rods one by one. One ends of the two movable plates are hinged to each other. The two shaft rods are respectively rotatably installed on the corresponding movable plates. The angle between the two shaft rods changes as the angle between the two movable plates changes.

7. The upper and lower scroll coupling device according to claim 6, characterized in that: A sliding pin is fixedly installed on one of the movable plates, and an arc-shaped hole matching the sliding pin is provided on the other movable plate. When the two movable plates rotate relative to each other, the sliding pin is driven to move along the arc-shaped hole.

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