Connecting mechanism for roller shutter door

Abstract

The utility model provides a connecting mechanism for a roller shutter door, and relates to the technical field of roller shutter door assembly, the connecting mechanism comprises a known fixed frame fixed at a door head and a known roller shutter shaft used for winding the roller shutter door, the bottom surface of the fixed frame is provided with a storage groove, and the two sides of the bottom surface of the fixed frame are provided with connecting grooves; the roller shutter shaft is installed in the fixing frame and stretches across the containing groove and the two connecting grooves, and by rotating the long-rod bolt, the long-rod bolt can move relative to the fixing frame while rotating relative to the movable disc. The long-rod bolt pushes the moving disc connected with the long-rod bolt to move towards the connecting disc till the inserting columns on the surface of the long-rod bolt are inserted into the inserting holes in the connecting disc at the corresponding positions, the position of the moving disc is fixed through the connecting groove, and then the inserting columns are connected with the inserting holes in an inserted mode, so that rigid position fixing of the moving disc to the connecting disc is achieved. Therefore, the connecting disc and the roller shutter shaft connected with the connecting disc can be prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling shutter door assembly, in particular to a connecting mechanism for rolling shutter doors. Background Art

[0002] The rolling door is composed of multi-jointed door panels connected in series. In a fixed slide, the doors rotate up and down around the scroll shaft above the door to facilitate the installation of the rolling door.

[0003] After searching

[0004] A rolling door connection structure, publication number: CN212774068U. When in use, the rolling door body is moved to the position between the rotating shafts, and then the user slides the movable rod along the first cavity through the groove body to squeeze the spring to move, and then aligns the second cavity on both sides of the rolling door body with the limit block, and then releases the movable rod. The spring drives the movable rod to reset, so that the limit block moves to the position inside the second cavity, thereby preliminarily fixing the rolling door body, and then the user rotates the limit sleeve and uses the limit sleeve to squeeze the limit block, so that the right end of the limit block squeezes the slider outward, and the slider moves along the slide groove to squeeze the side wall of the second cavity to use friction to firmly fix the rolling door body.

[0005] However, in actual use, the rolling door body will have downward pressure due to its own weight. Therefore, the method of fixing the rolling door body only by friction force will easily cause the rolling door body to exert additional pressure on the bottom wall of the second cavity, thereby causing a gap to easily form between the slider and the top wall of the second cavity. Long-term use and the action of the gap will easily cause the rolling door body to loosen. Utility Model Content

[0006] The utility model aims to solve the problems existing in the prior art and proposes a connecting mechanism for a rolling door.

[0007] In order to achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a connecting mechanism for a rolling shutter door, comprising a known fixing frame fixed at a door head and a known rolling shutter shaft for winding the rolling shutter door, the fixing frame having a storage groove on its bottom surface, and connecting grooves on both sides of the bottom surface of the fixing frame, the rolling shutter shaft is installed in the fixing frame and spans the storage groove and the two connecting grooves, the end surface of the rolling shutter shaft located in the two connecting grooves is rotatably connected with a connecting disk, a plurality of insertion holes are provided at the edge position of the end surface of the connecting disk, the groove wall of the connecting groove is also embedded with a movable disk in a sliding connection, the end surface of the movable disk is plugged into the end surface of the connecting disk, and a plurality of insertion columns corresponding to the position and number of the insertion holes are penetrated through the edge of the end surface of the movable disk, the two movable disks move relative to the storage groove, and one of the insertion columns on one of the movable disks is rotatably connected to an end of a long rod bolt that is threadedly penetrated by the fixing frame.

[0008] Preferably, the relative end faces of the two movable plates are fixedly connected with racks extending into the receiving groove, the two rack tooth surfaces are arranged opposite to each other, and the ends pass through the top of the receiving groove, and the top of the receiving groove is rotatably connected with a gear meshing with the two rack tooth surfaces.

[0009] Preferably, the rolling shutter door wound on the rolling shutter shaft is located in the storage groove, and bearings for fitting into the side walls of the storage groove and the connecting groove are installed on both sides of the axial surface of the rolling shutter shaft.

[0010] Preferably, a sliding groove slidably connected to the axial surface of the roller blind shaft is provided at the bottom edge of the side groove wall of the storage groove, the sliding groove extends to the middle position of the fixed frame, and a pad for supporting the outer ring of the bearing is slidably embedded in the relative groove wall of the sliding groove.

[0011] Preferably, spring rods are connected between the cushion block and the inner walls of the storage groove and the connecting groove, and a connecting frame connected to the two cushion blocks is provided through the front side surface of the fixing frame.

[0012] Preferably, a through hole is formed at the top of the connecting groove.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by rotating the long-rod bolt, the long-rod bolt can rotate relative to the movable disk and move relative to the fixed frame at the same time. The movable disk connected to it is pushed by the long-rod bolt to move toward the connecting disk until a plurality of plug posts on its surface are inserted into the plug holes on the connecting disk at corresponding positions. The position of the movable disk is fixed by the connecting groove, and the plug posts are connected with the plug holes to achieve rigid fixation of the position of the movable disk to the connecting disk, thereby preventing the connecting disk and the roller blind shaft connected to it from falling off.

[0015] 2. In the utility model, before installing the roller blind shaft, the connecting frame is pulled so that the two cushion blocks overcome the elastic force of the spring rod and move out of the slide groove, and after the roller blind shaft enters the top of the slide groove, the connecting frame is loosened, and under the elastic resetting action of the spring rod, the cushion blocks are moved to the bottom of the bearing and fit the outer ring of the bearing, thereby achieving further support for the bearing and the roller blind shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a connecting mechanism for a rolling door is proposed for the utility model;

[0017] Figure 2 The utility model proposes a connecting mechanism for rolling shutter door Figure 1 Schematic diagram of the structure viewed from above;

[0018] Figure 3The utility model proposes a connecting mechanism for rolling shutter door Figure 2 A schematic cross-sectional structure diagram of;

[0019] Figure 4 for Figure 1 Schematic diagram of the side section structure;

[0020] Figure 5 for Figure 4 Schematic diagram of the side structure.

[0021] Legend: 1. Fixed frame; 2. Through hole; 3. Long rod bolt; 4. Connecting frame; 5. Storage slot; 6. Connecting slot; 7. Rack; 8. Gear; 9. Bearing; 10. Connecting plate; 11. Moving plate; 12. Plug column; 13. Spacer block; 14. Plug hole; 15. Rolling shaft; 16. Spring rod; 17. Slide slot. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] like Figure 1-5As shown, a connecting mechanism for a rolling shutter door comprises a known fixing frame 1 fixed at the door head and a known rolling shutter shaft 15 for winding the rolling shutter door. The fixing frame 1 is fixed above the door head by expansion bolts or other means, and the rolling shutter shaft 15 is fixed in the fixing frame 1. A receiving groove 5 is provided on the bottom surface of the fixing frame 1, and connecting grooves 6 are provided on both sides of the bottom surface of the fixing frame 1. The rolling shutter shaft 15 is installed in the fixing frame 1 and spans the receiving groove 5 and the two connecting grooves 6. The middle position of the rolling shutter shaft 15 is located in the receiving groove 5, and the two ends are located in the connecting grooves 6. The rolling shutter shaft 15 is located at the two The end face in each connecting groove 6 is rotatably connected to a connecting disk 10, and a plurality of insertion holes 14 are provided at the edge of the end face of the connecting disk 10. A movable disk 11 is also embedded in the wall of the connecting groove 6 and is slidably connected thereto. The end face of the movable disk 11 is plugged into the end face of the connecting disk 10, and a plurality of insertion posts 12 corresponding to the positions and numbers of the insertion holes 14 are penetrated through the edge of the end face of the movable disk 11. The plurality of insertion posts 12 moved to the surface of the movable disk 11 are inserted into the insertion holes 14 on the connecting disk 10 at corresponding positions. The position of the movable disk 11 is fixed by the connecting groove 6, and then the insertion of the insertion posts 12 into the insertion holes 14 is realized. The movable plate 11 is fixed to the position of the connecting plate 10, so as to prevent the connecting plate 10 and the roller blind shaft 15 connected thereto from falling. The two movable plates 11 move relative to the receiving groove 5, and one end of one of the plug posts 12 on one of the movable plates 11 facing away from the connecting plate 10 is rotatably connected to a long rod bolt 3 threadedly penetrated by the fixing frame 1. The opposite end faces of the two movable plates 11 are fixedly connected to a rack 7 extending into the receiving groove 5. The tooth surfaces of the two racks 7 are arranged opposite to each other, and the ends thereof penetrate the top of the receiving groove 5. The top of the receiving groove 5 is rotatably connected to a tooth surface meshed with the tooth surfaces of the two racks 7. The gear 8 can realize that the long rod bolt 3 rotates relative to the movable disk 11 and can move relative to the fixed frame 1 by rotating the long rod bolt 3, that is, the movable disk 11 connected to it is pushed to move in the direction of the connecting disk 10 by the long rod bolt 3, and the significance of setting the gear 8 and the rack 7 is that when one of the movable disks 11 moves under the pushing action of the long rod bolt 3, it drives the corresponding rack 7 to move, and through the meshing transmission of the set gear 8, the other rack 7 drives the other movable disk 11 to approach the connecting disk 10 at the corresponding position, so that the two movable disks 11 can move simultaneously.

[0025] To further fix the position of the rolling curtain shaft 15: the rolling curtain door wound on the rolling curtain shaft 15 is located in the storage groove 5, and bearings 9 for fitting the side groove walls of the storage groove 5 and the connecting groove 6 are installed on both sides of the axial surface of the rolling curtain shaft 15. As shown in the figure, the two bearings 9 arranged at one end of the rolling curtain shaft 15 can prevent the rolling curtain shaft 15 from sliding left and right in the fixing frame 1 by clamping the side groove wall shared by the storage groove 5 and the connecting groove 6, and the arranged bearings 9 ensure that the rolling curtain shaft 15 can rotate smoothly, and a sliding groove 17 slidably connected to the axial surface of the rolling curtain shaft 15 is provided at the bottom edge of the side groove wall of the storage groove 5, and the sliding groove 17 extends to the middle position of the fixing frame 1, and the arranged sliding groove 17 is used to ensure that the rolling curtain shaft 15 can be installed in the fixing frame 1. The middle position of the fixed frame 1 is provided with a cushion block 13 for supporting the outer ring of the bearing 9, and the relative groove wall of the slide groove 17 is embedded and slidably connected. The cushion block 13 is connected to the inner walls of the storage groove 5 and the connecting groove 6 with a spring rod 16, and a connecting frame 4 connected to the two cushion blocks 13 is provided on the front side of the fixed frame 1. Before installing the roller blind shaft 15, the connecting frame 4 is pulled so that the two cushion blocks 13 overcome the elastic force of the spring rod 16 and move out of the slide groove 17, and after the roller blind shaft 15 enters the top of the slide groove 17, the connecting frame 4 is released, and under the elastic reset action of the spring rod 16, the cushion block 13 moves to the bottom of the bearing 9 and fits the outer ring of the bearing 9, thereby achieving further support for the bearing 9 and the roller blind shaft 15.

[0026] In order to facilitate the installation of the roller blind shaft 15: a through hole 2 is opened at the top of the connecting groove 6. During installation, a rope is passed through the through hole 2, one end is tied to the connecting disk 10, and the other end is pulled with the assistance of manpower or mechanical equipment. The connecting disk 10 is lifted by telescopic means, and the roller blind shaft 15 is installed in the fixing frame 1 in a lifting manner.

[0027] The method of use is as follows: fix the fixing frame 1 at a predetermined position, and then lift the rolling shutter shaft 15 equipped with the rolling shutter door into the fixing frame 1 by hoisting, and rotate the long rod bolt 3, so that the long rod bolt 3 can rotate relative to the movable disk 11 and move relative to the fixing frame 1 at the same time, that is, the movable disk 11 connected thereto is pushed to move toward the connecting disk 10 by the long rod bolt 3, and when one of the movable disks 11 moves under the pushing action of the long rod bolt 3, it drives the corresponding rack 7 to move, and through the meshing transmission of the set gear 8, the other rack 7 drives the other movable disk 11 to approach the connecting disk 10 at the corresponding position, so that the two movable disks 11 can be moved at the same time until the several plug posts 12 on their surfaces are inserted into the sockets 14 on the connecting disks 10 at the corresponding positions, and then further fixed by the pad 13.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A connecting mechanism for a rolling door, comprising a known fixing frame (1) fixed at the door head and a known rolling shaft (15) for winding the rolling door, characterized in that: The bottom surface of the fixing frame (1) is provided with a storage groove (5), and connecting grooves (6) are provided at both sides of the bottom surface of the fixing frame (1). The rolling curtain shaft (15) is installed in the fixing frame (1) and spans the storage groove (5) and the two connecting grooves (6). The end surface of the rolling curtain shaft (15) located in the two connecting grooves (6) is rotatably connected to a connecting plate (10). The edge position of the end surface of the connecting plate (10) is provided with a plurality of insertion holes (14). The groove wall of the connecting groove (6) is also embedded with a sliding connection. A movable disk (11) is connected, the end face of the movable disk (11) is plugged into the end face of the connecting disk (10), and a plurality of plug posts (12) corresponding in position and number to the plug holes (14) are provided through the edge of the end face of the movable disk (11), the two movable disks (11) move relative to the receiving slot (5), and one end of one of the plug posts (12) on one of the movable disks (11) facing away from the connecting disk (10) is rotatably connected to a long rod bolt (3) threadedly provided through the fixing frame (1).

2. The connecting mechanism for rolling door according to claim 1, characterized in that: The opposite end surfaces of the two movable plates (11) are fixedly connected to racks (7) extending into the receiving groove (5); the tooth surfaces of the two racks (7) are arranged opposite to each other, and the ends thereof penetrate the top of the receiving groove (5); the top of the receiving groove (5) is rotatably connected to a gear (8) meshing with the tooth surfaces of the two racks (7).

3. The connecting mechanism for rolling door according to claim 1, characterized in that: The rolling shutter door wound on the rolling shutter shaft (15) is located in the storage groove (5), and bearings (9) for fitting into the side groove walls of the storage groove (5) and the connecting groove (6) are installed at both sides of the axial surface of the rolling shutter shaft (15).

4. The connecting mechanism for rolling door according to claim 3, characterized in that: A sliding groove (17) is provided at the bottom edge of the side groove wall of the receiving groove (5) and is slidably connected to the axial surface of the roller blind shaft (15). The sliding groove (17) extends to the middle of the fixing frame (1), and a cushion block (13) for supporting the outer ring of the bearing (9) is embedded and slidably connected in the relative groove wall of the sliding groove (17).

5. The connecting mechanism for rolling door according to claim 4, characterized in that: A spring rod (16) is connected between the cushion block (13) and the inner wall of the storage groove (5) and the connection groove (6), and a connection frame (4) connected to the two cushion blocks (13) is provided through the front side of the fixing frame (1).

6. The connecting mechanism for rolling door according to claim 1, characterized in that: A through hole (2) is provided at the top of the connecting groove (6).

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