Roller shutter door chain link plate and bottom beam connecting structure

Abstract

The utility model relates to the technical field of connecting structures, and provides a roller shutter door chain link plate and bottom beam connecting structure aiming at the problem that the connecting stability of a traditional roller shutter door chain link plate and a bottom beam is poor, the roller shutter door chain link plate and bottom beam connecting structure comprises a groove formed in the bottom of the chain link plate and a protruding block formed on the bottom beam, and the protruding block is embedded in the groove; the groove wall of the groove is connected with the protruding block through a plurality of rivets. The connecting structure is characterized in that the groove is also provided with a connecting piece; the protruding block is provided with a connecting part corresponding to the connecting piece, and the connecting piece is connected and matched with the connecting part. The connecting structure has the effect of improving the connecting stability of the chain link plate and the bottom beam.

Description

Technical Field

[0001] This application relates to the field of connection structures, and particularly to a connection structure between a roller shutter door link plate and a bottom beam. Background Art

[0002] The door body of a roller shutter door is composed of several link plates spliced together. A bottom beam is also provided at the bottom of the door body, and the bottom beam is connected to the link plates at the bottom of the door body for fixing and supporting the door body.

[0003] In the related art, as Figure 1 , a groove 11 and a convex block 21 are respectively formed on the link plate 1 and the bottom beam 2. The convex block 21 is hollow inside, and the convex block 21 is embedded in the groove 11. The groove wall of the groove 11 and the convex block 21 are connected by a plurality of rivets 3 to fix the bottom beam 2 on the link plate 1.

[0004] In view of the above related art, the groove wall and the convex block are only connected by rivets. During the use of the roller shutter door body, it is necessary to frequently pull down the bottom beam to unfold the door body. During the downward pull of the bottom beam, the external load acts concentratedly on the rivets between the convex block and the groove, and the rivets are extremely prone to deformation or even fracture, resulting in the detachment of the bottom beam from the link plate; the connection stability between the link plate and the bottom beam is relatively poor. Therefore, there is room for improvement. Utility Model Content

[0005] In order to improve the connection stability between the link plate and the bottom beam, this application provides a connection structure between a roller shutter door link plate and a bottom beam.

[0006] A connection structure between a roller shutter door link plate and a bottom beam provided by this application adopts the following technical solutions:

[0007] A connection structure between a roller shutter door link plate and a bottom beam includes a groove formed at the bottom of the link plate and a convex block formed on the bottom beam. The convex block is embedded in the groove, and the groove wall of the groove and the convex block are connected by a plurality of rivets; a connecting member is further provided in the groove; a connecting portion corresponding to the connecting member is provided on the convex block, and the connecting member and the connecting portion are connected and matched.

[0008] By adopting the above technical solutions, by respectively providing a connecting member and a connecting portion on the groove and the convex block that are connected and matched with each other, while the convex block and the groove are connected by rivets, the connection and limitation of the convex block and the groove can be further carried out by the connection and cooperation between the connecting member and the connecting portion. Compared with the traditional method of only connecting the convex block and the groove by rivets, it is beneficial to improve the connection stability between the convex block and the groove, and further beneficial to stably install the bottom beam on the link plate, reducing the situation that the rivets between the groove and the convex block are easily deformed and damaged due to the downward pull of the bottom beam, resulting in the detachment of the bottom beam from the link plate.

[0009] Preferably, the connecting member includes a hooking member protruding from the top groove wall of the groove, and the hooking member includes a vertical section and a horizontal section; the connecting portion includes a connection port formed at the top of the bump, and the horizontal section of the hooking member penetrates through the connection port into the inner cavity of the bump and abuts against the top cavity wall of the inner cavity of the bump.

[0010] By adopting the above technical solution, while embedding the bump on the bottom beam into the groove at the bottom of the link plate, the horizontal section of the hooking member is embedded into the inner cavity of the bump through the connection port at the top of the bump, and then the bottom beam is slid along the length direction of the groove so that the horizontal section of the hooking member abuts against the top cavity wall of the inner cavity of the bump, and the hooking member is used to connect and limit the bump to improve the connection integrity of the bump and the groove.

[0011] Preferably, the connecting member includes a connecting rib protruding from the side groove wall of the groove; the connecting portion includes a connecting groove formed on the side surface of the bump, both ends of the connecting groove are open, and the connecting rib is inserted and matched with the connecting groove.

[0012] By adopting the above technical solution, the connection between the groove and the bump is limited by the cooperation between the connecting rib and the connecting groove, so as to improve the connection integrity of the bump and the groove, and reduce the situation that when the bottom beam is stressed subsequently, the external load acts on the rivet intensively, resulting in easy deformation and damage of the rivet, which is beneficial to improving the connection stability between the bottom beam and the link plate.

[0013] Preferably, a fastening screw is further provided between the bump and the groove, and the fastening screw is threadedly penetrated through the top groove wall of the groove and the bump.

[0014] By adopting the above technical solution, the groove and the bump are further connected and limited by the fastening screw, so that the bottom beam can be more firmly installed on the link plate.

[0015] Preferably, a first flexible buffer layer is laid in the connecting groove.

[0016] By adopting the above technical solution, the flexible connection between the connecting rib and the connecting groove is realized by using the first flexible buffer layer, which is beneficial to dispersing the load acting on the connection between the connecting rib and the connecting groove subsequently, and reducing the deformation and damage of the connecting rib due to stress.

[0017] Preferably, the connecting member includes a connecting plate, and the connecting plate penetrates through the side groove wall of the groove; the connecting portion includes a connecting hole formed on the side surface of the bump, and one end of the connecting plate is inserted into the connecting hole.

[0018] By adopting the above technical solution, using the connecting plate to connect and limit the groove and the convex block is beneficial to improving the connection integrity between the groove and the convex block; at the same time, it is beneficial to reducing the external load acting concentratedly on the rivets at the connection of the groove and the convex block when pulling down the bottom beam subsequently, and reducing the deformation and damage of the rivets due to force.

[0019] Preferably, one end of the connecting plate away from the connecting hole is bent to form a bent section, and the bent section of the connecting plate is attached and welded to the outer side of the link plate.

[0020] By adopting the above technical solution, the fixation of the connecting plate is realized, and the separation of the connecting plate from the convex block and the groove during subsequent use is restricted.

[0021] Preferably, a second flexible buffer layer is laid on the hole wall of the connecting hole.

[0022] By adopting the above technical solution, the flexible contact between the connecting hole and the connecting plate is realized by using the second flexible buffer layer. When pulling down the bottom beam subsequently, it is beneficial to disperse the external load acting on the connection part between the connecting plate and the connecting hole, and reduce the situation that the connecting plate is easily deformed and damaged due to the external load acting concentratedly on the connection part between the connecting plate and the connecting hole.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By respectively arranging a hook member and a connection port on the groove and the convex block, when connecting the bottom beam and the link plate subsequently, the convex block is embedded into the groove and the horizontal section of the hook member extends into the inner cavity of the convex block through the socket on the convex block; then the bottom beam is slid along the length direction of the groove, so that the horizontal section of the hook member is staggered with the connection port and abuts against the top cavity wall of the inner cavity of the convex block, realizing the connection and limit of the convex block and the groove, which is beneficial to improving the connection stability between the groove and the convex block.

[0025] 2. By respectively arranging a connection rib and a connection groove on the groove and the convex block, when connecting the bottom beam and the link plate subsequently, the convex block is slid into the groove from one end of the groove, so that while the convex block is embedded in the groove, the connection rib is inserted and matched with the connection groove, realizing the connection and limit of the convex block and the groove, which is beneficial to improving the connection stability between the groove and the convex block.

[0026] 3. By respectively arranging a connecting plate and a connecting hole on the groove and the convex block, when connecting the bottom beam and the link plate subsequently, after the convex block is inserted into the groove, the connecting plate penetrating through the groove wall is inserted into the connecting hole on the side of the convex block, and the connecting plate is used to connect and limit the groove and the convex block, which is beneficial to improving the connection stability between the groove and the convex block. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the connection between the existing link plate and the bottom beam used in the present application.

[0028] Figure 2 Figure 1 is a schematic diagram showing the connection structure between the link plate and the bottom beam in the first embodiment.

[0029] Figure 3 Figure 2 is an exploded schematic diagram showing the connection relationship between the link plate and the bottom beam in the first embodiment.

[0030] Figure 4 Figure 3 is a schematic diagram showing the connection structure between the link plate and the bottom beam in the second embodiment.

[0031] Figure 5 is Figure 4 an enlarged schematic diagram of part A in Figure 3.

[0032] Figure 6 Figure 4 is a schematic diagram showing the connection structure between the link plate and the bottom beam in the third embodiment.

[0033] Figure 7 is Figure 6 an enlarged schematic diagram of part B in Figure 4.

[0034] Figure 8 Figure 5 is an exploded schematic diagram showing the connection relationship between the connecting plate and the link plate in the third embodiment.

[0035] Explanation of reference numerals:

[0036] 1. Link plate; 10. Fastening screw; 11. Groove; 2. Bottom beam; 21. Convex block; 3. Rivet; 4. Hook member; 41. Vertical section; 42. Horizontal section; 5. Connection port; 6. Connection rib; 7. Connection groove; 71. First flexible buffer layer; 8. Connecting plate; 81. Bent section; 111. Perforation; 9. Connection hole; 91. Second flexible buffer layer. Detailed description of the specific implementation

[0037] The following further elaborates on this application in conjunction with the attached Figures 2-8 drawings.

[0038] The embodiment of this application discloses a connection structure between a link plate of a rolling shutter door and a bottom beam.

[0039] First embodiment

[0040] A connection structure between a link plate of a rolling shutter door and a bottom beam, referring to Figure 2 and Figure 3 , includes a groove 11 formed at the bottom of the link plate 1 and a convex block 21 formed at the bottom of the bottom beam 2. The convex block 21 is hollow inside; the convex block 21 is embedded in the groove 11, and the convex block 21 and the groove 11 are connected by a plurality of rivets 3. The convex block 21 and the groove 11 are respectively provided with a connecting member and a connecting portion, and the connecting member and the connecting portion are connected and matched.

[0041] The connection and cooperation between the connecting piece and the connecting part assist the rivet 3 between the auxiliary bump 21 and the groove 11 to limit the connection between the bump 21 and the groove 11, so as to improve the connection stability between the bump 21 and the groove 11.

[0042] The connecting piece includes a plurality of hook members 4 protruding from the top groove wall of the connecting groove 7. The hook member 4 includes a vertical section 41 and a horizontal section 42, and the vertical section 41 and the horizontal section 42 are in an L shape. The top end of the vertical section 41 is connected to the top groove wall of the connecting groove 7. The connecting part includes a plurality of connecting ports 5 opened at the top end of the bump 21. The connecting ports 5 communicate with the inner cavity of the bump 21. The plurality of connecting ports 5 correspond to the plurality of hook members 4 one by one. The horizontal sections 42 of the hook members 4 extend into the inner cavity of the bump 21 through the corresponding connecting ports 5, and the horizontal sections 42 abut against the top cavity wall of the inner cavity of the bump 21.

[0043] Through the above settings, the hook member 4 at the top of the connecting groove 7 is used to hook and limit the bump 21. On the one hand, it can cooperate with the rivet 3 between the groove 11 and the bump 21 to connect and fix the groove 11 and the bump 21 together, which is beneficial to improving the connection stability between the groove 11 and the bump 21; on the other hand, when the bottom beam 2 is pulled down later to unfold the link plate 1 on the rolling door body, it is beneficial to limit the external load from concentrating on the rivet 3 between the groove 11 and the bump 21, and thus it is beneficial to reduce the situation that the rivet 3 is easily deformed and damaged.

[0044] The implementation principle of the first embodiment is that when connecting the bottom beam 2 and the link plate 1, while embedding the top bump 21 of the bottom beam 2 into the bottom groove 11 of the link plate 1, the horizontal section 42 of the hook member 4 at the top of the groove 11 is inserted into the inner cavity of the bump 21 through the connecting port 5 at the top of the bump 21, and then the bottom beam 2 is slid along the length direction of the groove 11 so that the horizontal section 42 of the hook member 4 is staggered from the connecting port 5 and abuts against the top cavity wall of the inner cavity of the bump 21; finally, the rivet 3 is driven into the side groove wall of the groove 11 and the bump 21 by a rivet gun.

[0045] Embodiment Two

[0046] The difference between the second embodiment and the first embodiment lies in: referring to Figure 4 and Figure 5, the connecting member includes connecting ribs 6 protruding from the two side walls of the groove 11, and both ends of the connecting ribs 6 extend to both ends of the groove 11 respectively. The connecting portion includes connecting grooves 7 formed on both side surfaces of the convex block 21, and both ends of the connecting grooves 7 are open; the connecting ribs 6 on the two side walls of the groove 11 are respectively inserted and matched with the connecting grooves 7 on both sides of the convex block 21. By using the cooperation between the connecting convex block 21 and the connecting groove 7, several rivets 3 between the groove 11 and the convex block 21 are assisted to connect and limit the groove 11 and the convex block 21, which is beneficial to improving the connection stability between the bottom beam 2 and the link plate 1. At the same time, when the bottom beam 2 is pulled down subsequently, the external load is concentrated on the rivets 3, reducing the situation that the rivets 3 are easily deformed and damaged.

[0047] A first flexible buffer layer 71 is laid in the groove 11 by glue. In this embodiment, the first flexible buffer layer 71 is made of polyethylene foam. Through the setting of the first flexible buffer layer 71, the flexible connection between the connecting rib 6 and the connecting groove 7 is realized, which is beneficial to dispersing the external load acting on the connecting rib 6 and the connecting groove 7 subsequently, so that the connecting rib 6 is not easily deformed and damaged.

[0048] Several fastening screws 10 are also provided between the groove 11 and the convex block 21, and the several fastening screws 10 are evenly distributed along the length direction of the groove 11; in this embodiment, the fastening screws 10 are flat head self-tapping screws, and the fastening screws 10 pass through the top wall of the groove 11 and the convex block 21 in a threaded manner. The groove 11 and the convex block 21 are further connected and limited by the fastening screws 10, so that the bottom beam 2 can be more firmly installed on the link plate 1.

[0049] The implementation principle of the second embodiment is that when connecting the bottom beam 2 and the link plate 1, the convex block 21 at the top of the bottom beam 2 is slid into the groove 11 from one end of the bottom of the link plate 1, so that while the convex block 21 is embedded in the groove 11, the connecting ribs 6 on the two side walls of the groove 11 are respectively inserted and matched with the connecting grooves 7 on both sides of the convex block 21. The fastening bolts are sequentially fed into the top wall of the groove 11 and the convex block 21 by an electric screwdriver; finally, the rivets 3 are driven into the side wall of the groove 11 and the convex block 21 by a rivet gun.

[0050] Embodiment Three

[0051] The difference between the third embodiment and the first embodiment is: Refer to Figures 6 to 8 , the connecting member includes several connecting plates 8 vertically arranged on the two side walls of the groove 11; several through holes 111 are formed on the side wall of the groove 11 corresponding to the several connecting plates 8, and the connecting plates 8 are passed through the side wall of the groove 11 through the corresponding through holes 111.

[0052] The connecting portion includes a plurality of connecting holes 9 formed on both sides of the bump 21; a plurality of connecting plates 8 on the side wall of the groove 11 are in one-to-one correspondence with the plurality of connecting holes 9 on the side surface of the bump 21. One end of each connecting plate 8 is inserted into the corresponding connecting hole 9. By the insertion fit between the connecting plate 8 and the connecting hole 9, the connecting plate 8 and the rivet 3 between the groove 11 and the bump 21 are used together to connect and limit the groove 11 and the bump 21.

[0053] One end of the connecting plate 8 away from the connecting hole 9 extends to the outside of the link plate 1 and is bent to form a bent section 81. The bent section 81 of the connecting plate 8 fits on the outside of the connecting plate 8 and is welded and fixed to the outside of the link plate 1. Through the above settings, the limiting of the connecting plate 8 is realized to prevent the connecting plate 8 from detaching from the groove wall of the groove 11 and the bump 21.

[0054] On the hole walls of both the through hole 111 and the connecting hole 9, a second flexible buffer layer 91 is pasted with glue. In this embodiment, the second flexible buffer layer 91 is made of polyethylene foam. In other embodiments, rubber can also be selected. Through the setting of the second flexible buffer layer 91, the flexible connection between the connecting plate 8 and the through hole 111 and the connecting hole 9 is realized. It is beneficial to reduce the situation that when the bottom beam 2 is pulled down subsequently, the external load acts concentratedly at the connection between the connecting plate 8 and the through hole 111 and the connection between the connecting plate 8 and the connecting hole 9, and thus it is beneficial to reduce the deformation and damage of the connecting plate 8.

[0055] The implementation principle of the third embodiment is that when connecting the bottom beam 2 and the link plate 1, while inserting the bump 21 at the top of the bottom beam 2 into the groove 11 at the bottom of the link plate 1, the through holes 111 on the side wall of the groove 11 are made to be opposite to the connecting holes 9 on the side surface of the bump 21 one by one. The connecting plates 8 are sequentially inserted into the through holes 111 and the connecting holes 9, and the bent section 81 of the connecting plate 8 is made to fit on the outside of the link plate 1, and the bent section 81 of the connecting plate 8 is welded and fixed to the outside of the link plate 1. Finally, the rivets 3 are sequentially driven into the side wall of the groove 11 and the bump 21 by a rivet gun.

[0056] In this application, while connecting the bump 21 and the groove 11 by the rivet 3, the connecting portion on the groove 11 and the connecting member on the bump 21 are connected and cooperated with each other to assist the rivet 3 in connecting and limiting the groove 11 and the bump 21, which is beneficial to improving the connection integrity of the groove 11 and the bump 21, and thus is beneficial to enabling the bottom beam 2 to be more stably installed on the link plate 1.

[0057] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A roller shutter door chain link plate and bottom beam connection structure, comprising a groove (11) formed at the bottom of the chain link plate (1) and a convex block (21) formed on the bottom beam (2), wherein the convex block (21) is embedded in the groove (11), and the groove wall of the groove (11) and the convex block (21) are connected by a plurality of rivets (3); characterized in that: The groove (11) is also provided with a connecting piece; the protrusion (21) is provided with a connecting portion corresponding to the connecting piece, and the connecting piece is connected and matched with the connecting portion.

2. The roller shutter door chain link plate and bottom beam connection structure according to claim 1, characterized in that: The connecting member comprises a hook member (4) protruding from the top groove wall of the groove (11), and the hook member (4) comprises a vertical section (41) and a horizontal section (42); the connecting portion comprises a connecting port (5) opened at the top of the protrusion (21), and the horizontal section (42) of the hook member (4) penetrates into the inner cavity of the protrusion (21) through the connecting port (5) and is arranged to abut against the top cavity wall of the inner cavity of the protrusion (21).

3. The roller shutter door chain link plate and bottom beam connection structure according to claim 1, characterized in that: The connecting piece comprises a connecting convex strip (6) protruding from a side groove wall of the groove (11); the connecting portion comprises a connecting groove (7) formed on a side surface of the convex block (21), the connecting groove (7) being open at both ends, and the connecting convex strip (6) being plugged into and fitted into the connecting groove (7).

4. The roller shutter door chain link plate and bottom beam connection structure according to claim 3, characterized in that: A fastening screw (10) is also provided between the protrusion (21) and the groove (11), and the fastening screw (10) is threadedly penetrated through the top groove wall of the groove (11) and the protrusion (21).

5. The roller shutter door chain link plate and bottom beam connection structure according to claim 3, characterized in that: A first flexible buffer layer (71) is laid in the connection groove (7).

6. The roller shutter door chain link plate and bottom beam connection structure according to claim 1, characterized in that: The connecting member comprises a connecting plate (8), and the connecting plate (8) is inserted into the side groove wall of the groove (11); the connecting portion comprises a connecting hole (9) opened on the side of the protrusion (21), and one end of the connecting plate (8) is inserted into the connecting hole (9).

7. The roller shutter door chain link plate and bottom beam connection structure according to claim 6, characterized in that: One end of the connecting plate (8) away from the connecting hole (9) is bent to form a bent section (81), and the bent section (81) of the connecting plate (8) is attached to and welded to the outer side of the chain link plate (1).

8. The roller shutter door chain link plate and bottom beam connection structure according to claim 6, characterized in that: The hole wall of the connection hole (9) is paved with a second flexible buffer layer (91).

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