A mullion connection structure for doors and windows

Abstract

This utility model relates to a mullion connection structure for doors and windows, belonging to the field of building door and window technology. The mullion connection structure includes a door / window mullion (1), a main profile (2), a first connector (3), and a second connector (4). One end of the first connector (3) and one end of the second connector (4) are respectively connected to both ends of the main profile (2). The other end of the first connector (3) and the other end of the second connector (4) are respectively connected to the door / window mullion (1). Both the first connector (3) and the second connector (4) have an adhesive layer inside. The adhesive flows into the connection point of the connector through the injection hole on the mullion, and then flows into the cavity through the guide groove, achieving a two-way seal between the inside and outside of the profile. This not only seals the outer surface of the profile connection but also achieves a sealing effect inside the profile.

Description

Technical Field

[0001] This utility model belongs to the field of building door and window technology. Specifically, this utility model relates to a mullion connection structure for doors and windows. Background Technology

[0002] In door and window manufacturing, mullion connectors are used to connect mullions to the frame and between mullions themselves. With the rise of home decoration system doors and windows in recent years, the mullion + glue injection method has become increasingly accepted by the market. However, in the current technology, when connecting mullions, glue is only applied to the surface of the joint, or an injection-molded sealant is used to fasten to the outside of the mullion joint and then glue is injected with a glue gun. However, the above methods only achieve a seal on the outer surface of the profile joint, and the inside of the profile is not sealed. Over time, there is a risk of seal failure at the mullion joint.

[0003] A search revealed that Chinese patent CN212249722U, published on December 29, 2020, discloses a connection structure between a mullion and a frame, or between mullions, in doors and windows. This structure involves a first connecting block body connecting the first and second connecting frame profiles. At least one inclined connecting hole, penetrating the corresponding side and bottom surface, is provided on one or both sides of the first connecting block body. A fastening element is installed within the connecting hole, which can secure the second connecting frame profile and the first connecting block body together, providing a continuous pre-clamping force to the first connecting block body and the second connecting frame. However, this structure cannot achieve a sealing effect inside the profiles, and over time, there is a risk of seal failure at the mullion connection. Utility Model Content

[0004] The present invention aims to provide a mullion connection structure for a door or window with an internal cavity seal.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A mullion connection structure for a door and window includes a door and window mullion, a main profile, a first connector and a second connector, one end of the first connector and one end of the second connector are respectively connected to both ends of the main profile, and the other ends of the first connector and the second connector are respectively connected to the door and window mullion.

[0007] The first connector includes a first connector seat, a first cavity inside the first connector seat, a first nut inside the first cavity, a first set bolt inside the first nut, and one end of the first set bolt is riveted to one end of the main profile; the second connector includes a second connector seat, a second cavity inside the second connector seat, a second nut inside the second cavity, a second set bolt inside the second nut, and the second set bolt is riveted to the other end of the main profile.

[0008] Both the first cavity and the second cavity are provided with an adhesive layer.

[0009] The first connector is provided with a first adhesive guide groove, which is located on one side of the first cavity. The second connector is provided with a second adhesive guide groove, which is located on one side of the second cavity.

[0010] The first connecting seat has a first through hole at one end near the door / window stile, and the second connecting seat has a second through hole at one end near the door / window stile. The door / window stile has a first pin hole and a second pin hole. A first pin is provided in the first pin hole, and the first pin is riveted to the first through hole. A second pin is provided in the second pin hole, and the second pin is riveted to the second through hole.

[0011] One end of the main profile is provided with a first groove, one end of the first connecting seat is provided with a boss that mates with the first groove, the other end of the main profile is provided with a connecting plate, the connecting plate is provided with a second groove, and one side of the second connecting seat is provided with a hook that mates with the second groove.

[0012] A first glue injection hole is provided on one side of the first pin hole, and a second glue injection hole is provided on one side of the second pin hole.

[0013] An elastic gasket is provided between one end of the second connector and one end of the main profile.

[0014] A molded sealing element is provided on one side of the mullion of the door and window. The molded sealing element includes a base plate, which is attached to one end of the mullion. The base plate is provided with a mullion injection hole.

[0015] The boss is T-shaped, the first connecting seat is a square block, the second connecting seat is a square block, and the cross-section of the door and window mullion and the main profile is square.

[0016] The technical effect of this utility model is as follows: by setting glue in the cavity of the first connecting seat and the second connecting seat, not only is the outer surface of the profile connection sealed, but also the inside of the profile is sealed. The first connecting seat and the second connecting seat are connected to the main profile by set bolts to achieve fixation. The first connecting seat and the second connecting seat are respectively fixed to the door and window mullion by pins. One end of the door and window mullion is provided with an injection-molded sealing element for glue injection. The glue will flow into the connection of the connecting parts through the glue injection hole on the mullion, and then the glue will flow into the cavity through the glue guide groove to achieve bidirectional sealing of the inside and outside of the profile. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a schematic diagram of a mullion connection structure for a door or window.

[0019] Figure 2 for Figure 1 Exploded view.

[0020] Figure 3 for Figure 1 Schematic diagram of the first connecting component.

[0021] Figure 4 for Figure 1 Schematic diagram of the second connecting component.

[0022] Figure 5 for Figure 1 Assembly diagram of the main profile.

[0023] Figure 6 for Figure 1 A schematic diagram of the structure of the central door and window sill.

[0024] The markings in the diagram are as follows: 1. Door / window mullion; 2. Main profile; 3. First connector; 4. Second connector; 5. First cavity; 6. First nut; 7. First set bolt; 8. Second cavity; 9. Second nut; 10. Second set bolt; 11. First through hole; 12. First glue guide groove; 13. Second through hole; 14. Second glue guide groove; 15. First pin hole; 16. Second pin hole; 17. First pin; 18. Second pin; 19. Connecting plate; 20. First groove; 21. Boss; 22. Second groove; 23. Hook; 24. First injection hole; 25. Second injection hole; 26. Elastic gasket; 27. Injection molded seal; 28. Base plate; 29. ​​Mullion injection hole; 30. First connecting seat; 31. Second connecting seat. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0026] like Figure 1 As shown, a mullion connection structure for a door and window includes a door / window mullion 1, a main profile 2, a first connector 3, and a second connector 4. One end of the first connector 3 and one end of the second connector 4 are respectively connected to both ends of the main profile 2, and the other end of the first connector 3 and the other end of the second connector 4 are respectively connected to the door / window mullion 1. By applying adhesive within the cavities of the first connector 3 and the second connector 4, not only is the outer surface of the profile connection sealed, but the interior of the profile is also sealed.

[0027] like Figure 2As shown, the first connector 3 includes a first connector 30, a first cavity 5 within the first connector 30, a first nut 6 within the first cavity 5, and a first set bolt 7 within the first nut 6. One end of the first set bolt 7 is riveted to one end of the main profile 2. The second connector 4 includes a second connector 31, a second cavity 8 within the second connector 31, a second nut 9 within the second cavity 8, and a second set bolt 10 within the second nut 9. The second set bolt 10 is riveted to the other end of the main profile 2. In this embodiment, both the first set bolt 7 and the second set bolt 10 have a nominal diameter of 5mm. The first set bolt 7 and the second set bolt 10 are riveted to the main profile 2, the first nut 6 with a nominal diameter of 5mm is placed in the first cavity 5, and the second nut 9 with a nominal diameter of 5mm is placed in the second cavity 8.

[0028] Both the first cavity 5 and the second cavity 8 are equipped with an adhesive layer. The adhesive flows into the joint of the connector through the injection hole on the door and window stile 1, and then flows into the cavity through the adhesive guide groove, achieving a two-way seal between the inside and outside of the profile.

[0029] like Figure 3 and Figure 4 As shown, the first connecting seat 30 is provided with a first adhesive guide groove 12, which is located on one side of the first cavity 5. The second connecting seat 31 is provided with a second adhesive guide groove 14, which is located on one side of the second cavity 8. The first adhesive guide groove 12 is located on one side of the first cavity 5, through which adhesive enters the first cavity 5. The second adhesive guide groove 14 is located on one side of the second cavity 8, through which adhesive enters the second cavity 8.

[0030] The first connecting seat 30 has a first through hole 11 at one end near the door / window stile 1, and the second connecting seat 31 has a second through hole 13 at one end near the door / window stile 1. The door / window stile 1 has a first pin hole 15 and a second pin hole 16. A first pin 17 is installed in the first pin hole 15 and is riveted to the first through hole 11. A second pin 18 is installed in the second pin hole 16 and is riveted to the second through hole 13. The door / window stile 1 and the first connecting piece 3 are fixed by the first pin 17, and the door / window stile 1 and the second connecting piece 4 are fixed by the second pin 18. The first through hole 11 on the first connecting piece 3 allows the first set bolt 7 to be inserted through the first through hole 11, and the first set bolt 7 is threadedly connected to the first nut 6. The second through hole 13 on the second connecting piece 4 allows the solid second set bolt 10 to be inserted through the second through hole 13, and the second set bolt 10 is threadedly connected to the second nut 9.

[0031] like Figure 5As shown, one end of the main profile 2 has a first groove 20, one end of the first connector 3 has a boss 21 that mates with the first groove 20, and the other end of the main profile 2 has a connecting plate 19 with a second groove 22. One side of the second connector 4 has a hook 23 that mates with the second groove 22. The boss 21 at the end of the first connector 3 mates with the first groove 20 of the main profile 2, and the hook 23 of the second connector 4 mates with the second groove 22 of the connecting plate 19, thus fixing the first connector 3 and the second connector 4 to the main profile 2 respectively.

[0032] like Figure 6 As shown, a first glue injection hole 24 is provided on one side of the first pin hole 15, and a second glue injection hole 25 is provided on one side of the second pin hole 16. The glue gun injects glue into the first connector 3 and the second connector 4 through the first glue injection hole 24 and the second glue injection hole 25, respectively.

[0033] An elastic gasket 26 is provided between one end of the second connector 4 and one end of the main profile 2. The elastic gasket 26 is provided between the second connector 4 and the main profile 2 to ensure that the second connector 4 and the main profile 2 are firmly fixed.

[0034] A molded seal 27 is provided on one side of the door / window stile 1. The molded seal 27 includes a base plate 28, which is attached to one end of the door / window stile 1. The base plate 28 is provided with glue injection holes 29 for the door / window stile 1. The molded seal 27 is used to be placed at the corner of the door / window stile 1. The glue injection holes 29 of the base plate 28 are aligned with the first glue injection hole 24 and the second glue injection hole 25 in sequence. Then, glue is injected into the first glue injection hole 24 and the second glue injection hole 25 through a glue gun.

[0035] The boss 21 is T-shaped, the first connecting seat 30 is a square block, the second connecting seat 31 is a square block, and the cross-section of the mullion 1 and the main profile 2 in the door and window is square. The T-shaped boss 21 and the main profile 2 are more firmly fixed, and the cross-section of the mullion 1 and the main profile 2 in the door and window is square.

[0036] The working principle of this utility model is as follows: A mullion connection structure for doors and windows includes a door / window mullion 1, a main profile 2, a first connector 3, and a second connector 4. One end of the first connector 3 and one end of the second connector 4 are respectively connected to both ends of the main profile 2. The other ends of the first connector 3 and the second connector 4 are respectively connected to the door / window mullion 1. The first connector 3 has a first cavity 5, a first nut 6, and a first set bolt 7, one end of which is riveted to one end of the main profile 2. The second connector 4 has a second cavity 8, a second nut 9, and a second set bolt 10, the second set bolt 10 of which is riveted to the other end of the main profile 2. Adhesive is provided in both the first cavity 5 and the second cavity 8. By applying adhesive within the cavities of the first connector 3 and the second connector 4, not only is the outer surface of the profile connection sealed, but the interior of the profile is also sealed. The adhesive flows into the connection of the connectors through the injection hole on the door / window stile 1, and then flows into the cavity through the guide groove, achieving a two-way seal between the inside and outside of the profile. The first connector 3 has a first through hole 11 at one end and a first guide groove 12 at the other end. The second connector 4 has a second through hole 13 at one end and a second guide groove 14 at the other end. The first through hole 11 on the first connector 3 allows the first set bolt 7 to be inserted, and the first set bolt 7 is threadedly connected to the first nut 6. The second through hole 13 on the second connector 4 allows the solid second set bolt 10 to be inserted, and the second set bolt 10 is threadedly connected to the second nut 9. The door / window stile 1 has a first pin hole 15 and a second pin hole 16. A first pin 17 is installed in the first pin hole 15 and is riveted to a first through hole 11. A second pin 18 is installed in the second pin hole 16 and is riveted to a second through hole 13. The door / window stile 1 and the first connecting member 3 are fixed by the first pin 17, and the door / window stile 1 and the second connecting member 4 are fixed by the second pin 18. One end of the main profile 2 has a first groove 20, and one end of the first connecting member 3 has a boss 21 that mates with the first groove 20. The other end of the main profile 2 has a connecting plate 19 with a second groove 22. One side of the second connecting member 4 has a hook 23 that mates with the second groove 22. The boss 21 at the end of the first connecting member 3 mates with the first groove 20 of the main profile 2, and the hook 23 of the second connecting member 4 mates with the second groove 22 of the connecting plate 19, thus fixing the first connecting member 3 and the second connecting member 4 to the main profile 2 respectively. A first glue injection hole 24 is provided on one side of the first pin hole 15, and a second glue injection hole 25 is provided on one side of the second pin hole 16. The glue gun injects glue into the first connector 3 and the second connector 4 through the first glue injection hole 24 and the second glue injection hole 25, respectively.

[0037] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A mullion connection structure for doors and windows, characterized in that: It includes a door and window stile (1), a main profile (2), a first connector (3) and a second connector (4). One end of the first connector (3) and one end of the second connector (4) are respectively connected to both ends of the main profile (2), and the other end of the first connector (3) and the other end of the second connector (4) are respectively connected to the door and window stile (1).

2. The mullion connection structure for a door and window according to claim 1, characterized in that: The first connector (3) includes a first connector (30), a first cavity (5) is provided in the first connector (30), a first nut (6) is provided in the first cavity (5), a first set bolt (7) is provided in the first nut (6), and one end of the first set bolt (7) is riveted to one end of the main profile (2); the second connector (4) includes a second connector (31), a second cavity (8) is provided in the second connector (31), a second nut (9) is provided in the second cavity (8), a second set bolt (10) is provided in the second nut (9), and the other end of the second set bolt (10) is riveted to the main profile (2).

3. The mullion connection structure for a door and window according to claim 2, characterized in that: Both the first cavity (5) and the second cavity (8) are provided with an adhesive layer.

4. The mullion connection structure for a door and window according to claim 3, characterized in that: The first connector (30) is provided with a first adhesive guide groove (12), which is located on one side of the first cavity (5). The second connector (31) is provided with a second adhesive guide groove (14), which is located on one side of the second cavity (8).

5. The mullion connection structure for a door and window according to claim 4, characterized in that: The first connecting seat (30) has a first through hole (11) at one end near the door and window stile (1), and the second connecting seat (31) has a second through hole (13) at one end near the door and window stile (1). The door and window stile (1) has a first pin hole (15) and a second pin hole (16). The first pin hole (15) contains a first pin (17), which is riveted to the first through hole (11). The second pin hole (16) contains a second pin (18), which is riveted to the second through hole (13).

6. The mullion connection structure for a door and window according to claim 5, characterized in that: The main profile (2) has a first groove (20) at one end, and the first connecting seat (30) has a boss (21) that mates with the first groove (20) at one end. The main profile (2) has a connecting plate (19) at the other end, and the connecting plate (19) has a second groove (22). The second connecting seat (31) has a hook (23) that mates with the second groove (22) on one side.

7. The mullion connection structure for a door and window according to claim 6, characterized in that: A first glue injection hole (24) is provided on one side of the first pin hole (15), and a second glue injection hole (25) is provided on one side of the second pin hole (16).

8. A mullion connection structure for a door or window according to any one of claims 1-7, characterized in that: An elastic gasket (26) is provided between one end of the second connector (4) and one end of the main profile (2).

9. The mullion connection structure for a door and window according to claim 8, characterized in that: A molded seal (27) is provided on one side of the door and window mullion (1). The molded seal (27) includes a base plate (28). The base plate (28) is attached to one end of the door and window mullion (1). The base plate (28) is provided with a mullion injection hole (29).

10. A mullion connection structure for a door or window according to any one of claims 6-7, characterized in that: The boss (21) is T-shaped, the first connecting seat (30) is a square block, the second connecting seat (31) is a square block, and the cross-section of the door and window mullion (1) and the main profile (2) is square.

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