A corner joint assembly for a door and window profile
By introducing interlocking slots and auxiliary fixing components into the corner connection components of door and window profiles, the problems of easy damage and difficulty in installation of the connection components are solved, achieving higher stability and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUYANG CHUANGYIJIA METAL PRODUCTS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing door and window profile corner connection components are prone to damage after prolonged use, causing the connection components to fall off. Furthermore, longer components are difficult to install and disassemble, resulting in inconvenience in use.
It adopts a plug-in slot and plug-in block design, combined with auxiliary fixing components, including trapezoidal blocks, limit rods and spring structures, and achieves limit fixing through knob operation, which enhances connection strength and stability.
It improves the stability of the connecting components, prevents them from falling off, simplifies the installation and disassembly process, and enhances ease of use.
Smart Images

Figure CN224432375U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of door and window profile technology, and in particular to a corner connection component for door and window profiles. Background Technology
[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, mullions, and sashes. They are often referred to as aluminum doors and windows. The corners of door and window profiles are often joined together using connecting components. In the use of conventional connecting components, two connectors are installed on the inner walls of two connecting frames respectively, and the two connectors are fixed together with bolts, thereby joining the two connecting frames.
[0003] The corner connector of door and window profiles is installed between two connecting frames. Conventional connectors are small in size, and the corners of the connecting frames are prone to damage after long-term use, which can cause the connector to fall off the connecting frame. On the other hand, if a longer connector is used, it is easy to make it difficult to install and remove, which causes inconvenience when using the connector. Utility Model Content
[0004] To address the issues of existing conventional connecting components being too small, causing damage to the corners of the connecting frame after prolonged use, leading to the component detaching from the frame, and using longer connecting components making installation and disassembly difficult, thus causing inconvenience during use, this application provides a corner connecting component for door and window profiles.
[0005] The corner connection component for door and window profiles provided in this application adopts the following technical solution:
[0006] A corner connection component for door and window profiles includes a first connecting frame and a second connecting frame. The first connecting frame and the second connecting frame are fixed together by a first connector and a second connector. One end of the first connecting frame and the second connecting frame is provided with a slot. One end of the first connector and the second connector is provided with a plug block that matches the slot. The plug block has a fixing cavity inside, and an auxiliary fixing component is installed in the fixing cavity.
[0007] Preferably, the first connector and the second connector are respectively provided with through grooves, and a plurality of first bolts are fixedly installed between the two through grooves.
[0008] Preferably, the end of the plug block away from the first connector and the second connector has a threaded hole, and the first connecting frame and the second connecting frame each have a connecting hole corresponding to the position of the threaded hole on one side. A second bolt is installed through the connecting hole and the threaded hole.
[0009] Preferably, the auxiliary fixing component includes a trapezoidal block that is slidably installed in the fixing cavity. Multiple through holes are symmetrically opened on both sides of the fixing cavity. Limiting rods are slidably installed inside each of the through holes. Multiple limiting holes that are adapted to the limiting rods are symmetrically opened on the inner wall of the insertion groove. A stop block adapted to the trapezoidal block is provided at one end of the limiting rod, and a spring is sleeved on the outside. One end of the spring is fixedly connected to the stop block, and the other end is fixedly connected to the inner wall of the fixing cavity.
[0010] Preferably, the trapezoidal block has a threaded hole in the middle, and a movable shaft is installed through the threaded hole. The surface of the movable shaft has a threaded groove that is helically connected to the threaded hole. One end of the first connecting frame and the second connecting frame is provided with an L-shaped cavity. One end of the movable shaft is rotatably connected to the fixed cavity, and the other end extends into the L-shaped cavity to install a worm gear. A worm is installed on one side of the worm gear for transmission. One end of the worm extends through the first connecting frame and the second connecting frame and is provided with a knob.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] The corner connection assembly of this door and window profile, by setting auxiliary fixing components, further assists in limiting and fixing, thereby improving the connection strength between the two and also increasing the connection length between the first and second connecting parts. This effectively prevents the first and second connecting parts from detaching from the inner wall of the connecting frame when the first and second connecting frames are damaged, thus improving the overall installation stability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;
[0015] Figure 3 In this utility model Figure 2 Enlarged view of point A.
[0016] Explanation of reference numerals in the attached drawings: 1. First connecting frame; 2. Second connecting frame; 3. First connector; 4. Second connector; 5. Insertion slot; 6. Insertion block; 7. First bolt; 8. Second bolt; 9. Trapezoidal block; 10. Limiting rod; 11. Stop block; 12. Spring; 13. Movable shaft; 14. L-shaped cavity; 15. Worm gear; 16. Worm. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1 to 3 This utility model provides a technical solution:
[0019] A corner connection component for door and window profiles includes a first connecting frame 1 and a second connecting frame 2. The first connecting frame 1 and the second connecting frame 2 are fixed together by a first connector 3 and a second connector 4. One end of the first connecting frame 1 and the second connecting frame 2 is provided with a plug groove 5. One end of the first connector 3 and the second connector 4 is provided with a plug block 6 that matches the plug groove 5. The plug block 6 has a fixing cavity inside, and an auxiliary fixing component is installed in the fixing cavity.
[0020] During installation, the insertion blocks 6 at one end of the first connector 3 and the second connector 4 are aligned with the insertion slots 5 at one end of the first connecting frame 1 and the second connecting frame 2, respectively, and inserted into the interior. The insertion blocks 6 are then fixed between the first connecting frame 1 and the second connecting frame 2, respectively. The auxiliary fixing components are used for further auxiliary limiting and fixing to improve the connection strength between the two and also increase the connection length between the first connector 3 and the second connector 4. This effectively prevents the first connector 2 and the second connector 3 from detaching from the inner wall of the connecting frame 1 if the first connecting frame 1 and the second connecting frame 2 are damaged, thereby improving the overall installation stability.
[0021] The first connector 3 and the second connector 4 are respectively provided with through grooves, and a plurality of first bolts 7 are fixedly installed between the two through grooves. The first bolts 7 pass through the first connector 3 and the second connector 4 to improve the stability between the first connector 3 and the second connector 4.
[0022] The plug-in block 6 has a threaded hole at one end away from the first connector 3 and the second connector 4. The first connecting frame 1 and the second connecting frame 2 each have a connecting hole corresponding to the position of the threaded hole. A second bolt 8 is installed through the connecting hole and the threaded hole. The second bolt 8 passes through the connecting hole and extends into the threaded hole to achieve the connection and fixation between the plug-in block 6 and the first connecting frame 1 and the second connecting frame 2.
[0023] The auxiliary fixing component includes a trapezoidal block 9 that is slidably installed in the fixing cavity. Multiple through holes are symmetrically opened on both sides of the fixing cavity. Limiting rods 10 are slidably installed inside each through hole. Multiple limiting holes that are adapted to the limiting rods 10 are symmetrically opened on the inner wall of the insertion groove. A stop block 11 adapted to the trapezoidal block 9 is provided at one end of the limiting rod 10, and a spring 12 is sleeved on the outside. One end of the spring 12 is fixedly connected to the stop block 11, and the other end is fixedly connected to the inner wall of the fixing cavity.
[0024] A threaded hole is provided in the middle of the trapezoidal block 9, and a movable shaft 13 is installed through the threaded hole. The surface of the movable shaft 13 is provided with a threaded groove that is connected to the threaded hole for helical transmission. One end of the first connecting frame and the second connecting frame 2 is provided with an L-shaped cavity 14. One end of the movable shaft 13 is rotatably connected to the fixed cavity, and the other end extends into the L-shaped cavity 14 to install a worm gear 15. A worm 16 is installed on one side of the worm gear 15 for transmission. One end of the worm 16 extends through the outside of the first connecting frame 1 and the second connecting frame 2 and is provided with a knob.
[0025] During operation, the worm gear 16 is rotated by the knob, which drives the worm wheel 15 and the movable shaft 13 to rotate synchronously. With the cooperation of the threaded groove, the trapezoidal block 9 moves linearly along the movable shaft 13. The trapezoidal block 9 presses the limit rods 10 on both sides and the spring 12, forcing multiple limit rods 10 to be inserted into the limit holes respectively, which plays a role in limiting and fixing, and improves the installation strength. Similarly, when disassembling, the knob can be rotated in the opposite direction to drive the trapezoidal block 9 to move in the opposite direction and stop pressing the limit rods 10. At this time, the spring 12 restores its elasticity and drives the limit rods 10 to retract into the movable shaft 13, thereby releasing the limit.
[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A corner connection component for door and window profiles, characterized in that: It includes a first connecting frame (1) and a second connecting frame (2). The first connecting frame (1) and the second connecting frame (2) are fixed together by a first connector (3) and a second connector (4). One end of the first connecting frame (1) and the second connecting frame (2) is provided with a plug-in groove (5). One end of the first connector (3) and the second connector (4) is provided with a plug-in block (6) that matches the plug-in groove (5). The plug-in block (6) has a fixing cavity inside, and an auxiliary fixing component is installed in the fixing cavity.
2. The corner connection assembly for door and window profiles according to claim 1, characterized in that: The first connector (3) and the second connector (4) are respectively provided with through grooves, and a plurality of first bolts (7) are fixedly installed between the two through grooves.
3. The corner connection assembly for door and window profiles according to claim 2, characterized in that: The plug block (6) has a threaded hole at one end away from the first connector (3) and the second connector (4). The first connecting frame (1) and the second connecting frame (2) have connecting holes on one side corresponding to the positions of the threaded holes. A second bolt (8) is installed through the connecting hole and the threaded hole.
4. The corner connection assembly for door and window profiles according to claim 3, characterized in that: The auxiliary fixing component includes a trapezoidal block (9) that is slidably installed in the fixing cavity. Multiple through holes are symmetrically opened on both sides of the fixing cavity. Limiting rods (10) are slidably installed inside each of the through holes. Multiple limiting holes that are adapted to the limiting rods (10) are symmetrically opened on the inner wall of the insertion groove. A stop block (11) adapted to the trapezoidal block (9) is provided at one end of the limiting rod (10), and a spring (12) is sleeved on the outside. One end of the spring (12) is fixedly connected to the stop block (11), and the other end is fixedly connected to the inner wall of the fixing cavity.
5. A corner connection assembly for door and window profiles according to claim 4, characterized in that: The trapezoidal block (9) has a threaded hole in the middle, and a movable shaft (13) is installed through the threaded hole. The movable shaft (13) has a threaded groove on its surface that is connected to the threaded hole in a helical transmission. One end of the first connecting frame and the second connecting frame (2) is provided with an L-shaped cavity (14). One end of the movable shaft (13) is rotatably connected to the fixed cavity, and the other end extends into the L-shaped cavity (14) where a worm gear (15) is installed. A worm (16) is installed on one side of the worm gear (15) in a meshing transmission. One end of the worm (16) extends through the first connecting frame (1) and the second connecting frame (2) and is provided with a knob.