Window frame connecting structure
By setting splicing bevels at the horizontal and vertical ends of the aluminum alloy window frame, and utilizing the design of positioning corner brackets and sealing components, the problem of window frame installation gaps is solved, achieving a tight connection and waterproof effect.
Patent Information
- Application Number
- CN202520498962.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-21
AI Technical Summary
During the installation of existing aluminum alloy window frames, due to the precision issues in the processing of the profiles, it is difficult to ensure a tight fit between the horizontal and vertical frames, resulting in installation gaps and problems such as water seepage and air leakage.
The ends of the horizontal and vertical frames are beveled, and the positioning pins are used in conjunction with the sealing components. The design of sliding nuts and support pins ensures that the positioning pins can tightly connect the horizontal and vertical frames, avoiding installation gaps.
It achieves a tight splicing of the horizontal and vertical frames, avoiding installation gaps and improving the sealing and waterproof performance of the window frame.
Smart Images

Figure CN223937968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window structure technology, specifically a window frame connection structure. Background Technology
[0002] Currently, aluminum alloy window frames are widely used in the market. Existing aluminum alloy window frames are composed of horizontal frames, vertical frames, and corner brackets. The corner brackets are usually connected to the horizontal and vertical frames using a pin-and-glue process to ensure a tight fit between the door / window and the wall. However, due to limitations in the precision of the profile processing, it is difficult to ensure a tight fit between the horizontal and vertical frames when aligning the profile with the threaded holes of the corner bracket. This can easily create installation gaps, leading to water seepage and air leakage in the window frame. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a window frame connection structure that solves the problems mentioned in the background section.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A window frame connection structure includes a horizontal frame and a vertical frame. The ends of the horizontal and vertical frames have beveled joints. A positioning bracket connects the horizontal and vertical frames. A connecting cavity is formed on each horizontal and vertical frame. A pin hole is formed on the side wall of each connecting cavity, and a positioning pin is inserted into the pin hole. A sealing assembly is provided at the end of the positioning bracket. The sealing assembly includes a mounting bracket, a sliding nut, and a support pin. The mounting bracket is fixed to the end of the positioning bracket. Several sliding columns are provided on the mounting bracket. The sliding nut is sleeved on the sliding columns. The positioning pin is threaded through the sliding nut. A pin through hole is formed on the upper side of the sliding nut. The support pin is slidably installed in the pin through hole, and its two ends abut against the positioning bracket and the positioning pin, respectively.
[0008] Preferably, the positioning angle code has a right-angled cross-section, and its two ends are respectively inserted into the connecting cavities of the horizontal frame and the vertical frame. Both ends of the positioning angle code are provided with mounting slots, and the upper and lower sides of the mounting slots are integrally formed with insertion slides. The mounting bracket slides through the insertion slides.
[0009] Preferably, the mounting frame includes a top mounting plate and a bottom mounting plate, and the top mounting plate and the bottom mounting plate are provided with guide grooves for interlocking slides, and the sliding column is connected between the top mounting plate and the bottom mounting plate.
[0010] Preferably, a support spring is fitted on the sliding column, and the support spring abuts against the sliding nut and the mounting base plate.
[0011] Preferably, the lower end of the support pin is set as an arc surface, the lower end of the support pin slides against the side wall of the positioning pin, a limit ring is formed in the middle of the support pin, a limit ring groove is formed on the upper side of the sliding nut to cooperate with the limit ring, and a pin cone is provided at the upper end of the support pin, the pin cone abuts against the lower side wall of the mounting slot.
[0012] (III) Beneficial Effects
[0013] This utility model provides a window frame connection structure. It has the following beneficial effects:
[0014] 1. In this utility model, the sliding nut is always in contact with the lower side of the mounting top plate under the support of the support spring. At this time, the first through hole is aligned with the threaded hole of the sliding nut. After the positioning pin is inserted, the positioning pin abuts against the arc surface of the lower end of the support pin, so that the support pin slides upward to abut against the positioning bracket, which moves upward relative to the first through hole, so that the splicing slope of the horizontal frame and the vertical frame fits tightly together, avoiding installation gaps. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a window frame connection structure according to the present invention;
[0016] Figure 2 This is a partial sectional view of a window frame connection structure according to this utility model;
[0017] Figure 3 This is a schematic diagram of the positioning corner code in this utility model.
[0018] In the diagram: 1. Horizontal frame; 2. Vertical frame; 3. Splicing bevel; 4. Positioning pin; 5. Positioning bracket; 6. Mounting slot; 7. Inserting slide bar; 8. Mounting bracket; 9. Sliding nut; 10. Support pin; 11. Sliding column; 12. Supporting spring; 13. Limiting ring. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] This utility model embodiment provides a window frame connection structure, such as Figure 1-3As shown, it includes a horizontal frame 1 and a vertical frame 2. The ends of the horizontal frame 1 and the vertical frame 2 are provided with splicing slopes 3. The inclination of the splicing slopes 3 is set to 45° so that the ends of the horizontal frame 1 and the vertical frame 2 can be spliced into a complete plane. The horizontal frame 1 and the vertical frame 2 are provided with connecting cavities. The side wall of the connecting cavity is provided with a pin hole 1. A positioning pin 4 is inserted into the pin hole 1.
[0021] A positioning bracket 5 connects the horizontal frame 1 and the vertical frame 2. The positioning bracket 5 has a right-angled cross-section. Both ends of the positioning bracket 5 are inserted into the second pin hole, which aligns with the first pin hole in the connecting cavity of the horizontal frame 1 and the vertical frame 2. Each end of the positioning bracket 5 has a mounting slot 6. Insertion slides 7 are integrally formed on the upper and lower sides of the mounting slot 6. A sealing assembly is slidably installed within the mounting slot 6. The sealing assembly includes a mounting bracket 8, a sliding nut 9, and a support pin 10. The mounting bracket 8 includes a mounting top plate, a mounting bottom plate, and a sliding column 11. The upper end of the mounting top plate and the lower end of the mounting bottom plate have guide grooves that slide with the insertion slides 7. The width of the mounting bracket 8 is equal to the width of the positioning bracket 5. After the mounting bracket 8 passes through the guide groove into the insert slide bar 7, the inner wall of the connecting cavity will abut against both sides of the mounting slot hole 6 and against the mounting bracket 8, so that the mounting bracket 8 is placed in the center of the mounting slot hole 6, avoiding the mounting bracket 8 from being misaligned. The mounting top plate has a top plate hole in the middle. The sliding nut 9 is sleeved on the sliding column 11. The sliding column 11 is sleeved with a support spring 12. The support spring 12 abuts between the sliding nut 9 and the mounting base plate. Under the action of the support spring 12, the sliding nut 9 always abuts against the lower side of the mounting top plate, so that the threaded hole, pin hole one and pin hole two of the sliding nut 9 are aligned. The positioning pin 4 is threaded through the sliding nut 9, which facilitates the assembly of the positioning pin 4.
[0022] The upper side of the sliding nut 9 has a through hole for a pin 10, and the upper side of the sliding nut 9 has a groove for a limiting ring 13 that mates with the limiting ring 13. The groove for the limiting ring 13 is concentric with the positioning through hole. The supporting pin 10 is slidably installed in the through hole of the pin 10. The lower end of the supporting pin 10 is an arc surface. The lower end of the supporting pin 10 slides and abuts against the side wall of the positioning pin 4. A limiting ring 13 is provided in the middle of the supporting pin 10. The upper side of the sliding nut 9 has a groove for a limiting ring 13 that mates with the limiting ring 13. The upper end of the supporting pin 10 is provided with a pin 10 cone. The pin 10 cone abuts against the lower side wall of the mounting slot 6.
[0023] Working principle:
[0024] In this invention, the sealing component is installed in the mounting slot 6 of the positioning bracket 5, and the end of the positioning bracket 5 is inserted into the connecting cavity of the transverse frame 1 or the longitudinal frame 2. The sidewalls of the connecting cavity are sealed on both sides of the mounting slot 6. At the same time, under the support of the support spring 12, the sliding nut 9 is always at the top of the mounting bracket 8. At this time, the threaded hole of the sliding nut 9 is aligned with the second through-hole of the positioning bracket 5. The connecting cavity of the transverse frame 1 or the longitudinal frame 2 is inserted into the positioning bracket 5. The splicing inclined surfaces 3 inserted into the transverse frame 1 are aligned with each other and adjusted to align the second through-hole with the first through-hole. Then, the screw is tightened. The positioning pin 4 abuts against the arc surface at the bottom of the through hole of the ejector pin 10. As the screwing depth of the positioning pin 4 increases, the ejector pin 10 can be pushed upward. Due to the action of the positioning pin 4, the sliding nut 9 can always be fixed to the through hole, that is, the sliding nut 9 is fixed to the horizontal frame 1 or the vertical frame 2. The ejector pin 10 slides upward relative to the sliding nut 9, which will push the positioning bracket 5 upward as a whole. That is, the positioning bracket 5 can generate a vertical pulling force on the horizontal frame 1 or the vertical frame 2, making the splicing of the horizontal frame 1 or the vertical frame 2 tighter and avoiding splicing gaps.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A window frame connection structure, comprising a horizontal frame and a vertical frame, wherein the ends of the horizontal frame and the vertical frame are provided with splicing bevels, characterized in that: A positioning bracket connects the horizontal frame and the vertical frame. A connecting cavity is formed on the horizontal frame and the vertical frame. A pin hole is formed on the side wall of the connecting cavity, and a positioning pin is inserted into the pin hole. A sealing assembly is provided at the end of the positioning bracket. The sealing assembly includes a mounting bracket, a sliding nut, and a supporting pin. The mounting bracket is fixed to the end of the positioning bracket. Several sliding columns are provided on the mounting bracket. The sliding nut is sleeved on the sliding columns. The positioning pin is threaded through the sliding nut. A pin through hole is formed on the upper side of the sliding nut. The supporting pin is slidably installed in the pin through hole, and its two ends abut against the positioning bracket and the positioning pin, respectively.
2. The window frame connection structure according to claim 1, characterized in that: The positioning angle code has a right-angled cross section. The two ends of the positioning angle code are respectively inserted into the connecting cavity of the horizontal frame and the vertical frame. The two ends of the positioning angle code are provided with mounting slots. The upper and lower sides of the mounting slots are integrally formed with insertion slides. The mounting bracket slides through the insertion slides.
3. The window frame connection structure according to claim 2, characterized in that: The mounting frame includes a top mounting plate and a bottom mounting plate. The top mounting plate and the bottom mounting plate are provided with guide grooves for inserting sliding strips. The sliding column is connected between the top mounting plate and the bottom mounting plate.
4. The window frame connection structure according to claim 3, characterized in that: A support spring is fitted onto the sliding column, and the support spring abuts against the sliding nut and the mounting base plate.
5. A window frame connection structure according to claim 4, characterized in that: The lower end of the support pin is set as an arc surface. The lower end of the support pin slides and abuts against the side wall of the positioning pin. A limit ring is opened in the middle of the support pin. A limit ring groove that mates with the limit ring is opened on the upper side of the sliding nut. A pin cone is provided at the upper end of the support pin. The pin cone abuts against the lower side wall of the mounting slot.