Expansion type connecting structure for doors and windows

Abstract

The utility model provides an expansion type connecting structure for doors and windows, which comprises a first section bar and a second section bar which are mutually spliced, and an expansion structure and an adjusting structure are arranged between the first section bar and the second section bar, the expansion structure can expand to enable the first section bar and the second section bar to be tightly connected, and the adjusting structure is used for adjusting the expansion degree of the expansion structure. After installation, connection is tighter, gaps are not prone to being generated, and splicing is rapid and accurate.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to an expansion-type connection structure for doors and windows. Background Technology

[0002] Existing sliding doors and folding doors generally have long upper and lower door frames. Longer door frame profiles are generally inconvenient to process. Therefore, for doors and windows exceeding 6 meters in length, it is generally necessary to splice two materials together. The splicing is mostly done by splicing boards and splicing internal plugs. However, slight deviations often occur, resulting in gaps in the appearance. This is especially true for sliding and folding doors, which can cause them to not open and slide smoothly. If affected by external forces, the plugs may also wobble inside, producing noise. Utility Model Content

[0003] To address the problems of the prior art, this utility model provides an expansion-type connection structure for doors and windows, which allows for rapid assembly and convenient and accurate installation.

[0004] The technical solution adopted is as follows:

[0005] An expansion-type connection structure for doors and windows includes a first profile and a second profile spliced ​​together. An expansion structure that can expand to securely connect the first profile and the second profile and an adjustment structure for adjusting the degree of expansion of the expansion structure are provided between the first profile and the second profile.

[0006] Furthermore, the expansion structure includes two mutually cooperating expansion blocks, and the two expansion blocks are provided with mutually cooperating adjustment grooves, which together form an adjustment hole through which the adjustment structure passes.

[0007] Furthermore, the adjustment structure is an adjustment bolt.

[0008] Furthermore, the first profile is provided with at least one adjusting bolt connecting the expansion structure and the first profile, and the second profile is provided with at least one adjusting bolt connecting the expansion structure and the second profile.

[0009] Furthermore, the diameter of the screw in the adjusting bolt is larger than the diameter of the adjusting hole in the expansion structure.

[0010] Furthermore, the adjusting bolt is located at the upper or lower end of the first or second profile.

[0011] Furthermore, the direction of the expansion force generated by the expansion structure is the same as the direction of the external force provided by the first and second profiles.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model provides an expansion-type connection structure for doors and windows. An expansion structure and an adjustment structure are set between the first and second profiles. The expansion structure consists of two mutually cooperating expansion blocks, and the adjustment structure consists of an adjustment bolt. The adjustment bolt passes through the adjustment hole provided on the expansion block, which can adjust the distance between the two expansion blocks, so that the expansion block and the first and second profiles are interference fit, making the first and second profiles tightly connected. The expansion block is close to the profile and does not easily shake or generate noise. Moreover, the expansion block is set inside, so there is less chance of gaps in the appearance of the splicing of the first and second profiles. Since the expansion is squeezed by the adjustment bolt, the size requirements of the expansion block are not too high. Compared with the prior art, the tolerance during processing is larger. Attached Figure Description

[0014] Figure 1 This is a disassembly diagram of the present invention;

[0015] Figure 2 This is a front view of a partially disassembled structure of this utility model;

[0016] Figure 3 This is a side view showing the disassembly of a portion of the structure of this utility model;

[0017] Figure 4 for Figure 3 A cross-sectional view facing direction AA;

[0018] Figure 5 for Figure 3 A cross-sectional view facing the CC direction;

[0019] Figure 6 This is a top view of the expansion structure;

[0020] Among them, there are first profile 1, second profile 2, expansion structure 3, expansion block 301, adjustment structure 4, and adjustment hole 5. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments.

[0022] refer to Figure 1-6 An expansion-type connection structure for doors and windows includes a first profile 1 and a second profile 2 spliced ​​together. An expansion structure 3 that can expand to fasten the first and second profiles is provided between the first profile 1 and the second profile 2, and an adjustment structure 4 that adjusts the degree of expansion of the expansion structure 3.

[0023] The expansion structure 3 includes two cooperating expansion blocks 301, each with a cooperating adjustment groove. These grooves form an adjustment hole 5 through which the adjustment structure 4 passes. The first and second profiles are hollow inside. One end of each expansion block is inserted into the first profile, and the other end into the second profile, connecting the first and second profiles. After the first and second profiles are joined, the adjustment structure ensures a tight connection between them.

[0024] The adjusting structure 4 is an adjusting bolt. The first profile 1 is provided with at least one adjusting bolt connecting the expansion structure 3 and the first profile 1, and the second profile 2 is provided with at least one adjusting bolt connecting the expansion structure 3 and the second profile 2. In this embodiment, one adjusting bolt is provided on each of the first profile 1 and the second profile 2.

[0025] The diameter of the adjusting bolt is larger than the diameter of the adjusting hole 5 in the expansion structure. The adjusting bolt passes through the adjusting hole 5. Because the diameter of the adjusting hole 5 is relatively small, the adjusting bolt enlarges the adjusting hole 5, thereby compressing the expansion structure 3. This increases the distance between the two expansion blocks, causing them to expand outwards and tightly adhere to the first and second profiles. This results in an interference fit between the expansion block 301 and the first and second profiles, achieving a secure connection. No gaps are created, affecting the appearance. Furthermore, because expansion is achieved through compression with the adjusting bolt, the dimensional requirements for the expansion blocks are not as stringent, allowing for a larger tolerance during processing compared to existing technologies.

[0026] The adjusting bolts are located at the upper or lower ends of the first and second profiles. When the adjusting bolts are located at the upper or lower ends, the expansion block expands to both sides, and the direction of the resulting expansion force is also towards both sides. The direction of the expansion force generated by the expansion structure 3 is the same as the direction of the external force on the first and second profiles. This utility model is mainly used for the upper beam of doors and windows. Generally, the upper beam of doors and windows is relatively long and requires splicing. The upper beam of doors and windows is fixed vertically by the vertical frame and is generally only subjected to external forces from both sides. Since the direction of the expansion force is towards both sides, it can precisely counteract the external forces generated from both sides, making the first and second profiles less susceptible to the influence of external forces, and preventing the expansion block from shaking and generating noise after expansion.

[0027] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. An expansion joint structure for doors and windows, comprising a first profile (1) and a second profile (2) spliced ​​together, characterized in that: An expansion structure (3) that can expand to securely connect the first profile (1) and the second profile (2) is provided between them, and an adjustment structure (4) that adjusts the degree of expansion of the expansion structure (3).

2. The expansion-type connection structure for doors and windows as described in claim 1, characterized in that: The expansion structure (3) includes two mutually cooperating expansion blocks (301), and the two expansion blocks are provided with mutually cooperating adjustment grooves. The two mutually cooperating adjustment grooves constitute an adjustment hole (5) through which the adjustment structure (4) passes.

3. The expansion-type connection structure for doors and windows as described in claim 1, characterized in that: The adjustment structure (4) is an adjustment bolt.

4. The expansion-type connection structure for doors and windows as described in claim 3, characterized in that: The first profile (1) is provided with at least one adjusting bolt connecting the expansion structure and the first profile, and the second profile (2) is provided with at least one adjusting bolt connecting the expansion structure and the second profile.

5. The expansion-type connection structure for doors and windows as described in claim 3, characterized in that: The diameter of the screw of the adjusting bolt is greater than the diameter of the adjusting hole (5) of the expansion structure.

6. The expansion-type connection structure for doors and windows as described in claim 3, characterized in that: The adjusting bolts are located at the upper or lower ends of the first and second profiles.

7. The expansion-type connection structure for doors and windows as described in claim 1, characterized in that: The direction of the expansion force generated by the expansion structure (3) is the same as the direction of the external force provided by the first and second profiles.

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