Double-pin type door and window connecting corner brace

Abstract

The utility model discloses a double pin type door and window connecting corner connector which comprises a first corner connector, a second corner connector is installed on one side of the first corner connector, the first corner connector and the second corner connector are consistent in installation structure, the first corner connector comprises a butt joint piece, a fixing piece is fixedly installed at the bottom of the butt joint piece, and meanwhile an installation groove is formed in the surface of the butt joint piece. A mounting frame is fixedly mounted on the surface of the end of the fixing piece, a stress cylinder is movably inserted into the top of the mounting frame in a penetrating mode, a spring is fixedly mounted in the stress cylinder, meanwhile, the end, away from the stress cylinder, of the spring is fixed to the surface of the fixing piece, and a friction block is fixedly mounted on the top of the stress cylinder. According to the double-pin type door and window connecting corner brace, the first corner brace body and the second corner brace body can be stably inserted into a door and window sectional material through the elastic force of the spring, looseness cannot occur, and the door and window frame is not prone to looseness, deformation or even breakage when bearing external force.

Description

Technical Field

[0001] The utility model relates to the field of hardware fittings, and particularly to a double-pin type window and door connecting corner fitting. Background Technique

[0002] The window and door corner fitting firmly connects each frame of the window and door to form a stable overall frame; whether it is an aluminum alloy, plastic steel or wooden window and door, the corner fitting can provide strong connecting force at the corner of the window and door to prevent loosening, deformation, etc. of the frame during use; when the window and door are subjected to external forces such as wind force and impact, the corner fitting can evenly disperse these forces to the entire frame, thereby enhancing the wind pressure resistance, earthquake resistance and other performances of the window and door;

[0003] When the corner fitting is installed, one end of the corner fitting is inserted into the interior of the window and door profile. Before the bolt is installed, the contact area between the corner fitting and the profile is small and the connection is not tight; when the bolt is installed, this loose connection may cause the corner fitting to not fully play its connecting role, making the window and door frame prone to loosening, deformation or even fracture when bearing external forces. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double-pin type window and door connecting corner fitting to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, a double-pin type window and door connecting corner fitting is provided, which includes a first corner fitting. A second corner fitting is installed on one side of the first corner fitting, and the installation structures on the first corner fitting and the second corner fitting are the same. The first corner fitting includes a docking piece, and a fixing piece is fixedly installed at the bottom of the docking piece. At the same time, an installation groove is opened on the surface of the docking piece, and an installation frame is fixedly installed on the end surface of the fixing piece. A force-bearing cylinder is movably inserted through the top of the installation frame, and a spring is fixedly installed inside the force-bearing cylinder. At the same time, the end of the spring away from the force-bearing cylinder is fixed on the surface of the fixing piece, and a friction block is fixedly installed on the top of the force-bearing cylinder. A fillet is arranged on the outer side of the surface of the friction block. Through holes are opened in the upper parts of the first corner fitting and the second corner fitting, and the first corner fitting and the second corner fitting are fixedly connected by an internal hexagonal bolt.

[0006] Preferably, the docking piece and the fixing piece are arranged in a "V" shape, and three groups of reinforcing pieces are installed between the docking piece and the fixing piece. At the same time, the reinforcing pieces are arc-shaped structures made of metal materials.

[0007] Preferably, one end of the reinforcing piece is fixedly connected to the side wall of the docking piece, and the other end of the reinforcing piece is fixedly connected to the side wall of the fixing piece. At the same time, the three groups of reinforcing pieces are arranged in parallel.

[0008] Preferably, the cross-section of the mounting frame is set in a "U" shape, and a force-bearing cylinder and a spring are respectively installed inside the mounting frame. The friction block is connected to the spring through the force-bearing cylinder.

[0009] Preferably, pin cylinders are fixedly installed on the outer sides of the first corner fitting and the second corner fitting, and the first corner fitting and the second corner fitting are respectively inserted into the interiors of two groups of door and window profiles and are screwed and fixed through pins and pin cylinders.

[0010] Preferably, four positioning grooves are evenly formed on the inner side of the upper part of the first corner fitting, and four positioning seats are evenly fixed on the inner side of the upper part of the second corner fitting. At the same time, the sizes of the positioning seats and the positioning grooves are adapted to each other, and the positioning seats are inserted into the positioning grooves. The cross-sections of the positioning seats and the positioning grooves are both set in a dovetail shape.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the first corner fitting and the second corner fitting are inserted into the interior of the door and window profiles, the friction blocks thereon are stressed and compress the spring through the force-bearing cylinder. Round corners are formed on the outer side of the surface of the friction block, making it easier for the friction block to be inserted into the interior of the door and window profiles. When the friction block is inserted into the interior of the door and window profiles, the spring is in a compressed state at this time. The elastic force of the spring can be utilized to stably insert the first corner fitting and the second corner fitting into the interior of the door and window profiles without loosening, so that the door and window frame is not prone to loosening, deformation or even fracture when bearing external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front view schematic diagram of the structure of the present utility model;

[0013] Figure 2 is Figure 1 the bottom view of

[0014] Figure 3 is Figure 1 the top view of

[0015] Figure 4 is Figure 1 the rear view of

[0016] Reference numerals in the drawings: 1, first corner fitting; 11, positioning groove; 12, docking piece; 121, fixing piece; 13, installation groove; 14, perforation; 15, pin cylinder; 16, reinforcing piece; 17, mounting frame; 18, friction block; 181, force-bearing cylinder; 182, spring; 2, second corner fitting; 21, positioning seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Please refer to Figures 1-4, the utility model provides a double-pin type door and window connecting corner piece, which includes a first corner piece 1. A second corner piece 2 is installed on one side of the first corner piece 1, and the installation structures on the first corner piece 1 and the second corner piece 2 are the same. The first corner piece 1 includes a butting piece 12, and a fixing piece 121 is fixedly installed at the bottom of the butting piece 12. At the same time, an installation groove 13 is opened on the surface of the butting piece 12, and an installation frame 17 is fixedly installed on the end surface of the fixing piece 121. A force-bearing cylinder 181 is movably inserted through the top of the installation frame 17, and a spring 182 is fixedly installed inside the force-bearing cylinder 181. At the same time, one end of the spring 182 away from the force-bearing cylinder 181 is fixed on the surface of the fixing piece 121, and a friction block 18 is fixedly installed on the top of the force-bearing cylinder 181. The outer side of the surface of the friction block 18 is provided with a rounded corner. Through holes 14 are opened at the upper parts of the first corner piece 1 and the second corner piece 2, and the first corner piece 1 and the second corner piece 2 are fixedly connected by an internal hexagon bolt.

[0018] Working principle: When installing, first hold the first corner piece 1 and the second corner piece 2 with both hands respectively, and insert the four positioning grooves 11 at the end of the first corner piece 1 on the outside of the four positioning seats 21 on the second corner piece 2 respectively. After the first corner piece 1 and the second corner piece 2 are fixedly installed, the first corner piece 1 and the second corner piece 2 are fixedly connected by an internal hexagon bolt. At this time, insert the first corner piece 1 into the inside of the door and window profile. At this time, use a pin to pass through the opening on the side wall of the door and window profile and be screwed and fixed inside the pin cylinder 15 on the first corner piece 1. At this time, insert another group of door and window profiles to the outside of the second corner piece 2 and fix them in the same way. Adopt the double-pin method to fixedly connect the two groups of door and window profiles through the corner piece to ensure the stability after the two groups of doors and windows are butt-jointed and installed; when the first corner piece 1 and the second corner piece 2 are inserted into the inside of the door and window profile, at this time, the friction block 18 on them is stressed and compresses the spring 182 through the force-bearing cylinder 181. The outer side of the surface of the friction block 18 is provided with a rounded corner, making it easier for the friction block 18 to be inserted into the inside of the door and window profile. When the friction block 18 is inserted into the inside of the door and window profile, at this time, the spring 182 is in a compressed state, and the elastic force of the spring 182 can be used to stably insert the first corner piece 1 and the second corner piece 2 into the inside of the door and window profile without loosening, so that the door and window frame is not easy to loosen, deform or even break when bearing external forces.

[0019] The butting piece 12 and the fixing piece 121 are arranged in a "V" shape, and three reinforcing pieces 16 are installed between the butting piece 12 and the fixing piece 121. At the same time, the reinforcing pieces 16 are arc-shaped structures made of metal materials.

[0020] As a preferred implementation manner, one end of the reinforcing piece 16 is fixedly connected to the side wall of the butting piece 12, and the other end of the reinforcing piece 16 is fixedly connected to the side wall of the fixing piece 121. At the same time, the three reinforcing pieces 16 are arranged in parallel.

[0021] The cross-section of the installation frame 17 is set in a "U" shape, and a force-bearing cylinder 181 and a spring 182 are respectively installed inside the installation frame 17. The friction block 18 is connected to the spring 182 through the force-bearing cylinder 181.

[0022] As a preferred embodiment, pin cylinders 15 are fixedly installed on the outer sides of both the first corner fitting 1 and the second corner fitting 2. The first corner fitting 1 and the second corner fitting 2 are respectively inserted into the interiors of two groups of door and window profiles and are screwed and fixed through pins and the pin cylinders 15.

[0023] Four groups of positioning grooves 11 are evenly formed on the inner side of the upper part of the first corner fitting 1, and four groups of positioning seats 21 are evenly fixed on the inner side of the upper part of the second corner fitting 2. At the same time, the sizes of the positioning seats 21 and the positioning grooves 11 are adapted to each other, and the positioning seats 21 are inserted into the interiors of the positioning grooves 11. The cross-sections of the positioning seats 21 and the positioning grooves 11 are both set in a dovetail shape.

Claims

1. A double-pin type door and window connecting corner fitting, comprising a first corner fitting (1), characterized in that: A second corner code (2) is installed on one side of the first corner code (1), and the installation structures on the first corner code (1) and the second corner code (2) are the same. The first corner code (1) includes a docking piece (12), and a fixing piece (121) is fixedly installed at the bottom of the docking piece (12). At the same time, an installation groove (13) is formed on the surface of the docking piece (12), and an installation frame (17) is fixedly installed on the end surface of the fixing piece (121). A force-bearing cylinder (181) is movably inserted through the top of the installation frame (17), and a spring (182) is fixedly installed inside the force-bearing cylinder (181). At the same time, one end of the spring (182) away from the force-bearing cylinder (181) is fixed on the surface of the fixing piece (121), and a friction block (18) is fixedly installed on the top of the force-bearing cylinder (181). The outer side of the surface of the friction block (18) is provided with a rounded corner. Through holes (14) are formed in the upper parts of both the first corner code (1) and the second corner code (2), and the first corner code (1) and the second corner code (2) are fixedly connected by an internal hexagonal bolt.

2. The double-pin type door and window connecting corner fitting according to claim 1, wherein: The docking piece (12) and the fixing piece (121) are arranged in a "V" shape, and three reinforcing pieces (16) are installed between the docking piece (12) and the fixing piece (121). At the same time, the reinforcing piece (16) is an arc-shaped structure made of metal material.

3. A double-pin type door and window connecting corner fitting according to claim 2, characterized in that: One end of the reinforcing piece (16) is fixedly connected to the side wall of the docking piece (12), and the other end of the reinforcing piece (16) is fixedly connected to the side wall of the fixing piece (121). At the same time, the three reinforcing pieces (16) are arranged in parallel.

4. A double-pin type door and window connecting corner fitting according to claim 1, characterized in that: The cross-section of the installation frame (17) is arranged in a "U" shape, and a force-bearing cylinder (181) and a spring (182) are respectively installed inside the installation frame (17). The friction block (18) is connected to the spring (182) through the force-bearing cylinder (181).

5. A double-pin type door and window connecting corner code according to claim 1, characterized in that: Pin cylinders (15) are fixedly installed on the outer sides of both the first corner code (1) and the second corner code (2). The first corner code (1) and the second corner code (2) are respectively inserted into the interiors of two groups of door and window profiles and are fixedly connected by screws and the pin cylinders (15).

6. The double-pin type door and window connecting corner fitting according to claim 1, characterized in that: Four positioning grooves (11) are evenly formed in the inner side of the upper part of the first corner code (1), and four positioning seats (21) are evenly fixed on the inner side of the upper part of the second corner code (2). At the same time, the sizes of the positioning seats (21) and the positioning grooves (11) are adapted to each other, and the positioning seats (21) are inserted into the interiors of the positioning grooves (11). The cross-sections of both the positioning seats (21) and the positioning grooves (11) are arranged in a dovetail shape.

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