Door and window profile connecting structure with extremely narrow cavity

Abstract

The utility model relates to a door and window sectional material connecting structure with an extremely narrow cavity, which comprises a first sectional material, a second sectional material and a connecting assembly, and is characterized in that the connecting assembly comprises an upper connecting plate, a lower connecting plate, a positioning jackscrew and a limiting pin. The lower connecting plate is connected with the first profile through the positioning jackscrew, horizontal positioning of the connecting position is achieved, the upper connecting plate is longitudinally positioned through the lower connecting plate, meanwhile, the longitudinal position of the second profile is limited through the upper connecting plate, and an extremely-narrow cavity of the second profile contains the upper connecting plate, the lower connecting plate and the connecting position of the upper connecting plate and the lower connecting plate. On one hand, horizontal movement of the upper connecting plate and the lower connecting plate is avoided, on the other hand, hidden connection is achieved, under the condition that stable connection is guaranteed, the ultra-narrow cavity is matched with the thickness of the upper connecting plate and the thickness of the lower connecting plate, and therefore the sectional area of the sectional material is reduced, the problem that an existing door and window sectional material connecting cavity is small and limited is solved, manufacturing materials are saved, and the manufacturing cost is reduced. Therefore, the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window manufacturing, in particular to a door and window profile connection structure with an extremely narrow cavity. Background Art

[0002] At present, when two mutually perpendicular door and window frame profiles are connected, a hidden connection is usually adopted for the sake of aesthetics. That is, a cavity for accommodating the connector is provided in the profile. However, there is the following problem: due to the size limitation of the connector, the internal cavity of the profile is made wider to accommodate the connector, resulting in a larger cross-sectional area of the profile and high production cost. Utility Model Content

[0003] The purpose of the utility model is to provide a door and window profile connection structure with a reasonable structure and reliable use and an extremely narrow cavity, so as to solve the problem that the existing door and window profile connection cavity is narrowed and limited. While ensuring a stable connection, the profile cross-section is greatly reduced, the manufacturing material is saved, and the production cost is greatly reduced.

[0004] The technical solution of the utility model is:

[0005] A door and window profile connection structure with an extremely narrow cavity comprises a first profile, a second profile and a connection assembly which are perpendicular to each other. The technical points are as follows: the connection assembly comprises an upper connection plate, a lower connection plate, a positioning screw and a limit pin. The upper surface of the first profile is provided with a dovetail slot extending along its length. The lower connection plate comprises a dovetail clamping portion which cooperates with the dovetail slot, a left clamping claw and a right clamping claw located on the upper surface of the dovetail clamping portion. The opposite surfaces of the left and right clamping claws are symmetrically provided with longitudinal limit grooves. A screw hole corresponding to the positioning screw is provided in the middle of the upper surface of the dovetail clamping portion. The lower end of the positioning screw passes through the screw hole and presses against the upper surface of the first profile. The upper connecting plate includes a longitudinal limiting portion located between the left and right clamping claws, and a positioning portion connected to the top of the longitudinal limiting portion. The left and right side walls of the longitudinal limiting portion are provided with limiting teeth that cooperate with the longitudinal limiting groove. The positioning portion is provided with a horizontal long limiting hole. An extremely narrow cavity for inserting the upper connecting plate and the lower connecting plate is provided in the second profile. A circular hole corresponding to the horizontal long limiting hole is provided on the side wall of the extremely narrow cavity. The limiting pin passes through the circular hole and the horizontal long limiting hole in sequence to connect the upper connecting plate to the second profile.

[0006] In the above-mentioned door and window profile connection structure with an extremely narrow cavity, the upper connecting plate and the lower connecting plate have equal thickness, the inner width of the extremely narrow cavity is equal to the thickness of the upper connecting plate, and the inner length of the extremely narrow cavity is equal to the width of the upper connecting plate.

[0007] The above-mentioned door and window profile connection structure with an extremely narrow cavity has a hexagonal hole on the top surface of the positioning screw to facilitate the screwing operation, and the top surface of the positioning screw is lower than the upper surface of the dovetail clamping part or is flush with the upper surface of the dovetail clamping part.

[0008] In the above-mentioned door and window profile connection structure with an extremely narrow cavity, the number of longitudinal limiting grooves of the left clamping claw and the right clamping claw is equal, and there are multiple longitudinal limiting grooves respectively.

[0009] In the above-mentioned door and window profile connection structure with an extremely narrow cavity, the first profile and the second profile have the same structure to facilitate installation.

[0010] The beneficial effects of the utility model are:

[0011] The lower connecting plate is connected to the first profile by means of positioning top screws and realizes horizontal positioning of the connection position. The lower connecting plate longitudinally positions the upper connecting plate, and also uses the upper connecting plate to limit the longitudinal position of the second profile. The extremely narrow cavity of the second profile accommodates the upper connecting plate, the lower connecting plate and the connection between the two. On the one hand, it avoids horizontal movement of the upper and lower connecting plates, and on the other hand, it also realizes a hidden connection. While ensuring a stable connection, the extremely narrow cavity can be adapted to the thickness of the upper and lower connecting plates, thereby reducing the cross-sectional area of the profile, solving the problem of the existing door and window profile connection cavity becoming smaller and limited, saving manufacturing materials, and thus greatly reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the exploded structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the assembly effect of the utility model;

[0014] Figure 3 yes Figure 1 Schematic diagram of the exploded view of the upper connecting plate, lower connecting plate, and positioning screws.

[0015] In the figure: 1. First profile, 101. Dovetail slot, 2. Lower connecting plate, 201. Dovetail clamping portion, 202. Left clamping claw, 203. Right clamping claw, 204. Screw hole, 205. Longitudinal limit groove, 3. Positioning screw, 301. Hexagonal socket hole, 4. Upper connecting plate, 401. Longitudinal limit portion, 402. Limiting tooth, 403. Positioning portion, 404. Horizontal long limit hole, 5. Second profile, 501. Extremely narrow cavity, 502. Round hole, 6. Limit pin. DETAILED DESCRIPTION

[0016] The utility model is described in detail according to the accompanying drawings.

[0017] like Figure 1-Figure 3As shown, the door and window profile connection structure with an extremely narrow cavity includes a first profile 1, a second profile 5 and a connection assembly that are perpendicular to each other.

[0018] The connecting assembly includes an upper connecting plate 4, a lower connecting plate 2, a positioning screw 1 and a limiting pin. The upper surface of the first profile is provided with a dovetail slot 101 extending along its length. The lower connecting plate 2 includes a dovetail clamping portion 201 that cooperates with the dovetail slot 101, a left clamping claw 202 and a right clamping claw 203 located on the upper surface of the dovetail clamping portion 201. The opposite surfaces of the left and right clamping claws are symmetrically provided with longitudinal limiting grooves 205. The middle part of the upper surface of the dovetail clamping portion 201 is provided with a screw hole 204 corresponding to the positioning screw 3. The lower end of the positioning screw 3 passes through the screw hole 204 and presses against the upper surface of the first profile 1. The upper connecting plate 4 includes a longitudinal limiting portion 401 located between the left and right clamping claws 202 and 203, and a positioning portion 403 connected to the top of the longitudinal limiting portion 401. The left and right side walls of the longitudinal limiting portion 401 are provided with limiting teeth 402 that mate with the longitudinal limiting grooves 205. The positioning portion 403 is provided with a horizontally long limiting hole 404. The second profile 5 is provided with an extremely narrow cavity 501 for inserting the upper connecting plate 4 and the lower connecting plate 2. The side walls of the extremely narrow cavity 501 are provided with circular holes 502 corresponding to the horizontally long limiting holes 404. The limiting pin 6 passes through the circular hole 502 and the horizontally long limiting hole 404 in sequence, connecting the upper connecting plate 4 to the second profile 5.

[0019] In this embodiment, the thickness of the upper connecting plate 4 and the lower connecting plate 2 are equal, the inner width of the extremely narrow cavity 501 is equal to the thickness of the upper connecting plate 4, and the inner length of the extremely narrow cavity 501 is equal to the width of the upper connecting plate 4. The first profile 1 and the second profile 5 have the same structure to facilitate installation. The top surface of the positioning screw 3 is provided with an inner hexagonal hole 301 to facilitate the screwing operation. The top surface of the positioning screw 3 is lower than the upper surface of the dovetail clamping part 201 or is flush with the upper surface of the dovetail clamping part 201. The number of longitudinal limit grooves 205 of the left clamping claw 202 and the right clamping claw 203 is equal, and there are multiple of each.

[0020] The first profile 1 and the second profile 5 are aluminum alloy insulation profiles. The upper connecting plate 5 and the lower connecting plate 2 are aluminum alloy plates. The positioning screw 3 is a stainless steel screw, and the limit pin 6 is an aluminum alloy pin.

[0021] Working principle:

[0022] 1. During assembly, the dovetail clamping portion 201 of the lower connecting plate 2 slides from one end of the first profile 1 into the dovetail clamping groove 101, and is positioned horizontally using the positioning screw 3 after reaching the predetermined position.

[0023] 2. The longitudinal limiting portion 401 of the upper connecting plate 4 is connected to the upper end of the lower connecting plate 2 using the limiting teeth 402 and the longitudinal limiting groove 205 to keep the upper and lower connecting plates aligned.

[0024] 3. Slide the extremely narrow cavity 501 of the second profile 5 from top to bottom over the outer sides of the upper and lower connecting plates to achieve horizontal positioning between the three. Then, insert the positioning pin 6 through the circular hole 502 of the second profile 5 and the horizontal long positioning hole 404 of the upper connecting plate 4 to connect the upper connecting plate 4 to the second profile 5 and achieve longitudinal positioning to prevent the extremely narrow cavity 501 from longitudinally shifting relative to the upper and lower connecting plates. The horizontal long positioning hole 404 is provided for ease of installation.

[0025] The above detailed description of the embodiments of the present invention is intended to be a preferred embodiment of the present invention and should not be construed as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of this patent.

Claims

1. A door and window profile connection structure with an extremely narrow cavity, comprising a first profile, a second profile, and a connecting assembly that are perpendicular to each other, characterized in that: The connecting assembly includes an upper connecting plate, a lower connecting plate, a positioning top screw and a limiting pin. The upper surface of the first profile is provided with a dovetail slot extending along its length direction. The lower connecting plate includes a dovetail clamping portion that cooperates with the dovetail slot, a left clamping claw and a right clamping claw located on the upper surface of the dovetail clamping portion. The opposite surfaces of the left and right clamping claws are symmetrically provided with longitudinal limiting grooves. A screw hole corresponding to the positioning top screw is provided in the middle of the upper surface of the dovetail clamping portion. The lower end of the positioning top screw passes through the screw hole and presses against the upper surface of the first profile. The upper connecting plate includes a longitudinal limiting portion located between the left and right clamping claws, and a positioning portion connected to the top of the longitudinal limiting portion. The left and right side walls of the longitudinal limiting portion are provided with limiting teeth that cooperate with the longitudinal limiting groove. The positioning portion is provided with a horizontal long limiting hole. The second profile is provided with an extremely narrow cavity for inserting the upper connecting plate and the lower connecting plate. The side wall of the extremely narrow cavity is provided with a circular hole corresponding to the horizontal long limiting hole. The limiting pin passes through the circular hole and the horizontal long limiting hole in sequence to connect the upper connecting plate to the second profile.

2. The door and window profile connection structure with an extremely narrow cavity according to claim 1, characterized in that: The upper connecting plate and the lower connecting plate have the same thickness, the inner width of the extremely narrow cavity is equal to the thickness of the upper connecting plate, and the inner length of the extremely narrow cavity is equal to the width of the upper connecting plate.

3. The door and window profile connection structure with an extremely narrow cavity according to claim 1, characterized in that: The top surface of the positioning screw is provided with a hexagonal hole, and the top surface of the positioning screw is lower than the upper surface of the dovetail clamping portion or is flush with the upper surface of the dovetail clamping portion.

4. The door and window profile connection structure with an extremely narrow cavity according to claim 1, characterized in that: The left clamping claw and the right clamping claw have the same number of longitudinal limiting grooves, and are plural in number respectively.

5. The door and window profile connection structure with an extremely narrow cavity according to claim 1, characterized in that: The first profile and the second profile have the same structure.

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