A composite material section connecting device for plastic steel doors and windows

Abstract

The utility model discloses a kind of composite material profile connecting devices for plastic steel doors and windows, including connecting piece, the upper of the connecting piece is equipped with first profile piece, the upper of the connecting piece is equipped with second profile piece, the upper surface of the connecting piece is fixedly connected with positioning plate, the inner wall of the second profile piece is fixedly connected with fixed plate, the upper surface of the fixed plate is equipped with positioning hole, the outer surface of the positioning plate is equipped with two threaded through-slots, the outer surface of the first profile piece is equipped with two first through holes, the outer surface of the second profile piece is equipped with two second through holes, the inside of two the second through hole is equipped with first screw, and the outer surface of first screw is compatible with the inner wall of threaded through-slot.The utility model is through first screw and threaded through-slot, and the double fastening design of second screw and threaded recess, without high-temperature welding, the firmness when enhancing connection, in addition detachable screw connection mode, the replacement of damaged profile is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of PVC doors and windows, and in particular to a composite material profile connection device for PVC doors and windows. Background Technology

[0002] PVC windows and doors are made from polyvinyl chloride resin as the main raw material, with the addition of a certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers and other additives. They are extruded into profiles and then processed by cutting, welding or screwing. To enhance the rigidity of the profiles, steel is usually embedded in the profile cavities to form a PVC composite structure, which combines the corrosion resistance and heat insulation of plastics with the high strength of steel. It is widely used in the construction industry.

[0003] Currently, welding is commonly used for connecting PVC windows and doors during assembly. While welding can ensure connection strength, high temperatures can easily cause deformation and surface damage to the profiles. In addition, it is difficult to disassemble and replace damaged profiles, resulting in poor flexibility during connection. To address these issues, we propose a composite material profile connection device for PVC windows and doors. Utility Model Content

[0004] The purpose of this utility model is to provide a composite material profile connection device for PVC doors and windows to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A composite material profile connecting device for PVC doors and windows includes a connector, a first profile component above the connector, a second profile component above the connector, a positioning plate fixedly connected to the upper surface of the connector, a fixing plate fixedly connected to the inner wall of the second profile component, a positioning hole on the upper surface of the fixing plate, two threaded grooves on the outer surface of the positioning plate, two first through holes on the outer surface of the first profile component, two second through holes on the outer surface of the second profile component, and a first screw inside each of the two second through holes, with the outer surface of the first screw matching the inner wall of the threaded groove.

[0007] In a further embodiment, the top of the positioning plate passes through the positioning hole and extends above the positioning hole, and the outer surface of the positioning plate contacts the inner wall of the positioning hole.

[0008] In a further embodiment, the outer surface of the first profile is provided with a T-shaped limiting hole, and the outer surface of the connector is provided with a positioning port.

[0009] In a further embodiment, the bottom surface of the first profile has two threaded grooves, and the bottom surface of the connector has two fixing recesses. Each of the two fixing recesses is provided with a second screw, and the outer surface of the second screw is adapted to the inner wall of the threaded groove.

[0010] In a further embodiment, two sets of buffer pads are fixedly connected to the outer surface of the second profile, and the sides of the two sets of buffer pads that are far apart from each other are in contact with the inner wall of the first profile.

[0011] In a further embodiment, the inner wall of the positioning port is in contact with the outer surface of the second profile, and a T-shaped protrusion is fixedly connected to one side of the second profile, the outer surface of the T-shaped protrusion being in contact with the inner wall of the T-shaped limiting hole.

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

[0013] This invention enables the connector and the second profile to be initially positioned by setting a positioning plate and positioning holes. In addition, the T-shaped protrusion embedded in the T-shaped limiting hole allows the second profile and the first profile to be connected and positioned, facilitating subsequent locking and fixing. The double fastening design of the first screw and the threaded groove, and the second screw and the threaded groove, eliminates the need for high-temperature welding, enhancing the firmness of the connection. Furthermore, the detachable screw connection method facilitates the replacement of damaged profiles and extends the service life of PVC doors and windows. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a composite material profile connection device for PVC windows and doors, viewed from the front.

[0015] Figure 2 A frontal sectional view of a composite material profile connection device for PVC windows and doors;

[0016] Figure 3 An exploded structural diagram of a composite material profile connection device for PVC windows and doors;

[0017] Figure 4 A top sectional view of the composite material profile connection device for PVC windows and doors.

[0018] In the diagram: 1. Connector; 2. First profile; 3. Positioning port; 4. Second profile; 5. Positioning plate; 6. Fixing plate; 7. Positioning hole; 8. Threaded through groove; 9. Second through hole; 10. First through hole; 11. First screw; 12. T-shaped protrusion; 13. T-shaped limiting hole; 14. Threaded groove; 15. Fixing recess; 16. Second screw; 17. Buffer pad. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] 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.

[0022] Please see Figures 1-4In this utility model, a composite material profile connecting device for PVC doors and windows includes a connector 1, a first profile 2 above the connector 1, a second profile 4 above the connector 1, a positioning plate 5 fixedly connected to the upper surface of the connector 1, a fixing plate 6 fixedly connected to the inner wall of the second profile 4, a positioning hole 7 on the upper surface of the fixing plate 6, two threaded grooves 8 on the outer surface of the positioning plate 5, two first through holes 10 on the outer surface of the first profile 2, and two second through holes 9 on the outer surface of the second profile 4. A first screw 11 is provided inside each of the two second through holes 9, and the outer surface of the first screw 11 is adapted to the inner wall of the threaded groove 8. Through the double fastening design of the first screw 11 and the threaded groove 8, and the second screw 16 and the threaded groove 14, high-temperature welding is not required, enhancing the firmness of the connection.

[0023] In a further embodiment, the top of the positioning plate 5 passes through the positioning hole 7 and extends above the positioning hole 7. The outer surface of the positioning plate 5 contacts the inner wall of the positioning hole 7. The outer surface of the first profile 2 is provided with a T-shaped limiting hole 13, and the outer surface of the connector 1 is provided with a positioning opening 3. The inner wall of the positioning opening 3 contacts the outer surface of the second profile 4. A T-shaped protrusion 12 is fixedly connected to one side of the second profile 4. The outer surface of the T-shaped protrusion 12 contacts the inner wall of the T-shaped limiting hole 13. Through the contact between the positioning plate 5 and the inner wall of the positioning hole 7, the relative position of the second profile 4 and the connector 1 can be restricted, which can provide a stable foundation for subsequent fastening operations. Through the setting of the T-shaped limiting hole 13, the positioning opening 3 and the T-shaped protrusion 12, the first profile 2, the second profile 4 and the connector 1 can be better connected and positioned, improving the assembly stability of the overall structure.

[0024] In a further embodiment, the bottom surface of the first profile 2 has two threaded grooves 14, and the bottom surface of the connector 1 has two fixing holes 15. The interior of each fixing hole 15 is provided with a second screw 16, and the outer surface of the second screw 16 is adapted to the inner wall of the threaded groove 14. The outer surface of the second profile 4 is fixedly connected with two sets of buffer pads 17. The side of each set of buffer pads 17 that is far apart from each other is in contact with the inner wall of the first profile 2. Through the arrangement of the two threaded grooves 14, the two fixing holes 15 and the second screws 16, the first profile 2 and the connector 1 can be fastened from the bottom, which enhances the firmness of the connection. The two sets of buffer pads 17 can provide buffer protection during connection and reduce profile wear.

[0025] The working principle of this utility model is as follows: First, take the second profile 4 and make the positioning plate 5 pass through the positioning hole 7 on the fixing plate 6 to form a preliminary positioning. Then, take the first profile 2 and make it slide on the surface of the second profile 4, while making the T-shaped protrusion 12 embedded in the T-shaped limiting hole 13. Next, take the first screw 11 and make a threaded connection through the second through hole 9 and the threaded through groove 8. Then, cooperate with the second screw 16 to pass through the fixing recess 15 and screw into the threaded groove 14 to achieve double fastening and enhance the connection flexibility and sealing.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite material profile connection device for PVC doors and windows, characterized in that: The device includes a connector (1), a first profile (2) is provided above the connector (1), a second profile (4) is provided above the connector (1), a positioning plate (5) is fixedly connected to the upper surface of the connector (1), a fixing plate (6) is fixedly connected to the inner wall of the second profile (4), a positioning hole (7) is provided on the upper surface of the fixing plate (6), two threaded through grooves (8) are provided on the outer surface of the positioning plate (5), two first through holes (10) are provided on the outer surface of the first profile (2), two second through holes (9) are provided on the outer surface of the second profile (4), and a first screw (11) is provided inside each of the two second through holes (9), and the outer surface of the first screw (11) is adapted to the inner wall of the threaded through groove (8).

2. The composite material profile connecting device for PVC doors and windows according to claim 1, characterized in that: The top of the positioning plate (5) passes through the positioning hole (7) and extends above the positioning hole (7), and the outer surface of the positioning plate (5) is in contact with the inner wall of the positioning hole (7).

3. The composite material profile connecting device for PVC doors and windows according to claim 1, characterized in that: The outer surface of the first profile (2) is provided with a T-shaped limiting hole (13), and the outer surface of the connector (1) is provided with a positioning port (3).

4. The composite material profile connecting device for PVC doors and windows according to claim 1, characterized in that: The bottom surface of the first profile (2) has two threaded grooves (14), and the bottom surface of the connector (1) has two fixing holes (15). The two fixing holes (15) are provided with second screws (16), and the outer surface of the second screws (16) is adapted to the inner wall of the threaded grooves (14).

5. The composite material profile connecting device for PVC doors and windows according to claim 1, characterized in that: Two sets of buffer pads (17) are fixedly connected to the outer surface of the second profile (4), and the two sets of buffer pads (17) are in contact with the inner wall of the first profile (2) on the side away from each other.

6. The composite material profile connecting device for PVC doors and windows according to claim 3, characterized in that: The inner wall of the positioning port (3) is in contact with the outer surface of the second profile (4). A T-shaped protrusion (12) is fixedly connected to one side of the second profile (4). The outer surface of the T-shaped protrusion (12) is in contact with the inner wall of the T-shaped limiting hole (13).

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