Hinge structure of stainless steel window frame

Abstract

The application discloses a hinge structure of a stainless steel window frame, relates to the field of window frame locking, and comprises a locking block, a fastening bolt, a first hanging piece, a second hanging piece and a shaft core, one end of the shaft core is integrally formed with a first hinge cap, the other end of the shaft core is riveted with a second hinge cap through a thread, the first hanging piece and the second hanging piece are both hinged on the shaft core, the second hanging piece is located in the middle of the first hanging piece, the locking block is fixed on a door and window frame through the fastening bolt, the first hanging piece forms a containing cavity matched with the locking block, the first hanging piece is fixed on the door and window frame through the fastening bolt and the locking block, and the second hanging piece is fixed on a door and window opening and closing shutter through the fastening bolt. The application is convenient to install, can guarantee that the window frame locking structure is stable and reliable, and has the effect of reducing the extrusion force between hinge components.

Description

Technical Field

[0001] This application relates to the field of window frame locking, and in particular to a hinge structure for a stainless steel window frame. Background Technology

[0002] In the door and window industry, steel windows are a common type of building window and are widely used in the construction field. In traditional steel window structures, the hinged sashes are installed on the window frame, and the hinges are usually installed by welding. This method first requires a welding process to fix the hinges to the window frame; then a grinding process is needed to ensure the weld joints are smooth and aesthetically pleasing; finally, the installation process is carried out to assemble the frame and sashes.

[0003] However, this hinge installation method has several drawbacks. First, the welding process requires highly skilled and experienced personnel; if the hinge is not welded securely, it can lead to the fan falling off. Second, inadequate grinding of the welded areas can cause rust and fan detachment. Third, after-sales service for the frame and fan cannot remove the fan for repair; it requires destructive removal, making repairs cumbersome and difficult. Utility Model Content

[0004] To address the issues of high technical requirements for workers, inadequate grinding of welded parts leading to hinge rust, and complicated maintenance associated with traditional welded steel window installation, this application provides a hinge structure for a stainless steel window frame.

[0005] The hinge structure for a stainless steel window frame provided in this application adopts the following technical solution: A hinge structure for a stainless steel window frame includes a locking block, a fastening bolt, a first hanging piece, a second hanging piece, and a shaft. One end of the shaft is integrally formed with a first hinge cap, and the other end of the shaft is threaded with a second hinge cap. Both the first and second hanging pieces are hinged to the shaft, with the second hanging piece located in the middle of the first hanging piece. The locking block is fixed to the window frame by the fastening bolt. The first hanging piece forms a receiving cavity that mates with the locking block, and the first hanging piece is fixed to the window frame by the fastening bolt and the locking block. The second hanging piece is fixed to the opening and closing sash of the window by the fastening bolt.

[0006] By adopting the above technical solution, the locking block can expand the stress surface of the window frame to distribute the load and reduce the local stress of the door and window frame. The mounting cavity provides stable spatial constraint for the locking block, and its displacement is limited by the matching shape with the locking block to ensure accurate connection position. The second hanger is set in the middle of the first hanger, making the load-bearing structure of the locking structure more balanced and reducing the risk of deformation of the first and second hangers. By setting a first hinge cap integrally formed with one end of the shaft core and a second hinge cap threaded to the other end, the first and second hangers can be effectively prevented from coming off the shaft core, ensuring the stability of the locking structure.

[0007] Optionally, the locking block includes a mounting plate, a first fixing hole and a second fixing hole formed on the mounting plate. The two ends of the second fixing hole are semi-circular, and the middle part is rectangular. The second fixing hole provides adjustment space for the installation of the locking block.

[0008] By adopting the above technical solution, the mounting plate is first fixed to the door and window frame using fastening bolts passing through the second fixing hole, and then the first hanging piece is fixed to the door and window frame using fastening bolts passing through the first hanging piece and the first fixing hole. In addition, by setting the second fixing hole to be semi-circular at both ends and rectangular in the middle, adjustment space is provided for the installation of the locking block, thereby fine-tuning the installation position of the first hanging piece.

[0009] Optionally, the first hanging piece includes a first bushing hinged to the shaft core, a first plate integrally formed on the first bushing, a second plate integrally bent on the first plate, a third plate integrally bent on the second plate, and a fourth plate integrally bent on the third plate. The first plate is a C-shaped plate. The first plate and the second plate are perpendicular to each other, the second plate and the third plate are perpendicular to each other, and the third plate and the fourth plate are perpendicular to each other. The receiving cavity is formed by the second plate, the third plate, and the fourth plate. A first fixing hole is provided on the third plate. The tail of the fastening bolt passes through the first fixing hole and the first fixing position in sequence to fix the first hanging piece to the door and window frame. The second hanging piece is located in the middle of the first plate.

[0010] By adopting the above technical solution, the specific structural design of the first hanging piece involves a first bushing hinged to the shaft core, forming a receiving cavity through the integral molding and bending of the first, second, third, and fourth plates. The first hanging piece is fixed to the door / window frame by fastening bolts passing through the first fixing hole and the first fixing position. The second hanging piece is located in the middle of the first plate, making the load-bearing capacity of the locking structure more balanced and reducing the risk of deformation of the first and second hanging pieces.

[0011] Optionally, the second hanging piece includes a second bushing hinged to the shaft core, a fifth plate integrally formed on the second bushing, a sixth plate integrally bent on the fifth plate, and a seventh plate integrally bent on the sixth plate. The seventh plate has a second fixing hole. The fifth plate and the sixth plate are arranged perpendicularly to each other. The tail of the fastening bolt passes through the second fixing hole to fix the second hanging piece to the door and window sash.

[0012] By adopting the above technical solution, the specific structural design of the second hanging piece, which is hinged to the shaft core through the second bushing, combined with the integral molding and bending of the fifth, sixth and seventh plates, as well as the second fixing hole on the seventh plate, makes it easy to fix the second hanging piece to the door and window opening and closing sash with fastening bolts, thus ensuring the stability of the structure and the convenience of installation.

[0013] Optionally, a gasket is provided at both ends of the second bushing, and the gasket is located between the first bushing and the second bushing. The gasket is used to reduce the compressive force between the first bushing and the second bushing.

[0014] By adopting the above technical solution and setting gaskets at both ends of the second bushing, the squeezing pressure between the first bushing and the second bushing can be effectively reduced, the wear between the bushings can be reduced, the service life of the first and second hanging pieces can be extended, and the durability of the stainless steel window frame locking structure can be improved.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The first hinge cap, integrally formed on one end of the shaft core, and the second hinge cap, threaded and riveted to the other end of the shaft core, effectively prevent the first and second latches from coming off the shaft core, ensuring the stability of the locking structure. 2. The second hanging piece is placed in the middle of the first hanging piece, so that the load-bearing of the locking structure is more balanced, thereby reducing the risk of deformation of the first and second hanging pieces during use; 3. The specific structure of the first hanging piece forms a receiving cavity to accommodate the locking block, which can better match the locking block and enhance the connection stability between the first hanging piece and the door and window frame; 4. The second fixing hole of the locking block provides adjustment space for its installation, making the installation process more flexible and allowing for fine-tuning according to the actual situation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the installation of the locking structure provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the locking block provided in the embodiment of this application; Figure 3 This is a front structural diagram of the first and second hanging pieces provided in the embodiments of this application; Figure 4 This is a top view of the first and second hanging plates provided in the embodiments of this application.

[0018] Reference numerals: 1. Locking block; 101. Mounting plate; 102. First fixing hole; 103. Second fixing hole; 2. Fastening bolt; 3. First hanging piece; 31. First bushing; 32. First plate; 33. Second plate; 34. Third plate; 35. Fourth plate; 36. First fixing hole; 4. Second hanging piece; 41. Second bushing; 42. Fifth plate; 43. Sixth plate; 44. Seventh plate; 45. Second fixing hole; 5. Shaft core; 6. First hinge cap; 7. Second hinge cap; 8. Receiving cavity; 9. Gasket; 10. Door and window frame; 11. Door and window sash. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0020] This application discloses a hinge structure for a stainless steel window frame.

[0021] Reference Figure 1 A hinge structure for a stainless steel window frame, used to install the opening and closing sash 11 of a door or window onto a door or window frame 10, includes a locking block 1, a first hanging piece 3, a second hanging piece 4, and a shaft core 5, all made of 304 stainless steel. The first hanging piece 3 and the second hanging piece 4 are coaxially hinged to the shaft core 5, with the second hanging piece 4 located in the middle of the first hanging piece 3. Positioning the second hanging piece 4 in the middle of the first hanging piece 3, rather than vertically, makes the load-bearing structure more evenly distributed, thereby reducing the risk of deformation of the first and second hanging pieces 3 and 4.

[0022] Reference Figure 1 The locking block 1 is fixed to the door and window frame 10 by the fastening bolt 2. The first hanging piece 3 forms a receiving cavity 8 to accommodate the locking block 1 and is fixed to the door and window frame 10 by the fastening bolt 2 and the locking block 1. The second hanging piece 4 is fixed to the door and window opening and closing sash 11 by the fastening bolt 2, which avoids the defects caused by welded hinges and achieves the effect of convenient installation and easy maintenance.

[0023] Reference Figure 2The locking block 1 includes a mounting plate 101, a first fixing hole 102, and a second fixing hole 103. The mounting plate 101 is made of stainless steel to ensure its strength and corrosion resistance. The line connecting the first fixing hole 102 and the second fixing hole 103 is parallel to the length direction of the mounting plate 101, and both the first fixing hole 102 and the second fixing hole 103 are manufactured by an integral stamping process. In this embodiment, the first fixing hole 102 is a circular hole. The two ends of the second fixing hole 103 are semi-circular, and the middle part is rectangular. This special shape provides adjustment space for the installation of the locking block 1. The number of first fixing holes 102 is set to four, and the number of second fixing holes 103 is set to three. The first fixing holes 102 and the second fixing holes 103 are alternately arranged and evenly spaced.

[0024] Reference Figure 1 and Figure 2 After initially determining the installation position of the locking block 1 on the door and window frame 10, holes are drilled and tapped in the door and window frame 10 to create threaded grooves. Then, the locking block 1 is installed on the door and window frame 10 using the fastening bolts 2. During installation, if there is a slight deviation in position, the position of the locking block 1 can be finely adjusted through the rectangular center of the second fixing hole 103.

[0025] Reference Figure 3 and Figure 4 The first hanging piece 3 includes a first bushing 31 hinged to the shaft core 5, a first plate 32 integrally formed on the first bushing 31, a second plate 33 integrally bent on the first plate 32, a third plate 34 integrally bent on the second plate 33, and a fourth plate 35 integrally bent on the third plate 34. The first bushing 31 is typically cylindrical, with its inner diameter matching the outer diameter of the shaft core 5 to ensure flexible rotation around the shaft core 5. The first hanging piece 3 is made of stainless steel 304 and manufactured using an integral stamping process. Furthermore, the first plate 32 is a C-shaped plate, which provides space for the second hanging piece 4. The first plate 32 is perpendicular to the second plate 33, the second plate 33 is perpendicular to the third plate 34, and the third plate 34 is perpendicular to the fourth plate 35. This perpendicular arrangement gives the first hanging piece 3 good structural stability.

[0026] Reference Figure 1 , Figure 2 and Figure 4The receiving cavity 8 is formed by a second plate 33, a third plate 34, and a fourth plate 35, and is used to receive the locking block 1. A first fixing hole 36 is provided on the third plate 34, and the diameter of the first fixing hole 36 matches the diameter of the first fixing hole position 102. In this embodiment, the number of first fixing holes 36 is set to four, and the center line connecting these four first fixing holes 36 is parallel to the length direction of the third plate 34, and its position corresponds to the position of the four first fixing hole positions 102. The tail of the fastening bolt 2 is passed through the first fixing hole 36 and the first fixing hole position 102 in sequence and threaded onto the door and window frame 10, thereby fixing the first hanging piece 3 to the door and window frame 10.

[0027] On the one hand, the locking block 1 can prevent the first hanging piece 3 from directly contacting the door and window frame 10, reducing local squeezing deformation when the bolts are tightened. On the other hand, the locking block 1 can compensate for unevenness on the surface of the door and window frame 10 or dimensional deviations in the installation position of the first hanging piece 3, ensuring that the first hanging piece 3 fits tightly with the door and window frame 10 and avoiding shaking caused by gaps.

[0028] Reference Figure 1 , Figure 3 and Figure 4 The second mounting plate 4 includes a second bushing 41 hinged to the shaft core 5, a fifth plate 42 integrally formed on the second bushing 41, a sixth plate 43 integrally bent on the fifth plate 42, and a seventh plate 44 integrally bent on the sixth plate 43. The second bushing 41 is also cylindrical, with its inner diameter matching the outer diameter of the shaft core 5 to allow for flexible rotation. The fifth plate 42 and the sixth plate 43 are perpendicularly arranged, and the sixth plate 43 and the seventh plate 44 are perpendicularly arranged. This structure allows the second mounting plate 4 to better connect with the door / window hinge sash 11. The second mounting plate 4 is made of 304 stainless steel and is manufactured using a one-piece stamping process.

[0029] Reference Figures 1-4 A second fixing hole 45 is provided on the seventh plate 44. In this embodiment, the number of second fixing holes 45 is set to three, and the center line connecting these three second fixing holes 45 is parallel to the length direction of the seventh plate 44. After determining the installation position of the second hanging piece 4 on the door and window opening and closing sash 11, a hole is drilled and tapped to create a threaded groove. Then, the tail of the fastening bolt 2 passes through the second fixing hole 45 and is threaded onto the threaded groove on the door and window opening and closing sash 11, thereby fixing the second hanging piece 4 to the door and window opening and closing sash 11.

[0030] Reference Figure 3A first hinge cap 6 is integrally formed at one end of the shaft core 5, and a second hinge cap 7 is threadedly riveted to the other end of the shaft core 5. The function of the first hinge cap 6 and the second hinge cap 7 is to prevent the first hanging piece 3 and the second hanging piece 4 from falling off the shaft core 5. The first hinge cap 6 and the shaft core 5 are integrally formed by forging to ensure their connection strength. The second hinge cap 7 is fixed to the shaft core 5 by threaded riveting, which ensures the stability of the connection and facilitates disassembly. The shaft core 5 is made of stainless steel, and its surface should be smooth to reduce friction between it and the first bushing 31 and the second bushing 41.

[0031] Reference Figure 3 Gaskets 9 are provided at both ends of the second bushing 41. Gaskets 9 are typically made of rubber, but can also be made of plastic, such as polytetrafluoroethylene (PTFE). The function of gaskets 9 is to reduce the compressive force between the first bushing 31 and the second bushing 41, preventing mutual wear between the two bushings during rotation. Gaskets 9 are typically circular, with their outer diameter slightly larger than the outer diameter of the bushing to ensure effective cushioning.

[0032] The implementation principle of the hinge structure for a stainless steel window frame in this application embodiment is as follows: This stainless steel window frame locking structure achieves the installation of the door and window opening and closing sash 11 in a non-welding manner, avoiding various problems caused by welding. The reasonable design and connection method of the locking block 1, the first hanging piece 3, and the second hanging piece 4 make the installation process more convenient, requiring only the use of fastening bolts 2 for fixing. At the same time, during after-sales maintenance, the hinge can be easily disassembled without destructive removal. Moreover, the special design of the second fixing hole 103 provides adjustment space for installation, which can better adapt to different installation environments, improve the installation efficiency and maintenance convenience of steel windows, and has strong practicality. In addition, the first hinge cap 6 integrally formed on one end of the shaft core 5 and the second hinge cap 7 threaded and riveted to the other end of the shaft core 5 effectively prevent the first hanging piece 3 and the second hanging piece 4 from coming off the shaft core 5, ensuring the stability of the locking structure.

[0033] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hinge structure of a stainless steel window frame, characterized by: The device includes a locking block (1), a fastening bolt (2), a first hanging piece (3), a second hanging piece (4), and a shaft core (5). One end of the shaft core (5) is integrally formed with a first hinge cap (6), and the other end of the shaft core (5) is threaded with a second hinge cap (7). The first hanging piece (3) and the second hanging piece (4) are both hinged to the shaft core (5), and the second hanging piece (4) is located in the middle of the first hanging piece (3). The locking block (1) is fixed to the door and window frame (10) by the fastening bolt (2). The first hanging piece (3) forms a receiving cavity (8) that cooperates with the locking block (1), and the first hanging piece (3) is fixed to the door and window frame (10) by the fastening bolt (2) and the locking block (1). The second hanging piece (4) is fixed to the door and window opening and closing sash (11) by the fastening bolt (2).

2. The hinge structure of a stainless steel window frame according to claim 1, characterized in that: The locking block (1) includes a mounting plate (101), a first fixing hole (102) and a second fixing hole (103) opened on the mounting plate (101). The two ends of the second fixing hole (103) are semi-circular, and the middle part is rectangular. The second fixing hole (103) provides adjustment space for the installation of the locking block (1).

3. The hinge structure for a stainless steel window frame according to claim 1, wherein: The first hanging piece (3) includes a first bushing (31) hinged to the shaft core (5), a first plate (32) integrally formed on the first bushing (31), a second plate (33) integrally bent on the first plate (32), a third plate (34) integrally bent on the second plate (33), and a fourth plate (35) integrally bent on the third plate (34). The first plate (32) is a C-shaped plate, and the first plate (32) and the second plate (33) are arranged perpendicularly to each other. The second plate (33) and the third plate (35) are arranged perpendicularly to each other. 34) is vertically arranged. The third plate (34) and the fourth plate (35) are vertically arranged. The receiving cavity (8) is formed by the second plate (33), the third plate (34) and the fourth plate (35). The third plate (34) has a first fixing hole (36). The tail of the fastening bolt (2) passes through the first fixing hole (36) and the first fixing hole (102) in sequence to fix the first hanging piece (3) on the door and window frame (10). The second hanging piece (4) is located in the middle of the first plate (32).

4. The hinge structure for a stainless steel window frame according to claim 1, wherein: The second hanging piece (4) includes a second bushing (41) hinged to the shaft core (5), a fifth plate (42) integrally formed on the second bushing (41), a sixth plate (43) integrally bent on the fifth plate (42), and a seventh plate (44) integrally bent on the sixth plate (43). The seventh plate (44) has a second fixing hole (45). The fifth plate (42) and the sixth plate (43) are arranged perpendicularly. The sixth plate (43) and the seventh plate (44) are arranged perpendicularly. The tail of the fastening bolt (2) passes through the second fixing hole (45) to fix the second hanging piece (4) on the door and window opening and closing sash (11).

5. The hinge structure of a stainless steel window frame according to claim 4, characterized in that: Both ends of the second bushing (41) are provided with gaskets (9), and the gaskets (9) are located between the first bushing (31) and the second bushing (41). The gaskets (9) are used to reduce the compressive force between the first bushing (31) and the second bushing (41).

Images