A steel alloy folding hinge for furniture

Abstract

This utility model discloses a steel alloy folding hinge for furniture, including a U-shaped base and a top seat rotatably connected to the U-shaped base. The bottom of the top seat has an integral end block, and the end of the end block is rotatably installed in a notch at the top of the U-shaped base. A rotating shaft is provided through the end of the end block. Both sides of the U-shaped base have rod holes corresponding to the rotating shaft. The two ends of the rotating shaft are respectively located in the two rod holes. An inner pull groove is provided inside the top seat. Through the provided structures such as the inner pull groove, inner pull rod, inner spring, inner pull block, rectangular pin, rectangular hole, C-shaped groove and C-shaped plate, the assembly method of the rotating shaft is made simpler and faster, which makes it easier for operators to connect and assemble the top seat and the U-shaped base, improves the assembly efficiency of the folding hinge, and facilitates the disassembly of the folding hinge during subsequent maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of hinge technology, specifically relating to a steel alloy folding hinge for furniture. Background Technology

[0002] Hinges, also known as folding hinges, are widely used in applications such as doors, windows, and cabinets. They are mechanical devices used to connect two solid objects and allow relative rotation between them. Steel alloy folding hinges are made of alloy steel, are small in size, can support objects weighing about 2 tons, are corrosion-resistant, have high hardness, and are not easily deformed by the time and number of rotations. They also provide a buffer function when the door or window is closed, minimizing the noise caused by the collision when closing.

[0003] In existing steel alloy folding hinges, a rotating shaft is installed between the top seat and the U-shaped base to enable rotation between them. However, the installation method of the existing rotating shaft is cumbersome, making the assembly between the top seat and the U-shaped base inconvenient and reducing the overall assembly efficiency of the folding hinge. It is also inconvenient to disassemble the folding hinge later. Therefore, this utility model proposes a steel alloy folding hinge for furniture. Utility Model Content

[0004] The purpose of this utility model is to provide a steel alloy folding hinge for furniture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel alloy folding hinge for furniture, comprising a U-shaped base and a top seat rotatably connected to the U-shaped base. The bottom of the top seat has an integral end block, and the end of the end block is rotatably installed in a notch at the top of the U-shaped base. A rotating shaft is provided through the end of the end block. Both sides of the U-shaped base have corresponding rod holes for the rotating shaft, and the two ends of the rotating shaft are respectively located in the two rod holes. An internal groove is provided inside the top seat. The inner side of the inner pull groove is provided with an inner pull rod, an inner sleeve spring, and an inner pull block. The bottom end of the inner pull rod is fixed to the inner pull block. The inner sleeve spring is sleeved on the surface of the inner pull rod. A rectangular locking pin is fixed to the bottom of the inner pull block. A rectangular hole corresponding to the rectangular locking pin is opened through the center of the rotating shaft. The top end of the rectangular locking pin extends through to the inside of the rectangular hole. A C-shaped groove is provided on the top surface of the top seat, and a C-shaped plate is provided inside the C-shaped groove. The top end of the inner pull rod extends through to the inside of the C-shaped groove and is rotatably connected to the C-shaped plate.

[0006] Preferably, the front surfaces of the U-shaped base and the top seat are provided with bolt grooves, and the bottom end of the bolt groove is provided with a through hole. The surfaces of the U-shaped base and the top seat are provided with sealing structures corresponding to the bolt grooves.

[0007] Preferably, the sealing structure includes a circular groove, a circular sealing plate, a rotating side member, a side groove, and a circular plug. The circular groove is formed at the top of the bolt groove, the side groove is formed on one side of the circular groove, and the rotating side member is rotatably installed inside the side groove. The side groove, the circular sealing plate, and the circular plug are an integral structure. The size of the circular plug is adapted to the bolt groove, and the size of the circular groove is adapted to the size of the circular sealing plate.

[0008] Preferably, the surface of the round plug is provided with two integral annular retainers, and the inner wall of the bolt groove is provided with an annular groove that matches the annular retainers.

[0009] Preferably, the C-shaped plate has semi-circular grooves on both ends, and the U-shaped base, top seat, end block and rotating shaft are all made of steel alloy.

[0010] Preferably, the two ends of the rotating shaft are provided with first positioning grooves, and the two sides of the top seat are provided with second positioning grooves corresponding to the first positioning grooves.

[0011] Preferably, the top end of the inner pull groove has a pull hole corresponding to the inner pull rod, and the bottom end of the inner pull groove has a pop-out hole corresponding to the rectangular locking pin.

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

[0013] 1. The internal pull groove, internal pull rod, internal sleeve spring, internal pull block, rectangular pin, rectangular hole, C-shaped groove and C-shaped plate and other structures make the assembly method of the rotating shaft simpler and faster, which makes it easier for operators to connect and assemble the top seat and U-shaped base, improves the assembly efficiency of the folding hinge, and facilitates the disassembly of the folding hinge during subsequent maintenance.

[0014] 2. By setting up a sealing structure consisting of a circular groove, a circular sealing plate, a rotating side piece, a side groove, a circular plug, and an annular locking plug, the top of the bolt groove can be sealed after the folding hinge is fixed to the external door and window. This provides a certain degree of protection for the bolts installed inside the bolt groove and prevents the inside of the bolt groove from being blocked by foreign objects, thus ensuring the removal of the folding hinge during subsequent maintenance.

[0015] 3. This folding hinge can support objects of considerable weight, and is corrosion-resistant, has high hardness, and is not easily deformed due to the time and number of rotations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the connection between the U-shaped base and the top seat of this utility model;

[0019] Figure 4 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0020] Figure 5 This utility model Figure 2 A magnified view of a portion of region B in the middle;

[0021] In the diagram: 1. U-shaped base; 2. Top seat; 3. C-shaped groove; 4. C-shaped plate; 5. Bolt groove; 6. Circular groove; 7. Circular sealing plate; 8. End block; 9. Rotating shaft; 10. Inner pull groove; 11. Inner pull rod; 12. Inner sleeve spring; 13. Inner pull block; 14. Rectangular hole; 15. Rectangular locking pin; 16. Side groove; 17. Rotating side piece; 18. Round plug; 19. Annular locking plug. Detailed Implementation

[0022] 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.

[0023] Example

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a steel alloy folding hinge for furniture, including a U-shaped base 1 and a top seat 2 rotatably connected to the U-shaped base 1. The bottom of the top seat 2 is provided with an integral end block 8, and the end of the end block 8 is rotatably installed in a notch at the top of the U-shaped base 1. A rotating shaft 9 is provided through the end of the end block 8. Both sides of the U-shaped base 1 are provided with rod holes corresponding to the rotating shaft 9. The two ends of the rotating shaft 9 are respectively located in the two rod holes. The inside of the top seat 2 is provided with an inner pull groove 10, and the inner side of the inner pull groove 10 is provided with an inner pull rod 11, an inner sleeve spring 12, and an inner pull block 13. The bottom of the inner pull rod 11... The inner pull rod 11 is fixed to the inner pull block 13. The inner spring 12 is sleeved on the surface of the inner pull rod 11. A rectangular locking pin 15 is welded and fixed to the bottom of the inner pull block 13. A rectangular hole 14 corresponding to the rectangular locking pin 15 is opened through the center of the rotating shaft 9. The top of the rectangular locking pin 15 passes through to the inside of the rectangular hole 14. A C-shaped groove 3 is provided on the top surface of the top seat 2. A C-shaped plate 4 is provided on the inside of the C-shaped groove 3. The top of the inner pull rod 11 passes through to the inside of the C-shaped groove 3 and is rotatably connected to the C-shaped plate 4. This makes the assembly method of the rotating shaft 9 simpler and faster, thus making it easier for operators to connect and assemble the top seat 2 and the U-shaped base 1.

[0025] In this embodiment, preferably, the front surfaces of both the U-shaped base 1 and the top seat 2 are provided with bolt grooves 5, and the bottom end of the bolt groove 5 is provided with a through hole. The surfaces of both the U-shaped base 1 and the top seat 2 are provided with sealing structures corresponding to the bolt grooves 5. The sealing structures include a circular groove 6, a circular sealing plate 7, a rotating side member 17, a side groove 16, and a circular plug 18. The circular groove 6 is located at the top of the bolt groove 5, and the side groove 16 is located on one side of the circular groove 6. The rotating side member 17 is rotatably mounted inside the side groove 16. The groove 16, the circular sealing plate 7, and the circular plug 18 are an integral structure. The size of the circular plug 18 is adapted to the bolt groove 5, and the size of the circular groove 6 is adapted to the size of the circular sealing plate 7. The surface of the circular plug 18 is provided with two integral annular retainers 19. Both the circular plug 18 and the annular retainers 19 are made of rubber. The inner wall of the bolt groove 5 is provided with an annular retainer groove adapted to the annular retainer 19, so that after the folding hinge is fixed to the outside door and window, the top of the bolt groove 5 can be sealed by the sealing structure.

[0026] In this embodiment, preferably, semi-circular buckle grooves are provided on both ends of the C-shaped plate 4, and the U-shaped base 1, top seat 2, end block 8 and rotating shaft 9 are all made of steel alloy components, which makes this folding hinge able to bear objects of considerable weight, and it is corrosion resistant, has high hardness, and is not easily deformed due to the time and number of rotations.

[0027] In this embodiment, preferably, the two ends of the rotating shaft 9 are provided with first positioning grooves, and the two sides of the top seat 2 are provided with second positioning grooves corresponding to the first positioning grooves. This can play a good role in identification and positioning when the rotating shaft 9 is installed, making it easy for the operator to align the rectangular hole 14 with the rectangular locking pin 15.

[0028] In this embodiment, preferably, the top end of the inner pull groove 10 is provided with a pull hole corresponding to the inner pull rod 11, and the bottom end of the inner pull groove 10 is provided with a pop-out hole corresponding to the rectangular locking pin 15.

[0029] The working principle and usage process of this utility model are as follows: When it is necessary to install the rotating shaft 9 between the top seat 2 and the U-shaped base 1, first pull the C-shaped plate 4 out forcefully from the inside of the C-shaped groove 3, causing the inner pull rod 11 to pull the inner pull block 13 and the rectangular locking pin 15, and causing the rectangular locking pin 15 to be pulled into the inside of the inner pull groove 10, and causing the inner sleeve spring 12 to be compressed. Then, rotate the C-shaped plate 4 ninety degrees, so that both ends of the C-shaped plate 4 can rest on the top surface of the top seat 2, so that the rectangular locking pin 15 no longer springs back. Then, insert the end block 8 into the notch at the top of the U-shaped base 1. The rotating shaft 9 is inserted into the U-shaped base 1 and the end block 8, and the first positioning groove at the end of the rotating shaft 9 is aligned with the second positioning groove on the side of the top seat 2. Finally, the C-shaped plate 4 is rotated 90 degrees and released, so that the inner spring 12 pushes the inner pull block 13 back, and the top of the rectangular pin 15 is inserted into the inner side of the rectangular hole 14, and the C-shaped plate 4 is pulled into the inner side of the C-shaped groove 3. This completes the rotational connection between the U-shaped base 1 and the top seat 2, making it easier for operators to connect and assemble the top seat 2 and the U-shaped base 1.

[0030] After the folding hinge is subsequently fixed to the external doors and windows with bolts, the circular sealing plate 7 can be rotated 180 degrees so that it can be aligned with the circular groove 6. Then, the circular sealing plate 7 is pressed firmly into the inside of the circular groove 6, causing the circular plug 18 to be pressed into the inside of the bolt groove 5, and the annular locking plug 19 to be engaged in the annular locking groove. This secures the circular sealing plate 7 into the inside of the circular groove 6 and provides a good sealing effect on the top of the bolt groove 5, providing a certain degree of protection for the bolts installed inside the bolt groove 5. It also prevents the inside of the bolt groove 5 from being blocked by foreign objects, ensuring the removal of the folding hinge during subsequent maintenance.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel alloy folding hinge for furniture, comprising a U-shaped base (1) and a top seat (2) rotatably connected to the U-shaped base (1), wherein the bottom of the top seat (2) is provided with an integral end block (8), and the end of the end block (8) is rotatably installed in a notch at the top of the U-shaped base (1), characterized in that: A rotating shaft (9) is provided through the end of the end block (8). The U-shaped base (1) has rod holes on both sides corresponding to the rotating shaft (9). The two ends of the rotating shaft (9) are respectively located in the two rod holes. The top seat (2) has an inner pull groove (10) inside. An inner pull rod (11), an inner sleeve spring (12), and an inner pull block (13) are provided on the inner side of the inner pull groove (10). The bottom end of the inner pull rod (11) is fixed to the inner pull block (13). The inner sleeve spring (12) is sleeved on the inner pull rod. (11) Surface, the bottom of the inner pull block (13) is fixed with a rectangular pin (15), the center of the rotating shaft (9) is provided with a rectangular hole (14) corresponding to the rectangular pin (15), the top of the rectangular pin (15) extends to the inside of the rectangular hole (14), the top surface of the top seat (2) is provided with a C-shaped groove (3), and a C-shaped plate (4) is provided on the inside of the C-shaped groove (3), the top of the inner pull rod (11) extends to the inside of the C-shaped groove (3) and is rotatably connected to the C-shaped plate (4).

2. The steel alloy folding hinge for furniture according to claim 1, characterized in that: The front surfaces of the U-shaped base (1) and the top seat (2) are provided with bolt grooves (5), and the bottom end of the bolt grooves (5) is provided with through holes. The surfaces of the U-shaped base (1) and the top seat (2) are provided with sealing structures corresponding to the bolt grooves (5).

3. A steel alloy folding hinge for furniture according to claim 2, characterized in that: The sealing structure includes a circular groove (6), a circular sealing plate (7), a rotating side member (17), a side groove (16), and a circular plug (18). The circular groove (6) is opened at the top of the bolt groove (5), and the side groove (16) is opened on one side of the circular groove (6). The rotating side member (17) is rotatably installed on the inner side of the side groove (16). The side groove (16), the circular sealing plate (7), and the circular plug (18) are an integral structure. The size of the circular plug (18) is adapted to the bolt groove (5), and the size of the circular groove (6) is adapted to the size of the circular sealing plate (7).

4. A steel alloy folding hinge for furniture according to claim 3, characterized in that: The surface of the round plug (18) is provided with two integrated annular plugs (19), and the inner wall of the bolt groove (5) is provided with an annular groove that is adapted to the annular plugs (19).

5. A steel alloy folding hinge for furniture according to claim 1, characterized in that: The C-shaped plate (4) has semi-circular grooves on both ends. The U-shaped base (1), top seat (2), end block (8) and rotating shaft (9) are all made of steel alloy.

6. A steel alloy folding hinge for furniture according to claim 1, characterized in that: The rotating shaft (9) has a first positioning groove on both ends of its surface, and the top seat (2) has a second positioning groove on both sides of its surface that corresponds to the first positioning groove.

7. A steel alloy folding hinge for furniture according to claim 1, characterized in that: The top end of the inner pull groove (10) is provided with a pull hole corresponding to the inner pull rod (11), and the bottom end of the inner pull groove (10) is provided with a pop-out hole corresponding to the rectangular locking pin (15).

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