Heavy-duty aluminum alloy hinges with reinforced connection methods

Abstract

This invention provides a heavy-duty aluminum alloy hinge adapted for a reinforced connection method, comprising a hinge base one, a hinge base two, and two opposing aluminum alloy mounting bases. Hinge base one and hinge base two are rotatably mounted on the two aluminum alloy mounting bases, which are respectively fixedly connected to the door frame and the door leaf. A connecting groove is provided in the middle of hinge base one, and a connecting rod is fixedly connected in the connecting groove. The middle of hinge base two is rotatably mounted on the connecting rod. A sliding groove is provided on the aluminum alloy mounting base for hinge base one or hinge base two to slide, and an adjustable resistance pad is provided in the sliding groove. Adjusting screws are threaded to both ends of the resistance pad, and both adjusting screws are rotatably connected to the bottom wall of the sliding groove. The top of the resistance pad contacts the bottom of hinge base one or hinge base two. This invention provides an adjustable resistance pad in the sliding groove to adjust the frictional resistance between hinge base one or hinge base two and the sliding groove, which can share the rotational force of the hinge.

Description

Technical Field

[0001] This invention relates to the field of hinges, and more particularly to heavy-duty aluminum alloy hinges adapted to reinforced connection methods. Background Technology

[0002] With the development of the entrance door industry, the main material used to produce entrance doors has gradually shifted from steel to aluminum alloy. Aluminum alloy is favored by the market for its excellent corrosion resistance, easy processing, low deformation rate, low density, light weight, high hardness, and easy surface color processing. Traditionally, front door hinges were installed on one side of the door frame and the other side of the door leaf, directly fixed to the mounting holes in the hinge and the door frame / leaf with screws. Steel front doors, being made of steel, could have their hinge back plates (thick iron plates typically around 5mm thick) welded on to extend the depth of the hinge fixing screws, thus achieving structural reinforcement. Currently, aluminum alloy front doors generally increase the wall thickness at the hinge fixing point in the door frame and leaf during profile extrusion, thereby extending the connection depth between the hinge screws and the profile. The common practice is to manually or mechanically process the hinge fixing points in the 2.5-5mm thick aluminum alloy door frame and leaf, first milling holes and then tapping them to create the necessary screw holes. While this method can solve the hinge fixing problem to some extent and meet the requirements of load-bearing environments, it still has shortcomings:

[0003] Aluminum alloys have a low density, and if the angle and torque are not properly controlled during milling and tapping, stripping may occur. Even if the machining is qualified, repeated loosening and tightening of the hinge mounting screws during the final installation process can also cause stripping of the hinge mounting holes due to differences in torque and angle, thus failing to achieve the desired tightness.

[0004] Therefore, it is necessary to provide a new type of heavy-duty aluminum alloy hinge that adapts to and reinforces the connection method to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an aluminum alloy heavy-duty hinge adapted to a reinforced connection method.

[0006] The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method provided by the present invention includes a hinge base one, a hinge base two, and two opposing aluminum alloy mounting bases. The hinge base one and the hinge base two are rotatably mounted on the two aluminum alloy mounting bases respectively. The two aluminum alloy mounting bases are fixedly connected to the door frame and the door leaf respectively. A connecting groove is provided in the middle of the hinge base one, and a connecting rod is fixedly connected in the connecting groove. The middle part of the hinge base two is rotatably mounted on the connecting rod. The other end of the hinge base one is slidably mounted on one of the aluminum alloy mounting bases, and the other end of the hinge base two is slidably mounted on the other aluminum alloy mounting base.

[0007] The aluminum alloy mounting base has a sliding groove for sliding of hinge seat one or hinge seat two, and an adjustable resistance pad is provided in the sliding groove. Both ends of the resistance pad are threaded with adjusting screws, and both adjusting screws are rotatably connected to the bottom wall of the sliding groove. The top of the resistance pad is in contact with the bottom of hinge seat one or hinge seat two.

[0008] Furthermore, the outer surface of the connecting rod is provided with multiple grooves, and the top of the hinge seat is provided with an oil injection hole, the bottom cavity of which is connected to the groove on the surface of the connecting rod.

[0009] Furthermore, the aluminum alloy mounting base includes a connecting base and a fixing base, wherein the connecting base is rotatably connected to either the first hinge base or the second hinge base.

[0010] Furthermore, the top of the connecting seat is provided with an adjustment groove, the fixing seat is slidably installed in the adjustment groove, and the fixing seat and the adjustment groove are fixedly connected by screws.

[0011] Furthermore, the mounting base has multiple mounting holes, each containing a rivet nut, and the rivet nut is internally threaded with a fastening screw.

[0012] Furthermore, one end of both the first hinge seat and the second hinge seat are bent inward.

[0013] Furthermore, the surface of the connecting rod is connected to a plurality of sound-absorbing pads, and the plurality of sound-absorbing pads are respectively located at the connection between hinge seat one and hinge seat two.

[0014] Compared with related technologies, the heavy-duty aluminum alloy hinge with adapted and reinforced connection method provided by the present invention has the following beneficial effects:

[0015] 1. This invention provides a sliding groove on an aluminum alloy mounting base for sliding of either hinge seat one or hinge seat two. An adjustable resistance shim is provided within the sliding groove to adjust the frictional resistance between hinge seat one or hinge seat two and the sliding groove. The thickness of the resistance shim is adjusted by screws or nuts to change its contact pressure with the bottom of the hinge seat, thereby controlling the frictional resistance. The resistance shim increases local friction, preventing wear or deformation caused by concentrated force. By precisely adjusting the frictional resistance, the sliding trajectory of hinge seat one and hinge seat two is ensured to be stable, achieving accurate reciprocating position of the door opening and closing, and distributing the rotational force of the hinge.

[0016] 2. The present invention has multiple sound-absorbing pads connected to the surface of the connecting rod, and the multiple sound-absorbing pads are respectively located at the connection of hinge seat one and hinge seat two. The structure of the sound-absorbing pads themselves enables fault-tolerant sealing when the axes of hinge seat one and hinge seat two are misaligned.

[0017] 3. The present invention has multiple grooves on the outer surface of the connecting rod and an oil injection hole at the top of the hinge seat. The bottom cavity of the oil injection hole is connected to the groove on the surface of the connecting rod. The groove on the surface of the connecting rod reduces the contact area and extends the residence time of the lubricating oil, thus reducing the number of lubrication cycles. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the aluminum alloy mounting base provided by the present invention;

[0019] Figure 2 for Figure 1 The enlarged structural diagram at point A is shown below;

[0020] Figure 3 Schematic diagram of the overall structure of the heavy-duty aluminum alloy hinge adapted to the reinforced connection method provided by the present invention Figure 1 ;

[0021] Figure 4 Schematic diagram of the overall structure of the heavy-duty aluminum alloy hinge adapted to the reinforced connection method provided by the present invention Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the structure of the hinge seat provided by the present invention;

[0023] Figure 6 for Figure 5 The enlarged structural diagram at point B is shown below;

[0024] Figure 7 This is a schematic diagram of the structure of the hinge seat II provided by the present invention;

[0025] Figure 8 This is a schematic diagram of the connecting rod provided by the present invention;

[0026] Figure 9 This is a cross-sectional structural schematic diagram of the hinge seat provided by the present invention;

[0027] Figure 10 for Figure 9 The enlarged structural diagram at point C is shown.

[0028] The following are the labels in the diagram: 1. Hinge seat one; 2. Hinge seat two; 3. Aluminum alloy mounting base; 4. Resistance pad; 5. Connecting groove; 6. Connecting rod; 7. Connecting seat; 8. Fixed seat; 9. Sliding groove; 10. Adjusting groove; 11. Mounting hole; 12. Rivet nut; 13. Fastening screw; 14. Silent pad; 15. Adjusting screw; 16. Groove; 17. Oil filling hole. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Please refer to the following: Figures 1-10 ,in, Figure 1 A schematic diagram of the structure of the aluminum alloy mounting base provided by the present invention; Figure 2 for Figure 1 The enlarged structural diagram at point A is shown below; Figure 3 Schematic diagram of the overall structure of the heavy-duty aluminum alloy hinge adapted to the reinforced connection method provided by the present invention Figure 1 ; Figure 4 Schematic diagram of the overall structure of the heavy-duty aluminum alloy hinge adapted to the reinforced connection method provided by the present invention Figure 2 ; Figure 5 This is a schematic diagram of the structure of the hinge seat provided by the present invention; Figure 6 for Figure 5 The enlarged structural diagram at point B is shown below; Figure 7 This is a schematic diagram of the structure of the hinge seat II provided by the present invention; Figure 8 This is a schematic diagram of the connecting rod provided by the present invention; Figure 9 This is a cross-sectional structural schematic diagram of the hinge seat provided by the present invention; Figure 10 for Figure 9 The enlarged structural diagram at point C is shown.

[0031] In the specific implementation process, such as Figures 1-7 As shown, the heavy-duty aluminum alloy hinge adapted for reinforced connection includes a hinge base 1, a hinge base 2, and two opposing aluminum alloy mounting bases 3. The hinge base 1 and the hinge base 2 are rotatably mounted on the two aluminum alloy mounting bases 3, and the two aluminum alloy mounting bases 3 are fixedly connected to the door frame and the door leaf, respectively. A connecting groove 5 is provided in the middle of the hinge base 1, and a connecting rod 6 is fixedly connected in the connecting groove 5. The middle of the hinge base 2 is rotatably mounted on the connecting rod 6. The other end of the hinge base 1 is slidably mounted on one of the aluminum alloy mounting bases 3, and the other end of the hinge base 2 is slidably mounted on the other aluminum alloy mounting base 3. One end of both the hinge base 1 and the hinge base 2 is bent inward.

[0032] It should be noted that multiple sound-absorbing pads 14 are connected to the surface of the connecting rod 6, and the multiple sound-absorbing pads 14 are respectively located at the connection of the first hinge seat 1 and the second hinge seat 2. The structure of the sound-absorbing pads 14 themselves enables them to have fault-tolerant sealing when the axes of the first hinge seat 1 and the second hinge seat 2 are misaligned.

[0033] It should be noted that reinforcement grooves for fixing two aluminum alloy mounting bases 3 can be provided on the inner side of the door frame and door leaf. Through the fitting design of the reinforcement grooves in the door frame and door leaf with the aluminum alloy mounting bases 3, the processing of the appearance structure of the hinge increases the correspondence between the hinge reinforcement grooves and the aluminum alloy profile structure, thus playing the role of reinforcing the hinge.

[0034] In a specific implementation, a sliding groove 9 is provided on the aluminum alloy mounting base 3 for sliding of hinge seat 1 or hinge seat 2. An adjustable resistance pad 4 is provided in the sliding groove 9. Both ends of the resistance pad 4 are threaded with adjusting screws 15. Both adjusting screws 15 are rotatably connected to the bottom wall of the sliding groove 9. The top of the resistance pad 4 contacts the bottom of hinge seat 1 or hinge seat 2, which is used to adjust the frictional resistance between hinge seat 1 or hinge seat 2 and the sliding groove 9. The thickness of the resistance pad 4 is adjusted by screws or nuts to change its contact pressure with the bottom of the hinge seat, thereby controlling the frictional resistance. The resistance pad 4 increases the local friction force to avoid wear or deformation caused by concentrated force. By accurately adjusting the frictional resistance, the sliding trajectory of hinge seat 1 and hinge seat 2 is ensured to be stable, the reciprocating position of the door leaf opening and closing is accurate, and the rotational force of the hinge is shared.

[0035] In a specific implementation, the aluminum alloy mounting base 3 includes a connecting base 7 and a fixing base 8. The connecting base 7 has a sliding groove 9 for sliding of the hinge base 1 or the hinge base 2. The connecting base 7 is rotatably connected to the hinge base 1 or the hinge base 2.

[0036] It should be noted that the top of the connecting seat 7 is provided with an adjustment groove 10, and the fixed seat 8 is slidably installed in the adjustment groove 10. The fixed seat 8 and the adjustment groove 10 are fixedly connected by screws. The position of the fixed seat 8 is adjusted by screws to compensate for the slight deformation caused by long-term use. The fixed seat 8 is provided with multiple mounting holes 11, and each mounting hole 11 is provided with a rivet nut 12. The rivet nut 12 is threaded with a fastening screw 13. By processing the screw hole position of the hinge, the hole space is changed, and the reserved position of the stainless steel rivet nut 12 accessory is increased. This type of accessory can increase the mutual connection strength of the screw threads. The rivet nut 12 lengthens the connection depth of the hinge mounting screw, effectively reducing unnecessary aluminum profile wall thickness and achieving the purpose of energy saving and emission reduction. Example

[0037] In a specific implementation process, refer to Figure 8 , Figure 9 as well as Figure 10 As shown, the outer surface of the connecting rod 6 has multiple grooves 16, and the top of the hinge seat 1 has an oil injection hole 17. The bottom cavity of the oil injection hole 17 is connected to the grooves 16 on the surface of the connecting rod 6. The grooves 16 on the surface of the connecting rod 6 reduce the contact area on the one hand, and extend the residence time of the lubricating oil on the other hand, thus reducing the number of lubrication cycles.

[0038] The working principle provided by this invention is as follows: When the hinge is in use, when the door is opened or closed, hinge seat 1 slides in the sliding groove 9 of the aluminum alloy mounting seat 3 on the door frame side, and hinge seat 2 slides in the sliding groove 9 of the aluminum alloy mounting seat 3 on the door leaf side. The connecting rod 6 serves as a rotation fulcrum, so that hinge seat 1 and hinge seat 2 form a four-bar linkage mechanism, which adapts to the arc-shaped movement trajectory of the door leaf. The structure of the silent pad 14 itself provides fault-tolerant sealing when the axes of hinge seat 1 and hinge seat 2 are misaligned. The thickness of the resistance pad 4 is adjusted by screws or nuts to change its contact pressure with the bottom of the hinge seat, thereby controlling the frictional resistance. The resistance pad 4 avoids wear or deformation caused by concentrated force by increasing local friction.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] 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 heavy-duty aluminum alloy hinge adapted for reinforced connection, comprising a hinge base one (1), a hinge base two (2), and two opposing aluminum alloy mounting bases (3), wherein the hinge base one (1) and the hinge base two (2) are respectively rotatably mounted on the two aluminum alloy mounting bases (3), and the two aluminum alloy mounting bases (3) are respectively fixedly connected to the door frame and the door leaf, characterized in that, The hinge seat one (1) has a connecting groove (5) in the middle, and a connecting rod (6) is fixedly connected in the connecting groove (5). The middle part of the hinge seat two (2) is rotatably mounted on the connecting rod (6). The other end of the hinge seat one (1) is slidably mounted on one of the aluminum alloy mounting seats (3), and the other end of the hinge seat two (2) is slidably mounted on the other aluminum alloy mounting seat (3). The aluminum alloy mounting base (3) has a sliding groove (9) for sliding of hinge seat one (1) or hinge seat two (2), and the sliding groove (9) is provided with an adjustable resistance pad (4). Both ends of the resistance pad (4) are threaded with adjusting screws (15). Both adjusting screws (15) are rotatably connected to the bottom wall of the sliding groove (9), and the top of the resistance pad (4) contacts the bottom of the hinge seat one (1) or the hinge seat two (2).

2. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 1, characterized in that, The outer surface of the connecting rod (6) is provided with a plurality of grooves (16), and the top of the hinge seat (1) is provided with an oil injection hole (17), the bottom cavity of the oil injection hole (17) is connected to the groove (16) on the surface of the connecting rod (6).

3. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 2, characterized in that, The aluminum alloy mounting base (3) includes a connecting base (7) and a fixing base (8), wherein the connecting base (7) is rotatably connected to the hinge base one (1) or the hinge base two (2).

4. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 3, characterized in that, The top of the connecting seat (7) is provided with an adjustment groove (10), the fixing seat (8) is slidably installed in the adjustment groove (10), and the fixing seat (8) and the adjustment groove (10) are fixedly connected by screws.

5. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 4, characterized in that, The mounting base (8) has multiple mounting holes (11), each of which is equipped with a rivet nut (12), and the rivet nut (12) is threaded with a fastening screw (13).

6. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 5, characterized in that, Both the first hinge seat (1) and the second hinge seat (2) are bent inward at one end.

7. The heavy-duty aluminum alloy hinge with an adapted and reinforced connection method according to claim 6, characterized in that, The surface of the connecting rod (6) is connected to a plurality of sound-absorbing pads (14), and the plurality of sound-absorbing pads (14) are respectively located at the connection of hinge seat one (1) and hinge seat two (2).

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