Metal door and window hinge rust-proof sleeve

Abstract

The utility model discloses a metal door and window hinge rust-proof sleeve, which relates to the technical field of hardware fittings, and comprises a metal hinge, the middle position of the metal hinge is movably connected with a plurality of groups of rotating shafts, and the metal door and window hinge rust-proof sleeve is provided with a disc top, a spring and a modified polyurethane sponge. The three-dimensional porous structure of the modified polyurethane sponge can adsorb lubricating oil through capillary action, pores and a framework material of the modified polyurethane sponge have obvious diffusion hindering effect on the high-viscosity lubricating oil, so that oil molecules are difficult to separate spontaneously, and the combination state of the sponge and the oil molecules needs to be destroyed through extrusion and other external force modes, so that the disc top can be pressed downwards at regular intervals; in the downward pressing process of the disc top, the spring is compressed downwards at the same time, the disc top extrudes the modified polyurethane sponge, lubricating oil stored in the modified polyurethane sponge is released from the square hole, the lubricating oil flowing out of the square hole slides downwards to the rotating shaft under the action of gravity, the metal friction and corrosion risks are reduced, and the service life of the rotating shaft is prolonged. The problem that an existing device is poor in anti-rust effect is solved.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, specifically to a rust-proof sleeve for metal door and window hinges. Background Technology

[0002] Hardware fittings technology refers to machine parts or components made of hardware, as well as some small hardware products. They can be used independently or as auxiliary tools. For example, hinges used on metal doors and windows are auxiliary tools, typically used in cabinet doors, windows, and other similar applications, serving the functions of connection and rotation. Due to material issues, improper installation, or inadequate daily cleaning, hinges may rust, affecting their appearance and lifespan. Currently, most hinges are prevented from rusting by spraying anti-rust materials, but the rust prevention effect is poor and the cost is high.

[0003] Now, a new type of rust-proof sleeve for metal door and window hinges is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a rust-proof sleeve for metal door and window hinges to solve the problem of poor rust prevention effect mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rust-proof sleeve for metal door and window hinges, comprising a metal leaf, wherein multiple sets of rotating shafts are movably connected to the middle position of the metal leaf, and a rust-proof component is fixedly connected to the top of the rotating shaft.

[0006] The rust-proof component includes a top box, which is fixedly connected to the top of the rotating shaft. The top box has multiple sets of square holes on its outer periphery. A disc top is provided at the top of the top of the top box. Two sets of springs are fixedly connected to the left and right sides of the bottom of the disc top. A modified polyurethane sponge is provided in the middle of the bottom of the disc top. The top of the disc top has multiple sets of arc-shaped holes. The front end of the metal sheet has multiple sets of fine grooves. Wide grooves are fixedly connected between each pair of fine grooves.

[0007] As a further technical solution of this utility model, the top box is fixedly connected to the spring, the spring is fixedly connected to the disc top, and the disc top and the spring are elastic.

[0008] As a further technical solution of this utility model, the square holes are connected to the interior of the top box, the square holes are arranged at equal intervals, and the arc-shaped holes are connected to the interior of the top box.

[0009] As a further technical solution of this utility model, the external shape and size of the disc top are consistent with the internal shape and size of the top box, and the disc top can move up and down along the inside of the top box.

[0010] As a further technical solution of this utility model, a strong adhesive is fixedly connected to the left side of the front end of the metal page, a flexible PP film is fixedly connected to the right side of the front end of the metal page, and an acrylic transparent adhesive is fixedly connected to the front end of the flexible PP film. The strong adhesive and the acrylic transparent adhesive can be bonded to each other, and the flexible PP film is elastic.

[0011] As a further technical solution of this utility model, a nylon strip is fixedly connected to the top and bottom of the rotating shaft, and a sealing strip is fixedly connected to the side of the nylon strip away from the rotating shaft. The rotating shaft is fixedly connected to the sealing strip, and the sealing strip has low thermal conductivity.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the rust-proof sleeve for metal door and window hinges not only achieves rust prevention and anti-pinch functions, but also heat insulation functions;

[0013] (1) By setting up a disc top, a spring, and modified polyurethane sponge, lubricating oil can be poured into the top box through the arc-shaped hole during use. Because the three-dimensional porous structure of the modified polyurethane sponge can adsorb lubricating oil through capillary action, its pores and skeleton material significantly hinder the diffusion of high-viscosity lubricating oil, making it difficult for oil molecules to detach spontaneously. It is necessary to break the bond between the sponge and oil molecules through external force such as squeezing. Therefore, the disc top can be pressed down periodically. During the process of the disc top pressing down, the spring is compressed downwards at the same time. The modified polyurethane sponge is squeezed by the disc top, and the modified polyurethane is released. The lubricating oil stored inside the polyurethane sponge is released from the square hole. The lubricating oil flowing out of the square hole slides down to the shaft due to gravity, reducing metal friction and the risk of rust. Lubricating oil can also be added to the top box periodically through the arc-shaped hole for the modified polyurethane sponge to absorb. At the same time, the metal sheet is equipped with fine and wide grooves. Condensation from the external environment can flow into the wide groove through the fine groove and then back into the fine groove. During this process, the Venturi effect increases the flow speed of water, guiding rainwater or condensation to be discharged quickly, avoiding water accumulation and rust, thus achieving the anti-rust function.

[0014] (2) By setting up a flexible PP film and acrylic transparent adhesive, when using it, after the hinge is installed, the acrylic transparent adhesive and the strong adhesive are bonded and fixed together. After the strong adhesive and the acrylic transparent adhesive are fixed, the flexible PP film covers the surface of the metal sheet. Because the flexible PP film is elastic, it does not affect the opening and closing of the metal sheet. At the same time, because the flexible PP film is arched, it can prevent users from putting their hands between the metal sheets, which could lead to accidental pinching of the hand, thus achieving the anti-pinch function.

[0015] (3) By setting nylon strips and sealing strips, when in use, the sealing strips can block the heat conduction path between the metal of the rotating shaft, significantly reduce the heat transfer efficiency, and effectively improve the heat insulation performance. The nylon strips can also prevent condensation or air penetration while providing heat insulation, thus achieving the heat insulation function. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is an enlarged structural schematic diagram of the top box of this utility model from a front view cross section.

[0018] Figure 3 This is a top-view enlarged structural diagram of the disk top of this utility model;

[0019] Figure 4 This is a magnified front view of the flexible PP film covering state of this utility model.

[0020] In the diagram: 1. Metal plate; 2. Shaft; 3. Top box; 4. Square hole; 5. Disc top; 6. Spring; 7. Modified polyurethane foam; 8. Arc-shaped hole; 9. Narrow groove; 10. Wide groove; 11. Strong adhesive; 12. Flexible PP film; 13. Acrylic transparent adhesive; 14. Nylon strip; 15. Sealing strip. Detailed Implementation

[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 1-4 According to one embodiment of the present invention, a rust-proof sleeve for metal door and window hinges includes a metal leaf 1, a plurality of rotating shafts 2 are movably connected to the middle position of the metal leaf 1, and a rust-proof component is fixedly connected to the top of the rotating shaft 2.

[0023] Please see Figures 1-4 A rust-proof sleeve for metal door and window hinges also includes a rust-proof component, which includes a top box 3. The top box 3 is fixedly connected to the top of the rotating shaft 2. Multiple sets of square holes 4 are opened on the outer periphery of the top box 3. A disc top 5 is provided at the top of the inside of the top box 3. Two sets of springs 6 are fixedly connected to the left and right sides of the bottom of the disc top 5. A modified polyurethane sponge 7 is provided in the middle of the bottom of the disc top 5. Multiple sets of arc-shaped holes 8 are opened at the top of the disc top 5. Multiple sets of fine grooves 9 are opened at the front end of the metal leaf 1. Wide grooves 10 are fixedly connected between each pair of fine grooves 9. The top box 3 is fixedly connected to the springs 6. The springs 6 are fixedly connected to the disc top 5. The disc top 5 and the springs 6 are elastic. The square holes 4 are connected to the inside of the top box 3. The square holes 4 are arranged at equal intervals. The arc-shaped holes 8 are connected to the inside of the top box 3. The external shape and size of the disc top 5 are consistent with the internal shape and size of the top box 3. The disc top 5 can move up and down along the inside of the top box 3 to prevent rusting.

[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, lubricating oil can be poured into the top box 3 through the arc-shaped hole 8. Because the three-dimensional porous structure of the modified polyurethane sponge 7 can adsorb lubricating oil through capillary action, its pores and skeleton material significantly hinder the diffusion of high-viscosity lubricating oil, making it difficult for oil molecules to detach spontaneously. It is necessary to break the bond between the sponge and oil molecules through external force such as squeezing. Therefore, the disc top 5 can be pressed down periodically. During the downward pressing of the disc top 5, the spring 6 is compressed downward at the same time. The disc top 5 squeezes the modified polyurethane sponge 7, releasing the lubricating oil stored in the modified polyurethane sponge 7. The lubricating oil released from the square hole 4 slides down to the rotating shaft 2 due to gravity, reducing metal friction and the risk of rust. Lubricating oil can also be periodically added to the top box 3 through the arc-shaped hole 8 for absorption by the modified polyurethane sponge 7. Meanwhile, the metal page 1 is provided with a fine groove 9 and a wide groove 10 on its exterior. Condensation from the external environment can flow into the wide groove 10 through the fine groove 9 and then back into the fine groove 9. During this process, the Venturi effect increases the water flow speed, guiding rainwater or condensation to drain quickly, avoiding water accumulation that could lead to rust, and providing a good rust prevention effect.

[0025] A strong adhesive 11 is fixedly connected to the left side of the front end of the metal sheet 1, and a flexible PP film 12 is fixedly connected to the right side of the front end of the metal sheet 1. An acrylic transparent adhesive 13 is fixedly connected to the front end of the flexible PP film 12. The strong adhesive 11 and the acrylic transparent adhesive 13 can be bonded to each other. The flexible PP film 12 is elastic to prevent fingers from being pinched.

[0026] Specifically, such as Figure 1 and Figure 4 As shown, during use, after the hinge is installed, the acrylic transparent adhesive 13 and the strong adhesive 11 are bonded and fixed together. After the strong adhesive 11 and the acrylic transparent adhesive 13 are fixed, the flexible PP film 12 covers the surface of the metal sheet 1. Because the flexible PP film 12 is elastic, it does not affect the opening and closing of the metal sheet 1. At the same time, because the flexible PP film 12 is arched, it can prevent the user from putting their hand between the metal sheets 1, which could lead to accidental pinching. The structure is simple and the operation is convenient.

[0027] Nylon strips 14 are fixedly connected to the top and bottom of the rotating shaft 2. A sealing strip 15 is fixedly connected to the side of the nylon strip 14 away from the rotating shaft 2. The rotating shaft 2 is fixedly connected to the sealing strip 15. The sealing strip 15 has low thermal conductivity and good heat insulation effect.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, during use, the sealing strip 15 can block the heat conduction path between the metal parts of the rotating shaft 2, significantly reducing the heat transfer efficiency and effectively improving the heat insulation performance. The nylon strip 14 can also prevent condensation or air penetration while providing heat insulation, thus preventing heat transfer.

[0029] Working Principle: In use, lubricating oil can be poured into the top box 3 through the arc-shaped hole 8. Because the three-dimensional porous structure of the modified polyurethane sponge 7 can absorb the lubricating oil through capillary action, its pores and skeleton material significantly hinder the diffusion of high-viscosity lubricating oil, making it difficult for oil molecules to detach spontaneously. External force, such as squeezing, is needed to break the bond between the sponge and oil molecules. Therefore, the disc top 5 can be pressed down periodically. During the downward pressure of the disc top 5, the spring 6 is simultaneously compressed downwards, squeezing the modified polyurethane sponge 7 and releasing the lubricating oil stored within it through the square hole 4. The lubricating oil flowing out of the square hole 4 slides down to the rotating shaft 2 due to gravity, reducing metal friction and the risk of corrosion. Lubricating oil can also be periodically added into the top box 3 through the arc-shaped hole 8 for absorption by the modified polyurethane sponge 7. Simultaneously, the external design of the metal page 1... The hinge has a narrow groove 9 and a wide groove 10. Condensation from the external environment can flow from the narrow groove 9 into the wide groove 10 and then back into the narrow groove 9. During this process, the Venturi effect increases the water flow speed, guiding rainwater or condensation to drain quickly and preventing water accumulation that could lead to corrosion. In use, after the hinge is installed, the acrylic transparent adhesive 13 and the strong adhesive 11 are bonded together. After the strong adhesive 11 and the acrylic transparent adhesive 13 are fixed, the flexible PP film 12 covers the surface of the metal hinge 1. Because the flexible PP film 12 is elastic, it does not affect the opening and closing of the metal hinge 1. At the same time, because the flexible PP film 12 is arched, it can prevent users from putting their hands between the metal hinges 1 and accidentally pinching their hands. In use, the sealing strip 15 can block the heat conduction path between the metal parts of the hinge 2, significantly reducing the heat transfer efficiency and effectively improving the heat preservation performance. The nylon strip 14 can not only provide heat insulation but also prevent condensation or air penetration.

[0030] 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.

Claims

1. A rust-proof sleeve for metal door and window hinges, comprising a metal hinge (1), characterized in that: The metal sheet (1) has multiple sets of rotating shafts (2) movably connected to its middle position, and the top of each rotating shaft (2) is fixedly connected to an anti-rust component. The rust prevention component includes a top box (3), which is fixedly connected to the top of the rotating shaft (2). The top box (3) has multiple sets of square holes (4) on its periphery. A disc top (5) is provided at the top of the top of the top box (3). Two sets of springs (6) are fixedly connected to the left and right sides of the bottom of the disc top (5). A modified polyurethane sponge (7) is provided in the middle of the bottom of the disc top (5). Multiple sets of arc-shaped holes (8) are provided at the top of the disc top (5). Multiple sets of fine grooves (9) are provided at the front end of the metal sheet (1). A wide groove (10) is fixedly connected between each pair of fine grooves (9).

2. The rust-proof sleeve for metal door and window hinges according to claim 1, characterized in that: The top box (3) is fixedly connected to the spring (6), and the spring (6) is fixedly connected to the disc top (5). The disc top (5) and the spring (6) are elastic.

3. The rust-proof sleeve for metal door and window hinges according to claim 1, characterized in that: The square hole (4) is connected to the interior of the top box (3), the square holes (4) are arranged at equal intervals, and the arc-shaped hole (8) is connected to the interior of the top box (3).

4. The rust-proof sleeve for metal door and window hinges according to claim 1, characterized in that: The external shape and size of the disc top (5) are consistent with the internal shape and size of the top box (3), and the disc top (5) can move up and down along the inside of the top box (3).

5. A rust-proof sleeve for metal door and window hinges according to claim 1, characterized in that: A strong adhesive (11) is fixedly connected to the left side of the front end of the metal sheet (1), a flexible PP film (12) is fixedly connected to the right side of the front end of the metal sheet (1), and an acrylic transparent adhesive (13) is fixedly connected to the front end of the flexible PP film (12). The strong adhesive (11) and the acrylic transparent adhesive (13) can be bonded to each other, and the flexible PP film (12) is elastic.

6. The rust-proof sleeve for metal door and window hinges according to claim 1, characterized in that: The top and bottom ends of the rotating shaft (2) are fixedly connected to a nylon strip (14), and a sealing strip (15) is fixedly connected to the side of the nylon strip (14) away from the rotating shaft (2). The rotating shaft (2) is fixedly connected to the sealing strip (15), and the sealing strip (15) has low thermal conductivity.

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