Wood ladder hinge with multi-layer composite structure

Abstract

The wood ladder hinge of the multi-layer composite structure comprises a hinge main body and a nut, a first installation hole is formed in the hinge main body, a threaded bolt is installed in the first installation hole, the nut is installed at the top end of the threaded bolt, and the first installation hole is communicated with the first installation hole. When the lower end face of the hinge body is attached to the upper end face of the wooden ladder for installation, the protective layer made of rubber materials is attached to the wooden ladder, friction force between the hinge body and the wooden ladder can be increased, the hinge can be more stably attached to the wooden ladder and is not prone to sliding or falling off, and the rubber materials have certain moisture-proof performance, so that the hinge is more convenient to install. According to the wood ladder hinge, moisture can be isolated to a certain extent, the wood ladder is prevented from being affected with damp and deforming, then the waterproof layer arranged on the hinge body is made of polyurethane or polyvinyl chloride, the moisture resistance of the hinge is enhanced, the deformation problem caused by damp is prevented, and the overall stability and durability of the hinge are also improved through the design of the multi-layer composite structure.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically a multi-layer composite wooden ladder hinge. Background Technology

[0002] A hinge is a hinged component used to connect two objects, allowing them to open and close relative to each other. A hinge typically has two leaf plates: the first leaf plate is installed on the main body of the object, and the second leaf plate is installed on the secondary body. The two leaf plates are pivotally connected, enabling relative opening and closing. A hinge, also known as a hinge leaf, is a component that connects two parts of an object and allows them to move. It is mainly used for the installation of doors, windows, furniture, cabinets, etc.

[0003] However, existing hinges are easily damaged by moisture, and bolts can loosen after prolonged use. Therefore, this design proposes a multi-layered composite wooden ladder hinge. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer composite wooden ladder hinge to solve the problems that hinges are easily damaged by moisture erosion and that bolts can easily loosen after long-term operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite wooden ladder hinge, comprising a hinge body and a nut. The hinge body has a first mounting hole inside, a threaded bolt is installed inside the first mounting hole, a nut is installed at the top of the threaded bolt, a mounting cap is installed at the upper end of the nut, a protective hole is provided on the lower end face of the mounting cap, and locking bolts are installed at four ends of the upper end face of the mounting cap. A limiting plate is installed at the front end of the hinge body, a second mounting hole is provided inside the limiting plate, a fixing rod is installed on the outer wall of the limiting plate, a connecting shaft is installed at the end of the fixing rod, a connecting block is installed on the outer surface of the connecting shaft, and a connecting rope is installed inside the connecting block.

[0006] Preferably, the hinge body includes a waterproof layer and a protective layer, with the waterproof layer provided on the upper surface of the hinge body and the protective layer provided on the lower surface of the hinge body.

[0007] Preferably, the protective layer is made of rubber material.

[0008] Preferably, the first mounting hole is threadedly connected to the threaded bolt, and the first mounting hole is evenly distributed along the upper end face of the hinge body.

[0009] Preferably, the mounting cover is fitted to the nut through a protective hole, and the locking bolts are configured in four sets.

[0010] Preferably, the connecting rope forms a rotating structure with the fixed rod through the connecting block and the connecting shaft, and the second mounting hole is set in four sets.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When installing this hinge by attaching the lower end of the hinge body to the upper end of the wooden ladder, the protective layer of rubber material increases the friction between the hinge body and the wooden ladder, making the hinge more firmly attached to the wooden ladder and less prone to slipping or falling off. In addition, the rubber material has a certain moisture-proof performance, which can isolate moisture to a certain extent and prevent the wooden ladder from deforming due to moisture. Furthermore, the waterproof layer of the hinge body is made of polyurethane or polyvinyl chloride, which enhances the moisture-proof performance of the hinge and prevents deformation caused by moisture. The multi-layer composite structure design also improves the overall stability and durability of the hinge.

[0013] 2. When the nuts and bolts of this utility model are rotated to securely connect with the wooden ladder, align the protective holes on the mounting cover evenly with the nuts, and then rotate the locking bolts to tighten the mounting cover onto the hinge body. This achieves the effect of squeezing and fixing the nuts, creating an additional fixing point between the nuts and the hinge body, which helps prevent the nuts and bolts from loosening or falling off, thus ensuring a more stable and reliable connection between the hinge and the wooden ladder. Then, when the wooden ladder is opened and closed by the hinge, the installed limiting plate adheres to the side wall of the wooden ladder and is tightened through the second mounting hole under the action of the bolts. The connecting rope is rotatably connected to the fixing rod through the connecting block and connecting shaft, which is used to provide a certain degree of support and tension for the wooden ladder, improving the stability of the wooden ladder during use. Attached Figure Description

[0014] Figure 1 This is a frontal cross-sectional view of the present invention.

[0015] Figure 2 This is a schematic diagram of the mounting cover connection structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the hinge of this utility model.

[0017] In the diagram: 1. Hinge body; 101. Waterproof layer; 102. Protective layer; 2. First mounting hole; 3. Threaded bolt; 4. Nut; 5. Mounting cap; 6. Protective hole; 7. Locking bolt; 8. Limiting plate; 9. Second mounting hole; 10. Fixing rod; 11. Connecting shaft; 12. Connecting block; 13. Connecting rope. Detailed Implementation

[0018] 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.

[0019] See also Figure 1-3 This utility model provides a technical solution: a multi-layer composite wooden ladder hinge, including a hinge body 1 and a nut 4. The hinge body 1 has a first mounting hole 2 inside, a threaded bolt 3 is installed inside the first mounting hole 2, a nut 4 is installed at the top of the threaded bolt 3, a mounting cover 5 is installed at the upper end of the nut 4, a protective hole 6 is opened at the lower end of the mounting cover 5, and locking bolts 7 are installed at the four ends of the upper end of the mounting cover 5. A limit plate 8 is installed at the front end of the hinge body 1, a second mounting hole 9 is opened inside the limit plate 8, a fixing rod 10 is installed on the outer wall of the limit plate 8, a connecting shaft 11 is installed at the end of the fixing rod 10, a connecting block 12 is installed on the outer surface of the connecting shaft 11, and a connecting rope 13 is installed inside the connecting block 12.

[0020] Furthermore, the hinge body 1 includes a waterproof layer 101 and a protective layer 102. The upper surface of the hinge body 1 is provided with the waterproof layer 101, and the lower surface of the hinge body 1 is provided with the protective layer 102. The protective layer 102 is made of rubber material. When the lower surface of the hinge body 1 is attached to the upper surface of the wooden ladder for installation, the protective layer 102 of the rubber material is attached to the wooden ladder, which can increase the friction between the hinge body 1 and the wooden ladder, making the hinge more firmly attached to the wooden ladder and less likely to slip or fall off. In addition, the rubber material has a certain moisture-proof performance, which can isolate moisture to a certain extent and prevent the wooden ladder from deforming due to moisture. The waterproof layer 101 of the hinge body 1 is made of polyurethane or polyvinyl chloride, which enhances the moisture-proof performance of the hinge and prevents deformation caused by moisture. The multi-layer composite structure design also improves the overall stability and durability of the hinge.

[0021] Furthermore, the first mounting hole 2 is threadedly connected to the threaded bolt 3. The first mounting hole 2 is evenly distributed along the upper end face of the hinge body 1. The threaded bolt 3 is used to install the hinge body 1 onto the wooden ladder through the nut 4.

[0022] Furthermore, the mounting cover 5 is fitted to the nut 4 through the protective hole 6. The locking bolts 7 are set in four groups. When the nut 4 and the threaded bolt 3 are rotated to fasten the connection with the wooden ladder, the protective hole 6 on the mounting cover 5 is evenly aligned with the nut 4. Then, the locking bolts 7 are rotated to fasten the mounting cover 5 to the hinge body 1, thereby achieving the function of squeezing and fixing the nut 4. This can form an additional fixing point between the nut 4 and the hinge body 1, which helps to prevent the nut 4 and the threaded bolt 3 from loosening or falling off, thus ensuring a more stable and reliable connection between the hinge and the wooden ladder.

[0023] Furthermore, the connecting rope 13 forms a rotating structure with the fixed rod 10 through the connecting block 12 and the connecting shaft 11. The second mounting hole 9 is set in four sets. When the wooden ladder is opened and closed by the hinge, the installed limiting plate 8 is attached to the side wall of the wooden ladder and is tightened by bolts through the second mounting hole 9. Then, the connecting rope 13 is rotatably connected to the fixed rod 10 through the connecting block 12 and the connecting shaft 11 to provide a certain support and tension between the wooden ladders, thereby improving the stability of the wooden ladder during use.

[0024] Working principle: When the installed nut 4 and threaded bolt 3 are rotated to securely connect with the wooden ladder, the protective hole 6 on the mounting cover 5 is evenly aligned with the nut 4. Then, the locking bolt 7 is rotated to tighten the mounting cover 5 onto the hinge body 1, achieving the effect of squeezing and fixing the nut 4. This creates an additional fixing point between the nut 4 and the hinge body 1, helping to prevent the nut 4 and threaded bolt 3 from loosening or falling off, thus ensuring a more stable and reliable connection between the hinge and the wooden ladder. Then, when the wooden ladder is opened and closed by the hinge, the installed limiting plate 8 is attached to the side wall of the wooden ladder and tightened through the second mounting hole 9 under the action of the bolt. Then, the connecting rope 13 is connected to the fixing rod 10 through the connecting block 12 and the connecting shaft 11. The rotating connection provides support and tension between the wooden ladders, improving their stability during use. When installing the hinge body 1 by attaching its lower end to the upper end of the ladder, the protective layer 102 of rubber material increases the friction between the hinge body 1 and the ladder, ensuring a more secure fit and preventing slippage or detachment. The rubber material also provides moisture resistance, preventing moisture buildup and deformation of the ladder. Furthermore, the waterproof layer 101 on the hinge body 1, made of polyurethane or polyvinyl chloride, enhances the hinge's moisture resistance, preventing deformation due to dampness. The multi-layered composite structure also improves the overall stability and durability of the hinge.

[0025] 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 multi-layer composite wooden ladder hinge, comprising a hinge body (1) and a nut (4), characterized in that: The hinge body (1) has a first mounting hole (2) inside, a threaded bolt (3) is installed inside the first mounting hole (2), a nut (4) is installed at the top of the threaded bolt (3), a mounting cover (5) is installed at the upper end of the nut (4), a protective hole (6) is opened at the lower end of the mounting cover (5), and locking bolts (7) are installed at the four ends of the upper end of the mounting cover (5). A limit plate (8) is installed at the front end of the hinge body (1), a second mounting hole (9) is opened inside the limit plate (8), a fixing rod (10) is installed on the outer wall of the limit plate (8), a connecting shaft (11) is installed at the end of the fixing rod (10), a connecting block (12) is installed on the outer surface of the connecting shaft (11), and a connecting rope (13) is installed inside the connecting block (12).

2. The multi-layer composite wooden ladder hinge according to claim 1, characterized in that: The hinge body (1) includes a waterproof layer (101) and a protective layer (102). The upper surface of the hinge body (1) is provided with a waterproof layer (101), and the lower surface of the hinge body (1) is provided with a protective layer (102).

3. The multi-layer composite wooden ladder hinge according to claim 2, characterized in that: The protective layer (102) is made of rubber.

4. The multi-layer composite wooden ladder hinge according to claim 1, characterized in that: The first mounting hole (2) is threadedly connected to the threaded bolt (3), and the first mounting hole (2) is evenly distributed along the upper end face of the hinge body (1).

5. The multi-layer composite wooden ladder hinge according to claim 1, characterized in that: The mounting cover (5) is fitted to the nut (4) through the protective hole (6), and the locking bolts (7) are set in four groups.

6. The multi-layer composite wooden ladder hinge according to claim 1, characterized in that: The connecting rope (13) forms a rotating structure with the fixed rod (10) through the connecting block (12) and the connecting shaft (11), and the second mounting hole (9) is set in four groups.

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