High-strength anti-deformation hinge connecting structure

By employing a design that welds the support plates of the uprights and doorposts to the pins in the hinge connection structure, and by setting a limiting pin between the female and male hinges, the problem of easy deformation of the hinges under heavy doors is solved, achieving high strength and stable door operation.

CN224379623UActive Publication Date: 2026-06-19QINGDAO PORT INT CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO PORT INT CO LTD
Filing Date
2025-04-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing hinge connection structures are prone to deformation or damage when bearing the weight of heavy doors, and cannot meet the stability requirements of frequent opening and closing operations in large facilities.

Method used

The high-strength, deformation-resistant hinge structure connecting the uprights and doorposts is adopted. The overall strength and rigidity of the connection structure are increased through the welding design of the support plate, the pin, and the sleeve. A limit pin is set between the female and male hinges to prevent loosening and to accommodate the floating of the door.

Benefits of technology

The hinge connection structure has been improved to resist deformation, ensuring stable opening and closing of the door under heavy loads and extending the service life of the hinges.

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Abstract

This utility model discloses a high-strength, deformation-resistant hinge connection structure, relating to the field of hinge connections. It includes a post and a doorpost. A male hinge is installed on one side of the post, and a female hinge is installed on the doorpost. The male hinge includes a support plate A welded and fixed to the post and a pin vertically fixed to the support plate A. The female hinge includes a support plate B welded to the doorpost and a sleeve vertically fixed to the support plate B. The sleeve can be nested around the pin. This utility model solves the technical problem in the prior art where the hinge connection structure is prone to deformation due to the excessive weight of the door.
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Description

Technical Field

[0001] This utility model relates to the field of hinge connections, and in particular to a high-strength, deformation-resistant hinge connection structure. Background Technology

[0002] A hinge is a mechanical device used to connect two objects and allow them to rotate relative to each other. It usually consists of two parts: a male hinge and a female hinge, which are installed on the two objects respectively. They are connected by means of pins or other means, so that objects such as doors and windows can open and close.

[0003] In large facilities such as ports, there are numerous gates used to separate different areas or control passageways. These gates are often large in size and weight, and require frequent opening and closing operations. Therefore, the load-bearing capacity and stability requirements for the hinge connection structure are high. Existing hinge connection structures typically include a hinge body and connecting components. The hinge body is generally made of metal and is fixed to the door body and door frame by means of screws or other methods. The connecting components are responsible for enabling the rotational connection between the two hinge bodies.

[0004] However, existing hinge connection structures have significant drawbacks when bearing the weight of heavy doors. Due to the excessive weight of the door, the hinges are prone to deformation or damage under heavy loads during frequent opening and closing operations. Utility Model Content

[0005] This application provides a high-strength, deformation-resistant hinge connection structure, which solves the technical problem in the prior art where the hinge connection structure is prone to deformation due to the excessive weight of the door.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a high-strength, deformation-resistant hinge connection structure, including a column and a door post. A male hinge is installed on one side of the column, and a female hinge is installed on the door post. The male hinge includes a support plate A welded and fixed to the column and a pin vertically fixed to the support plate A. The female hinge includes a support plate B welded to the door post and a sleeve vertically fixed to the support plate B. The sleeve can be nested outside the pin.

[0007] The male hinge consists of a support plate A welded to the door post and a pin vertically fixed to the support plate A. The female hinge consists of a support plate B welded to the door post and a sleeve vertically fixed to the support plate B. The sleeve can be nested outside the pin. This structural design effectively improves the overall strength and deformation resistance of the hinge connection structure. When the door is subjected to heavy loads, this structure can better resist deformation, ensuring the stable opening and closing of the door.

[0008] As an improvement to the above solution, a reinforcing plate is welded between the support plate A and the upright, and a reinforcing plate is also welded between the support plate B and the doorpost. This increases the overall strength and rigidity of the connection structure, allowing the male and female hinges to be more securely fixed to the upright and doorpost respectively. Thus, even under heavy loads, such as the weight of a large door or heavy-duty door, the hinge connection structure remains stable and is less prone to deformation or damage.

[0009] As a further improvement to the above solution, the sleeve of the female hinge has an axially open structure at both ends, and the male hinge passes through the sleeve from bottom to top, which facilitates the assembly and disassembly of the door.

[0010] As a further improvement to the above solution, a limit pin is installed radially after the upper end of the column pin in the joint extends out of the sleeve.

[0011] As a further improvement to the above solution, the distance from the upper surface of support plate A to the limit pin is greater than the axial dimension of the sleeve in the female hinge. Since the door is relatively heavy, rollers are generally installed at the bottom of the door. These rollers contact the ground, and during opening and closing, the door will move up and down, causing the female hinge to also move relative to the male hinge. This certain floating space between the female and male hinges allows the hinges to more flexibly adapt to minor deformations or displacements of the door when bearing load.

[0012] As a further improvement to the above solution, the limiting pin is ear-shaped, comprising a pin body that can penetrate the central pin of the hinge, with one end of the pin body bent back to form an ear-shaped profile. In use, the ear-shaped profile can engage with the outside of the central pin of the hinge, thereby effectively preventing the limiting pin from loosening or falling off under force, thus enhancing the stability of the entire hinge connection structure.

[0013] As can be seen from the above technical solutions, this utility model has at least the following technical effects or advantages:

[0014] The male hinge consists of a support plate A welded to the door post and a pin vertically fixed to the support plate A. The female hinge consists of a support plate B welded to the door post and a sleeve vertically fixed to the support plate B, with the sleeve nested around the pin. This structural design effectively improves the overall strength and deformation resistance of the hinge connection structure. When the door is subjected to heavy loads, this structure can better resist deformation, ensuring the stable opening and closing of the door. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0017] Figure 2 This is a schematic diagram of the structure of the column and the hinge in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the door post and the mother hinge in this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting pin in this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Post, 2. Doorpost, 3. Male hinge, 301. Support plate A, 302. Column pin, 4. Female hinge, 401. Support plate B, 402. Sleeve, 5. Limit pin. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this patent.

[0022] like Figures 1 to 4 As shown, a high-strength, deformation-resistant hinge connection structure includes a support post 1 and a door post 2. The support post 1, as a fixed part, is typically connected to a wall or other fixed structure. The door post 2 is connected to the door body to be connected.

[0023] A hinge 3 is installed on one side of the column 1. The hinge 3 includes a support plate A301 that is welded and fixed to the column 1. The support plate A301 is a rectangular flat plate, one side of which is tightly fitted to the column 1 and fixedly connected by welding. A pin 302 is fixed in the vertical direction of the support plate A301. The pin 302 is cylindrical, its axis is perpendicular to the support plate A301, and one end of the pin 302 is welded and fixed to the support plate A301.

[0024] A female hinge 4 is installed on the doorpost 2. The female hinge 4 includes a support plate B401 welded to the doorpost 2. The shape and fixing method of the support plate B401 are the same as those of the support plate A301, that is, one side of it is tightly fitted to the doorpost 2 and fixedly connected by welding. A sleeve 402 is fixed in the vertical direction of the support plate B401. The sleeve 402 is a cylindrical cavity structure, its axis is perpendicular to the support plate B401, and one end of the sleeve 402 is welded to the support plate B401. The diameter of the sleeve 402 is slightly larger than the diameter of the pin 302, so that the pin 302 can be smoothly nested in the outside of the sleeve 402 to form the connecting part of the hinge.

[0025] To further improve the strength and stability of the hinge connection structure, reinforcing plates are welded between support plate A301 and post 1, and between support plate B401 and doorpost 2. The reinforcing plates are flat plates in the shape of triangles or rectangles, with one side welded to the corresponding support plate and the other side welded to the post or doorpost, forming a triangular or rectangular reinforcing structure. This effectively prevents deformation of the support plates and improves the load-bearing capacity of the structure.

[0026] The sleeve 402 of the female hinge 4 has an axially open structure at both ends, and the pin 302 of the male hinge 3 passes through the sleeve 402 from bottom to top. This allows the door to be easily disassembled and assembled. When the door needs to be disassembled, simply move the door to disengage the sleeve 402 from the pin 302 of the male hinge 3; when the door needs to be installed, simply move the door to engage the sleeve 402 of the female hinge 4 with the pin 302 of the male hinge 3.

[0027] A limiting pin 5 is installed radially at the upper end of the pin 302 of the male hinge 3. The function of the limiting pin 5 is to prevent the male hinge 3 and the female hinge 4 from sliding or disengaging relative to each other when the door is closed, thereby ensuring the stability and safety of the door.

[0028] Furthermore, the distance from the upper surface of the support plate A301 to the limit pin 5 is greater than the axial dimension of the sleeve 402 in the female hinge 4. This allows for the adaptation to the vertical movement of the door during opening and closing. Specifically, due to the weight of the door, rollers are typically installed at the bottom of the door, which contact the ground. During opening and closing, the door will move up and down, causing the female hinge 4 to move relative to the male hinge 3. By providing sufficient floating space, it is ensured that the door is not restricted by the hinge connection structure during opening and closing, thus ensuring smooth opening and closing of the door.

[0029] like Figure 4As shown, the limiting pin 5 has an ear-shaped structure, which includes a pin body that can pass through the post pin 302 in the male hinge 3. One end of the pin body is bent back to form an ear-shaped profile. In use, the ear-shaped profile can engage with the outside of the post pin 302 in the male hinge 3, thereby increasing the contact area and friction between the limiting pin 5 and the post pin 302, and further improving the limiting effect of the limiting pin 5.

[0030] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in its embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A high-strength, deformation-resistant hinge connection structure, characterized in that, The device includes a pillar (1) and a doorpost (2). A male hinge (3) is installed on one side of the pillar (1), and a female hinge (4) is installed on the doorpost (2). The male hinge (3) includes a support plate A (301) welded to the pillar (1) and a pin (302) vertically fixed on the support plate A (301). The female hinge (4) includes a support plate B (401) welded to the doorpost (2) and a sleeve (402) vertically fixed on the support plate B (401). The sleeve (402) can be nested outside the pin (302).

2. The high-strength, deformation-resistant hinge connection structure according to claim 1, characterized in that, A reinforcing plate is welded between the support plate A (301) and the column (1), and a reinforcing plate is also welded between the support plate B (401) and the door post (2).

3. The high-strength, deformation-resistant hinge connection structure according to claim 1, characterized in that, The sleeve (402) of the female hinge (4) has an axially open structure at both ends, and the pin (302) of the male hinge (3) passes through the sleeve (402) from bottom to top.

4. The high-strength, deformation-resistant hinge connection structure according to claim 1, characterized in that, The upper end of the column pin (302) of the joint (3) extends out of the sleeve (402) and a limit pin (5) is installed radially.

5. The high-strength, deformation-resistant hinge connection structure according to claim 4, characterized in that, The distance from the upper surface of the support plate A (301) to the limit pin (5) is greater than the axial dimension of the sleeve (402) in the female hinge (4).

6. The high-strength, deformation-resistant hinge connection structure according to claim 4, characterized in that, The limiting pin (5) is ear-shaped, which includes a pin body that can pass through the central pin (302) of the male hinge (3). One end of the pin body is bent back to form an ear-shaped outline.