Glass fiber reinforced plastic hinge for glass fiber reinforced plastic tunnel protective door

Abstract

The utility model relates to a glass fiber reinforced plastic hinge for a glass fiber reinforced plastic tunnel protective door, which aims to solve the technical problem that the hinge is damaged when the door is opened by a machine and a worker with overlarge force at present, and comprises a fixing plate, two fixing blocks are fixedly connected to one side of the fixing plate, and a connecting shaft is fixedly connected between the two fixing blocks. One end of the connecting shaft penetrates out of one side of the other fixed block, a mounting groove is formed in one side of the movable block, and a buffering piece matched with the interior of the mounting groove is arranged on one side of the fixed plate. According to the glass fiber reinforced plastic hinge for the glass fiber reinforced plastic tunnel protective door, the structure of an existing glass fiber reinforced plastic hinge for the glass fiber reinforced plastic tunnel protective door is improved, in the door opening process, the movable block drives the elastic piece in the mounting groove to elastically deform, impact energy is effectively absorbed through deformation elastic force of the elastic piece, stable buffering is achieved, resilience force is further counteracted, and rigid collision is avoided. Besides, main components such as the fixed plate, the fixed block and the movable block of the hinge are all made of high-strength and high-corrosion-resistance glass fiber reinforced plastic composite materials, so that the corrosion resistance of the hinge is remarkably enhanced, and the hinge has longer service life and higher reliability in humid and corrosive environments such as tunnels.

Description

Technical Field

[0001] This utility model relates to the technical field of hinges for fiberglass tunnel protective doors, and in particular to a fiberglass hinge for fiberglass tunnel protective doors. Background Technology

[0002] As a key component of tunnel safety facilities, the durability and load-bearing capacity of the hinges of fiberglass tunnel safety doors directly affect the service life and reliability of the doors. Currently, traditional hinges are mostly made of metal, which, although possessing high strength, are prone to rusting and aging in the humid and corrosive environment of tunnels, increasing maintenance costs. While existing fiberglass hinges are corrosion-resistant, they generally suffer from insufficient mechanical strength and are prone to cracking at connection points, making it difficult to meet the requirements of frequent opening and closing and long-term load-bearing of tunnel safety doors. Therefore, there is an urgent need to develop a fiberglass hinge that combines high mechanical properties, corrosion resistance, and long service life to solve the technical problems of material performance imbalance and insufficient structural reliability in existing technologies.

[0003] In existing technologies, hinges typically lack internal shock-absorbing structures, making security doors susceptible to excessive instantaneous impact forces during opening and closing. For example, when the door leaf is pushed quickly by mechanical devices or manually, the lack of a buffer mechanism causes the hinge to withstand severe rigid collisions. Long-term use may lead to metal fatigue, loosening of connectors, and other problems, thereby reducing the hinge's rotational flexibility and structural stability. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a fiberglass hinge for fiberglass tunnel protective doors, so as to solve the technical problem of damage to the hinge when the door is opened by machine or manually due to excessive force.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A fiberglass hinge for a fiberglass tunnel protective door is designed, including a fixed plate. Two fixed blocks are fixedly connected to one side of the fixed plate, and a connecting shaft is fixedly connected between the two fixed blocks. One end of the connecting shaft passes through one side of another fixed block. A movable block is rotatably fitted around the connecting shaft. An installation groove is provided on one side of the movable block. A buffer element that mates with the installation groove is provided on one side of the fixed plate. The buffer element includes a pad fixedly connected to one side of the fixed plate, a spring sheet on one side of the pad, which elastically engages with the installation groove. A buffer spring is provided on one side of the pad, and a buffer block is provided at one end of the buffer spring, which mates with one side of the spring sheet.

[0006] Preferably, the fixed block is arched to better fit the installation of the connecting shaft. The two fixed blocks are installed symmetrically with a distance between them. The connecting shaft has two bearings that rotate around it, and the two bearings rotate around the two sides of the movable block respectively.

[0007] Preferably, the spring is curved to reduce deformation due to elastic force, and one end of the spring passes through one side of the mounting groove and is connected to the inner wall of the mounting groove.

[0008] Preferably, the buffer block is a convex block, which can better adapt to the curvature of the spring sheet. The other end of the buffer spring is fixedly connected to one side of the fixed plate, and the spring sheet is elastically engaged with one side of the fixed plate through the buffer spring and the buffer block.

[0009] Preferably, the movable block is a right-angled triangle, and two irregularly shaped plates are fixedly connected to both sides of the movable block. Two second fixing holes are opened through the upper and lower sides of the irregularly shaped plates.

[0010] Preferably, the upper and lower sides of the fixing plate are provided with a plurality of first fixing holes.

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

[0012] This utility model improves the existing fiberglass hinge structure for fiberglass tunnel protective doors. During the opening process, the movable block causes the spring in the mounting groove to undergo elastic deformation. The deformation elasticity of the spring effectively absorbs the impact energy and achieves smooth buffering. When closing the door, the movable block causes the spring to return to its original position. At the same time, the synergistic effect of the buffer block and the buffer spring further offsets the rebound force and avoids rigid collisions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of one side of the bearing structure of this utility model;

[0015] Figure 3 This is a schematic diagram of one side of the cross-sectional structure of the spring clip of this utility model;

[0016] In the diagram: 1. Fixed plate; 2. Fixed block; 3. Connecting shaft; 4. Bearing; 5. Movable block; 6. Pad; 7. Buffer spring;

[0017] 101. First fixing hole;

[0018] 501, Second fixing hole; 502, Mounting slot;

[0019] 601. Shrapnel;

[0020] 701. Buffer block. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] A fiberglass hinge for a fiberglass tunnel safety door, see [link / reference]. Figures 1 to 3 The system includes a fixed plate 1, with two fixed blocks 2 fixedly connected to one side of the fixed plate 1. A connecting shaft 3 is fixedly connected between the two fixed blocks 2, with one end of the connecting shaft 3 extending through one side of the other fixed block 2. A movable block 5 is rotatably fitted around the connecting shaft 3. A mounting groove 502 is provided on one side of the movable block 5. A buffer element that mates with the mounting groove is provided on one side of the fixed plate 1. The buffer element includes a pad 6 fixedly connected to one side of the fixed plate 1, with a spring piece 601 on one side of the pad 6. The spring piece 601 elastically engages with the mounting groove 502. A buffer element is also provided on one side of the pad 6. A buffer spring 7 is provided at one end, with a buffer block 701 that cooperates with one side of the spring piece 601. This utility model improves the existing fiberglass hinge structure for fiberglass tunnel protective doors. During the opening process, the movable block 5 causes the spring piece 601 in the mounting groove to undergo elastic deformation. The deformation elastic force of the spring piece 601 effectively absorbs the impact energy and achieves smooth buffering. When closing the door, the movable block 5 causes the spring piece 601 to return to its original position. At the same time, the synergistic effect of the buffer block 701 and the buffer spring 7 further offsets the rebound force and avoids rigid collisions.

[0023] Specifically, the fixed block 2 is arched to better fit the installation of the connecting shaft 3. The two fixed blocks 2 are installed symmetrically with a distance between them. The connecting shaft 3 has two bearings 4 that rotate around it. The two bearings 4 rotate around the two sides of the movable block 5 respectively. This utility model optimizes the structural design of the fixed block 2, making its assembly with the connecting shaft 3 more precise and tight, effectively improving the overall rigidity and load-bearing capacity of the hinge. The two bearings 4 symmetrically arranged around the connecting shaft 3 not only greatly reduce the frictional resistance during rotation, but also make the rotation of the movable block 5 smoother and more stable.

[0024] Furthermore, the spring piece 601 is curved to reduce deformation under elastic force. One end of the spring piece 601 passes through one side of the mounting groove 502 and is connected to the inner wall of the mounting groove 502. By designing the spring piece 601 as a curved structure, this utility model can generate greater elastic potential energy when deformed under force, thereby significantly enhancing the buffering effect. When the spring piece 601 moves in the mounting groove 502, it can increase the stability of the movable block 5.

[0025] It is worth noting that the buffer block 701 is a convex block, which can better adapt to the curvature of the spring 601. The other end of the buffer spring 7 is fixedly connected to one side of the fixed plate 1. The spring 601 is elastically engaged with one side of the fixed plate 1 through the buffer spring 7 and the buffer block 701. By designing the buffer block 701 as a convex structure, this utility model can form a more precise contact with the curved surface of the spring 601, effectively avoiding the misalignment or uneven local force that may occur in traditional planar contact. Through the curved surface and convex structure, the rebound force of the spring 601 can be absorbed and released smoothly and efficiently by the buffer block 701 and 7.

[0026] It is worth mentioning that the movable block 5 is a right-angled triangle, and two irregularly shaped plates are fixedly connected to both sides of the movable block 5. Two second fixing holes 501 are opened through the upper and lower sides of the irregularly shaped plates. By setting two irregularly shaped plates and opening fixing holes on the movable block 5, the contact surface of the movable block 5 forms a stable square structure, which significantly improves the overall stability and reliability of the hinge.

[0027] It is worth noting that multiple first fixing holes 101 are provided through the upper and lower sides of the fixing plate 1; the multiple fixing holes on one side of the fixing plate 1 form a square, which can increase the stability of the installation.

[0028] Working principle: The working principle of this utility model is as follows: When the protective door is opened mechanically or manually, the fixed plate 1 fixed to the side of the wall remains stationary, while the door body moves and drives the movable block 5 to rotate around the connecting shaft 3. This rotational motion is achieved smoothly through the bearings 4 on both sides. During the opening process, the movable block 5 pushes the spring piece 601 to fold and deform in the opposite direction on the pad block 6 side, using the generated elastic potential energy to buffer the impact force. When closing, the movable block 5 drives the spring piece 601 to reset. At this time, the spring piece 601 contacts the buffer block 701 and presses down the buffer spring 7. The reset elastic force is effectively dispersed through the compression deformation of the spring, thereby achieving bidirectional buffer protection and ensuring the stability and durability of the hinge during the repeated opening and closing of the door.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A fiberglass hinge for a fiberglass tunnel safety door, characterized in that, Includes a fixed plate (1), two fixed blocks (2) are fixedly connected to one side of the fixed plate (1), a connecting shaft (3) is fixedly connected between the two fixed blocks (2), one end of the connecting shaft (3) passes through one side of the other fixed block (2), a movable block (5) is rotatably fitted around the connecting shaft (3), an installation groove (502) is provided on one side of the movable block (5), and a buffer component that mates with the installation groove is provided on one side of the fixed plate (1); The buffer includes a pad (6) fixedly connected to one side of the fixed plate (1), a spring (601) is provided on one side of the pad (6), the spring (601) is elastically engaged with the mounting groove (502), a buffer spring (7) is provided on one side of the pad (6), a buffer block (701) is provided at one end of the buffer spring (7), and the buffer block (701) is engaged with one side of the spring (601).

2. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 1, characterized in that, The fixed block (2) is arched to better fit the installation of the connecting shaft (3). The two fixed blocks (2) are installed symmetrically with a distance between them. The circumference of the connecting shaft (3) is fitted with two bearings (4). The circumference of the two bearings (4) is fitted with the two sides of the movable block (5) respectively.

3. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 2, characterized in that, The spring piece (601) is curved to reduce deformation due to elastic force. One end of the spring piece (601) passes through one side of the mounting groove (502) and is connected to the inner wall of the mounting groove (502).

4. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 3, characterized in that, The buffer block (701) is a convex block that can better fit the curvature of the spring (601). The other end of the buffer spring (7) is fixedly connected to one side of the fixed plate (1). The spring (601) is elastically engaged with one side of the fixed plate (1) through the buffer spring (7) and the buffer block (701).

5. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 4, characterized in that, The movable block (5) is a right-angled triangle. Two irregular plates are fixedly connected to both sides of the movable block (5). Two second fixing holes (501) are opened through the upper and lower sides of the irregular plates.

6. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 4, characterized in that, Multiple first fixing holes (101) are provided through the upper and lower sides of the fixing plate (1).

7. The fiberglass hinge for a fiberglass tunnel protective door as described in claim 4, characterized in that, The fixed plate (1), fixed block (2), and movable block (5) are all made of fiberglass.

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