High-low-temperature impact-resistant, light-weight and environment-friendly bamboo fiber protective air-tight door

By adopting a combined structure of bamboo fiber resin reinforcement layer, bamboo fiber honeycomb core layer and aluminum alloy door frame, the problems of poor performance and heavy weight of protective airtight doors in high and low temperature environments are solved, realizing a lightweight and environmentally friendly airtight door design, and ensuring the stability and sealing of the door body.

CN223984420UActive Publication Date: 2026-03-10NANTONG NUOJIE CIVIL AIR DEFENSE ENG PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing protective airtight doors perform poorly in high and low temperature environments, are heavy and not environmentally friendly, and traditional metal materials cause structural deformation, reduced sealing performance, and inconvenient installation.

Method used

The door adopts a combination structure of bamboo fiber resin reinforcement layer, bamboo fiber honeycomb core layer and aluminum alloy door frame, combined with aerogel felt insulation layer and high-strength bamboo fiber composite reinforcing bar, and uses high and low temperature resistant rubber sealing strip to ensure the stability and sealing of the door in high and low temperature environments.

Benefits of technology

It achieves high and low temperature impact resistance, lightweight and environmentally friendly protective airtight door, ensuring normal use of the door body under extreme temperatures, reducing installation difficulty and building load, while meeting the requirements of sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high and low temperature impact-resistant, lightweight and environment-friendly bamboo fiber protective air-tight door, and relates to the technical field of protective air-tight doors, the protective air-tight door comprises an air-tight door body and a door frame arranged on one side of the air-tight door body, and further comprises a door body reinforcing assembly, an air-tight assembly, a door body connecting assembly and a door body closing assembly. Through the combined action of the bamboo fiber resin reinforcing layer, the reinforcing rods and the heat preservation layer, high and low temperature impact is effectively resisted, deformation of the door body due to thermal expansion and cold contraction is prevented, and normal use and protection performance of the door body in an extreme temperature environment are guaranteed; compared with a traditional metal protective air-tight door, the air-tight door has the advantages that the weight of the door body is greatly reduced by using the bamboo fiber composite board and the aluminum alloy door frame, installation is convenient, and the load-bearing burden of a building is reduced; the air-tight door bamboo fiber is a renewable natural material, is low in energy consumption and small in pollution in the production process, and meets the environmental protection requirement.
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Description

Technical Field

[0001] This utility model relates to the field of protective airtight door technology, specifically a bamboo fiber protective airtight door that is high and low temperature resistant, impact-resistant, lightweight and environmentally friendly. Background Technology

[0002] In certain special environments, such as military facilities, laboratories, and industrial production workshops, there are strict performance requirements for protective airtight doors.

[0003] Existing protective airtight doors often suffer from structural deformation and reduced sealing performance when exposed to high and low temperature shocks, affecting their normal use and protective effect. Traditional protective airtight doors are mostly made of metal, which has high strength but is heavy, making them difficult to install and use in daily life. Moreover, the production of metal materials is energy-intensive and polluting, which does not conform to the concept of environmental protection. Utility Model Content

[0004] This invention provides a bamboo fiber protective airtight door that is impact-resistant at high and low temperatures, lightweight, and environmentally friendly. It has the advantages of high and low temperature impact resistance, lightweight, and environmental protection, thus solving the problems of poor performance, heavy weight, and environmental unfriendliness of existing protective airtight doors in high and low temperature environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high and low temperature impact-resistant, lightweight, and environmentally friendly bamboo fiber protective airtight door, comprising an airtight door body and a door frame disposed on one side of the airtight door body, and further comprising a door body reinforcing component, an airtight component, a door body connecting component, and a door body closing component, wherein:

[0006] The airtight door body includes a bamboo fiber resin reinforcement layer and a bamboo fiber honeycomb core layer. An insulation layer is provided between the bamboo fiber resin reinforcement layer and the bamboo fiber honeycomb core layer. The insulation layer is made of aerogel felt. The door frame is made of aluminum alloy.

[0007] The door reinforcement assembly includes a support rod, which is welded to the four corners of the back side of the airtight door body. The support rod is welded with intersecting reinforcing rods along the diagonal direction. The reinforcing rods are made of high-strength bamboo fiber composite material.

[0008] The sealing component includes a rubber sealing strip, which is made of fluororubber. The door frame is provided with a sealing groove, and the rubber sealing strip fits into the sealing groove.

[0009] As a preferred technical solution of this utility model, the bamboo fiber resin reinforcement layer is composed of bamboo fiber and high-performance resin, the bamboo fiber honeycomb core layer has a honeycomb structure, and the bamboo fiber resin reinforcement layer is the outermost layer of the airtight door body.

[0010] As a preferred embodiment of the present invention, the door connecting assembly includes fixed base plates arranged symmetrically on the upper and lower sides, with a rotating shaft connecting the upper and lower fixed base plates through the shaft, and bearings passing through both ends of the rotating shaft.

[0011] As a preferred embodiment of this utility model, the upper end of the rotating shaft is welded with a bearing plate, the bottom of the bearing plate abuts against the middle of the bearing, the bottom end of the rotating shaft abuts against a bearing cylinder, and the bearing cylinder is locked onto the fixed base plate by screws.

[0012] As a preferred technical solution of this utility model, the upper and lower parts of the rotating shaft are symmetrically welded with rotating frames, the rotating frames are fixed to one side of the airtight door body by bolts, and a reinforcing frame is provided between the rotating frames. The rotating shaft passes through the reinforcing frame and is rotatably engaged.

[0013] As a preferred embodiment of the present invention, the door closing assembly includes a rotating disk, which is mounted on one side of the control box and rotates in cooperation with it. The control box is fitted with a transverse axis and slides in cooperation with it.

[0014] As a preferred technical solution of this utility model, a steering frame is welded to one end of the transverse shaft, and a closing rod is connected to the upper and lower parts of the steering frame. The closing rod passes through the limiting cylinder and is slidably engaged.

[0015] Compared with existing technologies, this utility model provides a lightweight and environmentally friendly bamboo fiber protective airtight door that is resistant to high and low temperatures and impacts, and has the following beneficial effects: This utility model effectively resists high and low temperature impacts through the combined action of the bamboo fiber resin reinforcement layer, reinforcing rod, and insulation layer, preventing the door from deforming due to thermal expansion and contraction, and ensuring the normal use and protective performance of the door in extreme temperature environments; the use of bamboo fiber composite panels and aluminum alloy door frames in this airtight door significantly reduces the weight of the door compared to traditional metal protective airtight doors, facilitating installation and reducing the load-bearing burden on buildings; bamboo fiber is a renewable natural material, with low energy consumption and minimal pollution during production, meeting environmental protection requirements; the cooperation between the high and low temperature resistant rubber sealing strip and the door frame sealing groove ensures good sealing performance of the door, meeting the needs of protective airtightness. Attached Figure Description

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

[0017] Figure 2 This is a diagram showing the internal structure of the airtight door body of this utility model;

[0018] Figure 3 This is a schematic diagram of the door reinforcement component structure for this practical application;

[0019] Figure 4 This is a structural diagram of the door connection component of this utility model;

[0020] Figure 5 This is a schematic diagram of the door closing assembly structure of this utility model.

[0021] In the diagram: 1. Airtight door body; 2. Door frame; 3. Door reinforcement assembly; 4. Airtight assembly; 5. Door connection assembly; 6. Door closing assembly; 11. Bamboo fiber resin reinforcement layer; 12. Bamboo fiber honeycomb core layer; 13. Insulation layer; 31. Support rod; 32. Reinforcing rod; 41. Rubber sealing strip; 42. Sealing groove; 51. Fixed base plate; 52. Rotating shaft; 53. Bearing; 54. Bearing plate; 55. Bearing cylinder; 56. Rotating frame; 57. Reinforcing frame; 61. Rotating disk; 62. Control box; 63. Horizontal movement shaft; 64. Directional frame; 65. Closing rod; 66. Limiting cylinder. Detailed Implementation

[0022] 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. Example 1

[0023] Please see Figures 1-5 This utility model discloses a high and low temperature impact-resistant, lightweight and environmentally friendly bamboo fiber protective airtight door, including an airtight door body 1 and a door frame 2 disposed on one side of the airtight door body 1, and also includes a door body reinforcing component 3, an airtight component 4, a door body connecting component 5, and a door body closing component 6, wherein:

[0024] Please refer to the appendix. Figure 2 The airtight door body 1 includes a bamboo fiber resin reinforcement layer 11 and a bamboo fiber honeycomb core layer 12. A heat insulation layer 13 is provided between the bamboo fiber resin reinforcement layer 11 and the bamboo fiber honeycomb core layer 12. The heat insulation layer 13 is made of aerogel felt. The door frame 2 is made of aluminum alloy. Specifically, the aluminum alloy door frame 2 achieves the characteristics of being lightweight, high-strength, and easy to install.

[0025] Please refer to the appendix. Figure 3 The door reinforcement component 3 includes a support rod 31, which is welded to the four corners of the back side of the airtight door body 1. The support rod 31 is welded with intersecting reinforcement rods 32 along the diagonal direction. The reinforcement rods 32 are made of high-strength bamboo fiber composite material. Specifically, the high-strength bamboo fiber composite material of the reinforcement rods 32 can ensure a stable structure and is not easily deformed or damaged when the door is subjected to thermal expansion and contraction stress caused by high and low temperature impacts and accidental impacts.

[0026] The sealing component 4 includes a rubber sealing strip 41, which is made of fluororubber. The door frame 2 is provided with a sealing groove 42, and the rubber sealing strip 41 fits into the sealing groove 42. Specifically, the fluororubber material can maintain good elasticity and sealing performance in both high and low temperature environments.

[0027] The bamboo fiber resin reinforcement layer 11 is composed of bamboo fiber and high-performance resin. The bamboo fiber honeycomb core layer 12 has a honeycomb structure. The bamboo fiber resin reinforcement layer 11 is the outermost layer of the airtight door body 1. Specifically, the honeycomb structure can effectively disperse external forces, obtain strong strength and rigidity with a small mass, and achieve impact resistance and lightweight of the door body.

[0028] In this embodiment, the bamboo fiber resin reinforcement layer 11 can effectively resist the erosion of the door body by high and low temperature environments, the bamboo fiber honeycomb core layer 12 provides stable structural support for the door body, greatly reduces the weight of the door body, and realizes lightweight design, the thermal insulation layer 13 of aerocondensed felt material effectively prevents heat transfer and improves the thermal insulation performance of the door body, and the reinforcing rod 32 further enhances the structural strength of the door body. Example 2

[0029] Based on the above embodiment 1, please refer to the appendix. Figure 4 as well as Figure 5 The door connecting component 5 includes a fixed base plate 51 arranged symmetrically on the upper and lower sides, and a rotating shaft 52 is connected between the upper and lower fixed base plates 51. Bearings 53 pass through both ends of the rotating shaft 52. Specifically, the bearings 53 assist the rotating shaft 52 to rotate, making it easier to open and close the airtight door body 1.

[0030] The upper end of the rotating shaft 52 is welded with a bearing plate 54, the bottom of the bearing plate 54 abuts against the middle of the bearing 53, and the bottom end of the rotating shaft 52 abuts against the bearing cylinder 55. The bearing cylinder 55 is locked onto the fixed base plate 51 by screws. Specifically, the bearing cylinder 55 and the bearing plate 54 support the upper and lower parts of the rotating shaft 52.

[0031] Rotating frames 56 are symmetrically welded to the upper and lower parts of the rotating shaft 52. The rotating frames 56 are fixed to one side of the airtight door body 1 by bolts. A reinforcing frame 57 is provided between the rotating frames 56. The rotating shaft 52 passes through the reinforcing frame 57 and rotates in cooperation with it. Specifically, the reinforcing frame 57 and the rotating frame 56 support the airtight door body 1 and rotate in cooperation with the rotating shaft 52 to complete the opening and closing of the airtight door body 1.

[0032] The door closing assembly 6 includes a rotating disk 61, which is mounted on one side of the control box 62 and rotates in cooperation with it. The control box 62 is fitted with a transverse axis 63 and slides in cooperation with it.

[0033] One end of the transverse shaft 63 is welded to the deflector frame 64. The upper and lower parts of the deflector frame 64 are connected to the closing rod 65. The closing rod 65 passes through the limiting cylinder 66 and is slidably engaged. Specifically, the deflector frame 64 is fitted into the side of the airtight door body 1. One end rotates after being pushed by the transverse shaft 63, which in turn causes the other end to tilt up and push the closing rod 65 to move.

[0034] In this embodiment, when the airtight door body 1 needs to be closed, the rotating disk 61 on the rotatable control box 62 drives the transverse axis 63 to move, thereby pushing the change frame 64. The change frame 64 pushes the closing rod 65 to slide in the limit cylinder 66. Finally, the closing rod 65 extends into the limit hole on the building to complete the door closing.

[0035] The working principle and usage process of this utility model are as follows: First, the aluminum alloy door frame 2 is installed at the door opening of the building to ensure that the installation is firm and flat. Then, the fixing base plate 51 is fixed to the wall on one side of the door opening with bolts. Then, the airtight door body 1 is locked to the rotating frame 56 and the reinforcing frame with bolts to complete the installation of the airtight door.

[0036] The bamboo fiber resin reinforcement layer 11 is made of bamboo fiber and high-performance resin through hot pressing, and has high strength, wear resistance and good weather resistance, which can effectively resist the corrosion of the door body by high and low temperature environments; the bamboo fiber honeycomb core layer 12 provides stable structural support for the door body, while greatly reducing the weight of the door body and realizing lightweight design. At the same time, the aluminum alloy material of the door frame 2 is lightweight and high-strength, which matches the bamboo fiber door body and meets the requirements of lightweight and environmental protection; the thermal insulation layer 13 of aerocondensed felt material effectively prevents heat transfer, improves the thermal insulation performance of the door body, and reduces the impact of high and low temperature environments on the interior of the door body and the protected space;

[0037] When the sealed door body 1 is closed, the rubber sealing strip 41 fits into the sealing groove 42 of the door frame 2. The high and low temperature resistant rubber material can maintain good elasticity and sealing performance in both high and low temperature environments, ensuring that there is no gap between the door body and the door frame after the door is closed, effectively preventing the intrusion of air, dust, water vapor and other substances.

Claims

1. A high-low temperature impact-resistant and lightweight environmentally friendly bamboo fiber protective sealed door, comprising a sealed door body (1) and a door frame (2) arranged on one side of the sealed door body (1), characterized in that, Also include door body reinforcing assembly (3), sealing assembly (4), door body link assembly (5), door body closing assembly (6), wherein: The sealing door body (1) comprises a bamboo fiber resin reinforced layer (11) and a bamboo fiber honeycomb core layer (12), a thermal insulation layer (13) is arranged between the bamboo fiber resin reinforced layer (11) and the bamboo fiber honeycomb core layer (12), the thermal insulation layer (13) is of aerogel felt material, and the door frame (2) is of aluminum alloy material; The door body reinforcing assembly (3) comprises a support rod (31), the support rod (31) is welded at the back side of the sealing door body (1) at four corners, the support rod (31) is welded with a cross reinforcing rod (32) along the diagonal direction, and the reinforcing rod (32) is made of high-strength bamboo fiber composite material; The sealing assembly (4) comprises a rubber sealing strip (41), the rubber sealing strip (41) is made of fluororubber, the door frame (2) is provided with a sealing groove (42), and the rubber sealing strip (41) is embedded in the sealing groove (42).

2. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 1, characterized in that: The bamboo fiber resin reinforced layer (11) is composed of bamboo fiber and high-performance resin, the bamboo fiber honeycomb core layer (12) is of a honeycomb structure, and the bamboo fiber resin reinforced layer (11) is the outermost layer of the sealing door body (1).

3. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 1, characterized in that: The door body link assembly (5) comprises upper and lower fixed base plates (51) symmetrically arranged, a rotating shaft (52) is penetrated and linked between the upper and lower fixed base plates (51), and both ends of the rotating shaft (52) penetrate bearings (53).

4. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 3, characterized in that: The upper end of the rotating shaft (52) is welded with a bearing disc (54), the bottom of the bearing disc (54) abuts against the middle part of the bearing (53), the bottom end of the rotating shaft (52) abuts against a bearing cylinder (55), and the bearing cylinder (55) is locked on the fixed base plate (51) by a screw.

5. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 4, characterized in that: Symmetrical rotating frames (56) are welded on the upper and lower parts of the rotating shaft (52), the rotating frames (56) are fixed on one side of the sealing door body (1) by bolts, a reinforcing frame (57) is arranged between the rotating frames (56), and the rotating shaft (52) penetrates the reinforcing frame (57) and rotates in cooperation.

6. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 5, characterized in that: The door body closing assembly (6) comprises a rotating disc (61), the rotating disc (61) is installed on one side of a control box (62) and rotates in cooperation, the control box (62) is embedded with a transverse shaft (63) and slides in cooperation.

7. The high-low temperature impact-resistant, lightweight, environmentally friendly bamboo fiber protective sealed door according to claim 6, characterized in that: The transverse shaft (63) is welded with a direction changing frame (64) at one end, the direction changing frame (64) is linked with a closing rod (65) at the upper and lower parts, and the closing rod (65) penetrates a limiting cylinder (66) and slides in cooperation.