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CN-118407697-B - Bionic tortoise shell protective door and preparation method thereof

CN118407697BCN 118407697 BCN118407697 BCN 118407697BCN-118407697-B

Abstract

The invention discloses a bionic tortoise shell protective door and a preparation method thereof, the bionic tortoise shell protective door comprises a bionic tortoise shell door leaf, a door frame and hinge leaves for connecting the bionic tortoise shell door leaf and the door frame, wherein the bionic tortoise shell door leaf comprises an outer spherical shell panel for connecting the hinge leaves, an inner spherical shell panel concentrically arranged with the outer spherical shell panel, a connecting ring for connecting the outer spherical shell panel and the inner spherical shell panel and a bionic tortoise shell sandwich plate arranged between the outer spherical shell panel and the inner spherical shell panel, the outer spherical shell panel, the inner spherical shell panel and the connecting ring enclose a cavity, the bionic tortoise shell sandwich plate divides the cavity into a plurality of filling cavities, a buffer energy absorption layer is arranged in the filling cavities, and a filling hole and a packaging structure for plugging the filling hole are arranged on the connecting ring.

Inventors

  • LIAO JINJUN
  • GAO JIMIN
  • DU CHUNAN
  • HE JIANI
  • WANG JIANGUO
  • YANG JIANYONG

Assignees

  • 中国铁建重工集团股份有限公司

Dates

Publication Date
20260505
Application Date
20240425

Claims (7)

  1. 1. A bionic tortoise shell protective door is characterized in that, Comprises a bionic tortoise shell door leaf (1), a door frame (2) and a hinge (3) for connecting the bionic tortoise shell door leaf (1) and the door frame (2), The bionic turtle shell door leaf (1) comprises an outer spherical shell panel (11) for connecting the hinge (3), an inner spherical shell panel (12) concentrically arranged with the outer spherical shell panel (11), a connecting ring (13) for connecting the outer spherical shell panel (11) and the inner spherical shell panel (12) and a bionic turtle shell sandwich plate (14) arranged between the outer spherical shell panel (11) and the inner spherical shell panel (12), The outer spherical shell panel (11), the inner spherical shell panel (12) and the connecting ring (13) enclose a cavity, the bionic turtle shell sandwich plate (14) divides the cavity into a plurality of filling cavities (15), a buffer energy absorption layer (16) is arranged in the filling cavities (15), A filling hole (131) and a packaging structure (132) for sealing the filling hole (131) are arranged on the connecting ring (13), The bionic tortoise shell sandwich plate (14) comprises a regular polygon frame (141) and a connecting plate (142) for connecting the vertex of the regular polygon frame (141) with the connecting ring (13), The projection of the connecting plate (142) on the radial plane of the connecting ring (13) is distributed along the radial direction of the connecting ring (13), the regular polygon frame (141) comprises a central frame (1411) and peripheral frames closely distributed around the central frame (1411), the vertex of the peripheral frame is connected with the connecting ring (13) through the connecting plate (142), The door frame (2) comprises a frame plate (21) for connecting a wall body and a vertical plate (22) supported by the frame plate (21), wherein the vertical plate (22) is provided with a door opening matched with the bionic tortoise shell door leaf (1).
  2. 2. The bionic tortoise shell protection door according to claim 1, wherein, An angle support (143) is arranged at the connecting end of the connecting plate (142) and the connecting ring (13).
  3. 3. The bionic tortoise shell protection door according to claim 1, wherein, The bionic turtle shell sandwich plate (14) is provided with through holes (144) for communicating two adjacent filling cavities (15).
  4. 4. A method for preparing the bionic tortoise shell protective door, which is characterized by comprising the following steps of: S1, preparing a door frame (2), namely obtaining a frame plate (21) and a vertical plate (22) by stamping and flame cutting steel, welding two adjacent frame plates (21), and welding the frame plate (21) and the vertical plate (22); S2, preparing a bionic tortoise shell door leaf (1), namely punching and bending steel materials to obtain an outer spherical shell panel (11) and an inner spherical shell panel (12), punching, bending and flame cutting steel materials to obtain an integrated structure of a bionic tortoise shell sandwich plate (14) and a connecting ring (13), respectively welding the connecting ring (13) and the bionic tortoise shell sandwich plate (14) with the outer spherical shell panel (11), and welding the inner spherical shell panel (12) with the connecting ring (13); s3, pouring shear thickening fluid into the filling cavity (15) to form a buffer energy absorption layer (16); S4, welding the hinge (3) to the bionic turtle shell door leaf (1), horizontally arranging the door frame (2) on the ground, and welding the hinge (3) connected to the bionic turtle shell door leaf (1) with the door frame (2).
  5. 5. The method for preparing the bionic tortoise shell protective door according to claim 4, which is characterized in that, The step S3 specifically comprises the following steps: s31, placing the pouring holes (131) on the connecting ring (13) upwards; S32, pouring the shearing thickening fluid into a filling cavity (15); s33, welding and packaging the pouring holes (131) through the packaging structure (132).
  6. 6. The method for preparing the bionic tortoise shell protective door according to claim 4, which is characterized in that, The shear thickening fluid poured in the step S3 comprises a disperse phase and a disperse medium, wherein the mass fraction of the disperse phase in the shear thickening fluid is 45-55%, The disperse phase is silica with the average particle size of 40-60 nm and zirconium dioxide with the average particle size of 40-60 nm, the mass ratio of the zirconium dioxide to the silica in the disperse phase is 1:1, The dispersion medium is polyethylene glycol with the average molecular weight of 380-420 g/mol.
  7. 7. The method for preparing the bionic tortoise shell protective door according to claim 4, which is characterized in that, And (3) carrying out galvanization surface treatment on the door frame (2) prepared in the step (S1) and/or the bionic tortoise shell door leaf (1) prepared in the step (S2).

Description

Bionic tortoise shell protective door and preparation method thereof Technical Field The invention relates to the technical field of safety protection engineering, in particular to a bionic turtle shell protective door. In addition, the invention also relates to a preparation method of the bionic tortoise shell protective door. Background The protection door is used as the most important protection equipment of the opening, and has a decisive effect on guaranteeing the overall safety of personnel and equipment in engineering. The requirements for the protective performance of the protective door are also increasing according to the rapid development of modern technology. Therefore, the development of the protective door structure with high protective performance and high efficiency has important significance for exerting the protective engineering effect to the maximum extent and reducing the integral loss of equipment. The existing protective door mainly comprises a reinforced concrete structure and a steel structure, is mainly divided into a flat plate door or a cambered arched door, and is required to be increased in thickness to improve the protection level of the protective door in some important places with higher impact resistance level requirements. If the flat plate door structure is adopted, the weight of the civil air defense door can be increased, the opening and closing difficulty of the protective door can be increased, the thickness of the door leaf can be increased, the transportation cost can be increased, and the manufacturing and production process of the protective door can be provided with higher requirements, so that the production cost is increased. While the cambered arched door can meet the use requirements in most cases, the cambered arched door is difficult to dissipate the explosion shock wave and cannot meet the requirements in specific cases, such as when the explosion shock wave is handled. Disclosure of Invention The invention provides a bionic turtle shell protective door and a preparation method thereof, which are used for solving the technical problems that the existing protective door has large dead weight of a door leaf and large opening and closing difficulty, and is difficult to block explosion shock waves. According to one aspect of the invention, a bionic tortoise shell protective door is provided, which comprises a bionic tortoise shell door leaf, a door frame and hinge leaves for connecting the bionic tortoise shell door leaf and the door frame, wherein the bionic tortoise shell door leaf comprises an outer spherical shell panel for connecting the hinge leaves, an inner spherical shell panel concentrically arranged with the outer spherical shell panel, a connecting ring for connecting the outer spherical shell panel and the inner spherical shell panel and a bionic tortoise shell sandwich plate arranged between the outer spherical shell panel and the inner spherical shell panel, the outer spherical shell panel, the inner spherical shell panel and the connecting ring enclose a cavity, the bionic tortoise shell sandwich plate divides the cavity into a plurality of filling cavities, a buffer energy absorbing layer is arranged in the filling cavities, and a filling hole and a packaging structure for sealing the filling hole are arranged on the connecting ring. Further, the bionic tortoise shell sandwich plate comprises a regular polygon frame and a connecting plate for connecting the vertex of the regular polygon frame with the connecting ring, and the projection of the connecting plate on the radial plane of the connecting ring is distributed along the radial direction of the connecting ring. Further, the regular polygon frame comprises a center frame and a peripheral frame closely arranged around the center frame, and the top points of the peripheral frame are connected with the connecting rings through the connecting plates. Further, an angle support piece is arranged at the connecting end of the connecting plate and the connecting ring. Further, the door frame comprises a frame plate for connecting a wall body and a vertical plate supported by the frame plate, and the vertical plate is provided with a door opening matched with the bionic tortoise shell door leaf. Further, through holes for communicating two adjacent filling cavities are formed in the bionic tortoise shell sandwich plate. According to another aspect of the present invention, there is also provided a method for preparing a bionic tortoise shell protective door, for preparing the above bionic tortoise shell protective door, comprising the steps of: s1, preparing a door frame, namely obtaining a frame plate and a vertical plate by punching steel materials and flame cutting, welding two adjacent frame plates, and welding the frame plate and the vertical plate; S2, preparing a bionic turtle shell door leaf, namely punching and bending steel materials to obtain an outer spherical shell panel and an inner s