A modular composite door leaf for civil air defense equipment

Abstract

The present invention relates to a composite material door leaf for civil air defense protection equipment that can be spliced ​​and modularized. The composite material door leaf for civil air defense protection equipment is spliced ​​by at least two door leaf modules, including a middle door leaf module and door leaf modules on both sides. Each door leaf module is mainly composed of a door leaf matrix, an embedded pressure plate, and a pre-embedded insert. The embedded pressure plate is pre-embedded in the door leaf for realizing the sealing between the door leaf and the door frame. The pre-embedded insert is made of a hexagonal nut and is pre-embedded in the door leaf for fixing the equipment lock and the equipment hinge. The door leaf is provided with a cavity. The side edges of each door leaf module are provided with bolt holes and cylindrical pin holes. The cavity parts of the side edges of each spliced ​​door leaf module are connected by hexagonal head hinge bolts, and the joints are filled with structural glue. The solid parts of the side edges of each spliced ​​module are connected by cylindrical pins, and the joints are filled with structural glue. The hexagonal head hinge bolts and cylindrical pins are respectively arranged in the bolt holes and cylindrical pin holes. It solves the problem that large-sized door leaves cannot be manufactured.

Description

Technical Field

[0001] The present invention relates to a splicable and modular composite material door leaf for civil air defense protection equipment, which can effectively solve the production and processing problems of large-size composite material door leaves for protection equipment on the basis of ensuring structural strength, and reduce mold manufacturing costs, belonging to the field of civil air defense engineering protection equipment. Background Art

[0002] Civil air defense protection equipment is a type of special equipment installed at the entrance of civil air defense projects. It usually has functions such as explosion protection, nuclear radiation protection, and chemical gas protection. It is an important guarantee for civil air defense projects to resist weapon attacks and give full play to their protective effectiveness during wartime. Protection equipment is usually composed of door leaves, door frames, locks, hinges and other components.

[0003] As the main component that bears the shock wave load, the door leaves of protective equipment usually have to meet the requirements of reliable strength, durability, and strong weather resistance. Existing protective equipment door leaves are mostly made of reinforced concrete or steel, which have the advantages of simple structure and reliable strength. However, due to the high density and weak corrosion resistance of the above materials, reinforced concrete and steel structure protective equipment have defects such as bulky door leaves and poor weather resistance, which brings certain difficulties to the transportation, installation, operation and maintenance of protective equipment. Therefore, in order to improve equipment performance and reduce the weight of door leaves, researchers have developed a composite material door leaf for civil air defense protective equipment made of resin-based composite materials, which effectively solves the problems existing in existing protective equipment and has been widely used and promoted.

[0004] Resin-based composite materials refer to a new type of material prepared by a composite process using organic polymer materials as the matrix and high-performance continuous fibers as the reinforcement. Currently, the resin-based composite materials that have been used in the field of civil air defense equipment mainly include glass fiber reinforced composite materials, basalt fiber reinforced composite materials and carbon fiber reinforced composite materials.

[0005] The processing and forming technology of composite door leaves is the key to determining whether the door leaves meet the material strength and design requirements. The main forming technologies currently used include: autoclave forming, winding forming, manual / automatic laying forming, vacuum injection molding and compression molding. Among them: the autoclave forming technology is complex, has high requirements for the autoclave system, and has a large cost investment, so it has not yet been used in the manufacture of protective equipment door leaves; winding forming is mostly used to manufacture composite pipe fittings, which is not suitable for the production of protective equipment door leaves; vacuum injection molding and manual / automatic laying molding products have low strength and cannot meet the resistance requirements of protective equipment, and have low production efficiency and unstable product quality, which are not suitable for large-scale batch production. In contrast, compression molding technology has high product strength, stable finished product quality, and high production efficiency, so it is most suitable for manufacturing and processing protective equipment door leaves.

[0006] Compression molding technology refers to the technology of placing a certain amount of molding material into a metal die, and solidifying the material after a period of time under the action of a press (maintaining a certain temperature and pressure). The mold is a key factor in determining the quality of compression molding products. On the one hand, due to the size constraints of the mold manufacturing platform (i.e., the CNC milling machine table), the mold size is generally limited to 3M*3M; on the other hand, the mold manufacturing process is complicated, the manufacturing cycle is long and the cost is extremely high. Civil defense protection equipment usually has multiple size series, and the door leaf size range is widely distributed (for example, the length of a single door leaf of most double-leaf protection equipment is ≥3M). If the modular design of the door leaf is not considered, the manufacturing cost will inevitably increase, which is not conducive to the promotion and application of composite material protection equipment. Summary of the invention

[0007] In order to solve the problem of high processing cost and long manufacturing cycle of large-sized and serialized composite material protective equipment door leaves, the present invention proposes a splicable and modular composite material civil air defense protective equipment door leaf. On the basis of ensuring strength, it can realize the manufacturing and production of composite material protective equipment of different sizes and different size series by relying on only a few molds, which greatly reduces the production cost and has high economic benefits, combat readiness benefits and promotion and application value.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A splicable and modular composite door leaf for civil air defense protection equipment, wherein the composite door leaf for civil air defense protection equipment is spliced ​​together by at least two door leaf modules, including a middle door leaf module and door leaf modules on both sides, each door leaf module is mainly composed of a door leaf base, an embedded pressure plate, and an embedded insert, wherein the embedded pressure plate is embedded in the door leaf for achieving sealing between the door leaf and the door frame, and the embedded insert is made of a hexagonal nut, embedded in the door leaf for fixing the equipment lock and the equipment hinge; a cavity is provided on the door leaf; bolt holes and cylindrical pin holes are provided on the side edges of each door leaf module, the cavity parts of the side edges of each spliced ​​door leaf module are connected by hexagonal hinged bolts, and the joints are filled with structural adhesive; the solid parts of the side edges of each spliced ​​module are connected by cylindrical pins, and the joints are filled with structural adhesive; the hexagonal hinged bolts and cylindrical pins are respectively arranged in the bolt holes and the cylindrical pin holes.

[0010] Furthermore, the embedded pressure plates in the door leaf modules on both sides include arc-shaped embedded pressure plates and vertical embedded pressure plates.

[0011] Furthermore, a hexagonal locking nut is threadedly connected to the end of the hexagonal head hinged bolt, and a connecting sleeve is sleeved on the outer side. A pad is also arranged between the hexagonal head hinged bolt, the hexagonal locking nut and the connecting sleeve.

[0012] Furthermore, the bolt holes on the door leaf are arranged in a staggered and spaced manner, with a minimum bolt hole spacing ≥75mm; and a minimum cylindrical pin spacing ≥85mm.

[0013] Furthermore, the embedded inserts, embedded pressure plates and cavities on the door leaf are all symmetrically arranged.

[0014] Furthermore, to facilitate demoulding, the draft angle of the cavity is 1°.

[0015] Furthermore, the panel of the door leaf needs to be molded separately and fixed to the inner side of the door leaf by structural adhesive after the splicing is completed.

[0016] Furthermore, the composite material in the composite material civil air defense protection equipment door leaf is an SMC composite material.

[0017] Furthermore, the dimensions of the middle door leaf module are: 1000mm×1500mm×100mm, and the dimensions of the door leaf modules on both sides are: 1500mm×1500mm×100mm.

[0018] Furthermore, the composite material civil air defense protection equipment door leaf is formed by splicing two door leaf modules, including a middle door leaf module and two side door leaf modules, or the composite material civil air defense protection equipment door leaf is formed by splicing three door leaf modules.

[0019] Compared with the prior art, the present invention has the following technical effects:

[0020] The modular splicing technology involved in the present invention can realize the production of equipment door leaves. On the basis of ensuring the strength of the equipment, it not only solves the technical problem that large-sized composite material protective equipment door leaves cannot be manufactured, but also effectively reduces the production cost and improves the production efficiency. Therefore, the present invention has extremely high promotion value and important application significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall splicing of a splicable, modular composite material door leaf of a civil air defense protection equipment of the present invention;

[0022] Figure 2 yes Figure 1 Front view;

[0023] Figure 3 yes Figure 1 Side view;

[0024] Figure 4 It is a schematic diagram of the middle door leaf module;

[0025] Figure 5 yes Figure 4 Front view;

[0026] Figure 6yes Figure 4 Side view;

[0027] Figure 7 It is a schematic diagram of the door leaf modules on both sides;

[0028] Figure 8 yes Figure 7 Front view;

[0029] Fig. 9 yes Figure 7 Side view;

[0030] Fig.10 It is a schematic diagram of the splicing of the cavity part;

[0031] Fig.11 This is a schematic diagram of the splicing of solid parts. DETAILED DESCRIPTION

[0032] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] like Figure 1-11As shown, a composite door leaf of civil air defense equipment of the present invention can be spliced ​​and modularized. The composite door leaf of civil air defense equipment is spliced ​​by two modules. The composite material in the door leaf is SMC composite material, which includes a middle door leaf module 1 and two side door leaf modules 2. The size of the middle door leaf module 1 is: 1000mm×1500mm×100mm, and the size of the two side door leaf modules 2 is: 1500mm×1500mm×100mm. Each door leaf module is mainly composed of a door leaf matrix 3, an embedded pressure plate 4, and a pre-embedded insert 5. The embedded pressure plate 4 is embedded in the door leaf to achieve the sealing between the door leaf and the door frame. The embedded pressure plate 4 in the door leaf modules 2 on both sides includes an arc embedded pressure plate 41 and a vertical embedded pressure plate 42. It is realized by mold inserts. Different inserts can be replaced according to needs in the actual production process, such as replacing them with rubber strip groove embedded parts inserts, so as to realize the conversion between different module production types. The embedded insert 5 is made of a hexagonal nut, embedded in the door leaf, and used to fix the equipment lock and the equipment hinge. The door leaf is provided with a cavity 6. To facilitate demoulding, the draft angle of the cavity 6 is 1°. Bolt holes 7 and cylindrical pin holes 8 are provided on the side edges of each door leaf module. The cavity parts of the side edges of each spliced ​​door leaf module are connected by hexagonal head hinged bolts 9, and the joints are filled with structural adhesive 10. The solid parts of the side edges of each spliced ​​module are connected by cylindrical pins 11, and the joints are filled with structural adhesive 10. The hexagonal head hinged bolts 9 and the cylindrical pins 11 are respectively arranged in the bolt holes 7 and the cylindrical pin holes 8. The hexagonal head hinged bolts 9 play the role of module connection and leveling. The end of the hexagonal hinged bolts 9 is threaded with a hexagonal locking nut 12, and a connecting sleeve 13 is sleeved on the outside. A pad 14 is also provided between the hexagonal hinged bolts 9 and the hexagonal locking nut 12 and the connecting sleeve 13 to prevent the hexagonal hinged bolts from directly contacting the surface of the door leaf and causing damage to the SMC material. Considering that too small bolt spacing will affect the filling effect of SMC material, the bolt holes 7 on the door leaf are staggered and spaced, and the minimum bolt hole 7 spacing is ≥75mm. The minimum cylindrical pin 11 spacing is ≥85mm. Among them, the specific position and size of the cavity 6 are related to the position of the embedded parts and are determined by calculation. The embedded inserts 5, the embedded pressure plate 4 and the cavity 6 on the door leaf are all arranged symmetrically. The panel 15 of the door leaf needs to be molded separately and fixed to the inner side of the door leaf by structural adhesive after the splicing is completed.

[0035] Example 2

[0036] A composite material door leaf for civil air defense protection equipment that can be spliced ​​and modularized. The composite material door leaf for civil air defense protection equipment is spliced ​​together by three door leaf modules, and the other structures are the same as those in Example 1.

[0037] The above embodiments are merely enumerated to more clearly illustrate the technical solutions of the present invention, and are not limitations of the present invention. Any modifications to the technical solutions of the present application made by ordinary technicians in the field based on the common knowledge in the field are also within the protection scope of the present application. In short, the above embodiments are merely enumerated, and the protection scope of the present application shall be based on the scope of the attached claims.

Claims

1. A modular composite door leaf for civil air defense equipment, characterized in that: The composite material door leaf of the civil air defense protection equipment is formed by splicing at least two door leaf modules, each of which is mainly composed of a door leaf matrix (3), an embedded pressure plate (4), and a pre-embedded insert (5). The embedded pressure plate (4) is pre-embedded in the door leaf to achieve sealing between the door leaf and the door frame. The pre-embedded insert (5) is made of a hexagonal nut and is pre-embedded in the door leaf to fix the equipment lock and the equipment hinge. A cavity (6) is provided on the door leaf. A bolt hole (7) and a cylindrical pin hole (8) are provided on the side edge of each door leaf module. The cavity parts of the side edges of each spliced ​​door leaf module are connected by a hexagonal hinge bolt (9), and the joints are filled with structural glue (10). The solid parts of the side edges of each spliced ​​module are connected by a cylindrical pin (11), and the joints are filled with structural glue (10). The hexagonal hinge bolt (9) and the cylindrical pin (11) are respectively arranged in the bolt hole (7) and the cylindrical pin hole (8). The embedded pressure plates (4) in the door leaf modules (2) on both sides include arc-shaped embedded pressure plates (41) and vertical embedded pressure plates (42); The end of the hexagonal hinged bolt (9) is threadedly connected with a hexagonal locking nut (12), and a connecting sleeve (13) is sleeved on the outside. A pad (14) is also arranged between the hexagonal hinged bolt (9), the hexagonal locking nut (12) and the connecting sleeve (13); The bolt holes (7) on the door leaf are arranged in a staggered and spaced manner, and the minimum bolt hole (7) spacing is ≥75mm; the minimum cylindrical pin (11) spacing is ≥85mm; the embedded inserts (5), the embedded pressure plate (4) and the cavity (6) on the door leaf are all arranged symmetrically; to facilitate demoulding, the draft angle of the cavity (6) is 1°; the panel (15) of the door leaf needs to be molded separately, and after splicing is completed, it is fixed to the inner side of the door leaf by structural adhesive; the composite material in the composite material civil air defense protection equipment door leaf is SMC composite material; the size of the middle door leaf module (1) is: 1000mm×1500mm×100mm, and the size of the two side door leaf modules (2) is: 1500mm×1500mm×100mm; the composite material civil air defense protection equipment door leaf is spliced ​​by two door leaf modules, including the middle door leaf module (1) and the two side door leaf modules (2), or the composite material civil air defense protection equipment door leaf is spliced ​​by three door leaf modules.

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