Fabricated protective airtight door

Abstract

An assembly type protective air-tight door comprises an anchoring system which comprises an anchoring unit; the door frame system is of an assembly type structure and comprises an outer side face vertical edge unit capable of being fixedly assembled to the anchoring unit, an outer side face top cross beam connected with the top of the outer side face vertical edge unit, and an outer side face bottom cross beam connected with the bottom of the outer side face vertical edge unit; the door shaft system at least comprises a door shaft; and the door leaf system comprises two door leaf units. The door frame system is of an assembly type structure, all structural parts forming the door frame system are metal die castings, the structural strength of all the structural parts of the door frame system can be guaranteed, the purpose of improving the overall structural strength of the door frame system is achieved, and all the structural parts can be fixedly connected through bolts and the like to form the assembly type structure. The assembly type structure is adopted, the process difficulty of installation of the protective air-tight door on an engineering opening can be simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to protective equipment, and more specifically, to an assembled protective closed door. Background Art

[0002] Protective equipment is usually installed at the entrance of the project and is an important part of the overall protection system of the protective project. Protective equipment usually refers to protective doors, which mainly include three parts: 1. Protective door leaf; 2. Protective door frame; 3. Protective door locking system. The protective door locking system is a structure used to lock the protective door leaf on the protective door frame; the protective door leaf is hinged on the protective door frame and can be rotated to open or close. After closing, the protective door leaf can cooperate with the door frame to form a seal for the project entrance; the protective door frame is fixedly installed at the project entrance (also understood as the door frame wall) for installing the protective door leaf.

[0003] In the prior art, the protective door frame is usually fixed on the project entrance by casting. Although this fixing method can ensure the firmness of the protective door frame on the project entrance, it has certain technical defects: 1. The casting method requires partial demolition of the project entrance structure, and then the protective door frame is installed, and finally casting is performed. The construction process is difficult and the construction period is long; 2. If the protective door frame adopts a full-wrapped method (that is, wrapped on the project entrance structure), the thickness of the protective door frame needs to be designed according to the thickness of the project entrance (that is, the door frame wall), which greatly restricts the design and manufacture of the entire protective equipment (including the protective door frame, protective door leaf, locking system, etc.). Summary of the invention

[0004] 1. Technical issues

[0005] In summary, how to provide a protective device that is easy to assemble to solve the problem of difficult construction process in traditional casting methods has become an urgent problem to be solved by technical personnel in this field.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides an assembled protective airtight door. In the present invention, the assembled protective airtight door comprises:

[0009] An anchoring system, the anchoring system includes an anchoring unit, the anchoring unit includes an embedded device for embedding in the concrete structure of the engineering opening and an assembly device detachably fixedly connected to the embedded device, the assembly device includes a mounting platform, and the mounting platform is provided with mounting holes. The anchoring system is provided with a plurality of the anchoring units;

[0010] A door frame system, the door frame system is an assembled structure, the door frame system comprises an outer side vertical edge unit that can be fixedly assembled to the anchor unit, an outer side top crossbeam connected to the top of the outer side vertical edge unit, and an outer side bottom crossbeam connected to the bottom of the outer side vertical edge unit, wherein the outer side vertical edge unit, the outer side top crossbeam and the outer side bottom crossbeam form a "mouth"-shaped structure on the outer side of the engineering opening;

[0011] A door shaft system, the door shaft system at least comprising a door shaft, the door shaft being installed in the installation hole through a bearing;

[0012] The door leaf system includes two door leaf units, the two door leaf units are of a double-opening structure, the inner sides of the door leaf units are provided with connecting arms, the connecting arms are rotatably mounted on the door leaves through bearings, and the door leaf units can form a closed structure with the door frame system after being rotated closed.

[0013] Preferably, in the assembled protective airtight door provided by the present invention: the door frame system also includes an inner side vertical edge unit, the inner side vertical edge unit is fixedly connected to the outer side vertical edge unit by connecting longitudinal beams and forms a clamping structure on the concrete structure of the project opening.

[0014] Preferably, in the assembled protective closed door provided by the present invention: reinforcing anchor rods are arranged at equal intervals on the top cross beam of the outer side surface, so as to improve the firmness of the door frame system when it is installed on the concrete structure of the project entrance.

[0015] Preferably, in the assembled protective closed door provided by the present invention: reinforcing anchor rods are arranged at equal intervals on the bottom cross beam of the outer side surface, so as to improve the firmness of the door frame system when it is installed on the concrete structure of the project entrance.

[0016] Preferably, in the assembled protective airtight door provided by the present invention: an inner side top cross beam is arranged corresponding to the outer side top cross beam, the inner side top cross beam is detachably fixedly connected to the top end of the inner side vertical edge unit, and the inner side top cross beam and the outer side top cross beam form a clamping structure on the concrete structure of the project entrance; an inner side bottom cross beam is arranged corresponding to the outer side bottom cross beam, the inner side bottom cross beam is detachably fixedly connected to the bottom end of the inner side vertical edge unit, and the inner side bottom cross beam and the outer side bottom cross beam form a clamping structure on the concrete structure of the project entrance.

[0017] Preferably, in the assembled protective closed door provided by the present invention: the bottom end of the door shaft is abutted against the ground of the engineering opening through a pad, so as to transfer the weight of the door leaf unit to the ground of the engineering opening.

[0018] Preferably, in the assembled protective closed door provided by the present invention: a support plate is arranged on the door shaft, a matching plate abutting against the support plate is arranged on the inner side edge of the door leaf, and the support plate is fixedly arranged axially relative to the door shaft.

[0019] Preferably, in the assembled protective closed door provided by the present invention: a first wave pattern is arranged on the support plate, and a second wave pattern adapted to the first wave pattern is arranged on the matching plate.

[0020] Preferably, in the assembled protective airtight door provided by the present invention: the outer side vertical edge unit, the outer side top cross beam and the outer side bottom cross beam are all metal die-cast components; the outer side vertical edge unit, the outer side top cross beam and the outer side bottom cross beam are fixedly connected by bolts.

[0021] Preferably, in the assembled protective airtight door provided by the present invention: a power device is arranged on the door frame system, and the power device includes a telescopic end for power output, and the telescopic end is hinged to the inner side surface of the door leaf unit to form an inward-opening door leaf opening and closing power system.

[0022] (III) Beneficial effects

[0023] As can be seen from the above, the present invention provides an assembled protective airtight door, which comprises: an anchoring system, the anchoring system comprises an anchoring unit, the anchoring unit comprises an embedded device for embedding in the concrete structure of the engineering opening and an assembly device detachably fixedly connected to the embedded device, the assembly device comprises a mounting platform, a mounting hole is arranged on the mounting platform, and the anchoring system is provided with a plurality of anchoring units; a door frame system, the door frame system is an assembled structure, the door frame system comprises an outer side vertical edge unit which can be fixedly assembled to the anchoring unit, and an outer side top cross section connected to the top of the outer side vertical edge unit The outer side vertical edge unit, the outer side top crossbeam and the outer side bottom crossbeam form a "mouth"-shaped structure on the outer side of the project opening; the door axis system, the door axis system at least includes a door axis, and the door axis is installed in the mounting hole through a bearing; the door leaf system, the door leaf system includes two door leaf units, the two door leaf units are double-opening structures, and the inner side edges of the door leaf units are provided with connecting arms, and the connecting arms are rotatably installed on the door leaves through bearings. After the door leaf units are rotated and closed, they can form a closed structure with the door frame system. Through the above-mentioned structural design, the present invention mainly optimizes the structure of the door frame system, designs the traditional welded integral door frame into an assembled structure, and each structural member constituting the door frame system adopts metal die-castings, which can not only ensure the structural strength of each structural member of the door frame system, thereby achieving the purpose of improving the overall structural strength of the door frame system, but also each structural member can be fixedly connected by bolts and the like to form an assembled structure. Compared with the traditional welded door frame that needs to be integrally cast and fixed to the project opening, the present invention adopts an assembled structure, which can simplify the process difficulty of installing the protective sealed door on the project opening and improve the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0025] Figure 1 It is a schematic diagram of the structure of the assembled protective airtight door after it is deflected to the left in an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the assembled protective airtight door after it is deflected to the right in an embodiment of the present invention;

[0027] Figure 3 This is a front view of an assembled protective closed door in an embodiment of the present invention;

[0028] Figure 4 A top view of an assembled protective airtight door in an embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the partial structure of the assembled protective airtight door in an embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of another local structure of the assembled protective airtight door in an embodiment of the present invention.

[0031] exist Figures 1 to 6 In the figure, the corresponding relationship between the component names and the reference numerals is as follows:

[0032] Embedded device 1, assembly device 2, mounting table 3, external side vertical edge unit 4,

[0033] External side top crossbeam 5, external side bottom crossbeam 6, door axis 7, door leaf unit 8,

[0034] Inner side vertical edge unit 9, connecting longitudinal beam 10, reinforcing anchor rod 11, inner side top cross beam 12,

[0035] The inner side bottom cross beam 13, the pad 14, the support plate 15, the matching plate 16, and the power device 17. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0037] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] Please refer to Figures 1 to 6 ,in, Figure 1 It is a schematic diagram of the structure of the assembled protective airtight door after it is deflected to the left in an embodiment of the present invention; Figure 2It is a schematic diagram of the structure of the assembled protective airtight door after it is deflected to the right in an embodiment of the present invention; Figure 3 This is a front view of an assembled protective closed door in an embodiment of the present invention;

[0039] Figure 4 A top view of an assembled protective airtight door in an embodiment of the present invention; Figure 5 It is a schematic diagram of the partial structure of the assembled protective airtight door in an embodiment of the present invention; Figure 6 It is a schematic diagram of another local structure of the assembled protective airtight door in an embodiment of the present invention.

[0040] The present invention provides an assembled protective airtight door. Compared with a traditional welded door frame that needs to be integrally cast and fixed to a project opening, the present invention adopts an assembled structure, which can simplify the process difficulty of installing the protective airtight door on the project opening and improve installation efficiency.

[0041] In the present invention, the assembled protective closed door includes: 1. Anchoring system, which is fixed to the concrete structure of the project entrance (which can also be understood as the door frame wall) by anchoring. At the same time, the anchoring system also has the functions of fixing the door frame system, installing the door axis 7, and stabilizing the door leaf (keeping the door leaf and the door axis 7 from deformation and displacement after installation); 2. Door frame system, the door frame system is composed of a plurality of structural parts, and the structural parts constituting the door frame system are basically metal die-castings, so that the structural strength of these structural parts can be guaranteed, and the assembly of the door frame system can be realized by assembly; 3. Door axis system, the door axis system is used to realize the installation of the door leaf system, the door axis system has support for the door leaf, and can realize the rotation of the door leaf; 4. Door leaf system, the door leaf system includes door leaves, and the present invention adopts a double door leaf and a double-door structure, which can reduce the weight of a single door leaf while facilitating the opening of the door leaf.

[0042] Specifically, in the present invention, the anchoring system includes an anchoring unit, which is a basic unit for realizing the fixed installation of the door frame system on the concrete structure of the project mouth in the present invention. The anchoring unit includes an embedded device 1 for embedding in the concrete structure of the project mouth and an assembly device 2 that is detachably fixedly connected to the embedded device 1. The embedded device 1 includes an embedded foundation, which is a plate structure and a die-cast component. A plurality of anchor hooks of "J" type structure are provided corresponding to one embedded foundation. The anchor hook is embedded in the concrete structure of the project mouth, and the tail leaks out of the wall surface. A hole structure is provided on the embedded foundation for the tail of the anchor hook to pass through and then fasten the embedded foundation to the wall surface (concrete structure of the project mouth) by bolts. Other hole structures are also provided on the embedded foundation for the installation of the assembly device 2. The assembly device 2 includes a vertical plate and a horizontal plate, and the vertical plate is attached to the embedded foundation and fixed to the embedded foundation by bolts. A mounting groove structure is also provided between the assembly device 2 (vertical plate) and the embedded device 1 (embedded foundation), which is used for the side of the outer side vertical edge unit 4 in the door frame system to be clamped and fixed. In the assembly device 2, a plurality of reinforcing rib structures are also provided between the vertical plate and the horizontal plate. The horizontal plate serves as a mounting platform 3 (for installing the door shaft 7 and supporting the door leaf), which has a certain thickness to improve its bearing capacity. In the present invention, the embedded device 1 and the assembly device 2 are both one-piece die-castings. The assembly device 2 includes a mounting platform 3 (i.e., a horizontal plate of the assembly device 2), and a mounting hole (a circular hole with a diameter slightly larger than that of the door shaft 7) is provided on the mounting platform 3. The anchoring system is provided with a plurality of anchoring units, and at least two anchoring units are provided for one door leaf, and the anchoring units provided on the left and right are provided in a horizontally symmetrical manner.

[0043] In the present invention, the door frame system is an assembled structure, which can be understood as a door frame system assembled from a plurality of independent metal die-cast components, and the assembly method is preferably bolted. Specifically, the door frame system includes an outer side vertical edge unit 4 that can be fixedly assembled to the anchor unit (the portion of the outer side vertical edge unit 4 used for assembly with the anchor unit adopts a thickened flat plate structure, and can be inserted and clamped into the groove structure formed between the embedded foundation and the vertical plate), an outer side top crossbeam 5 connected to the top of the outer side vertical edge unit 4 (an L-shaped supporting structure is provided near the top of the outer side vertical edge unit 4, and the outer side top crossbeam 5 can be built on the supporting structure, and then fixedly connected to the outer side vertical edge unit 4 by bolts), and an outer side bottom crossbeam 6 connected to the bottom of the outer side vertical edge unit 4. The outer side vertical edge unit 4, the outer side top crossbeam 5 and the outer side bottom crossbeam 6 form a "mouth"-shaped structure on the outer side of the project opening. In the present invention, the outer side vertical edge unit 4, the outer side top cross beam 5 and the outer side bottom cross beam 6 are all L-shaped beam structures, that is, their cross sections are "L"-shaped. After the various components are assembled, they are connected by bolts. If the components cannot be bolted or are not easy to use bolts, small connecting components can be provided to achieve the connection.

[0044] Specifically, the outer side vertical edge unit 4, the outer side top cross beam 5 and the outer side bottom cross beam 6 are all metal die-cast components; the outer side vertical edge unit 4, the outer side top cross beam 5 and the outer side bottom cross beam 6 are fixedly connected by bolts.

[0045] In the above structure, the outer side vertical edge unit 4, the outer side top cross beam 5 and the outer side bottom cross beam 6 provided in the door frame system form a "wrapping mouth" structure on the outer side of the project opening. In order to improve the firmness of the door frame system on the project opening (installation reliability), the present invention also proposes the following structural optimization:

[0046] 1. The door frame system also includes an inner side vertical edge unit 9, which is fixedly connected to the outer side vertical edge unit 4 by connecting the longitudinal beam 10 and forms a clamping structure on the concrete structure of the project mouth. The inner side vertical edge unit 9 is a metal die-casting component, and the inner side vertical edge unit 9 is an integrated metal die-casting part. The inner side vertical edge unit 9 and the outer side vertical edge unit 4 form a edging structure on the concrete structure of the project mouth, and then are fixedly connected by connecting the longitudinal beam 10, so that a clamping structure can be formed on the concrete structure of the project mouth, which has a significant effect on improving the firmness of the entire door frame system installed on the project mouth.

[0047] 2. Reinforcement anchor rods 11 are arranged at equal intervals on the top cross beam 5 of the outer side surface to improve the firmness of the door frame system installed on the concrete structure of the project entrance. Also, reinforcement anchor rods 11 are arranged at equal intervals on the bottom cross beam 6 of the outer side surface to improve the firmness of the door frame system installed on the concrete structure of the project entrance. The reinforcement anchor rods 11 can be pre-buried in the concrete structure of the project entrance, and can also be an expansion bolt structure.

[0048] 3. Based on the above optimization, the present invention is provided with an inner side top cross beam 12 corresponding to the outer side top cross beam 5, and the inner side top cross beam 12 is detachably fixedly connected to the top of the inner side vertical edge unit 9, and the inner side top cross beam 12 and the outer side top cross beam 5 form a clamping structure on the engineering mouth concrete structure; an inner side bottom cross beam 13 is provided corresponding to the outer side bottom cross beam 6, and the inner side bottom cross beam 13 is detachably fixedly connected to the bottom end of the inner side vertical edge unit 9, and the inner side bottom cross beam 13 and the outer side bottom cross beam 6 form a clamping structure on the engineering mouth concrete structure. The inner side top cross beam 12 and the inner side bottom cross beam 13 are both L-shaped metal die-casting components, and the inner side top cross beam 12 and the inner side bottom cross beam 13 can be fixedly connected to the corresponding outer side top cross beam 5 and the outer side bottom cross beam 6 through the tie bars that penetrate the engineering mouth concrete structure, and can also be connected to the connecting longitudinal beam 10.

[0049] In the present invention, the door axis system at least includes a door axis 7, and the door axis 7 is installed in the mounting hole through a bearing. The door axis 7 can be an integrated shaft structure, or it can be assembled into a complete door axis 7 by two door axis units through a sleeve. The door axis 7 can be provided with a door axis boss and other structures according to the specific structural form of the mounting platform 3, the size of the mounting hole and the structure of the bearing, so as to ensure that the door axis 7 can be fixedly installed through the anchoring system. As an important improvement of the present invention, the present invention designs the bottom of the door axis 7. In the prior art, the bottom of the door axis 7 is generally suspended or installed on the door frame through a bearing. The present invention is different from the traditional structure. The present invention realizes that the bottom end of the door axis 7 is offset against the ground of the engineering opening through a pad 14, that is, the bottom of the door axis 7 is directly prevented from touching the ground of the engineering opening, so that the door axis 7 can be used as a force transmission structure, which can transfer the weight of the door leaf unit 8 to the ground of the engineering opening, thereby reducing the weighing pressure of the door frame system.

[0050] As for the door leaf system, in the present invention, the door leaf system includes two door leaf units 8, the two door leaf units 8 are double-leaf structures, the inner side of the door leaf unit 8 is provided with a connecting arm, the connecting arm is rotatably mounted on the door leaf through a bearing, and the door leaf unit 8 can form a closed structure with the door frame system after being rotated and closed. Further, a support plate 15 is provided on the door shaft 7 (for example, a boss structure is provided on the door shaft 7, and the support plate 15 can be sleeved on the door shaft 7 and then stuck on the boss structure, thereby realizing the installation of the support plate 15 on the door leaf), and a matching plate 16 that abuts against the support plate 15 is provided on the inner side of the door leaf, and the support plate 15 is fixedly arranged in the axial direction relative to the door shaft 7. Further, a first wave pattern is provided on the support plate 15, and a second wave pattern adapted to the first wave pattern is provided on the matching plate 16. By providing the two structures of the support plate 15 and the matching plate 16, the gravity of the door leaf can be transferred to the door shaft 7, and the stability of the door leaf installed on the door shaft 7 can be improved, thereby reducing or even eliminating the shaking of the door leaf.

[0051] The present invention can use manual pushing or mechanical driving to rotate the door leaf. In the mechanical driving mode, the present invention is provided with a power device 17 (electric push rod) on the door frame system. The power device 17 includes a telescopic end for power output. The telescopic end is hinged to the inner side of the door leaf unit 8 to form an inner opening door leaf opening and closing power system. The power device 17 and other structures are arranged on the inner side of the door leaf unit 8 (i.e., the back side of the door leaf) and the inner side opening or closing mode is adopted to avoid the flooding of the power device 17. In this way, no high-level waterproofing measures are required, and the purpose of cost saving is achieved to a certain extent.

[0052] In order to improve the sealing performance of the door frame system on the concrete structure of the project opening, the present invention can provide a slot structure on the side of the door frame system that contacts the concrete structure of the project opening, and a sealing strip on the slot structure. At the same time, the present invention can also provide a slot structure on the side of the door frame system that contacts the door leaf, and a sealing strip on the slot structure.

[0053] Based on the above structural design, the structural requirements of the door frame system and the door leaf system of the present invention are as follows: the door frame system adopts a steel door frame, and the door frame and the door frame wall (concrete structure of the project entrance) should have sufficient connection strength and be connected to each other as a whole. The door frame is an important supporting part of the entrance protection equipment of the civil air defense project. The anchoring bar is used to connect the door frame and the door frame wall. The door frame anchoring bar is set according to the structural requirements, which can accurately locate the door frame position and ensure the airtight protection between the door frame and the door frame wall. In addition, it is necessary to set a door leaf sealing strip to ensure the airtight protection between the door leaf and the steel door frame, and at the same time set a door frame sealing strip to ensure the airtight protection between the door frame and the door frame wall. Under the negative pressure of the shock wave, the door frame should have sufficient connection strength. In the anchoring system, the length of the anchoring steel bar should not be less than 30 times the diameter of the steel bar, the diameter of the steel bar should not be less than φ12, the length of the hook section should be greater than 150mm, the interval between the anchoring steel bars should not be greater than 400mm, and the joint surface between the door frame and the door frame wall should also be made into an inclined surface.

[0054] For steel door frames, anchor steel bars should be welded at the lock and hinge. The length of the anchor steel bars should not be less than 30 times the diameter, and the steel bar area should meet the following formula: A s =P z / f. In the formula, A s is the cross-sectional area of ​​the steel bar, f is the design value of the tensile strength of the steel bar, P z It is the total suction force on the door leaf unit.

[0055] To prevent the door frame from being separated from the door frame wall under the negative pressure of the shock wave, thus causing damage to the door leaf. Under the suction of the shock wave, the door leaf generates tension on the door frame through the hinges and locks, so anchor steel bars should be welded at the locks and hinges, and the length of the anchor steel bars should be equal to 30 times the diameter. Anchor steel bars should also be welded to the rest of the door frame, and the number is determined by the structure. The area of ​​anchor steel bars at the locks and hinges can be calculated as follows: Where Ag is the anchor steel area, Rg is the design value of the tensile strength of the steel bar, and p 吸 总 is the total suction force on the door leaf, k is the strength safety factor, and k can be taken as 1.2.

[0056] As can be seen from the above, the present invention provides an assembled protective airtight door, which comprises: an anchoring system, the anchoring system comprises an anchoring unit, the anchoring unit comprises an embedded device 1 for embedding in the concrete structure of the engineering opening and an assembly device 2 detachably fixedly connected to the embedded device 1, the assembly device 2 comprises a mounting platform 3, and a mounting hole is arranged on the mounting platform 3, and the anchoring system is provided with a plurality of anchoring units; a door frame system, the door frame system is an assembled structure, and the door frame system comprises an outer side vertical edge unit 4 that can be fixedly assembled to the anchoring unit, and an outer side top crossbeam 5 connected to the top of the outer side vertical edge unit 4 , and an outer side bottom crossbeam 6 connected to the bottom of the outer side vertical edge unit 4, a "mouth"-shaped structure is formed on the outer side of the project opening by the outer side vertical edge unit 4, the outer side top crossbeam 5 and the outer side bottom crossbeam 6; a door axis system, the door axis system at least includes a door axis 7, and the door axis 7 is installed in the mounting hole through a bearing; a door leaf system, the door leaf system includes two door leaf units 8, the two door leaf units 8 are double-opening structures, and the inner side edges of the door leaf units 8 are provided with connecting arms, which are rotatably installed on the door leaf through bearings, and the door leaf units 8 can form a closed structure with the door frame system after being rotated and closed.

[0057] Through the above-mentioned structural design, the present invention mainly optimizes the structure of the door frame system, designs the traditional welded integral door frame into an assembled structure, and each structural member constituting the door frame system adopts metal die-castings, which can not only ensure the structural strength of each structural member of the door frame system, thereby achieving the purpose of improving the overall structural strength of the door frame system, but also each structural member can be fixedly connected by bolts and the like to form an assembled structure. Compared with the traditional welded door frame that needs to be integrally cast and fixed to the project opening, the present invention adopts an assembled structure, which can simplify the process difficulty of installing the protective sealed door on the project opening and improve the installation efficiency.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembled protective closed door, characterized in that: include: An anchoring system, the anchoring system comprising an anchoring unit, the anchoring unit comprising an embedded device (1) for embedding in a concrete structure at the mouth of a project and an assembly device (2) detachably fixedly connected to the embedded device, the assembly device comprising a mounting platform (3), the mounting platform being provided with mounting holes, the anchoring system being provided with a plurality of the anchoring units; A door frame system, the door frame system is an assembled structure, the door frame system comprises an outer side vertical edge unit (4) that can be fixedly assembled to the anchor unit, an outer side top crossbeam (5) connected to the top of the outer side vertical edge unit, and an outer side bottom crossbeam (6) connected to the bottom of the outer side vertical edge unit, wherein the outer side vertical edge unit, the outer side top crossbeam and the outer side bottom crossbeam form a "mouth"-shaped structure on the outer side of the project opening; A door shaft system, the door shaft system at least comprising a door shaft (7), the door shaft being installed in the installation hole via a bearing; A door leaf system, the door leaf system comprising two door leaf units (8), the two door leaf units being of a double-opening structure, the inner side edges of the door leaf units being provided with connecting arms, the connecting arms being rotatably mounted on the door leaves via bearings, the door leaf units being able to form a closed structure with the door frame system after being rotated closed.

2. The assembled protective airtight door according to claim 1, characterized in that: The door frame system also includes an inner side vertical edge unit (9), which is fixedly connected to the outer side vertical edge unit through a connecting longitudinal beam (10) and forms a clamping structure on the concrete structure of the project opening.

3. The assembled protective airtight door according to claim 2, characterized in that: Reinforcement anchor rods (11) are arranged at equal intervals on the top cross beam of the outer side surface, so as to improve the firmness of the door frame system when it is arranged on the concrete structure of the project opening.

4. The assembled protective airtight door according to claim 3, characterized in that: Reinforcement anchor rods are arranged at equal intervals on the bottom cross beam of the outer side surface, so as to improve the firmness of the door frame system when it is arranged on the concrete structure of the project opening.

5. The assembled protective airtight door according to claim 4, characterized in that: An inner side top cross beam (12) is provided corresponding to the outer side top cross beam, the inner side top cross beam is detachably fixedly connected to the top end of the inner side vertical edge unit, and the inner side top cross beam and the outer side top cross beam form a clamping structure on the concrete structure of the project mouth; An inner side bottom cross beam (13) is provided corresponding to the outer side bottom cross beam, the inner side bottom cross beam is detachably fixedly connected to the bottom end of the inner side vertical edge unit, and the inner side bottom cross beam and the outer side bottom cross beam form a clamping structure on the concrete structure of the project mouth.

6. The assembled protective airtight door according to claim 1, characterized in that: The bottom end of the door shaft is butted against the ground of the engineering opening through a pad (14), so as to transfer the weight of the door leaf unit to the ground of the engineering opening.

7. The assembled protective airtight door according to claim 1, characterized in that: A support plate (15) is arranged on the door shaft, and a matching plate (16) abutting against the support plate is arranged on the inner side edge of the door leaf. The support plate is fixedly arranged in the axial direction relative to the door shaft.

8. The assembled protective airtight door according to claim 7, characterized in that: A first wave pattern is arranged on the support plate, and a second wave pattern adapted to the first wave pattern is arranged on the matching plate.

9. The assembled protective airtight door according to claim 1, characterized in that: The outer side vertical edge unit, the outer side top cross beam and the outer side bottom cross beam are all metal die-casting components; The outer side vertical edge unit, the outer side top cross beam and the outer side bottom cross beam are fixedly connected by bolts.

10. The assembled protective airtight door according to any one of claims 1 to 9, characterized in that: A power device (17) is arranged on the door frame system, and the power device comprises a telescopic end for power output, and the telescopic end is hinged to the inner side surface of the door leaf unit to form an inward-opening door leaf opening and closing power system.

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