Reinforced concrete security door

Abstract

This utility model discloses a reinforced concrete protective airtight door, including a door panel. A reinforcing frame is internally fixed to the door panel. Fixing grooves are provided on both sides of the door panel, and the door panel is fixed to both ends of the reinforcing frame via these grooves. A fixing slot and pre-drilled grouting holes are provided on the upper surface of the door panel. Longitudinal and transverse reinforcing bars are provided inside the reinforcing frame. A cross-shaped support plate is installed on the rear surface of the door panel. This utility model achieves quick and easy assembly and a tight, stable connection by quickly snapping the door panel and reinforcing frame together. Simultaneously, the internal reinforcing frame is reinforced with braided steel bars, and concrete can be quickly injected into the reinforcing frame using the pre-drilled grouting holes, forming a solid structure with the reinforcing bar skeleton. This effectively improves the structural strength of the protective airtight door and provides excellent safety protection.

Description

Technical Field

[0001] This utility model relates to the field of protective airtight doors, specifically a reinforced concrete protective airtight door. Background Technology

[0002] Airtight doors are used in passageways leading from the main substation and main drainage pump room to the bottom parking area. They are easy to close to prevent sudden water intrusion. They serve two functions: blocking shock waves and isolating toxic agents. Protective airtight doors should be able to block shock waves and meet corresponding resistance requirements. When selecting doors, not only should the opening size be considered, but also the design pressure requirements. Although steel structure doors are more expensive and have poorer protection against early nuclear radiation, their light weight and flexible opening and closing make them commonly used for relatively large vehicle entrances and exits.

[0003] Chinese patent document CN211974782U discloses a reinforced concrete protective airtight door, comprising a mounting base, a locking rod, an electric telescopic rod I, a fixed base, a hinge I, an electric telescopic rod II, a hinge II, and a hinge leaf. The airtight door body is internally fitted with a fixed base, and the electric telescopic rod I is installed inside the fixed base. A locking rod is mounted on the upper end of the electric telescopic rod I. The mounting base is internally fitted with a mounting base. The front end of the airtight door body is fitted with hinge I. The right side of hinge I is fitted with electric telescopic rod II. The right side of electric telescopic rod II is fitted with hinge II. The rear end of the airtight door body is fitted with a hinge leaf. This design solves the problem of the original reinforced concrete protective airtight door being too heavy and inconvenient to rotate, open, and lock. This utility model has a reasonable structure, facilitating the opening and rotation of the reinforced concrete protective airtight door.

[0004] The existing reinforced concrete protective airtight doors are inconvenient to cast concrete inside the door, and the overall structural strength of the airtight doors is poor, lacking good safety support and protection. Therefore, it is necessary to develop a new type of reinforced concrete protective airtight door. Utility Model Content

[0005] The purpose of this utility model is to provide a reinforced concrete protective airtight door to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced concrete protective airtight door, comprising a door panel, a reinforcing frame being snapped and fixed inside the door panel, fixing slots being provided on both sides of the door panel, the door panel being snapped and fixed to both ends of the reinforcing frame through the fixing slots, fixing slots and reserved grouting holes being provided on the upper surface of the door panel, support bars being installed inside the reinforcing frame, the support bars being correspondingly inserted and fixed to the fixing slots, longitudinal reinforcing bars and transverse reinforcing bars being provided inside the reinforcing frame, and a cross support plate being installed on the rear end surface of the door panel.

[0007] Preferably, reinforcing beams are installed at both ends of the cross support plate, and the side surfaces of the reinforcing beams are fixedly connected to the cross support plate by limiting blocks.

[0008] Preferably, the bottom of the reinforced beam is equipped with triangular support bars.

[0009] Preferably, the surface of the support bar is equipped with a plurality of reinforcing bolts, and the support bar is reinforcedly connected to the cross support plate by the reinforcing bolts.

[0010] Preferably, the reserved grouting hole is used to inject concrete into the interior of the reinforced frame.

[0011] Preferably, multiple longitudinal and transverse reinforcing bars are provided, and the longitudinal and transverse reinforcing bars are interwoven and fixed inside the reinforcing frame.

[0012] Preferably, a door handle is provided on the front surface of the door panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model achieves convenient assembly and a tight, stable connection by quickly snapping together the door panel and the reinforcing frame. At the same time, the internal reinforcement frame is reinforced with braided steel bars, and concrete can be quickly injected into the interior of the reinforcing frame using pre-reserved grouting holes, and cast together with the steel bar skeleton, thereby effectively improving the structural strength of the protective airtight door and providing good safety protection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0017] Figure 3 This is an exploded structural diagram of the present invention.

[0018] In the diagram: 1. Door handle; 2. Reinforced frame; 3. Door panel; 4. Triangular support bar; 5. Limiting block; 6. Reinforced beam; 7. Cross support plate; 8. Fixing slot; 9. Fixing groove; 10. Reserved grouting hole; 11. Horizontal steel bar; 12. Longitudinal steel bar; 13. Reinforcing bolt; 14. Support bar. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figure 1-3 An embodiment of this utility model provides: a reinforced concrete protective airtight door, including a door panel 3, a reinforcing frame 2 fixedly attached inside the door panel 3, fixing slots 9 on both sides of the door panel 3, the door panel 3 being fixedly attached to both ends of the reinforcing frame 2 through the fixing slots 9, fixing slots 8 and reserved grouting holes 10 respectively on the upper surface of the door panel 3, support bars 14 installed inside the reinforcing frame 2, the support bars 14 being correspondingly inserted and fixed to the fixing slots 8, longitudinal steel bars 12 and transverse steel bars 11 respectively provided inside the reinforcing frame 2, and a cross support plate 7 installed on the rear surface of the door panel 3.

[0021] Furthermore, reinforcing beams 6 are installed at both ends of the cross support plate 7. The side surfaces of the reinforcing beams 6 are fixedly connected to the cross support plate 7 via limiting blocks 5. Triangular support ribs 4 are installed at the bottom of the reinforcing beams 6. By setting up the reinforcing beam structure, the supporting and protective effect of the reinforcing beams 6 can be further improved by using the limiting blocks 5 and the triangular support ribs 4, and the cross support plate 7 and the reinforcing beams 6 can be reinforced and stabilized.

[0022] Furthermore, multiple reinforcing bolts 13 are installed on the surface of the support bar 14. The support bar 14 is reinforced and connected to the cross support plate 7 through the reinforcing bolts 13, thereby improving the tightness and stability of the connection between the support bar 14 and the cross support plate 7.

[0023] Furthermore, the reserved grouting hole 10 is used to inject concrete into the interior of the reinforced frame 2, which has the advantage of convenient grouting control. It can be used to quickly inject concrete into the interior of the reinforced frame 2 and cast it into an integral structure with the longitudinal steel bar 12 and the transverse steel bar 11 to reinforce and protect the entire door.

[0024] Furthermore, multiple longitudinal steel bars 12 and transverse steel bars 11 are provided, and the longitudinal steel bars 12 and transverse steel bars 11 are interwoven and fixed inside the reinforcing frame 2, which can be used to improve the structural strength inside the door.

[0025] Furthermore, a door handle 1 is provided on the front surface of the door panel 3 to facilitate opening and closing the door.

[0026] Working principle: During use, a reinforcing frame 2 is snapped into and fixed inside the door panel 3. Fixing slots 9 are provided on both sides of the door panel 3, allowing the door panel 3 to be snapped into and fixed to both ends of the reinforcing frame 2 via these slots. A fixing slot 8 and a pre-drilled grouting hole 10 are respectively provided on the upper surface of the door panel 3. Support bars 14 are installed inside the reinforcing frame 2, and the support bars 14 are correspondingly inserted and fixed to the fixing slots 8. This allows for quick snap-fit ​​alignment and installation between the door panel 3 and the reinforcing frame 2, offering advantages such as convenient assembly and tight, stable connection. Longitudinal reinforcing bars 12 and transverse reinforcing bars 11 are interwoven and fixed inside the reinforcing frame 2, which can be used to improve the structural strength of the door. The pre-drilled grouting hole 10 is used for... The concrete is injected into the interior of the reinforced frame 2, which has the advantage of convenient grouting control. It can be used to quickly inject concrete into the interior of the reinforced frame 2 and cast it into an integral structure with the longitudinal steel bars 12 and the transverse steel bars 11 to reinforce and protect the entire door. A cross support plate 7 is installed on the rear surface of the door panel 3. Reinforced beam plates 6 are installed at both ends of the cross support plate 7. The side surface of the reinforced beam plate 6 is fixedly connected to the cross support plate 7 by the limiting block 5. A triangular support bar 4 is installed at the bottom of the reinforced beam plate 6. By setting the reinforced beam plate 6 structure, the supporting and protective effect of the reinforced beam plate 6 can be further improved by using the limiting block 5 and the triangular support bar 4, and the cross support plate 7 and the reinforced beam plate 6 can be reinforced and stabilized.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced concrete protective airtight door, comprising a door panel (3), characterized in that, The door panel (3) is internally fixed with a reinforcing frame (2). The two sides of the door panel (3) are provided with fixing slots (9). The door panel (3) is fixed to both ends of the reinforcing frame (2) through the fixing slots (9). The upper surface of the door panel (3) is provided with fixing slots (8) and reserved grouting holes (10). The reinforcing frame (2) is internally installed with support bars (14). The support bars (14) are correspondingly inserted and fixed with the fixing slots (8). The reinforcing frame (2) is internally provided with longitudinal steel bars (12) and transverse steel bars (11). The rear end surface of the door panel (3) is provided with a cross support plate (7).

2. The reinforced concrete protective airtight door according to claim 1, characterized in that: The cross support plate (7) is equipped with reinforcing beams (6) at both ends, and the side surfaces of the reinforcing beams (6) are fixedly connected to the cross support plate (7) by limiting blocks (5).

3. A reinforced concrete protective airtight door according to claim 2, characterized in that: The bottom of the reinforced beam (6) is equipped with triangular support bars (4).

4. A reinforced concrete protective airtight door according to claim 1, characterized in that: The surface of the support bar (14) is equipped with a plurality of reinforcing bolts (13), and the support bar (14) is reinforcedly connected to the cross support plate (7) by the reinforcing bolts (13).

5. A reinforced concrete protective airtight door according to claim 1, characterized in that: The reserved grouting hole (10) is used to inject concrete into the interior of the reinforced frame (2).

6. A reinforced concrete protective airtight door according to claim 1, characterized in that: Multiple longitudinal steel bars (12) and transverse steel bars (11) are provided, and the longitudinal steel bars (12) and transverse steel bars (11) are interwoven and fixed inside the reinforcing frame (2).

7. A reinforced concrete protective airtight door according to claim 1, characterized in that: The front surface of the door panel (3) is provided with a door handle (1).

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