A cast steel integrated civil air defense door leaf structure

Abstract

The present invention discloses a cast steel integrated civil air defense door leaf structure, which relates to the field of civil air defense doors, including a main leaf body and a main frame body, the main frame body is a rectangular frame body structure, the main frame body includes two horizontal transverse door frame strips and two vertical longitudinal door frame strips, the transverse door frame strips and the longitudinal door frame strips are integrally cast and formed, the transverse door frame strips and the longitudinal door frame strips are integrally cast and formed with the main leaf body, the main leaf body is composed of an inner panel, a main beam and a secondary beam, the main beam and the secondary beam are integrally cast and formed with the inner panel, the upper and lower sides of the main beam are vertically connected with a plurality of secondary beams, the secondary beams are staggered up and down, and the main beam and the secondary beam are integrally cast and formed. The casting process is used for integral casting, and the overall flatness, verticality, and rigidity of the door leaf are greatly improved compared with the welded structure, the distribution of the main and secondary beams and their cross-sectional design are optimized, there is no outer panel, the weight is reduced and the cost is reduced, and it is conducive to the casting of the leaf body and the subsequent demoulding treatment, and it is conducive to the standardized mass production of the door leaf.

Description

Technical Field

[0001] The present invention relates to the field of civil air defense doors, and in particular to a cast steel integrated civil air defense door leaf structure. Background Art

[0002] The openings of civil air defense projects need to be equipped with opening protection equipment, namely civil air defense doors, to block external explosion shock waves, poisonous gases, etc. to prevent damage to internal personnel and equipment. The explosion shock wave load is mainly borne by the civil air defense door leaf. The traditional civil air defense door leaf structure is processed and formed by welding the steel skeleton beam and the inner and outer panels together, which involves the procurement and inspection of various specifications of steel and steel plates, cutting, tooling fixation, combined welding, correction and other links. The production process has many links, many quality control points, strong quality control professionalism, and a lot of scraps. The overall accuracy of the door leaf is difficult to guarantee, which in turn affects the connection accuracy between it and the hinge and lock, resulting in increased difficulty in installation and debugging, and even affecting its final performance. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cast steel integrated civil air defense door leaf structure, comprising two mutually symmetrical main leaf bodies, each of the main leaf bodies is connected to a main frame body, the main frame body is a rectangular frame structure, the main frame body comprises two transverse door frame strips and two longitudinal door frame strips, the transverse door frame strips are arranged horizontally, the longitudinal door frame strips are arranged along the gravity direction, the transverse door frame strips and the longitudinal door frame strips are integrally cast and formed, the transverse door frame strips and the longitudinal door frame strips are integrally cast and formed with the main leaf body, the main leaf body is composed of an inner panel, a main beam and a secondary beam, the main beam and the secondary beam are integrally cast and formed with the inner panel, the upper and lower sides of the main beam are vertically connected to a plurality of secondary beams, the secondary beams are staggered up and down, and the main beam and the secondary beam are integrally cast and formed. The secondary beams are staggered between the main beams, the main leaf body adopts the secondary beams to be arranged vertically and staggered to form a skeleton, and the force direction of the main beam is consistent with the transverse door frame strips. The main leaf body and main frame are integrally formed by casting technology, and the door leaf is integrally formed by casting technology, replacing the traditional combined welding method, simplifying the door leaf manufacturing process, compressing the process links and quality control points, and improving the overall accuracy of the door leaf structure, thereby ensuring its protective sealing performance. And there is only an inner panel, no outer panel, to reduce weight.

[0004] Furthermore, the cross-section of the main beam and the cross-section of the secondary beam are both T-shaped. The main beam is continuous and T-shaped, which ensures the bearing performance. The cross-sections of the main and secondary beams are optimized with reference to the cross-sectional characteristics of H-shaped steel to ensure the strength and resistance performance of the main fan structure.

[0005] Furthermore, the cross section of the transverse door frame strip and the cross section of the longitudinal door frame strip are both L-shaped. The transverse door frame strip and the longitudinal door frame strip are both L-shaped, and the transverse door frame strip and the longitudinal door frame strip are integrally formed and connected end to end, thereby ensuring the overall flatness and verticality of the main frame.

[0006] Furthermore, the main beam is arranged along the length direction of the transverse door frame strip, the two ends of the main beam are respectively vertically connected to the longitudinal door frame strip, and the main beam and the longitudinal door frame strip are integrally cast and formed. The main beam continuously extends along the force direction of the transverse door frame strip, and the main beam extends to the main frame to ensure the strength of the connection with the main frame.

[0007] Furthermore, a safety support seat is integrally casted at the lower part of one longitudinal door frame bar, and hinge mounting seats are integrally casted at both ends of the other longitudinal door frame bar, and a first through hole is penetrated through the upper and lower parts of the safety support seat. The safety support seat and the hinge mounting seat are integrally casted with the main frame body, respectively, so that the connection strength between the components is guaranteed, and the overall strength and rigidity are guaranteed.

[0008] Furthermore, each of the hinge mounting seats includes a first plate body and a second plate body, the first plate body and the second plate body are spaced apart from each other, and second through holes are respectively penetrated through the first plate body and the second plate body. The second through holes are integrally cast by a casting process, and the second through holes are processed by a fine machining method after the first plate body and the second plate body are formed, thereby improving the overall accuracy of the door leaf structure.

[0009] Furthermore, each of the longitudinal door frame strips is provided with a locking seat at intervals, the longitudinal door frame strip and the locking seat are integrally cast, the locking seat is arranged above the safety support seat, and the locking seat is arranged between the two hinge mounting seats. The locking seats are distributed on the side of the main fan body and are integrally cast with the main fan body, so as to improve the precision of each component, accurately position each component, and ensure its protective sealing performance.

[0010] Furthermore, a hanging plate is integrally casted in the middle of the upper surface of the main frame, and a hanging hole is horizontally opened in the middle of the hanging plate. The hanging plate is integrally cast with the main fan body to facilitate the subsequent hanging of the door leaf.

[0011] Furthermore, the main fan body and the main frame body are made of cast steel, so that the main fan body and the main frame body structure meet the requirements of resistance and rigidity.

[0012] The working principle of the present invention is: the civil air defense door leaf is formed in one piece by using a casting process instead of combined welding, which greatly compresses the door leaf processing process links and quality control points on the basis of ensuring the bearing performance of the door leaf structure. The secondary beams are staggered between the main beams, and the cross-sections of the main and secondary beams are optimized with reference to the cross-sectional characteristics of the H-shaped steel. There is no outer panel, which reduces weight and is conducive to the casting of the fan body and subsequent demolding, so that it can adapt to the casting process. The main beam is continuous and the secondary beams are staggered, which ensures the bearing performance, improves the rigidity of the fan body, and facilitates casting to avoid defects. The main and secondary beams are formed in one piece with the inner panel, and the overall flatness, verticality, and rigidity of the door leaf are greatly improved compared to the welded structure, which can effectively improve the door leaf's ability to resist shock waves and its sealing performance when matched with the door frame. At the same time, the use of a casting process is more conducive to the standardized mass production of door leaves, which improves quality assurance and greatly improves production efficiency.

[0013] The beneficial effects of the present invention are as follows: the door leaf is integrally cast using a casting process, the overall flatness, verticality and rigidity of the door leaf are greatly improved compared to the welded structure, the distribution of the main and secondary beams is optimized, the cross-sections of the main and secondary beams are optimized, there is no external panel, the weight is reduced and the cost is reduced, and it is beneficial to the casting of the fan body and the subsequent demoulding process, which is beneficial to the standardized mass production of the door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 An overall schematic diagram of a cast steel integrated civil air defense door leaf structure provided by an embodiment of the present invention;

[0016] Figure 2 A schematic structural diagram of a cast steel integrated civil air defense door leaf structure provided in one embodiment of the present invention;

[0017] Figure 3 for Figure 2 AA section view;

[0018] Figure 4 for Figure 2 BB cross-sectional view.

[0019] Markings in the figure: main fan body 1, main frame body 2, transverse door frame strip 21, longitudinal door frame strip 22, hanging plate 3, hinge mounting seat 4, locking seat 5, safety support seat 6, main beam 11, secondary beam 12, inner panel 13. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0022] In the present invention, unless otherwise specified, directional terms such as "upper, lower, left, right" generally refer to the direction of the direction. Figure 1 "Inside and outside" refer to the inside and outside of a specific outline. "Far and near" refer to the far and near relative to a certain component.

[0023] like Figure 1-Figure 4 As shown in Figure 1 Taking a single leaf opening on the right side as an example, the distribution form is not unique. In this embodiment, the force direction of the door leaf is horizontal. A cast steel integrated civil air defense door leaf structure is provided in one embodiment of the present invention, comprising two mutually symmetrical main leaf bodies 1, each of the main leaf bodies 1 being connected to a main frame body 2, the main frame body 2 being a rectangular frame structure, the main frame body 2 comprising two transverse door frame strips 21 and two longitudinal door frame strips 22, the transverse door frame strips 21 being arranged horizontally, the longitudinal door frame strips 22 being arranged along the direction of gravity, the transverse door frame strips 21 and the longitudinal door frame strips 22 being integrally cast and formed, the transverse door frame strips 21 and the longitudinal door frame strips 22 being integrally cast and formed with the main leaf body 1 respectively, the main leaf body 1 being composed of an inner panel 13, a main beam 11 and a secondary beam 12, the main beam 11 and the secondary beam 12 being integrally cast and formed with the inner panel 13 respectively, the upper and lower sides of the main beam 11 being vertically connected to a plurality of secondary beams 12, the secondary beams 12 being staggered up and down, and the main beam 11 and the secondary beam 12 being integrally cast and formed. The secondary beams 12 are staggered between the main beams 11, and the main fan body 1 adopts the secondary beams 12 to form a skeleton in a vertically staggered arrangement. The force direction of the main beam 11 is consistent with the horizontal door frame strip 21. The main fan body 1 and the main frame 2 are integrally formed by a casting process, and the door leaf is integrally formed by a casting process, which replaces the traditional combined welding method, simplifies the door leaf manufacturing process, compresses the process links and quality control points, and improves the overall accuracy of the door leaf structure, thereby ensuring its protective sealing performance. And there is only an inner panel 13, no outer panel, which reduces weight. The main beam 11 and the secondary beam 12 are integrally cast and formed, which has the advantages of strong bending resistance in all directions, simple construction, cost saving and light structure weight.

[0024] The cross-section of the main beam 11 and the cross-section of the secondary beam 12 are both T-shaped. The main beam 11 is continuous and T-shaped, which ensures the bearing performance. The cross-sections of the main and secondary beams 12 are optimized with reference to the cross-sectional characteristics of H-shaped steel to ensure the strength and resistance performance of the main fan body 1 structure.

[0025] The cross section of the transverse door frame strip 21 and the cross section of the longitudinal door frame strip 22 are both L-shaped. The transverse door frame strip 21 and the longitudinal door frame strip 22 are both L-shaped, and the transverse door frame strip 21 and the longitudinal door frame strip 22 are integrally formed and connected end to end, ensuring the overall flatness and verticality of the main frame 2.

[0026] The main beam 11 is arranged along the length direction of the transverse door frame strip 21, and the two ends of the main beam 11 are respectively perpendicularly connected to the longitudinal door frame strip 22, and the main beam 11 and the longitudinal door frame strip 22 are integrally cast and formed. The main beam 11 extends continuously along the force direction of the transverse door frame strip 21, and the main beam 11 extends to the main frame 2 to ensure the strength of the connection with the main frame 2.

[0027] A safety support seat 6 is integrally cast and formed at the lower part of one longitudinal door frame bar 22, and hinge mounting seats 4 are integrally cast and formed at both ends of the other longitudinal door frame bar 22, and a first through hole is penetrated through the upper and lower parts of the safety support seat 6. The safety support seat 6 and the hinge mounting seat 4 are integrally cast and formed with the main frame body 2, respectively, so that the connection strength between the components is guaranteed, and the overall strength and rigidity are guaranteed.

[0028] Each hinge mounting seat 4 includes a first plate body and a second plate body, the first plate body and the second plate body are spaced apart from each other, and second through holes are respectively penetrated through the first plate body and the second plate body. The second through holes are integrally cast by a casting process, and the second through holes are processed by a finishing process after the first plate body and the second plate body are formed.

[0029] Each of the longitudinal door frame strips 22 is provided with a locking seat 5 at intervals, the longitudinal door frame strip 22 and the locking seat 5 are integrally cast, the locking seat 5 is arranged above the safety support seat 6, and the locking seat 5 is arranged between the two hinge mounting seats 4. The locking seats 5 are distributed on the side of the main fan body 1 and are integrally cast with the main fan body 1. The positioning between the various components is accurate, which is convenient for subsequent assembly and debugging.

[0030] The middle part of the upper surface of the main frame 2 is integrally cast and provided with a hanging plate 3, and a hanging hole is horizontally opened in the middle part of the hanging plate 3. The hanging plate 3 is integrally cast and formed with the main fan body 1, which is convenient for subsequent hanging of the door fan.

[0031] The main fan body 1 and the main frame body 2 are made of cast steel, so that the structures of the main fan body 1 and the main frame body 2 meet the requirements of resistance and rigidity.

[0032] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cast steel integrated civil air defense door leaf structure, characterized in that: The invention comprises two main fan bodies symmetrical to each other, each of the main fan bodies is connected to a main frame body, the main frame body is a rectangular frame structure, the main frame body comprises two transverse door frame strips and two longitudinal door frame strips, the transverse door frame strips are arranged horizontally, the longitudinal door frame strips are arranged along the gravity direction, the transverse door frame strips and the longitudinal door frame strips are integrally cast and formed, the transverse door frame strips and the longitudinal door frame strips are respectively integrally cast and formed with the main fan body, the main fan body is composed of an inner panel, a main beam and a secondary beam, the main beam and the secondary beam are respectively integrally cast and formed with the inner panel, a plurality of secondary beams are vertically connected to the upper and lower side surfaces of the main beam, the secondary beams are staggered up and down, the main beam and the secondary beam are integrally cast and formed, the cross section of the transverse door frame strip and the cross section of the longitudinal door frame strip are both L-shaped, the main beam is arranged along the length direction of the transverse door frame strip, the two ends of the main beam are respectively vertically connected to the longitudinal door frame strip, and the main beam and the longitudinal door frame strip are integrally cast and formed; A safety support seat is integrally cast at the lower part of a longitudinal door frame strip, and hinge mounting seats are integrally cast at both ends of the other longitudinal door frame strip. A first through hole is penetrated through the safety support seat from top to bottom. Each of the hinge mounting seats includes a first plate body and a second plate body, and the first plate body and the second plate body are spaced apart from each other, and second through holes are penetrated through the first plate body and the second plate body from top to bottom. Lock seats are spaced apart on each of the longitudinal door frame strips, and the longitudinal door frame strip and the lock seats are integrally cast, and the lock seats are arranged above the safety support seat, and the lock seats are arranged between the two hinge mounting seats.

2. The cast steel integrated civil air defense door leaf structure according to claim 1 is characterized in that: The cross section of the main beam and the cross section of the secondary beam are both T-shaped.

3. The cast steel integrated civil air defense door leaf structure according to claim 1 is characterized in that: A hanging plate is integrally cast and formed in the middle of the upper surface of the main frame, and a hanging hole is horizontally opened in the middle of the hanging plate.

4. The cast steel integrated civil air defense door leaf structure according to claim 1 is characterized in that: The main fan body and the main frame body are made of cast steel.

Images