Detachable stainless steel civil defense door protection device

Abstract

The utility model belongs to the technical field of civil air defense facilities, and relates to a detachable stainless steel civil air defense door protection device which comprises a frame body and cover plates, an inner frame of the frame body is fixedly connected to the periphery of a civil air defense door, and adjacent stainless steel decorative cover plates on the upper layer and the lower layer are assembled in a socket mode through bearing plates. The self-weight of each layer of stainless steel veneer is conducted through the metal frame body, the situation that the stainless steel veneer deforms due to the fact that the self-weight is directly transmitted by the upper layer and the lower layer of the stainless steel veneer is avoided, the cover plates connected with the mortise and tenon joint structures in an inserted mode and the cover plates and the frame body are convenient to disassemble and assemble, and therefore daily inspection of the civil air defense door is convenient. And the cost waste caused by rewelding or plate replacement construction in the prior art is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil air defense facilities and relates to a detachable stainless steel civil air defense door protection device. Background Art

[0002] Air defense engineering facilities refer to underground protective buildings constructed separately to protect personnel and materials during wartime, air defense command, and medical rescue, as well as basements that can be used for air defense during wartime in combination with ground buildings. The main purpose of civil air defense facilities is to guard against sudden enemy attacks, effectively shelter personnel and materials, and are important facilities for preserving the war potential; they are the guarantee for persevering in urban battles and supporting the anti-aggression war for a long time until victory. The civil air defense door is a special protective device for the entrance and exit of air defense projects (civil defense projects), used to protect personnel and facilities from nuclear weapons and conventional weapons attacks during wartime or emergencies. The civil air defense door has multiple functions such as protection, airtightness, gas protection, and explosion protection, and can resist the harm of shock waves, radioactive dust, chemical agents, etc.

[0003] Generally, basements are relatively humid. After the civil air defense door is installed (as Figure 1 shown), it is exposed in the basement for a long time. All components of the civil air defense door are in a humid environment for a long time, and the components are prone to rust. Various protruding components of the civil air defense door may cause certain harm (damage) to surrounding pedestrians, vehicles, and item transportation. Currently, the protection facilities for civil air defense doors usually use decoration wrapping or spot welding process of stainless steel plates to wrap the civil air defense door.

[0004] However, the existing civil air defense door protection facilities have the following disadvantages:

[0005] First of all, since the civil air defense project needs to undergo civil air defense acceptance and regular inspections before delivery. During the acceptance of the civil air defense project, it is necessary to test whether the civil air defense door can be normally opened or closed. Therefore, the civil air defense door cannot be decorated and wrapped before the civil air defense acceptance. After the civil air defense acceptance, due to the approaching delivery, the construction period is generally relatively tight, and the construction time using decoration wrapping or metal plate spot welding process is relatively long, which may affect the later delivery. During the civil air defense inspection, it is necessary to display or test the civil air defense door. After the protection facilities are constructed using decoration wrapping or metal plate spot welding process, the civil air defense door is not convenient for the daily inspection of the civil air defense competent department. If it is removed, it is necessary to re-weld or replace the plate for construction, resulting in cost waste.

[0006] Secondly, the spot welding process is limited by the construction technology level of workers, and the construction quality cannot be fully guaranteed. Especially for thin stainless steel plates, problems such as subsequent welding breakage and welding drop may occur in the spot welding process, and at the same time, the flatness may be relatively poor, affecting the appearance.

[0007] Thirdly, industrialized production cannot be formed, and the cost of plates + labor is much higher than the factory batch templated production.

[0008] Fourth, the sheet material needs to be cut or sliced on-site, which may cause material damage and is not expected to be reasonably reused.

[0009] Fifth, for customized products, it is difficult to implement the spot welding process or the cost is relatively high.

[0010] Sixth, the fire resistance limit of ordinary decoration materials cannot meet the requirements of the current national fire protection code.

[0011] Seventh, ordinary decoration materials are not convenient for daily cleaning.

[0012] Therefore, there is an urgent need for a simple, convenient, reliable, low-cost, easy-to-clean, and detachable protection device for civil air defense doors to solve this technical problem. Summary of the Utility Model

[0013] The technical solution adopted by the utility model to solve the technical problem is: a detachable stainless steel protection device for civil air defense doors, including: a frame body and a cover plate. The frame body includes: vertical stiles and horizontal keels. The vertical stiles are in the shape of vertical columns, and the horizontal keels are in the shape of horizontal beams. The frame body is in the shape of a rectangular parallelepiped frame formed by splicing and / or overlapping the vertical stiles and the horizontal keels. The overlapping parts of the vertical stiles and the horizontal keels are fixedly connected by a bent and shaped support member in a manner of cooperating with bolts and through holes to fix the vertical stiles, the horizontal keels, and the support member. The inner frame of the frame body is fixedly connected to the periphery of the civil air defense door;

[0014] The cover plates are fixedly connected by mortise and tenon joints, or the cover plates and the frame body are fixedly connected by mortise and tenon joints.

[0015] Preferably, the manner in which the cover plates are fixedly connected by mortise and tenon joints or the cover plates and the frame body are fixedly connected by mortise and tenon joints includes:

[0016] The cover plate includes: a vertical panel and a horizontal panel, and the vertical panel and the horizontal panel are respectively rectangular; a downward convex flange protrudes from the lower edge of the vertical panel, and a bent portion with an S-shaped cross-section is bent at the upper edge of the vertical panel, and the two notches of the bent portion face the upper and lower sides respectively; a horizontally bent edge is provided around the horizontal panel and bends downward;

[0017] Multiple layers of supporting plates protruding from the outer side wall of the horizontal keel are provided on the horizontal keel. The supporting plates include: the lowermost supporting plate and the middle and upper supporting plates. The part of the lowermost supporting plate protruding from the horizontal keel is bent upward to form a supporting plate U-shaped groove with an upward opening, and the part of the middle and upper supporting plates protruding from the horizontal keel is bent upward to form a supporting plate folded edge with a blade edge upward; the lowermost supporting plate is fixedly connected to the bottom of the frame body, the middle and upper supporting plates are fixedly connected to the top of the frame body, and at least one layer of middle and upper supporting plates is provided on the side surface of the frame body, and each layer of supporting plates is parallel to each other;

[0018] The lower flange of the lowermost vertical panel is inserted into the U-shaped groove of the supporting plate, the notch facing downward at the bent portion of the lowermost vertical panel is sleeved on the folded edge of the supporting plate of the middle-upper supporting plate, the lower flange of the uppermost vertical panel is inserted into the notch facing upward at the bent portion of the adjacent lower vertical panel, the notch facing downward at the bent portion of the uppermost vertical panel is sleeved on the folded edge of the supporting plate of the middle-upper supporting plate at the top of the frame body, the lower flange of the middle-layer vertical panel is inserted into the notch facing upward at the bent portion of the adjacent lower vertical panel, and the notch facing downward at the bent portion of the middle-layer vertical panel is sleeved on the folded edge of the supporting plate of the upper adjacent middle-upper supporting plate;

[0019] The horizontal plate covers the top of the frame body, and the bent edge of the horizontal plate of the horizontal plate is inserted downward into the notch facing upward at the bent portion of the uppermost vertical panel.

[0020] More preferably, the supporting plate further includes: an inner top supporting plate, the part of the inner top supporting plate extending out of the top transverse keel is U-shaped with an upward opening, the inner top supporting plate is arranged on the hinge side of the top transverse keel, and the bent edge of the horizontal plate on the hinge side of the horizontal plate is inserted into the U-shaped groove of the inner top supporting plate.

[0021] More preferably, the height spacing between adjacent two supporting plates is equal.

[0022] Preferably, the vertical stiles and the transverse keels are made of U-shaped metal grooves, and the cover plates are made of stainless steel.

[0023] Preferably, a tie device is provided at the vertical joint of two adjacent vertical panels at the horizontal corner of the frame body.

[0024] More preferably, the tie device includes: a corner lining plate and a U-shaped clamp. The corner lining plate is L-shaped, and the U-shaped clamp is in the shape of a U-shaped groove. The corner lining plates are used in pairs. The long L-shaped sides of the two corner lining plates are respectively fixedly connected to the corners of the two adjacent vertical panels, and the short L-shaped sides of the two corner lining plates extend into the U-shaped groove of the U-shaped clamp and are clamped and fixed.

[0025] Preferably, the inner frame of the frame body is detachably connected to the periphery of the civil air defense door.

[0026] The beneficial effects of the present utility model are:

[0027] 1. The present utility model forms a stable support structure through the mutual assembly of bolts, support members, U-shaped metal transverse keels (perforated / non-perforated), and U-shaped metal vertical stiles.

[0028] 2. The supporting plate of the present utility model is connected to the metal frame body by bolts. The supporting plate can close the bottom of the metal frame body, beautify the bottom while supporting the stainless steel decorative panel; the obtuse angle of the supporting plate warps upward, which can partially offset the self-weight of the stainless steel decorative panel, reduce the vertical force, and improve the durability of the supporting plate.

[0029] 3. The adjacent upper and lower stainless steel decorative panels of the present utility model are assembled in a socket-and-spigot manner through the supporting plates, so that the self-weight of each layer of stainless steel decorative panel is conducted through the metal frame, avoiding the direct transfer of the self-weight between the upper and lower layers of the stainless steel decorative panel, thereby preventing the deformation of the stainless steel decorative panel.

[0030] 4. Affected by the vertical mullion at the vertical corner of the present utility model, after partial chamfering of the supporting plate, a cantilever is formed at a part of the supporting plate, and the structural stress is relatively weak. Therefore, after the adjacent stainless steel decorative panels are inserted into the supporting plate or the supporting plate, a corner lining plate is added and installed in the upper notch of the stainless steel decorative panel, so as to form a tying effect on the adjacent stainless steel decorative panels.

[0031] 5. The partial flanging at the corner position of the stainless steel decorative panel of the present utility model can form enhanced protection for the corner position. The adjacent stainless steel decorative panels are tied by using U-shaped clamps on the side flanges, improving the stability of the corner part. At the same time, the side flanges of the corner of the stainless steel decorative panel can effectively prevent the thin side edge of the stainless steel from hurting people and objects.

[0032] 6. The stainless steel decorative panel of the present utility model is inserted into the upper notch of the stainless steel decorative panel 1 and the supporting plate, and its lower flange forms a bayonet with the upper notch of the stainless steel decorative panel, ensuring its use safety and preventing it from falling.

[0033] 7. The present utility model can design the protection facilities of corresponding modules for different types of civil air defense doors, can be industrially mass-produced, and rationally integrates and utilizes raw materials, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of a civil air defense door in the prior art;

[0035] Figure 2 is a top view of the one-word door of a detachable stainless steel civil air defense door protection device of the present utility model;

[0036] Figure 3 is a top view of the L-shaped door of the present utility model;

[0037] Figure 4 is a top view of the connection of the metal frame, stainless steel decorative vertical panel and bolt of the present utility model;

[0038] Figure 5 is a three-dimensional view of the connection of the metal frame, stainless steel decorative vertical panel and bolt of the present utility model;

[0039] Figure 6 is a front cross-sectional view of the connection of the metal frame, stainless steel decorative vertical panel and bolt of the present utility model;

[0040] Figure 7 is Figure 6 a partial enlarged view in the direction A of

[0041] Figure 8 is Figure 6 The partial enlarged view of direction B;

[0042] Figure 9 is Figure 6 The partial enlarged view of direction C;

[0043] Figure 10 is the front three-dimensional view of the connection seam of the vertical panel of the present utility model;

[0044] Figure 11 is the rear three-dimensional view of the connection seam of the vertical panel of the present utility model;

[0045] Figure 12 is the part drawing of the vertical panel of the present utility model;

[0046] Figure 13 is the part drawing of the horizontal panel of the present utility model;

[0047] Figure 14 is the part drawing of the bottommost supporting plate of the present utility model;

[0048] Figure 15 is the part drawing of the middle and upper supporting plates of the present utility model;

[0049] Figure 16 is the part drawing of the supporting plate of the present utility model;

[0050] Figure 17 is the left side sectional view of the connection of the metal frame, stainless steel decorative vertical panel and bolt of the present utility model;

[0051] Figure 18 is Figure 17 The partial enlarged view of direction D.

[0052] Among them, 1. Frame; 2. Cover plate; 3. Vertical stile; 4. Horizontal keel; 5. Support; 6. Bolt; 7. Through hole; 8. Civil air defense door; 9. Vertical panel; 10. Horizontal panel; 11. Lower flange; 12. Bending part; 13. Bending edge of horizontal panel; 14. Support plate; 15. Bottommost support plate; 16. Middle and upper support plates; 17. U-shaped groove of support plate; 18. Flange of support plate; 19. Corner lining plate; 20. U-shaped clamp; 21. Inner top support plate. Specific embodiments

[0053] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the related technologies in the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0054] Referring Figures 1 to 18 , a detachable stainless-steel civil air defense door protection device of the present utility model includes: a frame body 1 and a cover plate 2. The frame body 1 includes: vertical posts 3 and horizontal keels 4. The vertical posts 3 are in the shape of vertical columns, and the horizontal keels 4 are in the shape of horizontal beams. The frame body 1 is in the shape of a cuboid frame formed by splicing and / or lapping the vertical posts 3 and the horizontal keels 4. At the lapping part of the vertical posts 3 and the horizontal keels 4, the vertical posts 3, the horizontal keels 4 and the support member 5 are fixedly connected by a support member 5 with a bent and shaped structure through the cooperation of bolts 6 and through holes 7. The inner frame of the frame body 1 is fixedly connected to the periphery of the civil air defense door 8;

[0055] The cover plates 2 are fixedly connected by mortise and tenon structure insertion, or the cover plates 2 and the frame body 1 are fixedly connected by mortise and tenon structure insertion; the disassembly and assembly between the cover plates 2 connected by mortise and tenon structure insertion and between the cover plates 2 and the frame body 1 are convenient, so it is convenient for the daily inspection of the civil air defense door, and the cost waste caused by re-welding or re-plating construction in the prior art is reduced.

[0056] Furthermore, the manner in which the cover plates 2 are fixedly connected by mortise and tenon structure insertion or the cover plates 2 and the frame body 1 are fixedly connected by mortise and tenon structure insertion includes:

[0057] The cover plate 2 includes: a vertical panel 9 and a horizontal plate 10, and the vertical panel 9 and the horizontal plate 10 are respectively rectangular; the lower edge of the vertical panel 9 is provided with a downward protruding lower flange 11, the upper edge of the vertical panel 9 is bent with a bent portion 12 with an S-shaped cross-section, and the two notches of the bent portion 12 face the upper and lower sides respectively; the periphery of the horizontal plate 10 is provided with a horizontally bent edge 13 that bends downward;

[0058] The horizontal keel 4 is provided with multiple layers of support plates 14 protruding from the outer side wall of the horizontal keel 4. The support plates 14 include: the lowermost support plate 15 and the middle and upper support plates 16. The part of the lowermost support plate 15 protruding from the horizontal keel 4 is bent upward to form a support plate U-shaped groove 17 with an upward opening, and the part of the middle and upper support plates 16 protruding from the horizontal keel 4 is bent upward to form a support plate folded edge 18 with an upward edge; the lowermost support plate 15 is fixedly connected to the bottom of the frame body 1, the middle and upper support plates 16 are fixedly connected to the top of the frame body 1, and at least one layer of middle and upper support plates 16 is provided on the side surface of the frame body 1. Each layer of support plates 14 is parallel to each other;

[0059] The lower flange 11 of the lowermost vertical panel 9 is inserted into the U-shaped groove 17 of the supporting plate. The notch facing downward of the bent portion 12 of the lowermost vertical panel 9 is sleeved on the folded edge 18 of the supporting plate of the middle and upper supporting plate 16. The lower flange 11 of the uppermost vertical panel 9 is inserted into the notch facing upward of the bent portion 12 of the adjacent lower vertical panel 9. The notch facing downward of the bent portion 12 of the uppermost vertical panel 9 is sleeved on the folded edge 18 of the middle and upper supporting plate 16 at the top of the frame body 1. The lower flange 11 of the middle layer vertical panel 9 is inserted into the notch facing upward of the bent portion 12 of the adjacent lower vertical panel 9. The notch facing downward of the bent portion 12 of the middle layer vertical panel 9 is sleeved on the folded edge 18 of the upper adjacent middle and upper supporting plate 16;

[0060] The horizontal plate 10 covers the top of the frame body 1, and the bent edge 13 of the horizontal plate 10 is inserted downward into the notch facing upward of the bent portion 12 of the uppermost vertical panel 9.

[0061] Furthermore, the supporting plate 14 further includes: an inner top supporting plate 21. The part of the inner top supporting plate 21 extending out of the top transverse keel 4 is U-shaped with an upward opening. The inner top supporting plate 21 is arranged on the hinge side of the top transverse keel 4. The bent edge 13 of the horizontal plate 10 on the hinge side is inserted into the U-shaped groove of the inner top supporting plate 21; The inner top supporting plate 21 is installed on the upper surface of the top transverse keel 4, with a U-shaped shape with an upward opening and located on the hinge side. Since the vertical panel 9 cannot be arranged on the hinge side, there is no upper edge bending of the vertical panel 9 to provide support for the horizontal plate 10 on the hinge side. The inner top supporting plate 21 provides support for the horizontal plate 10 on the hinge side, making the horizontal plate 10 supported by three sides become supported by four sides, making the horizontal plate 10 more stable and reliable.

[0062] Furthermore, the height intervals between adjacent two supporting plates 14 are equal; The equal height intervals make the heights of the vertical panels 9 equal, reducing the production, processing, and transportation models of the vertical panels 9. At the same time, the vertical panels 9 between different layers can be interchanged and used universally, reducing costs and improving efficiency.

[0063] Further, the vertical stiles 3 and the transverse keels 4 are made of U-shaped metal grooves, and the cover plate 2 is made of stainless steel.

[0064] Further, a tie device is provided at the vertical joint of the two vertical panels 9 adjacent to the horizontal corner of the frame body 1.

[0065] Furthermore, the tie device includes: a corner lining plate 19 and a U-shaped clamp 20. The corner lining plate 19 is L-shaped, and the U-shaped clamp 20 is in the shape of a U-shaped groove. The corner lining plates 19 are used in pairs. The long L-shaped sides of the two corner lining plates 19 are respectively fixedly connected to the corners of two adjacent vertical panels 9. The short L-shaped sides of the two corner lining plates 19 extend into the U-shaped groove of the U-shaped clamp 20 and are clamped and fixed. The tie device is used to detachably connect the seams between two adjacent vertical panels 9, facilitating the disassembly and installation of the vertical panels 9 during the daily inspection of the civil air defense door.

[0066] Further, the inner frame of the frame body 1 is detachably connected to the periphery of the civil air defense door 8.

[0067] Embodiment

[0068] In this embodiment of the present utility model, the metal frame body 1, the stainless steel cover plate 2 and the bolts 6 are connected to form a detachable stainless steel civil air defense door protection facility, which can be respectively applied to the "linear" opening state and the "L-shaped" opening state of the civil air defense door.

[0069] 1) Metal frame body 1

[0070] The U-shaped metal groove is used as the vertical stile 3 and the horizontal keel 4 for assembly. The vertical stile 3, the horizontal keel 4 and the support member 5 are connected by bolts 6. One assembly is adjacent to the outside (both sides), and the other assembly is adjacent to the inside, forming a metal frame body 1 for fixedly supporting the bearing plate 14.

[0071] 2) This embodiment of the technology uses a stainless steel plate as the base material, and utilizes its good ductility to perform local bending to form different components as the bearing plate 14.

[0072] The bearing plate 14 is provided with connecting through holes 7 at certain intervals. When the finished detachable stainless steel civil air defense door protection facility is located at the corner position, the bearing plate 14 is combined with the shape of the vertical stile 3, and local right-angle cutting is performed, and a 45° angle is cut at the end, and angle cutting is performed at the inner corner.

[0073] The lowermost bearing plate 15 is locally bent downward to form an upper concave notch;

[0074] The middle and upper bearing plates are locally warped and bent;

[0075] The top inner bearing plate is locally bent to form an upper concave notch + a lower concave notch.

[0076] The top of the vertical panel 9 is in the shape of an S with an upper concave notch + a lower concave notch, the bottom is locally slightly flanged, both sides are locally expanded, and are separately flanged, and the fold angle is an acute angle;

[0077] For the horizontal plate 10, the four sides are bent downward to make flanges. The outer downward fold angle is less than 90°, the inner downward fold angle is greater than 90°, and the four corners of the flange are respectively cut, and the developed view is an obtuse angle.

[0078] U-shaped clamp 20, with its two wings slightly converging inward.

[0079] 3) Connection between U-shaped metal channel and support plate 14

[0080] Connect the connection holes with the connection holes of the U-shaped steel channel (horizontal keel 4) through screws, and add washers during connection;

[0081] 4) Fix the outer vertical panel 9 (from top to bottom)

[0082] The lower flange 11 of the lowermost vertical panel 9 is inserted into the U-shaped groove 17 of the support plate. The concave notch of the bent part 12 of the lowermost vertical panel 9 facing down is sleeved on the support plate folded edge 18 of the middle and upper support plate 16. The lower flange 11 of the uppermost vertical panel 9 is inserted into the concave notch of the bent part 12 of the adjacent lower vertical panel 9 facing up. The concave notch of the bent part 12 of the uppermost vertical panel 9 facing down is sleeved on the support plate folded edge 18 of the middle and upper support plate 16 at the top of the frame body 1. The lower flange 11 of the middle layer vertical panel 9 is inserted into the concave notch of the bent part 12 of the adjacent lower vertical panel 9 facing up. The concave notch of the bent part 12 of the middle layer vertical panel 9 facing down is sleeved on the support plate folded edge 18 of the adjacent upper middle and upper support plate 16.

[0083] 5) For two adjacent components at the corner, add a corner lining plate 19 and insert it into the upper concave notch of the component.

[0084] 6) For two adjacent components at the corner, use a U-shaped clamp 20 to tie the acute-angled folded edges of the two corner lining plates 19 on both sides to form a closed effect.

[0085] The key technical points in this embodiment include:

[0086] 1. The support plate is connected to the metal frame body through bolts. The support plate can close the bottom of the metal frame body, beautify the bottom while supporting the stainless steel decorative panel. The obtuse angle of the support plate warps upward, which can partially offset the self-weight of the stainless steel decorative panel, reduce the vertical force, and improve the durability of the support plate.

[0087] 2. The adjacent upper and lower stainless steel decorative panels are assembled in a socket and spigot manner through the support plate and the support plate, so that the self-weight of each layer of stainless steel decorative panel is conducted through the metal frame body, avoiding the direct transfer of the self-weight between the upper and lower layers of the stainless steel decorative panel, which may cause deformation of the stainless steel decorative panel.

[0088] 3. Affected by the vertical mullion at the vertical corner, after partial chamfering of the support plate, a partial overhang is formed on the support plate, and the structural force is relatively weak. Therefore, after inserting the adjacent stainless steel decorative panels into the support plate or the support plate, a corner lining plate is added and installed in the upper concave notch of the stainless steel decorative panel, so as to form a tying effect on the adjacent stainless steel decorative panels.

[0089] 4. The partial hemming at the corner of the stainless steel decorative panel can provide enhanced protection to the corner. A U-shaped clamp is used to tie the side hems of adjacent stainless steel decorative panels, improving the stability of the corner area. At the same time, the side hems at the corners of the stainless steel decorative panel can effectively prevent the edges of the thin stainless steel from causing harm to the human body and objects.

[0090] 5. The stainless steel decorative panel is inserted into the upper notch and the supporting plate of the stainless steel decorative panel. Its lower hem forms a bayonet with the upper notch of the stainless steel decorative panel, ensuring its safe use and preventing it from falling off.

[0091] In summary, through the mutual assembly of bolts, support members, U-shaped metal transverse keels (perforated / non-perforated), and U-shaped metal vertical posts, the present utility model forms a stable support structure. At the same time, the adjacent stainless steel decorative panels of the upper and lower layers are assembled in a socket-and-spigot manner through the supporting plate, enabling the self-weight of each layer of stainless steel decorative panel to be conducted through the metal framework, avoiding the direct transfer of the self-weight between the upper and lower layers of the stainless steel decorative panel, which may cause deformation of the stainless steel decorative panel. The cover plates connected by the mortise-and-tenon structure are convenient to disassemble and assemble, as well as between the cover plates and the framework. Therefore, it is convenient for the daily inspection of the civil air defense door, reducing the cost waste caused by re-welding or re-plating construction in the prior art. Thus, the present utility model has a wide range of application prospects.

[0092] It should be emphasized that the above are only the preferred embodiments of the present utility model, and there is no limitation in any form to the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A detachable stainless steel civil air defense door protection device, characterized in that: include: A frame (1) and a cover plate (2), wherein the frame (1) comprises: a vertical column (3) and a horizontal keel (4), wherein the vertical column (3) is in the shape of a vertically placed column, and the horizontal keel (4) is in the shape of a horizontally arranged beam, and the frame (1) is in the shape of a rectangular parallelepiped frame in which the vertical column (3) and the horizontal keel (4) are spliced ​​and or overlapped, and the overlap between the vertical column (3) and the horizontal keel (4) is fixedly connected to the vertical column (3), the horizontal keel (4) and the support member (5) by a bent and shaped support member (5) through a bolt (6) and a through hole (7), and the inner frame of the frame (1) is fixedly connected to the periphery of the civil air defense door (8); The cover plates (2) are connected and fixed via a mortise and tenon structure, or the cover plates (2) and the frame (1) are connected and fixed via a mortise and tenon structure.

2. A detachable stainless steel civil defense door protection device according to claim 1, characterized in that: The cover plates (2) are connected and fixed by means of a mortise and tenon structure or the cover plates (2) and the frame (1) are connected and fixed by means of a mortise and tenon structure, including: The cover plate (2) comprises: a vertical panel (9) and a horizontal panel (10), wherein the vertical panel (9) and the horizontal panel (10) are respectively rectangular; the lower edge of the vertical panel (9) is provided with a downwardly protruding lower flange (11), the upper edge of the vertical panel (9) is bent to form a bent portion (12) with an S-shaped vertical cross section, and the two notches of the bent portion (12) are respectively oriented to the upper and lower sides; the horizontal panel (10) is provided with a downwardly bent horizontal panel bent edge (13) around its periphery; The transverse keel (4) is provided with a plurality of supporting plates (14) extending out of the outer side wall of the transverse keel (4), and the supporting plates (14) include: a bottom supporting plate (15) and a middle and upper supporting plate (16); the portion of the bottom supporting plate (15) extending out of the transverse keel (4) is bent upward to form a supporting plate U-shaped groove (17) with an opening facing upward; the portion of the middle and upper supporting plate (16) extending out of the transverse keel (4) is bent upward to form a supporting plate folding edge (18) with a cutting edge facing upward; the bottom supporting plate (15) is fixedly connected to the bottom of the frame (1), the top of the frame (1) is fixedly connected to the middle and upper supporting plate (16), and at least one middle and upper supporting plate (16) is provided on the side of the frame (1), and each layer of supporting plates (14) are parallel to each other; The lower flange (11) of the bottommost vertical panel (9) is inserted into the U-shaped groove (17) of the support plate, the downwardly facing notch of the bent portion (12) of the bottommost vertical panel (9) is sleeved on the support plate folding edge (18) of the middle and upper support plate (16), the lower flange (11) of the topmost vertical panel (9) is inserted into the upwardly facing notch of the bent portion (12) of the lower adjacent vertical panel (9), and the topmost vertical panel (9) The notch of the bent portion (12) facing downwards is sleeved on the support plate folding edge (18) of the middle-upper support plate (16) at the top of the frame (1), the lower flange (11) of the middle-layer vertical panel (9) is inserted into the notch of the bent portion (12) facing upwards of the lower adjacent vertical panel (9), and the notch of the bent portion (12) of the middle-layer vertical panel (9) facing downwards is sleeved on the support plate folding edge (18) of the upper adjacent middle-upper support plate (16); The horizontal plate (10) covers the top of the frame (1), and the horizontal plate bending edge (13) of the horizontal plate (10) is inserted downward into the upward recess of the bending portion (12) of the uppermost vertical panel (9).

3. A detachable stainless steel civil defense door protection device according to claim 2, characterized in that: The support plate (14) further comprises: a top inner support plate (21); the portion of the top inner support plate (21) extending out of the top transverse keel (4) is in a U-shape with an opening upward; the top inner support plate (21) is arranged on one side of the door axis of the top transverse keel (4); and a horizontal plate bent edge (13) of the horizontal plate (10) close to the door axis is inserted into the U-shaped groove of the top inner support plate (21).

4. A detachable stainless steel civil defense door protection device according to claim 2, characterized in that: The height spacing between two adjacent layers of the supporting plates (14) is equal.

5. The detachable stainless steel door protection device according to claim 1 is characterized in that: The vertical bars (3) and the horizontal keels (4) are made of U-shaped metal grooves, and the cover plate (2) is made of stainless steel.

6. A detachable stainless steel door protection device according to claim 2, characterized in that: A tie device is provided at the vertical joints of the two adjacent vertical panels (9) at the horizontal corner of the frame (1).

7. A detachable stainless steel door protection device according to claim 6, characterized in that: The tie-tying device comprises: a corner lining plate (19) and a U-shaped clamp (20); the corner lining plate (19) is L-shaped, the U-shaped clamp (20) is U-shaped, the corner lining plates (19) are used in pairs, the L-shaped long sides of the two corner lining plates (19) are respectively fixedly connected to the corners of two adjacent vertical panels (9), and the L-shaped short sides of the two corner lining plates (19) extend into the U-shaped groove of the U-shaped clamp (20) to be clamped and fixed.

8. The detachable stainless steel door protection device according to claim 1 is characterized in that: The inner frame of the frame body (1) is detachably connected to the periphery of the civil air defense door (8).

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