Anti-radiation civil air defense door

Abstract

The utility model relates to the field of civil air defense doors, and discloses an anti-radiation civil air defense door which comprises a door frame, a hinge block is fixed to the front face of the door frame, a hinge door is hinged to the interior of the hinge block, four stabilizing blocks are fixed to the front face of the hinge door, and two fixing blocks are fixed to the front face of the door frame. And meshing plates penetrating through the two fixing blocks correspondingly are slidably connected into the two top stabilizing blocks and the two bottom stabilizing blocks, limiting blocks are fixed to the sides, away from the fixing blocks, of the meshing plates, and a pushing assembly is meshed between the two meshing plates. According to the anti-radiation civil air defense door, the meshing plate can be moved by rotating the pushing assembly, so that the meshing plate is inserted into the fixing block on the door frame, then the hinged door is fixed, and the anti-radiation door can be pushed to move towards the door frame by rotating the pushing assembly, so that the overall sealing performance can be effectively improved; and therefore, the whole body is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to a radiation-proof civil air defense door. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. The classification of civil defense doors is relatively clear, including ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors and other civil defense equipment.

[0003] For example, the Chinese utility model patent with publication number CN211342555U discloses a civil air defense door, comprising a door frame and a door leaf rotatably connected to the door frame. An empty groove is provided on the inner side of the door leaf, which passes through the bottom of the door leaf, and an installation box is embedded in the empty groove. A partition perpendicular to the horizontal plane is provided in the installation box, and the partition divides the installation box into a driving chamber and a supporting chamber. A lead screw is provided in the installation box, which passes through the partition and is rotatably connected to the inner wall of the installation box at both ends. The lead screw is located in the inner part of the support cavity and is provided with a forward-rotating portion and a reverse-rotating portion with opposite threads. The forward-rotating portion and the reverse-rotating portion are both threadedly connected to a nut seat, and the nut seat is rotatably connected to a connecting rod. A liftable support plate is provided at the bottom of the support cavity, and the connecting rod is rotatably connected to the support plate at one end away from the nut seat. A limit assembly for limiting the rotation of the nut seat and a driving assembly for driving the lead screw to rotate are provided in the installation box. This utility model has the effect of conveniently supporting the civil air defense door when it is in an open state.

[0004] However, there are still some problems. When the door needs to be closed, the door is flipped along the hinge, and the door bolt is pushed along the width direction of the door and contacts the door frame to close the door. However, there is often a large gap between the door and the door frame, and the airtightness is poor. Therefore, a radiation-proof civil defense door is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a radiation-proof civil air defense door, which has the advantage of good sealing and solves the problem of a large gap between the door body and the door frame.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a radiation-proof civil air defense door, comprising a door frame, a hinge block fixed to the front of the door frame, a hinged door hingedly connected to the interior of the hinge block, four stabilizing blocks fixed to the front of the hinged door, and two fixing blocks fixed to the front of the door frame;

[0007] The two top stabilizing blocks and the two bottom stabilizing blocks are internally slidably connected with engaging plates that respectively penetrate the two fixed blocks, and a limiting block is fixed on the side of the engaging plate away from the fixed block. A pushing component is engaged between the two engaging plates, and the pushing component is used to push the engaging plates to move. A radiation-proof door slidably connected to the hinged door is fixed on the back of the pushing component, and a limiting plate is fixed inside the door frame;

[0008] The pushing assembly includes a rotating block, an engaging gear, a moving rod and a pushing block. The rotating block is rotatably connected to the hinged door, the outer surface of the rotating block is fixed to the engaging gear, the meshing gear is engaged with the engaging plate, the interior of the rotating block is threadedly connected to the moving rod, the back side of the moving rod is rotatably connected to the pushing block, and the pushing block is fixed to the radiation-proof door.

[0009] By adopting this technical solution, the graphite layer can effectively prevent radiation from passing through the hinged door, effectively improving the overall radiation protection, while the foam board can effectively improve the thermal insulation, making the whole more practical.

[0010] Furthermore, an annular sealing gasket is fixed to the back of the radiation-proof door, and an annular sealing groove adapted to the annular sealing gasket is formed on the front of the limiting plate.

[0011] By adopting this technical solution, the annular sealing gasket and the annular sealing groove are provided, which can effectively improve the sealing between the radiation-proof door and the door frame, thereby making the whole safer.

[0012] Furthermore, the moving rod is a threaded rod, and a threaded hole adapted to the threaded rod is provided inside the rotating block.

[0013] By adopting this technical solution, through the threaded connection, when the rotating block cannot rotate, the moving rod will move simultaneously due to the squeezing of the thread when it rotates.

[0014] Furthermore, a pushing wheel is fixed on the front of the moving rod, a handle is fixed on the front of the hinged door, and a sponge pad is fixed on the outer surface of the handle.

[0015] Furthermore, sliding blocks are fixed on both the front and rear sides of the engaging plate, and sliding grooves slidably connected to the sliding blocks are formed on both the front and rear sides of the inner cavity of the stabilizing block.

[0016] By adopting this technical solution, the sliding connection between the sliding block and the sliding groove can effectively improve the stability of the movement of the engaging plate, thereby making the whole more durable.

[0017] Furthermore, a tooth block is fixed on the outer surface of the meshing gear, and a tooth block adapted to the tooth block is fixed on opposite sides of the two meshing plates.

[0018] Furthermore, a through hole is opened on the front side of the hinged door, a sealed bearing is fixed in the through hole, and the interior of the sealed bearing is fixed to the rotating block.

[0019] Furthermore, the radiation-proof door includes a cement layer, a graphite layer and a foam plate, the graphite layer is fixed to the foam plate, and the cement layer surrounds the outer surfaces of the graphite layer and the foam plate.

[0020] By adopting this technical solution, the foam board can effectively improve the overall thermal insulation, and the graphite layer can effectively improve the overall radiation protection, thereby making the overall structure safer.

[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0022] 1. The radiation-proof civil air defense door can move the engaging plate by rotating the pushing assembly, so that the engaging plate is inserted into the fixed block on the door frame, thereby completing the fixation of the hinged door. The radiation-proof door can be pushed toward the door frame by rotating the pushing assembly, thereby effectively improving the overall sealing. The overall structure is simple, making the overall safety higher.

[0023] 2. The radiation-proof civil air defense door can effectively prevent radiation from moving to one side of the hinged door through the provided graphite layer, and can effectively improve the overall thermal insulation and sound insulation through the provided foam board. In addition, the pushing component improves the overall sealing, thereby greatly improving the use effect of the graphite layer and the foam board. The overall structure is simple, making the overall structure more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a side view of the connection structure between the door frame and the limiting plate of the utility model;

[0026] Figure 3 This is a three-dimensional diagram of the radiation-proof door structure of the utility model;

[0027] Figure 4 This is a side view of the propulsion assembly structure of the utility model.

[0028] In the figure: 1. Door frame; 2. Hinge block; 3. Hinge door; 4. Stabilizing block; 5. Fixing block; 6. Engaging plate; 7. Limiting block; 8. Pushing assembly; 801. Rotating block; 802. Engaging gear; 803. Moving rod; 804. Pushing block; 9. Radiation-proof door; 901. Cement layer; 902. Graphite layer; 903. Foam board; 10. Limiting plate; 11. Handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-3 In this embodiment, a radiation-proof civil defense door includes a door frame 1, a hinge block 2 is fixed on the front of the door frame 1, a hinged door 3 is hinged inside the hinge block 2, four stabilizing blocks 4 are fixed on the front of the hinged door 3, and two fixing blocks 5 are fixed on the front of the door frame 1.

[0031] In addition, the two top stabilizing blocks 4 and the two bottom stabilizing blocks 4 are internally slidably connected with meshing plates 6 that pass through the two fixed blocks 5 respectively. Sliding blocks are fixed on the front and rear sides of the meshing plates 6. The front and rear sides of the inner cavity of the stabilizing block 4 are provided with sliding grooves that are slidably connected to the sliding blocks. The sliding connection between the sliding blocks and the sliding grooves can effectively improve the stability of the movement of the meshing plates 6, thereby making the whole more durable. A limiting block 7 is fixed on the side of the meshing plate 6 away from the fixed block 5. When the set limiting block 7 contacts the stabilizing block 4, the meshing plate 6 cannot move, thereby preventing the meshing gear 802 from rotating.

[0032] Furthermore, a pushing component 8 is engaged between the two engaging plates 6, and the pushing component 8 is used to push the engaging plates 6 to move. A radiation-proof door 9 slidingly connected to the hinged door 3 is fixed to the back of the pushing component 8. The radiation-proof door 9 includes a cement layer 901, a graphite layer 902 and a foam plate 903. The graphite layer 902 is fixed to the foam plate 903, and the cement layer 901 surrounds the outer surface of the graphite layer 902 and the foam plate 903. The foam plate 903 is provided to effectively improve the overall thermal insulation performance, and the graphite layer 902 is provided to effectively improve the overall radiation protection performance, thereby making the overall safety.

[0033] In addition, a limiting plate 10 is fixed inside the door frame 1, an annular sealing gasket is fixed on the back of the radiation-proof door 9, and an annular sealing groove adapted to the annular sealing gasket is opened on the front of the limiting plate 10. By setting the annular sealing gasket and the annular sealing groove, the sealing between the radiation-proof door 9 and the door frame 1 can be effectively improved, thereby making the overall safety.

[0034] In general, the graphite layer 902 can effectively prevent radiation from passing through the hinged door 3, effectively improving the overall radiation protection, while the foam board 903 can effectively improve the heat preservation, making the whole more practical.

[0035] See also Figure 4 In order to improve the overall sealing performance, the pushing assembly 8 in this embodiment includes a rotating block 801, a meshing gear 802, a moving rod 803 and a pushing block 804. The rotating block 801 is rotatably connected to the hinged door 3. A through hole is opened on the front of the hinged door 3. A sealed bearing is fixed in the through hole. The inside of the sealed bearing is fixed to the rotating block 801. The outer surface of the rotating block 801 is fixed to the meshing gear 802. The meshing gear 802 is meshed with the meshing plate 6. The outer surface of the meshing gear 802 is fixed with a Tooth block, tooth blocks adapted to the tooth blocks are fixed on opposite sides of the two engaging plates 6, the interior of the rotating block 801 is threadedly connected to the moving rod 803, the moving rod 803 is a threaded rod, and a threaded hole adapted to the threaded rod is opened inside the rotating block 801. Through the threaded connection, when the rotating block 801 cannot rotate, the moving rod 803 will move simultaneously due to the extrusion of the thread when it rotates. The back of the moving rod 803 is rotatably connected to the pushing block 804, and the pushing block 804 is fixed to the radiation protection door 9.

[0036] In this embodiment, a push wheel is fixed to the front of the moving rod 803 , a handle 11 is fixed to the front of the hinged door 3 , and a sponge pad is fixed to the outer surface of the handle 11 .

[0037] In general, when the moving rod 803 is rotated, the meshing gear 802 will rotate, thereby pushing the meshing plate 6 to move. When the meshing plate 6 cannot move, the meshing gear 802 and the rotating block 801 will not rotate, so that the moving rod 803 moves due to the extrusion of the thread. The movement of the moving rod 803 and the meshing plate 6 is limited, and the movement of the moving rod 803 and the meshing plate 6 does not affect each other, making the overall structure more stable.

[0038] The working principle of the above embodiment is:

[0039] When the hinged door 3 needs to be closed, the hinged door 3 is pulled to rotate along the hinge block 2, so that the hinged door 3 moves to the inside of the door frame 1. At this time, the rotating rod 803 is rotated to make the moving rod 803 drive the rotating block 801 and the meshing gear 802 to rotate together, so that the meshing gear 802 pushes the two meshing plates 6 to move along the stabilizing block 4 to the inside of the fixed block 5, thereby completing the fixation of the hinged door 3 and the door frame 1. However, because the limit block 7 restricts the movement of the meshing plate 6, the meshing gear 802 meshed with the meshing plate 6 cannot rotate, and the rotating block 801 cannot rotate. At this time, rotating the moving rod 803 can make the moving rod 803 move due to the extrusion of the thread, thereby pushing the radiation-proof door 9 to move, contacting the limiting plate 10, and squeezing and deforming the sealing gasket, thereby effectively improving the overall sealing, so that the graphite layer 902 can play a better radiation-proof effect, making the overall more practical.

Claims

1. A radiation-proof civil air defense door, comprising a door frame (1), characterized in that: A hinge block (2) is fixed on the front of the door frame (1), a hinged door (3) is hinged inside the hinge block (2), four stabilizing blocks (4) are fixed on the front of the hinged door (3), and two fixing blocks (5) are fixed on the front of the door frame (1); The two top stabilizing blocks (4) and the two bottom stabilizing blocks (4) are internally slidably connected with engaging plates (6) respectively penetrating the two fixed blocks (5); a limiting block (7) is fixed on the side of the engaging plate (6) away from the fixed block (5); a pushing component (8) is engaged between the two engaging plates (6); the pushing component (8) is used to push the engaging plate (6) to move; a radiation-proof door (9) slidably connected to the hinged door (3) is fixed on the back of the pushing component (8); and a limiting plate (10) is fixed inside the door frame (1); The pushing assembly (8) comprises a rotating block (801), an engaging gear (802), a moving rod (803) and a pushing block (804); the rotating block (801) is rotatably connected to the hinged door (3); the outer surface of the rotating block (801) is fixed to the engaging gear (802); the engaging gear (802) is engaged with the engaging plate (6); the interior of the rotating block (801) is threadedly connected to the moving rod (803); the back surface of the moving rod (803) is rotatably connected to the pushing block (804); and the pushing block (804) is fixed to the radiation-proof door (9).

2. The radiation-proof civil air defense door according to claim 1, characterized in that: An annular sealing gasket is fixed to the back of the radiation-proof door (9), and an annular sealing groove adapted to the annular sealing gasket is provided on the front of the limiting plate (10).

3. The radiation-proof civil air defense door according to claim 1, characterized in that: The moving rod (803) is a threaded rod, and a threaded hole adapted to the threaded rod is provided inside the rotating block (801).

4. The radiation-proof civil air defense door according to claim 1, characterized in that: A driving wheel is fixed on the front of the moving rod (803), a handle (11) is fixed on the front of the hinged door (3), and a sponge pad is fixed on the outer surface of the handle (11).

5. The radiation-proof civil air defense door according to claim 1, characterized in that: Sliding blocks are fixed on both the front and rear sides of the engaging plate (6), and sliding grooves slidably connected to the sliding blocks are provided on both the front and rear sides of the inner cavity of the stabilizing block (4).

6. The radiation-proof civil air defense door according to claim 1, characterized in that: A tooth block is fixed on the outer surface of the meshing gear (802), and a tooth block adapted to the tooth block is fixed on opposite sides of the two meshing plates (6).

7. The radiation-proof civil air defense door according to claim 1, characterized in that: A through hole is provided on the front of the hinged door (3), a sealed bearing is fixed in the through hole, and the interior of the sealed bearing is fixed to the rotating block (801).

8. The radiation-proof civil air defense door according to claim 1, characterized in that: The radiation-proof door (9) comprises a cement layer (901), a graphite layer (902) and a foam plate (903); the graphite layer (902) and the foam plate (903) are fixed; and the cement layer (901) surrounds the outer surfaces of the graphite layer (902) and the foam plate (903).

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