An anti-seismic base isolation structure for urban underground civil air defense engineering

Abstract

This invention relates to the field of civil defense engineering technology, specifically to a seismic isolation base structure for urban underground civil defense engineering, comprising: a support plate laid on the upper end of several support columns, with a support component detachably installed between each support column and the support plate. The invention installs support components on the upper end of the support columns, buffer components on the upper end of connecting columns, and a support plate laid on the upper end of the support components and buffer components. A sound insulation layer is laid on the upper end of the support plate, and a fireproof layer is laid on the upper end of the sound insulation layer. When the civil defense project is subjected to external force, the support plate buffers the impact by compressing or stretching springs one and two, while a damper quickly restores the support plate to its initial position, thus buffering and reducing vibration on the floor. The tensioning component facilitates the disassembly and assembly of springs one and two, and the fixed plate and base plate facilitate the disassembly and assembly of the damper, making it more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of civil defense engineering technology, specifically to a seismic isolation base structure for urban underground civil defense engineering. Background Technology

[0002] Civil air defense projects, also known as civil defense works, refer to underground protective buildings constructed separately to ensure the shelter of personnel and materials, civil air defense command, and medical rescue during wartime, as well as basements built in conjunction with above-ground buildings that can be used for air defense during wartime. Civil defense projects are important facilities for preventing sudden enemy attacks, effectively sheltering personnel and materials, and preserving war potential; they are engineering guarantees for persisting in urban combat and supporting the anti-aggression war until victory.

[0003] For example, Chinese patent CN216810397U discloses a vibration isolation device for civil defense engineering installation, including an upper vibration damping plate and a lower vibration damping plate below the upper vibration damping plate. A support component and a stabilizing component are provided between the upper and lower vibration damping plates. The top and bottom ends of the stabilizing component are fixedly connected to the lower and upper surfaces of the upper vibration damping plate, respectively. By setting the stabilizing component fixed between the upper and lower vibration damping plates and the support component fixed to the upper and lower ends of the stabilizing component, the upper vibration damping plate can be kept stable when subjected to vibration. When the vibration is low, the fixed upper and lower vibration damping plates can remain in their original shape. When the upper vibration damping plate is compressed, the lower surfaces on both sides of the upper vibration damping plate will slightly deform and press against the stabilizing component.

[0004] However, traditional seismic isolation devices have a relatively simple structure and are often a single unit. When some areas are damaged, the entire unit must be replaced, which is inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a seismic isolation base structure for urban underground civil defense projects, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a seismic isolation base structure for urban underground civil defense projects, comprising: a support plate laid on the upper end of several support columns, a support component detachably installed between each support column and the support plate, a connecting column fixedly installed between two adjacent support columns, and a buffer component detachably installed between the connecting column and the support plate;

[0007] The supporting component includes a spring, a fixed plate, a base plate, and a damper. One end of the damper is rotatably connected to the fixed plate via a rotating block, and the other end of the damper is rotatably connected to a circular plate via the rotating block. A circular arc cylinder is fixedly installed at the lower end of the circular plate, and a sphere is rotatably sleeved inside the circular arc cylinder. The sphere is fixed to the upper end of the base plate via a cylinder.

[0008] The buffer component includes a limiting plate 1, a spring 2, and a limiting plate 2. The limiting plate 1 is threaded onto the upper end of the connecting column. A telescopic rod is fixedly installed between the limiting plate 1 and the limiting plate 2. The outer end of the telescopic rod is sleeved with the spring 2. The upper end of the limiting plate 2 is rotatably connected to an arc-shaped seat through a ball 2. A fixing plate 2 is fixedly installed at the end of the arc-shaped seat away from the ball 2.

[0009] Preferably, the support plate is provided with several pieces, and a docking block is fixedly installed at one end of each support plate, and a docking groove is opened at the other end. Both the docking block and the docking groove are in the shape of an isosceles trapezoid. When two adjacent support plates are spliced ​​together, the docking block slides into the docking groove.

[0010] Preferably, both the fixing plate and the base plate have several bolt holes on their side walls. The fixing plate is fixed to the lower end of the support plate by bolts, and the base plate is fixed to the upper end of the support column by bolts. The fixing plate has a first insertion hole in the middle, and the base plate has a second insertion hole in the middle.

[0011] Preferably, both the upper and lower ends of the spring are fixedly connected to a base, and a protrusion is fixedly installed on the side of the base that is far apart from each other. One base abuts against one side of the fixing plate and the protrusion is inserted into the insertion hole one. The other base abuts against one side of the base plate and the protrusion is inserted into the insertion hole two.

[0012] Preferably, each of the bases has several fixing rings fixedly installed at its outer end, and a tensioning component is detachably installed between two fixing rings in the vertical direction.

[0013] Preferably, the tensioning component includes a threaded cylinder, a threaded rod, and a hook. One end of the threaded rod is inserted into the threaded cylinder and threadedly connected to the inner wall of the threaded cylinder. The other end of the threaded rod is fixedly mounted with a hook. The end of the threaded cylinder away from the threaded rod is rotatably connected to the hook via a bearing. The two hooks are respectively hooked into two fixed rings in the vertical direction. A nut is fixedly connected to the outer wall of the threaded cylinder.

[0014] Preferably, a connecting plate is fixedly installed at one end of the connecting column, and the two ends of the connecting plate are respectively fixedly connected to the bottom ends of the two support columns. The connecting plate, the support columns and the connecting column are integrally formed.

[0015] Preferably, a threaded sleeve is pre-embedded at the other end of the connecting column, a threaded column is fixedly installed at the lower end of the limiting plate, a driving block is fixedly installed at the outer end of the threaded column, and the lower end of the threaded column is threadedly connected to the inner wall of the threaded sleeve.

[0016] Preferably, one end of the second spring is fixedly connected to the first limiting plate, and the other end is fixedly connected to the second limiting plate. Several ear plates are fixedly installed on the outer ends of both the first and second limiting plates. A hanging plate is vertically fixedly installed on one end of the ear plate. A tensioning component is detachably installed between the two hanging plates in the vertical direction. A cylinder is fixedly installed at the center of the upper end of the second limiting plate. A ball is fixedly installed on the upper end of the cylinder. The ball is inserted into the arc-shaped seat. The second fixing plate is fixed to the lower end of the support plate by bolts.

[0017] Preferably, a sound insulation layer is laid on the upper end of several of the support plates, and a fireproof layer is laid on the upper end of the sound insulation layer.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention involves fixing support columns and connecting columns at intervals at the bottom of the underground civil defense shelter. Support components are installed on the upper ends of the support columns, and buffer components are installed on the upper ends of the connecting columns. A support plate is laid on the upper ends of the support components and buffer components, a sound insulation layer is laid on the upper end of the support plate, and a fireproof layer is laid on the upper end of the sound insulation layer. When the civil defense structure is subjected to external forces, the support plate buffers the impact by compressing or stretching springs one and two. At the same time, the damper quickly restores the support plate to its initial position, thus buffering and reducing vibration on the floor. The tensioning components facilitate the disassembly and assembly of springs one and two, and the fixed plate one and the base plate facilitate the disassembly and assembly of the damper, making it more convenient to use. Attached Figure Description

[0020] Figure 1 This is a right view of the overall structure of the present invention;

[0021] Figure 2 This is a left view of the support plate of the present invention when it is connected;

[0022] Figure 3 This is a bottom view of the overall structure of the present invention;

[0023] Figure 4 This is a schematic diagram showing the connection between the support column and the connecting column of the present invention;

[0024] Figure 5 This is an exploded view of the support component of the present invention;

[0025] Figure 6 This is a schematic diagram of the buffer component structure of the present invention;

[0026] Figure 7 This is a bottom view of the buffer component of the present invention.

[0027] In the diagram: 1. Support column; 2. Spring 1; 3. Base; 4. Protrusion; 5. Fixing ring; 6. Fixing plate 1; 7. Insertion hole 1; 8. Rotating block; 9. Base plate; 10. Insertion hole 2; 11. Cylinder 1; 12. Sphere 1; 13. Damper; 14. Circular plate; 15. Arc cylinder; 16. Threaded cylinder; 17. Threaded rod; 18. Nut; 19. Hook; 20. Connecting plate; 21. Connecting column; 22. Threaded sleeve; 23. Threaded column; 24. Drive block; 25. Limiting plate 1; 26. Spring 2; 27. Limiting plate 2; 28. Telescopic rod; 29. ​​Ear plate; 30. Hanging plate; 31. Cylinder 2; 32. Sphere 2; 33. Fixing plate 2; 34. Arc-shaped seat; 35. Support plate; 36. Connecting groove; 37. Connecting block; 38. Sound insulation layer; 39. Fireproof layer. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Please see Figures 1 to 7 This invention provides a technical solution: a seismic isolation base structure for urban underground civil defense projects, comprising: a support plate 35 laid on the upper end of several support columns 1, a support component detachably installed between each support column 1 and the support plate 35 for supporting the support plate 35, the support plate 35 having several blocks, each support plate 35 having a connecting block 37 fixedly installed at one end and a connecting groove 36 opened at the other end, both the connecting block 37 and the connecting groove 36 being in the shape of an isosceles trapezoid, and when two adjacent support plates 35 are spliced ​​together, the connecting... Block 37 slides into the docking groove 36 to initially limit the two adjacent support plates 35. A connecting column 21 is fixedly installed between the two adjacent support columns 1. A connecting plate 20 is fixedly installed at one end of the connecting column 21. The two ends of the connecting plate 20 are fixedly connected to the bottom ends of the two support columns 1 respectively. The connecting plate 20, support columns 1 and connecting column 21 are integrally formed to fix the connecting column 21 between the two support columns 1. A buffer component is detachably installed between the connecting column 21 and the support plate 35 to buffer the vibration of the support plate 35.

[0030] The supporting components include a spring 2, a fixed plate 6, a base plate 9, and a damper 13. One end of the damper 13 is rotatably connected to the fixed plate 6 via a rotating block 8, allowing the damper 13 to rotate at the lower end of the fixed plate 6. The other end of the damper 13 is rotatably connected to a circular plate 14 via the rotating block 8, allowing the damper 13 to rotate at the upper end of the circular plate 14. A circular arc cylinder 15 is fixedly installed at the lower end of the circular plate 14, and a sphere 12 is rotatably fitted inside the circular arc cylinder 15. The sphere 12 is fixed to the upper end of the base plate 9 via a cylinder 11. The circular plate 14 and the damper 13 can rotate arbitrarily at the upper end of the base plate 9 via the circular arc cylinder 15 and the sphere 12.

[0031] Several bolt holes are provided on the side walls of the fixing plate 6 and the base plate 9. The fixing plate 6 is fixed to the lower end of the support plate 35 by bolts, and the base plate 9 is fixed to the upper end of the support column 1 by bolts. The fixing plate 6 has a first insertion hole 7 in the middle, and the base plate 9 has a second insertion hole 10 in the middle. The upper and lower ends of the spring 2 are fixedly connected to the base 3. The opposite sides of the base 3 are fixedly installed with protrusions 4. One base 3 abuts against one side of the fixing plate 6 and the protrusion 4 is inserted into the first insertion hole 7. The other base 3 abuts against one side of the base plate 9 and the protrusion 4 is inserted into the second insertion hole 10. The spring 2 and the damper 13 support the support plate 35. By removing the fixing plate 6 and the base plate 9, it is convenient to disassemble and replace the damper 13 and the spring 2.

[0032] Each base 3 has several fixing rings 5 ​​fixedly installed on its outer end. A tensioning component is detachably installed between two fixing rings 5 ​​in the vertical direction. The tensioning component includes a threaded cylinder 16, a threaded rod 17, and a hook 19. One end of the threaded rod 17 is inserted into the threaded cylinder 16 and threadedly connected to the inner wall of the threaded cylinder 16. The other end of the threaded rod 17 is fixedly installed with a hook 19. The end of the threaded cylinder 16 away from the threaded rod 17 is rotatably connected to the hook 19 through a bearing. The two hooks 19 are respectively hooked into the two fixing rings 5 ​​in the vertical direction. A nut 18 is fixedly connected to the outer wall of the threaded cylinder 16. By rotating the nut 18, the threaded cylinder 16 is driven to rotate. The threaded cylinder 16 rotates at the outer end of the threaded rod 17, which retracts the two bases 3 and compresses the spring 2, allowing the protrusion 4 to move out of the insertion hole 7 or insertion hole 10, making it easy to install and remove the spring 2. After the spring 2 is installed, the tensioning component is removed.

[0033] The buffer component includes a first limiting plate 25, a second spring 26, and a second limiting plate 27. The first limiting plate 25 is threaded onto the upper end of the connecting post 21. A threaded sleeve 22 is pre-embedded at the other end of the connecting post 21. A threaded post 23 is fixedly installed at the lower end of the first limiting plate 25. A driving block 24 is fixedly installed at the outer end of the threaded post 23. The lower end of the threaded post 23 is threadedly connected to the inner wall of the threaded sleeve 22, facilitating the disassembly and assembly of the first limiting plate 25. A telescopic rod 28 is fixedly installed between the first limiting plate 25 and the second limiting plate 27. One end of the telescopic rod 28 is fixed to the side wall of the first limiting plate 25, and the other end is fixed to the side wall of the second limiting plate 27. The outer end of the telescopic rod 28 is sleeved with the second spring 26. One end is fixedly connected to the first limiting plate 25, and the other end is fixedly connected to the second limiting plate 27. The upper end of the second limiting plate 27 is rotatably connected to the arc-shaped seat 34 through the second ball 32. The center of the upper end of the second limiting plate 27 is fixedly installed with the second cylinder 31, and the upper end of the second cylinder 31 is fixedly installed with the second ball 32. The second ball 32 is inserted into the arc-shaped seat 34. The end of the arc-shaped seat 34 away from the second ball 32 is fixedly installed with the second fixing plate 33. The second fixing plate 33 is fixed to the lower end of the support plate 35 by bolts. The second spring 26 plays the role of supporting the support plate 35 and can rotate arbitrarily at the lower end of the arc-shaped seat 34. When the support plate 35 is subjected to external force vibration, the second spring 26 buffers the support plate 35.

[0034] Several ear plates 29 are fixedly installed on the outer ends of the first limiting plate 25 and the second limiting plate 27. A hanging plate 30 is fixedly installed vertically on one end of the ear plate 29. A tensioning component is detachably installed between the two hanging plates 30 in the vertical direction. Through the tensioning component, the second ball 32 can be pulled out of the outer end of the arc-shaped seat 34, which facilitates the disassembly and assembly of the second spring 26.

[0035] An inspection door can be installed on one side of the support plate 35 to facilitate staff to enter between the support column 1, the connecting column 21 and the support plate 35 to inspect the internal components. A sound insulation layer 38 is laid on the upper end of several support plates 35, and a fireproof layer 39 is laid on the upper end of the sound insulation layer 38, so that the floor of the civil defense project has the functions of fireproofing and sound insulation.

[0036] When this device is in operation, support columns 1 and connecting columns 21 are fixedly installed at intervals at the bottom of the underground civil defense basement. Support components are installed on the upper end of support columns 1, and buffer components are installed on the upper end of connecting columns 21. Support plates 35 are laid on the upper ends of support components and buffer components, sound insulation layers 38 are laid on the upper end of support plates 35, and fireproof layers 39 are laid on the upper end of sound insulation layers 38. When the civil defense project is subjected to external forces, the support plates 35 buffer the impact by compressing or stretching springs 2 and 26. At the same time, the damper 13 quickly restores the support plates 35 to their initial position, buffering and reducing vibration on the floor. The tensioning components facilitate the disassembly and assembly of springs 2 and 26, and the fixed plates 6 and 9 facilitate the disassembly and assembly of the damper 13.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0038] 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.

Claims

1. An anti-seismic base isolation structure for urban underground civil air defense projects, comprising: The support plate (35) laid on the upper end of several support columns (1) is characterized in that: a support component is detachably installed between each support column (1) and the support plate (35), a connecting column (21) is fixedly installed between two adjacent support columns (1), and a buffer component is detachably installed between the connecting column (21) and the support plate (35). The supporting components include a spring (2), a fixed plate (6), a base plate (9), and a damper (13). One end of the damper (13) is rotatably connected to the fixed plate (6) via a rotating block (8), and the other end of the damper (13) is rotatably connected to a circular plate (14) via a rotating block (8). A circular arc cylinder (15) is fixedly installed at the lower end of the circular plate (14), and a sphere (12) is rotatably sleeved inside the circular arc cylinder (15). The sphere (12) is fixed to the upper end of the base plate (9) via a cylinder (11). The buffer component includes a limiting plate one (25), a spring two (26) and a limiting plate two (27). The limiting plate one (25) is threaded onto the upper end of the connecting column (21). A telescopic rod (28) is fixedly installed between the limiting plate one (25) and the limiting plate two (27). The outer end of the telescopic rod (28) is sleeved with the spring two (26). The upper end of the limiting plate two (27) is rotatably connected to an arc-shaped seat (34) through a ball two (32). A fixing plate two (33) is fixedly installed at the end of the arc-shaped seat (34) away from the ball two (32). The side walls of the fixing plate (6) and the bottom plate (9) are provided with several bolt holes. The fixing plate (6) is fixed to the lower end of the support plate (35) by bolts, and the bottom plate (9) is fixed to the upper end of the support column (1) by bolts. The fixing plate (6) has a first insertion hole (7) in the middle, and the bottom plate (9) has a second insertion hole (10) in the middle. The upper and lower ends of the spring (2) are fixedly connected to bases (3). The bases (3) are fixedly installed with protrusions (4) on the opposite sides. One base (3) abuts against one side of the fixed plate (6) and the protrusion (4) is inserted into the first insertion hole (7). The other base (3) abuts against one side of the base plate (9) and the protrusion (4) is inserted into the second insertion hole (10). Each of the bases (3) has several fixing rings (5) fixedly installed at its outer end, and a tensioning component is detachably installed between two fixing rings (5) in the vertical direction; The second fixing plate (33) is fixed to the lower end of the support plate (35) by bolts.

2. The anti-seismic base isolation structure for urban underground civil defense projects according to claim 1, characterized in that: The support plate (35) is provided with several pieces. Each support plate (35) has a docking block (37) fixedly installed at one end and a docking groove (36) opened at the other end. Both the docking block (37) and the docking groove (36) are in the shape of an isosceles trapezoid. When two adjacent support plates (35) are spliced ​​together, the docking block (37) slides into the docking groove (36).

3. The anti-seismic base isolation structure for urban underground civil defense projects according to claim 2, characterized in that: The tensioning component includes a threaded cylinder (16), a threaded rod (17), and a hook (19). One end of the threaded rod (17) is inserted into the threaded cylinder (16) and threadedly connected to the inner wall of the threaded cylinder (16). The other end of the threaded rod (17) is fixedly installed with a hook (19). The end of the threaded cylinder (16) away from the threaded rod (17) is rotatably connected to the hook (19) through a bearing. The two hooks (19) are respectively hooked into two fixed rings (5) in the vertical direction. The outer wall of the threaded cylinder (16) is fixedly connected with a nut (18).

4. The anti-seismic base isolation structure for urban underground civil defense projects according to claim 1, characterized in that: A connecting plate (20) is fixedly installed at one end of the connecting column (21). The two ends of the connecting plate (20) are fixedly connected to the bottom ends of the two support columns (1) respectively. The connecting plate (20), the support column (1) and the connecting column (21) are integrally formed.

5. The anti-seismic base isolation structure for urban underground civil defense projects according to claim 1, characterized in that: The other end of the connecting column (21) is pre-embedded with a threaded sleeve (22), and the lower end of the limiting plate (25) is fixedly installed with a threaded column (23). The outer end of the threaded column (23) is fixedly installed with a driving block (24), and the lower end of the threaded column (23) is threadedly connected to the inner wall of the threaded sleeve (22).

6. The anti-seismic base isolation structure for urban underground civil defense projects according to claim 1, characterized in that: One end of the second spring (26) is fixedly connected to the first limiting plate (25), and the other end is fixedly connected to the second limiting plate (27). Several ear plates (29) are fixedly installed on the outer ends of the first limiting plate (25) and the second limiting plate (27). A hanging plate (30) is fixedly installed vertically on one end of the ear plate (29). A tensioning component is detachably installed between the two hanging plates (30) in the vertical direction. A cylinder (31) is fixedly installed at the center of the upper end of the second limiting plate (27). A ball (32) is fixedly installed at the upper end of the cylinder (31). The ball (32) is inserted into the arc-shaped seat (34).

7. The seismic isolation base structure for urban underground civil defense projects according to claim 1, characterized in that: A sound insulation layer (38) is laid on the upper end of several of the support plates (35), and a fireproof layer (39) is laid on the upper end of the sound insulation layer (38).

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