Perpendicularity adjusting device for civil air defense door frame
By designing support adjustment and positioning components, and utilizing hydraulic rods and rotating frame structures, automatic and rapid adjustment of the civil defense door frame is achieved, solving the problem of cumbersome adjustment in traditional devices and improving construction efficiency and installation quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional air defense door frame installation devices are cumbersome and inaccurate in adjusting verticality, resulting in low construction efficiency and difficulty in meeting the installation requirements of air defense door frames of different heights and widths, thus posing potential quality risks.
It adopts support adjustment components and positioning components, and uses hydraulic rods and rotating frame structure to realize automatic and rapid adjustment of the civil defense door frame. It is fixed by expansion bolts to adapt to civil defense door frames of different specifications and widths.
It enables rapid and automatic adjustment of the verticality of the civil defense door frame, improving construction efficiency, ensuring installation quality and adaptability, and reducing potential quality risks.
Smart Images

Figure CN224063859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adjustment device technology, and in particular to a verticality adjustment device for a civil defense door frame. Background Technology
[0002] Civil defense engineering is receiving increasing attention in public and residential building projects, and civil defense doors are a crucial component. The smooth installation, flexible opening, and airtightness of the door panels are paramount. This necessitates precise adjustments to the verticality of the door frame during the initial construction phase, ensuring no deformation occurs during concrete pouring. Inaccurate installation and verticality adjustments of the door frame in the early stages severely impact subsequent installation and project acceptance.
[0003] Civil defense projects place high demands on the quality of civil defense doors, involving complex construction techniques and requiring a high degree of precision. Furthermore, the height, width, and model of civil defense doors vary across different projects. Traditional installation methods require steel pipes or angle irons to support the upper corners of the door frame when installing doors of varying heights and widths. This is inconvenient, cumbersome, and difficult to adjust for verticality. It also leads to low worker efficiency and can easily result in potential quality issues later on. Utility Model Content
[0004] The purpose of this utility model is to provide a verticality adjustment device for civil defense door frames to solve the problems mentioned in the background art.
[0005] A verticality adjustment device for a civil defense door frame includes: a support adjustment assembly for adjusting the verticality of the main body of the civil defense door frame, the support adjustment assembly including a horizontal fixing plate and a horizontal abutment plate, the horizontal abutment plate being snapped and fixed to the top inner wall of the main body of the civil defense door frame, two symmetrical first hydraulic rods being rotatably arranged on the upper surface of the horizontal fixing plate, the telescopic ends of the first hydraulic rods being rotatably connected to the surface of the horizontal abutment plate, two symmetrical second hydraulic rods being rotatably arranged on the back of the horizontal fixing plate, each of the telescopic ends of the two second hydraulic rods being rotatably arranged with an L-shaped clamping plate, and the inner wall of the L-shaped clamping plate being snapped with the bottom crossbeam of the main body of the civil defense door frame; and a positioning assembly for fixing the horizontal abutment plate inside the main body of the civil defense door frame.
[0006] Preferably, the surface of the transverse fixing plate is fixed with four mounting angle irons in a rectangular array, and each of the four mounting angle irons is provided with expansion bolts.
[0007] Preferably, a first rotating frame corresponding to the first hydraulic rod is fixedly provided on the surface of the transverse fixed plate, a first rotating shaft is rotatably provided on the inner wall of the first rotating frame, a first rotating block is fixedly provided on the surface of the first rotating shaft, and the end of the first rotating block is fixedly connected to the bottom end of the first hydraulic rod.
[0008] Furthermore, a second rotating frame corresponding to the first hydraulic rod is fixedly provided on the surface of the transverse abutment plate. A second rotating shaft is rotatably provided on the inner wall of the second rotating frame. A second rotating block is fixedly provided on the surface of the second rotating shaft. The end of the second rotating block is fixedly connected to the telescopic end of the first hydraulic rod.
[0009] Furthermore, a third rotating frame corresponding to the second hydraulic rod is fixedly provided on the back of the transverse fixing plate. A third rotating shaft is rotatably provided on the inner wall of the third rotating frame. A third rotating block is fixedly provided on the surface of the third rotating shaft. The end of the third rotating block is fixedly connected to the bottom end of the second hydraulic rod.
[0010] Furthermore, a fourth rotating frame is fixedly provided on the surface of the L-shaped card plate, and a fourth rotating shaft is rotatably provided on the inner wall of the fourth rotating frame. A fourth rotating block is fixedly provided on the surface of the fourth rotating shaft, and the end of the fourth rotating block is fixedly connected to the telescopic end of the second hydraulic rod.
[0011] Preferably, the positioning component includes two rectangular cavities symmetrically opened at both ends of the transverse abutment plate, and an installation cavity opened inside the transverse abutment plate. Rectangular telescopic rods are slidably arranged on the inner walls of the two rectangular cavities, and rectangular inserts are fixed at the ends of the rectangular telescopic rods. A rectangular insertion groove adapted to the rectangular insert is opened on the inner wall of the main body of the air defense door frame.
[0012] Furthermore, the inner wall of the rectangular cavity is rotatably provided with a bidirectional threaded column that penetrates the mounting cavity and extends into the interior of another rectangular cavity, and the ends of the two rectangular telescopic rods are provided with cylindrical threaded grooves that are threadedly connected to the outer surface of the bidirectional threaded column. A limiting block is fixedly provided on the end surface of the rectangular telescopic rod, and the upper surface of the transverse abutment plate is provided with a strip-shaped limiting opening that extends into the interior of the rectangular cavity and is slidably connected to the surface of the limiting block.
[0013] Furthermore, the upper surface of the transverse abutment plate is rotatably provided with a vertical rod extending into the installation cavity, and the top end of the vertical rod is fixed with a rotating rudder. The bottom end of the vertical rod and the surface of the bidirectional threaded column are both fixed with mutually meshing bevel gears.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] Firstly, this utility model, by setting up a support adjustment component, allows the horizontal fixing plate to be pre-fixed to the concrete ground using expansion bolts during actual use. Then, according to the actual situation, two first hydraulic rods and two second hydraulic rods are activated respectively. The extension and retraction of the first hydraulic rods adjusts the angle of the top of the air-raid shelter door frame, and the extension and retraction of the second hydraulic rods adjusts the angle of the bottom of the air-raid shelter door frame, thereby achieving automatic and rapid adjustment of the verticality of the air-raid shelter door frame. It is highly practical and effectively improves work efficiency.
[0016] Secondly, this utility model, by setting a positioning component, can first rotate the rotating rudder to drive the vertical rod to rotate before installing the horizontal fixing plate. The rotation of the vertical rod, under the action of two bevel gears, drives the bidirectional threaded column to rotate. The rotation of the bidirectional threaded column drives the two rectangular telescopic rods to extend outward simultaneously, thereby driving the rectangular insert block to insert into the rectangular insertion groove in the inner wall of the main body of the air-raid shelter door frame, realizing the effective fixing of the horizontal abutment plate. This allows the horizontal abutment plate to adapt to air-raid shelter door frames of different widths, and thus enables the device to adjust the verticality of air-raid shelter door frames of different widths. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of one embodiment of the present utility model;
[0018] Figure 2 This is a side view of one embodiment of the present invention.
[0019] Figure 3 This is a schematic cross-sectional view of the transverse clamping plate according to an embodiment of the present invention.
[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.
[0021] In the diagram: 100, Support and adjustment assembly; 101, Horizontal fixing plate; 102, Horizontal clamping plate; 103, First hydraulic rod; 104, Second hydraulic rod; 105, L-shaped clamping plate; 106, Mounting angle iron; 107, Expansion bolt; 108, First rotating frame; 109, First rotating shaft; 1010, First rotating block; 1011, Second rotating frame; 1012, Second rotating shaft; 1013, Second rotating block; 1014, Third rotating frame; 1015, ... Three rotating shafts; 1016, Third rotating block; 1017, Fourth rotating frame; 1018, Fourth rotating shaft; 1019, Fourth rotating block; 200, Main body of the air-raid shelter door frame; 300, Positioning assembly; 301, Rectangular telescopic rod; 302, Rectangular insert block; 303, Rectangular insertion slot; 304, Bidirectional threaded column; 305, Columnar threaded groove; 306, Limiting block; 307, Strip-shaped limiting opening; 308, Vertical rod; 309, Rotating rudder; 3010, Bevel gear. Detailed Implementation
[0022] The following will describe specific embodiments and appendices. Figure 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0023] A verticality adjustment device for a civil defense door frame includes: a support adjustment assembly 100, which is used to adjust the verticality of the civil defense door frame body 200. The support adjustment assembly 100 includes a horizontal fixing plate 101 and a horizontal abutment plate 102. The horizontal abutment plate 102 is snapped and fixed to the top inner wall of the civil defense door frame body 200. Two symmetrical first hydraulic rods 103 are rotatably arranged on the upper surface of the horizontal fixing plate 101. The telescopic ends of the first hydraulic rods 103 are rotatably connected to the surface of the horizontal abutment plate 102. Two symmetrical second hydraulic rods 104 are rotatably arranged on the back of the horizontal fixing plate 101. The telescopic ends of the two second hydraulic rods 104 are rotatably provided with L-shaped clamping plates 105, and the inner wall of the L-shaped clamping plates 105 is snapped with the bottom crossbeam of the civil defense door frame body 200.
[0024] Positioning component 300 is used to fix the transverse clamping plate 102 inside the body 200 of the civil defense door frame.
[0025] Reference Figure 1 and Figure 4 In a preferred embodiment, the surface of the transverse fixing plate 101 is fixed with four mounting angle irons 106 in a rectangular array, and each of the four mounting angle irons 106 is provided with an expansion bolt 107.
[0026] Specifically, by installing angle iron 106 and expansion bolts 107, the transverse fixing plate 101 can be effectively fixed to the concrete ground.
[0027] Reference Figure 1 and Figure 3 In a preferred embodiment, a first rotating frame 108 corresponding to the first hydraulic rod 103 is fixedly provided on the surface of the transverse fixing plate 101. A first rotating shaft 109 is rotatably provided on the inner wall of the first rotating frame 108. A first rotating block 1010 is fixedly provided on the surface of the first rotating shaft 109, and the end of the first rotating block 1010 is fixedly connected to the bottom end of the first hydraulic rod 103.
[0028] Specifically, by setting the first rotating frame 108, it is convenient for the bottom end of the first hydraulic rod 103 to be rotatably connected to the surface of the transverse fixed plate 101.
[0029] Reference Figure 1 and Figure 3 In a preferred embodiment, a second rotating frame 1011 corresponding to the first hydraulic rod 103 is fixedly provided on the surface of the transverse abutment plate 102. A second rotating shaft 1012 is rotatably provided on the inner wall of the second rotating frame 1011. A second rotating block 1013 is fixedly provided on the surface of the second rotating shaft 1012. The end of the second rotating block 1013 is fixedly connected to the telescopic end of the first hydraulic rod 103.
[0030] Specifically, by setting a second rotating frame 1011, the telescopic end of the first hydraulic rod 103 can be rotatably connected to the surface of the transverse abutment plate 102.
[0031] Reference Figure 1 and Figure 3 In a preferred embodiment, a third rotating frame 1014 corresponding to the second hydraulic rod 104 is fixedly provided on the back of the transverse fixed plate 101. A third rotating shaft 1015 is rotatably provided on the inner wall of the third rotating frame 1014. A third rotating block 1016 is fixedly provided on the surface of the third rotating shaft 1015. The end of the third rotating block 1016 is fixedly connected to the bottom end of the second hydraulic rod 104.
[0032] Specifically, by setting a third rotating frame 1014, the bottom of the second hydraulic rod 104 can be rotatably connected to the surface of the transverse fixed plate 101.
[0033] Reference Figure 1 and Figure 3 In a preferred embodiment, a fourth rotating frame 1017 is fixedly provided on the surface of the L-shaped card plate 105, and a fourth rotating shaft 1018 is rotatably provided on the inner wall of the fourth rotating frame 1017. A fourth rotating block 1019 is fixedly provided on the surface of the fourth rotating shaft 1018, and the end of the fourth rotating block 1019 is fixedly connected to the telescopic end of the second hydraulic rod 104.
[0034] Specifically, by setting a fourth rotating frame 1017, the telescopic end of the second hydraulic rod 104 can be rotatably connected to the surface of the L-shaped card plate 105.
[0035] This invention, by setting up a support adjustment component 100, allows the device to pre-fix the horizontal fixing plate 101 to the concrete ground using expansion bolts 107 during actual use. Then, according to the actual situation, two first hydraulic rods 103 and two second hydraulic rods 104 are activated respectively. The extension and retraction of the first hydraulic rods 103 adjusts the angle of the top of the air-raid shelter door frame 200, and the extension and retraction of the second hydraulic rods 104 adjusts the angle of the bottom of the air-raid shelter door frame 200. This achieves automatic and rapid adjustment of the verticality of the air-raid shelter door frame 200, which is highly practical and effectively improves work efficiency.
[0036] Reference Figure 1 and Figure 3 In a preferred embodiment, the positioning component 300 includes two rectangular cavities symmetrically opened at both ends of the transverse abutment plate 102, and an installation cavity opened inside the transverse abutment plate 102. A rectangular telescopic rod 301 is slidably arranged on the inner wall of each of the two rectangular cavities. A rectangular insert block 302 is fixedly provided at the end of the rectangular telescopic rod 301. A rectangular insertion groove 303 adapted to the rectangular insert block 302 is opened on the inner wall of the air defense door frame body 200.
[0037] Specifically, by setting up a rectangular telescopic rod 301 and a rectangular insert 302, the rectangular telescopic rod 301 can extend and retract to drive the rectangular insert 302 into the rectangular insertion slot 303, thereby achieving effective clamping and fixing of the transverse clamping plate 102 to the inner wall of the air-raid shelter door frame.
[0038] Reference Figure 1 and Figure 3 In a preferred embodiment, the inner wall of the rectangular cavity is rotatably provided with a bidirectional threaded post 304 that penetrates the mounting cavity and extends into the interior of another rectangular cavity, and the ends of the two rectangular telescopic rods 301 are provided with cylindrical threaded grooves 305 that are threadedly connected to the outer surface of the bidirectional threaded post 304. The end surface of the rectangular telescopic rods 301 is fixedly provided with a limiting block 306, and the upper surface of the transverse abutment plate 102 is provided with a strip-shaped limiting opening 307 that extends into the interior of the rectangular cavity and is slidably connected to the surface of the limiting block 306.
[0039] Specifically, by setting a bidirectional threaded post 304, the rotation of the bidirectional threaded post 304 can drive the two rectangular telescopic rods 301 to extend and retract automatically.
[0040] Reference Figure 1 and Figure 3 In a preferred embodiment, a vertical rod 308 extending into the mounting cavity is rotatably provided on the upper surface of the transverse abutment plate 102, and a rotating rudder 309 is fixedly provided at the top end of the vertical rod 308. The bottom end of the vertical rod 308 and the surface of the bidirectional threaded column 304 are both fixedly provided with bevel gears 3010 that mesh with each other.
[0041] Specifically, by setting two bevel gears 3010, the rotation of the rotating rudder 309 can drive the bidirectional threaded column 304 to rotate.
[0042] In this invention, by setting a positioning component 300, before installing the horizontal fixing plate 101, the rotating rudder 309 can be rotated to drive the vertical rod 308 to rotate. The rotation of the vertical rod 308, under the action of two bevel gears 3010, drives the bidirectional threaded column 304 to rotate. The rotation of the bidirectional threaded column 304 drives the two rectangular telescopic rods 301 to extend outward simultaneously, thereby driving the rectangular insert 302 to insert into the rectangular insertion groove 303 on the inner wall of the air-raid shelter door frame body 200, thus effectively fixing the horizontal abutment plate 102. This allows the horizontal abutment plate 102 to adapt to air-raid shelter door frames of different widths, and thus enables the device to adjust the verticality of air-raid shelter door frame bodies 200 of different widths.
[0043] Working Principle: In actual use, this device can pre-fix the horizontal fixing plate 101 to the concrete ground using expansion bolts 107. Then, according to the actual situation, the two first hydraulic rods 103 and the two second hydraulic rods 104 are activated respectively. The extension and retraction of the first hydraulic rods 103 adjusts the angle of the top of the air-raid shelter door frame 200, and the extension and retraction of the second hydraulic rods 104 adjusts the angle of the bottom of the air-raid shelter door frame 200. This achieves automatic and rapid adjustment of the verticality of the air-raid shelter door frame 200, making it highly practical and effectively improving work efficiency. Moreover, the installation of the horizontal fixing plate 101... Previously, the rotating rudder 309 could be rotated to drive the vertical rod 308 to rotate. The rotation of the vertical rod 308, under the action of the two bevel gears 3010, would drive the bidirectional threaded column 304 to rotate. The rotation of the bidirectional threaded column 304 would drive the two rectangular telescopic rods 301 to extend outward at the same time, thereby driving the rectangular insert 302 to insert into the rectangular insertion groove 303 on the inner wall of the air defense door frame body 200, thus effectively fixing the transverse clamping plate 102. This would allow the transverse clamping plate 102 to adapt to air defense door frames of different widths, thereby enabling the device to adjust the verticality of the air defense door frame body 200 of different widths.
[0044] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.
[0045] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.
[0046] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A verticality adjusting device for a civil air defense door frame, characterized in that, Include: Support adjustment assembly for adjusting the verticality of the door frame body, the support adjustment assembly includes a transverse fixed plate and a transverse clamping plate, the transverse clamping plate is clamped and fixed in the top inner wall of the door frame body, the upper surface of the transverse fixed plate is rotationally provided with two symmetrical first hydraulic rods, the telescopic end of the first hydraulic rod is rotationally connected with the surface of the transverse clamping plate, the back surface of the transverse fixed plate is rotationally provided with two symmetrical second hydraulic rods, the telescopic end of the two second hydraulic rods is rotationally provided with an L-shaped clamping plate, and the inner wall of the L-shaped clamping plate is clamped with the bottom beam of the door frame body; Positioning assembly for fixing the transverse clamping plate in the door frame body.
2. The perpendicularity adjusting device for a civil defense door frame according to claim 1, characterized in that, The surface of the transverse fixed plate is rectangularly arrayed with four mounting angle irons, and the surface of the four mounting angle irons is provided with expansion bolts.
3. The perpendicularity adjusting device for a civil defense door frame according to claim 1, characterized in that, The surface of the transverse fixed plate is provided with a first rotating frame corresponding to the first hydraulic rod, the inner wall of the first rotating frame is rotationally provided with a first rotating shaft, the surface of the first rotating shaft is fixedly provided with a first rotating block, and the end of the first rotating block is fixedly connected with the bottom end of the first hydraulic rod.
4. The verticality adjusting device for civil air defense door frame according to claim 3, characterized in that, The surface of the transverse clamping plate is provided with a second rotating frame corresponding to the first hydraulic rod, the inner wall of the second rotating frame is rotationally provided with a second rotating shaft, the surface of the second rotating shaft is fixedly provided with a second rotating block, and the end of the second rotating block is fixedly connected with the telescopic end of the first hydraulic rod.
5. The perpendicularity adjusting device for civil air defense door frame according to claim 1, characterized in that, The back surface of the transverse fixed plate is provided with a third rotating frame corresponding to the second hydraulic rod, the inner wall of the third rotating frame is rotationally provided with a third rotating shaft, the surface of the third rotating shaft is fixedly provided with a third rotating block, and the end of the third rotating block is fixedly connected with the bottom end of the second hydraulic rod.
6. The verticality adjusting device for a civil defense door frame according to claim 5, wherein, The surface of the L-shaped clamping plate is provided with a fourth rotating frame, and the inner wall of the fourth rotating frame is rotationally provided with a fourth rotating shaft, the surface of the fourth rotating shaft is fixedly provided with a fourth rotating block, and the end of the fourth rotating block is fixedly connected with the telescopic end of the second hydraulic rod.
7. The perpendicularity adjusting device for civil air defense door frame according to claim 1, characterized in that, The positioning assembly includes two rectangular cavities symmetrically opened at both ends of the transverse clamping plate, and a mounting cavity opened in the transverse clamping plate, the inner wall of the two rectangular cavities is slidably provided with a rectangular telescopic rod, the end of the rectangular telescopic rod is fixedly provided with a rectangular plug, and the inner wall of the door frame body is provided with a rectangular plug-in groove matched with the rectangular plug.
8. The verticality adjusting device for civil air defense door frame according to claim 7, characterized in that, The inner wall of the rectangular cavity is rotationally provided with a bidirectional threaded column penetrating through the mounting cavity and extending into the other rectangular cavity, and the end of the two rectangular telescopic rods is provided with a cylindrical threaded groove threadedly connected with the outer surface of the bidirectional threaded column, the end surface of the rectangular telescopic rod is fixedly provided with a limiting block, and the upper surface of the transverse clamping plate is provided with a strip-shaped limiting opening extending into the rectangular cavity and slidably connected with the surface of the limiting block.
9. The verticality adjusting device for civil air defense door frame according to claim 8, characterized in that, The upper surface of the transverse clamping plate is rotationally provided with a vertical rod extending into the mounting cavity, and the top end of the vertical rod is fixedly provided with a rotating rudder, and the bottom end of the vertical rod and the surface of the bidirectional threaded column are fixedly provided with intermeshing conical gears.