Civil air defense door supporting device
By designing a support device that combines a T-shaped slide groove with a hydraulic structure, the problem of inconvenient installation of air-raid shelter doors was solved, achieving stable support and convenient installation of air-raid shelter doors.
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
During the installation of air-raid shelter doors, the large size of the doors and the lack of supporting devices make installation inconvenient.
The design incorporates a T-shaped slide, a first support plate, a second support plate, a T-shaped slider, connecting components, a hydraulic structure, support rods, and rollers. The height is adjusted via the hydraulic structure, and the spacing between the support plates is adjusted using the T-shaped slider and connecting components. Combined with the convex groove, spring, blocking block, pressing surface, and anti-detachment block, the design achieves stable support and limiting of the air-raid shelter door.
This design separates the air-raid shelter door from the ground, facilitating installation and improving the stability of the support structure and the robustness of the connecting components.
Smart Images

Figure CN224059795U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil defense facilities technology, specifically to a civil defense door support device. Background Technology
[0002] Civil defense doors, officially known as entrance doors for civil defense projects, are protective facilities specifically designed to safeguard personnel during wartime or emergencies. As the first line of defense in civil defense systems, their designs are often complex and multifaceted, containing many important components, resulting in significant weight. Transporting and securing these doors requires ensuring their structural and functional components are not damaged, necessitating the use of supports.
[0003] The existing technology has the following problems:
[0004] In the current installation process of air-raid shelter doors, the air-raid shelter doors transported to the site are usually placed directly on the ground with the ground in contact with the ground. Because the ground is in contact with the air-raid shelter door, and the air-raid shelter door is very heavy and no support device is set up, it brings inconvenience to the installation of the air-raid shelter door. Utility Model Content
[0005] This utility model provides a support device for air defense doors to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A support device for a civil defense door includes a base plate. Hydraulic structures are fixedly connected to the corners of the upper surface of the base plate. A first support plate is fixedly connected to the front side of the upper surface of the base plate. A second support plate is provided on the rear side of the first support plate. Protective pads are fixedly connected to the opposite surfaces of the first and second support plates. Connecting components are provided on the left and right sides of the first and second support plates. Positioning bolts are threadedly connected to the upper corners of the opposite surfaces of the first and second support plates.
[0008] The upper surface of the base plate has T-shaped grooves on the left and right sides of the rear side. The lower surface of the second support plate has T-shaped sliders fixedly connected to the left and right sides of the bottom surface. The left and right T-shaped sliders correspond to the T-shaped grooves respectively. The outer surfaces of the left and right T-shaped sliders are slidably connected to the inside of the T-shaped grooves respectively. The lower surface of the second support plate overlaps with the upper surface of the base plate. The connecting components on the left and right sides each include a rotating block and a plate.
[0009] A further improvement of this utility model is that: the hydraulic structure is composed of a hydraulic cylinder and a hydraulic rod; a support rod is fixedly connected to the corner of the lower surface of the base plate near the hydraulic structure; a roller is movably connected to the lower end of the support rod; the middle of the outer surface of the rotating block is movably connected to the surface of the second support plate; and a clamping area is formed between the second support plate and the protective pad.
[0010] A further improvement of this utility model is that: the upper front side of the rotating block is fixedly connected to the rear side of the plate, and the lower surface of the plate is provided with a number of left-right communicating positioning grooves, and the upper surface of the inner wall of the number of positioning grooves is provided with left-right communicating arc-shaped grooves.
[0011] A further improvement of the present invention is that: a positioning post is connected inside one of the positioning grooves and the arc-shaped groove; a circular baffle is fixedly connected to the side of the positioning post away from the plate; and the end of the positioning post away from the circular baffle is fixedly connected to the surface of the first support plate.
[0012] A further improvement of this utility model is that the outer surface diameter of the positioning post is smaller than the width of the opposite surface of the inner wall of the positioning groove.
[0013] A further improvement of the present invention is that: a convex groove is provided on the upper left and right sides of the first support plate, the protruding part of the convex groove is connected to the inside and outside, a spring is fixedly connected to the middle of the inner wall of the convex groove, a blocking block is fixedly connected to the end face of the spring, the outer surface of the blocking block extends to the outside of the convex groove, and the lower surface of the blocking block overlaps with the upper surface of the plate.
[0014] A further improvement of the present invention is that: an extrusion surface is provided above the outer surface of the blocking block, the extrusion surface is in an inclined state, the outer surface of the extrusion surface is aligned with the surface of the first support plate, and anti-detachment blocks are fixedly connected above and below the blocking block away from the extrusion surface. The outer surface of the anti-detachment block is slidably connected to the inner wall of the convex groove, and the outer surface of the blocking block is slidably connected to the inside of the convex groove.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a support device for a civil defense door, which employs a T-shaped sliding groove, a first support plate, a second support plate, a T-shaped slider, a connecting assembly, a hydraulic structure, a support rod, and rollers in cooperation. By placing the civil defense door between the two support plates, the movement of the second support plate and the adjustment of the connecting assembly restrict the position of the civil defense door after placement, thereby keeping the civil defense door separated from the ground. This structural design facilitates the support of the civil defense door and also makes installation easier for personnel.
[0017] 2. This utility model provides a support device for a civil defense door, which employs the cooperation of a convex groove, a spring, a blocking block, a pressing surface, and an anti-detachment block. Through the tightening action of the spring, the lower surface of the blocking block is made to make close contact with the upper surface of the plate in the connecting assembly, thereby further limiting the position of the plate. This structure improves the stability of the plate in the connecting assembly after the civil defense door is supported. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is an exploded view of the T-shaped slider and T-shaped groove on the rear side of the support device of this utility model.
[0020] Figure 3 This is a schematic diagram of the connection component structure of this utility model;
[0021] Figure 4 This is an enlarged structural diagram of point A of this utility model.
[0022] In the diagram: 1. Base plate; 11. T-shaped groove; 2. Hydraulic structure; 3. First support plate; 31. Convex groove; 32. Spring; 33. Blocking block; 34. Extrusion surface; 35. Anti-detachment block; 4. Second support plate; 41. T-shaped slider; 5. Protective pad; 6. Connecting assembly; 61. Rotating block; 62. Plate; 63. Positioning groove; 64. Arc-shaped groove; 65. Positioning post; 66. Circular baffle; 7. Positioning bolt. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Example 1: As Figures 1 to 4As shown, this utility model provides a support device for a civil defense door, including a base plate 1. Hydraulic structures 2 are fixedly connected to the corners of the upper surface of the base plate 1, facilitating the lifting of the entire device and providing height adjustment. A first support plate 3 is fixedly connected to the front side of the upper surface of the base plate 1, and a second support plate 4 is provided on the rear side of the first support plate 3. Protective pads 5 are fixedly connected to the opposite surfaces of the first support plate 3 and the second support plate 4. The protective pads 5 are made of a soft and wear-resistant material, such as rubber, to prevent damage to the surface of the civil defense door when supporting it. The first support plate 3, the second support plate 4... Connecting components 6 are provided on both the left and right sides of plate 4. Positioning bolts 7 are threadedly connected to the corners above the opposite surfaces of the first support plate 3 and the second support plate 4. By tightening the positioning bolts 7, the position of the air defense door between the two support plates can be further tightened and limited. The hydraulic structure 2 is composed of a hydraulic cylinder and a hydraulic rod, which provides support for the device and prevents movement caused by the rollers. A support rod is fixedly connected to the corner of the lower surface of the base plate 1 near the side of the hydraulic structure 2. A roller is movably connected to the lower end of the support rod. The rollers facilitate the movement of the air defense door during installation.
[0025] T-shaped grooves 11 are provided on the left and right sides of the rear side of the upper surface of the base plate 1. T-shaped sliders 41 are fixedly connected to the left and right sides of the lower surface of the second support plate 4. The left and right T-shaped sliders 41 correspond to the T-shaped grooves 11 respectively. The outer surfaces of the left and right T-shaped sliders 41 are slidably connected to the inside of the T-shaped grooves 11 respectively, so that the second support plate 4 can slide back and forth on the base plate 1. Thus, the distance between the first support plate 3 and the second support plate 4 can be adjusted according to the size of the air defense door. A clamping area is formed between the second support plate 4 and the protective pad 5 for placing the air defense door.
[0026] Example 2: Figures 1 to 4As shown, both the left and right connecting components 6 include a rotating block 61 and a plate 62. The middle of the outer surface of the rotating block 61 is movably connected to the surface of the second support plate 4. The rotating block 61 can rotate around its connection point with the second support plate 4. The upper front side of the rotating block 61 is fixedly connected to the rear side of the plate 62. The lower surface of the plate 62 has several left-right communicating positioning grooves 63. The upper surface of the inner wall of each of the positioning grooves 63 has a left-right communicating arc-shaped groove 64. The arc-shaped groove 64 is provided to facilitate full contact with the surface of the positioning post 65. One of the positioning grooves 63 and the arc-shaped groove 64... An internal positioning post 65 is connected. A circular baffle 66 is fixedly connected to the side of the positioning post 65 away from the plate 62. The circular baffle 66 has a blocking function. The end of the positioning post 65 away from the circular baffle 66 is fixedly connected to the surface of the first support plate 3. The outer surface diameter of the positioning post 65 is smaller than the width of the inner wall of the positioning groove 63, which facilitates the positioning post 65 to contact and limit the positioning with the positioning groove 63 and the arc-shaped groove 64. When the plate 62 is rotated so that the positioning post 65 is inserted into different positioning grooves 63, the size of the clamping area between the first support plate 3 and the second support plate 4 can be changed, which facilitates the limiting support of the air defense door.
[0027] Example 3: Figures 1 to 4 As shown, the first support plate 3 has convex grooves 31 that communicate with each other on both the upper left and right sides. The protruding parts of the convex grooves 31 are connected internally and externally. A spring 32 is fixedly connected to the middle of the inner wall of the convex groove 31. A blocking block 33 is fixedly connected to the end face of the spring 32. The outer surface of the blocking block 33 extends to the outside of the convex groove 31, and the lower surface of the blocking block 33 overlaps with the upper surface of the plate 62. When the plate 62 rotates, the blocking block 33 can limit the plate 62 under the action of the spring 32.
[0028] A pressing surface 34 is provided above the outer surface of the blocking block 33. The pressing surface 34 is in an inclined state and the upper part of the outer surface of the pressing surface 34 is aligned with the surface of the first support plate 3. When the plate 62 needs to be rotated, the blocking block 33 can be pushed back into the convex groove 31 by contacting and pressing the pressing surface 34. Anti-detachment blocks 35 are fixedly connected above and below the blocking block 33 away from the pressing surface 34. The outer surface of the anti-detachment block 35 is slidably connected to the inner wall of the convex groove 31, and the outer surface of the blocking block 33 is slidably connected to the inside of the convex groove 31, which can prevent the blocking block 33 from coming out of the convex groove 31.
[0029] Working principle: The air-raid shelter door is placed in the clamping area, and the second support plate 4 is pushed to contact the air-raid shelter door. Then, the plate 62 is rotated so that it contacts the pressing surface 34, and presses the blocking block 33 and spring 32, so that the appropriate positioning groove 63 and arc-shaped groove 64 contact the surface of the positioning post 65 and achieve limiting. By tightening the positioning bolt 7, the air-raid shelter door can be further tightened and limited, achieving stable support for the air-raid shelter door. By moving the entire support device, when it is moved to the position required for the installation of the air-raid shelter door, the hydraulic structure 2 is activated to lift the entire device, so that the rollers are separated from the ground and have stability. The hydraulic structure 2 also facilitates the adjustment of the height of the entire device, making it convenient for personnel to install.
[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A support device for a civil defense door, comprising a base plate (1), characterized in that: The upper surface corner of the bottom plate (1) is fixedly connected with a hydraulic structure (2), the upper surface front side of the bottom plate (1) is fixedly connected with a first supporting plate (3), the rear side of the first supporting plate (3) is provided with a second supporting plate (4), the opposite surfaces of the first supporting plate (3) and the second supporting plate (4) are fixedly connected with protective pads (5), the left and right sides of the first supporting plate (3) and the second supporting plate (4) are provided with connecting assemblies (6), and the upper corner of the opposite surfaces of the first supporting plate (3) and the second supporting plate (4) is penetrated and screw-connected with a positioning bolt (7). The upper surface rear side of the bottom plate (1) is provided with T-shaped sliding grooves (11) on the left and right sides, the lower surface of the second supporting plate (4) is fixedly connected with T-shaped sliding blocks (41) on the left and right sides, the T-shaped sliding blocks (41) on the left and right sides are correspondingly arranged with the T-shaped sliding grooves (11), the outer surfaces of the T-shaped sliding blocks (41) on the left and right sides are slidably connected with the interiors of the T-shaped sliding grooves (11), the lower surface of the second supporting plate (4) is overlapped with the upper surface of the bottom plate (1), and the connecting assemblies (6) on the left and right sides comprise rotating blocks (61) and plate blocks (62).
2. The support device for a civil defense door according to claim 1, characterized in that: The hydraulic structure (2) is composed of a hydraulic cylinder and a hydraulic rod, the lower surface corner of the bottom plate (1) is fixedly connected with a supporting rod on the side close to the hydraulic structure (2), the lower end of the supporting rod is movably connected with a roller, the outer surface of the rotating block (61) is movably connected with the surface of the second supporting plate (4), and a clamping area is formed between the second supporting plate (4) and the protective pad (5).
3. The support device for a civil defense door according to claim 1, characterized in that: The front side of the rotating block (61) is fixedly connected with the rear side of the plate block (62), the lower surface of the plate block (62) is provided with a plurality of left and right communicating positioning grooves (63), and the inner wall upper surfaces of the positioning grooves (63) are provided with left and right communicating arc-shaped grooves (64).
4. The support device for a civil defense door according to claim 3, characterized in that: The interiors of one of the positioning grooves (63) and the arc-shaped groove (64) are overlapped with a positioning column (65), the side, away from the plate block (62), of the positioning column (65) is fixedly connected with a circular baffle (66), and the end, away from the circular baffle (66), of the positioning column (65) is fixedly connected with the surface of the first supporting plate (3).
5. The support device for a civil defense door according to claim 4, characterized in that: The outer surface diameter of the positioning column (65) is smaller than the width of the opposite surface of the positioning groove (63).
6. The support device for a civil defense door according to claim 1, characterized in that: The left and right sides of the first supporting plate (3) are provided with front and rear communicating convex grooves (31) on the upper sides, the convex part of the convex groove (31) is communicated between the inside and the outside, the inner wall middle part of the convex groove (31) is fixedly connected with a spring (32), the end surface of the spring (32) is fixedly connected with a blocking block (33), the outer surface of the blocking block (33) extends to the outside of the convex groove (31), and the lower surface of the blocking block (33) is overlapped with the upper surface of the plate block (62).
7. The support device for a civil defense door according to claim 6, characterized in that: The outer surface of the blocking block (33) is provided with an extrusion surface (34), the extrusion surface (34) is in an inclined state, the outer surface of the extrusion surface (34) is aligned with the surface of the first supporting plate (3), the upper and lower sides of the blocking block (33) away from the extrusion surface (34) are fixedly connected with anti-dropping blocks (35), the outer surface of the anti-dropping block (35) is slidably connected with the inner wall of the convex groove (31), and the outer surface of the blocking block (33) is slidably connected with the inside of the convex groove (31).