Structure for reducing impact force of civil air defense door
By setting up matrix-arranged springs and multi-stage buffer components on the civil defense doors, combined with the damping liquid box, the problem of traditional civil defense doors being easily damaged under extreme impact is solved, achieving better anti-impact protection and stable fixation.
Patent Information
- Application Number
- CN202422233656.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Traditional civil defense doors are prone to deformation or breaking under extreme impact conditions, and lack effective shock absorption measures, resulting in the impact force acting directly on the door body and serious damage.
The first spring and buffer assembly arranged in a matrix form are adopted, including a buffer cylinder, a guide column, a piston, a sealing ring, a second spring and a damping liquid box, absorb and disperse impact forces through a multi-stage buffer structure, and combine with the widening door panel to enhance fixity.
Effectively absorb and disperse impact forces, reduce damage to civil defense doors, improve impact resistance, and enhance the fixing stability of door frames and walls.
Smart Images
Figure CN223202971U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of civil defense doors, in particular to a structure for reducing the impact force of civil defense doors. Background Art
[0002] Civil air defense doors are usually composed of door frames, door leaves, door locks and other components. They are an important barrier to ensure people's safety. In the military, civil and industrial fields, civil air defense doors are important safety protection facilities. Their impact resistance is directly related to the safety of personnel and equipment. With the increasing security threats such as terrorist attacks and natural disasters, higher requirements are placed on the impact resistance of civil air defense doors.
[0003] Traditional civil air defense doors are mostly made of a single material, such as steel plates or reinforced concrete. Although these materials have certain strength, they are prone to deformation or cracking under extreme impact conditions.
[0004] Furthermore, most civil air defense doors lack impact-reducing components and shock-absorbing measures, which can easily cause external forces to directly act on the door, causing damage. Some civil air defense doors, while designed with spring shock-absorbing structures, have limited effectiveness and cannot effectively absorb and disperse impact forces. Consequently, even larger impact forces can act on the door, exacerbating damage and hindering the effectiveness of robust protection. In light of this, we propose a structure for reducing impact forces on civil air defense doors. Utility Model Content
[0005] The purpose of the present invention is to provide a structure for reducing the impact force of a civil defense door, so as to solve the defects mentioned in the above-mentioned background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A structure for reducing the impact force of a civil defense door comprises a door frame and a door body hinged on the door frame, a rectangular frame is fixedly installed on the front side surface of the door body, an anti-collision steel plate is slidably connected to the rectangular frame, a plurality of first springs arranged in a matrix are fixedly installed between the anti-collision steel plate and the door body, a plurality of buffer assemblies arranged in a matrix are arranged between the anti-collision steel plate and the door body, the buffer assemblies comprise a buffer cylinder arranged on the front side surface of the door body and a guide column arranged on the rear side surface of the anti-collision steel plate, a piston is fixedly installed on the end of the guide column, the piston is located in the buffer cylinder and is slidably connected to the buffer cylinder, a plurality of sealing rings arranged linearly and equidistantly are embedded on the piston, and a second spring is fixedly installed between the piston and the rear side wall of the buffer cylinder.
[0008] Preferably, widened door panels are provided on both the front and rear side panels of the door frame, and the widened door panels are installed on the building wall.
[0009] Preferably, a limit plate is fixedly mounted on the cylinder body at the rear end portion of the buffer cylinder, and the limit plate is fixedly mounted on the front side surface of the door body.
[0010] Preferably, a through hole communicating with the outside is provided on the cavity wall of the front end portion of the buffer cylinder, and the guide post passes through the through hole and is slidably connected to the through hole.
[0011] Preferably, the size of the guide column is adapted to the size of the through hole, the size of the piston is adapted to the size of the buffer cylinder, and the outer diameter of the piston is larger than the aperture of the through hole.
[0012] Preferably, a fixing plate is fixedly mounted on the front end portion of the guide column, and the fixing plate is fixedly mounted on the back side of the anti-collision steel plate.
[0013] Preferably, a damping liquid box is provided on one side of the buffer cylinder, and the damping liquid box is fixedly mounted on the door body. The damping liquid box and the buffer cylinder are connected through a conducting tube. A lower slide is slidably connected inside the damping liquid box, and a plurality of third springs arranged in a matrix are fixedly mounted between the lower slide and the top wall of the damping liquid box.
[0014] Preferably, two mutually symmetrical guide rods are fixedly installed on the left and right inner walls of the damping fluid box, and two mutually symmetrical guide grooves are provided on the left and right plate bodies of the lower slide. The guide rods are located at the guide grooves, and the lower slide is sleeved on the guide rods and slidably connected to the guide rods.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. The utility model can provide buffering protection for the anti-collision steel plate part by providing the first spring. In addition, the buffer assembly provided can utilize the second spring and the damping liquid contained in the buffer cylinder to provide further buffering protection, effectively absorb and disperse the impact force, and achieve the effect of reducing the impact force of the civil defense door.
[0017] 2. The utility model provides a widened door panel, so that the door frame is fixed on the building wall more firmly and stably and is not easily damaged. In addition, by providing a damping liquid box, a third spring and a lower slide plate, after the damping liquid in the buffer cylinder is squeezed into the damping liquid box, the third spring can play a role of re-buffering, thereby improving the buffering performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a partial structural diagram of the utility model;
[0020] Figure 3 This is a schematic diagram of the explosion structure of the buffer component of the utility model;
[0021] Figure 4 This is one of the partial structural diagrams of the buffer assembly of the utility model;
[0022] Figure 5 It is a cross-sectional view of the damping fluid box of the utility model;
[0023] Figure 6 This is the second partial structural diagram of the buffer assembly of the utility model;
[0024] The meaning of each number in the figure is:
[0025] 1. Door frame; 10. Widen door panel;
[0026] 2. Door body; 20. Rectangular frame; 21. Anti-collision steel plate; 22. First spring;
[0027] 3. Buffer assembly; 30. Buffer cylinder; 301. Limit plate; 31. Through hole; 32. Second spring; 33. Guide column; 34. Piston; 341. Sealing ring; 35. Fixed plate; 36. Damping fluid box; 361. Conducting tube; 37. Guide rod; 38. Third spring; 39. Lower slide plate; 391. Guide groove. DETAILED DESCRIPTION
[0028] 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.
[0029] See also Figures 1-6 The utility model provides a technical solution: a structure for reducing the impact force of a civil defense door, comprising a door frame 1 and a door body 2 hinged on the door frame 1, a rectangular frame 20 fixedly mounted on the front side of the door body 2, an anti-collision steel plate 21 slidably connected inside the rectangular frame 20, a plurality of first springs 22 arranged in a matrix are fixedly mounted between the anti-collision steel plate 21 and the door body 2, so as to achieve a buffering and protective effect of the anti-collision steel plate 21 by utilizing the first springs 22;
[0030] Specifically, a plurality of buffer components 3 arranged in a matrix are provided between the anti-collision steel plate 21 and the door body 2. The buffer component 3 includes a buffer cylinder 30 provided on the front side of the door body 2 and a guide column 33 provided on the rear side of the anti-collision steel plate 21. A piston 34 is fixedly installed at the end of the guide column 33. The piston 34 is located in the buffer cylinder 30 and is slidingly connected to the buffer cylinder 30. A plurality of sealing rings 341 arranged at equal intervals in a linear manner are embedded on the piston 34, which is beneficial to improve the sealing effect and reduce the leakage of the damping fluid; a second spring 32 is fixedly installed between the piston 34 and the rear side wall of the buffer cylinder 30, so as to achieve the effect of further buffering protection by utilizing the second spring 32 and the damping fluid in the buffer cylinder 30.
[0031] In this embodiment, widened door panels 10 are provided on the front and rear side panels of the door frame 1, and the widened door panels 10 are installed on the building wall. The widened door panels 10 are provided to increase the fixed contact area between the door frame 1 and the building wall, so that the door frame 1 is fixed on the building wall more firmly and stably.
[0032] Specifically, a limit plate 301 is fixedly installed on the cylinder body at the rear end of the buffer cylinder 30, and the limit plate 301 is fixedly installed on the front side of the door body 2 by a plurality of fastening bolts; a fixed plate 35 is fixedly installed on the front end of the guide column 33, and the fixed plate 35 is fixedly installed on the back of the anti-collision steel plate 21 by a plurality of fastening bolts, so as to facilitate the fixed installation operation.
[0033] Furthermore, a through hole 31 communicating with the outside world is provided on the cavity wall of the front end portion of the buffer cylinder 30, and the guide column 33 passes through the through hole 31 and is slidably connected with the through hole 31; the size of the guide column 33 is adapted to the size of the through hole 31, and the size of the piston 34 is adapted to the size of the buffer cylinder 30, and the outer diameter of the piston 34 is larger than the aperture of the through hole 31, which is used for stable sliding operation of the guide column 33.
[0034] In addition, a damping liquid box 36 is provided on one side of the buffer cylinder 30. The damping liquid box 36 is fixedly installed on the door body 2. The damping liquid box 36 and the buffer cylinder 30 are connected through a conducting tube 361. A lower slide plate 39 is slidably connected in the damping liquid box 36. A plurality of third springs 38 arranged in a matrix are fixedly installed between the lower slide plate 39 and the top wall of the damping liquid box 36. After the damping liquid in the buffer cylinder 30 is squeezed into the damping liquid box 36, the third springs 38 can be used to further provide buffering protection.
[0035] It is worth noting that two mutually symmetrical guide rods 37 are fixedly installed on the left and right inner walls of the damping fluid box 36, and two mutually symmetrical guide grooves 391 are provided on the left and right plates of the lower slide 39. The guide rod 37 is located at the guide groove 391, and the lower slide 39 is sleeved on the guide rod 37 and slidably connected to the guide rod 37, which has the effect of guiding the movement of the lower slide 39.
[0036] When the structure for reducing the impact force of the civil defense door of the present invention is in use, after colliding with the anti-collision steel plate 21, the first spring 22 is compressed first, and buffering protection is achieved during the compression of the first spring 22. In addition, after the anti-collision steel plate 21 is hit, it can drive the guide column 33 to slide toward the buffer cylinder 30, driving the piston 34 to squeeze the second spring 32 and the damping fluid between the piston 34 and the buffer cylinder 30. The second spring 32 is squeezed for further buffering protection operation. In addition, after the damping fluid in the buffer cylinder 30 is squeezed into the damping fluid box 36, it can drive the lower slide plate 39 to move upward and squeeze the third spring 38. The third spring 38 also performs buffering protection at the same time to achieve impact protection against impact force.
[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A structure for reducing the impact force of a civil air defense door, comprising a door frame (1) and a door body (2) hinged to the door frame (1), characterized in that: A rectangular frame (20) is fixedly installed on the front side of the door body (2), and an anti-collision steel plate (21) is slidably connected in the rectangular frame (20). A plurality of first springs (22) arranged in a matrix are fixedly installed between the anti-collision steel plate (21) and the door body (2). A plurality of buffer components (3) arranged in a matrix are arranged between the anti-collision steel plate (21) and the door body (2). The buffer component (3) includes a buffer cylinder (30) arranged on the front side of the door body (2) and a guide column (33) arranged on the rear side of the anti-collision steel plate (21). A piston (34) is fixedly installed at the end of the guide column (33). The piston (34) is located in the buffer cylinder (30) and is slidably connected to the buffer cylinder (30). A plurality of sealing rings (341) arranged in a linear and equidistant manner are embedded on the piston (34). A second spring (32) is fixedly installed between the piston (34) and the rear side wall of the buffer cylinder (30).
2. The structure for reducing the impact force of a civil defense door according to claim 1, characterized in that: Widened door panels (10) are provided on both the front and rear side panels of the door frame (1), and the widened door panels (10) are installed on the building wall.
3. The structure for reducing the impact force of a civil defense door according to claim 1 is characterized in that: A limiting plate (301) is fixedly mounted on the rear end cylinder of the buffer cylinder (30), and the limiting plate (301) is fixedly mounted on the front side surface of the door body (2).
4. The structure for reducing the impact force of a civil defense door according to claim 1 is characterized in that: A through hole (31) communicating with the outside is provided on the cavity wall of the front end portion of the buffer cylinder (30), and the guide column (33) passes through the through hole (31) and is slidably connected to the through hole (31).
5. The structure for reducing the impact force of a civil defense door according to claim 4 is characterized in that: The size of the guide column (33) is adapted to the size of the through hole (31), the size of the piston (34) is adapted to the size of the buffer cylinder (30), and the outer diameter of the piston (34) is larger than the aperture of the through hole (31).
6. The structure for reducing the impact force of a civil defense door according to claim 1 is characterized in that: A fixing plate (35) is fixedly mounted on the front end of the guide column (33), and the fixing plate (35) is fixedly mounted on the back side of the anti-collision steel plate (21).
7. The structure for reducing the impact force of a civil defense door according to claim 1 is characterized in that: A damping liquid box (36) is provided on one side of the buffer cylinder (30), and the damping liquid box (36) is fixedly installed on the door body (2). The damping liquid box (36) and the buffer cylinder (30) are connected through a conducting tube (361). A lower slide plate (39) is slidably connected inside the damping liquid box (36), and a plurality of third springs (38) arranged in a matrix are fixedly installed between the lower slide plate (39) and the top wall of the damping liquid box (36).
8. The structure for reducing the impact force of a civil defense door according to claim 7, characterized in that: Two mutually symmetrical guide rods (37) are fixedly mounted on the inner walls on both sides of the damping liquid box (36), and two mutually symmetrical guide grooves (391) are provided on both sides of the plate body on both sides of the lower slide plate (39). The guide rods (37) are located at the guide grooves (391), and the lower slide plate (39) is sleeved on the guide rods (37) and is slidably connected to the guide rods (37).