Impact-resistant anti-explosion civil air defense door

Abstract

The utility model discloses an anti-impact anti-explosion civil air defense door which comprises a door frame, a partition is horizontally arranged in the middle of the inner side of the door frame, anti-impact modules are arranged at the upper end and the lower end of the partition, and a reset assembly is arranged on one side, located on the door frame, of each anti-impact module. The buffering door is simple in structure and reasonable in design, external impact force is borne through resistance of the buffering particles to the positioning frame, so that the impact force cannot be directly transmitted to the door frame, deformation of the door body after impact is effectively prevented, meanwhile, when the area of a stressed part is small, the buffering effect can be achieved by matching the buffering module with the buffering spring, and the service life is prolonged. According to the civil air defense door, the surface of a traditional door body is effectively prevented from being sunken, broken and other damage caused by local impact, later use is not affected, the buffering particles can be rapidly reset and recover the buffering capacity after the civil air defense door is impacted, the overall operation process is simple and convenient, and the practicability of the civil air defense door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors, in particular to an impact-resistant and explosion-proof civil air defense door. Background Art

[0002] With the acceleration of global urbanization and the rapid development of industrial technology, various high-risk operating environments such as chemical plants, oil and gas fields, nuclear power plants, and underground civil air defense facilities have put forward unprecedented high standards for safety protection measures. Once accidents occur in these places, such as explosions, impacts and other extreme events, they will directly threaten the safety of personnel and the integrity of important facilities. Therefore, the development of efficient and reliable protective equipment, especially protective doors with excellent impact resistance and explosion-proof performance, has become an important research direction in the field of public safety.

[0003] Deficiencies of existing technology:

[0004] At present, the common civil air defense doors are mainly made of steel plates as the outer shell, and a large amount of buffer material is filled inside to ensure the protective performance of the door body. However, in actual use, this type of civil air defense door still has significant defects. Since the door body is an integral structure, although the protective performance is good, it is also very easy to cause the door body to deform when it is subjected to impact. This is an irreversible damage to the door body, which will cause the door body to be unable to open and close and seal normally, and can only be replaced as a whole. At the same time, when the surface of the door body is subjected to a small-scale impact, due to the large local pressure and the lack of a suitable buffer design on the surface of the door body, this will cause dents or even cracks on the surface of the door body, affecting its later use. Utility Model Content

[0005] The purpose of the utility model is to provide an impact-resistant and explosion-proof civil air defense door to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: an impact-resistant explosion-proof civil air defense door, comprising a door frame, a partition is horizontally arranged in the middle of the inner side of the door frame, and the upper and lower ends of the partition are both provided with impact-resistant modules, and a reset component is arranged on one side of the impact-resistant module on the door frame;

[0007] The impact-resistant module comprises:

[0008] A positioning frame, the positioning frame is movably arranged in the door frame at the upper and lower ends of the partition, the upper end or the lower end of the positioning frame is respectively provided with a mounting block, and the positioning frame is slidably connected with the mounting grooves on the inner side of the door frame and the two sides of the partition through the mounting block;

[0009] Buffer particles, the buffer particles are filled in the cavity inside the door frame and are located on one side of the positioning frame;

[0010] Buffer module, the buffer modules are arranged in an active arrangement within the positioning frame, connection parts are provided at the upper and lower ends of the buffer module, and a buffer spring is further provided between the buffer module and the positioning frame.

[0011] Preferably, the reset assembly includes:

[0012] Open slots, the open slots are opened on one side of the door frame and are respectively located at the upper end of the door frame and below the partition;

[0013] Receiving box, the receiving box is slidably connected to the door frame on the outside of the open slot, and the lower end surface of the receiving box is an inclined surface.

[0014] Preferably, the connection part includes:

[0015] Sliding grooves, the sliding grooves are opened at the upper end of the buffer module and the lower end inside the positioning frame;

[0016] Sliding strips, the sliding strips are provided at the lower end of the buffer module and the upper end inside the positioning frame, and the buffer module and the positioning frame are slidably connected through the sliding grooves and the sliding strips.

[0017] Preferably, sealing strips are provided in the gaps between the buffer modules and between the buffer module and the positioning frame.

[0018] Preferably, the diameter of the buffer particles is larger than the gap between the positioning frames.

[0019] Preferably, steel balls and steel ball grooves are provided between the upper and lower positioning frames.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] For this impact-resistant and explosion-proof civil air defense door, by providing an impact-resistant module, the impact-resistant module includes a positioning frame, a mounting block, buffer particles, a buffer module, a connection part and a buffer spring, using the resistance of the buffer particles to the positioning frame to withstand external impact forces, so that the impact forces cannot be directly transmitted to the door frame, effectively preventing the deformation of the door body after being impacted. At the same time, when the area of the stressed part is small, the buffer module cooperates with the buffer spring to complete the buffering effect, effectively preventing damage such as dents and cracks on the surface of the traditional door body caused by local impact, and not affecting the later use;

[0022] For this impact-resistant and explosion-proof civil air defense door, by providing a reset assembly, the reset assembly includes an open slot and a receiving box, realizing the rapid reset of the buffer particles after the civil air defense door is impacted and restoring the buffering ability. The overall operation process is simple and convenient, improving the practicability of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall front view of the present utility model;

[0024] Figure 2 is the front view schematic diagram of the internal structure of the present utility model;

[0025] Figure 3 is the side view schematic diagram of the internal structure of the present utility model;

[0026] Figure 4 of the present utility model Figure 3 is the enlarged schematic diagram at A.

[0027] In the figure: 1, door frame; 2, partition; 3, impact resistance module; 301, positioning frame; 302, mounting block; 303, buffer particles; 304, buffer module; 305, connecting part; 3051, chute; 3052, sliding bar; 306, buffer spring; 4, reset assembly; 401, opening groove; 402, storage box; 5, sealing strip. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a number of" is two or more, unless otherwise specifically defined. Embodiment

[0032] Please refer to Figures 1-4 As shown, a technical solution of an impact-resistant and explosion-proof civil air defense door provided by the present utility model: an impact-resistant and explosion-proof civil air defense door, including a door frame 1. A partition 2 is horizontally and centrally provided inside the door frame 1. Impact-resistant modules 3 are installed at both the upper and lower ends of the partition 2. A reset assembly 4 is installed on one side of the impact-resistant module 3 on the door frame 1. The impact-resistant module 3 includes a positioning frame 301, buffer particles 303, and a buffer module 304. The positioning frame 301 is movably installed inside the door frame 1 at the upper and lower ends of the partition 2. Installation blocks 302 are integrally formed at the upper or lower end of the positioning frame 301 respectively. The positioning frame 301 is slidably connected to the installation grooves on both sides of the inner side of the door frame 1 and the partition 2 through the installation blocks 302. The number of positioning frames 301 inside one door frame 1 is 8, and 4 positioning frames 301 are in a group, which are respectively installed on both the upper and lower sides of the partition 2. The buffer particles 303 are filled in the cavity inside the door frame 1 on one side of the positioning frame 301. When the positioning frame 301 is subjected to an impact force, it will move into the door frame 1 and squeeze the buffer particles 303. After being squeezed, the buffer particles 303 move upward to leave space for the positioning frame 301. The frictional force between the buffer particles 303 causes a greater resistance when the positioning frame 301 moves into the door frame 1, thereby achieving the purpose of buffering. The buffer modules 304 are movably arranged and installed inside the positioning frame 301. Connection parts 305 are installed at both the upper and lower ends of the buffer module 304. A buffer spring 306 is also connected between the buffer module 304 and the positioning frame 301.

[0033] When a part of the door frame 1 is impacted and the area of the stressed part is small, if the stressed part is on the buffer module 304, the impacted buffer module 304 will contract inward against the elastic force of the buffer spring 306. If the impact force is large, after the buffer spring 306 is completely compressed, the positioning frame 301 will move backward to squeeze the buffer particles 303 to achieve buffering. When the area of the impacted part of the door frame 1 is large, the positioning frame 301 will become the main object of force, and the impact force will be completely transmitted to the buffer particles 303. After being squeezed, the buffer particles 303 will move upward and be transferred to the reset assembly 4. Through the anti-impact module 3, the resistance of the buffer particles 303 to the positioning frame 301 is used to bear the external impact force, so that the impact force cannot be directly transmitted to the door frame 1, effectively preventing the deformation of the door body after being impacted. At the same time, when the area of the stressed part is small, the buffer module 304 and the buffer spring 306 can complete the buffering effect, effectively preventing damage such as dents and cracks on the surface of the traditional door body caused by local impact, without affecting the later use.

[0034] The reset assembly 4 includes an opening groove 401 and a storage box 402. The opening groove 401 is opened on one side of the door frame 1 and is located at the upper end of the door frame 1 and below the partition 2 respectively. The storage box 402 is slidably connected to the door frame 1 and is located outside the opening groove 401. The lower end surface of the storage box 402 is an inclined surface. When the buffer particles 303 are squeezed and move upward, they are discharged into the storage box 402 through the opening groove 401. When the positioning frame 301 is reset later, manually lift the storage box 402 so that the lower end of the storage box 402 is flush with the opening groove 401, and the buffer particles 303 in the storage box 402 will immediately fall back into the door frame 1. Through the reset assembly 4, the rapid reset of the buffer particles 303 after the civil air defense door is impacted is realized, and the buffering ability is restored. The overall operation process is simple and convenient, improving the practicability of the civil air defense door.

[0035] The connecting part 305 includes a sliding groove 3051 and a sliding strip 3052. The sliding groove 3051 is opened at the upper end of the buffer module 304 and the lower end inside the positioning frame 301. The sliding strip 3052 is integrally formed at the lower end of the buffer module 304 and the upper end inside the positioning frame 301. The buffer module 304 and the positioning frame 301 are slidably connected through the sliding groove 3051 and the sliding strip 3052. The cooperation of the sliding groove 3051 and the sliding strip 3052 realizes the precise limit of the buffer module 304, avoiding the deviation of the buffer module 304 during the sliding process. At the same time, the depth and opening position of the sliding groove 3051 also limit the sliding stroke of the buffer module 304, and the buffer module 304 will not slide out of the positioning frame 301 under the action of the buffer spring 306.

[0036] Sealing strips 5 are installed in the gaps between the buffer modules 304 and between the buffer modules 304 and the positioning frame 301. The sealing strips 5 can prevent sundries in the environment from entering the positioning frame 301 and affecting the buffering performance.

[0037] The diameter of the buffer particles 303 is larger than the gap between the positioning frames 301, ensuring that the buffer particles 303 will not be discharged from the gaps around the positioning frames 301.

[0038] There are steel balls and steel ball grooves between the upper and lower positioning frames 301, and the steel balls and steel ball grooves improve the stability when the positioning frames 301 move.

[0039] 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 by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant explosion-proof civil air defense door, comprising a door frame (1), characterized in that: A partition (2) is horizontally arranged at the center of the inner side of the door frame (1), and anti-impact modules (3) are arranged at the upper and lower ends of the partition (2); a reset component (4) is arranged on one side of the anti-impact module (3) and located on the door frame (1); The impact-resistant module (3) comprises: A positioning frame (301), the positioning frame (301) being movably arranged in the door frame (1) at the upper and lower ends of the partition (2), a mounting block (302) being respectively arranged at the upper end or the lower end of the positioning frame (301), the positioning frame (301) being slidably connected to mounting grooves on the inner side of the door frame (1) and on both sides of the partition (2) via the mounting block (302); Buffer particles (303), the buffer particles (303) being filled in a cavity inside the door frame (1) and located on one side of the positioning frame (301); A buffer module (304) is movably arranged in a positioning frame (301), a connecting portion (305) is provided at the upper and lower ends of the buffer module (304), and a buffer spring (306) is also provided between the buffer module (304) and the positioning frame (301).

2. The impact-resistant explosion-proof civil air defense door according to claim 1 is characterized in that: The reset component (4) comprises: An opening groove (401), the opening groove (401) being opened on one side of the door frame (1) and being respectively located at the upper end of the door frame (1) and the lower part of the partition (2); A storage box (402) is slidably connected to the door frame (1) and is located outside the opening groove (401); the lower end surface of the storage box (402) is an inclined surface.

3. The impact-resistant explosion-proof civil air defense door according to claim 1 is characterized in that: The connecting portion (305) comprises: A slide groove (3051), wherein the slide groove (3051) is provided at the upper end of the buffer module (304) and the lower end of the inner side of the positioning frame (301); A slide bar (3052) is arranged at the lower end of the buffer module (304) and the upper end inside the positioning frame (301); the buffer module (304) and the positioning frame (301) are slidably connected via a slide groove (3051) and the slide bar (3052).

4. The impact-resistant explosion-proof civil air defense door according to claim 3 is characterized in that: Sealing strips (5) are provided in the gaps between the buffer modules (304) and between the buffer modules (304) and the positioning frame (301).

5. The impact-resistant explosion-proof civil air defense door according to claim 1 is characterized in that: The diameter of the buffer particles (303) is larger than the gap between the positioning frames (301).

6. The impact-resistant explosion-proof civil air defense door according to claim 1 is characterized in that: Steel balls and steel ball grooves are provided between the upper and lower positioning frames (301).

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