Compression-resistant protective air-tight door

Abstract

The utility model discloses a compression-resistant protective air-tight door which comprises a door frame, a door plate is rotatably connected to the edge of one side of the door frame, a dispersing plate is connected to the middle of one side of the door plate, an inner groove is formed in the door plate, a buffer pad is fixedly connected to the side wall of one side of the inner groove, a connecting plate is fixedly connected to one end of the dispersing plate, and a plate spring is arranged in the inner groove. The connecting plate is fixedly connected with the leaf spring in the inner groove through the side wall, away from the dispersing plate, of the connecting plate, the dispersing plate is of an arc-shaped structure, and a hollow structure is formed between the dispersing plate and the connecting plate. Therefore, the impact force can be dispersed, the impact force of front contact is reduced, the overall compression resistance of the dispersion plate and the door plate is improved, the pressure of each point position of the dispersion plate can be reduced due to dispersion, and the overall compression resistance of the dispersion plate is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure-resistant structure for sealed doors, specifically to a pressure-resistant and protective airtight door. Background Technology

[0002] Protective airtight doors are a type of door used at the entrances and exits of civil protection projects. They are typically installed in underground parking lots. These doors create a relatively enclosed space to protect people from disasters, hence the high requirements for protective doors.

[0003] The basic requirement for protective doors is their pressure resistance, because protective doors are mainly used to prevent the impact pressure caused by explosions and floods. Currently, most protective doors are rectangular flat structures, which are in full direct contact with shock waves and water. This increases the burden on the protective doors and makes them more susceptible to damage during impacts. Therefore, a pressure-resistant protective airtight door is proposed. Utility Model Content

[0004] The technical problem this invention aims to solve is that current protective doors are mostly rectangular flat structures, which are in direct contact with shock waves and water. This increases the burden on the protective door and makes it easy for it to be damaged during impact. This invention provides a pressure-resistant protective airtight door that can disperse the pressure it receives, distributing the pressure that was originally in direct contact to the surrounding area, thereby improving its pressure resistance and extending its service life.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a pressure-resistant protective airtight door, including a door frame, a door panel rotatably connected to one side edge of the door frame, a dispersion plate connected to the middle of one side of the door panel, an inner groove opened in the door panel, and a buffer pad fixedly connected to one side wall of the inner groove, a connecting plate fixedly connected to one end of the dispersion plate, and a leaf spring provided in the inner groove, the connecting plate being fixedly connected to the leaf spring in the inner groove through its side wall away from the dispersion plate, the dispersion plate having an arc-shaped structure, and a hollow structure between the dispersion plate and the connecting plate.

[0006] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to one side of the buffer pad, and the four side walls of the connecting plate are slidably fitted with the inner wall of the inner groove. Three sliding grooves are evenly provided on the side wall of the connecting plate away from the buffer pad.

[0007] As a preferred technical solution of this utility model, each of the grooves is slidably connected to two sliders. The leaf spring has an arc-shaped structure, and its two ends are rotatably connected to one end of the two sliders. The leaf spring is fixedly connected to the side wall of the connecting plate through its center point.

[0008] As a preferred embodiment of this utility model, the connecting plate extends into the inner groove, the connecting plate slides against the inner wall of the inner groove, the dispersing plate is located in the middle of the door frame, and both the dispersing plate and the leaf spring are made of elastic steel.

[0009] As a preferred technical solution of this utility model, a baffle is fixedly connected to the inner wall of the door frame and the edge away from the door panel. The baffle has a U-shaped structure. One side of the baffle is attached to the edge of the door panel. The dispersion plate extends 3-5cm from the middle of the baffle.

[0010] As a preferred technical solution of this utility model, a storage groove is provided on the side of the door panel away from the dispersion plate and near the bottom. A follower plate is rotatably connected to the top of the storage groove. A telescopic plate is movably connected to the follower plate. A support plate is rotatably connected to the edge of the telescopic plate away from the follower plate. Adjustment grooves are evenly provided on the two side walls of the telescopic plate that are far apart from each other. A positioning groove is provided through the two side walls of the follower plate that are far apart from each other and opposite to the adjustment grooves. A pin is inserted into the positioning groove.

[0011] The present invention has the following advantages: a dispersion plate is connected to the side of the door panel that is in contact with the impact force, and the dispersion plate is set into an arc-shaped structure. This can disperse the impact force, reduce the impact force of the front contact, and thus improve the overall compressive strength of the dispersion plate and the door panel. Because dispersion can reduce the pressure at each point of the dispersion plate, the overall compressive strength of the dispersion plate is improved.

[0012] Because the dispersion plate has elasticity, it can make soft contact with the impact force, thereby reducing the damage caused by the impact force to the dispersion plate. At the same time, when the pressure is too high, it will push the dispersion plate to retract, thereby squeezing the leaf spring to relieve the pressure, improve the door panel's pressure resistance and protection, and increase its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0014] Figure 2 This is an exploded structural diagram of a preferred embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the back structure of a preferred embodiment of the present invention.

[0016] Explanation of reference numerals in the attached diagram: 1. Door frame; 2. Baffle; 3. Door panel; 4. Dispersion plate; 5. Buffer pad; 6. Connecting plate; 7. Slide groove; 8. Leaf spring; 9. Connecting plate; 10. Follower plate; 11. Telescopic plate; 12. Support plate; 13. Adjustment groove; 14. Positioning groove; 15. Storage groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please refer to the following: Figure 1-3 This utility model discloses a pressure-resistant protective airtight door, including a door frame 1, a door panel 3 rotatably connected to one side edge of the door frame 1, a dispersion plate 4 connected to the middle of one side of the door panel 3, an inner groove opened in the door panel 3, and a buffer pad 5 fixedly connected to one side wall of the inner groove, a connecting plate 9 fixedly connected to one end of the dispersion plate 4, and a leaf spring 8 provided in the inner groove, the connecting plate 9 being fixedly connected to the leaf spring 8 in the inner groove through its side wall away from the dispersion plate 4, the dispersion plate 4 having an arc-shaped structure, and a hollow structure between the dispersion plate 4 and the connecting plate 9;

[0019] A connecting plate 6 is fixedly connected to one side of the buffer pad 5. The four side walls of the connecting plate 6 slide against the inner wall of the inner groove. Three grooves 7 are evenly opened on the side wall of the connecting plate 6 away from the buffer pad 5. Two sliders are slidably connected in each groove 7. The leaf spring 8 has an arc-shaped structure. The leaf spring 8 is rotatably connected to one end of the two sliders through its two ends. The leaf spring 8 is fixedly connected to the side wall of the connecting plate 9 through its center point. The connecting plate 9 extends into the inner groove and slides against the inner wall of the inner groove. The dispersion plate 4 is located in the middle of the door frame 1. The dispersion plate 4 and the leaf spring 8 are both elastic steel structures. A baffle 2 is fixedly connected to the inner wall of the door frame 1 away from the edge of the door panel 3. The baffle 2 has a U-shaped structure. One side of the baffle 2 is against the edge of the door panel 3. The dispersion plate 4 extends 3-5cm from the middle of the baffle 2.

[0020] The technical effect of this solution is as follows: By connecting the connecting plate 9 to the leaf spring 8, the connecting plate 9 is retracted into the inner groove. When the dispersion plate 4 is subjected to impact force, it will disperse along the arc surface of the dispersion plate 4, thereby reducing the pressure on the dispersion plate 4. Similarly, because it is dispersed, the pressure on each point of the dispersion plate 4 is greatly reduced, thereby reducing the damage caused by the impact force to the dispersion plate 4. When the pressure is too high, it will drive the dispersion plate 4 to move, thereby applying pressure to the leaf spring 8, causing the leaf spring 8 to deform and move. This process will reduce the impact of the pressure and improve the compressive strength. The baffle 2 can block the connection between the door panel 3 and the dispersion plate 4, ensuring that the impact force mainly acts on the dispersion plate 4 and preventing the impact force from contacting other parts of the door panel 3, thus ensuring the overall compressive strength of the door panel 3.

[0021] A storage groove 15 is provided on the side of the door panel 3 away from the dispersion plate 4 and near the bottom. A follower plate 10 is rotatably connected to the top of the storage groove 15. A telescopic plate 11 is telescopically connected to the follower plate 10. A support plate 12 is rotatably connected to the edge of the telescopic plate 11 away from the follower plate 10. Adjustment grooves 13 are evenly provided on the two side walls of the telescopic plate 11 that are far apart from each other. A positioning groove 14 is provided on the two side walls of the follower plate 10 that are far apart from each other and opposite to the adjustment grooves 13. A pin is inserted into the positioning groove 14.

[0022] The technical effect of this solution is as follows: when needed, the follower plate 10 can be pulled out from the storage slot 15, then the telescopic plate 11 can be pulled out from the follower plate 10, and finally the support plate 12 can be attached to the ground. This can provide a diagonal support for the door panel 3, improve the stability and pressure resistance of the door panel 3, and the telescopic plate 11 can be adjusted and positioned by the adjustment slot 13, positioning slot 14 and pin, improving flexibility.

[0023] Specifically, when this utility model is used, the door panel 3 is closed inside the door frame 1. When it is impacted, the impact force will be dispersed on the surface of the dispersion plate 4, thereby reducing the damage caused by the impact. Because the dispersion plate 4 itself is elastic, it will adapt to shrink and change when impacted, thereby avoiding hard contact with the impact force. Similarly, the dispersion plate 4 will shrink and move when subjected to pressure, thereby pressing the leaf spring 8 through the connecting plate 9. As the leaf spring 8 deforms, it can alleviate the impact. Through these two methods, the compressive strength can be effectively improved. The follower plate 10 is pulled out from the storage groove 15 and the telescopic plate 11 is extended as needed. Finally, the support plate 12 is attached to the ground to provide additional support for the door panel 3 and increase the stability of the door panel 3. The buffer pad 5 can increase the buffer capacity on the basis of the leaf spring 8.

[0024] When needed, holes can be made in the support plate 12, and screws can be connected to the ground through the holes to fix the support plate 12 to the ground, thereby improving the support capacity.

[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0026] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pressure-resistant protective airtight door, comprising a door frame (1), characterized in that, A door panel (3) is rotatably connected to one side edge of the door frame (1). A dispersing plate (4) is connected to the middle of one side of the door panel (3). An inner groove is opened in the door panel (3), and a buffer pad (5) is fixedly connected to one side wall of the inner groove. A connecting plate (9) is fixedly connected to one end of the dispersing plate (4), and a leaf spring (8) is provided in the inner groove. The connecting plate (9) is fixedly connected to the leaf spring (8) in the inner groove through its side wall away from the dispersing plate (4). The dispersing plate (4) has an arc-shaped structure, and there is a hollow structure between the dispersing plate (4) and the connecting plate (9).

2. The pressure-resistant protective airtight door as described in claim 1, characterized in that, A connecting plate (6) is fixedly connected to one side of the buffer pad (5). The four side walls of the connecting plate (6) slide against the inner wall of the inner groove. Three sliding grooves (7) are evenly opened on the side wall of the connecting plate (6) away from the buffer pad (5).

3. The pressure-resistant protective airtight door as described in claim 2, characterized in that, Each of the grooves (7) has two sliders slidably connected. The leaf spring (8) has an arc-shaped structure. The leaf spring (8) is rotatably connected to one end of the two sliders through its two ends. The leaf spring (8) is fixedly connected to the side wall of the connecting plate (9) through its center point.

4. The pressure-resistant protective airtight door as described in claim 1, characterized in that, The connecting plate (9) extends into the inner groove, and the connecting plate (9) slides against the inner wall of the inner groove. The dispersing plate (4) is located in the middle of the door frame (1). The dispersing plate (4) and the leaf spring (8) are both elastic steel structures.

5. A pressure-resistant protective airtight door as described in claim 1, characterized in that, A baffle (2) is fixedly connected to the inner wall of the door frame (1) away from the edge of the door panel (3). The baffle (2) has a U-shaped structure. One side of the baffle (2) is attached to the edge of the door panel (3). The dispersion plate (4) extends 3-5cm from the middle of the baffle (2).

6. The pressure-resistant protective airtight door as described in claim 1, characterized in that, A storage groove (15) is provided on the side of the door panel (3) away from the dispersion plate (4) and near the bottom. A follower plate (10) is rotatably connected to the top of the storage groove (15). A telescopic plate (11) is telescopically connected to the follower plate (10). A support plate (12) is rotatably connected to the edge of the telescopic plate (11) away from the follower plate (10). Adjustment grooves (13) are evenly provided on the two side walls of the telescopic plate (11) that are far apart from each other. A positioning groove (14) is provided on the two side walls of the follower plate (10) that are far apart from each other and opposite to the adjustment grooves (13). A pin is inserted into the positioning groove (14).

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