Reinforced concrete single-leaf protective airtight door

Abstract

The utility model discloses a reinforced concrete single-leaf protective air-tight door which comprises a door frame, sliding grooves are formed in the upper side and the lower side of the same end in the door frame, air-tight door buffering mechanisms are arranged in the sliding grooves and comprise double sliding rods, buffering springs and buffering air cushions, the double sliding rods are fixedly connected into the sliding grooves, and the buffering springs are arranged in the buffering air cushions. Double sliding rods are arranged on the outer side of the door frame, buffer springs are connected to the outer sides of the double sliding rods in a sleeved mode, a single-leaf air-tight door is arranged on the inner side of the door frame, a buffer air cushion is arranged on the periphery of one side of the single-leaf air-tight door, and the side, located in the door, of the single-leaf air-tight door is connected with a liquid level observation pipe. The buffer spring and the buffer air cushion are extruded on the extension opening to deform, so that the impact on the single air-tight door can be effectively relieved, if accumulated water appears outside the door, the height of the accumulated water outside the door can be clearly observed by observing the height of the floating ball in the liquid level observation pipe, and the operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, in particular to a reinforced concrete single-leaf protective closed door. Background Art

[0002] Protective sealed doors are generally set at the outermost side of entrances and exits and have the function of blocking shock waves. Protective sealed doors should be able to block shock waves and meet the corresponding resistance requirements. Reinforced concrete protective sealed doors adopt flat opening type. According to the number of door leaves, there are single-leaf civil air defense doors and double-leaf civil air defense doors. Single-leaf doors are generally used for smaller personnel entrances and exits, and double-leaf doors are generally used for larger vehicle entrances and exits.

[0003] However, at present, when the protective sealed door is subjected to external impact, it can only rely on the compression resistance of the door body itself. This method has certain limitations. In addition, if there is flood weather and water accumulates outside the door, it is not easy for the people inside the door to understand the water level outside the door. They can only judge through the surrounding monitoring. If the resistance is cut off, they cannot understand the situation. Therefore, a reinforced concrete single-leaf protective sealed door is provided to solve the above problems. Utility Model Content

[0004] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problem is: a reinforced concrete single-leaf protective airtight door, which includes: a door frame, wherein sliding grooves are provided on the upper and lower sides of the same end of the door frame, and a closed door buffer mechanism is arranged inside the sliding groove, and the closed door buffer mechanism includes double sliding rods, buffer springs and buffer air cushions, double sliding rods are fixedly connected to the inside of the sliding groove, and buffer springs are sleeved on the outside of the double sliding rods, a single-leaf closed door is arranged on the inner side of the door frame, and the buffer air cushion is arranged around one side of the single-leaf closed door, and the single-leaf closed door is connected to a liquid level observation tube on one side inside the door.

[0005] As a preferred technical solution of the utility model, the double sliding rod is slidably connected with a slider, the slider is located at one end of the single-leaf closed door and is connected to a shaft rod through a bearing, and the shaft rod is connected to the single-leaf closed door at the opposite end of the slider.

[0006] As a preferred technical solution of the utility model, the liquid level observation tube is made of a transparent material, a connecting groove is longitudinally opened inside the liquid level observation tube, and a float is arranged inside the connecting groove.

[0007] As a preferred technical solution of the utility model, the liquid level observation tube is provided with limit blocks at both ends of the connecting groove, and a through pipe is provided inside the end of the single-leaf closed door facing the limit block, and the through pipe is connected with the inside of the connecting groove.

[0008] As a preferred technical solution of the utility model, one end of the through pipe extends to the outside of the single-leaf closed door and a limiting cap is provided, and the number of the through pipes is two.

[0009] As a preferred technical solution of the utility model, the single-leaf enclosed door is provided with a handle on one side of the liquid level observation tube, and the door frame is provided with an outward octagonal inclined opening on the side outside the door.

[0010] As a preferred technical solution of the utility model, the door frame is provided with an extension opening on one side of the buffer air cushion, the extension opening is in contact with one side of the buffer air cushion, and the interior of the buffer air cushion is a hollow structure.

[0011] The utility model has the following advantages: when the single-leaf sealed door is impacted outside, the single-leaf sealed door will move toward the inside of the door, and then deform on the extension opening by squeezing the buffer spring and the buffer air cushion, which can effectively reduce the impact on the single-leaf sealed door;

[0012] If water accumulates outside the door, you can observe the height of the float inside the liquid level observation tube to clearly know the height of the water outside the door. It is convenient and quick, and the water outside the door will not enter the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the door frame structure of a preferred embodiment of the utility model;

[0015] Figure 3 This is a schematic cross-sectional view of a single-leaf closed door of a preferred embodiment of the utility model;

[0016] Figure 4 It is the preferred embodiment of the utility model Figure 1 A magnified schematic diagram of structure A;

[0017] Figure 5 It is the preferred embodiment of the utility model Figure 3 Schematic diagram of structure B.

[0018] Explanation of the reference numerals: 1. Door frame; 2. Slide groove; 3. Double slide rod; 4. Buffer spring; 5. Slider; 6. Axle rod; 7. Single-leaf closed door; 8. Buffer air cushion; 9. Liquid level observation tube; 10. Connecting groove; 11. Float; 12. Limit block; 13. Through pipe; 14. Limit cap; 15. Handle; 16. Outward eight inclined opening; 17. Extension opening. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The utility model will be further described below in conjunction with the accompanying drawings.

[0022] Please refer to Figure 1-Figure 5 The utility model discloses a reinforced concrete single-leaf protective closed door, comprising: a door frame 1, a slide groove 2 is provided on both upper and lower sides of the same end of the door frame 1, a closed door buffer mechanism is arranged inside the slide groove 2, the closed door buffer mechanism comprises a double sliding rod 3, a buffer spring 4 and a buffer air cushion 8, a double sliding rod 3 is fixedly connected inside the slide groove 2, and a buffer spring 4 is sleeved on the outer side of the double sliding rod 3, a single-leaf closed door 7 is arranged on the inner side of the door frame 1, and the buffer air cushion 8 is arranged around one side of the single-leaf closed door 7, and a liquid level observation tube 9 is connected to the single-leaf closed door 7 on one side inside the door.

[0023] Combination Figure 1 and Figure 4As shown, the double sliding rod 3 is slidably connected with a slider 5, and the slider 5 is located at one end of the single-leaf sealed door 7 and is connected to an axle rod 6 through a bearing. The axle rod 6 facilitates the single-leaf sealed door 7 to rotate open or close, and the axle rod 6 is connected to the single-leaf sealed door 7 at the opposite end of the slider 5. The liquid level observation tube 9 is made of transparent material, and a connecting groove 10 is longitudinally opened inside the liquid level observation tube 9. A floating ball 11 is arranged inside the connecting groove 10. The liquid level observation tube 9 is located at the upper and lower ends of the connecting groove 10 and is provided with limiting blocks 12. The limiting blocks 12 facilitate the floating ball 11 to be limited. A through pipe 13 is arranged inside the end of the single-leaf sealed door 7 facing the limiting block 12, and water can enter the connecting groove 10 through the through pipe 13. The through pipe 13 is connected with the inside of the connecting groove 10, and one end of the through pipe 13 extends to the outside of the single-leaf sealed door 7 to be provided with a limiting cap 14, and the number of through pipes 13 is set to two.

[0024] Among them, the single-leaf enclosed door 7 is provided with a handle 15 on one side of the liquid level observation tube 9, and the door frame 1 is provided with an outward octagonal inclined opening 16 on the side outside the door, so as to facilitate opening or closing the single-leaf enclosed door 7, and the door frame 1 is provided with an extension opening 17 on one side of the buffer air cushion 8, and the extension opening 17 is in contact with one side of the buffer air cushion 8, and the interior of the buffer air cushion 8 is a hollow structure.

[0025] Specifically, in the present invention, when the single-leaf sealed door 7 is closed and the single-leaf sealed door 7 is impacted outside, the single-leaf sealed door 7 will move toward the inside of the door, and the slider 5 on the single-leaf sealed door 7 will move along the slide groove 2 toward the inside of the door, and the slider 5 will squeeze the buffer spring 4, and at the same time, the buffer air cushion 8 of the single-leaf sealed door 7 located at the inner periphery of the door will be squeezed on the extension opening 17 to deform, thereby effectively reducing the impact on the single-leaf sealed door 7;

[0026] If water accumulates outside the door, the person inside the door can clearly know the height of the water outside the door by observing the height of the float 11 inside the liquid level observation tube 9, so there is no need to open the single-leaf sealed door 7 for inspection, which is convenient and quick, and the water outside the door will not enter the door.

[0027] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0028] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. Reinforced concrete single-leaf protective closed door, including: A door frame (1), characterized in that a slide groove (2) is provided on both upper and lower sides of the same end of the door frame (1), a closed door buffer mechanism is provided inside the slide groove (2), the closed door buffer mechanism comprises a double slide rod (3), a buffer spring (4) and a buffer air cushion (8), a double slide rod (3) is fixedly connected inside the slide groove (2), the outer sides of the double slide rod (3) are sleeved with a buffer spring (4), a single closed door (7) is provided on the inner side of the door frame (1), the buffer air cushion (8) is provided around one side of the single closed door (7), and a liquid level observation tube (9) is connected to the side of the single closed door (7) located inside the door.

2. The reinforced concrete single-leaf protective closed door according to claim 1, characterized in that: The double sliding rod (3) is slidably connected to a sliding block (5); one end of the sliding block (5) located on the single-leaf sealed door (7) is connected to a shaft rod (6) via a bearing; the shaft rod (6) is connected to the single-leaf sealed door (7) at the opposite end to the sliding block (5).

3. The reinforced concrete single-leaf protective closed door according to claim 1, characterized in that: The liquid level observation tube (9) is made of a transparent material, a connecting groove (10) is longitudinally opened inside the liquid level observation tube (9), and a floating ball (11) is arranged inside the connecting groove (10).

4. The reinforced concrete single-leaf protective closed door according to claim 1, characterized in that: The liquid level observation tube (9) is located at both upper and lower ends of the communication groove (10) and is provided with limit blocks (12); a through pipe (13) is provided inside the end of the single-leaf sealed door (7) facing the limit block (12); and the through pipe (13) is in communication with the inside of the communication groove (10).

5. The reinforced concrete single-leaf protective closed door as claimed in claim 4, characterized in that: One end of the through pipe (13) extends to the outside of the single-leaf sealed door (7) and is provided with a limiting cap (14), and the number of the through pipes (13) is two.

6. The reinforced concrete single-leaf protective closed door according to claim 1, characterized in that: The single-leaf sealed door (7) is provided with a handle (15) on one side of the liquid level observation tube (9), and the door frame (1) is provided with an outward octagonal inclined opening (16) on the side outside the door.

7. The reinforced concrete single-leaf protective closed door according to claim 1, characterized in that: The door frame (1) is provided with an extension opening (17) on one side of the buffer air cushion (8); the extension opening (17) fits one side of the buffer air cushion (8); and the interior of the buffer air cushion (8) is a hollow structure.

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