Fireproof and explosion-proof civil defense air-tight door

Abstract

The utility model relates to the technical field of civil air defense safety, and discloses a fireproof and explosion-proof civil air defense air-tight door which comprises a ground, a door frame is arranged at the top of the ground, a civil air defense air-tight door body is arranged outside the door frame, and an auxiliary driving assembly tightly attached to the top of the ground is arranged in the civil air defense air-tight door body. And two buffer assemblies which are symmetrically distributed up and down are arranged outside the civil defense air-tight door. According to the fireproof and explosion-proof civil defense air-tight door, by arranging an auxiliary driving assembly, when closing is needed, an electric push rod is started to drive a driving auxiliary wheel to be tightly attached to the inner bottom wall of an arc-shaped moving groove in the ground, at the moment, a driving motor is started to drive the driving auxiliary wheel to move in the arc-shaped moving groove through an output shaft, and a certain auxiliary closing effect is achieved; the civil defense air-tight door can be conveniently closed by people with small strength, then the purpose of conveniently closing the civil defense air-tight door is achieved, the practicability of the device is further improved, and the device is convenient to use by workers.

Description

Technical Field

[0001] This utility model relates to the field of civil defense safety technology, specifically a fireproof and explosion-proof airtight door for civil defense. Background Technology

[0002] Civil defense doors are mainly divided into ordinary single and double-leaf protective airtight doors, and single and double-leaf protective airtight doors with movable thresholds. During use, they can effectively shelter personnel and materials, and also play a role in fire prevention.

[0003] When the airtight door of a civil defense facility is closed, it will make a hard collision with the frame, which can easily damage the frame and the door. Secondly, the airtight door of a civil defense facility is large and heavy, and it is difficult for people with less strength to close it. Therefore, a fireproof and explosion-proof airtight door of a civil defense facility is proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a fireproof and explosion-proof airtight door for air defense, which has the advantages of avoiding damage to the frame door due to impact and facilitating the closing of the airtight door. It solves the problems that when the airtight door is closed, it will have a hard collision with the frame, which will easily cause damage to the frame door. Secondly, the airtight door is large and heavy, which makes it difficult for people with less strength to close it.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned purpose of avoiding damage to the frame door due to impact and facilitating the closing of the airtight airtight door, this utility model provides the following technical solution: a fireproof and explosion-proof airtight airtight door, including a ground, a door frame is provided on the top of the ground, an airtight airtight door is provided outside the door frame, an auxiliary drive assembly is provided inside the airtight door that fits tightly against the top of the ground, and two buffer assemblies are provided outside the airtight door that are symmetrically distributed vertically.

[0008] The auxiliary drive assembly includes an electric push rod. The inner top wall of the airtight door is provided with an electric push rod. The output end of the electric push rod is provided with a U-shaped frame. The front side of the inner wall of the U-shaped frame is provided with a drive motor. The output shaft of the drive motor is provided with a drive auxiliary wheel that is rotatably connected to the rear side of the inner wall of the U-shaped frame.

[0009] The buffer assembly includes a sleeve. Two sleeves are provided on the outside of the airtight door and are symmetrically distributed vertically. The inner walls of the two sleeves are provided with buffer pads. A buffer spring is provided inside the sleeve between the buffer pad and the airtight door.

[0010] Preferably, the outside of the door frame is provided with a groove that matches the buffer pad.

[0011] Preferably, the top of the ground is provided with an arc-shaped moving groove that is adapted to the moving trajectory of the drive auxiliary wheel.

[0012] Preferably, a rubber pad is fixedly connected to the side of the buffer pad away from the airtight door.

[0013] Preferably, the inner top wall and inner bottom wall of the door frame are provided with lock grooves.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a fireproof and explosion-proof airtight door for air-raid shelters, which has the following beneficial effects:

[0016] 1. This fireproof and explosion-proof airtight door for civil defense uses a buffer assembly. With the cooperation of buffer pads, buffer springs and sleeves, the buffer pads and buffer springs can buffer the hard impact when the airtight door is closed, preventing the impact force from being fully applied to the door frame and causing damage. This achieves the purpose of avoiding damage to the door frame due to impact and improves the practicality of the device.

[0017] 2. This fireproof and explosion-proof airtight door for civil defense uses an auxiliary drive component. When closing is required, the electric push rod is activated to drive the auxiliary drive wheel to fit tightly against the inner bottom wall of the arc-shaped moving groove on the ground. At this time, the drive motor is activated and drives the auxiliary drive wheel to move in the arc-shaped moving groove through the output shaft, which plays a certain role in assisting the closing. This makes it easier for people with less strength to close the door, thereby achieving the purpose of conveniently closing the airtight door for civil defense and further improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partial cross-sectional view of the connection between the airtight door for civil defense and the auxiliary drive assembly of this utility model.

[0020] In the diagram: 1. Ground; 2. Door frame; 3. Air-raid shelter door; 4. Auxiliary drive assembly; 41. Electric push rod; 42. U-shaped frame; 43. Drive motor; 44. Drive auxiliary wheel; 5. Buffer assembly; 51. Sleeve; 52. Buffer pad; 53. Buffer spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-2 A fireproof and explosion-proof airtight door for civil defense includes a ground 1, a door frame 2 fixedly connected to the top of the ground 1, an airtight door 3 for civil defense provided on the outside of the door frame 2, and lock grooves provided on the inner top wall and inner bottom wall of the door frame 2.

[0023] An auxiliary drive assembly 4 is fixedly connected inside the airtight door 3 and is tightly fitted to the top of the ground 1. The auxiliary drive assembly 4 includes an electric push rod 41. The electric push rod 41 is fixedly connected to the inner top wall of the airtight door 3. A U-shaped frame 42 is fixedly connected to the output end of the electric push rod 41. A drive motor 43 is fixedly connected to the front side of the inner wall of the U-shaped frame 42. A drive auxiliary wheel 44 is fixedly connected to the output shaft of the drive motor 43 and is rotatably connected to the rear side of the inner wall of the U-shaped frame 42. An arc-shaped moving groove adapted to the moving trajectory of the drive auxiliary wheel 44 is opened on the top of the ground 1.

[0024] The airtight door 3 is externally fixedly connected to two buffer components 5, which are symmetrically distributed vertically. Each buffer component 5 includes a sleeve 51. The airtight door 3 is externally fixedly connected to two sleeves 51, which are symmetrically distributed vertically. The inner walls of the two sleeves 51 are slidably connected to buffer pads 52. The door frame 2 has a groove on its exterior that matches the buffer pads 52. The side of the buffer pads 52 closest to the airtight door 3 is fixedly connected to the airtight door 3 with a buffer spring 53 located inside the sleeve 51. The side of the buffer pads 52 away from the airtight door 3 is fixedly connected to a rubber pad.

[0025] It is worth noting that both the electric push rod 41 and the drive motor 43 appearing in this application are externally connected to control switches and drive power supplies. Furthermore, both the electric push rod 41 and the drive motor 43 are conventional and known devices. The standard parts used in this application can all be purchased from the market. The specific connection methods of each part are all connected using conventional methods such as bolts, rivets, and welding, which are mature in the prior art. Moreover, the machinery, parts, and equipment all use conventional models in the prior art. In addition, the circuit connection uses conventional connection methods in the prior art. The contents not described in detail in the description belong to the prior art known to those skilled in the art, and will not be described in detail here.

[0026] In summary, this fireproof and explosion-proof airtight door for civil defense, by incorporating a buffer assembly 5, works in conjunction with buffer pads 52, buffer springs 53, and sleeves 51. This allows the buffer pads 52 and buffer springs 53 to cushion the hard impact during closing, preventing the entire impact force from acting on the door frame and causing damage. This achieves the goal of preventing damage to the door frame from impacts, thus improving the practicality of the device. Furthermore, by incorporating an auxiliary drive assembly 4, when closing is required, the electric push rod 41 is activated to drive the auxiliary drive wheel 44. When the device is in close contact with the inner bottom wall of the arc-shaped moving groove on the ground 1, the drive motor 43 is started and drives the drive auxiliary wheel 44 to move in the arc-shaped moving groove through the output shaft, which plays a certain role in assisting the closing and makes it easier for people with less strength to close the door. This achieves the purpose of conveniently closing the airtight door for air defense, further improving the practicality of the device. It solves the problems that when the airtight door is closed, it will have a hard collision with the frame, which will easily cause damage to the frame and door. Secondly, the airtight door is large and heavy, and it is difficult for people with less strength to close it.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof and explosion-proof airtight door for air-raid shelters, comprising a ground surface (1), characterized in that: A door frame (2) is provided on the top of the ground (1), and an airtight door (3) is provided on the outside of the door frame (2). An auxiliary drive assembly (4) is provided inside the airtight door (3) and is tightly fitted to the top of the ground (1). Two buffer assemblies (5) are provided on the outside of the airtight door (3) and are symmetrically distributed vertically. The auxiliary drive assembly (4) includes an electric push rod (41). The inner top wall of the airtight door (3) is provided with an electric push rod (41). The output end of the electric push rod (41) is provided with a U-shaped frame (42). The front side of the inner wall of the U-shaped frame (42) is provided with a drive motor (43). The output shaft of the drive motor (43) is provided with a drive auxiliary wheel (44) that is rotatably connected to the rear side of the inner wall of the U-shaped frame (42). The buffer assembly (5) includes a sleeve (51). Two sleeves (51) are provided on the outside of the air-raid shelter door (3) and are symmetrically distributed vertically. The inner walls of the two sleeves (51) are provided with buffer pads (52). A buffer spring (53) is provided between the side of the buffer pad (52) near the air-raid shelter door (3) and the air-raid shelter door (3).

2. The fireproof and explosion-proof airtight door for air-raid shelters according to claim 1, characterized in that: The door frame (2) has a groove on its exterior that is compatible with the buffer pad (52).

3. The fireproof and explosion-proof airtight door for air-raid shelters according to claim 1, characterized in that: The top of the ground (1) is provided with an arc-shaped moving groove that is adapted to the moving trajectory of the drive auxiliary wheel (44).

4. The fireproof and explosion-proof airtight door for air-raid shelters according to claim 1, characterized in that: A rubber pad is fixedly connected to the side of the buffer pad (52) away from the airtight door (3).

5. A fireproof and explosion-proof airtight door for air-raid shelters according to claim 1, characterized in that: Lock grooves are provided on the inner top and bottom walls of the door frame (2).

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