Soundproof civil air defense door

Abstract

The utility model relates to a sound insulation civil air defence door, and aims at solving the technical problem that the current civil air defence door bottom contacts with the ground through the supporting wheel, the door body bottom and the door frame cannot be combined to the maximum extent, the noise is transmitted into the door, and the sound insulation effect is seriously affected, including the door frame, the both sides of door frame are connected with the civil air defence door body through the rotary seat swing joint, the outer end wall of civil air defence door body is assembled with the steel tube, the middle part side wall of civil air defence door body is fixedly connected with the handrail, the rear side wall upside of door frame is fixedly connected with the door closer, the lower end side wall of steel tube is fixedly connected with the locating seat, the utility model has the rotary handle and drives the limiting plate, and the civil air defence door body is limited, satisfies the daily pedestrian traffic, also can increase the traffic width through the opening double-leaf door, the civil air defence door lower end is supported through the supporting wheel, makes the civil air defence door body and the door frame maximum degree of adhesion, effectively improves the sound insulation effect of door panel, thereby improves the sound insulation performance of the civil air defence door.

Description

Technical Field

[0001] This utility model relates to the field of civil defense doors, specifically a soundproof civil defense door. Background Technology

[0002] Civil defense doors are the doors at the entrances and exits of civil defense projects. This type of door was the first to be standardized and has been widely used. Its characteristics are simple structure, reliable operation, and convenient maintenance. It is suitable for the entrances and exits of various civil defense projects. However, because it has a threshold, it is less commonly used in projects with frequent personnel and vehicle access, such as underground shopping malls that combine peacetime and wartime functions. Instead, movable threshold doors or drop doors of the same size and load rating are used.

[0003] Patent application CN221169308U discloses a soundproof air-raid shelter door, comprising a door body, an outer wall of which is fitted with a steel cladding, and load-bearing mechanisms fitted on both sides of the lower end of the steel cladding. A fixed base is fitted at the bottom of the load-bearing mechanism, and a wheel frame is fitted on the side wall of the fixed base. Support wheels are fitted inside the wheel frame. A drive cavity is formed inside the door body, and a transmission mechanism is fitted inside the drive cavity. Protective pads are fitted inside the steel cladding on both sides of the outer wall of the door body. Rectangular limiting holes a are formed on the upper and lower sides and the left and right sides of the door body, and rectangular limiting holes b are formed on the upper and lower sides and the left and right sides of the steel cladding. After installation, the bottom of the soundproof air-raid shelter door contacts the ground via the support wheels, facilitating subsequent opening and closing of the door. The support wheels also support the lower end of the door, reducing its weight and effectively protecting the door frame, thus enhancing the practicality of the device.

[0004] However, in practical applications, the bottom of traditional air-raid shelter doors contacts the ground through support wheels, and the bottom of the door body and the door frame cannot fit together to the maximum extent, leaving a certain gap. Noise can still pass through the gap and enter the door, seriously affecting the sound insulation effect. For example, after the air-raid shelter door is installed, its bottom contacts the ground through support wheels, which facilitates the opening and closing of the air-raid shelter door. However, with the support wheels in contact with the ground, the bottom of the door body and the door frame cannot fit together to the maximum extent, leaving a certain gap. Noise can still pass through the gap, which seriously affects the sound insulation effect. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a soundproof door to solve the technical problem that the current support wheels are in contact with the ground, the bottom of the door body and the door frame cannot fit together to the maximum extent, there is a certain gap, and noise can still pass through the gap, which seriously affects the sound insulation effect.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a soundproof air defense door is designed, including a door frame, the two sides of the door frame are movably connected to the air defense door body through rotating seats, the outer end wall of the air defense door body is fitted with steel, the middle side wall of the air defense door body is fixedly connected with a handrail, the upper side of the rear side wall of the door frame is fixedly connected with a door top device, and the lower end side wall of the steel is fixedly connected with a positioning seat.

[0007] In this solution, the sound insulation effect of the door panel is effectively improved by using the door frame and the main body of the air-raid shelter door together.

[0008] Preferably, a regulating valve is fixedly connected to one end of the top door device, and a handle is fixedly connected to one side of the top door device.

[0009] In practical applications, by adjusting the regulating valve and rotating the handle to control the direction of the handle position, it is convenient to perform limit control on the device.

[0010] Preferably, a limiting plate is fixedly connected to the bottom end of the handle, and the limiting plate is movably connected to the main body of the air defense door.

[0011] In practical applications, the handle drives the limit plate to limit the main body of the air-raid shelter door, making it easy to open or close the main body of the air-raid shelter door according to the needs of the site.

[0012] Preferably, a support rod is slidably connected inside the positioning seat, and a screw is rotatably connected inside the bottom end of the support rod, the screw engaging with the internal thread of the support rod.

[0013] In practical applications, the screw is displaced within the cavity of the support rod by the cooperation of the support rod and the screw.

[0014] Preferably, a nut is fixedly connected to the bottom of the screw, a screw cap is fixedly connected to the bottom of the nut, and a fixing seat is fixedly connected to the bottom of the screw cap.

[0015] In practical applications, by rotating the nut, the screw is moved out of the inner cavity of the support rod, and the fixing seat plays a role in fixing and supporting the position of the door.

[0016] Preferably, the fixed base has a movable cavity, and the movable cavity has a middle plate and an outer plate, with the four corners of the outer plate and the middle plate being hinged to each other.

[0017] In practical applications, the middle plate and the outer plate work together to support the lower end of the air-raid shelter door, effectively protecting the door frame and thus enhancing the practicality of the device.

[0018] Preferably, a hydraulic rod is fixedly connected to the inner wall of the fixed base, the output end of the hydraulic rod is fixedly connected to the four corners of the middle plate, a wheel frame is fixedly connected to the side wall of the fixed base, and a support wheel is rotatably connected inside the wheel frame.

[0019] In practical applications, the support wheels contact the ground, which not only facilitates the opening and closing of the main body of the air-raid shelter door, but also effectively protects the door frame, allowing the main body of the air-raid shelter door to fit the door frame to the greatest extent, greatly reducing the transmission of noise, and thus improving the sound insulation performance of the air-raid shelter door.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model combines an adjusting valve and a limiting plate. By rotating the handle, the limiting plate is driven to limit the main body of the air-raid shelter door. It can effectively open and close two air-raid shelter doors according to the needs of the site. Staff can open two air-raid shelter doors or a single door as needed to meet the passage of pedestrians. Alternatively, the passage width can be increased by opening the double doors to facilitate the use of the air-raid shelter door.

[0021] 2. This utility model, through the combination of adjustment devices and the contact of support wheels with the ground, facilitates the opening and closing of the air-raid shelter door. The support wheels support the lower end of the air-raid shelter door, which can reduce the weight of the main body of the air-raid shelter door, effectively protect the door frame, and allow the main body of the air-raid shelter door to fit the door frame to the greatest extent. This significantly reduces the amount of noise passing through the gap between the door panel and the door frame, effectively improves the sound insulation effect of the door panel, reduces the transmission of sound, and thus improves the sound insulation performance of the air-raid shelter door. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the back of this utility model; Figure 2 This is a schematic diagram of the overall front structure of this utility model; Figure 3 This is a schematic diagram of the limiting mechanism structure of this utility model; Figure 4 This is a schematic diagram of the support structure of this utility model; Figure 5 This is a cross-sectional structural diagram of the support mechanism of this utility model.

[0023] In the diagram: 100, door frame; 110, rotating seat; 120, main body of the air-raid shelter door; 130, steel casing; 140, handrail; 150, door jack; 160, regulating valve; 170, handle; 180, limit plate; 200. Positioning seat; 210. Support rod; 220. Screw; 230. Nut; 240. Nut; 250. Fixed seat; 260. Movable cavity; 261. Middle plate; 262. Outer plate; 263. Hydraulic rod; 270. Wheel frame; 271. Support wheel. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A soundproof air defense door, see [link to example]. Figures 1 to 3 The system includes a door frame 100, with a civil defense door body 120 movably connected to both sides of the door frame 100 via a rotating seat 110. The outer end wall of the civil defense door body 120 is fitted with a steel plate 130. A handrail 140 is fixedly connected to the middle side wall of the civil defense door body 120. A door jack 150 is fixedly connected to the upper side of the rear side wall of the door frame 100. A positioning seat 200 is fixedly connected to the lower end side wall of the steel plate 130. A regulating valve 160 is fixedly connected to one end of the door jack 150. A handle 170 is fixedly connected to one side of the door jack 150. A limit plate 180 is fixedly connected to the bottom end of the handle 170. The limit plate 180 is movably connected to the civil defense door body 120. The outer fixing sleeve 130 of the main body 120 of the air-raid shelter door is integrated into a single structure to protect the main body 120. A fixing device is installed on the bottom side wall of the steel sleeve 130 to support it. After installation, the bottom of the air-raid shelter door contacts the ground via support wheels 271, facilitating the opening and closing of the main body 120. The fixing device and support wheels 271 also support the lower end of the air-raid shelter door, reducing the weight of the main body 120 and effectively protecting the door frame 100. This allows for maximum fit between the main body 120 and the door frame 100, significantly reducing noise transmission through the gaps between the door panel and the door frame 100, effectively improving the sound insulation performance of the door panel and reducing sound propagation.

[0025] For details, see Figure 4 and Figure 5 The positioning seat 200 has a support rod 210 slidably connected inside. The bottom end of the support rod 210 is rotatably connected to a screw 220. The screw 220 is engaged with the internal thread of the support rod 210. The bottom of the screw 220 is fixedly connected to a nut 230. The bottom end of the nut 230 is fixedly connected to a nut 240. The bottom of the nut 240 is fixedly connected to a fixing seat 250. The fixing seat 250 has a movable cavity 260. The movable cavity 260 has a middle plate 261 and an outer plate 262. The four corners of the outer plate 262 and the middle plate 261 are hinged to each other. The inner wall of the fixing seat 250 is fixedly connected to a hydraulic rod 263. The output end of the hydraulic rod 263 is fixedly connected to the four corners of the middle plate 261. The side wall of the fixing seat 250 is fixedly connected to a wheel frame 270. The wheel frame 270 is rotatably connected to a support wheel 271. By adjusting the position of the nut 230 of the screw 220, the screw 220 can be displaced within the cavity of the support rod 210. By rotating the nut 230, the screw 220 gradually moves out of the cavity of the support rod 210, so that each support wheel 271 is in contact with the ground. After the air-raid shelter door is installed, its bottom is in contact with the ground through the support wheel 271, which facilitates the opening and closing of the air-raid shelter door. The lower end of the air-raid shelter door is supported by the hydraulic rod 263 and the outer plate 262, which can reduce the weight of the air-raid shelter door, effectively maintain the door frame 100, and thus enhance the practicality of the device.

[0026] In practical application, this solution works as follows: As construction workers require, the outer fixing assembly of the main body 120 of the air-raid shelter door is fitted with a steel cladding 130, forming an integrated structure that protects the main body 120. A fixing device is installed on the bottom side wall of the steel cladding 130 for support. After installation, the bottom of the air-raid shelter door contacts the ground via support wheels 271, facilitating the opening and closing of the main body 120. Furthermore, the fixing device and support wheels 271 support the lower end of the air-raid shelter door, reducing the weight of the main body 120 and effectively protecting the door frame 10. The maintenance of the door body 120 allows for maximum fit between the door frame 100 and the main body 120, significantly reducing noise transmission through the gaps between the door panel and the door frame 100. This effectively improves the sound insulation of the door panel and reduces sound propagation, thereby enhancing the sound insulation performance of the door. By adjusting the position of the nut 230 of the screw 220, the screw 220 can be displaced within the cavity of the support rod 210. Rotating the nut 230 gradually moves the screw 220 out of the cavity of the support rod 210, ensuring that each support wheel 271 contacts the ground. After the door is installed, its bottom is supported by the support wheels 271. 71 is in contact with the ground, facilitating the opening and closing of the subsequent air-raid shelter door. The lower end of the air-raid shelter door is supported by the hydraulic rod 263 and the outer plate 262, reducing the weight of the air-raid shelter door and effectively protecting the door frame 100, thereby enhancing the practicality of the device. By adjusting the regulating valve 160 and rotating the handle 170, the position of the handle 170 is controlled. The handle 170 drives the limit plate 180, which limits the air-raid shelter door body 120. This allows for the effective opening and closing of two air-raid shelter door bodies 120 according to on-site needs, ensuring that only one air-raid shelter door body 120 is opened at a time. Specifically, both air-raid shelter door bodies 120 can only be opened towards the door frame 100. The door has a one-way opening and closing mechanism on the back. A door jack 150 is fixedly installed on the top of the main body 120 of the air-raid shelter door on the door frame 100. When the door jack 150 is movably connected to the main body 120 of the air-raid shelter door, the main body 120 of the air-raid shelter door cannot be opened and acts as a door jack. Only the other main body 120 of the air-raid shelter door can be opened. That is, only one main body 120 of the air-raid shelter door can be opened at a time. At the same time, the adjusting valve 160 adjusts the position of the handle 170. In this way, staff can open two main bodies 120 of the air-raid shelter door or a single door as needed to meet the daily passage of pedestrians. The passage width can also be increased by opening double doors to facilitate the use of the air-raid shelter door.

[0027] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A soundproof blast door, characterized in that, The door frame (100) is movably connected to the air defense door body (120) on both sides of the door frame (100) via rotating seats (110). The outer end wall of the air defense door body (120) is fitted with a steel plate (130). A handrail (140) is fixedly connected to the middle side wall of the air defense door body (120). A door jack (150) is fixedly connected to the upper side of the rear side wall of the door frame (100). A positioning seat (200) is fixedly connected to the lower side wall of the steel plate (130).

2. The soundproof air defense door as described in claim 1, characterized in that, One end of the top door device (150) is fixedly connected to a regulating valve (160), and a handle (170) is fixedly connected to one side of the top door device (150).

3. A soundproof blast door as described in claim 2, characterized in that, The bottom end of the handle (170) is fixedly connected to a limiting plate (180), and the limiting plate (180) is movably connected to the main body (120) of the air defense door.

4. A soundproof evacuation door as described in claim 1, characterized in that, The positioning seat (200) is slidably connected to a support rod (210), and a screw (220) is rotatably connected to the bottom end of the support rod (210). The screw (220) is engaged with the internal thread of the support rod (210).

5. A soundproof evacuation door as described in claim 4, characterized in that, The bottom of the screw (220) is fixedly connected to a nut (230), the bottom of the nut (230) is fixedly connected to a nut (240), and the bottom of the nut (240) is fixedly connected to a fixing seat (250).

6. A soundproof evacuation door as described in claim 5, characterized in that, The fixed base (250) is provided with a movable cavity (260), and the movable cavity (260) is provided with a middle plate (261) and an outer plate (262). The four corners of the outer plate (262) and the middle plate (261) are hinged to each other.

7. A soundproof blast door as described in claim 6, characterized in that, A hydraulic rod (263) is fixedly connected to the inner wall of the fixed seat (250). The output end of the hydraulic rod (263) is fixedly connected to the four corners of the middle plate (261). A wheel frame (270) is fixedly connected to the side wall of the fixed seat (250). A support wheel (271) is rotatably connected inside the wheel frame (270).

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