Civil air defense overpressure exhaust structure

Abstract

The utility model discloses a civil air defense overpressure exhaust structure which comprises an airtight wall, an airtight door and a plurality of overpressure exhaust devices, specifically, the airtight wall is provided with a door opening, the airtight door is arranged at the door opening, the overpressure exhaust structure is arranged on the airtight wall and protrudes towards a first space, and the overpressure exhaust devices are arranged in the first space. The multiple overpressure exhaust devices are distributed at intervals in the transverse direction and arranged above the door opening. In the embodiment provided by the utility model, the overpressure exhaust device is transversely arranged and arranged above the door opening, so that the use function of an effective use space, such as a parking space or a lane, cannot be influenced, and a civil air defense opening path cannot be blocked. According to the arrangement mode of the overpressure exhaust device, space occupation of the overpressure exhaust device in the prior art can be effectively improved, and the space layout is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a civil air defense engineering technical field, concretely relates to a civil air defense overpressure exhaust structure. BACKGROUND

[0002] The overpressure automatic exhaust valve is a ventilation equipment for automatically exhausting under a certain pressure difference of the civil air defense basement in the filter poison ventilation system work in the civil air defense engineering. In the conventional basement design, the overpressure automatic exhaust valve is arranged at the airtight wall of the main entrance and exit in the civil air defense time, and the overpressure automatic exhaust valve is automatically started by the air pressure difference on both sides of the valve, and has the shock wave residual pressure function. The overpressure exhaust valve is usually arranged in several vertical directions, and is arranged on one side of the airtight wall.

[0003] This arrangement mode causes the part protruding from the airtight wall to easily occupy the effective space and affect the space layout. For example, when the valve is arranged near the parking space or the driveway, the use function of the effective use space may be occupied, such as the parking space or the driveway; when the valve is arranged in the opening range of the civil air defense door, the opening angle of the civil air defense door is affected. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a civil air defense overpressure exhaust structure capable of improving the adverse effect on the use function of the effective space and optimizing the space layout.

[0005] To solve the above technical problems, the utility model provides a protection structure, which comprises:

[0006] An airtight wall is used for separating a first space and a second space, and a door opening is formed in the airtight wall;

[0007] An airtight door is installed in the door opening in an openable and closable manner; and

[0008] An overpressure exhaust device is arranged on the airtight wall and protrudes towards the first space, and a plurality of overpressure exhaust devices are arranged in a spaced apart manner along the transverse direction and above the door opening.

[0009] Optionally, each overpressure exhaust device comprises a pre-buried pipe, a connecting pipe and a valve assembly, a plurality of holes are formed in the airtight wall, the plurality of holes are arranged above the airtight door, each pre-buried pipe is correspondingly pre-buried in each hole, the connecting pipe is welded to the end of the corresponding pre-buried pipe towards the first space, and the valve assembly is welded to the end of the corresponding connecting pipe away from the pre-buried pipe.

[0010] Optionally, an outer periphery of each of the embedded pipes is formed with a first reinforcing ring and a second reinforcing ring in a spaced distribution, the first reinforcing ring is embedded in the airtight wall, the second reinforcing ring is arranged between the first reinforcing ring and an end of the embedded pipe facing the indoor, one end side of the second reinforcing ring is embedded in the airtight wall, and the other end side is flush with a wall surface of the airtight wall facing the first space.

[0011] Optionally, each of the embedded pipes partially protrudes from the airtight wall and extends to the first space, and an end of each of the embedded pipes facing the first space is provided with a flange, and the flange is welded with the connecting pipe.

[0012] Optionally, a pipe section of the valve assembly connected by each of the connecting pipes is arranged in a gradually expanding trumpet shape.

[0013] Optionally, a length of the connecting pipe of each of the overpressure exhaust devices is different in a transverse direction.

[0014] Optionally, a plurality of the connecting pipes arranged in a transverse direction include a plurality of first pipe sections and a plurality of second pipe sections, a length of the first pipe section is greater than that of the second pipe section, and the plurality of first pipe sections and the plurality of second pipe sections are alternately distributed in a transverse direction.

[0015] Optionally, among a plurality of the holes arranged in a transverse direction, each of two adjacent holes in a transverse direction is at least partially staggered in a vertical direction.

[0016] Optionally, the airtight wall further embeds a reinforcing steel bar surrounding an outer periphery of each of the holes, the reinforcing steel bar includes four groups of diagonal reinforcing bars, each group of the diagonal reinforcing bars is parallel to a wall surface of the airtight wall and extends obliquely in a vertical direction, and four groups of the diagonal reinforcing bars are crosswise arranged around an outer periphery of a corresponding hole.

[0017] Optionally, a center distance of each of two adjacent holes in a transverse direction is not less than 500 mm, and a distance between a center of each of the holes and a top end of the door hole is greater than or equal to 500 mm.

[0018] The technical scheme provided by the utility model has the following advantages:

[0019] The utility model provides a civil air defense overpressure exhaust structure, including airtight wall, airtight door and overpressure exhaust device, specifically, the door hole is set up on airtight wall, and airtight door sets up at the door hole, overpressure exhaust structure sets up on the airtight wall, and protrudes to first space, overpressure exhaust device is provided with a plurality of, a plurality of overpressure exhaust device is interval distribution along the transverse, and sets up above the door hole, in the embodiment provided by the utility model, overpressure exhaust device is arranged along the transverse, and is arranged above the door hole, does not affect the use function of effective use space, for example parking space or driveway, also can not cause the obstruction on civil air defense opening path. The arrangement mode of the overpressure exhaust device can effectively improve the space occupation of overpressure exhaust device in the prior art, and the space layout is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0021] Figure 1 It is the cutaway schematic view of the embodiment of the civil air defense overpressure exhaust structure provided by the utility model;

[0022] Figure 2 It is the cutaway schematic view of the embodiment of the civil air defense overpressure exhaust structure provided by the utility model; Figure 1 It is the front view of the civil air defense overpressure exhaust structure in the room side;

[0023] Figure 3 It is the cutaway view of A-A in the embodiment of the civil air defense overpressure exhaust structure provided by the utility model; Figure 2

[0024] Figure 4 It is the cutaway view of B-B in the embodiment of the civil air defense overpressure exhaust structure provided by the utility model; Figure 3

[0025] Figure 5 It is the cutaway view of C-C in the embodiment of the civil air defense overpressure exhaust structure provided by the utility model; Figure 3

[0026] Figure 6 It is the enlarged schematic view of overpressure exhaust device in the embodiment of the civil air defense overpressure exhaust structure provided by the utility model; Figure 2

[0027] It is the front view of another embodiment of the civil air defense overpressure exhaust structure provided by the utility model. Figure 7 BRIEF DESCRIPTION OF DRAWINGS

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] ​​​1 - sealing wall; 11 - door opening; 12 - sealing door; 20 - overpressure exhaust device; 21 - embedded pipe; 211 - first reinforcing ring; 212 - second reinforcing ring; 213 - flange; 22 - connecting pipe; 221 - first pipe section; 222 - second pipe section; 23 - valve assembly; 30 - reinforcing steel bar; 100 - first space; 200 - second space. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0031] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0032] Please refer to Figures 1 to 7 The present application provides an overpressure exhaust structure for civil air defense engineering, wherein the overpressure exhaust structure comprises a sealing wall 1, a sealing door 12 and an overpressure exhaust device 20. The sealing wall 1 serves to seal the space in the civil air defense basement, and is usually a cast-in-place reinforced concrete structure. Specifically, the sealing wall 1 is used to separate a first space 100 and a second space 200, i.e. one side of the sealing wall 1 faces the first space 100, and the other side faces the second space 200. Among them, the first space 100 refers to the civil air defense space that needs to be sealed, and the second space 200 refers to the outdoor space, or the space that can directly communicate with the outdoor space. Generally, the sealing wall 1 is provided as a partition wall between the clean area and the contaminated area. Further, a door opening 11 is formed on the sealing wall 1, and the height of the door opening 11 is generally not less than 2 meters.

[0033] The sealing door 12 is installed in the door opening 11 in an openable and closable manner, and the sealing door 12 is generally provided as a civil air defense door, which is firm and reliable in structure, and has the functions of fireproofing, waterproofing and smoke-proofing. The overpressure exhaust device 20 is also provided on the sealing wall 1 and protrudes into the first space 100. The overpressure exhaust device 20 is arranged in multiple numbers along the transverse direction and above the door opening 11. Compared with the vertical arrangement in the prior art, the installation position and layout of the overpressure exhaust device 20 do not affect the use function of the effective use space, such as a parking space or a driveway, and do not cause obstruction on the civil air defense opening path, thereby effectively improving the space occupation of the overpressure exhaust device 20 in the prior art and optimizing the space layout.

[0034] Further, please continue to refer to Figures 3 to 6, each of the overpressure exhaust devices 20 comprises a pre-embedded pipe 21, a connecting pipe 22, and a valve assembly 23, a plurality of holes are formed on the air-tight wall 1, and the plurality of holes are arranged above the air-tight door 12. Preferably, the distance between the center of each hole and the top end of the door hole 11 is greater than or equal to 500 mm, and the distance between the centers of every two adjacent holes in the transverse direction is not less than 500 mm, so as to ensure the structural strength above the door hole 11.

[0035] Each of the pre-embedded pipes 21 is correspondingly pre-embedded in each of the holes, the connecting pipe 22 is welded to the end of the corresponding pre-embedded pipe 21 towards the first space 100, and the valve assembly 23 is welded to the end of the corresponding connecting pipe 22 away from the pre-embedded pipe 21. In this way, the pre-embedded pipe 21 can be positioned in advance before pouring the air-tight wall 1, and is formed together with the air-tight wall 1, and then the connecting pipe 22 and the valve assembly 23 are welded in sequence by welding. The valve assembly 23 is an overpressure exhaust valve, which is automatically opened when the pressure difference between the first space 100 and the second space 200 is greater than a certain value, thereby playing a role in resisting the residual pressure of the shock wave. The specific structure of the valve assembly 23 refers to the overpressure exhaust valve in the prior art, which will not be described here.

[0036] Preferably, the outer periphery of each of the pre-embedded pipes 21 is formed with a first reinforcing ring 211 and a second reinforcing ring 212 which are spaced apart, the first reinforcing ring 211 is embedded in the air-tight wall 1, the second reinforcing ring 212 is arranged between the first reinforcing ring 211 and the end of the pre-embedded pipe 21 towards the indoor side, one end side of the second reinforcing ring 212 is embedded in the air-tight wall 1, and the other end side is flush with the wall surface of the air-tight wall 1 towards the first space 100. The first reinforcing ring 211 and the second reinforcing ring 212 play a role in radially positioning the pre-embedded pipe 21, and on the other hand, increase the contact area between the outer surface of the pre-embedded pipe 21 and the structure of the air-tight wall 1, and strengthen the mechanical strength of the pre-embedded pipe 21.

[0037] Further, each of the pre-embedded pipes 21 partially protrudes from the air-tight wall 1 and extends to the first space 100, and the end of each of the pre-embedded pipes 21 towards the first space 100 is provided with a flange 213, and the connecting pipe 22 is welded to the flange 213. In this way, after the air-tight wall 1 is formed, the welding operation can be more conveniently performed, and the connecting pipe 22 is welded to the flange 213 of the pre-embedded pipe 21, which facilitates construction and improves construction efficiency.

[0038] Optionally, the pipe section of each of the connecting pipes 22 connecting the valve assembly 23 is arranged in a gradually expanding trumpet shape. In this way, the airflow is slowed down before entering the first space 100, avoiding the airflow from being too strong to cause damage when rushing into the basement.

[0039] In an embodiment, the lengths of the connecting pipes 22 of every two adjacent overpressure exhaust devices 20 in the lateral direction are different. In this embodiment, the overpressure exhaust devices 20 have different lengths, which can solve the problem that the wall surface cannot be reserved for installation, optimize the installation process, reduce installation problems caused by space limitations or inconvenient operation, facilitate regular inspection, cleaning or replacement of parts, effectively reduce costs, and reduce maintenance difficulty.

[0040] Specifically, referring to Figure 3 The plurality of connecting pipes 22 arranged in the lateral direction include a plurality of first pipe segments 221 and a plurality of second pipe segments 222, the lengths of the first pipe segments 221 are greater than those of the second pipe segments 222, and the plurality of first pipe segments 221 and the plurality of second pipe segments 222 are alternately distributed in the lateral direction. The overpressure exhaust devices 20 are alternately and fixedly extended by different lengths, which further improves the layout of the plurality of overpressure exhaust devices 20, optimizes the installation process, reduces installation problems caused by space limitations or inconvenient operation, facilitates regular inspection, cleaning or replacement of parts, effectively reduces costs, and reduces maintenance difficulty.

[0041] Based on the above-mentioned embodiments, preferably, referring to Figure 7 Among the plurality of holes arranged in the lateral direction, every two adjacent holes in the lateral direction are at least partially staggered in the vertical direction. In this way, the structural strength is enhanced by reducing the defects caused by excessive hollowing in the horizontal direction of the sealing wall 1.

[0042] Based on the above-mentioned embodiments, preferably, referring to Figure 2 The sealing wall 1 is further embedded with reinforcing steel bars 30, and the reinforcing steel bars 30 are arranged around the outer periphery of each hole 20. Specifically, the reinforcing steel bars 30 include four groups of inclined steel bars, each group of inclined steel bars is parallel to the wall surface of the sealing wall 1 and extends in the vertical direction, and the four groups of inclined steel bars are arranged around the outer periphery of the corresponding hole 20 in a cross manner. In this way, the shear resistance of the sealing wall 1 above the door opening 11 is improved, and the structural strength is increased.

[0043] Obviously, the above-mentioned embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, those skilled in the art can make other different forms of changes or modifications without creative labor, which should all belong to the protection scope of the present application.

Claims

1. A civil air defense overpressure exhaust structure, characterized in that, include: A closed wall is used to separate the first space and the second space, and a door opening is opened in the closed wall; A sealed door, mounted in the door opening in an openable and closable manner; as well as, An overpressure exhaust device is arranged on the enclosed wall and protrudes toward the first space. There are multiple overpressure exhaust devices, which are distributed at intervals in the transverse direction and are arranged above the door opening.

2. The human defense overpressure exhaust structure according to claim 1, wherein Each of the overpressure exhaust devices includes a pre-buried pipe, a connecting pipe, and a valve assembly. A plurality of holes are opened on the closed wall, and the plurality of holes are arranged above the closed door. Each of the pre-buried pipes is correspondingly pre-buried in each of the holes. The connecting pipe is welded to the end of the corresponding pre-buried pipe facing the first space, and the valve assembly is welded to the end of the corresponding connecting pipe away from the pre-buried pipe.

3. The human defense overpressure exhaust structure according to claim 2, wherein The outer periphery of each embedded pipe is respectively formed with a first reinforcement ring and a second reinforcement ring distributed at intervals. The first reinforcement ring is embedded in the enclosed wall, and the second reinforcement ring is arranged between the first reinforcement ring and the end of the embedded pipe facing the room. One end side of the second reinforcement ring is embedded in the enclosed wall, and the other end side is flush with the wall surface of the enclosed wall facing the first space.

4. The human defense overpressure exhaust structure according to claim 3, wherein Each of the embedded pipes partially protrudes from the closed wall and extends to the first space, and a flange is provided at the end of each of the embedded pipes facing the first space, and the connecting pipe is welded to the flange.

5. The human defense overpressure exhaust structure according to claim 2, wherein The pipe section of each connecting pipe connected to the valve assembly is arranged in a gradually expanding trumpet shape.

6. The human defense overpressure exhaust structure according to any one of claims 2 to 5, wherein The lengths of the connecting pipes of each two adjacent overpressure exhaust devices in the transverse direction are different.

7. The human defense overpressure exhaust structure according to claim 6, wherein The multiple connecting pipes arranged in the transverse direction include multiple first pipe segments and multiple second pipe segments. The length of the first pipe segments is greater than that of the second pipe segments. The multiple first pipe segments and the multiple second pipe segments are alternately distributed in the transverse direction.

8. The human defense overpressure exhaust structure according to any one of claims 2 to 5, wherein Among the plurality of holes arranged in the transverse direction, every two adjacent holes in the transverse direction are at least partially staggered in the vertical direction.

9. The human defense overpressure exhaust structure according to any one of claims 2 to 5, wherein The enclosed wall is also embedded with reinforcing steel bars arranged around the outer periphery of each of the holes. The reinforcing steel bars include four groups of oblique bars. Each group of the oblique bars is parallel to the wall surface of the enclosed wall and extends obliquely in the up and down directions. The four groups of the oblique bars are arranged in pairs and cross-shaped around the outer periphery of the corresponding holes.

10. The human defense overpressure exhaust structure according to any one of claims 2 to 5, wherein In the transverse direction, the center distance between each two adjacent holes is not less than 500 mm, and the distance between the center of each hole and the top of the door opening is greater than or equal to 500 mm.

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