Ventilation protection device for civil air defense engineering

Abstract

The utility model discloses a civil air defense construction ventilation protection device which comprises an air inlet pipe and a connecting pipe arranged at the end of the air inlet pipe, and a protection net is arranged on the inner side of the connecting pipe. Two ventilation frames capable of sliding up and down are arranged on the protective net, a ventilation channel penetrating through gap holes in the surface of the protective net is formed in the local surface of the protective net so that airflow can be guided to penetrate through the gap through holes from the side, close to the air inlet pipe, of the protective net to flow to the other side, and impurities on the protective net are removed. The design structure is reasonable, the ventilation frame is buckled on the protective net on the two sides of the protective net to form a ventilation channel penetrating through gap holes in the surface of the protective net, suction force is generated on the side, away from the air inlet pipe, of the protective net, air flow rapidly passes through the gap holes, winged insects and sundries on the surface are sucked out and separated from the protective net, and the ventilation effect is good. The protective net is prevented from being blocked after being used for a long time, and the problems that in the prior art, some impurities are prone to remaining on the protective net during long-time use, the protective net is blocked, and airflow circulation is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense engineering, specifically to a civil air defense engineering ventilation protection device. BACKGROUND

[0002] Civil air defense engineering refers to underground protective buildings that are independently built to protect personnel and materials, air defense command and medical treatment in wartime, and basements that can be used for air defense in wartime in combination with ground buildings, in order to ensure the internal air flow of the civil air defense engineering protection device, a ventilation device needs to be used to ensure that the internal personnel can obtain safe and clean air.

[0003] A ventilation device is disclosed in Chinese Utility Model Patent No. CN221403351U, which filters the incoming air by setting an air filter at the air inlet pipe, and sets a protective net at the inlet to prevent mosquitoes from entering the purification chamber through the connecting pipe and air inlet pipe. However, in long-term use, some impurities are easily left on the protective net, causing the protective net to be blocked and affecting the flow effect of the airflow. UTILITY MODEL CONTENT

[0004] The utility model aims to make up for the shortcomings of the prior art and provides a civil air defense engineering ventilation protection device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A civil air defense engineering ventilation protection device includes an air inlet pipe and a connecting pipe arranged at the end of the air inlet pipe, and a protective net is arranged on the inner side of the connecting pipe.

[0007] A cleaning assembly is arranged on the protective net to clean the impurities on the protective net.

[0008] The cleaning assembly includes two ventilation frames that can slide up and down, and the two ventilation frames are symmetrically arranged on both sides of the protective net to form a ventilation passage through the gap hole on the surface of the protective net. The air inlet end of the ventilation passage is communicated with the air inlet pipe, and the air outlet end of the ventilation passage is communicated with the driving assembly to guide the airflow to flow from one side of the protective net close to the air inlet pipe to the other side through the gap hole, thereby cleaning the impurities on the protective net.

[0009] Further, the bottom of the connecting pipe is symmetrically provided with a first opening; the bottom of the connecting pipe is fixedly connected with a storage box, and the top of the storage box is provided with a second opening, so that the storage box and the connecting pipe are communicated through the first opening and the second opening.

[0010] The inner side of the storage box is provided with a lifting structure, and the top of the lifting structure is sequentially penetrated through the second opening and the first opening and connected with the ventilation frame to drive the ventilation frame to move up and down.

[0011] Further, the top of the ventilation frame is further provided with a sealing cover plate, the sealing cover plate is adapted to the shape and size of the first opening, and the size of the first opening is larger than that of the ventilation frame, so that the sealing cover plate closes the first opening after the ventilation frame moves into the storage box.

[0012] Further, the driving assembly comprises a dust collecting structure arranged in the storage box, one end of the dust collecting structure is connected with a first flexible hose, and the other end of the first flexible hose is in communication with the corresponding ventilation frame.

[0013] The other end of the dust collecting structure is connected with a driving structure, the bottom of the driving structure is connected with the bottom of the storage box, and the output end of the driving structure penetrates the bottom of the storage box.

[0014] The bottom of the other ventilation frame is in communication with one end of a second flexible hose, the other end of the second flexible hose penetrates the first opening, the second opening and the storage box in sequence, and the end is in communication with the air inlet pipe.

[0015] Further, a mounting assembly is arranged between the protective net and the connecting pipe, for mounting the protective net.

[0016] The mounting assembly comprises a third positioning frame, the outer side of the third positioning frame is fixedly connected with the inner side of the connecting pipe, one side of the third positioning frame is detachably connected with a positioning structure, one side of the positioning structure is connected with the protective net, and the protective net is mounted.

[0017] Further, the positioning structure comprises a first positioning frame, one side of the first positioning frame is provided with a groove, and the protective net is arranged in the groove.

[0018] One side of the first positioning frame is detachably connected with a second positioning frame, one side of the second positioning frame close to the first positioning frame is located on the side of the protective net away from the groove, for extruding and fixing the protective net.

[0019] Further, one side of the first positioning frame is fixedly connected with a plug rod;

[0020] One side of the second positioning frame is provided with a first positioning hole corresponding to the plug rod, and the inner wall of the first positioning hole is clamped with the outer side of the plug rod.

[0021] One side of the third positioning frame is provided with a second positioning hole corresponding to the plug rod, and the second positioning hole is clamped with the end of the plug rod.

[0022] Further, the opposite sides of the protective net are respectively provided with a plurality of first sealing plates and second sealing plates, and a plurality of first sealing plates and second sealing plates are arranged in sequence at equal distances, so as to divide the surface of the protective net into a plurality of ventilation areas.

[0023] The distance between two first sealing plates adjacent to each other is adapted to the height of the ventilation frame, and the side of the first sealing plate and the second sealing plate away from the protective net is coplanar with the side of the corresponding ventilation frame close to the protective net, so that the ventilation frame covers the ventilation area in turn.

[0024] Compared with the prior art, the ventilation protection device for the civil air defense project has the following beneficial effects:

[0025] Firstly, the utility model discloses a protective net is arranged in the connecting pipe, and a set of ventilation frames are symmetrically arranged on the two sides of the protective net, the ventilation frames are buckled on the protective net on the two sides of the protective net, a ventilation channel passing through the surface gap hole of the protective net is formed, suction force is generated on the side of the protective net away from the air inlet pipe, air flow passes through the gap hole quickly, surface flying insects and sundries are sucked out and separated from the protective net, so that the problem that the protective net is blocked after long time use is solved.

[0026] Secondly, the utility model discloses that the first positioning frame, the second positioning frame and the third positioning frame are arranged on the outer side of the protective net and are connected through the insertion rod, so that the protective net can be disassembled conveniently, and the first sealing plate and the second sealing plate are arranged, so that the sealing effect between the ventilation frame and the protective net is maintained when the ventilation frame is cleaned, the protective net is further supported, and the stability of the protective net is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0028] Figure 2 It is a sectional view of the ventilation frame in the utility model;

[0029] Figure 3 It is a schematic view of the three-dimensional structure of the ventilation frame in the utility model;

[0030] Figure 4 It is a sectional view of the connecting pipe in the utility model;

[0031] Figure 5 It is a schematic view of the exploded structure of the utility model;

[0032] Figure 6 It is a sectional view of the storage box in the utility model;

[0033] Figure 7 It is a sectional view of the collecting cylinder in the utility model.

[0034] In the figure: 1, the air inlet pipe; 2, connecting pipe; 3, storage box; 4, protective net; 5, ventilation frame; 6, collection cylinder; 7, telescopic rod; 8, first opening; 9, sealing cover plate; 10, first flexible hose; 11, first sealing plate; 12, second sealing plate; 13, first positioning frame; 14, second positioning frame; 15, third positioning frame; 16, insertion rod; 17, dust collection bag; 18, partition. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] As Figures 1-7 shown, the utility model provides a technical scheme: a civil air defense engineering ventilation protection device, including air inlet pipe 1 and setting in air inlet pipe 1 end connecting pipe 2, the inside of connecting pipe 2 is provided with protective net 4;Protective net 4 is provided with cleaning assembly, is used for cleaning the sundries on protective net 4, to prevent affecting ventilation;Cleaning assembly includes two up and down sliding ventilation frame 5, two ventilation frame 5 is symmetrically set up in the both sides of protective net 4, the height of ventilation frame 5 is less than the height of protective net 4, and the local surface on protective net 4 forms a ventilation passage that passes through the surface gap hole of protective net 4, and the air inlet end of ventilation passage is communicated with air inlet pipe 1, and the air outlet end of ventilation passage is communicated with drive assembly, to guide airflow from the side of protective net 4 close to air inlet pipe 1 to flow to the other side through gap hole, and the sundries on protective net 4 are cleaned.

[0037] In use, the filter structure is arranged between the air inlet pipe 1 and the connecting pipe 2 to preliminarily filter the air, the protective fence is arranged on the inner side of the end of the connecting pipe 2 away from the air inlet pipe 1 to avoid large objects from flying in, and the flying insects and sundries are blocked by the protective net 4, then when cleaning is needed, the ventilation frame 5 is moved up and down to cover the surface of the protective net 4 by the ventilation frame 5 assembly, and a large suction force is formed in the corresponding ventilation frame 5 by the drive assembly, the air preliminarily filtered in the air inlet pipe 1 enters the corresponding ventilation frame 5, then passes through the holes of the partially covered protective net 4, and the surface sundries are sucked into the drive assembly to prevent the protective net 4 from being blocked;The protective net 4 can be made of stainless steel insect screen.

[0038] The bottom of the connecting pipe 2 is symmetrically provided with a first opening 8; the bottom of the connecting pipe 2 is fixedly connected with a storage box 3, the top of the storage box 3 is provided with a second opening, so that the storage box 3 and the connecting pipe 2 are communicated through the first opening 8 and the second opening; the inner side of the storage box 3 is provided with a lifting structure, the top of the lifting structure penetrates the second opening and the first opening 8 in sequence and is connected with the ventilation frame 5, for driving the ventilation frame 5 to move up and down; in use, the lifting structure is an electric telescopic rod 7, and the number is two groups, the bottoms of the two groups of telescopic rods 7 are fixedly connected to the bottom of the storage box 3, and the tops are fixedly connected to the bottoms of the corresponding ventilation frames 5, and the telescopic rod 7 is further provided with a controller, so as to stop the ventilation frame 5 at a proper height.

[0039] The top of the ventilation frame 5 is further provided with a sealing cover plate 9, the shape and size of the sealing cover plate 9 are adapted to the shape and size of the first opening 8, and the size of the first opening 8 is larger than the size of the ventilation frame 5, so that after the ventilation frame 5 moves to the inside of the storage box 3, the sealing cover plate 9 closes the first opening 8; in use, when the ventilation frame 5 moves to the lowest position, the sealing cover plate 9 is just located at the first opening 8, which closes the first opening 8, avoiding that sundries enter the inside of the storage box 3 when not in use.

[0040] The driving assembly comprises a dust collecting structure arranged in the storage box 3, one end of the dust collecting structure is connected with a first flexible hose 10, the other end of the first flexible hose 10 is communicated with the corresponding ventilation frame 5; the other end of the dust collecting structure is connected with a driving structure, the bottom of the driving structure is connected with the bottom of the storage box 3, and the output end of the driving structure penetrates the bottom of the storage box 3; the bottom of the other ventilation frame 5 is communicated with one end of a second flexible hose, the other end of the second flexible hose penetrates the first opening 8, the second opening and the storage box 3 in sequence, and the end is communicated with the air inlet pipe 1.

[0041] In use, the middle of the storage box 3 is fixedly connected with a partition plate 18, the top of the partition plate 18 is fixedly connected with the bottom of the connecting pipe 2, for isolating the two first openings 8, avoiding that the flying insects bypass the protective net 4, the top of the first flexible hose 10 penetrates the second opening and the first opening 8 in sequence and is communicated with the bottom of the ventilation frame 5, and the length is adapted to the height of the ventilation frame 5 when moving to the highest position, so as to keep the communication with the ventilation frame 5, and the diameter size is larger than the size of the sundries on the protective net 4, preventing the first flexible hose 10 from being blocked; the second flexible hose is located on the side of the filter element away from the connecting pipe 2 of the air inlet pipe 1, so as to extract the preliminarily filtered gas, so as to improve the cleaning effect of the protective net 4.

[0042] The mounting assembly is arranged between the protective net 4 and the connecting pipe 2 and is used for mounting the protective net 4. The mounting assembly comprises a third positioning frame 15, the outer side of the third positioning frame 15 is fixedly connected with the inner side of the connecting pipe 2, one side of the third positioning frame 15 is detachably connected with a positioning structure, one side of the positioning structure is connected with the protective net 4 and is used for mounting the protective net 4. The positioning structure comprises a first positioning frame 13, one side of the first positioning frame 13 is provided with a groove, and the protective net 4 is arranged in the groove. One side of the first positioning frame 13 is detachably connected with a second positioning frame 14, one side of the second positioning frame 14 close to the first positioning frame 13 is located on the side of the protective net 4 away from the groove and is used for extruding and fixing the protective net 4. In use, the thickness of the groove is adapted to the thickness of the protective net 4, so that the protective net 4 is extruded and fixed.

[0043] One side of the first positioning frame 13 is fixedly connected with a plug rod 16. One side of the second positioning frame 14 is provided with a first positioning hole corresponding to the plug rod 16, and the inner wall of the first positioning hole is clamped with the outer side of the plug rod 16. One side of the third positioning frame 15 is provided with a second positioning hole corresponding to the plug rod 16, and the second positioning hole is clamped with the end of the plug rod 16. In use, the protective net 4 is first placed in the groove, and then the second positioning frame 14 is slid along the plug rod 16 to the clamped position of the plug rod 16 and the first positioning hole. At this time, the plug rod 16 penetrates through the first positioning hole, and the protective net 4 is extruded in the groove by the second positioning frame 14, so that the protective net 4 is fixed. Then, the plug rod 16 is clamped with the third positioning frame 15, so that the protective net 4 is further detachably mounted on the third positioning frame 15.

[0044] The protective net 4 is provided with a plurality of first sealing plates 11 and second sealing plates 12 on opposite sides, respectively, and the first sealing plates 11 and the second sealing plates 12 are arranged in sequence at equal distances opposite to each other, so as to divide the surface of the protective net 4 into a plurality of ventilation areas; the distance between two first sealing plates 11 adjacent to each other in the up-down direction is adapted to the height of the ventilation frame 5 in the up-down direction, and the side of the first sealing plate 11 and the second sealing plate 12 away from the protective net 4 is coplanar with the side of the corresponding ventilation frame 5 close to the protective net 4, so as to make the ventilation frame 5 cover the ventilation areas in sequence; in use, the first sealing plate 11 is fixedly connected with the inner wall of the first positioning frame 13, the second sealing plate 12 is fixedly connected with the inner wall of the third positioning frame 15, and the side of the first sealing plate 11 and the second sealing plate 12 away from the protective net 4 is coplanar with the corresponding first positioning frame 13 and third positioning frame 15, so as to facilitate the ventilation frame 5 to contact, and the position of the ventilation frame 5 corresponding to the first sealing plate 11 and the second sealing plate 12 is provided with a sealing ring, and the width of the first sealing plate 11 and the second sealing plate 12 is at least greater than the sum of the diameters of two adjacent holes on the protective net 4, and the diameters of the holes on the protective net 4 are all adapted, so as to keep a certain sealing effect on the covered area, so that the suction force can clean the sundries on the protective net 4, and the first sealing plate 11 and the second sealing plate 12 support the protective net 4, so as to improve the stability of the protective net 4.

[0045] The dust collection structure comprises a collection cylinder 6, the bottom of the collection cylinder 6 is detachably connected with the inner wall of the storage box 3, one end of the collection cylinder 6 is detachably connected with one end of the first flexible hose 10, and the other end of the collection cylinder 6 is in communication with the driving structure; a dust collection bag 17 is detachably connected to the inner side of the collection cylinder 6 close to the first flexible hose 10; in use, the driving structure adopts an air suction pump, the detachable connection can be fixed by means of clamping threads, and a detachable cover plate is arranged on the front of the storage box 3, so as to facilitate the disassembly of the collection cylinder 6 and the cleaning of the dust collection bag 17.

Claims

1. A people's air defense engineering ventilation protection device, comprising an air inlet pipe (1) and a connecting pipe (2) arranged at the end of the air inlet pipe (1), and a protective net (4) is arranged on the inner side of the connecting pipe (2), characterized in that: a cleaning assembly is arranged on the protective net (4) for cleaning sundries on the protective net (4); the cleaning assembly comprises two ventilation frames (5) which are symmetrically arranged on both sides of the protective net (4) and can slide up and down, and a ventilation channel passing through a gap hole on the surface of the protective net (4) is formed on the partial surface of the protective net (4), the air inlet end of the ventilation channel communicates with the air inlet pipe (1), and the air outlet end of the ventilation channel communicates with a driving assembly to guide airflow to flow from one side of the protective net (4) close to the air inlet pipe (1) to the other side through the gap hole, so as to clean the sundries on the protective net (4). The bottom of the connecting pipe (2) is symmetrically provided with a first opening (8); the bottom of the connecting pipe (2) is fixedly connected with a storage box (3), and the top of the storage box (3) is provided with a second opening, so that the storage box (3) and the connecting pipe (2) communicate through the first opening (8) and the second opening; The inner side of the storage box (3) is provided with a lifting structure, the top of the lifting structure sequentially penetrates the second opening and the first opening (8) and is connected with the ventilation frame (5) for driving the ventilation frame (5) to move up and down.

2. The civil defense ventilation guard of claim 1, wherein: The top of the ventilation frame (5) is further provided with a sealing cover plate (9), the shape and size of the sealing cover plate (9) are adapted to the shape and size of the first opening (8), and the size of the first opening (8) is greater than the size of the ventilation frame (5), so that after the ventilation frame (5) moves to the inside of the storage box (3), the sealing cover plate (9) closes the first opening (8). The driving assembly comprises a dust collecting structure arranged in the storage box (3), one end of the dust collecting structure is connected with a first flexible hose (10), and the other end of the first flexible hose (10) communicates with the corresponding ventilation frame (5); 3. The civil defense ventilation guard of claim 2, wherein: The other end of the dust collecting structure is connected with a driving structure, the bottom of the driving structure is connected with the bottom of the storage box (3), and the output end of the driving structure penetrates the bottom of the storage box (3); 4. The civil defense ventilation guard of claim 2, wherein: In addition, the bottom of the other ventilation frame (5) communicates with one end of a second flexible hose, the other end of the second flexible hose sequentially penetrates the first opening (8), the second opening and the storage box (3), and the end communicates with the air inlet pipe (1). A mounting assembly is further arranged between the protective net (4) and the connecting pipe (2) for mounting the protective net (4); The mounting assembly comprises a third positioning frame (15), the outer side of the third positioning frame (15) is fixedly connected with the inner side of the connecting pipe (2), one side of the third positioning frame (15) is detachably connected with a positioning structure, and one side of the positioning structure is connected with the protective net (4) for mounting the protective net (4).

5. The civil defense ventilation guard of claim 1, wherein: ​ ​ 6. The civil defense ventilation guard of claim 5, wherein: The positioning structure comprises a first positioning frame (13), one side of the first positioning frame (13) is provided with a groove, and the protective net (4) is arranged in the groove; One side of the first positioning frame (13) is detachably connected with a second positioning frame (14), the second positioning frame (14) is located on the side, away from the groove, of the protective net (4) and close to one side of the first positioning frame (13), and is used for extruding and fixing the protective net (4).

7. The civil defense ventilation guard of claim 6, wherein: One side of the first positioning frame (13) is fixedly connected with a plug rod (16); One side of the second positioning frame (14) is provided with a first positioning hole corresponding to the plug rod (16), and the inner wall of the first positioning hole is clamped with the outer side of the plug rod (16); One side of the third positioning frame (15) is provided with a second positioning hole corresponding to the plug rod (16), and the second positioning hole is clamped with the end of the plug rod (16).

8. The civil defense ventilation guard of claim 1, wherein: The opposite sides of the protective net (4) are respectively provided with a plurality of first sealing plates (11) and second sealing plates (12), and the plurality of first sealing plates (11) and second sealing plates (12) are arranged in sequence at equal distances and downwards, so that the surface of the protective net (4) is divided into a plurality of ventilation areas; The distance between the two first sealing plates (11) adjacent to each other is adapted to the height of the ventilation frame (5) in the up-down direction, and the side, away from the protective net (4), of the first sealing plate (11) and the second sealing plate (12) is coplanar with the side, close to the protective net (4), of the corresponding ventilation frame (5), so that the ventilation frame (5) covers the ventilation areas in sequence.

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