Civil air defense construction ventilation device

Abstract

The utility model relates to the technical field of civil air defense ventilation, in particular to a civil air defense engineering ventilation device which comprises a ventilation pipe, a switching mechanism and a filter plate. A ventilation fan is detachably mounted in the ventilation pipe through a bolt; the number of the switching mechanisms is two, the two switching mechanisms are sequentially arranged at the air inlet end of the ventilation pipe, and the filter plate is detachably installed between the ventilation pipe and one switching mechanism. Through the arrangement of the two switching mechanisms, the ventilation fan does not need to be paused when the filter plate is replaced, ventilation work is conducted continuously, the ventilation efficiency is improved, through the arrangement of the switching mechanisms, the filter plate is convenient and rapid to disassemble and assemble, and the working efficiency is further improved.

Description

TECHNICAL FIELD

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

[0002] Civil air defense safety engineering refers to underground protective buildings built separately for protecting personnel and materials in wartime, air defense command and medical aid, and basements combined with ground buildings that can be used for air defense in wartime. In order to improve the air quality in civil air defense engineering, ventilation equipment is usually required.

[0003] The Chinese patent with the authorization announcement number CN222747407U discloses a kind of ventilation device for wisdom civil air defense engineering, including box, box is back hollow setting, still including detachable and set in filter plate of one side of box, fixedly connected in fixed frame of box, even fixedly connected on filter plate and box on installation component, fixed frame is set in cross, fan is rotatably connected on fixed frame, even fixedly connected on fixed frame there is installation component, installation component connects box inside;The utility model belongs to the technical field of civil air defense ventilation, specifically refers to a kind of ventilation device for wisdom civil air defense engineering, it is convenient to replace filter plate, avoid ventilation efficiency reduction, at the same time, it is convenient to expose fan, it is convenient to take out fan from box, avoid inconvenience to repair.

[0004] But the above-mentioned published scheme has the following shortcomings: when filter hole on filter plate is blocked by impurities in air, it needs to be disassembled and cleaned, and the work of fan needs to be stopped when disassembling filter plate, so that ventilation work cannot be continuously carried out, and work efficiency is reduced. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art, and provides a kind of civil air defense engineering ventilation device.

[0006] The technical scheme of the utility model: a kind of civil air defense engineering ventilation device, including ventilation pipe, its inside is detachably installed with ventilation fan by bolt;Switching mechanism is provided with two groups, two groups of switching mechanism are sequentially arranged in the air inlet end of ventilation pipe, and the switching mechanism includes connection box, which is installed at the top end of the ventilation pipe;Let the mouth, it is set in the bottom end of ventilation pipe and corresponds with connection box;Plugging seat is set in the inside of ventilation pipe and is inserted with let the mouth, plugging seat top end is provided with slide rod, slide rod top end extends to the outside of connection box top end and is slidably connected with connection box, and plugging seat cross section is T-shaped;And first limiting component, it is set in the top end of connection box, and slide rod is limited with ventilation pipe by first limiting component;And filter plate, it is detachably installed between ventilation pipe and one group of switching mechanism.

[0007] Preferably, the first limiting component is composed of a first fixing base installed on the connecting box, a plug rod slidingly inserted into the first fixing base, and a first elastic member installed between the first fixing base and one end of the plug rod.

[0008] Preferably, the slide rod is provided with two groups of insertion holes, and the plug rod is inserted into the insertion holes.

[0009] Preferably, the filter plate extends into the ventilation pipe through the clearance, and the top end of the filter plate abuts against the bottom end of the blocking seat, the bottom end of the filter plate is provided with a blocking plate, and the blocking plate abuts against the bottom end of the ventilation pipe; the bottom end of the ventilation pipe is provided with a second limiting component, and the blocking plate is limited by the second limiting component and the ventilation pipe.

[0010] Preferably, the second limiting component is composed of a second fixing base installed on the bottom end of the ventilation pipe, a plug plate slidingly inserted into the second fixing base, and a second elastic member installed between the second fixing base and one end of the plug plate, the second elastic member is a spring, the second elastic member is sleeved outside the plug plate, one side wall of the blocking plate is slidingly connected with the second fixing base, and the plug plate abuts against the bottom end of the blocking plate.

[0011] Preferably, the ventilation pipe is provided with a mounting seat inside the air outlet end, and a protective fence is detachably installed on the mounting seat by bolts.

[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects: the two groups of switching mechanisms are arranged, so that the filter plate can be replaced without stopping the work of the ventilation fan, the ventilation work is continuously carried out, the ventilation efficiency is improved, and the dismounting and mounting of the filter plate is convenient and fast, and the work efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a switching mechanism structure schematic view of the utility model;

[0015] Figure 3 It is a ventilation pipe structure schematic view of the utility model;

[0016] Figure 4 It is a second limiting component and blocking plate connection mode schematic view of the utility model.

[0017] : 1, ventilation pipe; 101, connecting box; 102, let the mouth; 103, guide groove; 104, mounting seat; 2, protective fence; 3, ventilation fan; 4, slide rod; 401, plugging seat; 402, jack; 403, plug rod; 404, first fixed seat; 405, first elastic piece; 5, filter plate; 501, plugging plate; 502, guide strip; 6, second fixed seat; 601, plug plate; 602, second elastic piece. DETAILED DESCRIPTION

[0018] Example One

[0019] As Figures 1 to 4 shown, the utility model provides a civil air defense engineering ventilation device, including ventilation pipe 1, switching mechanism and filter plate 5, ventilation pipe 1 inside is detachably installed with ventilation fan 3 through bolt, switching mechanism is provided with two groups, two groups switching mechanism are sequentially arranged in the air inlet end of ventilation pipe 1, and filter plate 5 is detachably installed between ventilation pipe 1 and one group switching mechanism.

[0020] Switching mechanism includes connecting box 101, let the mouth 102, plugging seat 401 and first limiting assembly, connecting box 101 is installed at the top end of ventilation pipe 1, let the mouth 102 is set up at the bottom end of ventilation pipe 1 and corresponds with connecting box 101, plugging seat 401 is set up in the inside of ventilation pipe 1 and is inserted with let the mouth 102, plugging seat 401 top end is provided with slide rod 4, and slide rod 4 top end extends to the outside setting of connecting box 101 top end and is slidably connected with connecting box 101, plugging seat 401 cross section is T-shaped, and plugging seat 401 outer surface is equipped with sealing gasket, improves the sealing property of plugging seat 401 and let the mouth 102 or with connecting box 101 abutment, avoids that external air is not filtered and along ventilation pipe 1 into the indoor of civil air defense engineering and causes pollution, first limiting assembly is set up at the top end of connecting box 101, and slide rod 4 is limited with ventilation pipe 1 by first limiting assembly.

[0021] Further, the first limiting assembly is composed of the first fixed seat 404 installed on the connecting box 101, the plug rod 403 slidably inserted into the first fixed seat 404, and the first elastic piece 405 installed between one end of the plug rod 403 and the first fixed seat 404. The first elastic piece 405 is a spring and is sleeved outside the plug rod 403.

[0022] Still further, the slide rod 4 is provided with two groups of jacks 402, and the plug rod 403 is inserted into the jacks 402.

[0023] Further, the filter plate 5 extends to the inside of the ventilation pipe 1 through the accommodation opening 102, and the top end of the filter plate 5 abuts against the bottom end of the sealing seat 401, and the bottom end of the filter plate 5 is provided with a sealing plate 501, the sealing plate 501 abuts against the bottom end of the ventilation pipe 1, and the filter plate 5 is provided with a guide strip 502, and the inner wall of the ventilation pipe 1 is provided with a guide groove 103, the guide strip 502 is slidably connected with the guide groove 103, the lifting of the filter plate 5 and the stability of the installation are improved, the abutting position of the sealing plate 501 and the ventilation pipe 1 is provided with a sealing gasket, and the sealing property of the connecting position of the filter plate 5 and the bottom end of the ventilation pipe 1 is improved; the bottom end of the ventilation pipe 1 is provided with a second limiting assembly, and the sealing plate 501 is limited with the ventilation pipe 1 through the second limiting assembly.

[0024] Further, the second limiting assembly is composed of a second fixing seat 6 installed at the bottom end of the ventilation pipe 1, a plug plate 601 slidably inserted into the second fixing seat 6, and a second elastic member 602, the second elastic member 602 is installed between one end of the plug plate 601 and the second fixing seat 6, the second elastic member 602 is a spring, the second elastic member 602 is sleeved outside the plug plate 601, one side wall of the sealing plate 501 is slidably connected with the second fixing seat 6, and the plug plate 601 abuts against the bottom end of the sealing plate 501.

[0025] In this embodiment, the ventilation pipe 1 is installed in the civil air defense engineering chamber through bolts, the ventilation fan 3 is started through the controller to extract the external air, and the external air is transported into the civil air defense engineering chamber for use after being filtered by the filter plate 5. When the filter holes on the filter plate 5 are blocked, the plug rod 403 in the other idle switching mechanism is pulled along the first fixed seat 404 first, so that the first elastic member 405 is stretched until the plug rod 403 is no longer inserted into the highest set of insertion holes 402 on the slide rod 4 to release the limiting, the slide rod 4 is slightly lifted by a suitable distance along the connecting box 101, the plug rod 403 is loosened, the insertion end of the plug rod 403 is abutted with the position of the side wall of the slide rod 4 away from the highest insertion hole 402, then the plug plate 601 in the other idle switching mechanism is slid along the second fixed seat 6 so that the second elastic member 602 is stretched until the other end of the plug plate 601 is received into the inner cavity of the second fixed seat 6, a new set of filter plates 5 is inserted into the inside of the ventilation pipe 1 through the gap 102 and pushed to the blocking seat 401, until the blocking plate 501 is slid along the side wall of the second fixed seat 6 to abut against the bottom end of the ventilation pipe 1, at this time, the blocking seat 401 is pushed into the connecting box 101, and the insertion end of the plug rod 403 is inserted into the set of insertion holes 402 on the slide rod 4 at the low position, thereby limiting and fixing the slide rod 4 and the ventilation pipe 1, at this time, the plug plate 601 is loosened, and the other end of the plug plate 601 is slid along the second fixed seat 6 under the action of the elastic recovery of the second elastic member 602 until the plug plate 601 is in contact with the bottom end of the blocking plate 501 to support the filter plate 5, so that the filter plate 5 is prevented from being separated from the ventilation pipe 1, thereby completing the limiting and fixing of the filter plate 5 and the ventilation pipe 1, and finally the other switching mechanism is operated to disassemble the blocked filter plate 5, the ventilation work is continuously carried out during the replacement of the filter plate 5, and the ventilation efficiency is improved.

[0026] Embodiment two

[0027] As Figure 2 and Figure 3 shown, a civil air defense engineering ventilation device is provided, compared with embodiment one, the ventilation pipe 1 is internally provided with a mounting seat 104, and the mounting seat 104 is detachably provided with a protective fence 2 through bolts.

[0028] In this embodiment, the protective fence 2 is convenient for protecting the ventilation fan 3, avoiding that small animals or other interference objects affect the ventilation of the ventilation fan 3, and the protective fence 2 is detachably arranged, so that the protective fence 2 can be disassembled and the ventilation fan 3 can be disassembled and maintained.

[0029] The embodiments of the utility model are described in detail in combination with the drawings above, but the utility model is not limited to this, various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A ventilation device for a civil defense shelter, characterized in that, The utility model relates to a ventilation pipe and switching mechanism thereof The ventilation pipe (1) is internally detachably installed with a ventilation fan (3) through bolts; Switching mechanisms are provided in two groups, and the two groups of switching mechanisms are sequentially arranged at the air inlet end of the ventilation pipe (1), and the switching mechanism comprises A connecting box (101) is installed at the top end of the ventilation pipe (1); A let-in opening (102) is arranged at the bottom end of the ventilation pipe (1) and corresponds to the connecting box (101); A blocking seat (401) is arranged in the interior of the ventilation pipe (1) and is inserted with the let-in opening (102), the top end of the blocking seat (401) is provided with a sliding rod (4), the top end of the sliding rod (4) extends to the outside of the top end of the connecting box (101) and is slidably connected with the connecting box (101), and the cross section of the blocking seat (401) is T-shaped; A first limiting assembly is arranged at the top end of the connecting box (101), and the sliding rod (4) is limited with the ventilation pipe (1) through the first limiting assembly; A filter plate (5) is detachably installed between the ventilation pipe (1) and one of the groups of switching mechanisms.

2. The civil defense engineering ventilation device according to claim 1, characterized in that, The first limiting assembly is composed of a first fixed seat (404) installed on the connecting box (101), a plug rod (403) slidably inserted into the first fixed seat (404), and a first elastic member (405) installed between one end of the plug rod (403) and the first fixed seat (404).

3. The civil defense engineering ventilation device according to claim 2, characterized in that, Two groups of insertion holes (402) are arranged on the sliding rod (4), and the plug rod (403) is inserted into the insertion holes (402).

4. The civil defense engineering ventilation device according to claim 1, characterized in that, The filter plate (5) extends into the interior of the ventilation pipe (1) through the let-in opening (102), the top end of the filter plate (5) abuts against the bottom end of the blocking seat (401), and the bottom end of the filter plate (5) is installed with a blocking plate (501) abutting against the bottom end of the ventilation pipe (1); a second limiting assembly is arranged at the bottom end of the ventilation pipe (1), and the blocking plate (501) is limited with the ventilation pipe (1) through the second limiting assembly.

5. The civil defense engineering ventilation device according to claim 4, characterized in that, The second limiting assembly is composed of a second fixed seat (6) installed at the bottom end of the ventilation pipe (1), a plug plate (601) slidably inserted into the second fixed seat (6), and a second elastic member (602) installed between one end of the plug plate (601) and the second fixed seat (6), the second elastic member (602) is a spring, the second elastic member (602) is sleeved outside the plug plate (601), one side wall of the blocking plate (501) is slidably connected with the second fixed seat (6), and the plug plate (601) abuts against the bottom end of the blocking plate (501).

6. The air defense engineering ventilation device according to claim 1, characterized in that, An installation seat (104) is installed in the air outlet end of the ventilation pipe (1), and a protective fence (2) is detachably installed on the installation seat (104) through bolts.

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