Ventilation device applied to underground shelter and underground shelter

Abstract

The invention relates to the technical field of constructional engineering, and particularly discloses a ventilation device applied to an underground shelter and the underground shelter. Comprising a box body, an air outlet fan installed in the box body and used for discharging indoor turbid air, an air inlet fan installed in the box body and used for conveying outdoor air into a room, a filtering assembly arranged in the box body and used for being communicated with the air inlet fan, and a cleaning mechanism arranged in the box body and used for cleaning impurities on the filtering assembly. And a drive assembly. Compared with the prior art, the ventilation device can achieve indoor ventilation through one device, impurities on the filtering assembly are effectively removed, and the service life of the whole ventilation device is greatly prolonged; by means of the ventilation device, outside air can be fed into the refuge space through the fresh air inlet pipeline, turbid air in the refuge space is exhausted to the outside, and therefore it can be guaranteed that the air in the refuge space is fresh and high in oxygen content.

Description

Technical Field

[0001] The present invention relates to the technical field of building engineering, and more particularly to a ventilation device used in underground refuge places and an underground refuge. Background Art

[0002] In the current social context, with the acceleration of urbanization and the increase in densely populated areas, natural disasters, public emergencies and other emergencies are posing an increasingly serious threat to people's lives and property. Underground emergency shelters, as an important part of emergency protection, are widely used in earthquakes, floods, nuclear, biological and chemical disasters, etc., to provide people with temporary shelters. However, traditional underground emergency shelters have many deficiencies in terms of spatial layout, personnel flow, environmental control, etc., making it difficult to provide refugees with a good shelter experience and safety guarantees in emergency situations.

[0003] The ventilation devices used in shelters in the prior art cannot effectively filter all types of particles and pollutants. In particular, after long-term use, the filter components cannot be cleaned and will gradually fail, resulting in a decrease in air quality. At the same time, due to the humid underground environment, the ventilation devices in the prior art are relatively complex in structure and difficult to maintain and repair. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a ventilation device and an underground shelter for use in underground shelters;

[0005] The solution adopted by the present invention to solve the technical problem is:

[0006] A ventilation device used in an underground refuge, comprising a box, an air outlet fan installed in the box and used to discharge turbid air indoors, an air inlet fan installed in the box and used to transport outdoor air indoors, a filter assembly arranged in the box and used to communicate with the air inlet fan, a cleaning mechanism arranged in the box and used to clean impurities on the filter assembly, and a drive assembly respectively drivingly matched with the air outlet fan, the air inlet fan, and the cleaning mechanism;

[0007] The outdoor air enters the filter assembly after entering the air blower, and then enters the room. At the same time, the turbid gas is discharged through the air outlet fan.

[0008] In some possible implementations, the outlet fan has the same structure as the inlet fan and is a non-powered fan; it includes a housing arranged at the air inlet and the air outlet, a rotating shaft rotatably installed in the housing, and blades installed on the rotating shaft; the driving assembly is in transmission cooperation with the rotating shaft of the outlet fan and the rotating shaft of the inlet fan;

[0009] The air inlet of the air outlet fan is connected to the indoor room, and the air outlet of the air inlet fan is connected to the filter assembly; the air outlet of the air outlet fan and the air inlet of the air inlet fan are connected to the outdoor room respectively.

[0010] In some possible embodiments, the driving assembly includes a driving motor, two groups of bevel gears A that are arranged one-to-one with the rotating shafts and are respectively connected, a transmission shaft that is transmission-connected to the output shaft of the driving motor, and two groups of bevel gears B that are sleeved on the outside of the transmission shaft and arranged one-to-one with the two groups of bevel gears A; the bevel gears A and the bevel gears B are meshing.

[0011] In some possible implementations, a partition is provided in the box body to divide the interior of the box body into a filtering area and an installation area, and the filtering assembly is installed in the filtering area and is detachably connected to the box body;

[0012] The filter assembly includes a dust filter and a deodorizing assembly; outdoor air enters the filter area through the air inlet fan, and enters the room after being filtered by the dust filter and the deodorizing assembly.

[0013] In some possible embodiments, the cleaning mechanism is arranged on a side of the dust filter away from the deodorization component; the cleaning mechanism includes a cleaning component that cooperates with the driving component for transmission, and a collecting bin that cooperates with the cleaning component and is used to collect cleaned impurities; the collecting bin is located below the cleaning component; and the collecting bin is connected to the filtering area.

[0014] In some possible embodiments, the cleaning assembly includes a screw that is transmission-connected to the driving assembly and rotatably installed in the filtering area, a slide mounted on the outside of the screw, a brush arranged on the side of the slide close to the filtering assembly, and a guide rod arranged parallel to the screw, and the slide is mounted on the outside of the guide rod.

[0015] In some possible implementations, the slides are in two groups, and when the lead screw rotates around its axial direction, the two groups of slides move closer to or farther from each other along the axial direction of the lead screw; a material drop port connected to the collection bin is provided at the bottom of the filtration area, and a folding plate for opening and closing the material drop port is provided in the material drop port; the folding plate is connected to the slide;

[0016] When the two groups of slides approach each other, the drop opening opens, and the impurities cleaned by the brushes fall into the collection bin.

[0017] In some possible implementations, the drive assembly further includes a first transmission assembly drivingly connected to the drive motor and the transmission shaft, and a second transmission assembly drivingly connected to the first transmission assembly and the lead screw.

[0018] In some possible implementations, the first transmission assembly includes a main pulley connected to the output shaft of the driving motor, a first shaft connected to the transmission shaft, a first pulley sleeved on the outside of the first shaft, a first synchronous belt respectively driving with the main pulley and the first pulley, and a first ratchet mechanism arranged between the first shaft and the transmission shaft;

[0019] The second transmission assembly includes a second pulley sleeved on the outside of the first shaft, a second shaft connected to the lead screw, a slave pulley sleeved on the outside of the second shaft, a second synchronous belt respectively engaged with the second pulley and the slave pulley, and a second ratchet mechanism arranged between the second shaft and the lead screw, wherein the lead screw is a reciprocating lead screw; when the transmission shaft rotates around its axis under the drive of the driving assembly, the reciprocating lead screw does not rotate around its axis.

[0020] An underground refuge comprises a functional area formed by a combination of detachable enclosures and the ventilation device as described above.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Compared with the prior art, the ventilation device of the present invention can realize indoor ventilation with one set of devices, and effectively realize the cleaning of impurities on the filter assembly, thereby greatly improving the service life of the entire ventilation device; the structure is simple and practical; the ventilation device can send the outside air into the refuge space through the fresh air inlet pipe, and exhaust the turbid gas in the refuge space to the outside, thus ensuring that the air in the refuge space is fresh and has a high oxygen content;

[0023] The ventilation device in the present invention, through the ratchet structure design, avoids the cleaning component from continuously running while the driving component drives the unpowered air inlet fan and the air outlet fan to work, thereby reducing the energy consumption and wear of the equipment operation and optimizing the overall operating efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 A structural schematic diagram of one perspective of the present invention;

[0026] Figure 3 A structural schematic diagram of another perspective of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the box body, the air inlet fan, the air outlet fan, the cleaning mechanism, the filter assembly, and the drive assembly in the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the air inlet fan, the air outlet fan, the cleaning mechanism, the filter assembly, and the drive assembly in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the air inlet fan, the air outlet fan, the cleaning mechanism, the dust filter, and the deodorizing component in the present invention;

[0030] Figure 7 It is a schematic diagram of the structural layout of the underground refuge in the present invention;

[0031] Among them: 1-box, 11-partition, 12-air outlet cavity, 13-air inlet cavity, 14-filter area, 141-feeding port, 2-air outlet fan, 21-air outlet duct A, 22-air outlet duct, 3-air inlet fan, 31-air inlet duct A, 32-air inlet duct B, 33-air inlet duct C, 4-cleaning mechanism, 41-screw, 42-slide, 43-guide rod, 44-folding plate, 45-collection bin, 5-filter assembly , 51-dust filter, 52-deodorization assembly, 6-drive assembly, 61-drive motor, 62-bevel gear A, 63-drive shaft, 64-bevel gear B, 65-first transmission assembly, 66-second transmission assembly, 67-first ratchet mechanism, 68-second ratchet mechanism, 10-physical examination and disinfection area, 20-isolation area, 30-medical area, 40-electrical area, 50-material area, 60-toilet, 70-living area. DETAILED DESCRIPTION

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity restriction, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The present invention is described in detail below.

[0034] like Figure 1-Figure 6 As shown:

[0035] A ventilation device for underground refuge places, comprising a box body 1, an air outlet fan 2 installed in the box body 1 and used to discharge turbid air indoors, an air inlet fan 3 installed in the box body 1 and transporting outdoor air indoors, a filter assembly 5 arranged in the box body 1 and used to communicate with the air inlet fan 3, a cleaning mechanism 4 arranged in the box body 1 and used to clean impurities on the filter assembly 5, and a driving assembly 6 respectively drivingly matched with the air outlet fan 2, the air inlet fan 3, and the cleaning mechanism 4;

[0036] The outdoor air enters the air blower 3 and enters the filter assembly 5 for filtration, and then enters the room. At the same time, the turbid gas is discharged through the air outlet fan 2.

[0037] Driven by the driving component 6, the outdoor fresh air enters the air inlet fan 3, and then enters the filter component 5. After the filter component 5 filters and removes impurities, the fresh air is delivered to the room. At the same time, the air outlet fan 2 under the driving component 6 sucks the turbid air in the room and discharges it to the outside, so as to realize indoor ventilation. The cleaning mechanism 4 cleans the impurities on the filter component 5 after the filter component 5 has been used for a period of time.

[0038] Compared with the prior art, the present invention can realize indoor ventilation with one set of devices, and effectively clean the impurities on the filter assembly 5, greatly improving the service life of the entire ventilation device; the structure is simple and the practicability is strong;

[0039] The setting of the filter component 5 can prevent a large amount of dust carried by outdoor air from entering the indoor space, causing poor air quality and affecting people's health. In addition, in order to reduce the cleaning of the dust filter 51; the setting of the drive component 6 provides power for the air inlet fan 3 and the air outlet fan 2, so that the air inlet fan 3 and the air outlet fan 2 can generate negative pressure to achieve indoor air flow, and the drive component 6 provides power for the self-cleaning mechanism 4, so that the cleaning mechanism 4 can automatically clean the filter component 5.

[0040] In some possible implementations, the outlet fan 2 has the same structure as the inlet fan 3 and is a non-powered fan; it includes a housing arranged at the air inlet and the air outlet, a rotating shaft rotatably installed in the housing, and blades installed on the rotating shaft; the driving assembly 6 is in transmission cooperation with the rotating shaft of the outlet fan 2 and the rotating shaft of the inlet fan 3;

[0041] The air inlet of the air outlet fan 2 is connected to the indoor room, and the air outlet of the air inlet fan 3 is connected to the filter assembly 5; the air outlet of the air outlet fan 2 and the air inlet of the air inlet fan 3 are connected to the outdoor room respectively;

[0042] The air inlet of the outlet fan 2 is connected to the indoor through the air outlet duct 22A21, and the air outlet of the air inlet fan 3 is connected to the filter assembly 5 through the air inlet duct B32; the air outlet of the outlet fan 2 is connected to the outdoor through the air outlet duct B22, the air inlet of the air inlet fan is connected to the outdoor through the air inlet duct A, and the filter assembly 5 is connected to the indoor fresh air duct through the air inlet duct C33;

[0043] The turbid air in the room enters the air outlet fan 2 through the air outlet duct 22A21, and then is discharged to the outside through the air outlet duct B22;

[0044] Outdoor fresh air enters the air inlet fan 3 through the air inlet duct A31, and then enters the filter assembly 5 through the air inlet duct B32 for filtration. The filtered fresh air is transported to the room through the air inlet duct C33, thereby effectively achieving indoor ventilation.

[0045] In some possible implementations, in order to effectively realize that when fresh air from the outdoors enters the room, the turbid air in the room can be discharged to the outdoors at the same time, thereby effectively realizing ventilation;

[0046] The driving assembly 6 includes a driving motor 61, two sets of bevel gears A62 which are arranged one-to-one with the rotating shafts and are respectively connected, a transmission shaft 63 which is transmission-connected to the output shaft of the driving motor 61, and two sets of bevel gears B64 which are sleeved on the outside of the transmission shaft 63 and arranged one-to-one with the two sets of bevel gears A62; the bevel gears A62 are meshed with the bevel gears B.

[0047] Bevel gears A62 are respectively installed on the rotating shafts of the air inlet fan 3 and the air outlet fan 2, and the transmission shaft 63 is rotatably installed in the installation cavity. Two sets of bevel gears B64 are arranged in a one-to-one correspondence with the two sets of bevel gears A62 and mesh with each other; the driving motor 61 drives the transmission shaft 63 to rotate, thereby rotating the bevel gear B64, and then driving the two sets of bevel gears A62 to rotate, so that the rotating shaft drives the blades to rotate, thereby realizing ventilation.

[0048] In some possible implementations, a partition 11 is provided in the box body 1 to divide the interior of the box body 1 into a filtering area 14 and an installation area, and the filter assembly 5 is installed in the filtering area 14 and is detachably connected to the box body 1;

[0049] The installation area is divided into an air inlet chamber 13 and an air outlet chamber 12 by a baffle plate; the air inlet fan 3 is located in the air inlet chamber 13, and the air outlet fan 2 is located in the air outlet chamber 12;

[0050] The filter assembly 5 includes a dust filter 51 and a deodorizing assembly 52; outdoor air enters the filter area 14 through the air inlet fan 3, and enters the room after being filtered by the dust filter 51 and the deodorizing assembly 52;

[0051] Furthermore, the dust filter 51 and the deodorizing component 52 are installed in the filter area 14 by plug-in, and a slot for connecting the filters is provided on the housing 1; such a setting will realize the detachable installation of the dust filter 51 and the deodorizing component 52 from the housing 1, and facilitate the replacement of the dust filter 51 and the deodorizing component 52;

[0052] Further, the deodorizing component 52 is a plate-shaped component made of activated carbon;

[0053] Fresh air from the outside enters the air inlet fan 3 through the air inlet duct A; then enters the filter area 14, where it is filtered by the dust filter 51 to remove dust and other impurities, and then passes through the deodorizing component 52 for deodorizing treatment before entering the room; after long-term use, a large amount of impurities will accumulate on the dust filter 51, which will be cleaned by the cleaning mechanism 4;

[0054] In some possible embodiments, the cleaning mechanism 4 is arranged on a side of the dust filter 51 away from the deodorization component 52; the cleaning mechanism 4 includes a cleaning component that cooperates with the driving component 6 for transmission, and a collecting bin 45 that cooperates with the cleaning component and is used to collect cleaned impurities; the collecting bin 45 is located below the cleaning component; the collecting bin 45 is connected to the filtering area 14.

[0055] The collecting bin 45 is arranged at the bottom of the filtering area 14 and is in communication with the filtering area 14, so as to collect the cleaned dust and prevent the dust from adhering again;

[0056] After the filter component 5 has been used for a period of time, a large amount of impurities will accumulate on the dust filter 51. At this time, the driving component 6 controls the operation of the cleaning component to clean the impurities on the dust filter 51 to avoid clogging of the dust filter 51 or the inability to filter. The cleaned impurities fall into the collection bin 45 and are then centrally cleaned through the collection bin 45.

[0057] In some possible implementations, in order to effectively clean the impurities on the dust filter 51 through the cleaning component;

[0058] The cleaning assembly includes a screw 41 which is transmission-connected to the driving assembly 6 and rotatably mounted in the filtering area 14, a slide 42 which is sleeved on the outside of the screw 41, a brush arranged on the side of the slide 42 close to the filtering assembly 5, and a guide rod 43 which is arranged parallel to the screw 41, and the slide 42 is sleeved on the outside of the guide rod 43.

[0059] Furthermore, the lead screw 41 is arranged in parallel with the transmission shaft 63 .

[0060] The driving motor 61 drives the lead screw 41 to rotate around its axis in the box body 1, so that the slide 42 moves along the axial direction of the lead screw 41; the brush will move relative to the dust filter 51 driven by the slide 42, and act on the dust filter 51 to clean the dust, so that the dust filter 51 is cleaned; the slide 42 is mounted on the outside of the guide rod 43, so that the slide 42 can only move along the axis of the lead screw 41 but cannot rotate; the driving assembly 6 described here is another set of driving motors 61 that are transmission-connected to the lead screw 41, so as to realize the independent control of the forward and reverse rotation of the lead screw 41.

[0061] In some possible implementations, in order to effectively clean the entire dust filter 51 and speed up the cleaning efficiency, the slides 42 are divided into two groups, and when the lead screw 41 rotates around its axial direction, the two groups of slides 42 move closer to or farther from each other along the axial direction of the lead screw 41;

[0062] A material drop opening 141 communicating with the collection bin 45 is provided at the bottom of the filtering area 14, and a folding plate 44 for opening and closing the material drop opening 141 is provided in the material drop opening 141; the folding plate 44 is connected to the slide 42;

[0063] When the two sets of slides 42 approach each other, the drop opening 141 opens, and the impurities cleaned by the brushes fall into the collection bin 45;

[0064] The folding plate 44 is connected to the bottom of the slide 42. When the two sets of slides 42 are close to each other, the blanking port 141 is opened, and the cleaned products will fall into the collection bin 45 from the opened blanking port 141. When the two sets of slides 42 move away from each other, the two sets of folding plates 44 will close the blanking port 141 as the slides 42 move. When the distance between the two sets of slides 42 is the largest, the folding plate 44 will completely close the blanking port 141. In this state, ventilation operation can be performed. Specifically, when the two sets of slides 42 are close to each other, When the two sets of slides 42 move away from each other, the slides 42 drive the folding plates 44 to fold, and the blanking port 141 is opened. When the two sets of slides 42 move away from each other, the slides 42 drive the folding plates 44 to unfold, and the blanking port 141 is closed. When the blanking port 141 is opened, the dust cleaned by the brush can enter the collection bin 45 due to gravity to complete the dust collection. When the blanking port 141 is closed, the collected dust cannot adhere to the dust filter 51 again. Of course, a cleaning port is also provided on the box body 1 and communicated with the filter area 14, and a closing cover is embedded in the cleaning port.

[0065] In some possible embodiments, in order to effectively drive the transmission shaft 63 and the lead screw 41 through the drive motor 61, the drive assembly 6 also includes a first transmission assembly 65 that is transmission-connected to the drive motor 61 and the transmission shaft 63, and a second transmission assembly 66 that is transmission-connected to the first transmission assembly 65 and the lead screw 41.

[0066] In some possible implementations, the first transmission assembly 65 includes a main pulley connected to the output shaft of the driving motor 61, a first shaft connected to the transmission shaft 63, a first pulley sleeved on the outside of the first shaft, a first synchronous belt respectively driving with the main pulley and the first pulley, and a first ratchet mechanism 67 disposed between the first shaft and the transmission shaft 63;

[0067] The second transmission assembly 66 includes a second pulley mounted on the outside of the first shaft, a second shaft connected to the screw 41, a slave pulley mounted on the outside of the second shaft, a second synchronous belt respectively engaged with the second pulley and the slave pulley, and a second ratchet mechanism 68 arranged between the second shaft and the screw 41. The screw 41 is a reciprocating screw 41. When the drive assembly 6 drives the lower transmission shaft 63 to rotate around its axis, the reciprocating screw 41 does not rotate around its axis.

[0068] When the driving motor 61 drives the first shaft to rotate in the forward direction, under the action of the first ratchet mechanism 67, the first shaft drives the transmission shaft 63 to rotate in the forward direction, so that the bevel gear B drives the bevel gear A to rotate, and the air inlet fan 3 and the air outlet fan 2 work. At this time, under the action of the second ratchet mechanism 68, the second shaft cannot transmit power to the lead screw 41, so that the self-cleaning mechanism 4 does not work;

[0069] When the driving motor 61 drives the reverse rotation, under the action of the first ratchet mechanism 67, the transmission shaft 63 does not rotate in the reverse direction, so that the power cannot be transmitted to the bevel gear B, and the bevel gear B cannot drive the bevel gear A to rotate, which makes the air inlet fan 3 and the air outlet fan 2 stop working. At this time, under the action of the second ratchet mechanism 68, the second shaft transmits the power to the screw 41. At this time, the slide 42 moves to clean the dust filter 51. Since the screw 41 is a reciprocating screw 41, the slide 42 makes a reciprocating motion on the reciprocating screw 41 to clean the impurities.

[0070] like Figure 7 As shown, an underground shelter includes a functional area formed by a combination of detachable enclosures and having a U-shaped structure, a living area 70 located in the U-shaped structure, and the ventilation device as described above.

[0071] The functional area includes a physical examination and disinfection area 10 set at the entrance passage of the underground space, an isolation area 20 and a medical area 30 adjacent to the physical examination and disinfection area 10, an electrical area 40 for placing ventilation devices and located on the side of the medical area 30 away from the physical examination and disinfection area 10, a material area 50 set on the side of the electrical area 40 away from the medical area 30, and two toilets 60 adjacent to the isolation area 20 and the material area 50; all of the above areas form a U-shaped structure; the living area 70 will be located in the U-shaped structure; the living area 70 includes multiple living areas;

[0072] The above arrangement allows the personnel who enter the refuge space through the entrance passage to first enter the physical examination and disinfection area 10 for physical examination and disinfection, so as to avoid the spread of epidemic diseases in a limited space; a medical area 30 is arranged on one side of the physical examination and disinfection area 10, and the medical area 30 is used for medical assistance, and is close to the physical examination and disinfection area 10, so that medical arrangements can be made nearby; a living area 70 is also arranged inside the refuge space, and the living area 70 is not separated by enclosure to ensure the rapid flow of personnel;

[0073] One side of a group of toilets 60 is arranged near the material area 50, which is used to store and distribute living materials to the refugees. The material area 50 includes a material distribution area and a material storage area, and an isolation door is provided between the two areas.

[0074] Another set of toilets 60 is arranged on one side near the isolation area 20, which is used to isolate and treat people with infectious diseases and can also be used as an emergency area;

[0075] An electrical area 40 is also provided between the medical area 30 and the material area 50. The electrical area 40 is used to install electrical equipment. The electrical area 40 is far away from the living area 70 to avoid noise pollution, and is close to the medical area 30 and the material area 50. In case of electrical failure, electrical control can be performed in time to ensure the use of medical equipment and the use of equipment in the material area 50.

[0076] To ensure rapid evacuation of personnel, two groups of exit passages are set up in the refuge space, and the two groups of exit passages are close to the two sides of the refuge space respectively; in the living area 70, multiple groups of residential areas are arranged in an array, and one side of each row of residential areas is an emergency escape passage, and the emergency escape directions of the emergency escape passages in two adjacent rows are opposite, so that when emergency evacuation of personnel occurs, crowding can be avoided and rapid evacuation can be ensured.

[0077] In the underground emergency shelter of the present invention, each area has a close relationship with each other. For example, the medical area is adjacent to the physical examination and disinfection area, which is convenient for quick medical arrangements; the quick-install enclosure structure in the living area not only ensures privacy, but also facilitates quick installation and disassembly, which meets the flexible needs in emergency situations.

[0078] The underground emergency shelter of the present invention sets up a physical examination and disinfection area 10 at the entrance to ensure that people entering the shelter space undergo physical examination and disinfection before entering, effectively preventing the spread of epidemic diseases that may occur in the confined space and protecting the health of the shelterers.

[0079] The living area and medical area in the underground emergency shelter of the present invention are fully equipped with necessary living material area 50 and isolation area 20; an isolation door is provided between the material storage area and the material distribution area, which ensures the safe storage of materials and the orderly distribution;

[0080] The setting of the isolation area 20 provides a separate treatment space for people who may suffer from infectious diseases, and can be used as an emergency area to ensure that people in the refuge space receive timely assistance.

[0081] The underground stress shelter of the present invention can effectively ensure the circulation of internal air by setting a ventilation system design in the refuge space of a ventilation device, and the turbid gas exhaust pipe is connected to the outlet pipe B22, and the fresh air inlet pipe is connected to the inlet pipe C33 to discharge the turbid gas and introduce fresh air. The inlet fan 3 and the outlet fan 2 cooperate with the use of the filter assembly 5 to ensure that the air entering the refuge space is filtered, avoid the entry of external dust and pollutants, and ensure the air quality and oxygen content in the refuge space.

[0082] The design of the underground stress shelter's main electrical area away from the living area effectively reduces the noise pollution that may be generated when the electrical equipment is running, ensuring the rest quality of the refugees. At the same time, the electrical area 40 is close to the medical area 30 and the material area 50, which is convenient for timely maintenance and repair when an electrical fault occurs, ensuring the safe use of medical equipment and important materials.

[0083] The filter assembly 5 in the ventilation device of the present invention is equipped with a cleaning mechanism 4, which can automatically clean the dust accumulated on the dust filter 51, reducing the frequency and difficulty of manual cleaning, extending the service life of the filter, and reducing the equipment maintenance cost.

[0084] The ratchet mechanism design avoids the cleaning mechanism 4 from continuously running while the driving component 6 drives the air inlet fan 3 and the air outlet fan 2 to work, thereby reducing the energy consumption and wear of the equipment and optimizing the overall operating efficiency of the system.

[0085] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A ventilation device used in an underground shelter, characterized in that: It includes a box body, an air outlet fan installed in the box body and used to discharge turbid air in the room, an air inlet fan installed in the box body and used to transport outdoor air to the room, a filter assembly arranged in the box body and used to communicate with the air inlet fan, a cleaning mechanism arranged in the box body and used to clean impurities on the filter assembly, and a driving assembly respectively driving and cooperating with the air outlet fan, the air inlet fan and the cleaning mechanism; The outdoor air enters the filter assembly after entering the air blower, and then enters the room. At the same time, the turbid gas is discharged through the air outlet fan.

2. A ventilation device for underground shelters according to claim 1, characterized in that: The outlet fan has the same structure as the inlet fan and is a non-powered fan; it includes a housing arranged at the air inlet and the air outlet, a rotating shaft rotatably installed in the housing, and blades installed on the rotating shaft; the driving assembly is in transmission cooperation with the rotating shaft of the outlet fan and the rotating shaft of the inlet fan; The air inlet of the air outlet fan is connected to the indoor room, and the air outlet of the air inlet fan is connected to the filter assembly; the air outlet of the air outlet fan and the air inlet of the air inlet fan are connected to the outdoor room respectively.

3. A ventilation device for underground shelters according to claim 2, characterized in that: The driving assembly includes a driving motor, two sets of bevel gears A which are arranged one-to-one with the rotating shafts and are respectively connected, a transmission shaft which is transmission-connected to the output shaft of the driving motor, and two sets of bevel gears B which are sleeved on the outside of the transmission shaft and arranged one-to-one with the two sets of bevel gears A; the bevel gears A and the bevel gears B are meshing.

4. A ventilation device for underground shelters according to claim 1, characterized in that: The box body is provided with a partition plate which divides the inside of the box body into a filtering area and an installation area, and the filtering assembly is installed in the filtering area and is detachably connected to the box body; The filter assembly includes a dust filter and a deodorizing assembly; outdoor air enters the filter area through the air inlet fan, and enters the room after being filtered by the dust filter and the deodorizing assembly.

5. A ventilation device for underground shelters according to claim 3, characterized in that: The cleaning mechanism is arranged on a side of the dust filter away from the deodorizing component; the cleaning mechanism includes a cleaning component that cooperates with the driving component for transmission, and a collecting bin that cooperates with the cleaning component and is used to collect cleaned impurities; the collecting bin is located below the cleaning component; and the collecting bin is connected to the filtering area.

6. A ventilation device for underground shelters according to claim 5, characterized in that: The cleaning assembly includes a lead screw which is transmission-connected to the driving assembly and rotatably installed in the filtering area, a slide sleeved on the outside of the lead screw, a brush arranged on the side of the slide close to the filtering assembly, and a guide rod arranged parallel to the lead screw, and the slide sleeved on the outside of the guide rod.

7. A ventilation device for underground shelters according to claim 6, characterized in that: The slides are in two groups. When the lead screw rotates around its axial direction, the two groups of slides move closer to or farther from each other along the axial direction of the lead screw. A material drop opening connected to the collection bin is provided at the bottom of the filtration area. A folding plate for opening and closing the material drop opening is provided in the material drop opening. The folding plate is connected to the slides. When the two groups of slides are close to each other, the drop opening is opened, and the impurities cleaned by the brushes will fall into the collection bin.

8. A ventilation device for underground shelters according to claim 4, characterized in that: The driving assembly also includes a first transmission assembly drivingly connected to the driving motor and the transmission shaft, and a second transmission assembly drivingly connected to the first transmission assembly and the lead screw.

9. A ventilation device for underground shelters according to claim 8, characterized in that: The first transmission assembly includes a main pulley connected to the output shaft of the driving motor, a first shaft connected to the transmission shaft, a first pulley sleeved on the outside of the first shaft, a first synchronous belt respectively matched with the main pulley and the first pulley, and a first ratchet mechanism arranged between the first shaft and the transmission shaft; The second transmission assembly includes a second pulley sleeved on the outside of the first shaft, a second shaft connected to the lead screw, a slave pulley sleeved on the outside of the second shaft, a second synchronous belt respectively engaged with the second pulley and the slave pulley, and a second ratchet mechanism arranged between the second shaft and the lead screw, wherein the lead screw is a reciprocating lead screw; when the transmission shaft rotates around its axis under the drive of the driving assembly, the reciprocating lead screw does not rotate around its axis.

10. An underground refuge, characterized in that: It comprises a functional area formed by a combination of detachable enclosures, and a ventilation device as described in any one of claims 1 to 9.

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