CN112246042B - Ventilation filtering device for civil air defense engineering - Google Patents
Ventilation filtering device for civil air defense engineering Download PDFInfo
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- CN112246042B CN112246042B CN202011165990.6A CN202011165990A CN112246042B CN 112246042 B CN112246042 B CN 112246042B CN 202011165990 A CN202011165990 A CN 202011165990A CN 112246042 B CN112246042 B CN 112246042B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
- B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
- B01D46/0054—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with translational movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4236—Reducing noise or vibration emissions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
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Abstract
The invention discloses a ventilation filtering device for civil air defense engineering, belongs to the technical field of civil air defense engineering, and solves the problem that the air intake quantity is not adjustable due to the inconvenience in adjusting the air intake angle at the vent of the conventional device; the technical characteristics are as follows: the air guide assembly is connected with the angle adjusting assemblies, the angle adjusting assemblies are arranged in two groups, and the angle adjusting assemblies are symmetrically arranged about a horizontal central axis of the shell; according to the embodiment of the invention, the filtering component is arranged, so that the air is filtered, the cleanness of the air is ensured, the outdoor air is prevented from polluting the indoor air, and the cleanliness of the indoor air is ensured.
Description
Technical Field
The invention relates to the technical field of civil air defense engineering, in particular to a ventilation filtering device for civil air defense engineering.
Background
Civil air defense engineering also calls civil air defense work, and refers to an underground protection building which is independently built for guaranteeing the shelter of war personnel and materials, the command of civil air defense and medical aid, air exchange equipment is often needed in the civil air defense facility, the existing air exchange can only be carried out, the air entering the engineering can not be filtered, and the long-term incoming polluted air can cause harm to human bodies.
Chinese patent CN210569126U discloses a ventilation filter equipment for civil air defense engineering, including the rose box, suction fan, filter screen and active carbon net have been placed respectively to the inside of rose box, the upper surface of suction fan and the upper surface of active carbon net all with the interior roof fixed connection of rose box, the bottom surface of suction fan and the bottom surface of active carbon net all with the interior bottom wall fixed connection of rose box, the draw-in groove has been seted up to the interior roof of rose box, the bottom surface of rose box is fixedly connected with fixed plate and connecting plate respectively, the spout has been seted up to the right flank of connecting plate, but the device vent department air inlet angle regulation is inconvenient, leads to the air input can not be adjusted, therefore, we provide a filter equipment that takes a breath for civil air defense engineering.
Disclosure of Invention
The invention aims to provide a ventilation filtering device for civil air defense engineering, which comprises a shell and a filtering cavity, wherein the filtering cavity is arranged in the shell, the filtering cavity is connected with the side wall of the shell in a sliding manner, a filtering component for filtering air is arranged in the filtering cavity, air guide components for guiding air are symmetrically arranged in the shell, the air guide components are connected with angle adjusting components, the angle adjusting components are arranged in two groups, and the angle adjusting components are symmetrically arranged relative to the horizontal central axis of the shell, so that the problem that the air inlet angle at the air vent of the traditional device is inconvenient to adjust, and the air inlet amount is not adjustable is solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a filter equipment takes a breath for civil air defense engineering, includes casing and filter chamber, is provided with the filter chamber in the casing, the lateral wall sliding connection of filter chamber and casing, and be provided with in the filter chamber and be used for the filtering component to air filtration, the while internal symmetry of casing is provided with and is used for the air guide component to the air water conservancy diversion, and air guide component is connected with angle adjusting component, and angle adjusting component is provided with two sets ofly, and angle adjusting component sets up about the horizontal axis symmetry of casing.
As a further scheme of the invention: the angle adjusting assembly comprises a servo motor, a driving gear and an internal thread sleeve, the servo motor is fixedly installed on the side wall of the shell, the driving gear is fixedly connected with the output end of the servo motor, the internal thread sleeve is fixedly installed on the driving gear, the internal thread sleeve is sleeved outside the first screw rod, the internal thread sleeve is connected with the first screw rod through threads, and the first screw rod is connected with the side wall of the shell in a sliding mode.
As a still further scheme of the invention: the end fixed mounting of first screw rod has the connecting block, and the front side of connecting block articulates there is articulated piece, and articulated piece movable mounting is at the articulated inslot, and the articulated inslot still fixed mounting have a buffer spring who is used for protecting articulated piece, buffer spring's one end and articulated piece fixed connection, articulated groove fixedly connected with wind guide assembly.
As a still further scheme of the invention: the air guide assembly comprises an air guide plate, a hinged seat and a supporting plate, the air guide plate is obliquely arranged, the bottom of the air guide plate is fixed on the supporting plate, the supporting plate is fixedly arranged on the hinged seat, and the hinged seat is rotatably connected with the side wall of the shell.
As a still further scheme of the invention: the equipartition has a plurality of grooves of making an uproar of falling that are used for the amortization on the aviation baffle, and the inslot of making an uproar falls is provided with the amortization subassembly, and the amortization subassembly falls excellent equipartition of making an uproar at the top of the groove of making an uproar including falling stick, buffer rod and link, and fall excellent equipartition of making an uproar and fall excellent fixed mounting on the link, and the link passes through the buckle and is connected with the lateral wall of the groove of making an uproar, and the buffer rod is installed to the bottom of the groove of making an uproar, and the buffer rod adopts the elastomer material to make.
As a still further scheme of the invention: top one side of angle adjusting part be provided with the second screw rod, the upper and lower both ends of second screw rod are rotated through bearing and casing respectively and are connected, the top fixed mounting of second screw rod has driven gear, driven gear and top driving gear meshing transmission, the outside cover of second screw rod is equipped with the screw thread piece, passes through threaded connection between second screw rod and the screw thread piece, the lateral wall fixed connection of screw thread piece and filter chamber.
As a still further scheme of the invention: the filter component comprises a partition board and a filter screen, the partition board is fixedly installed at the middle part of the filter cavity, a plurality of filter screens are symmetrically arranged on the upper side and the lower side of the partition board, the filter screen is obliquely arranged, one side, close to the partition board, of the filter screen is rotatably connected with the partition board, one end, far away from the filter screen, of the partition board is hinged to an articulated frame, and the articulated frame is fixedly installed on the side wall of the filter cavity.
In conclusion, the beneficial effects of the invention are as follows: according to the embodiment of the invention, the filtering component is arranged, the filtering of air is realized by the arrangement of the filtering component, the cleanness of the air is ensured, the outdoor air is prevented from polluting the indoor air, the cleanliness of the indoor air is ensured, the arrangement of the silencing component plays a role in silencing and reducing noise, and the arrangement of the buffer rod can play a role in slowing down the impact of the air on the air deflector, so that the air deflector is protected.
Drawings
Fig. 1 is a schematic structural diagram of the invention.
Fig. 2 is a schematic structural diagram of the connecting block in the invention.
Fig. 3 is a schematic structural diagram of an air guide assembly in the present invention.
Fig. 4 is a partially enlarged schematic view of a in fig. 1.
Fig. 5 is a schematic structural diagram of a silencer assembly according to the present invention.
Fig. 6 is a schematic structural diagram of a noise reduction groove in the invention.
Fig. 7 is a schematic structural view of a filter chamber in the invention.
Fig. 8 is a schematic structural view of a filter assembly according to the present invention.
In the figure: the noise reduction device comprises a shell 1, a filter cavity 2, a servo motor 3, a driving gear 4, an internal thread sleeve 5, a first screw rod 6, an air guide assembly 7, an air guide plate 8, a hinge seat 9, a hinge block 10, a buffer spring 11, a noise reduction groove 12, a noise reduction rod 13, a buffer rod 14, a connecting frame 15, a connecting block 16, a partition plate 17, a hinge frame 18, a filter screen 19, a supporting plate 20, a driven gear 21, a second screw rod 22, a thread block 23 and a hinge groove 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, in the embodiment of the present invention, a ventilation filtering device for civil air defense engineering includes a housing 1 and a filter cavity 2, the filter cavity 2 is disposed in the housing 1, the filter cavity 2 is slidably connected to a side wall of the housing 1, a filter assembly for filtering air is disposed in the filter cavity 2, an air guide assembly 7 for guiding air is symmetrically disposed in the housing 1, and the air guide assembly 7 is connected to an angle adjusting assembly;
the angle adjusting assemblies are arranged in two groups and are symmetrically arranged about a horizontal central axis of the shell 1, each angle adjusting assembly comprises a servo motor 3, a driving gear 4 and an internal thread sleeve 5, the servo motors 3 are fixedly arranged on the side wall of the shell 1, the output ends of the servo motors 3 are fixedly connected with the driving gears 4, the internal thread sleeves 5 are fixedly arranged on the driving gears 4, the internal thread sleeves 5 are sleeved outside the first screw rods 6, and the internal thread sleeves 5 are connected with the first screw rods 6 through threads;
as shown in fig. 2-4, the first screw 6 is slidably connected to the side wall of the housing 1, and the side wall of the housing 1 has a limiting and guiding function on the first screw 6, so that the air guide assembly 7 is prevented from falling off, the normal operation of the air guide assembly 7 is ensured, and ventilation and filtration are facilitated;
the end part of the first screw rod 6 is fixedly provided with a connecting block 16, the front side of the connecting block 16 is hinged with a hinged block 10, the hinged block 10 is movably arranged in a hinged groove 24, a buffer spring 11 for protecting the hinged block 10 is also fixedly arranged in the hinged groove 24, one end of the buffer spring 11 is fixedly connected with the hinged block 10, and the hinged groove 24 is fixedly connected with an air guide assembly 7;
the air guide assembly 7 comprises an air guide plate 8, a hinged seat 9 and a supporting plate 20, the air guide plate 8 is obliquely arranged, the bottom of the air guide plate 8 is fixed on the supporting plate 20, the supporting plate 20 is fixedly arranged on the hinged seat 9, and the hinged seat 9 is rotatably connected with the side wall of the shell 1;
when the air guide plate is used, the servo motor 3 is started, the servo motor 3 drives the driving gear 4 to rotate, the driving gear 4 drives the internal thread sleeve 5 to rotate, and the internal thread sleeve 5 drives the first screw rod 6 to move up and down, so that the first screw rod 6 drives the connecting block 16 and the air guide plate 8 to swing, and the ventilation quantity is adjusted;
as shown in fig. 5-6, a plurality of noise reduction grooves 12 for noise reduction are uniformly distributed on the air deflector 8, noise reduction components are arranged in the noise reduction grooves 12, each noise reduction component comprises a noise reduction rod 13, a buffer rod 14 and a connecting frame 15, the noise reduction rods 13 are uniformly distributed at the tops of the noise reduction grooves 12, the noise reduction rods 13 are fixedly mounted on the connecting frames 15, the connecting frames 15 are connected with the side walls of the noise reduction grooves 12 through buckles, the buffer rods 14 are mounted at the bottoms of the noise reduction grooves 12, and the buffer rods 14 are made of elastomer materials;
the arrangement of the silencing component plays a role in silencing and reducing noise, and the arrangement of the buffer rod 14 can play a role in slowing down the impact of air on the air deflector 8, so that the air deflector 8 is protected;
a second screw 22 is arranged on one side of the upper angle adjusting assembly, the upper end and the lower end of the second screw 22 are respectively rotatably connected with the shell 1 through bearings, a driven gear 21 is fixedly mounted at the top of the second screw 22, the driven gear 21 is in meshing transmission with the driving gear 4 above, a thread block 23 is sleeved outside the second screw 22, the second screw 22 is in threaded connection with the thread block 23, and the thread block 23 is fixedly connected with the side wall of the filter cavity 2;
the driving gear 4 rotates and can drive the driven gear 21 to rotate, the driven gear 21 drives the second screw rod 22 to rotate, the second screw rod 22 drives the thread block 23 and the filter cavity 2 to move up and down, the contact area between the filter assembly and the air is increased, and the filter efficiency is improved.
As shown in fig. 7-8, the filter assembly includes a partition 17 and filter screens 19, the partition 17 is fixedly installed in the middle of the filter chamber 2, a plurality of filter screens 19 are symmetrically disposed on the upper and lower sides of the partition 17, the filter screens 19 are obliquely disposed, one side of each filter screen 19 close to the partition 17 is rotatably connected with the partition 17, one end of each partition 17 far from the corresponding filter screen 19 is hinged to a hinge frame 18, and the hinge frames 18 are fixedly installed on the side walls of the filter chamber 2;
the filtering component is arranged to filter air, so that the air is clean, the outside air is prevented from polluting the indoor air, and the cleanliness of the indoor air is guaranteed.
Example 2
As shown in fig. 1, in the embodiment of the present invention, a ventilation filtering device for civil air defense engineering includes a housing 1 and a filter cavity 2, the filter cavity 2 is disposed in the housing 1, the filter cavity 2 is slidably connected to a side wall of the housing 1, a filter assembly for filtering air is disposed in the filter cavity 2, an air guide assembly 7 for guiding air is symmetrically disposed in the housing 1, and the air guide assembly 7 is connected to an angle adjusting assembly;
the angle adjusting assemblies are arranged in two groups and are symmetrically arranged about a horizontal central axis of the shell 1, each angle adjusting assembly comprises a servo motor 3, a driving gear 4 and an internal thread sleeve 5, the servo motors 3 are fixedly arranged on the side wall of the shell 1, the output ends of the servo motors 3 are fixedly connected with the driving gears 4, the internal thread sleeves 5 are fixedly arranged on the driving gears 4, the internal thread sleeves 5 are sleeved outside the first screw rods 6, and the internal thread sleeves 5 are connected with the first screw rods 6 through threads;
as shown in fig. 2-4, the first screw 6 is slidably connected to the side wall of the housing 1, and the side wall of the housing 1 has a limiting and guiding function on the first screw 6, so that the air guide assembly 7 is prevented from falling off, the normal operation of the air guide assembly 7 is ensured, and ventilation and filtration are facilitated;
the end part of the first screw rod 6 is fixedly provided with a connecting block 16, the front side of the connecting block 16 is hinged with a hinged block 10, the hinged block 10 is movably arranged in a hinged groove 24, a buffer spring 11 for protecting the hinged block 10 is also fixedly arranged in the hinged groove 24, one end of the buffer spring 11 is fixedly connected with the hinged block 10, and the hinged groove 24 is fixedly connected with an air guide assembly 7;
the air guide assembly 7 comprises an air guide plate 8, a hinged seat 9 and a supporting plate 20, the air guide plate 8 is obliquely arranged, the bottom of the air guide plate 8 is fixed on the supporting plate 20, the supporting plate 20 is fixedly arranged on the hinged seat 9, and the hinged seat 9 is rotatably connected with the side wall of the shell 1;
when the air guide plate is used, the servo motor 3 is started, the servo motor 3 drives the driving gear 4 to rotate, the driving gear 4 drives the internal thread sleeve 5 to rotate, and the internal thread sleeve 5 drives the first screw rod 6 to move up and down, so that the first screw rod 6 drives the connecting block 16 and the air guide plate 8 to swing, and the ventilation quantity is adjusted;
as shown in fig. 5-6, a plurality of noise reduction grooves 12 for noise reduction are uniformly distributed on the air deflector 8, noise reduction components are arranged in the noise reduction grooves 12, each noise reduction component comprises a noise reduction rod 13, a buffer rod 14 and a connecting frame 15, the noise reduction rods 13 are uniformly distributed at the tops of the noise reduction grooves 12, the noise reduction rods 13 are fixedly mounted on the connecting frames 15, the connecting frames 15 are connected with the side walls of the noise reduction grooves 12 through buckles, the buffer rods 14 are mounted at the bottoms of the noise reduction grooves 12, and the buffer rods 14 are made of elastomer materials;
the arrangement of the silencing component plays a role in silencing and reducing noise, and the arrangement of the buffer rod 14 can play a role in slowing down the impact of air on the air deflector 8, so that the air deflector 8 is protected;
a second screw 22 is arranged on one side of the upper angle adjusting assembly, the upper end and the lower end of the second screw 22 are respectively rotatably connected with the shell 1 through bearings, a driven gear 21 is fixedly mounted at the top of the second screw 22, the driven gear 21 is in meshing transmission with the driving gear 4 above, a thread block 23 is sleeved outside the second screw 22, the second screw 22 is in threaded connection with the thread block 23, and the thread block 23 is fixedly connected with the side wall of the filter cavity 2;
the driving gear 4 rotates and can drive the driven gear 21 to rotate, the driven gear 21 drives the second screw rod 22 to rotate, the second screw rod 22 drives the thread block 23 and the filter cavity 2 to move up and down, the contact area between the filter assembly and the air is increased, and the filter efficiency is improved.
As shown in fig. 7-8, the filter assembly includes a partition 17 and filter screens 19, the partition 17 is fixedly installed in the middle of the filter chamber 2, a plurality of filter screens 19 are symmetrically disposed on the upper and lower sides of the partition 17, the filter screens 19 are obliquely disposed, one side of each filter screen 19 close to the partition 17 is rotatably connected with the partition 17, one end of each partition 17 far from the corresponding filter screen 19 is hinged to a hinge frame 18, and the hinge frames 18 are fixedly installed on the side walls of the filter chamber 2;
the filtering component is arranged to filter air, so that the air is clean, the outside air is prevented from polluting the indoor air, and the cleanliness of the indoor air is guaranteed.
In summary, the working principle of the invention is as follows: during the use, open servo motor 3, servo motor 3 drives driving gear 4 and rotates, and driving gear 4 drives internal thread sleeve 5 and rotates, and internal thread sleeve 5 drives first screw rod 6 and reciprocates to make first screw rod 6 drive connecting block 16 and 8 swings of aviation baffle, thereby realized the regulation to the air volume.
The driving gear 4 rotates and can drive the driven gear 21 to rotate, the driven gear 21 drives the second screw rod 22 to rotate, the second screw rod 22 drives the thread block 23 and the filter cavity 2 to move up and down, the contact area between the filter assembly and the air is increased, and the filter efficiency is improved.
According to the embodiment of the invention, the filtering component is arranged, the filtering of air is realized by the arrangement of the filtering component, the cleanness of the air is ensured, the outdoor air is prevented from polluting the indoor air, the cleanliness of the indoor air is ensured, the arrangement of the silencing component plays a role in silencing and reducing noise, and the arrangement of the buffer rod 14 can play a role in slowing down the impact of the air on the air deflector 8, so that the air deflector 8 is protected.
Although several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A ventilation filtering device for civil air defense engineering comprises a shell (1) and a filtering cavity (2), wherein the filtering cavity (2) is arranged in the shell (1), and the filtering cavity (2) is in sliding connection with the side wall of the shell (1), and is characterized in that a filtering component for filtering air is arranged in the filtering cavity (2), meanwhile, an air guide component (7) for guiding the air is symmetrically arranged in the shell (1), and the air guide component (7) is connected with an angle adjusting component; the angle adjusting assembly comprises a servo motor (3), a driving gear (4) and an internal thread sleeve (5), the servo motor (3) is fixedly installed on the side wall of the shell (1), the output end of the servo motor (3) is fixedly connected with the driving gear (4), the internal thread sleeve (5) is fixedly installed on the driving gear (4), the internal thread sleeve (5) is sleeved outside the first screw (6), and the internal thread sleeve (5) is connected with the first screw (6) through threads; the air guide assembly (7) comprises an air guide plate (8), a hinged seat (9) and a supporting plate (20), the air guide plate (8) is obliquely arranged, the bottom of the air guide plate (8) is fixed on the supporting plate (20), the supporting plate (20) is fixedly arranged on the hinged seat (9), and the hinged seat (9) is rotatably connected with the side wall of the shell (1); a plurality of noise reduction grooves (12) for noise reduction are uniformly distributed on the air deflector (8), noise reduction components are arranged in the noise reduction grooves (12), each noise reduction component comprises a noise reduction rod (13), a buffer rod (14) and a connecting frame (15), the noise reduction rods (13) are uniformly distributed at the tops of the noise reduction grooves (12), the noise reduction rods (13) are fixedly arranged on the connecting frames (15), the connecting frames (15) are connected with the side walls of the noise reduction grooves (12) through buckles, and the buffer rods (14) are arranged at the bottoms of the noise reduction grooves (12); the filter assembly comprises a partition plate (17) and filter screens (19), the partition plate (17) is fixedly installed in the middle of the filter cavity (2), a plurality of filter screens (19) are symmetrically arranged on the upper side and the lower side of the partition plate (17), the filter screens (19) are obliquely arranged, one side, close to the partition plate (17), of each filter screen (19) is rotatably connected with the partition plate (17), one end, far away from the filter screens (19), of the partition plate (17) is hinged with a hinge frame (18), and the hinge frame (18) is fixedly installed on the side wall of the filter cavity (2); top one side of angle adjusting assembly be provided with second screw rod (22), the upper and lower both ends of second screw rod (22) are rotated with casing (1) through the bearing respectively and are connected, the top fixed mounting of second screw rod (22) has driven gear (21), driven gear (21) and top driving gear (4) meshing transmission, the outside cover of second screw rod (22) is equipped with screw block (23), passes through threaded connection between second screw rod (22) and screw block (23), the lateral wall fixed connection of screw block (23) and rose chamber (2).
2. A ventilation filter device for civil air defense construction according to claim 1, characterized in that the angle adjustment assemblies are provided in two groups and are symmetrically arranged about the horizontal central axis of the housing (1).
3. Air exchange filter for civil air defence according to claim 2, characterised in that the first screw (6) is slidingly connected to the side wall of the casing (1).
4. The ventilation and filtration device for the civil air defense engineering as claimed in claim 1, wherein the end of the first screw (6) is fixedly provided with a connecting block (16), the front side of the connecting block (16) is hinged with a hinged block (10), the hinged block (10) is movably arranged in a hinged groove (24), a buffer spring (11) for protecting the hinged block (10) is also fixedly arranged in the hinged groove (24), one end of the buffer spring (11) is fixedly connected with the hinged block (10), and the hinged groove (24) is fixedly connected with an air guide assembly (7).
5. A ventilation filter device for civil air-defense engineering according to claim 1, characterized in that the buffer rods (14) are made of elastomer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165990.6A CN112246042B (en) | 2020-10-27 | 2020-10-27 | Ventilation filtering device for civil air defense engineering |
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| CN202011165990.6A CN112246042B (en) | 2020-10-27 | 2020-10-27 | Ventilation filtering device for civil air defense engineering |
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| CN112246042A CN112246042A (en) | 2021-01-22 |
| CN112246042B true CN112246042B (en) | 2021-07-23 |
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| CN113028481A (en) * | 2021-03-01 | 2021-06-25 | 河北科技师范学院 | Warm logical energy-saving equipment for building |
| WO2023082043A1 (en) * | 2021-11-09 | 2023-05-19 | 湖南大匠农业科技有限公司 | Humidification and ventilation device for use in eco-technological agriculture |
| CN114097483B (en) * | 2021-11-09 | 2023-10-31 | 湖南大匠农业科技有限公司 | Humidification ventilation unit is used to ecological science and technology agricultural |
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