Air pipe filtering structure for corridor

Abstract

The invention provides an air pipe filtering structure for a corridor, which comprises a rectangular shell, and two inlets and outlets communicated with the interior of the shell are formed in each of the two sides of the shell; the installation boxes are fixedly installed on the two inlets and outlets located in the same side of the shell, and secondary filtering assemblies used for filtering tiny impurities in air are installed in the installation boxes; an air inlet pipe is arranged on the other side of the mounting box, a pipe opening of the air inlet pipe is round, a first-stage filtering assembly is assembled in the air inlet pipe, and the two sides of the mounting box are open and communicate with the two inlets and outlets and the air inlet pipe correspondingly. According to the air pipe filtering structure for the corridor, provided by the scheme, tiny impurities in air can be efficiently filtered out, the capability of rapidly discharging smoke in an emergency situation is achieved, cleaning and maintenance are easy, it is ensured that the quality of air in the corridor meets the health standard, and the life quality and safety guarantee of residents are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of air ducts, and in particular relates to an air duct filtering structure for corridors. Background Art

[0002] As a passage for personnel flow and emergency evacuation, the air quality of the corridor is crucial to the health and safety of residents. Traditional corridor ventilation ducts often only have basic ventilation functions and lack effective air filtration and purification mechanisms, resulting in poor air quality in the corridor, which may even cause respiratory diseases or fire hazards. Summary of the invention

[0003] In order to solve the technical problem that the ventilation ducts in the corridor lack an effective air filtering and purification mechanism, the present invention provides a duct filtering structure for the corridor.

[0004] The present invention is implemented as follows: a duct filter structure for corridors comprises: a rectangular shell, with two inlets and outlets connected to the shell installed on both sides of the shell; an installation box fixedly installed on the two inlets and outlets located on the same side of the shell, with a secondary filter assembly for filtering tiny impurities in the air installed in the installation box; an air inlet pipe is arranged on the other side of the installation box, the pipe mouth of the air inlet pipe is circular and a primary filter assembly is installed inside, and both sides of the installation box are openings and are respectively connected to the two inlets and outlets and the air inlet pipe.

[0005] Preferably, the same cylindrical tube is fixedly installed on the top inner wall and the bottom inner wall of the shell, and a plurality of partitions are fixedly installed between the cylindrical tube and the inner wall of the shell, thereby dividing the shell into an installation room, two first compartments and two second compartments; wherein, the installation room is used to install an exhaust air supply assembly, which is used not only to supply clean air to the corridor, but also to exhaust the smoke generated in the corridor in emergency situations; two through holes are provided on the cylindrical tube, which are respectively connected to the two second compartments, and a three-way pipeline is fixedly installed on the top of the shell, which is respectively connected to the installation room and the two first compartments.

[0006] Preferably, the air extraction assembly includes: a fan turbine rotatably arranged in the installation chamber; a main motor fixedly installed at the bottom of the shell and with the output shaft extending into the installation chamber, and the fan turbine is fixedly sleeved on the output shaft of the main motor.

[0007] Preferably, blocking plates are slidably fitted on the inner walls on both sides of the shell for blocking the inlets and outlets on both sides of the shell, and a moving assembly is installed on the shell for synchronously moving the two blocking plates to switch the opening and closing of the two inlets and outlets on both sides, and the moving assembly includes: two screw rods that are rotatably installed in the shell and extend to the outside of the shell at the same end, and the two screw rods are threadedly sleeved with connecting blocks that are respectively fixedly connected to the two blocking plates; a switching motor that is fixedly installed in the shell and has two main synchronous wheels fixedly sleeved on the output shaft; two transmission synchronous wheels that are respectively rotatably sleeved on one end of the two screw rods located outside the shell, and the two transmission synchronous wheels and the two main synchronous wheels are respectively sleeved with synchronous belts.

[0008] Preferably, a protective cover for protecting two transmission synchronous wheels, two main synchronous wheels and two synchronous belts is fixedly installed on one side of the shell, and the two transmission synchronous wheels and the two main synchronous wheels are respectively sleeved with synchronous belts located in the protective cover.

[0009] Preferably, the same two-in-one connecting pipe is fixedly installed on the two inlets and outlets of the shell near the second compartment, respectively communicating with the two inlets and outlets, and an exhaust pipe extending into the corridor is installed on one end of the two-in-one connecting pipe.

[0010] Preferably, the primary filter assembly comprises: an annular seat fixedly mounted on the inner wall of the air inlet pipe; and a fine filter mesh mounted on one side of the annular seat by screws and used for filtering fine particles in the air.

[0011] Preferably, the air inlet duct is provided with a cleaning component for cleaning the fine filter, and the cleaning component comprises: a rotating shaft tube which rotates in the air inlet duct and passes through the center position of the fine filter, and two suction hoods are fixedly sleeved on the rotating shaft tube; two mounting plates which are respectively fixedly mounted in the two suction hoods and fixedly sleeved on the rotating shaft tube, and bristles in contact with both sides of the fine filter are mounted on one side of the two mounting plates close to each other, for cleaning dust and impurities attached to the fine filter when the rotating shaft tube rotates; a rectangular frame which is arranged in the air inlet duct and rotatably sleeved on the rotating shaft tube, and support tubes fixed to the inner wall of the air inlet duct are symmetrically mounted on both sides of the rectangular frame; wherein a plurality of dust suction holes are opened on the rotating shaft tube, and the dust suction holes are located in the dust suction hood.

[0012] Preferably, the air inlet duct is equipped with a collection component for collecting dust and impurities swept off the fine filter, and the collection component includes: a sleeve rotatably mounted on one end of the rotating shaft tube and fixed to one side of the rectangular frame, one end of the sleeve is connected to a connecting elbow connected to any supporting tube; a rectangular box fixedly mounted on one side of the air inlet duct, the rectangular box is connected to the connecting elbow and the corresponding supporting tube; an exhaust fan mounted on one side of the rectangular box and the air inlet is connected to the rectangular box, the air outlet of the exhaust fan is connected to the dust removal tube; a dust collecting box detachably mounted on the top of the air inlet duct, and the air inlet of the dust collecting box is detachably connected to one end of the dust removal tube.

[0013] Preferably, the matching motor on the exhaust fan is a dual-shaft motor, one output shaft is used to install the impeller component of the exhaust fan, and the other output shaft is used to install a linkage assembly, the linkage assembly includes: a rotating rod that passes through the corresponding support tube and is sealed and rotatably connected to the rectangular frame and the rectangular box, one end of the rotating rod and the rotating shaft tube is fixedly sleeved with two meshing bevel gears; two pulleys are respectively fixedly sleeved on the other end of the rotating rod and the other output shaft of the matching motor of the exhaust fan, and a belt is sleeved on the two pulleys.

[0014] Preferably, the secondary filter assembly includes: an inverted U-shaped track frame assembled in the installation box, a track groove being provided on the inner wall of the track frame; a HEPA filter plate installed in the track groove for filtering tiny impurities; wherein an operating port for pulling out the HEPA filter plate is provided at the bottom of the installation box, and a bottom cover for sealing the operating port is detachably installed.

[0015] Preferably, the installation box is also equipped with a rotating assembly for adjusting the rotation of the HEPA filter plate and the track frame, so that the channel of the installation box can be opened when the smoke in the corridor is extracted outward, and the rotating assembly includes: two central axes fixed on both sides of the track frame and rotatably connected to the inner walls of the two sides of the installation box respectively; a toggle piece fixedly mounted on any central axis, the toggle piece and one side of the installation box are fixedly mounted with hinge shafts, and connecting pieces are rotatably mounted on the two hinge shafts; an electric push rod arranged on one side of the installation box and the base and the output rod are respectively fixedly connected to the two connecting pieces, which is used to drive the track frame and the HEPA filter plate therein to rotate during extension and retraction.

[0016] Preferably, a metal screen is installed on the port of the air inlet pipe to prevent birds and floating garbage from entering.

[0017] Preferably, the shell is also equipped with two supporting components for use in conjunction with each other so that the shell can be hoisted on the top wall of the wall, and the supporting components include: a supporting bar seat that can be detachably mounted on the bottom of the shell and symmetrically provided with two mounting holes; two supporting screw rods that pass through the two mounting holes and are fixedly connected to the supporting bar seat by nuts; and a fixing frame fixed to the top of the supporting screw rods by fixing nuts, and the fixing frame is fixed to the top wall of the wall by expansion bolts.

[0018] Compared with the related technology, the air duct filtering structure for corridors provided by the present invention has the following beneficial effects: the present invention adopts a multi-stage filtering design, including a first-level fine filter and a second-level HEPA filter plate, which can efficiently filter fine particles and tiny impurities in the air, significantly improve the air quality in the corridor, and provide residents with a healthier and fresher living environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A schematic diagram of a top view of a duct filter structure for a corridor provided by the present invention; Figure 2 A schematic diagram of a top view and cross-sectional structure of a corridor air duct filtering structure provided by the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG. Figure 4 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG. Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part C shown in FIG. Figure 6 for Figure 2 An enlarged structural diagram of part D shown in FIG. Figure 7 A schematic side view of a duct filter structure for a corridor provided by the present invention; Figure 8 It is a schematic diagram of a top view and cross-section structure of a cleaning component in the present invention; Fig. 9 for Figure 8 An enlarged structural diagram of part E shown in FIG. Fig.10 It is a side cross-sectional structural schematic diagram of the secondary filter assembly and the installation box in the present invention; Fig.11 It is a side view structural schematic diagram of the rotating assembly and the mounting box in the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the air suction cover and the mounting plate in the present invention; Fig.13 It is a schematic diagram of the front view structure of the track frame and the hepa filter plate of the extrusion block in the present invention; Fig.14 It is a front view structural schematic diagram of the fine filter in the present invention; Fig.15 It is a front view structural schematic diagram of the metal fence in the present invention; Fig.16 It is the wind direction diagram under two working modes in the present invention.

[0020] Figure numerals: 1, shell; 2, inlet and outlet; 3, installation box; 4, air inlet pipe; 5, two-in-one connecting pipe; 6, exhaust pipe; 7, cylindrical tube; 8, partition; 9, installation room; 10, first compartment; 11, second compartment; 12, fan turbine; 13, main motor; 14, blocking plate; 15, screw; 16, connecting block; 17, switching motor; 18, main synchronous wheel; 19, transmission synchronous wheel; 20, synchronous belt; 21, protective cover; 22, three-way pipeline; 30, track frame; 31, HEPA filter plate; 32, Bottom cover; 33, middle axis; 34, toggle plate; 35, electric push rod; 36, connecting plate; 40, annular seat; 41, fine filter; 42, shaft tube; 43, air suction hood; 44, mounting plate; 45, rectangular frame; 46, support tube; 47, rotating rod; 48, bevel gear; 49, rectangular box; 50, exhaust fan; 51, dust removal pipe; 52, dust collection box; 53, pulley; 54, belt; 55, metal screen; 56, connecting elbow; 57, sleeve; 60, support bar seat; 61, support screw rod; 62, fixing frame. DETAILED DESCRIPTION

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The embodiment of the present invention provides a ventilation duct filtering structure for a corridor, such as Figure 1-16 As shown, the air duct filtering structure for the corridor comprises: a rectangular shell 1, with two inlets and outlets 2 connected to the shell 1 installed on both sides of the shell 1; an installation box 3 fixedly installed on the two inlets and outlets 2 located on the same side of the shell 1, and a secondary filter component for filtering tiny impurities in the air is installed in the installation box 3; an air inlet pipe 4 is arranged on the other side of the installation box 3, the pipe mouth of the air inlet pipe 4 is circular and a primary filter component is installed inside, and both sides of the installation box 3 are open and are respectively connected to the two inlets and outlets and the air inlet pipe 4.

[0023] In this embodiment, the corridor air duct filtration structure cleverly combines the design concepts of multi-stage filtration, intelligent ventilation and convenient maintenance, providing comprehensive protection for the corridor air quality. Specifically, the structure includes a rectangular shell 1, and two inlets and outlets 2 connected to the inside of the shell 1 are carefully configured on both sides of the shell 1. This design not only ensures the smooth flow of air, but also provides the necessary space for realizing multi-stage filtration.

[0024] The installation box 3 is fixedly installed on the two inlets and outlets 2 on the same side of the housing 1. A secondary filter component is embedded in the installation box 3, which is specially used to capture and filter tiny impurities in the air, such as bacteria, viruses and fine particles, thereby significantly improving the air quality in the corridor. At the same time, the other side of the installation box 3 is cleverly connected to the air inlet pipe 4. The pipe mouth of the air inlet pipe 4 is designed to be circular, and a primary filter component is carefully assembled inside to preliminarily filter larger particles of dust and debris. The opening design on both sides of the installation box 3 enables it to seamlessly connect the two inlets and outlets 2 and the air inlet pipe 4, forming an efficient and coherent filtering system.

[0025] In actual application, this corridor air duct filtration structure has shown significant beneficial effects. First, through the synergistic effect of the primary filtration component and the secondary filtration component, the structure can achieve deep purification of the air in the corridor, effectively remove various pollutants in the air, and provide residents with a healthier and fresher living environment. Secondly, the design of the structure takes into account the ventilation needs in emergency situations. By flexibly adjusting the opening and closing status of the inlet and outlet 2, it can quickly respond to emergencies such as fires, discharge smoke and harmful gases in the corridor to the outside, and ensure the safe evacuation of personnel.

[0026] In a further preferred embodiment of the present invention, the same cylindrical tube 7 is fixedly installed on the top inner wall and the bottom inner wall of the shell 1, and a plurality of partitions 8 are fixedly installed between the cylindrical tube 7 and the inner wall of the shell 1, thereby dividing the shell 1 into an installation room 9, two first compartments 10 and two second compartments 11; wherein, the installation room 9 is used to install an exhaust air component, which is used to supply clean air to the corridor and to exhaust the smoke generated in the corridor in emergency situations; two through holes are provided on the cylindrical tube 7, which are respectively connected to the two second compartments 11, and a three-way pipe 22 is fixedly installed on the top of the shell 1, and the three-way pipe is respectively connected to the installation room 9 and the two first compartments 10.

[0027] In this embodiment, the same cylindrical barrel 7 is fixedly mounted on the top inner wall and the bottom inner wall of the housing 1. The cylindrical barrel 7 and the inner wall of the housing 1 are cleverly arranged with multiple partitions 8 to divide the interior of the housing 1 into an installation room 9, two first compartments 10, and two second compartments 11. This structural design not only optimizes space utilization, but also realizes graded treatment and flow control of air.

[0028] In the installation room ‌9‌, an exhaust air assembly is specially configured, which has the dual functions of supplying clean air to the corridor and quickly extracting the smoke in the corridor to the outside in case of emergency, ensuring the continuous optimization of the corridor air quality and rapid response in emergency situations.

[0029] The two through holes carefully opened on the cylinder 7 are closely connected to the two second compartments 11, respectively, providing a smooth passage for the circulation of air. At the same time, the three-way pipe 22 fixedly installed on the top of the shell 1 is cleverly designed to closely connect the installation chamber 9 with the two first compartments 10, forming an efficient and orderly air circulation and filtration system.

[0030] Through this series of innovative designs, the present invention not only achieves comprehensive filtration and purification of the air in the corridor, but also significantly improves the emergency response capability of the system. In actual use, clean air is delivered into the corridor through the air extraction component, providing a healthy and fresh living environment for residents; and in emergency situations such as fire, the air extraction component can be quickly activated to extract the smoke in the corridor outward through a specific airflow path, ensuring the safety and smoothness of personnel evacuation.

[0031] In a further preferred embodiment of the present invention, the air extraction component includes: a fan turbine 12 rotatably arranged in the installation chamber 9; a main motor 13 fixedly installed at the bottom of the shell 1 and with an output shaft extending into the installation chamber 9, and the fan turbine 12 is fixedly sleeved on the output shaft of the main motor 13.

[0032] In this embodiment, the core components of the air extraction assembly include a fan turbine 12 rotatably disposed in the installation chamber 9 and a main motor 13 fixedly mounted at the bottom of the housing 1 and with the output shaft extending into the installation chamber 9. The fan turbine 12 is fixedly sleeved on the output shaft of the main motor 13, thereby achieving a close connection and efficient drive with the main motor 13.

[0033] The forward and reverse rotation of the main motor 13 causes the fan turbine 12 to rotate in different directions, thereby achieving the dual functions of delivering clean air to the corridor and extracting smoke generated in the corridor in case of emergencies. Under normal working conditions, the main motor 13 rotates forward, driving the fan turbine 12 to rotate at high speed, thereby delivering clean air to the corridor, providing a healthy and fresh living environment for the residents. The air delivery direction is as follows: Fig.16 As shown in the figure above; in the event of an emergency, such as a fire, the component can quickly switch modes, start the main motor 13 to reverse, and make the fan turbine 12 rotate in the opposite direction at high speed, so as to pump the smoke and harmful gases in the corridor outward through a specific airflow path. The air delivery direction is as shown in Fig.16 As shown in the figure below, the smoke discharge is accelerated to ensure the safe and smooth evacuation of personnel.

[0034] In a further preferred embodiment of the present invention, blocking plates 14 are slidably fitted on the inner walls on both sides of the shell 1 for blocking the inlets and outlets 2 on both sides of the shell 1, and a moving assembly is mounted on the shell 1 for synchronously moving the two blocking plates 14 to switch the opening and closing of the two inlets and outlets 2 on both sides, and the moving assembly includes: two screw rods 15 rotatably mounted in the shell 1 and extending to the outside of the shell 1 at the same end, and the two screw rods 15 are threadedly sleeved with connecting blocks 16 respectively fixedly connected to the two blocking plates 14; a switching motor 17 fixedly mounted in the shell 1 and with two main synchronous wheels 18 fixedly sleeved on the output shaft; two transmission synchronous wheels 19 respectively rotatably sleeved on one end of the two screw rods 15 located outside the shell 1, and the two transmission synchronous wheels 19 and the two main synchronous wheels 18 are respectively sleeved with synchronous belts 20.

[0035] In this embodiment, the inner walls of both sides of the shell 1 are slidably fitted with blocking plates 14, and this design cleverly realizes the flexible blocking of the inlets and outlets 2 on both sides of the shell 1. At the same time, the shell 1 is also equipped with a moving component, which can synchronously move the two blocking plates 14, so as to easily switch the opening and closing states of the inlets and outlets 2 on both sides. Specifically, the moving component includes two screws 15, a connecting block 16, a switching motor 17, a main synchronous wheel 18, a transmission synchronous wheel 19 and a synchronous belt 20. Both screws 15 are rotatably installed in the shell 1, and the same end extends to the outside of the shell 1, and they are both threadedly sleeved with a connecting block 16 fixedly connected to the blocking plate 14. In this way, when the screw 15 rotates, the connecting block 16 will drive the blocking plate 14 to move along the axial direction of the screw 15, thereby realizing the opening and closing of the inlet and outlet 2. The switching motor 17 is fixedly installed in the housing 1, and two main synchronous wheels 18 are fixedly sleeved on its output shaft. Two transmission synchronous wheels 19 are respectively rotatably sleeved on one end of the two screw rods 15 located outside the housing 1, and are connected to the main synchronous wheels 18 through the synchronous belt 20. In this way, when the switching motor 17 is started, it will drive the two screw rods 15 to rotate synchronously through the transmission of the main synchronous wheel 18, the synchronous belt 20 and the transmission synchronous wheel 19, thereby realizing the synchronous movement of the two blocking plates 14.

[0036] This design not only improves the automation level of the opening and closing of the entrance and exit 2, but also ensures the consistency of the opening and closing status of the entrance and exit 2 on both sides, thereby optimizing the operating efficiency of the entire system. In practical applications, this design can significantly improve the user experience. For example, when the ventilation mode needs to be quickly switched or in response to an emergency, the opening and closing status of the entrance and exit 2 can be adjusted quickly and accurately to ensure air circulation and personnel safety in the corridor.

[0037] In a further preferred embodiment of the present invention, a protective cover 21 for protecting two transmission synchronous wheels 19, two main synchronous wheels 18 and two synchronous belts 20 is fixedly installed on one side of the shell 1, and the two transmission synchronous wheels 19 and the two main synchronous wheels 18 are respectively provided with synchronous belts 20 located in the protective cover 21.

[0038] In this embodiment, a protective cover 21 is fixedly installed on one side of the housing 1. The protective cover 21 is specifically used to protect the two transmission synchronous wheels 19, the two main synchronous wheels 18, and the synchronous belt 20 sleeved on the two sets of wheels. This design effectively protects the synchronous belt transmission system, reduces the interference and damage to the transmission system by external factors, such as dust, debris, etc., and also improves the stability and reliability of the entire transmission system.

[0039] In addition, the protective cover 21 can also play a certain role in sound insulation and shock absorption, reducing the noise and vibration generated during the synchronous belt transmission process, thereby improving the working environment and user experience of the equipment. At the same time, due to the fixed installation of the protective cover 21, it is also convenient for the maintenance and maintenance of the equipment, allowing operators to more conveniently inspect and repair the synchronous belt transmission system.

[0040] In a further preferred embodiment of the present invention, the same two-in-one connecting pipe 5 is fixedly installed on the two inlets and outlets 2 of the shell 1 close to the second compartment 11, which are respectively connected to the two inlets and outlets 2, and an exhaust pipe 6 extending into the corridor is installed on one end of the two-in-one connecting pipe 5.

[0041] In this embodiment, the design of the housing 1 cleverly integrates the exhaust function. Specifically, the same two-in-one connecting pipe 5 is fixedly installed on the two inlets and outlets 2 near the second compartment 11. This design enables the two-in-one connecting pipe 5 to be connected to the two inlets and outlets 2 at the same time, thereby optimizing the airflow path. Furthermore, an exhaust pipe 6 is provided on one end of the two-in-one connecting pipe 5, and the exhaust pipe 6 extends into the corridor, ensuring that the dirty air in the room is effectively removed while avoiding interference with the indoor environment.

[0042] In a further preferred embodiment of the present invention, the primary filter assembly includes: an annular seat 40 fixedly mounted on the inner wall of the air inlet pipe 4; and a fine filter 41 mounted on one side of the annular seat 40 by screws and used to filter fine particles in the air.

[0043] In this embodiment, the design of the filter assembly is particularly sophisticated, specifically including an annular seat 40 fixedly mounted on the inner wall of the air inlet pipe 4, and a fine filter 41 fastened to one side of the annular seat 40 by screws. The main function of the fine filter 41 is to effectively filter fine particles in the air, thereby improving the cleanliness of the air entering the housing.

[0044] During the use of this design, air is first sucked in through the air inlet pipe 4, and then strictly filtered through the fine filter 41. Fine particles are effectively intercepted, and relatively clean air continues to circulate into the subsequent processing link, thereby extending the service life of the HEPA filter plate in the subsequent processing link.

[0045] In a further preferred embodiment of the present invention, a cleaning component for cleaning the fine filter 41 is provided on the air inlet pipe 4, and the cleaning component includes: a rotating shaft tube 42 that rotates in the air inlet pipe 4 and passes through the center position of the fine filter 41, and two suction hoods 43 are fixedly sleeved on the rotating shaft tube 42; two mounting pieces 44 are respectively fixedly mounted in the two suction hoods 43 and fixedly sleeved on the rotating shaft tube 42, and bristles in contact with both sides of the fine filter 41 are installed on the two mounting pieces 44 on one side close to each other, so as to clean the dust and impurities attached to the fine filter 41 when the rotating shaft tube 42 rotates; a rectangular frame 45 is arranged in the air inlet pipe 4 and rotatably sleeved on the rotating shaft tube 42, and support tubes 46 fixed to the inner wall of the air inlet pipe 4 are symmetrically installed on both sides of the rectangular frame 45; wherein, a plurality of dust suction holes are opened on the rotating shaft tube 42, and the dust suction holes are located in the dust suction hood 43.

[0046] In this embodiment, the air inlet pipe 4 is equipped with an innovative cleaning component, which is ingeniously designed to automatically clean the dust and impurities on the fine filter 41. The specific structure includes: a rotating shaft tube 42 that can rotate freely in the air inlet pipe 4, which cleverly penetrates the center of the fine filter 41; two suction hoods 43 are fixedly sleeved on the rotating shaft tube 42, and these two suction hoods not only enhance the dust collection effect, but also ensure the comprehensiveness of the cleaning process. In addition, the two suction hoods 43 are respectively fixedly installed with mounting plates 44 inside, which are also firmly sleeved on the rotating shaft tube 42, and the mounting plates 44 are equipped with bristles that are in close contact with both sides of the fine filter 41 on the sides close to each other. These bristles rotate under the drive of the rotating shaft tube 42 to effectively clean the dust and impurities on the fine filter 41.

[0047] In order to stably support and guide the rotation of the shaft tube 42, a rectangular frame 45 is further provided in the air inlet pipe 4, which is rotatably sleeved on the shaft tube 42 and fixedly connected to the inner wall of the air inlet pipe 4 through support tubes 46 symmetrically installed on both sides. Such a design not only ensures the stability of the cleaning assembly, but also makes the entire cleaning process smoother and more efficient.

[0048] During use, when the shaft tube 42 is driven to rotate, the air suction cover 43 and the bristles rotate accordingly, thereby fully cleaning the surface of the fine filter 41. The soft material and close arrangement of the bristles ensure the cleaning effect while avoiding damage to the fine filter 41. The stable support of the rectangular frame 45 and the support tube 46 ensures the stability and durability of the cleaning assembly in long-term use.

[0049] The beneficial effects of this embodiment are remarkable: it realizes automatic cleaning of the fine filter 41, greatly improving the filtering efficiency and service life; the innovative cleaning component design makes the cleaning process more convenient and efficient, and reduces maintenance costs; at the same time, the perfect combination of the entire cleaning component and the air inlet pipe 4 also demonstrates the outstanding advantages of the present invention in structural design and practicality.

[0050] In a further preferred embodiment of the present invention, a collecting component for collecting dust and impurities swept off the fine filter 41 is installed on the air inlet duct 4, and the collecting component includes: a sleeve 57 rotatably mounted on one end of the rotating shaft tube 42 and fixed to one side of the rectangular frame 45, one end of the sleeve 57 is connected to a connecting elbow 56 connected to any support tube 46; a rectangular box 49 fixedly mounted on one side of the air inlet duct 4, the rectangular box 49 is connected to the connecting elbow 56 and the corresponding support tube 46; an exhaust fan 50 installed on one side of the rectangular box 49 and the air inlet is connected to the rectangular box 49, the air outlet of the exhaust fan 50 is connected to the dust removal pipe 51; a dust collecting box 52 detachably mounted on the top of the air inlet duct 4, and the air inlet of the dust collecting box 52 is detachably connected to one end of the dust removal pipe 51.

[0051] In this embodiment, a collection component for collecting dust and impurities swept from the fine filter 41 is cleverly installed on the air inlet pipe 4. The design of this component not only ensures the high efficiency of the cleaning process, but also greatly improves the user experience. Specifically, the collection component includes a sleeve 57 that is rotatably sleeved on one end of the shaft tube 42 and fixed to one side of the rectangular frame 45. This design enables the sleeve 57 to rotate stably with the rotation of the shaft tube 42 while maintaining a firm connection with the rectangular frame 45. One end of the sleeve 57 is connected to any support tube 46 through a connecting elbow 56, ensuring the smooth transmission of dust and impurities‌12.

[0052] Furthermore, a rectangular box 49 is fixedly installed on one side of the air inlet pipe 4, and the rectangular box is connected to the connecting elbow 56 and the corresponding support pipe 46 to form a complete dust collection channel. An exhaust fan 50 is also installed on one side of the rectangular box 49, and its air inlet is connected to the rectangular box 49, and dust impurities are sucked in through strong suction. The air outlet of the exhaust fan 50 is connected to a dust removal pipe 51, which is used to guide dust impurities to the final collection location. Finally, the dust box 52 detachably installed on the top of the air inlet pipe 4 becomes the destination of dust impurities. The air inlet of the dust box 52 is detachably connected to one end of the dust removal pipe 51, which is convenient for users to disassemble and clean at any time, ensuring the long-term and effective operation of the collection component. Such a design not only simplifies the cleaning process, but also greatly improves the cleaning efficiency, allowing users to easily deal with the problem of dust impurities on the fine filter 41.

[0053] In a further preferred embodiment of the present invention, the matching motor on the exhaust fan 50 is a dual-shaft motor, one output shaft is used to install the impeller component of the exhaust fan 50, and the other output shaft is used to install a linkage assembly, the linkage assembly includes: a rotating rod 47 that passes through the corresponding support tube 46 and is sealed and rotatably connected to the rectangular frame 45 and the rectangular box 49, and one end of the rotating rod 47 and the rotating shaft tube 42 are fixedly sleeved with two meshing bevel gears 48; two pulleys 53 are respectively fixedly sleeved on the other end of the rotating rod 47 and the other output shaft of the matching motor of the exhaust fan 50, and a belt 54 is sleeved on the two pulleys 53.

[0054] In this embodiment, the motor on the exhaust fan 50 adopts a dual-shaft motor design, which greatly improves the overall performance and flexibility of the device. One output shaft of the dual-shaft motor is used to install the impeller component of the exhaust fan 50, ensuring that the exhaust fan can efficiently absorb the dust and impurities swept from the fine filter 41 and discharge them into the dust box 52 through the dust removal pipe 51. The other output shaft is cleverly used to install the linkage component to achieve coordinated work with the cleaning component.

[0055] The design of the linkage assembly is also ingenious, and it includes a rotating rod 47 that runs through the corresponding support tube 46 and is sealed and rotatably connected to the rectangular frame 45 and the rectangular box 49. The rotating rod 47 and one end of the rotating shaft tube 42 are connected by two meshing bevel gears 48 fixedly sleeved, ensuring the synchronization and stability of the rotation. In addition, the linkage assembly also includes two pulleys 53 fixedly sleeved on the other end of the rotating rod 47 and the other output shaft of the motor supporting the exhaust fan 50, respectively. The two pulleys are tightly connected by a sleeved belt 54, forming a reliable transmission mechanism.

[0056] When the motor of the exhaust fan 50 is started, it not only drives the impeller to rotate and generate suction, but also drives the shaft tube 42 and the cleaning component to rotate together through the linkage component. In this way, while the exhaust fan 50 sucks in dust and impurities, the cleaning component also cleans the fine filter 41, achieving the simultaneous operation of dust suction and cleaning, greatly improving the cleaning efficiency and effect.

[0057] The beneficial effects of this embodiment are significant: the application of the dual-axis motor enables the exhaust fan 50 and the cleaning component to work together, thereby improving the overall working efficiency; the design of the linkage component ensures the synchronization and stability of the rotation, thereby ensuring the cleaning effect; in addition, the entire system is compact in structure, easy to maintain, and has broad application prospects and market value.

[0058] In a further preferred embodiment of the present invention, the secondary filter assembly includes: an inverted U-shaped track frame 30 assembled in the installation box 3, and a track groove is provided on the inner wall of the track frame 30; a HEPA filter plate 31 installed in the track groove for filtering tiny impurities; wherein, an operating port for pulling out the HEPA filter plate 31 is provided at the bottom of the installation box 3, and a bottom cover 32 for sealing the operating port is detachably installed.

[0059] In this embodiment, the secondary filter assembly exhibits a unique and efficient design. The core of the assembly includes an inverted U-shaped track frame 30 assembled in the installation box 3, and the track groove is carefully opened on the inner wall. This design is not only stable but also convenient for the subsequent installation and replacement of the filter element. A hepa filter plate 31 specially used for filtering tiny impurities is installed in the track groove, and its efficient filtering performance can ensure a significant improvement in air quality.

[0060] In order to facilitate the user to regularly clean or replace the HEPA filter plate 31, an operation port is specially opened at the bottom of the installation box 3. This design takes into account the convenience in actual operation, allowing the user to easily pull out the HEPA filter plate 31 for maintenance. At the same time, in order to maintain the sealing of the installation box 3, a detachable bottom cover 32 is also provided at the operation port. When no operation is required, the bottom cover 32 can tightly close the operation port to prevent external dust or impurities from entering the box, thereby ensuring the continuous and efficient operation of the entire filtration system.

[0061] In a further preferred embodiment of the present invention, a rotating assembly for adjusting the rotation of the HEPA filter plate 31 and the track frame 30 is also installed on the installation box 3, so that the channel of the installation box 3 is opened when the smoke in the corridor is extracted outward, and the rotating assembly includes: two central shafts 33 fixed on both sides of the track frame 30 and rotatably connected to the inner walls on both sides of the installation box 3; a paddle plate 34 fixedly mounted on any central shaft 33, and the paddle plate 34 and one side of the installation box 3 are fixedly mounted with hinge shafts, and connecting pieces 36 are rotatably mounted on both hinge shafts; an electric push rod 35 arranged on one side of the installation box 3 and the base and the output rod are respectively fixedly connected to the two connecting pieces 36, which is used to drive the track frame 30 and the HEPA filter plate 31 therein to rotate during extension and retraction.

[0062] In this embodiment, a rotating assembly is cleverly installed on the installation box 3, and this design gives the HEPA filter plate 31 and the track frame 30 the function of flexible rotation. When the smoke in the corridor needs to be extracted outward, the rotating assembly can respond intelligently, driving the track frame 30 and the HEPA filter plate 31 inside it to rotate, thereby smoothly opening the passage of the installation box 3 and ensuring efficient exhaust of smoke.

[0063] The core structure of the rotating assembly includes two central shafts 33, which are respectively fixed on both sides of the track frame 30 and are rotatably connected to the inner walls of the two sides of the installation box 3. This design not only ensures the stable rotation of the track frame 30, but also ensures the sealing between it and the installation box 3. In addition, a toggle piece 34 is fixedly sleeved on any central shaft 33, and a hinge shaft is installed on one side of the toggle piece 34 and the installation box 3, and a connecting piece 36 is rotatably sleeved on the two hinge shafts. This series of sophisticated connection designs provides a stable transmission path for the drive of the electric push rod 35.

[0064] The electric push rod 35 is the power source of the rotating assembly, and its base and output rod are respectively fixedly connected to two connecting pieces 36. When the electric push rod 35 is extended and retracted, the track frame 30 and the HEPA filter plate 31 therein are driven to rotate through the synergistic effect of the connecting piece 36, the toggle piece 34 and the central axis 33. This intelligent rotation mechanism not only achieves a rapid response and efficient discharge of corridor smoke, but also ensures the flexibility and stability of the filtration system under different working conditions.

[0065] If it is necessary to discharge the smoke in the corridor to the outside, in order to improve the discharge efficiency, the electric push rod 35 is started to rotate the track frame 30 and the HEPA filter plate 31 by ninety degrees, and the installation box 3 channel is opened, thereby avoiding the HEPA filter plate 31 blocking the smoke and ensuring the discharge speed.

[0066] In a further preferred embodiment of the present invention, a metal screen 55 is installed on the port of the air inlet pipe 4 to prevent birds and floating garbage from entering.

[0067] In this embodiment, a metal screen 55 is cleverly installed on the port of the air inlet pipe 4. This design is intended to effectively prevent birds, floating garbage, etc. from entering the air duct, thereby ensuring the normal operation of the air duct and the cleanliness of the internal environment.

[0068] The metal screen 55 is the first line of defense for the air inlet duct 4. Its durable material can resist the impact and stay of birds, preventing them from entering the air duct to build nests or causing other interference. At the same time, the fine mesh design can also effectively block floating garbage, such as leaves and plastic bags, to prevent them from entering the air duct with the wind, causing blockage or affecting the ventilation efficiency of the air duct.

[0069] In a further preferred embodiment of the present invention, the shell 1 is also equipped with two supporting components for use in conjunction with each other so that the shell 1 can be hoisted on the top wall of the wall, and the supporting components include: a supporting bar seat 60 that can be detachably mounted on the bottom of the shell 1 and symmetrically has two mounting holes; two supporting screw rods 61 that pass through the two mounting holes and are fixedly connected to the supporting bar seat 60 by nuts; and a fixing frame 62 that is fixed to the top of the supporting screw rods 61 by fixing nuts, and the fixing frame 62 is fixed to the top wall of the wall by expansion bolts.

[0070] In this embodiment, the housing 1 is stably and flexibly suspended on the top wall by two supporting assemblies. The supporting assembly is composed of a supporting bar seat 60, a supporting screw rod 61 and a fixing frame 62, which ensures the stable installation of the housing 1.

[0071] Specifically, the support bar seat 60 is detachably mounted on the bottom of the shell 1, and two mounting holes are symmetrically provided. This design not only facilitates the installation and removal of the support assembly, but also ensures the balance of the shell 1 during the hoisting process. The two support screw rods 61 respectively pass through the two mounting holes, and are fixedly connected to the support bar seat 60 through nuts. The fixing frame 62 is fixed to the top of the support screw rod 61 and is firmly mounted on the top wall of the wall through expansion bolts. This design not only ensures that the shell 1 can be stably suspended on the top of the wall, but also enhances the stability and safety of the entire hoisting structure through the tightening effect of the expansion bolts; and such a design allows the length of the support screw rod 61 to be adjusted according to actual needs, so as to adapt to the installation requirements of walls of different heights.

[0072] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art, and those skilled in the art can fully implement them. Needless to say, the content protected by the present invention does not involve improvements to software and methods. The present solution also provides a controller, which is arranged on the equipment. When in use, each electrical equipment can be started and operated separately through the controller. A smoke sensor is also installed in the corridor for use in conjunction with the controller. The power connection method of each electrical equipment is an existing mature technology, which is a well-known technology to those skilled in the art and will not be elaborated on here.

[0073] In summary, compared with the related art, the present invention adopts a multi-stage filtration design, including a primary fine filter and a secondary HEPA filter plate, which can efficiently filter fine particles and tiny impurities in the air, significantly improve the air quality in the corridor, and provide residents with a healthier and fresher living environment; Through the blocking plate and the movable assembly, the present invention can flexibly switch the opening and closing states of the inlet and outlet to meet different ventilation needs. At the same time, in an emergency (such as a fire), the air extraction assembly can be quickly started to extract the smoke in the corridor to the outside to ensure the safe evacuation of personnel. The present invention is designed with a cleaning component and a collecting component, which can automatically clean the fine filter and collect the cleaned dust and impurities into the dust collection box, greatly reducing the maintenance workload. At the same time, the rotating design of the secondary filter component also facilitates the replacement and cleaning of the HEPA filter plate, improving the maintainability of the system.

Claims

1. A duct filter structure for corridors, characterized in that: include: A rectangular housing (1), with two inlets and outlets (2) connected to the interior of the housing (1) being installed on both sides of the housing (1); An installation box (3) fixedly mounted on two inlets and outlets (2) located on the same side of the housing (1), wherein a secondary filter assembly for filtering tiny impurities in the air is installed in the installation box (3); An air inlet pipe (4) is arranged on the other side of the installation box (3); the pipe opening of the air inlet pipe (4) is circular and a primary filter assembly is installed inside; both sides of the installation box (3) are open and are respectively connected to the two inlets and outlets and the air inlet pipe (4).

2. The air duct filtering structure for corridors according to claim 1, characterized in that: The same cylindrical barrel (7) is fixedly mounted on the top inner wall and the bottom inner wall of the shell (1), and a plurality of partitions (8) are fixedly mounted between the cylindrical barrel (7) and the inner wall of the shell (1), thereby dividing the shell (1) into an installation chamber (9), two first compartments (10) and two second compartments (11); The installation room (9) is used to install an air extraction and supply assembly, which is used to supply clean air to the corridor and to extract smoke generated in the corridor in case of emergencies. The cylindrical tube (7) is provided with two through holes, which are respectively connected to the two second compartments (11); a three-way pipeline (22) is fixedly installed on the top of the shell (1); the three-way pipeline is respectively connected to the installation chamber (9) and the two first compartments (10).

3. The air duct filtering structure for corridors according to claim 2, characterized in that: The air extraction component comprises: a fan turbine (12) rotatably arranged in the installation chamber (9); a main motor (13) fixedly mounted on the bottom of the housing (1) and with an output shaft extending into the installation chamber (9); the fan turbine (12) is fixedly sleeved on the output shaft of the main motor (13).

4. The air duct filtering structure for corridors according to claim 1, characterized in that: Blocking plates (14) are slidably attached to the inner walls of both sides of the shell (1) for blocking the inlets and outlets (2) on both sides of the shell (1), and a moving component is mounted on the shell (1) for synchronously moving the two blocking plates (14) to switch the opening and closing of the two inlets and outlets (2) on both sides, the moving component comprising: Two screw rods (15) are rotatably mounted in the housing (1) and extend at the same end outside the housing (1); the two screw rods (15) are threadedly sleeved with connection blocks (16) respectively fixedly connected to the two blocking plates (14); A switching motor (17) is fixedly installed in the housing (1) and has two main synchronous wheels (18) fixedly sleeved on its output shaft; Two transmission synchronous wheels (19) are rotatably sleeved on one end of the two screw rods (15) located outside the housing (1), and synchronous belts (20) are sleeved on the two transmission synchronous wheels (19) and the two main synchronous wheels (18).

5. The air duct filtering structure for corridors according to claim 4, characterized in that: A protective cover (21) for protecting two transmission synchronous wheels (19), two main synchronous wheels (18) and two synchronous belts (20) is fixedly mounted on one side of the housing (1); the two transmission synchronous wheels (19) and the two main synchronous wheels (18) are respectively sleeved with synchronous belts (20) and are located inside the protective cover (21).

6. The air duct filtering structure for corridors according to claim 1, characterized in that: The same two-in-one connecting pipe (5) is fixedly mounted on the two inlets (2) of the shell (1) close to the second compartment (11), and is respectively connected to the two inlets (2); an exhaust pipe (6) extending into the corridor is mounted on one end of the two-in-one connecting pipe (5).

7. The air duct filtering structure for corridors according to claim 1, characterized in that: The primary filter assembly comprises: An annular seat (40) fixedly mounted on the inner wall of the air inlet pipe (4); A fine filter (41) is mounted on one side of the annular seat (40) by means of screws and is used to filter fine particles in the air.

8. The air duct filtering structure for corridors according to claim 1, characterized in that: The secondary filter assembly comprises: an inverted U-shaped track frame (30) mounted in an installation box (3), the inner wall of the track frame (30) being provided with a track groove; a HEPA filter plate (31) mounted in the track groove for filtering tiny impurities; wherein an operating port for extracting the HEPA filter plate (31) is provided at the bottom of the installation box (3), and a bottom cover (32) for sealing the operating port is detachably mounted.

9. The air duct filtering structure for corridors according to claim 1, characterized in that: A metal screen (55) is installed on the port of the air inlet pipe (4) to prevent birds and floating garbage from entering.

10. The air duct filtering structure for corridors according to claim 1, characterized in that: The shell (1) is also equipped with two supporting components for use together so that the shell (1) can be hung on the top wall of the wall, and the supporting components include: a supporting bar seat (60) which is detachably mounted on the bottom of the shell (1) and symmetrically provided with two mounting holes; Two support screw rods (61) passing through the two mounting holes and fixedly connected to the support bar seat (60) via nuts; The fixing nut is fixed to a fixing frame (62) at the top end of the supporting screw rod (61), and the fixing frame (62) is fixed to the top wall of the wall by means of expansion bolts.

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