A filtration and purification device for a smart civil defense ventilation system

Abstract

This invention relates to the field of ventilation and filtration equipment technology, and discloses a filtration and purification device for a smart civil defense ventilation system. The device includes a ventilation duct, a filter assembly on the duct, and an auxiliary filtration mechanism on the filter assembly. The filter assembly includes an installation sleeve connected to the ventilation duct. The installation sleeve has evenly distributed air outlets, each with a fixed circular grille. An end plate is installed on the outer side of each air outlet, and a sleeve is fixedly fitted onto the end plate. A front grille is fixedly installed on the front end of the sleeve, and a filter plate is fixedly installed on the back end of the sleeve. A filter element is fixedly installed on the front face of the filter plate, and the filter element is located within the sleeve. The auxiliary filtration mechanism includes a square groove located on the outer side of the air outlet, with a connecting end retained on the groove. A movable square sleeve is fixedly connected to the back end of the end plate, and the movable square sleeve has a movable groove. This device can provide auxiliary filtration when the filter assembly becomes clogged.

Description

Technical Field

[0001] This invention relates to the field of ventilation and filtration equipment technology, and more specifically to a filtration and purification device for a smart civil defense ventilation system. Background Technology

[0002] When a smart civil defense ventilation system is ventilating, it needs to use a filtration and purification device to ensure the cleanliness of the air in the space. However, the existing filtration and purification devices still have the following shortcomings.

[0003] First, under existing technology, after long-term use, the filter element of the filtration and purification device often accumulates a large amount of dust and impurity particles, which will eventually cause the filter element to become clogged. Before the staff replaces the filter element, the air purification performance of the filtration and purification device will be significantly reduced.

[0004] Secondly, under the existing technology, the filter purification device needs to be replaced by staff after the filter element becomes clogged. Before the staff replaces the filter element, the device does not have an automatic and convenient way to clean the filter element.

[0005] Therefore, in order to solve the above problems, there is a need to provide a filtration and purification device for intelligent civil defense ventilation systems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a filtration and purification device for a smart civil defense ventilation system to solve the problems existing in the background art.

[0007] The present invention provides the following technical solution: a filtration and purification device for a smart civil defense ventilation system, comprising a ventilation duct, a filter assembly on the ventilation duct, and an auxiliary filtration mechanism on the filter assembly;

[0008] The filter assembly includes an installation sleeve connected to a ventilation duct. The installation sleeve has evenly distributed air outlet holes. An end plate is installed on the outer side of each air outlet hole. A sleeve is fixedly sleeved on the end plate. A filter plate is fixedly installed on the back end of the sleeve. A filter element is fixedly installed on the front end face of the filter plate.

[0009] The auxiliary filtration mechanism includes a square groove. A movable square sleeve is fixedly connected to the back end of the end plate. The movable square sleeve is movably fitted into the square groove. Telescopic rods are connected to the four corners of the end plate. Limiting blocks are fixedly installed at the telescopic ends of the telescopic rods. Mounting holes aligned with the telescopic rods are opened on the outer side of the air outlet. Limiting blocks are fixedly installed at the bottom of these mounting holes. A tension spring is sleeved on the telescopic end of the telescopic rod. The two ends of the tension spring are fixedly connected to the base end of the telescopic rod shaft and the limiting block, respectively. Mounting grooves are opened on both sides of the movable square sleeve. Filter layers are fixedly installed in the mounting grooves on both sides of the movable square sleeve.

[0010] The auxiliary filtration mechanism provides auxiliary filtration when the filtration component becomes clogged.

[0011] Furthermore, each of the air outlets is fixedly equipped with a circular grille, the front end of the sleeve is fixedly equipped with a front grille, and the filter element is located in the sleeve.

[0012] Furthermore, the square groove is formed on the outside of the air outlet, the square groove has a connecting end, the movable square sleeve has a movable groove, the movable groove is movably fitted with the connecting end, and the back end of the movable square sleeve is provided with a limiting frame.

[0013] Furthermore, the movable slot is also provided with a corrugated telescopic plate. The front and rear ends of the corrugated telescopic plate are respectively installed on the movable square sleeve and the mounting sleeve. The movable square sleeve is also provided with sliding grooves on both sides. An air chamber is fixedly installed on the outer side of the mounting sleeve. The air chambers are symmetrically installed on both sides of the movable square sleeve. A square plate is fixedly installed at the front end of the air chamber. A sliding protrusion is provided on the inner side of the square plate. The sliding protrusion is movably sleeved in the sliding groove. A connecting groove is provided at the front end of the square plate. A sleeve is fixedly installed at the front end of the end plate. An inner hole is provided in the sleeve. Through grooves are provided on both sides of the sleeve. A corrugated telescopic chamber is fixedly connected to the outer end of the through groove. The end of the corrugated telescopic chamber is fixedly connected to the connecting groove.

[0014] Furthermore, when the movable sleeve extends outward from the mounting sleeve, the filter layer leaks outward from the mounting sleeve and is located in the air chamber.

[0015] Furthermore, a curved plate is installed on the through groove, and a blowpipe is fixedly connected to the curved plate, with the end of the blowpipe pointing towards the filter element.

[0016] Furthermore, an air pipe is connected to the outside of the casing.

[0017] The technical effects and advantages of this invention are as follows:

[0018] 1. This invention includes an auxiliary filtration mechanism. When the filter element in the sleeve becomes clogged with dust and other impurities due to long-term air filtration, the airflow pressure increases, pushing the filter element, along with the end plate and sleeve, outward. The filter layer leaks outward from the mounting sleeve and is located in the air chamber. The airflow filters out from the filter layer on both sides and flows into the inner hole through the corrugated telescopic chamber. When the operator replaces the filter element, the flow pressure decreases. Under the reset action of the tension spring, the movable sleeve along with the filter layer retracts back into the interior of the mounting sleeve. This device achieves an auxiliary filtration effect when the filter element is clogged and before the operator replaces it.

[0019] 2. The present invention is provided with a blowpipe and a curved plate installed on the through groove. The blowpipe is fixedly connected to the curved plate. The airflow is blown out through the blowpipe, and the blown airflow back-blown and cleaned the filter element. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the filter assembly structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the auxiliary filtration mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the inner structure of the mounting sleeve of the present invention.

[0024] Figure 5 This is a schematic diagram of the air chamber structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the blowpipe structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the trachea structure of the present invention.

[0027] The attached figures are labeled as follows: 1. Ventilation duct; 2. Filter assembly; 201. Mounting sleeve; 202. Air outlet; 203. Circular grille; 204. End plate; 205. Sleeve; 206. Front grille; 207. Filter plate; 208. Filter element; 3. Auxiliary filtration mechanism; 301. Square groove; 302. Connecting end; 303. Movable square sleeve; 304. Movable groove; 305. Limiting frame; 306. Telescopic rod; 307. Limiting block; 308. Tension spring; 309. Filter layer; 310. Corrugated telescopic plate; 311. Slide groove; 312. Air chamber; 313. Square plate; 314. Slide protrusion; 315. Connecting groove; 316. Sleeve chamber; 317. Inner hole; 318. Through groove; 319. Corrugated telescopic chamber; 320. Curved plate; 321. Blowpipe; 322. Air pipe. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The intelligent civil defense ventilation system filtration and purification device involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1 The present invention provides a filtration and purification device for a smart civil defense ventilation system, including a ventilation duct 1, a filter assembly 2 on the ventilation duct 1, and an auxiliary filtration mechanism 3 on the filter assembly 2;

[0030] When in use, the ventilation duct 1 is connected to the ventilation system, and the auxiliary filtration mechanism 3 can perform auxiliary filtration when the filter component 2 is blocked.

[0031] Reference Figure 2 The filter assembly 2 includes an installation sleeve 201, which is connected to the ventilation duct 1. The installation sleeve 201 has evenly distributed air outlet holes 202. Each air outlet hole 202 is fixedly installed with a circular grille 203. Each air outlet hole 202 has an end plate 204 installed on its outer side. The end plate 204 is fixedly sleeved with a sleeve 205. The front end of the sleeve 205 is fixedly installed with a front grille 206. The back end of the sleeve 205 is fixedly installed with a filter plate 207. The front end face of the filter plate 207 is fixedly installed with a filter element 208, which is located in the sleeve 205.

[0032] When the device is in use, the ventilation system draws air from the outside through the ventilation duct 1 and then filters and purifies it at the filter assembly 2. The air is then filtered sequentially through the filter plate 207 and the filter element 208 before being discharged from the front grille 206. The air purification function of the device is achieved in this way.

[0033] Reference Figures 3-5The auxiliary filtration mechanism 3 includes a square groove 301, which is located outside the air outlet 202. A connecting end 302 is provided on the square groove 301. A movable square sleeve 303 is fixedly connected to the back end of the end plate 204. A movable groove 304 is provided on the movable square sleeve 303, which is movably fitted into the square groove 301. The movable groove 304 movably engages with the connecting end 302. A limiting frame 305 is provided on the back end of the movable square sleeve 303. Telescopic rods 306 are connected to each of the four corners of the end plate 204. The telescopic rod 306 has a limiting block 307 fixedly installed at its telescopic end. The outer side of the air outlet 202 has mounting holes aligned with the telescopic rod 306. The limiting block 307 is fixedly installed at the bottom of these mounting holes. A tension spring 308 is sleeved on the telescopic end of the telescopic rod 306. Both ends of the tension spring 308 are fixedly connected to the shaft base of the telescopic rod 306 and the limiting block 307, respectively. Mounting grooves are provided on both sides of the movable square sleeve 303, and filter layers 309 are fixedly installed in both mounting grooves. The movable groove 304 is also provided with a corrugated telescopic plate 310. The front and rear ends of the corrugated telescopic plate 310 are respectively installed on the movable square sleeve 303 and the mounting sleeve 201. The movable square sleeve 303 is also provided with sliding grooves 311 on both sides. An air chamber 312 is fixedly installed on the outer side of the mounting sleeve 201. The air chambers 312 are symmetrically installed on both sides of the movable square sleeve 303. A square plate 313 is fixedly installed at the front end of the air chamber 312. A sliding protrusion 314 is provided on the inner side of the square plate 313. The sliding protrusion 314 is movably sleeved on the sliding groove 311. In section 11, the front end of the square plate 313 is provided with a connecting groove 315, the front end of the end plate 204 is fixedly installed with a sleeve 316, the sleeve 316 is provided with an inner hole 317, and both sides of the sleeve 316 are provided with through grooves 318. The outer end of the through groove 318 is fixedly connected to a corrugated telescopic chamber 319, and the end of the corrugated telescopic chamber 319 is fixedly connected to the connecting groove 315. When the movable square sleeve 303 extends outward from the mounting sleeve 201, the filter layer 309 leaks outward from the mounting sleeve 201 and is located in the air chamber 312.

[0034] When the device is in use, after the filter element 208 in the sleeve 205 is clogged by dust and other impurities due to long-term air filtration, the airflow pressure increases, and the airflow pushes the filter element 208, along with the end plate 204 and the sleeve 205, outward. The filter layer 309 leaks outward from the mounting sleeve 201 and is located in the air chamber 312. The airflow filters out from the filter layer 309 on both sides and flows into the inner hole 317 through the corrugated telescopic chamber 319. When the operator replaces the filter element 208, the flow pressure decreases, and under the reset action of the tension spring 308, the movable sleeve 303, along with the filter layer 309, retracts back into the interior of the mounting sleeve 201. The device achieves the auxiliary filtration effect when the filter element 208 is clogged and before the operator replaces it in the above manner.

[0035] Reference Figure 6 A curved plate 320 is installed on the through groove 318, and a blowpipe 321 is fixedly connected to the curved plate 320. The end of the blowpipe 321 points to the filter element 208.

[0036] When the device is in use, after the filter element 208 is clogged by dust and other impurities due to long-term air filtration, the airflow pressure on it increases. The airflow pushes the filter element 208, along with the end plate 204 and the sleeve 205, outward. The airflow is filtered out from the filter layer 309 on both sides and flows through the corrugated telescopic chamber 319 into the inner hole 317. Finally, it is blown out through the blowpipe 321. The blown airflow back-blown the filter element 208, so that the filter element 208 can be back-blown and cleaned before the staff replaces it.

[0037] Reference Figure 7 The outer side of the housing 316 is connected to an air pipe 322, which facilitates the connection of pipes to various civil defense spaces.

[0038] The working principle of this invention is as follows: When the filter element 208 in the sleeve 205 is clogged with dust and other impurities due to long-term air filtration, the airflow pressure increases, and the airflow pushes the filter element 208, along with the end plate 204 and the sleeve 205, outward. The filter layer 309 leaks outward from the mounting sleeve 201 and is located in the air chamber 312. The airflow filters out from the filter layer 309 on both sides and flows through the corrugated telescopic chamber 319 into the inner hole 317. When the operator completes the operation... After the filter element 208 is replaced, the flow pressure decreases. Under the reset action of the tension spring 308, the movable sleeve 303, together with the filter layer 309, retracts back into the installation sleeve 201. This device achieves the auxiliary filtration effect before the filter element 208 is replaced by the staff after it is clogged. A curved plate 320 is installed on the through groove 318, and a blowpipe 321 is fixedly connected to the curved plate 320. The airflow is blown out through the blowpipe 321, and the blown airflow back-blown and cleans the filter element 208.

[0039] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0040] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0041] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filtering and purifying device for a smart civil air defense ventilation system, comprising a ventilation duct (1), wherein a filtering assembly (2) is arranged on the ventilation duct (1), characterized in that: The filter assembly (2) is further provided with an auxiliary filtering mechanism (3); The filter assembly (2) comprises a mounting sleeve (201) connected with the ventilation duct (1), the mounting sleeve (201) is provided with evenly distributed air outlet holes (202), the outer side of each air outlet hole (202) is provided with an end plate (204), the end plate (204) is fixedly sleeved with a sleeve (205), the back end of the sleeve (205) is fixedly provided with a filter plate (207), and the front end surface of the filter plate (207) is fixedly provided with a filter core (208); The auxiliary filtering mechanism (3) comprises a square groove (301), the back end of the end plate (204) is fixedly connected with a movable square sleeve (303), the movable square sleeve (303) is movably sleeved in the square groove (301), the four corners of the end plate (204) are connected with telescopic rods (306), the telescopic ends of the telescopic rods (306) are fixedly provided with limiting blocks (307), the outer side of the air outlet hole (202) is provided with mounting holes aligned with the telescopic rods (306), respectively, the limiting blocks (307) are fixedly installed at the bottom of the mounting holes, respectively, the telescopic ends of the telescopic rods (306) are sleeved with tension springs (308), the two ends of the tension spring (308) are fixedly connected with the shaft body base end of the telescopic rod (306) and the limiting block (307), respectively, the two sides of the movable square sleeve (303) are provided with mounting grooves, and the two sides of the movable square sleeve (303) are fixedly provided with filter layers (309) in the mounting grooves. The auxiliary filtering mechanism (3) assists in filtering when the filter assembly (2) is blocked.

2. The filtering and purifying device for a smart civil air defense ventilation system according to claim 1, characterized in that: Each air outlet hole (202) is fixedly provided with a circular grid (203), the front end of the sleeve (205) is fixedly provided with a front grid (206), and the filter core (208) is located in the sleeve (205).

3. The filtering and purifying device for a smart civil air defense ventilation system according to claim 1, characterized in that: The square groove (301) is arranged on the outer side of the air outlet hole (202), the square groove (301) is provided with a connecting end (302), the movable square sleeve (303) is provided with a movable groove (304), the movable groove (304) is movably sleeved with the connecting end (302), and the back end of the movable square sleeve (303) is provided with a limiting frame (305).

4. The filtering and purifying device for a smart civil air defense ventilation system according to claim 3, characterized in that: The upper of the movable slot (304) is further provided with a corrugated expansion plate (310), the front and rear ends of the corrugated expansion plate (310) are respectively installed on the movable square sleeve (303) and the mounting joint sleeve (201), both sides of the movable square sleeve (303) are further provided with a sliding groove (311), the outer side of the mounting joint sleeve (201) is fixedly installed with an air chamber (312), the air chamber (312) is symmetrically installed on both sides of the movable square sleeve (303), the front end of the air chamber (312) is fixedly installed with a square plate (313), the inner side of the square plate (313) is provided with a sliding convex (314), the sliding convex (314) is movably sleeved in the sliding groove (311), the front end of the square plate (313) is provided with a connecting groove (315), the front end of the end plate (204) is fixedly installed with a sleeve chamber (316), the sleeve chamber (316) is provided with an inner hole (317), both sides of the sleeve chamber (316) are provided with a through groove (318), the outer end of the through groove (318) is fixedly connected with a corrugated expansion chamber (319), the end of the corrugated expansion chamber (319) is fixedly connected with the connecting groove (315).

5. The filtering and purifying device for the intelligent civil air defense ventilation system according to claim 4, characterized in that: When the movable square sleeve (303) extends outward from the mounting joint sleeve (201), the filter layer (309) leaks outward from the mounting joint sleeve (201) and is located in the air chamber (312).

6. The filtering and purifying device for a smart civil air defense ventilation system according to claim 5, characterized in that: The through groove (318) is installed with a curved plate (320), the curved plate (320) is fixedly connected with a blowing pipe (321), the pipe end of the blowing pipe (321) points to the filter core (208).

7. The filtering and purifying device for a smart civil air defense ventilation system according to claim 6, characterized in that: The outer side of the sleeve chamber (316) is connected with an air pipe (322).

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