Air purification and disinfection device for air conditioner ventilation system

Abstract

The invention discloses an air purification and disinfection device for an air conditioner ventilation system. The air purification and disinfection device comprises a purification and disinfection box, an air outlet pipe is installed at the top end of the purification and disinfection box, air inlet pipes are installed at the bottom ends of the two sides of the purification and disinfection box, a fixing plate is installed in the purification and disinfection box, and electric push rods are installed on the two sides of the top end of the fixing plate. A position adjusting mechanism and a direction adjusting mechanism which are matched with each other are arranged in the purification and disinfection box, in the using process, a second motor is started to drive a second rotating shaft to rotate, the second rotating shaft drives a third hinge rod to rotate, the inner ends of a fourth hinge rod and a fifth hinge rod are driven to swing through the hinge action, and a connecting plate and a movable plate are driven to ascend and descend; the connecting plate drives the purifying and disinfecting frame to lift, so that internal quartz sand and activated carbon are shaken, the bottom purifying and disinfecting material is prevented from being excessively used, and the using effect is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to an air purification and disinfection device for an air conditioning and ventilation system. Background Art

[0002] At present, all residential buildings, hotels, shopping malls, schools, hospitals, office places, factories and mines, social organizations, etc. mostly use air conditioners to cope with summer and winter. In the snowy winter, when people turn on the air conditioner to enjoy the warm air, there will be particulate matter, allergens and other polluted air in the warm air. As people's requirements for living environment increase, the requirements for indoor air quality are also gradually increasing. At this time, people need to purify the air;

[0003] A hospital building ventilation and air conditioning circulation purification device in the publication number CN 114294749 B includes a solid gas washing device and an air filter device connected to each other, the input end of the solid gas washing device is connected to the exhaust port of the hospital building ventilation area, the output end of the air filter device is connected to the air inlet of the hospital building ventilation area, the solid gas washing device is used to purify the primary exhaust air through solid particles, and output the secondary exhaust air to the air filter device, the air filter device is used to filter the secondary exhaust air, and re-transmit the clean air to the ventilation area of ​​the hospital building. The present invention utilizes the solid particle adsorption and fluidized bed principle to disinfect and filter the exhaust air of the hospital building, and then re-supply the hospital building for ventilation, thereby reducing energy consumption and preventing the virus inside the hospital building from spreading to the outside. When the above-mentioned prior art is used, the technical solution adopts the solid particle adsorption method for purification and disinfection, but according to the gas entry direction, the part of the solid particles in contact with the gas will be in a large number of use states, which is not easy to be uniformized, and has a certain optimization space, so corresponding improvements can be made;

[0004] A ship purification and disinfection air conditioning and ventilation device in the publication number CN 115892428 A. Its technical scheme includes: an installation box, an installation frame and a flow equalizer, a fixed box is installed at the front end of the installation box, a dust plate is installed at the front end of the fixed box, a dust strip is fixedly connected to the inner side of the dust plate, and a disinfection cotton is fixedly installed inside the fixed box. The present invention is provided with disinfection cotton, air purification cotton, sealing pad and fixed box, and the bacteria in the air can be conveniently disinfected by disinfection cotton, so that the air can be conveniently processed, and the large particles of dust and impurity suspended particles in the air can be initially filtered out. At the same time, the air purification cotton can be conveniently used to purify the bacteria after disinfection, so that the air quality of each cabin of the ship meets the standard, so that it can be more convenient to use, and the operation is convenient and fast. When the above-mentioned prior art is used, the cleaning of the filter component needs to be pulled out later for cleaning and replacement. In order to further improve the convenience of use, corresponding improvements can be made. Summary of the invention

[0005] The object of the present invention is to provide an air purification and disinfection device for an air conditioning and ventilation system to solve the problem of inconvenience in turning over and cleaning mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an air purification and disinfection device for an air conditioning and ventilation system, comprising a purification and disinfection box, an air outlet pipe is installed at the top of the purification and disinfection box, air inlet pipes are installed at the bottom ends of both sides of the purification and disinfection box, a fixed plate is installed inside the purification and disinfection box, and electric push rods are installed on both sides of the top of the fixed plate, a filter frame is installed at the bottom end of the fixed plate, and a dust sweeping mechanism is provided at the bottom end of the fixed plate outside the filter frame, hoses are installed on both sides of the top of the fixed plate, and bellows are installed at the top of the hose, a purification and disinfection frame is installed at the top of the bellows, and activated carbon purification layers and quartz sand disinfection layers are respectively provided at both ends of the purification and disinfection frame. A turning mechanism is provided at the top of the box, and a direction adjustment mechanism is provided on the outside of the hose. A positioning mechanism is provided inside the purification and disinfection box, and the positioning mechanism includes a mounting frame, and the mounting frame is installed at one end inside the purification and disinfection box, a second motor is installed inside the mounting frame, and a second rotating shaft is installed on the outside of the second motor, a third hinged rod is installed on the outside of the second rotating shaft, and a fifth hinged rod is installed on the outside of the third hinged rod, a fourth hinged rod is installed at the top of the fifth hinged rod, and a connecting plate is installed at the top of the fourth hinged rod, the top of the connecting plate is connected to the bottom end of the purification and disinfection frame, a movable plate is installed at one end inside the purification and disinfection box, and the movable plates are connected to the bottom end of the fifth hinged rod.

[0007] Preferably, the dust-sweeping mechanism includes a connecting ring, and the connecting ring is installed at the bottom end of the electric push rod, a rotating ring is installed on one side inside the connecting ring, and the dust-sweeping ring is installed at the bottom end of the rotating ring, an external gear is installed on the inner side of the rotating ring, a first motor is installed at the top end of the connecting ring, and a first rotating shaft is installed at the bottom end of the first motor, an internal gear is installed on the outer side of the first rotating shaft, and the internal gear is meshingly connected with the external gear.

[0008] Preferably, the height of the rotating ring matches the inner diameter height of the connecting ring, and the cross-section of the rotating ring is arranged in a ring shape.

[0009] Preferably, the turning mechanism includes a connecting rod, and the connecting rod is installed at the top of the purification and disinfection box, sealing boxes are installed at both ends of the connecting rod, and dual-axis motors are installed inside the sealing boxes, connecting shafts are installed on both sides of the sealing box, and flip plates are evenly installed on the outside of the connecting shafts.

[0010] Preferably, the cross-sections of the flaps are all arranged in an arc shape, and the flaps are arranged at equal intervals on the outside of the connecting shaft.

[0011] Preferably, the direction adjustment mechanism includes a fixing frame, and the fixing frame is installed on the top of the fixing plate, the first hinged rod is installed inside the fixing frame, and a fixing ring is installed on the outside of the first hinged rod, the fixing ring is connected to the hose, and a second hinged rod is installed on the outside of the first hinged rod, and the second hinged rod is connected to the movable plate.

[0012] Preferably, a limiting block is installed at one end of the movable plate, a limiting groove is arranged at one end of the purification and disinfection box near the limiting block, and the limiting groove is connected to the limiting block.

[0013] Preferably, the size of the limiting block matches the size of the limiting groove, and the cross-sections of the limiting block and the limiting groove are both arranged to be trapezoidal.

[0014] Preferably, guide blocks are installed on both sides of the purification and disinfection frame, guide grooves are arranged on both sides of the interior of the purification and disinfection box, and the guide grooves are connected to the guide blocks.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the air purification and disinfection device for the air conditioning and ventilation system can shake the internal quartz sand and activated carbon while slowing down the air flow rate by setting a mutually coordinated position adjustment mechanism and direction adjustment mechanism, so as to avoid excessive use of the bottom purification and disinfection materials while making them more fully contacted with the materials; by setting a material turning mechanism, the upper and lower layers of materials can be turned alternately to further improve the air treatment effect; by setting a dust sweeping mechanism, the time and labor of manual cleaning can be reduced, thereby improving work efficiency;

[0016] 1. A positioning mechanism and a direction adjustment mechanism that cooperate with each other are set in the purification and disinfection box. During use, the second motor is started to drive the second rotating shaft to rotate, and the second rotating shaft drives the third hinged rod to rotate, that is, the inner ends of the fourth hinged rod and the fifth hinged rod are driven to swing through the hinged action, that is, the connecting plate and the movable plate are driven to lift and lower. The connecting plate drives the purification and disinfection frame to lift and lower, thereby shaking the internal quartz sand and activated carbon to avoid excessive use of the purification and disinfection materials at the bottom and prolonging its use effect. Further, the movable plate drives the inner side of the second hinged rod to move while lifting and lowering. The first hinged rod is limited by the fixed frame and the push-pull action of the second hinged rod, which drives the fixed ring and its internal hose to move left and right, that is, the push-pull action of the hose can change the path of the flowing air in the hose to slow down the air flow rate, so that it can be more fully in contact with the materials in the purification and disinfection frame, so as to improve its purification and disinfection effect.

[0017] 2. On the basis of the use of the above-mentioned direction adjustment mechanism, a turning mechanism is set up, and the dual-axis motor is started while the purification and disinfection frame is lifted and lowered. The dual-axis motor drives the connecting shaft to rotate, that is, the turning plate is driven to turn over the materials inside the activated carbon purification layer and the quartz sand disinfection layer synchronously, and the purification and disinfection frame is lifted and lowered synchronously, that is, the turning plate can turn over the upper and lower layers of materials alternately, so as to further improve its air treatment effect and enhance material utilization;

[0018] 3. A dust sweeping mechanism is arranged on the outside of the filter frame. When the filter frame needs to be cleaned, the electric push rod and the first motor are started. The first motor drives the inner gear to rotate. The outer gear drives the rotating ring to rotate under the meshing action. The rotating ring drives the dust sweeping ring to rotate synchronously. The electric push rod drives the rotating dust sweeping ring to rise and fall along the outside of the filter frame to realize the dust cleaning operation of the filter frame, reduce the time and labor of manual cleaning, improve work efficiency, and the swept dust falls into the external collection box through the inclined surface at the bottom of the purification and disinfection box for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of a top-down cross-sectional structure of the installation frame of the present invention;

[0022] Figure 3 It is a schematic diagram of the front cross-sectional structure of the material turning mechanism of the present invention;

[0023] Figure 4 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0024] Figure 5 It is a schematic diagram of a top-view cross-sectional structure of a connecting ring of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the material turning mechanism of the present invention.

[0027] Explanation of reference numerals in the figure: 1. Purification and disinfection box; 2. Purification and disinfection frame; 3. Guide groove; 4. Guide block; 5. Bellows; 6. Hose; 7. Adjustment mechanism; 701. Fixing frame; 702. Fixing ring; 703. First hinged rod; 704. Second hinged rod; 8. Electric push rod; 9. Fixing plate; 10. Dust sweeping mechanism; 1001. Dust sweeping ring; 1002. External gear; 1003. First rotating shaft; 1004. Connecting ring; 1005. Rotating ring; 1006. Internal gear; 1007. First motor; 11. Filter frame; 12 , air inlet duct; 13, adjustment mechanism; 1301, installation frame; 1302, second motor; 1303, second rotating shaft; 1304, connecting plate; 1305, third hinge rod; 1306, fourth hinge rod; 1307, fifth hinge rod; 1308, movable plate; 14, air outlet duct; 15, turning mechanism; 1501, connecting rod; 1502, turning plate; 1503, connecting shaft; 1504, dual-axis motor; 1505, sealing box; 16, activated carbon purification layer; 17, quartz sand disinfection layer; 18, limit block; 19, limit groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] See also Figure 1-7The present invention provides an air purification and disinfection device for an air conditioning and ventilation system, comprising a purification and disinfection box 1, an air outlet duct 14 is installed at the top of the purification and disinfection box 1, air inlet ducts 12 are installed at the bottom ends of both sides of the purification and disinfection box 1, a fixing plate 9 is installed inside the purification and disinfection box 1, and electric push rods 8 are installed on both sides of the top of the fixing plate 9, a filter frame 11 is installed at the bottom end of the fixing plate 9, and a dust sweeping mechanism 10 is provided at the bottom end of the fixing plate 9 outside the filter frame 11, and the dust sweeping mechanism 10 includes a connecting ring 1004, and the connecting ring 1004 is installed at the bottom end of the electric push rod 8, and the connecting ring 100 A rotating ring 1005 is installed on one side of the interior, and a dust sweeping ring 1001 is installed at the bottom end of the rotating ring 1005, an outer gear 1002 is installed on the inner side of the rotating ring 1005, a first motor 1007 is installed on the top end of the connecting ring 1004, and a first rotating shaft 1003 is installed at the bottom end of the first motor 1007, an inner gear 1006 is installed on the outer side of the first rotating shaft 1003, and the inner gear 1006 is meshed and connected with the outer gear 1002, the height of the rotating ring 1005 matches the inner diameter height of the connecting ring 1004, and the cross-section of the rotating ring 1005 is arranged in a ring shape.

[0031] In the present embodiment, during use, multi-directional air intake is performed through the air inlet pipes 12 on both sides of the purification and disinfection box 1, and impurities in the air are blocked on the outside of the filter frame 11. When the filter frame 11 needs to be cleaned, the electric push rod 8 and the first motor 1007 are started, and the first motor 1007 drives the inner gear 1006 to rotate. Under the meshing action, the outer gear 1002 drives the rotating ring 1005 to rotate, and the rotating ring 1005 synchronously drives the sweeping ring 1001 to rotate. The electric push rod 8 drives the rotating sweeping ring 1001 to rise and fall along the outside of the filter frame 11 to realize the cleaning operation of the filter frame 11, reduce the time and labor of manual cleaning, and improve work efficiency. The swept dust falls into the external collection box through the inclined surface at the bottom of the purification and disinfection box 1 for collection.

[0032] Embodiment 2

[0033] The present embodiment also includes: a hose 6 is installed on both sides of the top of the fixing plate 9, and a bellows 5 is installed on the top of the hose 6, a purification and disinfection frame 2 is installed on the top of the bellows 5, and guide blocks 4 are installed on both sides of the purification and disinfection frame 2, and guide grooves 3 are provided on both sides of the purification and disinfection box 1, and the guide grooves 3 are connected to the guide blocks 4, and activated carbon purification layers 16 and quartz sand disinfection layers 17 are respectively provided at both ends of the purification and disinfection frame 2, and a turning mechanism 15 is provided at the top of the purification and disinfection box 1, and the turning mechanism 15 includes a connecting rod 1501, and the connecting rod 1501 is installed at the top of the purification and disinfection box 1, and sealing boxes 1505 are installed at both ends of the connecting rod 1501, and the inside of the sealing box 1505 is installed with a double-axis electric Machine 1504, connecting shafts 1503 are installed on both sides of the sealing box 1505, and flaps 1502 are evenly installed on the outer sides of the connecting shafts 1503, the cross-sections of the flaps 1502 are arranged in an arc shape, and the flaps 1502 are evenly arranged on the outer sides of the connecting shafts 1503. An adjustment mechanism 7 is arranged on the outer side of the hose 6, and the adjustment mechanism 7 includes a fixing frame 701, and the fixing frame 701 is installed on the top of the fixing plate 9, a first hinged rod 703 is installed inside the fixing frame 701, and a fixing ring 702 is installed on the outer side of the first hinged rod 703, and the fixing ring 702 is connected to the hose 6, a second hinged rod 704 is installed on the outer side of the first hinged rod 703, and the second hinged rod 704 is connected to the movable plate 1308.

[0034] In this embodiment, when in use, air is filtered through the filter frame 11 and then enters the hose 6. At this time, the movable plate 1308 is lifted and lowered and drives the inner side of the second hinge rod 704 to move. The first hinge rod 703 is limited by the fixing frame 701 and the push-pull action of the second hinge rod 704, which drives the fixing ring 702 and the hose 6 inside it to move left and right. That is, the push-pull action of the hose 6 can change the path of the flowing air in the hose 6 to slow down the air flow rate so that it can be more fully in contact with the material in the purification and disinfection frame 2. In order to improve the purification and disinfection effect, based on the use of the above-mentioned adjustment mechanism 7, a turning mechanism 15 is set, and the dual-axis motor 1504 is started while the purification and disinfection frame 2 is raised and lowered. The dual-axis motor 1504 drives the connecting shaft 1503 to rotate, that is, the flap 1502 is driven synchronously to turn over the materials inside the activated carbon purification layer 16 and the quartz sand disinfection layer 17, and the purification and disinfection frame 2 is raised and lowered synchronously, that is, the flap 1502 can turn over the upper and lower layers of materials alternately, so as to further improve its air treatment effect and enhance material utilization.

[0035] Embodiment 3

[0036] The present embodiment also includes: a positioning mechanism 13 is provided inside the purification and disinfection box 1, and the positioning mechanism 13 includes a mounting frame 1301, and the mounting frame 1301 is mounted at one end inside the purification and disinfection box 1, a second motor 1302 is mounted inside the mounting frame 1301, and a second rotating shaft 1303 is mounted on the outside of the second motor 1302, a third hinged rod 1305 is mounted on the outside of the second rotating shaft 1303, and a fifth hinged rod 1307 is mounted on the outside of the third hinged rod 1305, and the fifth hinged rod 1307 is mounted on the outside of the fifth hinged rod 1307. A fourth hinged rod 1306 is installed at the top, and a connecting plate 1304 is installed at the top of the fourth hinged rod 1306. The top of the connecting plate 1304 is connected to the bottom end of the purification and disinfection frame 2. A movable plate 1308 is installed at one end inside the purification and disinfection box 1. A limiting block 18 is installed at one end of the movable plate 1308. A limiting groove 19 is provided at one end of the purification and disinfection box 1 close to the limiting block 18, and the limiting groove 19 is connected to the limiting block 18, and the movable plates 1308 are connected to the bottom end of the fifth hinged rod 1307.

[0037] In this embodiment, when in use, the second motor 1302 is started to drive the second rotating shaft 1303 to rotate. The second rotating shaft 1303 drives the third hinged rod 1305 to rotate, that is, the inner ends of the fourth hinged rod 1306 and the fifth hinged rod 1307 are driven to swing through the hinged action, that is, the connecting plate 1304 and the movable plate 1308 are driven to rise and fall, and the connecting plate 1304 drives the purification and disinfection frame 2 to rise and fall, thereby shaking the internal quartz sand and activated carbon, avoiding excessive use of the purification and disinfection materials at the bottom and prolonging its use effect.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air purification and disinfection device for an air conditioning and ventilation system, comprising a purification and disinfection box (1), characterized in that: The top of the purification and disinfection box (1) is provided with an air outlet pipe (14), the bottoms of both sides of the purification and disinfection box (1) are provided with air inlet pipes (12), a fixing plate (9) is provided inside the purification and disinfection box (1), and both sides of the top of the fixing plate (9) are provided with electric push rods (8), a filter frame (11) is provided at the bottom of the fixing plate (9), and a dust sweeping mechanism (10) is provided at the bottom of the fixing plate (9) outside the filter frame (11), and the top of the fixing plate (9) is provided with a dust sweeping mechanism (10). A hose (6) is installed on both sides of the end, and a bellows (5) is installed on the top of the hose (6), a purification and disinfection frame (2) is installed on the top of the bellows (5), and an activated carbon purification layer (16) and a quartz sand disinfection layer (17) are respectively arranged at the two ends of the purification and disinfection frame (2), a turning mechanism (15) is arranged at the top of the purification and disinfection box (1), and a direction adjustment mechanism (7) is arranged on the outside of the hose (6), and the purification and disinfection box (1) is arranged inside A positioning mechanism (13) is provided, and the positioning mechanism (13) includes a mounting frame (1301), and the mounting frame (1301) is mounted at one end inside the purification and disinfection box (1), a second motor (1302) is mounted inside the mounting frame (1301), and a second rotating shaft (1303) is mounted on the outside of the second motor (1302), a third hinged rod (1305) is mounted on the outside of the second rotating shaft (1303), and a third hinged rod (1305) is mounted on the outside of the third hinged rod (1305). A fifth hinged rod (1307) is installed, a fourth hinged rod (1306) is installed at the top end of the fifth hinged rod (1307), and a connecting plate (1304) is installed at the top end of the fourth hinged rod (1306), the top end of the connecting plate (1304) is connected to the bottom end of the purification and disinfection frame (2), and a movable plate (1308) is installed at one end inside the purification and disinfection box (1), and the movable plates (1308) are connected to the bottom end of the fifth hinged rod (1307).

2. The air purification and disinfection device for an air conditioning and ventilation system according to claim 1, characterized in that: The dust sweeping mechanism (10) comprises a connecting ring (1004), and the connecting ring (1004) is mounted on the bottom end of the electric push rod (8); a rotating ring (1005) is mounted on one side inside the connecting ring (1004), and a dust sweeping ring (1001) is mounted on the bottom end of the rotating ring (1005); an external gear (1002) is mounted on the inner side of the rotating ring (1005); a first motor (1007) is mounted on the top end of the connecting ring (1004), and a first rotating shaft (1003) is mounted on the bottom end of the first motor (1007); an internal gear (1006) is mounted on the outer side of the first rotating shaft (1003), and the internal gear (1006) is meshingly connected with the external gear (1002).

3. The air purification and disinfection device for an air conditioning and ventilation system according to claim 2, characterized in that: The height of the rotating ring (1005) matches the inner diameter height of the connecting ring (1004), and the cross-section of the rotating ring (1005) is arranged in a ring shape.

4. The air purification and disinfection device for an air conditioning and ventilation system according to claim 1, characterized in that: The material turning mechanism (15) comprises a connecting rod (1501), and the connecting rod (1501) is installed at the top end inside the purification and disinfection box (1), both ends of the connecting rod (1501) are installed with sealing boxes (1505), and the inside of the sealing box (1505) is installed with a double-axis motor (1504), both sides of the sealing box (1505) are installed with connecting shafts (1503), and the outer side of the connecting shaft (1503) is evenly installed with a turning plate (1502).

5. The air purification and disinfection device for an air conditioning and ventilation system according to claim 4, characterized in that: The cross-sections of the flaps (1502) are all arranged in an arc shape, and the flaps (1502) are arranged at equal intervals on the outside of the connecting shaft (1503).

6. The air purification and disinfection device for an air conditioning and ventilation system according to claim 1, characterized in that: The direction adjustment mechanism (7) includes a fixing frame (701), and the fixing frame (701) is installed on the top of the fixing plate (9), the first hinged rod (703) is installed inside the fixing frame (701), and the outer side of the first hinged rod (703) is installed with a fixing ring (702), and the fixing ring (702) is connected to the hose (6), and the outer side of the first hinged rod (703) is installed with a second hinged rod (704), and the second hinged rod (704) is connected to the movable plate (1308).

7. The air purification and disinfection device for an air conditioning and ventilation system according to claim 1, characterized in that: A limiting block (18) is installed at one end of the movable plate (1308), and a limiting groove (19) is arranged at one end of the purification and disinfection box (1) near the limiting block (18), and the limiting groove (19) is connected to the limiting block (18).

8. The air purification and disinfection device for an air conditioning and ventilation system according to claim 7, characterized in that: The size of the limiting block (18) matches the size of the limiting groove (19), and the cross-sections of the limiting block (18) and the limiting groove (19) are both arranged to be trapezoidal.

9. The air purification and disinfection device for an air conditioning and ventilation system according to claim 1, characterized in that: Guide blocks (4) are installed on both sides of the purification and disinfection frame (2), and guide grooves (3) are arranged on both sides of the interior of the purification and disinfection box (1), and the guide grooves (3) are connected to the guide blocks (4).

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