Filter element replacement structure of air purification unit

Abstract

The utility model relates to the technical field of air purification units, and discloses an air purification unit filter element replacement structure which comprises a machine shell, an air inlet is formed in the outer wall of the machine shell, a draught fan is fixedly connected to the inner wall of the machine shell, and an air outlet pipe penetrates through and is fixedly connected to the end, close to the draught fan, of the machine shell. A sleeve shell is slidably connected to the inner wall of the machine shell, a handle is fixedly connected to the outer wall of the upper end of the sleeve shell, a filter plate is slidably connected to the inner wall of the sleeve shell, a fixing plate penetrates through and is slidably connected to the outer wall of the upper end of the sleeve shell, and a clamping groove is formed in the outer wall of the side end of the sleeve shell. According to the filter element replacement structure of the air purification unit, the clamping block is separated from the clamping groove by pressing the button, meanwhile, the telescopic clamping block is pushed by the telescopic ejection block to contract, after the cover plate is opened, the sleeve shell and the filter plate can be taken out, the filter plate is convenient to replace, the sleeve shell with the replaced filter plate is pushed into the machine shell by pressing the button, and the filter plate can be fixed again.

Description

Technical Field

[0001] This utility model relates to the field of air purification unit technology, specifically to an air purification unit filter replacement structure. Background Technology

[0002] An air purification unit is a device that filters and purifies the air in the environment, ensuring that the air exiting the unit is free of harmful gases, thereby improving air quality and reducing the probability of inhaling harmful gases.

[0003] According to a public notice regarding an air purifier that facilitates filter replacement (Notice No.: CN212757710U), in the aforementioned application, pressing down on the limiting rod causes the locking rod to disengage from the limiting groove, while the moving spring in the moving device pops open the safety door, allowing the filter inside the machine to be replaced. This device has a simple structure, is easy to operate, and is highly practical. It also improves the time required to remove the safety door and reduces the installation steps during disassembly.

[0004] However, in actual use, the above-mentioned devices make it difficult to remove the filter for external replacement. The safety door needs to be opened, and the filter needs to be installed inside the air purifier unit. The user's operating space is small, and the installation is difficult. Furthermore, the above devices only use a spring and a round rod to install the filter. When encountering a high-powered fan, the filter may be deformed by strong winds, causing air leakage and reducing the purification efficiency of the air purifier unit. In view of this, we propose an air purifier unit filter replacement structure. Utility Model Content

[0005] The purpose of this invention is to provide a filter replacement structure for an air purifier unit to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air purifier filter replacement structure, comprising a housing, an air inlet on the outer wall of the housing, a fan fixedly connected to the inner wall of the housing, an air outlet pipe connected through and fixedly connected to one end of the housing near the fan, a sleeve slidably connected to the inner wall of the housing, a handle fixedly connected to the upper outer wall of the sleeve, a filter plate slidably connected to the inner wall of the sleeve, a fixing plate slidably connected through and slidingly connected to the upper outer wall of the sleeve, a slot on the side outer wall of the sleeve, and a fixing component disposed inside the housing, the fixing component comprising:

[0007] A pressure plate is slidably connected to the lower inner wall of the housing, and a rotating shaft is hinged to the lower outer wall of the pressure plate. A push-out spring is fixedly connected to one end of the rotating shaft near the pressure plate.

[0008] A connecting plate is fixedly connected to the outer wall of the pressure plate. A rotating shaft is fixedly connected to the end of the pressure plate away from the filter plate. A snap-fit ​​block is slidably connected to the end of the rotating shaft away from the pressure plate. An inclined block is fixedly connected to the end of the snap-fit ​​block away from the filter plate.

[0009] A snap-fit ​​spring is fixedly connected to the end of the inclined block away from the snap-fit ​​block. A cover plate is rotatably connected to the upper outer wall of the housing, and a telescopic snap-fit ​​block is fixedly connected to the lower outer wall of the cover plate.

[0010] Preferably, the housing is provided with an unlocking component, which includes a button. The fixed end of the button is fixedly connected to the outer wall of the housing, and the output end of the button is fixedly connected to a transmission plate. A push block is fixedly connected to the lower outer wall of the transmission plate, and a telescopic top block is fixedly connected to the end of the transmission plate near the button. By pressing the button, the transmission plate can move the push block and the telescopic top block, thereby causing the locking block to leave the locking slot and the telescopic locking block to retract, so that the filter plate can be removed from the housing by pulling up the cover and the filter plate can be replaced.

[0011] Preferably, the output ends of the telescopic locking block and the telescopic top block are both the same size as the handle opening. The side of the output end of the telescopic locking block away from the filter plate and the side of the output end of the telescopic top block away from the filter plate are both set as arc surfaces. The arc radius of the telescopic locking block is smaller than that of the telescopic top block. When the cover plate rotates, the arc surface of the output end of the telescopic locking block contacts the handle, causing the telescopic locking block to retract. After the telescopic locking block is inserted into the handle opening, the inner wall of the opening contacts the planar side of the extended output end of the telescopic locking block, making it difficult for the handle to rise. After the output end of the telescopic top block is inserted into the handle opening, the handle rising will cause the inner wall of the opening to fully contact the arc surface, causing the output end of the telescopic top block to retract.

[0012] Preferably, the upper inner wall of the housing is provided with a movable groove, the telescopic top block is slidably connected to the inner wall of the movable groove, and the movable groove is provided with a top opening at one end near the handle opening. The size of the output end of the telescopic top block is the same as the size of the top opening. When the transmission plate drives the telescopic top block to move to its output end facing the top opening, the output end of the telescopic top block extends and pushes the telescopic locking block in the handle opening to retract it, so that the handle can be raised at this time.

[0013] Preferably, a support plate is provided at one end of the rotating shaft near the pressure plate. The pressure plate is hinged to the support plate, and one end of the ejector spring is fixedly connected to the support plate. The other end of the ejector spring is fixedly connected to the inner wall of the housing. After pressing the button, the locking block leaves the slot and the telescopic locking block leaves the handle. The ejector spring can push the support plate to raise the pressure plate and eject the housing. Pressure plates are provided on both sides of the lower end of the housing, and the two sets of pressure plates are connected by a connecting plate.

[0014] Preferably, a rotating plate is provided at one end of the rotating shaft near the locking block, the locking block is slidably connected to the inner wall of the rotating plate, the end of the locking spring away from the inclined block is fixedly connected to the inner wall of the rotating plate, and the locking block is engaged with the locking slot. When the sleeve presses down on the pressure plate, the rotating shaft will rotate, thereby causing the rotating plate to drive the locking block to rotate and engage the locking block with the locking slot.

[0015] Preferably, the length of the inclined block is greater than the length of the locking block, and the ends of the push block and the inclined block that are close to each other are provided with inclined surfaces with the same slope. The push block and the inclined block are in contact. When the transmission plate moves down, the push block moves with it, so that the push block pushes the inclined block to move and compresses the locking spring, thereby causing the locking block to retract into the rotating plate and disengage from the slot.

[0016] Compared with the prior art, this utility model provides a filter replacement structure for an air purifier unit, which has the following beneficial effects:

[0017] 1. The filter replacement structure of this air purifier unit allows for easy replacement of the filter plate by pressing a button. This causes the transmission plate to move the push block, which in turn moves the inclined block and disengages the locking block from the slot. Simultaneously, the telescopic top block pushes the telescopic locking block to retract. After opening the cover, the housing along with the filter plate can be removed for easy filter plate replacement. Pressing the button again pushes the housing of the new filter plate into the housing. The housing presses against the pressure plate, causing the rotating shaft to rotate and engage the locking block with the slot. Rotating the cover allows the telescopic locking block to engage with the handle, ensuring the filter plate is stably fixed and preventing deformation.

[0018] 2. The filter replacement structure of this air purifier unit allows the housing to be unlocked by pressing the buttons. The ejector spring pushes the support plate to raise the pressure plate and eject the housing. The two pressure plates at the lower end of the housing are connected by a connecting plate, which keeps the ejected housing horizontal, making it easier to remove. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the casing of this utility model;

[0021] Figure 3 This is a schematic diagram of the casing structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the rotating shaft structure of this utility model;

[0023] Figure 5 This utility model Figure 2 Enlarged structural diagram of region A;

[0024] Figure 6 This is a schematic diagram of the cover plate structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the unlocking component structure of this utility model.

[0026] In the diagram: 1. Housing; 2. Air inlet; 3. Fan; 4. Air outlet duct; 5. Cover; 6. Handle; 7. Filter plate; 8. Fixing plate; 9. Slot; 10. Fixing component; 101. Pressure plate; 102. Push-out spring; 103. Connecting plate; 104. Rotating shaft; 105. Snap-fit ​​block; 106. Inclined block; 107. Snap-fit ​​spring; 108. Cover plate; 109. Telescopic snap-fit ​​block; 11. Unlocking component; 111. Button; 112. Transmission plate; 113. Push block; 114. Telescopic top block. Detailed Implementation

[0027] like Figures 1-7 As shown, this utility model provides a technical solution: an air purifier filter replacement structure, including a housing 1, an air inlet 2 on the outer wall of the housing 1, a fan 3 fixedly connected to the inner wall of the housing 1, an air outlet 4 through and fixedly connected to one end of the housing 1 near the fan 3, a sleeve 5 slidably connected to the inner wall of the housing 1, a handle 6 fixedly connected to the upper outer wall of the sleeve 5, a filter plate 7 slidably connected to the inner wall of the sleeve 5, a fixing plate 8 through and slidably connected to the upper outer wall of the sleeve 5, a slot 9 on the side outer wall of the sleeve 5, and a fixing component 10 inside the housing 1, the fixing component 10 including a pressure plate 101, a push-out spring 102, a connecting plate 103, a rotating shaft 104, a snap-fit ​​block 105, an inclined block 106, a snap-fit ​​spring 107, a cover plate 108, and a telescopic snap-fit ​​block 109.

[0028] In one embodiment of this utility model, a pressure plate 101 is slidably connected to the lower inner wall of the housing 1, and a rotating shaft 104 is hinged to the lower outer wall of the pressure plate 101. A push-out spring 102 is fixedly connected to one end of the rotating shaft 104 near the pressure plate 101. A connecting plate 103 is fixedly connected to the outer wall of the pressure plate 101, and a rotating shaft 104 is fixedly connected to one end of the pressure plate 101 away from the filter plate 7. A locking block 105 is slidably connected to one end of the rotating shaft 104 away from the pressure plate 101, and an inclined block 106 is fixedly connected to one end of the locking block 105 away from the filter plate 7. A snap-fit ​​spring 107 is fixedly connected to the end of the inclined block 106 away from the snap-fit ​​block 105. A cover plate 108 is rotatably connected to the upper outer wall of the housing 1, and a telescopic snap-fit ​​block 109 is fixedly connected to the lower outer wall of the cover plate 108. The output end of the telescopic snap-fit ​​block 109 and the output end of the telescopic top block 114 are both the same size as the opening of the handle 6. The side of the output end of the telescopic snap-fit ​​block 109 away from the filter plate 7 and the side of the output end of the telescopic top block 114 away from the filter plate 7 are both set as arc surfaces. The arc of the telescopic snap-fit ​​block 109 is smaller than that of the telescopic top block 105. The arc of the 14-inch cover plate 108 rotates, causing the arc of the output end of the telescopic block 109 to contact the handle 6, causing the telescopic block 109 to retract. After the telescopic block 109 is inserted into the opening of the handle 6, the inner wall of the opening contacts the flat side of the extended output end of the telescopic block 109, making it difficult for the handle 6 to rise. After the output end of the telescopic top block 114 is inserted into the opening of the handle 6, the rise of the handle 6 will cause the inner wall of the opening to fully contact the arc, causing the output end of the telescopic top block 114 to retract, thereby enabling the handle 6 to rise.

[0029] The rotating shaft 104 is provided with a support plate at one end near the pressure plate 101. The pressure plate 101 is hinged to the support plate, and one end of the ejector spring 102 is fixedly connected to the support plate. The other end of the ejector spring 102 is fixedly connected to the inner wall of the housing 1. When the button 111 is pressed, the locking block 105 is disengaged from the slot 9 and the telescopic locking block 109 is disengaged from the handle 6. The ejector spring 102 can push the support plate to raise the pressure plate 101 and eject the housing 5. Pressure plates 101 are provided on both sides of the lower end of the housing 5. The two sets of pressure plates 101 are connected by a connecting plate 103 so that the housing 5 ejected by the pressure plate 101 can remain horizontal, so that the housing 5 can be removed more easily. A rotating plate is provided at one end of the rotating shaft 104 near the locking block 105. The locking block 105 is slidably connected to the inner wall of the rotating plate. The end of the locking spring 107 away from the inclined block 106 is fixedly connected to the inner wall of the rotating plate. The locking block 105 is engaged with the locking groove 9. When the sleeve 5 presses down on the pressure plate 101, the rotating shaft 104 will rotate, thereby causing the rotating plate to drive the locking block 105 to rotate and engage the locking block 105 with the locking groove 9. This allows the sleeve 5 to be more stably fixed to the housing 1, preventing the filter plate 7 from shifting due to strong winds.

[0030] In addition, an unlocking component 11 is provided inside the housing 1. The unlocking component 11 includes a button 111. The fixed end of the button 111 is fixedly connected to the outer wall of the housing 1. The output end of the button 111 is fixedly connected to a transmission plate 112. The lower outer wall of the transmission plate 112 is fixedly connected to a push block 113. The end of the transmission plate 112 near the button 111 is fixedly connected to a telescopic top block 114. By pressing the button 111, the transmission plate 112 can move the push block 113 and the telescopic top block 114, thereby causing the locking block 105 to leave the slot 9 and the telescopic locking block 109 to retract. This allows the filter plate 7 to be removed from the housing 1 by pulling up the sleeve 5 and to be replaced. This allows the operation of replacing the filter plate 7 to be performed outside the housing 1, making it easier to replace the filter plate 7.

[0031] In an embodiment of this utility model, a movable groove is provided on the upper inner wall of the housing 1, and the telescopic top block 114 is slidably connected to the inner wall of the movable groove. A top opening is provided at one end of the movable groove near the opening of the handle 6. The size of the output end of the telescopic top block 114 is the same as the size of the top opening. When the transmission plate 112 drives the telescopic top block 114 to move to its output end facing the top opening, the output end of the telescopic top block 114 extends and pushes the telescopic locking block 109 in the opening of the handle 6 to retract, so that the handle 6 can rise at this time, thereby taking out the housing 5 along with the filter plate 7, and replacing the filter plate 7 outside the housing 1.

[0032] In this embodiment of the utility model, the length of the inclined block 106 is greater than the length of the snap-fit ​​block 105. The push block 113 and the inclined block 106 are both provided with inclined surfaces with the same slope at their close ends, and the push block 113 and the inclined block 106 are in contact. When the transmission plate 112 moves down, the push block 113 moves accordingly, causing the push block 113 to push the inclined block 106 to move and compress the snap-fit ​​spring 107, thereby causing the snap-fit ​​block 105 to retract into the inside of the rotating plate and disengage from the snap-fit ​​groove 9, thereby releasing the bottom limit of the sleeve 5 and allowing the sleeve 5 to be removed.

[0033] In use, the fan 3 blows air in through the air inlet 2, passes through the filter plate 7, and then exits through the air outlet 4, completing the air purification. When the filter plate 7 needs to be replaced, the button 111 can be pressed to move the transmission plate 112 downward, thereby causing the push block 113 to push the inclined block 106 to move and disengage from the slot 9. At the same time, the output end of the telescopic top block 114 pushes the telescopic locking block 109 to retract, so that the upper and lower ends of the casing 5 are released from their limits, thereby opening the cover plate 108. The ejector spring 102 can push the support plate to raise the pressure plate 101 and push out the casing 5. The two sets of pressure plates 101 at the lower end of the casing 5 are connected by the connecting plate 103, so that the pressure plate 101 pushes out. The housing 5 can be kept horizontal. Then, the housing 5 and the filter plate 7 can be taken out together through the handle 6. Then, pull open the fixing plate 8, put the clean filter plate 7 into the housing 5, and close the fixing plate 8. At this time, press the button 111 to reset it. Then push the housing 5 back into the housing 1 from the removed position, so that the housing 5 presses against the pressure plate 101, thereby causing the rotating shaft 104 to rotate. This causes the rotating plate to drive the locking block 105 to rotate, and the locking block 105 to engage with the locking groove 9. Then, rotate the cover plate 108 to make the telescopic locking block 109 engage in the handle 6, so that both the upper and lower ends of the housing 5 are fixed, thereby making the filter plate 7 more stably fixed in the housing 1.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An air purifier filter replacement structure, comprising a housing (1), an air inlet (2) on the outer wall of the housing (1), a fan (3) fixedly connected to the inner wall of the housing (1), an air outlet pipe (4) passing through and fixedly connected to one end of the housing (1) near the fan (3), a sleeve (5) slidably connected to the inner wall of the housing (1), a handle (6) fixedly connected to the upper outer wall of the sleeve (5), a filter plate (7) slidably connected to the inner wall of the sleeve (5), a fixing plate (8) passing through and slidably connected to the upper outer wall of the sleeve (5), and a slot (9) on the side outer wall of the sleeve (5), characterized in that: The housing (1) is provided with a fixing component (10) inside, the fixing component (10) including: Pressure plate (101), the pressure plate (101) is slidably connected to the lower inner wall of the housing (1), and a rotating shaft (104) is hinged to the lower outer wall of the pressure plate (101). A push-out spring (102) is fixedly connected to one end of the rotating shaft (104) near the pressure plate (101). A connecting plate (103) is fixedly connected to the outer wall of the pressure plate (101). A rotating shaft (104) is fixedly connected to one end of the pressure plate (101) away from the filter plate (7). A snap-fit ​​block (105) is slidably connected to one end of the rotating shaft (104) away from the pressure plate (101). An inclined block (106) is fixedly connected to one end of the snap-fit ​​block (105) away from the filter plate (7). A snap-fit ​​spring (107) is fixedly connected to the end of the inclined block (106) away from the snap-fit ​​block (105). A cover plate (108) is rotatably connected to the upper outer wall of the housing (1). A telescopic snap-fit ​​block (109) is fixedly connected to the lower outer wall of the cover plate (108).

2. The filter replacement structure of an air purification unit according to claim 1, characterized in that: The housing (1) is provided with an unlocking component (11), which includes a button (111). The fixed end of the button (111) is fixedly connected to the outer wall of the housing (1). The output end of the button (111) is fixedly connected to a transmission plate (112). The lower outer wall of the transmission plate (112) is fixedly connected to a push block (113). The end of the transmission plate (112) near the button (111) is fixedly connected to a telescopic top block (114).

3. The air purifier filter replacement structure according to claim 2, characterized in that: The output end of the telescopic block (109) and the output end of the telescopic top block (114) are both the same size as the opening of the handle (6). The side of the output end of the telescopic block (109) away from the filter plate (7) and the side of the output end of the telescopic top block (114) away from the filter plate (7) are both set as arc surfaces. The arc radius of the telescopic block (109) is smaller than that of the telescopic top block (114).

4. The filter replacement structure of an air purification unit according to claim 2, wherein: The upper inner wall of the housing (1) is provided with a moving groove, the telescopic top block (114) is slidably connected to the inner wall of the moving groove, and the end of the moving groove near the opening of the handle (6) is provided with a top opening, the size of the output end of the telescopic top block (114) is the same as the size of the top opening.

5. The filter replacement structure of an air purification unit according to claim 1, wherein: The rotating shaft (104) is provided with a support plate at one end near the pressure plate (101). The pressure plate (101) is hinged to the support plate, and one end of the ejector spring (102) is fixedly connected to the support plate. The other end of the ejector spring (102) is fixedly connected to the inner wall of the housing (1).

6. The filter replacement structure of an air purification unit according to claim 1, wherein: The rotating shaft (104) has a rotating plate at one end near the locking block (105). The locking block (105) is slidably connected to the inner wall of the rotating plate. The locking spring (107) is fixedly connected to the inner wall of the rotating plate at one end away from the inclined block (106). The locking block (105) is locked to the slot (9).

7. The air purifier filter replacement structure according to claim 2, characterized in that: The length of the inclined block (106) is greater than the length of the clamping block (105), and the push block (113) and the inclined block (106) are provided with inclined surfaces with consistent slopes at the ends close to each other, and the push block (113) and the inclined block (106) are attached.

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