Formaldehyde air purifier with filter screen easy to replace

Abstract

The utility model relates to the technical field of air purification, in particular to a formaldehyde air purifier with a filter screen easy to replace, which comprises a shell, a buckle, a filter element and an air blower, the buckle comprises a clamping block which is disassembled and assembled in a pressing mode, a clamping groove used for embedding and positioning the clamping block and a hook used for fixing the clamping block, an air blower is installed at the top of the shell, the filter element is arranged at the center of the interior of the shell, the buckle is arranged between the top of the filter element and the top of the shell, the clamping block is fixedly installed at the top of the filter element, and the clamping groove is formed in the buckle and located at the top of the shell. The hook is installed in the clamping groove and is in sliding connection with the clamping block. Mounting and dismounting of the filter screen can be completed through simple extrusion, the dismounting speed is high, the quality guarantee time is long, the first time when the filter screen fails can be known and the internal environment of the filter can be protected by using a standby assembly, and the service life of the filter element is greatly prolonged by adopting various materials to form the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, in particular to a formaldehyde air purifier with an easy-to-replace filter screen. Background Art

[0002] An air filter is a common household appliance that absorbs indoor air through a filter and then discharges it after filtration. It can effectively reduce the number of dust and toxic molecules in the air and improve air quality. However, due to the large amount of impurities in the air, the filter cannot work for a long time and requires frequent maintenance and cleaning. However, in traditional filters, most filters are installed by fixing methods such as bolts, which are inconvenient to disassemble and seriously affect maintenance efficiency. Therefore, an air purifier with easy-to-replace filter is needed.

[0003] Chinese patent CN220648537U discloses a formaldehyde air purifier, including a purifier body, two filter screens, multiple legs and two sets of mounting mechanisms, the mounting mechanism including a U-shaped plate, a support rod, a cam, a force plate, a spring, an insertion rod and a slider, the purifier body is provided with two slide grooves, a mounting hole and two through holes, the two sliders are slidably connected to the corresponding slide grooves respectively, and the sliders are fixedly connected to the corresponding filter screens, the filter screens are placed in the corresponding mounting holes, the slider is provided with a limiting groove, the U-shaped plate is fixedly connected to the purifier body, the support rod is rotatably connected to the U-shaped plate, the cam is fixedly connected to the support rod, one end of the insertion rod is fixedly connected to the force plate, the other end of the insertion rod passes through the through hole and is inserted into the corresponding limiting groove, the cam is in contact with the force plate, in this way, the filter screen can be more conveniently disassembled and installed, and the replacement efficiency is improved.

[0004] There are still several points for improvement in the above solution: after long-term use, the rotation speed of the cam decreases, affecting the disassembly speed; the lack of feedback capability makes it impossible to know the first time when the filter fails, which easily causes internal contamination of the filter. Utility Model Content

[0005] In order to solve the problems of the existing technology, the utility model provides a formaldehyde air purifier with easy filter replacement, comprising a shell and a clip installed in the shell for convenient installation and removal of the filter, a filter element for filtering formaldehyde and a blower for exhausting air. The clip includes a card block for press-type disassembly, a card slot for engaging and positioning the card block and a hook for fixing the card block. The blower is installed on the top of the shell, the filter element is arranged at the inner center of the shell, the clip is arranged between the top of the filter element and the top of the shell, the card block is fixedly installed on the top of the filter element, the card slot is arranged in the clip and is at the top of the shell, and the hook is installed in the card slot and is slidably connected to the card block.

[0006] Preferably, the card block includes a protrusion, a hook groove, a stepped groove and a hook-off groove, the protrusion is arranged at the center of the card block, the hook groove is arranged at the top of the card block and surrounds the protrusion, the bottom of the hook groove is connected to one end of the stepped groove, and the other end of the stepped groove is connected to the hook-off groove.

[0007] Preferably, the card slot includes a baffle, a first spring and a positioning hole. The baffle is installed inside the card slot. One end of the first spring is connected to the baffle, and the other end is connected to the card slot.

[0008] Preferably, the filter element includes a filter layer, a spare groove, a bottom cover and a top cover, the top cover is installed on the top of the filter element and fixedly connected to the block, the bottom cover is installed on the bottom of the filter element, the spare groove is set at the center of the bottom cover, and the filter layer is installed in the center of the filter element.

[0009] Preferably, the filter layer includes a first filter paper, an activated carbon layer and a through hole, the first filter paper surrounds the outside of the filter layer, the activated carbon layer is arranged on the inside of the filter layer, and the through hole is arranged on the filter layer.

[0010] Preferably, the spare tank includes a second filter paper, filter holes, a second spring and a cap, the second filter paper is embedded in the spare tank, the filter holes are arranged on the side wall of the spare tank, the cap is installed on the top of the spare tank, and the second spring is installed between the cap and the spare tank.

[0011] Preferably, the bottom cover comprises a vent and a retaining ring, the vent is arranged at the center of the bottom cover, and the retaining ring is installed in the vent.

[0012] Preferably, the blower includes a fan, a connecting port, a motor and an air outlet, the fan is installed at the inner center of the blower, the connecting port is arranged at the bottom of the blower, the motor is installed at the top of the blower, and the air outlet is arranged on the side of the blower.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model can complete the installation and disassembly of the filter screen by simple squeezing, and the disassembly speed is fast and the shelf life is long. Specifically, the buckle hangs the filter element with the filter screen on the housing by pressing and connecting, and the filter element is squeezed from the bottom of the housing to drive the card block to hit the card slot to complete the installation and disassembly of the filter element.

[0015] 2. The utility model uses a spare component, which can detect the failure of the filter in the first time and protect the internal environment of the filter. Specifically, when the filter element is blocked due to long-term operation, the air pressure inside the filter element is gradually reduced by the exhaust of the blower, and the external air enters the filter from the bottom of the shell through the spare slot.

[0016] 3. The utility model adopts a variety of materials to form the filter element, which greatly improves its service life. Specifically, the filter layer is used to install a variety of filter materials in the filter element. The first filter paper is used to preliminarily filter dust particles in the air to prevent them from entering the activated carbon layer and affecting its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a formaldehyde air purifier with an easy-to-replace filter.

[0018] Figure 2 This is a three-dimensional diagram of the filter element in a formaldehyde air purifier with easy-to-replace filter.

[0019] Figure 3 This is a three-dimensional diagram of the clips in a formaldehyde air purifier that makes it easy to replace the filter.

[0020] Figure 4 A three-dimensional diagram of a card block in a formaldehyde air purifier with easy filter replacement.

[0021] Figure 5 It is a three-dimensional diagram of the filter layer in a formaldehyde air purifier with easy filter replacement.

[0022] Figure 6 A three-dimensional diagram of the spare tank in a formaldehyde air purifier with easy filter replacement.

[0023] Figure 7 This is a three-dimensional diagram of the bottom cover of a formaldehyde air purifier with an easy-to-replace filter.

[0024] Figure 8 A three-dimensional diagram of the blower in a formaldehyde air purifier with an easily replaceable filter.

[0025] The numbers in the figure are: 1. shell; 2. buckle; 3. block; 31. protrusion; 32. hook slot; 33. stepped slot; 34. unhooking slot; 4. slot; 41. baffle; 42. first spring; 43. positioning hole; 5. hook; 6. filter element; 61. filter layer; 611. first filter paper; 612. activated carbon layer; 613. through hole; 62. spare slot; 621. second filter paper; 622. filter hole; 623. second spring; 624. capping; 63. bottom cover; 631. vent; 632. retaining ring; 64. top cover; 7. blower; 71. fan; 72. connecting port; 73. motor; 74. air outlet. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] See also Figures 1 to 8 As shown, a formaldehyde air purifier with easy filter replacement includes a shell 1 and a buckle 2 installed in the shell 1 for convenient installation and removal of the filter, a filter element 6 for filtering formaldehyde and a blower 7 for exhaust. The buckle 2 includes a push-type disassembly block 3, a slot 4 for engaging and positioning the block 3 and a hook 5 for fixing the block 3. The blower 7 is installed on the top of the shell 1, the filter element 6 is arranged at the inner center of the shell 1, the buckle 2 is arranged between the top of the filter element 6 and the top of the shell 1, the block 3 is fixedly installed on the top of the filter element 6, the slot 4 is arranged in the buckle 2 and is at the top of the shell 1, and the hook 5 is installed in the slot 4 and is slidably connected with the block 3.

[0028] In this solution, external air is sucked in from the housing 1 by the blower 7, and after being filtered and purified by the filter element 6, the purified air is discharged from the top of the blower 7. The clip 2 hangs the filter element 6 with the filter screen on the housing 1 by pressing and connecting. The filter element 6 is squeezed from the bottom of the housing 1 to drive the card block 3 to hit the card slot 4. At this time, the hook 5 is hooked with the card block 3 to complete the fixation of the filter element 6. When the filter element 6 is removed, the card block 3 is squeezed again. At this time, the hook 5 is disconnected from the card block 3 to complete the removal of the filter element 6. The filter element 6 is composed of a composite of multiple materials, which is convenient for quick cleaning and replacement after disassembly.

[0029] See also Figure 3 and Figure 4 As shown, the block 3 includes a protrusion 31, a hooking groove 32, a stepped groove 33 and a hooking groove 34. The protrusion 31 is arranged at the center of the block 3, the hooking groove 32 is arranged at the top of the block 3 and surrounds the protrusion 31, the bottom of the hooking groove 32 is connected to one end of the stepped groove 33, and the other end of the stepped groove 33 is connected to the hooking groove 34.

[0030] The protrusion 31 is used to complete the hook connection with the hook 5. When installing the filter element 6, the hook 5 first enters the hook entry groove 32, and then is hooked with the bottom of the protrusion 31 after being lifted by the height of the stepped groove 33. At this time, the filter element 6 is firmly installed in the housing 1. When removing the filter element 6, the block 3 is squeezed, and the hook 5 is lifted by the stepped groove 33 again and enters the unhooking groove 34, and then enters the hook entry groove 32 in the reverse direction from the unhooking groove 34 to complete the detachment of the hook 5.

[0031] See also Figure 3 As shown, the card slot 4 includes a baffle 41 , a first spring 42 and a positioning hole 43 . The baffle 41 is installed inside the card slot 4 . One end of the first spring 42 is connected to the baffle 41 , and the other end is connected to the card slot 4 .

[0032] The positioning hole 43 is used to install the hook 5. In order to ensure the elastic hook connection between the block 3 and the slot 4, the first spring 42 is used to provide downward pressure for the block 3, ensuring that after the filter element 6 is installed, the hook 5 is firmly connected to the protrusion 31 on the block 3. At the same time, it provides acceleration for the block 3 to separate from the slot 4 during disassembly, further speeding up the disassembly speed of the filter element 6.

[0033] See also Figures 2 to 7 As shown, the filter element 6 includes a filter layer 61, a spare groove 62, a bottom cover 63 and a top cover 64. The top cover 64 is installed on the top of the filter element 6 and is fixedly connected to the block 3. The bottom cover 63 is installed at the bottom of the filter element 6. The spare groove 62 is set at the center of the bottom cover 63. The filter layer 61 is installed in the center of the filter element 6.

[0034] The filter layer 61 is used to install a variety of filter materials in the filter element 6. The spare groove 62 serves as a backup filter component to ensure that formaldehyde air is prevented from entering the top of the blower 7 when the filter layer 61 is damaged, thereby avoiding contamination of the clean gas at the blower 7. The bottom cover 63 is used to seal the bottom of the outer shell 1 to avoid dust pollution caused by the bottom of the filter element 6 contacting the ground. The top cover 64 provides positioning for the installation of the block 3.

[0035] See also Figure 5 As shown, the filter layer 61 includes a first filter paper 611 , an activated carbon layer 612 and a through hole 613 . The first filter paper 611 is surrounded on the outside of the filter layer 61 , the activated carbon layer 612 is arranged on the inside of the filter layer 61 , and the through hole 613 is arranged on the filter layer 61 .

[0036] The first filter paper 611 is used to preliminarily filter dust particles in the air to prevent them from entering the activated carbon layer 612 and affecting its service life. The activated carbon layer 612 is used to filter formaldehyde molecules to complete the detoxification of the air. The through hole 613 is used to connect the inside and outside of the filter element 6 to ensure air pressure balance.

[0037] See also Figure 6 and Figure 7 As shown, the spare tank 62 includes a second filter paper 621, a filter hole 622, a second spring 623 and a cap 624. The second filter paper 621 is embedded in the spare tank 62, the filter hole 622 is set on the side wall of the spare tank 62, the cap 624 is installed on the top of the spare tank 62, and the second spring 623 is installed between the cap 624 and the spare tank 62.

[0038] The second filter paper 621 and the first filter paper 611 are made of the same principle and material. The cap 624 is in a closed state when the filter element 6 is working normally. When the filter element 6 is clogged due to long-term operation, the air pressure inside the filter element 6 is gradually reduced by the exhaust of the blower 7. At this time, the cap 624 is pulled open and the spare slot 62 enters the working state. After the filter element 6 is cleaned and maintained, the air pressure is re-balanced and the second spring 623 closes the cap 624 again.

[0039] See also Figure 7 As shown, the bottom cover 63 includes a vent 631 and a retaining ring 632 . The vent 631 is provided at the center of the bottom cover 63 , and the retaining ring 632 is installed in the vent 631 .

[0040] The vent 631 is used for air intake of the spare tank 62. When the spare tank 62 is started, external air enters the interior of the filter from the bottom of the shell 1. The retaining ring 632 facilitates the disassembly of the bottom cover 63 and the replacement of various parts in the spare tank 62.

[0041] See also Figure 1 and Figure 8 As shown, the blower 7 includes a fan 71, a connecting port 72, a motor 73 and an air outlet 74. The fan 71 is installed at the inner center of the blower 7, the connecting port 72 is arranged at the bottom of the blower 7, the motor 73 is installed at the top of the blower 7, and the air outlet 74 is arranged on the side of the blower 7.

[0042] The motor 73 provides a power source for the fan 71 , and the fan 71 rotates to extract air from the inside of the filter. The connecting port 72 is used to transmit the filtered air, and the air outlet 74 is used to discharge the clean gas out of the blower 7 .

[0043] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A formaldehyde air purifier with an easily replaceable filter, comprising a housing (1), a clip (2) mounted in the housing (1) for convenient installation and removal of the filter, a filter element (6) for filtering formaldehyde, and a blower (7) for extracting and exhausting air; It is characterized by: The buckle (2) comprises a card block (3) for press-type disassembly and assembly, a card slot (4) for engaging and positioning the card block (3), and a hook (5) for fixing the card block (3); a blower (7) is installed on the top of the housing (1); a filter element (6) is arranged at the inner center of the housing (1); the buckle (2) is arranged between the top of the filter element (6) and the top of the housing (1); the card block (3) is fixedly installed on the top of the filter element (6); the card slot (4) is arranged in the buckle (2) and is located at the top of the housing (1); the hook (5) is installed in the card slot (4) and is slidably connected to the card block (3).

2. A formaldehyde air purifier with an easy-to-replace filter according to claim 1, characterized in that: The card block (3) comprises a protrusion (31), a hooking groove (32), a stepped groove (33) and a hook-off groove (34); the protrusion (31) is arranged at the center of the card block (3); the hooking groove (32) is arranged at the top of the card block (3) and surrounds the protrusion (31); the bottom of the hooking groove (32) is connected to one end of the stepped groove (33); and the other end of the stepped groove (33) is connected to the hook-off groove (34).

3. The formaldehyde air purifier with an easy-to-replace filter according to claim 1, characterized in that: The card slot (4) comprises a baffle (41), a first spring (42) and a positioning hole (43); the baffle (41) is installed inside the card slot (4); one end of the first spring (42) is connected to the baffle (41), and the other end is connected to the card slot (4).

4. The formaldehyde air purifier with an easily replaceable filter according to claim 1, characterized in that: The filter element (6) comprises a filter layer (61), a spare groove (62), a bottom cover (63) and a top cover (64). The top cover (64) is mounted on the top of the filter element (6) and fixedly connected to the clamping block (3). The bottom cover (63) is mounted on the bottom of the filter element (6). The spare groove (62) is arranged at the center of the bottom cover (63). The filter layer (61) is mounted at the center of the filter element (6).

5. The formaldehyde air purifier with easy filter replacement according to claim 4, characterized in that: The filter layer (61) comprises a first filter paper (611), an activated carbon layer (612) and a through hole (613); the first filter paper (611) is surrounded on the outside of the filter layer (61); the activated carbon layer (612) is arranged on the inside of the filter layer (61); and the through hole (613) is arranged on the filter layer (61).

6. The formaldehyde air purifier with easily replaceable filter according to claim 4, characterized in that: The standby tank (62) comprises a second filter paper (621), a filter hole (622), a second spring (623) and a capping (624). The second filter paper (621) is embedded in the standby tank (62), the filter hole (622) is arranged on the side wall of the standby tank (62), the capping (624) is installed on the top of the standby tank (62), and the second spring (623) is installed between the capping (624) and the standby tank (62).

7. The formaldehyde air purifier with easily replaceable filter according to claim 4, characterized in that: The bottom cover (63) includes a vent (631) and a retaining ring (632), wherein the vent (631) is arranged at the center of the bottom cover (63), and the retaining ring (632) is installed in the vent (631).

8. The formaldehyde air purifier with easily replaceable filter according to claim 1, characterized in that: The blower (7) comprises a fan (71), a communication port (72), a motor (73) and an air outlet (74). The fan (71) is installed at the inner center of the blower (7), the communication port (72) is arranged at the bottom of the blower (7), the motor (73) is installed at the top of the blower (7), and the air outlet (74) is arranged on the side of the blower (7).

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