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CN-121993864-A - Air purifier with filter element convenient to replace

CN121993864ACN 121993864 ACN121993864 ACN 121993864ACN-121993864-A

Abstract

The invention relates to the field of air purification equipment, in particular to an air purifier convenient for replacing a filter element, which comprises a purifier body, wherein the purifier body comprises a filter element installation shell, an air filter element is arranged in the filter element installation shell, a base is arranged at the lower end part of the filter element installation shell, a coaming which stretches into the filter element installation shell is arranged at the base, a lifting mechanism installation cavity is formed between the coaming and the base, a lifting mechanism is arranged in the lifting mechanism installation cavity, and a connecting mechanism for connecting the base and the filter element installation shell is also arranged in the lifting mechanism installation cavity. The invention adopts the 'plug-in' connection of the limiting plate and the limiting groove, can conveniently realize the replacement of the air filter element, does not need to detach bolts when the filter element is assembled and disassembled to replace the air filter element, does not cause the problems of deformation of the shell, loosening and damage of the screw hole and the like due to repeated operation, has no influence of the replacement times, and remarkably prolongs the service life of the equipment.

Inventors

  • Shen Lushuang
  • WU GUOHAI

Assignees

  • 浙江置顶环境科技有限公司

Dates

Publication Date
20260508
Application Date
20260313

Claims (10)

  1. 1. The air purifier with the filter element convenient to replace is characterized by comprising a purifier body (100), wherein the purifier body (100) comprises a filter element installation shell (110), an air filter element (210) is arranged in the filter element installation shell (110), a plurality of air inlets (111) are formed in the filter element installation shell (110), a base (120) is arranged at the lower end part of the filter element installation shell (110), a surrounding plate (220) extending into the filter element installation shell (110) is arranged at the base (120), a lifting mechanism installation cavity (230) is formed between the surrounding plate (220) and the base (120), a lifting mechanism is arranged in the lifting mechanism installation cavity (230), the lifting mechanism comprises a supporting plate (240) for supporting the lower end part of the air filter element (210), the supporting plate (240) can move along the height direction of the filter element installation shell (110), a connecting mechanism for connecting the base (120) with the filter element installation shell (110) is further arranged in the lifting mechanism installation cavity (230), a fan installation shell (130) is arranged at the upper end part of the filter element installation shell (110), a lower end surface of the fan installation shell (130) and the supporting plate (240) together form a lifting mechanism installation cavity (230), the lifting mechanism is arranged in the air filter element installation shell (130), and the air filter element installation shell (130) is pumped out.
  2. 2. The air purifier for conveniently replacing filter elements according to claim 1, wherein the lifting mechanism comprises a mounting bracket (250) arranged in a lifting mechanism mounting cavity (230), a supporting block (310) is slidably arranged at the mounting bracket (250), a connecting rod (320) connected with the supporting plate (240) is arranged at the supporting block (310), a screw rod (330) penetrating through the supporting block (310) is rotatably arranged at the mounting bracket (250), a screw rod nut (340) matched with the screw rod (330) is arranged at the supporting block (310), a first bevel gear (350) is connected to the bottom end part of the screw rod (330), a second bevel gear (360) matched with the first bevel gear (350) is rotatably arranged at the mounting bracket (250), and a driving rod (260) used for driving the second bevel gear (360) is rotatably arranged at the lifting mechanism mounting cavity (230).
  3. 3. The air purifier for conveniently replacing the filter element according to claim 2, wherein the mounting bracket (250) is provided with a sliding rail (370) arranged along the height direction thereof, and the supporting block (310) is provided with a sliding block (380) matched with the sliding rail (370).
  4. 4. An air purifier for facilitating filter element replacement according to claim 2, wherein one end of the driving rod (260) extends out of the shroud (220), a housing groove (410) for the driving rod (260) to pass through is formed at the end of the filter element installation housing (110) corresponding to the end of the driving rod (260) extending out of the shroud (220), the end of the driving rod (260) passes through the housing groove (410), and a hand wheel (140) is arranged at the end of the driving rod (260) passing through the housing groove (410).
  5. 5. An air purifier for facilitating filter element replacement according to claim 2, wherein a bevel gear installation through hole (510) is formed in the installation support (250), a connecting sleeve (610) in clearance fit with the bevel gear installation through hole (510) is arranged in the second bevel gear (360), the end portion of the connecting sleeve (610) extends out of the bevel gear installation through hole (510), and an annular plate (620) for limiting rotation of the second bevel gear (360) in the bevel gear installation through hole (510) is arranged at the end portion of the connecting sleeve (610) extending out of the bevel gear installation through hole (510).
  6. 6. The air purifier for conveniently replacing filter elements according to claim 4, wherein a second bevel gear through hole (630) for the driving rod (260) to pass through is arranged at the second bevel gear (360), a strip-shaped chute (710) arranged along the axis direction of the driving rod (260) is arranged at the middle part of the driving rod (260), and a convex block (640) which stretches into the strip-shaped chute (710) and is in clearance fit with the strip-shaped chute (710) is arranged in the inner wall of the second bevel gear through hole (630).
  7. 7. The air purifier for conveniently replacing filter elements according to claim 6, wherein the lifting mechanism is arranged in the cavity (230), an L-shaped plate (390) is arranged at the other end part, close to the driving rod (260), of the lifting mechanism, a plurality of clamping grooves (810) are formed in the position, close to the driving rod (260), of the L-shaped plate (390), the clamping grooves (810) are uniformly distributed along the circumferential direction of the central axis of the driving rod (260), the end part, close to the L-shaped plate (390), of the driving rod (260) is outwards expanded to form an expanding part (720), a plurality of clamping teeth (730) are arranged at the expanding part (720), the end part, close to the hand wheel (140), of the driving rod (260) is outwards expanded to form a first shaft shoulder (740), a first spring (3100) arranged between the coaming (220) and the first shaft shoulder (740) is sleeved at the driving rod (260), and the first spring (3100) is used for pushing the driving rod (260) to move so as to enable the clamping teeth (730) at the expanding part (720) to be abutted into the clamping grooves (810).
  8. 8. The air purifier for conveniently replacing filter elements according to claim 7, wherein the end portion of the driving rod (260) close to the L-shaped plate (390) is expanded outwards to form a second shaft shoulder (750), the adjacent position of the first shaft shoulder (740) and the driving rod (260) and the adjacent position of the second shaft shoulder (750) and the driving rod (260) are respectively provided with an inclined surface (760), the number of the connecting mechanisms is 2, each connecting mechanism comprises 2 mounting seats (3110), the 2 mounting seats (3110) are symmetrically arranged at the first shaft shoulder (740) or the second shaft shoulder (750), a cover plate (3120) is arranged at the mounting seats (3110), a strip-shaped through hole (910) is formed between the cover plate (3120) and the mounting seats (3110), a limiting plate (3130) is arranged in the strip-shaped through hole (910) in a sliding mode, a limiting groove (420) is formed at the end portion of the limiting plate (3130) corresponding to the limiting plate (31110), a limiting groove (420) is formed at the end portion of the filter element mounting housing (110), the first shaft shoulder (740) and the second shaft shoulder (310) are symmetrically arranged at the first shaft shoulder (3110) or the second shaft shoulder (750) so as to enable the limiting plate (310) to penetrate through the limiting groove (420) to be fixedly arranged at the end portion (3110) of the mounting seat (3110), the bottom end face of limiting plate (3130) is equipped with spring mounting panel (930) that stretches into in spring mounting cavity (920), is equipped with second spring (940) between the inner wall of spring mounting cavity (920) spring mounting panel (930), second spring (940) are used for pulling out limiting plate (3130)'s tip from limiting groove (420) in order to relieve the fixed to filter core installation casing (110) when first shoulder (740) and second shoulder (750) dislocation with limiting plate (3130).
  9. 9. The air purifier for conveniently replacing the filter element according to claim 1, wherein rubber pads (270) are arranged on the lower end surface of the fan installation shell (130) and the upper end surface of the supporting plate (240).
  10. 10. The air purifier for conveniently replacing filter elements according to claim 1, wherein a shell air outlet (1110) positioned at the upper end part of the air filter element (210) is arranged at the fan installation shell (130), the air extraction mechanism comprises an air extraction fan (1120) which is arranged in the fan installation shell (130) and covers the shell air outlet (1110), a sealing plate (1130) used for sealing the fan installation shell (130) is arranged at the upper end part of the fan installation shell (130), a sealing plate air outlet (1140) is arranged at the sealing plate (1130), and a rubber sealing ring (1150) positioned between the air extraction fan (1120) and the sealing plate (1130) is arranged at the bottom end surface of the sealing plate (1130).

Description

Air purifier with filter element convenient to replace Technical Field The invention relates to the field of air purifying equipment, in particular to an air purifier with a filter element convenient to replace. Background As a core device for improving indoor air quality, the air purifier is widely applied to various places such as families, offices, medical treatment and the like, and the market demand and the technical research and development attention of the air purifier all show a rapidly growing situation. The core purification component of the air purifier is an air filter core, pollutants in the air are removed through physical filtration, adsorption or catalysis and the like, however, the purification efficiency of the filter core is reduced due to accumulation of the pollutants in the long-term use process, so that periodic replacement of the filter core is a necessary link for ensuring stable operation of the air purifier. Currently, two major problems to be solved in the design and the installation structure of the filter element exist in the air purifier on the market, and the use experience of a user and the adaptability of equipment are seriously affected. On the one hand, the filter core is complicated in replacement operation and poor in maintenance convenience. The filter element of the existing air purifier mostly adopts a closed installation structure, the filter element is usually fixed in the purifier shell, and the shell is fastened with the base or the main body frame through a plurality of screws. When the filter element needs to be replaced, a user needs to detach the fixing screws one by means of special tools such as a screwdriver, the old filter element can be taken out after the shell is opened, and the shell needs to be positioned and fastened again after replacement is completed. The process is complex in operation steps and long in time consumption, is particularly inconvenient for old users, female users and other groups with weak hand ability, and meanwhile, the repeated disassembly of the screw is easy to lead to screw abrasion and shell deformation, so that the structural stability and service life of the equipment are reduced, and even the problem of poor sealing possibly caused by improper installation can be solved, and the purification effect is influenced. On the other hand, the device has poor adaptability to the specification of the filter element and has insufficient universality. Under different use scenes, the purification efficiency and the windage performance requirements of users on the air purifier are different, so that the air filter element on the market presents various diameters and height specifications. However, the size of the filter element installation cavity of the existing air purifier is mostly of a fixed structure, and the position of the internal supporting and positioning component cannot be adjusted, so that the existing air purifier can only be matched with a filter element with a single specification. If the user needs to replace the filter elements with different specifications to meet specific purification requirements, or the filter elements with the same specifications cannot be obtained due to the limitation of purchase channels, the whole air purifier can be replaced or the equipment shell can be modified. Disclosure of Invention In order to solve the technical problems, the invention is solved by the following technical scheme. The air purifier comprises a purifier body, wherein the purifier body comprises a filter element installation shell, an air filter element is arranged in the filter element installation shell, a plurality of air inlets are formed in the filter element installation shell, a base is arranged at the lower end of the filter element installation shell, a coaming extending into the filter element installation shell is arranged at the base, a lifting mechanism installation cavity is formed between the coaming and the base, a lifting mechanism is arranged in the lifting mechanism installation cavity, the lifting mechanism comprises a supporting plate for supporting the lower end of the air filter element, the supporting plate can move along the height direction of the filter element installation shell, a connecting mechanism for connecting the base with the filter element installation shell is further arranged in the lifting mechanism installation cavity, a fan installation shell is arranged at the upper end of the filter element installation shell, the lower end face of the fan installation shell and the supporting plate clamp the air filter element together, and an air exhausting mechanism for exhausting air in the filter element installation shell is arranged in the fan installation shell. As a preferable scheme of the invention, the lifting mechanism comprises a mounting bracket arranged in a mounting cavity of the lifting mechanism, a supporting block is slidably arranged at the mounting bracket, a connecting