An air purifier

Abstract

The present invention relates to the technical field of air purification equipment, and specifically to an air purifier, comprising a main body, a shell being detachably connected to the main body, a mounting mechanism being provided between the main body and the shell, a replacement mechanism being detachably connected to the mounting mechanism, a placement mechanism being provided inside the main body, a limiting mechanism being provided between the shell and the main body, and an opening and closing plate being rotatably connected to the shell; the installation mechanism is provided to facilitate automatic resetting of the replacement mechanism, so that the user can install the filter component without removing the shell, thereby reducing the number of operation steps; the replacement mechanism is provided to facilitate rapid docking and installation of the filter component onto the mounting mechanism, thereby improving replacement efficiency; the placement mechanism is provided to facilitate temporary fixation of the main body, so that the device is prevented from being accidentally touched and tipped over, thereby improving the safety of the device; the limiting mechanism is provided to facilitate disassembly and assembly of the shell, thereby facilitating maintenance and repair.

Description

Technical Field

[0001] The invention relates to the technical field of air purification equipment, in particular to an air purifier. Background Art

[0002] When traditional air purification devices are used for household air purification, they only have a single air purification function and do not have a fixed anti-dumping function. Children may be easily injured if they touch them accidentally. In addition, when replacing the filter, the traditional equipment needs to disassemble the outer shell of the equipment, and the operation requirements for replacing the filter are high, which is not suitable for aging families with poor acceptance. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an air purifier.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an air purifier, including a main body, a shell detachably connected to the main body, a mounting mechanism is provided between the main body and the shell, a replacement mechanism is detachably connected to the mounting mechanism, a placement mechanism is provided inside the main body, a limiting mechanism is provided between the shell and the main body, and an opening and closing plate is rotatably connected to the shell.

[0005] Specifically, the mounting mechanism includes a winding disk, which is rotatably connected to the inside of the main body, a first rotating shaft is provided in the middle of the winding disk, the first rotating shaft is fixedly connected to the inside of the main body, a spring is wound between the first rotating shaft and the winding disk, a winding belt is wound around the outside of the main body, one end of the winding belt is wound around the winding disk, and the other end of the winding belt is fixedly connected to a sliding bar, and the sliding bar is slidably connected between the main body and the outer shell.

[0006] Specifically, the installation mechanism also includes a limit block, and the two ends of the slide bar are respectively slidably connected to a limit block, one semicircular end of the limit block is engaged with the main body, one end of the limit block is in contact with a first spring, an auxiliary block is provided on one side of the limit block, the auxiliary block is slidably connected to the main body, a second spring is provided on one side of the auxiliary block, and one end of the second spring is fixedly connected to the inner wall of the main body.

[0007] Specifically, the replacement mechanism includes a docking bar, a docking bar is provided on one side of the slide bar, a filter screen is fixedly connected to one side of the docking bar, and a pull bar is fixedly connected to the side of the filter screen away from the docking bar.

[0008] Specifically, the replacement mechanism also includes a pull ring, two pull rings are slidably connected to the docking strip, and a limit bar is slidably connected to the inside of each of the two ends of the docking strip. One semicircular end of the limit bar is slidably connected to the slide bar, a third spring is wound around the limit bar, and the third spring is in contact with the limit bar. A connecting strip is connected between the limit bar and the pull ring.

[0009] Specifically, the placement mechanism includes a sliding tube, which is slidably connected to the main body, the interior of the sliding tube is hollow, the top of the sliding tube is fixedly connected to a placement plate, the sliding tube is provided with a first connecting groove and a second connecting groove, a reset ring is sleeved on the sliding tube, the reset ring and the sliding tube are slidably connected, and a torsion spring is connected between the reset ring and the main body.

[0010] Specifically, the placement mechanism also includes a suction cup, the bottom end of the main body is connected to the suction cup, the top end of the suction cup is rotatably connected to a one-way plate, a fourth spring is in contact between the main body and the sliding tube, a one-way ball is slidably connected in the sliding tube, a fifth spring is in contact with the one-way ball, an exhaust pipe is provided on one side of the sliding tube, the bottom end of the exhaust pipe extends to the interior of the suction cup, and a circular ring is provided at the bottom end of the main body.

[0011] Specifically, the limiting mechanism includes a pressing block, which is provided between the shell and the main body, the pressing block is slidably connected to the main body, the pressing block is engaged on the shell, and a sixth spring is in contact between the pressing block and the main body.

[0012] Specifically, the limiting mechanism also includes a slide groove, the pressing block is provided with a slide groove, a plurality of triangular blocks with triangular cross-sections are provided in the slide groove, a limiting rod is slidably connected in the slide groove, and the other end of the limiting rod is rotatably connected to the main body.

[0013] The beneficial effects of the present invention are:

[0014] (1) The installation mechanism is provided to facilitate automatic resetting of the replacement mechanism, which makes it convenient for the user to install the filter component without removing the outer shell, thereby reducing the number of operation steps; the replacement mechanism is provided to facilitate rapid docking and installation of the filter component on the installation mechanism, thereby improving replacement efficiency.

[0015] (2) By setting up the placement mechanism, it is convenient to temporarily fix the main body, prevent the equipment from being accidentally touched and tipped over, and improve the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0018] Figure 2 for Figure 1 The structural schematic diagram of the installation mechanism shown;

[0019] Figure 3 for Figure 1 An enlarged schematic diagram of part A is shown;

[0020] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown;

[0021] Figure 5 for Figure 3 A schematic diagram of the connection structure of the installation mechanism and the replacement mechanism shown;

[0022] Figure 6 for Figure 5 An enlarged schematic diagram of part C is shown;

[0023] Figure 7 for Figure 5 An enlarged schematic diagram of the D portion shown;

[0024] Figure 8 for Figure 1 The structural schematic diagram of the placement mechanism shown;

[0025] Fig. 9 for Figure 8 An enlarged schematic diagram of part E is shown;

[0026] Fig.10 for Figure 8 An enlarged schematic diagram of part F is shown.

[0027] In the figure: 1, main body, 2, shell, 3, installation mechanism, 31, winding disk, 32, first rotating shaft, 33, clockwork, 34, winding belt, 35, slide bar, 36, first spring, 37, limit block, 38, second spring, 39, auxiliary block, 4, replacement mechanism, 41, docking strip, 42, filter screen, 43, pull strip, 44, pull ring, 45, connecting strip, 46, limit strip, 47, third spring, 5, placement mechanism , 51, gasket, 52, suction cup, 53, exhaust pipe, 54, slide pipe, 55, one-way plate, 56, fourth spring, 57, one-way ball, 58, fifth spring, 59, first connecting groove, 59a, reset ring, 59b, torsion spring, 59c, second connecting groove, 59d, placement plate, 6, limiting mechanism, 61, pressing block, 62, sixth spring, 63, limiting rod, 64, slide groove, 65, triangular block, 7, opening and closing plate. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1-Figure 10 As shown, an air purifier described in the present invention includes a main body 1, to which a shell 2 is detachably connected, a mounting mechanism 3 is provided between the main body 1 and the shell 2, a replacement mechanism 4 is detachably connected to the mounting mechanism 3, a placement mechanism 5 is provided inside the main body 1, a limiting mechanism 6 is provided between the shell 2 and the main body 1, and an opening and closing plate 7 is rotatably connected to the shell 2.

[0030] Specifically, the mounting mechanism 3 includes a winding disk 31, the winding disk 31 is rotatably connected inside the main body 1, a first rotating shaft 32 is provided in the middle of the winding disk 31, the first rotating shaft 32 is fixedly connected to the inside of the main body 1, a spring 33 is wound between the first rotating shaft 32 and the winding disk 31, a winding belt 34 is wound around the outside of the main body 1, one end of the winding belt 34 is wound around the winding disk 31, and the other end of the winding belt 34 is fixedly connected to a slide bar 35, and the slide bar 35 is slidably connected between the main body 1 and the outer shell 2.

[0031] Specifically, the mounting mechanism 3 also includes a limit block 37, and the two ends of the slide bar 35 are respectively slidably connected with a limit block 37, one semicircular end of the limit block 37 is engaged on the main body 1, and one end of the limit block 37 is in contact with a first spring 36, and an auxiliary block 39 is provided on one side of the limit block 37, and the auxiliary block 39 is slidably connected to the main body 1, and a second spring 38 is provided on one side of the auxiliary block 39, and one end of the second spring 38 is fixedly connected to the inner wall of the main body 1.

[0032] Specifically, the replacement mechanism 4 includes a docking bar 41 . The docking bar 41 is disposed on one side of the slide bar 35 . A filter screen 42 is fixedly connected to one side of the docking bar 41 . A pull bar 43 is fixedly connected to the side of the filter screen 42 facing away from the docking bar 41 .

[0033] Specifically, the replacement mechanism 4 also includes a pull ring 44, two pull rings 44 are slidably connected to the docking strip 41, and a limit strip 46 is slidably connected to the two ends of the docking strip 41, and one end of the limit strip 46 is slidably connected to the slide bar 35, and a third spring 47 is wound around the limit strip 46, and the third spring 47 abuts against the limit strip 46, and a connecting strip 45 is connected between the limit strip 46 and the pull ring 44; when it is necessary to replace the filter 42 of the air purifier, first open the opening and closing plate 7 to expose the pull strip 43 at one end of the filter 42, hold the pull strip 43 and apply a suitable force to it, so that the filter 42 originally wrapped around the air inlet of the main body 1 can be replaced. 2 is pulled out, one end of the filter screen 42 is connected to the docking strip 41, and the docking strip 41 is detachably connected to the slide bar 35 through the limit strip 46. When the slide bar 35 is dragged to a position close to the opening and closing plate 7, the two limit blocks 37 on the slide bar 35 pop out and snap onto the main body 1 under the reset of the first spring 36, thereby playing a role in temporarily limiting and fixing the slide bar 35, making it convenient for the new filter screen 42 to be installed inside the main body 1 in the later stage to achieve the effect of rapid replacement. After that, the old filter screen 42 needs to be removed, and the two pull rings 44 are operated to make the two close to each other. The pull ring 44 and the limit strip 46 are connected by the The connecting strips 45 are connected together, and the pull ring 44 triggers the limit strip 46 to retract into the inside of the docking strip 41 while moving, thereby achieving the effect of quick disassembly. When installing the new filter screen 42, since the end of the limit strip 46 is set in a semicircular shape, the docking strip 41 can be directly placed on the slide bar 35, and the limit strip 46 automatically snaps into the slide bar 35 during the reset of the third spring 47, thereby completing the installation purpose of the new filter screen 42. Then, the filter screen 42 needs to be installed on the main body 1. It is only necessary to pull the pull strip 43 to trigger the slide bar 35 to move outward, so that the limit block 37 passes over the auxiliary block 39. At this time, the main The spring 33 inside the body 1 causes the winding disk 31 to rotate and wind around the winding belt 34 during the reset process. One end of the winding belt 34 is connected to the slide bar 35, and the auxiliary block 39 is pushed to move and contact the second spring 38 through the limit block 37. Finally, the limit block 37 is retracted to the inside of the slide bar 35 through the auxiliary block 39. The slide bar 35 is no longer in the restricted position. The spring 33 smoothly resets the slide bar 35, and the filter screen 42 is retracted between the main body 1 and the shell 2 for installation, so that the filter screen 42 can be replaced and installed quickly and conveniently. The docking and removal are convenient, the operation steps are simplified, the replacement efficiency is improved, and the quality of the purified air is guaranteed.

[0034] Specifically, the placement mechanism 5 includes a sliding tube 54, which is slidably connected to the main body 1. The interior of the sliding tube 54 is hollow, and a placement plate 59d is fixedly connected to the top of the sliding tube 54. The sliding tube 54 is provided with a first connecting groove 59 and a second connecting groove 59c. A reset ring 59a is sleeved on the sliding tube 54. The reset ring 59a and the sliding tube 54 are slidably connected, and a torsion spring 59b is connected between the reset ring 59a and the main body 1.

[0035] Specifically, the placement mechanism 5 also includes a suction cup 52, the bottom end of the main body 1 is connected to the suction cup 52, the top of the suction cup 52 is rotatably connected to a one-way plate 55, a fourth spring 56 is in contact between the main body 1 and the slide tube 54, a one-way ball 57 is slidably connected in the slide tube 54, a fifth spring 58 is in contact with the one-way ball 57, an exhaust pipe 53 is provided on one side of the slide tube 54, the bottom end of the exhaust pipe 53 extends to the inside of the suction cup 52, and a circular ring 51 is provided at the bottom end of the main body 1; when the main body 1 needs to be temporarily fixed, the exhaust pipe 53 can be installed on the bottom end of the main body 1. When fixing the main body 1, first press the main body 1 to the position so that the suction cup 52 is in full contact with the ground, then hold the placement plate 59d, and drive the slide tube 54 to slide back and forth through the placement plate 59d. When the slide tube 54 moves at the top, the active area space between the slide tube 54 and the main body 1 becomes a negative pressure state, then the one-way plate 55 rotatably connected to the suction cup 52 deflects, so that the air in the suction cup 52 is pumped to the bottom end of the slide tube 54 for gathering, and then the slide tube 54 is operated. When moving toward the bottom, the pressure increases and starts to impact the one-way ball 57 to escape into the inside of the slide tube 54. This reciprocating process can reduce the air inside the suction cup 52, so that the suction cup 52 can be firmly adsorbed on the ground, thereby preventing the main body 1 from being accidentally touched and tipped over, avoiding hurting children, and improving the safety of the device. When it is necessary to move the main body 1, it is only necessary to rotate the placement plate 59d to connect the second connecting groove 59c on the slide tube 54 to the exhaust pipe 53, so that the suction cup 52 and The outside world is connected so that the suction cup 52 generates suction, which facilitates the movement of the main body 1. The reset ring 59a is sleeved on the slide tube 54. The torsion spring 59b is connected between the reset ring 59a and the main body 1 to reset the slide tube 54 and prepare for the next adsorption and fixation of the suction cup 52. The bottom end of the main body 1 is provided with an elastic gasket 51, which provides ample space for the suction cup 52. The placement plate 59d is convenient for placing ornaments on it, thereby improving the utilization rate of home space.

[0036] Specifically, the limiting mechanism 6 includes a pressing block 61, a pressing block 61 is provided between the shell 2 and the main body 1, the pressing block 61 is slidably connected to the main body 1, the pressing block 61 is engaged on the shell 2, and a sixth spring 62 is in contact between the pressing block 61 and the main body 1.

[0037] Specifically, the limiting mechanism 6 also includes a slide groove 64, the pressing block 61 is provided with a slide groove 64, and a plurality of triangular blocks 65 with triangular cross-sections are provided in the slide groove 64, and a limiting rod 63 is slidably connected in the slide groove 64, and the other end of the limiting rod 63 is rotatably connected to the main body 1; when the main body 1 needs to be maintained, it is only necessary to press the pressing block 61, and while the pressing block 61 moves into the inside of the main body 1, one end of the limiting rod 63 is engaged with another position of the slide groove 64, thereby limiting the pressing block 61 from shrinking. Inside the main body 1, the shell 2 is no longer limited and can be opened and removed. When installing the shell 2, it is only necessary to align the hole on the shell 2 with the position of the pressing block 61 and press the pressing block 61 again to reset the limiting rod 63. The sixth spring 62 pushes the pressing block 61 to reset and limit the shell 2, thereby completing the installation of the shell 2. A plurality of triangular blocks 65 are provided inside the slide groove 64. The triangular blocks 65 ensure that the limiting rod 63 can only move in one direction.

[0038] When the present invention is in use, when it is necessary to replace the filter 42 of the air purifier, first open the opening and closing plate 7 to expose the pull bar 43 at one end of the filter 42, and then hold the pull bar 43 and apply a suitable force to it to pull it, so that the filter 42 originally wrapped around the air inlet of the main body 1 can be pulled out, and one end of the filter 42 is connected to a docking strip 41, and the docking strip 41 is detachably connected to the slide bar 35 through a limit strip 46. When the slide bar 35 is dragged to a position close to the opening and closing plate 7, the two limit blocks 37 on the slide bar 35 are in the first The spring 36 is reset and popped out to engage with the main body 1, thereby playing the role of temporarily limiting and fixing the slide bar 35, so that the new filter screen 42 can be installed inside the main body 1 at a later time, so as to achieve the effect of quick replacement. After that, the old filter screen 42 needs to be removed, and the two pull rings 44 are operated to make the two close to each other. The pull ring 44 and the limit strip 46 are connected together by the connecting strip 45. When the pull ring 44 moves, it triggers the limit strip 46 to retract into the inside of the docking strip 41, so as to achieve the effect of quick disassembly. During installation, since the end of the limit bar 46 is semicircular, the docking bar 41 can be directly placed on the slide bar 35. The limit bar 46 automatically engages with the slide bar 35 during the reset of the third spring 47, thereby completing the installation of the new filter 42. Then, the filter 42 needs to be installed on the main body 1. It is only necessary to pull the pull bar 43 to trigger the slide bar 35 to move outward, so that the limit block 37 passes over the auxiliary block 39. At this time, the spring 33 inside the main body 1 causes the winding disk 31 to rotate and wind the winding belt 34 since it is reset. , one end of the winding belt 34 is connected to the slide bar 35, and the auxiliary block 39 is pushed to move and contact the second spring 38 through the limit block 37. Finally, the limit block 37 is retracted to the inside of the slide bar 35 through the auxiliary block 39, and the slide bar 35 is no longer in the limited position. Then the spring 33 smoothly acts on the slide bar 35 to reset, and the associated filter screen 42 is retracted between the main body 1 and the shell 2 for installation, so that the filter screen 42 can be replaced and installed quickly, and the docking and removal are convenient, the operation steps are simplified, the replacement efficiency is improved, and the quality of the purified air is guaranteed;When the main body 1 needs to be temporarily fixed, the main body 1 is first pressed to the position so that the suction cup 52 is in full contact with the ground. Then, the placement plate 59d is held and the slide tube 54 is driven to slide back and forth through the placement plate 59d. When the slide tube 54 moves at the top, the space in the active area between the slide tube 54 and the main body 1 becomes a negative pressure state, and the one-way plate 55 rotatably connected to the suction cup 52 deflects, so that the air in the suction cup 52 is pumped to the bottom end of the slide tube 54 for gathering. Then, when the slide tube 54 is operated to move to the bottom end, the pressure increases. , and starts to impact the one-way ball 57 to escape into the interior of the slide tube 54. This reciprocating process can reduce the air inside the suction cup 52, so that the suction cup 52 can be firmly adsorbed on the ground, thereby preventing the main body 1 from being accidentally touched and tipped over, avoiding hurting children, and improving the safety of the device. When it is necessary to move the main body 1, it is only necessary to rotate the placement plate 59d to connect the second connecting groove 59c on the slide tube 54 to the exhaust pipe 53, so that the suction cup 52 is connected to the outside world, so that the suction cup 52 generates suction, which is convenient for the movement of the main body 1. There is a reset ring 59a, and a torsion spring 59b is connected between the reset ring 59a and the main body 1, which plays a role in resetting the slide tube 54, so as to prepare for the next suction and fixation of the suction cup 52. An elastic gasket 51 is provided at the bottom of the main body 1, and the gasket 51 provides ample space for the suction cup 52. The setting of the placement plate 59d is convenient for placing ornaments on it, thereby improving the utilization rate of the family space. When the main body 1 needs to be maintained, it is only necessary to press the pressing block 61. When the pressing block 61 moves toward the inside of the main body 1, one end of the limit rod 63 is engaged with the slide groove. 64, thereby limiting the pressing block 61 from shrinking inside the main body 1. At this time, the shell 2 is no longer limited, and the shell 2 can be opened and removed. When installing the shell 2, it is only necessary to align the hole on the shell 2 with the position of the pressing block 61, and press the pressing block 61 again, so that the limiting rod 63 is reset. The sixth spring 62 pushes the pressing block 61 to reset the limiting shell 2 during the reset, and the installation of the shell 2 is completed. A plurality of triangular blocks 65 are arranged inside the slide 64, and the triangular blocks 65 ensure that the limiting rod 63 can only move in one direction. ;

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An air purifier, characterized in that: The device comprises a main body (1), a shell (2) being detachably connected to the main body (1), a mounting mechanism (3) being provided between the main body (1) and the shell (2), a replacement mechanism (4) being detachably connected to the mounting mechanism (3), a placement mechanism (5) being provided inside the main body (1), a limiting mechanism (6) being provided between the shell (2) and the main body (1), and an opening and closing plate (7) being rotatably connected to the shell (2); The mounting mechanism (3) comprises a winding disk (31), the winding disk (31) is rotatably connected inside the main body (1), a first rotating shaft (32) is provided in the middle of the winding disk (31), the first rotating shaft (32) is fixedly connected inside the main body (1), a spring (33) is wound between the first rotating shaft (32) and the winding disk (31), a winding belt (34) is wound around the outside of the main body (1), one end of the winding belt (34) is wound around the winding disk (31), the other end of the winding belt (34) is fixedly connected to a sliding bar (35), and the sliding bar (35) is slidably connected between the main body (1) and the housing (2); The mounting mechanism (3) further comprises a limit block (37), each of the two ends of the slide bar (35) being slidably connected to a limit block (37), one end of the limit block (37) being semicircular and snapped onto the main body (1), one end of the limit block (37) being in contact with a first spring (36), an auxiliary block (39) being provided on one side of the limit block (37), the auxiliary block (39) being slidably connected to the main body (1), a second spring (38) being provided on one side of the auxiliary block (39), one end of the second spring (38) being fixedly connected to the inner wall of the main body (1); The replacement mechanism (4) comprises a docking strip (41), one side of the slide bar (35) is provided with the docking strip (41), one side of the docking strip (41) is fixedly connected to a filter screen (42), and the side of the filter screen (42) facing away from the docking strip (41) is fixedly connected to a pull strip (43); The replacement mechanism (4) further comprises a pull ring (44), two pull rings (44) are slidably connected to the docking strip (41), a limit strip (46) is slidably connected to each of the two ends of the docking strip (41), one end of the limit strip (46) is slidably connected to the slide bar (35), a third spring (47) is wound around the limit strip (46), the third spring (47) abuts against the limit strip (46), and a connecting strip (45) is connected between the limit strip (46) and the pull ring (44); The placement mechanism (5) comprises a slide tube (54), the slide tube (54) is slidably connected inside the main body (1), the interior of the slide tube (54) is hollow, a placement plate (59d) is fixedly connected to the top of the slide tube (54), a first connecting groove (59) and a second connecting groove (59c) are formed on the slide tube (54), a reset ring (59a) is sleeved on the slide tube (54), the reset ring (59a) and the slide tube (54) are slidably connected, and a torsion spring (59b) is connected between the reset ring (59a) and the main body (1); The placement mechanism (5) further comprises a suction cup (52), the bottom end of the main body (1) is connected to the suction cup (52), the top end of the suction cup (52) is rotatably connected to a one-way plate (55), a fourth spring (56) is abutted between the main body (1) and the slide tube (54), a one-way ball (57) is slidably connected inside the slide tube (54), a fifth spring (58) is abutted on the one-way ball (57), an exhaust pipe (53) is provided on one side of the slide tube (54), the bottom end of the exhaust pipe (53) extends into the interior of the suction cup (52), and a circular ring (51) is provided at the bottom end of the main body (1); The limiting mechanism (6) comprises a pressing block (61), the pressing block (61) being provided between the shell (2) and the main body (1), the pressing block (61) being slidably connected to the main body (1), the pressing block (61) being snap-fitted onto the shell (2), and a sixth spring (62) being in contact between the pressing block (61) and the main body (1).

2. An air purifier according to claim 1, characterized in that: The limiting mechanism (6) further comprises a slide groove (64), the pressing block (61) is provided with a slide groove (64), a plurality of triangular blocks (65) with triangular cross-sections are provided in the slide groove (64), a limiting rod (63) is slidably connected in the slide groove (64), and the other end of the limiting rod (63) is rotatably connected to the main body (1).

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