CN219415116U - Air purifier - Google Patents

Abstract

The utility model discloses an air purifier which comprises a purifier main body, a UV lamp, a purification module and a base, wherein the purification module and the base are detachably connected with the purifier main body, a primary trigger switch and a secondary trigger switch which are both connected with a control circuit of the UV lamp are arranged on the purifier main body, and when the purification module and the base are both installed in place, the primary trigger switch and the secondary trigger switch are respectively triggered to be connected with the control circuit of the UV lamp. The air purifier is provided with the two-stage trigger switch which is connected to the control circuit of the UV lamp, and the two-stage trigger switch is required to be triggered and connected after being installed in place by the purification module and the base, so that the UV lamp can be effectively prevented from being switched on by mistake when the purification module is replaced, and the safety is ensured; the primary trigger switch is reasonable in structure, ingenious in design and convenient to assemble and disassemble, the primary micro switch can be conducted by the purification module within a certain size range, the requirement on the size precision of the purification module is low, and the UV lamp circuit is conducted when the purification module is installed in place.

Description

Air purifier

Technical Field

The utility model relates to the technical field of air purification, in particular to an air purifier.

Background

The air purifier is also called as an air cleaner, an air freshener and a purifier, and is a product capable of adsorbing, decomposing or converting various air pollutants and effectively improving the air cleanliness. The prior air purifier is generally used by being matched with the UV lamp, the purifying effect is better, the purifying module inside the air purifier is generally designed to be detachable and replaceable, and when the purifying module is replaced, the UV lamp inside the air purifier is required to be in a closed state so as to avoid damage to a human body caused by the UV lamp. In view of this, the present inventors have discovered an air purifier that ensures that the UV lamp is not turned on when the purification module is replaced, ensuring safety.

In view of this, the present inventors have discovered an air purifier.

Disclosure of Invention

The utility model aims to provide an air purifier which can ensure that a UV lamp is not turned on by mistake when a purification module is replaced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an air purifier, includes purifier main part, UV lamp, all can dismantle purification module and the base of being connected with the purifier main part, be equipped with the one-level trigger switch, the second grade trigger switch that all are connected with the control circuit of UV lamp in the purifier main part, when purification module and base all install in place, trigger one-level trigger switch, second grade trigger switch respectively in order to switch on the control circuit of UV lamp.

Further, the purifier main body is provided with an installation upper end corresponding to the top end of the purification module, the primary trigger switch is installed at the installation upper end, and the bottom end of the primary trigger switch is provided with a first trigger part propped against the top end of the purification module.

Further, the installation upper end is equipped with the fan housing, one-level trigger switch installs in the fan housing, the fan housing corresponds first trigger part is equipped with the hole of stepping down, first trigger part pass the hole of stepping down with purification module offsets.

Further, the one-level trigger switch includes fixing base, connecting seat and one-level micro-gap switch, the connecting seat sets up on the fixing base, just the connecting seat can be for the fixing base up-and-down motion, one-level micro-gap switch installs on the connecting seat, one-level micro-gap switch includes the first contact swing arm that can swing from top to bottom, be equipped with the elastic component that can take place deformation in vertical direction between connecting seat and the fixing base, first trigger part sets up the bottom of connecting seat.

Further, the connecting seat is provided with a guide post extending upwards, the fixing seat is provided with a connecting hole corresponding to the guide post, the top end of the guide post movably penetrates through the connecting hole, the elastic piece is a spring, and the spring is sleeved on the periphery of the guide post.

Further, the base is provided with a rotatable second triggering part, the second triggering switch comprises a second micro switch, the second micro switch comprises a second contact swing arm capable of swinging up and down, and when the second triggering part rotates in place, the second triggering part triggers the second contact swing arm to swing so as to switch on the second micro switch.

Further, the second-stage trigger switch comprises a driving piece capable of moving up and down and an elastic reset piece, the bottom end of the driving piece is propped against the second trigger part, the top end of the driving piece is propped against the second contact swing arm, the top end of the elastic reset piece is connected with the driving piece, and the bottom end of the elastic reset piece is connected with the purifier main body.

Further, the purifier main body comprises a positioning piece, the second triggering part is arranged on the positioning piece, a vertically arranged chute is arranged on the positioning piece, the driving piece is slidably installed in the chute, and the bottom end of the elastic resetting piece is connected with the positioning piece.

Further, the base comprises a positioning groove matched with the bottom end of the positioning piece, the positioning piece is provided with a jack corresponding to the second triggering part, the bottom end of the driving piece corresponds to the jack, and the second triggering part rotationally stretches into or withdraws from the jack relative to the base.

Further, the base is provided with a rotary ring, the rotary ring is provided with a rotary driving part exposed out of the base, the rotary ring is provided with a second triggering part and a plurality of clamping protrusions along the circumferential direction of the rotary ring, and the purifier body is provided with limiting blocks corresponding to the clamping protrusions one by one.

After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:

the air purifier is provided with the two-stage trigger switch which is connected to the control circuit of the UV lamp, and the two-stage trigger switch is required to be triggered and connected after being installed in place by the purification module and the base, so that the UV lamp can be effectively prevented from being switched on by mistake when the purification module is replaced, and the safety is ensured; in addition, the primary trigger switch is reasonable in structure, ingenious in design and convenient to assemble and disassemble, the primary micro switch can be conducted through the connecting seat and the elastic piece in the purification module within a certain size range, the requirement on the size precision of the purification module is low, and the UV lamp circuit is conducted when the purification module is installed in place.

Drawings

FIG. 1 is a partial perspective view of an air purifier according to an embodiment of the present utility model;

FIG. 2 is a perspective view of an air purifier according to an embodiment of the present utility model with a partially concealed housing;

FIG. 3 is another perspective view of the structure of FIG. 2;

FIG. 4 is a side view of the structure shown in FIG. 2;

FIG. 5 is an exploded view of the structure shown in FIG. 2;

FIG. 6 is a perspective view of a primary trigger switch according to an embodiment of the present utility model;

FIG. 7 is a perspective view of another view of the primary trigger switch according to an embodiment of the present utility model;

FIG. 8 is an exploded view of a primary trigger switch according to an embodiment of the present utility model;

FIG. 9 is a schematic view of an outer shell of an embodiment of the present utility model;

fig. 10 is an exploded view of a base according to an embodiment of the present utility model.

Reference numerals illustrate:

a 10-UV lamp, which is used to illuminate the substrate,

a 20-degree of freedom (20-degree of freedom) of the purification module,

30-a base, wherein the base is provided with a plurality of grooves,

31-a second trigger portion, which is provided on the first trigger portion,

a 32-positioning groove is arranged on the bottom of the groove,

33-a rotating ring, 331-a rotation driving part,

a 40-level trigger switch,

41-fixing base, 411-screw hole, 412-connecting hole, 413-guide groove,

42-connecting seat, 421-first trigger part, 422-guide post, 423-guide flange, 424-hook, 425-slot, 426-mounting post,

43-primary micro-switch, 431-first contact swing arm, 432-mounting hole,

44-the elastic member(s),

a 50-level two-level trigger switch,

51-second-stage micro-switch, 511-second contact swing arm,

52-a driving member, which is provided with a plurality of driving members,

53-an elastic return element, which is arranged on the upper part of the frame,

a 60-part of the fan cover,

61-a hole for giving way to the hole,

a 70-a positioning piece, wherein the positioning piece is provided with a plurality of positioning holes,

71-a chute, wherein the chute is provided with a plurality of grooves,

an 80-the outer shell of the device,

81-limiting blocks.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that, in the present utility model, terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element of the present utility model must have a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

As shown in fig. 1 to 10, the present utility model discloses an air purifier having a UV lamp 10 therein, and ensuring safety by preventing the UV lamp 10 from being turned on when the purifier module is replaced, thereby avoiding injury to human body.

With reference to fig. 1 to 10, an air purifier comprises a purifier main body (only the lower half part is schematically shown in the figure), a UV lamp 10, a purification module 20 and a base 30, wherein the purification module 20 and the base 30 are detachably connected with the purifier main body, a primary trigger switch 40 and a secondary trigger switch 50 are arranged on the purifier main body, and the primary trigger switch 40 and the secondary trigger switch 50 are respectively triggered to switch on the control circuit of the UV lamp 10 when the purification module 20 and the base 30 are installed in place.

The UV lamp 10 is located inside the purifier body, and the UV lamp 10 is simultaneously turned on when the purifier works, so that a better purifying effect is achieved. The UV lamp 10 is connected to a control circuit (the control circuit is arranged in the purifier), a control switch capable of controlling the opening and closing of the UV lamp 10 is arranged outside the purifier, and when the control circuit is conducted, the UV lamp 10 can be opened and closed through the control switch.

The purification module 20, i.e., the portion of the air purifier that purifies the air, is typically of a removable design, and is convenient for the user to replace it periodically. The purification module 20 is generally a cylindrical filter screen, which contains several layers of filter layers, having a certain thickness. The purification module 20 is usually installed at the lower part of the air purifier, the position of the purifier main body corresponding to the top end of the purification module 20 is the installation upper end, and the position corresponding to the bottom end of the purification module 20 is the installation lower end, that is, the purification module 20 is correspondingly installed between the installation upper end and the installation lower end.

The base 30 is also detachably fixed to the purifier body, which forms the mounting lower end of the purification module 20, i.e. the bottom end of the purification module 20 is also fixed when the base 30 is mounted in place.

The primary trigger switch 40 and the secondary trigger switch 50 are connected in series on the control circuit of the UV lamp 10, and when the primary trigger switch 40 and the secondary trigger switch 50 are triggered to be conducted, the control circuit of the UV lamp 10 is turned on, and at the moment, the UV lamp 10 can be turned on and off through an external control switch. Specifically, when the purification module 20 is installed in place, the primary trigger switch 40 is turned on, and when the bottom cover is installed in place, the secondary trigger switch 50 is turned on, so that the control circuit of the UV lamp 10 is turned on only when the purification module 20 and the bottom cover are all installed in place, the UV lamp 10 can be turned on and off through the control switch, double guarantee is achieved through the two-stage trigger switch, the UV lamp 10 is ensured not to be turned on by mistake when the purification module 20 is replaced, and safety is strictly ensured.

Referring to fig. 1 to 5, in this embodiment, the primary trigger switch 40 is specifically installed as follows:

the purifier main body has the installation upper end corresponding to the top of the purification module 20, the primary trigger switch 40 is installed at the installation upper end, and the bottom of the primary trigger switch 40 is provided with a first trigger portion 421 propped against the top of the purification module 20.

The purifier body has an installation upper end corresponding to the top end of the purification module 20, and an installation lower end corresponding to the bottom end of the purification module 20, i.e., between the installation upper end and the installation lower end of the purification module 20. The bottom end of the primary trigger switch 40 is provided with a first trigger part 421 propped against the top end of the purification module 20, when the purification module 20 is installed in place, the top end of the first purification module 20 is propped against the first trigger part 421 to trigger the primary trigger switch 40 to conduct a circuit, and when the purification module 20 is replaced, the first trigger part 421 is not propped against to trigger, and the primary trigger switch 40 is in a circuit breaking state.

The upper end of the installation is provided with a fan housing 60, the primary trigger switch 40 is installed in the fan housing 60, the fan housing 60 is provided with a yielding hole 61 corresponding to the first trigger portion 421, and the first trigger portion 421 passes through the yielding hole 61 to be abutted against the purification module 20.

The air intake of the air cleaner is typically located at a lower sidewall thereof, and is filtered by the purification module 20 (typically a cylindrical filter screen) after entering the inside through the air intake, and the filtered air is upwardly passed through the hood 60 and finally outputted from the upper portion of the air cleaner. The primary trigger switch 40 is installed in the fan housing 60, and the assembly is convenient. The first triggering portion 421 is movably disposed in the yielding hole 61, and the first triggering portion 421 is always disposed in the connecting hole 412 when the connecting seat 42 moves up and down.

As shown in fig. 1 to 8, in this embodiment, the specific structure of the primary trigger switch 40 is as follows:

the primary trigger switch 40 comprises a fixed seat 41, a connecting seat 42 and a primary micro switch 43, wherein the connecting seat 42 is arranged on the fixed seat 41, the connecting seat 42 can move up and down relative to the fixed seat 41, the primary micro switch 43 is arranged on the connecting seat 42, the primary micro switch 43 comprises a first contact swing arm 431 capable of swinging up and down, an elastic piece 44 capable of deforming in the vertical direction is arranged between the connecting seat 42 and the fixed seat 41, and the first trigger portion 421 is arranged at the bottom end of the connecting seat 42.

The fixing base 41 is preferably a plastic piece, and the fixing base 41 is used for fixedly mounting the whole primary trigger switch 40. In this embodiment, the fixing base 41 is provided with a screw hole 411, and the primary trigger switch 40 is mounted and fixed on the fan housing 60 through the screw hole 411.

The connecting seat 42 is preferably a plastic member, and is used for installing and fixing the primary micro-switch 43, and is movably installed on the fixed seat 41, and the connecting seat 42 can reciprocate up and down relative to the fixed seat 41, and drives the primary micro-switch 43 to reciprocate up and down.

The first contact swing arm 431 (actually, a metal spring sheet) may swing, far away from or near the primary micro switch 43, so that the contacts inside the primary micro switch 43 are separated or contacted to connect or disconnect the circuit, and the micro switch is in the prior art, and the specific structure and principle thereof are not described herein.

It should be noted that, the micro switch has two modes corresponding to different installation modes, and the first mode is: the contact swing arm swings to be close to the micro switch, two contacts in the contact swing arm are contacted, a circuit is connected, and otherwise, the contact swing arm swings to be far away from the micro switch, the two contacts are separated and disconnected, and the circuit is disconnected; the second mode is opposite to the first: the contact swing arm swings to be close to the micro switch, two contacts in the contact swing arm are separated and disconnected, a circuit is disconnected along with the contact swing arm, and otherwise, the two contacts are contacted, and the circuit is connected. In the present embodiment, the first-stage micro switch 43 is installed in the second mode.

The primary micro-switch 43 is a component of the primary trigger switch 40 that is actually connected in series in the control circuit of the UV lamp 10. The first contact swing arm 431 can swing up and down, the connecting seat 42 can move up and down relative to the fixed seat 41, the elastic piece 44 is arranged between the connecting seat 42 and the fixed seat 41 and can deform in the vertical direction, the connecting seat 42 reciprocates up and down relative to the fixed seat 41, the elastic piece 44 deforms along with the connecting seat 42, the first-stage micro switch 43 moves along with the connecting seat 42, when the first contact swing arm 431 receives an external force, the first-stage micro switch 43 moves close to the first-stage micro switch 43, an internal circuit of the first-stage micro switch 43 is disconnected, when the connecting seat 42 moves with the first-stage micro switch 43 to enable the first contact swing arm 431 to break away from the external force, the contact swing arm moves away from the micro switch to reset, and the internal circuit of the micro switch is connected.

The connecting seat 42 is provided with a guide post 422 extending upwards, the fixing seat 41 is provided with a connecting hole 412 corresponding to the guide post 422, the top end of the guide post 422 movably penetrates through the connecting hole 412, the elastic piece 44 is a spring, and the spring is sleeved on the periphery of the guide post 422. The guide post 422 has a certain limit guide effect on the spring, so that the spring cannot deviate from the axis when the spring stretches out and draws back, and meanwhile, the installation problem of the spring is solved. Further, the first triggering portion 421 is coaxial with the guiding post 422 and is located on the connecting seat 42 near the free end (the end swinging up and down) of the first contact swing arm 431.

When the connecting seat 42 moves up and down relative to the fixing seat 41, the guide post 422 moves up and down in the connecting hole 412, and the guide post 422 is not separated from the connecting hole 412 all the time. The cooperation of the guide posts 422 and the connecting holes 412 plays a role in limiting and guiding the movement of the connecting seat 42, and also serves as a mounting and connecting structure between the connecting seat 42 and the fixing seat 41.

The first triggering portion 421 is movably disposed in the yielding hole 61, and the first triggering portion 421 is always disposed in the connecting hole 412 when the connecting seat 42 moves up and down. When the purification module 20 is installed in place, the first trigger part 421 pushes the connecting seat 42 upwards, so that the spring is compressed, the first contact swing arm 431 naturally swings downwards (the movement distance of the connecting seat 42 is far longer than the swing stroke of the first contact swing arm 431), and the primary micro switch 43 is in a circuit conduction state; when the purification module 20 is not installed or is not installed in place, the connecting seat 42 is reset downwards under the action of the spring, the first contact swing arm 431 contacts the fan housing 60 to swing upwards, and then the primary micro switch 43 is in a circuit breaking state.

The fixing seat 41 is provided with a guide groove 413 extending up and down, and the connecting seat 42 is provided with a guide convex edge 423 in sliding fit with the guide groove 413. When the connecting seat 42 moves up and down relative to the fixing seat 41, the guiding convex edge 423 moves up and down in the guiding groove 413, and the guiding convex edge 423 is not separated from the guiding groove 413 all the time. The guide slot 413 and the connecting hole 412 limit the movement of the guide connecting seat 42, so that the movement is more stable, and the guide connecting seat is also an installation connecting structure of the connecting seat 42 and the fixing seat 41, and has simple structure and convenient installation.

The connecting seat 42 is provided with two opposite hooks 424, a clamping groove 425 for matching and clamping the primary micro switch 43 is formed between the two hooks 424, the primary micro switch 43 is provided with a mounting hole 432, and a mounting column 426 corresponding to the mounting hole 432 is arranged in the clamping groove 425. The primary micro-switch 43 is clamped into the slot and is hooked by the two hooks 424, and meanwhile the mounting column 426 is correspondingly inserted into the mounting hole 432, so that the primary micro-switch 43 is mounted and fixed on the connecting seat 42, and the structure is simple and the dismounting is convenient.

The first triggering part 421 is abutted against the top end of the purification module 20, when the purification module 20 is installed in place, the connecting seat 42 is propped up to move upwards by the purification module 20, so that the elastic piece 44 is compressed, meanwhile, the first contact swing arm 431 is in a state of naturally moving downwards away from the primary micro switch 43 without external force, and the primary micro switch 43 is in a circuit conducting state; when the purification module 20 is not installed, the connection base 42 is reset downwards under the action of the elastic member 44, so that the first contact swing arm 431 contacts with the lower fan housing 60 to swing upwards to be close to the primary micro switch 43, and the primary micro switch 43 is in a circuit breaking state. Thus, when the purification module 20 is to be replaced, the purification module 20 is not installed in place, and the primary micro switch 43 (primary trigger switch 40) is in an off state; when the purge module 20 is replaced, the primary micro switch 43 (primary trigger switch 40) is turned on.

The contact distance of the micro switch is very small, so if the first contact swing arm 431 is directly driven to swing through the filter screen (the purification module 20) so that the primary micro switch 43 is turned on (this is a conventional design thought, and the primary micro switch 43 needs to adopt the first mode at this time), however, the size of the purification module 20 (the filter screen) has errors, and after a period of use, the purification module 20 may also deform, which may result in that even if the purification module 20 is installed in place, the first contact swing arm 431 of the primary micro switch 43 still does not swing enough stroke to turn on the primary micro switch 43. For this situation, the inventor skillfully installs the primary micro switch 43 in the second mode, and designs the fixing seat 41, the connecting seat 42 and the elastic piece 44 at the same time, and drives the connecting seat 42 to move through the purification module 20 installed in place, so as to ensure that the moving distance of the connecting seat 42 is far longer than the swinging stroke of the first contact swing arm 431, so that when the purification module 20 is installed in place, the first contact swing arm 431 is in a state of naturally keeping away from the micro switch downwards, and the micro switch is ensured to be in a circuit conducting state.

As shown in fig. 1 to 5 and fig. 9 to 10, in this embodiment, the specific installation and structure of the secondary trigger switch 50 is as follows:

the base 30 is provided with a rotatable second triggering part 31, the second triggering switch 50 comprises a second micro switch 51, the second micro switch 51 comprises a second contact swing arm 511 capable of swinging up and down, and when the second triggering part 31 rotates in place, the second triggering part 31 triggers the second contact swing arm 511 to swing so as to switch on the second micro switch 51.

In this embodiment, the base 30 is mounted at the bottom end of the purification module 20, and corresponds to the mounting lower end of the purifier main body corresponding to the bottom end of the purification module 20, the base 30 is mounted in place, the purification module 20 is also fixed (mounted in place, the purification module 20 is mounted in place upwards under the action of the base 30), and the connecting seat 42 is lifted upwards, so that the primary micro switch 43 is in a circuit conducting state). The second micro switch 51 is a component of the earphone trigger switch actually connected in series in the control circuit of the UV lamp 10, and when the base 30 and the second trigger portion 31 are installed in place, the second trigger portion 31 can trigger the second contact swing arm 511 to swing to turn on the second micro switch 51. And further, the second micro-switch 51 is in the second installation mode, that is, when the second contact swing arm 511 swings upwards to approach the second micro-switch 51, the second micro-switch 51 is in a circuit conducting state; when the second contact swing arm 511 swings downward away from the secondary micro switch 51, the secondary micro switch 51 is in a circuit-off state. The second-stage micro-switch 51 is only different from the first-stage micro-switch 43 in terms of installation, and other internal structures and principles are similar, and will not be described in detail herein.

The secondary trigger switch 50 includes a driving member 52 capable of moving up and down, and an elastic reset member 53, wherein the bottom end of the driving member 52 abuts against the second trigger portion 31, the top end of the driving member 52 abuts against the second contact swing arm 511, the top end of the elastic reset member 53 is connected with the driving member 52, and the bottom end of the elastic reset member 53 is connected with the purifier main body.

The bottom end of the driving piece 52 is propped against the second triggering part 31, the second triggering part 31 can rotate, the driving piece 52 can move up and down, when the second triggering part 31 rotates to prop against the bottom end of the driving piece 52, the driving piece 52 is jacked up, the elastic reset piece 53 is stretched, meanwhile, the top end of the driving piece 52 drives the second contact swing arm 511 to swing upwards, and the earphone micro switch is in a circuit conducting state; when the second trigger portion 31 rotates to disengage from the driving member 52, the driving member 52 descends and resets under the action of the elastic resetting member 53, the driving member 52 is disengaged from the second contact swing arm 511, the second contact swing arm 511 (metal spring plate) naturally swings downward, and the secondary micro switch 51 is in a circuit-off state.

The elastic reset piece 53 is a spring, both ends of the elastic reset piece 53 are provided with hooks, the top end of the elastic reset piece is hooked on the driving piece 52, the bottom end of the elastic reset piece is hooked on the purifier main body, when the driving piece 52 is jacked up by the second trigger part 31 to move upwards, the elastic reset piece 53 is stretched, and when the second trigger part 31 at the bottom end of the driving piece 52 is removed, the elastic reset piece 53 drives the driving piece 52 to move downwards to reset.

The purifier main body comprises a positioning piece 70, the second triggering part is arranged on the positioning piece 70, a vertically arranged chute 71 is arranged on the positioning piece 70, the driving piece 52 is slidably installed in the chute 71, and the bottom end of the elastic reset piece 53 is connected with the positioning piece 70.

The positioning member 70 has a long frame shape, and its top end is fixedly connected to the fan housing 60. The driving member 52 is installed in the chute 71 and moves up and down in the chute 71, and the secondary micro switch 51 is installed on the positioning member 70 and above the driving member 52 by a structure similar to that of the primary micro switch 43 through the installation hole 432 and the installation post 426. Further, the bottom end of the elastic restoring member 53 hooks the positioning member 70.

The base 30 includes a positioning groove 32 adapted to the bottom end of the positioning member 70, the positioning member 70 is provided with a jack corresponding to the second triggering portion 31, the bottom end of the driving member 52 corresponds to the jack, and the second triggering portion 31 rotationally extends into or exits from the jack relative to the base 30.

The design of the positioning groove 32 and the positioning piece 70 can realize the rapid positioning and installation of the base 30 and the positioning piece 70. When the second trigger part 31 is inserted into the jack in a rotating way, the second trigger part is jacked up by the bottom end of the driving piece 52, so that the secondary micro switch 51 is in a circuit conducting state; when the second trigger part 31 rotates to withdraw from the jack, the second trigger part is separated from the bottom end of the driving piece 52, and the driving piece 52 is reset downwards under the action of the elastic reset piece 53, so that the secondary micro switch 51 is in a circuit breaking state.

Further, the end of the second triggering portion 31 is wedge-shaped, so that the driving member 52 can be conveniently inserted into the insertion hole, and the bottom end of the driving member 52 is provided with a slope matched with the wedge-shaped end, so that the wedge-shaped end can conveniently jack up the driving member 52 through the slope.

The structure of the base 30 is specifically as follows: the base 30 is provided with a rotating ring 33, the rotating ring 33 has a rotating driving portion 331 exposed out of the base 30, the rotating ring 33 is provided with the second triggering portion 31 and a plurality of clamping protrusions along a circumferential direction thereof, and the purifier body is provided with limiting blocks 81 corresponding to the clamping protrusions one by one.

The rotary ring 33 can be driven to reciprocally rotate relative to the base 30 by the rotary driving portion 331, the second triggering portion 31 is disposed on the rotary ring 33, and the rotary ring 33 reciprocally rotates to drive the second triggering portion 31 to insert into or withdraw from the jack. Meanwhile, the clamping boss is also arranged on the rotating ring 33, the rotating ring 33 rotates reciprocally to drive the clamping boss to insert into or withdraw from the limiting block 81, the clamping boss is inserted into the limiting block 81, the base 30 and the purifier body are fixedly connected, the clamping boss withdraws from the limiting block 81, and the base 30 can be taken down from the purifier body.

Furthermore, the rotating ring 33 is disposed inside the base 30, the second triggering portion 31 and the locking protrusion are consistent in structure, and the base 30 is also provided with a positioning slot 32 corresponding to the locking protrusion, the positioning slot 32 is also consistent in structure with the positioning slot 32, and the second triggering portion 31/locking protrusion can be reciprocally rotated to retract into the base 30 or extend out into the positioning slot 32. Thus, when the base 30 is installed, any one of the positioning grooves 32 can be matched with the positioning piece 70, any one of the second triggering parts 31/clamping protrusions can be matched with the driving piece 52, the direction of the base 30 is not required to be considered, and the assembly is more convenient.

The purifier body includes a housing 80, the housing 80 is enclosed on the periphery of the purification module 20, and a plurality of air inlets are formed on the side wall of the housing. The top end of the housing 80 is locked and fixed with the fan housing 60, and the limiting block 81 is correspondingly disposed on the inner wall of the bottom end of the housing 80.

The process of replacing the purification module 20 (filter screen) of the air purifier is as follows: when the cleaning module is detached, the rotary driving part 331 is shifted to enable the clamping protrusion to be separated from the positioning block, the second triggering part 31 is separated from the driving piece 52, the driving piece 52 is reset downwards to be separated from the second contact swing arm 511, the second contact swing arm 511 naturally swings downwards, the second-level micro switch 51 is in a circuit disconnection state (the control circuit of the UV lamp 10 is in a disconnection state), then the base 30 and the cleaning module 20 can be detached from the cleaner main body in sequence, the cleaning module 20 is detached, the connecting seat 42 is reset downwards under the action of the elastic piece 44, the first contact swing arm 431 swings upwards when the fan cover 60 is contacted with the first-level micro switch 43, and the first-level micro switch 43 is in a circuit disconnection state;

during installation, the purification module 20 is installed inside, then the base 30 is installed through the positioning groove 32 and the positioning piece 70/the limiting block 81, meanwhile, the rotary driving part 331 is reversely shifted to enable the clamp to be clamped into the positioning block, the second triggering part 31 is inserted into the jack to enable the driving piece 52 to be jacked up upwards, at the moment, the second contact swing arm 511 swings the second-level micro switch 51 upwards to conduct a circuit, the purification module 20 is installed in place when the base 30 is installed in place, the connecting seat 42 is jacked up upwards, the first contact swing arm 431 swings down naturally, the first-level micro switch 43 is in a circuit conducting state, the first-level micro switch 43 and the second-level micro switch 51 are in a circuit conducting state, and the control circuit of the UV lamp 10 is also in a conducting state. So, when changing purification module 20, one-level micro-gap switch 43, second grade micro-gap switch 51 all are in the off state, then ensure that UV lamp 10 can not by the mistake open, guarantee safety, only when purification module 20 and base 30 all install in place, one-level micro-gap switch 43, second grade micro-gap switch 51 all are in the circuit on-state, UV lamp 10 control circuit just can be in the on-state, just can start and stop UV lamp 10 through external control switch, set up the two-stage trigger switch and further improve the security.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (10)

1. An air purifier, characterized in that: including purifier main part, UV lamp, all can dismantle purification module and the base of being connected with the purifier main part, be equipped with the one-level trigger switch, the second grade trigger switch that all are connected with the control circuit of UV lamp in the purifier main part, when purification module and base all install in place, trigger one-level trigger switch, second grade trigger switch respectively in order to switch on the control circuit of UV lamp.

2. An air cleaner as set forth in claim 1, wherein: the purifier main body corresponds the top of purification module and has installs the upper end, one-level trigger switch installs install the upper end, one-level trigger switch bottom is equipped with the first trigger portion that offsets with purification module's top.

3. An air cleaner according to claim 2 wherein: the installation upper end is equipped with the fan housing, one-level trigger switch installs in the fan housing, the fan housing corresponds first trigger part is equipped with the hole of stepping down, first trigger part pass the hole of stepping down with purification module offsets.

4. An air cleaner according to claim 2 or 3, wherein: the primary trigger switch comprises a fixed seat, a connecting seat and a primary micro switch, wherein the connecting seat is arranged on the fixed seat, the connecting seat can move up and down relative to the fixed seat, the primary micro switch is arranged on the connecting seat and comprises a first contact swing arm capable of swinging up and down, an elastic piece capable of deforming in the vertical direction is arranged between the connecting seat and the fixed seat, and the first trigger part is arranged at the bottom end of the connecting seat.

5. An air cleaner according to claim 4 wherein: the connecting seat is provided with a guide post extending upwards, the fixing seat is provided with a connecting hole corresponding to the guide post, the top end of the guide post movably penetrates through the connecting hole, the elastic piece is a spring, and the spring is sleeved on the periphery of the guide post.

6. An air cleaner as set forth in claim 1, wherein: the base is provided with a rotatable second triggering part, the second triggering switch comprises a second micro-switch, the second micro-switch comprises a second contact swing arm capable of swinging up and down, and when the second triggering part rotates in place, the second triggering part triggers the second contact swing arm to swing so as to be connected with the second micro-switch.

7. An air cleaner according to claim 6 wherein: the secondary trigger switch comprises a driving piece capable of moving up and down and an elastic reset piece, the bottom end of the driving piece is propped against the second trigger part, the top end of the driving piece is propped against the second contact swing arm, the top end of the elastic reset piece is connected with the driving piece, and the bottom end of the elastic reset piece is connected with the purifier main body.

8. An air cleaner according to claim 7 wherein: the purifier main body comprises a locating piece, the second triggering part is arranged on the locating piece, a vertically arranged chute is arranged on the locating piece, the driving piece is slidably installed in the chute, and the bottom end of the elastic resetting piece is connected with the locating piece.

9. An air cleaner according to claim 8 wherein: the base comprises a positioning groove matched with the bottom end of the positioning piece, a jack is arranged on the positioning piece corresponding to the second triggering portion, the bottom end of the driving piece corresponds to the jack, and the second triggering portion stretches into or withdraws from the jack relative to the base in a rotating mode.

10. An air cleaner according to claim 9 wherein: the base is provided with a rotary ring, the rotary ring is provided with a rotary driving part exposed out of the base, the rotary ring is provided with a second triggering part and a plurality of clamping protrusions along the circumferential direction of the rotary ring, and the purifier body is provided with limiting blocks corresponding to the clamping protrusions one by one.