CN217004806U - Air purifier - Google Patents

Abstract

The utility model relates to an air purifier, which comprises a body, a first air inlet, a second air inlet and a first air outlet, wherein the body is provided with a cavity with an opening at the front side; the filter screen can move back and forth and enters and exits the cavity from the opening of the machine body; the push rod is positioned on the moving path of the filter screen and can move back and forth; the driving piece is connected with the push rod. According to the utility model, the push rod and the driving part are arranged, when the filter screen is disassembled, the push rod moves forwards under the action of the driving part and pushes the filter screen outwards, so that the filter screen is not completely disassembled by manpower, labor is saved, and the disassembly is convenient.

Description

Air purifier

Technical Field

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

Background

With the increasingly prominent problem of air quality, purification equipment such as fresh air fans and air purifiers are used by more and more families, and filter screens (HEPA, activated carbon and the like) are used as core components for air/fresh air purification in a large quantity; the mode of placing of present filter screen subassembly in air purifier's complete machine is mainly the pull formula, and corresponding needs design on the filter screen subassembly corresponds the structure if: clasps, straps, and the like.

For example, a corrugated air purification device disclosed in the Chinese utility model with patent number CN201820032104.4 (publication number CN207962937U) comprises a corrugated purification plate, a frame, a sealing sponge, a fixing band and a ribbon handle; the corrugated purification plate is fixed in the frame, the frame is coated with sealing sponge, a fixing band is arranged outside the sealing sponge, the ribbon handle is located at the edge between the frame and the sealing sponge, and the corrugated purification plate and the frame in the corrugated purification device can be rapidly taken out and conveniently replaced by pulling the ribbon handle.

However, the purification apparatus has the following problems: 1. when the air purifier is disassembled, the air purifier needs to be pulled out by pulling the ribbon handle, the labor is wasted due to the action of manpower, and particularly, when the air purifier (namely a filter screen) is tightly matched with the air purifier, the pulling is more labor-wasting; 2. the silk ribbon handle is required to be arranged, so that the consistency of the overall appearance surface of the purification device is influenced, and the purification device is not beautiful enough; 3. the sealed sponge and the silk ribbon handle are arranged, but the space in the air purifier body is limited, so that the effective area of the corrugated purification plate is inevitably reduced, and the purification performance of the purification device is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an air purifier capable of drawing out a filter screen in a labor-saving manner aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an air purifier comprises

A body having a cavity with an open front side;

the filter screen can move back and forth and enters and exits the cavity from the opening of the machine body;

it is characterized by also comprising

The push rod is positioned on the moving path of the filter screen and can move back and forth;

the driving piece is connected with the push rod in a driving mode.

The driving part can be a motor, the structure is simple, and the driving part is an elastic part which can act on the push rod to ensure that the push rod keeps the trend of moving forwards.

For under the state that is located the cavity of organism at the filter screen, the filter screen is for the organism location, and can not move outside to the cavity under the effect of elastic component, push rod, but when the filter screen need be dismantled again, this air purifier of push rod can promote the filter screen again still includes the position sleeve, be equipped with first constant head tank and second constant head tank along its circumference interval on the position sleeve, first constant head tank and second constant head tank are all from a tip axial extension of position sleeve, and the length of first constant head tank is less than the length of second constant head tank, the push rod activity is worn to establish in the position sleeve, be equipped with on the periphery wall of push rod can offset or follow the lug that the second constant head tank removed with the blind end of first constant head tank.

When the lug abuts against the first positioning groove, the push rod cannot push the filter screen towards the outside of the machine body; when the lug rotates to be dislocated with the first positioning groove and moves along the second positioning groove, the push rod pushes the filter screen towards the direction outside the machine body, and the filter screen is pulled out in a labor-saving manner.

In order to enable the bump to enter the first positioning groove or the second positioning groove alternatively, the wall surface of the first positioning groove, which is adjacent to the second positioning groove, is a first inclined surface;

the push rod extends along the front-back direction and comprises

The first rod body penetrates through the positioning sleeve, and the first end surface of the first rod body is of an undulating sawtooth-shaped structure;

the second body of rod, the second body of rod links to each other with the first end of the first body of rod, the second body of rod and the synchronous axial displacement of the first body of rod, just the second body of rod can rotate for the first body of rod, is equipped with on the periphery wall of the second body of rod the lug, the terminal surface of lug are the second inclined plane, and this second inclined plane can be inconsistent with the sawtooth structure of the first body of rod, and the incline direction on this second inclined plane and the first inclined plane of position sleeve is unanimous to make the second body of rod rotate to first constant head tank or second constant head tank on the alignment position sleeve.

In order to connect the second rod body with the first rod body, the second rod body is partially inserted into the first rod body, and the second rod body can rotate relative to the first rod body.

In order to improve the firmness of the lug abutting against the first positioning groove, the first positioning groove is triangular. Because the end face of the lug is an inclined plane, the inclined plane can be well matched with the triangular structure of the first positioning groove.

In order to enable the first rod body to only move axially and not rotate, a guide groove is formed in the inner wall surface of the positioning sleeve along the axial direction of the positioning sleeve, and a guide block capable of moving along the guide groove is arranged on the outer peripheral wall of the first rod body. The cooperation of guide way and guide block for the first body of rod can only move axially, and can not rotate.

In order to facilitate the setting promotion subassembly, and do not occupy the space of the cavity or the filter screen of organism, the back wall of organism perhaps set up the notch on one of them of the back wall of filter screen and face to another recess, the recess extends along the fore-and-aft direction, the position sleeve is fixed to be located in the recess, and first constant head tank and second constant head tank are all from the tip axial extension of keeping away from the recess notch of position sleeve, the first end of the first body of rod is arranged in the recess, the recess can be stretched out to the second end of the first body of rod, the second body of rod is arranged in the recess. Like this under the state that the filter screen is located the organism, except that the second end part of the first body of rod is located the recess, other parts that promote the subassembly all in the recess, can not too much occupy the volume of organism or filter screen, can guarantee the effective area of filter screen, guarantee purifying performance.

In order to facilitate the arrangement of the elastic part, a convex part is formed on the outer peripheral wall of the second rod body, the convex part is arranged on the convex part, the elastic part is a spring, the spring sleeve is arranged on the second rod body, one end of the spring is abutted against the closed end of the groove, and the other end of the spring is abutted against the convex part on the second rod body.

In order to guide the back-and-forth movement track of the filter screen, two guide rails are oppositely arranged on the left side wall and the right side wall of the cavity of the machine body, each guide rail extends along the front-and-back direction, and the filter screen is placed on the two guide rails and can move back and forth along the guide rails.

Compared with the prior art, the utility model has the advantages that: according to the utility model, through the arrangement of the push rod and the driving part, when the filter screen is disassembled, the push rod moves forwards under the action of the driving part and can push the filter screen outwards, so that the disassembly of the filter screen is not completely manual, and the filter screen is labor-saving and convenient to disassemble.

Drawings

Fig. 1 is a schematic view of an assembly structure of a machine body and a filter screen according to embodiment 1 of the present invention (only a part of the machine body is shown in the figure);

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the filter screen of FIG. 1 with the screen removed;

FIG. 4 is a schematic view of the pushing assembly (the spring is in the second positioning groove in the natural state);

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is another exploded view of FIG. 4;

FIG. 7 is a schematic view of the pushing assembly (spring compressed, cam moving along second detent);

FIG. 8 is a schematic view of the pushing assembly (the spring continues to be compressed and the protrusion moves along the second detent);

FIG. 9 is a schematic view of the pushing assembly (the second rod rotates, and the protrusion enters the first positioning slot);

FIG. 10 is a schematic view of the pushing assembly (the protrusion abuts against the closed end of the first positioning slot);

FIG. 11 is a schematic view of a screen and pushing assembly according to embodiment 2 of the present invention;

fig. 12 is a schematic structural view of the filter screen of fig. 11.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Example 1

As shown in fig. 1 to 3, the air purifier of the preferred embodiment includes a body 1, a filter 2 and a pushing assembly, wherein the body 1 has a cavity (not shown) with an opening at a front side, and the filter 2 can move back and forth into and out of the cavity from the opening of the body 1. Two guide rails 11 are oppositely arranged on the left side wall and the right side wall of the cavity of the machine body 1, each guide rail 11 extends along the front-back direction, and the filter screen 2 is placed on the two guide rails 11 and can move back and forth along the guide rails 11 so as to guide the track of the back and forth movement of the filter screen 2.

When dismantling filter screen 2, with filter screen 2 to the outer pulling of organism 1 (be forward pulling promptly), it is comparatively hard with the help of the manpower completely, so this embodiment is provided with the promotion subassembly to can be laborsaving dismantle filter screen 2.

As shown in fig. 3 to 6, the pushing assembly includes a pushing rod 3, an elastic member 4 and a positioning sleeve 5. The push rod 3 extends along the front-back direction, the push rod 3 is positioned on the moving path of the filter screen 2, the push rod 3 can move front and back, and the elastic piece 4 is a driving piece capable of driving the push rod 3 to move forward. In the state that the filter screen 2 is located in the cavity of the machine body 1, the elastic element 4 acts on the push rod 3 so that the push rod 3 always keeps the trend of pushing the filter screen 2 outwards of the machine body 1. The positioning sleeve 5 plays a role in blocking the push rod 3 from moving forwards so as to prevent the push rod 3 from pushing the filter screen 2 forwards, but when the filter screen 2 needs to be detached, the positioning sleeve 5 can unlock the push rod 3.

The promotion subassembly setting of this embodiment is on organism 1, offers the recess 12 that the notch is facing to filter screen 2 on organism 1's the back wall, and recess 12 extends along the fore-and-aft direction, and the position sleeve 5 is fixed to be located in recess 12, and position sleeve 5 is located push rod 3 with filter screen 2 towards the route of organism 1 outer promotion.

In this embodiment, the positioning sleeve 5 is tubular, the axis of the positioning sleeve 5 extends along the front-back direction, the peripheral wall of the positioning sleeve 5 is provided with a first positioning groove 51 and a second positioning groove 52 at intervals along the circumferential direction, the first positioning groove 51 and the second positioning groove 52 both extend axially from the end (rear end) of the positioning sleeve 5 far away from the notch of the groove 12, and the length of the first positioning groove 51 is smaller than that of the second positioning groove 52. In this embodiment, the first positioning groove 51 is triangular, that is, the wall surface of the first positioning groove 51 adjacent to the second positioning groove 52 is a first inclined surface 511.

The putter 3 comprises a first rod 31 and a second rod 32, the second rod 32 is connected to a first end of the first rod 31, a slot 310 is formed at the first end of the first rod 31, the second rod 32 is partially inserted into the slot 310 of the first rod 31, the second rod 32 and the first rod 31 move axially in a synchronous manner, and the second rod 32 can rotate relative to the first rod 31. The second rod 32 is located in the groove 12, the first end of the first rod 31 is located in the groove 12, and the second end of the first rod 31 can extend out of the groove 12 to contact the rear wall surface of the filter screen 2.

The first end surface of the first rod 31 is a saw-toothed structure 311, the outer peripheral wall of the second rod 32 is provided with a protrusion 321, the end surface of the protrusion 321 is a second inclined surface 3211, the second inclined surface 3211 can be abutted against the saw-toothed structure 311 of the first rod 31, and the inclined directions of the second inclined surface 3211 and the first inclined surface 511 are the same.

When the first rod 31 is extruded and the elastic element 4 is compressed to the limit state, the first rod 31 is continuously extruded, the second inclined surface 3211 of the second rod 32 is abutted to the saw-toothed structure 311 of the first rod 31, and the second rod 32 can rotate around its axis, so that the second rod 32 can rotate to align with the first positioning groove 51 or the second positioning groove 52 on the positioning sleeve 5, and the protrusion 321 can abut to the closed end (front end) of the first positioning groove 51, or the protrusion 321 moves along the second positioning groove 52.

When lug 321 offsets with first constant head tank 51, the adaptation that the second inclined plane 3211 of lug 321 and the triangle-shaped structure of first constant head tank 51 can be good, and push rod 3 can not promote filter screen 2 outwards towards organism 1, and filter screen 2 is in under the state of cartridge in organism 1 this moment, and the promotion subassembly all is arranged in recess 12 basically, does not occupy the space of filter screen 2 or cavity, can not influence the effective area of filter screen 2, can not influence the purifying performance of filter screen 2.

When the protrusion 321 rotates to be dislocated with the first positioning groove 51 and moves along the second positioning groove 52, the push rod 3 pushes the filter screen 2 toward the outside of the machine body 1, and it is more labor-saving to draw out the filter screen 2.

A convex portion 322 is formed on the outer peripheral wall of the second rod 32, the protrusion 321 is disposed on the convex portion 322, the elastic member 4 is a spring, the spring is sleeved on the second rod 32, one end of the spring abuts against the closed end of the groove 12, and the other end of the spring abuts against the convex portion 322 on the second rod 32.

The inner wall surface of the positioning sleeve 5 is provided with a guide groove 53 along the axial direction thereof, and the outer peripheral wall of the first rod 31 is provided with a guide block 312 which can move along the guide groove 53. The cooperation of the guide slot 53 and the guide block 312 allows the first rod 31 to move only axially and not to rotate. In this embodiment, the number of the guide blocks 312 is set to be larger, the wall thickness of the positioning sleeve 5 corresponding to the second positioning groove 52 is set to be larger, a part of the guide blocks 312 can be accommodated in the second guide groove 53 and slide along the second guide groove 53, and the guide blocks 312 do not interfere with the projection 321 entering the second guide groove 53.

The working principle of the air purifier of the embodiment is as follows:

as shown in fig. 4, when the elastic element 4 is in a natural state, the protrusion 321 is located in the second positioning slot 52, and the second inclined surface 3211 of the protrusion 321 on the second rod 32 abuts against the saw-toothed structure 311 of the first rod 31;

as shown in fig. 7, the filter screen 2 is pushed backward into the body 1, and applies a squeezing force to the front end of the first rod 31, and the first rod 31 pushes the second rod 32 to move backward, at this time, the elastic element 4 is compressed;

as shown in fig. 8, the filter screen 2 continues to be pushed into the body 1, and continues to apply a pressing force to the front end of the first rod 31, when the spring is compressed to the limit state, the protrusion 321 of the second rod 32 is disengaged from the second positioning slot 52 of the positioning sleeve 5;

as shown in fig. 9, the first rod 31 is continuously pressed, because the second rod 32 cannot continuously axially move, under the action of the second inclined surface 3211 of the protrusion 321 of the second rod 32 and the teeth of the saw-toothed structure 311 of the first rod 31, the second rod 32 rotates around its axis (counterclockwise in the right-view direction of fig. 9), until the protrusion 321 on the second rod 32 enters the first positioning groove 51;

as shown in fig. 10, under the action of the elastic element 4, the second rod 32 rotates and moves forward, the projection 321 slides along the wall surface of the first positioning groove 51 until abutting against the closed end of the first positioning groove 51, at this time, the filter screen 2 is installed in place, and the elastic element 4 is still in a compressed state;

when the filter screen 2 needs to be detached, the filter screen 2 is pressed backwards, the protrusion 321 moves towards the direction away from the closed end of the first positioning groove 51, when the elastic element 4 is compressed to the limit state, the filter screen 2 continues to be pressed, the second rod body 32 rotates (clockwise rotation occurs in the right view direction of fig. 10) due to the interference effect with the teeth of the sawtooth-shaped structure 311 of the first rod body 31 until the protrusion 321 aligns with the second positioning groove 52, the force applied to the filter screen 2 is relieved at this time, the protrusion 321 moves forwards along the second positioning groove 52, as shown in fig. 4, the push rod 3 pushes the filter screen 2 to move forwards, and at this time, the filter screen 2 is pulled outwards (i.e. forwards) more easily.

Example 2

As shown in fig. 11 and 12, embodiment 2 differs from embodiment 1 in that:

the groove 12 is arranged on the filter screen 2, the groove 12 with the notch facing the rear wall surface of the machine body 1 is arranged on the rear wall surface of the filter screen 2, and the groove 12 extends along the front-back direction. The structure of the pushing assembly of this embodiment is the same as that of embodiment 1, except that the grooves 12 are formed on the screen 2 and the pushing assembly is disposed on the screen 2.

When the filter screen 2 is installed, the second end of the first rod body 31 is in contact with the machine body 1, and the rear wall surface of the machine body 1 applies extrusion force on the first rod body 31; when dismantling filter screen 2, earlier to promote filter screen 2 backward, the second end of the first body of rod 31 exerts force on organism 1, and elastic component 4 is compressed, but organism 1 is immovable, and elastic component 4 releases elastic potential energy and pushes the first body of rod 31 backward to drive filter screen 2 and move forward.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships illustrated in the drawings for the purposes of convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, construction and operation, and that the disclosed embodiments of the utility model are arranged in different orientations, so that the directional terms are exemplary only and are not to be construed as limiting, e.g., "upper," "lower than," and the same, "" lower than, "etc., where the same, and the same than the like in the same than the other than the same than the other than the same in the same than the same in the same than in the same direction of the same, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity.

Claims (10)

1. An air purifier comprises

A body (1) having a cavity with an open front side;

the filter screen (2) can move back and forth and enter and exit the cavity from the opening of the machine body (1);

it is characterized by also comprising

The push rod (3) is positioned on the moving path of the filter screen (2), and the push rod (3) can move back and forth;

the driving piece is connected with the push rod (3) in a driving mode.

2. The air purifier of claim 1, wherein: the driving piece is an elastic piece (4) which can act on the push rod (3) to ensure that the push rod (3) keeps the forward movement trend.

3. The air purifier of claim 2, wherein: still include position sleeve (5), be equipped with first constant head tank (51) and second constant head tank (52) along its circumference interval on position sleeve (5), a tip axial extension of first constant head tank (51) and second constant head tank (52) all from position sleeve (5), and the length of first constant head tank (51) is less than the length of second constant head tank (52), push rod (3) activity is worn to establish in position sleeve (5), be equipped with on the periphery wall of push rod (3) can offset or follow lug (321) that second constant head tank (52) removed with the blind end of first constant head tank (51).

4. The air purifier of claim 3, wherein: the wall surface of the first positioning groove (51) adjacent to the second positioning groove (52) is a first inclined surface (511); the push rod (3) extends along the front-back direction and comprises

The first rod body (31) penetrates through the positioning sleeve (5), and the first end surface of the first rod body (31) is of a sawtooth structure (311);

the second body of rod (32), the second body of rod (32) links to each other with the first end of the first body of rod (31), the second body of rod (32) and the synchronous axial displacement of the first body of rod (31), just the second body of rod (32) can rotate for the first body of rod (31), is equipped with on the periphery wall of the second body of rod (32) lug (321), the terminal surface of lug (321) are second inclined plane (3211), and this second inclined plane (3211) can be inconsistent with sawtooth structure (311) of the first body of rod (31), and the incline direction of this second inclined plane (3211) and first inclined plane (511) of position sleeve (5) is unanimous.

5. The air purifier of claim 4, wherein: the first positioning groove (51) is triangular.

6. The air purifier of claim 4, wherein: the second rod body (32) is partially inserted into the first rod body (31), and the second rod body (32) can rotate relative to the first rod body (31).

7. The air purifier of claim 4, wherein: a guide groove (53) is formed in the inner wall surface of the positioning sleeve (5) along the axial direction of the positioning sleeve, and a guide block (312) capable of moving along the guide groove (53) is arranged on the outer peripheral wall of the first rod body (31).

8. The air purifier of claim 4, wherein: the back wall of organism (1) perhaps set up notch on one of them of the back wall of filter screen (2) and facing to recess (12) of another, recess (12) extend along the fore-and-aft direction, position sleeve (5) are fixed to be located in recess (12), and first constant head tank (51) and second constant head tank (52) are all from the tip axial extension of keeping away from recess (12) notch of position sleeve (5), the first end of the first body of rod (31) is located recess (12), recess (12) can be stretched out to the second end of the first body of rod (31), the second body of rod (32) is located recess (12).

9. The air purifier of claim 8, wherein: convex part (322) are formed on the peripheral wall of the second rod body (32), convex part (322) are arranged on convex part (321), elastic part (4) is a spring, the spring sleeve is arranged on the second rod body (32), one end of the spring is abutted against the closed end of groove (12), and the other end of the spring is abutted against convex part (322) on the second rod body (32).

10. An air cleaner according to any one of claims 1-9, wherein: the filter screen is characterized in that two guide rails (11) are oppositely arranged on the left side wall and the right side wall of the cavity of the machine body (1), each guide rail (11) extends in the front-back direction, and the filter screen (2) is placed on the two guide rails (11) and can move back and forth along the guide rails (11).

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