CN212854988U - Dual air cleaner - Google Patents

Abstract

The utility model provides a dual air cleaner belongs to filtration equipment technical field. It has been solved in the prior art design on the filter core after having used a period because the attached to of large granule impurity in a large amount of air causes needs frequent change scheduling problem. The dual air filter comprises a first end cover and a second end cover, wherein an air outlet hole for purified air to flow out is formed in the first end cover, an inner filter layer which is of a cylindrical structure and made of filter paper is arranged between the first end cover and the second end cover, and an outer filter layer and the like which are arranged on the circumferential outer side of the inner filter layer and used for filtering large-particle impurities are arranged between the first end cover and the second end cover. This dual air cleaner's advantage lies in: the setting of outer filter layer will treat filterable air and before making the inner filter layer that is the tubular structure by filter paper, block the large granule impurity in it earlier to reduce because of the influence of large granule impurity to the filtering capability of inner filter layer, prolonged life.

Description

Dual air cleaner

Technical Field

The utility model belongs to the technical field of filtration equipment for the filtration of air especially relates to a dual air cleaner.

Background

In a common air filter, a filter element made of filter paper is bonded to end caps connected to both ends of the filter element by an adhesive, when the air filter is used, air to be purified enters the filter element from the outside, and the filter element filters impurities in the air, so that the air is purified. However, in the long-term use process, the impurities with larger particle sizes can block the air inlet side of the filter element, so that the whole air filter has the problem of unsmooth air inlet.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to provide a dual air filter that solves at least some of the above problems.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model discloses a dual air cleaner, including end cover one and end cover two, set up the venthole that supplies the air outflow after the purification on the end cover one, be equipped with between end cover one and the end cover two and make the inner filter layer that is tubular structure, its characterized in that by filter paper: an outer filtering layer which is arranged around the outer side of the circumferential direction of the inner filtering layer and used for filtering large-particle impurities is arranged between the first end cover and the second end cover, and two sides of the outer filtering layer, which are adjacent to the first end cover and the second end cover, are respectively provided with a clamping assembly.

In the above-described double air filter, the outer filter layer is made of a flexible mesh member provided with mesh holes.

In the above-mentioned dual air filter, the latch assembly includes a main latch member provided on the outer sides of the respective lower edge portions of the first and second end caps to protrude in the radially outward direction, and sub-latch members provided on both sides of the outer filter layer adjacent to the first and second end caps to engage with the main latch member.

In foretell dual air cleaner, main joint part includes the cardboard, has seted up a plurality of first card holes that supply vice joint part card to go into on the cardboard, still has seted up on the cardboard and has supplied first card hole and external first connecting channel who communicates.

In the above dual air filter, the clamping plates are annularly arranged on the outer sides of the respective lower edge parts of the first end cover and the second end cover.

In the above dual air filter, all the first fastening holes are uniformly spaced and annularly distributed on the fastening plate.

In the above dual air filter, the clamping plate is further provided with a second clamping hole which is closer to the radial inner side relative to the first clamping hole, each first clamping hole is correspondingly provided with a second clamping hole, and a second connecting channel is arranged between each corresponding second clamping hole and the first clamping hole.

In the above dual air filter, the first clamping plate and the first end cover, and the second clamping plate and the second end cover are integrally formed.

In the above-described dual air filter, the secondary engaging member includes engaging portions which engage with the primary engaging member provided on both sides of the outer filter layer adjacent to the first end cap and the second end cap.

Compared with the prior art, the dual air filter has the advantages that: the setting of outer filter layer will treat filterable air and before making the inner filter layer that is the tubular structure by filter paper, block the large granule impurity in it earlier to reduce because of the influence of large granule impurity to the filtering capability of inner filter layer, prolonged life. In addition, the outer filter layer is connected with the first end cover and the second end cover through a clamping component respectively, so that the installation is convenient, and the outer filter layer can be detached to be cleaned and dried independently and then reused when being maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 provides a schematic structural diagram in an embodiment of the present invention.

Fig. 2 provides a side view of fig. 1 from both sides of the end cap.

Fig. 3 provides a side view schematic of fig. 1 from one side of the end cap.

In the figure, a first end cover 101, a second end cover 102, an air outlet hole 103, an outer filter layer 105, a clamping plate 106, a first clamping hole 107, a first connecting channel 108, a second clamping hole 109, a second connecting channel 110 and a clamping head 111.

Detailed Description

Example 1

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

As shown in fig. 1 to 3, the dual air filter includes a first end cover 101 and a second end cover 102, the first end cover 101 is provided with an air outlet 103 for purified air to flow out, an inner filter layer made of filter paper and having a cylindrical structure is disposed between the first end cover 101 and the second end cover 102, an outer filter layer 105 surrounding the outer side of the inner filter layer in the circumferential direction and used for filtering large-particle impurities is disposed between the first end cover 101 and the second end cover 102, and two sides of the outer filter layer 105 adjacent to the first end cover 101 and the second end cover 102 are respectively provided with a clamping component.

It should be noted that, here, both ends of the outer filter layer 105 are usually bonded to the inner end faces of the first end cap 101 and the second end cap 102 by an adhesive, but the first end cap 101 and the second end cap 102 may be fixed to the inner end faces of the first end cap 101 and the second end cap 102 by other connecting means.

Specifically, the outer filter layer 105 is made of a mesh-provided flexible mesh member, which may be made of industrial plastic, or woven from nylon rope, or may be woven from other materials as needed.

Therefore, after the filter is used for a period of time, more large-particle impurities can be accumulated on the outer filter layer 105, so that the filter work originally responsible for the inner filter layer is shared, and the use cost is saved for reducing the replacement frequency of the whole filter caused by the reduction of the inner filter layer.

Additionally, the clamping assembly comprises a main clamping part protruding outwards along the radial direction on the lower edge part of the first end cover 101 and the second end cover 102 and auxiliary clamping parts matched with the main clamping part on two sides of the outer filter layer adjacent to the first end cover 101 and the second end cover 102.

Namely, the detachable mode of clamping is adopted, so that the connection between a corresponding side on the outer filter layer 105 and the first end cover 101 and the second end cover 102 is realized during the installation, and only the corresponding side on the filter layer 105 needs to be separated from the first end cover 101 and the second end cover 102 during the detachment.

The clamping structure can be in various forms, as shown in fig. 2 and 3, in this embodiment, the main clamping part includes a clamping plate 106, a plurality of first clamping holes 107 for the auxiliary clamping part to be clamped into are formed in the clamping plate 106, and a first connecting channel 108 for communicating the first clamping holes 107 with the outside is further formed in the clamping plate 106.

The clamping plates 106 are generally annularly disposed on the outer sides of the respective lower edge portions of the first end cover 101 and the second end cover 102, so that all the first clamping holes 107 are uniformly spaced and annularly distributed on the clamping plates 106, but it is also possible that there are a plurality of clamping plates 106, which are uniformly spaced and annularly distributed on the outer sides of the respective lower edge portions of the first end cover 101 and the second end cover 102, and each clamping plate 106 is provided with a first clamping hole 107.

The auxiliary engaging member here includes an engaging head 111 engaged with the first engaging hole 107, and a pull cord for connecting the engaging head 111 and the outer filter layer 105 may be further provided.

During installation, only a relatively small portion of the connection clip 111 or other connection element (connection cord) of the connection clip 111 needs to be passed through the first connection channel 108 to reach the first clipping hole 107, and the clip 111 is clipped on the clip 111, and the procedure is reversed when it needs to be removed.

In order to increase the clamping stability, the clamping plate 106 is integrally formed with the first end cover 101, the clamping plate 106 and the second end cover 102.

In addition, in order to prevent the chuck 111 from being detached in the use process, the communication port where the first clamping hole 107 and the first connecting channel 108 meet each other is optimally set, for example, the communication port can be set to be reduced so that the aperture of the communication port is smaller than that of the first connecting channel 108, and the position where the communication port is disposed on the first clamping hole 107 can also be optimized, for example, the communication port can be disposed on the first clamping hole 107 at a position close to the inner filter layer.

Example 2

This embodiment is substantially the same as embodiment 1 except that: the clamping plate 106 is further provided with second clamping holes 109 which are closer to the radial inner side relative to the first clamping holes 107, each first clamping hole 107 is correspondingly provided with one second clamping hole 109, and a second connecting channel 110 is arranged between each corresponding second clamping hole 109 and the first clamping hole 107.

With the arrangement of the first clamping holes 107 and the second clamping holes 109, two ring-shaped outer filter layers 105 are sequentially arranged on the outer sides of the inner filter layers along the radial direction, so that meshes arranged on the outer filter layers 105 on the opposite outer sides are relatively large, and meshes arranged on the outer filter layers 105 on the opposite inner sides are relatively small, so that impurities in air with different particle sizes are filtered in a grading manner, and meanwhile, the filtering workload of the inner filter layers is further shared.

In addition, the arrangement of the first clamping holes 107 and the second clamping holes 109 is beneficial to selecting the inner filter layers with different outer diameters according to requirements, namely when the outer diameter of the inner filter layer is smaller, the clamping heads 111 connected with the outer filter layer 105 can be directly clamped on the second clamping holes 109 positioned on the radial inner side, so that the sizes of the outer filter layer 105 and the filter layer 105 can be correspondingly reduced, the filter material is saved, when the outer diameter of the inner filter layer is larger, the clamping heads 111 connected with the outer filter layer 105 are clamped on the first clamping holes 107 positioned on the radial outer side,

it should be noted that, here, the first click hole 107 and the second click hole 109 are provided inward in the radial direction, and more click holes may be provided in the radial direction as necessary to increase the outer diameter of the replaceable inner filter layer or increase the number of the outer filter layers 105.

Preferably, the communication port where the second card hole 109 and the second connection channel 110 meet is also provided in the same manner as the size and position of the communication port where the first card hole 107 and the first connection channel 108 meet.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the first end cap 101, the second end cap 102, the air outlet hole 103, the outer filter layer 105, the clamping plate 106, the first clamping hole 107, the first connecting channel 108, the second clamping hole 109, the second connecting channel 110, the clamping head 111, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (9)

1. The utility model provides a dual air cleaner, includes end cover one (101) and end cover two (102), end cover one (101) on offer the venthole (103) that supply the air after the purification to flow out, end cover one (101) and end cover two (102) between be equipped with and make the interior filter layer that is the tubular structure by filter paper, its characterized in that: the utility model discloses a filter, including end cover one (101) and end cover two (102), be equipped with between end cover one (101) and the end cover two (102) and enclose outer filter layer (105) that are used for filtering large granule impurity of locating the interior filter layer circumference outside, outer filter layer (105) on with end cover one (101) and end cover two (102) adjacent both sides respectively be equipped with a joint subassembly.

2. Double air filter according to claim 1, characterised in that the outer filter layer (105) is made of a flexible mesh element provided with mesh openings.

3. The dual air filter according to claim 1, wherein the latch assembly comprises a primary latch member projecting in a radially outward direction on the outside of the respective lower edge portions of the first end cap (101) and the second end cap (102), and a secondary latch member engaging the primary latch member on both sides of the outer filter layer adjacent to the first end cap (101) and the second end cap (102).

4. The dual air filter according to claim 3, wherein the main fastening member comprises a fastening plate (106), the fastening plate (106) is provided with a plurality of first fastening holes (107) for the auxiliary fastening member to be fastened in, and the fastening plate (106) is further provided with a first connecting channel (108) for communicating the first fastening holes (107) with the outside.

5. The dual air filter of claim 4, wherein the catch plates (106) are arranged in a ring shape on the outer sides of the respective lower edge portions of the first end cap (101) and the second end cap (102).

6. The dual air filter according to claim 5, wherein all of said first locking holes (107) are uniformly spaced and annularly distributed on the locking plate (106).

7. The dual air filter according to claim 4, wherein the clamping plate (106) is further provided with a second clamping hole (109) which is closer to the radial inner side than the first clamping hole (107), each first clamping hole (107) is correspondingly provided with a second clamping hole (109), and a second connecting channel (110) is arranged between each corresponding second clamping hole (109) and the first clamping hole (107).

8. The dual air filter of claim 4, wherein the card (106) is integrally formed with the first end cap (101), the card (106), and the second end cap (102).

9. A dual air filter according to claim 3, wherein the secondary snap means comprise tabs (111) cooperating with the primary snap means on both sides of the outer filter layer (105) adjacent to the first (101) and second (102) end caps.

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