CN219089096U

CN219089096U - Double-deck HEPA mounting connection structure

Info

Publication number: CN219089096U
Application number: CN202223146261.3U
Authority: CN
Inventors: 于春波
Original assignee: Ningbo Deli Tools Co Ltd
Current assignee: Ningbo Deli Tools Co Ltd
Priority date: 2022-11-26
Filing date: 2022-11-26
Publication date: 2023-05-30
Anticipated expiration: 2032-11-26

Abstract

The utility model relates to the technical field of dust collectors and discloses a double-layer HEPA installation connection structure which comprises an outer metal screen structure and an inner HEPA structure, wherein the outer metal screen structure comprises an outer bottom wall, reinforcing ribs are fixedly connected to the edge of the rear side surface of the outer bottom wall at equal intervals, a second connection structure is arranged in a protruding mode in the middle of the rear side surface of the outer bottom wall, the inner HEPA structure comprises a HEPA layer, the HEPA layer is in a round table shape, the head of the HEPA layer is fixedly connected with the inner bottom wall, a first connection structure is fixedly connected to the front surface of the inner bottom wall, and the second connection structure is clamped in the limiting clamping groove. According to the utility model, the second connecting structure is clamped in the limiting clamping groove, so that the tight connection between the inner HEPA structure and the outer metal screen structure is realized, and the strength of the connecting form is higher and the service life is prolonged under the basic condition of smaller parts.

Description

Double-deck HEPA mounting connection structure

Technical Field

The utility model relates to the technical field of dust collectors, in particular to a double-layer HEPA installation connection structure.

Background

All can install HEPA structure in the portable dust catcher in order to intercept dust etc. of dust catcher inhalation, traditional HEPA structure is bilayer structure, and the inlayer is the cotton layer of filtration, and the outside is equipped with metal screen cloth layer, and metal screen cloth is used for intercepting great stereoplasm solid particle in order to protect the inlayer.

Traditional double-deck HEPA structure can set up the hangers structure in order to guarantee the connection between the two-layer structure, but because the HEPA structure that sets up in the portable dust catcher is less, set up the space of hangers structure limited, but the hangers structure is fragile damage easily, in case receive the striking or just can damage the fracture after using for a long time.

Disclosure of Invention

The utility model aims to provide a double-layer HEPA installation connection structure for solving the problems in the background art.

The utility model solves the technical problems by adopting the following technical scheme:

the double-layer HEPA installation connection structure comprises an outer metal screen structure and an inner HEPA structure, wherein the outer metal screen structure comprises an outer bottom wall, a second connection structure is arranged in the middle of the rear side surface of the outer bottom wall in a protruding mode, the second connection structure is of a rectangular structure, and the center point of the second connection structure and the central axis of the outer bottom wall are on the same straight line;

the inner HEPA structure comprises a HEPA layer, the head of the HEPA layer is fixedly connected with an inner bottom wall, the front surface of the inner bottom wall is fixedly connected with a first connecting structure, two first connecting structures are arranged, each first connecting structure is fixedly connected with a blocking structure in the direction of a circle center, a limiting clamping groove is formed between the blocking structure and the first connecting structure, the two first connecting structures and the blocking structure are in central symmetry relation with respect to the circle center of the inner bottom wall, the tail of the HEPA layer is fixedly connected with a connecting end, and the front side surface of the connecting end is provided with a butt groove;

the second connecting structure is clamped in the limiting clamping groove.

The outer layer bottom wall comprises an outer layer bottom wall, wherein the outer layer bottom wall is fixedly connected with a back side surface edge of the outer layer bottom wall at equal intervals, the back ends of the back side surface edge of the outer layer bottom wall are fixedly connected with abutting rings in a common mode, and the outer side surfaces of the abutting rings are symmetrically fixedly connected with alignment protrusions.

Advantageously, the HEPA layer is disposed between the ribs.

Advantageously, the rear end of the abutment ring is fitted flush inside the abutment groove.

The alignment hole is L-shaped, the number of the alignment holes is equal to that of the alignment protrusions, the positions of the alignment holes and the alignment protrusions correspond to each other, and the alignment protrusions are clamped in the corresponding alignment holes.

Advantageously, the HEPA layer is frustoconical, the head area of the HEPA layer being smaller than the tail.

The utility model has the advantages and positive effects that:

according to the utility model, the second connecting structure is clamped in the limiting clamping groove, so that tight connection between the inner HEPA structure and the outer metal screen structure is realized, the hanging lug structure does not need to be arranged on the side wall of the outer metal screen structure, the strength of the connecting form is higher under the basic condition of smaller parts, the counterpoint bulge and the counterpoint hole which are positioned at the tail ends of the outer metal screen structure and the inner HEPA structure are mutually clamped, the connection tightness between the outer metal screen structure and the inner HEPA structure is further enhanced, the connection effect between the inner and outer connecting structures is enhanced, and the service life is prolonged.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic three-dimensional view of a dual-layer HEPA mounting connection structure according to the present utility model;

FIG. 2 is a schematic three-dimensional structure of an outer metal screen structure according to the present utility model;

FIG. 3 is a schematic three-dimensional representation of the internal HEPA structure of the present utility model;

fig. 4 is a schematic three-dimensional structure of a connection terminal according to the present utility model.

The index marks in the drawings are as follows: 11. an outer layer metal screen structure; 111. an outer bottom wall; 112. a second connecting structure; 113. reinforcing ribs; 114. an abutment ring; 115. alignment protrusions; 12. an internal HEPA structure; 121. a HEPA layer; 122. a connection end; 123. an abutment groove; 124. an inner bottom wall; 125. a first connecting structure; 126. a limit clamping groove; 127. a blocking structure; 128. and (5) aligning the holes.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model. Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:

referring to fig. 1-4, an embodiment of the present utility model is provided: a double-layer HEPA installation connection structure comprises an outer layer metal screen structure 11 and an inner HEPA structure 12, wherein the outer layer metal screen structure 11 comprises an outer layer bottom wall 111, reinforcing ribs 113 are fixedly connected to the edges of the rear side surfaces of the outer layer bottom wall 111 at equal intervals, abutting rings 114 are fixedly connected to the rear ends of the reinforcing ribs 113 together, aligning protrusions 115 are symmetrically fixedly connected to the outer side surfaces of the abutting rings 114, a second connection structure 112 is arranged in a protruding mode on the middle of the rear side surface of the outer layer bottom wall 111, the second connection structure 112 is of a rectangular structure, the central point of the second connection structure 112 and the central axis of the outer layer bottom wall 111 are on the same straight line, the inner HEPA structure 12 comprises HEPA layers 121, the HEPA layers 121 are in a round table shape, the head area of HEPA layer 121 is less than the afterbody, HEPA layer 121's head rigid coupling has inlayer diapire 124, inlayer diapire 124's front surface rigid coupling has connection structure one 125, connection structure one 125 is provided with two, the directional centre of a circle's of every connection structure one 125 direction rigid coupling has blocking structure 127, be formed with spacing draw-in groove 126 between blocking structure 127 and the connection structure one 125, and two sets of connection structure one 125 and blocking structure 127 are central symmetry about inlayer diapire 124's centre of a circle, HEPA layer 121's afterbody rigid coupling has link 122, the butt groove 123 has been seted up to the leading flank of link 122, counterpoint hole 128 has been seted up to the lateral wall of butt groove 123.

HEPA layer 121 sets up between strengthening rib 113, and connection structure two 112 and connection structure one 125 positions correspond each other, and connection structure two 112 joint is in the inside of spacing draw-in groove 126, forms spacing draw-in groove 126 between every connection structure one 125 and its corresponding blocking structure 127, and connection structure two 112 extends to in the spacing draw-in groove 126 and its lower lateral wall and the downside butt of spacing draw-in groove 126 to realize the zonulae occludens between inside HEPA structure 12 and the outer metal screen structure 11, do not need to set up the hangers structure on the lateral wall of outer metal screen structure 11, under the less basic condition of part, this connection form's intensity is higher.

In addition, in one embodiment, the rear end of the abutment ring 114 is flush mounted inside the abutment groove 123 such that the rear side of the outer metal screen structure 11 and the rear side of the inner HEPA structure 12 are assembled.

In addition, in one embodiment, the alignment holes 128 are L-shaped, the alignment holes 128 and the alignment protrusions 115 are equal in number and correspond to each other in position, and the alignment protrusions 115 are engaged with the corresponding alignment holes 128 for fixing the abutment ring 114 to the inside of the abutment groove 123.

In particular, when the outer metal screen structure 11 and the inner HEPA structure 12 are assembled, the HEPA layer 121 of the inner HEPA structure 12 is placed between the reinforcing ribs 113 of the outer metal screen structure 11, the alignment protrusions 115 and the alignment holes 128 are made to correspond to each other, then the alignment protrusions 115 are clamped into the alignment holes 128, at this time, the first connection structure 125 abuts against the inner side surface of the outer bottom wall 111, the rear end of the abutment ring 114 abuts against the inside of the abutment groove 123, then the outer metal screen structure 11 is rotated, the second connection structure 112 is rotated to the inside of the limiting clamping groove 126 to be clamped and fixed, the alignment protrusions 115 are rotated and clamped inside the alignment holes 128, so that tight connection between the inner HEPA structure 12 and the outer metal screen structure 11 is achieved, the hanging lug structure does not need to be arranged on the side wall of the outer metal screen structure 11, the strength of the connection form is higher under the condition that the parts are smaller, and the alignment protrusions 115 and the alignment holes 128 located at the tail ends of the outer metal screen structure 11 and the inner HEPA structure 12 are clamped with each other, so that the connection between the outer metal screen structure 11 and the inner HEPA structure 12 is further enhanced.

It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.

Claims

1. Double-deck HEPA installation connection structure, including outer metal mesh structure (11) and inside HEPA structure (12), its characterized in that: the outer metal screen structure (11) comprises an outer bottom wall (111), a second connecting structure (112) is arranged in the middle of the rear side surface of the outer bottom wall (111) in a protruding mode, the second connecting structure (112) is of a rectangular structure, and the center point of the second connecting structure (112) and the central axis of the outer bottom wall (111) are on the same straight line; the inner HEPA structure (12) comprises a HEPA layer (121), an inner bottom wall (124) is fixedly connected to the head of the HEPA layer (121), a first connecting structure (125) is fixedly connected to the front surface of the inner bottom wall (124), two first connecting structures (125) are arranged, each first connecting structure (125) is fixedly connected with a blocking structure (127) in the direction of the circle center, a limiting clamping groove (126) is formed between the blocking structure (127) and the first connecting structure (125), the two first connecting structures (125) and the blocking structure (127) are in central symmetry relation with the circle center of the inner bottom wall (124), a connecting end (122) is fixedly connected to the tail of the HEPA layer (121), and a butt groove (123) is formed in the front side surface of the connecting end (122); the second connecting structure (112) and the first connecting structure (125) are corresponding in position, and the second connecting structure (112) is clamped in the limiting clamping groove (126).

2. The dual layer HEPA mounting connection according to claim 1, wherein: reinforcing ribs (113) are fixedly connected to the edges of the rear side surfaces of the outer-layer bottom walls (111) at equal intervals, abutting rings (114) are fixedly connected to the rear ends of the reinforcing ribs (113) together, and alignment protrusions (115) are symmetrically fixedly connected to the outer side surfaces of the abutting rings (114).

3. The dual-layer HEPA mounting connection according to claim 2, wherein: the HEPA layer (121) is arranged between the reinforcing ribs (113).

4. The dual-layer HEPA mounting connection according to claim 2, wherein: the rear end of the abutting ring (114) is embedded and installed in the abutting groove (123).

5. The dual-layer HEPA mounting connection according to claim 2, wherein: the outer side wall of the abutting groove (123) is provided with an alignment hole (128), the alignment hole (128) is L-shaped, the alignment hole (128) and the alignment protrusions (115) are equal in number and correspond to each other in position, and the alignment protrusions (115) are clamped and connected with the corresponding inner parts of the alignment holes (128).

6. The dual layer HEPA mounting connection according to claim 1, wherein: the HEPA layer (121) is in a round table shape, and the head area of the HEPA layer (121) is smaller than the tail.