CN216589911U

CN216589911U - Leakage-proof sealing structure

Info

Publication number: CN216589911U
Application number: CN202122620761.5U
Authority: CN
Inventors: 刘旭
Original assignee: SHANGHAI HAWK FILTER CO Ltd
Current assignee: SHANGHAI HAWK FILTER CO Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-24
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of filters, in particular to a leakage-proof sealing structure. A prevent seal structure of leaking, includes the end cover, its characterized in that: the lower part of the end cover is sleeved with a dust barrel, and the outer edge of the lower part of the end cover, which is positioned at the joint of the end cover and the dust barrel, is provided with an annular sealing rib. Compared with the prior art, the sealing structure for preventing leakage is provided, and the sealing rib structure of one circle is additionally arranged on the end cover, so that the sealing performance is greatly improved, and the performance of the filter and the dust collector is improved.

Description

Leakage-proof sealing structure

Technical Field

The utility model relates to the technical field of filters, in particular to a leakage-proof sealing structure.

Background

In the prior art, as shown in the position of reference number 1 in fig. 1, the dust cylinder and the end cover of the dust collector in the prior filter structure have no sealing rib structure on the inner and outer diameters thereof. Because effective interference fit that can simple light dismouting can not be realized to inside and outside footpath, consequently under the negative pressure, the sealed leakage problem of air can't effectively avoid. Causing the serious decrease of the suction force of the suction inlet of the dust collector and the serious decrease of the dust collection efficiency.

Disclosure of Invention

The utility model provides a leakage-proof sealing structure for overcoming the defects of the prior art, and a circle of annular sealing ribs of a plastic elastomer are added on an end cover, so that the sealing performance, the dust collection efficiency and the suction force of an air suction opening are greatly improved, and the performances of a filter and a dust collector are improved to a great extent.

In order to achieve the purpose, the leakage-preventing sealing structure comprises an end cover and is characterized in that: the lower part of the end cover is sleeved with a dust barrel, and the outer edge of the lower part of the end cover, which is positioned at the joint of the end cover and the dust barrel, is provided with an annular sealing rib.

The annular sealing rib is provided with at least one layer.

One end of the annular sealing rib is connected with the outer edge of the lower part of the end cover, and the other end of the annular sealing rib is in interference fit with the inner wall of the dust cylinder.

The annular sealing rib and the end cover are integrally formed in an injection molding mode.

Compared with the prior art, the utility model provides the leakage-proof sealing structure, and the circle of sealing rib structure is added on the end cover, so that the sealing performance is greatly improved, and the performance of the filter and the dust collector is improved.

Drawings

Fig. 1 is a schematic diagram of a prior art structure.

Fig. 2 is a partially enlarged schematic view of fig. 1.

FIG. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a partially enlarged schematic view of fig. 3.

Fig. 5 is a schematic view of the end cap structure.

Fig. 6 is a partially enlarged schematic view of fig. 5.

Referring to fig. 1 to 6, 1 is a joint between the dust cylinder and the end cap, 2 is the end cap, 3 is the dust cylinder, 4 is the annular sealing rib, 5 is the hard plastic of the end cap, and 6 is the rubber-coated elastomer plastic of the end cap.

Detailed Description

The utility model is further illustrated below with reference to the accompanying drawings.

As shown in fig. 3 to 6, the dust cylinder 3 is sleeved on the lower portion of the end cover 2, and an annular sealing rib 4 is arranged on the outer edge of the lower portion of the end cover 2 at the joint of the end cover 2 and the dust cylinder 3.

The annular sealing rib 4 is provided with at least one layer.

One end of the annular sealing rib 4 is connected with the outer edge of the lower part of the end cover 2, and the other end of the annular sealing rib 4 is in interference fit with the inner wall of the dust cylinder 3.

The annular sealing rib 4 and the end cover 2 are integrally formed by injection molding.

The end cover 2 is formed integrally by injection molding, the annular sealing rib 4 is designed on the rubber-coated elastomer plastic 6 of the end cover, the rubber-coated elastomer plastic 6 of the end cover is wrapped on the hard plastic 5 of the end cover, and the annular sealing rib 4, the hard plastic 5 of the end cover and the rubber-coated elastomer plastic 6 of the end cover are formed integrally by injection molding through a hard plastic injection mold and a rubber-coated injection mold, so that the end cover 2 with the annular sealing rib is formed.

As shown in fig. 1 at the position of reference numeral 1, in the prior art, the dust cylinder 3 and the end cap 2 of the dust collector have no interference fit of a sealing structure on the inner and outer diameters, so that the sealing leakage cannot be avoided, and the quality of the filter and the dust collector is reduced.

The improved annular sealing rib 4 has greatly raised sealing performance and raised performance of the filter and the dust collector.

The end cover 2 manufactured by injection molding is a cover made of soft rubber-coated hard plastic, the hard plastic 5 of the end cover plays a role of a framework, the hard plastic 5 of the end cover firstly passes through an injection mold, after injection molding, the hard plastic 5 of the end cover is coated with the rubber-coated elastomer plastic 6 of the end cover by the rubber-coated injection mold, and the annular sealing rib 4 and the rubber-coated elastomer plastic 6 of the end cover are integrated, so that the end cover 2 with the annular sealing rib 4 with qualified size and shape is manufactured at the same time.

The manufactured end cover 2 with the soft rubber annular sealing rib 4 and the dust barrel 3 are arranged together, so that the annular sealing rib 4 of the end cover 2 is in interference fit with the barrel wall of the dust barrel 3, and the sealing effect of the filter and the dust collector in the assembly state at the position is achieved when the filter and the dust collector are used or not used.

Claims

1. A prevent seal structure of leaking, includes the end cover, its characterized in that: the lower part of the end cover (2) is sleeved with a dust barrel (3), and the outer edge of the lower part of the end cover (2) at the joint of the end cover (2) and the dust barrel (3) is provided with an annular sealing rib (4).

2. A leak preventing sealing structure according to claim 1, wherein: the annular sealing rib (4) is at least provided with one layer.

3. A leakage prevention seal structure according to claim 1 or 2, wherein: one end of the annular sealing rib (4) is connected with the outer edge of the lower part of the end cover (2), and the other end of the annular sealing rib (4) is in interference fit with the inner wall of the dust cylinder (3).

4. A leak preventing sealing structure according to claim 3, wherein: the annular sealing rib (4) and the end cover (2) are integrally formed by injection molding.