CN212941825U

CN212941825U - Sealing structure of water treatment filter flask

Info

Publication number: CN212941825U
Application number: CN202021451200.6U
Authority: CN
Inventors: 王晨宇; 王建辉; 杨华杰
Original assignee: Ningbo Sonho Electric Co ltd
Current assignee: Ningbo Sonho Electric Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-13
Anticipated expiration: 2030-07-22

Abstract

The sealing structure of the water treatment filter bottle comprises a filter bottle cover and a filter bottle body and is characterized in that a bidirectional sealing ring is arranged between the filter bottle cover and the filter bottle body and is integrally formed by an upper axial sealing ring, a lower axial sealing ring and a middle radial inclined sealing ring. The two-way sealing ring realizes axial and radial two-way sealing and double sealing, can be used for resisting and discharging water pressure, can effectively resist low-pressure impact due to radial slope sealing, reduces the dismounting torsion, and can reduce the installation error caused by size error when the filter element is replaced. The bidirectional sealing ring is not easy to damage, cannot fall off and lose, and prolongs the service life.

Description

Sealing structure of water treatment filter flask

Technical Field

The utility model relates to a water treatment filter specifically is a seal structure of filter flask.

Background

The filter flask of the water treatment device must be sealed by a sealing element for preventing leakage, the currently used sealing element is a commonly used O-shaped sealing ring, and the O-shaped sealing ring is screwed and elastically extruded to enhance the sealing performance. However, the filter element of the water treatment device filter has a fixed service life, the filter element must be replaced according to needs, in the process of replacing the filter element, if the filter element is rotated too tightly last time for preventing leakage, the filter element is not easy to be unscrewed and replaced, and in the process of replacing the filter element, because the size error and the installation error of the filter element are easy to leak water, the filter water leakage becomes a difficult problem of the leakage of the water treatment device, and one of the technical problems which must be solved in the use process is solved.

Disclosure of Invention

The utility model discloses rely on the sealing member pressurized to above-mentioned ordinary O shape sealing washer, elasticity screws extrusion seal's characteristic, easy seepage problem when installation or dismantlement, designs one kind and reduces rotatory torsion and produce the extruded sealing device of elasticity.

The sealing structure of the water treatment filter bottle comprises a filter bottle cover and a filter bottle body and is characterized in that a bidirectional sealing ring is arranged between the filter bottle cover and the filter bottle body and is integrally formed by an upper axial sealing ring, a lower axial sealing ring and a middle radial inclined sealing ring.

The upper axial sealing ring is sleeved in the circumference of the filter bottle cap, and the lower axial sealing ring is sleeved outside the circumference of the upper end of the filter bottle body.

The axial section of the bidirectional sealing ring is a [ shaped longitudinal section.

The upper and lower axial sealing rings are clamped on the circumference of the outward convex of the opening end of the filter flask body.

An axial pressure relief valve is arranged in the filter cover and comprises a pressure relief button, a pressure relief spring, a pressure relief opening sealing gasket and a locking screw rod.

The advantages of the above design are: the two-way sealing ring realizes axial and radial two-way sealing and double sealing, can be used for resisting and discharging water pressure, can effectively resist low-pressure impact due to radial slope sealing, reduces the dismounting torsion, and can reduce the installation error caused by size error when the filter element is replaced. The bidirectional sealing ring is not easy to damage, cannot fall off and lose, and prolongs the service life.

Drawings

FIG. 1 is an exploded view of a water treatment filter bottle.

FIG. 2 is a front view of a water treatment filter flask.

FIG. 3 is a schematic sectional view A-A and a schematic flow direction of water in FIG. 2.

Fig. 4 is a B sectional view of fig. 3.

Detailed Description

The structure and function of the present invention will be briefly described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the water treatment filter flask comprises a filter flask cover 1, a bidirectional sealing ring 2, a filter flask body 3, a filter element 4 and an axial pressure relief valve 5. The filter bottle cap 1 is provided with a water inlet 11 and a water outlet 10 which are connected with an external water inlet and outlet pipe, the bidirectional sealing ring 2 is arranged between the filter bottle cap 1 and the filter bottle body 3, the filter bottle cap 1 and the filter bottle body 3 are sealed by screwing the bidirectional sealing ring 2 through threads, and the filter bottle body 3 is externally provided with a wrench clamping rib 31 for clamping and reinforcing the filter bottle cap 1 and the filter bottle body 3.

As shown in fig. 3, the arrow → indicates the water flow direction, the water flow flows into the filter flask body 3 from the water inlet 11, the filter element 4 is disposed in the middle of the filter flask body, the external pressure type filter element is selected in this embodiment, the flowing water flowing into the filter flask body 3 enters the filter element 4 under the action of pressure difference, and flows to the water outlet 10 from the middle upper end of the filter element 4 after being filtered.

As shown in fig. 3 and 4, the bidirectional sealing ring 2 is composed of an upper axial sealing ring 21, a lower axial sealing ring 23 and a middle radial gradient sealing ring 22. The axial section of the bidirectional sealing ring 2 is a [ shape section. The upper axial sealing ring 21 is sleeved in the circumference of the filter bottle cap 1, and the lower axial sealing ring 23 is sleeved outside the circumference of the upper end of the filter bottle body 3. The upper and lower axial sealing rings are clamped on the circumference 16 of the filter flask body 3 with the opening end protruding outwards, and bidirectional and double sealing is implemented at the interface of the filter flask cover 1 and the filter flask body 3 so as to improve the sealing performance. Two-way sealing ring 2 establishes in the upper end of

filter flask lid

1 and 3 connecting thread of filter flask body, and is irrelevant with threaded connection, does not influence threaded connection's elasticity degree, and the chucking is at 3 upper end openings of filter flask bodies department when dismantling filter core 4, and two-way sealing ring 2 does not drop, effectively prolongs two-way sealing ring's life.

As shown in fig. 1 and 3, an axial pressure relief valve 5 is further arranged in the filter bottle cap 1, and comprises a pressure relief button 12, a pressure relief spring 13, a pressure relief opening sealing gasket 14 and a fixing screw 15. The filter flask body 3 internal and external pressure difference is adjusted to its mainly used, when unpicking and washing filter core 4, presses the water pressure difference between the adjustable filter flask lid 1 of axial relief valve 5 and the filter flask body 3, can reduce and rotate torsion, conveniently opens filter flask lid 1 and carries out unpicking and washing change of filter core 4, also has the effect of protection two-way sealing ring 2, prolongs two-way sealing ring 2's life.

Claims

1. The utility model provides a seal structure of water treatment filter flask, includes filter flask lid (1) and filter flask body (3), characterized by establishes two-way sealing ring (2) between filter flask lid (1) and filter flask body (3), two-way sealing ring (2) constitute integratively by upper axial sealing washer (21), lower axial sealing washer (23) and middle radial oblique sealing washer (22).

2. The sealing structure of a water treatment filter flask according to claim 1, wherein the axial section of the bidirectional sealing ring (2) is a longitudinal [ shape ] section.

3. The sealing structure of the water treatment filter flask according to claim 1, wherein the upper axial sealing ring (21) of the bidirectional sealing ring (2) is sleeved in the circumference of the filter flask cover (1), and the lower axial sealing ring (23) is sleeved outside the circumference of the upper end of the filter flask body (3).

4. A sealing structure of a water treatment filter flask according to claim 1, wherein the upper and lower axial sealing rings are clamped on the circumference of the outward protrusion (16) of the opening end of the filter flask body (3).

5. The sealing structure of the water treatment filter flask according to claim 1, wherein an axial pressure release valve (5) is arranged in the filter flask cover (1), and the axial pressure release valve (5) comprises a pressure release button (12), a pressure release spring (13), a pressure release opening sealing gasket (14) and a locking screw (15).