CN220247142U

CN220247142U - Sealing ring

Info

Publication number: CN220247142U
Application number: CN202321596780.1U
Authority: CN
Inventors: 朱大伟; 田卫平; 张州; 张松
Original assignee: ZHEJIANG YONGDA ELECTRIC POWER INDUSTRY CO LTD
Current assignee: ZHEJIANG YONGDA ELECTRIC POWER INDUSTRY CO LTD
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-12-26
Anticipated expiration: 2033-06-21

Abstract

The utility model relates to the technical field of inspection wells, in particular to a sealing ring. Comprising the following steps: the sealing ring comprises a sealing ring body, wherein a boss is arranged on the periphery of the sealing ring body, a plurality of convex rings are arranged on one side of the boss, a groove is formed between the boss and the convex rings, the grooves are also formed between the adjacent convex rings, namely, the grooves and the convex rings are arranged at intervals, sealing rings are arranged in the grooves, and sealing strips are arranged between the adjacent sealing rings. The sealing ring provided by the utility model has the advantages of good sealing effect, good tightness and convenience in installation and disassembly.

Description

Sealing ring

Technical Field

The utility model relates to the technical field of manhole sealing, in particular to a sealing ring.

Background

The inspection well is a well-shaped structure which is formed by integrally injection molding or bricked plastic for inspection, is used for facilitating regular inspection, cleaning and dredging or well-descending operation, and is arranged at the junction, the turning part, the pipe diameter or gradient change part, the water drop part and the like of a drainage pipeline of which the outer diameter is not more than 800mm and the embedded depth is not more than 6m of a buried plastic drainage pipeline in the range of a building district.

Chinese patent CN201214827Y discloses an inspection well, the inspection well is a spliced inspection well or an integral inspection well, wherein one of the spliced inspection well has a structure that a connecting support is connected to a base, a connecting ring is connected to the connecting support, the side surface of the connecting ring is communicated with an underground sewer pipe, the upper end of the connecting ring is connected with other connecting rings through the connecting support, and a well cover is arranged at the top end of the inspection well.

However, after the technical scheme is used for a long time, the roadbed around the well cover plate of the inspection well has no fixed structure between the branch pipe and the well seat, so that the phenomenon of sinking and collapsing is very easy to occur due to the fact that the axial size of the branch pipe is reduced due to shrinkage of the branch pipe pipeline, and the scheme has no sealing piece to seal the branch pipe and the well seat, so that the sealing effect is poor, and sewage leakage is caused to pollute soil.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a sealing ring, wherein the sealing ring body is matched with a sealing ring, a boss and a convex ring structure arranged on the sealing ring body to realize the functions of tightly mounting and sealing a branch pipe and a shaft, so that the problem of soil pollution caused by sewage leakage due to sinking of the branch pipe caused by axial dimension reduction generated by shrinkage of a branch pipe pipeline is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a seal ring, comprising: the sealing ring comprises a sealing ring body, wherein a boss is arranged on the periphery of the sealing ring body, a plurality of convex rings are arranged on one side of the boss, grooves for installing sealing rings are formed between the boss and the convex rings and between the adjacent convex rings, and the outer diameter sizes of the boss and the convex rings are in descending arrangement.

Preferably, the boss and the plurality of convex rings are axially and sequentially arranged along the sealing ring body, the boss is close to the outer side end part of the sealing ring body, and the convex ring positioned at the innermost side of the sealing ring body extends to the inner side end part of the sealing ring body.

Preferably, the outer peripheral walls of the boss and the groove are provided with inclination.

Preferably, the slope of the peripheral wall of the boss is consistent with the slope of the inner wall of the branch pipe mounting hole on the shaft.

Preferably, the slopes of the peripheral walls of the plurality of grooves are the same.

Preferably, the peripheral walls of the convex rings are provided with inclination.

Preferably, in the non-extrusion state, the outer diameter of the plurality of sealing rings is larger than the inner diameter of the branch pipe mounting hole on the shaft corresponding to the inner wall position.

The utility model has the beneficial effects that:

(1) According to the utility model, the groove is formed in the sealing ring body, the sealing rings are arranged in the groove to be matched with sealing strips arranged between the adjacent sealing rings, the arrangement mode of the boss and the sealing rings and the change of the outer diameter size are combined, and the shape of the outer wall of the sealing ring is matched with the shape of the inner wall of the branch pipe hole, so that a better sealing effect can be achieved when the sealing ring extrudes the sealing ring, and the sealing reliability of the sealing ring is ensured.

(2) According to the utility model, the sealing ring body is provided with the sealing rings, the external dimensions of the sealing rings are gradually decreased, and when the sealing rings are in a non-extrusion state, the external dimensions of the sealing rings are larger than the internal dimensions of the corresponding inner wall positions of the branch pipe mounting holes on the shaft, and after the sealing rings are extruded and deformed, the outer walls of the sealing rings are clung to the inner walls of the branch pipe mounting holes, so that the gradual continuous sealing in the axial direction is realized, and the sealing effect is further improved.

In conclusion, the utility model has the advantages of good sealing effect, good compactness, convenient installation and disassembly and the like.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the connection of the seal ring to the manifold of the present utility model;

FIG. 3 is a schematic illustration of the installation of a seal ring with a wellbore in accordance with the present utility model;

FIG. 4 is a schematic view of a seal ring installed in a manifold mounting bore.

Reference numerals: 1-a sealing ring body, 11-a boss; 12-convex rings; 13-grooves; 2-sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Examples

As shown in fig. 1 to 4, the present embodiment provides a seal ring including: the sealing ring comprises a sealing ring body 1, wherein a boss 11 is arranged on the periphery of the sealing ring body, a plurality of convex rings 12 are arranged on one side of the boss 11, grooves 13 for installing the sealing ring 2 are formed between the boss 11 and the convex rings 12 and between the adjacent convex rings 12, and the outer diameter sizes of the boss 11 and the plurality of convex rings 12 are in decreasing arrangement.

In this embodiment, the boss 11 and the plurality of convex rings 12 are axially and sequentially arranged along the seal ring body 1, the boss 11 is close to an outer end of the seal ring body 1, and the convex ring 12 located at the innermost side of the seal ring body 1 extends to an inner end of the seal ring body 1, so that the convex ring 12 at the inner end of the seal ring body 1 achieves a primary sealing effect.

A certain distance is reserved between the boss 11 and the outer side end part of the sealing ring body 1, so that after the sealing ring is welded with the end part of the branch pipe, the branch pipe is conveniently and fixedly connected with the shaft through a fastener, the sealing ring is propped against the outer side of the shaft, and the service reliability and the service life of the sealing ring are ensured.

Meanwhile, in this embodiment, the peripheral walls of the boss 11 and the groove 13 are provided with inclination, and the inclination of the peripheral wall of the boss is consistent with the inclination of the inner wall of the branch pipe installation hole on the shaft, and the boss is axially provided with a certain taper, so that the tightness of the branch pipe installation is improved.

In addition, in this embodiment, the slopes of the peripheral walls of the plurality of grooves 13 are the same, so that the radial stress is kept consistent when the seal ring 2 is pressed and sealed, the deformation in the axial direction is avoided, the degree of pressing deformation in the radial direction is ensured, and the sealing effect is ensured.

In this embodiment, the outer peripheral walls of the plurality of convex rings 12 are provided with a slope, so that the plurality of convex rings 12 realize a step-by-step sealing and blocking in the axial direction, similar to a labyrinth seal structure.

The sealing ring and the branch pipe can be preferably made of PE.

In this embodiment, when the sealing ring is in a non-extrusion state, the outer diameter of the plurality of sealing rings 2 is greater than the inner diameter of the corresponding inner wall of the branch pipe installation hole on the shaft, so as to ensure that the sealing ring can generate a radial extrusion effect when being installed in the branch pipe hole, and improve the tightness of the branch pipe installation.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A seal ring, comprising: the sealing ring comprises a sealing ring body, wherein a boss is arranged on the periphery of the sealing ring body, a plurality of convex rings are arranged on one side of the boss, grooves for installing sealing rings are formed between the boss and the convex rings and between the adjacent convex rings, and the outer diameter sizes of the boss and the convex rings are in descending arrangement.

2. The sealing ring according to claim 1, wherein the boss and the plurality of convex rings are sequentially arranged along the axial direction of the sealing ring body, the boss is arranged close to the outer side end part of the sealing ring body, and the convex ring located at the innermost side of the sealing ring body extends to the inner side end part of the sealing ring body.

3. A sealing ring according to claim 1, wherein the peripheral walls of the boss and the groove are each provided with a taper.

4. A seal ring according to claim 1, wherein the slope of the peripheral wall of the boss is aligned with the slope of the inner wall of a leg hole in the wellbore.

5. A sealing ring according to claim 1, wherein the slope of the peripheral walls of a plurality of said grooves is the same.

6. A sealing ring according to claim 1, wherein the peripheral walls of a plurality of said collars are provided with a taper.

7. The seal ring of claim 1, wherein in the non-squeezed state, the plurality of seal rings have an outer diameter dimension greater than an inner diameter dimension of a corresponding inner wall location of a leg hole in the wellbore.