CN218761381U

CN218761381U - Shield constructs radial seal spare

Info

Publication number: CN218761381U
Application number: CN202223367274.3U
Authority: CN
Inventors: 王迎光; 张坤; 徐涛; 邱刚; 马卫; 陆灵集
Original assignee: UTEC (SUZHOU) SEALING TECHNOLOGY CO LTD
Current assignee: UTEC (SUZHOU) SEALING TECHNOLOGY CO LTD
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-03-28
Anticipated expiration: 2032-12-15

Abstract

The utility model relates to a shield constructs radial seal spare, including sealing member body and sealed extension strip, the inboard of sealing member body is provided with the interior seal lip body, installs the inner core in the sealing member inner chamber, and the one side that the interior seal lip body is close to the top is provided with the cassette, goes up the cassette and is provided with O type sealing washer between the sealed extension strip that is close to top one side, and the one side that the interior seal lip body is close to the bottom is provided with down the cassette, and lower cassette is provided with down O type sealing washer between the sealed extension strip that is close to bottom one side. The utility model discloses all be provided with O type sealing washer between the interior seal lip body and sealed extension strip, under high pressure environment, when sealed extension strip received great pressure, O type sealing washer can provide resistance to compression support function, reduces the damage probability of sealed extension strip, prolongs sealed life.

Description

Shield constructs radial seal spare

Technical Field

The utility model relates to a sealing member correlation technique field especially relates to a shield constructs radial seal spare.

Background

A shield machine is a tunnel boring machine using a shield method. The shield construction method is a "shield" (referred to as a supporting segment) for constructing (laying) a tunnel while a heading machine is heading, and is different from an open construction method. Internationally, generalized shield machines can also be used in rock formations, differing only from open (non-shield) tunnel boring machines. In China, the tunnel boring machine used for the soft soil stratum is customarily called a (narrow sense) shield machine, and the tunnel boring machine used for the rock stratum is called a (narrow sense) TBM. The shield sealing element is an essential key component in the normal operation process.

Through the massive search, the publication number of the prior art is CN207278267U, and the hinge sealing device for the shield tunneling machine is disclosed, and comprises a transverse sealing block, wherein at least two sealing extension strips are distributed above the transverse sealing block, the horizontal planes of the sealing extension strips are provided with inclination angles, the angles of the inclination angles are 45-65 degrees, auxiliary corners are arranged at the top ends of the sealing extension strips, the angles of the auxiliary corners are 20-30 degrees, and anti-distortion inner cores are filled in the transverse sealing block. Therefore, during installation and use, the shaft diameter can be tightly held, looseness and sliding are avoided, and the sealing effect is good. Rely on sealed extension strip, the clearance that exists in enough effective filling hinge promotes sealed effect. The seal extension strip is provided with an inclination angle, and gaps possibly existing in further filling can be further filled, so that omission does not occur. And an independent anti-twisting inner core is arranged, so that the transverse sealing block is prevented from being twisted unnecessarily during installation and use. The whole structure is simple and convenient, and the manufacture and the use are easy.

The existing sealing extension strip lacks of a compression-resistant supporting structure, and is easy to damage when receiving large pressure in an actual high-pressure environment, so that the sealing effect is influenced.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a radial shield seal, which is more valuable in industrial applications.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a shield constructs radial seal spare.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a shield constructs radial seal spare, including sealing member body and sealed extension strip, the inboard of sealing member body is provided with the interior seal lip body, the outside of sealing member body is provided with the external seal lip body, the sealed extension strip of a plurality of has down set gradually on the interior seal lip body from last, the sealed extension strip of a plurality of all sets up towards the lopsidedness at sealing member body top, the inboard of the sealing member body in the sealed extension strip outside is provided with the sealing member inner chamber, install the inner core in the sealing member inner chamber, the one side that the interior seal lip body is close to the top is provided with the cassette, go up the cassette and be close to and be provided with O type sealing washer between the sealed extension strip of top one side, the one side that the interior seal lip body is close to the bottom is provided with down the cassette, be provided with down O type sealing washer between lower cassette and the sealed extension strip that is close to bottom one side.

As the utility model discloses a further improvement, the top of the internal seal lip body is provided with the expansion ring, and the bottom of the internal seal lip body is provided with down the expansion ring, goes up the installation of expansion ring in the mounting groove that last cassette was seted up, and the installation of lower expansion ring is in the mounting groove that the cassette was seted up down.

As a further improvement of the utility model, the external sealing lip body is provided with an external sealing convex contact part.

As a further improvement, the external sealing convex contact part is arranged in a structure of a saw-toothed bulge.

As a further improvement, the upper clamping seat on one side of the upper O-shaped sealing ring is provided with a lower avoiding groove, and the lower clamping seat on one side of the lower O-shaped sealing ring is provided with a lower avoiding groove.

As a further improvement of the utility model, the inner core is a steel wire ring.

As a further improvement, the inclination angle of the plurality of sealing extension strips towards one side of the top of the sealing element body is 20-60 degrees.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the O-shaped sealing rings are arranged between the inner sealing lip body and the sealing extension strip, and can provide a compression-resistant supporting function when the sealing extension strip is subjected to larger pressure under a high-pressure environment, so that the damage probability of the sealing extension strip is reduced, and the service life of sealing is prolonged; through the inner core that sets up in the sealing member body, can effectively strengthen the compressive capacity of sealing member body.

The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a shield radial seal of the present invention;

FIG. 2 is a schematic view of a portion of the internal structure of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fourth embodiment of the present invention.

Wherein the meanings of each reference numeral in the figures are as follows.

1. Seal extension strip of seal body 2

3. Inner seal lip body 4 and outer seal lip body

5. Inner core of inner cavity 6 of sealing element

7. Upper avoiding groove of upper clamping seat 8

9 go up O type sealing washer 10 lower cassette

O-shaped sealing ring under 11 lower avoidance groove 12

13. Upper expansion ring of outer seal boss contact part 14

15. Lower expansion ring of mounting groove 16

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in figures 1 to 5 of the drawings,

the utility model discloses a first embodiment: the utility model provides a shield constructs radial seal spare, including sealing member body 1 and sealed extension strip 2, the inboard of sealing member body 1 is provided with interior seal lip body 3, the outside of sealing member body 1 is provided with exterior seal lip body 4, from last a plurality of sealed extension strip 2 that down has set gradually on the interior seal lip body 3, the sealed extension strip 2 of a plurality of all sets up towards the one side slope at 1 top of sealing member body, the sealed extension strip 2 of a plurality of is 20 ~ 60 degrees towards the inclination of 1 top one side of sealing member body. The inner side of the sealing element body 1 at the outer side of the sealing extension strip 2 is provided with a sealing element inner cavity 5, and a steel wire ring is arranged in the sealing element inner cavity 5.

The utility model discloses the second embodiment: on the basis of the first embodiment, one side of the inner sealing lip body 3 close to the top is provided with an upper clamping seat 7, an upper O-shaped sealing ring 9 is arranged between the upper clamping seat 7 and the sealing extension strip 2 close to one side of the top, one side of the inner sealing lip body 3 close to the bottom is provided with a lower clamping seat 10, and a lower O-shaped sealing ring 12 is arranged between the lower clamping seat 10 and the sealing extension strip 2 close to one side of the bottom. An upper avoiding groove 8 is arranged on the upper clamping seat 7 on one side of the upper O-shaped sealing ring 9, and a lower avoiding groove 11 is arranged on the lower clamping seat 10 on one side of the lower O-shaped sealing ring 12. Through the structure setting of keeping away a groove, when O type sealing washer received the extrusion, can increase the deformation space of O type sealing washer, reduce its damage probability.

The utility model discloses the third embodiment: on the basis of the second embodiment, the outer sealing lip body 4 is provided with an outer sealing bulge contact part 13, and the outer sealing bulge contact part 13 is provided in a sawtooth-shaped bulge structure. The contact with the inner wall of the sealing groove can be increased by the outer sealing bead contact 13.

The utility model discloses the fourth embodiment: on the basis of the third embodiment, the top of the inner sealing lip body 3 is provided with an upper expansion ring 14, the bottom of the inner sealing lip body 3 is provided with a lower expansion ring 16, the upper expansion ring 14 is installed in an installation groove 15 formed in the upper clamping seat 7, and the lower expansion ring 16 is installed in an installation groove 15 formed in the lower clamping seat 10.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly referring to the number of technical features being grined. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate medium, or may be a communication between two elements.

The above description is only a preferred embodiment of the present invention, and should not be used to limit the present invention, it should be noted that, for those skilled in the art, without departing from the technical principle of the present invention, a plurality of improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a shield constructs radial seal spare, includes sealing member body (1) and sealed extension strip (2), the inboard of sealing member body (1) is provided with interior seal lip body (3), the outside of sealing member body (1) is provided with external seal lip body (4), from last a plurality of sealed extension strip (2), a plurality of down having set gradually on the interior seal lip body (3) sealed extension strip (2) all set up towards the one side slope at sealing member body (1) top, a serial communication port, the inboard of sealing member body (1) in the sealed extension strip (2) outside is provided with sealing member inner chamber (5), install inner core (6) in sealing member inner chamber (5), one side that interior seal lip body (3) is close to the top is provided with cassette (7), it is provided with O type sealing washer (9) to go up between cassette (7) and the sealed extension strip (2) that is close to top one side, one side that interior seal lip body (3) are close to the bottom is provided with down cassette (10), be provided with down O type sealing washer (12) between sealed extension strip (2) that extend of cassette (10) and be close to bottom one side down.

2. The shield radial seal of claim 1, characterized in that an upper expansion ring (14) is arranged at the top of the inner seal lip body (3), a lower expansion ring (16) is arranged at the bottom of the inner seal lip body (3), the upper expansion ring (14) is installed in an installation groove (15) formed in the upper clamping seat (7), and the lower expansion ring (16) is installed in an installation groove (15) formed in the lower clamping seat (10).

3. A shield radial seal according to claim 1, characterised in that the outer sealing lip body (4) is provided with an outer sealing convex contact portion (13).

4. A shield radial seal according to claim 3, characterised in that the outer sealing lobe contact portion (13) is provided as a saw tooth lobe configuration.

5. The shield radial seal of claim 1, wherein an upper clearance groove (8) is formed in the upper clamping seat (7) on one side of the upper O-shaped seal ring (9), and a lower clearance groove (11) is formed in the lower clamping seat (10) on one side of the lower O-shaped seal ring (12).

6. A shield radial seal according to claim 1, characterized in that the inner core (6) is a wire ring.

7. A shield radial seal according to claim 1, characterized in that the inclination of a number of said seal extensions (2) towards the top side of the seal body (1) is 20-60 degrees.