CN212054696U - Sealing device for hinged part of shield tunneling machine - Google Patents
Sealing device for hinged part of shield tunneling machine Download PDFInfo
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- CN212054696U CN212054696U CN202020519608.6U CN202020519608U CN212054696U CN 212054696 U CN212054696 U CN 212054696U CN 202020519608 U CN202020519608 U CN 202020519608U CN 212054696 U CN212054696 U CN 212054696U
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Abstract
The utility model relates to a sealing device for shield constructs articulated department of machine, include: a plurality of air bags which are arranged on the surface of the second connecting part at intervals and are made of elastic materials; the sealing element is correspondingly and fixedly arranged at the top of the air bag and is attached to the inner wall of the first connecting part; and the inflation channel is communicated with the interior of the air bag and partially protrudes into the second connecting part, the air bag is inflated through the inflation channel to increase the volume of the air bag, and then the air bag pushes the sealing element upwards, so that the sealing element is tightly attached to the inner wall of the first connecting part, and a gap between the first connecting part and the second connecting part is blocked. The utility model discloses the effectual problem of having solved the sealing strip and changing the difficulty in the work progress utilizes the gasbag to compensate the sealing strip of wearing and tearing to avoid changing the sealing strip of wearing and tearing when the construction, can guarantee the sealing performance of the articulated department of shield body, improve the efficiency of construction, guarantee construction quality.
Description
Technical Field
The utility model relates to a building construction field refers in particular to a sealing device that is used for articulated department of shield structure machine.
Background
Along with the large-scale development of urban underground space, the shield construction technology is widely applied to construction of urban roads, underground tunnels and the like due to the advantages of small influence on overground and underground structures and the like, in order to ensure that a machine can smoothly turn in the tunneling process, the joints between the front shield, the middle shield and the tail shield are provided with the hinge devices, in order to ensure the isolation of the shield space from an excavation surface, the hinge devices are required to be provided with sealing devices to prevent muck, muddy water and slurry outside the shield from entering the shield, and meanwhile, the shield construction technology also has the function of ensuring the pressure stability of the whole excavation surface.
The articulated sealing device of present shield constructs machine mainly adopts the mode that sets up parallel round sealing strip and round gasbag, when the sealing strip wearing and tearing seriously lose sealing performance, aerify the gasbag through the interface of reserving on the gasbag, make the gasbag inflation, thereby replace the sealing strip and reach the effect of temporary seal, and then constructor gets into and demolishs the sealing strip that has worn and more renews in the shield body, gas in the gasbag is emitted after the sealing strip is changed and is accomplished, and then the shield constructs the machine and continue the operation, this kind of mode needs to change the sealing strip when the shield constructs the construction, but because installation space is narrow and small, the operation is very difficult, the gasbag is temporary seal in addition, result in gas leakage and inefficacy easily because of wearing and tearing after recycling, outside dregs and muddy water get into the shield body easily, cause the pollution of machine internal elements, consequences such as ground subside.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a sealing device for articulated department of shield constructs machine, solved the problem that the sealing strip changed the difficulty in the work progress, utilized the gasbag to compensate the sealing strip of wearing and tearing to avoid changing the sealing strip of wearing and tearing when the construction, can guarantee the sealing performance of articulated department of shield body, improve the efficiency of construction, guarantee construction quality.
The technical scheme for realizing the purpose is as follows:
the utility model provides a sealing device for shield constructs quick-witted articulated department, the shield constructs the machine and includes first connecting portion of mutual articulated and second connecting portion, and the second connecting portion part is pegged graft in first connecting portion, and this sealing device is used for the clearance between shutoff first connecting portion and the second connecting portion, and this sealing device includes:
a plurality of air bags which are arranged on the surface of the second connecting part at intervals and are made of elastic materials;
the sealing element is correspondingly and fixedly arranged at the top of the air bag and is attached to the inner wall of the first connecting part; and
the inflation channel is communicated with the interior of the air bag and partially protrudes into the second connecting part, the air bag is inflated through the inflation channel to increase the volume of the air bag, and then the air bag pushes the sealing element upwards, so that the sealing element is tightly attached to the inner wall of the first connecting part, and a gap between the first connecting part and the second connecting part is blocked.
The utility model provides a sealing device for articulated department of shield constructs machine, through aerify in to the gasbag so that hugging closely in the inner wall of first connecting portion of sealing member, after sealing member partial wear, continue to aerify in order upwards to the gasbag and push up the sealing member, make the sealing member can continue to hug closely in the inner wall of first connecting portion, utilize the change amount of gasbag volume to compensate the part that the sealing member was worn and torn promptly, the problem of the sealing member difficulty of changing in the work progress is solved, utilize the gasbag to compensate the sealing strip of wearing and tearing, thereby avoid changing the sealing strip of wearing and tearing when the construction, can guarantee the sealing performance of articulated department of shield body, construction efficiency is improved, guarantee construction quality.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and this second connecting portion peg graft and are equipped with a plurality of recesses in the surface interval of first connecting portion, and this sealing member and gasbag correspond and install in the recess, and the protruding recess of stretching out of sealing member part is laminated mutually with the inner wall with first connecting portion.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, still install in the tip of second connecting portion and erect the cross-section and be annular clamp plate including the L shape groove and the detachably that set up in the tip of second connecting portion and be L shape, and this sealing member and gasbag clamp are located between clamp plate and the L shape groove.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and this clamp plate passes through the bolt fastening in the tip of second connecting portion.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, still including corresponding the protection piece of installing in recess and L inslot, one side of this protection piece is laminated mutually with the lateral wall or the clamp plate of recess, and the opposite side of this protection piece is in the laminating of corresponding sealing member and gasbag, and the protruding inner wall that stretches out recess or L shape groove and support first connecting portion in the top of this protection piece.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and this protection piece is the nylon piece.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and this sealing member is two lip type rubber seal strip.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and this sealing member is provided with the twice.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, and control flap is installed to the tip that this inflation channel is protruding to stretch in the second connecting portion.
The utility model discloses a sealing device for articulated department of shield constructs machine's further improvement lies in, still locates the hinge ring of second connecting portion including fixed cover, and this gasbag and sealing member are all installed in the hinge ring.
Drawings
Fig. 1 is a side sectional view of the sealing device for the hinge of the shield tunneling machine of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides a sealing device for articulated department of shield constructs machine, through aerify so that hugging closely in the inner wall of first connecting portion of sealing member in to the gasbag, after sealing member partial wear, continue to aerify in order upwards to the gasbag and push up the sealing member, make the sealing member can continue to hug closely in the inner wall of first connecting portion, utilize the change amount of gasbag volume to compensate the part that the sealing member was worn and torn promptly, the problem of the sealing member difficulty of changing in the work progress has been solved, utilize the gasbag to compensate the sealing strip of wearing and tearing, thereby avoid changing the sealing strip of wearing and tearing when the construction, can guarantee the sealing performance of articulated department of shield body, construction efficiency is improved, guarantee construction quality. The sealing device for the hinged part of the shield tunneling machine of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a side sectional view of the sealing device for the hinge of the shield tunneling machine of the present invention. The sealing device for the hinged position of the shield machine according to the present invention is described below with reference to fig. 1.
As shown in fig. 1, the utility model discloses a sealing device for articulated department of shield constructs machine, shield construct the machine and include first connecting portion 21 and the second connecting portion 22 of mutual articulated, and second connecting portion 22 part is pegged graft in first connecting portion 21, and this sealing device is used for the clearance between shutoff first connecting portion 21 and the second connecting portion 22, and this sealing device includes:
a plurality of air bags 12 arranged on the surface of the second connecting part 22 at intervals, wherein the air bags 12 are made of elastic materials;
a sealing element 11 correspondingly fixed on the top of the air bag 12 and attached to the inner wall of the first connecting part 21; and
the inflation channel 121 which is communicated with the inside of the airbag 12 and partially protrudes into the second connecting portion 22 inflates the airbag 12 through the inflation channel 121 to increase the volume of the airbag 12, and the airbag 12 pushes the sealing member 11 upwards, so that the sealing member 11 is tightly attached to the inner wall of the first connecting portion 21, and the gap between the first connecting portion 21 and the second connecting portion 22 is sealed.
Specifically, a control valve 1211 is installed at an end of the inflation channel 121 protruding into the second connection portion 22.
Preferably, the seal 11 is a double lip rubber seal.
Preferably, the seal 11 is provided with two passes.
As a preferred embodiment of the present invention, the surface of the second connecting portion 22 inserted into the first connecting portion 21 is spaced apart to form a plurality of grooves, the sealing member 11 and the airbag 12 are correspondingly installed in the grooves, and the sealing member 11 partially protrudes out of the grooves to be attached to the inner wall of the first connecting portion 21.
Furthermore, the air bag sealing device further comprises an L-shaped groove which is formed at the end part of the second connecting part 22 and is L-shaped, and a pressing plate 13 which is detachably mounted at the end part of the second connecting part 22 and is annular in vertical section, wherein the sealing element 11 and the air bag 12 are clamped between the pressing plate 13 and the L-shaped groove.
Specifically, the pressing plate 13 is fixed to the end of the second connecting portion 22 by bolts, that is, the pressing plate 13 blocks the end of the L-shaped groove to form a space for installing the airbag 12 and the sealing member 11.
Furthermore, the protection device also comprises a protection block 14 correspondingly installed in the groove and the L-shaped groove, one side of the protection block 14 is attached to the side wall of the groove or the pressing plate 13, the other side of the protection block 14 is attached to the corresponding sealing element 11 and the air bag 12, the top of the protection block 14 protrudes out of the groove or the L-shaped groove and abuts against the inner wall of the first connecting part 21, the protection block 14 can fill the gap among the air bag 12, the sealing element 11 and the groove or the L-shaped groove, the sealing element 11 is prevented from deviating when the air bag 12 is lifted, and in addition, the protection block 14 can also be tightly attached to the inner wall of the first connecting part 21 to play a role in protecting the surface of the sealing element.
Specifically, the protective block 14 is a nylon block.
Preferably, a hinge ring is further included, which is fixedly sleeved on the second connecting portion 22, the airbag 12 and the sealing member 11 are both mounted on the hinge ring, and the groove and the L-shaped groove are also formed on the hinge ring.
The utility model discloses a concrete implementation method as follows:
a hinge ring is fixedly sleeved at the position where the second connecting part 22 is hinged with the first connecting part 21, and the hinge ring can be fixed in a welding manner;
a groove is formed in the hinge ring, an L-shaped groove is formed in the position, close to the end portion of the second connecting portion 22, of the hinge ring, the air bag 12 is fixed in the groove and the L-shaped groove, the protection blocks 14 are arranged in the groove and the L-shaped groove, the sealing element 11 is further mounted at the top of the air bag 12, the protection blocks 14 abut against the air bag 12 and the sealing element 11, and the sealing element 11 is prevented from being deviated in the pushing process of the air bag 12;
fixing the pressure plate 13 on the end of the second connecting part 22 through bolts to block the L-shaped groove, so that the corresponding protection block 14, the airbag 12 and the sealing element 11 are all clamped between the L-shaped groove and the pressure plate;
the shield construction is started, the sealing element 11 is partially worn in the construction process, the control valve 1211 is opened, gas is injected into the inflation channel 121, the size of the air bag 12 is increased, the sealing element 11 is pushed upwards, the sealing element 11 is continuously attached to the inner wall of the first connecting portion 21, external slurry is prevented from leaking into the shield machine, the gap between the first connecting portion 21 and the second connecting portion 22 is blocked all the time, the worn sealing element 11 does not need to be stopped and replaced in the construction process, the construction progress is not influenced, the construction efficiency is improved, and the construction quality is guaranteed.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (10)
1. The utility model provides a sealing device that is used for shield structure machine articulated department, its characterized in that, the shield structure machine includes first connecting portion and the second connecting portion of mutual articulated, and the second connecting portion part peg graft in first connecting portion, sealing device is used for the shutoff first connecting portion with the clearance between the second connecting portion, sealing device includes:
a plurality of air bags which are arranged on the surface of the second connecting part at intervals and are made of elastic materials;
the sealing element is correspondingly and fixedly arranged at the top of the air bag and is attached to the inner wall of the first connecting part; and
and the inflation channel is communicated with the interior of the air bag and partially protrudes into the second connecting part, the air bag is inflated through the inflation channel to increase the volume of the air bag, and then the air bag pushes the sealing element upwards, so that the sealing element is tightly attached to the inner wall of the first connecting part, and a gap between the first connecting part and the second connecting part is sealed.
2. The sealing device for the hinge of the shield tunneling machine according to claim 1, wherein a plurality of grooves are formed in the surface of the second connecting portion inserted into the first connecting portion at intervals, the sealing element and the airbag are correspondingly installed in the grooves, and part of the sealing element protrudes out of the grooves to be attached to the inner wall of the first connecting portion.
3. The sealing device for the hinge joint of the shield tunneling machine according to claim 2, further comprising an L-shaped groove opened at the end of the second connecting portion and having an L-shape, and a pressing plate detachably mounted at the end of the second connecting portion and having an annular vertical cross section, wherein the sealing member and the air bag are interposed between the pressing plate and the L-shaped groove.
4. The sealing device for a shield tunneling machine hinge according to claim 3, wherein the pressure plate is fixed to the end of the second connecting portion by bolts.
5. The sealing device for the hinge of the shield tunneling machine according to claim 3, further comprising a protection block correspondingly installed in the groove and the L-shaped groove, wherein one side of the protection block is attached to the side wall of the groove or the pressure plate, the other side of the protection block is attached to the corresponding sealing element and the airbag, and the top of the protection block protrudes out of the groove or the L-shaped groove and abuts against the inner wall of the first connecting portion.
6. The sealing device for a shield tunneling machine hinge joint according to claim 5, wherein the protection block is a nylon block.
7. The sealing device for the shield tunneling machine hinge joint according to claim 1, wherein the sealing element is a double-lip rubber sealing strip.
8. The sealing device for a shield tunneling machine hinge joint according to claim 1, wherein two passes are provided for the sealing member.
9. The sealing device for a shield tunneling machine hinge according to claim 1, wherein a control valve is installed at the end of the inflation channel protruding into the second connection portion.
10. The sealing device for a shield tunneling machine hinge according to claim 1, further comprising a hinge ring fixedly sleeved on the second connecting portion, wherein the air bag and the sealing element are both mounted on the hinge ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519608.6U CN212054696U (en) | 2020-04-10 | 2020-04-10 | Sealing device for hinged part of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020519608.6U CN212054696U (en) | 2020-04-10 | 2020-04-10 | Sealing device for hinged part of shield tunneling machine |
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| Publication Number | Publication Date |
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| CN212054696U true CN212054696U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020519608.6U Active CN212054696U (en) | 2020-04-10 | 2020-04-10 | Sealing device for hinged part of shield tunneling machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
| CN113339505A (en) * | 2021-06-08 | 2021-09-03 | 中铁工程装备集团有限公司 | Main drive seal protection device of heading machine |
| CN115045831A (en) * | 2022-06-23 | 2022-09-13 | 芜湖市中天密封件有限公司 | Dynamic temperature-regulating mechanical sealing element of asphalt pump and assembling method thereof |
-
2020
- 2020-04-10 CN CN202020519608.6U patent/CN212054696U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
| CN113339505A (en) * | 2021-06-08 | 2021-09-03 | 中铁工程装备集团有限公司 | Main drive seal protection device of heading machine |
| CN113339505B (en) * | 2021-06-08 | 2022-02-15 | 中铁工程装备集团有限公司 | Main drive seal protection device of heading machine |
| CN115045831A (en) * | 2022-06-23 | 2022-09-13 | 芜湖市中天密封件有限公司 | Dynamic temperature-regulating mechanical sealing element of asphalt pump and assembling method thereof |
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