CN210217778U - Extrusion seal type sealing gasket for caulking of shield tunnel segment - Google Patents
Extrusion seal type sealing gasket for caulking of shield tunnel segment Download PDFInfo
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- CN210217778U CN210217778U CN201921168483.0U CN201921168483U CN210217778U CN 210217778 U CN210217778 U CN 210217778U CN 201921168483 U CN201921168483 U CN 201921168483U CN 210217778 U CN210217778 U CN 210217778U
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- caulking
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Abstract
The utility model relates to an extrusion canned type shield tunnel section of jurisdiction caulking is sealed fills up, including the sealing gasket body, the sealing gasket body sets up in section of jurisdiction caulking inslot, top, shoulder and the bottom of sealing gasket body all are equipped with barb form lug, barb form lug is corresponding to top lateral wall, shoulder lateral wall and the sealed block of bottom lateral wall of section of jurisdiction caulking slot. The utility model discloses configuration optimization, the durable longe-lived of material, sealed water-proof effects is good, is equipped with on the sealed pad body and makes it and section of jurisdiction caulking groove block to barb form lug more, prevents that sealed pad body from breaking away from section of jurisdiction caulking groove, can avoid the operation production risk that the caulking sealing material is ageing to drop in the tunnel.
Description
Technical Field
The utility model relates to an extrusion canned type shield tunnel section of jurisdiction caulking is sealed fills up for the sealed at shield tunnel section of jurisdiction caulking position.
Background
The inside caulking joint of shield tunnel section of jurisdiction mainly uses two ingredient polysulfide sealant or polyurethane sealant 4 to seal, in order that the sealant can not the crossflow flow to flow into the section of jurisdiction clearance 2, puts into foam stick 5 in advance before embedding sealant 4 (see figure 1). However, along with the operation of the tunnel, the sealant is easy to age and fall out of the caulking groove, and the safety of vehicles operated in the later period is seriously influenced. Once the sealant falls off from the railway and subway tunnels, the electric shock protection of the train can be caused, and the train can be stopped. Although the vault of the highway tunnel is provided with the fireproof plate, the operation safety is not influenced, but water leakage easily occurs at the caulking position due to the aging of the sealant, and the operation experience of the tunnel is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the aforesaid not enough, provide a sealed pad of extrusion canned type shield tunnel section of jurisdiction caulking, its three first EPT rubber materials long service life, the structure is more reasonable, and sealed water-proof effects is better, can avoid the operation production risk that the caulking sealing material is ageing to drop to the tunnel.
The purpose of the utility model is realized like this:
the utility model provides a sealed pad of extrusion canned type shield tunnel section of jurisdiction caulking, includes the sealing gasket body, the sealing gasket body sets up in section of jurisdiction caulking inslot, top, shoulder and the bottom of sealing gasket body all are equipped with barb form lug, barb form lug is corresponding to the sealed block of top lateral wall, shoulder lateral wall and the bottom lateral wall of section of jurisdiction caulking groove.
Preferably, the barb-shaped lugs are arranged in pairs and symmetrically arranged on two sides of the sealing gasket body.
Preferably, the bottom of the sealing gasket body is further provided with a limiting bar, and the limiting bar is embedded into the bottom surface of the bottom of the sealing gasket body.
Preferably, the limiting bar is a hard PP core material.
Preferably, the sealing gasket body is an ethylene propylene diene monomer rubber sealing gasket.
The utility model has the advantages that:
the utility model discloses configuration optimization, the durable longe-lived of material, sealed water-proof effects is good, is equipped with on the sealed pad body and makes it and section of jurisdiction caulking groove block to barb form lug more, prevents that sealed pad body from breaking away from section of jurisdiction caulking groove, can avoid the operation production risk that the caulking sealing material is ageing to drop in the tunnel.
Drawings
Fig. 1 shows a conventional caulking sealing method for a duct piece.
Fig. 2 is a schematic view of the installation of the sealing gasket of the present invention.
Fig. 3 is a sealing schematic diagram after the installation of the sealing gasket of the present invention is completed.
Fig. 4 is a schematic view of the sealing gasket of the present invention.
Wherein: a gasket body 1; a segment caulking groove 2; barbed tabs 1.1; a limiting bar 3; 4, sealing gum; a foam rod 5.
Detailed Description
Referring to fig. 1-4, the utility model relates to an extrusion canned type shield tunnel section of jurisdiction caulking is sealed fills up, including sealed gasket body 1, sealed gasket body 1 sets up in section of jurisdiction caulking slot 2, top, shoulder and the bottom of sealed gasket body 1 all are equipped with barb form lug 1.1, barb form lug 1.1 is corresponding to section of jurisdiction caulking slot 2's top lateral wall, shoulder lateral wall and the sealed block of bottom lateral wall.
The barb-shaped lugs 1.1 are arranged in pairs and symmetrically arranged on two sides of the sealing gasket body 1.
The barb-shaped protruding pieces 1.1 located on the two sides of the top of the sealing gasket body 1 are provided with 2 pairs, the barb-shaped protruding pieces 1.1 located on the two sides of the shoulder of the sealing gasket body 1 are provided with 1 pair, and the barb-shaped protruding pieces 1.1 located on the two sides of the bottom of the sealing gasket body 1 are provided with 2 pairs.
The bottom of the sealing pad body 1 is also provided with a limiting rod 3, and the limiting rod 3 is embedded into the bottom surface of the bottom of the sealing pad body 1. The expansion force of the bottom of the gasket is increased.
The limiting bar 3 is a hard PP core material.
Adopt the sealed principle of extrusion formula, sealed pad body adopts the EPT rubber that durability performance is excellent, extrudees into section of jurisdiction caulking groove 2 with sealing pad body 1 through external force, in the installation is accomplished the back with stereoplasm PP core 3 embedding sealing pad bottom to increase the bulging force of sealed pad bottom and avoid later stage sealing pad body to deviate from section of jurisdiction caulking groove 2.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a sealed pad of extrusion canned type shield tunnel section of jurisdiction caulking, includes sealing gasket body (1), sealing gasket body (1) sets up in section of jurisdiction caulking slot (2), its characterized in that: the top, shoulder and the bottom of sealing pad body (1) all are equipped with barb form lug (1.1), barb form lug (1.1) are corresponding to the sealed block of top lateral wall, shoulder lateral wall and the bottom lateral wall of section of jurisdiction caulking groove (2).
2. The caulking gasket of the segment of the extrusion sealing type shield tunnel according to claim 1, wherein: the barb-shaped lugs (1.1) are arranged in pairs and symmetrically arranged on two sides of the sealing gasket body (1).
3. The caulking gasket of the segment of the extrusion-sealed type shield tunnel according to claim 1 or 2, wherein: the bottom of the sealing pad body (1) is also provided with a limiting rod (3), and the limiting rod (3) is embedded into the bottom surface of the bottom of the sealing pad body (1).
4. The caulking gasket of the segment of the extrusion sealing type shield tunnel according to claim 3, wherein: the limiting bar (3) is a hard PP core material.
5. The caulking gasket of the segment of the extrusion sealing type shield tunnel according to claim 1, wherein: the sealing gasket body is an ethylene propylene diene monomer rubber sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168483.0U CN210217778U (en) | 2019-07-24 | 2019-07-24 | Extrusion seal type sealing gasket for caulking of shield tunnel segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168483.0U CN210217778U (en) | 2019-07-24 | 2019-07-24 | Extrusion seal type sealing gasket for caulking of shield tunnel segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217778U true CN210217778U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921168483.0U Active CN210217778U (en) | 2019-07-24 | 2019-07-24 | Extrusion seal type sealing gasket for caulking of shield tunnel segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922643A (en) * | 2021-04-21 | 2021-06-08 | 郑州地铁集团有限公司 | Shield interval caulking waterproof structure and method thereof |
-
2019
- 2019-07-24 CN CN201921168483.0U patent/CN210217778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922643A (en) * | 2021-04-21 | 2021-06-08 | 郑州地铁集团有限公司 | Shield interval caulking waterproof structure and method thereof |
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