CN209942848U - Elastic sealing gasket convenient to assemble - Google Patents
Elastic sealing gasket convenient to assemble Download PDFInfo
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- CN209942848U CN209942848U CN201920437230.2U CN201920437230U CN209942848U CN 209942848 U CN209942848 U CN 209942848U CN 201920437230 U CN201920437230 U CN 201920437230U CN 209942848 U CN209942848 U CN 209942848U
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Abstract
The utility model discloses an elastic sealing gasket convenient to assembly, including elastic sealing gasket, with the lower terminal surface of prefabricated section of jurisdiction contact, with the up end of another elastic sealing gasket contact, be equipped with the recess on elastic sealing gasket's the lower terminal surface, the recess is located elastic sealing gasket department of buckling. The arrangement of the groove reduces the rigidity of the corner of the elastic sealing gasket and the required assembly force, so that the installation is more convenient, the extrusion is more sufficient, and the waterproof performance is higher.
Description
Technical Field
The utility model relates to a tunnel engineering field, concretely relates to elastic sealing pad convenient to assembly.
Background
With the vigorous development and utilization of underground space, the shield mechanism is widely applied to various underground projects as a tunnel construction mode with small environmental influence, high mechanization degree and high construction quality, such as a cross-river tunnel, a sea-crossing tunnel, an urban subway tunnel, a water delivery tunnel, an electric power tunnel, a deep drainage tunnel and the like, and in the face of complex geological hydrological conditions, although the practical functions are different, the shield mechanism has high requirements on the waterproof performance of the shield tunnel, particularly the electric power tunnel and the subway tunnel, wherein the waterproof performance of seams of segments is the most important part. The existing technology in practical application is non-expandable synthetic rubber, the waterproof purpose is achieved by mainly utilizing the compaction of joint materials, ethylene propylene diene monomer rubber materials are generally molded into a certain shape to be made into elastic sealing gaskets which are used as main waterproof materials, the ethylene propylene diene monomer elastic sealing gaskets are stuck in specific waterproof sealing gasket grooves in tunnel segment in engineering, the waterproof function is obtained by squeezing the elastic sealing gaskets respectively stuck on two tunnel segments when the tunnel segments are assembled, the existing ethylene propylene diene monomer sealing gaskets are in thick structures, the needed assembly force is higher when the sealing gaskets are installed in mounting grooves of the tunnel segments, particularly, the needed assembly force is higher at four corner positions of the tunnel segments, a plurality of water leakage areas are the corners of the sealing gaskets, the rigidity is high, the sealing gaskets are not fully squeezed, the water leakage condition is caused, and the sealing gaskets are not easy to install, a large amount of manpower and material resources are wasted to adjust, time is consumed, the problem that extrusion is insufficient at corners is easily caused, the later stage water leakage condition is caused, and the engineering quality is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an elastic sealing pad convenient to assembly solves and is located prefabricated section of jurisdiction corner at elastic sealing pad, and the rigidity is great, difficult installation, the not tight problem of later stage extrusion.
In order to solve the technical problem, the utility model discloses a following scheme:
the utility model provides an elastic sealing gasket convenient to assembly, includes elastic sealing gasket, the lower terminal surface with the contact of prefabricated section of jurisdiction, with the up end of another elastic sealing gasket contact, be equipped with the recess on elastic sealing gasket's the lower terminal surface, the recess is located elastic sealing gasket department of buckling.
Due to the adoption of the structure, the elastic sealing gasket is in a complete strip shape, and winds the side of the tunnel segment for one circle, and is embedded into the mounting groove, the end-to-end connectors are fixedly connected into an annular shape by adopting a hot melting technology, four corners are arranged on the side of the tunnel segment, the corner needing hot melting treatment of the final elastic sealing gasket is removed, and three corners are arranged, so that the end face bending part under the strip-shaped elastic sealing gasket is provided with the groove, which is equivalent to the corner where the elastic sealing gasket is arranged on the prefabricated segment, and needs to be bent, due to the action of the groove, the stress when the corner is greatly reduced, the required assembly force is reduced, and the assembly error is ensured, so that the end face extrusion is more sufficient.
Further, as a preferred technical scheme, the groove is a right angle or a round angle.
Owing to adopt above-mentioned structure, the recess adopts right angle or fillet to carry out the chamfer and handles for elastic sealing pad installs more laborsavingly when prefabricated section of jurisdiction corner, and the contact surface of corner is more level and smooth the subsides really, can further reduce the rigidity of corner, guarantees that follow-up extrusion is more abundant tight, reinforcing waterproof performance and anti water pressure resistance ability.
Further, as a preferred technical scheme, the length value of the groove is the width value of the lower end face of the elastic sealing gasket.
Due to the adoption of the structure, the length of the groove is the same as the width value of the lower end face of the elastic sealing gasket, so that the stress is uniform when the elastic sealing gasket is installed at a corner, the upper end face of the elastic sealing gasket is smooth, and a reliable environment is provided for the tightness of subsequent extrusion.
Further, as a preferred technical scheme, the width value of the groove is 10mm-20 mm.
Due to the adoption of the structure, the width of the groove is set to be between 10mm and 20mm, the thickness requirements of two sides of the groove can be ensured, and the phenomenon that the groove is damaged due to overlarge assembling force in the subsequent extrusion process, the resilience performance is insufficient after the groove is extruded, and the waterproof performance is reduced is prevented.
Further, as a preferred technical solution, the depth value of the groove does not exceed the thickness of the elastic sealing gasket.
Due to the adoption of the structure, the depth of the groove is not more than the thickness of the elastic sealing gasket, and the optimal control is about 8mm, because the thickness of the common elastic sealing gasket is about 20mm, the depth is too large, when the later-stage extrusion cannot be ensured, the elastic sealing gasket is not damaged, and the waterproof requirement does not reach the standard.
Further, as a preferred technical scheme, a plurality of arch-shaped through holes are formed in the lower end face of the elastic sealing gasket. By adopting the structure, the lower end surface is provided with the plurality of arch-shaped through holes, so that the pressing force in the extrusion process can be further reduced.
Further, as preferred technical scheme, be equipped with two rows of through-holes on the elastic sealing gasket, first row of through-hole is close to the up end, and the second row of through-hole is located first row of through-hole below.
By adopting the structure, the elastic sealing gasket is provided with two rows of through holes, so that the assembly force in the extrusion process can be effectively reduced, and the elastic sealing gasket is convenient to install in a channel.
Further, as a preferred technical scheme, the first row of through holes and the second row of through holes are all round through holes.
By adopting the structure, the through hole is in a circular shape, the circular through hole is convenient to process, chamfering treatment is not needed, folding phenomenon is not easy to generate at corners and during extrusion, fracture is not easy to occur, and the service life of the elastic sealing gasket is prolonged.
Further, as a preferred technical scheme, the elastic sealing gasket is an ethylene propylene diene monomer rubber sealing gasket.
By adopting the structure, the ethylene propylene diene monomer rubber belongs to a non-expansive material, has lower water absorption, better processing performance, better low-temperature characteristic, high pressure resistance, corrosion resistance, better compression deformation and the like.
The utility model provides a sealing mechanism convenient to assembly, is including installing the elastic sealing pad in the first prefabricated section of jurisdiction of adjacent tunnel and the prefabricated section of jurisdiction seam crossing of second respectively, and this elastic sealing pad's lower terminal surface is installed in the mounting groove on the prefabricated section of jurisdiction seam crossing of tunnel, and the up end compresses tightly the contact each other, the utility model discloses a sealing mechanism compresses tightly each other through the sealed up end of filling up in the mounting groove of two adjacent prefabricated section of jurisdiction seam crossings departments and reaches waterproof purpose.
The utility model discloses beneficial effect who has:
1. offer the recess on banded elastic seal pad, the recess is located elastic seal pad at prefabricated section of jurisdiction corner, and when installation elastic seal pad, the rigidity and the stress of corner can reduce for the later stage compression is more abundant, and the contact surface is tighter, and waterproof performance is better.
2. Set up two rows of through-holes on the elastic sealing pad, can effectively reduce the assembly power of extrusion in-process, be convenient for install in the channel, the through-hole adopts circular shape, and circular machine tooling need not the chamfer and handles, when corner and extrusion, difficult folding phenomenon that produces is difficult for breaking, extension elastic sealing pad practical life.
3. The ethylene propylene diene monomer belongs to a non-expansive material, has low water absorption, better processability, better low-temperature characteristic, high pressure resistance, corrosion resistance, better compression deformation and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a schematic structural view of the installation of the present invention;
fig. 4 is a schematic view of the installation structure of the present invention.
Reference numerals: 1-elastic sealing gasket, 2-upper end face, 3-lower end face, 4-first row of through holes, 5-second row of through holes, 6-groove, 7-arch-shaped through holes, 8-first prefabricated pipe piece, 9-second prefabricated pipe piece and 10-installation groove
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 1 and fig. 3, the elastic sealing gasket convenient to assemble comprises an elastic sealing gasket 1, a lower end face 3 in contact with a prefabricated pipe piece, and an upper end face 2 in contact with another elastic sealing gasket 1, wherein a groove 6 is arranged on the lower end face 3 of the elastic sealing gasket 1, and the groove 6 is positioned at the bending part of the elastic sealing gasket 1.
The groove 6 is a right angle or a round angle; the length value of the groove 6 is the width value of the lower end surface 3 of the elastic sealing gasket; the width value of the groove 6 is 10mm-20 mm; the depth value of the groove 6 does not exceed the thickness of the elastic sealing gasket 1; the elastic sealing gasket 1 is an ethylene propylene diene monomer rubber sealing gasket.
Concretely, the elastic sealing gasket is a complete strip, round around tunnel section of jurisdiction side, imbed in the mounting groove, end to end interface adopts hot melt technique fixed connection to be an annular at last, there are four corners tunnel prefabricated section of jurisdiction side, detach that a corner that last elastic sealing gasket 1 needs hot melt to handle, three corner in addition, so terminal surface 2 is equipped with three recess 6 under banded elastic sealing gasket 1, be located elastic sealing gasket 1 respectively in prefabricated section of jurisdiction department of buckling, three recess 6 adopts right angle or fillet chamfer to handle, be equivalent to when banded elastic sealing gasket installs, at the three corner of prefabricated section of jurisdiction, because recess 6's effect, stress when the corner can significantly reduce, reduce the assembly force that needs, guarantee the error of assembly, make when follow-up two elastic sealing gasket terminal surface extrusions more abundant, water-proof effects is better. All the parameters of three recess 6 are the same, and the length of recess 6 is the same with the 3 width values of lower terminal surface of elastic sealing pad, guarantees when the corner installation, and stress is even for the upper end face of elastic sealing pad is level and smooth, provides reliable environment for follow-up extruded leakproofness. The width of the groove 6 is set between 10mm-20mm, so that the thickness requirements of two sides of the groove 6 can be ensured, and the phenomenon that the resilience performance is insufficient and the waterproof performance is reduced after extrusion due to the fact that the groove is damaged due to overlarge assembling force in the subsequent extrusion process is prevented. The depth of the groove 6 is not more than the thickness of the elastic sealing gasket, and is preferably controlled to be about 8mm, because the thickness of the common elastic sealing gasket is about 20mm, the depth is too large, when the later-stage extrusion cannot be guaranteed, the elastic sealing gasket cannot be damaged, and the waterproof requirement does not reach the standard. The utility model discloses three recess 6 adopts right angle processing, and right angled triangle just matches with the prefabricated section of jurisdiction side corner in tunnel to when the installation, the contact surface of corner more levels and closely reality, can further reduce the rigidity of corner, guarantee that follow-up extrusion is more abundant tight, reinforcing waterproof performance and anti water pressure performance. The elastic sealing gasket is made of ethylene propylene diene monomer, and the material belongs to a non-expansive material, is low in water absorption rate, has better processability, better low-temperature characteristic, high-pressure resistance, corrosion resistance, better compression deformation and the like.
Example 2
As shown in fig. 2, a plurality of arch-shaped through holes 9 are arranged on the lower end surface 3 of the elastic sealing gasket 1; the elastic sealing gasket is provided with two rows of through holes, the first row of through holes 4 are close to the upper end face 2, the second row of through holes 5 are located below the first row of through holes 4, the two rows of through holes are all set to be circular through holes, the first row of through holes 4 are four, the upper end face center line and the lower end face center line are symmetrically distributed as an axis, the second row of through holes 5 are provided with six through holes, concretely, the lower end face of the elastic sealing gasket is provided with a plurality of arch-shaped through holes, the elastic sealing gasket is convenient to install in a mounting groove of a prefabricated pipe piece, required assembly force is reduced, assembly force in the extrusion process can be effectively reduced, the elastic sealing gasket 1 convenient to install in a channel, the two rows of through holes are arranged and adopt a circular shape, the circular through holes are convenient to process, chamfering treatment is not needed, folding.
As shown in figure 4, the sealing mechanism convenient to assemble comprises elastic sealing gaskets 1 which are respectively installed at the joints of first prefabricated pipe pieces 8 and second prefabricated pipe pieces 9 of adjacent tunnels, the lower end faces 3 of the elastic sealing gaskets 1 are installed in installation grooves 10 on the joints of the prefabricated pipe pieces of the tunnels, and the upper end faces 2 are mutually pressed and contacted. Sealing mechanism compresses tightly each other through the sealed up end that fills up in the mounting groove of two adjacent prefabricated section of jurisdiction seams departments and reaches waterproof purpose, and the extrusion is tighter, and water-proof effects is better.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an elastic sealing gasket convenient to assembly, includes elastic sealing gasket (1), with lower terminal surface (3) of prefabricated section of jurisdiction contact, with up end (2) of another elastic sealing gasket (1) contact, its characterized in that, be equipped with recess (6) on elastic sealing gasket (1) lower terminal surface (3), recess (6) are located elastic sealing gasket (1) department of buckling.
2. An elastic gasket for facilitating assembly according to claim 1, characterised in that the groove (6) is right-angled or rounded.
3. An elastic sealing gasket facilitating assembly according to claim 2, characterised in that the length of the groove (6) is the same as the width of the lower end surface (3) of the elastic sealing gasket (1).
4. An elastic gasket for facilitating assembly according to claim 2, characterised in that the width of the groove (6) is between 10mm and 20 mm.
5. An elastic sealing gasket facilitating assembly according to claim 2, characterised in that the depth of the groove (6) does not exceed the thickness of the elastic sealing gasket (1).
6. An elastic gasket for facilitating assembly according to claim 1, characterised in that the lower end face (3) of the elastic gasket (1) is provided with a plurality of arched through holes (7).
7. An elastic sealing gasket convenient to assemble according to claim 1, characterized in that the elastic sealing gasket (1) is provided with two rows of through holes, the first row of through holes (4) is close to the upper end face (2), and the second row of through holes (5) is positioned below the first row of through holes (4).
8. An elastic gasket for facilitating assembly according to claim 7, characterised in that the through holes of the first row of through holes (4) and the through holes of the second row of through holes (5) are circular through holes.
9. An elastic gasket for facilitating assembly according to claim 1, characterised in that the elastic gasket (1) is an ethylene propylene diene monomer gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437230.2U CN209942848U (en) | 2019-04-02 | 2019-04-02 | Elastic sealing gasket convenient to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437230.2U CN209942848U (en) | 2019-04-02 | 2019-04-02 | Elastic sealing gasket convenient to assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209942848U true CN209942848U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437230.2U Active CN209942848U (en) | 2019-04-02 | 2019-04-02 | Elastic sealing gasket convenient to assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209942848U (en) |
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2019
- 2019-04-02 CN CN201920437230.2U patent/CN209942848U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 669, Xingyuan 10 road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Patentee after: Jitong Intelligent Equipment Co.,Ltd. Address before: No. 669, Xingyuan 10 road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Patentee before: CHENGDU JITONG ROAD AND BRIDGE TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |