CN212563275U - Sealing rubber strip - Google Patents
Sealing rubber strip Download PDFInfo
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- CN212563275U CN212563275U CN202021542387.0U CN202021542387U CN212563275U CN 212563275 U CN212563275 U CN 212563275U CN 202021542387 U CN202021542387 U CN 202021542387U CN 212563275 U CN212563275 U CN 212563275U
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Abstract
The utility model provides a joint strip. The sealing rubber strip comprises a water-swelling layer and a supporting layer which are sequentially connected, wherein the water-swelling layer comprises a mounting end and an extrusion end which are deviated from each other, the mounting end is arranged to be attached to a mounting wall surface, and the extrusion end is connected with the supporting layer and is arranged to extrude the supporting layer after the water-swelling layer swells; the supporting layer is arranged to be capable of plugging a gap between the connecting wall surface and the mounting wall surface after being extruded by the extrusion end, the supporting layer further comprises two side walls which are provided with at least one arc-shaped groove, and the arc-shaped grooves on the side walls correspond to each other and extend along the length direction of the supporting layer. The beneficial effects of the utility model can include: can promote various shields such as city utility tunnel, tunnel connection, pipe connection, cast-in-place, the sealed effect of prefab, guarantee sealing performance, extension sealed life.
Description
Technical Field
The utility model relates to a sealing device technical field specifically, relates to a joint strip.
Background
With the increasing pace of urbanization development, many large cities have public problems in development, for example, municipal pipes such as water, electricity, cold, heat, gas, communication and the like are densely and hemp-flax interwoven underground and in the air of the cities, so that the waste of time and manpower resources is caused for maintenance, repair, renovation and the like, and meanwhile, the waste of resident life, factory production and the like is greatly influenced. The problem can effectively be solved, be reduced in the suitable fortune of large-scale utility tunnel, but medium and large-scale utility tunnel makes the sealing requirement high because the instability of the complexity of structure, piping lane preparation, and the sealing pressure who bears is also stronger, and current adhesive tape can not satisfy relevant demand completely on mounting structure, sealing performance.
SUMMERY OF THE UTILITY MODEL
To the not enough that exist among the prior art, the utility model aims to solve one or more problems that exist among the above-mentioned prior art. For example, an object of the present invention is to provide a joint strip, which is suitable for sealing various shields, cast-in-place components, and prefabricated components, such as joints of urban underground utility tunnel, tunnel connections, and pipe connections, and prevents external moisture and impurities from causing various physical and chemical damages and damages to the installation objects, structures, and the like.
In order to achieve the above object, the present invention provides a sealing rubber strip. The sealing rubber strip can comprise a water-swelling layer and a supporting layer which are sequentially connected, wherein the water-swelling layer can comprise a mounting end and an extrusion end which are deviated from each other, the mounting end can be attached to a mounting wall surface, and the extrusion end can be connected with the supporting layer and is arranged to extrude the supporting layer after the water-swelling layer is swelled; the supporting layer can be set to be capable of plugging a gap between the connecting wall surface and the mounting wall surface after being extruded by the extrusion end, the supporting layer can further comprise two side walls which are provided with at least one arc-shaped groove, and the arc-shaped grooves on the side walls correspond to each other and extend along the length direction of the supporting layer.
In an exemplary embodiment of the present invention, the number of the arc grooves on each sidewall may be 2 to 4.
In an exemplary embodiment of the present invention, the supporting layer may further include at least one through hole opened along a length direction of the supporting layer.
In an exemplary embodiment of the present invention, the through-hole may include a first through-hole and a second through-hole, the first through-hole may be located near a half portion of the water-swellable layer, and the second through-hole may be located near a half portion of the connection wall surface.
In an exemplary embodiment of the present invention, the number of the first through holes and the second through holes may be 2 to 5, and the radial dimension of the first through holes may be greater than the second through holes.
In an exemplary embodiment of the present invention, the supporting layer faces the one end of the connecting wall surface, a concave groove may be further formed, the sealing rubber strip further includes a sealing filler layer capable of being embedded into the concave groove, the sealing filler layer may be attached to the bottom of the concave groove and may be configured to be attached to the connecting wall surface when the supporting layer is pressed.
In an exemplary embodiment of the present invention, the concave groove may be configured to have a smaller dimension in a width direction as approaching the pressing end.
In an exemplary embodiment of the present invention, the portion of the supporting layer and the bottom portion enclosing the concave groove may have a stud provided to increase a slip-out resistance of the sealing packing layer.
In an exemplary embodiment of the present invention, an end of the support layer close to the connection wall surface may be provided with an auxiliary deformation structure that is bent inward, and the auxiliary deformation structure is configured to be deformed inward when being pressed.
In an exemplary embodiment of the present invention, the sealing strip may have a symmetrical structure in the width and/or length direction.
Compared with the prior art, the beneficial effects of the utility model can include: can ensure sealing performance, promote product installation effectiveness, compensate the piping lane defect simultaneously to reach stable and long-term effectual effect of sealing performance.
Drawings
The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic structural view of a joint strip in an exemplary embodiment of the invention;
fig. 2 shows a further schematic structural view of a joint strip according to an exemplary embodiment of the present invention;
fig. 3 shows a further schematic structural diagram in an exemplary embodiment of the invention.
Description of the main reference numerals:
1. meet water inflation layer, 2, supporting layer, 20, through-hole, 21, first through-hole, 22, arc recess, 23, second through-hole, 24, supplementary structure of warping, 25, non-skid protrusions, 3, sealed filling layer.
Detailed Description
Hereinafter, the joint strip of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.
The utility model provides a joint strip.
In an exemplary embodiment of the present invention, the joint strip may include a water-swellable layer and a supporting layer which are sequentially arranged in a direction from the installation wall surface to the connection wall surface.
The water-swellable layer may include a mounting end close to the mounting wall surface and a squeezing end close to the support layer, the mounting end may be configured to be attached to the mounting wall surface, the squeezing end is connected to the support layer, and the squeezing end may be further configured to: after the water-swellable layer swells in the presence of water, extruding the supporting layer through an extruding end; the supporting layer can be located the lateral wall of both sides and all have at least one arc recess including two respectively, the supporting layer can be set up to be as by after the inflation extrusion of water-swelling layer, can with the inflation water-swelling layer shutoff jointly connect the wall with the clearance of installation wall to the realization treats the sealed of sealing member.
In this embodiment, the extrusion end may have a convex structure protruding toward the water-swellable layer, and the end of the support layer connected to the extrusion end may also have a concave structure capable of being attached.
As shown in fig. 1 (fig. 1 may be a cross-sectional view of any width direction of the initial state of the joint strip, the width direction may be a transverse direction of the cross-sectional view shown in the figure, and the length direction may be a direction in which the joint strip extends), the upper portion of the water-swellable layer 1 may be an extrusion end, the lower portion of the water-swellable layer 1 may be an installation end, the upper end of the water-swellable layer 1 may be a structure gradually protruding toward the middle portion, and the corresponding support layer 2 has a structure gradually recessed toward the middle portion.
In this embodiment, the water-swellable layer can increase the volume through water absorption, so that the extrusion pressure of the adhesive tape can be enhanced, the sealing performance is improved, after the external moisture content is reduced, moisture in the adhesive tape is dispersed, the adhesive tape is restored to deform, the water absorption is maintained, and the adhesive tape can be used repeatedly; the supporting layer can be made of ethylene propylene diene monomer.
In this embodiment, set up the arc recess on the lateral wall of supporting layer can reduce the elastic yield strength of adhesive tape, makes the adhesive tape can stabilize compression deformation.
In this embodiment, the number of the arc-shaped grooves on each side wall may be 2 to 4, for example, 3.
In this embodiment, the sealing strip may be symmetrical in width and/or length.
In another exemplary embodiment of the present invention, on the basis of the previous exemplary embodiment:
the support layer may further include at least one through hole formed along a length direction of the support layer, and the through hole may include a first through hole and a second through hole, the first through hole may be located near a half portion of the water-swellable layer, and the second through hole may be located near a half portion of the connection wall surface.
In this embodiment, the radial dimension of the first through hole may be greater than the radial dimension of the second through hole, and the number of the first through hole and the number of the second through hole may be 2 to 5.
As shown in fig. 1, each of the first through holes 21 and the second through holes 23 may be a through hole having a circular cross section, the number of the first through holes 21 may be 3, and the distances from the axis of each of the 3 first through holes 21 to the installation wall surface (the installation wall surface is not shown in the figure, but the installation wall surface is attached to the lower end of the water-swellable layer 1) may be the same, and meanwhile, the number of the second through holes 23 may be 2, and the distances from the axis of each of the 2 second through holes 23 to the installation wall surface may be the same, and the distance from the axis of the arc-shaped groove 22 to the water-swellable layer 1 is between the distance from the axis of the first through hole 21 to the installation wall surface and the distance from the axis of the second through hole 23 to the installation wall surface.
In this embodiment, set up the through-hole in the inside of supporting layer, can reduce the weight to the adhesive tape while, can also increase the holistic elasticity performance of adhesive tape.
The supporting layer can be provided with a groove at one end facing the connecting wall surface, the groove can extend along the length direction of the supporting layer, the sealing rubber strip can further comprise a sealing filling layer capable of being embedded into the groove, the bottom of the sealing filling layer can be attached to the bottom of the groove, the sealing filling layer can be attached to the connecting wall surface when extrusion is received, and even local infiltration filling can be performed on the connecting wall surface.
In this embodiment, the material of the sealing and filling layer may be putty.
In this embodiment, the concave groove may be configured to have a smaller dimension in the width direction as it gets closer to the pressing end.
As shown in fig. 1, the concave groove (not shown), that is, the concave groove of the support layer 2 filled with the sealing filler layer 3, may have an inverted trapezoid shape, and both sides of the concave groove may be respectively provided with a second through hole 23.
One end of the support layer, which is close to the connecting wall surface, may be provided with an auxiliary deformation structure that is bent inward, and the auxiliary deformation structure is configured to be deformed inward when being pressed.
As shown in fig. 1, the auxiliary deformation structures 24 may be respectively located on both sides of the seal filling layer 3 and extend along the length direction of the support layer 2.
In this embodiment, the material of the auxiliary deformation structure may be the same as the material of the supporting layer.
In another exemplary embodiment of the present invention, on the basis of the previous exemplary embodiment:
the portion of the support layer that encloses the concave groove with the bottom of the concave groove (also referred to as the side wall of the concave groove) has a nonslip protrusion that is provided so as to increase the sliding resistance of the seal packing layer.
As shown in fig. 2 (fig. 2 may be a cross-sectional view in any width direction of the initial state of the bead, the width direction may be a direction transverse to the cross-sectional view shown in the figure, and the length direction may be a direction in which the bead extends), the side wall of the concave groove formed in the support layer 2 may have a plurality of downwardly curved nonslip protrusions 25.
In a further exemplary embodiment of the present invention, on the basis of the first exemplary embodiment:
the support layer further includes at least one through hole formed along a length direction of the support layer, as shown in fig. 3 (fig. 3 may be a cross-sectional view of any width direction of an initial state of the sealant, the width direction may be a transverse direction of the cross-sectional view shown in the figure, and the length direction may be a direction in which the sealant extends), the cross-section of each through hole 20 may be circular, and the inner diameter may not be uniform.
One end of the support layer close to the connecting wall surface is provided with an auxiliary deformation structure which is bent inwards and is configured to deform inwards when being pressed, as shown in fig. 3, the auxiliary deformation structures 24 may be respectively located at two ends of the support layer 2 in the width direction and extend along the length direction of the support layer 2.
In this embodiment, set up the through-hole in the inside of supporting layer, can reduce the weight to the adhesive tape while, can also increase the holistic elasticity performance of adhesive tape.
In this embodiment, the material of the auxiliary deformation structure may be the same as the material of the supporting layer.
To sum up, the utility model discloses a joint strip's advantage can include:
(1) the water-swelling layer can increase the volume through water absorption, so that the extrusion pressure of the adhesive tape is enhanced, the sealing performance is improved, after the external moisture content is reduced, the moisture in the adhesive tape is dispersed, the adhesive tape is restored to deform, the water absorption is kept, and the repeated action can be realized;
(2) the supporting layer is provided with through holes with unequal number and unequal size, so that the weight reduction of the product can be realized, and the overall elastic performance of the rubber strip can be improved;
(3) the arrangement of the concave groove can reduce the elastic yield strength of the adhesive tape, so that the adhesive tape can be stably deformed under pressure;
(4) the auxiliary deformation structure can enable the rubber strip to deform by the middle part when being externally installed and extruded, so that the supporting strength of the rubber strip is ensured, and the sealing performance is improved;
(5) can ensure sealing performance, promote product installation effectiveness, compensate the piping lane defect simultaneously to reach stable and long-term effectual effect of sealing performance.
Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A sealing rubber strip is characterized by comprising a water-swelling layer and a supporting layer which are sequentially connected, wherein,
the water-swelling layer comprises a mounting end and an extrusion end which are deviated from each other, the mounting end is arranged to be attached to a mounting wall surface, and the extrusion end is connected with the supporting layer and is arranged to extrude the supporting layer after the water-swelling layer is swelled;
the supporting layer is arranged to be capable of plugging a gap between the connecting wall surface and the mounting wall surface after being extruded by the extrusion end, the supporting layer further comprises two side walls which are provided with at least one arc-shaped groove, and the arc-shaped grooves on the side walls correspond to each other and extend along the length direction of the supporting layer.
2. The joint strip of claim 1, wherein the number of the arcuate grooves on each sidewall is 2-4.
3. The joint strip of claim 1, wherein the support layer further comprises at least one through hole formed along a length of the support layer.
4. The joint strip of claim 3, wherein the through-holes comprise a first through-hole located near a half of the water-swellable layer and a second through-hole located near a half of the connecting wall.
5. The joint strip of claim 4, wherein the number of the first through holes and the number of the second through holes are both 2-5, and the radial dimension of the first through holes is larger than that of the second through holes.
6. The joint strip of claim 1, wherein the supporting layer has a concave groove at an end facing the connecting wall surface, and the joint strip further comprises a sealant layer capable of being inserted into the concave groove, the sealant layer being attached to a bottom of the concave groove and configured to be attached to the connecting wall surface when the supporting layer is pressed.
7. A strip according to claim 6, wherein said concave groove is arranged to have a width dimension that decreases as it approaches said pressing end.
8. A strip according to claim 6, wherein the portion of the support layer which encloses the concave recess with the base has a stud arranged to increase the slip-out resistance of the sealant layer.
9. A joint strip according to claim 1, wherein the end of the support layer adjacent to the connecting wall surface is provided with an auxiliary deformation structure that is bent inward, and the auxiliary deformation structure is configured to deform inward when being pressed.
10. A joint strip according to claim 1, wherein the joint strip is of symmetrical configuration in the width and/or length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542387.0U CN212563275U (en) | 2020-07-29 | 2020-07-29 | Sealing rubber strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542387.0U CN212563275U (en) | 2020-07-29 | 2020-07-29 | Sealing rubber strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212563275U true CN212563275U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021542387.0U Active CN212563275U (en) | 2020-07-29 | 2020-07-29 | Sealing rubber strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212563275U (en) |
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2020
- 2020-07-29 CN CN202021542387.0U patent/CN212563275U/en active Active
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