CN212617037U - Combined type internal expansion rubber ring for pipeline repair - Google Patents

Combined type internal expansion rubber ring for pipeline repair Download PDF

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Publication number
CN212617037U
CN212617037U CN202021245837.XU CN202021245837U CN212617037U CN 212617037 U CN212617037 U CN 212617037U CN 202021245837 U CN202021245837 U CN 202021245837U CN 212617037 U CN212617037 U CN 212617037U
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China
Prior art keywords
rubber ring
pipeline
expansion
ring
type
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CN202021245837.XU
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Chinese (zh)
Inventor
黄良根
常勤辉
胡勇
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Maanshan Hongli Rubber Products Co ltd
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Maanshan Hongli Rubber Products Co ltd
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Abstract

The utility model discloses an expand rubber ring in combination formula for pipeline restoration belongs to the secondary seal technical field of large-scale pipeline. The utility model discloses an expanding rubber ring in combination formula includes expanding rubber ring in I type and the expanding rubber ring in II type, expanding rubber ring in I type with expanding rubber ring overlap joint in II type, prosthetic pipeline length as required, expanding rubber ring can overlap joint in proper order head and the tail in a plurality of II types to increase the overall length of expanding rubber ring in the combination formula. The utility model discloses an internal expanding rubber ring not only can restore the radial damaged problem of pipeline, can also solve the longer axial damaged problem of pipeline to can save construction cycle, practice thrift engineering cost greatly.

Description

Combined type internal expansion rubber ring for pipeline repair
Technical Field
The utility model relates to a secondary seal technical field of large pipeline, the more specifically bloated rubber ring in combination formula that says so is used for pipeline restoration.
Background
With the increasing urbanization level of the national cities, the water supply pipeline reaches 79.7 kilometers in the end of 2017 years, and the water discharge pipeline reaches 60 kilometers. This number is increasing and includes the renovation and repair of old pipelines, which usually require excavation and reconstruction.
For repairing leakage buried underground, the traditional method is to replace the pipeline by adopting an excavation mode or install an outer hoop for repairing the pipeline after excavation; the repair mode has large engineering quantity, high construction difficulty and high repair cost; there are also some cases that are not suitable for excavation such as: buildings, roads with large flow of people and traffic, other complicated network cables and other difficult excavation situations exist near and above the pipeline.
Through retrieval, relevant patents are disclosed at present for solving the defects of high construction difficulty and high repair cost of underground buried leakage repair. For example, chinese patent application, application number: CN 201610378171.7, published date: the invention patent of 2016, 8, 3 and discloses an internal expansion type rubber sealing ring and application thereof. But the disadvantages of this solution are: the rubber seal ring of this scheme only is applicable to pipeline radial local damage or interface leakage, can't solve the pipeline and have longer axial damaged problem, and application range is less.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
To the unable pipeline of solving of the above-mentioned current internal expanding rubber ring there is longer axial damaged problem, the utility model discloses an internal expanding rubber ring of combination formula for pipeline restoration has carried out corresponding improvement on the basis of current internal expanding rubber ring, and the radial damaged problem of pipeline not only can be restoreed to the internal expanding rubber ring after the improvement, can also solve the longer axial damaged problem of pipeline to can save construction cycle, practice thrift engineering cost greatly.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model provides an expand rubber ring in combination formula for pipeline is restoreed, includes I type expand rubber ring, its characterized in that in: the rubber ring assembly also comprises a type II internal expansion rubber ring, and the two type II internal expansion rubber rings can be overlapped end to end; the I-type inner expanding rubber ring is in lap joint with the II-type inner expanding rubber ring.
When axial damage appears in the pipeline, the length of pipeline that restores as required is provided with in a plurality of II types the rubber ring that expands and I type the rubber ring that expands and carries out the overlap joint and restore, can carry out the overlap joint head and the tail between the rubber ring that expands in II types to the overall length of rubber ring that expands in increasing, the completion is to the damaged restoration of longer axial that the pipeline appears.
According to a further technical scheme, a groove is formed in the inner wall of the type II internal expansion rubber ring, and a metal expansion ring is arranged in the groove to form an internal expansion structure; on the bloated rubber ring in II type, be provided with the corresponding surface of recess and end the waterline, the recess makes things convenient for the installation location of metal expansion circle as the location mounting groove of metal expansion circle.
According to the technical scheme, the width of the metal expansion ring is consistent with that of the groove, so that the influence of left-right movement of the metal expansion ring on the sealing effect can be reduced to the greatest extent.
According to the technical scheme, the inner wall of the II type inner expansion rubber ring is provided with the joggle groove, the shape of the joggle groove is matched with that of the water stop line, so that the head and the tail of the two II type inner expansion rubber rings can be accurately lapped under the condition of ensuring the sealing performance, and the total length of the combined type inner expansion rubber ring is prolonged.
According to the further technical scheme, two fixing grooves are formed in the inner wall of the I-shaped inner expansion rubber ring, and the metal expansion ring is installed in the fixing grooves; on the rubber ring expands in the I type, with the corresponding surface of fixed slot is provided with only waterline, and fixed slot makes things convenient for the installation location of metal expansion ring as the location mounting groove of metal expansion ring.
According to the further technical scheme, the water stop line on the I-type inner expansion rubber ring is lapped on the tenon groove on the II-type inner expansion rubber ring, the overall length of the inner expansion rubber ring is enhanced, the overall sealing performance of the inner expansion rubber ring is guaranteed, and the purpose of repairing a damaged pipeline is achieved.
According to the technical scheme, the two ends of the metal expansion ring are provided with the clamping openings, the elastic sheets are clamped between the clamping openings, the internal expansion force of the metal expansion ring is kept, and meanwhile the problems that when the metal expansion ring is supported by the support rods, the support rods are easy to damage and the flow rate of water flow of a pipeline is influenced by the support rods are solved.
In a further technical scheme, the metal expansion ring is provided with expansion force bearing points, so that radial expansion force can be conveniently applied to the annular metal expansion ring through the hydraulic expander.
According to the further technical scheme, the corrosion-resistant layer is coated outside the metal expansion ring, so that the corrosion resistance of the metal expansion ring is enhanced.
According to the further technical scheme, the metal expansion ring is in a circular ring shape and is attached to the shape of the pipeline, so that the water stopping line of the inner expansion rubber ring forms compression sealing capacity on the inner wall of the pipeline, and the sealing performance of the inner expansion rubber ring is enhanced.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses a rubber ring expands in combination formula for pipeline restoration, prosthetic pipeline length as required, rubber ring expands in I type and the rubber ring expands in II type, can carry out the overlap joint between the rubber ring expands in II type and the rubber ring expands in II type to the overall length of rubber ring expands in increasing, accomplish the damaged restoration of longer axial that appears the pipeline.
(2) The groove and the fixing groove are used as the positioning mounting groove of the metal expanding ring, so that the metal expanding ring can be conveniently mounted and positioned; the setting of stagnant water line is equivalent to multichannel sealing washer, reduces the influence of the roughness of pipeline inner wall to sealed effect.
(3) The utility model discloses a rubber ring expands in combination formula for pipeline restoration, the width of metal expansion circle is unanimous with the width of recess, can remove the influence to sealed effect about the metal expansion circle of maximum possible reduction
(4) The utility model discloses an expand rubber ring in combination formula for pipeline restoration, the shape in joggle groove and the shape phase-match of ending the waterline make two II types expand the rubber ring the head and the tail can accurate overlap joint under the condition of guaranteeing the leakproofness, the total length of the rubber ring that expands in the extension combination formula.
(5) The utility model discloses an expand rubber ring in combination formula for pipeline restoration presss from both sides the mouth between the card and goes into the shell fragment, when keeping the interior expanding force of metal expansion circle, when solving again and supporting with the vaulting pole, the vaulting pole damages easily and the vaulting pole influences the problem of pipeline rivers velocity of flow.
(6) The utility model discloses a rubber ring expands in combination formula for pipeline restoration, the metal expansion circles and is provided with expansion afterburning supporting point to be equipped with the fixed stopper mouth of expansion, the convenient to use hydraulic expander applys radial expansive force to the metal expansion circle.
(7) The utility model discloses an expand rubber ring in combination formula for pipeline restoration, metal expansion ring adopt the stainless steel material who accords with quality of water sanitary requirement to make to scribble corrosion resistant layer outside metal expansion ring, with the corrosion resistance of reinforcing metal expansion ring.
(8) The utility model discloses a rubber ring expands in combination formula for pipeline restoration, the shape of the pipeline is laminated more to the shape of annular metal expansion ring, and when applying radial expansive force to metal expansion ring, metal expansion ring can exert force to the rubber ring that expands, makes the rubber ring that expands more the pipeline inner wall that laminates to the sealing performance of rubber ring expands in the reinforcing.
Drawings
Fig. 1 is a schematic structural view of the lap joint of the internal expansion rubber ring of the present invention;
FIG. 2 is a schematic structural view of a type I internal expanding rubber ring of the present invention;
fig. 3 is a schematic structural view of a type ii internal expanding rubber ring of the present invention;
fig. 4 is a schematic structural view of the combined type internal expanding rubber ring repairing pipeline of the utility model;
FIG. 5 is a schematic structural view of a metal expansion ring of the present invention;
fig. 6 is an enlarged view of a portion a of fig. 5.
In the figure:
1. i type inner expanding rubber ring; 11. a fixing groove;
2. type II internal expanding rubber ring; 21. a groove; 22. a mortise and tenon joint groove;
3. a pipeline;
4. a metal expansion ring; 41. clamping the opening; 42. a spring plate; 43. expanding the stress application supporting points;
5. and (6) stopping the water line.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
The combined type inner expanding rubber ring for repairing the pipeline comprises an I type inner expanding rubber ring 1 and a II type inner expanding rubber ring 2, wherein the two II type inner expanding rubber rings 2 can be overlapped end to end; the I-type inner expanding rubber ring 1 is in lap joint with the II-type inner expanding rubber ring 2.
The I-type internal expansion rubber ring 1 is in the prior art, the structure of the I-type internal expansion rubber ring is shown in figure 2, two fixing grooves 11 are formed in the inner wall of the I-type internal expansion rubber ring 1, and the metal expansion ring 4 is installed in the fixing grooves 11; on the I type internal expanding rubber ring 1, with the corresponding surface of fixed slot 11 is provided with many stagnant water lines 5. As can be seen from the structure of the I-shaped internal expansion rubber ring 1, when the pipeline 3 is damaged in a smaller radial direction, the pipeline 3 can be repaired by independently using the I-shaped internal expansion rubber ring 1.
However, when the pipeline 3 is damaged in a longer axial direction, the pipeline 3 cannot be repaired by using the I-shaped inner expanding rubber ring 1 alone, and the length of the inner expanding rubber ring cannot be prolonged by lapping the I-shaped inner expanding rubber ring 1, so that the applicant improves the structure of the I-shaped inner expanding rubber ring 1 correspondingly, and adds the II-shaped inner expanding rubber ring 2, so that the I-shaped inner expanding rubber ring 1 and the II-shaped inner expanding rubber ring 2 can be lapped, the total length of the inner expanding rubber ring is prolonged, and the total length of the part of the pipeline 3 to be repaired can be reached.
Different from the I-type internal expansion rubber ring 1, the II-type internal expansion rubber ring 2 has a structure shown in figure 3, a groove 21 is formed in the inner wall of the II-type internal expansion rubber ring 2, and a metal expansion ring 4 is installed in the groove 21 to form an internal expansion structure; on the rubber ring 2 that expands in II type, be provided with many stagnant water lines 5 with the corresponding surface of recess 21, the setting of stagnant water line 5 is equivalent to the multichannel sealing washer, can reduce the influence of the roughness of 3 inner walls of pipeline to the sealed effect of rubber ring that expands.
The rubber ring that expands 1 in I type and the rubber ring that expands 2 in II type in this application can carry out the overlap joint, also can carry out the overlap joint between rubber ring that expands 2 in II type and the rubber ring that expands 2 in II type in the II type, constitutes the rubber ring that expands in of combination formula. The lapping mode is as follows: the inner wall of the II-type inner expansion rubber ring 2 is provided with a joggle groove 22, the shape of the joggle groove 22 is matched with that of the water stopping line 5, and the water stopping line 5 of the I-type inner expansion rubber ring 1 is in lap joint with the joggle groove 22 of the II-type inner expansion rubber ring 2. Meanwhile, as shown in fig. 1, the water stopping line 5 of the type ii internal expanding rubber ring 2 and the mortise 22 of the type ii internal expanding rubber ring 2 can be overlapped.
As shown in fig. 4, for pipeline diagram is restoreed to bloated rubber ring in combination formula, to sum up, the length of bloated rubber ring in combination formula in this application can change according to the length of the pipeline 3 that needs to be restoreed, chooses the number that needs lapped II type bloated rubber ring 2, can restore to the pipeline 3 of arbitrary length.
Example 2
In order to improve the sealing performance of the internal expanding rubber ring, the basic structure of the combined internal expanding rubber ring for repairing the pipeline of the embodiment is the same as that of the embodiment 1, and the differences and improvements are as follows: the width of the metal expansion ring 4 is consistent with the width of the groove 21 and the width of the fixing groove 11, so that the influence of the movement of the metal expansion ring 4 in the groove 21 or the fixing groove 11 on the sealing effect can be reduced to the greatest extent.
Example 3
The basic structure of the combined type internal expanding rubber ring for repairing the pipeline of the embodiment is the same as that of the embodiment 2, and the differences and improvements are as follows: as shown in fig. 5 and 6, the two ends of the metal expansion ring 4 are provided with clamping openings 41, and elastic pieces 42 are clamped between the clamping openings 41, so that the internal expansion force of the metal expansion ring 4 is maintained, and the problems that the stay bar is easily damaged and the flow rate of water flow in the pipeline 3 is influenced by the stay bar when the stay bar is used for supporting are solved.
The metal expansion ring 4 is provided with an expansion stress bearing point 43 and an expansion fixing plug mouth, so that the metal expansion ring 4 can be conveniently applied with radial expansion force by using a hydraulic expander.
In order to further enhance the sealing performance of the inner expansion rubber ring, the metal expansion ring 4 is integrally manufactured into a circular ring shape, or the metal expansion ring 4 is manufactured into 2-3 sections of circular arc sections and is connected into the circular ring shape through a rabbet, the shape of the circular ring-shaped metal expansion ring 4 is more attached to the shape of the pipeline 3, when radial expansion force is applied to the metal expansion ring 4, the metal expansion ring 4 also applies force to the inner expansion rubber ring, so that the inner expansion rubber ring is more attached to the inner wall of the pipeline 3, and the sealing performance of the inner expansion rubber ring is enhanced.
Example 4
The basic structure of the combined type internal expanding rubber ring for repairing the pipeline of the embodiment is the same as that of the embodiment 3, and the differences and improvements are that: because the metal expansion ring 4 and the inner expansion rubber ring are both contacted with the liquid conveyed in the pipeline 3, in order to prolong the service life of the metal expansion ring 4, the metal expansion ring 4 is made of stainless steel materials meeting the water quality sanitation requirements, and a corrosion-resistant layer is coated outside the metal expansion ring 4, so that the corrosion resistance of the metal expansion ring 4 is further enhanced.
And in order to prolong the service life of the inner expansion rubber ring, the inner expansion rubber ring is made of ethylene propylene diene monomer rubber with excellent aging resistance and long service life.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides an expand rubber ring in combination formula for pipeline is restoreed, includes I type expand rubber ring (1), its characterized in that in: the rubber ring comprises two type II internal expansion rubber rings (2), and the two type II internal expansion rubber rings (2) can be lapped end to end; the I-type inner expanding rubber ring (1) is in lap joint with the II-type inner expanding rubber ring (2).
2. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 1, wherein: a groove (21) is formed in the inner wall of the II-type internal expansion rubber ring (2), and the metal expansion ring (4) is installed in the groove (21) to form an internal expansion structure; and a water stopping line (5) is arranged on the outer surface of the II-type inner expanding rubber ring (2) corresponding to the groove (21).
3. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 2, wherein: the width of the metal expansion ring (4) is consistent with that of the groove (21).
4. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 3, wherein: the inner wall of the II-type inner expansion rubber ring (2) is provided with a joggle groove (22), and the shape of the joggle groove (22) is matched with that of the waterline (5).
5. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 2, wherein: the inner wall of the I-shaped inner expansion rubber ring (1) is provided with two fixing grooves (11), and the metal expansion ring (4) is arranged in the fixing grooves (11); and a water stopping line (5) is arranged on the I-shaped inner expansion rubber ring (1) and on the corresponding outer surface of the fixing groove (11).
6. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 5, wherein: and a water stopping line (5) on the I-type internal expansion rubber ring (1) is lapped on a tenon joint groove (22) on the II-type internal expansion rubber ring (2).
7. The combined internal expanding rubber ring for repairing the pipeline according to any one of claims 2-6, wherein: the two ends of the metal expansion ring (4) are provided with clamping openings (41), and elastic sheets (42) are clamped between the clamping openings (41).
8. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 7, wherein: and an expansion stress application supporting point (43) is arranged on the metal expansion ring (4).
9. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 8, wherein: the metal expansion ring (4) is coated with a corrosion-resistant layer.
10. The combined internal expanding rubber ring for repairing the pipeline as claimed in claim 9, wherein: the metal expansion ring (4) is in a ring shape.
CN202021245837.XU 2020-06-30 2020-06-30 Combined type internal expansion rubber ring for pipeline repair Active CN212617037U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021245837.XU CN212617037U (en) 2020-06-30 2020-06-30 Combined type internal expansion rubber ring for pipeline repair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021245837.XU CN212617037U (en) 2020-06-30 2020-06-30 Combined type internal expansion rubber ring for pipeline repair

Publications (1)

Publication Number Publication Date
CN212617037U true CN212617037U (en) 2021-02-26

Family

ID=74756847

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021245837.XU Active CN212617037U (en) 2020-06-30 2020-06-30 Combined type internal expansion rubber ring for pipeline repair

Country Status (1)

Country Link
CN (1) CN212617037U (en)

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