CN215111261U

CN215111261U - Pipeline telescopic joint structure with maintenance-free and corrosion-resistant functions

Info

Publication number: CN215111261U
Application number: CN202121324444.2U
Authority: CN
Inventors: 张凌海; 陈武超; 高学奎; 崔宁日
Original assignee: Mingke Technology Industry Liaoning Co ltd; SHENYANG MINGKE CONTROLLING CORROSION TECHNOLOGY CO LTD
Current assignee: Mingke Technology Industry Liaoning Co ltd; SHENYANG MINGKE CONTROLLING CORROSION TECHNOLOGY CO LTD
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-10
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a pipeline telescopic joint structure with non-maintaining anticorrosive function establishes in adjacent concrete conduit's expansion joint, including pre-buried flange, flexible compensation structure and liquid coating, pre-buried flange is established on concrete conduit's terminal surface, flexible compensation structural connection is between two pre-buried flanges, liquid coating is established in flexible compensation structure to be located between flexible compensation structure and the concrete conduit. The utility model discloses form between flexible compensation structure and concrete pipe port and fill the seal groove and pour into liquid coating into, through liquid coating with concrete pipe inner medium and outside isolated, can effectively strengthen the bonding strength of flexible compensator and pipe wall after the liquid coating solidification simultaneously, realized carrying out long-term protection in the concrete pipe engineering life cycle of carrying medium, thoroughly realize the non-maintaining in life cycle even, effectively ensure normal operating's safety and durability.

Description

Pipeline telescopic joint structure with maintenance-free and corrosion-resistant functions

Technical Field

The utility model relates to a pipeline corrosion prevention technical field, concretely relates to pipeline telescopic joint structure with non-maintaining anticorrosive function.

Background

The expansion joint is an important accessory facility for the water delivery engineering of the concrete structure and is used for adjusting the change of the relative position between adjacent pipelines caused by the change of temperature. Most expansion joints at present adopt pre-buried waterstop or adopt the clamp plate form to reach and satisfy structural deformation and waterproof requirement.

When the waterstop structure is adopted, because the shrinkage rates of the waterstop and cement are different, after the waterstop structure is used for a period of time, a gap is formed between the waterstop and the cement, and a medium conveyed in a pipeline permeates to cause leakage; and because cement has certain corrosion effect on rubber, the aging of the water stop is accelerated, so the durability and the water leakage stopping effect of the structure are poor.

When the pressing plate form is adopted, the sealing glue is filled in the water stop and the pressing plate piece, the sealing glue cannot be spread evenly by the pressing plate, and in addition, the fastening bolt and the pressing plate have a gap, so that the medium can be leaked from the gap, and the long-time sealing effect cannot be achieved. Because seams exist when general water stops are arranged in a circular mode, leakage hidden danger exists in the seams; and the gap of the common expansion joint is smaller, especially the expansion joint of the water conveying pipeline, the operation space is small, and the installation and the replacement are inconvenient. The utility model provides a pipeline telescopic joint structure with non-maintaining anticorrosive function solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline telescopic joint structure with non-maintaining anticorrosive function forms and fills the seal groove and pour into liquid coating into at the inslot and completely cut off anticorrosive, has solved the problem of expansion joint seal durability and seepage.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

a pipeline expansion joint structure with a maintenance-free anticorrosion function is arranged in expansion joints of adjacent concrete pipelines and comprises pre-buried flanges, an expansion compensation structure and liquid coating, wherein the pre-buried flanges are arranged on the end faces of the concrete pipelines, the expansion compensation structure is connected between the two pre-buried flanges, and the liquid coating is arranged in the expansion compensation structure and is positioned between the expansion compensation structure and the concrete pipelines;

the telescopic compensation structure comprises a connecting and injecting structure, a telescopic pipe and an anti-impact barrel, the connecting and injecting structure is respectively arranged on the two embedded flanges, the telescopic pipe and the anti-impact barrel are connected between the two connecting and injecting structures, and the telescopic pipe is positioned on the outer side of the anti-impact barrel;

the connecting and injecting structure comprises an injecting groove, a fixed flange and a connecting plate, the fixed flange is fixedly connected to the pre-buried flange, the injecting groove is arranged on an inner side ring of the fixed flange, liquid coating is arranged in the injecting groove, the connecting plate is located on an inner end face of the injecting groove, the end portion of the telescopic pipe is connected to the connecting plate, and the end portion of the impact-proof barrel is connected to the injecting groove.

Furthermore, the outer side ring surface of the material injection groove is attached to the inner wall surface of the concrete pipeline to form an annular injection sealing groove, and the liquid coating is located in the injection sealing groove.

Furthermore, a through hole is formed in the inner end face of the material injection groove, a material injection pipe and an exhaust pipe are arranged on the through hole, a material injection pipe and an exhaust pipe are respectively arranged on each pouring sealing groove, the exhaust pipe is arranged at the bottom end of each pouring sealing groove, and the material injection pipe is arranged at the top end of each pouring sealing groove.

Furthermore, a sealing gasket is arranged on the material injection groove and fixedly connected to the outer end face of the material injection groove.

Further, one end of the impact-proof cylinder is fixedly connected to the inner wall of the material injection groove through a fixing rivet, and the other end of the impact-proof cylinder is in a free state and is attached to the inner side wall surface of the material injection groove on the end surface of the adjacent concrete pipeline.

Furthermore, a laminating sealing gasket is arranged between the free end of the impact-proof cylinder and the inner side wall surface of the material injection groove.

Furthermore, the outer surfaces of the connecting and injecting structure, the telescopic pipe and the impact-proof cylinder are all provided with anticorrosive coatings.

Furthermore, the connecting and injecting structure is of an integrated structure, and liquid anticorrosive paint is coated between the fixed flange and the embedded flange.

The utility model discloses beneficial effect as follows:

the structure of the utility model forms a filling seal groove at the telescopic joint of the pipeline and injects liquid coating into the groove, the pipeline and the expansion joint between the pipeline are isolated from the medium in the pipeline by the liquid coating, and simultaneously the liquid coating can effectively strengthen the bonding strength between the telescopic joint and the pipe wall after solidification, thus realizing long-time sealing of the telescopic joint and having better corrosion resistance;

the liquid coating has long service life, still has good waterproof and anticorrosion effects after long-time use and solidification, and ensures that the concrete pipeline expansion joint plays a maintenance-free role in a longer time;

the utility model has the advantages of simple structure, installation are convenient to it is convenient to change the maintenance, and the suitability is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the part A of FIG. 1;

FIG. 3 is a schematic sectional view of the connecting injection structure of the present invention;

fig. 4 is a schematic sectional view of the connection injection structure of the present invention.

Reference numerals: the concrete pipe comprises a concrete pipe 1, a pre-embedded flange 2, a telescopic compensation structure 3, a connecting and injecting structure 31, an injecting groove 311, a fixed flange 312, an engaging plate 313, a sealing gasket 314, a telescopic pipe 32, an anti-impact barrel 33, an injecting pipe 34, an exhaust pipe 35 and a liquid coating 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

As shown in fig. 1 and 2, a pipeline telescopic joint structure with non-maintaining anticorrosive function establishes in adjacent concrete conduit 1's expansion joint, including pre-buried flange 2, flexible compensation structure 3 and liquid coating 4, pre-buried flange 2 is established on concrete conduit 1's terminal surface, as flexible compensation structure 3's connection basis, flexible compensation structure 3 connects between two pre-buried flanges 2, liquid coating 4 is established in flexible compensation structure 3 to be located between flexible compensation structure 3 and the concrete conduit 1.

As shown in fig. 1 and 2, further, flexible compensation structure 3 is including connecting notes material structure 31, flexible pipe 32 and protecting against shock a section of thick bamboo 33, connect notes material structure 31 and establish respectively on two pre-buried flanges 2, play the effect as the connection basis to be used for forming simultaneously and fill the seal groove, flexible pipe 32 and protecting against shock a section of thick bamboo 33 are connected between two connection notes material structures 31, flexible pipe 32 is located the outside of protecting against shock a section of thick bamboo 33, flexible pipe 32 is flexible along with the pipeline deformation carries out the self-adaptation to block the medium, avoid the seepage, protecting against shock a section of thick bamboo 33 is used for bearing the medium impact in the pipeline, and the flexible pipe 32 of direct impact of avoiding the medium causes the damage.

As shown in fig. 3 and 4, further, the connecting and injecting structure 31 includes an injecting groove 311, a fixing flange 312 and a connecting plate 313, the fixing flange 312 is fixedly connected to the embedded flange 2 as a fixing support of the foundation, the injecting groove 311 is arranged on the inner side of the fixing flange 312 and forms a pouring seal groove with the concrete pipe 1, the liquid coating 4 is arranged in the pouring seal groove to play roles of isolating a medium and preventing water and corrosion, the connecting plate 313 is located on the inner end surface of the injecting groove 311, the end of the telescopic pipe 32 is connected to the connecting plate 313, and the end of the impact preventing cylinder 33 is connected to the injecting groove 311.

The principle of the utility model is as follows: connect flexible pipe 32 between the adjacent material structure 31 of annotating of connecting and form the telescopic joint, when the pipeline structure warp, flexible pipe 32 carries out the self-adaptation and stretches out and draws back and satisfy the pipeline and warp, keeps still keeping the whole sealed effect of pipeline telescopic joint simultaneously, has realized still playing waterproof sealing effect when the pipeline structure warp, and above-mentioned structure is used as ripe pipeline telescopic joint. The utility model discloses a set up in the material structure 31 of connecting and annotate silo 311 and establish on concrete pipe with annotating silo 311, and together form and fill the seal groove, and pour into liquid coating 4 in filling the seal groove, the medium that flows in with the bilayer structure that liquid coating 4 formed through the structural feature of annotating silo 311 itself and completely cut off with concrete pipe's terminal surface in with the pipeline, avoid the medium seepage and then the corruption that causes the pipeline, play good waterproof and anticorrosive effect, effectively satisfy deformation and the waterproof requirement of expansion joint department.

When pouring into liquid coating 4 in pouring the seal groove, liquid coating 4 has certain pressure for liquid coating 4 combines with the concrete pipe, plays the effect of insulating water, then produces certain cohesion after liquid coating 4 solidifies, makes the concrete pipe more firm with connecting the combination between annotating the material structure 31, avoids steam to invade, plays long-term waterproof effect, has long-time non-maintaining's effect.

As shown in fig. 1 and 2, further, an outer annular surface of the injection groove 311 is fitted to an inner wall surface of the concrete pipe 1 to form an annular injection sealing groove, and the liquid coating 4 is located in the injection sealing groove.

Preferably, the embedded flange 2 and the fixing flange 312 are provided with corresponding threaded holes,

as shown in fig. 1 and 2, further, a through hole is provided on an inner end surface of the material injection groove 311, a material injection pipe 34 and an exhaust pipe 35 are provided on the through hole, a material injection pipe 34 and an exhaust pipe 35 are respectively provided on each of the pouring seal grooves, the exhaust pipe 35 is provided at a bottom end of the pouring seal groove, and the material injection pipe 34 is provided at a top end of the pouring seal groove.

Preferably, the outer end of the exhaust pipe 35 is provided with a nylon net for preventing foreign matters from entering.

As shown in fig. 2, a sealing gasket 314 is further disposed on the material injection groove 311, and the sealing gasket 314 is fixedly connected to an outer end surface of the material injection groove 311.

Preferably, the sealing gasket 314 is fixedly connected to the material injection groove 311 through a rivet, and the sealing gasket 314 plays roles of isolation and buffering, so that the liquid coating 4 in the material injection groove 311 is prevented from leaking.

Further, one end of the impact prevention cylinder 33 is fixedly connected to the inner wall of the material injection groove 311, and the other end is in a free state and is attached to the inner wall surface of the material injection groove 311 on the end surface of the adjacent concrete pipeline 1.

Further, a joint sealing gasket is arranged between the free end of the impact-proof cylinder 33 and the inner side wall surface of the material injection groove 311.

Preferably, the one end of a protecting against shock section of thick bamboo 33 is passed through fixing rivet and is connected on a notes silo 311, is equipped with the sealed pad of laminating on the outer wall of the other end to seal up the laminating on another notes silo 311 through the laminating, when the pipeline expansion joint is flexible, the free end of a protecting against shock section of thick bamboo 33 carries out the free movement, and through the sealed effect of sealed pad holding of laminating and notes silo 311.

Further, the outer surfaces of the connecting and injecting structure 31, the telescopic pipe 32 and the impact-proof cylinder 33 are all provided with an anti-corrosion coating.

Preferably, the impact-proof cylinder 33 is a spring steel plate cylinder.

Preferably, the extension tube 32 is welded to the connector plate 313.

Further, the connecting and injecting structure 31 is an integrated structure, and a liquid anticorrosive paint is coated between the fixed flange 312 and the embedded flange 2.

Preferably, the liquid coating 4 is a liquid high-performance solvent-free epoxy anticorrosive coating. Liquid coating 4 plays isolated sealed effect when being liquid, has certain cohesion after its solidification, will connect to annotate material structure 31 and pipeline end portion and combine, and the durability of reinforcing waterproof construction effectively promotes anticorrosive effect, has long-time non-maintaining's effect.

A construction method of a pipeline expansion joint structure with a maintenance-free anticorrosion function comprises the following steps:

s1, component production: when the concrete pipeline 1 is poured, the embedded flanges 2 are poured together for embedding;

s2, flange connection: firstly, performing anti-corrosion treatment on the connecting and injecting structure 31, and then connecting and fixing the connecting and injecting structure with the embedded flange 2;

s3, installing a pipeline: the telescopic pipe 32 and the impact-proof cylinder 33 are subjected to antiseptic treatment and are sequentially installed from inside to outside;

s4, paint injection: installing a material injection pipe 34 and an exhaust pipe 35 on a through hole of the material injection groove 311, then injecting the liquid coating 4 from the material injection pipe 34 until the coating overflows from the exhaust pipe 35, then plugging the material injection pipe 34, and after the liquid coating 4 is cured, removing the material injection pipe 34 and the exhaust pipe 35 to complete the construction of the pouring sealing waterproof structure.

Further, in step S2, when the connecting injection structure 31 is installed, the inner disk surface of the fixing flange 312 is coated with the liquid paint, and then the fixing flange and the embedded flange 2 are connected and fastened by bolts.

Further, in step S1, when the existing pipeline is modified, the embedded flange 2 is fixed to the pipeline by using expansion bolts on the end face of the pipeline, and then the subsequent installation and fixation of the connecting and injecting structure 31 are performed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. A pipeline expansion joint structure with a maintenance-free anticorrosion function is arranged in expansion joints of adjacent concrete pipelines (1), and is characterized by comprising pre-buried flanges (2), an expansion compensation structure (3) and liquid coating (4), wherein the pre-buried flanges (2) are arranged on the end faces of the concrete pipelines (1), the expansion compensation structure (3) is connected between the two pre-buried flanges (2), and the liquid coating (4) is arranged in the expansion compensation structure (3) and is positioned between the expansion compensation structure (3) and the concrete pipelines (1);

the telescopic compensation structure (3) comprises a connecting and injecting structure (31), a telescopic pipe (32) and an anti-impact barrel (33), the connecting and injecting structure (31) is respectively arranged on the two embedded flanges (2), the telescopic pipe (32) and the anti-impact barrel (33) are connected between the two connecting and injecting structures (31), and the telescopic pipe (32) is positioned on the outer side of the anti-impact barrel (33);

the connecting and injecting structure (31) comprises an injecting groove (311), a fixed flange (312) and a connecting plate (313), the fixed flange (312) is fixedly connected to the embedded flange (2), the injecting groove (311) is arranged on the inner side ring of the fixed flange (312), the liquid coating (4) is arranged in the injecting groove (311), the connecting plate (313) is located on the inner end face of the injecting groove (311), the end part of the telescopic pipe (32) is connected to the connecting plate (313), and the end part of the impact-proof cylinder (33) is connected to the injecting groove (311);

the outer side ring surface of the material injection groove (311) is attached to the inner wall surface of the concrete pipeline (1) to form an annular injection sealing groove, and the liquid coating (4) is located in the injection sealing groove;

the inner end face of the material injection groove (311) is provided with a through hole, the through hole is provided with a material injection pipe (34) and an exhaust pipe (35), each material injection pipe (34) and one exhaust pipe (35) are arranged on each filling sealing groove respectively, the exhaust pipes (35) are arranged at the bottom ends of the filling sealing grooves, and the material injection pipes (34) are arranged at the top ends of the filling sealing grooves.

2. The pipe telescopic joint structure with the maintenance-free and corrosion-resistant functions as claimed in claim 1, which is characterized in that: and a sealing gasket (314) is arranged on the material injection groove (311), and the sealing gasket (314) is fixedly connected to the outer end surface of the material injection groove (311).

3. The pipe telescopic joint structure with the maintenance-free and corrosion-resistant functions as claimed in claim 1, which is characterized in that: one end of the impact-proof cylinder (33) is fixedly connected to the inner wall of the material injection groove (311) through a fixing rivet, and the other end of the impact-proof cylinder is in a free state and is attached to the inner side wall surface of the material injection groove (311) on the end surface of the adjacent concrete pipeline (1).

4. The pipe telescopic joint structure with the maintenance-free and corrosion-resistant functions as claimed in claim 3, wherein: and a joint sealing gasket is arranged between the free end of the impact-proof cylinder (33) and the inner side wall surface of the injection groove (311).

5. The pipe telescopic joint structure with the maintenance-free and corrosion-resistant functions as claimed in claim 1, which is characterized in that: and the outer surfaces of the connecting and injecting structure (31), the telescopic pipe (32) and the impact-proof cylinder (33) are all provided with anticorrosive coatings.

6. The pipe telescopic joint structure with the maintenance-free and corrosion-resistant functions as claimed in claim 1, which is characterized in that: the connecting and injecting structure (31) is of an integrated structure, and liquid anticorrosive paint is coated between the fixed flange (312) and the embedded flange (2).