CN218972033U

CN218972033U - Drainage pipeline butt joint structure

Info

Publication number: CN218972033U
Application number: CN202223561404.7U
Authority: CN
Inventors: 司启; 左晓俊; 刘振善; 彭爱龙
Original assignee: Anhui Yajing Rainwater Utilization Technology Co ltd
Current assignee: Anhui Yajing Rainwater Utilization Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-05
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of drainage pipelines, in particular to a drainage pipeline butt joint structure. The drainage pipeline butt joint structure comprises a sleeve pipe, wherein the sleeve pipe is used for connecting two concrete drainage pipes lined with PE layers. The sleeve has a first connection for embedding in the first concrete drain pipe and a second connection for embedding in the second concrete drain pipe. The sleeve comprises an inner layer and an outer layer, and an electric heating wire for hot melt connection is arranged between the inner layer and the outer layer. The electric heating wire is wound on the inner layer along the axial direction of the sleeve. The electric heating wire is provided with a first connector and a second connector which are used for extending out of the outer layer. According to the drainage pipeline butt joint structure, the sleeve and the lining PE layer of the concrete drainage pipe are thermally welded together by using the electric heating wires, so that the butt joint construction difficulty of the drainage pipeline is greatly reduced, and the sealing performance of the drainage pipeline is improved.

Description

Drainage pipeline butt joint structure

Technical Field

The utility model relates to the technical field of drainage pipelines, in particular to a drainage pipeline butt joint structure.

Background

In municipal drainage systems, municipal drainage pipes are commonly utilized to transport rainwater and sewage collected at the surface. At present, a commonly used drainage pipeline is a reinforced concrete pipe or a glass fiber reinforced plastic sand inclusion pipe. In use, the two types of drainage pipelines have the defects that the inner pipe wall is rough, abrasion is easy to increase in the drainage process, and the service life is difficult to meet the requirements. Moreover, in the laying process of the existing drainage pipeline, the butt joint process between adjacent pipelines is complex, and the tightness of the butt joint position of the pipelines is difficult to ensure.

Through the search, chinese patent document CN215488112U discloses a polyester resin concrete pipe and a connection structure thereof. The connecting structure comprises a resin concrete pipe body, a water-swelling rubber ring, a rubber groove, a steel joint and a fiber layer of the resin concrete pipe body. The rubber groove end of the resin concrete pipe body is inserted into the steel joint end of the adjacent resin concrete pipe body. The body of the resin concrete pipe body glue groove end and the body contact part of the adjacent resin concrete pipe body steel joint end are clamped with a buffer material layer. And a sealing rubber ring matched with the gap of the rubber groove is arranged in the rubber groove.

According to the connecting structure, the water-swelling rubber ring and the sealing rubber ring are arranged at the end part of the pipeline, so that the connection tightness between the resin concrete pipes is enhanced. However, in the practical use process of the connecting structure, on one hand, the assembly difficulty between the resin concrete pipes is high, and the mounting position needs to be repeatedly adjusted for multiple times so as to meet the mounting requirement; on the other hand, the water-swelling rubber ring and the sealing rubber ring at the joint are easy to seal and lose efficacy when being vibrated, thereby causing water leakage of the drainage pipeline and affecting the stability of the urban drainage system.

In summary, how to design a docking structure in the process of laying the drainage pipeline for reducing the docking construction difficulty of the drainage pipeline and improving the sealing performance of the drainage pipeline becomes a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to provide a butt joint structure for a drainage pipeline in the laying process, which is used for reducing the butt joint construction difficulty of the drainage pipeline and improving the sealing performance of the drainage pipeline.

In order to achieve the above purpose, the present utility model adopts the following scheme: the utility model provides a drainage pipeline butt joint structure, which comprises a sleeve pipe, wherein the sleeve pipe is used for connecting two concrete drainage pipes lined with PE layers;

the sleeve is provided with a first connecting part used for being embedded into the first concrete drain pipe and a second connecting part used for being embedded into the second concrete drain pipe;

the sleeve comprises an inner layer and an outer layer, and an electric heating wire for hot melt connection is arranged between the inner layer and the outer layer;

the electric heating wire is wound on the inner layer along the axial direction of the sleeve, and a first connector and a second connector which are used for extending out of the outer layer are arranged on the electric heating wire.

Preferably, the electric heating wire is spirally wound on the inner layer along the axial direction of the sleeve. So set up, be favorable to the heating wire to coil on the outer wall of inlayer uniformly, when being convenient for heat, electric heating wire heats the sleeve pipe uniformly, and then makes sleeve pipe and the more even thermoweld of lining PE layer of concrete drain pipe be in the same place to further promoted drainage pipe's sealed effect.

Preferably, the outer wall of the sleeve is coated with a resin concrete layer, the resin concrete layer is located between the first connecting portion and the second connecting portion, one end, close to the first connecting portion, of the resin concrete layer forms a first step, and one end, close to the second connecting portion, of the resin concrete layer forms a second step. So set up, when sleeve pipe and concrete drain pipe assembly, first step is used for playing axial spacing effect to first concrete drain pipe, and the second step is used for playing axial spacing effect to second concrete drain pipe to further promoted sheathed tube mounted position precision.

Preferably, the outer diameter of the resin concrete layer is equal to the outer diameter of the concrete drain pipe.

Preferably, the outer side of the resin concrete layer is sleeved with a sheath, a first slot for embedding the first concrete drain pipe is formed between the sheath and the first connecting part, and a second slot for embedding the second concrete drain pipe is formed between the sheath and the second connecting part. So set up, the sheath is used for reinforcing sleeve pipe and concrete drain pipe junction's radial bearing capacity, and then has improved drainage pipe's whole shock resistance.

Preferably, both the first and second connectors extend from a central portion of the outer layer. So set up, be convenient for implement the power supply to electric heating wire through first joint and second joint, further reduced sleeve pipe heat fusion's the operation degree of difficulty, improved drainage pipe's laying efficiency.

Preferably, the resin concrete layer is provided with through holes for the first joint and the second joint to protrude.

Preferably, the length of the sheath is greater than the length of the cannula. The arrangement is favorable for protecting the joint of the sleeve and the concrete drain pipe better, and the sealing performance of the drain pipe is further improved.

Compared with the prior art, the drainage pipeline butt joint structure provided by the utility model has the following substantial characteristics and improvements: according to the drainage pipeline butt joint structure, the two lining PE layers of the concrete drainage pipe are connected through the sleeve, the electric heating wire is embedded in the sleeve, the sleeve and the lining PE layers of the concrete drainage pipe are thermally welded together through the electric heating wire, the butt joint construction difficulty of the drainage pipeline is greatly reduced, and the sealing performance of the drainage pipeline is improved.

Drawings

FIG. 1 is a schematic perspective view of a butt joint structure of a drain pipeline according to embodiment 1 of the present utility model;

FIG. 2 is a schematic view of the internal structure of a drain pipe docking structure of FIG. 1;

FIG. 3 is a schematic diagram showing an assembling structure of a butt joint structure of a drain pipeline according to embodiment 1 of the present utility model;

FIG. 4 is a schematic perspective view of a butt joint structure of a drain pipeline according to embodiment 2 of the present utility model;

FIG. 5 is a schematic view of the internal structure of a drain pipe docking structure of FIG. 4;

FIG. 6 is a schematic diagram showing an assembling structure of a butt joint structure of a drain pipe according to embodiment 2 of the present utility model;

FIG. 7 is a schematic diagram showing an assembling structure of a butt joint structure of a drain pipe according to embodiment 3 of the present utility model.

Reference numerals: 1. a sleeve; 2. an inner layer; 3. an outer layer; 4. an electric heating wire; 5. a first connection portion; 6. a second connecting portion; 7. a first concrete drain pipe; 8. a second concrete drain pipe; 9. a first joint; 10. a second joint; 11. a resin concrete layer; 12. a first step; 13. a second step; 14. and (3) a sheath.

Detailed Description

The following detailed description of specific embodiments of the utility model refers to the accompanying drawings.

As shown in fig. 1-7, the embodiment of the utility model provides a drainage pipeline butt joint structure, which aims to reduce the butt joint construction difficulty of a drainage pipeline and improve the sealing performance of the drainage pipeline.

According to the drainage pipeline butt joint structure provided by the embodiment of the utility model, the two lining PE layers of the concrete drainage pipe are connected through the sleeve, the electric heating wire is embedded in the sleeve, and the sleeve and the lining PE layers of the concrete drainage pipe are thermally welded together by using the electric heating wire, so that the butt joint construction difficulty of the drainage pipeline is greatly reduced, and the sealing performance of the drainage pipeline is improved.

Example 1

As shown in fig. 1 in combination with fig. 3, a drain pipe docking structure includes a sleeve 1. The sleeve 1 is used for connecting two concrete drain pipes lined with PE layers. The sleeve 1 has a first connection 5 for embedding a first concrete drain pipe 7 and a second connection 6 for embedding a second concrete drain pipe 8.

As shown in fig. 2, the sleeve 1 comprises an inner layer 2 and an outer layer 3. An electric heating wire 4 for hot melt connection is arranged between the inner layer 2 and the outer layer 3.

Wherein the electric heating wire 4 is wound on the inner layer 2 along the axial direction of the sleeve 1. As shown in fig. 1, the electric heating wire 4 is provided with a first connector 9 and a second connector 10 for extending out of the outer layer 3.

For example, the electric heating wire 4 is spirally wound around the inner layer 2 along the axial direction of the sleeve 1. So set up, be favorable to the heating wire to coil on the outer wall of inlayer 2 uniformly, when being convenient for heat, electric heating wire 4 heats sleeve pipe 1 uniformly, and then makes sleeve pipe 1 and the inside lining PE layer of concrete drain pipe more even heat fusion be in the same place to further promoted drainage pipe's sealed effect.

Both the first tab 9 and the second tab 10 extend from the middle of the outer layer 3. So set up, be convenient for implement the power supply to electric heating wire 4 through first joint 9 and second joint 10, further reduced sleeve pipe 1 thermoweld's the operation degree of difficulty, improved drainage pipe's laying efficiency.

When the drainage pipeline butt joint structure provided in the embodiment 1 of the present utility model is used, as shown in fig. 3, a positioning step is reserved at the connection position of the first concrete drainage pipe 7 and the second concrete drainage pipe 8. The positioning steps are used for respectively playing an axial limiting role on the first connecting part 5 and the second connecting part 6 when the sleeve 1 is assembled.

The sleeve 1 is made of thermoplastic resin material, so that the sleeve is convenient to form good thermal welding with the lining PE layer of the concrete drain pipe. For example, the sleeve 1 is a polyethylene tube.

Example 2

On the basis of example 1, as shown in fig. 4 and 5, the outer wall of the sleeve 1 is coated with a resin concrete layer 11. The resin concrete layer 11 is located between the first connection part 5 and the second connection part 6. As shown in fig. 6, the resin concrete layer 11 forms a first step 12 at an end near the first connection portion 5. The resin concrete layer 11 forms a second step 13 at one end near the second connecting portion 6. So set up, when sleeve pipe 1 and concrete drain pipe assembly, first step 12 is used for playing axial spacing effect to first concrete drain pipe 7, and second step 13 is used for playing axial spacing effect to second concrete drain pipe 8 to further promoted sleeve pipe 1's mounted position precision.

As shown in fig. 4, the resin concrete layer 11 is provided with through holes for the first joint 9 and the second joint 10 to protrude.

Example 3

On the basis of example 2, as shown in fig. 7, the outer diameter of the resin concrete layer 11 is equal to the outer diameter of the concrete drain pipe.

As shown in fig. 7, a sheath 14 is provided around the resin concrete layer 11. A first socket for embedding the first concrete drain pipe 7 is formed between the jacket 14 and the first connection portion 5. A second socket for embedding the second concrete drain pipe 8 is formed between the jacket 14 and the second connection part 6. So set up, sheath 14 is used for reinforcing sleeve pipe 1 and concrete drain pipe junction's radial bearing capacity, and then has improved drainage pipe's whole shock resistance.

For example, the length of the sheath 14 is greater than the length of the cannula 1. The arrangement is beneficial to the sheath 14 to better protect the joint of the sleeve 1 and the concrete drain pipe, and further improves the sealing performance of the drain pipe.

The present utility model is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be provided in addition to the above embodiments. Any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art, which are within the spirit and principles of the present utility model, are intended to be included within the scope of the present utility model.

Claims

1. The butt joint structure of the drainage pipeline is characterized by comprising a sleeve, wherein the sleeve is used for connecting two concrete drainage pipes lined with PE layers;

2. The drain pipe interfacing structure of claim 1, wherein the electrical heater wire is helically wound on the inner layer along the axial direction of the sleeve.

3. The drainage pipe butt joint structure according to claim 1, wherein the outer wall of the sleeve is coated with a resin concrete layer, the resin concrete layer is located between the first connecting portion and the second connecting portion, one end of the resin concrete layer, which is close to the first connecting portion, forms a first step, and one end of the resin concrete layer, which is close to the second connecting portion, forms a second step.

4. A drain pipe docking structure according to claim 3, characterized in that the outer diameter of the resin concrete layer is equal to the outer diameter of the concrete drain pipe.

5. The drainage pipe docking structure according to claim 4, wherein a sheath is sleeved on the outer side of the resin concrete layer, a first slot for embedding a first concrete drainage pipe is formed between the sheath and the first connecting portion, and a second slot for embedding a second concrete drainage pipe is formed between the sheath and the second connecting portion.

6. The drain pipe docking structure of claim 1, wherein the first joint and the second joint each extend from a central portion of the outer layer.

7. A drain pipe docking structure according to claim 3, characterized in that the resin concrete layer is provided with through holes for the first joint and the second joint to protrude.

8. The drain pipe docking structure of claim 5, wherein the length of the sheath is greater than the length of the sleeve.