CN210614564U - Drain pipe - Google Patents

Abstract

A drain pipe belongs to the field of tunnel engineering. The drain pipe comprises a hollow pipe body, a fixing piece and a hollow auxiliary pipe. The hollow auxiliary pipe is connected to the outer wall of the hollow pipe body through a fixing piece and is communicated with fluid. The drain pipe is simple in structure, convenient to install, simple to clean and high in efficiency, and does not occupy the original water passing section of the tunnel drain pipe.

Description

Drain pipe

Technical Field

The application relates to the field of tunnel engineering, in particular to a drain pipe.

Background

At present, composite lining is often adopted to construct tunnels in the field of tunnel engineering. In the construction process, drainage pipes (including circumferential drainage pipes, longitudinal drainage pipes, transverse drainage pipes, central ditches/pipes and the like) are usually laid between the primary support and the secondary lining for discharging seepage water behind the secondary lining and the waterproof board so as to eliminate water pressure.

However, during the operation of the tunnel, silt and sediment brought out by seepage water usually cause the lower part of the drainage pipe to be blocked, thereby causing the consequences of water pressure accumulation or seepage water from the cracked lining. Such problems are particularly acute in tunnels constructed in karst development areas. The main reasons for this are: the underground water is usually rich in magnesium ions and calcium ions, and crystals are gradually formed at the bottom of the water flow to block a tunnel drainage pipe.

Since the drain pipe is usually closed behind the secondary lining after the tunnel has been constructed, it is not possible to open the lining structure to inspect and clean the drain pipe. Currently, dredging usually adopts an inspection well and a grit chamber arranged in a central ditch. But this only cleans up the clogging of the central ditch. The local drain pipes on two sides of the lining are cleaned in a high-pressure water and high-pressure air mode, but the range of the drain pipes capable of being cleaned is limited. The conventional measures cannot effectively clear the blockage of the tunnel drainage system and restore the drainage capacity of the tunnel drainage system.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings, the present application provides a drain pipe to partially or wholly improve, or even solve, the problems in the related art.

The application is realized as follows:

in a first aspect of the present application, a drain is provided in an example.

The drain pipe comprises a hollow pipe body, a fixing piece and a hollow auxiliary pipe.

The hollow tube body is formed by extending a first end to a second end, and the tube wall of the hollow tube body comprises an inner wall for limiting a first tube cavity and an outer wall opposite to the inner wall.

The fixing piece is provided with a first combining part, a second combining part and a fluid channel penetrating through the first combining part and the second combining part. The fixing piece is connected to the outer wall of the hollow tube body through the first connecting part and communicated with the tube cavity through the fluid channel.

The hollow accessory tube is connected with the second combining part of the fixing piece, and a second tube cavity of the hollow accessory tube is communicated with the fluid channel.

Before laying the tunnel drain pipe, beat the connecting hole at tunnel drain pipe outer wall top according to the determining deviation, and beat the connecting hole on wasing the accessory pipe according to same interval, insert hollow fixing device respectively tunnel drain pipe and wash the connecting hole on the accessory pipe, will wash the accessory pipe and fix at tunnel drain pipe outer wall, will connect tunnel drain pipe and wash the accessory pipe and put in preset position after wrapping up with the non-woven fabrics winding, keep washing the accessory pipe at the top of tunnel drain pipe, and reserve the joint of wasing the accessory pipe in the delivery port position of tunnel drain pipe, be connected with the washing pipeline that sets up in the tunnel. After tunnel operation a period, when needs wash in to the tunnel drain pipe, open cleaning equipment and valve, will wash water or washing liquid and let in along the tunnel drain pipe full length lay with fixed washing accessory pipe, wash water or washing liquid this moment also can get into the tunnel drain pipe from hollow fixing device, wash the silt of sedimentation in the tunnel drain pipe or dissolve the incrustation scale in the tunnel drain pipe. In the implementation process, the tunnel drain pipe and the cleaning auxiliary pipe can be synchronously installed, the cleaning auxiliary pipe does not occupy the water passing space in the tunnel drain pipe, cleaning water or cleaning liquid is input from the upper part of the tunnel drain pipe, and the cleaning effect is good.

With reference to the first aspect, in a first possible implementation manner of the first aspect of the present application, the fluid passage of the fixing member is of a tubular structure and is variable in diameter, and a pipe diameter of the fluid passage at the first joint portion is smaller than a pipe diameter of the fluid passage at the second joint portion.

The fixed part is used as a fluid delivery outlet and has a variable diameter from big to small. Therefore, when the fluid is conveyed, the fluid forms a jet flow at the conveying outlet under the action of pressure, and a large coverage area and a washing effect can be achieved.

In combination with the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect of the present application, the fluid channel is a curved tubular structure.

The fluid channel curvature may further increase the ejection pressure of its fluid, thereby increasing the footprint and ejection pressure to some extent.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect of the present application, a tip of the first coupling portion is located within the first lumen.

The tail end of the first combining part of the fixing piece is positioned in the first pipe cavity, so that water flow is easier to splash in the hollow pipe body.

With reference to the first aspect, in a fourth possible embodiment of the first aspect of the present application, the hollow appendage is provided with a water jet, the water jet communicating with the second lumen.

The water spray holes of the hollow auxiliary pipe can be used for spraying water to play a role in spraying, brushing and cleaning.

With reference to the first aspect or the first or second or fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect of the present application, the number of the hollow auxiliary tubes is two or more, the cross section of the hollow tube body is a circular structure, the tube wall is formed by a first semicircular arc-shaped wall and a second semicircular arc-shaped wall which are distributed at two radial sides, and all the hollow auxiliary tubes are located on the first semicircular arc-shaped wall.

The hollow auxiliary pipe is positioned at one side of the hollow pipe body, so that the installation of the drain pipe is facilitated.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect of the present application, the hollow pipe body is provided with a drainage hole, and the drainage hole penetrates from the outer wall to the inner wall along a radial direction of the hollow pipe body and communicates with the first pipe cavity.

The drain hole can drain the inside of the drain pipe so as to maintain the amount of water therein at an appropriate level.

With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect of the present application, the drainage hole is located in the first semicircular arc-shaped wall.

With reference to the first aspect, in an eighth possible implementation manner of the first aspect of the present application, the drain pipe includes a spray head, the spray head is connected to the first combining portion of the fixing member, and the spray head is located in the first pipe cavity.

The shower nozzle has better watering effect, and can change when changing.

In a ninth possible embodiment of the first aspect of the present application in combination with the first aspect, the hollow accessory tube is connected with a fitting configured to connect with a water pipe.

The joint is used for connecting the hollow auxiliary pipe, and is convenient for conveying water flow.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a first drainage pipe provided in an embodiment of the present application;

FIG. 2 shows a schematic cross-sectional structure of the drain pipe of FIG. 1;

fig. 3 shows a schematic cross-sectional structure of a second type of drain pipe in an example of the present application;

FIG. 4 is a schematic cross-sectional view of a third type of drain in the present example;

fig. 5 shows a schematic cross-sectional structure of a fourth drain pipe in the present example;

fig. 6 shows a schematic cross-sectional structure of a fifth type of drain pipe in an example of the present application.

Icon: 100-a drain pipe; 101-a hollow tube body; 102-hollow accessory tube; 201-a water drainage hole; 1012-a first lumen; 1023-a second lumen; 103-a fixing member; 1021-an outer wall; 1022-an inner wall; 104-a spray head; 202-blowhole.

Detailed Description

Referring to fig. 1 and 2, an example of a drain pipe 100 is disclosed, which is constructed as follows.

The drain pipe 100 includes a hollow pipe body 101, a fixing member 103, and a hollow auxiliary pipe 102. The fixing member 103 serves as an intermediate member for connecting the hollow auxiliary pipe 102 to the hollow pipe body 101. The hollow pipe 101 is used for conveying water flow, the water flow is input into the hollow pipe 101 through the fixing member 103, and the pipe diameter of the hollow pipe 101 is significantly larger than that of the hollow auxiliary pipe 102.

The hollow pipe body 101 is extended from a first end to a second end to have an appropriate length. The wall of the hollow tube 101 includes an inner wall 1022 defining a first lumen 1012, an outer wall 1021 opposite the inner wall 1022. Thus, the distance between the inner wall 1022 and the outer wall 1021 is the wall thickness of the hollow tube 101, and the extension distance of the hollow tube 101 is its length. The thickness and length of the hollow pipe 101 can be adjusted according to actual construction requirements, and are not particularly limited. The hollow pipe body 101 may be a square pipe or a circular pipe, and may be selected and applied according to actual conditions. In the present example, the hollow tubular body 101 is selected to be a circular tube, i.e., a circular cross-section.

Since the hollow pipe 101 needs to be drained in time to avoid blockage or poor drainage, the hollow pipe 101 is provided with a drainage hole 201, and the drainage hole 201 penetrates from the outer wall 1021 to the inner wall 1022 along the radial direction of the hollow pipe 101 and is communicated with the first pipe cavity 1012. With this arrangement, when the flow of the cleaning water in the hollow tube 101 is large and the discharge is slow, the flow of the water can be discharged through the drain hole 201.

The hollow appendage 102 is a tube for conveying a water stream, and is attached to the outer surface (outer wall 1021) of the hollow tube 101. Because its pipe diameter is littleer for the pipe diameter of hollow body 101, consequently, it can regard as fluid conveying pipeline, and can not occupy too much space to do not disturb the construction of hollow body 101. Further, the hollow appendage 102 is coupled to a fitting (e.g., a double-ended fitting) configured to couple to a water line for quick connection when cleaning of the drain pipe 100 is desired.

The hollow appendage 102 is secured to the hollow body 101 and is in fluid communication through a junction to deliver, for example, a flow of water to the hollow body 101 through the hollow appendage 102. Based on the flushing function, the hollow appendage tube 102 can be provided with a water jet 202 according to the design intent, the water jet 202 communicating with the second lumen 1023. Thus, when the hollow auxiliary pipe 102 feeds water to the hollow pipe body 101, it can also spray water to the outside through the water spray holes 202 to realize a cleaning action.

The hollow appendage 102 can be adjusted according to the diameter, size and specification of the hollow tube body 101. Typically, the number of hollow accessory tubes 102 is one. In other examples, the number of hollow accessory tubes 102 is two and more (e.g., 2, 3, 4, or more). In order to clearly define the arrangement position of the hollow accessory pipe 102, the hollow pipe body 101 is defined as follows: the cross section of the hollow pipe body 101 is a circular structure (that is, the hollow pipe body 101 is a circular pipe), the pipe wall is formed by a first semicircular arc-shaped wall and a second semicircular arc-shaped wall which are distributed at two radial sides, and the hollow auxiliary pipe 102 is located on the first semicircular arc-shaped wall. Based on this explanation, the drain holes 201 provided in the pipe wall of the hollow pipe body 101 in some examples are provided in the first semicircular arc wall.

The hollow appendage tube 102 and the hollow tube body 101 can be connected by various alternative means such as welding, bolting, etc. In the present example, the drain pipe 100 is provided with a fixing member 103, and the hollow auxiliary pipe 102 is connected to the hollow pipe body 101 through the fixing member 103. In the example, the fixture 103 has a first joint, a second joint, and a fluid channel extending through the first joint and the second joint. The fixing member 103 is connected to the outer wall 1021 of the hollow tube 101 at a first joint portion and communicates with the lumen through a fluid passage. Based on such a structure of the fixing member 103, the hollow appendage 102 is connected to the second coupling portion of the fixing member 103, and the second lumen 1023 of the hollow appendage 102 communicates with the fluid passage. In other words, the first coupling portion of the fixing member 103 is connected to the hollow pipe body 101, and the second coupling portion of the fixing member 103 is connected to the hollow accessory pipe 102. Further, the tip of the first junction is located within the first lumen 1012. Thus, the fixture 103 can discharge the water flow completely inside the hollow tube 101 (the first lumen 1012) to flush out the silt and the like. In this regard, as a supplementary example, the drain 100 further includes a spray head 104 (shown in fig. 3), the spray head 104 is connected to the first coupling portion of the fixing member 103, and the spray head 104 is located in the first lumen 1012. The spray head 104 may be a pressurized spray head 104 or a rotating spray head 104 to enhance the effectiveness of the flushing.

Wherein the fixing element 103 is connected to the respective component, for example by screwing or riveting or interference fit. Meanwhile, the fluid passage of the fixing member 103 is also communicated with the first lumen 1012 of the hollow tube body 101 and the second lumen 1023 of the hollow accessory tube 102.

In some alternatives, the fluid passage of the fixture 103 is tubular in structure and is of variable diameter. For the fluid passage scheme of the variable diameter fixing member 103, the pipe diameter of the fluid passage at the first joint portion is smaller than the pipe diameter of the fluid passage at the second joint portion. Thus, when water is supplied from the hollow attachment pipe 102 to the hollow pipe body 101, the water flows from the large cross-sectional section to the small cross-sectional section of the fluid passage. In this way, the water flow can generate a jet of spray/shower, which can have a greater space coverage and scouring effect. Further, in another example, the fluid channel is a curved tubular structure, for example, the fluid channel is a spiral tube.

To facilitate the solution of the water drainage pipe 100 for those skilled in the art, the water drainage pipe 100 in the example is specifically described below.

A tunnel drain pipe 100 with a cleaning auxiliary pipe comprises the tunnel drain pipe 100, the cleaning auxiliary pipe and a fixing device. The washing attachment is fixed to an outer wall 1021 of the tunnel drain 100 by a fixing means, and the fixing means is hollow so that washing water or washing liquid in the washing attachment enters the tunnel drain 100.

During the concrete construction, before the tunnel drain pipe 100 is laid, the following operation is carried out:

connecting holes are drilled at the top of the outer wall 1021 of the tunnel drain pipe 100 at certain intervals, and connecting holes are drilled at the same intervals on the cleaning auxiliary pipe.

As an alternative, referring to fig. 4, a drainage hole 201 may be provided on the tunnel drainage pipe 100, so that the seepage water at the back of the tunnel lining can be drained into the tunnel drainage pipe 100. Similarly, the washing attachment can be perforated with water jets 202 at regular intervals, as shown in FIG. 4. Therefore, the cleaning water or cleaning liquid in the cleaning attached pipe can also synchronously clean silt and attachments attached to the drain hole 201 of the tunnel drain pipe 100 and the non-woven fabric wrapped outside the pipeline, so that the water seepage discharge channel is kept smooth. In addition, according to design requirements, as shown in fig. 5 and 6, the drain pipe may adopt double or multiple cleaning auxiliary pipes, one of the cleaning auxiliary pipes is connected with the tunnel drain pipe 100 through a fixing device, and the other cleaning auxiliary pipes are connected with the cleaning auxiliary pipe through an adhesive manner and are attached to the outer wall 1021 of the tunnel drain pipe 100 together. On different washing accessory pipes, the water spraying holes 202 can be drilled according to the needs and are respectively connected with different washing devices. In the above-mentioned realization process, can be according to the abluent needs of tunnel drain pipe 100, carry different liquid in step to can cover the bigger area of tunnel drain pipe 100 outer wall 1021, the cleaning performance is better.

Then, the hollow fixing means is inserted into the connection holes of the tunnel drain pipe 100 and the cleaning attachment pipe, respectively, and the cleaning attachment pipe is fixed to the outer wall 1021 of the tunnel drain pipe 100. In addition, the fixing device can select an insertion type joint or an insertion type joint with a spray head 104 at one end according to requirements, so that the washing auxiliary pipe is stably connected with the tunnel drain pipe 100, and different spraying effects are formed.

And then, wrapping the connected tunnel drain pipe 100 and the cleaning auxiliary pipe by using non-woven fabric, placing the wrapped pipe at a preset position (paying attention to keeping the cleaning auxiliary pipe at the top of the tunnel drain pipe 100), reserving a joint of the cleaning auxiliary pipe at the water outlet part of the tunnel drain pipe 100, and connecting the joint with a cleaning pipeline arranged in the tunnel.

In the above construction process, the tunnel drain pipe 100 and the cleaning auxiliary pipe can be installed simultaneously, the cleaning auxiliary pipe does not occupy the water passing space in the tunnel drain pipe 100, cleaning water or cleaning liquid is input from the upper part of the tunnel drain pipe 100, and the cleaning effect can be adjusted as required.

After the construction of the drain pipe 100 is completed, it can be used normally. After the tunnel is operated for a period of time, when the interior of the tunnel drainage pipe 100 needs to be cleaned, the cleaning equipment and the valve are opened, and cleaning water or cleaning liquid is introduced into the cleaning auxiliary pipe which is laid and fixed along the whole length of the tunnel drainage pipe 100.

At this time, the cleaning water or cleaning liquid may also enter the tunnel drain 100 from the hollow fixing device, wash the silt deposited in the tunnel drain 100 or dissolve the scale in the tunnel drain 100.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A drain pipe, comprising:

the pipe comprises a hollow pipe body and a first pipe body, wherein the hollow pipe body is formed by extending from a first end to a second end, and the pipe wall of the hollow pipe body comprises an inner wall for limiting a first pipe cavity and an outer wall opposite to the inner wall;

the fixing piece is provided with a first combining part, a second combining part and a fluid channel penetrating through the first combining part and the second combining part, and the fixing piece is connected to the outer wall of the hollow tube body through the first combining part and is communicated with the tube cavity through the fluid channel;

and the hollow auxiliary pipe is connected with the second combining part of the fixing piece, and a second pipe cavity of the hollow auxiliary pipe is communicated with the fluid channel.

2. The drain pipe of claim 1 wherein the fluid passageway of the retainer is tubular and of variable diameter, and the diameter of the fluid passageway at the first junction is less than the diameter of the fluid passageway at the second junction.

3. The drain of claim 2 wherein the fluid passageway is a curved tubular structure.

4. The drain pipe of any of claims 1 to 3 wherein the distal end of the first joining portion is located within the first lumen.

5. The drain of claim 1 wherein the hollow appendage is provided with a water jet that communicates with the second lumen.

6. The drainage pipe according to claim 1, 2, 3 or 5, wherein the number of the hollow auxiliary pipes is two or more, the cross section of the hollow pipe body is a circular structure, the pipe wall is composed of a first semicircular arc-shaped wall and a second semicircular arc-shaped wall which are distributed at two sides in the radial direction, and all the hollow auxiliary pipes are positioned on the first semicircular arc-shaped wall.

7. The drain of claim 6 wherein the hollow body is provided with a weep hole that extends radially through the hollow body from the outer wall to the inner wall and communicates with the first lumen.

8. The drain of claim 7 wherein the weep hole is located in the first radiused wall.

9. The drain of claim 1, wherein the drain includes a spray head coupled to the first coupling portion of the fixture, the spray head being positioned within the first lumen.

10. The drain of claim 1 wherein the hollow appendage has a fitting connected thereto that is configured to connect to a water pipe.

Images