CN214248645U - Muddy water balance shield constructs quick-witted pipeline extension device and connects a tub ware thereof - Google Patents

Abstract

The utility model discloses a slurry balance shield machine pipeline extension device and a pipe connector thereof, which comprises a first pipeline with a ball-passing limiting device, a second pipeline with a second valve, a lifting gate device and a third pipeline with a first valve, which are arranged in sequence along the driving direction, wherein the first pipeline is detachably and hermetically connected with the second pipeline; the lifting gate device comprises a driving part, an elastic cleaning part, a ball collecting and hitting pipeline and a conversion pipeline which are arranged in parallel, wherein a water injection hole used for being connected with a high-pressure water pump is formed in the ball collecting and hitting pipeline. The application provides balanced shield of muddy water constructs quick-witted pipeline extension device and connects the pipe ware thereof, and mud need not have the transportation by reverse, the mechanism is simple, economic nature is good, the operation is convenient with the maintenance, utilizes the pipeline that the cleaning element plugged up in the tunnel, can avoid the leakage of mud effectively, has reduced the mud pollution in tunnel, has reduced the intensity of labour and the time cost of manual cleaning.

Description

Muddy water balance shield constructs quick-witted pipeline extension device and connects a tub ware thereof

Technical Field

The utility model relates to a tunnel machine technical field, more specifically say, relate to a muddy water balance shield constructs quick-witted pipeline extension device and connects a tub ware thereof.

Background

The slurry balance shield machine is widely applied to underground tunnel engineering at present. The slurry balance shield machine discharges slag in a pipeline mode, and a new slurry pipe needs to be connected at a certain distance along with the tunneling of the slurry balance shield machine in the tunnel construction process so as to ensure the continuity of a slurry pipeline slag discharging system in the tunnel. In the process of connecting a new mud pipe, a large amount of mud leaks out from the position of original pipeline disconnection, causes the cost extravagant, and later stage clearance is wasted time and energy, influences the tunnel civilized construction.

The mud pipeline that present commonly used extends the system and generally adopts the sewage case to collect the mud that leaks when taking over, and this mode is because of the structural constraint of sewage case, supporting platform truck, and the mud that leaks can not get into the sewage case completely when taking over solves the problem that the mud leaks, and because of mud dregs mixture segregation deposit lead to the sediment in the sewage case, clear up very troublesome.

In summary, how to effectively solve the problems of slurry leakage and the like caused by the fact that a sewage tank is adopted to collect slurry in a slurry pipeline extension system is a problem to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a first aim at provides a muddy water balance shield constructs quick-witted pipeline extension device's pipe connector, and the structural design of this pipe connector can be solved mud pipeline extension system effectively and adopt the sewage case to collect mud and have the problem that mud leaked, the utility model discloses a second aim at provides a muddy water balance shield constructs quick-witted pipeline extension device including above-mentioned pipe connector.

In order to achieve the first object, the present invention provides the following technical solutions:

a pipe connector of a pipeline extension device of a slurry balance shield machine comprises a first pipeline with a ball-passing limiting device, a second pipeline with a second valve, a lifting gate device and a third pipeline with a first valve, which are sequentially arranged along the tunneling direction, wherein the first pipeline is detachably and hermetically connected with the second pipeline;

the lift gate device includes drive assembly, has elastic cleaning element and the receipts ball pipeline of playing and the conversion pipeline that sets up side by side, drive assembly is used for driving receive the ball pipeline of playing with the conversion pipeline removes, in order to realize with conversion pipeline detachably sealing connection in the third pipeline with between the second pipeline and will receive ball pipeline detachably sealing connection in the switching of second pipeline front end, cleaning element's diameter is greater than the second pipeline with the internal diameter of third pipeline, just it is provided with the water filling hole that is used for connecting high pressure water pump on the ball pipeline to receive the ball pipeline of playing, in order to promote cleaning element by receive the ball pipeline of playing the ball warp the second pipeline removes to first pipeline, cross ball limiting device and be used for detecting whether cleaning element reachs in the first pipeline.

Preferably, in the pipe connecting device, the lift gate device includes guide rails disposed oppositely, and two ends of the ball collecting and hitting pipeline and the two ends of the conversion pipeline are respectively matched with the guide rails to move along the guide rails synchronously under the driving of the driving part.

Preferably, in the pipe connecting device, the lift gate device includes pipe-replacing sealing plates which are arranged oppositely, two ends of the ball-collecting and hitting pipeline and the conversion pipeline are respectively and fixedly connected with the pipe-replacing sealing plates, and the pipe-replacing sealing plates are respectively and sealingly connected with the second pipeline and the third pipeline.

Preferably, in the pipe connecting device, the driving part is a driving oil cylinder.

Preferably, in the pipe connecting device, a ball receiving and playing pipeline is provided with a ball receiving signal device for detecting whether the cleaning component reaches the ball receiving and playing device.

Preferably, in the pipe connecting device, the ball receiving signal device is a photoelectric sensor.

Preferably, in the pipe connector, the ball-passing limiting device is electrically connected to the high-pressure water pump, and is configured to control the high-pressure water pump to be turned off when the cleaning component is detected to reach the first pipeline.

Preferably, in the pipe connecting device, the pipe connecting device further includes a service chamber communicated with the ball receiving and playing pipeline when the switching pipeline is hermetically connected between the third pipeline and the second pipeline, and the service chamber is connected with a sending component used for pushing the cleaning component into the ball receiving and playing pipeline.

Preferably, in the pipe connector, the sending part is a high-pressure air pump.

The utility model provides a pipe connector of slurry balance shield constructs quick-witted pipeline extension device includes first pipeline, second pipeline, lift gate device and the third pipeline that sets gradually along the tunnelling direction. The first pipeline is hermetically connected with the second pipeline, the first pipeline is provided with a ball passing limiting device for detecting whether the cleaning component reaches the first pipeline, and the second pipeline is provided with a second valve; a first valve is arranged on the third pipeline; the lift gate device includes drive assembly, have elastic cleaning means and the receipts ball pipeline of batting and the conversion pipeline that sets up side by side, drive assembly is used for driving and receives the ball pipeline of batting and the conversion pipeline removal, in order to realize with conversion pipeline detachably sealing connection between third pipeline and second pipeline and with the switching of receiving ball pipeline detachably sealing connection in second pipeline front end, cleaning means's diameter is greater than the internal diameter of second pipeline and third pipeline, be provided with the water injection hole that is used for connecting high pressure water pump on the receipts ball pipeline of batting, in order to promote cleaning means when receiving ball pipeline sealing connection in second pipeline front end and second valve and open and move to first pipeline through the second pipeline by receiving ball pipeline of batting.

Use the utility model provides a pipe connector, when the shield constructs the machine tunnelling, conversion pipeline sealing connection is between third pipeline and second pipeline, and then normal tunnelling work. When the pipe is required to be connected, the first valve and the second valve are closed firstly, and slurry in a pipeline between the first valve and the second valve is pumped out. And then the switching pipeline connected between the third pipeline and the second pipeline is switched into a ball collecting and hitting pipeline through the driving part, the second valve is opened, the water injection hole is communicated with the high-pressure water pump, the cleaning part is separated from the ball collecting and hitting device under the pushing of the injected high-pressure water and enters the first pipeline through the second pipeline along the tunneling reverse direction, and the high-pressure water pump is closed to stop moving after the ball passing limiting device in the first pipeline detects the cleaning part. Because the diameter of the cleaning part is larger than the inner diameters of the first pipeline and the second pipeline and has elasticity, the slurry in the pipelines can be ensured not to leak in the moving process and after the cleaning part is moved into the first pipeline. And then the first pipeline and the second pipeline are disassembled, the second pipeline and the part between the second pipeline and the second pipeline are moved forwards along the tunneling direction, and a new slurry pipeline is connected between the first pipeline and the second pipeline. Then, the cleaning component is reset into the ball collecting and hitting device, and the switching pipeline is switched to be connected between the second pipeline and the third pipeline through the driving component, so that one-time pipeline extension is completed.

In conclusion, the pipe connecting device provided by the application has the advantages that the mud does not need to be transported, the mechanism is simple, the economy is good, the operation and the maintenance are convenient, the cleaning component is used for plugging the pipeline in the tunnel, the leakage of the mud can be effectively avoided, the mud pollution of the tunnel is reduced, and the labor intensity and the time cost of manual cleaning are reduced. And the cleaning component is connected into or moved out of the second pipeline by switching the ball collecting and hitting device and the conversion pipeline without conversion structures such as a tee joint, so that the damage of the cleaning component in the moving process is avoided.

In order to achieve the second purpose, the utility model also provides a muddy water balance shield constructs quick-witted pipeline extension device, and this muddy water balance shield constructs quick-witted pipeline extension device and includes any kind of pipe connector of the aforesaid. Because the pipe connector has the technical effects, the slurry balance shield machine pipeline extension device with the pipe connector also has corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pipe connector of a slurry balance shield machine pipeline extension device according to an embodiment of the present invention;

fig. 2 is a schematic view of the pipe connector corresponding to fig. 1 in a tunneling state;

fig. 3 is a schematic view of the pipe connector of fig. 1 in a pipe replacement state;

FIG. 4 is a schematic view showing a state where the lift gate device and the service chamber are connected;

FIG. 5 is a schematic structural view of the lift gate device;

FIG. 6 is a schematic view of a third conduit;

fig. 7 is a schematic view showing a connection state of the first pipe and the second pipe.

The drawings are numbered as follows:

the device comprises a first pipeline 1, a second pipeline 2, a lifting gate device 3, a third pipeline 4, a ball serving chamber 5, a ball passing limiting device 11, a flexible mechanism 12, a second valve 21, a first valve 41, a driving part 31, a cleaning part 32, a ball receiving and playing pipeline 33, a conversion pipeline 34, a pipe changing sealing plate 35, a water injection hole 331 and a ball receiving signal device 332; the arrow in figure 2 indicates the direction of the drive and the arrow in figure 3 indicates the position of the new slurry pipe.

Detailed Description

The embodiment of the utility model discloses muddy water balance shield constructs quick-witted pipeline extension device and connects a tub ware thereof to avoid the pipeline to extend the leakage of in-process mud, reduce the mud pollution in tunnel.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a pipe connector of a slurry balance shield machine pipeline extension device according to an embodiment of the present invention; fig. 2 is a schematic view of the pipe connector corresponding to fig. 1 in a tunneling state; fig. 3 is a schematic view of the pipe connector in fig. 1 in a pipe replacement state.

In a specific embodiment, the utility model provides a pipe connector of balanced shield of muddy water machine pipeline extension device includes first pipeline 1, second pipeline 2, lift gate device 3 and the third pipeline 4 that sets gradually along the direction of tunnelling. The tunneling direction shown in the figure is from right to left, and then the first pipeline 1, the second pipeline 2, the lifting gate device 3 and the third pipeline 4 are sequentially arranged from left to right.

The first pipeline 1 is detachably connected with the second pipeline 2 in a sealing mode, the first pipeline 1 is provided with a ball passing limiting device 11 used for detecting whether the cleaning component 32 reaches the first pipeline 1, and the second pipeline 2 is provided with a second valve 21. The first pipeline 1 and the second pipeline 2 are main mud pipelines, and are detachably and hermetically connected with each other so as to connect a new mud pipeline between the two. The second valve 21 may be a hydraulic slurry gate valve. The ball-passing limiting device 11 on the first pipeline 1 may specifically employ a proximity sensor such as a photoelectric switch to detect whether the cleaning component 32 reaches a corresponding position in the second pipeline 2.

The third pipeline 4 is provided with a first valve 41, the first valve 41 may specifically adopt a hydraulic slurry gate valve, and for the concrete structure of the hydraulic slurry gate valve, reference is made to the prior art and no further description is given here. The first pipe 1, the second pipe 2, and the third pipe 4 may be a single pipe or a multi-joint pipe, which may be hermetically connected, as needed.

The lift gate device 3 includes a driving member 31, a cleaning member 32 having elasticity, and a ball collecting and hitting duct 33 and a switching duct 34 which are provided in parallel.

The driving component 31 is used for driving the ball collecting and batting pipeline 33 and the conversion pipeline 34 to move so as to realize the switching of detachably and hermetically connecting the conversion pipeline 34 between the third pipeline 4 and the second pipeline 2 and detachably and hermetically connecting the ball collecting and batting pipeline 33 at the front end of the second pipeline 2. Further, during tunneling, as shown in fig. 2, the switching pipe 34 is hermetically connected between the second pipe 2 and the third pipe 4, and the three pipes are communicated with each other so as to smoothly pass slurry. Specifically, the front end of the ball receiving and playing pipeline 33 may be in a closed state or may be an opening, and when the front end of the ball receiving and playing pipeline 33 is in a sealed connection with the front end of the second pipeline 2, the other end of the ball receiving and playing pipeline 33 is in a sealed connection with the third pipeline 4. When the pipe is taken over, as shown in fig. 3, the ball receiving and hitting pipeline 33 is hermetically connected to the front end of the second pipeline 2, and specifically, the switching pipeline 34 may be disposed below the ball receiving and hitting pipeline 33, and the driving component 31 may drive the switching pipeline 34 and the ball receiving and hitting pipeline 33 to move down synchronously, so that two ends of the switching pipeline 34 are separated from the second pipeline 2 and the third pipeline 4, respectively, and the ball receiving and hitting pipeline 33 is moved to be opposite to the second pipeline 2 and the third pipeline 4 and is hermetically connected to the front end of the second pipeline 2, thereby realizing switching of the connection state. After the connection is completed, the above arrangement is repeated in reverse to switch the switching pipe 34 back to the sealing connection between the second pipe 2 and the third pipe 4. The sealing connection structure can adopt a sealing structure which is conventional in the prior art, such as a labyrinth seal and the like.

The diameter of the cleaning component 32 is larger than the inner diameters of the second pipeline 2 and the third pipeline 4, a water injection hole 331 for connecting a high-pressure water pump is arranged on the ball receiving and hitting pipeline 33, so that the cleaning component 32 is pushed to move to the first pipeline 1 from the ball receiving and hitting pipeline 33 through the second pipeline 2 when the ball receiving and hitting pipeline 33 is connected to the front end of the second pipeline 2 in a sealing manner and the second valve 21 is opened. Because the cleaning component 32 has elasticity and the diameter thereof is larger than the inner diameters of the second pipeline 2 and the third pipeline 4, the slurry in the pipelines can be ensured not to leak in the moving process and after moving into the first pipeline 1. The specific cleaning member 32 may be a cleaning column, a cleaning ball, or the like. Specifically, the water injection hole 331 is provided at the front end of the ball retrieving and hitting pipe 33 so that the cleaning member 32 is pushed by the high pressure water from the front to the rear, i.e., moved in the reverse direction of the driving.

Specifically, the pipe between the first valve 41 and the second valve 21 is connected with a slurry pump, for example, the third pipe 4 is connected with the slurry pump behind the first valve 41, or the second pipe 2 is connected with the slurry pump in front of the second valve 21, or the switching pipe 34 is connected with the slurry pump, so that the slurry in the pipe between the first valve 41 and the second valve 21 is pumped out after the first valve 41 and the second valve 21 are closed in a state that the switching pipe 34 is hermetically connected between the third pipe 4 and the second pipe 2. Alternatively, the mud pump may not be provided when the cleaning member 32 is sufficient to move the mud synchronously.

Use the utility model provides a pipe connector, when the shield constructs the machine tunnelling, conversion pipeline 34 sealing connection is between third pipeline 4 and second pipeline 2, and then normal tunnelling work. When a pipe connection is required, the first valve 41 and the second valve 21 are first closed, and the slurry in the pipeline between the first valve 41 and the second valve 21 is pumped out. Then the switching pipeline 34 connected between the third pipeline 4 and the second pipeline 2 is switched into a ball receiving and hitting pipeline 33 through the driving part 31, the second valve 21 is opened, the water injection hole 331 is communicated with the high-pressure water pump, the cleaning part 32 is separated from the ball receiving and hitting device under the pushing of the injected high-pressure water, the ball enters the first pipeline 1 through the second pipeline 2 along the tunneling reverse direction, and the high-pressure water pump is closed to stop the movement of the cleaning part 32 after the ball passing limiting device 11 in the first pipeline 1 detects the cleaning part 32. Since the cleaning member 32 has a diameter larger than the inner diameters of the first pipe 1 and the second pipe 2 and has elasticity, it is possible to prevent leakage of slurry in the pipes during and after movement into the first pipe 1. And then the first pipeline 1 and the second pipeline 2 are disassembled, the second pipeline 2 and the part between the second pipeline 2 are moved forwards along the tunneling direction, and a new slurry pipeline is connected between the first pipeline 1 and the second pipeline 2. Then, the cleaning component 32 is reset to the ball collecting and hitting device, and the switching pipeline 34 is switched to be connected between the second pipeline 2 and the third pipeline 4 through the driving component 31, so that one-time pipeline extension is completed.

In conclusion, the pipe connecting device provided by the application has the advantages that the mud does not need to be transported, the mechanism is simple, the economy is good, the operation and the maintenance are convenient, the cleaning component 32 is used for plugging the pipeline in the tunnel, the leakage of the mud can be effectively avoided, the mud pollution of the tunnel is reduced, and the labor intensity and the time cost of manual cleaning are reduced. And the cleaning component 32 is connected into or moved out of the second pipeline 2 by switching the ball collecting and hitting device and the switching pipeline 34 without switching structures such as a tee joint, and the damage of the cleaning component 32 in the moving process is avoided.

Specifically, the lift gate device 3 includes oppositely disposed guide rails, and two ends of the ball receiving and hitting pipeline 33 and the conversion pipeline 34 are respectively matched with the guide rails to move along the guide rails synchronously under the driving of the driving part 31. Through the arrangement of the guide rail, the ball receiving and playing pipeline 33 and the conversion pipeline 34 are supported on one hand, and the guide and limiting effects are realized on the movement of the ball receiving and playing pipeline and the conversion pipeline on the other hand.

Further, the lift gate device 3 includes the tube replacement sealing plate 35 that sets up relatively, and receive the both ends of ball pipeline 33 and conversion pipeline 34 respectively with tube replacement sealing plate 35 fixed connection, and tube replacement sealing plate 35 is used for respectively with second pipeline 2 and third pipeline 4 sealing connection. Namely, the ball collecting and playing pipeline 33 and the switching pipeline 34 are fixedly connected through the pipe replacing sealing flat plate 35, and the two pipelines are respectively matched with the guide rail. The tube replacement sealing flat plate 35 is respectively used for being in sealing connection with the second pipeline 2 and the third pipeline 4, communicating holes are formed in the two ends, corresponding to the conversion pipeline 34, of the tube replacement sealing flat plate 35, and the communicating holes are in labyrinth sealing design, so that sealing between the conversion pipeline 34 and the second pipeline 2 and the third pipeline 4 is achieved. The front end of the pipe-changing sealing flat plate 35 corresponding to the ball collecting and playing pipeline 33 is also provided with a communicating hole which is designed in a labyrinth sealing way so as to realize the sealing between the ball collecting and playing pipeline 33 and the second pipeline 2.

Further, the driving part 31 is a driving cylinder. The ball collecting and playing pipeline 33 and the switching pipeline 34 are driven to synchronously move by the extension and contraction of the driving oil cylinder. If necessary, the driving member 31 may also be a driving member 31 such as a motor and the like, and the driving member may drive the ball receiving and striking pipe 33 and the converting pipe 34 to move synchronously.

In addition to the above embodiments, the ball receiving and hitting duct 33 is provided with a ball receiving signal device 332 for detecting whether the cleaning member 32 reaches the ball receiving and hitting device. After a new slurry pipeline is connected between the first pipeline 1 and the second pipeline 2, the cleaning component 32 in the tunnel slurry pipeline is applied with pressure to enable the cleaning component 32 to be separated from the first pipeline 1, and the cleaning component 32 enters the ball collecting and hitting device through the newly connected slurry pipeline and the second pipeline 2 in sequence, and the pressure applied to the cleaning component 32 can be provided by a mud pump on the ground. Through the arrangement of the ball receiving signal device 332, when the cleaning component 32 is reset to the ball receiving and hitting state, the position of the cleaning component 32 can be accurately known, and the mud pump on the ground can be controlled to stop. Specifically, the ball receiving signal device 332 is a photoelectric sensor, which has a simple structure and high detection precision. Of course, the ball receiving signal device 332 is not limited to the photoelectric sensor, and other conventional proximity sensors may be used.

In the above embodiments, the ball passing stopper 11 is electrically connected to the high pressure water pump for controlling the high pressure water pump to be turned off when the cleaning unit 32 is detected to reach the inside of the first pipe 1. By electrically connecting the ball-passing limiting device 11 with the high-pressure water pump, the automatic quality control high-pressure water pump is convenient to close when the cleaning component 32 reaches the corresponding position in the first pipeline 1, namely, the high-pressure water action acting on the cleaning component 32 is removed, so that the cleaning component 32 stops moving. If necessary, the high-pressure water pump may be stopped by manual control when the ball-passing stopper 11 detects that the cleaning member 32 has reached the inside of the first pipe 1, and the ball-passing stopper 11 does not need to be electrically connected to the high-pressure water pump.

On the basis of the above embodiments, the ball serving chamber 5 is further included, which is communicated with the ball receiving and hitting pipeline 33 when the switching pipeline 34 is hermetically connected between the third pipeline 4 and the second pipeline 2, and the ball serving chamber 5 is connected with a sending component for pushing the cleaning component 32 into the ball receiving and hitting pipeline 33. That is, when the ball receiving and hitting pipe 33 is not connected to the second pipe 2, the end portion thereof, such as the rear end, is communicated with the service chamber 5, and the cleaning member 32 can be stored in the service chamber 5. When the take-over is needed, the cleaning component 32 is pushed into the ball receiving and playing pipeline 33 through the sending component, and the subsequent take-over operation is carried out. After a new slurry pipeline is connected into the first pipeline 1 and the second pipeline 2, the cleaning component 32 is reset into the ball receiving and hitting pipeline 33, the driving component 31 drives the conversion pipeline 34 to be connected between the second pipeline 2 and the third pipeline 4 in a sealing mode, the ball receiving and hitting pipeline 33 is reset to be communicated with the ball serving chamber 5, and then high-pressure water can be injected into the water injection hole 331 to push the cleaning component 32 to enter the ball serving chamber 5 backwards for storage. Through the arrangement of the pitching chamber 5, the cleaning component 32 can be better stored, the damage of the cleaning component is avoided, and the service life of the cleaning component is prolonged. If necessary, the cleaning member 32 may be stored in the ball receiving and hitting duct 33 without providing the service chamber 5. Under the condition that does not set up service room 5, when switching pipeline 34 sealing connection was between third pipeline 4 and second pipeline 2, the both ends of receiving the ball pipeline 33 of playing can be and seal, and the lid realizes sealing around can dismantling the connection if setting up to play the guard action. Specifically, the sending component is a high-pressure air pump. The cleaning component 32 is pushed into the ball receiving and serving pipeline by high-pressure gas.

In one embodiment, the pipe connector comprises the first pipeline 1, the second pipeline 2, the lifting gate device 3, the third pipeline 4 and the ball serving device. The lift gate device 3 comprises the flat sealing device, the driving part 31, the cleaning part 32, the ball receiving and hitting pipeline 33 and the conversion pipeline 34, the ball receiving and hitting pipeline 33 comprises a water injection hole 331 and a ball receiving signal device 332, the front end of the lift gate device 3 is connected with a first valve 41, and the rear end of the lift gate device 3 is connected with a second valve 21.

The process of adopting the pipe connector to carry out pipe connection is as follows:

step one, when the shield machine tunnels, the shield machine pipeline extension device is in a tunneling state, and the switching pipeline 34 is detachably connected between the third pipeline 4 and the second pipeline 2 in a sealing mode.

In the pipe connection state, the first valve 41 and the second valve 21 are closed first, so that the slurry in the slurry pipelines in front of and behind the lift gate device 3 is cut off.

And step three, the slurry pump pumps out the slurry in the slurry pipeline between the first valve 41 and the second valve 21.

And step four, after the mud in the first valve 41 and the second valve 21 is pumped out, operating the driving part 31 such as a lifting oil cylinder to drive the ball collecting and batting pipeline 33 in the lifting gate device 3 to move downwards, synchronously moving the conversion pipeline 34 downwards, stopping moving after the lifting oil cylinder reaches a limit position, and finishing connecting the ball collecting and batting pipeline 33 with the second pipeline 2.

Step five, opening a second valve 21 to enable a ball receiving and batting pipeline 33 to be communicated with a mud pipeline outside the shield machine, opening a water pump, injecting high-pressure water into a water injection port on the ball receiving and batting pipeline 33, separating a cleaning component 32 from the ball receiving and batting pipeline 33 under the action of the high-pressure water, moving in the mud pipeline along the opposite direction of tunneling, stopping pressurizing the water pump when the cleaning component 32 reaches the ball passing limiting device 11, and stopping moving the cleaning component 32; since the cleaning member 32 is an elastic body having a diameter slightly larger than the inner diameter of the pipe, it is possible to ensure that the slurry in the slurry pipe does not leak during the movement of the cleaning member 32 and after the movement to a predetermined position.

And sixthly, separating the slurry pipeline (namely the first pipeline 1) with the cleaning component 32 from the second pipeline 2, wherein the second pipeline 2 is specifically connected with a flexible mechanism 12, controlling the second pipeline 2 and the front part to move towards the tunneling direction, stopping moving after reaching a limit position, and then connecting a new slurry pipeline between the first pipeline 1 and the second pipeline 2.

Step seven, after the connection of the new slurry pipeline is finished, applying pressure to the cleaning component 32 in the tunnel slurry pipeline to enable the cleaning component 32 to be separated from the slurry pipeline, and enabling the cleaning component 32 to enter the ball collecting and hitting pipeline 33 through the newly connected slurry pipeline and the second pipeline 2 in sequence; the pressure applied to cleaning elements 32 in this step is provided by surface mud pumps.

Step eight, when the ball collecting signal device 332 detects that the cleaning component 32 returns to the ball collecting and hitting pipeline 33, the lifting oil cylinder is operated to drive the ball collecting and hitting pipeline 33 in the lifting gate device 3 to move upwards, the lifting oil cylinder stops moving after reaching the limit position, and the conversion pipeline 34 synchronously moves upwards until being communicated with the slurry pipeline.

And step nine, opening the first valve 41, and recovering the shield tunneling machine pipeline extension device to the tunneling state.

By adopting the technical scheme, the pipe connector for the slurry balance shield machine pipeline extension device has the advantages that the slurry does not need to be transported, the mechanism is simple, the economy is good, the operation and the maintenance are convenient, the cleaning component 32 is utilized to plug the slurry pipeline in the tunnel, the slurry leakage can be effectively avoided, the slurry pollution of the tunnel is reduced, and the labor intensity and the time cost of manual cleaning are reduced; in addition, the ball collecting and hitting pipeline 33 is utilized, damage to the cleaning component 32 in the moving process is avoided, the ball collecting and hitting pipeline has the remarkable advantages of being simple in mechanism, reliable in sealing, convenient to maintain and the like of sub-components, and the defects that valve balls are damaged, valve cavities are prone to being blocked, cost is high and the like frequently occurring in other pipeline extending devices are overcome.

Based on the pipe connector that provides in the above-mentioned embodiment, the utility model also provides a muddy water balance shield constructs quick-witted pipeline extension device, this muddy water balance shield constructs quick-witted pipeline extension device and includes arbitrary pipe connector in the above-mentioned embodiment. Because the pipe connector in the above embodiment is adopted in the slurry balance shield machine pipeline extension device, please refer to the above embodiment for the beneficial effects of the slurry balance shield machine pipeline extension device.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A pipe connector of a pipeline extension device of a slurry balance shield machine is characterized by comprising a first pipeline with a ball-passing limiting device, a second pipeline with a second valve, a lifting gate device and a third pipeline with a first valve, which are sequentially arranged along the tunneling direction, wherein the first pipeline is detachably and hermetically connected with the second pipeline;

the lift gate device includes drive assembly, has elastic cleaning element and the receipts ball pipeline of playing and the conversion pipeline that sets up side by side, drive assembly is used for driving receive the ball pipeline of playing with the conversion pipeline removes, in order to realize with conversion pipeline detachably sealing connection in the third pipeline with between the second pipeline and will receive ball pipeline detachably sealing connection in the switching of second pipeline front end, cleaning element's diameter is greater than the second pipeline with the internal diameter of third pipeline, just it is provided with the water filling hole that is used for connecting high pressure water pump on the ball pipeline to receive the ball pipeline of playing, in order to promote cleaning element by receive the ball pipeline of playing the ball warp the second pipeline removes to first pipeline, cross ball limiting device and be used for detecting whether cleaning element reachs in the first pipeline.

2. The pipe connecting device according to claim 1, wherein the lift gate device comprises oppositely arranged guide rails, and both ends of the ball receiving and playing pipeline and the conversion pipeline are respectively matched with the guide rails so as to synchronously move along the guide rails under the driving of the driving part.

3. The pipe connector of claim 2, wherein the lift gate device comprises pipe-replacing sealing plates which are oppositely arranged, two ends of the ball-collecting and ball-playing pipeline and the conversion pipeline are respectively and fixedly connected with the pipe-replacing sealing plates, and the pipe-replacing sealing plates are respectively and sealingly connected with the second pipeline and the third pipeline.

4. A pipe connector according to claim 3, wherein the drive member is a drive cylinder.

5. A pipe connector as claimed in any one of claims 1 to 4, wherein the ball receiving and hitting duct is provided with ball receiving signalling means for detecting whether the cleaning member has reached the ball receiving and hitting means.

6. A pipe connector as claimed in claim 5, wherein the ball receiving signal means is a photoelectric sensor.

7. A pipe connector as claimed in any one of claims 1 to 4, wherein the ball-passing limiting means is electrically connected to the high pressure water pump for controlling the high pressure water pump to shut down when the cleaning means is detected to have reached the first conduit.

8. The pipe connector of any one of claims 1-4, further comprising a service chamber in communication with the ball receiving and playing conduit when the transition conduit is sealingly connected between the third conduit and the second conduit, the service chamber having a delivery member connected thereto for pushing the cleaning member into the ball receiving and playing conduit.

9. The pipe connector of claim 8, wherein the routing member is a high pressure air pump.

10. A slurry balance shield tunneling machine pipeline extension device, comprising the pipe connector of any one of claims 1-9.

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