CN209810461U - Guniting device for repairing obstacle points in communication pipeline pipe hole - Google Patents

Abstract

The utility model discloses a communication pipeline downthehole obstacle point of pipe restores and uses whitewashing device, include: the gas storage tank is provided with a first gas inlet and a first gas outlet at two sides; the pulp storage barrel is connected with the air storage tank; an extrusion piston is arranged in the pulp storage barrel; the slurry storage chamber is provided with a slurry outlet and a slurry injection port; the air pressure chamber is provided with a second air inlet; the guniting mechanism is connected with the slurry storage barrel; the guniting mechanism comprises a rotary control cabin, a slurry-gas mixing pipe and a nozzle; a transmission rod in the rotary control cabin is connected with the slurry-gas mixing pipe; the slurry-gas mixing pipe is respectively connected with the slurry outlet and the first gas outlet; the spray head is connected with the top end of the slurry-gas mixing pipe. The aim of repairing the damaged pipe wall of the pipe hole blocking point under the condition of no excavation is fulfilled, so that the blocked communication pipeline can be safely used again; the device is ingenious in design, simple and compact in structure, low in manufacturing cost and easy to control, can be suitable for communication pipelines with various apertures, achieves omnibearing operation, and saves the traditional advancing mode of using a pipe penetrating device.

Description

Guniting device for repairing obstacle points in communication pipeline pipe hole

Technical Field

The utility model relates to a communication pipeline repair equipment technical field especially relates to a communication pipeline downthehole obstacle point of pipe restores and uses whitewashing device.

Background

At present, cement pipelines or plastic pipelines are adopted as communication pipelines of a plurality of urban communication optical cable line engineering, the diameter of a pipeline hole is generally 90mm, and the length between two manholes or hand holes is generally not more than 150 meters. In the process of building the communication pipeline, soil possibly enters the pipeline at the joint of the cement pipeline and the plastic pipeline due to poor sealing, so that a pipe hole is blocked and the communication pipeline cannot be used; the cement pipeline or the plastic pipeline at a position between the two manholes or the handholes can be pressed through by hard objects, so that soil flows into the pipeline holes to block the pipe holes and cannot be used; the cement pipeline and the plastic pipeline can cause water with slurry to flow into the pipeline under the condition that a pipe orifice in a manhole or a handhole is not tightly blocked due to the unsatisfactory gradient coefficient, and the water in the slurry is evaporated after a long time, and the pipe orifice is blocked by the residual soil.

In the communication pipeline optical cable engineering, the pipeline holes are not communicated under the various conditions. For repairing communication pipe holes, the covering soil on the pipeline is dug for a long time and then is processed. The blocking position of some communication pipelines can not be excavated due to various reasons, so that pipe holes are scrapped and can not be normally used, precious communication pipeline resources in urban areas are wasted, and huge loss is caused to communication operators.

The communication pipeline pipe hole plugged or deformed by soil is processed by other methods, the pipe hole wall is possibly damaged, the damaged pipe hole wall is not processed in time, and after the time is long, the pipe hole is possibly blocked by soil, so that the pipe hole is not beneficial to reuse. The problem that communication pipeline engineering constructors are troubled has been that how to repair damaged pipeline walls in narrow environments under the trenchless condition.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model also aims to provide a guniting device for repairing the obstacle point in the pipe hole of the communication pipeline, which realizes the aim of repairing the damaged pipe wall of the blocking point of the pipe hole under the condition of no excavation, so that the blocked communication pipeline can be safely used again; the device has the advantages of ingenious design, simple and compact structure, low manufacturing cost and easy control, can be adapted to communication pipelines with various apertures, realizes omnibearing operation and saves the traditional advancing mode of using the pipe penetrating device.

In order to achieve the above and other objects, the present invention adopts the following technical solutions:

the utility model provides a communication pipe intraductal obstacle point of pipe restores and uses whitewashing device, includes:

the gas storage tank is provided with a first gas inlet and a first gas outlet which are communicated with the inside of the gas storage tank on two sides respectively;

the rear end of the pulp storage barrel is connected to the front end of the air storage tank; an extrusion piston is arranged in the pulp storage barrel, the outer edge of the extrusion piston is abutted against the inner wall of the pulp storage barrel and can slide along the inner wall of the pulp storage barrel; the extrusion piston divides the interior of the pulp storage barrel into a pulp storage chamber and an air pressure chamber; the end surface of the slurry storage chamber is provided with a slurry outlet, and the side wall of the slurry storage chamber is provided with a grouting port; a second air inlet is formed in the end face of the air pressure chamber and connected to the first air outlet through a pipeline;

the rear end of the guniting mechanism is connected with the front end of the grout storage barrel; the guniting mechanism comprises a rotary control cabin, a slurry-gas mixing pipe and a spray head; a rotatable transmission rod arranged in the rotary control cabin penetrates out of the rotary control cabin from the front end of the rotary control cabin and is connected with the slurry-gas mixing pipe so as to drive the slurry-gas mixing pipe to rotate; the bottom end of the slurry-gas mixing pipe is connected with the slurry outlet through a slurry conveying pipe; an air inlet connected with the first air outlet through an air conveying pipe is formed in the side wall of the slurry-air mixing pipe, which is close to the bottom end; the spray head is connected to the top end of the slurry-gas mixing pipe.

Preferably, the shotcrete device for repairing a trouble point in a pipe hole of a communication pipe further includes:

a compression cylinder including a cylinder body, a compression piston, and an electromagnetic coil; the cylinder body is arranged into a hollow closed cavity; the compression piston is arranged in the cylinder body in a mode that the outer edge of the compression piston is abutted against the inner wall of the cylinder body, and a pair of air inlet and outlet ports are respectively arranged on two end faces of the cylinder body; the front end of the cylinder body is connected to the rear end of the gas storage tank, gas outlets on two end faces of the cylinder body are mutually connected, and the cylinder body is connected to the first gas inlet through a pipeline; the electromagnetic coil is wound outside the cylinder body, and the outer edge of the compression piston which is made of iron cylindrical hard magnet is sleeved with a rubber layer to be combined, so that the electromagnetic force generated when the electromagnetic coil is electrified drives the compression piston to do bidirectional reciprocating motion in the cylinder body, and further compressed air is generated.

Preferably, in the guniting device for repairing the obstacle point in the pipe hole of the communication pipeline, air port baffles are respectively arranged on the inner side of the air inlet and the outer side of the air outlet which are arranged on the two end faces of the cylinder body, a U-shaped spring wire is arranged on one side, far away from the air inlet or the air outlet, of each air port baffle, and the U-shaped spring wire generates extrusion force on the air port baffles under the action of no external force so as to seal the corresponding air inlet or the corresponding air outlet and open the corresponding air inlet or the corresponding air outlet when the external force is applied.

Preferably, the shotcrete device for repairing a trouble point in a pipe hole of a communication pipe further includes:

the monitoring probe is arranged at one end of the transmission rod connected with the slurry-gas mixing pipe; the surface of the lens of the monitoring probe is provided with a cleaning brush, and one end of the cleaning brush is connected with the surface of the lens in a mode of rotating along the surface of the lens.

Preferably, the shotcrete device for repairing a trouble point in a pipe hole of a communication pipe further includes:

the front end of the control circuit cabin is connected with the rear end of the cylinder body; the control circuit cabin is internally provided with a control circuit board, the rear end of the control circuit cabin is provided with a control cable, one end of the control cable extends into the control circuit cabin and is connected with the control circuit board, and the other end of the control cable is connected to an operation console.

Preferably, the shotcrete device for repairing a trouble point in a pipe hole of a communication pipe further includes:

the electromagnetic roller is electrically connected with the control circuit board; grooves for accommodating the electromagnetic rollers are respectively arranged on the top surfaces and the bottom surfaces of the control circuit cabin, the pulp storage barrel and the air storage tank; a supporting rod is arranged in the groove, the bottom end of the supporting rod is connected with a U-shaped supporting frame, and two end parts of the supporting frame are respectively connected to the centers of two sides of the electromagnetic roller; a pressure storage chamber is further arranged between the support rod and the groove and is connected to the first air outlet through an air conveying pipe, an air inlet electromagnetic valve is arranged at the connecting end of the pressure storage chamber and the air conveying pipe, an electromagnetic pressure release valve is arranged at the end far away from the connecting end with the air conveying pipe, and the air inlet electromagnetic valve and the electromagnetic pressure release valve are respectively connected to the control circuit board; an air pressure piston is further arranged between the pressure storage chamber and the supporting rod, a pressure sensor is further arranged at the connecting end of the supporting frame and the electromagnetic roller, the pressure sensor is connected with the control circuit board, and the control circuit board controls the inflation quantity of the pressure storage chamber according to the pressure value sensed by the pressure sensor so as to control the height of the electromagnetic roller protruding out of the groove.

Preferably, in the guniting device for repairing the obstacle point in the pipe hole of the communication pipeline, a rotating motor and a gear transmission set are arranged in the rotating control cabin; the gear transmission set comprises a driving gear with a smaller diameter and a driven gear with a larger diameter; the center of the driving gear is connected to an output shaft of the rotating motor, the driven gear is meshed with the driving gear, and the transmission rod penetrates through the center of the driven gear to rotate along with the rotation of the driven gear.

Preferably, in the guniting device for repairing the obstacle point in the pipe hole of the communication pipe, a bent pipe is arranged on the slurry-gas mixing pipe between the transmission rod and the gas pipe.

Preferably, in the guniting device for repairing an obstacle point in a pipe hole of the communication pipeline, a check valve is arranged in the grout conveying pipe.

Preferably, in the guniting device for repairing the obstacle point in the pipe hole of the communication pipeline, the gas storage tank, the grout storage barrel and the cylinder body are respectively provided with a pressure release valve connected with the circuit control board.

The utility model discloses at least, include following beneficial effect:

the utility model discloses an among the communication pipeline downthehole obstacle point restoration of pipe is with whitewashing device, through the gas holder, connect the setting in order of storage bucket and whitewashing mechanism, make after getting into the downthehole obstacle point of pipeline, the gas holder is aerifyd to the storage bucket, the mortar that the extrusion piston will place in the storage bucket is by the shower nozzle blowout of whitewashing mechanism, and thick liquid gas hybrid tube can rotate, thereby realized restoring the all-round whitewashing of the downthehole damaged pipeline wall of communication pipeline, just can carry out prosthetic trouble to the damaged pipe wall of pipe orifice choke point after having avoided excavating.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a guniting device for repairing an obstacle point in a pipe hole of a communication pipe, provided by the utility model;

fig. 2 is a schematic structural diagram of the gas storage tank provided by the present invention;

fig. 3 is a schematic structural view of the pulp storage barrel provided by the present invention;

fig. 4 is a schematic structural diagram of a guniting mechanism provided by the present invention;

fig. 5 is a schematic structural view of a compression cylinder provided by the present invention;

fig. 6 is a schematic structural diagram of a control circuit compartment provided by the present invention;

fig. 7 is a schematic structural diagram of the electromagnetic roller according to the present invention.

Detailed Description

The present invention is described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.

As shown in fig. 1 to 4, a guniting device for repairing an obstacle point in a pipe hole of a communication pipe, includes: the air container 100 has a first air inlet 110 and a first air outlet 120 formed at both sides thereof and penetrating into the air container 100.

A pulp storage barrel 200, the rear end of which is connected to the front end of the air storage tank 100; an extrusion piston 210 with an outer edge abutting against the inner wall of the pulp storage barrel 200 and capable of sliding along the inner wall of the pulp storage barrel 200 is arranged in the pulp storage barrel 200; the extrusion piston 210 divides the inside of the pulp storage barrel 200 into a pulp storage chamber 220 and an air pressure chamber 230; a slurry outlet 221 is formed in the end surface of the slurry storage chamber 220, and a grouting port 222 is formed in the side wall of the slurry storage chamber 220; a second air inlet 231 is formed on an end surface of the air pressure chamber 230, and the second air inlet 231 is connected to the first air outlet 120 through a pipeline.

The rear end of the guniting mechanism is connected with the front end of the grout storing barrel 200; the guniting mechanism comprises a rotary control cabin 300, a slurry-gas mixing pipe 400 and a spray head 500; a rotatable transmission rod 310 arranged in the rotary control cabin 300 penetrates out of the rotary control cabin 300 from the front end of the rotary control cabin 300 and is connected with the slurry-gas mixing pipe 400 so as to drive the slurry-gas mixing pipe 400 to rotate; the bottom end of the slurry-gas mixing pipe 400 is connected with the slurry outlet 221 through a slurry conveying pipe 600; the side wall of the slurry-gas mixing pipe 400 close to the bottom end is provided with a gas inlet connected with the first gas outlet 120 through a gas conveying pipe 700; the nozzle 500 is connected to the top end of the slurry-gas mixing pipe 400.

In the above scheme, the use method of the guniting device for repairing the obstacle point in the pipe hole of the communication pipe comprises the following steps: this device is assembled by the constructor, fills up cement mortar in the storage bucket, puts into in the communication pipe orifice, then when reaching damaged pipe wall position, the constructor can control the transfer line rotatory, and the gas holder is aerifyd to the storage bucket, and when atmospheric pressure reached a definite value, the solenoid valve on gas-supply pipe and the defeated thick liquid pipe was opened, realizes promptly carrying out the operation of spouting in the pipe orifice, at last after the restoration of spouting, it can to make the device withdraw from in the pipe orifice.

Through the gas holder, connect the setting in order of storage bucket and whitewashing mechanism, make behind the downthehole obstacle point of entering pipeline pipe, the gas holder is aerifyd to storage bucket, the mortar that the extrusion piston will place in the storage bucket is spout by whitewashing mechanism's shower nozzle, and the thick liquid gas mixing tube can rotate, thereby realized that the all-round whitewashing of the downthehole damaged pipeline wall of communication pipeline is restoreed, just can carry out prosthetic trouble to the damaged pipe wall of pipe hole obstruction point after having avoided excavating ground.

As shown in fig. 5, in a preferred embodiment, the method further includes: a compression cylinder 800 including a cylinder block 810, a compression piston 820, and an electromagnetic coil 830; the cylinder body 810 is arranged as a hollow closed cavity; the compression piston 820 is disposed inside the cylinder 810 in a manner that an outer edge thereof is abutted against an inner wall of the cylinder 810, and a pair of air inlet/outlet ports 811 are respectively disposed on two end surfaces of the cylinder 810; the front end of the cylinder 810 is connected to the rear end of the air storage tank 100, and air outlets on two end faces of the cylinder 810 are connected to each other and connected to the first air inlet 110 through a pipeline; the electromagnetic coil 830 is wound around the cylinder 810, and the compression piston 820 is made of an iron cylindrical hard magnet, and a rubber layer is sleeved on the outer edge of the iron cylindrical hard magnet, so that the electromagnetic force generated when the electromagnetic coil 830 is energized drives the compression piston 820 to perform bidirectional reciprocating motion in the cylinder 810, thereby generating compressed air.

In the above scheme, the compression cylinder is a part for generating compressed air, is cylindrical, is made of hard non-metal materials, the middle of two sealed ends is divided into a left part and a right part by a compression piston, the middle of the compression piston is iron cylindrical hard iron, the outer diameter of the iron cylindrical hard iron is smaller than the inner diameter of the compression cylinder, the edge of the cylindrical magnet is sleeved with a rubber layer, the diameter of the compression piston sleeved with an insulating layer is slightly larger than the inner diameter of the cylinder, the compression piston can be plugged into the compression cylinder, the outer diameter of the compression cylinder is 20mm smaller than the inner diameter of a pipe hole of a communication pipeline, the compression cylinder is longitudinally longer, a plurality of turns of electromagnetic coils are wound outside the compression cylinder, a coil protective cover is sleeved outside the electromagnetic coils, the electromagnetic coils are connected to a control circuit, under the control of the control circuit, the device has the advantages that the traditional driving mode of the motor, the gear and the transmission rod is abandoned, the simple structure realizes the bidirectional reciprocating type work of the air pressure piston in the compression cylinder in a narrow environment, the size of the device is reduced, and the efficiency of manufacturing compressed air by the compression cylinder is improved.

In a preferred scheme, the inner side of the air inlet and the outer side of the air outlet, which are arranged on the two end faces of the cylinder body 810, are respectively provided with an air port baffle, one side, which is far away from the air inlet or the air outlet, of the air port baffle is provided with a U-shaped spring wire, the U-shaped spring wire generates extrusion force on the air port baffle under the action of no external force so as to seal the corresponding air inlet or the corresponding air outlet, and the corresponding air inlet or the corresponding air outlet is opened under the action of the external force.

In the scheme, the inner side of the air inlet and the outer side of the air outlet are respectively provided with an air port baffle plate with a sealing rubber structure at the periphery, one side of the baffle plate, which is far away from the air cylinder port, is provided with a small-elasticity U-shaped spring wire, the U-shaped spring wire presses the baffle plate, the air port can be in a closed state under a normal condition and is opened when air enters or exits respectively, and the air port can only complete the air inlet or air outlet function and is opened or closed when needed; after the air outlets at the two ends are connected together, the air outlets are connected to an air storage tank through air conveying pipes, and the outer sides of the two ends of the air cylinder are respectively provided with a flange plate, so that the compression air cylinder can be connected with other equipment.

In a preferred embodiment, the method further comprises: a monitor probe 900 disposed at one end of the transmission rod 310 connected to the slurry-gas mixing pipe 400; the lens surface of the monitoring probe 900 is provided with a cleaning brush, and one end of the cleaning brush is connected with the lens surface in a manner of rotating along the lens surface.

In the scheme, the monitoring probe is arranged on the transmission rod and rotates along with the transmission rod, the cleaning brush is arranged on the surface of the lens of the monitoring probe, the cleaning brush can rotate under the control of the control circuit to remove sundries in front of the lens, the monitoring probe is powered by an external power supply control cable, a video signal of the monitoring probe is transmitted to a display of a constructor control platform through the control cable, and the constructor observes the position and the condition of a grout spraying point to be reinforced through the display and controls the device to work.

As shown in fig. 6, in a preferred embodiment, the method further includes: a control circuit compartment 1000, the front end of which is connected to the rear end of the cylinder 810; a control circuit board 1010 is arranged in the control circuit cabin 1000, a control cable 1020 is arranged at the rear end of the control circuit cabin 1000, one end of the control cable 1020 extends into the control circuit cabin 1000 and is connected with the control circuit board 1010, and the other end of the control cable is connected to an operation console.

In the scheme, various control lines led out from the control circuit board of the control circuit cabin are led to the electromagnetic coil, the electromagnetic roller, the pressure release valves, the electromagnetic valve and the contact switch through the longitudinal threading pipe and the transverse threading pipe, and constructors can realize indirect or direct control on corresponding devices through controlling the control circuit. Gas pipes are arranged between the cylinder and the gas storage tank, between the gas storage tank and the pulp storage barrel, between the gas storage tank and the pulp-gas mixing pipe and between the gas storage tank and the roller position control system; and a slurry conveying pipe is arranged between the slurry storage barrel and the slurry-gas mixing pipe, and constructors receive signals through the control platform and control the devices.

As shown in fig. 7, in a preferred embodiment, the method further includes: an electromagnetic roller 1100 electrically connected to the control circuit board 1010; grooves 1110 for accommodating the electromagnetic rollers 1100 are respectively formed on the top and bottom surfaces of the control circuit compartment 1000, the slurry storage barrel 200 and the air storage tank 100; a support rod 1120 is arranged in the groove 1110, the bottom end of the support rod 1120 is connected with a U-shaped support frame 1130, and two end parts of the support frame 1130 are respectively connected to the centers of two sides of the electromagnetic roller 1100; a pressure storage chamber 1180 is further arranged between the support rod 1120 and the groove 1110, the pressure storage chamber 1180 is connected to the first air outlet 120 through an air conveying pipe 700, an air inlet electromagnetic valve 1140 is arranged at the connecting end of the pressure storage chamber 1180 and the air conveying pipe 700, an electromagnetic pressure release valve 1150 is arranged at the end far away from the connecting end of the air conveying pipe 700, and the air inlet electromagnetic valve 1140 and the electromagnetic pressure release valve 1150 are respectively connected to the control circuit board 1010; an air pressure piston 1160 is further arranged between the pressure storage chamber 1180 and the supporting rod 1120, a pressure sensor 1170 is further arranged at the connecting end of the supporting frame 1130 and the electromagnetic roller 1100, the pressure sensor 1170 is connected with the control circuit board 1010, and the control circuit board 1010 controls the inflation amount of the pressure storage chamber 1180 according to the pressure value sensed by the pressure sensor 1170 so as to control the height of the electromagnetic roller 1100 protruding out of the groove 1110.

In the scheme, the control circuit board can control the distance between the roller and the surface of the device, and the position of the roller is adjusted in non-nominal pipe holes of 100mm, 110mm and the like, so that the electromagnetic roller can be ensured to better drive the device to move in the pipe hole of the communication pipeline. The supporting rod is provided with a pressure sensor, when the pressure born by the pressure sensor is smaller than a standard value, the pressure sensor opens the electromagnetic valve of the electromagnetic roller through the circuit control panel, compressed air in the air storage tank is conveyed to an air pressure chamber for controlling the position of the roller through an air conveying pipe, the compressed air pushes an air pressure piston to move downwards, the supporting rod controls the supporting frame to drive the roller to move downwards, the pressure born by the pressure sensor is increased, and when a set value is reached, the pressure sensor closes the electromagnetic valve of the electromagnetic roller through the circuit control panel; when the electromagnetic roller at the extension position needs to be retracted, a constructor opens the electromagnetic pressure release valve through the control of the control circuit board to release compressed air in the air pressure chamber, the air pressure piston can move upwards under the action of external gravity and pressure, and the electromagnetic roller can retract. The circuit for controlling the electromagnetic roller consists of a booster circuit, an electrolytic capacitor, an electromagnetic coil connecting circuit, an electromagnetic coil current direction control circuit and the like. When the device needs to move forwards, a constructor controls the boosting circuit to quickly charge the electrolytic capacitor through the control line, the capacitor discharges to the electromagnetic coil, and the magnet on the periphery of the electromagnetic coil can drive the outer sheath of the movable roller to start rotating so as to drive the device to move forwards in the communication pipeline; when the device needs to move backwards, a constructor controls a current direction control circuit of the electromagnetic coil to provide reverse current for the electromagnetic coil through a control line, and the movable roller starts to rotate reversely, so that the device can be driven to move backwards in the communication pipeline; when the device is required to be static, constructors control the electromagnetic roller control circuit through the control line to expand the position of the roller, and the roller can support the device on the inner wall of the pipe hole of the communication pipeline. At this time, the electromagnetic roller control circuit can be closed, and as long as the electromagnetic pressure relief valve in the pressure storage chamber above the supporting rod is not opened, the supporting state can be continued all the time.

In a preferred scheme, a rotating motor 320 and a gear transmission set are arranged in the rotating control cabin 300; the gear transmission set comprises a driving gear 330 with a smaller diameter and a driven gear 340 with a larger diameter; the center of the driving gear 330 is connected to an output shaft of the rotating motor 320, the driven gear 340 is engaged with the driving gear 330, and the driving rod 310 is disposed through the center of the driven gear 340 to rotate with the rotation of the driven gear 340.

In the scheme, the rotating motor is connected with a driving gear, a driven gear is arranged on a transmission rod, the diameter of the driving gear is far smaller than that of the driven gear, the driving gear is meshed with the driven gear, and the driven gear is a speed regulating gear; one end and the middle proper position of the transmission rod are respectively fixed on the proper position of the inner wall of the rotating cabin through a rotating bearing and a bearing bracket; the other end of the transmission rod extends out of the rotating cabin through a hole in one end of the rotating cabin and is fixedly connected with the slurry-gas mixing pipe, and constructors can control the transmission rod to rotate by controlling the motor to rotate.

In a preferable scheme, a bent pipe 410 is arranged on the slurry-gas mixing pipe 400 between the transmission rod 310 and the gas pipe 700.

In the above scheme, the arrangement of the bending pipe can bend the slurry-gas mixing pipe within the range of 360 degrees, so that the slurry-gas mixing pipe rotates along with the transmission rod.

In a preferred scheme, a check valve is arranged in the slurry conveying pipe 600.

In the above scheme, the arrangement of the check valve can prevent the high-pressure air in the slurry-spraying mechanism slurry-gas mixing pipe from reversely pressing the cement mortar back into the slurry storage barrel when the air pressure in the slurry storage barrel is lower.

In a preferred scheme, the air storage tank 100, the pulp storage barrel 200 and the cylinder 810 are respectively provided with a pressure release valve 1200 connected with the circuit control board 1010.

In the above scheme, through the setting of relief valve for when gas holder or cylinder body internal pressure reached certain degree, the relief valve can let out the too high pressure in gas holder or the cylinder body, and send shut down signal to control circuit board, make the compression pipe stop work, thereby guarantee the safe in utilization of device.

Examples

Communication pipeline downthehole obstacle point of pipe restore and use whitewashing device constitute through the ring flange between each part by parts such as gas holder, storage thick liquid bucket, whitewashing mechanism, compression cylinder, monitor, control circuit cabin, all kinds of pipelines and tail end cable.

Compression cylinder

The compression cylinder comprises a cylinder body, a compression piston, an electromagnetic coil, a coil protective cover, an air inlet, an air outlet, a pressure release valve, a flange plate and the like. The cylinder body is a part for generating compressed air, is cylindrical, is made of hard nonmetal materials, has two sealed ends, and is divided into a left part and a right part by a compression piston, wherein the left part and the right part are respectively called as a compression cylinder 1 and a compression cylinder 2; the middle of the compression piston is an iron cylindrical hard magnet, the outer diameter of the iron cylindrical hard magnet is smaller than the inner diameter of the compression cylinder, a rubber layer is sleeved outside the edge of the cylindrical magnet, and the diameter of the compression piston sleeved with the insulating layer is slightly larger than the inner diameter of the cylinder and can be plugged into the cylinder body; the outer diameter of the cylinder body is 20mm smaller than the inner diameter of the pipe hole of the communication pipeline, the cylinder body is longitudinally longer, a plurality of turns of electromagnetic coils are wound outside the cylinder body, a coil protective cover is sleeved outside the electromagnetic coils, the electromagnetic coils are connected to a control circuit, and under the control of the control circuit, electromagnetic forces in different directions can be generated, so that the compression piston can perform bidirectional reciprocating motion in the cylinder body to generate compressed air.

The two ends of the cylinder body are respectively provided with an air inlet A, an air inlet B, an air outlet A and an air outlet B, the inner side of the air inlet and the outer side of the air outlet are respectively provided with an air port baffle plate with a sealing rubber structure at the periphery, one side of the baffle plate, which is far away from the cylinder port, is provided with a small-elasticity U-shaped spring wire, the U-shaped spring wire presses the baffle plate, the air port can be in a closed state under a normal condition and is opened when air enters or exits respectively, and the air port can only complete the air inlet or outlet function and is opened or closed when; the air outlet A and the air outlet B are connected together and then connected to an air storage tank through an air conveying pipe. The two sides of the cylinder body are respectively provided with a pressure relief valve, when the air pressure in the cylinder body is overlarge, the pressure relief valves are opened to relieve the redundant pressure in the cylinder body, and a signal for stopping the cylinder body is sent to the control circuit to stop the cylinder body. The outer sides of the two ends of the cylinder body are respectively provided with a flange plate, so that the cylinder body can be connected with other equipment.

(II) gas storage tank

The gas storage tank is provided with a gas inlet, a gas outlet, a pressure release valve, rollers and the like. The air storage tank is a sealed tank body, the outer diameter of the air storage tank is 10mm smaller than the inner diameter of the communication pipe hole, and two ends of the air storage tank are respectively connected with the compression cylinder and the pulp storage barrel through flange plates; the longitudinal length of the air storage tank is proper so as to ensure that the air storage tank has enough pressure; one end of the tank body is provided with a C air inlet which is connected to an air outlet of the cylinder body through an air delivery pipe; the other end of the air storage tank is provided with a gas outlet C, and the gas outlet C is respectively connected to a nozzle, a gas inlet D of the extrusion device at one end of the pulp storage barrel and three gas inlets of the roller gas pressure system through gas transmission pipes; a pressure release valve is installed at one end of the air storage tank, when the pressure in the air storage tank reaches a certain degree, the pressure release valve releases the overhigh pressure in the air storage tank, and sends a stop signal to the control circuit to stop the compression pipe.

The same cross section of lateral wall of gas holder sets up the recess, the recess is located the top and the bottom of gas holder, is equipped with the electromagnetism gyro wheel in the recess.

(III) slurry storage barrel

The slurry storage barrel is provided with a slurry injection port, an extrusion piston, a pressure chamber, a pressure release valve, a slurry outlet, an air inlet, a flange plate, an electromagnetic roller and the like. One side of the slurry storage system is provided with a slurry storage barrel for storing cement mortar, the upper part of one end of the slurry storage barrel is provided with a rotary cover sealing structure which is used for a grouting opening for injecting the cement mortar, and the cement mortar can be injected into the slurry storage barrel through the grouting opening; the other end of the pulp storage barrel is provided with an extrusion device which comprises a pneumatic chamber, a pressure release valve, an air inlet and the like; the pulp storage barrel and the air pressure chamber are separated by the extrusion piston.

When the constructor injects the stirred special cement mortar into the mortar storage barrel, the pressure release valve is opened firstly to exhaust the air in the air pressure chamber; after cement mortar is injected into the mortar storage barrel, the sealing cover of the grouting opening is screwed tightly and sealed. The air pressure chamber is of a closed structure, the outer end of the air pressure chamber is provided with a D air inlet, a pressure release valve and a group of roller mounting grooves, the D air inlet is connected to the air outlet of the air storage tank through an air conveying pipe, and when the air pressure in the air pressure chamber reaches a certain degree, the air pressure pushes an extrusion piston to press cement mortar in the mortar storage barrel into the mortar conveying pipe through a mortar outlet. The cement mortar is pressed into the mortar conveying pipe from the mortar outlet, the mortar conveying pipe outside the mortar outlet is internally provided with a backflow prevention flap, and the backflow prevention flap can prevent the high-pressure air in the mortar-gas mixing pipe of the mortar spraying system from reversely pressing the cement mortar back to the mortar storage barrel when the air pressure in the mortar storage barrel is lower.

And flange plates are arranged at two ends of the slurry storage barrel and are used for connecting the slurry storage barrel with the slurry spraying mechanism and the gas storage tank. The electromagnetic roller is arranged in a groove on one side of the air pressure chamber close to the air inlet, and the arrangement mode of the roller groove is the same as that of the groove of the air storage tank.

(IV) guniting mechanism

The guniting mechanism is positioned at the front end of the grout storage barrel and comprises a rotary control cabin, a rotary transmission rod, a grout conveying pipe, a gas conveying pipe, a contact switch, a gas conveying pipe electromagnetic valve, a grout and gas mixing pipe, a bending pipe, a spray head, a flange plate and the like. One end of the rotary control cabin is connected with the slurry storage barrel through a flange plate, and the other end of the rotary control cabin is connected with the slurry-gas mixing pipe through a rotary transmission rod, so that the rotary control cabin rotates along the cross section direction of the communication pipe hole.

The rotary control cabin is internally provided with a rotary motor and a rotary gear set. The rotating motor in the rotating control cabin is controlled by a constructor to work remotely; the rotating motor is connected with a gear A, a gear B is arranged on the rotating transmission rod, the diameter of the gear A is far smaller than that of the gear B, the gear A is meshed with the gear B, and the gear B is a speed regulating gear; one end and the middle proper position of the rotating transmission rod are respectively fixed on the proper position of the inner wall of the rotating cabin through a rotating bearing and a bearing bracket; the other end of the rotary transmission rod extends out of the rotary cabin through a hole at one end of the rotary cabin and is fixedly connected with the gas-slurry mixing pipe. Constructors can control the rotation of the rotary transmission rod by controlling the rotation of the motor.

Cement mortar in the mortar storage barrel flows into the mortar conveying pipe under the extrusion of compressed air in the air pressure chamber; the joint of the slurry conveying pipe and the compressed air conveying pipe is provided with a contact switch, the joint of the gas conveying pipe and the slurry conveying pipe is provided with a gas conveying pipe electromagnetic valve, when cement mortar flows to the contact switch, and the air pressure in the gas conveying pipe reaches a set threshold value, the contact switch is extruded and opened, and sends a signal to a control circuit, the control circuit can control the gas conveying pipe electromagnetic valve to be opened, the compressed air flows into the slurry-gas mixing pipe to be mixed with the cement mortar and is sprayed out by a spray head, wherein the threshold value of the pressure value reached by the gas conveying pipe is set according to the actual condition, so that the problem that the mortar flows out of the spray head due to the fact that the compressed air cannot spray the mortar out of; meanwhile, the problem that the mortar cannot be intensively sprayed to the position needing to be sprayed due to overhigh air pressure is solved. The lower part of the slurry-gas mixing pipe is connected with a slurry conveying pipe, the middle part of the slurry-gas mixing pipe is provided with a gas conveying pipe opening, and the upper part of the slurry-gas mixing pipe is connected with a spray head through a bending pipe; the size of the nozzle of the spray head can ensure that cement mortar can be sprayed out; the slurry-gas mixing pipe is fixed on the rotary transmission rod, the lower part of the fixed point is provided with a bending pipe, and the bending pipe can bend the slurry-gas mixing pipe within the range of 360 degrees, so that the slurry-gas mixing pipe rotates along with the rotary transmission rod.

(V) monitoring probe

The monitoring probe is arranged on the rotary transmission rod and rotates along with the rotary transmission rod. The surface of the lens of the monitoring probe is provided with a cleaning brush which can rotate under the control of the control circuit to remove sundries in front of the lens. The monitoring probe is powered by an external power supply control cable, a video signal of the monitoring probe is transmitted to a display of a constructor control platform through the control cable, and constructors observe the position and the condition of a grouting point to be reinforced through the display to control the device to work.

(VI) electromagnetic roller

The electromagnetic roller wheels are arranged at the positions of the control circuit cabin, the air storage tank, the pulp storage barrel and the like, grooves for mounting the electromagnetic roller wheels are respectively arranged at proper positions on the outer walls of the devices, and the grooves are isolated from the inside of the cabin (tank) body. The electromagnetic roller is arranged in each groove and consists of an electromagnetic roller body, a roller fixing shaft, a roller supporting device, a roller position control device, a gas pipe, a roller electromagnetic valve, a roller control circuit and a pressure sensor; three air inlets of the roller position control device are respectively connected to nearby air pipes through roller electromagnetic valves; a roller electromagnetic valve and an electromagnetic pressure relief valve of the roller position control device are respectively connected to an electromagnetic roller control circuit; the height of the wheel body edge of the electromagnetic roller body extending out of the grooves in the outer side wall of each cabin (tank) is automatically controlled by a pressure sensor of the electromagnetic roller through an electromagnetic roller control circuit, and can also be remotely controlled by construction personnel. The outer sheath is wrapped outside the electromagnetic roller body and made of soft materials, the longitudinal section direction of the surface of the outer sheath is arc-shaped, the curvature radius of the arc-shaped outer sheath is the same as that of the pipe hole of the communication pipeline, and friction force between the roller body and the inner wall of the pipe hole of the communication pipeline can be increased. The movement of the electromagnetic roller body is remotely controlled by constructors through an electromagnetic roller control circuit and a control line, the electromagnetic roller can carry the device to longitudinally move back and forth along the pipe hole of the communication pipeline, and the device can also be supported and fixed in the pipe hole of the communication pipeline.

(VII) control circuit cabin

One end of the control circuit cabin is connected with the compression cylinder through a flange plate, and the other end of the control circuit cabin is connected with a control cable with a reinforced core. One end of the control cable is connected to a constructor console outside the pipe hole of the communication pipeline, and the other end of the control cable is connected to a terminal board of the control circuit cabin. A compression cylinder control circuit board, a gas storage tank and slurry storage barrel control circuit board, an electromagnetic roller control circuit board, a terminal board, a traction rope fixing device and an electromagnetic roller are arranged in the control circuit cabin. The control circuit cabin is of a closed structure and is powered by a power supply outside the communication pipe hole. The electromagnetic roller is arranged in a groove of the circuit control cabin, and the installation mode and the control mode are the same as those of the air storage tank.

The main functions of the control circuit compartment are:

(1) the current direction of an electromagnetic coil outside the cylinder body can be controlled, electromagnetic force is provided for a ferromagnetic piston in the cylinder body, and the cylinder piston can do cyclic reciprocating motion in the cylinder body;

(2) the air pressure signals sent by pressure release valves at the positions of the compression cylinder, the air storage tank, the pulp storage tank air pressure chamber and the like can be received, whether the compression cylinder works or not is controlled, and the air pressure in the air pressure container is prevented from being overhigh;

(3) the device can receive signals sent by a slurry conveying pipe contact switch and a gas conveying pipe electromagnetic valve and control the gas conveying pipe electromagnetic valve to be opened or closed;

(4) the electromagnetic roller can be controlled to move forwards or backwards, and the position of the electromagnetic roller can be controlled to move, brake and fixedly control the electromagnetic roller.

The composition and the working principle of each circuit system in the control circuit cabin are as follows:

1. the control circuit of the compression cylinder comprises a boosting circuit, an electrolytic capacitor, an electromagnetic coil connecting circuit, an electromagnetic coil current direction control circuit, a protection circuit controlled by a pressure relief valve and the like. The booster circuit, the electrolytic capacitor, the electromagnetic coil connecting circuit and the electromagnetic coil current direction control circuit charge the electromagnetic coil to generate electromagnetic power required by the circular reciprocating motion of the piston of the compression cylinder. Contact switches are arranged on a gas storage tank of the gas storage system and pressure relief valves in an air pressure chamber of the slurry storage system, the contact switches can control a compression cylinder control circuit to start and stop working, and when the air pressure is too high, the contact switches are opened, and the compression cylinder control circuit stops working; when the air pressure is low, the contact switch is closed, and the compression cylinder control circuit starts to work.

2. The control circuit of the gas storage system and the slurry storage system consists of an electromagnetic valve control circuit, a slurry conveying pipe contact switch and a gas conveying pipe electromagnetic valve. The electromagnetic valve of the gas pipe is normally in a closed state, so that the air pressure in the gas storage tank can meet the working requirement of guniting; when compressed air in the air pressure chamber of the slurry storage system acts on the extrusion piston, the extrusion piston extrudes cement mortar in the slurry storage barrel to the position of the contact switch of the slurry conveying pipe, and when the air pressure in the air conveying pipe reaches the air pressure value required by slurry spraying, the contact switch is closed, the control circuit of the air storage system and the slurry storage system starts to work, so that the electromagnetic valve of the air conveying pipe is opened, the compressed air and the cement mortar are mixed in the slurry-air mixing pipe, and the cement mortar with proper pressure can be sprayed to the wall of the damaged communication pipe through the spray head; when the device needs to stop working after the guniting work is finished, constructors can control the contact switch of the grout conveying pipe and the electromagnetic valve of the grout conveying pipe to be closed through the gas storage system and the control circuit of the grout storage system, and simultaneously disconnect the control circuit of the compression cylinder.

3. The electromagnetic roller control circuit consists of a roller position control circuit and a roller rotating circuit.

The roller position control circuit can control the vertical distance between the contact surface of the roller and the pipe hole and the surface of the device, and can adjust the position of the roller in non-nominal pipe holes of 100mm, 110mm and the like, so that the electromagnetic roller can be ensured to better drive the device to move in the pipe hole of the communication pipeline. A pressure sensor is arranged above the roller shaft fixed bearing, when the pressure born by the pressure sensor is smaller than a standard value, the pressure sensor opens a roller electromagnetic valve through an electromagnetic roller control circuit, compressed air in an air storage tank is conveyed to a pressure storage chamber for controlling the position of the roller through an air conveying pipe, the compressed air pushes an air pressure piston of a roller position control system to move downwards, a support rod controls a support frame to drive the roller to move downwards, the pressure born by the pressure sensor is increased, and when a set value is reached, the pressure sensor closes the roller electromagnetic valve through the electromagnetic roller control circuit; when the roller at the extension position needs to be retracted, a constructor opens the electromagnetic pressure release valve of the electromagnetic roller by controlling the movement control circuit, compressed air in the pressure storage chamber is released, the air pressure piston can move upwards under the action of external gravity and pressure, and the roller can retract.

The roller rotation circuit is composed of a boosting circuit, an electrolytic capacitor, an electromagnetic coil connecting circuit, an electromagnetic coil current direction control circuit and the like. When the device needs to move forwards, a constructor controls the boosting circuit to quickly charge the electrolytic capacitor through the control line, the capacitor discharges to the electromagnetic coil, and the magnet on the periphery of the electromagnetic coil can drive the outer sheath of the movable roller to start rotating so as to drive the device to move forwards in the communication pipeline; when the device needs to move backwards, a constructor controls a current direction control circuit of the electromagnetic coil to provide reverse current for the electromagnetic coil through a control line, and the movable roller starts to rotate reversely, so that the device can be driven to move backwards in the communication pipeline; when the device is required to be static, a constructor controls the electromagnetic roller control circuit through the control line to expand the position of the roller again, and the roller can support the device in a pipe hole of the communication pipeline. At this time, the electromagnetic roller control circuit can be closed, and as long as the electromagnetic pressure relief valve in the pressure storage chamber above the supporting rod is not opened, the supporting state can be continued all the time.

The guniting mechanism control line, the video system power supply line and the video signal transmission line are connected to a control cable at the tail end through a terminal board of the control circuit cabin, and constructors receive signals through the control platform and control the equipment.

(VIII) various pipelines, cables and flange plates

1. Various control lines led out from a terminal board of the circuit control cabin are led to the electromagnetic coil, the idler wheel, the pressure release valves, the electromagnetic valve and the contact switch of the compression cylinder through the longitudinal threading pipe and the transverse threading pipe, and constructors can realize indirect or direct control on corresponding devices through controlling the control circuit. Gas pipes are arranged between the compression cylinder and the gas storage tank, between the gas storage tank and the pulp storage barrel, between the gas storage tank and the pulp-gas mixing pipe and between the gas storage tank and the roller position control system; a slurry conveying pipe is arranged between the slurry storage barrel and the slurry-gas mixing pipe.

2. A control cable is led out from the tail end of the circuit control cabin and consists of a control wire and an outer protective layer, and a ruler code belt is printed on the surface of the cable. The control line is located the outer jacket, and the outer jacket can bear great longitudinal tension, and the surface is antifriction, can protect inside control line to can pull out communication pipe tube hole with this device if necessary. The control cable may be coiled on a cable reel outside the bore of the communication conduit. The control cable is led into the control circuit cabin through a wire inlet hole of the control circuit cabin, the control wire is connected to a terminal board of the circuit control cabin, and the cable outer protective layer is fixed on a traction rope fixing device of the circuit control cabin. The constructor can judge the approximate position which the device should reach and the approximate position of the device in the communication pipeline pipe hole according to the size belt on the surface of the cable.

3. The connecting hole of one end of the flange is in a screw hole structure, the connecting hole of the other end of the flange is a common round hole without screw holes, the two holes have the same diameter, and the two flanges are connected by adopting inner hexagon bolts with proper length and specification.

Application method

This device is assembled by the constructor, fills up cement mortar in the storage bucket, puts into communication pipe downthehole, opens control platform's power, and this device can the position of automatic adjustment gyro wheel, takes the control cable of tail end to remove in the communication pipe downthehole automatically. The constructor can observe the condition of the inner wall of the pipe hole of the communication pipeline through the monitoring probe, when the device reaches the position of the damaged pipe wall, the constructor can remotely control the device to stop moving through the control line and start the control circuit, so that the device starts to carry out guniting operation in the pipe hole under the monitoring of the monitoring probe; after the video monitoring platform shows that the guniting work of the damaged pipe wall is finished, the constructor closes the control circuit of the compression cylinder by carrying out remote control on the control circuit, controls the electromagnetic roller control circuit to provide reverse current for the roller, and the roller can convey the device out of a pipe hole of a communication pipeline. When the device is withdrawn from the pipe hole, the constructor should continuously recover the control cable.

If meet special circumstances, equipment is out of control, and constructor can pull out communication pipeline tube hole with this device through pulling the control line, prevents that this equipment from being blocked in the communication pipeline tube hole and causing the tube hole to be unable to use, has also avoided this device can not be taken out and cause economic loss for the construction unit.

Characteristics of

The design is ingenious, the structure is simple and compact, the manufacturing cost is low, the control is easy, the device can be suitable for communication pipelines with various apertures, and the omnibearing operation is realized; the device can automatically advance, and the traditional advancing mode using a tube perforating device is omitted.

The device has the following advantages:

(1) the device can realize remote control, reinforce and repair the blocking points of the pipe holes processed by other methods, increase the safety of the pipe holes of the communication pipeline and avoid the pipe holes of the communication pipeline from being blocked again.

(2) The device can work in a narrow tubular environment with the diameter of 90mm-110mm, has small volume and strong working capacity, and belongs to precise construction equipment; meanwhile, the size of each part is increased, so that the method can be used for repairing underground pipelines in other industries.

(3) The air pressure piston of the compression cylinder is driven by electromagnetism, and the traditional driving mode of a motor, a gear and a transmission rod is abandoned;

(4) the simple structure realizes that the air pressure piston in the compression cylinder performs bidirectional reciprocating work in a narrow environment, reduces the volume of the device and improves the efficiency of the compression cylinder for manufacturing compressed air;

(5) the control circuit can control the compression cylinder, the gas storage tank, the slurry storage barrel and the slurry spraying mechanism to automatically work;

(6) the pressure release valves arranged in the cylinder body of the compression cylinder, the air storage tank and the air pressure chamber of the pulp storage barrel can release pressure when the air pressure in the closed container is overhigh and can also send a signal for stopping working to the compression cylinder;

(7) the slurry-gas mixing pipe is arranged on the rotary transmission rod, and the bent pipe is arranged on the slurry-gas mixing pipe, so that the slurry spraying repair of damaged positions of the wall of the communication pipeline in all directions can be completed;

(8) the roller body of the electromagnetic roller adopts an electromagnetic driving structure, so that the device can move in a narrow space;

(9) the roller position control device in the electromagnetic roller can adapt to the apertures of various communication pipelines by adjusting the amount of the roller extending out of the roller groove;

(10) the plurality of rollers are arranged on the cross section of the pipe hole of the communication pipeline and are mutually extruded, so that the friction force between the rollers and the wall of the pipe hole can be improved, and the device can reliably move in the pipe hole;

(11) the outer sheath of the roller body is made of soft materials, the longitudinal section direction of the surface of the outer sheath is arc-shaped, the curvature radius of the arc-shaped outer sheath is the same as that of the pipe hole of the communication pipeline, and friction force between the roller body and the inner wall of the pipe hole of the communication pipeline can be increased.

(12) The tail part is connected with the control cable, so that the control of constructors to the equipment can be realized, and the device can be pulled out from the communication pipeline in a pipe hole when out of control, thereby avoiding causing economic loss for construction units.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the invention, as defined by the claims and the equivalents thereof, and which fall within the limits of the claims and the equivalents thereof.

Claims (10)

1. The utility model provides a communication pipe downthehole obstacle point of tube is restoreed and is used whitewashing device which characterized in that includes:

the gas storage tank is provided with a first gas inlet and a first gas outlet which are communicated with the inside of the gas storage tank on two sides respectively;

the rear end of the pulp storage barrel is connected to the front end of the air storage tank; an extrusion piston is arranged in the pulp storage barrel, the outer edge of the extrusion piston is abutted against the inner wall of the pulp storage barrel and can slide along the inner wall of the pulp storage barrel; the extrusion piston divides the interior of the pulp storage barrel into a pulp storage chamber and an air pressure chamber; the end surface of the slurry storage chamber is provided with a slurry outlet, and the side wall of the slurry storage chamber is provided with a grouting port; a second air inlet is formed in the end face of the air pressure chamber and connected to the first air outlet through a pipeline;

the rear end of the guniting mechanism is connected with the front end of the grout storage barrel; the guniting mechanism comprises a rotary control cabin, a slurry-gas mixing pipe and a spray head; a rotatable transmission rod arranged in the rotary control cabin penetrates out of the rotary control cabin from the front end of the rotary control cabin and is connected with the slurry-gas mixing pipe so as to drive the slurry-gas mixing pipe to rotate; the bottom end of the slurry-gas mixing pipe is connected with the slurry outlet through a slurry conveying pipe; an air inlet connected with the first air outlet through an air conveying pipe is formed in the side wall of the slurry-air mixing pipe, which is close to the bottom end; the spray head is connected to the top end of the slurry-gas mixing pipe.

2. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 1, further comprising:

a compression cylinder including a cylinder body, a compression piston, and an electromagnetic coil; the cylinder body is arranged into a hollow closed cavity; the compression piston is arranged in the cylinder body in a mode that the outer edge of the compression piston is abutted against the inner wall of the cylinder body, and a pair of air inlet and outlet ports are respectively arranged on two end faces of the cylinder body; the front end of the cylinder body is connected to the rear end of the gas storage tank, gas outlets on two end faces of the cylinder body are mutually connected, and the cylinder body is connected to the first gas inlet through a pipeline; the electromagnetic coil is wound outside the cylinder body, and the outer edge of the compression piston which is made of iron cylindrical hard magnet is sleeved with a rubber layer to be combined, so that the electromagnetic force generated when the electromagnetic coil is electrified drives the compression piston to do bidirectional reciprocating motion in the cylinder body, and further compressed air is generated.

3. The guniting device for repairing an obstacle point in a pipe hole of a communication pipeline according to claim 2, wherein air port baffles are respectively arranged on the inner side of the air inlet and the outer side of the air outlet which are arranged on the two end faces of the cylinder body, a U-shaped spring wire is arranged on one side, away from the air inlet or the air outlet, of each air port baffle, and the U-shaped spring wire generates extrusion force on the air port baffles under the action of no external force so as to seal the corresponding air inlet or the corresponding air outlet and open the corresponding air inlet or the corresponding air outlet when the external force is applied.

4. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 1, further comprising:

the monitoring probe is arranged at one end of the transmission rod connected with the slurry-gas mixing pipe; the surface of the lens of the monitoring probe is provided with a cleaning brush, and one end of the cleaning brush is connected with the surface of the lens in a mode of rotating along the surface of the lens.

5. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 2, further comprising:

the front end of the control circuit cabin is connected with the rear end of the cylinder body; the control circuit cabin is internally provided with a control circuit board, the rear end of the control circuit cabin is provided with a control cable, one end of the control cable extends into the control circuit cabin and is connected with the control circuit board, and the other end of the control cable is connected to an operation console.

6. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 5, further comprising:

the electromagnetic roller is electrically connected with the control circuit board; grooves for accommodating the electromagnetic rollers are respectively arranged on the top surfaces and the bottom surfaces of the control circuit cabin, the pulp storage barrel and the air storage tank; a supporting rod is arranged in the groove, the bottom end of the supporting rod is connected with a U-shaped supporting frame, and two end parts of the supporting frame are respectively connected to the centers of two sides of the electromagnetic roller; a pressure storage chamber is further arranged between the support rod and the groove and is connected to the first air outlet through an air conveying pipe, an air inlet electromagnetic valve is arranged at the connecting end of the pressure storage chamber and the air conveying pipe, an electromagnetic pressure release valve is arranged at the end far away from the connecting end with the air conveying pipe, and the air inlet electromagnetic valve and the electromagnetic pressure release valve are respectively connected to the control circuit board; an air pressure piston is further arranged between the pressure storage chamber and the supporting rod, a pressure sensor is further arranged at the connecting end of the supporting frame and the electromagnetic roller, the pressure sensor is connected with the control circuit board, and the control circuit board controls the inflation quantity of the pressure storage chamber according to the pressure value sensed by the pressure sensor so as to control the height of the electromagnetic roller protruding out of the groove.

7. The guniting device for repairing an obstacle point in a pipe hole of a communication pipeline according to claim 1, wherein a rotary motor and a gear transmission set are arranged in the rotary control cabin; the gear transmission set comprises a driving gear with a smaller diameter and a driven gear with a larger diameter; the center of the driving gear is connected to an output shaft of the rotating motor, the driven gear is meshed with the driving gear, and the transmission rod penetrates through the center of the driven gear to rotate along with the rotation of the driven gear.

8. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 1, wherein a bent pipe is provided on the slurry-air mixing pipe between the transmission rod and the air pipe.

9. The guniting device for repairing an obstacle point in a pipe hole of a communication pipe according to claim 1, wherein a check valve is provided in the grout pipe.

10. The guniting device for repairing an obstacle point in a pipe hole of a communication pipeline according to claim 5, wherein the air storage tank, the grout storage barrel and the cylinder body are provided with pressure relief valves connected with the control circuit board.