CN109914341B

CN109914341B - Concrete river levee is defective to fill device under water

Info

Publication number: CN109914341B
Application number: CN201910267876.5A
Authority: CN
Inventors: 王博; 赵继伟; 刘英杰; 范天雨; 李智勇; 聂相田
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-07-31
Anticipated expiration: 2039-04-03
Also published as: CN111636364A; CN111636364B; CN111636365B; CN109914341A; CN111636365A

Abstract

The utility model provides a concrete river levee is defective to fill device under water, includes the work base station, rotates the regulating arm that sets up on the work base station and have flexible function and depend on the transmission house steward on the regulating arm, is provided with defective repair cover and repair complementary unit at the free end of regulating arm, defective repair cover includes that a bottom opening is used for covering the circular housing of concrete river levee defective part, intercommunication in transmission house steward's end and the housing to make the cement mortar pipe in the transmission house steward stretch into in the housing to carry cement mortar to repair the material in it. The defect filling device realizes underwater repair operation, can perform timely repair when the defect of the river bank is found, prevents the defect position from being enlarged, and avoids potential safety hazards of the river bank.

Description

Concrete river levee is defective to fill device under water

Technical Field

The invention relates to a concrete river levee in a water conservancy facility, in particular to an underwater defect filling device for the concrete river levee.

Background

In the prior art, water conservancy facilities such as river banks and the like are generally constructed by adopting cement concrete, and because some defects such as cracks, holes and the like exist in concrete pouring, the defects are soaked in water for a long time, the cracks, the holes and the like are corroded by the water and are further expanded, and the surface defects of the facilities such as the river banks and the like are caused. Since most of these defects are under water for a long time, if they are not repaired in time, the damage speed is rapidly increased under the water penetration and the parasitism of algae and underwater microorganisms, causing damage to the river levee and dam.

In order to avoid such a situation, it is necessary to repair the damaged position of the river bank. However, the damaged portion is underwater, which is inconvenient in repair and requires a water level to be lowered to expose the damaged portion, but the water level of the river bank is difficult to be lowered by manual control, so that the damaged portion of the river bank is basically repaired in a cut-off or dry season.

Disclosure of Invention

In order to solve the problem that the concrete river levee can not be repaired in time after being damaged due to various reasons in the prior art, the invention provides the underwater defect filling device for the concrete river levee, which can realize underwater filling operation, effectively prevent the river levee from being further damaged and eliminate potential safety hazards in time.

The technical scheme adopted by the invention for solving the technical problems is as follows: a kind of underwater defect filling device of concrete river levee, including the work base station, rotate the control arm that sets up on the work base station and has flexible function and depend on the transmission manifold on the control arm, there are defect repair covers and repair the auxiliary mechanism in the free end of the control arm, the said defect repair cover includes a bottom opening is used for covering the round housing of the defect position of the concrete river levee, the end of the transmission manifold communicates with housing, in order to make the cement mortar pipe in the transmission manifold stretch into housing, and convey the cement mortar repair material to it, also there are compressed gas admission pipes and fluid discharge pipes in the said transmission manifold, wherein, one end of the compressed gas admission pipe communicates with an air compressor, another end stretches into housing; the fluid discharge pipe is used for communicating the space in the housing with the external atmosphere, compressed air generated by the air compressor is sent into the housing through the compressed gas inlet pipe, and water in the housing is discharged out of the housing through the fluid discharge pipe, so that a waterless operation space is formed in the housing;

the repairing auxiliary mechanism comprises a rotating shaft extending into the center of the housing, a rotating scraper is arranged at the bottom of the rotating shaft, the top of the rotating shaft penetrates out of the housing and is rotationally connected with a sliding block arranged in an installation cavity in the free end of the adjusting arm, two sliding rails are symmetrically arranged on the side wall of the installation cavity, the sliding block is in sliding fit with the two sliding rails, and the sliding block is controlled by a telescopic rod of a lifting oil cylinder arranged at the top of the installation cavity to reciprocate along the sliding rails so as to realize the contact or separation of the rotating scraper and the surface of the concrete river bank covered by the housing;

the part of the rotating shaft, which is positioned in the installation cavity, is sleeved with a conical transmission gear I, and when a telescopic rod of the lifting oil cylinder controls the sliding block to descend to the lowest position, the rotating scraper is in contact with the surface of the concrete river bank, at the moment, the conical transmission gear I is meshed with a conical transmission gear II which penetrates through a pore passage on the side wall of the installation cavity, the conical transmission gear II is driven to rotate by a speed reducer driven by a motor, so that power is transmitted to the rotating shaft, and the rotating shaft drives the rotating scraper to rotate on the surface of the concrete river bank so as to remove impurities on the surface of the river bank or scrape cement mortar into a defect part and smooth; and a water-proof shell for sealing the motor, the speed reducer and the pore passage in the conical transmission gear II is arranged outside the conical transmission gear II.

In a preferred embodiment of the present invention, the working base is provided with a cement mortar tank with a stirrer; the adjusting arm is fixedly arranged on a hollow rotating platform, a mortar pump is arranged in an inner cavity of the hollow rotating platform, a suction inlet of the mortar pump is communicated with the bottom of the cement mortar tank through a hose, and a discharge outlet of the mortar pump is connected with a cement mortar pipe; the hollow rotating platform is arranged on a turntable, a plurality of supporting balls rolling at the bottom of the pits on the working base platform are arranged at the bottom of the turntable, a rotating shaft is arranged at the center of the bottom of the turntable and is connected with a speed reducer driven by a motor through a transmission gear set, so that the rotating shaft, the turntable and the hollow rotating platform are driven by power output by the motor to synchronously rotate, and the orientation of the adjusting arm is adjusted.

Another preferred embodiment of the invention is that the adjusting arm comprises a first telescopic arm, a second telescopic arm and a third telescopic arm which are hydraulically driven and sequentially hinged, a first adjusting oil cylinder for adjusting an included angle between the first telescopic arm and the second telescopic arm is arranged between the first telescopic arm and the second telescopic arm, a second adjusting oil cylinder for adjusting an included angle between the second telescopic arm and the third telescopic arm is arranged between the second telescopic arm and the third telescopic arm, the length of the adjusting arm is changed by extending and shortening the first telescopic arm, the second telescopic arm and the third telescopic arm, and the inclination angle of the adjusting arm is changed by extending and shortening a piston rod of the first adjusting oil cylinder and a piston rod of the second adjusting oil cylinder, so that the defect repairing cover arranged at the free end of the adjusting arm is perpendicular to the defect part of the concrete river bank to be repaired.

In another preferred embodiment of the present invention, the conveying main pipe is uniformly provided with supporting sleeve plates along the length direction thereof, and the supporting sleeve plates are provided with a plurality of through holes for allowing the cement mortar pipe, the compressed gas inlet pipe and the fluid outlet pipe to pass through.

In another preferred embodiment of the present invention, the circular housing of the defect repair cover comprises a circular plate and circular truncated cone-shaped sleeves distributed around the edge of the circular plate, a circular truncated cone-shaped rubber sleeve is arranged on the inner wall of the circular truncated cone-shaped sleeve, the bottom of the circular truncated cone-shaped rubber sleeve exceeds the bottom of the circular truncated cone-shaped sleeve, an inflation rubber sleeve is arranged close to the inner wall of the circular truncated cone-shaped rubber sleeve, the bottom of the inflation rubber sleeve expands outwards in an arc shape and exceeds the bottom of the circular truncated cone-shaped sleeve, so that after the inflation of the inflation rubber sleeve, the inflation rubber sleeve is extruded on the concrete river levee by the circular truncated cone-; the top of the inflatable rubber sleeve is provided with a flat plate part attached to the circular plate, the flat plate part is provided with an air inlet, and the air inlet is communicated with an external air compressor through an inflatable tube; the inflation tube is arranged in the transmission main tube.

In another preferred embodiment of the invention, a rubber ring with a cylindrical cross section is arranged around the inner side wall of the inflatable rubber sleeve, the top height of the rubber ring is flush with the bottom of the circular truncated cone-shaped sleeve, and the bottom height of the rubber ring is flush with the bottom of the circular truncated cone-shaped rubber sleeve.

Compared with the prior art, the invention has the following beneficial effects:

1) according to the invention, the defect repairing cover is arranged at the free end of the adjusting arm with the telescopic function, the circular housing of the defect repairing cover can cover the defect part to be repaired, then the rotary scraper in the housing moves downwards under the pushing of the lifting oil cylinder and is tightly pressed against the surface of the river bank, then the motor reducer in the repairing auxiliary mechanism moves, and the rotary scraper is driven to rotate by the conical transmission gear I and the conical transmission gear II, so that the effects of cleaning algae, silt and aquatic organisms on the surface of the river bank are achieved; after the cleaning is finished, compressed air is injected into the housing through the compressed air inlet pipe, and water mixed impurities in the housing are discharged through the fluid discharge pipe due to the injection of the compressed air, so that a waterless operation space is formed in the housing; finally, injecting cement mortar repairing materials into the housing by using the cement mortar pipe, and scraping the cement mortar repairing materials into the defect position and leveling the cement mortar repairing materials under the rotation of the rotary scraper; by the defect filling device, underwater repairing operation is realized, timely repairing can be performed when the defect of the river bank is found, the defect position is prevented from being enlarged, and potential safety hazards of the river bank are avoided;

2) in order to ensure the sealing performance of the defect repairing cover and smoothly extrude and discharge water in the defect repairing cover when compressed air is injected, a circular truncated cone-shaped rubber sleeve and an inflatable rubber sleeve are arranged on the inner wall of a circular truncated cone-shaped sleeve of the circular housing at one time, and the bottom of the inflatable rubber sleeve expands outwards in an arc shape and exceeds the bottom of the circular truncated cone-shaped sleeve, so that after the interior of the inflatable rubber sleeve is inflated, the inflatable rubber sleeve is extruded on a concrete river dike by the circular truncated cone-shaped sleeve, and sealing is realized; in order to further improve this kind of sealing performance, encircle it is cylindric rubber circle to be provided with the cross-section on the rubber sleeve inside wall to aerify, the top height of this rubber circle and the telescopic bottom parallel and level of round platform form, the bottom height is highly parallel and level with the bottom of round platform form rubber sleeve, when aerifing the rubber sleeve like this and aerifing and being extruded the river levee, the rubber circle can be perfect will aerify the gap between rubber sleeve and the river levee surface and shelter from, has improved sealing performance.

Drawings

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

FIG. 2 is a schematic structural view of a defect repair cover and repair assist mechanism;

FIG. 3 is a schematic view of the repair aid and the transfer manifold;

FIG. 4 is a schematic view of the internal structure of the transfer manifold;

fig. 5 is a schematic structural view of the working base.

Reference numerals: 1. a working base platform 101, a cement mortar tank 102, a hollow rotating platform 103, a rotary table 104, a mortar pump 105, support balls 106, a rotary shaft 107, a hose 2, a transmission manifold 201, an inflation pipe 202, a compressed gas inlet pipe 203, a cement mortar pipe 204, a fluid outlet pipe 205, a support sleeve plate 3, a regulating arm 301, a first telescopic arm 302, a second telescopic arm 303, a third telescopic arm 304, a first regulating cylinder 305, a second regulating cylinder 306, a mounting cavity 307, a duct, 4, a defect repair cover 401, a circular plate 402, a circular truncated cone sleeve 403, a circular truncated cone rubber sleeve 404, an inflation rubber sleeve 405, a rubber ring 5, a repair auxiliary mechanism 501, a waterproof shell 502, a cone transmission gear II, 503, a slide rail 504, a lifting cylinder 505, a slide block 506, a rotating shaft 507 and a cone transmission gear, 508. the scraper is rotated.

Detailed Description

The technical solution of the present invention is further described with reference to the following specific embodiments. The parts of the invention not described in detail are prior art, such as the telescopic arm, the adjusting cylinder, the scraper in the rotary scraper, etc.

Example 1

As shown in fig. 1-4, an underwater defect filling device for a concrete river levee comprises a working base 1, an adjusting arm 3 which is rotatably arranged on the working base 1 and has a telescopic function, and a transmission main pipe 2 attached to the adjusting arm 3, wherein a defect repairing cover 4 and a repairing auxiliary mechanism 5 are arranged at the free end of the adjusting arm 3, the defect repairing cover 4 comprises a circular cover shell with an opening at the bottom for covering the defect part of the concrete river levee, the tail end of the transmission main pipe 2 is communicated with the inside of the cover shell, so that a cement mortar pipe 203 in the transmission main pipe 2 extends into the cover shell and is used for conveying cement mortar repairing materials into the cover shell, a compressed gas inlet pipe 202 and a fluid outlet pipe 204 are further arranged in the transmission main pipe 2, wherein one end of the compressed gas inlet pipe 202 is communicated with an air compressor, and the other end of the compressed gas inlet pipe 202 extends into the cover shell; the fluid discharge pipe 204 communicates the space in the housing with the outside atmosphere, the compressed air generated by the air compressor is sent into the housing through the compressed gas inlet pipe 202, and the water in the housing is discharged out of the housing through the fluid discharge pipe 204, so that a waterless working space is formed in the housing;

the repair auxiliary mechanism 5 comprises a rotating shaft 506 extending into the center of the housing, a rotating scraper 508 is arranged at the bottom of the rotating shaft 506, the top of the rotating shaft 506 penetrates out of the housing and then is rotationally connected with a sliding block 505 arranged in a mounting cavity 306 in the free end of the adjusting arm 3, two sliding rails 503 are symmetrically arranged on the side wall of the mounting cavity 306, the sliding block 505 is in sliding fit with the two sliding rails 503, the sliding block 505 is controlled by a telescopic rod of a lifting oil cylinder 504 arranged at the top of the mounting cavity 306 to reciprocate along the sliding rails 503, so that the rotating scraper 508 is in contact with or separated from the surface of the concrete river levee covered by the housing, and limiting blocks are arranged at the lower end or two ends of the sliding rails 503 to prevent the sliding block 505 from;

a conical transmission gear I507 is sleeved on the part, located in the installation cavity 306, of the rotating shaft 506 in a surrounding mode, when the telescopic rod control slide block 505 of the lifting oil cylinder 306 descends to the lowest position, the rotating scraper 508 is in contact with the surface of the concrete river bank, at the moment, the conical transmission gear I507 is meshed with a conical transmission gear II 502 penetrating through a pore channel 307 in the side wall of the installation cavity 306, the conical transmission gear II 502 is driven to rotate by a speed reducer driven by a motor, power is further transmitted to the rotating shaft 506, the rotating scraper 508 is driven by the rotating shaft 506 to rotate on the surface of the concrete river bank, and therefore sundries on the surface of the river bank are removed or cement mortar is scraped into a defect; a water-stop shell 501 for sealing the motor, the speed reducer and the duct 307 is arranged outside the conical transmission gear II 502, and the water-stop shell 501 prevents water from entering the water-stop shell.

The method for filling the defect position of the river bank comprises the following steps:

1) adjusting an adjusting arm 3 with a telescopic function, firstly enabling a defect repairing cover 4 arranged at a free end of the adjusting arm to be positioned at a defect part of a river levee to be filled, further continuously adjusting the adjusting arm 3 to enable a rotary scraper 508 in the defect repairing cover 4 to be parallel to the surface of the river levee, and finally enabling a circular cover shell of the defect repairing cover 4 to be tightly abutted against the surface of the river levee through the adjusting arm 3;

2) starting a lifting oil cylinder 504 in the repair auxiliary mechanism 5, extending an expansion rod of the lifting oil cylinder to drive a sliding block 505 and a rotating shaft 506 to synchronously move downwards to the lowest position along a sliding rail 503, wherein at the moment, a conical transmission gear I507 on the rotating shaft 506 is meshed with a conical transmission gear II 502, and a rotating scraper 508 at the bottom of the rotating shaft 506 is tightly attached to the surface of the river bank;

3) starting a motor in the repair auxiliary mechanism 5, driving a speed reducer to transmit power to a conical transmission gear II 502 by the motor, further driving a rotating shaft 506 and a rotating scraper 508 to rotate, and cleaning impurities such as algae, sludge, aquatic organisms and the like on the surface of the river bank by the rotating scraper 508 in the rotating process;

4) after cleaning, the motor in the repair assisting mechanism 5 is turned off to stop the rotation of the rotary scraper 508;

5) compressed air is injected into the housing of the defect repair cover 4 through the compressed air inlet pipe 202, and water mixed impurities in the housing are discharged through the fluid discharge pipe 204 due to the injection of the compressed air, so that a water-free working space is formed in the housing;

6) cement mortar repair material is injected into the defect part in the housing through the cement mortar pipe 203, then the motor is started to enable the rotary scraper 508 to rotate, and the cement mortar repair material is scraped into the defect position and is leveled.

The foregoing is a basic embodiment of the present invention, and further modifications, optimizations and limitations can be made on the foregoing, so as to obtain the following examples:

example 2

The present embodiment is a further modification of embodiment 1, and as shown in fig. 5, a cement mortar tank 101 with a stirrer is disposed on the working platform 1; the adjusting arm 3 is fixedly arranged on a hollow rotating platform 102, a mortar pump 104 is arranged in an inner cavity of the hollow rotating platform 102, a suction inlet of the mortar pump 104 is communicated with the bottom of the cement mortar tank 101 through a hose 107, and a discharge outlet of the mortar pump 104 is connected with a cement mortar pipe 203; the hollow rotating platform 102 is arranged on a rotating disc 103, the bottom of the rotating disc 103 is provided with a plurality of supporting balls 105 rolling at the bottom of the concave pits on the working base platform 1, the center of the bottom of the rotating disc 103 is provided with a rotating shaft 106, the rotating shaft 106 is connected with a speed reducer driven by a motor through a transmission gear set, so that the power output by the motor drives the rotating shaft 106, the rotating disc 103 and the hollow rotating platform 102 to synchronously rotate, and the orientation of the adjusting arm 3 is adjusted.

Example 3

This embodiment is a further modification made on the basis of embodiment 1, as shown in fig. 1, the adjusting arm 3 comprises a first telescopic arm 301, a second telescopic arm 302 and a third telescopic arm 303 which are driven by hydraulic pressure and are hinged in sequence, a first adjusting oil cylinder 304 for adjusting the included angle between the first telescopic arm 301 and the second telescopic arm 302 is arranged between the two telescopic arms, a second adjusting oil cylinder 305 for adjusting the included angle between the second telescopic arm 302 and the third telescopic arm 303 is arranged between the second telescopic arm 302 and the third telescopic arm 303, the length of the adjusting arm 3 is changed by the extension and contraction of the first telescopic arm 301, the second telescopic arm 302 and the third telescopic arm 303, the inclination angle of the adjusting arm 3 is changed by extending and shortening the piston rod of the first adjusting oil cylinder 304 and the piston rod of the second adjusting oil cylinder 305, so that the defect repairing cover 4 arranged at the free end of the adjusting arm 3 is perpendicular to the defect part of the concrete river bank to be repaired.

Example 4

This embodiment is a further improvement on embodiment 1, and as shown in fig. 2 to 4, the interior of the conveying main pipe 2 is uniformly provided with supporting sleeve plates 205 along the length direction thereof, and the supporting sleeve plates 205 are provided with a plurality of through holes for passing through the cement mortar pipe 203, the compressed gas inlet pipe 202 and the fluid outlet pipe 204.

Example 5

The embodiment is a further improvement on the basis of embodiment 1, and as shown in fig. 2, the circular housing of the defect repairing cover 4 includes a circular plate 401 and a circular truncated cone-shaped sleeve 402 distributed around the edge of the circular plate 401, the diameter of the top of the circular truncated cone-shaped sleeve 402 is smaller than that of the bottom, a circular truncated cone-shaped rubber sleeve 403 is arranged on the inner wall of the circular truncated cone-shaped sleeve 402, the bottom of the circular truncated cone-shaped rubber sleeve 403 exceeds the bottom of the circular truncated cone-shaped sleeve 402, an inflatable rubber sleeve 404 is arranged close to the inner wall of the circular truncated cone-shaped rubber sleeve 403, the bottom of the inflatable rubber sleeve 404 expands outward in an arc shape and exceeds the bottom of the circular truncated cone-shaped sleeve 402, so that after being inflated inside, the inflatable rubber sleeve is extruded on a concrete embank; the top of the inflatable rubber sleeve 404 is provided with a flat plate part attached to the circular plate 401, the flat plate part is provided with an air inlet, and the air inlet is communicated with an external air compressor through an inflatable tube 201; the gas-filled tube 201 is arranged in the transfer manifold 2.

Example 6

In this embodiment, a further improvement is made on the basis of embodiment 5, as shown in fig. 2, a rubber ring 405 with a cylindrical cross section is arranged around the inner side wall of the inflatable rubber sleeve 404, the top height of the rubber ring 405 is flush with the bottom of the circular truncated cone-shaped sleeve 402, and the bottom height of the rubber ring is flush with the bottom of the circular truncated cone-shaped rubber sleeve 403.

In the above embodiments of the present invention, the control modes of the first telescopic arm 301, the second telescopic arm 302, the third telescopic arm 303, the first adjusting cylinder 304 and the second adjusting cylinder 305 in the adjusting arm 3 are all conventional control modes, and the control buttons thereof are integrated in the operation chamber provided on the work base 1; the working base 1 can be arranged to be movable, namely, the bottom of the working base is provided with power-driven wheels or the working base is directly placed on a transport vehicle; in addition, the control mode of the lifting cylinder 306 and the motor in the repair assisting mechanism 5 is also a conventional control mode, and only the control button is required to be integrated on the working base 1.

In addition, in order to find the underwater defect position better, and to enable the defect repairing cover 4 to cover the defect part to be repaired, a lighting lamp and a monitoring probe can be arranged at the top in the circular cover shell, the line of the lighting lamp and the data line of the monitoring probe are respectively led out from the transmission main pipe 2, the data line of the monitoring probe is connected with the display screen in the operating room on the working base station 1, so that an operator can move the adjusting arm 3 through the content displayed on the display screen, and the defect repairing cover 4 covers the defect part to be repaired.

In the invention, in order to improve the setting speed of the cement mortar, besides adding conventional additives such as an accelerating agent, a water reducing agent and the like, compressed gas generated by compression of an air compressor can be heated by an electric heating wire and then enters the housing through the compressed gas inlet pipe 202, so that the setting of the cement mortar repairing material is accelerated.

The transmission main pipe 2 and each pipeline in the transmission main pipe are actually arranged on the movable vehicle body 1 through a wire spool, and the wire spool rotates in the process of extending along with the adjusting arm 3, so that the transmission main pipe 2 and the adjusting arm 3 extend synchronously; of course, when the adjusting arm 3 is contracted, the wire spool is reversely rotated to wind the transmission main pipe 2; the wire spool is an existing wire spool and belongs to the prior art, and therefore, the detailed description of the wire spool is omitted.

Claims

1. The utility model provides a concrete river levee is defective to fill device under water, includes work base station (1), rotates and sets up on work base station (1) and has flexible function's regulating arm (3) and depends on transmission house steward (2) on regulating arm (3), is provided with defect repair cover (4) and repair complementary unit (5) at the free end of regulating arm (3), defect repair cover (4) include a bottom opening and are used for covering the circular housing of concrete river levee defect position, communicate in the end of transmission house steward (2) and the housing to make cement mortar pipe (203) in transmission house steward (2) stretch into in the housing to carry cement mortar to repair the material to its interior, its characterized in that: a compressed gas inlet pipe (202) and a fluid outlet pipe (204) are also arranged in the transmission main pipe (2), wherein one end of the compressed gas inlet pipe (202) is communicated with an air compressor, and the other end of the compressed gas inlet pipe extends into the housing; the fluid discharge pipe (204) is used for communicating the space in the housing with the external atmosphere, compressed air generated by the air compressor is sent into the housing through the compressed gas inlet pipe (202), and water in the housing is discharged out of the housing through the fluid discharge pipe (204), so that a water-free working space is formed in the housing;

the repairing auxiliary mechanism (5) comprises a rotating shaft (506) extending into the center of the housing, a rotating scraper (508) is arranged at the bottom of the rotating shaft (506), the top of the rotating shaft (506) penetrates out of the housing and then is rotationally connected with a sliding block (505) arranged in a mounting cavity (306) in the free end of the adjusting arm (3), two sliding rails (503) are symmetrically arranged on the side wall of the mounting cavity (306), the sliding block (505) is in sliding fit with the two sliding rails (503), and the sliding block (505) is controlled by a telescopic rod of a lifting oil cylinder (504) arranged at the top of the mounting cavity (306) to reciprocate along the sliding rails (503) so as to realize the contact or separation of the rotating scraper (508) and the surface of the concrete embankment covered by the housing;

a conical transmission gear I (507) is sleeved on a part, located in the installation cavity (306), of the rotating shaft (506) in a surrounding mode, when a telescopic rod control sliding block (505) of the lifting oil cylinder (504) descends to the lowest position, a rotating scraper (508) is in contact with the surface of the concrete river bank, at the moment, the conical transmission gear I (507) is meshed with a conical transmission gear II (502) penetrating through a pore channel (307) in the side wall of the installation cavity (306), the conical transmission gear II (502) is driven to rotate by a speed reducer driven by a motor, power is further transmitted to the rotating shaft (506), and the rotating scraper (508) is driven by the rotating shaft (506) to rotate on the surface of the concrete river bank so as to scrape cement mortar into a defect part and level the cement mortar after impurities on the surface of the; a water-proof shell (501) which seals the motor, the speed reducer and the pore canal (307) is arranged outside the conical transmission gear II (502);

the adjusting arm (3) comprises a first telescopic arm (301), a second telescopic arm (302) and a third telescopic arm (303) which are driven by hydraulic pressure and are hinged in sequence, a first adjusting oil cylinder (304) for adjusting the included angle between the first telescopic arm (301) and the second telescopic arm (302), a second adjusting oil cylinder (305) for adjusting the included angle between the second telescopic arm (302) and the third telescopic arm (303), the length of the adjusting arm (3) is changed by the extension and contraction of the first telescopic arm (301), the second telescopic arm (302) and the third telescopic arm (303), the inclination angle of the adjusting arm (3) is changed by extending and shortening the piston rod of the first adjusting oil cylinder (304) and the piston rod of the second adjusting oil cylinder (305), so that the defect repairing cover (4) arranged at the free end of the adjusting arm (3) is vertical to the defect part of the concrete river bank to be repaired;

the conveying main pipe (2) is internally and uniformly provided with supporting sleeve plates (205) along the length direction of the conveying main pipe, and the supporting sleeve plates (205) are provided with a plurality of through holes for the cement mortar pipes (203), the compressed gas inlet pipe (202) and the fluid discharge pipe (204) to pass through.