CN114310528A - Mortar coating auxiliary device for building wall repair and repair method thereof - Google Patents

Abstract

The invention belongs to the technical field of building repair, in particular to a paste coating auxiliary device for building wall repair and a repair method thereof, aiming at the problem that the wall is easy to crack due to the fact that paste coating at the later stage is different from peripheral walls in the shrinkage rate in the repair process of the wall in the prior art, the invention provides the following scheme. When the wall grout repairing tool is used and a defective wall needs to be repaired, the polishing disc is controlled to be close to the vicinity of the gap of the wall grout, then the edge of the gap is deeply polished towards the direction of the stone wall, so that the contact area of the wall grout and the grout which is injected later is increased, and the fusion effect of the grout and the grout which are injected later is improved.

Description

Mortar coating auxiliary device for building wall repair and repair method thereof

Technical Field

The invention relates to the technical field of building repair, in particular to a mortar coating auxiliary device for building wall repair and a repair method thereof.

Background

The hollowing is one of the wall diseases widely distributed, which means that the wall is affected by a certain kind to cause the wall surface to bulge or crack, firstly the ground layer is separated from the local small area of the wall main body, and the hollowing area can be gradually expanded under the long-term action of the factors such as temperature and humidity change, the wall self-weight and the structural deformation. If the treatment is not carried out in time, when the area of the hollow drum is expanded to a certain degree, the wall can fall to the ground under the action of vibration caused by self weight or movable load.

For repairing and reinforcing hollowing walls in China, a method of uncovering, repairing, reinforcing and replying or a method of temporary anchoring and reinforcing is generally adopted, the former causes great damage to the walls due to block cutting, the latter uses a large anchor head to seriously shield the wall surface and often leaves sequelae due to improper operation,

the existing building wall repairing method mainly comprises a grouting reinforcement method and a removing and sticking method, although the method can repair the wall to a certain degree, the former method has the following problems that the repairing procedure is complex, the wall can be damaged to a large degree, and in the later repairing process of the wall, the problem of cracking is easily caused because the later applied slurry is different from the peripheral wall in the shrinkage rate, so that a novel slurry coating auxiliary device, namely a repairing method is needed.

Disclosure of Invention

The invention provides a paste coating auxiliary device for building wall restoration and a restoration method thereof, aiming at overcoming the problem that the later-stage paste coating is different from the surrounding wall in the shrinkage rate and is easy to crack in the wall restoration process in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a mortar coating auxiliary device for building wall restoration and a restoration method thereof comprise a wall raw mortar to be restored, a stone wall and a lifting seat, wherein the top end of the lifting seat is rotatably connected with a fixed disc, the top end of the fixed disc is close to two ends and is respectively fixed with a mechanical arm and a fixed box with a cuboid structure of an inner cavity, one side of the fixed box, which is far away from the mechanical arm, is embedded with an iron sheet, the middle part of one side edge of the fixed box, which is close to the iron sheet, and four corners are respectively fixed with a spray pipe, the positions, which are close to the center of the fixed box, of one end of the spray pipe, which is far away from the fixed box, are respectively inserted with an inclined spray pipe, one side, which is close to the middle part, of all the spray pipes is respectively fixed with a spring rope, one end, which is far away from the spray pipe, of the spring rope is fixed with an outer barrel with a rectangular tubular structure, the inner part of the outer barrel is connected with a motor cover in a sliding manner, and the middle part, which is close to the bottom of the outer barrel, of the motor cover is fixed with an electric push rod, the inner part of the motor cover is connected with a driving motor in a sliding way near an opening, and the top end of an output shaft of the driving motor is fixed with a polishing disc, the edge of the circumference of one side of the polishing disc, which is far away from the driving motor, is fixed with convex cones which are distributed in two circles at equal intervals, the outer wall of the circumference of the polishing disc is provided with six cylindrical sinking grooves, the inner walls of the cylindrical sinking grooves are connected with an inner sliding barrel in a sliding way, the opening of the inner sliding barrel extends to the bottom of the cylindrical sinking grooves, a compression spring is fixed between one end of the inner sliding barrel, which is near the bottom of the groove, and the end of the inner sliding barrel, which is far away from the compression spring, is fixed with arc-shaped cutters, all the arc-shaped cutters are distributed in central symmetry, and the plane where the arc-shaped cutters are located has a certain included angle with the horizontal plane, so that when the incomplete wall needs to be repaired, only need to control the polishing disc to be close to the near the notch of the wall, then go deep into to the direction of stone wall to the breach edge and polish again, and then can let the magma area of contact of wall magma and later stage filling increase to improve the integration effect of the mud of later stage filling and magma.

As a preferable scheme of the present invention, a magnet block is fixed at an opening at one end of the outer tub close to the fixing box, an iron sheet is embedded in an outer wall of one side of the fixing box close to the magnet block, roller seats are fixed at four corners of one side of the magnet block close to the iron sheet, and balls are embedded in the roller seats, so that the grinding disc can always move horizontally along a plane when in use, when in operation, the shoulder cutting depth at the notch can be ensured to be consistent, and the later generated bonding effect and the expansion rate can be kept consistent.

In a preferable scheme of the invention, groove-shaped slide rails with opposite openings are respectively fixed on the inner walls of the upper side and the lower side of the outer barrel, the sliding grooves of the two groove-shaped slide rails are respectively connected with a tower-shaped slide block in a sliding manner, and a same rectangular fixing frame is fixed between the two tower-shaped slide blocks.

As a preferable scheme in the invention, the driving motor is in sliding connection with the inner wall of the motor cover, the outer walls of two opposite sides of the driving motor are respectively fixed with the guide block, the outer wall of the motor cover is provided with the guide groove matched with the guide block, and the buffer spring is fixed between the tail end of the driving motor and the bottom of the motor cover, so that the extending length of the electric push rod can be directly adjusted to a proper position when the polishing disc just contacts the surface of the raw wall pulp in use, and then the polishing depth is slowly executed to a specified depth under the action of the buffer spring.

As a preferable scheme in the invention, a fan is fixed on the inner wall of the fixed box close to the middle, an air outlet of the fan is communicated with two air outlet pipes through a pipe connecting piece, the two air outlet pipes respectively penetrate through the fixed box and are inserted into the spray pipes at the upper end and the lower end, an electromagnetic valve is arranged between the two spray pipes, and the central line of the inclined spray pipe faces towards the incomplete position to be repaired, so that when a polishing disc is polished to generate dust in use, the inclined spray pipe can spray the polishing part, and the opening position of the upper spray pipe and the lower spray pipe can be adjusted according to the position of the polishing part away from an operator, so that the dust generated in polishing can float away from the operator.

According to the preferable scheme of the invention, a mechanical arm is fixed on one side, far away from the fixing box, of the top end of the fixing disc through a bolt, a telescopic barrel is fixed on the top end of the mechanical arm, supporting rods distributed in an umbrella shape are fixed at the end parts of the telescopic barrel extending rods, and fixing claws are fixed at the end parts of the supporting rods.

As a preferable scheme in the invention, a protection template is fixed on one side of the fixed claw close to the notch, rope holes distributed at equal intervals are formed in the surface of the protection template, drill holes distributed at equal intervals are formed in the edge of the stone wall close to the inner part of the notch, expansion bolts are plugged in the drill holes, an iron wire ring is screwed on the end part of a stud of each expansion bolt, iron wires distributed at equal intervals are welded at the circumferential edge of one side of the iron wire ring away from the stone wall, and nodes distributed at equal intervals are welded on the iron wires, so that the roughness of the outer wall of each iron wire can be increased in use, the adhesive force between the iron wires and slurry can be increased, and the slurry is in closer contact with the raw slurry of the wall.

As a preferable scheme in the invention, a rope winding device is arranged on one side of the protection template, which is far away from the expansion bolt, and the rope winding device comprises two fixing plates which are parallel to each other, a same rotating shaft is rotatably connected between the two fixing plates, a poking wheel is fixed at the end part of the rotating shaft, a convex pipe is fixed at the edge of the poking wheel, a fastening bolt is screwed in the convex pipe, a pull rope is fixed at one end of the iron wire ring, which is close to the rotating shaft, and the other end of the pull rope passes through a rope hole and is fixed on the outer wall of the rotating shaft, so that when the mud coated with the mud needs to be fixed and prevented from collapsing, the pull rope can be wound by poking the convex pipe, and the protection template is tightly buckled on the surface of the original wall pulp, so as to ensure that the mud coated with the protection template is fixed on the stone wall.

As the preferable scheme of the invention, the shoulder cutting plane of the wall raw pulp is provided with a V-shaped groove matched with the tip of the arc-shaped cutter.

A method for repairing a building wall, comprising the following operative steps: the utility model discloses a wall primary pulp, including fixing box, drive motor, the edge of breach, the interior slip bucket that slides in the cylindricality heavy groove of polishing dish edge department of high-speed rotation can let the arc cutter open the V-arrangement groove to shoulder under the effect of eccentricity, treat that breach edge handles after, drill along breach edge again, later install the expansion bolt that the spiro union has the iron wire ring, later stretch into the V-arrangement groove with the most advanced of iron wire again, at last, be scribbling mud, paste the protection film again, and pass the stay cord on the iron wire ring and fix the pivot taut can to the pivot with the protection template.

To sum up, the beneficial effect in this scheme is:

1. according to the mortar coating auxiliary device for repairing the building wall, the polishing disc and the compression spring at the end part of the electric push rod extension rod are arranged, so that when a defective wall needs to be repaired in use, the polishing disc is controlled to be close to a gap of the raw mortar of the wall, the edge of the gap is deeply polished towards the direction of a stone wall, the contact area between the raw mortar of the wall and the raw mortar filled in the later period can be increased, and the fusion effect of slurry filled in the later period and the raw mortar is improved;

2. according to the mortar coating auxiliary device for building wall restoration, the spray pipes arranged at the upper end and the lower end of the fixed box and the inclined spray pipes facing the middle part can be used for spraying and blowing a grinding part when the grinding disc is ground to generate dust when in use, and the opening positions of the upper spray pipe and the lower spray pipe can be adjusted according to the position of the grinding part away from an operator, so that the dust generated during grinding can float away from the operator;

3. according to the mortar coating auxiliary device for repairing the building wall, the roughness of the outer wall of the iron wire can be increased when the mortar coating auxiliary device is used through the arranged nodes welded on the iron wire, so that the adhesive force between the mortar coating auxiliary device and the slurry can be increased, and the slurry is more tightly contacted with the wall raw slurry;

4. this building wall restoration is with scribbling thick liquid auxiliary device through the protection template and stay cord and the pivot that set up, can be when using when needs fix the mud after having scribbled mud and prevent weighing down, can come to coil the stay cord through stirring the protruding pipe, and then will protect the template and tightly detain the surface at the wall magma to it fixes on the stone wall to ensure to scribble mud after.

Drawings

Fig. 1 is a schematic sectional view showing a mortar application auxiliary device for repairing a building wall according to the present invention;

FIG. 2 is a schematic cross-sectional view of a mortar application auxiliary device protection template for repairing a building wall according to the present invention;

FIG. 3 is a schematic structural view of a polishing disc of a coating auxiliary device for repairing a building wall according to the present invention;

FIG. 4 is a schematic perspective view of a wire ring in the auxiliary device for mortar application for repairing a building wall according to the present invention;

fig. 5 is an enlarged schematic structural view of a mortar application auxiliary device for repairing a building wall shown in fig. 2.

In the figure: 1 lifting seat, 2 spray pipes, 3 inclined spray pipes, 4 spring ropes, 5 iron sheets, 6 convex cones, 7 polishing discs, 701 sliding grooves, 702 cylindrical sinking grooves, 8 inner sliding barrels, 801 arc-shaped cutters, 802 convex blocks, 803 compression springs, 9 wall raw stock, 10 stone walls, 11 motor covers, 12T-shaped sliding blocks, 13 outer barrels, 14 electric push rods, 15 magnet blocks, 16 fans, 17 telescopic barrels, 18 fixing claws, 19 mechanical arms, 20 rotating shafts, 21V-shaped grooves, 22 poking wheels, 23 protection templates, 24 expansion bolts, 25 iron wire rings, 26 joints, 27 iron wires, 28 pull ropes, 29 fixing plates and 30 convex pipes.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-5, a building wall repair paste coating auxiliary device and a repair method thereof, comprising a wall raw paste 9 to be repaired, a stone wall 10 and a lifting seat 1, wherein the top end of the lifting seat 1 is rotatably connected with a fixed disc, the top end of the fixed disc near to two ends is respectively fixed with a mechanical arm 19 and a fixed box with a cuboid structure of a cavity inside, one side of the fixed box far away from the mechanical arm 19 is embedded with an iron sheet 5, the middle part and four corners of one side edge of the fixed box near to the iron sheet are respectively fixed with a spray pipe 2, one end of the spray pipe 2 far away from the fixed box is inserted with an inclined spray pipe 3 near to the center of the fixed box, one side of all the spray pipes 2 near to the middle part is fixed with a spring rope 4, one end of the spring rope 4 far away from the spray pipe 2 is fixed with an outer barrel 13 with a rectangular tubular structure, the inside of the outer barrel 13 is slidably connected with a motor cover 11, the middle part of one side of the motor cover 11 near to the bottom of the outer barrel 13 is fixed with an electric push rod 14, a driving motor is connected inside the motor cover 11 close to the opening in a sliding manner, a polishing disc 7 is fixed at the top end of an output shaft of the driving motor, convex cones 6 distributed in two circles at equal intervals are fixed at the circumferential edge of one side of the polishing disc 7 far away from the driving motor, six cylindrical sunken grooves 702 are formed in the circumferential outer wall of the polishing disc 7, inner sliding barrels 8 are connected to the inner walls of the cylindrical sunken grooves 702 in a sliding manner, the openings of the inner sliding barrels 8 exceed the bottoms of the cylindrical sunken grooves 702, compression springs 803 are fixed between one ends of the inner sliding barrels 8 close to the bottoms of the grooves and the bottoms of the grooves, arc-shaped cutters 801 are fixed at one ends of the inner sliding barrels 8 far away from the compression springs, all the arc-shaped cutters 801 are distributed in a central symmetry manner, and a plane where the arc-shaped cutters 801 are located has a certain included angle with the horizontal plane, so that when a deficient wall needs to be repaired, only near the gap of the polishing disc 7 in the original pulp 9 of the wall needs to be controlled first, then, the edge of the gap is deeply polished towards the stone wall 10, so that the contact area of the wall primary pulp 9 and the primary pulp filled in the later period is increased, and the fusion effect of the slurry filled in the later period and the primary pulp is improved.

In the invention, the magnet block 15 is fixed at the opening of one end of the outer barrel 13 close to the fixing box, the iron sheet 5 is embedded on the outer wall of one side of the fixing box close to the magnet block 15, the roller seats are fixed at the four corners of one side of the magnet block 15 close to the iron sheet 5, and the balls are embedded in the roller seats, so that the grinding disc 7 can always move horizontally along a plane when in use and is operated, the shoulder cutting depth of the notch can be ensured to be consistent, and the later generated bonding effect and the expansion rate can be kept consistent.

Wherein, the upper and lower both sides inner wall of outer bucket 13 is fixed with the opposite flute profile slide rail of opening respectively, and all sliding connection has tower type slider in the spout of two flute profile slide rails, is fixed with same rectangle fixed frame between two tower type sliders.

Wherein, sliding connection is formed between the inner walls of the driving motor and the motor cover 11, guide blocks are fixed on the outer walls of two opposite sides of the driving motor, a guide groove matched with the guide blocks is formed in the outer wall of the motor cover 11, and a buffer spring is fixed between the tail end of the driving motor and the bottom of the motor cover 11, so that when the polishing disc 7 is just contacted with the surface of the primary wall pulp 9 in use, the extending length of the electric push rod 14 can be directly adjusted in place, and then the polishing depth is slowly executed to the specified depth under the action of the buffer spring.

Wherein, the inner wall of fixed box is close to the middle part and is fixed with fan 16, and fan 16's air outlet has two play tuber pipes through pipe connecting piece intercommunication, and two play tuber pipes pass fixed box grafting respectively in spray tube 2 at upper and lower both ends, and the centre of two spray tubes 2 all is provided with the solenoid valve, incomplete position of mending is treated to the central line orientation of oblique spray tube 3, thereby can be when polishing dish 7 when polishing the production dust when using, oblique spray tube 3 can spout the position of polishing, and can be according to the position of polishing the position apart from the operator's position control upper and lower spray tube open the position, thereby the dust that produces when can let polishing wafts towards the direction of keeping away from the operator.

Wherein, the top of fixed disk is kept away from one side of fixed case and is passed through bolt fastening and have arm 19, and arm 19's top is fixed with flexible bucket 17, and the end fixing of flexible bucket 17 extension rod has the bracing piece that is umbelliform distribution, and the end fixing of bracing piece has stationary dog 18.

Wherein, one side that stationary dog 18 is close to the breach is fixed with protection template 23, and the rope hole that has the equidistance and distribute is opened on the surface of protection template 23, stone wall 10 is close to the inside edge of breach and opens the drilling that has the equidistance and distribute, and expansion bolts 24 has all been filled in the drilling, expansion bolts 24's double-screw bolt tip spiro union has wire ring 25, and wire ring 25 keeps away from one side circumference edge welding of stone wall 10 has the iron wire 27 that the equidistance distributes, the welding has the node 26 that the equidistance distributes on wire ring 27, thereby can increase the roughness of iron wire outer wall when using, and then can increase and the adhesive force between the mud, make the contact between mud and the wall magma inseparabler.

Wherein, one side that protection template 23 kept away from expansion bolts is provided with the serving device, and the serving device includes two parallel fixed plates 29 of each other, and rotate between two fixed plates 29 and be connected with same pivot 20, the end fixing of pivot 20 has set wheel 22, and the edge of set wheel 22 is fixed with stand pipe 30, and the inside spiro union of stand pipe 30 has fastening bolt, the one end that iron wire ring 25 is close to pivot 20 is fixed with stay cord 28, and the other end of stay cord 28 passes the rope hole and fixes on the outer wall of pivot 20, thereby can be when using when needing to fix when preventing weighing down and collapsing to the mud after having scribbled mud, can coil stay cord 28 through setting pipe 30, and then tightly detain the protection template on the surface of wall magma, fix on the stone wall with the mud after guaranteeing to scribble.

Wherein, a V-shaped groove 21 matched with the tip of the arc-shaped cutter 801 is arranged on the shoulder cutting plane of the wall original pulp 9.

A method for repairing a building wall, comprising the following operative steps: firstly, the lifting seat 1 is controlled to adjust the fixed box to be close to the same height of the repairing block, then the surface of the polishing disc 7 is attached to the surface of the primary wall pulp 9, then the extension rod of the electric push rod 14 is controlled to extend to the thickness to be drilled, then the driving motor is started again to drive the polishing disc 7 to polish along the edge of the gap, meanwhile, the inner sliding barrel 8 sliding in the cylindrical sinking groove 702 at the edge of the polishing disc 7 rotating at a high speed enables the arc-shaped cutter 801 to open a V-shaped groove 21 at the position of the cut shoulder under the action of eccentricity, after the edge of the cut is processed, drilling along the edge of the gap, installing an expansion bolt 24 screwed with an iron wire ring 25, extending the tip of an iron wire 27 into the V-shaped groove 21, coating slurry, attaching a protective film, and the pull rope 28 on the wire loop 25 is fixed on the rotating shaft 20 through the protective template 23 and is tensioned.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A building wall restoration is with scribbling thick liquid auxiliary device, includes the wall magma (9) of waiting to repair, stone wall (10) and lift seat (1), the top of lift seat (1) rotates and is connected with the fixed disk, and the top of fixed disk is close to both ends and fixes respectively mechanical arm (19) and establishes the fixed box that the cavity is the cuboid structure in, the one side that the fixed box kept away from mechanical arm (19) is inlayed and is equipped with iron sheet (5), and fixed box is close to one side edge department middle part and four corners of iron sheet and all is fixed with spray tube (2), the one end that the spray tube (2) kept away from the fixed box of one end is close to the fixed box center puts all pegs graft and is equipped with oblique spray tube (3), and one side that all spray tube (2) are close to the middle part all is fixed with spring rope (4), the one end that spring rope (4) kept away from spray tube (2) is fixed with same outer bucket (13) that are the rectangle tubulose structure, the inner part of the outer barrel (13) is connected with a motor cover (11) in a sliding manner, the middle part of one side, close to the barrel bottom of the outer barrel (13), of the motor cover (11) is fixedly provided with an electric push rod (14), the inner part of the motor cover (11) is connected with a driving motor in a sliding manner close to an opening, and the top end of an output shaft of the driving motor is fixedly provided with a polishing disc (7), the inner part of the polishing disc (7) far away from the driving motor is fixedly provided with convex cones (6) which are distributed in two circles at equal intervals, the outer wall of the circumference of the polishing disc (7) is provided with six cylindrical sunken grooves (702), the inner wall of each cylindrical sunken groove (702) is connected with an inner sliding barrel (8) in a sliding manner, the opening of each inner sliding barrel (8) exceeds the groove bottom of each cylindrical sunken groove (702), a compression spring (803) is fixedly arranged between one end, close to the groove bottom, of each inner sliding barrel (8) far away from the compression spring, and an arc-shaped cutter (801) is fixedly arranged at one end of each inner sliding barrel (8), all the arc-shaped cutters (801) are distributed in a centrosymmetric manner, and a plane where the arc-shaped cutters (801) are located has a certain included angle with a horizontal plane.

2. The building wall restoration paste coating auxiliary device according to claim 1, wherein a magnet block (15) is fixed at an opening at one end of the outer barrel (13) close to the fixing box, an iron sheet (5) is embedded in an outer wall of the fixing box close to one side of the magnet block (15), roller seats are fixed at four corners of one side of the magnet block (15) close to the iron sheet (5), and balls are embedded in the roller seats.

3. The building wall restoration paste coating auxiliary device according to claim 2, wherein the inner walls of the upper and lower sides of the outer barrel (13) are respectively fixed with groove-shaped slide rails with opposite openings, and the sliding grooves of the two groove-shaped slide rails are both connected with tower-shaped slide blocks in a sliding manner, and a same rectangular fixing frame is fixed between the two tower-shaped slide blocks.

4. The building wall restoration paste coating auxiliary device as claimed in claim 3, wherein a sliding connection is formed between the driving motor and the inner wall of the motor cover (11), guide blocks are fixed on the outer walls of two opposite sides of the driving motor, a guide groove matched with the guide blocks is formed on the outer wall of the motor cover (11), and a buffer spring is fixed between the tail end of the driving motor and the bottom of the motor cover (11).

5. The building wall restoration is with scribbling thick liquid auxiliary device according to claim 1, characterized in that, the inner wall of fixed case is close to the middle part and is fixed with fan (16), and the air outlet of fan (16) has two tuber pipes through the union coupling intercommunication, and two tuber pipes pass fixed case grafting respectively in spray tube (2) at upper and lower both ends, and the centre of two spray tubes (2) all is provided with the solenoid valve, and the central line of oblique spray tube (3) is towards the incomplete position of waiting to repair.

6. The building wall restoration is with scribbling thick liquid auxiliary device of claim 1, characterized in that, the top of fixed disk is kept away from one side of fixed case and is passed through bolt fastening has arm (19), and the top of arm (19) is fixed with flexible bucket (17), and the end fixing of the extension rod of flexible bucket (17) has the bracing piece that is umbelliform distribution, and the end fixing of bracing piece has stationary dog (18).

7. The building wall repairing paste coating auxiliary device according to claim 6, wherein a protection template (23) is fixed on one side of the fixing claw (18) close to the notch, rope holes distributed at equal intervals are formed in the surface of the protection template (23), drill holes distributed at equal intervals are formed in the edge, close to the inner portion of the notch, of the stone wall (10), expansion bolts (24) are plugged in the drill holes, an iron wire ring (25) is screwed at the end portion of a stud of each expansion bolt (24), iron wires (27) distributed at equal intervals are welded at the circumferential edge of one side, far away from the stone wall (10), of each iron wire ring (25), and nodes (26) distributed at equal intervals are welded on the iron wires (27).

8. The building wall restoration paste coating auxiliary device according to claim 7, wherein a rope winding device is arranged on one side, away from the expansion bolt, of the protection template (23), the rope winding device comprises two fixing plates (29) which are parallel to each other, the same rotating shaft (20) is rotatably connected between the two fixing plates (29), a poking wheel (22) is fixed at the end of the rotating shaft (20), a convex pipe (30) is fixed at the edge of the poking wheel (22), a fastening bolt is screwed in the convex pipe (30), a pull rope (28) is fixed at one end, close to the rotating shaft (20), of the iron wire ring (25), and the other end of the pull rope (28) penetrates through a rope hole to be fixed on the outer wall of the rotating shaft (20).

9. The building wall restoration paste coating auxiliary device according to claim 8, wherein the shoulder cutting plane of the wall original paste (9) is provided with a V-shaped groove (21) matched with the tip of the arc-shaped cutter (801).

10. A method for repairing a building wall, comprising the following operating steps: firstly, controlling a lifting seat (1) to adjust a fixed box to be close to a repair block at the same height, then enabling the surface of a polishing disc (7) to be attached to the surface of a wall raw pulp (9), then controlling an extension rod of an electric push rod (14) to extend to the thickness to be cut, then starting a driving motor to drive the polishing disc (7) to carry out polishing treatment along the edge of a gap, meanwhile, enabling an arc-shaped cutter (801) to cut a V-shaped groove (21) at the position of an opposite shoulder under the action of eccentricity of an inner sliding barrel (8) sliding in a cylindrical sinking groove (702) at the edge of the polishing disc (7) rotating at a high speed, after the edge of the gap is treated, drilling along the edge of the gap, then installing an expansion bolt (24) screwed with an iron wire ring (25), then extending the tip of an iron wire (27) into the V-shaped groove (21), and finally coating slurry, and then a protective film is pasted, and the pull rope (28) on the iron wire ring (25) passes through the protective template (23) and is fixed on the rotating shaft (20) to be tensioned.

Images