CN115637629A

CN115637629A - Pavement repairing device and repairing method thereof

Info

Publication number: CN115637629A
Application number: CN202211287308.XA
Authority: CN
Inventors: 田华
Original assignee: Hengyang Jiecheng Technology Co ltd
Current assignee: Hengyang Jiecheng Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-24

Abstract

The invention discloses a pavement repairing device and a repairing method thereof, and relates to the technical field of pavement repairing equipment. The pavement repairing device comprises a base, wherein an agitating barrel is fixedly mounted on the upper surface of the base, a suction pump is fixedly mounted at the bottom of the agitating barrel, the output end of the suction pump is fixedly connected with the bottom end of a guide pipe, and a rolling mechanism is arranged inside the base. This road surface patching device and repairing method, in order to improve the pothole department on the concrete pressfitting road surface that the concrete can be better when road surface patching, guarantee that the concrete can fill and be full, through being provided with rolling mechanism, cooperation screw drive plate with support tight spring, so that the staff can make the grinding roller keep comparatively inseparable laminating state with ground all the time according to the user demand of reality, thereby improve the effect of flattening of grinding roller, guarantee the filling of the inside concrete of highway road surface patching position and fill, reduce the quality of repairing after avoiding appearing the space.

Description

Pavement repairing device and repairing method thereof

Technical Field

The invention relates to the technical field of pavement repairing equipment, in particular to a pavement repairing device and a repairing method thereof.

Background

After a road is put into use, the road surface may be eroded to form depressions and cracks, and in this case, in order to ensure the normal use of the road, the road surface needs to be repaired, so that a road surface repairing device is used.

In the using process of the existing pavement repairing device, the stirred cement or concrete slurry is generally required to be put into a position to be repaired, and then the pavement repairing device is repaired, but in the process, it is difficult to ensure that a repairing material can be effectively filled into cracks, so that the cracks or hollow parts are easy to be free, and the subsequent highway is damaged again in the normal using process, and the existing repairing equipment does not have good continuous extrusion or pushing equipment, so that the using effect of the pavement repairing device is reduced; in view of this, we propose a road surface repairing device and a repairing method thereof.

Disclosure of Invention

Technical problem to be solved

In view of the defects of the prior art, the invention provides a pavement repair device and a repair method thereof, which solve the problems mentioned in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a road surface patching device, includes the base, the last fixed surface of base installs the agitator, the bottom fixed mounting of agitator has the suction pump, the bottom of the output fixedly connected with pipe of suction pump, the material loading mouth has been seted up at the top of agitator, the last fixed surface of base installs and pushes away the frame, the last fixed surface of base installs the control box, the inside of base is provided with rolling mechanism, rolling mechanism includes:

the driving motor is fixedly installed on the outer wall of the top of the stirring barrel, and the output end of the driving motor is fixedly connected with the top end of the rotating shaft;

the lower surface of the base is fixedly provided with the control motor, the output end of the control motor is fixedly connected with the bottom end of a control screw rod, and the outer wall of the control screw rod is in threaded connection with a threaded transmission plate;

the screw thread transmission plate penetrates through the sleeve, the sleeve is rotatably connected with the screw thread transmission plate, a sliding rod is slidably mounted on the inner wall of the bottom of the sleeve, a U-shaped frame is fixedly mounted at the bottom end of the sliding rod, and the end of a grinding roller is rotatably mounted on the inner surface of the bottom of the U-shaped frame;

the telescopic rod I is fixedly connected to the top end of the telescopic rod I on the inner wall of the top of the sleeve, and the bottom end of the telescopic rod I is fixedly connected to the top end face of the sliding rod.

Preferably, a positioning disc is arranged on the arc-shaped outer wall of the sleeve, and a sliding groove matched with the positioning disc is arranged on the inner wall of the threaded transmission plate.

Preferably, the arc-shaped outer wall of the rotating shaft is provided with a limiting strip, and the inner wall of the sleeve is provided with a limiting sliding groove matched with the limiting strip.

Preferably, the inner part of the first telescopic rod is arranged in a hollow mode, and the diameter of an inner cavity of the first telescopic rod is larger than the outer diameter of the rotating shaft.

Preferably, a strip-shaped limiting block is arranged on the arc-shaped outer wall of the sliding rod, and a limiting sliding groove matched with the strip-shaped limiting block is formed in the inner wall of the sleeve.

Preferably, the upper surface of U type frame is provided with strikes off the mechanism, strike off the mechanism including adjusting the seat, the last fixed surface of U type frame installs the bottom of adjusting the seat, the last fixed surface who adjusts the seat rotates and installs adjust knob, adjust knob's lower fixed surface installs accommodate the lead screw's top, accommodate the lead screw's outer wall threaded connection has the screw thread slider, the lower fixed surface of screw thread slider is connected with the top of telescopic link two, the upper surface of the bottom fixedly connected with transmission slider of telescopic link two, the lower fixed surface of screw thread slider is connected with the top of laminating spring, the upper surface of the bottom fixedly connected with transmission slider of laminating spring, the lower fixed surface of transmission slider is connected with the top of transfer line, the bottom mounting of transfer line has the upper surface of arc scraper blade.

Preferably, the outer surface of the threaded slider is square, and the inner surface of the adjusting seat is square matched with the outer surface of the threaded slider.

Preferably, the inside of agitator is provided with mixing mechanism, mixing mechanism is including the rotary drum, the inner wall of agitator rotates installs the rotary drum, the pivot runs through there is the driving gear, and driving gear and pivot fixed connection, the tip inner wall of rotary drum rotates installs driven gear, the pivot runs through there is the drive bevel gear, and drive bevel gear and pivot fixed connection, driven bevel gear is installed in the inner wall rotation of rotary drum, the left end of driven bevel gear's right side outer wall fixedly connected with bull stick, fixed mounting has the tip of stirring rod on the arc outer wall of bull stick.

Preferably, the end part arc-shaped inner wall of the rotary drum is provided with insections capable of being meshed with the driven gear.

A repairing method of a road surface repairing device comprises the following steps:

s1, in a concrete material preparation stage, a certain amount of clear water, cement and sand stone are put into a stirring barrel through a feeding port according to a certain proportion;

s2, in the concrete preparation stage, the controller is operated to start the driving motor so as to sufficiently stir the materials in the stirring barrel and process the materials into concrete;

s3, in a road depression material injection stage, pushing the pushing frame to enable the base to move to a target area, enabling the bottom end of the guide pipe to be aligned with a road crack or a depression, enabling concrete in the stirring barrel to be discharged to the depression of the road surface through the guide pipe by operating the control box to start the suction pump, and enabling the suction pump to stop working by operating the control box after a certain amount of concrete is discharged;

s4, repairing and filling, continuously pushing the pushing frame to enable the grinding roller to be aligned to the hollow part of the road surface, starting the control motor through the operation control box at the moment, controlling the threaded transmission plate to drive the sleeve to move downwards until the grinding roller is contacted with the ground, stopping the work of the control motor through the operation control box at the moment, simultaneously starting the driving motor, matching the rotating shaft with the sleeve to enable the sliding rod to drive the U-shaped frame to rotate, and enabling the grinding roller to fully roll and roll the concrete.

(III) advantageous effects

The invention provides a pavement repairing device and a repairing method thereof. The method has the following beneficial effects:

(1) This road surface patching device and repair method are when using, in order to improve the depression that the concrete can be better when the road surface is repaired, guarantee that the concrete can fill and fill, through being provided with rolling mechanism, cooperation screw drive plate with support tight spring, so that the staff can make the grinding roller can keep comparatively inseparable laminating state with ground all the time according to the user demand of reality, thereby improve the effect of flattening of grinding roller, guarantee the filling of the inside concrete of highway road surface repair position and fill, reduce the quality of repairing after avoiding appearing the space.

(2) This road surface patching device and repair method are when using, in order to avoid the roller its surface adhesion concrete when carrying out the roll extrusion, influence the development of subsequent continuous roll extrusion operation, strike off the mechanism through being provided with, cooperation accommodate the lead screw, so that the staff can adjust the position of screw slider according to in service behavior, thereby change the biggest deformation distance of laminating spring, and then cooperation transmission slider drives the transfer line and keeps the downward extrusion pressure degree to the arc scraper blade, so that the arc scraper blade can continuously strike off the surface of roller, guarantee the operating condition of roller.

(3) This road surface patching device and repair method are when using, in order to improve the mobility of device concrete thick liquid when carrying out highway repair, avoid it to appear the phenomenon that the deposit solidifies in the inside of agitator, through being provided with driving gear and driven gear, so that the rotary drum rotates with the lower rotational speed of the rotational speed of relative pivot, cooperate bull stick and stirring rod simultaneously, so that when carrying out the stirring on the horizontal direction to the concrete in the agitator, also can guarantee to keep better mixing state between the not concrete of same height about it, and then improve the continuous flow mobility of concrete, avoid its phenomenon that the caking appears in the inside of agitator, influence the normal use of concrete.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the enlarged portion of the area A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of a partial enlarged structure of the area B in fig. 2 according to the present invention.

In the figure: 1. a base; 2. a stirring barrel; 3. a suction pump; 4. a conduit; 5. a feeding port; 6. pushing the frame; 7. a control box; 8. a rolling mechanism; 801. a drive motor; 802. a rotating shaft; 803. controlling the motor; 804. controlling the screw rod; 805. a threaded drive plate; 806. a sleeve; 807. a slide bar; 808. a U-shaped frame; 809. rolling; 810. a first telescopic rod; 811. the spring is tightly propped; 9. a scraping mechanism; 901. an adjusting seat; 902. adjusting a knob; 903. adjusting the screw rod; 904. a threaded slider; 905. a second telescopic rod; 906. a transmission slide block; 907. fitting a spring; 908. a transmission rod; 909. an arc-shaped scraper plate; 10. a blending mechanism; 101. a driving gear; 102. a driven gear; 103. a drive bevel gear; 104. a driven bevel gear; 105. a rotating rod; 106. a stirring rod; 107. a rotating drum.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a pavement patching device and a patching method thereof, including a base 1, wherein an agitating barrel 2 is fixedly installed on the upper surface of the base 1, a suction pump 3 is fixedly installed at the bottom of the agitating barrel 2, the output end of the suction pump 3 is fixedly connected with the bottom end of a conduit 4, a feeding port 5 is formed at the top of the agitating barrel 2, a pushing frame 6 is fixedly installed on the upper surface of the base 1, a control box 7 is fixedly installed on the upper surface of the base 1, a rolling mechanism 8 is arranged inside the base 1, the rolling mechanism 8 includes a driving motor 801, a driving motor 801 is fixedly installed on the outer wall of the top of the agitating barrel 2, the output end of the driving motor 801 is fixedly connected with the top end of a rotating shaft 802, a control motor 803 is fixedly installed on the lower surface of the base 1, the output end of the control motor 803 is fixedly connected with the bottom end of a control screw rod 804, a thread driving plate 805 is connected with the outer wall thread of the control screw rod 804, the thread driving plate 805 penetrates a sleeve 806, the sleeve 806 is rotatably connected with a telescopic rod driving plate 805, a sliding rod 807 is slidably installed on the inner wall of the bottom end of the sliding rod 806, a sliding rod 807 is fixedly connected with the bottom end of a sliding rod 808, and a roller 810 is fixedly connected with the top end of a telescopic rod 808.

In an embodiment of the present invention, the control box 7 is electrically connected to an external power supply device through a wire, so as to provide an electric support for a mechanical device in the apparatus, meanwhile, a control panel is disposed inside the control box 7, in addition, the control panel is electrically connected to the suction pump 3, the driving motor 801 and the control motor 803 through wires, and the start and stop of the suction pump 3, the driving motor 801 and the control motor 803 are controlled through the control panel, further, the outer wall of the screw driving plate 805 and the inner wall of the base 1 move in a vertical direction, meanwhile, a positioning disc is disposed on the arc outer wall of the sleeve 806, and the inner wall of the screw driving plate 805 is provided with a sliding groove adapted to the positioning disc, so that the screw driving plate can drive the sleeve 806 to move in the vertical direction, further, the rotating shaft 802 penetrates through the sleeve, and meanwhile, a limiting strip is disposed on the arc outer wall of the rotating shaft 802, and the inner wall of the sleeve 806 is provided with a limiting sliding groove adapted to the limiting strip, so that the rotating shaft 802 rotates to drive the sleeve 806 to rotate, in a hollow cavity 810, and further, the inner wall of the rotating shaft 810 is provided with a hollow spring 811, and the telescopic rod 807 is capable of keeping a telescopic rod 810 tightly pressed against the telescopic rod 810, so that the telescopic rod 810 is pressed against the telescopic rod 810, thereby preventing the telescopic rod 810 from moving in a horizontal direction 810 from deforming direction, and the telescopic rod 810 from moving direction 810, and the telescopic rod 810 from deforming, thereby preventing the telescopic rod 810 from deforming, and preventing the telescopic rod from deforming, and the telescopic rod from deforming in the telescopic rod 810 from deforming direction from deforming, and preventing the telescopic rod from deforming in the telescopic rod 810 from deforming direction from deforming process from deforming, and the inner wall of the sleeve 806 is provided with a limiting sliding groove matched with the strip-shaped limiting block, so that the sliding rod 807 and the sleeve 806 can only move in the vertical direction and cannot rotate relative to the sleeve 806, and specifically, when the sleeve 806 rotates, the sliding rod 807 and the sleeve 806 rotate at the same speed and in the same direction.

In addition, in order to avoid the influence on the subsequent continuous rolling operation caused by the concrete adhered to the surface of the grinding roller 809 when rolling, a scraping mechanism 9 is arranged on the upper surface of the U-shaped frame 808, the scraping mechanism 9 comprises an adjusting seat 901, the bottom end of the adjusting seat 901 is fixedly arranged on the upper surface of the U-shaped frame 808, an adjusting knob 902 is rotatably arranged on the upper surface of the adjusting seat 901, the top end of an adjusting screw rod 903 is fixedly arranged on the lower surface of the adjusting knob 902, a threaded slider 904 is connected to the outer wall of the adjusting screw rod 903 in a threaded manner, the top end of a telescopic rod two 905 is fixedly connected to the lower surface of the threaded slider 904, the upper surface of a transmission slider 906 is fixedly connected to the bottom end of the telescopic rod two 905, the top end of a fitting spring 907 is fixedly connected to the lower surface of the fitting spring 907, the upper surface of the transmission slider 906 is fixedly connected to the lower surface of the transmission slider 906, and the top end of a transmission rod 908 is fixedly connected to the bottom end of the arc-shaped scraping plate 909.

In the embodiment of the present invention, two sets of adjusting seats 901 are provided, and the two sets of adjusting seats 901 are symmetrically disposed on the left and right sides of the U-shaped frame 808 by taking the central axis of the U-shaped frame 808 as the symmetric axis, so that the stress of the arc-shaped scraper 909 is more uniform, in addition, the outer surface of the threaded slider 904 is set to be square, and the inner surface of the adjusting seat 901 is set to be square matched with the outer surface of the threaded slider 904, so that the threaded slider 904 can only move in the vertical direction along the inner wall of the adjusting seat 901 when the adjusting screw 903 rotates, but cannot rotate along with the rotation of the adjusting screw 903, further, the inside of the telescopic rod 905 is arranged in a hollow manner, and the diameter of the inner cavity of the telescopic rod 905 is greater than the outer diameter of the adjusting screw 903, so that the adjusting screw 903 and the telescopic rod 905 do not interfere with each other, thereby ensuring the stability of the device during operation, and in the same way, a circular through hole having a diameter greater than the outer diameter of the adjusting screw 903 is formed inside of the transmission slider 906, and the adjusting screw 903 penetrates through the circular through hole, and in addition, the lower surface of the arc-shaped scraper 909 disposed to be matched with the grinding roller 809 of the grinding roller 809, so as to improve the outer surface of the grinding roller 809.

In addition, in order to improve the fluidity of the concrete slurry when the device is used for road repair and avoid the phenomenon of deposition and solidification in the stirring barrel 2, the mixing mechanism 10 is arranged in the stirring barrel 2, the mixing mechanism 10 comprises a rotating barrel 107, the rotating barrel 107 is rotatably arranged on the inner wall of the stirring barrel 2, a driving gear 101 penetrates through a rotating shaft 802, the driving gear 101 is fixedly connected with the rotating shaft 802, a driven gear 102 is rotatably arranged on the inner wall of the end part of the rotating barrel 107, a driving bevel gear 103 penetrates through the rotating shaft 802, the driving bevel gear 103 is fixedly connected with the rotating shaft 802, a driven bevel gear 104 is rotatably arranged on the inner wall of the rotating barrel 107, the outer wall of the right side of the driven bevel gear 104 is fixedly connected with the left end of a rotating rod 105, and the end part of an agitating rod 106 is fixedly arranged on the arc-shaped outer wall of the rotating rod 105.

In the embodiment of the present invention, a rotating shaft 802 penetrates through a rotating drum 107, the rotating drum 107 is rotatably connected to the rotating shaft 802, meanwhile, a driven gear 102 is engaged with a driving gear 101 to realize transmission, and an arc-shaped inner wall at an end of the rotating drum 107 is provided with a tooth pattern capable of being engaged with the driven gear 102, so that when the rotating shaft 802 rotates, the rotating drum 107 rotates at a lower rotation speed relative to the rotation speed of the rotating shaft 802 in cooperation with the driving gear 101 and the driven gear 102, specifically, a certain rotation speed difference is maintained between the rotating drum 107 and the rotating shaft 802, further, the driven bevel gear 104 is engaged with the driving bevel gear 103 to realize transmission, meanwhile, a plurality of sets of driving bevel gears 103 are provided, and the plurality of sets of driving bevel gears 103 are distributed on the rotating shaft 802 in a linear array to cooperate with the rotating rod 105 and the stirring rod 106, so that the concrete in the stirring barrel 2 can be better mixed.

In the invention, when in use, the pushing frame 6 is pushed to move the base 1 to a target area, the bottom end of the conduit 4 is aligned with a crack or a hollow of a road, at this time, the suction pump 3 is started by operating the control box 7, the concrete in the stirring barrel 2 is discharged to the hollow of the road surface through the conduit 4, after a certain amount of concrete is discharged, the suction pump 3 is stopped by operating the control box 7, at this time, the pushing device is continuously pushed to make the grinding roller 809 aligned with the hollow of the road surface, at this time, the control box 7 is operated, the control motor 803 is started, the threaded transmission plate 805 is controlled to control the sleeve 806 to move downwards until the grinding roller 809 contacts with the ground, at this time, the operation control box 7 stops the operation of the control motor 803, and at the same time, the driving motor 801 is started, the sliding rod 807 drives the U-shaped frame 808 to rotate in cooperation with the rotating shaft 802 and the sleeve 806, therefore, the grinding roller 809 can fully roll and roll the concrete, further, in order to improve the effect that the concrete can be better pressed into the hollow part of the road surface during road surface repair and ensure that the concrete can be filled and filled, the grinding roller 809 can be always kept in a relatively tight fit state with the ground according to the actual use requirement by the arrangement of the rolling mechanism 8, the screw thread driving plate 805 and the abutting spring 811 are matched, so that the quality of repair is reduced after gaps are avoided, in addition, in order to avoid the influence on the subsequent development of continuous rolling operation caused by the concrete adhered to the surface of the grinding roller 809 during rolling, by the arrangement of the scraping mechanism 9 and the matching of the adjusting screw rod 903, the position of the threaded slider 904 can be adjusted by the operator according to the use condition, therefore, the maximum deformation distance of the fitting spring 907 is changed, and the transmission slide 906 is matched to drive the transmission rod 908 to keep the downward extrusion pressure degree of the arc-shaped scraper 909, so that the arc-shaped scraper 909 can continuously scrape the surface of the grinding roller 809, the working state of the grinding roller 809 is ensured, meanwhile, in order to improve the fluidity of concrete slurry when the device is used for road repair and avoid the phenomenon that the concrete slurry is deposited and solidified in the stirring barrel 2, the driving gear 101 and the driven gear 102 are arranged, so that the rotary drum 107 rotates at a lower rotating speed relative to the rotating speed of the rotating shaft 802, and the rotary rod 105 and the stirring rod 106 are matched to stir the concrete in the stirring barrel 2 in the horizontal direction, so that a better mixing state can be kept between the concrete with different heights up and down, further, the continuous fluidity of the concrete is improved, the phenomenon that the concrete is agglomerated in the stirring barrel 2 is avoided, and the normal use of the concrete is influenced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a road surface patching device, includes base (1), the last fixed surface of base (1) installs agitator (2), the bottom fixed mounting of agitator (2) has suction pump (3), the bottom of the output end fixedly connected with pipe (4) of suction pump (3), material loading mouth (5) have been seted up at the top of agitator (2), the last fixed surface of base (1) installs and pushes away frame (6), the last fixed surface of base (1) installs control box (7), its characterized in that: the inside of base (1) is provided with rolling mechanism (8), rolling mechanism (8) include:

the stirring device comprises a driving motor (801), wherein the driving motor (801) is fixedly installed on the outer wall of the top of the stirring barrel (2), and the output end of the driving motor (801) is fixedly connected with the top end of a rotating shaft (802);

the lower surface of the base (1) is fixedly provided with the control motor (803), the output end of the control motor (803) is fixedly connected with the bottom end of a control screw rod (804), and the outer wall of the control screw rod (804) is in threaded connection with a threaded transmission plate (805);

the sleeve (806) penetrates through the threaded transmission plate (805), the sleeve (806) is rotatably connected with the threaded transmission plate (805), a sliding rod (807) is slidably mounted on the inner wall of the bottom of the sleeve (806), a U-shaped frame (808) is fixedly mounted at the bottom end of the sliding rod (807), and the end of a grinding roller (809) is rotatably mounted on the inner surface of the bottom of the U-shaped frame (808);

the top inner wall of the sleeve (806) is fixedly connected with the top end of the first telescopic rod (810), and the bottom end of the first telescopic rod (810) is fixedly connected to the top end face of the sliding rod (807).

2. The pavement patching device of claim 1, wherein: a positioning disc is arranged on the arc-shaped outer wall of the sleeve (806), and a sliding groove matched with the positioning disc is formed in the inner wall of the threaded transmission plate (805).

3. The pavement patching device of claim 1, wherein: the limiting device is characterized in that a limiting strip is arranged on the arc-shaped outer wall of the rotating shaft (802), and a limiting sliding groove matched with the limiting strip is formed in the inner wall of the sleeve (806).

4. The pavement patching device of claim 1, wherein: the inner part of the first telescopic rod (810) is arranged in a hollow mode, and the diameter of the inner cavity of the first telescopic rod (810) is larger than the outer diameter of the rotating shaft (802).

5. The pavement patching device of claim 1, wherein: a strip-shaped limiting block is arranged on the arc-shaped outer wall of the sliding rod (807), and a limiting sliding groove matched with the strip-shaped limiting block is formed in the inner wall of the sleeve (806).

6. The pavement patching device of claim 1, wherein: the scraping mechanism (9) is arranged on the upper surface of the U-shaped frame (808), the scraping mechanism (9) comprises an adjusting seat (901), the bottom end of the adjusting seat (901) is fixedly installed on the upper surface of the U-shaped frame (808), an adjusting knob (902) is rotatably installed on the upper surface of the adjusting seat (901), the top end of an adjusting screw rod (903) is fixedly installed on the lower surface of the adjusting knob (902), a threaded sliding block (904) is connected to the outer wall of the adjusting screw rod (903) in a threaded mode, a second telescopic rod (905) is fixedly connected to the lower surface of the threaded sliding block (904), the top end of a transmission sliding block (906) is fixedly connected to the bottom end of the telescopic rod (905), the top end of a fitting spring (907) is fixedly connected to the lower surface of the threaded sliding block (904), the top end of the transmission sliding block (906) is fixedly connected to the bottom end of the fitting spring (907), the top end of a transmission rod (908) is fixedly connected to the lower surface of a transmission sliding block (906), and the bottom end of an arc-shaped scraping plate (909) is fixedly connected to the bottom end of the transmission rod (907).

7. A pavement patching device as claimed in claim (6), characterized in that: the outer surface of the threaded sliding block (904) is square, and the inner surface of the adjusting seat (901) is square matched with the outer surface of the threaded sliding block (904).

8. The pavement patching device of claim 1, wherein: the inside of agitator (2) is provided with mixing mechanism (10), mixing mechanism (10) is including rotary drum (107), rotary drum (107) are installed in the inner wall rotation of agitator (2), pivot (802) run through have driving gear (101), and driving gear (101) and pivot (802) fixed connection, driven gear (102) are installed in the tip inner wall rotation of rotary drum (107), pivot (802) run through have drive bevel gear (103), and drive bevel gear (103) and pivot (802) fixed connection, driven bevel gear (104) are installed in the inner wall rotation of rotary drum (107), the left end of the right side outer wall fixedly connected with bull stick (105) of driven bevel gear (104), fixed mounting has the tip of stirring pole (106) on the arc outer wall of bull stick (105).

9. The pavement patching device of claim 8, wherein: the arc-shaped inner wall of the end part of the rotary drum (107) is provided with insections which can be meshed with the driven gear (102).

10. A method for repairing a pavement repairing apparatus, characterized in that: the method comprises the following steps:

s1, in a concrete preparation stage, a certain amount of clear water, cement and gravel are put into a stirring barrel (2) through a feeding port according to a certain proportion;

s2, in the concrete preparation stage, the controller (7) is operated to start the driving motor (801) so as to fully stir the materials in the stirring barrel (2) and process the materials into concrete;

s3, in a road depression material injection stage, pushing a pushing frame (6) to enable a base (1) to move to a target area, enabling the bottom end of a guide pipe (4) to be aligned with a road crack or a depression, enabling concrete in the stirring barrel (2) to be discharged to the depression of the road surface through the guide pipe (4) by operating a control box (7) to start a suction pump (3), and stopping the suction pump (3) by operating the control box (7) after a certain amount of concrete is discharged;

s4, in the repairing and filling stage, the pushing frame (6) is continuously pushed to enable the grinding roller (809) to be aligned to the hollow part of the road surface, at the moment, the control motor (803) is started through operating the control box (7), the threaded transmission plate (805) is controlled to drive the sleeve (806) to move downwards until the grinding roller (809) is contacted with the ground, at the moment, the control box (7) is operated to stop the work of the control motor (803), the driving motor (801) is simultaneously started, the rotating shaft (802) and the sleeve (806) are matched, the sliding rod (807) drives the U-shaped frame (808) to rotate, and therefore the grinding roller (809) can fully roll and roll the concrete.