Concrete surface scabbling device and method

Abstract

The invention relates to the technical field of precast concrete processing, and particularly discloses a concrete surface scabbling device and method.The concrete surface scabbling device comprises a rack, lifting frames are slidably arranged on the two sides of the interior of the rack, a scabbling frame is slidably arranged between the two lifting frames, a moving frame is slidably arranged at the front end of the scabbling frame, and a scabbling head is fixed to the front end of the moving frame; the scabbling device further comprises a lifting assembly and a pushing assembly, the lifting assembly is arranged on the inner side of the rack and used for driving the lifting frame to move up and down, and the pushing assembly is arranged in the scabbling frame and used for driving the moving frame to drive the scabbling head to move back and forth in a reciprocating mode. The corrugated bag can be extruded only when the chiseling head moves towards the rear end, so that the chiseling frame is enabled to move when the chiseling head is far away from concrete during chiseling, the chiseling frame is prevented from moving when the chiseling head moves towards the front end, and the situation that the chiseling head is similar to ploughing is avoided; and the situation that the scabbling uniformity is affected due to the fact that scabbling is seriously uneven in depth is reduced.

Description

Technical Field

[0001] This invention relates to the field of precast concrete processing technology, and in particular to a concrete surface roughening device and method. Background Technology

[0002] Roughening is a mandatory process that physically roughens the surface of smooth concrete to significantly improve its bonding ability with subsequent new materials. Reinforced concrete precast frames are a type of concrete structure system constructed by factory prefabrication and on-site assembly. They include precast columns. If the surface between the precast column and the cast-in-place structure is smooth, a weak layer is easily formed between the precast column and the concrete during installation, resulting in insufficient bonding strength. Roughening the contact surface of the precast column can remove laitance and loose layer, expose coarse aggregate, and form an uneven rough surface, which significantly improves the mechanical interlocking force and bonding strength between the old and new concrete.

[0003] For example, the patent application "CN117445205B" entitled "An Intelligent Chipping Machine for Removing Concrete Structural Surfaces" uses a loading block to fix multiple chisel sections. A motor on top of the loading block drives these multiple chisel sections to chisel the concrete surface. However, in the actual chiseling process, to ensure that every point on the concrete contact surface can be chiseled, the chisel section needs to be moved to chisel different locations. In existing technology, the chisel section is usually moved at a constant speed along a direction perpendicular to the chiseling direction. However, when the chisel section contacts the concrete and begins to strike it, if the chisel section continues to move, it will create a deep groove on the concrete surface, similar to plowing, resulting in uneven chiseling depth and affecting the uniformity of the chiseling. Summary of the Invention

[0004] The purpose of this invention is to provide a concrete surface roughening device that ensures the corrugated bag is only squeezed when the roughening head moves to the rear. This ensures that the roughening frame moves only when the roughening head is away from the concrete, thus preventing the roughening frame from moving when the roughening head moves to the front. This avoids the roughening head from creating a deep groove on the concrete surface like plowing, reducing the occurrence of uneven roughening depth and affecting the uniformity of the roughening, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concrete surface roughening device, comprising a frame, with sliding lifting frames on both sides inside the frame, a roughening frame sliding between the two lifting frames, a moving frame sliding at the front end of the roughening frame, and a roughening head fixed at the front end of the moving frame; the roughening device further includes:

[0006] The lifting assembly is located inside the frame and is used to drive the lifting frame to move up and down.

[0007] A push component, configured inside the chisel frame, is used to drive the motion frame to reciprocate the chisel head in the front-to-back direction.

[0008] The lifting assembly is configured inside the frame. The lifting assembly includes a medium frame fixedly connected to the rear end of the chiseling frame. A corrugated bladder is configured between the medium frame and the moving frame. The lifting assembly also includes a main cylinder fixedly connected to the top of both sides of the chiseling frame. A first piston is movable inside the main cylinder. A straight rod is fixed to the bottom of the first piston. The bottom of the straight rod is fixedly connected to the bottom of the inner side of the lifting frame. A connecting pipe is fixed between the corrugated bladder and the main cylinder.

[0009] Preferably, a first check valve is installed inside the connecting pipe, an inlet pipe is arranged between the bellows and the medium frame, and a second check valve is arranged inside the inlet pipe.

[0010] Preferably, a return pipe is fixedly inserted between the outside of the connecting pipe and the medium frame, located above the first check valve, and a solenoid valve is installed inside the return pipe.

[0011] Preferably, the lifting assembly includes a first motor fixedly connected to the inside of the frame, the output shaft of the first motor being fixedly connected to a screw, and the outer wall of the screw being threadedly connected to the lifting frame.

[0012] Preferably, the pushing component includes a second motor fixedly connected to the bottom of the chiseling frame, the output shaft of the second motor passing through the interior of the chiseling frame and fixed with a round shaft, a rotating disk at the top of the round shaft, a slider disposed at the eccentric position of the top of the rotating disk, a round rod rotatably connected to the top of the slider, a limiting frame fixedly connected to the rear end of the motion frame, and the round rod extending into the interior of the limiting frame.

[0013] Preferably, the return pipe is equipped with a baffle plate inside, and the baffle plate has small holes inside.

[0014] Preferably, a control component is disposed below the limiting frame. The control component includes an elastic bladder fixed inside the cylindrical shaft, and a cylinder fixed to the top of the rotating disk. A second piston moves inside the cylinder. A small shaft is fixedly connected between the second piston and the slider. A tube is fixed between the elastic bladder and the small shaft. A compression frame is fixedly connected to the rear end of the elastic bladder. The control component also includes an electric telescopic rod fixed inside the chisel frame. An arc plate is fixedly connected to the output shaft of the electric telescopic rod. A ball rotates at the rear end of the compression frame.

[0015] Preferably, a cleaning assembly is provided at the bottom of the chiseling frame. The cleaning assembly includes a brush that slides on the bottom front end of the chiseling frame. A limiting frame is fixedly connected to the rear end of the brush. Inclined blocks are fixedly fixed inside the limiting frame. A pressing frame is fixedly connected to the bottom of the limiting frame. Rotating shafts for reducing friction are rotatable on both the front and rear ends of the pressing frame.

[0016] Preferably, a flushing frame is fixed to the top front end of the chiseling frame, and a flushing hole is provided at the bottom of the flushing frame.

[0017] A method for roughening a concrete surface includes the following steps:

[0018] S1. Adjustment: The function of the lifting component is to adjust the up-and-down movement of the lifting frame so that the chisel head is moved to the bottom of the chisel surface of the precast column.

[0019] S2. Chiseling: By pushing the component, the motion frame moves back and forth along the front and back direction with the chiseling head to chisel the precast column.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Through the action of the lifting component, the corrugated bag is squeezed only when the chisel head moves to the rear end. This ensures that the chisel head moves away from the concrete during chiseling, thus preventing the chisel frame from moving when the chisel head moves to the front end. This avoids the chisel head from creating a deep groove on the concrete surface like a plow, reducing the possibility of uneven chiseling depth that affects the uniformity of chiseling.

[0022] 2. By controlling the components, the chisel head can be struck several times before the chisel frame, moving frame, and chisel head are raised, ensuring the chisel effect in certain areas and further improving the uniformity of chiseling.

[0023] 3. Through the action of the cleaning component, the brush can brush the chiseled area to remove the chiseling debris and dust produced by chiseling, preventing the chiseling debris and dust from not being completely removed and affecting the bonding strength between the chiseled surface and other cast surfaces. It can also make the limiting frame move back and forth in the left and right direction to achieve the cleaning effect of the brush shaking, thereby improving the cleaning effect of impurities. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is an overall structural view of the present invention;

[0026] Figure 2 This is a schematic diagram of the half-section structure of the present invention;

[0027] Figure 3 This is a half-sectional structural diagram of the motion frame of the present invention;

[0028] Figure 4 This is a bottom view of the chiseling frame structure of the present invention;

[0029] Figure 5 This is a top-section schematic diagram of the chiseling frame structure of the present invention;

[0030] Figure 6 This is a side view of the corrugated bag structure of the present invention;

[0031] Figure 7 This is a schematic diagram of a half-section of the circular shaft of the present invention;

[0032] Figure 8 This is a top-section structural diagram of the elastic bladder of the present invention;

[0033] Figure 9 This is a partial structural schematic diagram of the connecting pipe of the present invention;

[0034] Figure 10 This is a half-sectional structural diagram of the limiting frame of the present invention;

[0035] Figure 11 This is a partial structural diagram of the brush of the present invention;

[0036] Figure 12 This is a partial structural diagram of the limiting frame of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Frame; 2. Chisel frame; 3. Chisel head; 4. Moving frame; 5. Lifting assembly; 51. First motor; 52. Screw; 6. Pushing assembly; 61. Second motor; 62. Rotating disk; 63. Slider; 64. Round rod; 65. Restricting frame; 66. Round shaft; 7. Lifting assembly; 71. Medium frame; 72. Bellows; 73. Main cylinder; 74. First piston; 75. Straight rod; 76. Connecting pipe; 77. First check valve; 78. Inlet pipe; 79. Second check valve; 710, return pipe; 711, solenoid valve; 8, control assembly; 81, elastic bladder; 82, cylinder; 83, second piston; 84, small shaft; 85, pipe fitting; 86, compression frame; 87, electric telescopic rod; 88, arc plate; 89, ball; 9, cleaning assembly; 91, brush; 92, limiting frame; 93, tilting block; 94, squeezing frame; 95, rotating shaft; 10, lifting frame; 11, blocking plate; 12, flushing frame; 13, flushing hole. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figures 1 to 10This invention provides a technical solution: a concrete surface roughening device, including a frame 1, with sliding lifting frames 10 on both sides inside the frame 1, and a roughening frame 2 sliding between the two lifting frames 10. A moving frame 4 slides at the front end of the roughening frame 2, and a roughening head 3 is fixed at the front end of the moving frame 4. The roughening device also includes a lifting assembly 5 disposed inside the frame 1, which drives the lifting frames 10 to move up and down. The roughening device also includes a pushing assembly 6 disposed inside the roughening frame 2, which drives the moving frame 4 to reciprocate along the front-back direction with the roughening head 3. The roughening device also includes a lifting assembly 7 disposed inside the frame 1, which includes a medium frame 71 fixedly connected to the rear end inside the roughening frame 2, a corrugated bladder 72 disposed between the medium frame 71 and the moving frame 4, and the rear end of the corrugated bladder 72 fixedly connected to the rear end of the inner wall of the roughening frame 2. The lifting assembly 7 also includes a main cylinder 73 fixedly connected to the top of both sides of the roughening frame 2. The internal movement of component 3 includes a first piston 74, with a straight rod 75 fixed to the bottom of the first piston 74. The bottom of the straight rod 75 is fixedly connected to the inner bottom of the lifting frame 10. A connecting pipe 76 is fixed between the bellows 72 and the main cylinder 73. The top of the connecting pipe 76 is made of a flexible hose. The top of the medium frame 71 is closed, and a vent pipe is inserted into the top of the medium frame 71 to ensure that the medium frame 71 is connected to the external atmosphere. A first check valve 77 is installed inside the connecting pipe 76. An inlet pipe 78 is configured between the bellows 72 and the medium frame 71. A second check valve 79 is configured inside the inlet pipe 78. A return pipe 710 is fixedly inserted between the outside of the connecting pipe 76, above the first check valve 77, and the medium frame 71. A solenoid valve 711 is installed inside the return pipe 710. The lifting assembly 5 includes a first motor 51 fixedly connected to the inner side of the frame 1. The output shaft of the first motor 51 is fixedly connected to a screw 52. The outer wall of the screw 52 is threadedly connected to the lifting frame 10.

[0041] By adopting the above technical solution, in use, the precast column that needs to be roughened is clamped and fixed, and the surface of the precast column that will subsequently come into contact with the concrete is aligned with the roughening device. Through the action of the lifting component 5, the output shaft of the first motor 51 is rotated, which causes the screw 52 to rotate, thereby causing the lifting frame 10 to move up and down for adjustment, so that the roughening head 3 can be moved to the bottom of the roughened surface of the precast column. At this time, the roughening head 3 configured at the front end of the roughening frame 2 is aligned with the precast column for roughening. Through the configuration of the pushing component 6, the moving frame 4 can move the roughening head 3 back and forth in the front and back direction to roughen the precast column. In addition, under the action of the lifting component 7, the position of the roughening head 3 can be gradually raised, thereby roughening different positions of the surface of the precast column that will subsequently come into contact with the concrete.

[0042] The check valve is a mature existing technology, and its principle and installation method will not be described in detail. Under the action of the first check valve 77, the medium inside the main cylinder 73 is not allowed to flow into the bellows bladder 72. Under the action of the second check valve 79, the medium inside the bellows bladder 72 is not allowed to flow into the medium frame 71.

[0043] When the moving frame 4 moves to the rear end with the chisel head 3, the rear end of the moving frame 4 will squeeze the bellows 72, so that the medium inside the bellows 72 enters the main cylinder 73 through the connecting pipe 76 and is located above the first piston 74. Under the pressure of the medium, the first piston 74 and the straight rod 75 can move relative to the main cylinder 73. Since the bottom of the straight rod 75 is fixedly connected to the inner bottom of the lifting frame 10, the main cylinder 73 moves upward with the chisel frame 2, so that the chisel frame 2 moves upward with the moving frame 4 and the chisel head 3.

[0044] Because the medium inside the main cylinder 73 is not allowed to flow into the bellows 72 under the action of the first check valve 77, when the chisel frame 2 rises, it can prevent the medium from flowing back and causing the position of the chisel frame 2 to drop, thus preventing the chisel head 3 from falling.

[0045] When the moving frame 4 moves to the rear end with the chisel head 3, the bellows 72 is reset under its own elastic force, so that the medium inside the medium frame 71 can enter the bellows 72 through the inlet pipe 78.

[0046] This design ensures that the corrugated bag 72 is only compressed when the chisel head 3 moves to the rear. This guarantees that the chisel head 3 moves away from the concrete during chiseling, and the chisel frame 2 moves when the chisel head 3 moves to the front. This prevents the chisel head 3 from creating a deep groove on the concrete surface like a plow, reducing the possibility of uneven chiseling depth that could affect the uniformity of the chiseling process.

[0047] After the roughening of a precast column is completed, the solenoid valve 711 is opened by controlling the roughening frame 2. Under the gravity of the roughening frame 2, the medium inside the main cylinder 73 can return to the inside of the medium frame 71 through the return pipe 710. At this time, the position where the roughening frame 2 is connected to the lifting frame 10 moves to the bottom of the lifting frame 10 to achieve reset, and then the solenoid valve 711 is closed.

[0048] The pushing component 6 includes a second motor 61 fixedly connected to the bottom of the chisel frame 2. The output shaft of the second motor 61 passes through the interior of the chisel frame 2 and is fixed with a round shaft 66. The top of the round shaft 66 is a rotating disk 62. A slider 63 is disposed at the eccentric position of the top of the rotating disk 62. A round rod 64 is rotatably connected to the top of the slider 63. A limiting frame 65 is fixedly connected to the rear end of the motion frame 4. The round rod 64 extends into the interior of the limiting frame 65.

[0049] By adopting the above technical solution, when the roughening is performed, the output shaft of the second motor 61 rotates, which causes the round shaft 66 to rotate with the rotating disk 62. This causes the slider 63 and the round rod 64 located in the eccentric position to rotate around the axis of the round shaft 66. Under the pushing action of the rotation of the round rod 64, the limiting frame 65, along with the moving frame 4 and the roughening head 3, can reciprocate along the front and back direction, thereby realizing the roughening process.

[0050] The return pipe 710 is equipped with a baffle plate 11, and the baffle plate 11 has a small hole inside.

[0051] By adopting the above technical solution, the orifice diameter is configured to be relatively small. When the solenoid valve 711 is opened, the medium inside the main cylinder 73 returns to the medium frame 71 through the return pipe 710. The baffle plate 11 can play a certain blocking role, so that the medium can only pass through the orifice. This can make the falling speed of the chisel frame 2 slower, thereby avoiding damage to the mechanical parts of the device due to the falling speed of the chisel frame 2 being too fast, thus improving the service life of the device.

[0052] Below the limiting frame 65 is a control component 8. The control component 8 includes an elastic bladder 81 fixed inside a cylindrical shaft 66. The control component 8 also includes a cylinder 82 fixed to the top of a rotating disk 62. A second piston 83 moves inside the cylinder 82. A small shaft 84 is fixedly connected between the second piston 83 and the slider 63. A tube 85 is fixed between the elastic bladder 81 and the small shaft 84. A compression frame 86 is fixedly connected to the rear end of the elastic bladder 81. The control component 8 also includes an electric telescopic rod 87 fixed inside a chisel frame 2. An arc plate 88 is fixedly connected to the output shaft of the electric telescopic rod 87. A ball 89 for reducing friction rotates at the rear end of the compression frame 86. The compression frame 86 and the slider 63 are located on the same side.

[0053] By adopting the above technical solution, in order to ensure the effect of roughening, it is usually necessary to roughen the same position several times before roughening other positions. Therefore, this solution designs control component 8.

[0054] It should be noted that the rear end of the corrugated bladder 72 is fixedly connected to the rear end of the inner wall of the chisel frame 2, but there is a certain distance between the front end of the corrugated bladder 72 and the moving frame 4. When the elastic bladder 81 is not squeezed, during the process of the moving frame 4 moving back and forth under the action of the pushing component 6, the moving frame 4 will not squeeze the corrugated bladder 72, so that the chisel frame 2 will not rise at this time.

[0055] After the chisel head 3 strikes several times, the output shaft of the electric telescopic rod 87 extends, allowing the arc plate 88 to move towards the front end. During this process, when the slider 63, the round shaft 66, and the compression frame 86 rotate to the rear end position, the moving frame 4 carries the chisel head 3 towards the rear end. At this time, the compression frame 86 is limited by the arc plate 88, allowing the compression frame 86 to move closer to the elastic bladder 81 and squeeze the elastic bladder 81. This allows the medium inside the elastic bladder 81 to enter the interior of the cylinder 82 through the pipe 85, causing relative movement between the second piston 83 and the cylinder 82. At this time, the small shaft 84 pushes the slider 63 to move the round rod 64, which allows the round rod 64 to deviate further from the axis of the round shaft 66. This allows the moving frame 4 to move a greater distance towards the rear end, thereby squeezing the corrugated bladder 72.

[0056] This design allows the chisel head 3 to strike the surface several times before the chisel frame 2, along with the moving frame 4, lifts the chisel head 3, ensuring the chisel effect in specific areas and further improving the uniformity of the chisel.

[0057] It should be noted that the chisel frame 2 is equipped with a displacement sensor to facilitate the observation of the number of reciprocating movements of the motion frame 4. When the number of reciprocating movements reaches the set value, the output shaft of the electric telescopic rod 87 is extended by the external controller. After the chisel frame 2 rises, it retracts by the output shaft of the electric telescopic rod 87.

[0058] A magnetic block is fixedly connected to the side of the compression frame 86 away from the elastic bladder 81, and the side of the round shaft 66 near the compression frame 86 is made of iron material, so that when the compression frame 86 is not limited by the arc plate 88, under the action of magnetic force, the compression frame 86 can be immediately reset and will not compress the elastic bladder 81.

[0059] Example 2: The technical solution of this example differs from that of Example 1 in that: Figures 1 to 5 and Figures 11 to 12 A cleaning component 9 is provided at the bottom of the chisel frame 2. The cleaning component 9 includes a brush 91 that slides at the bottom front end of the chisel frame 2. A limiting frame 92 is fixedly connected to the rear end of the brush 91. Inclined blocks 93 are fixedly interlaced inside the limiting frame 92. A pressing frame 94 is fixedly connected to the bottom of the limiting frame 65. Rotating shafts 95 for reducing friction are rotatable on both the front and rear ends of the pressing frame 94.

[0060] By adopting the above technical solution, when the chisel frame 2 moves upward step by step, the brush 91 can brush the chiseled area to remove the chiseling slag and dust produced by chiseling, preventing the chiseling slag and dust from not being completely removed and affecting the bonding strength between the chiseled surface and other cast surfaces.

[0061] The bottom width of the extrusion frame 94 is greater than the distance between the two inclined blocks 93 on the adjacent side.

[0062] When the motion frame 4 reciprocates in the front-to-back direction, the limiting frame 65 moves in the front-to-back direction. At this time, the extrusion frame 94 moves in the front-to-back direction as well. When one side of the extrusion frame 94 extrudes the inclined block 93, the inclined block 93 moves the limiting frame 92 to that side. This allows the other side of the extrusion frame 94 to be located between two adjacent inclined blocks 93 on the other side. As the extrusion frame 94 continues to move, it can extrude the inclined block 93 on this side. This design allows the limiting frame 92 to move the brush 91 in the left-to-right direction, so that the brush 91 vibrates to clean, improving the cleaning effect of impurities.

[0063] It should be noted that the bristles of brush 91 are set to be relatively long, which can ensure sufficient cleaning of the roughened surface of the precast column.

[0064] A flushing frame 12 is fixed to the top front end of the chisel frame 2, and a flushing hole 13 is provided at the bottom of the flushing frame 12.

[0065] By adopting the above technical solution, a water inlet pipe is inserted into the inside of the flushing frame 12. The water inlet pipe introduces external water into the inside of the flushing frame 12, which allows water to spray out from the flushing holes 13. This can moisten the roughened surface of the precast column and reduce the generation of dust.

[0066] Furthermore, the addition of water can improve the cleaning effect of brush 91, thereby improving the removal of chiseled slag and dust. This can further prevent chiseled slag and dust from not being completely removed, which would affect the bonding strength between the roughened surface and other poured surfaces.

[0067] A method for roughening a concrete surface includes the following steps:

[0068] S1. Adjustment: By clamping and fixing the precast column that needs to be roughened, and aligning the surface of the precast column that will subsequently come into contact with the concrete with the roughening device, the output shaft of the first motor 51 is rotated by the action of the lifting component 5, which causes the screw 52 to rotate, thereby causing the lifting frame 10 to move up and down for adjustment, so that the roughening head 3 can be moved to the bottom of the roughened surface of the precast column. At this time, the roughening head 3 configured at the front end of the roughening frame 2 is aligned with the precast column.

[0069] S2. Chiseling: By pushing the configuration of component 6, the moving frame 4 can move back and forth along the front and back direction with the chiseling head 3 to chisel the precast column. During the processing, under the action of the lifting component 7, the position of the chiseling head 3 can be gradually raised, so as to chisel different positions on the surface of the precast column that will come into contact with concrete later.

[0070] Working principle: When the moving frame 4 moves rearward with the chisel head 3, the rear end of the moving frame 4 will compress the bellows 72, thereby causing the medium inside the bellows 72 to enter the main cylinder 73 through the connecting pipe 76, which is located above the first piston 74. Under the pressure of the medium, the first piston 74 and the straight rod 75 can move relative to the main cylinder 73. Since the bottom of the straight rod 75 is fixedly connected to the inner bottom of the lifting frame 10, the main cylinder 73 moves upward with the chisel frame 2, so that the chisel frame 2, the moving frame 4, and the chisel head 3 gradually rise. When the moving frame 4 moves rearward with the chisel head 3, the bellows 72 returns to its original position under its own elastic force, facilitating the internal flow of the medium frame 71. The medium enters the bellows 72 through the inlet pipe 78, so that the bellows 72 is only squeezed when the chisel head 3 moves to the rear end. This ensures that the chisel head 3 moves away from the concrete during chiseling, and the chisel frame 2 moves only when the chisel head 3 moves to the front end. The orifice is configured to be small in diameter. When the solenoid valve 711 is opened, the medium inside the main cylinder 73 returns to the medium frame 71 through the return pipe 710. The baffle plate 11 can play a certain blocking role, so that the medium can only pass through the orifice. This makes the falling speed of the chisel frame 2 slower, thereby avoiding damage to the mechanical parts of the device due to the falling speed of the chisel frame 2, and thus improving the service life of the device.

[0071] The rear end of the bellows 72 is fixedly connected to the rear end of the inner wall of the chisel frame 2, but there is a certain distance between the front end of the bellows 72 and the moving frame 4. When the elastic bladder 81 is not compressed, during the back-and-forth movement of the moving frame 4 under the action of the pushing component 6, the moving frame 4 will not compress the bellows 72, so that the chisel frame 2 will not rise. After the chisel head 3 strikes several times, the output shaft of the electric telescopic rod 87 extends, which can make the arc plate 88 move to the front end. During this process, when the slider 63, the round shaft 66 and the compression frame 86 rotate to the rear end position, the moving frame 4 moves the chisel head 3 to the rear end, and at this time the compression frame 86 will be limited by the arc plate 88. This allows the compression frame 86 to move closer to the elastic bladder 81, squeezing the elastic bladder 81. This allows the medium inside the elastic bladder 81 to enter the interior of the cylinder 82 through the pipe 85, causing relative movement between the second piston 83 and the cylinder 82. At this time, the small shaft 84 pushes the slider 63 to move the round rod 64, which makes the round rod 64 more away from the axis of the round shaft 66. This allows the moving frame 4 to move further to the rear end, thereby squeezing the corrugated bladder 72. This allows the chisel head 3 to strike several times before the chisel frame 2, moving frame 4, and chisel head 3 rise, ensuring the effect of local chiseling and further improving the uniformity of chiseling.

[0072] When the motion frame 4 reciprocates in the front-to-back direction, the limiting frame 65 moves in the front-to-back direction. At this time, the extrusion frame 94 moves in the front-to-back direction as well. When one side of the extrusion frame 94 extrudes the inclined block 93, the inclined block 93 moves the limiting frame 92 to that side. This allows the other side of the extrusion frame 94 to be located between two adjacent inclined blocks 93 on the other side. As the extrusion frame 94 continues to move, it can extrude the inclined block 93 on this side. This design allows the limiting frame 92 to move the brush 91 in the left-to-right direction, so that the brush 91 vibrates to clean, improving the cleaning effect of impurities.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A concrete surface roughening device, comprising a frame (1), with sliding lifting frames (10) on both sides inside the frame (1), a roughening frame (2) sliding between the two lifting frames (10), a moving frame (4) sliding at the front end of the roughening frame (2), and a roughening head (3) fixed at the front end of the moving frame (4), characterized in that, The shaving device also includes: The lifting assembly (5) is located inside the frame (1) and is used to drive the lifting frame (10) to move up and down. The push component (6) is disposed inside the chisel frame (2). The push component (6) is used to drive the motion frame (4) to reciprocate along the front-back direction with the chisel head (3). The lifting assembly (7) is located inside the frame (1). The lifting assembly (7) includes a medium frame (71) fixedly connected to the rear end of the chisel frame (2). A corrugated bladder (72) is disposed between the medium frame (71) and the moving frame (4). The lifting assembly (7) also includes a main cylinder (73) fixedly connected to the top of both sides of the chisel frame (2). A first piston (74) is movable inside the main cylinder (73). A straight rod (75) is fixed to the bottom of the first piston (74). The bottom of the straight rod (75) is fixedly connected to the bottom of the inner side of the lifting frame (10). A connecting pipe (76) is fixed between the corrugated bladder (72) and the main cylinder (73).

2. The concrete surface roughening device according to claim 1, characterized in that: A first check valve (77) is installed inside the connecting pipe (76), and an inlet pipe (78) is arranged between the bellows (72) and the medium frame (71). A second check valve (79) is arranged inside the inlet pipe (78).

3. The concrete surface roughening device according to claim 2, characterized in that: A return pipe (710) is fixedly inserted between the outside of the connecting pipe (76) and the medium frame (71), above the first check valve (77). A solenoid valve (711) is installed inside the return pipe (710).

4. A concrete surface roughening device according to claim 1, characterized in that: The lifting assembly (5) includes a first motor (51) fixedly connected to the inside of the frame (1). The output shaft of the first motor (51) is fixedly connected to a screw (52), and the outer wall of the screw (52) is threadedly connected to the lifting frame (10).

5. A concrete surface roughening device according to claim 1, characterized in that: The pushing component (6) includes a second motor (61) fixedly connected to the bottom of the chisel frame (2). The output shaft of the second motor (61) passes through the inside of the chisel frame (2) and is fixed with a round shaft (66). The top of the round shaft (66) is a rotating disk (62). A slider (63) is disposed at the top eccentric part of the rotating disk (62). A round rod (64) is rotatably connected to the top of the slider (63). A limiting frame (65) is fixedly connected to the rear end of the motion frame (4). The round rod (64) extends into the inside of the limiting frame (65).

6. A concrete surface roughening device according to claim 3, characterized in that: The return pipe (710) is equipped with a baffle plate (11), and the baffle plate (11) has a small hole inside.

7. A concrete surface roughening device according to claim 1, characterized in that: A control assembly (8) is disposed below the limiting frame (65). The control assembly (8) includes an elastic bladder (81) fixed inside a round shaft (66). The control assembly (8) also includes a cylinder (82) fixed to the top of a rotating disk (62). A second piston (83) moves inside the cylinder (82). A small shaft (84) is fixedly connected between the second piston (83) and the slider (63). A tube (85) is fixed between the elastic bladder (81) and the small shaft (84). A compression frame (86) is fixedly connected to the rear end of the elastic bladder (81). The control assembly (8) also includes an electric telescopic rod (87) fixed inside a chisel frame (2). An arc plate (88) is fixedly connected to the output shaft of the electric telescopic rod (87). A ball (89) rotates at the rear end of the compression frame (86).

8. A concrete surface roughening device according to claim 1, characterized in that: A cleaning assembly (9) is provided at the bottom of the chisel frame (2). The cleaning assembly (9) includes a brush (91) that slides at the bottom front end of the chisel frame (2). A limiting frame (92) is fixedly connected to the rear end of the brush (91). Inclined blocks (93) are fixedly interlaced inside the limiting frame (92). A pressing frame (94) is fixedly connected to the bottom of the limiting frame (65). Rotating shafts (95) for reducing friction are rotated on both the front and rear ends of the pressing frame (94).

9. A concrete surface roughening device according to claim 1, characterized in that: A flushing frame (12) is fixed to the top of the front end of the chisel frame (2), and a flushing hole (13) is provided at the bottom of the flushing frame (12).

10. A method for roughening a concrete surface, characterized in that: This method is applicable to the concrete surface roughening device according to any one of claims 1-9, and includes the following steps: S1. Adjustment: Through the action of the lifting component (5), the lifting frame (10) moves up and down to adjust, so that the chisel head (3) moves to the bottom of the precast column chisel surface; S2, Chiseling: By pushing the component (6) to make the motion frame (4) move back and forth along the front and back direction with the chiseling head (3) to chisel the precast column.

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