A device and method for eliminating the need for roughening construction joints in concrete walls and columns.

Abstract

This invention discloses a device and method for eliminating the need for roughening construction joints in concrete walls and columns. The device includes a housing, a feeding anti-blocking mechanism, a conveying pipe, an adjusting conveying device, a discharge hose, a battery compartment, and a self-adjusting stone discharge device. The housing is fixedly connected to the feeding anti-blocking mechanism, which is also fixedly connected to the conveying pipe. The conveying pipe is fixedly connected to the adjusting conveying device, which is fixedly connected to the discharge hose. The battery compartment is fixedly connected to the housing, the discharge hose is fixedly connected to the housing, the discharge hose is fixedly connected to the self-adjusting stone discharge device, and the self-adjusting stone discharge device is fixedly connected to the housing. This invention relates to the field of concrete pouring construction technology. This device and method are simple to operate, flexible in construction, highly efficient, and labor-saving. The use of this method can greatly reduce the on-site roughening of construction joints, significantly reduce dust pollution caused by roughening, protect the environment, and reduce the risk of pneumoconiosis for construction workers.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring construction technology, specifically to a device and method for eliminating the need for roughening construction joints in concrete walls and columns. Background Technology

[0002] In reinforced concrete structure construction, construction joints in concrete walls and columns are a crucial aspect of the project and a key focus for engineers. During construction, due to factors such as construction conditions, materials, and design, construction joints are often necessary in walls and columns. The presence of construction joints can lead to a decrease in the strength and stability of the walls and columns; therefore, effective measures must be taken to address them.

[0003] To ensure a tight and strong bond between the old and new concrete at construction joints in walls and columns, a roughening process is commonly used. Workers use manual or electric roughening tools to create indentations in the lower layer of concrete, exposing the coarse aggregate. Then, an air pump is used to clean the surface of the construction joint before pouring the upper layer of wall and column concrete. However, traditional roughening requires manual use of chisels or drills, which is inefficient and prone to damaging the concrete structure due to improper operation. Furthermore, the difficulty in controlling the force and depth of roughening during the process leads to inconsistent quality, affecting subsequent construction. Roughening generates a large amount of concrete residue and dust, seriously impacting the construction site environment and worker health. Finally, roughening can easily damage the reinforced concrete protective layer, leading to problems such as steel corrosion and concrete cracking.

[0004] Currently, there are some construction techniques for eliminating the need for roughening concrete construction joints. These techniques involve setting up formwork-like components before concrete pouring to create a roughened construction joint. However, in actual pouring, the construction joints of walls and columns are not regular, and there are many irregularly distributed vertical reinforcing bars and stirrups at the joints. In such cases, these roughened joint devices cannot pass through the reinforcing bars, limiting their use. There is an urgent need to invent a roughened joint device and construction method that is highly adaptable, low-cost, and easy to construct. Summary of the Invention

[0005] The purpose of this invention is to provide a device and method for eliminating the need for roughening construction joints in concrete walls and columns, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a concrete wall column construction joint roughening-free device and method includes a box body, a feeding anti-blocking mechanism, a material conveying pipe, an adjusting conveying device, a discharge hose, a battery compartment, and a self-adjusting stone discharge device. The box body is fixedly connected to the feeding anti-blocking mechanism, the feeding anti-blocking mechanism is fixedly connected to the material conveying pipe, the material conveying pipe is fixedly connected to the adjusting conveying device, the adjusting conveying device is fixedly connected to the discharge hose, the battery compartment is fixedly connected to the box body, the discharge hose is fixedly connected to the box body, the discharge hose is fixedly connected to the self-adjusting stone discharge device, and the self-adjusting stone discharge device is fixedly connected to the box body.

[0007] After the lower layer of concrete column wall is poured, coarse aggregate is placed into the feeding anti-blocking mechanism. The feeding anti-blocking mechanism prevents the coarse aggregate from blocking the conveying pipe. The coarse aggregate enters the conveying pipe through the feeding anti-blocking mechanism and then enters the adjusting conveying device. The coarse aggregate completes the posture adjustment in the adjusting conveying device. The adjusting conveying device then sends the coarse aggregate through the discharge hose into the self-adjusting stone discharge device. The self-adjusting stone discharge device identifies the position of the reinforcing steel on the initial set surface of the construction joint and sprays the coarse aggregate evenly on the initial set surface.

[0008] Furthermore, the feeding anti-blocking mechanism includes an anti-blocking base, a storage hopper, a first drive motor, and a feeding turntable. The anti-blocking base is fixedly connected to the housing, the anti-blocking base is fixedly connected to the conveying pipe, the storage hopper is fixedly connected to the anti-blocking base, the first drive motor is driven by the anti-blocking base, and the feeding turntable is driven by the anti-blocking base.

[0009] Coarse aggregate is placed in the storage hopper, and the feeding turntable is driven by the first drive motor. The coarse aggregate enters the conveying pipe through the anti-blocking base. The main function of the anti-blocking base is to disperse the agglomerated coarse aggregate, so that the coarse aggregate entering the conveying pipe is in a loose sand state, thus preventing the coarse aggregate from clogging the conveying pipe.

[0010] Furthermore, the anti-blocking base includes a first outer shell, a drive shaft, a half-amplitude gear, an internal toothed wall component, a flexible hose, and a limiting seat. The first outer shell is provided with a feed hole, the flexible hose is fixedly connected to the first outer shell and is located below the feed hole, the drive shaft is drivenly connected to a first drive motor, the half-amplitude gear is drivenly connected to the drive shaft and meshes with the tooth surface of the internal toothed wall component, the limiting seat is fixedly connected to the first outer shell, the internal toothed wall component is slidably connected to the limiting seat, the flexible hose is fixedly connected to the conveying pipe, the drive shaft is drivenly connected to the feeding turntable, and the first outer shell is fixedly connected to the storage hopper.

[0011] Coarse aggregate enters the movable hose through the feed hole on the first outer shell. The first drive motor outputs torque to the drive shaft, which drives the feeding turntable and simultaneously drives the half-width gear to rotate. The half-width gear meshes with the tooth surface of the inner toothed wall component. As the half-width gear rotates, the inner toothed wall component performs horizontal linear reciprocating motion under the restriction of the limit seat. The inner toothed wall component repeatedly pushes the movable hose, shaking and dispersing the coarse aggregate passing through the movable hose.

[0012] Furthermore, the conveying device includes a second housing, a second drive motor, an output shaft, a first transmission seat, a second transmission seat, an upper feeding pulley, a lower feeding pulley, and a rocker arm mechanism. The conveying pipe is fixedly connected to the second housing, the second drive motor is fixedly connected to the second housing, the output shaft is drivenly connected to the second drive motor, the first transmission seat is drivenly connected to the output shaft, the first transmission seat and the second transmission seat are connected by belt drive, the second transmission seat is drivenly connected to the upper feeding pulley, the upper feeding pulley is rotatably connected to the second housing, the output shaft is drivenly connected to the rocker arm mechanism, the rocker arm mechanism is drivenly connected to the lower feeding pulley, the second housing is provided with an arc-shaped through groove, the side of the lower feeding pulley away from the conveying pipe is hinged to the second housing, the rocker arm mechanism is drivenly connected to the side of the lower feeding pulley away from the discharge hose, and the second housing is fixedly connected to the discharge hose.

[0013] Coarse aggregate enters the second housing through the conveying pipe. The second drive motor outputs torque to the output shaft, which drives the rocker arm mechanism to swing back and forth. The rocker arm mechanism drives the lower feeding pulley to swing back and forth around the side away from the conveying pipe. The lower feeding pulley flattens the coarse aggregate, which is close to a rhombus shape. The output shaft drives the first transmission seat to drive the second transmission seat through the belt. The second transmission seat outputs torque to drive the upper feeding pulley to transport the flattened coarse aggregate into the discharge hose.

[0014] Furthermore, the rocker arm mechanism includes a first hinge rod, an arc-groove rocker arm, a bearing component, a fixed rod, and a connecting plate. One end of the first hinge rod is drivenly connected to the output shaft, and the end of the first hinge rod away from the output shaft is rotatably connected to the bearing component. The bearing component is slidably connected to the arc-groove rocker arm, and the bearing component is drivenly connected to the side of the lower feeding pulley away from the discharge hose. The bearing component is located in an arc-shaped through groove on the second housing. The end of the arc-groove rocker arm away from the bearing component is rotatably connected to the fixed rod. The fixed rod is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the second drive motor.

[0015] The second drive motor outputs torque to the output shaft, which drives the first hinge rod to rotate. When the first hinge rod makes a circular motion around the output shaft, it drives the arc groove rocker arm to make a swaying reciprocating motion around the fixed rod. The bearing component that makes the reciprocating motion drives the lower feeding pulley to make a swaying reciprocating motion. When the lower feeding pulley moves away from the upper feeding pulley, it lays the coarse aggregate flat and then resets.

[0016] Furthermore, the self-adjusting stone discharge device includes an ejector device, an angle adjustment device, a laser probe, and a mounting component. The ejector device is fixedly connected to the discharge hose, the angle adjustment device is fixedly connected to the ejector device, the angle adjustment device is fixedly connected to the mounting component, the mounting component is fixedly connected to the housing, the laser probe is fixedly connected to the angle adjustment device, and the laser probe is connected to the ejector device via an electrical signal.

[0017] Coarse aggregate enters the self-adjusting stone discharge device through the discharge hose. The laser probe identifies the position of the reinforcing bars on the construction joint plane. Once identified, it sends an electrical signal to the angle adjustment device. The angle adjustment device adjusts the angle of the ejector head according to the electrical signal. The ejector receives the electrical signal and ejects the coarse aggregate to the construction joint plane, avoiding the reinforcing bars. This prevents the coarse aggregate from colliding with the reinforcing bars when it hits the surface, causing the coarse aggregate to bounce off and resulting in insufficient coarse aggregate laying. The ejector device ensures that the lower half of the coarse aggregate is successfully embedded in the construction joint plane, improving the firmness of the joint plane.

[0018] Furthermore, the ejection device includes an ejection chamber, a first servo motor, a worm gear, a sliding worm seat, a second hinge rod, a hinge seat, and an ejection plate. The ejection chamber is fixedly connected to the discharge hose, the first servo motor is fixedly connected to the ejection chamber, the worm gear is drivenly connected to the first servo motor, the sliding worm seat is threadedly connected to the worm gear, the second hinge rod is hinged to the sliding worm seat, the end of the second hinge rod away from the sliding worm seat is hinged to the hinge seat, the hinge seat is fixedly connected to the ejection plate, the side of the ejection plate away from the first servo motor is hinged to the ejection chamber, and the laser probe is electrically connected to the first servo motor.

[0019] After the coarse aggregate enters the ejection device, it is located in the ejection chamber. When the first servo motor receives an electrical signal, it outputs torque to the worm. The worm rotates, causing the sliding worm seat to reciprocate horizontally along the worm. When the sliding worm seat moves away from the first servo motor, the ejection plate is connected to the sliding worm seat through the second hinge rod and the hinge seat. The ejection plate rotates around the end away from the first servo motor as the center, and ejects the coarse aggregate.

[0020] Furthermore, the angle adjustment device includes a mounting bracket, a second servo motor, a third servo motor, and a connecting seat. The mounting bracket is fixedly connected to the ejection compartment, the connecting seat is fixedly connected to the mounting bracket, the third servo motor is drivenly connected to the connecting seat, the third servo motor is fixedly connected to the mounting component, and the second servo motor is drivenly connected to the mounting bracket.

[0021] The laser probe identifies and sends an electrical signal to the angle adjustment device. Based on the position of the exposed rebar on the surface of the construction joint, the second servo motor receives the electrical signal and drives the ejector to adjust the exit angle with the mounting frame as the center. The third servo motor receives the electrical signal and drives the ejector to adjust the angle with the end of the mounting piece closest to the third servo motor as the center. The combination of the two can make the exit of the ejector avoid the exposed rebar on the surface of the construction joint.

[0022] Furthermore, the construction method includes the following steps:

[0023] 1) Pouring the lower layer of concrete: Pour the lower layer of concrete at the construction joint of the wall and column, and wait for the lower layer of concrete to initially set before it begins to lose its fluidity.

[0024] 2) Add coarse aggregate to the device: Add coarse aggregate of the same particle size as the lower layer of concrete into the storage hopper of the device in advance.

[0025] 3) Coarse aggregate shotcrete initial setting surface: After the lower layer of concrete has initially set, align the ejector device of the equipment with the lower part of the concrete at the construction joint of the wall column, and spray coarse aggregate evenly on the joint surface. If there is steel reinforcement on the joint surface, it should be inserted into the steel reinforcement to ensure that the coarse aggregate is sprayed in place.

[0026] 4) Apply interface agent to the joint surface and continue pouring: Before pouring the upper layer of concrete at the construction joint of the wall column, an interface agent or interface adhesive should be applied to the joint surface of the lower construction joint and the surface of the sprayed and embedded coarse aggregate before the upper layer of concrete can be poured.

[0027] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention optimizes the anti-blocking mechanism within the coarse aggregate inlet device, ensuring that the internal pipes will not become clogged; this invention optimizes the adjustment conveying device, adjusting the posture of the coarse aggregate during conveying. Since the coarse aggregate itself is an irregular polyhedron approaching a rhombus shape, adjusting its posture flattens it, making it easier to spray onto the construction joint surface; this invention is not only suitable for treating conventional construction joint surfaces, but also highly suitable for treating wall and column construction joints with reinforced concrete; this invention uses laser recognition to identify the reinforcing steel on the construction joint surface and adjusts... The outlet angle propels the coarse aggregate onto the construction joint plane, avoiding the reinforcing bars to prevent collisions and ensure sufficient coarse aggregate placement. This ensures the lower half of the coarse aggregate is successfully embedded into the construction joint plane, improving the firmness of the joint. This device and method are simple to operate, flexible in construction, highly efficient, and labor-saving, offering significant economic benefits. Furthermore, the use of this method greatly reduces the need for on-site roughening of construction joints, significantly reducing dust pollution, protecting the environment, and lowering the risk of pneumoconiosis for construction workers. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the feeding anti-blocking mechanism of the present invention;

[0031] Figure 3 This is a schematic diagram of the anti-clogging chassis structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the adjusting conveying device of the present invention;

[0033] Figure 5 This is a schematic diagram of the self-adjusting stone dispensing device of the present invention;

[0034] Figure 6 This is a schematic diagram of the ejection device structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the angle adjustment device of the present invention;

[0036] Figure 8 This is a schematic diagram of the construction method of the present invention;

[0037] In the diagram: 1. Housing; 2. Feeding anti-blocking mechanism; 21. Anti-blocking base; 211. First outer shell; 2111. Feed hole; 212. Drive shaft; 213. Half-width gear; 214. Internal gear wall component; 215. Flexible hose; 216. Limiting seat; 22. Storage hopper; 23. First drive motor; 24. Feeding turntable; 3. Conveying pipe; 4. Adjusting conveying device; 41. Second outer shell; 411. Arc-shaped through groove; 42. Second drive motor; 43. Output shaft; 44. First transmission seat; 45. Second transmission seat; 46. Upper feeding pulley; 47. Lower feeding pulley; 48. Shaking wheel Arm mechanism; 481, First hinge rod; 482, Arc groove rocker arm; 483, Bearing component; 484, Fixed rod; 485, Connecting plate; 5, Discharge hose; 6, Battery compartment; 7, Self-adjusting stone discharge device; 71, Ejector device; 711, Ejector chamber; 712, First servo motor; 713, Worm gear; 714, Sliding worm seat; 715, Second hinge rod; 716, Hinge seat; 717, Ejector plate; 72, Angle adjustment device; 721, Mounting bracket; 722, Second servo motor; 723, Third servo motor; 724, Connecting seat; 73, Laser probe; 74, Mounting component. Detailed Implementation

[0038] 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.

[0039] The present invention provides the following technical solution:

[0040] like Figure 1As shown, the no-scraping device includes a housing 1, a feeding anti-blocking mechanism 2, a conveying pipe 3, an adjusting conveying device 4, a discharge hose 5, a battery compartment 6, and a self-adjusting stone discharge device 7. The housing 1 is fixedly connected to the feeding anti-blocking mechanism 2, the feeding anti-blocking mechanism 2 is fixedly connected to the conveying pipe 3, the conveying pipe 3 is fixedly connected to the adjusting conveying device 4, the adjusting conveying device 4 is fixedly connected to the discharge hose 5, the battery compartment 6 is fixedly connected to the housing 1, the discharge hose 5 is fixedly connected to the housing 1, the discharge hose 5 is fixedly connected to the self-adjusting stone discharge device 7, and the self-adjusting stone discharge device 7 is fixedly connected to the housing 1.

[0041] After the lower layer of concrete column wall is poured, coarse aggregate is placed into the feeding anti-blocking mechanism 2. The feeding anti-blocking mechanism 2 prevents the coarse aggregate from blocking the conveying pipe 3. The coarse aggregate enters the conveying pipe 3 through the feeding anti-blocking mechanism 2 and then enters the adjusting conveying device 4. The coarse aggregate completes the posture adjustment in the adjusting conveying device 4. The adjusting conveying device 4 then sends the coarse aggregate through the discharge hose 5 into the self-adjusting stone discharge device 7. The self-adjusting stone discharge device 7 identifies the position of the reinforcing steel on the initial set surface of the construction joint and sprays the coarse aggregate evenly on the initial set surface.

[0042] like Figure 2 As shown, the feeding anti-blocking mechanism 2 includes an anti-blocking base 21, a storage hopper 22, a first drive motor 23, and a feeding turntable 24. The anti-blocking base 21 is fixedly connected to the housing 1 and the conveying pipe 3. The storage hopper 22 is fixedly connected to the anti-blocking base 21. The first drive motor 23 is driven by the anti-blocking base 21. The feeding turntable 24 is driven by the anti-blocking base 21.

[0043] Coarse aggregate is placed into the storage hopper 22, and the first drive motor 23 drives the feeding turntable 24. The coarse aggregate passes through the anti-blocking base 21 and enters the conveying pipe 3. The main function of the anti-blocking base 21 is to disperse the agglomerated coarse aggregate, so that the coarse aggregate entering the conveying pipe 3 is in the form of loose sand, thus preventing the coarse aggregate from blocking the conveying pipe 3.

[0044] like Figure 3 As shown, the anti-blocking base 21 includes a first outer shell 211, a drive shaft 212, a half-width gear 213, an internal toothed wall component 214, a flexible hose 215, and a limiting seat 216. The first outer shell 211 is provided with a feed hole 2111. The flexible hose 215 is fixedly connected to the first outer shell 211 and is located below the feed hole 2111. The drive shaft 212 is driven by the first drive motor 23. The half-width gear 213 is driven by the drive shaft 212 and meshes with the tooth surface of the internal toothed wall component 214. The limiting seat 216 is fixedly connected to the first outer shell 211. The internal toothed wall component 214 is slidably connected to the limiting seat 216. The flexible hose 215 is fixedly connected to the conveying pipe 3. The drive shaft 212 is driven by the feeding turntable 24. The first outer shell 211 is fixedly connected to the storage hopper 22.

[0045] Coarse aggregate enters the movable hose 215 through the feed hole 2111 on the first outer shell 211. The first drive motor 23 outputs torque to the drive shaft 212. The drive shaft 212 drives the feeding turntable 24 and simultaneously drives the half-width gear 213 to rotate. The half-width gear 213 meshes with the tooth surface of the inner tooth wall component 214. As the half-width gear 213 rotates, the inner tooth wall component 214 performs horizontal linear reciprocating motion under the restriction of the limit seat 216. The inner tooth wall component 214 repeatedly pushes the movable hose 215, shaking and dispersing the coarse aggregate passing through the movable hose 215.

[0046] like Figure 4 As shown, the adjusting conveying device 4 includes a second housing 41, a second drive motor 42, an output shaft 43, a first transmission seat 44, a second transmission seat 45, an upper feeding pulley 46, a lower feeding pulley 47, and a rocker arm mechanism 48. The conveying pipe 3 is fixedly connected to the second housing 41, the second drive motor 42 is fixedly connected to the second housing 41, the output shaft 43 is driven by the second drive motor 42, the first transmission seat 44 is driven by the output shaft 43, and the first transmission seat 44 and the second transmission seat 45 are driven by a belt. The second transmission seat 45 is connected to the upper feeding pulley 46, which is rotatably connected to the second housing 41. The output shaft 43 is connected to the rocker arm mechanism 48, which is connected to the lower feeding pulley 47. The second housing 41 is provided with an arc-shaped through groove 411. The side of the lower feeding pulley 47 away from the conveying pipe 3 is hinged to the second housing 41. The rocker arm mechanism 48 is connected to the side of the lower feeding pulley 47 away from the discharge hose 5. The second housing 41 is fixedly connected to the discharge hose 5.

[0047] Coarse aggregate enters the second housing 41 through the conveying pipe 3. The second drive motor 42 outputs torque to the output shaft 43, which drives the rocker arm mechanism 48 to swing back and forth. The rocker arm mechanism 48 drives the lower feeding pulley 47 to swing back and forth around the side away from the conveying pipe 3. The lower feeding pulley 47 flattens the coarse aggregate, which is close to a rhombus shape. The output shaft 43 drives the first transmission seat 44 to drive the second transmission seat 45 through the belt. The second transmission seat 45 outputs torque to drive the upper feeding pulley 46 to transport the flattened coarse aggregate to the discharge hose 5.

[0048] like Figure 4As shown, the rocker arm mechanism 48 includes a first hinge rod 481, an arc-groove rocker arm 482, a bearing 483, a fixed rod 484, and a connecting plate 485. One end of the first hinge rod 481 is connected to the output shaft 43, and the end of the first hinge rod 481 away from the output shaft 43 is rotatably connected to the bearing 483. The bearing 483 is slidably connected to the arc-groove rocker arm 482, and the bearing 483 is connected to the side of the lower feeding pulley 47 away from the discharge hose 5. The bearing 483 is located in the arc-shaped through groove 411 on the second housing 41. The end of the arc-groove rocker arm 482 away from the bearing 483 is rotatably connected to the fixed rod 484. The fixed rod 484 is fixedly connected to the connecting plate 485, and the connecting plate 485 is fixedly connected to the second drive motor 42.

[0049] The second drive motor 42 outputs torque to the output shaft 43, which drives the first hinge rod 481 to rotate. When the first hinge rod 481 makes a circular motion with the output shaft 43 as the center, it drives the arc groove rocker arm 482 to make a swaying reciprocating motion with the fixed rod 484 as the center. The bearing 483, which makes a reciprocating motion, drives the lower feeding pulley 47 to make a swaying reciprocating motion. When the lower feeding pulley 47 moves away from the upper feeding pulley 46, it lays the coarse aggregate flat and then resets.

[0050] like Figure 5 As shown, the self-adjusting stone discharge device 7 includes an ejector device 71, an angle adjustment device 72, a laser probe 73, and a mounting component 74. The ejector device 71 is fixedly connected to the discharge hose 5, the angle adjustment device 72 is fixedly connected to the ejector device 71, the angle adjustment device 72 is fixedly connected to the mounting component 74, the mounting component 74 is fixedly connected to the housing 1, the laser probe 73 is fixedly connected to the angle adjustment device 72, and the laser probe 73 is connected to the ejector device 71 via an electrical signal.

[0051] The coarse aggregate, passing through the discharge hose 5, enters the self-adjusting stone discharge device 7. The laser probe 73 identifies the position of the reinforcing bars on the construction joint plane. Once the identification is complete, it sends an electrical signal to the angle adjustment device 72. The angle adjustment device 72 adjusts the angle of the ejector device 71 according to the electrical signal. The ejector device 71 receives the electrical signal and ejects the coarse aggregate to the construction joint plane, avoiding the reinforcing bars. This prevents the coarse aggregate from colliding with the reinforcing bars when it hits the surface, causing the coarse aggregate to bounce off and resulting in insufficient coarse aggregate laying. The ejector device 71 ensures that the lower half of the coarse aggregate is successfully embedded in the construction joint plane, improving the firmness of the construction joint plane joint.

[0052] like Figure 6As shown, the ejection device 71 includes an ejection chamber 711, a first servo motor 712, a worm gear 713, a sliding worm seat 714, a second hinge rod 715, a hinge seat 716, and an ejection plate 717. The ejection chamber 711 is fixedly connected to the discharge hose 5. The first servo motor 712 is fixedly connected to the ejection chamber 711. The worm gear 713 is drivenly connected to the first servo motor 712. The sliding worm seat 714 is threadedly connected to the worm gear 713. The second hinge rod 715 is hinged to the sliding worm seat 714. One end of the second hinge rod 715 away from the sliding worm seat 714 is hinged to the hinge seat 716. The hinge seat 716 is fixedly connected to the ejection plate 717. The side of the ejection plate 717 away from the first servo motor 712 is hinged to the ejection chamber 711. The laser probe 73 is connected to the first servo motor 712 via an electrical signal.

[0053] After the coarse aggregate enters the ejection device 71, it is located in the ejection chamber 711. When the first servo motor 712 receives an electrical signal, the first servo motor 712 outputs torque to the worm 713. The worm 713 rotates, causing the sliding worm seat 714 to move horizontally reciprocally along the worm 713. When the sliding worm seat 714 moves away from the first servo motor 712, because the ejection plate 717 and the sliding worm seat 714 are connected to the hinge seat 716 through the second hinge rod 715, the ejection plate 717 rotates with the end away from the first servo motor 712 as the center, and ejects the coarse aggregate.

[0054] like Figure 7 As shown, the angle adjustment device 72 includes a mounting frame 721, a second servo motor 722, a third servo motor 723, and a connecting seat 724. The mounting frame 721 is fixedly connected to the ejection compartment 711, the connecting seat 724 is fixedly connected to the mounting frame 721, the third servo motor 723 is drivenly connected to the connecting seat 724, the third servo motor 723 is fixedly connected to the mounting component 74, and the second servo motor 722 is drivenly connected to the mounting frame 721.

[0055] The laser probe 73 identifies and sends an electrical signal to the angle adjustment device 72. Based on the position of the exposed rebar on the surface of the construction joint, the second servo motor 722 receives the electrical signal and drives the ejector device 71 to adjust the exit angle with the mounting bracket 721 as the center. The third servo motor 723 receives the electrical signal and drives the ejector device 71 to adjust the angle with the end of the mounting piece 74 near the third servo motor 723 as the center. The combination of the two can make the exit of the ejector device 71 avoid the exposed rebar on the surface of the construction joint.

[0056] like Figure 8 As shown, the construction method includes the following steps:

[0057] 1) Pouring the lower layer of concrete: Pour the lower layer of concrete at the construction joint of the wall and column, and wait for the lower layer of concrete to initially set before it begins to lose its fluidity.

[0058] 2) Add coarse aggregate to the device: Add coarse aggregate of the same particle size as the lower layer of concrete into the storage hopper 22 of the device in advance.

[0059] 3) Coarse aggregate shotcrete initial setting surface: After the lower layer of concrete has initially set, aim the ejector device 71 of the device at the lower part of the concrete of the wall column construction joint, and spray coarse aggregate evenly on the joint surface. If there is steel reinforcement on the joint surface, it should be inserted into the steel reinforcement to ensure that the coarse aggregate is sprayed in place.

[0060] 4) Apply interface agent to the joint surface and continue pouring: Before pouring the upper layer of concrete at the construction joint of the wall column, an interface agent or interface adhesive should be applied to the joint surface of the lower construction joint and the surface of the sprayed and embedded coarse aggregate before the upper layer of concrete can be poured.

[0061] The working principle of this invention is as follows: After the lower layer of the concrete column wall is poured, coarse aggregate is placed into the storage hopper 22. The first drive motor 23 drives the feeding turntable 24 to disperse the agglomerated coarse aggregate, so that the coarse aggregate entering the conveying pipe 3 is in a loose sand-like state. The coarse aggregate enters the conveying pipe 3 through the feeding anti-blocking mechanism 2, and then enters the adjusting conveying device 4. The coarse aggregate enters the second housing 41 through the conveying pipe 3. The second drive motor 42 outputs torque to the output shaft 43. The output shaft 43 drives the rocker arm mechanism 48 to swing back and forth. The rocker arm mechanism 48 drives the lower feeding pulley 47 to swing back and forth around the side away from the conveying pipe 3. The lower feeding pulley 47 flattens the coarse aggregate, which is close to a rhombus shape. The output shaft 43 drives the first transmission seat 44 to drive the second transmission through the belt. The second transmission seat 45 outputs torque to drive the upper feeding pulley 46 to transport the flattened coarse aggregate to the discharge hose 5. The coarse aggregate passing through the discharge hose 5 enters the self-adjusting stone discharge device 7. The laser probe 73 identifies the position of the reinforcing bars on the construction joint plane. After identification, it sends an electrical signal to the angle adjustment device 72. The angle adjustment device 72 adjusts the angle of the ejector device 71 according to the electrical signal. The ejector device 71 receives the electrical signal and ejects the coarse aggregate to the construction joint plane, avoiding the reinforcing bars to prevent the coarse aggregate from colliding with the reinforcing bars when it hits the surface, causing the coarse aggregate to bounce off and resulting in insufficient coarse aggregate laying. The ejector device 71 ensures that the lower half of the coarse aggregate is successfully embedded in the construction joint plane, improving the firmness of the construction joint plane joint, and evenly spraying the coarse aggregate on the initial setting surface.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for eliminating the need for roughening construction joints in concrete walls and columns, characterized in that: The no-scraping device includes a housing (1), a feeding anti-blocking mechanism (2), a conveying pipe (3), an adjusting conveying device (4), a discharge hose (5), a battery compartment (6), and a self-adjusting stone discharge device (7). The housing (1) is fixedly connected to the feeding anti-blocking mechanism (2), the feeding anti-blocking mechanism (2) is fixedly connected to the conveying pipe (3), the conveying pipe (3) is fixedly connected to the adjusting conveying device (4), the adjusting conveying device (4) is fixedly connected to the discharge hose (5), the battery compartment (6) is fixedly connected to the housing (1), the discharge hose (5) is fixedly connected to the housing (1), the discharge hose (5) is fixedly connected to the self-adjusting stone discharge device (7), and the self-adjusting stone discharge device (7) is fixedly connected to the housing (1). The adjusting conveying device (4) includes a second housing (41), a second drive motor (42), an output shaft (43), a first transmission seat (44), a second transmission seat (45), an upper feeding pulley (46), a lower feeding pulley (47), and a rocker arm mechanism (48). The conveying pipe (3) is fixedly connected to the second housing (41), the second drive motor (42) is fixedly connected to the second housing (41), the output shaft (43) is driven by the second drive motor (42), the first transmission seat (44) is driven by the output shaft (43), and the first transmission seat (44) and the second transmission seat (45) are connected by belt drive. The second transmission seat (45) is connected to the upper feeding pulley (46) for transmission. The upper feeding pulley (46) is rotatably connected to the second housing (41). The output shaft (43) is connected to the rocker arm mechanism (48) for transmission. The rocker arm mechanism (48) is connected to the lower feeding pulley (47) for transmission. The second housing (41) is provided with an arc-shaped through groove (411). The side of the lower feeding pulley (47) away from the conveying pipe (3) is hinged to the second housing (41). The rocker arm mechanism (48) is connected to the side of the lower feeding pulley (47) away from the discharge hose (5) for transmission. The second housing (41) is fixedly connected to the discharge hose (5). The rocker arm mechanism (48) includes a first hinge rod (481), an arc groove rocker arm (482), a bearing (483), a fixed rod (484), and a connecting plate (485). One end of the first hinge rod (481) is connected to the output shaft (43) for transmission. The end of the first hinge rod (481) away from the output shaft (43) is rotatably connected to the bearing (483). The bearing (483) is slidably connected to the arc groove rocker arm (482). The bearing (483) is connected to the side of the lower feeding pulley (47) away from the discharge hose (5) for transmission. The bearing (483) is located in the arc-shaped through groove (411) on the second housing (41). The end of the arc groove rocker arm (482) away from the bearing (483) is rotatably connected to the fixed rod (484). The fixed rod (484) is fixedly connected to the connecting plate (485). The connecting plate (485) is fixedly connected to the second drive motor (42).

2. The concrete wall column construction joint roughening-free device according to claim 1, characterized in that: The feeding anti-blocking mechanism (2) includes an anti-blocking base (21), a storage hopper (22), a first drive motor (23), and a feeding turntable (24). The anti-blocking base (21) is fixedly connected to the housing (1), the anti-blocking base (21) is fixedly connected to the conveying pipe (3), the storage hopper (22) is fixedly connected to the anti-blocking base (21), the first drive motor (23) is drivenly connected to the anti-blocking base (21), and the feeding turntable (24) is drivenly connected to the anti-blocking base (21).

3. The concrete wall column construction joint roughening-free device according to claim 2, characterized in that: The anti-clogging base (21) includes a first outer shell (211), a drive shaft (212), a half-pitch gear (213), an internal gear wall component (214), a flexible hose (215), and a limiting seat (216). The first outer shell (211) has a feed hole (2111). The flexible hose (215) is fixedly connected to the first outer shell (211) and is located below the feed hole (2111). The drive shaft (212) is connected to a first drive motor (23). The half-width gear (213) is driven by the drive shaft (212), the half-width gear (213) meshes with the tooth surface of the internal tooth wall component (214), the limiting seat (216) is fixedly connected to the first outer shell (211), the internal tooth wall component (214) is slidably connected to the limiting seat (216), the movable hose (215) is fixedly connected to the conveying pipe (3), the drive shaft (212) is driven by the feeding turntable (24), and the first outer shell (211) is fixedly connected to the storage hopper (22).

4. The concrete wall and column construction joint roughening-free device according to claim 1, characterized in that: The self-adjusting stone discharge device (7) includes an ejector device (71), an angle adjustment device (72), a laser probe (73), and a mounting component (74). The ejector device (71) is fixedly connected to the discharge hose (5), the angle adjustment device (72) is fixedly connected to the ejector device (71), the angle adjustment device (72) is fixedly connected to the mounting component (74), the mounting component (74) is fixedly connected to the housing (1), the laser probe (73) is fixedly connected to the angle adjustment device (72), and the laser probe (73) is connected to the ejector device (71) via an electrical signal.

5. The concrete wall column construction joint roughening-free device according to claim 4, characterized in that: The ejection device (71) includes an ejection chamber (711), a first servo motor (712), a worm gear (713), a sliding worm seat (714), a second hinge rod (715), a hinge seat (716), and an ejection plate (717). The ejection chamber (711) is fixedly connected to the discharge hose (5), the first servo motor (712) is fixedly connected to the ejection chamber (711), the worm gear (713) is drivenly connected to the first servo motor (712), and the sliding worm seat (714) is connected to the first servo motor (712). The worm (713) is connected by a thread, the second hinge rod (715) is hinged to the sliding worm seat (714), the end of the second hinge rod (715) away from the sliding worm seat (714) is hinged to the hinge seat (716), the hinge seat (716) is fixedly connected to the ejection plate (717), the side of the ejection plate (717) away from the first servo motor (712) is hinged to the ejection chamber (711), and the laser probe (73) is connected to the first servo motor (712) by an electrical signal.

6. The concrete wall column construction joint roughening-free device according to claim 5, characterized in that: The angle adjustment device (72) includes a mounting bracket (721), a second servo motor (722), a third servo motor (723), and a connecting seat (724). The mounting bracket (721) is fixedly connected to the ejection compartment (711), the connecting seat (724) is fixedly connected to the mounting bracket (721), the third servo motor (723) is drivenly connected to the connecting seat (724), the third servo motor (723) is fixedly connected to the mounting component (74), and the second servo motor (722) is drivenly connected to the mounting bracket (721).

7. The construction method of the concrete wall column construction joint roughening-free device according to claim 1, characterized in that: The construction method includes the following steps: 1) Pour the lower layer of concrete; 2) Add coarse aggregate to the device; 3) Initial set surface of coarse aggregate shotcrete; 4) Apply interface agent to the joint surface and continue pouring.

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