Concrete secondary slurry collecting device

Abstract

This invention relates to a secondary concrete finishing device, comprising a self-propelled chassis, a frame, a slurry preparation mechanism, a front hanger, a pressing and smoothing mechanism, and a roughening mechanism. The frame and slurry preparation mechanism are mounted on the self-propelled chassis, with the frame surrounding the slurry preparation mechanism. The slurry preparation mechanism includes a mixing tank and a slurry outlet pipe with a valve connected to the mixing tank. A front hanger is located at the upper front of the frame, with elastic suspension components on both sides of the front hanger. A pressing and smoothing mechanism is connected below each elastic suspension component. The pressing and smoothing mechanism includes a motor frame with a lifting handle, a pressing and smoothing motor, a drive shaft, a trowel disc, and a drill bit. The pressing and smoothing motor is housed within the motor frame and connected to the trowel disc or drill bit via the drive shaft. A vertically elastically sliding roughening mechanism is attached to the front side of the front hanger. The roughening mechanism includes a roughening plate and adjustable stabilizing wheels connected to the roughening plate. This invention offers multiple functions, allowing for individual slurry preparation, pressing, and roughening processes, or effectively integrating multiple processes.

Description

Technical Field

[0001] This invention relates to the field of civil engineering technology, and in particular to a secondary finishing device for concrete. Background Technology

[0002] To ensure the workability of concrete, it must possess a certain degree of fluidity, meaning the water content in the concrete far exceeds its required volume, with even more water remaining on the surface after it becomes cement paste. Therefore, after the initial vibration and finishing of the concrete, the surface should be finished immediately during pouring, primarily using tools such as a screed, wooden trowel, and steel trowel.

[0003] After the initial setting and before the final setting of the concrete, a power trowel is used for a second finishing process to smooth the surface. This not only prevents surface cracking but also increases the concrete's density. Especially for large precast beams, after the concrete is vibrated and poured, the top of the beam is smoothed with a wooden trowel, followed by a second finishing process before initial setting. Finally, a broom-like tool is used to roughen the surface. This allows for better bonding between the beam concrete and the bridge deck pavement concrete, further improving the overall quality of the concrete.

[0004] In practice, this work is extremely labor-intensive, often resulting in a simplistic approach or even the complete skipping of secondary finishing and troweling. Furthermore, due to inaccurate timing of finishing, manual finishing is ineffective, making it difficult to eliminate defects such as surface laitance, insufficient grout, and cracking. Once cracks form, additional grouting is required. In some cases, water is directly sprayed onto the concrete surface to create grout, a practice that is illegal, ineffective, and prone to creating quality issues. For cracks in the cement-stabilized crushed stone structure layer, the cracked area needs to be broken up, mixed with other materials, and grouted. After grouting, troweling is required again.

[0005] The aforementioned finishing process not only requires water spraying for slurry preparation, slurry application, and troweling, but may also require drilling to break up the slurry before application. The entire process is fragmented and cannot be effectively connected, with inconsistent steps between each stage. Existing trowels used for troweling are large and difficult to cover narrow areas. Furthermore, they cannot easily overcome obstacles such as embedded parts or formwork tie rods on precast beams, making operation inflexible. The trowel blades are also prone to collisions and damage. After troweling, a separate roughening operation is required, meaning the processes cannot be performed simultaneously, wasting valuable time. Summary of the Invention

[0006] To address the problem that the separate operations of grouting, pressing, and roughening are difficult to connect effectively, resulting in time-consuming and labor-intensive construction, this invention provides a secondary concrete finishing device. This device is a mechanized system that integrates grouting, pressing, breaking up, and roughening into one unit, enabling unified multi-stage construction operations. The device is also flexible and can effectively overcome obstacles.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The secondary finishing concrete device includes a self-propelled chassis, frame, slurry preparation mechanism, front hanger, pressing and smoothing mechanism, and roughening mechanism; The self-propelled chassis has a moving function. The frame and the pulping mechanism are set on the self-propelled chassis. The frame is set around the pulping mechanism and the frame fixes the pulping mechanism. The pulping mechanism includes a mixing tank and a slurry outlet pipe with a valve connected to the mixing tank. The mixing tank is used to make cement slurry, and the cement slurry flows out through the slurry outlet pipe. The front hanger is provided at the upper front of the frame, and elastic suspension components are provided on both sides of the front hanger. The elastic suspension components are elastic and can extend and retract in the vertical direction. The pressing and wiping mechanism is connected below each elastic suspension component. The front hanger can drive the pressing and wiping mechanism to slide up and down through the elastic suspension components. The pressing and wiping mechanism includes a motor frame with a lifting handle, a pressing and wiping motor, a transmission shaft, a wiping disc, and a drill bit. The lifting handle is used for manual control of the up and down movement of the pressing and wiping mechanism. The pressing and wiping motor is installed inside the motor frame, and the transmission shaft is rotatably connected inside the motor frame. The pressing and wiping motor is connected to the wiping disc or the drill bit through the transmission shaft. That is, the transmission shaft can be equipped with either a wiping disc or a drill bit. The front hanger is vertically elastically slidably connected to the texturing mechanism on its front side. The texturing mechanism can move up and down. The texturing mechanism includes a texturing plate and an adjustable stabilizing wheel connected to the texturing plate. By adjusting the height of the stabilizing wheel, the texturing plate can be controlled to control whether it contacts the concrete surface or to adjust the depth of the texturing plate's contact with the concrete surface.

[0008] Furthermore, the self-propelled chassis includes a chassis body, two-wheel axles, steering wheels, and a walking motor. The two-wheel axles and steering wheels are respectively arranged at both ends below the chassis body. The walking motor is also arranged below the chassis body. The walking motor and the two-wheel axles are chain-driven and can drive the two-wheel axles. The steering wheels are used to control the direction of movement. The two-wheel axles and the steering wheels are all wide soft rubber wheels with spring shock absorption capabilities.

[0009] Furthermore, the frame is bolted to the self-propelled chassis. The frame is a rectangular steel structure frame, and a handrail is provided at the upper rear of the frame to facilitate manual control of the movement of the device. A rubber pad is also provided on the self-propelled chassis, and the mixing tank is placed on the rubber pad to reduce the transmission of vibration when the mixing tank is working.

[0010] Further, the stirring barrel comprises a barrel body, a stirring motor and a stirring shaft, the bottom of the barrel body communicates with the slurry outlet pipe, the slurry outlet pipe extends toward the front of the frame and then bends vertically downward, an outlet of the slurry outlet pipe is located between two troweling discs, a flexible pipe is further connected to the outlet of the slurry outlet pipe, and the radiation area of the slurry outlet pipe is increased by means of the flexible pipe. The stirring motor drives the stirring shaft to stir cement slurry in the barrel body.

[0011] Further, the cross section of the front hanger is in the shape of a waist-shaped hole, the front hanger comprises an upper layer and a lower layer, and the upper layer of the front hayer is of a flat plate structure; each elastic suspension assembly comprises a limiting seat with a limiting bolt, a long adjusting rod with a plurality of adjusting holes arranged in a straight line, a long compression spring, a connecting plate, a short adjusting rod and a short compression spring; Two said limiting seats are arranged on the upper layer of the front hanger, the limiting seats are fixed, two said long adjusting rods are slidably connected between the upper layer and the lower layer of the front hanger, the long adjusting rods can slide up and down relative to the front hanger, the limiting bolt passes through any one of the adjusting holes for limiting, the long adjusting rods can be locked by the limiting bolt so as not to move, the connecting plate is slidably connected between the two long adjusting rods, the long compression spring is further sleeved on the long adjusting rods, the short adjusting rods are slidably connected on both sides of the connecting plate, and the short compression spring is sleeved on the short adjusting rods; The short adjusting rods and the long adjusting rods are both vertically arranged and are in the shape of bolts, that is, they have a large-diameter head and a small-diameter rod, the large-diameter end of the long adjusting rod faces downward, and the large-diameter end of the short adjusting rod faces upward, the two short adjusting rods are in threaded connection with the motor frame, which facilitates the connection between the elastic suspension assembly and the troweling mechanism.

[0012] Further, the troweling disc is connected to the transmission shaft, the long compression spring is sleeved on the long adjusting rod between the upper layer of the front hanger and the connecting plate, the short compression spring is sleeved on the short adjusting rod between the connecting plate and the motor frame, and the installation mode of the long compression spring and the short compression spring can enable the troweling disc to be tightly attached to the concrete surface; The drill bit is connected to the transmission shaft, the long compression spring is sleeved on the long adjusting rod between the connecting plate and the lower end of the long adjusting rod, the short compression spring is sleeved on the short adjusting rod between the connecting plate and the upper end of the short adjusting rod, and the installation mode of the long compression spring and the short compression spring can enable the drill bit to be suspended and not keep contact with the concrete surface, and the drill bit can contact the concrete surface only by manual pressing down.

[0013] Further, the motor frame is a rectangular frame, the motor frame is divided into an upper layer and a lower layer with a cross section shaped like a Chinese character "ri", the lifting handles are arranged on both layers of the motor frame, which facilitates the operation of moving the troweling mechanism up and down, the troweling motor is arranged on the upper layer of the motor frame, the lower layer of the motor frame is rotatably connected with the transmission shaft through a bearing seat, which ensures the stability of rotation of the transmission shaft, the upper end of the transmission shaft is detachably connected with the output shaft of the troweling motor, and the lower end of the transmission shaft is detachably connected with the troweling disc or the drill bit, which facilitates the replacement of the troweling disc or the drill bit; The troweling disc is disc-shaped, the edge of the troweling disc curls obliquely upward to form a disc shape with high periphery and low middle, and the drill bit is conical.

[0014] Furthermore, the textured plate is a long strip, with a height rod with a raised ring in the middle threaded to both sides. The height rod passes upward through the front hanger and is connected to a limit nut. A front compression spring is sleeved on the height rod between the front hanger and the raised ring. By adjusting the distance between the limit nut and the raised ring, the compression degree of the front compression spring can be controlled, thereby changing the height of the textured plate. The raised ring is fixed on the height rod.

[0015] Furthermore, the front middle of the textured plate tapers to form a triangular segment, which is located between the two trowels. The stabilizing wheel is arranged below the triangular segment. The stabilizing wheel is a universal wheel, and its rotation does not affect the rotation of the trowels. The stabilizing wheel has a vertical wheel rod that passes through the triangular segment. Two locking nuts are provided on the wheel rod, which clamp the triangular segment. The height of the stabilizing wheel can be changed by using the locking nuts. The rear side of the textured plate is inclined downward and bent. Several textured teeth are evenly opened on the rear side of the textured plate to form a comb shape, which facilitates the textured surface of the concrete.

[0016] The beneficial effects of the present invention through the above technical solution are: This invention features a rational structural design. The entire device relies on a self-propelled chassis and can be moved by the chassis. To reduce the impact of the device on the concrete surface during operation and ensure the flatness of the concrete surface, firstly, the wheels of the self-propelled chassis are all wide, soft rubber wheels with spring shock absorption capabilities; secondly, the mixing tank is mounted on a rubber pad; then, the pressing and smoothing mechanism is installed using an elastic suspension assembly and a front hanger; finally, the roughening mechanism is also elastically mounted on the front hanger.

[0017] The slurry preparation mechanism of the present invention can conveniently produce cement slurry. The cement slurry flows to the concrete surface through the slurry outlet pipe, and can fill cracks on the concrete surface. In other words, cement slurry can be sprayed through a hose as needed.

[0018] The front hanger of this invention connects two troweling mechanisms via an elastic suspension assembly. Through the cooperation of a long adjusting rod and adjustment holes, the troweling mechanism can be easily suspended, preventing it from contacting the ground. It also allows adjustment of the pressure applied to the concrete surface, facilitating the smoothing and elimination of cracks in the uncured concrete using a trowel. The roughening mechanism can move vertically, and the roughening plate roughens the concrete surface. Stabilizing wheels on the roughening plate improve the stability of the entire device and allow adjustment of the roughening depth. Since both the troweling and roughening mechanisms can move vertically, they can traverse obstacles such as embedded parts and formwork tie rods.

[0019] The pressing and troweling mechanism of the present invention can be equipped with a trowel or a drill bit. When the trowel is installed, the elastic suspension component presses the trowel down to make it fit tightly against the concrete surface, which can effectively compact and smooth the concrete surface. When the drill bit is installed, the elastic suspension component keeps the drill bit suspended in the air, and it only moves down when manually operated, which can break up the defective parts on the cement-stabilized crushed stone structure layer, making it easier to repair.

[0020] This invention can perform grouting, pressing, and roughening operations independently, or in combination, or sequentially. Furthermore, a grouting disc can be replaced with a drill bit, providing drilling functionality. The entire device is versatile and can flexibly carry out corresponding construction operations as needed, achieving uniformity in construction steps and improving construction efficiency. Attached Figure Description

[0021] Figure 1 This is a front view of the concrete secondary finishing device of the present invention.

[0022] Figure 2 This is a top view of the concrete secondary finishing device of the present invention.

[0023] Figure 3 This is a front view of the frame of the secondary concrete finishing device of the present invention.

[0024] Figure 4 This is a front view of the elastic suspension component of the concrete secondary finishing device of the present invention.

[0025] Figure 5 This is a front view of the pressing and troweling mechanism of the secondary concrete finishing device of the present invention.

[0026] Figure 6 This is a top view of the installation of the roughening plate and front hanger of the concrete secondary finishing device of the present invention.

[0027] Figure 7 This is a top view showing the disassembled roughening plate and front hanger of the concrete secondary finishing device of the present invention.

[0028] Figure 8 This is a schematic diagram of the installation of the drill bit and the pressing and troweling mechanism in Embodiment 2 of the concrete secondary finishing device of the present invention.

[0029] The attached diagram is labeled as follows: 1 Self-propelled chassis, 101 Chassis body, 102 Two-wheel axle, 103 Steering wheel, 104 Travel motor, 2 Frame, 3 Pulping mechanism, 31 Mixing tank, 32 Pulping pipe, 4 Front hanger, 5 Pressing and smoothing mechanism, 51 Lifting handle, 52 Motor frame, 53 Pressing and smoothing motor, 54 Drive shaft, 55 Smoothing disc, 56 Drill bit, 6 Textured surface mechanism, 61 Textured surface plate, 62 Stabilizing wheel, 7 Handrail, 8 Rubber. 91. Pad, 92. Tank body, 93. Stirring motor, 94. Stirring shaft, 15. Elastic suspension assembly, 16. Limit bolt, 17. Limit seat, 18. Adjustment hole, 19. Long adjustment rod, 10. Long compression spring, 11. Connecting plate, 12. Short adjustment rod, 13. Short compression spring, 14. Height rod, 15. Raised ring, 26. Height seat, 27. Limit nut, 28. Front compression spring, 29. Brushed teeth, 20. Triangular segment, 21. Wheel rod, 22. Locking nut, 23. Electrical control box. Detailed Implementation

[0030] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings: Example 1: like Figures 1-7 As shown, the secondary concrete finishing device includes a self-propelled chassis 1, a frame 2, a slurry preparation mechanism 3, a front hanger 4, a pressing and smoothing mechanism 5, and a roughening mechanism 6. The self-propelled chassis 1 serves as the load-bearing structure, and the frame 2, slurry preparation mechanism 3, front hanger 4, pressing and smoothing mechanism 5, and roughening mechanism 6 are all mounted on the self-propelled chassis 1 and moved by the self-propelled chassis 1.

[0031] The self-propelled chassis 1 includes a chassis body 101, two-wheel axle 102, steering wheels 103, and a walking motor 104, such as Figure 3 As shown, two wheel axles 102 and steering wheels 103 are respectively provided at both ends of the chassis body 101. The two wheel axles 102 are the driving wheels, which are wheels installed at both ends of the axle. There are two steering wheels 103, which can rotate to facilitate control of the movement direction of the self-propelled chassis 1. The steering wheels 103 are the driven wheels.

[0032] To facilitate the driving of the two-wheeled axle 102, a walking motor 104 is also installed below the chassis body 101, and the walking motor 104 and the two-wheeled axle 102 are connected by a chain drive. Driven by the walking motor 104, the two-wheeled axle 102 rotates, driving the self-propelled chassis 1 to move.

[0033] Both the two-wheel axle 102 and the steering wheel 103 are spring-loaded shock-absorbing wheels, which have a certain shock absorption capacity and can reduce the transmission of vibration to the concrete surface. At the same time, the wheels in the two-wheel axle 102 and the steering wheel 103 are made of wide soft rubber wheels to reduce indentations on the concrete surface.

[0034] The self-propelled chassis 1 is equipped with a frame 2 and a pulping mechanism 3, meaning that the chassis body 101 directly supports the frame 2 and the pulping mechanism 3. The frame 2 is a rectangular steel structure frame. During installation, the frame 2 is bolted to the chassis body 101, thereby ensuring that the frame 2 and the chassis body 101 are connected as one unit.

[0035] To facilitate the movement of the self-propelled chassis 1, a handrail 7 is provided at the upper rear of the frame 2. Since the frame 2 and the chassis body 101 are connected and fixed, the movement direction of the self-propelled chassis 1 can be flexibly controlled by operating the handrail 7.

[0036] The frame 2 houses a slurry-making mechanism 3, which is constrained by the frame 2. The function of the slurry-making mechanism 3 is to produce cement slurry, which is then used to fill and repair cracked concrete surfaces. The slurry-making mechanism 3 includes a mixing tank 31 and a slurry outlet pipe 32 with a valve connected to the mixing tank 31. During installation, a rubber pad 8 is also installed on the self-propelled chassis 1, with the mixing tank 31 positioned on the rubber pad 8 to reduce the vibration transmitted to the self-propelled chassis 1 during the operation of the slurry-making mechanism 3.

[0037] The mixing tank 31 includes a tank body 91, a mixing motor 92, and a mixing shaft 93, such as Figure 1 As shown. The upper part of the barrel 91 is open, and a mixing motor 92 is installed above the barrel 91. A mixing shaft 93 is rotatably connected inside the barrel 91. The mixing motor 92 and the mixing shaft 93 are connected, and the mixing motor 92 drives the mixing shaft 93 to rotate to uniformly mix the cement slurry. The bottom of the barrel 91 is connected to the slurry outlet pipe 32. The slurry outlet pipe 32 extends forward towards the frame 2 and then bends vertically downward, that is, the slurry outlet pipe 32 is bent into an "L" shape. The outlet of the slurry outlet pipe 32 faces downward, that is, towards the concrete surface. When the valve on the slurry outlet pipe 32 is opened, the prepared cement slurry can flow out through the slurry outlet pipe 32.

[0038] Without moving the self-propelled chassis 1, a flexible hose is connected to the outlet of the grout pipe 32 to facilitate increasing the spreading range of the cement grout. The cement grout can flow out through the hose. With the help of the hose, the range of the grout pipe 32 is effectively increased, and the cement grout can be flexibly filled into the cracked concrete surface by manual operation of the hose.

[0039] A front hanger 4 is installed at the upper front of the frame 2. The front hanger 4 supports the pressing and smoothing mechanism 5 and the texturing mechanism 6. The front hanger 4 has an oblong cross-section and consists of upper and lower layers. The upper layer of the front hanger 4 is a flat plate structure, and corresponding components can be installed on the upper layer of the front hanger 4, such as... Figure 2 As shown.

[0040] Two sets of elastic suspension components 10 are respectively installed on both sides of the front hanger 4. Each elastic suspension component 10 can slide elastically up and down. A pressing mechanism 5 is connected below each set of elastic suspension components 10. The front hanger 4 can drive the pressing mechanism 5 to slide up and down via the elastic suspension components 10. The slurry outlet pipe 32 is located between the two pressing mechanisms 5. Figure 1 As shown.

[0041] Each set of elastic suspension components 10 includes a limiting seat 12 with a limiting bolt 11, a long adjusting rod 14 with multiple adjusting holes 13 arranged in a straight line, a long compression spring 15, a connecting plate 16, a short adjusting rod 17, and a short compression spring 18, such as Figure 4 As shown.

[0042] Two limiting seats 12 are provided on the upper layer of each side of the front suspension 4, that is, there are two limiting seats 12 in a set of elastic suspension components 10. The position of the limiting seats 12 is fixed, and the limiting bolts 11 and the limiting seats 12 are threadedly connected.

[0043] Two long adjusting rods 14 slide between the upper and lower layers of the front suspension 4. That is, there are two long adjusting rods 14 within a set of elastic suspension components 10. The long adjusting rods 14 are vertically arranged and can move up and down along the front suspension 4. The long adjusting rod 14 is bolt-shaped, consisting of a head and a rod section. The diameter of the head is larger than the diameter of the rod section. The head of the long adjusting rod 14 is located at the lower end, below the front suspension 4. Adjustment holes 13 are provided on the rod section of the long adjusting rod 14. Once the limiting bolt 11 passes through either adjustment hole 13, the long adjusting rod 14 is limited and can no longer slide up or down.

[0044] A connecting plate 16 slides between the two long adjusting rods 14, meaning the connecting plate 16 can slide up and down along the two long adjusting rods 14. A long compression spring 15 is also fitted on the long adjusting rods 14. The long compression spring 15 can be fitted on the long adjusting rods 14 above the connecting plate 16 or on the long adjusting rods 14 below the connecting plate 16, depending on the different working scenarios.

[0045] Two short adjusting rods 17 are slidably connected to both sides of the connecting plate 16, positioned between two long adjusting rods 14. The short adjusting rods 17 are vertically arranged, passing longitudinally through the connecting plate 16 and remaining parallel to the long adjusting rods 14. The short adjusting rods 17 can move up and down along the connecting plate 16. The short adjusting rods 17 are also bolt-shaped, including a head and a rod section. The diameter of the head is larger than the diameter of the rod section. The head of the short adjusting rod 17 is located above the connecting plate 16, indicating that the short adjusting rods 17 and long adjusting rods 14 face opposite directions.

[0046] A short compression spring 18 is fitted on the short adjustment rod 17. The short compression spring 18 can be fitted on the short adjustment rod 17 above the connecting plate 16 or on the short adjustment rod 17 below the connecting plate 16, depending on different working scenarios. However, the fitting positions of the short compression spring 18 and the long compression spring 15 are related.

[0047] The elastic suspension assembly 10 is detachably connected to the troweling mechanism 5 via two short adjusting rods 17. The troweling mechanism 5 includes a motor frame 52 with a lifting handle 51, a troweling motor 53, a drive shaft 54, a trowel disc 55, and a drill bit 56. The short adjusting rods 17 are threadedly connected to the motor frame 52. Figure 5 As shown.

[0048] The motor frame 52 is a rectangular frame, and the motor frame 52 is divided into upper and lower layers. Both layers of the motor frame 52 are equipped with lifting handles 51. There are two lifting handles 51 on each layer. The cross-section of the lifting handles 51 is "[". The lifting handles 51 on the upper and lower layers are staggered. The motor frame 52 can be moved up and down by lifting the lifting handles 51.

[0049] A pressure trowel motor 53 is installed inside the motor frame 52, meaning the pressure trowel motor 53 is installed on the upper layer of the motor frame 52. A drive shaft 54 ​​is rotatably connected inside the motor frame 52, meaning the drive shaft 54 ​​is rotatably connected on the lower layer of the motor frame 52, ensuring the stability of the rotation of the drive shaft 54. The pressure trowel motor 53 is connected to a trowel disc 55 or a drill bit 56 via the drive shaft 54, meaning that the trowel disc 55 or the drill bit 56 can be selected for installation according to different working conditions.

[0050] During installation, the upper end of the drive shaft 54 ​​is detachably connected to the output shaft of the pressure trowel motor 53. Specifically, the upper end of the drive shaft 54 ​​is threadedly connected to the output shaft of the pressure trowel motor 53, and a fastening pin is provided between them. The lower end of the drive shaft 54 ​​is detachably connected to the trowel disc 55 or the drill bit 56. The specific installation method is as described above and will not be repeated here. The trowel disc 55 is disc-shaped, with its edges inclined upwards and curled to form a disc shape that is high around the edges and low in the center; the drill bit 56 is conical.

[0051] The front hanger 4 has a vertically elastic sliding joint with a roughening mechanism 6. The roughening mechanism 6, the pressing mechanism 5, and the slurry making mechanism 3 are arranged in sequence. The roughening mechanism 6 includes a roughening plate 61 and a stabilizing wheel 62 that is adjustablely connected to the roughening plate 61. The roughening plate 61 is used to roughen the concrete surface. The roughening plate 61 can move up and down along the front hanger 4. When it moves, the stabilizing wheel 62 moves with it. The height of the stabilizing wheel 62 relative to the roughening plate 61 can be adjusted independently.

[0052] The textured plate 61 is a long strip. Both sides of the textured plate 61 are threaded with height rods 19, each with a raised ring 191 in the middle. To facilitate the installation of the height rods 19, two height seats 20 are installed on the lower side wall of the front hanger 4. The height rods 19 pass upwards through the height seats 20 on the front hanger 4 and are connected to limit nuts 21. A front compression spring 22 is fitted on the height rods 19 between the front hanger 4 and the raised ring 191. Therefore, under the action of the front compression spring 22, the height rods 19 cause the textured plate 61 to always have a downward tendency to move. Figure 6 and Figure 7 As shown.

[0053] The rear side of the textured plate 61 is bent downwards at an angle, and several textured teeth 23 are evenly distributed on the rear side of the textured plate 61. These textured teeth 23 form a comb-like shape and can roughen the concrete surface. In order to facilitate the installation of the stabilizing wheel 62, the front middle of the textured plate 61 is tapered to form a triangular segment 24. The triangular segment 24 is located between the two pressing mechanisms 5, and the stabilizing wheel 62 is arranged below the triangular segment 24. The stabilizing wheel 62 is a universal wheel made of wide soft rubber.

[0054] Meanwhile, to facilitate the adjustment of the height of the stabilizing wheel 62, a vertical wheel rod 25 is provided on the stabilizing wheel 62. The wheel rod 25 passes through the triangular segment 24, and two locking nuts 26 are provided on the wheel rod 25. The locking nuts 26 cooperate to clamp the triangular segment 24, which not only realizes the installation and fixation of the stabilizing wheel 62, but also facilitates the adjustment of the height of the stabilizing wheel 62. By adjusting the height of the stabilizing wheel 62, the degree to which the roughened teeth 23 penetrate into the concrete surface can be controlled.

[0055] In this embodiment, trowel discs 55 are connected to the drive shafts 54 of both troweling mechanisms 5. The outlet of the grout pipe 32 is located between the two trowel discs 55, and the triangular segment 24 is located between the two trowel discs 55. At this time, the long compression spring 15 is sleeved on the long adjusting rod 14 between the upper layer of the front hanger 4 and the connecting plate 16, and the short compression spring 18 is sleeved on the short adjusting rod 17 between the connecting plate 16 and the motor frame 52. Under the dual action of the long compression spring 15 and the short compression spring 18, the trowel discs 55 are made to fit tightly against the concrete surface, thus achieving troweling.

[0056] In this embodiment, an electrical control box 27 is also installed on the frame 2, located below the handrail 7. The motors in the pulping mechanism 3, the self-propelled chassis 1, and the pressing and smoothing mechanism 5 are all connected to this electrical control box 27 to control the operation of the stirring motor 92, the traveling motor 104, and the pressing and smoothing motor 53. Simultaneously, the valve on the pulp outlet pipe 32 can be an electrically controlled valve, connected to the electrical control box 27, to control the opening and closing of the pulp outlet pipe 32.

[0057] This invention offers diverse functions: With the self-propelled chassis 1 providing the driving force, the trowel disc 55 of the pressing and smoothing mechanism 5 can be rotated independently to compact and smooth the concrete surface or smooth cracks, while the roughening mechanism 6 remains in contact with the concrete surface. Alternatively, while the trowel disc 55 rotates, the valve on the grout outlet pipe 32 can be opened, allowing the cement grout prepared in the mixing tank 31 to flow out and fill cracks in the concrete surface. Then, the trowel disc 55 can be used for compaction and smoothing, achieving simultaneous grouting and smoothing. Furthermore, while the trowel disc 55 rotates, the limiting nut 21 can be loosened to allow the roughening teeth 23 to move downwards and contact the concrete surface, achieving simultaneous smoothing and roughening. It can even simultaneously perform grouting, compaction, smoothing, and roughening operations.

[0058] When it is necessary to cross obstacles such as embedded parts or template tie rods, the elastic suspension component 10 can be moved upward first, thereby driving the pressing and smoothing mechanism 5 to move upward as a whole, and the roughening mechanism 6 to move upward at the same time. After crossing the obstacle, it can be lowered. If the obstacle such as the embedded part is low, the elastic suspension component 10 itself has an elastic lifting function, which can directly lift the trowel 55 to cross the obstacle.

[0059] This invention mitigates the impact of equipment operation on the concrete surface through several measures: 1. Wide, soft rubber wheels with spring damping function; 2. The mixing drum 31 rests on a rubber pad 8; 3. The pressing mechanism 5 is mounted on the elastic suspension assembly 10; 4. The roughening mechanism 6 and the front hanger 4 are elastically slidably connected. Furthermore, rubber spacers can be installed at the joint between the height bar 19 and the height seat 20, and also at the joint between the long adjusting rod 14 and the upper part of the front hanger 4, to reduce the transmission of vibration.

[0060] Example 2: This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The differences are as follows: Figure 8 As shown, in this embodiment, a trowel 55 is mounted on the drive shaft 54 ​​of one troweling mechanism 5, and a drill bit 56 is mounted on the drive shaft 54 ​​of the other troweling mechanism 5. The installation method is also a threaded connection combined with a fastening pin, thus the present invention has the dual functions of compaction and troweling, as well as drilling. Unlike the installation of the trowel 55, once the drill bit 56 is connected to the drive shaft 54, it is necessary to change the installation position of the long compression spring 15 and the short compression spring 18. Specifically, the long compression spring 15 is sleeved on the long adjusting rod 14 between the connecting plate 16 and the lower end of the long adjusting rod 14, and the short compression spring 18 is sleeved on the short adjusting rod 17 between the connecting plate 16 and the upper end of the short adjusting rod 17.

[0061] Under the action of the long compression spring 15 and the short compression spring 18, the pressing and troweling mechanism 5 that mounts the drill bit 56 will be lifted and moved upward, so that the drill bit 56 will not contact the ground, which facilitates the movement of the self-propelled chassis 1.

[0062] The pressing and troweling mechanism 5 with drill bit 56 can be used to address localized surface segregation, dryness, and looseness that occur during the paving of cement-stabilized crushed stone structural layers. The pressing and troweling mechanism 5 is moved downward by manually operating the lifting handle 51, and the rotating drill bit 56 is used to break up the defective areas, mix in some fine materials, and then spray an appropriate amount of cement slurry through the slurry outlet pipe 32. Finally, the troweling plate 55 is used to level the surface and re-compact it. This process is a combination of the drill bit 56, the troweling plate 55, and the slurry making mechanism 3.

[0063] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present invention should be included within the scope of the present invention.

Claims

1. Concrete secondary slurry collecting device, characterized in that, It includes a self-propelled chassis (1), a frame (2), a pulping mechanism (3), a front hanger (4), a pressing and smoothing mechanism (5), and a texturing mechanism (6); The frame (2) and the pulping mechanism (3) are provided on the self-propelled chassis (1). The frame (2) is provided around the pulping mechanism (3). The pulping mechanism (3) includes a mixing tank (31) and a pulp outlet pipe (32) with a valve connected to the mixing tank (31). The front hanger (4) is provided at the upper front of the frame (2). Elastic suspension components (10) are provided on both sides of the front hanger (4). The pressing and wiping mechanism (5) is connected below each elastic suspension component (10). The front hanger (4) drives the pressing and wiping mechanism (5) to slide up and down through the elastic suspension components (10). The pressing and wiping mechanism (5) includes a motor frame (52) with a lifting handle (51), a pressing and wiping motor (53), a transmission shaft (54), a wiping disc (55), and a drill bit (56). The pressing and wiping motor (53) is installed inside the motor frame (52), and the transmission shaft (54) is rotatably connected inside the motor frame (52). The pressing and wiping motor (53) is connected to the wiping disc (55) or the drill bit (56) through the transmission shaft (54). The front suspension bracket (4) has a waist-shaped hole in cross section. The front suspension bracket (4) includes two layers, with the upper layer being a flat plate structure. Each elastic suspension component (10) includes a limiting seat (12) with a limiting bolt (11), a long adjusting rod (14) with multiple adjusting holes (13) arranged in a straight line, a long compression spring (15), a connecting plate (16), a short adjusting rod (17), and a short compression spring (18). The upper layer of the front hanger (4) is provided with two limiting seats (12), and two long adjusting rods (14) are slidably connected between the upper and lower layers of the front hanger (4). The limiting bolt (11) passes through any of the adjusting holes (13) to limit the position. The connecting plate (16) is slidably connected between the two long adjusting rods (14). The long adjusting rod (14) is also fitted with the long compression spring (15). The short adjusting rods (17) are slidably connected on both sides of the connecting plate (16). The short adjusting rods (17) are fitted with short compression springs (18). Both the short adjusting rod (17) and the long adjusting rod (14) are arranged vertically and are bolt-shaped. The large diameter end of the long adjusting rod (14) faces downward, and the large diameter end of the short adjusting rod (17) faces upward. The two short adjusting rods (17) are threadedly connected to the motor frame (52). The drive shaft (54) is connected to the wiping disc (55), the long compression spring (15) is sleeved on the long adjusting rod (14) between the upper layer of the front hanger (4) and the connecting plate (16), and the short compression spring (18) is sleeved on the short adjusting rod (17) between the connecting plate (16) and the motor frame (52). The drill bit (56) is connected to the drive shaft (54), the long compression spring (15) is sleeved on the long adjustment rod (14) between the connecting plate (16) and the lower end of the long adjustment rod (14), and the short compression spring (18) is sleeved on the short adjustment rod (17) between the connecting plate (16) and the upper end of the short adjustment rod (17). The front hanger (4) is vertically elastically slidably connected to the sizing mechanism (6) on the front side. The sizing mechanism (6) includes a sizing plate (61) and a stabilizing wheel (62) that is adjustablely connected to the sizing plate (61).

2. The concrete secondary slurry receiving device of claim 1, wherein, The self-propelled chassis (1) includes a chassis body (101), two-wheel axle (102), steering wheel (103) and a walking motor (104). The two-wheel axle (102) and steering wheel (103) are respectively arranged at both ends of the chassis body (101). The walking motor (104) is also arranged below the chassis body (101). The walking motor (104) and the two-wheel axle (102) are chain driven. The two-wheel axle (102) and the steering wheel (103) are both wide soft rubber wheels with spring shock absorption capacity.

3. The concrete secondary slurry receiving device of claim 1, wherein, The self-propelled chassis (1) is bolted to the frame (2), which is a rectangular steel frame. A handrail (7) is provided at the upper rear of the frame (2). A rubber pad (8) is also provided on the self-propelled chassis (1), and the mixing tank (31) is placed on the rubber pad (8).

4. The concrete secondary slurry receiving device of claim 1, wherein, The mixing tank (31) includes a tank body (91), a mixing motor (92) and a mixing shaft (93). The bottom of the tank body (91) is connected to the slurry outlet pipe (32). The slurry outlet pipe (32) extends forward to the front of the frame (2) and then bends vertically downward. The outlet of the slurry outlet pipe (32) is located between the two slurry pans (55). The outlet of the slurry outlet pipe (32) is also connected to a flexible hose.

5. The secondary concrete finishing device according to claim 1, characterized in that, The motor frame (52) is a rectangular frame. The motor frame (52) is divided into upper and lower layers. Both layers of the motor frame (52) are equipped with the lifting handle (51). The upper layer of the motor frame (52) is equipped with the pressing motor (53). The lower layer of the motor frame (52) is rotatably connected to the transmission shaft (54). The upper end of the transmission shaft (54) is detachably connected to the output shaft of the pressing motor (53). The lower end of the transmission shaft (54) is detachably connected to the wiping disc (55) or the drill bit (56). The smearing disc (55) is disc-shaped, with its edges curled upwards to form a disc shape that is high around the edges and low in the middle. The drill bit (56) is conical.

6. The secondary finishing device for concrete according to claim 1, characterized in that, The textured plate (61) is a long strip plate. The textured plate (61) has a height rod (19) with a raised ring (191) in the middle connected to both sides by threads. The height rod (19) passes upward through the front hanger (4) and is connected to a limit nut (21). A front compression spring (22) is sleeved on the height rod (19) between the front hanger (4) and the raised ring (191).

7. The secondary concrete finishing device according to claim 1, characterized in that, The front middle of the textured plate (61) is tapered to form a triangular segment (24), which is located between the two wiping discs (55). The stabilizing wheel (62) is arranged below the triangular segment (24). The stabilizing wheel (62) is a universal wheel with a vertical wheel rod (25) on it. The wheel rod (25) passes through the triangular segment (24), and two locking nuts (26) are provided on the wheel rod (25). The locking nuts (26) cooperate to clamp the triangular segment (24). The back side of the brushed plate (61) is bent downwards, and a number of brushed teeth (23) are evenly provided on the back side of the brushed plate (61) to form a comb shape.

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