A high-precision leveling device for large-area concrete pouring

Abstract

The present invention discloses a high-precision leveling device for large-area concrete pouring, which relates to the technical field of concrete pavement pouring and leveling, comprising a leveling frame, wherein the leveling frame is provided with a scraping plate, a leveling unit, a roller mechanism and a leveling mechanism arranged in sequence, and the leveling units are arranged in multiple groups in parallel horizontally, the leveling unit comprises a feeding box, wherein the upper and lower ends of the feeding box are respectively provided with a feeding port and a discharging port, a sliding sleeve is provided on the left side of the upper end of the feeding box, a sliding rod plug is extended into the lower end of the sliding sleeve, and the lower end of the sliding rod plug is connected to a hanging seat, the hanging seat and the sliding sleeve are connected by a spring, and a leveling wheel is rotated at the lower end of the hanging seat, and a material control plate for regulating the discharging port is provided on the right side of the hanging seat, and a grouting mechanism connected to the feeding port is further provided on the leveling frame; thereby, the height change of the self-adaptive concrete surface is sensed in real time, the material control plate is adjusted to adjust the opening of the discharging port, and the concave grouting and convex flattening are adjusted, so as to ensure that the volume of the filled slurry is dynamically matched with the volume of the concave, thereby improving the surface flatness.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pavement pouring and leveling, in particular to a high-precision leveling device for large-area concrete pouring. Background Art

[0002] In large-scale concrete pouring projects like parking lots and plazas, leveling accuracy is directly related to project quality and subsequent performance. Traditional manual leveling relies on operator experience, resulting in low efficiency, insufficient flatness, and material waste.

[0003] Although existing mechanical leveling equipment (such as scrapers and vibrating beams) can improve efficiency, it is easy to cause errors to accumulate during large-scale continuous construction due to differences in concrete fluidity and solidification characteristics, and local depressions or protrusions are difficult to avoid. In addition, most equipment cannot dynamically adjust the amount of grouting according to real-time surface fluctuations, resulting in insufficient filling or slurry overflow in low-lying areas, affecting the overall flatness. Multi-process step-by-step operations (scraping, filling, flattening, and leveling) require multiple equipment adjustments, which is inefficient and difficult to meet the high-precision and integrated construction requirements of modern projects.

[0004] Therefore, it is necessary to provide a high-precision leveling device for large-area concrete pouring to solve the problems raised in the above background technology. Summary of the Invention

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-precision leveling device for large-area concrete pouring, comprising a leveling frame, the leveling frame is provided with a scraping plate, a leveling unit, a roller mechanism and a leveling mechanism arranged in sequence, a plurality of leveling units are arranged in parallel laterally, the leveling unit comprises a feeding box, the upper and lower ends of the feeding box are respectively provided with a feed port and a discharge port, a sliding sleeve is provided on the left side of the upper end of the feeding box, a sliding rod plug is extended into the lower end of the sliding sleeve, a hanging seat is connected to the lower end of the sliding rod plug, the hanging seat and the sliding sleeve are connected by a spring, a leveling wheel is rotated at the lower end of the hanging seat, a material control plate for adjusting the discharge port is provided on the right side of the hanging seat, a grouting mechanism connected to the feed port is also provided on the leveling frame, and a combining unit for grouting and mixing is provided on the right side of the feeding box.

[0006] Preferably, a scraper is provided at the lower end of the material control plate for contacting the right side wheel surface of the leveling wheel.

[0007] Preferably, the rolling mechanism includes a shell cover, a pressure roller and a motor installed on the leveling frame, the upper roller surface of the pressure roller is close to the inner wall of the shell cover, and the output end of the motor is connected to the pressure roller.

[0008] Preferably, the grouting mechanism includes a storage box arranged on a leveling frame, a piston plate is provided in the storage box, the piston plate divides the interior of the storage box into an upper chamber and a lower chamber, the upper chamber is respectively connected to a pressure control pump and a pressure sensor, the top of the upper chamber is connected to the piston plate by spring 2, the bottom of the lower chamber is provided with a through hole connected to the feed port, and the upper end of the storage box is provided with a guide rod vertically passing through the piston plate.

[0009] Preferably, a material guide tube is provided at the upper end of the material storage box and vertically penetrates the piston plate. The wall of the material guide tube is provided with a through opening located in the lower cavity. A sealing cover is provided at the upper end of the material guide tube.

[0010] Preferably, the combining unit includes a tail block connected to the feeding box, a sliding cavity is provided in the tail block, a piston rod extends into the lower end of the sliding cavity, a hydraulic cavity 2 is located below between the piston rod and the sliding cavity, a hydraulic cavity 1 is provided between the sliding sleeve and the sliding rod plug, hydraulic cavity 1 and hydraulic cavity 2 are connected by a conduit, the lower end of the piston rod is connected to a hanging plate, the lower end of the hanging plate is rotated with a rotating sleeve, and top thorn rods are distributed circumferentially on the outer wall of the rotating sleeve.

[0011] Preferably, the pricking rod comprises a tapered rod perpendicular to the outer wall of the rotating sleeve.

[0012] Preferably, the outer wall of the tapered rod is provided with a plurality of groups of axially parallel and spaced convex rings.

[0013] Preferably, the leveling frame is further provided with a connecting seat.

[0014] Preferably, the leveling mechanism includes a vibrator connected to the leveling frame, the lower end of the vibrator is connected to a leveling right-angle plate, and the leveling right-angle plate is connected to the leveling frame located above it through spring three.

[0015] Compared with the prior art, the present invention provides a high-precision leveling device for large-area concrete pouring, which has the following beneficial effects:

[0016] In the present invention, multiple leveling units densely arranged along the scraper plate direction are combined with the feedback of spring and pressure to sense the undulations of the concrete surface in real time and adapt to the height changes of the concrete surface. The up and down fluctuations of the leveling wheel directly drive the material control plate to adjust the opening of the discharge port. The pressure sensor and pressure control pump of the grouting mechanism work together to adjust the method of grouting the concave parts and flattening the convex parts, accurately control the grouting amount, ensure the dynamic matching of the filling slurry volume and the concave volume, and improve the surface flatness.

[0017] The present invention integrates the functions of scraping, leveling, grouting, flattening and leveling into one, and processes in stages through the pressure roller and vibration leveling mechanism, completing multiple processes in a single operation, reducing the time for repeated equipment adjustment, and is particularly suitable for large-area continuous casting scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the leveling mechanism in the present invention;

[0020] Figure 3 It is a structural schematic diagram of the rolling mechanism in the present invention;

[0021] Figure 4 Schematic diagram of the structure of the grouting mechanism in the present invention;

[0022] Figure 5 It is a structural schematic diagram of the leveling unit in the present invention;

[0023] Figure 6 Schematic diagram of the internal structure of the leveling unit in the present invention;

[0024] Figure 7 Schematic diagram of the structure of the tapered rod and the convex ring in the present invention;

[0025] In the figure: 1. Leveling frame; 2. Scraping plate; 3. Leveling unit; 4. Grouting mechanism; 5. Rolling mechanism; 6. Leveling mechanism; 7. Connecting seat; 31. Feeding box; 32. Sliding sleeve; 33. Sliding rod plug; 34. Spring 1; 35. Hanging seat; 36. Leveling wheel; 37. Material control plate; 38. Scraping plate; 39. Combining unit; 311. Feeding port; 312. Discharging port; 321. Hydraulic chamber 1; 322. Conduit; 391. Tail block; 392. Piston rod; 393. Hanging plate; 394. Rotating Sleeve; 395, thorn rod; 3911, sliding cavity; 3912, hydraulic cavity 2; 3951, tapered rod; 3952, convex ring; 41, storage box; 42, guide rod; 43, guide tube; 44, sealing cover; 45, piston plate; 46, pressure control pump; 47, pressure sensor; 48, spring 2; 411, upper cavity; 412, lower cavity; 413, through hole; 431, through port; 51, shell cover; 52, pressure roller; 53, motor; 61, vibrator; 62, leveling right-angle plate; 63, spring 3. DETAILED DESCRIPTION

[0026] Reference Figure 1-Figure 7The present invention provides a technical solution: a high-precision leveling device for large-area concrete pouring, comprising a leveling frame 1, on which a scraping plate 2, a leveling unit 3, a roller mechanism 5 and a leveling mechanism 6 are arranged in sequence. A plurality of leveling units 3 are arranged in parallel horizontally. The leveling unit 3 comprises a feeding box 31, and a feeding port 311 and a discharging port 312 are respectively provided at the upper and lower ends of the feeding box 31. A sliding sleeve 32 is provided on the left side of the upper end of the feeding box 31, and a sliding rod plug 33 is extended into the lower end of the sliding sleeve 32. The lower end of the sliding rod plug 33 is connected to a hanging seat 35, and the hanging seat 35 is connected to the sliding sleeve 32 by a spring 34. A leveling wheel 36 is rotated at the lower end of the hanging seat 35, and a material control plate 37 for adjusting the discharging port 312 is provided on the right side of the hanging seat 35. The leveling frame 1 is also provided with a grouting mechanism 4 connected to the feeding port 311, and a combining unit 39 for grouting and mixing is provided on the right side of the feeding box 31.

[0027] Among them, in the process of pouring and paving large areas of concrete in parking lots and squares, concrete is generally poured into piles first, then spread and scraped flat, and then leveled with high precision. However, when leveling the spread concrete, the concrete will have a certain solidification effect from the time it is poured into piles to the time it is spread and scraped flat. That is to say, with the passage of time, the fluidity of the concrete gradually decreases. Therefore, when leveling it with high precision, the spread concrete often has a certain solidification condition, and the concrete fluidity is low. The existing device directly contacts the upper end face of the concrete through high-frequency vibration. Under the action of high-frequency vibration, its surface shows a certain degree of softening effect, so that its surface can be leveled. However, it is often easy to cause the granular matter distributed inside the upper end of the concrete to sink, resulting in uneven distribution of material particles in the concrete, thereby reducing the support strength of the concrete after solidification.

[0028] Therefore, in this embodiment, the surface of the low-fluidity spread concrete is leveled by the leveling unit 3, and then grouting is performed by the grouting mechanism 4, and then the bonding strength between the grouting mechanism 4 and the low-fluidity concrete is enhanced by the bonding unit 39;

[0029] Specifically, a plurality of closely arranged leveling units 3 are provided along the scraping direction of the scraping plate 2, thereby forming a plurality of leveling wheels 36 along the scraping direction of the scraping plate 2 for high-precision leveling. In addition, in the initial state of the leveling wheel 36, the lower end of the leveling wheel 36 is lower than the lower end of the scraping plate 2 and the pressure roller 52. When the leveling frame 1 is regulated for leveling, the leveling wheel 36 is initially pressed on an end surface flush with the upper end of the concrete. At this time, the hanging seat 35 is compressed, so that the lower end of the leveling wheel 36 is flush with the lower end of the scraping plate 2 and the pressure roller 52. At this time, the material control plate 37 is in a state of blocking the discharge port 312.

[0030] Specifically, when the concrete is leveled by the scraping plate 2, if the upper end surface of the concrete after being leveled by the scraping plate 2 is uneven, the leveling wheel 36, under the action of the spring 1 34, can move along the upper end surface of the concrete, and perform displacement fluctuations in the up and down directions to obtain the levelness of the path of the leveling wheel 36. The up and down displacement fluctuations of the leveling wheel 36 are fed back to the grouting mechanism 4 to replenish the fluctuating slurry in time, and then flattened by the pressure roller 52, and then leveled by the leveling mechanism 6.

[0031] In this embodiment, a scraper 38 is provided at the lower end of the material control plate 37, which contacts the right side wheel surface of the leveling wheel 36 so as to clean the wheel surface of the leveling wheel 36 in time. In addition, the lower end surface of the scraper 38 is curved so that the scraped slurry can fall smoothly and be evenly spread on the concrete surface.

[0032] In this embodiment, the rolling mechanism 5 includes a shell cover 51, a pressure roller 52 and a motor 53 installed on the leveling frame 1. The upper roller surface of the pressure roller 52 is close to the inner wall of the shell cover 51, and the output end of the motor 53 is connected to the pressure roller 52 to prevent the slurry from being thrown out from the surface of the pressure roller 52.

[0033] In this embodiment, the grouting mechanism 4 includes a storage box 41 provided on the leveling frame 1, and a piston plate 45 is provided in the storage box 41. The piston plate 45 divides the interior of the storage box 41 into an upper chamber 411 and a lower chamber 412. The upper chamber 411 is respectively connected to a pressure control pump 46 and a pressure sensor 47. The top of the upper chamber 411 is connected to the piston plate 45 by a spring 48. The bottom of the lower chamber 412 is provided with a through hole 413 connected to the feed port 311, and the upper end of the storage box 41 is provided with a guide rod 42 that vertically penetrates the piston plate 45 to improve the smoothness and stability of the movement of the piston plate 45.

[0034] The viscosity of the slurry in the slurry replenishing mechanism 4 needs to meet the following conditions: when the lower chamber 412 is filled with slurry, the largest outlet is formed between the material control plate 37 and the outlet 312, and at this time, the slurry in the lower chamber 412 is difficult to flow out of the outlet;

[0035] In addition, negative pressure is applied to the upper chamber 411 by the pressure control pump 46, and the spring 2 48 is in a compressed state. When the leveling wheel 36 tends to fluctuate up and down, a guide outlet corresponding to the opening condition is formed. Under the action of gravity, a negative pressure tendency is generated in the lower chamber 412, which tends to drive the material control plate 37 to move and fluctuate. The material control plate 37 tends to form a corresponding guide outlet opening degree between the material control plate 37 and the discharge port 312, so that the slurry in the lower chamber 412 tends to pull the piston plate 45 downward. At this time, the feedback is sent to the pressure control pump 46 to timely reduce the pressure of the upper chamber 41. 1, under the action of spring 2 48, the piston plate 45 squeezes the slurry in the lower chamber 412, and the slurry can be discharged from the corresponding outlet. At each moment, the sum of the product of the fluctuating displacement of all the leveling wheels 36 and the axial width of the leveling wheel 36 is equal to the product of the surface of the piston plate 45 and the height of the drop, so that the replenished slurry is relatively consistent with the volume of the uneven concave surface. The real-time displacement of the piston plate 45 is regulated, and the stability of the pressure change in the upper chamber 411 is monitored by the pressure sensor 47, so as to perform high-precision leveling.

[0036] In this embodiment, a material guide tube 43 is provided at the upper end of the storage box 41, which vertically penetrates the piston plate 45. The wall of the material guide tube 43 is provided with a through opening 431 located in the lower cavity 412. A sealing cover 44 is provided at the upper end of the material guide tube 43 to replenish the slurry in the lower cavity 412 in time.

[0037] In this embodiment, the combining unit 39 includes a tail block 391 connected to the feeding box 31, a sliding cavity 3911 is provided in the tail block 391, a piston rod 392 extends into the lower end of the sliding cavity 3911, a hydraulic cavity 2 3912 is located below between the piston rod 392 and the sliding cavity 3911, a hydraulic cavity 1 321 is provided between the sliding sleeve 32 and the sliding rod plug 33, the hydraulic cavity 1 321 and the hydraulic cavity 2 3912 are connected by a conduit 322, the lower end of the piston rod 392 is connected to a hanging plate 393, the lower end of the hanging plate 393 is rotated with a rotating sleeve 394, and the outer wall of the rotating sleeve 394 is circumferentially distributed with top spikes 395;

[0038] Among them, when the leveling wheel 36 fluctuates up and down, the pressure in the hydraulic chamber 1 321 fluctuates, and the pressure transmission of the fluctuation of the hydraulic chamber 1 321 changes the pressure fluctuation of the hydraulic chamber 2 3912, and the pressure fluctuation of the hydraulic chamber 2 3912 changes the up and down displacement fluctuation of the piston rod 392, so that the hanging plate 393 drives the rotating sleeve 394 to fluctuate up and down, and the rotating sleeve 394 drives the piercing rod 395 to pierce the upper end surface of the concrete compensated with slurry to form a puncture hole. At the same time, the slurry enters the puncture hole, and then the rotating sleeve is rolled to make the concrete compensated with the slurry layer form a densely distributed compensation slurry that penetrates into the concrete. After the slurry solidifies, a structure is formed in which the upper end is flush and the lower end is connected to the concrete multi-thorn head, thereby enhancing the bonding strength between the compensation slurry and the concrete, improving the leveling accuracy and the formed plane strength, and enhancing the durability of use.

[0039] In this embodiment, the piercing rod 395 includes a tapered rod 3951 perpendicular to the outer wall of the rotating sleeve 394, so that the piercing rod 395 can smoothly penetrate into and be pulled out of the concrete.

[0040] In this embodiment, the outer wall of the tapered rod 3951 is provided with multiple groups of axially parallel and spaced convex rings 3952, so that when the piercing rod 395 penetrates the concrete, it can drive the compensating slurry to embed into the concrete, thereby enhancing the bonding strength between the compensating slurry and the concrete.

[0041] In this embodiment, a connecting seat 7 is provided on the left side of the storage box 41 for connecting to an external mobile device.

[0042] In this embodiment, the leveling mechanism 6 includes a vibrator 61 connected to the leveling frame 1, and the lower end of the vibrator 61 is connected to a leveling right-angle plate 62. The upper end of the leveling right-angle plate 62 is connected to the leveling frame 1 above it through spring three 63 to improve the vibration stability of the leveling right-angle plate 62.

[0043] In specific implementation, it includes the following steps:

[0044] Step 1: Install the connecting base 7 on the external mobile device and add slurry to the lower chamber 412 of the storage box 41. When the leveling frame 1 is adjusted to level, the leveling wheel 36 is initially pressed on an end surface flush with the upper end of the concrete, so that the lower end of the leveling wheel 36 is flush with the lower ends of the scraper plate 2 and the pressure roller 52, and the material control plate 37 blocks the discharge port 312.

[0045] Step 2: Use the scraper plate 2 to scrape the concrete. If the upper end surface of the concrete after being scraped by the scraper plate 2 is uneven, the leveling wheel 36 will move along the upper end surface of the concrete under the action of the spring 1 34. At this time, the leveling wheel 36 will move up and down to determine the levelness of the path of the leveling wheel 36.

[0046] Step 3: The pressure in the upper chamber 411 is promptly reduced by the pressure control pump 46. Under the action of the second spring 48, the piston plate 45 squeezes the slurry in the lower chamber 412, and the slurry can be discharged from the corresponding outlet;

[0047] Step 4: Flattening by the pressing roller 52;

[0048] Step 5: Leveling is performed again through the leveling mechanism 6.

[0049] The above description is only a preferred specific embodiment of the invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-precision leveling device for large-area concrete pouring, comprising a leveling frame (1), characterized in that: The leveling frame (1) is provided with a scraping plate (2), a leveling unit (3), a roller pressing mechanism (5) and a leveling mechanism (6) arranged in sequence. The leveling unit (3) is arranged in multiple groups in parallel horizontally. The leveling unit (3) includes a feeding box (31). The upper and lower ends of the feeding box (31) are respectively provided with a feeding port (311) and a discharging port (312). A sliding sleeve (32) is provided on the left side of the upper end of the feeding box (31). A sliding rod plug (312) is inserted into the lower end of the sliding sleeve (32). 3), the lower end of the slide rod plug (33) is connected to a hanging seat (35), the hanging seat (35) and the sliding sleeve (32) are connected by a spring (34), the lower end of the hanging seat (35) is rotatably provided with a leveling wheel (36), the right side of the hanging seat (35) is provided with a material control plate (37) for regulating the discharge port (312), the leveling frame (1) is also provided with a slurry filling mechanism (4) connected to the feed port (311), and the right side of the feeding box (31) is provided with a combining unit (39) for slurry filling and mixing.

2. A high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The lower end of the material control plate (37) is provided with a scraper (38) that contacts the right wheel surface of the leveling wheel (36).

3. A high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The rolling mechanism (5) comprises a shell (51) mounted on a leveling frame (1), a pressing roller (52) and a motor (53); the upper roller surface of the pressing roller (52) is close to the inner wall of the shell (51); and the output end of the motor (53) is connected to the pressing roller (52).

4. The high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The grouting mechanism (4) includes a storage box (41) arranged on a leveling frame (1), a piston plate (45) is provided in the storage box (41), and the piston plate (45) divides the interior of the storage box (41) into an upper chamber (411) and a lower chamber (412). The upper chamber (411) is connected to a pressure control pump (46) and a pressure sensor (47), respectively. The top of the upper chamber (411) is connected to the piston plate (45) via a second spring (48), and the bottom of the lower chamber (412) is provided with a through hole (413) connected to the feed port (311), and the upper end of the storage box (41) is provided with a guide rod (42) vertically penetrating the piston plate (45).

5. A high-precision leveling device for large-area concrete pouring according to claim 4, characterized in that: The upper end of the material storage box (41) is provided with a material guide pipe (43) vertically penetrating the piston plate (45); the wall of the material guide pipe (43) is provided with a through opening (431) located in the lower cavity (412); and the upper end of the material guide pipe (43) is provided with a sealing cover (44).

6. The high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The combining unit (39) includes a tail block (391) connected to the feeding box (31), a sliding cavity (3911) is provided in the tail block (391), a piston rod (392) extends into the lower end of the sliding cavity (3911), a hydraulic cavity 2 (3912) is located below between the piston rod (392) and the sliding cavity (3911), a hydraulic cavity 1 (321) is provided between the sliding sleeve (32) and the sliding rod plug (33), the hydraulic cavity 1 (321) and the hydraulic cavity 2 (3912) are connected through a conduit (322), the lower end of the piston rod (392) is connected to a hanging plate (393), the lower end of the hanging plate (393) is rotated with a rotating sleeve (394), and the outer wall of the rotating sleeve (394) is circumferentially distributed with top thorn rods (395).

7. A high-precision leveling device for large-area concrete pouring according to claim 6, characterized in that: The pricking rod (395) comprises a tapered rod (3951) perpendicular to the outer wall of the rotating sleeve (394).

8. The high-precision leveling device for large-area concrete pouring according to claim 7, characterized in that: The outer wall of the tapered rod (3951) is provided with a plurality of axially parallel and spaced convex rings (3952).

9. The high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The leveling frame (1) is also provided with a connecting seat (7).

10. The high-precision leveling device for large-area concrete pouring according to claim 1, characterized in that: The leveling mechanism (6) includes a vibrator (61) connected to the leveling frame (1), the lower end of the vibrator (61) is connected to a leveling right-angle plate (62), and the leveling right-angle plate (62) is connected to the leveling frame (1) located above it through a spring three (63).

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