Scraping equipment for leveling cast-in-place concrete and using method
By designing a scraping device including a moving device, a robotic arm and a scraping device, and using a universal bearing and a track ring to control the movement of the ruler handle to simulate manual scraping actions, the problems of the existing equipment being bulky and relying on manual labor are solved, and high-precision concrete leveling and labor liberation are achieved.
Patent Information
- Application Number
- CN202511083671.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2025-10-10
AI Technical Summary
The existing cast-in-place concrete leveling equipment has bulky operating parts, a small scope of application, unsatisfactory flatness control, and relies on manual labor with high labor intensity.
A scraping device is designed, which includes a moving device, a robotic arm and a scraping device. The movement of the ruler handle is controlled by a universal bearing and a track ring to simulate the manual scraping action, achieve repeated scraping and reduce dependence on the operator.
It improves the leveling accuracy, reduces the labor intensity, liberates the labor force, reduces the labor cost, and is simple and convenient to operate.
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Figure CN120759432A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cast-in-situ concrete leveling equipment, and in particular to a scraping equipment for cast-in-situ concrete leveling and a use method thereof. Background Art
[0002] In modern construction, cast-in-place concrete structures and floors are widely used due to its excellent properties and low price. Cast-in-place concrete surfaces require leveling, which involves leveling the concrete surface to design and specification requirements to meet both functional and visual requirements. When used as a surface layer, a higher degree of flatness improves user comfort. Concrete is a highly viscous and dense mixture, making traditional manual leveling labor-intensive and labor-intensive. Current leveling machines are subject to cumbersome operating components, limited applicability, and unsatisfactory flatness control. Summary of the Invention
[0003] The purpose of the present invention is to provide a scraping device for leveling cast-in-place concrete and a method for using the device, which can solve the problems of high manual labor intensity and dependence on the operating level of the operator in the prior art.
[0004] To achieve the above object, the present invention adopts the following technical solutions: A scraping device for leveling cast-in-place concrete, comprising a moving device, a mechanical arm and a scraping device; The moving device is used to drive the mechanical arm and the scraping device to move in position; The mechanical arm is used to adjust the height and horizontal position of the scraping device; The scraping device is used to scrape cast-in-place concrete. The scraping device includes a shell, a drive assembly, a ruler handle, a universal bearing and a scraping ruler. The shell is installed on the end of the mechanical arm, and the universal bearing and the drive assembly are installed in the shell; the ruler handle is installed on the universal bearing, one end of the ruler handle passes through the shell and is connected to the scraping ruler, and the drive assembly is used to drive the other end of the ruler handle to move along a preset path; the ruler handle drives the scraping ruler to cyclically perform descending, flat scraping and lifting actions.
[0005] Preferably, the housing includes a first shell and a second shell that are detachably connected, and the second shell is connected to the end of the robotic arm through a connecting flange.
[0006] Preferably, a dust cover is installed at one end of the second shell, and one end of the ruler handle passes through the dust cover.
[0007] Preferably, the drive assembly includes a transmission shaft, a support frame and a shift fork, the transmission shaft is arranged on the support frame, and the support frame is arranged in the shell; one end of the shift fork is fixedly mounted on the transmission shaft, and the transmission shaft drives the shift fork to rotate; a track ring is provided on the support frame, one end of the ruler handle is located in the track ring, and the other end of the shift fork drives the ruler handle to move along the track ring.
[0008] Preferably, the track ring includes an arc portion and a straight portion, the arc portion is used to control the lowering and lifting action of the scraper; the straight portion is used to control the plane scraping action of the scraper.
[0009] Preferably, the cross-section of the scraper is L-shaped.
[0010] A method for using a scraping device for leveling cast-in-place concrete, the method comprising the following steps: Step 1: Operation preparation: the operator controls the moving device to adjust the position and moves the robotic arm and the scraping device to the specified position; the operator controls the robotic arm to adjust the height and horizontal position of the scraping device; Step 2: Scraping operation. The operator controls the driving assembly so that the ruler handle moves along the preset path. The ruler handle drives the scraper to cycle through lowering, flat scraping and lifting. The flat scraping action of the ruler handle is used to scrape the cast-in-place concrete.
[0011] In this invention, for materials with a certain degree of fluidity, such as concrete, achieving overall leveling cannot be achieved in one go, because a certain height of accumulation in front of the ruler will flow out from under the ruler, causing the ruler to be too high, requiring multiple leveling operations. This device can simulate manual operations, achieving lifting, lowering, and leveling actions, avoiding the problem of existing equipment that cannot lift, causing the high part behind the ruler to be pushed onto the leveling surface and unable to achieve overall leveling. It improves leveling accuracy, reduces dependence on the operator's skill level, liberates labor, and reduces labor costs.
[0012] The motion trajectory of the ruler handle can be controlled by the universal bearing and track ring, simulating manual operation, with precise motion control and simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the corresponding trajectory of the scraper in the straight line portion of the present invention; Figure 3 It is a vertical cross-sectional schematic diagram of the scraping device of the present invention when the scraper is in the straight portion; Figure 4 EE cross-sectional view of the scraper of the present invention when it is in the straight line portion; Figure 5This is a schematic diagram of the scraper according to the present invention in a descending state corresponding to the trajectory of the arc portion; Figure 6 The scraper of the present invention corresponds to the arc portion Figure 5 A vertical cross-sectional diagram of a scraping device; Figure 7 The scraper of the present invention corresponds to the arc portion Figure 6 Schematic diagram of the E1-E1 section; Figure 8 This is a schematic diagram of the scraper of the present invention when the arc portion corresponds to the trajectory rising to the highest position; Figure 9 The scraper of the present invention corresponds to the arc portion Figure 8 A vertical cross-sectional diagram of a scraping device; Figure 10 The scraper of the present invention corresponds to the arc portion Figure 9 Schematic diagram of the E2-E2 section; In the figure: 1. Moving device; 2. Robotic arm; 3. Scraping device; 30. Housing; 31. Drive assembly; 32. Ruler handle; 33. Universal bearing; 34. Scraper; 35. Connecting flange; 36. Ash cover; 300. First housing; 301. Second housing; 310. Drive shaft; 311. Support frame; 312. Shift fork; 313. Track ring. DETAILED DESCRIPTION
[0014] The present invention will be further described below with reference to the accompanying drawings: like Figures 1 to 10 The screeding device shown is used for leveling cast-in-place concrete and includes a mobile device 1, a robotic arm 2, and a screeding device 3. The mobile device 1 is used to move the robotic arm 2 and the screeding device 3. The mobile device 1 is a self-propelled robot and can be a mature product on the market.
[0015] Robotic arm 2 is used to adjust the height and horizontal position of scraping device 3. Robotic arm 2 can be a three-, four-, or six-axis robot depending on the working conditions. A drive motor is mounted on mobile device 1. This motor transmits power to scraping device 3 via a flexible shaft, providing power to scraping device 3 and reducing the load-bearing capacity of the end of robot arm 2. Alternatively, the drive motor can be mounted on scraping device 3.
[0016] The scraping device 3 is used to smooth the surface of cast-in-place concrete. It includes a housing 30, a drive assembly 31, a handle 32, a universal bearing 33, and a scraper 34. The housing 30 is mounted on the end of the robotic arm 2. Specifically, the housing 30 comprises a first housing 300 and a second housing 301, removably connected via threads or fasteners. One end of the second housing 301 is connected to the end of the robotic arm 2 via a connecting flange 35, facilitating installation and removal. An ash hood 36 is mounted on one end of the second housing 301, through which one end of the handle 32 passes. The ash hood 36 is made of a flexible material and prevents concrete and dust from entering the interior of the housing 30.
[0017] A universal bearing 33 and drive assembly 31 are mounted within the housing 30. A handle 32 is mounted on the universal bearing 33. One end of the handle 32 extends beyond the housing 30 and is fixedly connected to a scraper 34. The drive assembly 31 drives the other end of the handle 32 along a predetermined path, thereby enabling the handle 32 to drive the scraper 34 through a cycle of lowering, leveling, and lifting. The universal bearing 33 provides a support point for the handle 32. As the distal end of the handle 32 moves along the predetermined path, the front end of the handle 32 drives the scraper 34 along the designated path.
[0018] The drive assembly 31 includes a transmission shaft 310, a support frame 311 and a shift fork 312. The transmission shaft 310 is arranged on the support frame 311, and the support frame 311 is arranged in the housing 30; one end of the shift fork 312 is fixedly mounted on the transmission shaft 310, and the transmission shaft 310 drives the shift fork 312 to rotate; the rotational power of the transmission shaft 310 is provided by a drive motor or a flexible shaft installed on the housing 30.
[0019] A track ring 313 is mounted on the support frame 311. One end of the handle 32 is located within the track ring 313. The other end of the shift fork 312 shifts the handle 32 along the track ring 313. The track ring 313 comprises an arcuate portion and a straight portion. The arcuate portion controls the lowering and raising of the scraper 34; the straight portion controls the scraping of the surface. Overall, the scraper 34 simulates manual labor, requiring repeated operation to achieve overall leveling. The cross-section of the scraper 34 is L-shaped.
[0020] like Figures 1 to 10 A method for using a scraping device for leveling cast-in-place concrete is shown, and the method comprises the following steps: Step one, operation preparation, the operator controls the mobile device 1 to adjust the position, moves the mechanical arm 2 and the screeding device 3 to a designated position, and keeps the mobile device 1 stable after being positioned. Then the operator controls the mechanical arm 2 to adjust the height and horizontal position of the screeding device 3, and keeps the mechanical arm 2 in the corresponding posture after the adjustment. During the screeding operation, the mechanical arm 2 can be adjusted in the corresponding height and horizontal position, and the movement of the mechanical arm 2 is controlled by manual remote control or preset program control.
[0021] Step two, screeding operation, the operator controls the driving assembly 31 to move, so that the ruler handle 32 moves along a preset path, the ruler handle 32 drives the screed 34 to cyclically perform the falling, planar screeding and lifting actions, simulating manual operation; the planar screeding action of the ruler handle 32 is used for screeding the cast-in-place concrete. After a region is screeded, the mobile device 1 and the mechanical arm 2 are used to adjust the position and height, and then the next region is screeded.
[0022] The above embodiments are only some descriptions of the concept and implementation of the present application, and do not limit the present application. Under the concept of the present application, technical solutions without substantial changes are still within the protection scope.
Claims
1. A scraping device for leveling cast-in-place concrete, characterized by: It comprises a moving device (1), a mechanical arm (2) and a scraping device (3); The moving device (1) is used to drive the mechanical arm (2) and the scraping device (3) to move their positions; The mechanical arm (2) is used to adjust the height and horizontal position of the scraping device (3); The scraping device (3) is used for scraping cast-in-place concrete. The scraping device (3) comprises a housing (30), a driving assembly (31), a ruler handle (32), a universal bearing (33) and a scraping ruler (34). The housing (30) is mounted on the end of the mechanical arm (2), and the universal bearing (33) and the driving assembly (31) are mounted in the housing (30). The ruler handle (32) is mounted on the universal bearing (33), and one end of the ruler handle (32) passes through the housing (30) and is connected to the scraping ruler (34). The driving assembly (31) is used to drive the other end of the ruler handle (32) to move along a preset path. The ruler handle (32) drives the scraping ruler (34) to perform cyclic descending, plane scraping and lifting actions.
2. The scraping device for leveling cast-in-place concrete according to claim 1, characterized in that: The housing (30) comprises a first shell (300) and a second shell (301) that are detachably connected, and the second shell (301) is connected to the end of the robotic arm (2) via a connecting flange (35).
3. The scraping equipment for leveling cast-in-place concrete according to claim 2, characterized in that: An ash cover (36) is installed at one end of the second housing (301), and one end of the ruler handle (32) passes through the ash cover (36).
4. The scraping device for leveling cast-in-place concrete according to claim 1 or 3, characterized in that: The driving assembly (31) includes a transmission shaft (310), a support frame (311) and a shift fork (312), wherein the transmission shaft (310) is arranged on the support frame (311), and the support frame (311) is arranged in the housing (30); one end of the shift fork (312) is fixedly mounted on the transmission shaft (310), and the transmission shaft (310) drives the shift fork (312) to rotate; a track ring (313) is provided on the support frame (311), one end of the ruler handle (32) is located in the track ring (313), and the other end of the shift fork (312) shifts the ruler handle (32) to move along the track ring (313).
5. The scraping equipment for leveling cast-in-place concrete according to claim 4, characterized in that: The track ring (313) comprises an arcuate portion and a straight portion, the arcuate portion being used to control the lowering and lifting movements of the scraper (34); and the straight portion being used to control the plane-leveling movement of the scraper (34).
6. The scraping equipment for leveling cast-in-place concrete according to claim 1, characterized in that: The scraper (34) has an L-shaped cross section.
7. A method for using the scraping device for leveling cast-in-place concrete according to any one of claims 1 to 6, characterized in that: The method of use comprises the following steps: Step 1: Operation preparation: the operator controls the moving device (1) to adjust the position, and moves the mechanical arm (2) and the scraping device (3) to the designated position; the operator controls the mechanical arm (2) to adjust the height and horizontal position of the scraping device (3); In step 2, the scraping operation, the operator controls the driving component (31) to move the ruler handle (32) according to the preset path, and the ruler handle (32) drives the scraper (34) to perform the cyclical actions of lowering, flat scraping and lifting. The flat scraping action of the ruler handle (32) is used to scrape the cast-in-place concrete.
Citation Information
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