Municipal road embossed concrete trowelling device
By designing an adjustable-angle and adjustable-distance trowel assembly, the problem of grouting devices sticking to concrete after contact was solved, thus improving the smoothness of the concrete surface and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional smoothing machinery tends to get contaminated with concrete after contacting the concrete surface, resulting in an uneven surface and affecting the construction effect.
A municipal road stamped concrete smoothing device was designed, which adopts a smoothing scraper, back plate, connecting shaft, rotating frame and angle limiting component. The smoothing scraper can be flexibly adjusted by adjusting the angle and distance, and precise control is achieved by using servo motor and lifting rod.
This effectively prevents the trowel from sticking to the concrete, ensuring the smoothness of the surface and the construction effect after troweling, and improving construction efficiency.
Smart Images

Figure CN224092277U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of road construction technology, specifically a stamped concrete smoothing device for municipal roads. Background Technology
[0002] Concrete surface smoothing is a crucial step after concrete pouring. Its main purpose is to level the concrete surface using manual or mechanical tools to ensure it meets design requirements for smoothness and density. Smoothing is typically performed before the concrete initially sets. Through repeated scraping and finishing, it eliminates surface unevenness, air bubbles, and bleeding, while also enhancing the concrete's abrasion resistance and impermeability. This process not only affects the appearance of the concrete but also plays a vital role in the structure's durability and performance.
[0003] For example, CN213709067U discloses an environmentally friendly and energy-saving concrete smoothing device for municipal roads, belonging to the field of municipal road construction technology. It includes a traction frame, a rotary motor, a rotary block, a driven block, a smoothing device, a smoothing bucket, a leveling plate, and a connecting bracket. The rotary motor is fixedly installed at the bottom of the traction frame, and a connecting bracket is connected to the left side of the traction frame. A leveling plate is installed at the end of the connecting bracket. A driven block is installed at the end of the rotary block above the rotary motor, and a smoothing device is located below the driven block. A smoothing bucket is installed below the smoothing device. This invention, through a reciprocating smoothing device and multiple smoothing rulers at its bottom, can evenly smooth concrete after it is poured through the material delivery hole and smooth it with the leveling plate. Smoothing is performed simultaneously with concrete pouring, improving construction efficiency and saving energy.
[0004] However, in practical use, it was found that traditional smoothing machines, due to frequent contact with the concrete surface, accumulate concrete residue, resulting in some drying and adhesion. Smoothing in this way leaves the concrete surface uneven, affecting the construction effect. Therefore, a new type of machinery needs to be designed to properly treat the concrete residue on the end that was in contact with the concrete after smoothing, so that the smoothed surface maintains a certain level of effectiveness upon reuse. Utility Model Content
[0005] The purpose of this application is to provide a municipal road stamped concrete smoothing device to solve the problem of processing one end of the concrete after contamination mentioned above.
[0006] The technical solution adopted in this application is as follows: a municipal road stamped concrete smoothing device, wherein a back plate is fixedly connected to the side surface of the smoothing scraper, a connecting shaft is fixedly inserted into the side surface of the back plate, a rotating frame is rotatably inserted into the side surface of the connecting shaft, a plurality of angle limiting semicircular plates are fixedly connected to the side surface of the back plate, a plurality of angle limiting holes are opened on the side surface of the angle limiting semicircular plates, angle limiting bolts are inserted into the angle limiting holes through the opened holes, a connecting back plate is fixedly connected to one end of the rotating frame relative to the connecting shaft, a smoothing scraper is connected to one end of the connecting back plate relative to the rotating frame, and a plurality of connecting bolts are provided on the side surface of the connecting back plate.
[0007] By adopting the above technical solution, the operator uses a screed as a traction component to bring the screed into contact with the poured concrete. The back plate, connecting shaft, rotating frame, connecting back plate, and connecting bolts serve as connecting components to the screed. The screed is a replaceable material, which can be replaced to a certain extent after contact with the concrete surface. To accommodate flat surfaces that appear during the screeding process, angle-limiting semicircular plates, angle-limiting holes, and angle-limiting bolts are used as angle-limiting components, allowing the placement angle of the screed to be changed, thus providing flexibility in the entire screeding operation.
[0008] The smoothing scraper, acting as the moving component, has a fixed connection between its side surface and the back plate. A connecting shaft, fixedly inserted into the scraper, serves as the connecting component, with rotating brackets rotatably connected to both ends. Each rotating bracket is a concave frame that can rotate relative to the back plate. One end of the rotating bracket is connected to the connecting back plate, which, as a back plate component, has a smoothing scraper connected to its opposite end. The two components are connected together using connecting bolts.
[0009] The rotating frame rotates relative to the back plate, primarily to deflect the smoothed material to a certain angle, after which the smoothing scraper moves the entire smoothing component. Corresponding holes are provided on the side surface of the rotating frame, while angle-limiting semicircular plates are fixedly connected to both ends of the inner surface of the back plate. These semicircular plates are crescent-shaped with angle-limiting holes arranged along an arc. When the frame rotates to a certain angle, angle-limiting bolts are inserted into them, connecting the rotating frame and the angle-limiting semicircular plates together, thus achieving a fixed angle.
[0010] In a preferred embodiment, a secondary lifting rod is fixedly connected to one end of the smoothing scraper relative to the back plate. The side surface of the secondary lifting rod is provided with a plurality of secondary limiting holes. A secondary insertion groove is slidably inserted into one end of the secondary lifting rod relative to the smoothing scraper. A secondary limiting bolt is slidably inserted into the outer side surface of the secondary insertion groove.
[0011] By adopting the above technical solution, since smoothing requires the board to contact the poured concrete surface, the adjustment of the distance is very important. The adjustment of the height distance is achieved by using the sliding connection between the secondary lifting rod and the secondary insertion slot to complete the fine distance adjustment, while the connection between the secondary limiting hole and the secondary limiting bolt is used to fix the distance after lifting.
[0012] In a preferred embodiment, a traction sleeve is fixedly connected to one end of the secondary insertion slot relative to the secondary lifting rod. A lead screw is rotatably inserted into the side surface of the traction sleeve. A servo motor is fixedly connected to the side surface of the lead screw. A receiving plate is connected to one end of the lead screw relative to the servo motor. A base is fixedly connected to one end of the receiving plate relative to the side surface of the lead screw.
[0013] By adopting the above technical solution, a traction sleeve is used as a traction component. It has internal threads, and after contacting the threads on the lead screw, some steel balls are set inside to form the effect of a ball screw. This allows the servo motor to drive the lead screw to rotate, enabling the traction sleeve to move on the horizontal plane, while the receiving plate is used as the other end for support.
[0014] In a preferred embodiment, a motor switch and a gear selector button are provided on the side surface of the servo motor.
[0015] By adopting the above technical solution, a motor switch is used as a component to control the servo motor switch, and the motor switch installed on it serves as a gear control component to control different rotation speeds of the servo motor, thereby affecting the moving speed of the traction sleeve.
[0016] In a preferred embodiment, an outer baffle is fixedly connected to the side surface of the servo motor, and an outer frame lifting rod is fixedly connected to the side surface of the servo motor. The side surface of the outer frame lifting rod is provided with a plurality of primary limiting holes.
[0017] By adopting the above technical solution, the outer baffle is used as the protective shell component of the lead screw, and the outer frame lifting rod is used as the external frame component, which also has a lifting function and can adjust the distance between the entire device and the concrete surface. The first-level limiting hole is used as the distance limiting component.
[0018] In a preferred embodiment, a primary insertion sleeve is slidably inserted into one end of the outer frame lifting rod relative to the servo motor, and a primary limiting bolt is inserted into the side surface of the primary insertion sleeve.
[0019] By adopting the above technical solution, the sliding connection between the first-level limiting hole and the first-level insertion sleeve is used to realize the lifting function, and the connection between the first-level limiting bolt and the first-level limiting hole is used to fix the height distance.
[0020] In a preferred embodiment, a plurality of external supports are fixedly connected to the side surface of the primary plug sleeve.
[0021] By adopting the above technical solution, an external support frame is used as the supporting structure for the entire device.
[0022] In a preferred embodiment, a mounting base plate is fixedly connected to one end side surface of the outer bracket relative to the primary plug sleeve.
[0023] By adopting the above technical solution, the mounting base plate is used as the mounting component between the entire device and the ground.
[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0025] In this application, the smoothing scraper, as a moving component, has a fixed connection between its side surface and the back plate. A connecting shaft, fixedly inserted into the scraper, serves as a connecting component, with rotating brackets rotatably connected to both ends. Each rotating bracket is a concave frame that can rotate relative to the back plate. One end of the rotating bracket is connected to the connecting back plate. Since the connecting back plate is a back plate component, a smoothing scraper is connected to its end relative to the rotating bracket. The two components are connected together using connecting bolts.
[0026] The rotating frame rotates relative to the back plate, primarily to deflect the smoothed material to a certain angle, after which the smoothing scraper moves the entire smoothing component. Corresponding holes are provided on the side surface of the rotating frame, while angle-limiting semicircular plates are fixedly connected to both ends of the inner surface of the back plate. These semicircular plates are crescent-shaped with angle-limiting holes arranged along an arc. When the frame rotates to a certain angle, angle-limiting bolts are inserted into them, connecting the rotating frame and the angle-limiting semicircular plates together, thus achieving a fixed angle. Attached Figure Description
[0027] Figure 1 This is a three-dimensional structural diagram of the overall device of this application;
[0028] Figure 2 This is a detailed schematic diagram of the back panel in this application;
[0029] Figure 3 This is a detailed schematic diagram of the lead screw in this application;
[0030] Figure 4 This is a detailed schematic diagram of the traction sleeve in this application.
[0031] The markings in the diagram are: 1. Smoothing scraper; 2. Back plate; 3. Connecting shaft; 4. Rotating frame; 5. Angle limiting semicircular plate; 6. Angle limiting hole; 7. Angle limiting bolt; 8. Connecting back plate; 9. Connecting bolt; 10. Smoothing scraper; 11. Secondary lifting rod; 12. Secondary limiting hole; 13. Secondary insertion slot; 14. Secondary limiting bolt; 15. Traction sleeve; 16. Lead screw; 17. Servo motor; 18. Support plate; 19. Base; 20. Motor switch; 21. Gear button; 22. Outer baffle; 23. Outer frame lifting rod; 24. Primary limiting hole; 25. Primary insertion sleeve; 26. Primary limiting bolt; 27. Outer bracket; 28. Mounting base plate. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] Reference Figure 1-4 ,
[0034] Example: A municipal road stamped concrete smoothing device, wherein a back plate 2 is fixedly connected to the side surface of a smoothing scraper 1, a connecting shaft 3 is fixedly inserted into the side surface of the back plate 2, a rotating frame 4 is rotatably inserted into the side surface of the connecting shaft 3, multiple angle limiting semicircular plates 5 are fixedly connected to the side surface of the back plate 2, multiple angle limiting holes 6 are opened on the side surface of the angle limiting semicircular plates 5, angle limiting bolts 7 are inserted into the angle limiting holes 6 through the holes, a connecting back plate 8 is fixedly connected to one end of the rotating frame 4 relative to the connecting shaft 3, a smoothing scraper 10 is connected to one end of the connecting back plate 8 relative to the rotating frame 4, and multiple connecting bolts 9 are provided on the side surface of the connecting back plate 8.
[0035] The operator uses the screed rod 1 as a traction component to bring the screed into contact with the poured concrete. The back plate 2, connecting shaft 3, rotating frame 4, connecting back plate 8, and connecting bolt 9 serve as connecting components to the screed 10. The screed 10 is a replaceable material; it can be replaced to a certain extent after contacting the concrete surface. To accommodate flat surfaces that appear during the screeding process, an angle-limiting semicircular plate 5, angle-limiting holes 6, and angle-limiting bolts 7 are used as angle-limiting components, allowing the placement angle of the screed 10 to be changed, thus providing flexibility in the screeding operation.
[0036] The smoothing scraper 1, acting as the moving component, has a fixed connection between its side surface and the back plate 2. A connecting shaft 3, fixedly inserted into the shaft, serves as a connecting component, with rotating frames 4 rotatably connected to both ends. The rotating frame 4 is a concave frame that can rotate relative to the back plate 2. One end of the rotating frame 4 is connected to a connecting back plate 8. Since the connecting back plate 8 is a back plate component, a smoothing scraper 10 is connected to its end relative to the rotating frame 4. The two are connected together using connecting bolts 9.
[0037] The rotating frame 4 rotates relative to the back plate 2. This rotation is mainly used to deflect the smoothed material to a certain angle, and then the smoothing scraper 1 drives the entire smoothing component to move. The side surface of the rotating frame 4 has corresponding holes, and the inner surface of the back plate 2 is fixedly connected to both ends of an angle limiting semicircular plate 5. The angle limiting semicircular plate 5 is crescent-shaped, and angle limiting holes 6 are opened on it according to the arc trajectory. When it rotates to a certain angle, the angle limiting bolts 7 are inserted into it to connect the rotating frame 4 and the angle limiting semicircular plate 5 together, thereby achieving fixation at a certain angle.
[0038] A secondary lifting rod 11 is fixedly connected to one end of the smoothing scraper 1 relative to the back plate 2. The side surface of the secondary lifting rod 11 is provided with multiple secondary limiting holes 12. A secondary insertion groove 13 is slidably inserted into one end of the secondary lifting rod 11 relative to the smoothing scraper 1. A secondary limiting bolt 14 is slidably inserted into the outer side surface of the secondary insertion groove 13.
[0039] Since smoothing requires the board to come into contact with the poured concrete surface, the adjustment of the distance is very important. The height distance is adjusted by using the sliding connection between the secondary lifting rod 11 and the secondary insertion groove 13 to make fine distance adjustments, while the connection between the secondary limiting hole 12 and the secondary limiting bolt 14 is used to fix the distance after lifting.
[0040] A traction sleeve 15 is fixedly connected to one end of the secondary insertion slot 13 relative to the secondary lifting rod 11. A lead screw 16 is rotatably inserted into the side surface of the traction sleeve 15. A servo motor 17 is fixedly connected to the side surface of the lead screw 16. A receiving plate 18 is connected to one end of the lead screw 16 relative to the servo motor 17. A base 19 is fixedly connected to one end of the receiving plate 18 relative to the side surface of the lead screw 16.
[0041] The traction sleeve 15 is used as the traction component. It has internal threads, and after contacting the threads on the lead screw 16, some steel balls are set inside to form the effect of a ball screw. This allows the servo motor 17 to drive the lead screw 16 to rotate, enabling the traction sleeve 15 to move on the horizontal plane. The receiving plate 18 is used as the other end for support.
[0042] A motor switch 20 and a gear position button 21 are provided on the side surface of the servo motor 17. The motor switch 20 is used as a component to control the switching of the servo motor 17, and the motor switch 20 provided on it is used as a gear position control component to control different rotation speeds of the servo motor 17, thereby affecting the moving speed of the traction sleeve 15.
[0043] An outer baffle 22 is fixedly connected to the side surface of the servo motor 17, and an outer frame lifting rod 23 is also fixedly connected to the side surface of the servo motor 17. Multiple primary limiting holes 24 are provided on the side surface of the outer frame lifting rod 23. The outer baffle 22 serves as a protective housing component for the lead screw 16, and the outer frame lifting rod 23 serves as an external frame component. It also has a lifting function and can adjust the distance between the entire device and the concrete surface. The primary limiting holes 24 serve as distance limiting components.
[0044] The outer frame lifting rod 23 has a first-level insertion sleeve 25 slidably inserted into one end of the side surface opposite the servo motor 17, and a first-level limiting bolt 26 is inserted into the side surface of the first-level insertion sleeve 25. The sliding insertion between the first-level limiting hole 24 and the first-level insertion sleeve 25 is used to realize the lifting function, and the insertion between the first-level limiting bolt 26 and the first-level limiting hole 24 is used to fix the height distance.
[0045] Multiple external supports 27 are fixedly connected to the side surface of the primary connector 25. The external supports 27 serve as the support structure for the entire device.
[0046] An outer bracket 27 is fixedly connected to a mounting base plate 28 on one end of the side surface opposite the primary insertion sleeve 25. The mounting base plate 28 serves as the mounting component between the entire device and the ground.
[0047] The implementation principle of this embodiment of a municipal road stamped concrete smoothing device is as follows: The operator uses a smoothing scraper 1 as a traction component to drive the smoothing component into contact with the poured concrete. The back plate 2, connecting shaft 3, rotating frame 4, connecting back plate 8, and connecting bolt 9 serve as connecting components to connect the smoothing scraper 10. The smoothing scraper 10 is a replaceable material that can be replaced to a certain extent after contacting the concrete surface. To accommodate flat surfaces that appear during the smoothing process, an angle-limiting semicircular plate 5, an angle-limiting hole 6, and an angle-limiting bolt 7 are used as angle-limiting components, allowing the placement angle of the smoothing scraper 10 to be changed, thus providing flexibility in the smoothing operation.
[0048] The smoothing scraper 1, acting as the moving component, has a fixed connection between its side surface and the back plate 2. A connecting shaft 3, fixedly inserted into the shaft, serves as a connecting component, with rotating frames 4 rotatably connected to both ends. The rotating frame 4 is a concave frame that can rotate relative to the back plate 2. One end of the rotating frame 4 is connected to a connecting back plate 8. Since the connecting back plate 8 is a back plate component, a smoothing scraper 10 is connected to its end relative to the rotating frame 4. The two are connected together using connecting bolts 9.
[0049] The rotating frame 4 rotates relative to the back plate 2. This rotation is mainly used to deflect the smoothed material to a certain angle, and then the smoothing scraper 1 drives the entire smoothing component to move. The side surface of the rotating frame 4 has corresponding holes, and the inner surface of the back plate 2 is fixedly connected to both ends of an angle limiting semicircular plate 5. The angle limiting semicircular plate 5 is crescent-shaped, and angle limiting holes 6 are opened on it according to the arc trajectory. When it rotates to a certain angle, the angle limiting bolts 7 are inserted into it to connect the rotating frame 4 and the angle limiting semicircular plate 5 together, thereby achieving fixation at a certain angle.
[0050] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A municipal road stamped concrete smoothing device, comprising a smoothing scraper (1), characterized in that: A back plate (2) is fixedly connected to the side surface of the smoothing scraper (1). A connecting shaft (3) is fixedly inserted into the side surface of the back plate (2). A rotating frame (4) is rotatably inserted into the side surface of the connecting shaft (3). Multiple angle limiting semicircular plates (5) are fixedly connected to the side surface of the back plate (2). Multiple angle limiting holes (6) are opened on the side surface of the angle limiting semicircular plates (5). An angle limiting bolts (7) are inserted into the angle limiting holes (6) through the holes. A connecting back plate (8) is fixedly connected to one end of the rotating frame (4) relative to the connecting shaft (3). A smoothing scraper (10) is connected to one end of the connecting back plate (8) relative to the rotating frame (4). Multiple connecting bolts (9) are provided on the side surface of the connecting back plate (8).
2. The stamped concrete smoothing device for municipal roads as described in claim 1, characterized in that: A secondary lifting rod (11) is fixedly connected to one end of the smoothing scraper (1) relative to the back plate (2). The side surface of the secondary lifting rod (11) is provided with multiple secondary limiting holes (12). A secondary insertion groove (13) is slidably inserted into one end of the secondary lifting rod (11) relative to the smoothing scraper (1). A secondary limiting bolt (14) is slidably inserted into the outer side surface of the secondary insertion groove (13).
3. The stamped concrete smoothing device for municipal roads as described in claim 2, characterized in that: The secondary insertion slot (13) is fixedly connected to a traction sleeve (15) on one end of the secondary lifting rod (11). A lead screw (16) is rotatably inserted into the side surface of the traction sleeve (15). A servo motor (17) is fixedly connected to the side surface of the lead screw (16). A receiving plate (18) is connected to one end of the lead screw (16) relative to the servo motor (17). A base (19) is fixedly connected to one end of the receiving plate (18) relative to the lead screw (16).
4. The stamped concrete smoothing device for municipal roads as described in claim 3, characterized in that: The servo motor (17) has a motor switch (20) on its side surface and a gear button (21) on its side surface.
5. A municipal road stamped concrete smoothing device as described in claim 3, characterized in that: An outer baffle (22) is fixedly connected to the side surface of the servo motor (17), and an outer frame lifting rod (23) is fixedly connected to the side surface of the servo motor (17). A plurality of first-level limiting holes (24) are opened on the side surface of the outer frame lifting rod (23).
6. The stamped concrete smoothing device for municipal roads as described in claim 5, characterized in that: The outer frame lifting rod (23) is slidably inserted with a first-level plug sleeve (25) on one end of the side surface of the servo motor (17), and a first-level limit bolt (26) is inserted into the side surface of the first-level plug sleeve (25).
7. A municipal road stamped concrete smoothing device as described in claim 6, characterized in that: Multiple external brackets (27) are fixedly connected to the side surface of the primary plug sleeve (25).
8. A municipal road stamped concrete smoothing device as described in claim 7, characterized in that: The outer bracket (27) is fixedly connected to a mounting base plate (28) on one side surface relative to the first-level plug sleeve (25).
Citation Information
Patent Citations
Environment-friendly and energy-saving municipal road concrete trowelling device
CN213709067U