Concrete mortar trowelling device

Abstract

The invention discloses a concrete mortar trowelling device, which belongs to the field of ceramic tile laying cement trowelling, and is characterized in that a trowelling pressing plate is provided with a concrete mortar backflow port, so that excessive concrete mortar can be better recycled during construction among wall corners, wall bodies and the ground; and the problems that wall corners and other places cannot be uniformly compacted and excessive concrete mortar is generated are effectively solved. A concrete mortar pool is arranged in the vehicle body, a mortar pump is arranged on the portion, on one side of the concrete mortar pool, of the vehicle body, one side of the mortar pump is communicated with the concrete mortar pool, and the other side of the mortar pump is communicated with a mortar pipe. The mortar pipe is connected with the rotary spraying pipe through the rotary support, the rotary support is driven to rotate through the driving structure, the spraying head is arranged at the front end of the rotary spraying pipe, the trowelling pressing plate is a symmetrical semi-concentric-square-shaped pressing plate, and the semi-concentric-square-shaped pressing plate comprises a side plate and a pressing plate body. The screeding device is mainly used for screeding concrete mortar during tile laying.

Description

Technical Field

[0001] The invention relates to the field of tile laying cement leveling, in particular to a concrete mortar leveling device. Background Art

[0002] To lay ceramic tiles on the indoor floor, you need to apply cement mortar on the ground, and then lay ceramic tiles on the cement mortar to form the indoor ceramic tile layer. There are two purposes for applying cement mortar. First, during the construction process, cement mortar will be applied to the floor after the floor is laid. However, the applied cement mortar is often uneven. Applying cement mortar again on the ceramic tiles is to level the ground so that the laid ceramic tiles are flat; second, cement mortar can play a bonding role between the ground and the ceramic tiles.

[0003] At present, manual laying is mainly adopted, which requires workers to mix cement mortar while laying, which is inefficient. In addition, if the uneven position is near the wall, there is a line for comparison, and the workers can smooth it. However, it is difficult to ensure smoothness in the middle of the house, which is far away from the line on the wall. For example, a cement smearing device for tiles used in construction with publication number CN111576800A can achieve cement smoothing in some areas, but it cannot handle the corners and the junctions between the wall and the ground well. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete mortar leveling device, the concrete mortar return port provided on the leveling plate can better recover excess concrete mortar during construction in corners, walls and between the ground, and effectively solve the problem of uneven compaction in corners and other places and the problem of excess concrete mortar.

[0005] The present invention is achieved through the following technical solutions:

[0006] A concrete mortar smoothing device comprises a vehicle body, a rotating steering wheel is arranged under the vehicle body, and smoothing pressing plates are symmetrically installed on both sides of the vehicle body through a telescopic mechanism, a concrete mortar pool is arranged in the vehicle body, a mortar pump is arranged on the vehicle body on one side of the concrete mortar pool, one side of the mortar pump is connected with the concrete mortar pool, and the other side of the mortar pump is connected with the mortar pipe, the mortar pipe is connected with the rotating nozzle through a slewing support, the slewing support is driven to rotate by a driving structure, a nozzle is arranged at the front end of the rotating nozzle, and the smoothing pressing plate is a symmetrical semi-circular pressing plate, which comprises a side plate and a pressing plate, and the side plate plays a role in spreading the concrete mortar, and the pressing plate plays a role in compacting the concrete mortar under the dead weight of the vehicle body, and concrete mortar return ports are opened at the four top corners of the semi-circular pressing plate, and the smoothing pressing plate is at the wall side or the corner, and the excess concrete mortar will be pressed into the side plate and the pressing plate through the concrete mortar return port to ensure that the corner is smoothed evenly and no excess concrete mortar remains.

[0007] Furthermore, the side plates and the pressing plate are arranged at right angles, and a bent plate is provided at the rear end of the pressing plate, which is used to scrape away excess concrete mortar to ensure that the concrete mortar has a relatively uniform thickness, facilitating subsequent compaction by the pressing plate.

[0008] Furthermore, the driving structure includes a rotation control motor, which is arranged on the vehicle body and is provided with a transmission gear, which is meshed with the slewing support; and also includes a rotation detection device.

[0009] Furthermore, the rotation detection device includes a photoelectric switch and a detection plate. The photoelectric switch is installed on the rotating nozzle through a bracket, and the detection plate is installed on the vehicle body at 90° intervals. The rotation control motor drives the slewing support through the transmission gear to rotate the rotating nozzle. After the photoelectric switch on the rotating nozzle detects the detection plate at the corresponding position, the rotation control motor stops.

[0010] Furthermore, pressure sensors are symmetrically provided on the top of each side panel. When the pressure sensors touch the wall, the rotating steering wheel will rotate and change the direction of movement.

[0011] Furthermore, the telescopic mechanism includes a translation control motor symmetrically arranged on the vehicle body, a mounting plate symmetrically arranged on the vehicle body above the concrete mortar pool, guide rails symmetrically arranged on the mounting plate, a screw is also arranged on the mounting plate through a screw seat, the translation control motor drives the screw to rotate, mounting frames are symmetrically arranged on the pressure plates of the smoothing pressure plates on both sides, the mounting frames on both sides are connected by a connecting frame, the screw is connected to the connecting frame through a screw nut, and the connecting frame is also slidably connected to the guide rail.

[0012] Furthermore, the nozzle is a flat-mouth nozzle.

[0013] Furthermore, a servo electric cylinder is provided between the rotating steering wheel and the vehicle body, and the servo electric cylinder is used to adjust the height of the vehicle body from the ground to adjust the operating height of the pressure plate, and then adjust the laying thickness of the concrete mortar.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The leveling plates on both sides adopt a symmetrical retractable structure, with a combined scraper front end and extended and retracted scraper sides, which are suitable for corridors with larger and smaller spaces.

[0016] 2. The concrete mortar return port on the leveling plate can better recycle excess concrete mortar during construction in corners, walls and the ground, effectively solving the problem of uneven compaction in corners and the problem of excess concrete mortar.

[0017] 3. The nozzle can rotate 360°, and the concrete mortar can be sprayed in advance to facilitate compaction by the pressing plate.

[0018] 4. The leveling plate can extend and retract to extend the working length, and the vehicle body can achieve free steering by rotating the steering wheel; the vehicle body can be raised and lowered by the servo electric cylinder, which has strong adaptability, effectively improving the working efficiency and the uniform laying of concrete mortar without excess residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the smoothing pressing plate of the present invention.

[0022] In the figure: 1. vehicle body; 2. pressure sensor; 3. leveling pressure plate; 4. concrete mortar return port; 5. rotating steering wheel; 6. nozzle; 7. rotating nozzle; 8. bracket; 9. photoelectric switch; 10. detection board; 11. rotation control motor; 12. slewing support; 13. mounting frame; 14. guide rail; 15. connecting frame; 16. lead screw; 17. translation control motor; 18. concrete mortar pool; 19. mortar pump; 20. side panel; 21. pressure plate; 22. bending plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1 – Figure 3As shown, embodiment 1, a concrete mortar smoothing device, includes a vehicle body 1 and a control unit, a rotating steering wheel 5 (rotatable and movable by 360°) is provided under the vehicle body 1, smoothing pressing plates 3 are symmetrically installed on both sides of the vehicle body 1 through a telescopic mechanism, a concrete mortar pool 18 is provided in the vehicle body 1, a mortar pump 19 is provided on the vehicle body 1 on one side of the concrete mortar pool 18, one side of the mortar pump 19 is connected to the concrete mortar pool 18, and the other side of the mortar pump 19 is connected to the mortar pipe, the mortar pipe is connected to the rotating nozzle 7 through a slewing support 12, a sealing member, etc. (existing technology), the slewing support 12 is driven to rotate by a driving structure, and the front end of the rotating nozzle 7 is provided with There is a nozzle 6, and the smoothing plate 3 is a symmetrical semi-circular platen, which includes a side plate 20 and a platen 21. The side plate 20 plays a role in spreading the concrete mortar, and the platen 21 plays a role in compacting the concrete mortar under the dead weight of the vehicle body 1. Concrete mortar return ports 4 are provided at the four top corners of the semi-circular platen. When the smoothing plate 3 is at the wall or at the corner, excess concrete mortar will be pressed into the side plate 20 and the platen 21 through the concrete mortar return port 4 (the amount of refluxed concrete mortar is small and needs to be shoveled out manually) to ensure that the corners are smoothed evenly and no excess concrete mortar remains; the mortar pump 19 is responsible for pumping out the concrete mortar.

[0025] Embodiment 2, a concrete mortar leveling device, the side plate 20 and the pressing plate 21 are arranged at right angles, and a bent plate 22 is provided at the rear end of the pressing plate 21, and the bent plate 22 is used to scrape away excess concrete mortar to ensure that the concrete mortar has a relatively uniform thickness, which is convenient for the subsequent pressing plate 21 to compact; the driving structure includes a rotation control motor 11, the rotation control motor 11 is arranged on the vehicle body 1, and a transmission gear is provided on the rotation control motor 11, and the transmission gear is meshed with the slewing support 12; it also includes a rotation detection device; the rotation detection device includes a photoelectric switch 9 and a detection plate 10, the photoelectric switch 9 is installed on the rotating nozzle 7 through the bracket 8, and the detection plate 10 is installed on the vehicle body 1 at 90° intervals, the rotation control motor 11 drives the slewing support 12 through the transmission gear to rotate the rotating nozzle 7, and after the photoelectric switch 9 on the rotating nozzle 7 detects the detection plate 10 at the corresponding position, the rotation control motor 11 stops to ensure that it can operate in all directions; the side of each side Pressure sensors 2 are symmetrically arranged on the top of the plates 20. When the pressure sensors 2 touch the wall, the rotating steering wheel 5 will rotate and change the moving direction; the telescopic mechanism includes a translation control motor 17 symmetrically arranged on the vehicle body 1, and a mounting plate is symmetrically arranged on the vehicle body 1 above the concrete mortar pool 18. The mounting plate is symmetrically arranged with a guide rail 14, and a screw 16 is also arranged on the mounting plate through a screw seat. The translation control motor 17 drives the screw 16 to rotate, and the pressing plates 21 of the smoothing pressing plates 3 on both sides are symmetrically provided with mounting frames 13. The mounting frames 13 on both sides are connected by a connecting frame 15, and the screw 16 is connected to the connecting frame 15 through a screw nut, and the connecting frame 15 is also slidably connected to the guide rail 14; the nozzle 6 is a flat nozzle; a servo electric cylinder is also arranged between the rotating steering wheel 5 and the vehicle body 1, and the servo electric cylinder is used to adjust the height of the vehicle body 1 from the ground to adjust the working height of the pressing plate 21, and then adjust the laying thickness of the concrete mortar. The rest is the same as Example 1.

[0026] The control unit is respectively connected to the rotating steering wheel 5, the mortar pump 19, the rotating control motor 11, the photoelectric switch 9, the pressure sensor 2 and the translation control motor 17, so that each part cooperates organically (existing technology). Figure 2 As shown, the length of the side panel 20 and the pressure plate 21 located on the side is greater than the length of the vehicle body 1, ensuring that there is enough construction area in front of the left or right side of the vehicle body 1 during horizontal construction (suitable for larger space operations); the width of the side panel 20 and the pressure plate 21 located at the front and rear ends is greater than the width of the vehicle body 1, ensuring that there is enough construction area in front of the front end or rear end of the vehicle body 1 when the leveling pressure plates 3 at both ends are combined (suitable for smaller space operations).

[0027] Pour the mixed concrete mortar into the concrete mortar pool 18, and set the width and length of the working area; adjust the height of the pressing plate 21 from the ground (i.e., the thickness of the mortar) by adjusting the servo electric cylinder. When in use, select the working end to be used according to the size of the working space. For example, if you are working in a small space, you can choose to work at the narrow end. The nozzle 6 is driven by the rotating control motor 11 to spray the concrete mortar to the front end of the vehicle body 1. The vehicle body 1 moves horizontally, and the pressing plate 21 at the front end smoothes the concrete mortar in front. When it is about to move to the corner or wall, according to the set working area size, the nozzle 6 will automatically rotate from the side of the moving direction to the front of the moving direction (this process is a slow rotation spraying to ensure that there is enough concrete mortar in the corner). When the amount of concrete mortar sprayed in front of the vehicle body 1 in the moving direction is sufficient, the vehicle body 1 stops moving, and the translation control motor 17 drives the side pressing plate 21 to extend to spray the corner. After leveling and compacting, the excess concrete mortar will flow back through the concrete mortar return port 4 (very small amount). At this time, the vehicle body 1 will retreat and move to the next row of work. During the retreat, the concrete mortar return port 4 will scrape away the excess concrete mortar at the junction of the wall and the ground (small amount). During the downward retreat, the side pressure plate 21 will also be pre-leveled once. The vehicle body 1 will move in the opposite direction of the working row after the retreat (the pressure plate 21 that has just been extended is retracted, and when the operation reaches the other side, the pressure plate 21 on the opposite side will extend). The nozzle 6 rotates and resets, and sprays the working row after the retreat again. This can be repeated. This process is manually coordinated with the laying of bricks. The pressure sensor 2 detects the wall, and the pressure plate 21 stops extending. For large space operations, the longer pressure plate end is used as the main operating end. The principle is the same and will not be repeated.

Claims

1. A concrete mortar leveling device, comprising a vehicle body (1), a rotating steering wheel (5) is provided below the vehicle body (1), and is characterized in that: The vehicle body (1) is symmetrically provided with smoothing plates (3) via a telescopic mechanism on both sides. A concrete mortar pool (18) is provided in the vehicle body (1). A mortar pump (19) is provided on the vehicle body (1) on one side of the concrete mortar pool (18). One side of the mortar pump (19) is connected to the concrete mortar pool (18). The other side of the mortar pump (19) is connected to a mortar pipe. The mortar pipe is connected to a rotating nozzle (7) via a slewing support (12). The slewing support (12) is driven to rotate via a driving structure. A nozzle (6) is provided at the front end of the rotating nozzle (7). The smoothing plates (3) are provided with a concrete mortar pool (18). The semi-circular pressing plate is symmetrical and comprises a side plate (20) and a pressing plate (21). The side plate (20) plays a role in spreading the concrete mortar, and the pressing plate (21) plays a role in compacting the concrete mortar under the deadweight of the vehicle body (1). Concrete mortar return ports (4) are provided at the four top corners of the semi-circular pressing plate. When the smoothing pressing plate (3) is placed at the wall side or at the wall corner, the excess concrete mortar will be pressed into the side plate (20) and the pressing plate (21) through the concrete mortar return ports (4) to ensure that the wall corner is smoothed evenly and no excess concrete mortar remains.

2. The concrete mortar leveling device according to claim 1, characterized in that: The side plates (20) and the pressing plate (21) are arranged at right angles, and a bent plate (22) is provided at the rear end of the pressing plate (21). The bent plate (22) is used to scrape away excess concrete mortar to ensure that the concrete mortar has a relatively uniform thickness, which facilitates subsequent compaction by the pressing plate (21).

3. The concrete mortar leveling device according to claim 1, characterized in that: The driving structure comprises a rotation control motor (11), which is arranged on the vehicle body (1), and a transmission gear is arranged on the rotation control motor (11), which is meshed with a slewing support (12); and also comprises a rotation detection device.

4. The concrete mortar leveling device according to claim 3, characterized in that: The rotation detection device comprises a photoelectric switch (9) and a detection plate (10), wherein the photoelectric switch (9) is mounted on the rotating nozzle (7) via a bracket (8), and the detection plate (10) is mounted on the vehicle body (1) at intervals of 90 degrees. The rotation control motor (11) drives the slewing support (12) via a transmission gear to rotate the rotating nozzle (7), and after the photoelectric switch (9) on the rotating nozzle (7) detects the detection plate (10) at a corresponding position, the rotation control motor (11) stops rotating.

5. The concrete mortar leveling device according to claim 1, characterized in that: A pressure sensor (2) is symmetrically provided on the top of each side panel (20). When the pressure sensor (2) touches the wall, the rotary steering wheel (5) will rotate and change the moving direction.

6. The concrete mortar leveling device according to claim 1, characterized in that: The telescopic mechanism comprises a translation control motor (17) symmetrically arranged on the vehicle body (1), a mounting plate symmetrically arranged on the vehicle body (1) above the concrete mortar pool (18), a guide rail (14) symmetrically arranged on the mounting plate, a lead screw (16) also arranged on the mounting plate through a lead screw seat, the translation control motor (17) drives the lead screw (16) to rotate, mounting frames (13) symmetrically arranged on the pressure plates (21) of the smoothing pressure plates (3) on both sides, the mounting frames (13) on both sides are connected through a connecting frame (15), the lead screw (16) is connected to the connecting frame (15) through a lead screw nut, and the connecting frame (15) is also slidably connected to the guide rail (14).

7. The concrete mortar leveling device according to claim 1, characterized in that: The nozzle (6) is a flat nozzle.

8. The concrete mortar leveling device according to claim 1, characterized in that: A servo electric cylinder is also provided between the rotating steering wheel (5) and the vehicle body (1), and the servo electric cylinder is used to adjust the height of the vehicle body (1) from the ground.

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