A concrete placing screed

Abstract

The utility model belongs to the technical field of building construction equipment, disclose a kind of trowelling device for concrete pouring. This kind of trowelling device for concrete pouring includes machine case, and one end of machine case is equipped with extension rod, and one end of extension rod is equipped with machine cover, and both sides of machine cover are equipped with fixed frame, and the inside of fixed frame is rotatably connected with first rotating shaft, and both ends of first rotating shaft are equipped with connecting frame, and the bottom of connecting frame is equipped with rack, and the bottom of rack is rotatably connected with second rotating shaft, and the bottom of second rotating shaft is equipped with trowelling disc, and the other end of machine case is equipped with handle, and the inside of machine case is equipped with angle adjusting mechanism for rotating first rotating shaft, and one side of rack is equipped with driving mechanism for rotating second rotating shaft, and angle adjusting mechanism includes first motor, and the outside of first motor and the inside of machine case are fixedly connected. The utility model can effectively realize handle angle adjusting function, satisfy the use demand of different users, and have higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and specifically discloses a smoothing device for concrete pouring. Background Technology

[0002] During the construction process, after the concrete is poured, its surface needs to be smoothed to ensure the flatness and density of the concrete surface and improve the quality of the concrete structure. At present, most concrete smoothing operations are carried out manually with a hand trowel.

[0003] Based on the above, the inventors of this application have discovered the following problems in the prior art: the current concrete pouring smoothing device does not have a handle angle adjustment function, making it difficult to adapt to the usage needs of different users.

[0004] Therefore, in view of this, the applicant has studied and improved the existing structure and its shortcomings, and provided a smoothing device for concrete pouring, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a smoothing device for concrete pouring, so as to solve the problem mentioned in the background art that the current smoothing devices for concrete pouring do not have a handle angle adjustment function, making it difficult to adapt to the usage needs of different users.

[0006] To solve the above problems, the technical solution proposed by this utility model is as follows:

[0007] A concrete pouring smoothing device includes a housing, an extension rod mounted at one end of the housing, a cover mounted at one end of the extension rod, fixed frames mounted on both sides of the cover, a first rotating shaft rotatably connected to the inner side of the fixed frames, connecting frames mounted at both ends of the first rotating shaft, a frame mounted at the bottom end of the connecting frames, a second rotating shaft rotatably connected to the bottom end of the frame, a smoothing disc mounted at the bottom end of the second rotating shaft, a handle mounted at the other end of the housing, an angle adjustment mechanism for rotating the first rotating shaft mounted inside the housing, and a drive mechanism for rotating the second rotating shaft mounted on one side of the frame.

[0008] Furthermore, the angle adjustment mechanism includes a first motor, the outer side of the first motor and the inner side of the housing are fixedly connected, a drive shaft is installed at the output end of the first motor, one end of the drive shaft passes through the inner side of the extension rod and the inner side of the housing, a worm is installed at one end of the drive shaft, a worm wheel is fitted on the outer side of the first rotating shaft, and the worm and the worm wheel mesh.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, through the meshing of the worm and the worm wheel, the first motor of the angle adjustment mechanism drives the worm to rotate through the transmission shaft, and meshes with the worm wheel to drive the first rotating shaft to rotate, thereby realizing the automatic adjustment of the smoothing disc angle.

[0010] Furthermore, a pair of retainers are rotatably connected to the outer side of the drive shaft, and the top and bottom ends of the retainers are respectively fixedly connected to the inner wall of the extension rod.

[0011] The beneficial effect of adopting the above-mentioned further solution is that a pair of retainers are rotatably connected to the outside of the drive shaft to prevent the drive shaft from shifting due to vibration during rotation, thus ensuring that the worm and worm wheel are always precisely meshed.

[0012] Furthermore, the drive mechanism includes a second motor, one side of which is fixedly connected to one side of the frame. Both the output end of the second motor and the top end of the second shaft are fitted with bevel gears, and the second motor and the second shaft are connected by bevel gear transmission.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, by fitting bevel gears at the output end of the second motor and the top end of the second shaft, the second motor of the drive mechanism drives the second shaft to rotate through bevel gear transmission, thereby converting the horizontal power of the motor into the vertical rotational force of the smoothing disc.

[0014] Furthermore, the bottom outer edge of the smoothing disc is inclined.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by making the bottom outer side of the smoothing plate inclined, the frictional resistance between the smoothing edge and the concrete surface can be reduced, ensuring that the concrete surface is flat overall.

[0016] Furthermore, a battery compartment is installed at the bottom of the chassis, and a lithium battery is installed inside the battery compartment.

[0017] The beneficial effects of adopting the above-mentioned further solution are: by installing a lithium battery inside the battery box, the device is provided with a portable power source, freeing it from the constraints of cables and making it convenient for use at construction sites where there is no external power source.

[0018] Furthermore, an adjustment panel is installed on the top of the chassis.

[0019] The beneficial effects of adopting the above-mentioned further solution are: by installing an adjustment panel on the top of the chassis, the angle adjustment mechanism and the speed of the drive mechanism can be controlled, and the operator can accurately set the parameters according to the degree of concrete hardening or the need for smoothing.

[0020] Compared with the prior art, the advantages and beneficial effects of this utility model are:

[0021] This utility model discloses a concrete pouring smoothing device. Through an angle adjustment mechanism, the first rotating shaft rotates, causing the connecting frame to adjust the angle of the machine frame and smoothing disc to adapt to different smoothing needs. The drive mechanism drives the second rotating shaft and smoothing disc to rotate, achieving automatic smoothing of the concrete surface. The handle is easy for the operator to hold and control. Through the meshing of a worm and a worm wheel, the first motor of the angle adjustment mechanism drives the worm to rotate via a transmission shaft, which in turn meshes with the worm wheel to drive the first rotating shaft, achieving automatic adjustment of the smoothing disc angle. A pair of retainers are rotatably connected to the outside of the transmission shaft to prevent the transmission shaft from shifting due to vibration during rotation, ensuring that the worm and worm wheel are always precisely meshed. Bevel gears are fitted at the output end of the second motor and the top of the second rotating shaft to achieve… The second motor of the drive mechanism drives the second rotating shaft to rotate via bevel gear transmission, converting the horizontal power of the motor into the vertical rotational force of the smoothing disc. The inclined design of the bottom outer edge of the smoothing disc reduces the frictional resistance between the smoothing edge and the concrete surface, ensuring an overall smooth concrete surface. A lithium battery installed inside the battery box provides portable power for the device, eliminating the need for cables and facilitating use at construction sites without external power. An adjustment panel installed on the top of the casing allows for control of the angle adjustment mechanism and the rotational speed of the drive mechanism. Operators can precisely set parameters according to the degree of concrete hardening or smoothing requirements. This invention effectively realizes the handle angle adjustment function, meeting the needs of different users and possessing high practical value. Attached Figure Description

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of a concrete pouring smoothing device according to this utility model;

[0023] Figure 2 This is the second three-dimensional structural schematic diagram of a concrete pouring smoothing device according to the present invention.

[0024] Figure 3 This is the third three-dimensional structural schematic diagram of a concrete pouring smoothing device according to the present invention;

[0025] Figure 4 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0026] Figure 5 This is a cross-sectional view of the casing of a smoothing device for concrete pouring according to the present invention.

[0027] The reference numerals in the attached diagram are explained as follows: 1. Chassis; 2. Extension rod; 3. Cover; 4. Fixing frame; 5. First rotating shaft; 6. Connecting frame; 7. Frame; 8. Second rotating shaft; 9. Smoothing disc; 10. Drive mechanism; 1001. Second motor; 1002. Bevel gear; 11. Angle adjustment mechanism; 1101. First motor; 1102. Drive shaft; 1103. Cage; 1104. Worm gear; 1105. Worm wheel; 12. Battery box; 13. Handle; 14. Adjustment panel. Detailed Implementation

[0028] The applicant will now provide a clear and complete description of the technical solutions in the embodiments of this utility model with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please see Figures 1-5 A concrete pouring smoothing device includes a housing 1, an extension rod 2 installed at one end of the housing 1, a cover 3 installed at one end of the extension rod 2, and fixed frames 4 installed on both sides of the cover 3. A first rotating shaft 5 is rotatably connected to the inner side of the fixed frames 4. Connecting frames 6 are installed at both ends of the first rotating shaft 5. A frame 7 is installed at the bottom end of the connecting frames 6. A second rotating shaft 8 is rotatably connected to the bottom end of the frame 7. A smoothing disc 9 is installed at the bottom end of the second rotating shaft 8. A handle 13 is installed at the other end of the housing 1. An angle adjustment mechanism 11 for rotating the first rotating shaft 5 is installed inside the housing 1. A drive mechanism 10 for rotating the second rotating shaft 8 is installed on one side of the frame 7. By setting the angle adjustment mechanism 11, the first rotating shaft 5 is rotated, which causes the connecting frames 6 to drive the frame 7 and the smoothing disc 9 to adjust their angles to adapt to different smoothing needs. The drive mechanism 10 drives the second rotating shaft 8 and the smoothing disc 9 to rotate, thereby realizing automatic smoothing of the concrete surface. The handle 13 is convenient for operators to hold and control.

[0031] Furthermore, the angle adjustment mechanism 11 includes a first motor 1101, the outer side of which is fixedly connected to the inner side of the housing 1. A drive shaft 1102 is installed at the output end of the first motor 1101. One end of the drive shaft 1102 passes through the inner side of the extension rod 2 and the inner side of the housing 3. A worm gear 1104 is installed at one end of the drive shaft 1102. A worm wheel 1105 is fitted on the outer side of the first rotating shaft 5. The worm gear 1104 and the worm wheel 1105 mesh. A pair of retainers 1103 are rotatably connected to the outer side of the drive shaft 1102. The top and bottom ends of the retainers 1103 are fixedly connected to the inner wall of the extension rod 2, respectively. The drive mechanism 10 includes a second motor 1001, one side of which is fixedly connected to one side of the frame 7. A bevel gear 1002 is fitted on the output end of the second motor 1001 and the top end of the second rotating shaft 8. The first motor 1101 of the angle adjustment mechanism 11 drives the worm 1104 to rotate through the transmission shaft 1102, and drives the first rotating shaft 5 to rotate through the meshing of the worm 1104 and the worm wheel 1105, thereby realizing the automatic adjustment of the angle of the smoothing disc 9. A pair of retainers 1103 are rotatably connected to the outside of the transmission shaft 1102 to prevent the transmission shaft 1102 from shifting due to vibration during rotation, and to ensure that the worm 1104 and the worm wheel 1105 are always precisely meshed. The output end of the second motor 1001 and the top end of the second rotating shaft 8 are both fitted with bevel gears 1002, so that the second motor 1001 of the drive mechanism 10 drives the second rotating shaft 8 to rotate through the transmission of the bevel gears 1002, converting the horizontal power of the motor into the vertical rotational force of the smoothing disc 9.

[0032] Furthermore, the bottom outer edge of the smoothing disc 9 is inclined, and a battery box 12 is installed at the bottom of the housing 1. The battery box 12 contains a lithium battery, and an adjustment panel 14 is installed at the top of the housing 1. The inclined bottom outer edge of the smoothing disc 9 reduces the frictional resistance between the smoothing edge and the concrete surface, ensuring an overall smooth concrete surface. The lithium battery inside the battery box 12 provides portable power for the device, freeing it from cable constraints and facilitating use at construction sites without external power. The adjustment panel 14 at the top of the housing 1 controls the angle adjustment mechanism 11 and the rotation speed of the drive mechanism 10, allowing operators to precisely set parameters according to the degree of concrete hardening or smoothing requirements.

[0033] Specifically, the working principle of the concrete pouring smoothing device of this utility model is as follows: During use, the first rotating shaft 5 rotates through the angle adjustment mechanism 11, causing the connecting frame 6 to drive the frame 7 and smoothing disc 9 to adjust their angles to adapt to different smoothing needs. The drive mechanism 10 drives the second rotating shaft 8 and smoothing disc 9 to rotate, achieving automatic smoothing of the concrete surface. The handle 13 facilitates operator grip and control. Through the meshing of the worm gear 1104 and worm wheel 1105, the first motor 1101 of the angle adjustment mechanism 11 drives the worm gear 1104 to rotate via the transmission shaft 1102, meshing with the worm wheel 1105 to drive the first rotating shaft 5 to rotate, achieving automatic adjustment of the smoothing disc 9 angle. A pair of retainers 1103 are rotatably connected to the outside of the transmission shaft 1102 to prevent the transmission shaft 1102 from shifting due to vibration during rotation, ensuring that the worm gear 1104 and worm wheel 1105 are always precisely meshed. Both the output end of the machine 1001 and the top of the second rotating shaft 8 are fitted with bevel gears 1002, enabling the second motor 1001 of the drive mechanism 10 to drive the second rotating shaft 8 to rotate via the bevel gears 1002, converting the horizontal power of the motor into the vertical rotational force of the smoothing disc 9. The bottom outer side of the smoothing disc 9 is inclined, which reduces the frictional resistance between the smoothing edge and the concrete surface, ensuring the overall flatness of the concrete surface. A lithium battery is installed inside the battery box 12 to provide portable power for the device, freeing it from cable constraints and facilitating use at construction sites without external power. An adjustment panel 14 is installed on the top of the machine box 1, which can control the angle adjustment mechanism 11 and the speed of the drive mechanism 10. Operators can accurately set parameters according to the degree of concrete solidification or smoothing requirements. This utility model can effectively realize the grip angle adjustment function, meet the usage needs of different users, and has high practical value.

Claims

1. A leveling device for concrete pouring, characterized in that: The device includes a chassis (1), an extension rod (2) installed at one end of the chassis (1), a cover (3) installed at one end of the extension rod (2), a fixing frame (4) installed on both sides of the cover (3), a first rotating shaft (5) rotatably connected to the inner side of the fixing frame (4), a connecting frame (6) installed at both ends of the first rotating shaft (5), a frame (7) installed at the bottom end of the connecting frame (6), a second rotating shaft (8) rotatably connected to the bottom end of the frame (7), a smoothing plate (9) installed at the bottom end of the second rotating shaft (8), a handle (13) installed at the other end of the chassis (1), an angle adjustment mechanism (11) for rotating the first rotating shaft (5) installed inside the chassis (1), and a drive mechanism (10) for rotating the second rotating shaft (8) installed on one side of the frame (7).

2. The leveling device for concrete pouring according to claim 1, characterized in that: The angle adjustment mechanism (11) includes a first motor (1101), the outer side of the first motor (1101) is fixedly connected to the inner side of the housing (1), the output end of the first motor (1101) is equipped with a transmission shaft (1102), one end of the transmission shaft (1102) passes through the inner side of the extension rod (2) and the inner side of the cover (3), one end of the transmission shaft (1102) is equipped with a worm (1104), and a worm wheel (1105) is fitted on the outer side of the first rotating shaft (5), and the worm (1104) and the worm wheel (1105) mesh.

3. A leveling device for concrete pouring according to claim 2, characterized in that: A pair of retainers (1103) are rotatably connected to the outside of the drive shaft (1102), and the top and bottom ends of the retainers (1103) are respectively fixedly connected to the inner wall of the extension rod (2).

4. A leveling device for concrete pouring according to claim 1, characterized in that: The drive mechanism (10) includes a second motor (1001), one side of the second motor (1001) is fixedly connected to one side of the frame (7), and bevel gears (1002) are fitted on the output end of the second motor (1001) and the top end of the second shaft (8). The second motor (1001) and the second shaft (8) are connected by bevel gears (1002).

5. A leveling device for concrete pouring according to claim 1, characterized in that: The bottom outer side of the smoothing plate (9) is inclined.

6. A leveling device for concrete pouring according to claim 1, characterized in that: A battery box (12) is installed at the bottom of the chassis (1), and a lithium battery is installed inside the battery box (12).

7. A leveling device for concrete pouring according to claim 1, characterized in that: An adjustment panel (14) is installed on the top of the chassis (1).

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