Fuel power troweling machine

Abstract

The utility model provides a fuel power troweling machine. The troweling machine comprises a machine shell, an operating rod installed on the machine shell, an engine installed on the machine shell, an oil tank installed on the machine shell, a speed reducer installed in the machine shell and connected with an output shaft of the engine, a cross installed on an output shaft of the speed reducer, a tool rest installed on the cross and a blade installed on the tool rest. The carriage bolt is installed on the tool rest and used for adjusting the inclination angle of a blade, the blade pressing disc is arranged outside the cross in a vertically movable and sleeving mode and abuts against the top of the carriage bolt, the bearing pressing disc is arranged outside the cross in a vertically movable and sleeving mode and located above the blade pressing disc, and the first bearing is arranged between the blade pressing disc and the bearing pressing disc. The shifting fork assembly is arranged on the machine shell and used for pressing the bearing pressing disc downwards.

Description

Technical Field

[0001] This utility model belongs to the field of power trowel technology, specifically relating to a fuel-powered power trowel. Background Technology

[0002] A power trowel is a tool used for roughing and smoothing concrete surfaces. Machine-applied surfaces are smoother and flatter than those applied manually, significantly improving the density and wear resistance of the concrete surface. It also greatly increases work efficiency compared to manual labor. Power trowels are widely used for leveling, smoothing, and finishing concrete surfaces in high-standard factories, warehouses, parking lots, plazas, airports, and framed buildings.

[0003] Depending on the flatness of the ground, workers need to control the angle adjustment mechanism to change the tilt angle of the trowel relative to the ground, thereby smoothing the ground with the trowel. Common methods of controlling the angle adjustment mechanism usually require pressing down a lever to adjust the trowel's tilt angle. During this process, the user must control both the downward pressure and the movement of the power trowel, which places high demands on the operator and is inconvenient to operate. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a fuel-powered power trowel.

[0005] To achieve the above and other related objectives, this utility model provides a fuel-powered power trowel, which includes a housing, a control lever mounted on the housing, an engine mounted on the housing, an oil tank mounted on the housing, a reducer mounted inside the housing and connected to the output shaft of the engine, a crossbar mounted on the output shaft of the reducer, a blade holder mounted on the crossbar, a blade mounted on the blade holder, a carriage bolt mounted on the blade holder for adjusting the blade's inclination angle, a blade pressure plate that is movably sleeved outside the crossbar and abuts against the top of the carriage bolt, a bearing pressure plate that is movably sleeved outside the crossbar and located above the blade pressure plate, a first bearing disposed between the blade pressure plate and the bearing pressure plate, and a fork assembly disposed on the housing for pressing down the bearing pressure plate.

[0006] The fork assembly includes a fork and a vertical lead screw. The middle part of the fork is rotatably connected to the housing via a connecting pin. The first end of the fork abuts against the top surface of the bearing pressure plate. The second end of the fork is provided with a vertical threaded hole through which the lead screw passes and is screwed to the lead screw. The housing is provided with a vertical hole through which the lead screw passes. The lead screw is rotatably connected to the vertical hole via a second bearing. The top end of the lead screw is provided with a handwheel that drives the lead screw to rotate.

[0007] Optionally, the inner wall surface of the second bearing is fixedly connected to the lead screw, and the outer wall surface of the second bearing is fixedly connected to the inner wall surface of the vertical hole.

[0008] Optionally, the joystick is a telescopic joystick, and the joystick is equipped with a control switch, a throttle controller and a control handle.

[0009] Optionally, the fork includes a first clamping plate and a second clamping plate that are arranged opposite to each other and fixedly connected. A transition block is provided between the second ends of the first clamping plate and the second clamping plate and can be rotatably clamped between the first clamping plate and the second clamping plate. A vertical threaded hole is provided on the transition block. The two sides of the transition block are rotatably connected to the first clamping plate and the second clamping plate respectively through a rotating shaft.

[0010] As described above, the fuel-powered power trowel of this invention has the following beneficial effects: When using the fuel-powered power trowel of this invention, rotating the handwheel drives the lead screw to rotate around the second bearing. The rotation of the lead screw drives the second end of the fork to move upward. At this time, the first end of the fork rotates downward around the connecting pin. The first end of the fork pushes the blade pressure plate and the bearing pressure plate downward, and the bearing pressure plate pushes the carriage bolt downward, thereby causing the blade to tilt to the required angle. The starter motor drives the reducer to rotate, the reducer's electric crossbar rotates, and the crossbar drives the blade holder and blade to rotate, thus smoothing the concrete. During construction, the operator no longer needs to press down the control lever to control the blade tilt angle, making it convenient for users to operate. Attached Figure Description

[0011] Figure 1 The diagram shown is a cross-sectional view of the fuel-powered power trowel provided by this utility model.

[0012] Figure 2 The image shown is an enlarged view of point A in the cross-sectional structure of the fuel-powered power trowel provided by this utility model;

[0013] Figure 3 The diagram shown is a structural schematic of the fuel-powered power trowel provided by this utility model.

[0014] Figure 4 The diagram shown is an enlarged view of point B in the structure of the fuel-powered power trowel provided by this utility model. Detailed Implementation

[0015] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. For ease of explanation, when detailing the embodiments of this utility model, the cross-sectional views showing the device structure may be partially enlarged without adhering to the general scale, and the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0016] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for devices in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it may be the only layer between the two layers, or there may be one or more layers in between.

[0017] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. To keep the illustrations as concise as possible, not all structures are indicated in the drawings.

[0018] like Figure 1-4 As shown, this embodiment provides a fuel-powered power trowel 10, which includes a housing 11, a control lever 32 mounted on the housing 11, an engine 12 mounted on the housing 11, an oil tank 13 mounted on the housing 11, a reducer 14 mounted inside the housing 11 and connected to the output shaft of the engine 12, a crossbar 15 mounted on the output shaft of the reducer 14, a blade holder 16 mounted on the crossbar 15, a blade 17 mounted on the blade holder 16, a carriage bolt 18 mounted on the blade holder 16 for adjusting the inclination angle of the blade 17, a blade pressure plate 19 that is movably sleeved outside the crossbar 15 and abuts against the top of the carriage bolt 18, a bearing pressure plate 20 that is movably sleeved outside the crossbar 15 and located above the blade pressure plate 19, a first bearing 21 disposed between the blade pressure plate 19 and the bearing pressure plate 20, and a fork assembly disposed on the housing 11 for pressing down the bearing pressure plate 20.

[0019] The fork assembly includes a fork 22 and a vertical lead screw 24. The middle part of the fork 22 is rotatably connected to the housing 11 via a connecting pin 23. The first end of the fork 22 abuts against the top surface of the bearing pressure plate 20. The second end of the fork 22 is provided with a vertical threaded hole 25 through which the lead screw 24 passes and is screwed to the lead screw 24. The housing 11 is provided with a vertical hole 26 through which the lead screw 24 passes. The lead screw 24 is rotatably connected to the vertical hole 26 via a second bearing 27. The top end of the lead screw 24 is provided with a handwheel 28 for driving the lead screw 24 to rotate.

[0020] When using the fuel-powered power trowel of this invention, rotating the handwheel 28 drives the lead screw 24 to rotate around the second bearing 27. The rotation of the lead screw 24 causes the second end of the fork 22 to move upwards. At this time, the first end of the fork 22 rotates downwards around the connecting pin 23. The first end of the fork 22 pushes the blade pressure plate 19 and bearing pressure plate 20 downwards, and the bearing pressure plate 20 pushes the carriage bolt 18 downwards, thereby causing the blade 17 to tilt to the desired angle. Starting the motor drives the reducer 14 to rotate, and the reducer 14's electric crossbar 15 rotates. The crossbar 15 drives the blade holder 16 and the blade 17 to rotate, achieving the smoothing of the concrete. During construction, the operator no longer needs to press down the control lever 32 to control the tilt angle of the blade 17, making it easier for the user to operate.

[0021] Specifically, the inner wall of the second bearing 27 is fixedly connected to the lead screw 24, and the outer wall of the second bearing 27 is fixedly connected to the inner wall of the vertical hole 26.

[0022] Furthermore, the control lever 32 is a telescopic lever, and the control lever 32 is equipped with a control switch 29, a throttle controller 30, and a control handle 31.

[0023] In this embodiment, as Figure 4 As shown, the fork 22 includes a first clamping plate 33 and a second clamping plate 34 that are arranged opposite to each other and fixedly connected. A transition block 35 is provided between the second ends of the first clamping plate 33 and the second clamping plate 34 and can be rotatably clamped between the first clamping plate 33 and the second clamping plate 34. A vertical threaded hole 25 is provided on the transition block 35. The two sides of the transition block 35 are rotatably connected to the first clamping plate 33 and the second clamping plate 34 through a rotating shaft 36, respectively.

[0024] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A fuel-powered power trowel, characterized in that, The power trowel includes a housing, a control lever mounted on the housing, an engine mounted on the housing, an oil tank mounted on the housing, a reducer mounted inside the housing and connected to the output shaft of the engine, a crossbar mounted on the output shaft of the reducer, a tool holder mounted on the crossbar, a blade mounted on the tool holder, a carriage bolt mounted on the tool holder for adjusting the blade's inclination angle, a blade pressure plate that is movably fitted around the crossbar and abuts against the top of the carriage bolt, a bearing pressure plate that is movably fitted around the crossbar and located above the blade pressure plate, a first bearing disposed between the blade pressure plate and the bearing pressure plate, and a fork assembly disposed on the housing for pressing down the bearing pressure plate. The fork assembly includes a fork and a vertical lead screw. The middle part of the fork is rotatably connected to the housing via a connecting pin. The first end of the fork abuts against the top surface of the bearing pressure plate. The second end of the fork is provided with a vertical threaded hole through which the lead screw passes and is screwed to the lead screw. The housing is provided with a vertical hole through which the lead screw passes. The lead screw and the vertical hole are rotatably connected via a second bearing. The top end of the lead screw is provided with a handwheel that drives the lead screw to rotate.

2. The fuel-powered power trowel according to claim 1, characterized in that, The inner wall of the second bearing is fixedly connected to the lead screw, and the outer wall of the second bearing is fixedly connected to the inner wall of the vertical hole.

3. The fuel-powered power trowel according to claim 1, characterized in that, The control joystick is a telescopic joystick, and it is equipped with a control switch, a throttle controller, and a control handle.

4. The fuel-powered power trowel according to claim 1, characterized in that, The fork includes a first clamping plate and a second clamping plate that are arranged opposite to each other and fixedly connected. A transition block is provided between the second ends of the first clamping plate and the second clamping plate and can be rotatably clamped between the first clamping plate and the second clamping plate. The vertical threaded hole is provided on the transition block. The two sides of the transition block are rotatably connected to the first clamping plate and the second clamping plate through rotating shafts, respectively.

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