Splash resistant maintenance free screed device

Abstract

This utility model provides a splash-proof, maintenance-free troweling machine device. The troweling machine device includes a housing, a drive motor fixed on the housing, a first gear disposed on the drive shaft of the drive motor and located inside the housing, a gear set rotatably disposed inside the housing and meshing with the first gear, an output shaft extending from inside the housing and rotatably connected to the housing, an output gear disposed on the output shaft and meshing with the gear set, and a troweling assembly mounted on the extended end of the output shaft and the housing. The troweling assembly includes a rotating seat mounted on the output shaft and rotating with the output shaft, multiple blade arms mounted on the rotating seat, troweling blades mounted on the blade arms, a carriage bolt disposed on the blade arms, a pressure plate assembly movably sleeved on the output shaft and used to push the carriage bolt downward, and a cover fixed to the bottom of the housing and cooperating with the rotating seat to cover the first end of the fork and the pressure plate assembly.

Description

Technical Field

[0001] This utility model belongs to the field of troweling machines, specifically relating to a splash-proof, maintenance-free troweling machine device. Background Technology

[0002] A floor trowel is a machine used to smooth floor surfaces made of concrete, cement, mortar, or other suitable mineral materials. It can perform both rough and fine finishing on concrete surfaces, resulting in smoother and flatter surfaces compared to those finished manually. This significantly improves the density and wear resistance of the concrete surface. Floor trowels are widely used for leveling, smoothing, and finishing concrete or other mineral material surfaces in high-standard factories, warehouses, parking lots, plazas, airports, and framed buildings.

[0003] Most existing trowels expose mechanisms such as the trowel fork, bearing plate, and output shaft. When the trowel blades are working, mortar is easily splashed onto these parts, requiring users to clean them after each use, which is inconvenient. 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 splash-proof, maintenance-free troweling machine device.

[0005] To achieve the above and other related objectives, this utility model provides a splash-proof, maintenance-free troweling machine device. The troweling machine device includes a housing, a drive motor fixed on the housing, a first gear disposed on the drive shaft of the drive motor and located inside the housing, a gear set rotatably disposed inside the housing and meshing with the first gear, an output shaft extending from inside the housing and rotatably connected to the housing, an output gear disposed on the output shaft and meshing with the gear set, and a troweling component installed on the extended end of the output shaft and on the housing.

[0006] The smoothing assembly includes a rotating seat mounted on the output shaft and rotating with the output shaft, multiple blade arms mounted on the rotating seat, smoothing blades mounted on the blade arms, a carriage bolt set on the blade arms, a pressure plate assembly movably sleeved on the output shaft and used to push the carriage bolt downward, a fork rotatably connected to the bottom of the housing and used to push the pressure plate assembly downward, a telescopic assembly rotatably mounted on the side wall of the housing and rotatably connected to the second end of the fork, and a cover fixed to the bottom of the housing and cooperating with the rotating seat to cover the first end of the fork and the pressure plate assembly.

[0007] Optionally, the housing is a circular housing, the rotating seat is a circular rotating seat, the top of the rotating seat is provided with at least one annular groove, and the bottom of the circular housing is provided with at least one protruding ring that can be rotatably inserted into the at least one annular groove.

[0008] Optionally, the at least one annular groove includes a first annular groove and a second annular groove, and the at least one protruding ring includes a first protruding ring rotatably inserted into the first annular groove and a second protruding ring rotatably inserted into the second annular groove.

[0009] Optionally, the rotary seat includes an inner liner fixedly mounted on the output shaft and an outer shell fixedly connected to the inner liner. The outer shell is provided with multiple insertion holes for the multiple cutter arms to be inserted and fixedly mounted.

[0010] Optionally, the pressure plate assembly includes a first pressure plate sleeved on the output shaft and abutting against the carriage bolt, a second pressure plate sleeved on the output shaft and abutting against the first end of the shift fork, and a bearing sleeved on the output shaft and located between the first and second pressure plates.

[0011] Optionally, the bottom of the housing is provided with a first adapter seat and a second adapter seat, and the middle part of the fork is rotatably connected between the first adapter seat and the second adapter seat via a first pivot.

[0012] Optionally, the side wall of the housing is provided with a third adapter and a fourth adapter, and the top of the telescopic assembly is rotatably connected between the third adapter and the fourth adapter via a second pivot.

[0013] Optionally, the telescopic rod of the telescopic assembly is rotatably connected to the second end of the fork via a third pivot, and the telescopic assembly is an electric push rod.

[0014] Optionally, the gear set includes a first rotating rod rotatably disposed within the housing, a second gear sleeved on the first rotating rod and rotating with the first rotating rod, a third gear sleeved on the first rotating rod and rotating with the first rotating rod, a second rotating rod rotatably disposed within the housing, a fourth gear sleeved on the second rotating rod and rotating with the second rotating rod, and a fifth gear sleeved on the second rotating rod and rotating with the second rotating rod. The second gear meshes with the first gear, the third gear meshes with the fifth gear, and the fourth gear meshes with the output gear.

[0015] Optionally, the first gear, second gear, third gear, fourth gear, fifth gear, and output gear are all helical gears.

[0016] As described above, the anti-splash maintenance-free troweling device of this utility model has the following beneficial effects: When using the anti-splash maintenance-free troweling device of this utility model, the drive motor drives the first gear to rotate through the drive shaft, the first gear drives the output gear to rotate through the gear set, and the output gear drives the output shaft to rotate. The output shaft drives the rotating seat and the blade arm and troweling blade mounted on the rotating seat to rotate, thereby realizing the troweling operation. In this process, the tilt angle of the troweling blade can be adjusted by controlling the extension and retraction of the telescopic component to push the pressure plate assembly downward, and the pressure plate assembly pushes the carriage bolt downward. Furthermore, by setting the rotating seat and the housing, the first end of the fork, the pressure plate assembly and the output shaft cover are placed inside the rotating seat and the housing, which can prevent mud from splashing into the rotating seat and the housing, reduce the parts of the troweling machine that need to be cleaned, and reduce the maintenance cost of the troweling machine. Attached Figure Description

[0017] Figure 1 The diagram shown is a first exploded structural schematic of the anti-splashing, maintenance-free troweling machine device provided by this utility model.

[0018] Figure 2 The diagram shown is a first structural schematic of the anti-splashing, maintenance-free troweling machine device provided by this utility model.

[0019] Figure 3 The diagram shown is a cross-sectional structural schematic of the anti-splashing, maintenance-free troweling machine device provided by this utility model.

[0020] Figure 4 This is a second structural schematic diagram of the anti-splashing, maintenance-free troweling machine device provided by this utility model;

[0021] Figure 5 The diagram shown is a second exploded view of the anti-splashing, maintenance-free smoothing machine device provided by this utility model. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] 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.

[0025] like Figure 1-5 As shown, this embodiment provides a splash-proof, maintenance-free troweling machine device. The troweling machine device 10 includes a housing 11, a drive motor 12 fixed on the housing 11, a first gear 14 disposed on the drive shaft 13 of the drive motor 12 and located inside the housing 11, a gear set 15 rotatably disposed inside the housing 11 and meshing with the first gear 14, an output shaft 16 extending from inside the housing 11 to outside the housing 11 and rotatably connected to the housing 11, an output gear 17 disposed on the output shaft 16 and meshing with the gear set 15, and a troweling assembly mounted on the extended end of the output shaft 16 and the housing 11.

[0026] The smoothing assembly includes a rotating seat 18 mounted on the output shaft 16 and rotating with the output shaft 16, multiple blade arms 19 mounted on the rotating seat 18, smoothing blades 20 mounted on the blade arms 19, carriage bolts 21 disposed on the blade arms 19, a pressure plate assembly 22 movably sleeved on the output shaft 16 and used to push the carriage bolts 21 downward, a fork 23 rotatably connected to the bottom of the housing 11 and used to push the pressure plate assembly 22 downward, a telescopic assembly 24 rotatably mounted on the side wall of the housing 11 and rotatably connected to the second end of the fork 23, and a cover 25 fixed to the bottom of the housing 11 and cooperating with the rotating seat 18 to cover the first end of the fork 23 and the pressure plate assembly 22.

[0027] Understandably, the bottom of the housing 25 and the top of the rotating seat 18 cooperate with each other through a splash-proof labyrinth groove to prevent mortar from splashing into the housing 25 and the rotating seat 18, as will be described in detail later.

[0028] When using the anti-splash maintenance-free troweling device of this utility model, the drive motor 12 drives the first gear 14 to rotate via the drive shaft 13. The first gear 14 drives the output gear 17 to rotate via the gear set 15, and the output gear 17 drives the output shaft 16 to rotate. The output shaft 16 drives the rotating seat 18 and the blade arm 19 and troweling blade 20 mounted on the rotating seat 18 to rotate, thereby realizing the troweling operation. During this process, the tilt angle of the troweling blade 20 can be adjusted by controlling the extension and retraction of the telescopic component 24 to push the pressure plate component 22 downward, and the pressure plate component 22 pushes the carriage bolt 21 downward. Furthermore, by setting the rotating seat 18 and the housing 25, the first end of the fork 23, the pressure plate component 22 and the output shaft 16 are covered inside the rotating seat 18 and the housing 25, which can prevent mud from splashing into the rotating seat 18 and the housing 25, reducing the parts of the troweling machine that need to be cleaned and reducing the maintenance cost of the troweling machine.

[0029] Specifically, such as Figure 4 , 5 As shown, the housing 25 is a circular housing 25, the rotating seat 18 is a circular rotating seat 18, the top of the rotating seat 18 is provided with at least one annular groove, and the bottom of the circular housing 25 is provided with at least one protruding ring that can be rotatably inserted into the at least one annular groove.

[0030] In this embodiment, the at least one annular groove includes a first annular groove 26 and a second annular groove 27, and the at least one protruding ring includes a first protruding ring rotatably inserted into the first annular groove 26 and a second protruding ring rotatably inserted into the second annular groove 27.

[0031] After the first convex ring is inserted into the first annular groove 26, it can rotate within the first annular groove 26 during the rotation of the rotating seat 18. After the second convex ring is inserted into the second annular groove 27, it can rotate within the second annular groove 27 during the rotation of the rotating seat 18. During the operation of the trowel, because the first and second convex rings are inserted into the first and second annular grooves 26 and 27, there is no gap between the rotating seat 18 and the housing 25, which prevents slurry from splashing into the rotating seat 18 and the housing 25.

[0032] To facilitate installation and connection, the rotary base 18 includes an inner liner 28 fixedly mounted on the output shaft 16 and an outer shell 29 fixedly connected to the inner liner 28. The outer shell 29 is provided with a plurality of insertion holes 30 for the plurality of cutter arms 19 to be inserted and fixedly mounted.

[0033] When installing the rotary seat 18, first fix the inner liner 28 to the output shaft 16, and then fix the outer shell 29 with the tool arm 19 installed to the inner liner 28 to achieve fixed installation of the rotary seat 18.

[0034] Specifically, the pressure plate assembly 22 includes a first pressure plate 31 sleeved on the output shaft 16 and abutting against the carriage bolt 21, a second pressure plate 32 sleeved on the output shaft 16 and abutting against the first end of the shift fork 23, and a bearing 33 sleeved on the output shaft 16 and located between the first pressure plate 31 and the second pressure plate 32.

[0035] When the fork 23 pushes the second pressure plate 32 downward, the second pressure plate 32 pushes the first pressure plate 31 downward through the bearing 33, and the first pressure plate 31 then pushes the carriage bolt 21 on the smoothing blade 20 downward, thereby adjusting the tilt angle of the smoothing blade 20.

[0036] In this embodiment, the bottom of the housing 11 is provided with a first adapter seat and a second adapter seat 34, and the middle part of the fork 23 is rotatably connected between the first adapter seat and the second adapter seat 34 through a first rotating shaft 35.

[0037] The side wall of the housing 11 is provided with a third adapter 36 and a fourth adapter 37. The top of the telescopic component 24 is rotatably connected between the third adapter 36 and the fourth adapter 37 via a second pivot 38.

[0038] The telescopic rod of the telescopic assembly 24 is rotatably connected to the second end of the fork 23 via a third pivot 39. The telescopic assembly 24 is an electric push rod.

[0039] Specifically, such as Figure 3 As shown, the gear set 15 includes a first rotating rod rotatably disposed within the housing 11, a second gear 40 sleeved on the first rotating rod and rotating with the first rotating rod, a third gear 41 sleeved on the first rotating rod and rotating with the first rotating rod, a second rotating rod rotatably disposed within the housing 11, a fourth gear 42 sleeved on the second rotating rod and rotating with the second rotating rod, and a fifth gear 43 sleeved on the second rotating rod and rotating with the second rotating rod. The second gear 40 meshes with the first gear 14, the third gear 41 meshes with the fifth gear 43, and the fourth gear 42 meshes with the output gear 17.

[0040] Preferably, the first gear 14, the second gear 40, the third gear 41, the fourth gear 42, the fifth gear 43, and the output gear 17 are all helical gears. The torque of the drive motor 12 is transmitted to the output shaft 16 through the helical gear set 15. The helical gear set 15 transmits torque in layers, which can save reduction space.

[0041] Understandably, the second gear 40 and the third gear 41 rotate synchronously with the first rotating rod inside the housing 11, and the fourth gear 42 and the fifth gear 43 rotate synchronously with the second rotating rod inside the housing 11.

[0042] Preferably, the number of teeth of the second gear 40 is greater than the number of teeth of the first gear 14, the number of teeth of the fifth gear 43 is greater than the number of teeth of the third gear 41, and the number of teeth of the output gear 17 is greater than the number of teeth of the fourth gear 42. By setting the gear ratio, torque can be increased while decelerating.

[0043] 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 splash-proof, maintenance-free power trowel device, characterized in that, The smoothing machine device includes a housing, a drive motor fixed on the housing, a first gear disposed on the drive shaft of the drive motor and located inside the housing, a gear set rotatably disposed inside the housing and meshing with the first gear, an output shaft extending from inside the housing and rotatably connected to the housing, an output gear disposed on the output shaft and meshing with the gear set, and a smoothing component mounted on the extended end of the output shaft and on the housing. The smoothing assembly includes a rotating seat mounted on the output shaft and rotating with the output shaft, multiple blade arms mounted on the rotating seat, smoothing blades mounted on the blade arms, carriage bolts disposed on the blade arms, a pressure plate assembly movably sleeved on the output shaft and used to push the carriage bolts downward, a fork rotatably connected to the bottom of the housing and used to push the pressure plate assembly downward, a telescopic assembly rotatably mounted on the side wall of the housing and rotatably connected to the second end of the fork, and a cover fixed to the bottom of the housing and cooperating with the rotating seat to cover the first end of the fork and the pressure plate assembly.

2. The anti-splash maintenance-free smoothing machine device according to claim 1, characterized in that, The housing is a circular housing, the rotating seat is a circular rotating seat, the top of the rotating seat is provided with at least one annular groove, and the bottom of the circular housing is provided with at least one protruding ring that can be rotatably inserted into the at least one annular groove.

3. The anti-splash maintenance-free smoothing machine device according to claim 2, characterized in that, The at least one annular groove includes a first annular groove and a second annular groove, and the at least one convex ring includes a first convex ring rotatably inserted into the first annular groove and a second convex ring rotatably inserted into the second annular groove.

4. The anti-splash maintenance-free smoothing machine device according to claim 1, characterized in that, The rotating base includes an inner liner fixedly mounted on the output shaft and an outer shell fixedly connected to the inner liner. The outer shell is provided with multiple insertion holes for the multiple cutter arms to be inserted and fixedly mounted.

5. The anti-splash maintenance-free smoothing machine device according to claim 1, characterized in that, The pressure plate assembly includes a first pressure plate sleeved on the output shaft and abutting against the carriage bolt, a second pressure plate sleeved on the output shaft and abutting against the first end of the shift fork, and a bearing sleeved on the output shaft and located between the first and second pressure plates.

6. The anti-splash maintenance-free smoothing machine device according to claim 1, characterized in that, The bottom of the housing is provided with a first adapter seat and a second adapter seat, and the middle part of the fork is rotatably connected between the first adapter seat and the second adapter seat through a first rotating shaft.

7. The anti-splash maintenance-free smoothing machine device according to claim 6, characterized in that, The side wall of the housing is provided with a third adapter and a fourth adapter, and the top of the telescopic component is rotatably connected between the third adapter and the fourth adapter via a second pivot.

8. The anti-splash maintenance-free smoothing machine device according to claim 7, characterized in that, The telescopic rod of the telescopic assembly is rotatably connected to the second end of the fork via a third pivot, and the telescopic assembly is an electric push rod.

9. The anti-splash maintenance-free smoothing machine device according to claim 1, characterized in that, The gear set includes a first rotating rod rotatably disposed within the housing, a second gear sleeved on the first rotating rod and rotating with the first rotating rod, a third gear sleeved on the first rotating rod and rotating with the first rotating rod, a second rotating rod rotatably disposed within the housing, a fourth gear sleeved on the second rotating rod and rotating with the second rotating rod, and a fifth gear sleeved on the second rotating rod and rotating with the second rotating rod. The second gear meshes with the first gear, the third gear meshes with the fifth gear, and the fourth gear meshes with the output gear.

10. The anti-splash maintenance-free smoothing machine device according to claim 9, characterized in that, The first gear, second gear, third gear, fourth gear, fifth gear, and output gear are all helical gears.

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