Troweling sheet adjusting device of troweling machine
By designing the pad adjustment device of the smear machine, and using the self-locking thread connection between the rotating rod and the lifting rod, the problem of cumbersome smear angle adjustment in the prior art is solved, and convenient angle adjustment and operation efficiency are achieved.
Patent Information
- Application Number
- CN202421299246.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The smear angle adjustment mechanism of the existing smear machine is complicated to operate, and the locking device needs to be unlocked to adjust the angle, which leads to inconvenient operation.
A smear smear adjustment device is designed, including a smear main body, a smear, an angle adjustment mechanism, a rotating rod and a lifting rod. The rotating rod drives the lifting rod to move, forming a self-locking threaded connection, achieving convenient adjustment of the smear angle.
The worker can adjust the angle of the smear by simply turning the lever with his hands, which is easy to operate and does not require additional locking devices, which improves operating efficiency.
Smart Images
Figure CN222667637U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of trowel machine design, and in particular to a trowel blade adjustment device for a trowel machine. Background Art
[0002] The floor trowel is a machine for rough and fine troweling of concrete surfaces. The surface constructed by the machine is smoother and flatter than the surface constructed by manual labor, which can greatly improve the density and wear resistance of the concrete surface, and improve the work efficiency by more than 10 times compared with manual labor. The floor trowel can be widely used for slurry, leveling and polishing of concrete surfaces in high-standard factories, warehouses, parking lots, squares, airports and frame buildings. It is the preferred machine in concrete construction.
[0003] According to the flatness of the ground, workers need to control the angle adjustment mechanism to change the inclination angle of the trowel relative to the ground, so as to smooth the ground with the trowel. The common way to control the angle adjustment mechanism is usually to use a lifting rod to longitudinally pull the control end of the angle adjustment mechanism. Since the trowel needs to maintain a certain angle during the operation of the trowel, an additional locking device needs to be set on the lifting rod. When re-adjusting the trowel angle, the locking device needs to be unlocked first, which is cumbersome. Summary of the invention
[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0005] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a trowel blade adjustment device, including: a trowel body, integrated with a power shaft; a blade, transmission connected to the power shaft; an angle adjustment mechanism, forming a lifting end and a control end, the lifting end is connected to the blade, and when the control end moves longitudinally, the lifting end rotates the blade; a rotating rod, longitudinally rotatably connected to the trowel body, and a first connecting part is formed at the lower end; a lifting rod, a second connecting part transmission-connected to the first connecting part is formed at the upper end, and the lower end is connected to the lifting end, when the rotating rod rotates, the lifting rod moves longitudinally, and the first connecting part and the second connecting part form a self-locking.
[0006] Furthermore, the trowel body also includes: a torsion spring and a mounting seat; the mounting seat is connected to the power shaft, the mounting seat forms a socket, the trowel forms an insertion rod, the insertion rod is rotated and inserted into the socket, the torsion spring is sleeved on the insertion rod, one end of the torsion spring is fixed to the socket of the mounting seat, and the other end is fixed to the insertion rod.
[0007] Furthermore, the angle adjustment mechanism includes: a lever, a crank arm, an abutment and an adjustment disk; the middle part of the lever is rotatably connected to the trowel machine body, one end of the lever forms the control end, and is rotatably connected to the lower end of the lifting rod; the other end of the lever abuts against the upper end of the adjustment disk, the adjustment disk is longitudinally slidably sleeved on the power shaft, one end of the crank arm is fixed to the smear, and the other end is connected to the abutment, and the abutment abuts against the lower end of the adjustment disk.
[0008] Furthermore, the abutment member includes a first screw, and the first screw is threadedly connected to the upper end of the crank arm.
[0009] Furthermore, the trowel machine body includes: a guide cylinder; the upper end of the guide cylinder is rotatably connected to the middle part of the rotating rod, the side wall of the guide cylinder forms a guide hole, the guide hole is a longitudinal oblong hole, and the second connecting part is provided with a second screw, the second screw passes through the guide hole and slides with the guide hole in the longitudinal direction.
[0010] Furthermore, the trowel machine body also includes: a power part, a small pulley, a belt, a large pulley, a worm and a worm wheel; the output end of the power part is connected to the small pulley, the small pulley is sleeved with a belt, the large pulley is sleeved with a belt, the large pulley is connected to the worm, the worm is meshed with the worm wheel, and the worm wheel is fixedly connected to the power shaft.
[0011] Furthermore, the trowel body also includes: a guard ring and a bracket; the power member and the guide cylinder are both fixed on the bracket, the guard ring is fixed to the bracket, the smear is located below the bracket, and the guard ring is open downward to surround the smear.
[0012] Furthermore, the first connection part is an external thread section formed at the lower end of the rotating rod, and the second connection part is an internal thread sleeve formed at the upper end of the lifting rod, and the first connection part and the second connection part form a threaded connection.
[0013] Furthermore, a crank is provided at the upper end of the rotating rod.
[0014] The beneficial effects of this application are:
[0015] When the smear angle needs to be adjusted, the worker only needs to turn the rotating rod by hand to drive the lifting rod to move longitudinally, so that the angle adjustment mechanism changes the angle of the smear. Finally, the worker releases the rotating rod. Due to the self-locking connection between the first connecting part and the second connecting part, there is no need to set an additional locking device, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.
[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.
[0018] In the attached picture:
[0019] Figure 1 is an overall schematic diagram according to an embodiment of the present application;
[0020] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the connection relationship between the trowel body, the adjustment disk and the trowel blade;
[0021] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the connection relationship between the wiper, the adjustment disk and the lever;
[0022] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the connection relationship of the components inside the trowel machine;
[0023] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the installation relationship between the lifting rod, the second screw and the guide cylinder.
[0024] Reference numerals:
[0025] 1. Main body of the trowel machine; 10. Guide cylinder; 101. Guide hole; 11. Power part; 12. Small pulley; 13. Belt; 14. Large pulley; 15. Worm; 16. Worm wheel; 17. Guard ring; 18. Bracket; 19. Power shaft; 2. Smear; 21. Insert rod; 3. Angle adjustment mechanism; 31. Lever; 32. Crank arm; 33. Abutment; 34. Adjustment disk; 4. Rotating rod; 5. Lifting rod; 6. Second screw; 7. Mounting seat; 71. Socket; 8. Crank handle. DETAILED DESCRIPTION
[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0027] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0028] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0029] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0031] Reference Figure 1-5 ,
[0032] A trowel blade adjustment device comprises: a trowel body 1, a trowel blade 2, an angle adjustment mechanism 3, a rotating rod 4 and a lifting rod 5. The trowel body 1 is integrated with a power shaft 19 for outputting power, and four groups of trowel blades 2 are connected to the power shaft 19 in a transmission manner. When the power shaft 19 rotates, the four groups of trowel blades 2 rotate at high speed on the concrete surface to smooth the concrete. The angle adjustment mechanism 3 forms a lifting end and a control end, and the lifting end is connected to the trowel blade 2, which is used to rotate and adjust the inclination angle of the trowel blade 2 relative to the concrete surface, so as to cope with concrete with different degrees of surface unevenness. The control end is connected to the lower end of the lifting rod 5. When the lifting rod 5 moves upward, the control end moves upward, and the lifting end rotates the trowel blade 2 to increase the angle between the trowel blade 2 and the concrete surface; when the lifting rod 5 moves downward, the control end moves downward, and the lifting end rotates the trowel blade 2 to reduce the angle between the trowel blade 2 and the concrete surface. The middle part of the rotating rod 4 is rotatably connected to the main body 1 of the trowel. The lower end of the rotating rod 4 forms a first connection part, which is an external thread section. The upper end of the lifting rod 5 forms a second connection part, which is an internal thread sleeve. The external thread section is threadedly connected to the internal thread sleeve. When the rotating rod 4 rotates forward, the external thread section rotates, driving the internal thread sleeve to rise, so that the lifting rod 5 moves upward; when the rotating rod 4 rotates reversely, the external thread section rotates, driving the internal thread sleeve to descend, so that the lifting rod 5 moves downward. The connection between the external thread section and the internal thread sleeve is self-locking, so that when the worker does not rotate the rotating rod 4, the lifting rod 5 can be maintained at a certain height to maintain the smear 2 at an inclined angle.
[0033] Specifically, the main body of the trowel machine further includes: a torsion spring and a mounting seat 7. The mounting seat 7 is fixedly connected to the lower end of the power shaft 19 by bolts, the mounting seat 7 forms a socket 71, the wiper 2 forms an insertion rod 21, the insertion rod 21 is rotated and inserted into the socket 71, the torsion spring is sleeved on the insertion rod 21 and is located in the socket 71, one end of the torsion spring is fixed to the socket 71 of the mounting seat 7, and the other end is fixed to the insertion rod 21, and the torsion spring applies a force on the wiper 2 that is equal to and opposite to the rotation of the wiper 2 by the angle adjustment mechanism 3, so that the wiper 2 is maintained at any angle of the angle adjustment mechanism 3.
[0034] Specifically, the angle adjustment mechanism 3 includes: a lever 31, a crank arm 32, abutment 33 and an adjustment disk 34. The middle part of the lever 31 is rotatably connected to the trowel body 1, one end of the lever 31 forms a control end and is rotatably connected to the lower end of the lifting rod 5 through a pin, the other end of the lever 31 abuts against the upper end of the adjustment disk 34, and the adjustment disk 34 is longitudinally slidably sleeved on the power shaft 19, one end of the crank arm 32 is fixed to the wiper 2, and the other end is connected to the abutment 33, and the abutment 33 abuts against the lower end of the adjustment disk 34. When the lifting rod 5 moves upward, the control end of the lever 31 moves upward, and the other end of the lever 31 presses the adjustment disk 34 downward, and the adjustment disk 34 rotates the crank arm 32, and the crank arm 32 drives the wiper 2 to rotate around the axis of the insertion rod 21 through the abutment 33, thereby adjusting the angle of the wiper 2. Conversely, when the lifting rod 5 moves downward, the wiper 2 rotates in the opposite direction.
[0035] Specifically, the abutment 33 is preferably a first screw, which is threadedly connected to the upper end of the crank arm 32, and the upper end of the first screw abuts against the adjustment disk. By rotating the first screw, the screw moves up or down relative to the crank arm 32, and the gap between the upper end of the crank arm 32 and the adjustment disk 34 can be adjusted, thereby adjusting the preset inclination angle of the smear 2.
[0036] Specifically, the main body 1 of the trowel machine includes: a guide cylinder 10. The upper end of the guide cylinder 10 is rotatably connected to the middle part of the rotating rod 4, and the side wall of the guide cylinder 10 is penetrated to form a guide hole 101, which is a longitudinal oblong hole. The second connecting part is provided with a second screw 6, which penetrates the guide hole 101 and slides with the guide hole 101 in the longitudinal direction. The second screw 6 has a limiting effect on the up and down movement of the lifting rod 5, so that the up and down movement range of the lifting rod 5 is within the longitudinal length range of the oblong hole.
[0037] Specifically, the main body 1 of the trowel machine further includes: a power member 11, a small pulley 12, a belt 13, a large pulley 14, a worm 15 and a worm wheel 16. The power member 11 is a motor, the output end of the power member 11 is fixedly connected with the small pulley 12 through a flat key, the small pulley 12 is sleeved with the belt 13, the large pulley 14 is sleeved with the belt 13, the large pulley 14 is fixedly connected with the worm 15 through a flat key, the worm 15 is meshed with the worm wheel 16, the worm wheel 16 is fixedly connected with the power shaft 19, the output end of the power member 11 rotates to drive the small pulley 12 to rotate, the small pulley 12 drives the large pulley 14 to rotate through the belt 13, the large pulley 14 drives the worm wheel 16 to rotate through the worm 15, and the worm wheel 16 drives the power shaft 19 to rotate, thereby outputting power.
[0038] Specifically, the trowel body 1 further includes: a guard ring 17 and a bracket 18. The power member 11 and the guide cylinder 10 are respectively fixedly mounted on the bracket 18, the guard ring 17 is fixed to the bracket 18, the smear 2 is located below the bracket 18, and the guard ring 17 is open downward to surround the smear 2 to prevent the high-speed rotating smear 2 from injuring people.
[0039] Specifically, a crank 8 is provided at the upper end of the rotating rod 4 , so that a worker can hold it by hand to rotate the rotating rod 4 .
[0040] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.
Claims
1. A trowel blade adjustment device, characterized in that: include: The main body of the trowel machine is integrated with a power shaft; A smear, drivingly connected to the power shaft; An angle adjustment mechanism, forming a lifting end and a control end, wherein the lifting end is connected to the wiper, and when the control end moves longitudinally, the lifting end rotates the wiper; A rotating rod is rotatably connected to the trowel body in a longitudinal direction, and a first connecting portion is formed at the lower end thereof; The lifting rod has a second connection part that is transmission-connected to the first connection part at the upper end and a lower end that is connected to the lifting end. When the rotating rod rotates, the lifting rod moves longitudinally, and the first connection part and the second connection part form a self-locking.
2. The trowel blade adjustment device according to claim 1, characterized in that: The main body of the trowel machine also includes: a torsion spring and a mounting seat; the mounting seat is fixedly connected to the power shaft, the mounting seat forms a socket, the trowel forms an insertion rod, the insertion rod is rotated and inserted into the socket, the torsion spring is sleeved on the insertion rod, one end of the torsion spring is fixed to the socket of the mounting seat, and the other end is fixed to the insertion rod.
3. The trowel blade adjustment device according to claim 2, characterized in that: The angle adjustment mechanism includes: a lever, a crank arm, an abutment and an adjustment disk; the middle part of the lever is rotatably connected to the trowel body, one end of the lever forms the control end, and is rotatably connected to the lower end of the lifting rod; the other end of the lever abuts against the upper end of the adjustment disk, and the adjustment disk is longitudinally slidably sleeved on the power shaft, one end of the crank arm is fixed to the smear, and the other end is connected to the abutment, and the abutment abuts against the lower end of the adjustment disk.
4. The trowel blade adjustment device according to claim 3, characterized in that: The abutment member includes a first screw, and the first screw is threadedly connected to the upper end of the crank arm.
5. The trowel blade adjustment device according to any one of claims 3 or 4, characterized in that: The main body of the trowel machine includes: a guide cylinder; the upper end of the guide cylinder is rotatably connected to the middle part of the rotating rod, the side wall of the guide cylinder forms a guide hole, the guide hole is a longitudinal oblong hole, and the second connecting part is provided with a second screw, the second screw passes through the guide hole and slides with the guide hole in the longitudinal direction.
6. The trowel blade adjustment device according to claim 5, characterized in that: The main body of the trowel machine also includes: a power part, a small pulley, a belt, a large pulley, a worm and a worm wheel; the output end of the power part is connected to the small pulley, the small pulley is sleeved with a belt, the large pulley is sleeved with a belt, the large pulley is connected to the worm, the worm is meshed with the worm wheel, and the worm wheel is fixedly connected to the power shaft.
7. The trowel blade adjustment device according to claim 6, characterized in that: The trowel machine body also includes: a guard ring and a bracket; the power member and the guide cylinder are both fixed on the bracket, the guard ring is fixed to the bracket, the smear is located below the bracket, and the guard ring is open downward to surround the smear.
8. The trowel blade adjustment device according to claim 6 or 7, characterized in that: The first connection part is an external thread section formed at the lower end of the rotating rod, and the second connection part is an internal thread sleeve formed at the upper end of the lifting rod. The first connection part and the second connection part form a threaded connection.
9. The trowel blade adjustment device according to claim 8, characterized in that: A crank is arranged on the upper end of the rotating rod.