A trolley for an indoor leveling device
By linking a gyroscope to an electronic control device on the trolley, the problem of the leveling device trolley veering off course during construction was solved, achieving precise construction results. Furthermore, the transmission belt adjustment device ensured stability during long-term use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIWANG (SHANGHAI) BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-26
AI Technical Summary
The trolley of the existing indoor leveling device is prone to deviating from its designated position during movement, leading to inaccurate construction.
A gyroscope is installed on the trolley and connected to the electronic control device. The gyroscope senses the deviation signal and controls the rotation speed and direction of the front and rear roller shaft groups to correct the deviation. A transmission belt adjustment device is also provided to prevent loosening.
It effectively corrects trolley deviation, ensures construction accuracy, and avoids movement errors caused by loosening of the transmission belt after prolonged use.
Smart Images

Figure CN224281903U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of floor leveling technology, specifically relating to a trolley for an indoor leveling device. Background Technology
[0002] Floor leveling is the process of treating uneven surfaces on the base floor using cement mortar or self-leveling cement. It's a crucial step in renovation, using specific techniques to achieve a level surface on the original building floor. The main purpose is to provide a uniform support layer for subsequent flooring materials such as floor tiles, preventing damage due to unevenness. Taking self-leveling cement as an example, the construction process includes: base treatment (cleaning dust and oil), sanding raised areas to ensure no hollow spots), applying an interface agent to enhance adhesion between the base and the self-leveling material (two coats required), mixing and pouring the self-leveling cement according to a ratio (usually cement:water = 1:2), pouring it from the far end of the room to allow it to flow naturally and cover the floor, then smoothing it with a scraper to remove air bubbles, paying special attention to corners and other details, and finally curing and allowing it to dry in a well-ventilated area for 3 days. Currently, scraping and removing air bubbles with a scraper are done manually or using a leveling device.
[0003] Patent application number 2025106300489 describes an indoor floor leveling device, which is my utility model for a leveling device that replaces manual construction. However, the current problem with the leveling device is that it tends to deviate from its original position during construction. Therefore, a trolley for an indoor leveling device is needed. Summary of the Invention
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a trolley for an indoor leveling device, which solves the problems mentioned in the background art.
[0005] The purpose of this utility model is achieved as follows: A trolley for an indoor leveling device includes a frame, on which a front roller shaft assembly, a rear roller shaft assembly, and a gyroscope are connected. A front drive belt is externally connected to the front roller shaft assembly, and a rear drive belt is externally connected to the rear roller shaft assembly. Both the front and rear roller shaft assemblies are electrically connected to an electronic control device, which is electrically connected to the gyroscope. By installing a gyroscope on the frame and electrically connecting it to the electronic control device after adjustment, and by electrically connecting the electronic control device to both the front and rear roller shaft assemblies, when the trolley deviates during movement, the gyroscope senses the deviation signal and sends an electrical signal to the electronic control device. Upon receiving the deviation signal, the electronic control device issues corresponding instructions to the front and rear roller shaft assemblies according to the pre-programmed deviation signal. By adjusting the rotation speed and forward / reverse direction of the front and rear roller shaft assemblies, the deviation of the trolley is corrected.
[0006] Furthermore, the frame includes a front vertical plate, a middle plate, a rear vertical plate, and a top plate detachably and fixedly connected to the upper ends of the front, middle, and rear vertical plates; a front space is formed between the front and middle vertical plates, and a rear space is formed between the rear and middle vertical plates. The front roller shaft assembly is disposed inside the front space, and the rear roller shaft assembly is disposed inside the rear space. In use, the leveling device is located above the top plate, and the rotation of the front and rear roller shaft assemblies drives the leveling device to move.
[0007] Furthermore, a first support plate and a second support plate are fixedly installed inside the front space. The gyroscope is fixedly installed on the first support plate, and the electronic control device is fixedly installed on the second support plate. The structural layout is reasonable, and the gyroscope, electronic control device, front roller shaft assembly, and rear roller shaft assembly can be linked together without affecting their individual operation.
[0008] Furthermore, the front roller assembly includes a left front driving roller and a right front driven roller. The front drive belt covers the outside of the left front driving roller and the right front driven roller. A first motor is installed inside the left front driving roller. The first motor is electrically connected to the electronic control device through a first wire. The left front driving roller is a permanent magnet synchronous motor electric roller. The permanent magnet synchronous motor electric roller is a roller assembly with a motor installed inside the roller that is already available on the market, which can realize the roller's self-drive and self-rotation.
[0009] Furthermore, the rear roller assembly includes a left rear driving roller and a right rear driven roller. The rear transmission belt covers the outside of the left rear driving roller and the right rear driven roller. A second motor is installed inside the left rear driving roller. The second motor is electrically connected to the electrical control device through a second wire. The surface of the intermediate plate has a through hole for the second wire to pass through and limit the second wire. The left rear driving roller also adopts the aforementioned permanent magnet synchronous motor electric roller.
[0010] Furthermore, the front roller assembly is connected to a front adjustment device, and the rear roller assembly is connected to a rear adjustment device, with the rear adjustment device having the same specifications as the front adjustment device. After prolonged use, the drive belt of either the front or rear roller assembly may loosen. The adjustment device allows for quick tension adjustment of the drive belt, preventing errors in trolley movement.
[0011] Furthermore, the front adjustment device includes an electric push rod fixedly installed in the side hole of the front vertical plate. The electric push rod is electrically connected to the electronic control device. A docking ring is fixedly installed on the telescopic rod of the electric push rod. The front shaft of the right front driven roller of the front roller assembly is rotatably connected to the docking ring. The right end of the telescopic rod of the electric push rod is inserted into the inner hole of the side hole of the front vertical plate. A laterally extending spring is fixedly connected in the inner hole. The right end of the spring is connected to the inner wall of the inner hole, and the left end of the spring is connected to the right end of the telescopic rod of the electric push rod. When it is necessary to adjust the tension of the front or rear drive belt, the telescopic rod of the electric push rod is extended or shortened by the electronic control device. When the telescopic rod is extended, it drives the drive belt to move outward, thereby achieving tension. Through the setting of the inner hole and the spring, when the telescopic rod is extended, the spring is further compressed in the inner hole. The restoring force of the spring acts on the right end of the telescopic rod. Under the interaction of the telescopic rod and the restoring force of the spring, the drive belt remains in a stable state during the adjustment process.
[0012] The beneficial effects of this invention are as follows: When the trolley deviates from its designated path during movement, the gyroscope senses the deviation signal and sends an electrical signal to the electronic control device. Upon receiving the deviation signal, the electronic control device issues corresponding instructions to the front and rear roller shaft groups based on the pre-programmed deviation signal. By adjusting the rotation speed and forward / reverse direction of the front and rear roller shaft groups, the deviation of the trolley is corrected. After prolonged use, the drive belt of the front or rear roller shaft group may loosen. The adjustment device allows for quick tension adjustment of the drive belt, preventing trolley movement errors. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the left-side structure of this utility model;
[0015] Figure 3 This is a top view of the structure of this utility model;
[0016] Figure 4 This is a front-view three-dimensional structural schematic diagram of the present invention;
[0017] Figure 5 This is the utility model Figure 4 Enlarged view of A in the middle;
[0018] Figure 6 This is a left-view stereoscopic structural diagram of the present invention;
[0019] Figure 7 This is the utility model Figure 6 Enlarged view of B in the middle;
[0020] Figure 8This is a top-view three-dimensional structural diagram of the present invention;
[0021] Figure 9 This is a bottom-view three-dimensional structural diagram of the present invention;
[0022] Figure 10 This is a schematic diagram of the internal structure after the cut-off portion of this utility model;
[0023] Figure 11 This is the utility model Figure 10 Enlarged view of C;
[0024] Figure 12 This is a circuit diagram of the present invention.
[0025] In the diagram: 1. Frame, 2. Front roller shaft assembly, 3. Rear roller shaft assembly, 4. Front drive belt, 5. Rear drive belt, 6. Electrical control device, 7. Gyroscope, 8. Front vertical plate, 9. Intermediate plate, 10. Rear vertical plate, 11. Top plate, 12. Front space, 13. Rear space, 14. First support plate, 15. Second support plate, 16. Left front driving roller, 17. Right front driven roller, 18. Left rear driving roller, 19. Right rear driven roller, 20. Through hole, 21. Side hole of front vertical plate, 22. Electric push rod, 23. Telescopic rod, 24. Connecting ring, 25. Front shaft of right front driven roller, 26. Inner hole, 27. Spring. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that all directional terms such as up, down, front, back, left, and right appearing in the present invention are not intended to limit the present invention, but are only used to more clearly explain and interpret the present invention. Example
[0027] like Figure 1-12 As shown, this embodiment discloses a trolley for an indoor leveling device, including a frame 1. The frame 1 is connected to a front roller shaft group 2, a rear roller shaft group 3, and a gyroscope 7. The front roller shaft group 2 is externally connected to a front drive belt 4, and the rear roller shaft group 3 is externally connected to a rear drive belt 5. Both the front roller shaft group 2 and the rear roller shaft group 3 are electrically connected to an electronic control device 6, and the electronic control device 6 is electrically connected to the gyroscope 7. By installing a gyroscope 7 on the frame 1 and electrically connecting the gyroscope 7 to the electronic control device 6 after debugging, and electrically connecting the electronic control device 6 to the front roller shaft group 2 and the rear roller shaft group 3, when the trolley deviates during movement, the gyroscope 7 senses the deviation signal and sends an electrical signal to the electronic control device 6. After receiving the deviation signal, the electronic control device 6 issues corresponding instructions to the front roller shaft group 2 and the rear roller shaft group 3 according to the programmed deviation signal. By adjusting the rotation speed and forward and reverse directions of the front roller shaft group 2 and the rear roller shaft group 3, the deviation of the trolley is corrected. Example
[0028] like Figure 1-12 As shown, this embodiment discloses a trolley for an indoor leveling device, including a frame 1. The frame 1 is connected to a front roller shaft group 2, a rear roller shaft group 3, and a gyroscope 7. The front roller shaft group 2 is externally connected to a front drive belt 4, and the rear roller shaft group 3 is externally connected to a rear drive belt 5. Both the front roller shaft group 2 and the rear roller shaft group 3 are electrically connected to an electronic control device 6, and the electronic control device 6 is electrically connected to the gyroscope 7. By installing a gyroscope 7 on the frame 1 and electrically connecting the gyroscope 7 to the electronic control device 6 after debugging, and electrically connecting the electronic control device 6 to the front roller shaft group 2 and the rear roller shaft group 3, when the trolley deviates during movement, the gyroscope 7 senses the deviation signal and sends an electrical signal to the electronic control device 6. After receiving the deviation signal, the electronic control device 6 issues corresponding instructions to the front roller shaft group 2 and the rear roller shaft group 3 according to the programmed deviation signal. By adjusting the rotation speed and forward and reverse directions of the front roller shaft group 2 and the rear roller shaft group 3, the deviation of the trolley is corrected.
[0029] For better performance, the frame 1 includes a front vertical plate 8, a middle plate 9, a rear vertical plate 10, and a top plate 11 that is detachably and fixedly connected to the upper ends of the front vertical plate 8, the middle plate 9, and the rear vertical plate 10. A front space 12 is formed between the front vertical plate 8 and the middle plate 9, and a rear space 13 is formed between the rear vertical plate 10 and the middle plate 9. The front roller shaft assembly 2 is disposed inside the front space 12, and the rear roller shaft assembly 3 is disposed inside the rear space 13. In use, the leveling device is located above the top plate 11, and the rotation of the front roller shaft assembly 2 and the rear roller shaft assembly 3 drives the leveling device to move.
[0030] For better performance, a first support plate 14 and a second support plate 15 are fixedly installed inside the front space 12. The gyroscope 7 is fixedly installed on the first support plate 14, and the electronic control device 6 is fixedly installed on the second support plate 15. The structural layout is reasonable, and the gyroscope 7, electronic control device 6, front roller shaft group 2 and rear roller shaft group 3 can be linked together without affecting their individual operation.
[0031] For better performance, the front roller assembly 2 includes a left front driving roller 16 and a right front driven roller 17. The front drive belt 4 covers the outside of the left front driving roller 16 and the right front driven roller 17. The left front driving roller 16 has a first motor installed inside. The first motor is electrically connected to the electrical control device 6 through a first wire. The left front driving roller 16 is a permanent magnet synchronous motor electric roller. The permanent magnet synchronous motor electric roller is a roller assembly with a motor installed inside the roller that is already available on the market, which can realize the roller's self-drive and self-rotation.
[0032] For better performance, the rear roller assembly 3 includes a left rear driving roller 18 and a right rear driven roller 19. The rear transmission belt 5 covers the outside of the left rear driving roller 18 and the right rear driven roller 19. A second motor is installed inside the left rear driving roller 18. The second motor is electrically connected to the electrical control device 6 through a second wire. The surface of the intermediate plate 9 has a through hole 20 for the second wire to pass through and limit the second wire. The left rear driving roller 18 also adopts the aforementioned permanent magnet synchronous motor electric roller. Example
[0033] like Figure 1-12 As shown, this embodiment discloses a trolley for an indoor leveling device, including a frame 1. The frame 1 is connected to a front roller shaft group 2, a rear roller shaft group 3, and a gyroscope 7. The front roller shaft group 2 is externally connected to a front drive belt 4, and the rear roller shaft group 3 is externally connected to a rear drive belt 5. Both the front roller shaft group 2 and the rear roller shaft group 3 are electrically connected to an electronic control device 6, and the electronic control device 6 is electrically connected to the gyroscope 7. By installing a gyroscope 7 on the frame 1 and electrically connecting the gyroscope 7 to the electronic control device 6 after debugging, and electrically connecting the electronic control device 6 to the front roller shaft group 2 and the rear roller shaft group 3, when the trolley deviates during movement, the gyroscope 7 senses the deviation signal and sends an electrical signal to the electronic control device 6. After receiving the deviation signal, the electronic control device 6 issues corresponding instructions to the front roller shaft group 2 and the rear roller shaft group 3 according to the programmed deviation signal. By adjusting the rotation speed and forward and reverse directions of the front roller shaft group 2 and the rear roller shaft group 3, the deviation of the trolley is corrected.
[0034] For better performance, the frame 1 includes a front vertical plate 8, a middle plate 9, a rear vertical plate 10, and a top plate 11 that is detachably and fixedly connected to the upper ends of the front vertical plate 8, the middle plate 9, and the rear vertical plate 10. A front space 12 is formed between the front vertical plate 8 and the middle plate 9, and a rear space 13 is formed between the rear vertical plate 10 and the middle plate 9. The front roller shaft assembly 2 is disposed inside the front space 12, and the rear roller shaft assembly 3 is disposed inside the rear space 13. In use, the leveling device is located above the top plate 11, and the rotation of the front roller shaft assembly 2 and the rear roller shaft assembly 3 drives the leveling device to move.
[0035] For better performance, a first support plate 14 and a second support plate 15 are fixedly installed inside the front space 12. The gyroscope 7 is fixedly installed on the first support plate 14, and the electronic control device 6 is fixedly installed on the second support plate 15. The structural layout is reasonable, and the gyroscope 7, electronic control device 6, front roller shaft group 2 and rear roller shaft group 3 can be linked together without affecting their individual operation.
[0036] For better performance, the front roller assembly 2 includes a left front driving roller 16 and a right front driven roller 17. The front drive belt 4 covers the outside of the left front driving roller 16 and the right front driven roller 17. The left front driving roller 16 has a first motor installed inside. The first motor is electrically connected to the electrical control device 6 through a first wire. The left front driving roller 16 is a permanent magnet synchronous motor electric roller. The permanent magnet synchronous motor electric roller is a roller assembly with a motor installed inside the roller that is already available on the market, which can realize the roller's self-drive and self-rotation.
[0037] For better performance, the rear roller assembly 3 includes a left rear driving roller 18 and a right rear driven roller 19. The rear transmission belt 5 covers the outside of the left rear driving roller 18 and the right rear driven roller 19. A second motor is installed inside the left rear driving roller 18. The second motor is electrically connected to the electrical control device 6 through a second wire. The surface of the intermediate plate 9 has a through hole 20 for the second wire to pass through and limit the second wire. The left rear driving roller 18 also adopts the aforementioned permanent magnet synchronous motor electric roller.
[0038] For better performance, the front roller assembly 2 is connected to a front adjustment device, and the rear roller assembly 3 is connected to a rear adjustment device, with the rear adjustment device having the same specifications as the front adjustment device. After prolonged use, the drive belt of either the front roller assembly 2 or the rear roller assembly 3 may loosen. The adjustment device allows for quick tension adjustment of the drive belt, preventing errors in trolley movement.
[0039] For better performance, the front adjustment device includes an electric push rod 22 fixedly installed in the side hole 21 of the front vertical plate 8. The electric push rod 22 is electrically connected to the electronic control device 6. The telescopic rod 23 of the electric push rod 22 is fixedly equipped with a docking ring 24. The front shaft 25 of the right front driven roller 17 of the front roller shaft assembly 2 is rotatably connected to the docking ring 24. The right end of the telescopic rod 23 of the electric push rod 22 is inserted into the inner hole 26 of the side hole 21 of the front vertical plate 8. A laterally extending spring 27 is fixedly connected in the inner hole 26. The right end of the spring 27 is connected to the inner wall of the inner hole 26, and the left end of the spring 27 is connected to the right end of the telescopic rod 23 of the electric push rod 22. When it is necessary to adjust the tension of the front drive belt 4 or the rear drive belt 5, the electronic control device 6 controls the telescopic rod 23 of the electric push rod 22 to extend or shorten. When the telescopic rod 23 extends, it drives the drive belt to move outward, thereby achieving tension. With the inner hole 26 and the spring 27, when the telescopic rod 23 is extended, the spring 27 is further compressed in the inner hole 26. The restoring force of the spring 27 acts on the right end of the telescopic rod 23. Under the interaction of the restoring force of the telescopic rod 23 and the spring 27, the transmission belt is kept in a stable state during the adjustment process.
[0040] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A trolley for an indoor leveling device, comprising a frame, characterized in that: The frame is connected to a front roller shaft assembly, a rear roller shaft assembly, and a gyroscope. A front drive belt is connected to the outside of the front roller shaft assembly, and a rear drive belt is connected to the outside of the rear roller shaft assembly. Both the front and rear roller shaft assemblies are electrically connected to an electronic control device, which is electrically connected to the gyroscope.
2. The trolley for the indoor leveling device according to claim 1, characterized in that: The frame includes a front vertical plate, a middle plate, a rear vertical plate, and a top plate that is detachably and fixedly connected to the upper end of the front vertical plate, the middle plate, and the rear vertical plate; a front space is formed between the front vertical plate and the middle plate, and a rear space is formed between the rear vertical plate and the middle plate; the front roller shaft assembly is disposed inside the front space, and the rear roller shaft assembly is disposed inside the rear space.
3. The trolley for the indoor leveling device according to claim 2, characterized in that: The front space is fixedly provided with a first support plate and a second support plate, the gyroscope is fixedly provided on the first support plate, and the electronic control device is fixedly provided on the second support plate.
4. The trolley for the indoor leveling device according to claim 3, characterized in that: The front roller assembly includes a left front drive roller and a right front driven roller. The front drive belt covers the outside of the left front drive roller and the right front driven roller. A first motor is installed inside the left front drive roller. The first motor is electrically connected to the electronic control device through a first wire.
5. The trolley for the indoor leveling device according to claim 4, characterized in that: The left front drive roller is a permanent magnet synchronous motor electric roller.
6. The trolley for the indoor leveling device according to claim 5, characterized in that: The rear roller assembly includes a left rear driving roller and a right rear driven roller. The rear drive belt covers the outside of the left rear driving roller and the right rear driven roller. A second motor is installed inside the left rear driving roller. The second motor is electrically connected to the electrical control device through a second wire. The surface of the intermediate plate has a through hole for the second wire to pass through and limit the second wire.
7. The trolley for the indoor leveling device according to claim 6, characterized in that: The left rear drive roller is a permanent magnet synchronous motor electric roller.
8. The trolley for the indoor leveling device according to claim 1, characterized in that: The front roller assembly is connected to a front adjustment device, and the rear roller assembly is connected to a rear adjustment device, wherein the rear adjustment device has the same specifications as the front adjustment device.
9. The trolley for the indoor leveling device according to claim 8, characterized in that: The front adjustment device includes an electric push rod fixedly installed in the side hole of the front vertical plate. The electric push rod is electrically connected to the electric control device. The telescopic rod of the electric push rod is fixedly provided with a docking ring. The front shaft of the right front driven roller of the front roller shaft assembly is rotatably connected to the docking ring. The right end of the telescopic rod of the electric push rod is inserted into the inner hole of the side hole of the front vertical plate. A transversely extending spring is fixedly connected in the inner hole. The right end of the spring is connected to the inner wall of the inner hole, and the left end of the spring is connected to the right end of the telescopic rod of the electric push rod.