Multi-functional hand-operated road roller based on modular design

Abstract

The utility model relates to road roller technical field discloses multifunctional hand -held road roller based on modularization design, including base, the rear surface of base is fixedly connected with the handrail, and the bottom of base both sides are installed with the press roll in front and back, the left and right ends of press roll all are rotatably connected with the support plate, the upper surface of base is opposite the position of press roll and is provided with the mud scraping module, the utility model discloses through design mud scraping mechanism, utilizes the thread transmission and ratchet locking structure to realize the accurate adjustment of the height of scraper, effectively compensates the wear and tear of scraper, ensures that the mud scraping cutter mouth always closely matches the press roller camber, through the setting displacement mechanism, realizes the one -key switching of road roller working mode and mobile mode, the mechanism can jack up the press roll and separate from the ground when shifting, avoids the abrasion caused by traditional trailing, reduces the moving resistance simultaneously, the stable recovery wheel group ensures full load compaction when operating, both prolongs the service life of core component, and greatly improves equipment transfer efficiency and operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of road roller technology, specifically a multi-functional walk-behind road roller based on modular design. Background Technology

[0002] A walk-behind roller is a roller that is supported by both hands for compaction operations. It is required to be easy to operate, lightweight, and suitable for compaction operations in narrow areas and places where large rollers cannot enter.

[0003] Existing road maintenance using walk-behind rollers often results in a lot of mud adhering to the rollers when the soil is moist. Current methods typically employ fixed scrapers, but these scrapers wear out quickly, reducing their effectiveness and requiring replacement. This leads to unsatisfactory performance.

[0004] Chinese patent discloses a hand-held road roller for road maintenance (authorization announcement number CN214656150U). This patented technology uses a vertical plate fixedly connected to the side of the machine body, and a fixed frame fixedly connected to the inner side of the vertical plate. The inner side of the fixed frame is movably engaged with a scraper blade, and a threaded rod is threadedly sleeved on the front of the fixed frame. The threaded rod connects to a movable plate, and the movable plate is movably engaged with the fixed sleeve on the front of the scraper blade. The position of the scraper blade can be adjusted by rotating the threaded rod. After the scraper blade is worn, the threaded rod can be rotated to bring the scraper blade closer to the scraper blade for scraping, avoiding the need to directly replace the scraper blade and improving the performance.

[0005] However, it has certain drawbacks: the threaded rod is prone to unexpected reverse rotation under equipment vibration or external force, which causes the contact pressure between the scraper and the roller to gradually weaken or even completely separate. This drawback not only forces operators to frequently manually readjust the position of the scraper, reducing construction efficiency, but also causes mud to accumulate on the roller surface due to incomplete scraping, which aggravates equipment wear and affects the uniformity of road compaction. Utility Model Content

[0006] The purpose of this invention is to provide a multi-functional walk-behind roller based on modular design to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The multi-functional walk-behind roller based on modular design includes a base, a handrail fixed to the rear surface of the base, and pressure rollers installed on both the front and rear sides of the base. Support plates are rotatably connected to both ends of the pressure rollers.

[0009] A scraping module is provided on the upper surface of the base, directly opposite the pressure roller. The scraping module includes a C-shaped plate, through which a threaded sleeve is rotatably connected. A screw is threadedly connected to the inside of the threaded sleeve. A clamping block is fixed to the lower end of the screw. A scraper is fixed to the inner side of the clamping block. Sliding rods are fixed to the upper surface of the clamping block on both the left and right sides of the screw. A ratchet is fixedly sleeved on the outside of the threaded sleeve above the C-shaped plate. A locking element is provided on the upper surface of the C-shaped plate to the left of the threaded sleeve.

[0010] As a further embodiment of this utility model: the locking component includes a spring, a fixing block is fixedly connected to the left end of the spring, and a pawl is fixedly connected to the right end of the spring, with a fixing rod rotatably connected to the rear end of the pawl.

[0011] As a further embodiment of this utility model: the upper surface of the base is provided with displacement modules located in front of the front mud scraping module and behind the rear mud scraping module. The displacement module includes a telescopic cylinder, and a connecting plate is fixedly connected to the telescopic end of the telescopic cylinder. Universal wheels are fixedly connected to both the left and right ends of the lower surface of the connecting plate.

[0012] As a further embodiment of this utility model: the upper end of the support plate is fixed to the lower surface of the base, the lower end of the C-shaped plate is fixed to the upper surface of the base, the screw movably passes through the base, the lower end of the scraper movably fits against the pressure roller, and the slide rod movably passes through the base.

[0013] As a further embodiment of this utility model: the pawl is attached to the ratchet, and the lower ends of the fixing block and the fixing rod are both fixed to the upper surface of the C-shaped plate.

[0014] As a further improvement of this utility model: the telescopic cylinder is fixed to the upper surface of the base, and the connecting plate is located below the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model designs a sludge scraping mechanism that utilizes a threaded drive and ratchet locking structure to achieve precise adjustment of the scraper height, effectively compensating for scraper wear and ensuring that the scraper blade is always in close contact with the curved surface of the pressure roller. The unique anti-reverse mechanism completely eliminates the risk of scraper retraction caused by equipment vibration through the engagement and locking of the pawl and ratchet, significantly improving the self-cleaning efficiency of the pressure roller surface and ensuring the flatness of the compacted surface and construction quality during continuous operation.

[0017] 2. This utility model enables one-click switching between the working mode and the moving mode of the road roller by setting a displacement mechanism; the mechanism can quickly lift the pressure roller off the ground during transfer, avoiding the wear caused by traditional dragging, and reducing the moving resistance; during operation, the wheel set is stably recovered to ensure full load compaction, which not only extends the service life of the core components, but also greatly improves the equipment transfer efficiency and operation convenience. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a multi-functional walk-behind roller based on a modular design;

[0019] Figure 2 This is a structural diagram of the sludge scraper module in a multi-functional walk-behind roller based on modular design;

[0020] Figure 3 This is a structural schematic diagram of the locking component in a multi-functional walk-behind roller based on modular design;

[0021] Figure 4 This is a schematic diagram of the displacement module in a multi-functional walk-behind roller based on modular design.

[0022] In the diagram: 1. Base; 2. Handrail; 3. Pressure roller; 4. Support plate; 5. Scraper module; 6. C-shaped plate; 7. Screw sleeve; 8. Screw; 9. Clamping block; 10. Scraper; 11. Slide rod; 12. Ratchet; 13. Locking element; 14. Spring; 15. Fixing block; 16. Pawl; 17. Fixing rod; 18. Displacement module; 19. Telescopic cylinder; 20. Connecting plate; 21. Caster wheel. Detailed Implementation

[0023] Please see Figures 1-3 In this embodiment of the utility model, the multi-functional hand-held road roller based on modular design includes a base 1, a handrail 2 fixedly connected to the rear surface of the base 1, and pressure rollers 3 installed on both the front and rear sides of the base 1. The left and right ends of the pressure rollers 3 are rotatably connected to support plates 4, and the upper end of the support plates 4 is fixedly connected to the lower surface of the base 1.

[0024] A scraping module 5 is provided on the upper surface of the base 1, directly opposite the pressure roller 3. The scraping module 5 includes a C-shaped plate 6, the lower end of which is fixed to the upper surface of the base 1. A threaded sleeve 7 is rotatably connected through the upper surface of the C-shaped plate 6. A screw rod 8 is threadedly connected inside the threaded sleeve 7. The screw rod 8 movably passes through the base 1. A clamping block 9 is fixed to the lower end of the screw rod 8. A scraper 10 is fixed to the inner side of the clamping block 9. The lower end of the scraper 10 movably fits against the pressure roller 3. Slide rods are fixed to both the left and right sides of the upper surface of the clamping block 9. 11. The slide bar 11 moves through the base 1. The outside of the screw sleeve 7 is fixedly sleeved on the top of the C-shaped plate 6. A locking element 13 is provided on the upper surface of the C-shaped plate 6 to the left of the screw sleeve 7. The locking element 13 includes a spring 14. A fixing block 15 is fixedly connected to the left end of the spring 14, and a pawl 16 is fixedly connected to the right end of the spring 14. The pawl 16 is attached to the ratchet 12. A fixing rod 17 is rotatably connected to the rear end of the pawl 16. The lower ends of the fixing block 15 and the fixing rod 17 are both fixedly connected to the upper surface of the C-shaped plate 6.

[0025] The pressure roller 3 is used to compact the ground surface;

[0026] The scraper 10 is used to scrape off the dirt from the surface of the pressure roller 3;

[0027] Pawl 16 engages with ratchet 12, allowing ratchet 12 to rotate counterclockwise normally but not clockwise. Pulling pawl 16 away from ratchet 12 allows ratchet 12 to rotate clockwise.

[0028] Rotating the screw sleeve 7 counterclockwise can drive the screw 8 to descend, so that the scraper 10 always keeps in contact with the pressure roller 3, preventing the scraper 10 from wearing out and failing to keep in contact with the pressure roller 3 after a period of use; the cooperation between the pawl 16 and the ratchet 12 prevents the screw sleeve 7 from rotating clockwise due to vibration or other factors, thereby preventing the scraper 10 from moving upward.

[0029] exist Figure 1 and Figure 4 In the middle: The upper surface of the base 1 is provided with displacement modules 18 in front of the front mud scraping module 5 and behind the rear mud scraping module 5. The displacement module 18 includes a telescopic cylinder 19, which is fixed to the upper surface of the base 1. The telescopic end of the telescopic cylinder 19 is fixed to a connecting plate 20. The connecting plate 20 is located below the base 1. The left and right ends of the lower surface of the connecting plate 20 are fixed with universal wheels 21.

[0030] The front connecting plate 20 is located in front of the front pressure roller 3, and the rear connecting plate 20 is located behind the rear pressure roller 3.

[0031] The telescopic cylinder 19 is preferably an electric cylinder;

[0032] In the initial state, the telescopic cylinder 19 is in the retracted state, and the pressure roller 3 is in contact with the ground. After the telescopic cylinder 19 extends, the universal wheel 21 contacts the ground and lifts the pressure roller 3, so that the pressure roller 3 will not be damaged by prolonged contact with the ground when it is not in use.

[0033] The working principle of this utility model is as follows: the operator pushes the road roller to the construction position through the handle 2. When it needs to be moved, the telescopic cylinder 19 of the front and rear displacement module 18 is activated to extend, which drives the connecting plate 20 to press down so that the universal wheel 21 touches the ground and lifts the pressure roller 3 off the ground, so as to realize the convenient movement of the road roller. During the compaction operation, the telescopic cylinder 19 retracts and the pressure roller 3 contacts the ground for compaction. The scraper 10 of the mud scraping module 5 continuously scrapes the mud off the surface of the pressure roller 3. When the scraper 10 is worn, the screw sleeve 7 is rotated counterclockwise to drive the screw 8 to descend, so that the clamping block 9 moves down along the slide bar 11 to compensate for the wear. The ratchet 12 and the pawl 16 cooperate to prevent the screw sleeve 7 from reversing.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A multi-functional hand-held road roller based on modular design, including a base (1), a handrail (2) fixedly connected to the rear surface of the base (1), and pressure rollers (3) installed on both the front and rear sides below the base (1), with support plates (4) rotatably connected to the left and right ends of the pressure rollers (3). Its features are, A scraping module (5) is provided on the upper surface of the base (1) at the position opposite to the pressure roller (3). The scraping module (5) includes a C-shaped plate (6). A threaded sleeve (7) is rotatably connected through the upper surface of the C-shaped plate (6). A screw rod (8) is threadedly connected inside the threaded sleeve (7). A clamping block (9) is fixedly connected to the lower end of the screw rod (8). A scraper (10) is fixedly connected to the inner side of the clamping block (9). A sliding rod (11) is fixedly connected to the upper surface of the clamping block (9) on both the left and right sides of the screw rod (8). A ratchet (12) is fixedly sleeved on the outside of the threaded sleeve (7) above the C-shaped plate (6). A locking member (13) is provided on the upper surface of the C-shaped plate (6) to the left of the threaded sleeve (7).

2. The multi-functional walk-behind roller based on modular design according to claim 1, characterized in that, The locking element (13) includes a spring (14), with a fixing block (15) fixed to the left end of the spring (14) and a pawl (16) fixed to the right end of the spring (14). A fixing rod (17) is rotatably connected to the rear end of the pawl (16).

3. The multi-functional walk-behind roller based on modular design according to claim 1, characterized in that, The upper surface of the base (1) is provided with displacement modules (18) located in front of the front mud scraping module (5) and behind the rear mud scraping module (5). The displacement module (18) includes a telescopic cylinder (19). The telescopic end of the telescopic cylinder (19) is fixedly connected to a connecting plate (20). The lower surface of the connecting plate (20) is fixedly connected to both the left and right ends of the connecting plate (20). Universal wheels (21) are fixedly connected to both ends of the connecting plate (20).

4. The multi-functional walk-behind roller based on modular design according to claim 1, characterized in that, The upper end of the support plate (4) is fixed to the lower surface of the base (1), the lower end of the C-shaped plate (6) is fixed to the upper surface of the base (1), the screw (8) moves through the base (1), the lower end of the scraper (10) moves against the pressure roller (3), and the slide rod (11) moves through the base (1).

5. The multi-functional walk-behind roller based on modular design according to claim 2, characterized in that, The pawl (16) is attached to the ratchet (12), and the lower ends of the fixing block (15) and the fixing rod (17) are fixed to the upper surface of the C-shaped plate (6).

6. The multi-functional walk-behind roller based on modular design according to claim 3, characterized in that, The telescopic cylinder (19) is fixed to the upper surface of the base (1), and the connecting plate (20) is located below the base (1).

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