A new handrail structure for floor grinding machines

Abstract

The utility model discloses a novel ground grinder handrail structure relates to handrail structure technical field. The novel ground grinder handrail structure, including the casing, the inside fixed mounting of casing has first sheet metal spare and second sheet metal spare, and the both sides board body of first sheet metal spare is equipped with first connecting rod, and the both ends fixed connection of first connecting rod has first index tooth disc, and the edge of first index tooth disc is provided with a plurality of first tooth groove, and the top board body rotation is connected with first adjusting handle of first sheet metal spare, and the guide slot sliding of first adjusting handle is provided with connecting shaft, and the top end rotation is connected with connecting plate of connecting shaft, and the one end rotation is connected with first limit rod of connecting plate away from connecting shaft, and the both ends fixed connection of first limit rod has first wedge index tooth, and the utility model has realized the stable reliable adjustment of handrail multi -angle, multi -gear, has improved the convenience of handrail adjustment, the durability of structure and the comfort level of man -machine operation obviously.

Description

Technical Field

[0001] This utility model relates to the field of handrail structure technology, specifically a novel handrail structure for a floor grinder. Background Technology

[0002] A floor grinder is a professional, high-efficiency mechanical device used for floor treatment, widely applied to surface treatment of various materials such as concrete, stone, terrazzo, and epoxy flooring. Its core functions include deep cleaning, removal of old coatings, surface smoothness restoration, and polishing and waxing. It significantly improves the smoothness, wear resistance, and anti-slip properties of the floor, making it suitable for floor renovation and routine maintenance in various commercial and industrial locations such as airports, shopping malls, factories, and warehouses. Through mechanized operation, floor grinders not only greatly improve work efficiency but also ensure that the treated floor achieves professional-grade aesthetics and functionality, making it an indispensable tool in modern building maintenance.

[0003] Currently, most concrete floor grinding machines on the market use a simple fixed design for their handrails. This rigid structure cannot be flexibly adjusted according to the operator's height, working posture, or specific construction scenario, resulting in poor operating comfort and low human-machine adaptability. Especially during long and heavy grinding operations, it will significantly increase the operator's labor intensity and affect construction efficiency and quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel handrail structure for floor grinders, thereby solving the problem mentioned in the background art that the existing fixed handrail structures for floor grinders cannot adapt to the operator's height, working posture, and construction scenario, resulting in poor comfort.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel handrail structure for a floor grinder includes a housing. A first sheet metal part and a second sheet metal part are fixedly installed inside the housing. A first connecting rod is sleeved on both sides of the first sheet metal part. A first indexing gear is fixedly connected to both ends of the first connecting rod. The edge of the first indexing gear is provided with multiple first tooth grooves. A first adjusting handle is rotatably connected to the top plate of the first sheet metal part. A connecting shaft is slidably arranged in the guide groove of the first adjusting handle. A connecting plate is rotatably connected to the top end of the connecting shaft. The connecting plate is located at... A first limiting rod is rotatably connected to one end of the connecting shaft. A first wedge-shaped indexing tooth is fixedly connected to both ends of the first limiting rod. A second connecting rod is sleeved on both sides of the second sheet metal part. Two second indexing toothed discs are fixedly connected to the outer surface of the second connecting rod. A second guide rod is fixedly connected inside the second sheet metal part. A second limiting rod is sleeved on the outer surface of the second guide rod. A connecting piece is fixedly connected to the middle of the side of the second limiting rod away from the second indexing toothed disc. A second adjusting handle is rotatably connected to the end of the connecting piece away from the second limiting rod. Curved handles are fixedly connected to both ends of the second connecting rod.

[0006] Preferably, a host control panel is fixedly installed on the top of the housing, and both ends of the first connecting rod and the first limiting rod extend through to both sides of the housing, and the interior of the first tooth groove matches the outer surface of the first wedge-shaped indexing tooth.

[0007] Preferably, the end of the first adjusting handle away from the first sheet metal part extends to the outside of the housing, the first sheet metal part is fixedly connected to the inside of the first guide rod, and the inside of the first limiting rod is sleeved on the outer surface of the first guide rod.

[0008] Preferably, a first spring is sleeved on the outside of the first guide rod, one end of the first spring is fixedly connected to the outer surface of the first limiting rod, and the end of the first spring away from the first limiting rod is fixedly connected to the inner surface of the first sheet metal part.

[0009] Preferably, the curved handle extends to the outside of the housing, the edge of the second indexing disc is provided with a plurality of second tooth grooves, and the two ends of the second limiting rod are fixedly connected with second wedge-shaped indexing teeth, the outer surface of the second wedge-shaped indexing teeth matching the interior of the second tooth grooves.

[0010] Preferably, the second adjusting handle is rotatably connected to the second sheet metal part, a second spring is sleeved on the outside of the second guide rod, one end of the second spring is fixedly connected to the outer surface of the second limiting rod, and the end of the second spring away from the second limiting rod is fixedly connected to the inner surface of the second sheet metal part.

[0011] Beneficial effects

[0012] This utility model provides a novel handrail structure for a floor grinder. It has the following beneficial effects:

[0013] This novel handrail structure for a floor grinder utilizes a double-support linkage structure comprised of a first sheet metal part, a second sheet metal part, a first connecting rod, and a second connecting rod. Combined with the engagement and unlocking mechanism of a first indexing gear, a first wedge-shaped indexing tooth, a second indexing gear, and a second wedge-shaped indexing tooth, it achieves stable and reliable adjustment of the handrail across multiple angles and positions. The cooperation of the first and second guide rods with the first and second springs ensures precise guidance of the movement of the first and second limit rods and automatic reset and locking after operation. This significantly improves the convenience of handrail adjustment, structural durability, and human-machine comfort. The structure also ensures more even and stable force transmission during adjustment, effectively reducing wear on key components and extending the overall service life. Furthermore, its compact and stable layout enhances the overall rigidity and operational stability of the handrail, making it suitable for various complex working environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the housing of this utility model;

[0017] Figure 4 This is a side sectional view of the housing of this utility model.

[0018] In the diagram: 1. Housing; 2. Main unit control panel; 3. First sheet metal part; 4. First connecting rod; 5. First indexing gear; 6. First tooth groove; 7. First adjusting handle; 8. Connecting shaft; 9. Connecting plate; 10. First limiting rod; 11. First guide rod; 12. First spring; 13. First wedge-shaped indexing tooth; 14. Second sheet metal part; 15. Second connecting rod; 16. Second indexing gear; 17. Second tooth groove; 18. Second guide rod; 19. Second limiting rod; 20. Connecting part; 21. Second wedge-shaped indexing tooth; 22. Second adjusting handle; 23. Second spring; 24. Curved handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides a novel handrail structure for a floor grinder, including a housing 1. A first sheet metal part 3 and a second sheet metal part 14 are fixedly installed inside the housing 1. First connecting rods 4 are sleeved on both sides of the first sheet metal part 3. First indexing gears 5 are fixedly connected to both ends of the first connecting rods 4. Multiple first toothed grooves 6 are provided on the edge of the first indexing gears 5. A first adjusting handle 7 is rotatably connected to the top plate of the first sheet metal part 3. A connecting shaft 8 is slidably arranged in the guide groove of the first adjusting handle 7. A connecting plate 9 is rotatably connected to the top of the connecting shaft 8. A first limiting rod 1 is rotatably connected to the end of the connecting plate 9 away from the connecting shaft 8. 0. The first limiting rod 10 is fixedly connected to the two ends of the first wedge-shaped indexing teeth 13. The two side plates of the second sheet metal part 14 are fitted with the second connecting rod 15. The outer surface of the second connecting rod 15 is fixedly connected with two second indexing teeth 16. The inside of the second sheet metal part 14 is fixedly connected with the second guide rod 18. The outer surface of the second guide rod 18 is fitted with the second limiting rod 19. The middle of the side of the second limiting rod 19 away from the second indexing teeth 16 is fixedly connected with the connecting piece 20. The end of the connecting piece 20 away from the second limiting rod 19 is rotatably connected with the second adjusting handle 22. The two ends of the second connecting rod 15 are fixedly connected with curved handles 24.

[0021] Specifically, the main control panel 2 is fixedly installed on the top of the housing 1. The two ends of the first connecting rod 4 and the first limiting rod 10 both extend to the two sides of the housing 1. The interior of the first tooth groove 6 matches the outer surface of the first wedge-shaped indexing tooth 13. The fixed installation of the main control panel 2 provides a human-machine interface, which makes it easy for the operator to control the working status of the grinding machine in real time. The matching design of the first wedge-shaped indexing tooth 13 and the first tooth groove 6 realizes precise locking of multiple gears.

[0022] Specifically, the end of the first adjusting handle 7 away from the first sheet metal part 3 extends to the outside of the housing 1. The first guide rod 11 is fixedly connected inside the first sheet metal part 3. The inside of the first limiting rod 10 is sleeved on the outer surface of the first guide rod 11. The first guide rod 11 provides linear motion guidance for the first limiting rod 10, so that it moves along a fixed trajectory during the adjustment process to avoid deviation or jamming, while ensuring that the meshing / separation action of the first wedge-shaped indexing tooth 13 and the first tooth groove 6 is accurate and reliable.

[0023] Specifically, a first spring 12 is sleeved on the outside of the first guide rod 11. One end of the first spring 12 is fixedly connected to the outer surface of the first limiting rod 10, and the other end of the first spring 12 away from the first limiting rod 10 is fixedly connected to the inner surface of the first sheet metal part 3. The first spring 12 pushes the first limiting rod 10 to automatically return to its original position through the elastic reset function, so that the first wedge-shaped indexing tooth 13 always presses against the first tooth groove 6, which simplifies the adjustment operation process and eliminates the need for manual reset.

[0024] Specifically, the curved handle 24 extends to the outside of the housing 1, and the edge of the second indexing gear 16 is provided with multiple second tooth grooves 17. The two ends of the second limiting rod 19 are fixedly connected with second wedge-shaped indexing teeth 21. The outer surface of the second wedge-shaped indexing teeth 21 matches the inside of the second tooth grooves 17. The matching of the second wedge-shaped indexing teeth 21 and the second tooth grooves 17 realizes the stepless angle adjustment function of the curved handle 24, adapts to different working posture requirements, and reduces operating fatigue.

[0025] Specifically, the second adjusting handle 22 is rotatably connected to the second sheet metal part 14, and the second guide rod 18 is sleeved with a second spring 23. One end of the second spring 23 is fixedly connected to the outer surface of the second limiting rod 19, and the other end of the second spring 23 away from the second limiting rod 19 is fixedly connected to the inner surface of the second sheet metal part 14. The second spring 23 provides elastic restoring force for the second limiting rod 19, so that the second limiting rod 19 automatically resets and ensures that the meshing pressure between the second wedge-shaped indexing tooth 21 and the second tooth groove 17 is constant.

[0026] The working principle of the above embodiments:

[0027] In use, the entire device is mounted on the main unit of the floor grinder via the first indexing gear plate 5. By rotating the first adjusting handle 7, the first limiting rod 10 is pulled down by the connecting plate 9, causing the first limiting rod 10 to move along the first guide rod 11. The first spring 12 is compressed, and the first limiting rod 10 drives the first wedge-shaped indexing tooth 13 to leave the first tooth groove 6 of the first indexing gear plate 5. At this time, the housing 1 can be rotated to adjust it to a suitable angle. After releasing the first adjusting handle 7, the first limiting rod 10 returns to its original position under the elastic restoring force of the first spring 12, and the first wedge-shaped indexing tooth 13 is engaged in the first tooth groove 6 at the corresponding position, thus restricting the housing 1 to the current angle. By pulling the second adjusting handle 22, the second limiting rod 19 moves along the second guide rod 18 under the connection of the connecting piece 20. The second spring 23 is compressed, and the second limiting rod 19 causes the second wedge-shaped indexing tooth 21 to leave the second tooth groove 17 on the second indexing gear plate 16. At this time, the curved handle 24 can be rotated, and the second connecting rod 15 and the second indexing gear plate 16 rotate accordingly. After the curved handle 24 is adjusted to a suitable angle, the second adjusting handle 22 is released. Under the action of the elastic restoring force of the second spring 23, the second limiting rod 19 returns to its original position, and the second wedge-shaped indexing tooth 21 is locked in the second tooth groove 17 at the corresponding position, so that the curved handle 24 is restricted to the current angle.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel handrail structure for a floor grinder, comprising a housing (1), characterized in that: The housing (1) is internally fixedly equipped with a first sheet metal part (3) and a second sheet metal part (14). The two side plates of the first sheet metal part (3) are fitted with a first connecting rod (4). The two ends of the first connecting rod (4) are fixedly connected with a first indexing gear plate (5). The edge of the first indexing gear plate (5) is provided with a plurality of first tooth grooves (6). The top plate of the first sheet metal part (3) is rotatably connected with a first adjusting handle (7). The guide groove of the first adjusting handle (7) is slidably provided with a connecting shaft (8). The top end of the connecting shaft (8) is rotatably connected with a connecting plate (9). The end of the connecting plate (9) away from the connecting shaft (8) is rotatably connected with a first limiting rod (10). The two ends of the first limiting rod (10) are rotatably connected with a first limiting rod (10). The first wedge-shaped indexing tooth (13) is fixedly connected to the end of the second sheet metal part (14). The second connecting rod (15) is sleeved on both sides of the second sheet metal part (14). Two second indexing gears (16) are fixedly connected to the outer surface of the second connecting rod (15). A second guide rod (18) is fixedly connected inside the second sheet metal part (14). A second limiting rod (19) is sleeved on the outer surface of the second guide rod (18). A connector (20) is fixedly connected to the middle of the side of the second limiting rod (19) away from the second indexing gear (16). A second adjusting handle (22) is rotatably connected to the end of the connector (20) away from the second limiting rod (19). Curved handles (24) are fixedly connected to both ends of the second connecting rod (15).

2. The novel handrail structure for a floor grinder according to claim 1, characterized in that: The top of the housing (1) is fixedly equipped with a host control panel (2). The two ends of the first connecting rod (4) and the first limiting rod (10) extend through to both sides of the housing (1). The interior of the first tooth groove (6) matches the outer surface of the first wedge-shaped indexing tooth (13).

3. The novel handrail structure for a floor grinder according to claim 1, characterized in that: The first adjusting handle (7) extends to the outside of the housing (1) at one end away from the first sheet metal part (3). The first guide rod (11) is fixedly connected inside the first sheet metal part (3). The inside of the first limiting rod (10) is sleeved on the outer surface of the first guide rod (11).

4. The novel handrail structure for a floor grinder according to claim 3, characterized in that: The first guide rod (11) is fitted with a first spring (12), one end of the first spring (12) is fixedly connected to the outer surface of the first limiting rod (10), and the other end of the first spring (12) away from the first limiting rod (10) is fixedly connected to the inner surface of the first sheet metal part (3).

5. The novel handrail structure for a floor grinder according to claim 1, characterized in that: The curved handle (24) extends to the outside of the housing (1), and the edge of the second indexing toothed disc (16) is provided with a plurality of second tooth grooves (17). The two ends of the second limiting rod (19) are fixedly connected with second wedge-shaped indexing teeth (21), and the outer surface of the second wedge-shaped indexing teeth (21) matches the interior of the second tooth grooves (17).

6. The novel handrail structure for a floor grinder according to claim 1, characterized in that: The second adjusting handle (22) is rotatably connected to the second sheet metal part (14). The second guide rod (18) is fitted with a second spring (23). One end of the second spring (23) is fixedly connected to the outer surface of the second limiting rod (19). The end of the second spring (23) away from the second limiting rod (19) is fixedly connected to the inner surface of the second sheet metal part (14).

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