Roller cutter mechanism with sharpening function and electric three-in-one grass trimmer

Abstract

This application discloses a roller blade mechanism with a sharpening function and an electric triple lawnmower, relating to the field of electric triple lawnmowers. It includes a lawnmower body, a frame on one side of the body, and corresponding side plates fixedly mounted on both sides of the frame. Each side plate has a corresponding sharpening mechanism, which includes roller blade mounting posts disposed within the two side plates. This application uses a screw shaft to drive the swing block and bottom blade to rotate, thereby adjusting the gap between the bottom blade and the roller blade. A locking ring locks the upper end of the adjusting nut in place. When sharpening is needed, a rod is inserted into the insertion hole, causing the adjusting part to rotate. This changes the length of the adjusting nut, bringing the bottom blade into contact with the roller blade. Then, the roller blade is driven to reverse, achieving the sharpening effect without manual operation, thus improving the convenience and flexibility of sharpening.

Description

Technical Field

[0001] This application relates to the field of electric triple lawnmowers, and more particularly to a rotary blade mechanism with a sharpening function and an electric triple lawnmower. Background Technology

[0002] The electric triple lawnmower is an electric device used for lawn maintenance. It features three blades working simultaneously and is mainly used for mowing large lawns such as football fields and golf courses.

[0003] Existing rotary lawnmowers trim lawns by working together with the rotary blades and the bottom blades. However, the blades wear down over time, leading to reduced cutting efficiency, uneven cuts, and negatively impacting the appearance and health of the lawn. Furthermore, current methods typically involve manual sharpening of the blades, which, while effective, is cumbersome and unsafe. Therefore, there is a need for an electric triple lawnmower with a blade sharpening function. Utility Model Content

[0004] To improve work efficiency and safety during sharpening, this application provides a roller blade mechanism with sharpening function and an electric triple lawnmower.

[0005] The technical solution of the roller blade mechanism with sharpening function and the electric triple lawnmower provided in this application is as follows: A roller blade mechanism with sharpening function and an electric triple lawnmower include a lawnmower body, a frame is provided on one side of the lawnmower body, and corresponding side plates are fixedly installed on both sides of the frame, and a corresponding sharpening mechanism is provided on both side plates.

[0006] The grinding mechanism includes hob mounting columns disposed within two side plates. Multiple corresponding hobs are fixedly mounted on the hob mounting columns. Each end of the hob mounting column is provided with a corresponding connecting shaft. A rotating shaft is provided on the side plate. A swing block is rotatably sleeved on the rotating shaft. A bottom cutter and an ear seat are fixedly mounted on the swing block. A crossbar is provided inside the ear seat. A screw shaft is provided on the crossbar. An adjusting nut and a spring are provided on the screw shaft. An adjusting part is provided on the adjusting nut. A locking ring is provided on the adjusting nut.

[0007] By adopting the above technical solution, the gap between the bottom cutter and the hob is adjusted, and the upper end of the adjusting nut can be locked and fixed by the locking ring. When sharpening is required, the insert rod is inserted into the insertion hole, which drives the adjusting part to rotate. At this time, the length of the adjusting nut will change, and the bottom cutter will be put into contact with the hob. Then, the hob is driven to reverse, and the sharpening effect can be achieved. This eliminates the need for staff to operate the sharpening, thus improving the convenience and flexibility of sharpening.

[0008] Preferably, the ear seat has a circular hole, and the crossbar is rotatably installed in the circular hole.

[0009] By adopting the above technical solution, the circular holes can be used to assist in the installation process.

[0010] Preferably, a conductive ring is fixedly installed at one bottom end of the spring, and the conductive ring is slidably sleeved on the screw shaft.

[0011] By adopting the above technical solution, the crossbar can be secured inside the ear socket by using a spring to push the conductive coil.

[0012] Preferably, the adjusting part has a socket, and a plug rod is provided in the socket.

[0013] By adopting the above technical solution, the insertion hole is provided to facilitate the installation of the insertion rod.

[0014] Preferably, the insertion rod and the insertion hole are the same size and are detachable.

[0015] By adopting the above technical solution, the insertion rod and the insertion hole are the same size and are detachable, which facilitates disassembly and use.

[0016] Preferably, a protective shell is fixedly installed on one side of the side plate, and the protective shell encloses the connecting shaft.

[0017] By adopting the above technical solution and setting an anti-slip shell, a protective function can be achieved.

[0018] Preferably, a motor is fixedly installed on one side of one of the side plates, and the output end of the motor is fixedly installed to one end of the connecting shaft.

[0019] By adopting the above technical solution, a motor can be installed to drive the connecting shaft to rotate.

[0020] This utility model also proposes an electric triple lawnmower, which includes a roller blade mechanism with a sharpening function.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This application employs a combination of a swing block and other components, which, through a screw shaft, drives the swing block and the bottom cutter to rotate, thereby adjusting the gap between the bottom cutter and the hob. A locking ring secures the upper end of the adjusting nut. When sharpening is required, the insert rod is inserted into the insertion hole, causing the adjusting part to rotate. This changes the length of the adjusting nut and brings the bottom cutter into contact with the hob. Then, the hob is driven to reverse, achieving the sharpening effect. This eliminates the need for manual sharpening, thus improving the convenience and flexibility of sharpening.

[0023] 2. This application employs the combined action of springs, etc., which can pre-tighten and limit the bottom blade, thereby preventing the bottom blade from shaking and providing pre-compression and buffering effects, thus improving stability and safety during use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a roller blade mechanism with a sharpening function and an electric triple lawnmower according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram illustrating the overall structure of the grinding tool, as shown in the embodiments of this application.

[0026] Figure 3 This is a partial unfolded schematic diagram illustrating the main structure of the grinding tool in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram illustrating the adjustment part of the grinding tool structure, which is the main feature of this application embodiment;

[0028] Reference numerals in the attached drawings: 1. Lawn mower body; 2. Frame; 3. Side plate; 4. Protective shell; 5. Roller blade; 6. Roller blade mounting post; 7. Connecting shaft; 8. Swing block; 9. Rotating shaft; 10. Ear seat; 11. Crossbar; 12. Adjusting nut; 13. Insert rod; 14. Locking ring; 15. Adjustment part; 16. Insertion hole; 17. Screw shaft; 18. Spring; 19. Conducting ring; 20. Round hole; 21. Bottom blade; 22. Motor. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses a roller blade mechanism with a sharpening function and an electric triple lawnmower.

[0031] Reference Figure 1-3 A roller blade mechanism with a sharpening function and an electric triple lawnmower include a lawnmower body 1, a frame 2 set on one side of the lawnmower body 1, corresponding side plates 3 fixedly installed on both sides of the frame 2, a sharpening mechanism and a limiting mechanism set on both side plates 3 respectively.

[0032] The grinding mechanism includes a hob mounting column 6 set in two side plates 3. Multiple corresponding hobs 5 are fixedly mounted on the hob mounting column 6. Both ends of the hob mounting column 6 are provided with corresponding connecting shafts 7. The side plates 3 are provided with a rotating shaft 9. A swing block 8 is rotatably mounted on the rotating shaft 9. A bottom knife 21 and an ear seat 10 are fixedly mounted on the swing block 8 respectively. A crossbar 11 is provided inside the ear seat 10.

[0033] The crossbar 11 is equipped with a screw shaft 17, and the screw shaft 17 is equipped with an adjusting nut 12 and a spring 18. The adjusting nut 12 is equipped with an adjusting part 15 and a locking ring 14. The ear seat 10 has a round hole 20, and the crossbar 11 is rotatably installed in the round hole 20. The adjusting part 15 has an insertion hole 16, and the insertion hole 16 has an insertion rod 13. The insertion rod 13 is the same size as the insertion hole 16 and is detachable. A protective shell 4 is fixedly installed on one side of the side plate 3, and the protective shell 4 encloses the connecting shaft 7. A motor 22 is fixedly installed on one side of one of the side plates 3, and the output end of the motor 22 is fixedly installed with one end of the connecting shaft 7.

[0034] In use, the screw shaft 17 drives the swing block 8 and the bottom blade 21 to rotate, thereby adjusting the gap between the bottom blade 21 and the hob 5. The upper end of the adjusting nut 12 can be locked and fixed by the locking ring 14. When sharpening is required, the insert rod 13 is inserted into the insert hole 16, which drives the adjusting part 15 to rotate. At this time, the length of the adjusting nut 12 will change, and the bottom blade 21 will be put into contact with the hob 5. Then, the hob 5 is driven to reverse, and the sharpening effect can be achieved. The sharpening can be done without the need for the operator to operate the sharpening, thus improving the convenience and flexibility of sharpening.

[0035] Reference Figure 3-4 The limiting mechanism includes a transmission ring 19 fixedly installed at one end of the bottom of the spring 18, and the transmission ring 19 is slidably sleeved on the screw shaft 17.

[0036] During use, the spring 18 can pre-tighten and limit the bottom blade 21, thereby preventing the bottom blade 21 from shaking and playing a pre-compression and buffering role, thus improving the stability and safety during use.

[0037] This utility model also proposes an electric triple lawnmower, which includes a roller blade mechanism with a sharpening function. The specific structure of the roller blade mechanism with the sharpening function is as described in the above embodiments. Since this electric triple lawnmower adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0038] The implementation principle of the roller blade mechanism with sharpening function and the electric triple lawnmower of this application embodiment is as follows: In use, the spring 18 pushes the transmission ring 19, thereby ensuring that the crossbar 11 is locked in the ear seat 10. The screw shaft 17 drives the swing block 8 and the bottom blade 21 to rotate, thereby adjusting the gap between the bottom blade 21 and the roller blade 5. The upper end of the adjusting nut 12 can be locked and fixed by the locking ring 14. When sharpening is required, the insertion rod 13 is inserted into the insertion hole 16, which drives the adjusting part 15 to rotate. At this time, the length of the adjusting nut 12 will change, and the bottom blade 21 will be attached to the roller blade 5. Then, the roller blade 5 is driven to reverse, and the sharpening effect can be achieved. Thus, there is no need for the operator to operate the sharpening, which can improve the convenience and flexibility of sharpening.

[0039] The spring 18 can pre-tighten and limit the bottom blade 21, thereby preventing the bottom blade 21 from shaking and playing a pre-compression and buffering role, thus improving the stability and safety during use.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary blade mechanism with a sharpening function, comprising a lawnmower body (1), characterized in that: The lawnmower body (1) has a frame (2) on one side, and corresponding side plates (3) are fixedly installed on both sides of the frame (2). Each of the two side plates (3) is equipped with a corresponding blade sharpening mechanism. The grinding mechanism includes a hob mounting column (6) set in two side plates (3). Multiple corresponding hobs (5) are fixedly mounted on the hob mounting column (6). Both ends of the hob mounting column (6) are provided with corresponding connecting shafts (7). A rotating shaft (9) is provided on the side plate (3). A swing block (8) is rotatably sleeved on the rotating shaft (9). A bottom knife (21) and an ear seat (10) are fixedly mounted on the swing block (8). A crossbar (11) is provided in the ear seat (10). A screw shaft (17) is provided on the crossbar (11). An adjusting nut (12) and a spring (18) are provided on the screw shaft (17). An adjusting part (15) is provided on the adjusting nut (12). A locking ring (14) is provided on the adjusting nut (12).

2. The hobbing mechanism with a grinding function according to claim 1, characterized in that: The ear seat (10) has a round hole (20) inside, and the crossbar (11) is rotatably installed in the round hole (20).

3. The hobbing mechanism with a sharpening function according to claim 1, characterized in that: A conductive ring (19) is fixedly installed at one bottom end of the spring (18), and the conductive ring (19) is slidably sleeved on the screw shaft (17).

4. A hobbing cutter mechanism with a sharpening function according to claim 1, characterized in that: The adjustment part (15) is provided with a socket (16), and a plug rod (13) is provided in the socket (16).

5. A hobbing cutter mechanism with a sharpening function according to claim 4, characterized in that: The insertion rod (13) is the same size as the insertion hole (16) and is detachable.

6. A hobbing mechanism with a sharpening function according to claim 1, characterized in that: A protective shell (4) is fixedly installed on one side of the side plate (3), and the protective shell (4) encloses the connecting shaft (7).

7. A hobbing mechanism with a sharpening function according to claim 6, characterized in that: One of the side plates (3) is fixedly mounted with a motor (22), and the output end of the motor (22) is fixedly mounted with one end of the connecting shaft (7).

8. An electric triple lawnmower, characterized in that: The invention includes a hobbing mechanism with a grinding function as described in any one of claims 1-7.

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