Polishing device for transmission shaft of mowing machine

Abstract

The utility model relates to the technical field of polishing devices, in particular to a mower transmission shaft polishing device which comprises a device body, the device body comprises a grip, a knife rest is connected to one side of the grip, and a grinding knife is arranged in the knife rest; one side of the grip is connected with an adjusting mechanism, the adjusting mechanism comprises a fixing rod, and the outer wall of one end of the fixing rod is sleeved with a positioning frame. By rotating the angle of the auxiliary holding rod, the auxiliary holding rod drives the positioning frame to rotate on the outer surface of the supporting rod and rotate with the supporting rod as the axis, the sliding block limits the movable angle of the fixing frame, and therefore the angle of the auxiliary holding rod is adjusted, and when the hand is loosened, the torsion spring drives the fixing frame to reset. Therefore, the auxiliary holding rod returns to the original position, the folding storage and adjustment effects on the auxiliary holding rod are achieved, and the problems that due to the fact that the auxiliary holding rod cannot be stored, the occupied space is large when the auxiliary holding rod is placed, and space use is affected are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, specifically a grinding device for a lawnmower drive shaft. Background Technology

[0002] The main function of the lawnmower drive shaft is to transmit the engine's power to the lawnmower's blades, driving the blades to rotate and cut. By connecting the engine and the blades, the drive shaft ensures that the engine's output power can be effectively transmitted to the lawnmower's cutting components, thereby achieving lawn trimming and cleaning. When processing the lawnmower drive shaft, a polishing device is used to polish and grind it.

[0003] When using the existing lawnmower drive shaft polishing device, its function is to polish the surface of the drive shaft. The existing polishing device is controlled by one hand, and the two-handed polishing device cannot be stored. When placed, it takes up a lot of space and affects the use of space. Utility Model Content

[0004] The purpose of this utility model is to provide a lawnmower drive shaft polishing device to solve the problem mentioned in the background art that the existing polishing devices are controlled by a single hand, while polishing devices that are controlled by two hands cannot be stored and occupy a lot of space when placed, affecting space utilization.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lawnmower drive shaft grinding device, comprising:

[0006] The device body includes a handle, a knife holder is connected to one side of the handle, and a sharpening knife is provided inside the knife holder;

[0007] An adjustment mechanism is connected to one side of the grip. The adjustment mechanism includes a fixed rod, a positioning frame is sleeved on the outer wall of one end of the fixed rod, a support rod is inserted inside one side of the positioning frame, a torsion spring is connected to one end of the support rod, a fixed frame is connected to one end of the torsion spring, a slider is connected to one side of the support rod, and an auxiliary grip rod is provided at the bottom of the positioning frame.

[0008] Preferably, a through hole is provided on one side of the positioning frame, and one end of the support rod passes through the through hole of the fixing rod and is connected to the torsion spring. The fixing rod and the positioning frame are hinged together by the support rod.

[0009] Preferably, the fixing frame is connected to the surface of the through hole outlet of the positioning frame, and the support rod and the fixing frame are elastically connected by a torsion spring.

[0010] Preferably, a groove is provided on one side of the fixing frame, and one end of the slider is inserted into the groove of the fixing frame and slidably connected to the fixing frame.

[0011] Preferably, the bottom surface of the positioning frame is connected to a limiting structure, the limiting structure includes a bearing, the bottom end of the bearing is connected to a threaded sleeve, the bottom surface of the threaded sleeve is provided with a rubber washer, and a limiting screw is inserted inside the rubber washer.

[0012] Preferably, the positioning frame and the threaded sleeve are movably connected by bearings, and the threaded sleeve and the limiting screw are rotatably connected by threads.

[0013] Preferably, the bottom end of the limiting screw is connected to the top surface of the auxiliary grip, and the rubber gasket ring fills the space between the threaded sleeve and the auxiliary grip for cushioning.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By rotating the angle of the auxiliary grip, the positioning frame rotates on the outer surface of the support rod, rotating around the support rod as the axis. The positioning frame and support rod are supported by the fixing rod, and the fixing frame drives the torsion spring to twist, which restricts the movable angle of the fixing frame by the slider. This allows for angle adjustment of the auxiliary grip. When the grip is released, the torsion spring drives the fixing frame to reset, thus returning the auxiliary grip to its original position. This achieves the function of folding, storing, and adjusting the auxiliary grip, avoiding the problem of occupying a lot of space and affecting space utilization when it cannot be stored.

[0016] 2. By aligning one end of the limiting screw with the bottom surface of the threaded sleeve, and then rotating the threaded sleeve, the bearing ensures that the rotation of the threaded sleeve does not affect the angle of the positioning frame. This allows the rubber washer to be fitted onto the outer wall of the top of the limiting screw, and the threaded sleeve to be rotatably connected to the outer surface of the limiting screw. The threads are used to connect and fix the threaded sleeve and the limiting screw, thereby filling the space between the threaded sleeve and the auxiliary grip for cushioning and making flexible contact between the two. This achieves the limitation of the positioning frame and the auxiliary grip by using the threaded sleeve and the limiting screw. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is a rear sectional perspective view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional side view and cross-sectional view of the structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged 3D structural diagram at point A;

[0021] Figure 5 This is a partial cross-sectional perspective view of the structure of this utility model from the rear.

[0022] In the diagram: 1. Device body; 11. Handle; 12. Tool holder; 13. Sharpening tool; 2. Adjustment mechanism; 21. Fixing rod; 22. Positioning frame; 23. Support rod; 24. Torsion spring; 25. Fixing frame; 26. Slider; 27. Auxiliary grip; 3. Limiting structure; 31. Bearing; 32. Threaded sleeve; 33. Rubber washer ring; 34. Limiting screw. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A lawnmower drive shaft grinding device, comprising:

[0026] The device body 1 includes a handle 11, a knife holder 12 is connected to one side of the handle 11, and a sharpening knife 13 is provided inside the knife holder 12. The internal material of the sharpening knife 13 is existing technology and can be purchased on the market. It is not considered as a technical protection point of this application, so no further details are made.

[0027] An adjustment mechanism 2 is connected to one side of the grip 11. The adjustment mechanism 2 includes a fixed rod 21. A positioning frame 22 is sleeved on the outer wall of one end of the fixed rod 21. A support rod 23 is inserted inside one side of the positioning frame 22. A torsion spring 24 is connected to one end of the support rod 23. A fixed frame 25 is connected to one end of the torsion spring 24. A slider 26 is connected to one side of the support rod 23. An auxiliary grip rod 27 is provided at the bottom of the positioning frame 22.

[0028] Furthermore, a through hole is provided on one side of the positioning frame 22, and one end of the support rod 23 passes through the through hole of the fixing rod 21 and is connected to the torsion spring 24. The fixing rod 21 and the positioning frame 22 are hinged together by the support rod 23, so that the positioning frame 22 can rotate with the support rod 23 as the axis.

[0029] Furthermore, the fixing frame 25 is connected to the surface of the through hole outlet of the positioning frame 22, and the support rod 23 and the fixing frame 25 are elastically connected by a torsion spring 24, so that the torsion spring 24 can drive the fixing frame 25 to twist.

[0030] Furthermore, a groove is provided on one side of the fixed frame 25, and one end of the slider 26 is inserted into the groove of the fixed frame 25 and slidably connected to the fixed frame 25, so as to position one end of the slider 26 through the groove of the fixed frame 25.

[0031] Furthermore, a limiting structure 3 is connected to the bottom surface of the positioning frame 22. The limiting structure 3 includes a bearing 31, a threaded sleeve 32 is connected to the bottom end of the bearing 31, a rubber washer 33 is provided on the bottom surface of the threaded sleeve 32, and a limiting screw 34 is inserted inside the rubber washer 33, so as to limit the positioning frame 22 and the auxiliary grip 27 by using the threaded sleeve 32 and the limiting screw 34.

[0032] Furthermore, the positioning frame 22 and the threaded sleeve 32 are movably connected by the bearing 31, and the threaded sleeve 32 and the limiting screw 34 are rotatably connected by the thread, so as to achieve the connection and fixation between the threaded sleeve 32 and the limiting screw 34 by the thread.

[0033] Furthermore, the bottom end of the limiting screw 34 is connected to the top surface of the auxiliary grip 27, and the rubber pad ring 33 is filled between the threaded sleeve 32 and the auxiliary grip 27 for buffering, so as to achieve flexible contact between the threaded sleeve 32 and the auxiliary grip 27 through the rubber pad ring 33.

[0034] Working principle: When adjusting the grinding device of the lawnmower drive shaft, the angle of the auxiliary grip 27 is rotated, causing the positioning frame 22 to rotate on the outer surface of the support rod 23. The positioning frame 22 and the support rod 23 rotate around the support rod 23 as the axis. The positioning frame 22 and the support rod 23 are supported by the fixing rod 21. The fixing frame 25 drives the torsion spring 24 to twist, and the slider 26 restricts the movable angle of the fixing frame 25, thereby adjusting the angle of the auxiliary grip 27. When the grip is released, the torsion spring 24 drives the fixing frame 25 to reset, thereby returning the auxiliary grip 27 to its original position, realizing the folding, storage and adjustment of the auxiliary grip 27.

[0035] When limiting the grinding device of the lawnmower drive shaft, one end of the limiting screw 34 is aligned with the bottom surface of the threaded sleeve 32, and then the threaded sleeve 32 is rotated. The bearing 31 ensures that the rotation of the threaded sleeve 32 does not affect the angle of the positioning frame 22, so that the rubber washer ring 33 is sleeved on the outer wall of the top of the limiting screw 34, and the threaded sleeve 32 is rotatably connected to the outer surface of the limiting screw 34. The thread is used to connect and fix the threaded sleeve 32 and the limiting screw 34, thereby filling the space between the threaded sleeve 32 and the auxiliary grip 27 for buffering, so that the two are in flexible contact, and the positioning frame 22 and the auxiliary grip 27 are limited by the threaded sleeve 32 and the limiting screw 34.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mower drive shaft polishing apparatus, characterized by, Include: The device body (1), the device body (1) includes a handle (11), one side of the handle (11) is connected with a knife holder (12), and the knife holder (12) is provided with a knife sharpener (13) inside; One side of the handle (11) is connected with an adjusting mechanism (2), the adjusting mechanism (2) includes a fixed rod (21), one end of the fixed rod (21) is sleeved with a positioning frame (22) on the outer wall, a support rod (23) is inserted into one side of the positioning frame (22) inside, one end of the support rod (23) is connected with a torsion spring (24), one end of the torsion spring (24) is connected with a fixed frame (25), one side of the support rod (23) is connected with a sliding block (26), and the bottom of the positioning frame (22) is provided with an auxiliary handle (27).

2. A mower drive shaft polishing device according to claim 1, wherein: A through hole is formed in one side of the positioning frame (22), one end of the support rod (23) passes through the through hole formed in the fixed rod (21) and is connected with the torsion spring (24), and the fixed rod (21) and the positioning frame (22) are hingedly connected through the support rod (23).

3. The mower drive shaft polishing device of claim 1, wherein: The fixed frame (25) is connected to the surface of the through hole outlet formed in the positioning frame (22), and the support rod (23) and the fixed frame (25) are elastically connected through the torsion spring (24).

4. The mower drive shaft polishing device of claim 1, wherein: One side of the fixed frame (25) is provided with a sliding groove, and one end of the sliding block (26) is inserted into the sliding groove formed in the fixed frame (25) and is slidably connected with the fixed frame (25).

5. The mower drive shaft polishing device of claim 1, wherein: The bottom surface of the positioning frame (22) is connected with a limiting structure (3), the limiting structure (3) includes a bearing (31), the bottom end of the bearing (31) is connected with a threaded sleeve (32), the bottom surface of the threaded sleeve (32) is provided with a rubber pad ring (33), and the rubber pad ring (33) is inserted with a limiting screw (34) inside.

6. A mower drive shaft polishing device according to claim 5, wherein: The positioning frame (22) and the threaded sleeve (32) are movably connected through the bearing (31), and the threaded sleeve (32) and the limiting screw (34) are rotatably connected through threads.

7. A mower drive shaft polishing device as claimed in claim 5, wherein: The bottom end of the limiting screw (34) is connected to the top surface of the auxiliary handle (27), and the rubber pad ring (33) is filled between the threaded sleeve (32) and the auxiliary handle (27) to buffer.

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