Blade switching type mower

Abstract

The utility model relates to the field of mowing machines, and discloses a blade switching type mowing machine which comprises a mowing machine body, a connecting rod, a mounting disc and a blade mounting disc, the connecting rod is fixedly mounted at one end of the mowing machine body, the mounting disc is fixedly mounted at the bottom end of the connecting rod, and the blade mounting disc is fixedly mounted at the other end of the mowing machine body. A blade mounting disc is movably mounted at the bottom end of the mounting disc, and a clamping device for quickly mounting the blade mounting disc is arranged in the mounting disc; the mowing machine is compact and reasonable in structural design, the problem that a traditional mowing machine usually adopts a fixed blade design and cannot adapt to lawns of different heights and densities is solved, and therefore the blades can be rapidly switched.

Description

Technical Field

[0001] The utility model relates to the field of lawn mowers, in particular to a blade switching type lawn mower. Background Art

[0002] With the increasing demand for urban greening and lawn maintenance, lawn mowers, as an important tool for lawn maintenance, have attracted widespread attention for their performance and efficiency. Currently, lawn mowers on the market are mainly divided into manual, electric and internal combustion engine types. These mowers have their own characteristics in structure, function and performance. Traditional mowers usually adopt a fixed blade design, which cannot adapt to lawns of different heights and densities, limiting their scope of use and efficiency. For this reason, we propose a blade switching mower. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a blade-switching lawn mower to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blade switching lawn mower, comprising a lawn mower body, a connecting rod, a mounting plate and a blade mounting plate, wherein a connecting rod is fixedly mounted on one end of the lawn mower body, a mounting plate is fixedly mounted on the bottom end of the connecting rod, and a blade mounting plate is movably mounted on the bottom end of the mounting plate, and further comprising:

[0005] A clamping device for quickly installing the blade mounting plate is arranged inside the mounting plate;

[0006] The top of the blade mounting plate is provided with a pushing block device for quickly fixing the blade mounting plate on the clamping device.

[0007] Preferably, a motor box is fixedly mounted on one end of the lawn mower body, a handle is fixedly mounted on the side of the outer surface of the lawn mower body corresponding to the motor box, and a grass baffle is fixedly mounted on the side of the outer surface of the lawn mower body corresponding to the connecting rod.

[0008] Preferably, four blades are fixedly mounted on the side surface of the blade mounting plate, and one end of the four blades are arranged in a cross shape on the blade mounting plate, and the other ends of the four blades are movably connected to one side of the grass guard plate.

[0009] Preferably, the clamping device comprises a mounting groove and an expansion tube, the mounting groove is provided at the bottom of the mounting plate, and the expansion tube is fixedly installed inside the bottom of the mounting plate corresponding to the mounting groove.

[0010] Preferably, the expansion tube is in the shape of a circular tube, and an elliptical hole is opened on the outer surface of the expansion tube, and one end of the expansion tube corresponding to the side of the elliptical hole is evenly divided into six arc-shaped spring pieces, and the bottom end of the mounting plate corresponds to the outer surface of the mounting groove and has a plurality of square grooves.

[0011] Preferably, the pushing block device includes a mounting tube, a fixing rod, a bolt rod and a pushing block, the mounting tube is fixedly mounted on the top of the blade mounting plate, the fixing rod is fixedly mounted on the outer surface of the mounting tube, and the pushing block is movably connected inside the mounting tube, and one end of the pushing block is fixedly connected to the bolt rod.

[0012] Preferably, a plurality of fixing rods are provided, and the plurality of fixing rods are arranged in a ring shape on the outer surface of the mounting tube, and one end of the plurality of fixing rods is movably connected to the inside of a plurality of square grooves provided in the mounting plate.

[0013] Preferably, the push block is flat-conical, and the top diameter of the push block is smaller than the bottom diameter, and the top end of the bolt rod passes through the blade mounting plate to form a threaded hole, and one end of the bolt rod is threadedly connected inside the threaded hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. This blade switching mower allows users to easily install and replace the blade mounting plate through the clamping device inside the mounting plate and the push block device on the top of the blade mounting plate. This not only improves work efficiency, but also greatly reduces the time and effort required to replace the blade.

[0016] 2. The blade switching lawn mower has an expansion tube design in the clamping device, which cooperates with the pushing block and the arc-shaped spring piece to ensure that the blade mounting plate can fit tightly to the mounting plate after installation and is not easy to shake or fall off, thereby ensuring the stability and safety of the lawn mower during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the blade mounting plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the block pushing device of the utility model;

[0020] Figure 4 It is a schematic diagram of the planing surface of the installation disk and the blade installation disk of the utility model.

[0021] In the figure: 1. lawn mower body; 2. motor box; 3. handle; 4. grass guard; 5. blade; 6. mounting slot; 7. expansion tube; 8. mounting tube; 9. fixing rod; 10. bolt rod; 11. push block; 12. mounting plate; 13. blade mounting plate; 14. connecting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 A blade switching lawn mower comprises a lawn mower body 1, a connecting rod 14, a mounting plate 12 and a blade mounting plate 13, wherein the connecting rod 14 is fixedly mounted on one end of the lawn mower body 1, the mounting plate 12 is fixedly mounted on the bottom end of the connecting rod 14, and the blade mounting plate 13 is movably mounted on the bottom end of the mounting plate 12, and further comprises:

[0024] The interior of the mounting plate 12 is provided with a clamping device for quickly mounting the blade mounting plate 13;

[0025] The top of the blade mounting plate 13 is provided with a push block device for quickly fixing it on the clamping device.

[0026] Furthermore, a motor box 2 is fixedly installed at one end of the lawn mower body 1, a handle 3 is fixedly installed on the outer surface of the lawn mower body 1 corresponding to the side of the motor box 2, and a grass baffle 4 is fixedly installed on the outer surface of the lawn mower body 1 corresponding to the side of the connecting rod 14.

[0027] Furthermore, four blades 5 are fixedly mounted on the side surface of the blade mounting plate 13 , and one end of the four blades 5 is arranged on the blade mounting plate 13 in a cross shape, and the other end of the four blades 5 is movably connected to one side of the grass guard 4 .

[0028] Furthermore, the clamping device includes a mounting groove 6 and an expansion tube 7 . The mounting groove 6 is provided at the bottom of the mounting plate 12 , and the expansion tube 7 is fixedly installed at the bottom of the mounting plate 12 corresponding to the interior of the mounting groove 6 .

[0029] Furthermore, the expansion tube 7 is in the shape of a circular tube, and an elliptical hole is opened on the outer surface of the expansion tube 7, and one end of the expansion tube 7 corresponding to the side of the elliptical hole is evenly divided into six arc-shaped spring pieces, and the bottom end of the mounting plate 12 corresponds to the outer surface of the mounting groove 6 and has a plurality of square grooves.

[0030] Furthermore, the pushing block device includes a mounting tube 8, a fixing rod 9, a bolt rod 10 and a pushing block 11. The mounting tube 8 is fixedly installed on the top of the blade mounting plate 13, the fixing rod 9 is fixedly installed on the outer surface of the mounting tube 8, and the pushing block 11 is movably connected inside the mounting tube 8, and one end of the pushing block 11 is fixedly connected to the bolt rod 10.

[0031] Furthermore, a plurality of fixing rods 9 are provided, and the plurality of fixing rods 9 are arranged in a ring shape on the outer surface of the mounting tube 8 , and one end of the plurality of fixing rods 9 is movably connected to the inside of a plurality of square grooves opened in the mounting plate 12 .

[0032] Furthermore, the push block 11 is flat-conical, and the top diameter of the push block 11 is smaller than the bottom diameter, and the top end of the bolt rod 10 passes through the blade mounting plate 13 to form a threaded hole, and one end of the bolt rod 10 is threadedly connected inside the threaded hole.

[0033] Working principle: when the blade 5 needs to be switched, firstly, by rotating the bolt rod 10, the threaded connection between the bolt rod 10 and the threaded hole on the blade mounting plate 13 is utilized to make the bolt rod 10 drive the pushing block 11 to move downward, thereby releasing the squeezing and expansion of the expansion tube 7 by the pushing block 11, thereby utilizing the elastic force of the arc-shaped spring piece of the expansion tube 7 to squeeze the spring piece end of the expansion tube 7 on the mounting tube 8, so that the mounting tube 8 is separated from the inside of the mounting groove 6, thereby making the blade mounting plate 13 drive the blade 5 to be removed from the mounting plate 12, and conversely, the blade 5 and the blade mounting plate 13 to be switched are installed into the inside of the mounting groove 6 through the mounting tube 8, and then the screw of the bolt rod 10 is The threaded connection between the threaded rod end and the threaded hole on the blade mounting plate 13 is achieved, so that the threaded rod end of the bolt rod 10 drives the pushing block 11 to move upward to the inside of the expansion tube 7, so that the pushing block 11 squeezes and expands the spring piece end of the expansion tube 7, so that the spring piece end of the expansion tube 7 and the inner wall of the mounting plate 12 tightly clamp the mounting tube 8, so that the blade mounting plate 13 together with the switched blade 5 is installed at the bottom of the mounting plate 12, thereby completing the switching process of the blade 5, and then the fixing rod 9 is located inside the square groove opened in the mounting plate 12, so that when the mounting plate 12 is rotated, the blade mounting plate 13 will be driven to rotate through the fixing rod 9, thereby driving the blade 5 to rotate to cut the grass.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blade switching lawn mower, comprising a lawn mower body (1), a connecting rod (14), a mounting plate (12) and a blade mounting plate (13), wherein the connecting rod (14) is fixedly mounted on one end of the lawn mower body (1), the mounting plate (12) is fixedly mounted on the bottom end of the connecting rod (14), and the blade mounting plate (13) is movably mounted on the bottom end of the mounting plate (12), characterized in that: Also includes: A clamping device for quickly installing the blade mounting plate (13) is provided inside the mounting plate (12); The top of the blade mounting plate (13) is provided with a pushing block device for quickly fixing it on the clamping device.

2. A blade switching lawn mower according to claim 1, characterized in that: A motor box (2) is fixedly mounted on one end of the lawn mower body (1), a handle (3) is fixedly mounted on the outer surface of the lawn mower body (1) on a side corresponding to the motor box (2), and a grass baffle (4) is fixedly mounted on the outer surface of the lawn mower body (1) on a side corresponding to the connecting rod (14).

3. A blade switching lawn mower according to claim 2, characterized in that: Four blades (5) are fixedly mounted on the side surface of the blade mounting plate (13), and one end of the four blades (5) is arranged in a cross shape on the blade mounting plate (13), and the other end of the four blades (5) is movably connected to one side of the grass guard plate (4).

4. The blade switching lawn mower according to claim 1, characterized in that: The clamping device comprises a mounting groove (6) and an expansion tube (7); the mounting groove (6) is provided at the bottom of the mounting plate (12), and the expansion tube (7) is fixedly installed at the bottom of the mounting plate (12) corresponding to the interior of the mounting groove (6).

5. The blade switching lawn mower according to claim 4, characterized in that: The expansion tube (7) is in the shape of a circular tube, and an elliptical hole is provided on the outer surface of the expansion tube (7), and one end of the expansion tube (7) corresponding to one side of the elliptical hole is evenly divided into six arc-shaped spring pieces, and a plurality of square grooves are provided on the outer surface of the bottom end of the mounting plate (12) corresponding to the mounting groove (6).

6. The blade switching lawn mower according to claim 1, characterized in that: The pushing block device comprises a mounting tube (8), a fixing rod (9), a bolt rod (10) and a pushing block (11); the mounting tube (8) is fixedly mounted on the top of the blade mounting plate (13); the fixing rod (9) is fixedly mounted on the outer surface of the mounting tube (8); the pushing block (11) is movably connected inside the mounting tube (8); and one end of the pushing block (11) is fixedly connected to the bolt rod (10).

7. The blade switching lawn mower according to claim 6, characterized in that: A plurality of fixing rods (9) are provided, and the fixing rods (9) are arranged in a ring shape on the outer surface of the mounting tube (8), and one end of the fixing rods (9) is movably connected to the inside of a plurality of square grooves provided on the mounting plate (12).

8. The blade-switchable lawn mower according to claim 6, characterized in that: The push block (11) is flat-conical, and the top diameter of the push block (11) is smaller than the bottom diameter. The top end of the bolt rod (10) penetrates the blade mounting plate (13) to form a threaded hole, and one end of the bolt rod (10) is threadedly connected inside the threaded hole.

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