Modularized heavy brushless hedge trimmer

Abstract

The utility model provides a modularized heavy brushless hedge trimmer, which relates to the technical field of garden machinery and comprises a hedge trimmer main body, four rollers are rotationally mounted at the bottom of the hedge trimmer main body; a second positioning block is arranged on the outer wall of the rear side of the hedge trimmer body. A blade supporting plate is mounted below the hedge trimmer main body; a blade rotating shaft is rotationally mounted in the middle of the blade supporting plate; a blade is mounted at the bottom end of the blade rotating shaft through a screw; a first mounting plate is fixed to the top of the front side of the blade supporting plate. A first locking block is mounted on the inner side of the top of the first mounting plate through a screw; a second mounting plate is mounted on the outer side of the second positioning block; a second locking block is installed on the rear side of the blade supporting plate through a screw. According to the hedge trimmer, when the blade needs to be replaced, the hedge trimmer does not need to be turned over, the blade can be taken out and replaced only by disassembling the blade supporting plate, and more labor is saved when the blade is replaced.

Description

Technical Field

[0001] This utility model relates to the field of garden machinery technology, and in particular to a modular heavy-duty brushless hedge trimmer. Background Technology

[0002] A hedge trimmer is a professional trimming tool specifically designed for trimming hedges, lawn edges, and other landscaping features. It typically uses a small gasoline engine or electric motor to power the blades for cutting.

[0003] Most heavy-duty hedge trimmers currently in use have their blades installed at the bottom of the machine. However, these blades are easily damaged during long-term use or when they collide with gravel, so they need to be replaced. But when replacing the blades, the hedge trimmer usually needs to be flipped over so that the blades are on the side before they can be disassembled and replaced. Since hedge trimmers are quite heavy, it is particularly difficult to replace the blades. Summary of the Invention

[0004] This utility model provides a modular heavy-duty brushless hedge trimmer, which does not require tipping over when the blades need to be replaced. The blades can be removed and replaced simply by disassembling the blade support plate, making blade replacement more labor-saving.

[0005] In a first aspect, this disclosure provides a modular heavy-duty brushless hedge trimmer, specifically comprising: a hedge trimmer body;

[0006] The hedge trimmer has four rotatable rollers mounted on its bottom; a handle is located on the top right side of the main body; a brushless motor is mounted on the top left side of the main body; a first positioning block is located on the front outer wall of the main body; a second positioning block is located on the rear outer wall of the main body; a blade support plate is mounted below the main body; a blade shaft is rotatably mounted in the middle of the blade support plate; a blade is mounted on the bottom end of the blade shaft with screws; a first mounting plate is fixed to the top front side of the blade support plate; a first locking block is mounted on the inner top of the first mounting plate with screws; a second mounting plate is mounted on the outer side of the second positioning block; and a second locking block is mounted on the rear side of the blade support plate with screws.

[0007] In at least some embodiments, the rear end of the blade support plate is provided with a rectangular opening with a cross-sectional area equal to that of the second mounting plate. When the blade support plate is installed, the bottom end of the second mounting plate will extend downward through the rectangular opening at the rear end of the blade support plate.

[0008] In at least some embodiments, the first mounting plate is provided with a rectangular groove with a top opening, and when the first mounting plate is slidably mounted on the outside of the first positioning block, the inner wall of the rectangular groove on the first mounting plate will be in close contact with the outer wall of the first positioning block.

[0009] In at least some embodiments, the second locking block is a C-shaped block, and after installation, the second locking block will wrap around the outer rear end of the blade support plate and be embedded in the rectangular groove in the middle of the second mounting plate. At the same time, the top outer wall of the second locking block will be in close contact with the bottom surface of the second positioning block.

[0010] In at least some embodiments, the second mounting plate has a rectangular groove in the middle with its four sides closed, and the second positioning block is an L-shaped block. After the second mounting plate is installed, the inner wall of the rectangular groove in the middle will be in close contact with the outer wall of the second positioning block.

[0011] In at least some embodiments, a hexagonal protrusion is provided at the top of the blade shaft, and a corresponding hexagonal groove is provided at the bottom of the brushless motor. After the blade support plate is installed, the hexagonal protrusion at the top of the blade shaft will be embedded in the hexagonal groove at the bottom of the brushless motor.

[0012] In at least some embodiments, the width of the first locking block is equal to the width of the rectangular groove on the first mounting plate, and a raised strip is provided on both the left and right sides of the first locking block. Two corresponding grooves are also provided on the inner side of the rectangular groove on the first mounting plate.

[0013] This utility model provides a modular heavy-duty brushless hedge trimmer, which has the following beneficial effects:

[0014] In this utility model, the blade support plate, together with the first mounting plate and the second mounting plate, forms a separate modular mechanism to support the blade. When in use, the blade is mounted on the blade shaft. The first mounting plate and the second mounting plate can be fixed by the first positioning block, the second positioning block, the first locking block, and the second locking block. When the blade needs to be replaced, there is no need to tip over the hedge trimmer. The blade can be removed and replaced simply by disassembling the blade support plate, making blade replacement more labor-saving. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application from the main axis side is shown;

[0019] Figure 2 A rear axle side schematic diagram of the overall structure of this application is shown;

[0020] Figure 3This is a partial cross-sectional view of the present application.

[0021] Figure 4 A partial axial view of the blade support plate during disassembly in this application is shown;

[0022] Figure 5 This paper shows a partial overhead side view of the blade support plate during disassembly in this application;

[0023] Figure 6 A partial structural diagram of the blade during disassembly is shown in this application;

[0024] List of reference numerals

[0025] 1. Main body of the hedge trimmer; 2. Rollers; 3. Handle; 4. Brushless motor; 5. Positioning block 1; 6. Positioning block 2; 7. Blade support plate; 8. Blade shaft; 9. Blade; 10. Mounting plate 1; 11. Locking block 1; 12. Mounting plate 2; 13. Locking block 2. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a modular heavy-duty brushless hedge trimmer, comprising: hedge trimmer body 1;

[0029] The hedge trimmer body 1 has four rotatable rollers 2 mounted on its bottom. These rollers support the other structural components of the device, allowing the body to move under their support. A handle 3 is located on the top right side of the body, allowing the user to push the body under the rollers. A brushless motor 4 is mounted on the top left side of the body, driving the blade shaft 8 and blades 9 to rotate. A first positioning block 5 is located on the front outer wall of the body, supporting and limiting the first mounting plate 10. A second positioning block 6 is located on the rear outer wall of the body, supporting and limiting the second mounting plate 12. A blade support plate 7 is mounted below the body, used for... A blade shaft 8 provides rotatable support; a blade shaft 8 is rotatably mounted in the middle of the blade support plate 7, and the blade shaft 8 is used to install the blade 9; a blade 9 is mounted on the bottom end of the blade shaft 8 via screws, and the blade 9 is used for trimming hedges and lawns; a first mounting plate 10 is fixed to the top front side of the blade support plate 7, and the first mounting plate 10 is used to fix the front side of the blade support plate 7; a first locking block 11 is mounted on the inner top of the first mounting plate 10 via screws, and the first locking block 11 is used to fix the height of the first mounting plate 10; a second mounting plate 12 is mounted on the outer side of the second positioning block 6, and the second mounting plate 12 is used to fix the rear side of the blade support plate 7; a second locking block 13 is mounted on the rear side of the blade support plate 7 via screws, and the second locking block 13 is used to fix the height of the second mounting plate 12.

[0030] In this embodiment of the disclosure, such as Figures 2-6 As shown, the blade support plate 7 has a rectangular opening at its rear end with a cross-sectional area equal to that of the second mounting plate 12. When the blade support plate 7 is installed, the bottom end of the second mounting plate 12 will extend downward through the rectangular opening at the rear end of the blade support plate 7. Therefore, the blade support plate 7 can be easily separated from the second mounting plate 12, making it convenient to pull the blade support plate 7 forward to replace the blade 9.

[0031] In this embodiment of the disclosure, such as Figure 1 and Figures 3-6 As shown, the first mounting plate 10 is provided with a rectangular groove with an opening at the top. When the first mounting plate 10 is slidably installed on the outside of the first positioning block 5, the inner wall of the rectangular groove on the first mounting plate 10 will be in close contact with the outer wall of the first positioning block 5. The opening at the top of the first mounting plate 10 can be easily slid down and removed. Moreover, the first mounting plate 10 will not wobble from side to side when it is installed on the outside of the first positioning block 5, thereby locking the horizontal position of the first mounting plate 10.

[0032] In this embodiment of the disclosure, such as Figures 3-5 As shown, the second locking block 13 is a C-shaped block. After installation, the second locking block 13 will wrap around the outer rear end of the blade support plate 7 and be embedded in the rectangular groove in the middle of the second mounting plate 12. At the same time, the top outer wall of the second locking block 13 will be in close contact with the bottom surface of the second positioning block 6. After installation, the second locking block 13 can not only lock the second mounting plate 12 and the blade support plate 7, but also restrict the second mounting plate 12 from sliding up and down on the outside of the second positioning block 6, thereby fixing the height of the second mounting plate 12.

[0033] In this embodiment of the disclosure, such as Figures 2-4 As shown, the second mounting plate 12 has a rectangular groove in the middle with its four sides closed, and the second positioning block 6 is an L-shaped block. After the second mounting plate 12 is installed, the inner wall of the rectangular groove in the middle will be in close contact with the outer wall of the second positioning block 6. The L-shaped second positioning block 6 can prevent the upper part of the second mounting plate 12 from flipping backward after installation, ensuring the firmness of the second mounting plate 12 after installation. Moreover, the second mounting plate 12 will not sway left and right when it is installed on the outside of the second positioning block 6, thus locking the horizontal position of the second mounting plate 12.

[0034] In this embodiment of the disclosure, such as Figure 1 and Figures 3-6 As shown, the width of the first locking block 11 is equal to the width of the rectangular groove on the first mounting plate 10. The first locking block 11 also has a raised strip on both the left and right sides. The rectangular groove on the first mounting plate 10 also has two corresponding grooves on the inner side. During installation, the first locking block 11 can be pushed into the rectangular groove on the first mounting plate 10 and fixed to the raised block on the front top of the hedge trimmer body 1 with screws. The raised strips on the left and right sides of the first locking block 11 can restrict the first mounting plate 10 from sliding up and down, thereby fixing the height of the first mounting plate 10.

[0035] Example 2, based on Example 1, such as Figures 1-6 As shown, a hexagonal protrusion is provided at the top of the blade shaft 8, and a corresponding hexagonal groove is provided at the bottom of the brushless motor 4. After the blade support plate 7 is installed, the hexagonal protrusion at the top of the blade shaft 8 will be embedded in the hexagonal groove at the bottom of the brushless motor 4. When the mounting plate 10 and the blade support plate 7 are pushed downward as a whole, the hexagonal protrusion at the top of the blade shaft 8 will disengage from the hexagonal groove at the bottom of the brushless motor 4. Then the blade support plate 7 can be pulled forward from the bottom of the hedge trimmer body 1, which facilitates the disassembly and replacement of the blade 9 at the bottom of the blade shaft 8. When the blade support plate 7 is installed, the hexagonal protrusion at the top of the blade shaft 8 will be embedded in the hexagonal groove at the bottom of the brushless motor 4. Therefore, when the brushless motor 4 rotates, it can drive the blade shaft 8 to rotate synchronously.

[0036] The working principle of this embodiment: When using this device to trim hedges and lawns, the brushless motor 4 can be turned on. Then, by holding the handle 3, the main body 1 of the hedge trimmer can be moved under the support of the rollers 2. During this process, the brushless motor 4 will drive the blade shaft 8 and the blade 9 at its bottom to rotate at high speed, thus trimming the hedges and lawns. When the blade 9 is damaged and needs to be replaced, simply remove the first locking block 11 and the second locking block 13 and pull them outwards. At this time, the upper and lower positions of the first mounting plate 10 and the second mounting plate 12 can be unlocked. Then, the second mounting plate 12 can be... Supported by the second positioning block 6, pull upwards and push the second mounting plate 12 backwards to disassemble it. Then, push the first mounting plate 10 and the blade support plate 7 downwards as a whole. During this process, the rectangular groove on the first mounting plate 10 will disengage from the first positioning block 5, and the hexagonal protrusion at the top of the blade shaft 8 will disengage from the hexagonal groove at the bottom of the brushless motor 4. Then, the blade support plate 7 can be pulled forward from the bottom of the hedge trimmer body 1, making it convenient to disassemble and replace the blade 9 at the bottom of the blade shaft 8. After the blade 9 is replaced, the blade support plate 7 can be pushed back into the hedge trimmer body. Align the bottom of the body 1 with the opening at the top of the mounting plate 10 and the positioning block 5. Then push the mounting plate 10 and the blade support plate 7 upwards as a whole. At this time, the rectangular groove on the mounting plate 10 will fit tightly with the positioning block 5. Simultaneously, the hexagonal protrusion at the top of the blade shaft 8 will embed into the hexagonal groove at the bottom of the brushless motor 4. Therefore, when the brushless motor 4 rotates, it can drive the blade shaft 8 to rotate synchronously. Then push the locking block 11 into the rectangular groove on the mounting plate 10 and fix it to the protrusion on the front top of the hedge trimmer body 1 with screws. The raised strips on the left and right sides can restrict the first mounting plate 10 from sliding up and down, thereby fixing the height of the first mounting plate 10. Then, push the second mounting plate 12 down to the bottom. Then, the second locking block 13 can be installed on the outer side of the rear end of the blade support plate 7 with screws. After the second locking block 13 is installed, it can lock the second mounting plate 12 to the blade support plate 7, and also restrict the second mounting plate 12 from sliding up and down on the outer side of the second positioning block 6, thereby fixing the height of the second mounting plate 12. At the same time, it will also firmly fix the blade support plate 7, and then the device can continue to be used.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0039] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A modular heavy-duty brushless hedge trimmer, comprising: The main body of the hedge trimmer (1); characterized in that: The hedge trimmer body (1) has four rotatable rollers (2) mounted on its bottom; a handle (3) is provided on the top right side of the hedge trimmer body (1); a brushless motor (4) is installed on the top left side of the hedge trimmer body (1); a first positioning block (5) is provided on the front outer wall of the hedge trimmer body (1); a second positioning block (6) is provided on the rear outer wall of the hedge trimmer body (1); a blade support plate (7) is installed below the hedge trimmer body (1); the blade support plate A blade shaft (8) is rotatably mounted at the middle position of (7); a blade (9) is mounted at the bottom end of the blade shaft (8) by screws; a first mounting plate (10) is fixed to the top front side of the blade support plate (7); a first locking block (11) is mounted on the inner top side of the first mounting plate (10) by screws; a second mounting plate (12) is mounted on the outer side of the second positioning block (6); a second locking block (13) is mounted on the rear side of the blade support plate (7) by screws.

2. The modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The first mounting plate (10) is provided with a rectangular groove with an opening at the top, and when the first mounting plate (10) is slidably installed on the outside of the first positioning block (5), the inner wall of the rectangular groove on the first mounting plate (10) will be in close contact with the outer wall of the first positioning block (5).

3. The modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The second mounting plate (12) has a rectangular groove in the middle with the four sides closed. The second positioning block (6) is an L-shaped block. After the second mounting plate (12) is installed, the inner wall of the rectangular groove in the middle will be in close contact with the outer wall of the second positioning block (6).

4. The modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The width of the first locking block (11) is equal to the width of the rectangular groove on the first mounting plate (10). The first locking block (11) is also provided with a raised strip on both the left and right sides. The rectangular groove on the first mounting plate (10) is also provided with two corresponding grooves on the inner side.

5. A modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The blade support plate (7) has a rectangular opening at its rear end with a cross-sectional area equal to that of the second mounting plate (12). When the blade support plate (7) is installed, the bottom end of the second mounting plate (12) will extend downward through the rectangular opening at the rear end of the blade support plate (7).

6. A modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The second locking block (13) is a C-shaped block, and after installation, the second locking block (13) will wrap around the rear side of the blade support plate (7) and be embedded in the rectangular groove in the middle of the second mounting plate (12). At the same time, the top outer wall of the second locking block (13) will be in close contact with the bottom surface of the second positioning block (6).

7. A modular heavy-duty brushless hedge trimmer according to claim 1, characterized in that, The blade shaft (8) has a hexagonal protrusion at the top and a corresponding hexagonal groove at the bottom of the brushless motor (4). After the blade support plate (7) is installed, the hexagonal protrusion at the top of the blade shaft (8) will be embedded in the hexagonal groove at the bottom of the brushless motor (4).

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