Assembled cutter and wood breaking device comprising same

Abstract

The invention relates to an assembled tool, comprising a base with a rectangular pyramid, a first tool, a second tool, a fastening screw and a fastening nut, by means of which the first tool and the second tool can be preferably fastened orthogonally to the base. According to the assembled cutter, the cutter is convenient to disassemble and maintain, and parts are convenient to replace and maintain, so that the long-term use performance of the cutter is improved, and the cost is reduced. The invention also relates to a wood breaking device comprising a main body and the assembled cutter detachably mounted to the main body.

Description

Technical Field

[0001] This invention relates to a cutting tool, specifically a modular cutting tool. This modular cutting tool is detachable and can be reassembled after maintenance. The invention also relates to a wood chopper incorporating this modular cutting tool. This wood chopper offers improved wood-chopping efficiency and is safer and more reliable. Background Technology

[0002] Existing knives, especially those used for cutting wood, are mostly one-piece, resulting in low efficiency and poor safety.

[0003] There is still a need for wood-breaking tools and implements that offer excellent operability, high efficiency, and good safety in this technological field. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides a new assembled cutting tool, which is particularly suitable for wood splitting. It not only greatly improves wood splitting efficiency, but also makes it easier to maintain and repair, and has excellent operation performance and higher safety.

[0005] Specifically, as one aspect of the present invention, an assembled cutting tool is provided, characterized in that the assembled cutting tool comprises: The base includes a first base portion and a second base portion integral with the first base portion. The first base portion has a cuboid shape, and the second base portion is a square pyramid shape extending upward from the first base portion. The base is hollow, and grooves are provided along the four edges of the square pyramid. An opening is provided on one side of the cuboid. A first cutting tool, comprising a first insertion guide portion and a first cutting edge portion, the first cutting tool having a first opening extending upward from the bottom end of the first insertion guide portion along the center line of the first cutting tool and a second opening orthogonal to the first opening, wherein the top end of the first opening is not lower than the top end of the second opening, the first cutting edge portion comprising a first cutting edge and a second cutting edge symmetrical with respect to the center line of the first cutting tool and extending obliquely upward respectively, the first cutting edge portion having a first receiving groove extending downward from the top end of the first cutting edge portion along the center line; The second cutting tool includes a second insertion guide portion and a second cutting edge portion. The second cutting tool is provided with a third opening extending upward from the bottom end of the second insertion guide portion along the center line of the second cutting tool and a fourth opening orthogonal to the third opening, and the top end of the third opening is not lower than the top end of the fourth opening. The second cutting tool is provided with a second receiving groove extending upward from the top end of the third opening along the center line of the second cutting tool. Assembly fastening screws and nuts, The assembled cutting tool is configured such that, when assembled, the first cutting tool is guided into the base via a first insertion guide and the first cutting edge is seated in two grooves formed on opposite edges; the second cutting tool is guided into the base via a second insertion guide and the second cutting edge is seated in two more grooves formed on opposite edges; the second cutting tool is seated on the first cutting tool via a first receiving groove, a third opening, and a second receiving groove; the fastening nut passes through the opening and is seated in the second opening and the fourth opening; and the fastening screw passes through the screw hole at the bottom of the base through the channel formed by the first opening and the third opening and is fastened to the fastening nut.

[0006] Compared to traditional one-piece cutters, the modular cutting tool of this invention can simultaneously split logs or other wood materials into four pieces. The specially designed base with a four-sided pyramid not only guides the cutting process but also helps to break the wood apart. This modular design facilitates disassembly, repair, parts replacement, and maintenance, thereby improving the long-term performance of the tool and reducing costs.

[0007] In a preferred embodiment, the first base portion has a cubic shape. The assembled cutter of the present invention with a cubic first base can uniformly divide wood into four parts, and the cutter is subjected to uniform force.

[0008] In a preferred embodiment, both the first and second cutting edges of the first knife are straight, and a portion of the first and second cutting edges are higher than the height of the second cutting edge. This design not only ensures that all cutting edges bear force simultaneously when splitting wood, but also prevents the wood from moving laterally, thereby increasing operational stability and safety.

[0009] In a preferred embodiment, the ends of the first and second cutting edges of the first tool are chamfered. This design further improves operational safety.

[0010] In one embodiment, the first cutting edge of the first tool is provided with mounting holes on both sides for mounting to the wood chipper body.

[0011] In a preferred embodiment, the assembled cutting tool is made of steel.

[0012] As another aspect of the present invention, a wood chopper is provided, the wood chopper comprising a main body, the main body including a base, a support frame vertically coupled to the base and a feed portion coupled to the support frame, characterized in that the wood chopper further includes the assembled blade of the present invention mounted to the support frame.

[0013] In a preferred embodiment, the support frame is provided with a groove and multiple mounting holes at different heights. This design allows for height adjustment of the cutting tool to accommodate different types of wood.

[0014] In a preferred embodiment, the feed section is a disc with symmetrical openings. This design allows for the splitting of larger pieces of wood.

[0015] In one embodiment, the body is a single piece and is made of iron or steel.

[0016] In this application, "height" refers to the height relative to the bottom end of the base of the assembled cutter of the present invention, or, in the case of a wood splitter, relative to the lower end face of the base.

[0017] In this application, terms such as "first" and "second" may appear for descriptive convenience only and do not indicate or imply any order.

[0018] The wood splitter of the present invention with specially designed assembled blades not only significantly improves wood splitting efficiency, but also greatly enhances safety. The blades are very convenient to disassemble, replace, repair and maintain, significantly reducing the cost of using and replacing the blades. Attached Figure Description

[0019] Figure 1 This is an exploded view of a combined cutting tool according to the present invention.

[0020] Figure 2 For the present invention and Figure 1 A three-dimensional diagram of a corresponding combination cutting tool.

[0021] Figure 3 The top view (above) and front view (below) of the nut used in the combined cutting tool of the present invention are shown.

[0022] Figure 4 for Figure 2 AA view of the combined cutting tool of the present invention.

[0023] Figure 5 for Figure 4 The BB view of the middle view.

[0024] Figure 6 This is a three-dimensional schematic diagram of a wood-breaking device according to the present invention. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments of the present invention described in the drawings are for illustrative purposes only and are not drawn strictly to actual dimensions and scale. Therefore, the drawings in this invention should not be construed as limiting the invention in any way. The embodiments listed in this application are merely illustrative examples and do not limit the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

[0026] For the sake of brevity, not all parts or features are labeled in some of the accompanying drawings. Therefore, when reading the following description, all the accompanying drawings should be consulted for a clear and complete understanding of the invention.

[0027] It should be understood that directional terms that may appear in this invention, such as but not limited to "up", "down", "left", "right", "front", "back", "horizontal", and "vertical", are only relative concepts and should not be interpreted as limiting the scope of this invention.

[0028] Reference Figure 1-5 .like Figure 1 As shown, and also refer to Figure 2-5 An assembled cutting tool 100 of the present invention includes a base 10, a first cutting tool 20, a second cutting tool 30, a fastening screw 40, and a fastening nut 50.

[0029] The base 10 includes a first base portion 110 and a second base portion 120 integrally formed with the first base portion 110. The first base portion 110 has a cube shape, while the second base portion 120 has a square pyramid shape extending upward from the first base portion 110.

[0030] It should be understood that the first base portion 110 may also adopt other cuboid shapes that are not cubes.

[0031] The base 10 is hollow to accommodate the insertion of the first tool 20 and the second tool 30.

[0032] The second base portion 120 has four piercing grooves 101, 102, and 103 along its four edges, and another groove not shown due to angle issues. These grooves are also suitable for the insertion and positioning of the first tool 20 and the second tool 30, respectively.

[0033] The first base portion 110 has an opening 105 on one side of a cube, and the opening 105 is configured to accommodate the insertion and reception of the fastening nut 50.

[0034] The first cutting tool 20 includes a first insertion guide portion 210 and a first cutting edge portion 220, which are integrally formed. The first cutting tool 20 has a first opening 204 extending upward from the bottom end of the first insertion guide portion 210 along its center line (not shown) and a second opening 250 orthogonal to the first opening 204. The top end of the first opening 204 is not lower than, and preferably higher than, the top end of the second opening 250.

[0035] The first cutting edge 220 includes a first cutting edge 221 and a second cutting edge 222 that are symmetrical with respect to the center line of the first cutting tool 20 and extend obliquely upward from the center line, respectively. The first cutting edge 221 and the second cutting edge 222 are preferably straight and together form a "V" shaped cutting edge.

[0036] The first cutting edge 220 also includes a first receiving groove 223 extending downward from the top of the first cutting edge 220 along the center line of the first cutting tool 20. The first receiving groove 223 is used to receive the second cutting tool 30.

[0037] The second cutting tool 30 includes a second insertion guide portion 310 and a second cutting edge portion 320. The second cutting tool 30 is provided with a third opening 304 extending upward from the bottom end of the second insertion guide portion 310 along the center line (not shown) of the second cutting tool 30 and a fourth opening 350 orthogonal to the third opening 304, and the top end of the third opening 304 is not lower than, and preferably higher than, the top end of the fourth opening 350.

[0038] The second cutting tool 30 is also provided with a second receiving groove 323 extending upward along its centerline from the top of the third opening 350. The second receiving groove 323 is used to receive the first cutting tool 20.

[0039] With the above structure, when the assembly is complete, the first cutter 20 is guided into the base 10 by the first insertion guide 210 and the first cutting edge 220 is seated and confined in the grooves formed on the two opposing edges, such as 101 and 103; the second cutter 30 is guided into the base 10 by the cooperation of the first receiving groove 223 and the second receiving groove 323 by the second insertion guide 310 and the second cutting edge 320 is seated in the other two grooves formed on the opposing edges (such as groove 102 and another groove not shown); the second cutter 30 is seated on the first cutter 20 in an orthogonal form by the first receiving groove 223, the third opening 304 and the second receiving groove 323; the fastening nut 50 passes through the opening 105 and is seated in the second opening 250 and the fourth opening 350, while the fastening screw 40 passes through the screw hole (not shown) at the bottom of the base 10 and is fastened to the fastening nut 50 through the channel formed by the first opening 204 and the third opening 304.

[0040] To achieve the objectives of this invention, the fastening nut 50 is specially designed. For example... Figure 1 , Figure 3 and Figure 5As shown, the fastening nut 50 differs from conventional nuts in that it is constructed with two orthogonal bevels 52 and 53 machined at one end of a flat cube to accommodate insertion into the second opening 250 and the fourth opening 350, which are also orthogonal. The position of the threaded hole 51 of the fastening nut 50 should correspond to the insertion position of the fastening screw 40 to achieve a reliable fastening connection.

[0041] The center lines of the first cutting tool 20 and the second cutting tool 30 described above coincide with the center line of the base 10. It can be understood that when the first base 110 of the assembled cutting tool 100 of the present invention is placed flat on the ground, the center line is the vertical line passing through the vertex of the square pyramid of the second base portion 120.

[0042] Although the preferred embodiments described above show and describe an assembled cutter 10 with the first cutter 20 and the second cutter 30 orthogonal, it is understood that the first cutter 20 and the second cutter 30 may also form other angles to cut the wood into pieces of different sizes.

[0043] The height of a portion of the first cutting edge 221 and a portion of the second cutting edge 222 of the first cutting tool 20 is preferably higher than the height of the second cutting edge 321. This design not only ensures that all cutting edges are subjected to force simultaneously when splitting wood, but also prevents the wood from moving laterally, thereby increasing the stability and safety of the operation.

[0044] The ends of the first cutting edge 221 and the second cutting edge 222 of the first cutting tool 20 are preferably chamfered 2201 and 2202, respectively. This design can further improve the safety of operation.

[0045] When used in a wood splitter, preferably, the first cutting edge 220 of the first cutter 20 is provided with mounting holes 225, 226, 227, and 228 on both sides for mounting to the wood splitter body.

[0046] Accordingly, Figure 6 A wood chipper 300 including the aforementioned combined blade 100 is shown. In addition to the combined blade 100, the wood chipper 300 also includes a body 200 on which the combined blade 100 is mounted. Figure 6 As shown, the main body 200 includes a base 220, support frames 210 and 230 vertically connected to the base 220, and a feeding section 240 connected to the support frames 210 and 230. The two sides of the first cutting edge of the combined cutter 100 are respectively mounted on the support frames 210 and 230 of the wood chipper main body 200.

[0047] Preferably, the support frames 210 and 230 are respectively provided with sliding grooves (not shown) and multiple mounting holes (not shown) at different heights. Multiple mounting screws 211 and 231 (e.g., four in total) are passed through the corresponding mounting holes and the mounting holes on the first cutter, and secured with mounting nuts to fix the combined cutter 100 to the wood chipper body 200. This design allows for cutter height adjustment to suit different types of wood.

[0048] The feed section 240 serves to guide and limit the wood. Preferably, the feed section 240 is a disc with symmetrical openings 250. This design allows for the splitting of larger pieces of wood.

[0049] The combined cutting tool 100 and the wood-breaking frame body 200 of the present invention are preferably made of metal materials, and particularly preferably of steel.

[0050] The wood splitter using the combined blade 100 of this invention can not only simultaneously split wood into four pieces, but also, due to its specific blade design, especially the "V"-shaped design of the first blade, it can simultaneously limit the movement of the wood during the splitting process, making the splitting safer. Furthermore, the combined blade 100 can be detached from the main body 200 of the wood splitter as a whole, and it is also detachable. Therefore, when the blades need sharpening and maintenance, the first and second blades can be easily removed for sharpening and maintenance. At the same time, if any part of the combined blade 100 is damaged and needs replacement, it can also be easily replaced.

[0051] Based on the description of preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious modifications to the present invention without departing from its spirit or scope may also achieve the purpose of the present invention.

Claims

1. An assembled cutting tool, characterized in that, The assembled cutting tool includes: The base includes a first base portion and a second base portion integral with the first base portion. The first base portion has a cuboid shape, and the second base portion is a square pyramid shape extending upward from the first base portion. The base is hollow, and grooves are provided along the four edges of the square pyramid. An opening is provided on one side of the cuboid. A first cutting tool, comprising a first insertion guide portion and a first cutting edge portion, the first cutting tool having a first opening extending upward from the bottom end of the first insertion guide portion along the center line of the first cutting tool and a second opening orthogonal to the first opening, wherein the top end of the first opening is not lower than the top end of the second opening, the first cutting edge portion comprising a first cutting edge and a second cutting edge symmetrical with respect to the center line of the first cutting tool and extending obliquely upward respectively, the first cutting edge portion having a first receiving groove extending downward from the top end of the first cutting edge portion along the center line; The second cutting tool includes a second insertion guide portion and a second cutting edge portion. The second cutting tool is provided with a third opening extending upward from the bottom end of the second insertion guide portion along the center line of the second cutting tool and a fourth opening orthogonal to the third opening, and the top end of the third opening is not lower than the top end of the fourth opening. The second cutting tool is provided with a second receiving groove extending upward from the top end of the third opening along the center line of the second cutting tool. Assembly fastening screws and nuts, The assembled cutting tool is configured such that, when assembled, the first cutting tool is guided into the base via a first insertion guide and the first cutting edge is seated in two grooves formed on opposite edges; the second cutting tool is guided into the base via a second insertion guide and the second cutting edge is seated in two more grooves formed on opposite edges; the second cutting tool is seated on the first cutting tool via a first receiving groove, a third opening, and a second receiving groove; the fastening nut passes through the opening and is seated in the second opening and the fourth opening; and the fastening screw passes through the screw hole at the bottom of the base through the channel formed by the first opening and the third opening and is fastened to the fastening nut.

2. The assembled cutting tool according to claim 1, characterized in that, The first base portion has a cube shape.

3. The assembled cutting tool according to claim 2, characterized in that, The first and second cutting edges of the first cutting tool are both straight, and the height of a portion of the first and second cutting edges is higher than the height of the second cutting edge.

4. The assembled cutting tool according to claim 3, characterized in that, The first and second cutting edges of the first cutting tool are respectively chamfered at their ends.

5. The assembled cutting tool according to claim 1, characterized in that, The fastening nut is constructed such that one end of a flat cube is machined into two orthogonal bevels.

6. The assembled cutting tool according to claim 1, characterized in that, The assembled cutting tool is made of steel.

7. The assembled cutting tool according to any one of claims 1-6, characterized in that, The first cutting edge of the first tool is provided with mounting holes on both sides for mounting to the wood chipper body.

8. A wood splitter, comprising a main body, the main body including a base, a support frame vertically coupled to the base, and a feeding part coupled to the support frame, characterized in that, The wood chipper also includes the assembled blade as described in claim 7, which is mounted to the support frame.

9. The wood splitter according to claim 8, characterized in that, The support frame is equipped with a sliding groove and multiple mounting holes at different heights.

10. The wood-crushing tool according to claim 8, characterized in that, The feeding section is a disc with symmetrical openings.

Images