Lawn mower mowing head compatible with positive and negative rotation of gasoline lithium battery

Abstract

The utility model discloses a mowing machine mowing head compatible with positive and negative rotation of gasoline lithium battery simultaneously, which comprises a base, a winding seat and a sealing cover, the base is internally provided with an annular seat, the annular side wall of the annular seat is provided with two limiting seats and a positioning assembly, and the two limiting seats are both provided with rectangular clamping grooves which are communicated left and right. According to the grass trimmer, the grass trimming rope is wound into the two winding grooves in the winding seat and penetrates through the winding opening, the grass trimming rope is effectively limited and prevented from being wound during rotation, the base, the winding seat and the sealing cover are in butt joint, the arc-shaped inserting blocks are inserted between the adjacent positioning protrusions and the limiting seat, and therefore the grass trimming rope can be fixed to the winding seat. The positioning clamping block is inserted into the rectangular clamping groove, the grass mowing rope penetrates through the oval positioning hole, the limiting abutting block on the sealing cover is inserted into the inserting opening of the oval positioning hole, the grass mowing rope is effectively positioned, the grass mowing rope is prevented from shaking greatly during rotation, and the grass mowing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower trimmer head technology, and in particular to a lawnmower trimmer head that is compatible with both gasoline and lithium battery forward and reverse rotation. Background Technology

[0002] The lawnmower trimmer head is the core working component of the lawnmower. Its main function is to convert power into the ability to cut grass. The power is transmitted to the trimmer head through the transmission system, which drives the trimmer rope or blade to rotate and use the rotational force to cut the grass. Common trimmer heads are divided into blade trimmer heads and rope trimmer heads.

[0003] Existing rope-type mower heads that are compatible with both gasoline and lithium batteries for forward and reverse rotation suffer from several drawbacks in practical use. The mower rope lacks a limiting structure, which can easily cause the mower head to become tangled. Furthermore, the lack of a positioning structure in the mower rope can cause significant shaking during rotation, resulting in poor mowing performance. Therefore, a new mower head that is compatible with both gasoline and lithium batteries for forward and reverse rotation is proposed. Utility Model Content

[0004] To address the shortcomings and defects in existing technologies, this utility model proposes a lawnmower trimmer head that is compatible with both gasoline and lithium batteries for forward and reverse rotation. This addresses the technical problems in existing rope-type lawnmower heads that are compatible with both gasoline and lithium batteries for forward and reverse rotation, where the trimmer rope lacks a limiting structure, making it prone to tangling, and the trimmer rope lacks a positioning structure, causing significant shaking during rotation and resulting in poor trimming performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lawnmower head compatible with both gasoline and lithium batteries for forward and reverse rotation includes a base, a winding seat, and a sealing cover. The base has an annular seat, and the annular sidewall of the annular seat has two limiting seats and a positioning component. Each of the two limiting seats has a rectangular slot that is connected from left to right. The winding seat has two winding slots, and the two winding slots are connected by a common winding opening. The sidewall of the winding seat facing the base has a circular groove. The left sidewall of the sealing cover has four arc-shaped inserts and two positioning blocks, all of which engage with the limiting seats. An adjustment knob is provided through the end of the sealing cover facing the circular groove.

[0007] Preferably, the positioning component includes two positioning protrusions disposed on the annular sidewall of the annular seat. Each of the two positioning protrusions has an arc-shaped groove on its right sidewall. A positioning slider is slidably engaged in each of the two arc-shaped grooves. Each of the two positioning sliders has an elliptical positioning hole. Each of the two elliptical positioning holes has an insertion port on its inner wall away from the annular seat.

[0008] Preferably, the two positioning protrusions and the two limiting seats are arranged in a cross shape, the four arc-shaped inserts are respectively inserted between adjacent positioning protrusions and limiting seats, the two positioning blocks are respectively inserted into the two rectangular slots, and the sealing cover is provided with limiting blocks on the side wall opposite to the two positioning protrusions, and the two limiting blocks are respectively inserted into the two sockets.

[0009] Preferably, a cylindrical protrusion is provided on the bottom of the center position of the base, and a threaded joint is fixedly provided through the cylindrical protrusion. A return spring is fixedly connected to the inner wall of the circular groove, and the return spring is sleeved on the threaded joint.

[0010] Preferably, the winding seat has an annular protrusion on the right side wall opposite to the sealing cover, and two rectangular protrusions are symmetrically distributed on the annular side wall of the annular protrusion. The adjusting knob has two rectangular notches on the side wall opposite to the two rectangular protrusions. The adjusting knob is fitted onto the annular protrusion, and the two rectangular protrusions are respectively inserted into the two rectangular notches.

[0011] Preferably, the winding seat has several arc-shaped limiting protrusions on its right side wall away from the center, and the sealing cover has an annular limiting groove on its inner wall opposite to the winding seat, with the arc-shaped limiting protrusions inserted into the annular limiting groove.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By winding the straw rope into the two winding slots on the winding seat and passing the straw rope through the winding opening, the straw rope is effectively limited and prevented from tangling when rotating.

[0014] 2. By connecting the base, winding seat, and sealing cover, the arc-shaped insert is inserted between the adjacent positioning protrusion and the limiting seat, the positioning block is inserted into the rectangular slot, the grass trimming rope is passed through the elliptical positioning hole, and the limiting block on the sealing cover is inserted into the socket of the elliptical positioning hole, effectively positioning the grass trimming rope, preventing the grass trimming rope from shaking significantly when rotating, and improving the grass trimming effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a three-dimensional disassembled structure of a lawnmower head that is simultaneously compatible with the forward and reverse rotation of a gasoline-powered lithium battery, as proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the base of a lawnmower head that is compatible with both gasoline and lithium battery forward and reverse rotation, as proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the winding base of a lawnmower head that is compatible with both forward and reverse rotation of gasoline and lithium batteries, as proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the sealing cover and adjustment knob of a lawnmower head that is compatible with both gasoline and lithium batteries for forward and reverse rotation, as proposed in this utility model.

[0019] In the diagram: 1. Base, 2. Winding seat, 3. Sealing cover, 4. Annular seat, 5. Limiting seat, 6. Rectangular slot, 7. Winding groove, 8. Winding opening, 9. Arc-shaped insert, 10. Positioning block, 11. Adjustment knob, 12. Positioning protrusion, 13. Arc-shaped slot, 14. Positioning slider, 15. Elliptical positioning hole, 16. Insert, 17. Limiting block, 18. Columnar protrusion, 19. Threaded connector, 20. Annular protrusion, 21. Rectangular protrusion, 22. Rectangular notch, 23. Arc-shaped limiting protrusion, 24. Annular limiting groove. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A lawnmower head compatible with both gasoline and lithium batteries for forward and reverse rotation includes a base 1, a winding seat 2, and a sealing cover 3. The base 1 contains an annular seat 4. Two limiting seats 5 and a positioning component are located on the annular sidewall of the annular seat 4. The left sidewall of the sealing cover 3 has four arc-shaped inserts 9 and two positioning blocks 10, all of which engage with the limiting seats 5. The positioning component includes two positioning protrusions 12 on the annular sidewall of the annular seat 4. Each of the two positioning protrusions 12 has an arc-shaped groove 13 on its right sidewall. A positioning slider 14 is slidably engaged within each of the arc-shaped grooves 13. The structure of the positioning protrusions 12 and the positioning slider 14 is described in the attached instruction manual. Figure 1 Or attached Figure 2Both positioning sliders 14 are provided with elliptical positioning holes 15. The inner walls of the two elliptical positioning holes 15 away from the annular seat 4 are provided with insertion slots 16. The two positioning protrusions 12 and the two limiting seats 5 are arranged in a cross shape. Four arc-shaped inserts 9 are respectively inserted between adjacent positioning protrusions 12 and limiting seats 5. Two positioning clips 10 are respectively inserted into two rectangular clip slots 6. The sealing cover 3 is provided with limiting blocks 17 on the side wall opposite to the two positioning protrusions 12. The two limiting blocks 17 are respectively inserted into the two insertion slots 16. The grass trimming rope is passed through the elliptical positioning holes 15 on the two positioning sliders 14, and the limiting blocks 17 on the sealing cover 3 are inserted into the insertion slots 16 of the elliptical positioning holes 15, which effectively fixes the sealing cover 3 on the base 1 and positions the grass trimming rope in the elliptical positioning holes 15, preventing the grass trimming rope from shaking significantly when rotating and improving the grass trimming effect.

[0023] The winding seat 2 has a circular groove on its side wall opposite the base 1. A cylindrical protrusion 18 is located at the bottom center of the base 1, and a threaded connector 19 is fixedly threaded through the cylindrical protrusion 18. A return spring is fixedly connected to the inner wall of the circular groove, and the return spring is fitted with the threaded connector 19. When the base 1 is aligned with the sealing cover 3, four arc-shaped inserts 9 are respectively inserted between adjacent positioning protrusions 12 and the limiting seat 5, and two positioning clips 10 are respectively inserted into two rectangular clip slots 6. Simultaneously, the winding seat 2, in conjunction with the threaded connector 19, compresses the return spring (not shown in the figure). During disassembly, simply press the two positioning blocks 10, and the compressed return spring (not shown in the figure) will elastically return to its original position, thereby opening the sealing cover 3. Both limit seats 5 are provided with rectangular slots 6 that are connected from left to right. The winding seat 2 is provided with two winding grooves 7, and the two winding grooves 7 are connected by the same winding opening 8. The grass trimming rope is wound into the two winding grooves 7 on the winding seat 2 and passed through the winding opening 8 between the two winding grooves 7, which effectively limits the grass trimming rope between the two winding grooves 7 and prevents the grass trimming rope inside from getting tangled when the grass trimming head rotates.

[0024] An adjusting knob 11 is inserted through one end of the sealing cover 3 opposite the circular groove. An annular protrusion 20 is provided on the right side wall of the winding seat 2 opposite the sealing cover 3. Two symmetrically distributed rectangular protrusions 21 are provided on the annular side wall of the annular protrusion 20. Two rectangular notches 22 are provided on the side wall of the adjusting knob 11 opposite the two rectangular protrusions 21. The adjusting knob 11 is fitted onto the annular protrusion 20, and the two rectangular protrusions 21 are respectively inserted into the two rectangular notches 22. The adjusting knob 11 on the sealing cover 3 is fitted onto the arc-shaped limiting protrusion 23, thus... The rectangular protrusion 21 on the arc-shaped limiting protrusion 23 is inserted into the rectangular notch 22, effectively positioning the adjustment knob 11 and making it convenient to turn the adjustment knob 11 to adjust the length of the straw rope on the winding seat 2. Several arc-shaped limiting protrusions 23 are provided on the right side wall of the winding seat 2 away from the center. The sealing cover 3 is provided with annular limiting grooves 24 on the inner wall of the winding seat 2. Several arc-shaped limiting protrusions 23 are inserted into the annular limiting grooves 24. When several arc-shaped limiting protrusions 23 are inserted into the annular limiting grooves 24, they can provide stable limiting for the sealing cover 3.

[0025] In use, the grass trimming rope is wound around the two winding grooves 7 on the winding base 2, and the grass trimming rope is passed through the winding opening 8 between the two winding grooves 7. This effectively limits the grass trimming rope between the two winding grooves 7, preventing the grass trimming rope from tangling inside when the trimmer head rotates. The base 1 is connected to the winding base 2, so that the threaded connector 19 is inserted into the circular groove (not shown in the figure), and the return spring (not shown in the figure) is sleeved on the threaded connector 19. The sealing cover 3 is connected to the base 1, so that the four arc-shaped inserts 9 are respectively inserted between the adjacent positioning protrusions 12 and the limiting seat 5, and the two positioning clips 10 are respectively inserted into the two limiting seats. The rectangular slot 6 on the base 5 is used to insert the grass trimming rope through the elliptical positioning holes 15 on the two positioning sliders 14. The limiting block 17 on the sealing cover 3 is inserted into the insertion port 16 of the elliptical positioning hole 15, effectively fixing the sealing cover 3 on the base 1 and positioning the grass trimming rope to prevent it from shaking significantly when rotating, thus improving the trimming effect. The adjusting knob 11 on the sealing cover 3 is sleeved on the arc-shaped limiting protrusion 23, and the rectangular protrusion 21 on the arc-shaped limiting protrusion 23 is inserted into the rectangular notch 22, effectively positioning the adjusting knob 11 and making it easy to turn the adjusting knob 11 to adjust the length of the grass trimming rope on the winding seat 2.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lawn mower cutting head compatible with gasoline and lithium battery simultaneously, comprising a base (1), a winding seat (2) and a sealing cover (3), characterized in that, The base (1) is provided with an annular seat (4). The annular sidewall of the annular seat (4) is provided with two limiting seats (5) and a positioning component. The two limiting seats (5) are provided with rectangular slots (6) that are connected to each other. The winding seat (2) is provided with two winding slots (7). The two winding slots (7) are connected by the same winding opening (8). The sidewall of the winding seat (2) facing the base (1) is provided with a circular groove. The left sidewall of the sealing cover (3) is provided with four arc-shaped inserts (9) and two positioning blocks (10). The four arc-shaped inserts (9) and two positioning blocks (10) are engaged with the limiting seats (5). The end of the sealing cover (3) facing the circular groove is provided with an adjustment knob (11).

2. A lawn mower cutting head capable of simultaneously compatible gasoline and lithium battery forward and reverse rotation according to claim 1, characterized in that, The positioning component includes two positioning protrusions (12) disposed on the annular sidewall of the annular seat (4). The right sidewall of each of the two positioning protrusions (12) is provided with an arc-shaped slot (13). A positioning slider (14) is slidably engaged in each of the two arc-shaped slots (13). An elliptical positioning hole (15) is provided on each of the two positioning sliders (14). An insertion port (16) is provided on the inner wall of each of the two elliptical positioning holes (15) away from the annular seat (4).

3. A grass cutting head for a grass trimmer simultaneously compatible with gasoline and lithium battery forward and reverse rotation according to claim 2, characterized in that, The two positioning protrusions (12) and the two limiting seats (5) are arranged in a cross shape. The four arc-shaped inserts (9) are respectively inserted between the adjacent positioning protrusions (12) and the limiting seats (5). The two positioning blocks (10) are respectively inserted into the two rectangular slots (6). The sealing cover (3) is provided with limiting blocks (17) on the side wall facing the two positioning protrusions (12). The two limiting blocks (17) are respectively inserted into the two sockets (16).

4. The lawn mower cutting head of claim 1, wherein, A cylindrical protrusion (18) is provided on the bottom of the center position of the base (1), and a threaded connector (19) is fixedly provided through the cylindrical protrusion (18). A reset spring is fixedly connected to the inner wall of the circular groove, and the reset spring is sleeved on the threaded connector (19).

5. A lawn mower cutting head according to claim 1, wherein, The winding seat (2) has an annular protrusion (20) on the right side wall opposite to the sealing cover (3). The annular protrusion (20) has two symmetrically distributed rectangular protrusions (21) on its annular side wall. The adjustment knob (11) has two rectangular notches (22) on its side wall opposite to the two rectangular protrusions (21). The adjustment knob (11) is fitted onto the annular protrusion (20), and the two rectangular protrusions (21) are respectively inserted into the two rectangular notches (22).

6. A grass cutting head for a grass trimmer simultaneously compatible with gasoline and lithium battery forward and reverse rotation according to claim 1, characterized in that, The winding seat (2) has several arc-shaped limiting protrusions (23) on the right side wall away from the center. The sealing cover (3) has an annular limiting groove (24) on the inner wall opposite to the winding seat (2). Several of the arc-shaped limiting protrusions (23) are inserted into the annular limiting groove (24).

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