Lawn mower with cutter head convenient to replace

Abstract

The utility model discloses a mowing machine with a cutter head convenient to replace. The mowing machine comprises a pushing frame, a shifting device, a mowing machine body, a cutter bar and a blade. Through the arrangement of the telescopic rod, the stabilizing plate, the replacing mechanism and the reinforcing assembly, when an operator needs to replace the blade, the operator starts the telescopic rod to drive the stabilizing plate to move downwards, then the mower body is lifted through downward force of the telescopic rod, and therefore the operator can get close to the blade conveniently; according to the equipment, the blades are arranged on the machine frame, then the blades are replaced by an operator through the replacement mechanism, and after replacement, the blades are reinforced by the reinforcing assembly, so that the stability of the blades after installation is ensured, and the problems that the blades need to be replaced due to different degrees of abrasion of the cutters are solved; and as the blade is located at the bottom of the equipment, the equipment needs to be toppled over during replacement, and the operation is too troublesome.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn mowers, in particular to a lawn mower with a convenient replacement of a cutter head. Background Art

[0002] Garden lawns are formed into a neat and beautiful green space by planting, managing and trimming lawn plants. Garden lawns have the advantages of providing beautiful visual effects, increasing air humidity, reducing noise and preventing dust. When trimming garden lawns, they are usually trimmed by mechanical mowers. By trimming the lawn, the garden lawn can be kept neat, uniform and beautiful, and the growth and renewal of the lawn can be promoted.

[0003] According to the announcement number: CN220712097U, a garden lawn mowing device is disclosed, including a mounting seat, a plurality of moving wheels are arranged at the bottom of the mounting seat, a handrail is arranged at one side of the upper end of the mounting seat, a protective cover is arranged at the upper end of the mounting seat, and one side of the mounting seat located in the protective cover is rotatably connected to two positioning shafts, the bottom ends of the two positioning shafts both penetrate the mounting seat, and a plurality of material-dispensing plates are arranged, and the mounting seat located on one side of the two positioning shafts penetrates a mounting hole. The utility model has a reasonable structure, and through the two positioning shafts and positioning wheels arranged on one side of the mounting seat, in conjunction with a plurality of material-dispensing plates, before mowing the garden lawn, stones or hard foreign objects on the garden lawn can be effectively pushed to the two sides of the mowing device to prevent them from hitting the cutting knife on the mowing device, which not only protects the cutting knife on the mowing device, but also ensures the safety of the mowing device in mowing the garden lawn, making the mowing device more practical in mowing the garden lawn.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that when the above equipment is used, although it can solve the problem that there will be a large number of stones or hard foreign objects on the garden lawn during the mowing process, which will cause the mowing device to cause multiple high-speed rotating cutting knives to collide with it when mowing the garden lawn, it will not only damage the cutting knives and cause certain economic losses, but also easily cause stones or hard foreign objects to be bounced off by the high-speed rotating cutting knives, causing certain safety hazards.

[0005] However, in actual use, since multiple cutting knives are used for cutting, after a long period of cutting, each cutting knives will show different degrees of wear and tear, and then need to be replaced. Since the multiple cutting knives of the above-mentioned equipment adopt an integrated design, it is impossible to replace the blades with less wear, which increases the replacement cost. Moreover, the blades are located at the bottom of the equipment, and the equipment needs to be tipped over when replacing, which is too troublesome. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a lawn mower with easy replacement of the blade head, which has the advantage of easy replacement and solves the problem that in actual use, due to the use of multiple cutting knives for cutting, after a long period of cutting, each cutting knife will show different degrees of wear and tear, and then need to be replaced. Since the multiple cutting knives of the above-mentioned equipment adopt an integrated design, it is impossible to replace the blades with less wear, which increases the replacement cost, and the blades are located at the bottom of the equipment, and the equipment needs to be tipped over when replacing, which is too troublesome.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lawn mower that is easy to replace a cutter head, comprising a pushing frame, a toggle device, a lawn mower body, a cutter rod and a blade, the toggle device being movably connected to the right side of the bottom of the lawn mower body, the cutter rod being movably connected to the left side of the bottom of the lawn mower body, the pushing frame being fixedly connected to the left side of the top of the lawn mower body, the bottom of the lawn mower body being fixedly connected to a telescopic rod, four of the telescopic rods being provided and distributed at the four corners of the bottom of the lawn mower body, the output end of the telescopic rod being fixedly connected to a stabilizing plate, the bottom of the cutter rod being provided with a replacement mechanism, and the interior of the cutter rod being provided with a reinforcement component.

[0008] As a preferred embodiment of the utility model, the replacement mechanism includes a replacement groove, which is opened at the bottom of the knife rod, and there are five replacement grooves which are equidistantly distributed in a ring shape. A replacement block is fixedly connected to the inside of the replacement groove, and the blade is fixedly connected to the outside of the replacement block. The blade is fixedly connected to the knife rod through the replacement groove and the replacement block, and the inner side of the replacement block is fixedly connected to a limiting component.

[0009] As a preferred embodiment of the present invention, the limit assembly includes a limit block, the limit block is fixedly connected to the inside of the replacement block, and the inner wall of the replacement groove is provided with a limit groove used in conjunction with the limit block.

[0010] As a preferred embodiment of the utility model, the reinforcement component includes a threaded hole, the threaded hole is opened at the bottom of the knife rod, the internal thread of the threaded hole is connected to a screw rod, the bottom of the screw rod is fixedly connected to a reinforcement block, and the diameter of the reinforcement block is consistent with the diameter of the knife rod.

[0011] As a preferred embodiment of the utility model, an anti-sliding block is fixedly connected to the surface of the reinforcement block, and a plurality of anti-sliding blocks are provided and are distributed in a circular shape with equal distances.

[0012] As a preferred embodiment of the utility model, the top of the stabilizing plate is fixedly connected with a ground spike, and a plurality of the ground spikes are provided.

[0013] As a preferred embodiment of the present invention, a control button is fixedly connected to the top of the pushing frame, and the control button is electrically connected to the telescopic rod through a wire.

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

[0015] 1. The utility model provides a telescopic rod, a stabilizing plate, a replacement mechanism and a reinforcement component. When the operator needs to replace the blade, the operator starts the telescopic rod to drive the stabilizing plate to move downward, and then the downward force of the telescopic rod raises the lawn mower body, so that the operator is close to the blade, and then the operator replaces the blade through the replacement mechanism. After replacement, the reinforcement component reinforces the blade to ensure the stability of the blade after installation. This solves the problem that in actual use, due to the use of multiple cutting knives for cutting, each cutting knife will show different degrees of wear after a long period of cutting, and then it needs to be replaced. Since the multiple cutting knives of the above-mentioned equipment adopt an integrated design, it is impossible to replace the blade with a smaller degree of wear, which increases the replacement cost. In addition, the blade is located at the bottom of the equipment, and the equipment needs to be tipped over when replaced, which is too troublesome. The effect of easy replacement is achieved.

[0016] 2. The utility model provides a replacement mechanism. When the operator needs to replace the blade, the operator removes the reinforcement assembly, pulls the blade downward, and then drives the replacement block out of the replacement slot. The operator picks up the new blade and drives the replacement block to insert it into the replacement slot. The reinforcement assembly presses the replacement block tightly, so that the operator can replace the blade conveniently.

[0017] 3. The utility model sets a limit assembly so that the limit block and the replacement block are fixedly installed, so that the replacement block forms a T shape, so that the replacement block can hook the replacement block and the limit groove through the limit block, thereby preventing the replacement block and the blade from being thrown out when the knife rod rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0020] Figure 3 This is an explosion diagram of the utility model;

[0021] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. push frame; 2. toggle device; 3. lawn mower body; 4. knife bar; 5. blade; 6. telescopic rod; 7. stabilizing plate; 8. replacement mechanism; 81. replacement slot; 82. replacement block; 83. limit assembly; 831. limit block; 832. limit slot; 9. reinforcement assembly; 91. threaded hole; 92. screw; 93. reinforcement block; 10. anti-sliding block; 11. ground spikes; 12. control button. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 4 As shown, the utility model provides a lawn mower that is easy to replace a cutter head, including a pushing frame 1, a toggle device 2, a lawn mower body 3, a cutter rod 4 and a blade 5. The toggle device 2 is movably connected to the right side of the bottom of the lawn mower body 3, the cutter rod 4 is movably connected to the left side of the bottom of the lawn mower body 3, the pushing frame 1 is fixedly connected to the left side of the top of the lawn mower body 3, the bottom of the lawn mower body 3 is fixedly connected with a telescopic rod 6, four telescopic rods 6 are provided and distributed at the four corners of the bottom of the lawn mower body 3, the output end of the telescopic rod 6 is fixedly connected with a stabilizing plate 7, the bottom of the cutter rod 4 is provided with a replacement mechanism 8, and the interior of the cutter rod 4 is provided with a reinforcement component 9.

[0025] refer to Figure 4 The replacement mechanism 8 includes a replacement groove 81, which is opened at the bottom of the knife rod 4. There are five replacement grooves 81 and they are distributed in a ring shape with equal distances. A replacement block 82 is fixed inside the replacement groove 81. The blade 5 is fixedly connected to the outside of the replacement block 82. The blade 5 is fixed to the knife rod 4 through the replacement groove 81 and the replacement block 82. The inner side of the replacement block 82 is fixedly connected with a limiting component 83.

[0026] As a technical optimization scheme of the utility model, by setting a replacement mechanism 8, when the operator needs to replace the blade 5, the operator removes the reinforcement component 9, and then the operator pulls the blade 5 downward, and then the blade 5 drives the replacement block 82 to disengage from the replacement slot 81, so that the operator picks up the new blade 5 and drives the replacement block 82 to insert it into the replacement slot 81, and then the reinforcement component 9 presses the replacement block 82 tightly, so that the operator can easily replace the blade 5.

[0027] refer to Figure 4The limiting assembly 83 includes a limiting block 831 , which is fixedly connected to the interior of the replacement block 82 , and an inner wall of the replacement slot 81 is provided with a limiting slot 832 used in conjunction with the limiting block 831 .

[0028] As a technical optimization scheme of the utility model, by setting a limit assembly 83, the limit block 831 and the replacement block 82 are fixedly installed, so that the replacement block 82 forms a T shape, so that the replacement block 82 can hook the replacement block 82 and the limit groove 832 through the limit block 831, thereby preventing the replacement block 82 and the blade 5 from being thrown out when the knife rod 4 rotates.

[0029] refer to Figure 4 The reinforcement component 9 includes a threaded hole 91, which is opened at the bottom of the arbor 4. The internal thread of the threaded hole 91 is connected to a screw rod 92. The bottom of the screw rod 92 is fixedly connected to a reinforcement block 93, and the diameter of the reinforcement block 93 is consistent with the diameter of the arbor 4.

[0030] As a technical optimization solution of the utility model, by setting a reinforcement component 9, when the blade 5 is installed through the replacement mechanism 8, the operator twists the reinforcement block 93 to drive the screw 92 to screw into the threaded hole 91, and then the reinforcement block 93 is pressed against the replacement mechanism 8 to prevent the blade 5 from falling off.

[0031] refer to Figure 4 The surface of the reinforcement block 93 is fixedly connected with an anti-sliding block 10, and a plurality of anti-sliding blocks 10 are arranged and distributed in a circular shape with equal distances.

[0032] As a technical optimization solution of the utility model, an anti-slip block 10 is provided so that the anti-slip block 10 and the reinforcement block 93 are fixedly installed. When the operator twists the reinforcement block 93, the anti-slip block 10 increases the friction between the operator's hand and the reinforcement block 93, thereby preventing the operator from slipping out of the hand when twisting the reinforcement block 93.

[0033] refer to Figure 2 The top of the stabilizing plate 7 is fixedly connected with a ground spike 11, and a plurality of ground spikes 11 are provided.

[0034] As a technical optimization solution of the utility model, by setting the ground spikes 11, the ground spikes 11 are fixedly installed with the stabilizing plate 7. When the operator raises the lawn mower body 3 on the grass to replace the blade 5, the ground spikes 11 can penetrate into the grass, thereby improving the stability of the raised lawn mower body 3.

[0035] refer to Figure 1 A control button 12 is fixedly connected to the top of the push frame 1, and the control button 12 is electrically connected to the telescopic rod 6 through a wire.

[0036] As a technical optimization solution of the utility model, by setting a control button 12, the control button 12 is electrically connected to the telescopic rod 6 through a wire, so that the operator can control the lifting and lowering of the telescopic rod 6 through the control button 12, thereby improving the convenience of the operator in using the telescopic rod 6.

[0037] The working principle and use process of the utility model are as follows: when the operator needs to replace the blade 5, the operator presses the control button 12, and then the control button 12 starts the telescopic rod 6 through the wire, and then the output end of the telescopic rod 6 drives the stabilizing plate 7 to move downward. When the stabilizing plate 7 moves to the ground, the lawn mower body 3 will rise due to the downward force of the output end of the telescopic rod 6, so that it is convenient for the operator to replace the blade 5 at the bottom of the lawn mower body 3, and then the operator reversely rotates the reinforcement block 93 to drive the screw 92 to disengage the thread. The operator then pulls the blade 5 that needs to be replaced, so that the limit block 831 and the replacement block 82 are disengaged from the limit slot 832 and the replacement slot 81, and then the operator picks up the new blade 5 to drive the replacement block 82 to be inserted and the limit block 831 to be inserted into the replacement slot 81 and the limit slot 832, so that the replacement block 82 can hook the replacement block 82 and the limit slot 832 through the limit block 831, and then the operator twists the reinforcement block 93 to drive the screw 92 to be screwed into the threaded hole 91, and then the reinforcement block 93 is pressed against the replacement mechanism 8 to complete the replacement.

[0038] To sum up: this lawn mower which is easy to replace the blade head is provided with a telescopic rod 6, a stabilizing plate 7, a replacement mechanism 8 and a reinforcement component 9. When the operator needs to replace the blade 5, the operator starts the telescopic rod 6 to drive the stabilizing plate 7 to move downward, and then the downward force of the telescopic rod 6 raises the lawn mower body 3, so that the operator is close to the blade 5, and then the operator replaces the blade 5 through the replacement mechanism 8. After replacement, the reinforcement component 9 reinforces the blade 5 to ensure the stability of the blade 5 after installation, and solves the problem that in actual use, due to the use of multiple cutting knives for cutting, after a long period of cutting, each cutting knife will have different degrees of wear and tear, and then need to be replaced. Since the multiple cutting knives of the above-mentioned equipment adopt an integrated design, it is impossible to replace the blade with a lesser degree of wear, which increases the replacement cost. In addition, the blade is located at the bottom of the equipment, and the equipment needs to be tipped over when replaced, which is too troublesome.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although the 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 lawn mower with a convenient replacement of a cutter head, comprising a push frame (1), a toggle device (2), a lawn mower body (3), a cutter bar (4) and a blade (5), characterized in that: The toggle device (2) is movably connected to the right side of the bottom of the lawn mower body (3); the knife bar (4) is movably connected to the left side of the bottom of the lawn mower body (3); the push frame (1) is fixedly connected to the left side of the top of the lawn mower body (3); the bottom of the lawn mower body (3) is fixedly connected with a telescopic rod (6); four telescopic rods (6) are provided and distributed at the four corners of the bottom of the lawn mower body (3); the output end of the telescopic rod (6) is fixedly connected with a stabilizing plate (7); a replacement mechanism (8) is provided at the bottom of the knife bar (4); and a reinforcement component (9) is provided inside the knife bar (4).

2. A lawn mower with easy-to-replace blade according to claim 1, characterized in that: The replacement mechanism (8) comprises a replacement groove (81), the replacement groove (81) being arranged at the bottom of the knife rod (4), the replacement groove (81) being provided with five replacement grooves (81) and being distributed in an annular shape with equal distances, a replacement block (82) being fixedly connected inside the replacement groove (81), the blade (5) being fixedly connected to the outside of the replacement block (82), the blade (5) being fixedly connected to the knife rod (4) through the replacement groove (81) and the replacement block (82), and a limiting assembly (83) being fixedly connected inside the replacement block (82).

3. A lawn mower with easy-to-replace blade according to claim 2, characterized in that: The limiting assembly (83) comprises a limiting block (831), wherein the limiting block (831) is fixedly connected to the interior of the replacement block (82), and the inner wall of the replacement groove (81) is provided with a limiting groove (832) used in conjunction with the limiting block (831).

4. A lawn mower with easy-to-replace blade according to claim 1, characterized in that: The reinforcement component (9) comprises a threaded hole (91), wherein the threaded hole (91) is provided at the bottom of the knife rod (4), the internal thread of the threaded hole (91) is connected to a screw rod (92), the bottom of the screw rod (92) is fixedly connected to a reinforcement block (93), and the diameter of the reinforcement block (93) is consistent with the diameter of the knife rod (4).

5. A lawn mower with easy-to-replace blade according to claim 4, characterized in that: The surface of the reinforcement block (93) is fixedly connected with an anti-sliding block (10), and a plurality of anti-sliding blocks (10) are provided and are distributed in a ring-shaped manner with equal distances.

6. The lawn mower with easy-to-replace blade according to claim 1, characterized in that: The top of the stabilizing plate (7) is fixedly connected with a ground spike (11), and a plurality of the ground spikes (11) are provided.

7. The lawn mower with easy-to-replace blade according to claim 1, characterized in that: A control button (12) is fixedly connected to the top of the pushing frame (1), and the control button (12) is electrically connected to the telescopic rod (6) via a wire.

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