push lawnmower

Abstract

This invention relates to the field of lawnmower technology, specifically a push-type lawnmower comprising: a blade mounting plate, mounting grooves on both sides of the blade mounting plate, a telescopic groove in the center of the bottom of the blade mounting plate, a first spring in the telescopic groove, a telescopic plate connected to the bottom of the first spring, multiple sets of connecting plates connected to both sides of the telescopic plate, and a fixing rod on the top of the outer side of the connecting plate; the beneficial effect is that when the blade of the push-type lawnmower proposed in this invention is damaged, the start is first stopped, then the vehicle body is tilted to the side, exposing the cutting groove at the bottom of the vehicle body. Then, by pulling the pull rod at the bottom of the corresponding damaged blade, the pull rod drives the limiting plate to hold against the bottom inner wall of the telescopic groove. Continuing to pull the pull rod, the pull rod pulls the telescopic plate through the limiting plate, causing the telescopic plate to descend in the telescopic groove. The telescopic plate descends synchronously through the connecting plates.

Description

Technical Field

[0001] This invention relates to the field of lawnmower technology, specifically a push lawnmower. Background Technology

[0002] A lawnmower, also known as a lawn mower, lawn trimmer, or lawn trimmer, is a mechanical tool used to trim lawns, vegetation, etc. Most push lawnmowers currently on the market use a rotating blade to cut grass.

[0003] However, if the blades of existing push lawnmowers are damaged, specific tools are required to disassemble and replace them. If the disassembly tools are not carried or available outdoors, the damaged blades cannot be used for mowing again, which seriously affects the mowing efficiency of the lawnmower. Summary of the Invention

[0004] The purpose of this invention is to provide a push-type lawn mower to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tool mounting plate, wherein mounting grooves are provided on both sides of the tool mounting plate, and a telescopic groove is provided in the middle of the bottom of the tool mounting plate, a first spring is provided in the telescopic groove, the bottom of the first spring is connected to a telescopic plate, multiple sets of connecting plates are connected to both sides of the telescopic plate, and a fixing rod is provided on the top of the outer side of the connecting plate; and a vehicle body, wherein a drive box is provided in the middle of the top of the vehicle body, a drive motor is provided in the drive box, a first rotating shaft is inserted into the bottom of the drive motor, and a first gear is connected to the bottom of the first rotating shaft.

[0006] Preferably, the vehicle body is provided with rollers around its bottom perimeter, and a push rod is provided on one side of the vehicle body. Pushing the push rod can cause the rollers to move the vehicle body.

[0007] Preferably, the vehicle body has an inlet at the bottom front end and a cutting groove in the middle, allowing grass to enter the cutting groove through the inlet for cutting and trimming.

[0008] Preferably, the bottom sides of the drive box are provided with second gears, which are located on both sides of the first gear at the bottom of the drive motor and are in close contact with the first gear. The drive motor can drive the first gear to mesh with the second gear by rotating, thereby driving the second gear to rotate.

[0009] Preferably, the bottom of the second gear is connected to the second shaft, the bottom of the second shaft is inserted into the cutting groove opened on the bottom of the vehicle body, and the bottom end of the second shaft is connected to the tool mounting plate. The second gear can drive the tool mounting plate to rotate through the second shaft.

[0010] Preferably, the blade mounting plate has mounting grooves on both sides, in which the blade is held, and the blade can cut and trim the grass by rotating the blade mounting plate.

[0011] Preferably, the top of the mounting groove and the cutter has multiple sets of insertion slots, and the fixing rod on the top of the connecting plate corresponds one-to-one with the insertion slots on the top of the mounting groove and the cutter. The first spring can pull the telescopic plate to retract through the contraction force, so that the fixing rod on the top of the connecting plate can be inserted into the insertion slots on the top of the mounting groove and the cutter, thus fixing the cutter in the mounting groove.

[0012] Preferably, the telescopic plate has a contraction groove in the middle of its bottom, and a second spring is provided in the contraction groove. The bottom of the second spring is connected to a limiting plate, and the bottom of the limiting plate is connected to a pull rod. The limiting plate can limit the pull rod and prevent the pull rod from falling out of the contraction groove.

[0013] Preferably, the bottom of the pull rod extends out of the shrinkage groove. Pulling the pull rod allows it to be held against the bottom inner wall of the shrinkage groove. Continuing to pull the pull rod allows it to pull the telescopic plate down through the limiting plate, causing the fixing rod at the top of the connecting plate to disengage from the mounting groove and the insertion groove opened at the top of the cutter, thus removing the fixation of the cutter.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The hand-push lawnmower proposed in this invention, when the blade is damaged, first stops the start, then tilts the vehicle to the side, exposing the cutting groove at the bottom of the vehicle. Next, by pulling the lever at the bottom of the damaged blade, the lever causes a limiting plate to press against the inner wall of the contraction groove. Continuing to pull the lever causes it to pull the telescopic plate through the limiting plate, causing the telescopic plate to descend within the telescopic groove. Simultaneously, the telescopic plate descends synchronously through the connecting plate, causing the fixing rod on the top of the connecting plate to disengage from the insertion slot on the top of the mounting groove and the blade, thus releasing the blade from its fixation. The damaged blade is then removed, and a new blade is inserted into the mounting groove. Releasing the lever causes the second spring to retract the lever into the contraction groove, while the first spring retracts the telescopic plate into the telescopic groove, causing the fixing rod on the top of the connecting plate to re-insert into the insertion slot on the top of the mounting groove and the blade, completing the replacement. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the tool mounting plate of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the tool mounting plate of the present invention;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the cutting tool of the present invention.

[0022] In the diagram: 1. Vehicle body; 2. Roller; 3. Push rod; 4. Drive box; 5. Inlet; 6. Drive motor; 7. First shaft; 8. First gear; 9. Second gear; 10. Second shaft; 11. Tool mounting plate; 12. Mounting slot; 13. Tool; 14. Cutting slot; 15. Telescopic slot; 16. First spring; 17. Telescopic plate; 18. Connecting plate; 19. Fixed rod; 20. Insertion slot; 21. Retraction slot; 22. Second spring; 23. Pull rod; 24. Limiting plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 6This invention provides a technical solution: a tool mounting plate 11, with mounting grooves 12 on both sides and a telescopic groove 15 in the center of the bottom of the tool mounting plate 11. A first spring 16 is installed in the telescopic groove 15, and the bottom of the first spring 16 is connected to a telescopic plate 17. Multiple sets of connecting plates 18 are connected to both sides of the telescopic plate 17, and a fixing rod 19 is installed on the top outer side of the connecting plate 18; and a vehicle body 1, with a drive box 4 in the center of the top of the vehicle body 1, a drive motor 6 installed in the drive box 4, a first rotating shaft 7 inserted into the bottom of the drive motor 6, and a first gear 8 connected to the bottom of the first rotating shaft 7; rollers 2 are installed around the bottom of the vehicle body 1, and a push rod 3 is installed on one side of the vehicle body 1. Pushing the push rod 3 enables the roller 2 to move the vehicle body 1. An inlet 5 is located at the front bottom of the vehicle body 1, and a cutting groove 14 is located in the middle of the vehicle body 1. Grass can enter the cutting groove 14 through the inlet 5 for cutting and trimming. Second gears 9 are located on both sides of the bottom of the drive box 4. The second gears 9 are located on both sides of the first gear 8 at the bottom of the drive motor 6 and are in close contact with the first gear 8. The drive motor 6 can rotate to drive the first gear 8 to mesh with the second gear 9, thus driving the second gear 9 to rotate. The bottom of the second gear 9 is connected to a second rotating shaft 10, the bottom of which is inserted into the cutting groove 14 at the bottom of the vehicle body 1. The bottom end of the second rotating shaft 10 is connected to a tool mounting plate 11. The second gear 9 can drive the blade mounting plate 11 to rotate via the second rotating shaft 10; mounting grooves 12 are provided on both sides of the blade mounting plate 11, and blades 13 are held in the mounting grooves 12. The blades 13 can cut and trim grass by rotating the blade mounting plate 11; multiple sets of insertion grooves 20 are provided on the top of the mounting grooves 12 and the blades 13. The fixing rods 19 on the top of the connecting plate 18 correspond one-to-one with the insertion grooves 20 on the top of the mounting grooves 12 and the blades 13. The first spring 16 can pull the telescopic plate 17 to retract by contraction force, so that the fixing rods 19 on the top of the connecting plate 18 are inserted into the insertion grooves 20 on the top of the mounting grooves 12 and the blades 13, thus fixing the blades 13 in the mounting grooves 12. The telescopic plate 17 has a contraction groove 21 at the bottom center, and a second spring 22 is installed in the contraction groove 21. The bottom of the second spring 22 is connected to a limiting plate 24, and the bottom of the limiting plate 24 is connected to a pull rod 23. The limiting plate 24 can limit the pull rod 23 to prevent it from falling out of the contraction groove 21. The bottom of the pull rod 23 extends out of the contraction groove 21. Pulling the pull rod 23 can make it press against the bottom inner wall of the contraction groove 21. Continuing to pull the pull rod 23 can make it pull the telescopic plate 17 down through the limiting plate 24, so that the fixing rod 19 at the top of the connecting plate 18 can be disengaged from the mounting groove 12 and the insertion groove 20 at the top of the cutter 13, thus removing the fixation of the cutter 13.

[0025] In actual use, when weeding, first start the drive motor 6, which drives the first shaft 7 inserted at the bottom to rotate. The drive gear 8 meshes with the second gears 9 on both sides of the first gear 8, causing the blade mounting plate 11 at the bottom of the second shaft 10 connected to the bottom of the second gear 9 to start rotating. Then, the push rod 3 pushes the vehicle body 1 to move. At this time, the grass enters the cutting groove 14 from the inlet 5. The blade mounting plate 11 drives the blades 13 inserted in the mounting grooves 12 on both sides of the blade mounting plate 11 to start cutting and trimming the grass. When the blade 13 is damaged, first stop the start, then tilt the vehicle body 1 to the side, exposing the cutting groove 14 at the bottom of the vehicle body 1. Then, pull the pull rod 23 at the bottom of the corresponding damaged blade 13, causing the pull rod 23 to drive the limit plate 24 to hold the bottom of the shrinkage groove 21. Continue pulling the lever 23 along the inner wall. The lever 23 pulls the telescopic plate 17 through the limiting plate 24, causing the telescopic plate 17 to descend in the telescopic groove 15. Simultaneously, the telescopic plate 17 descends through the connecting plate 18, causing the fixing rod 19 on the top outer side of the connecting plate 18 to disengage from the top of the mounting groove 12 and the insertion groove 20 on the cutter 13, thus releasing the fixation on the cutter 13. Then, remove the damaged cutter 13 and insert the new cutter 13 into the mounting groove 12. After that, release the lever 23. At this time, the second spring 22 contracts and retracts the lever 23 into the telescopic groove 21. At the same time, the first spring 16 contracts and retracts the telescopic plate 17 into the telescopic groove 15, causing the fixing rod 19 on the top outer side of the connecting plate 18 to re-insert into the insertion groove 20 on the top of the mounting groove 12 and the cutter 13, completing the replacement.

[0026] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A push-type lawnmower, characterized in that: include: A tool mounting plate (11) has mounting slots (12) on both sides and a telescopic groove (15) in the middle of the bottom of the tool mounting plate (11). A first spring (16) is installed in the telescopic groove (15). The bottom of the first spring (16) is connected to a telescopic plate (17). Multiple sets of connecting plates (18) are connected to both sides of the telescopic plate (17). A fixing rod (19) is installed on the top of the outer side of the connecting plate (18). The vehicle body (1) has a drive box (4) at the top center of the vehicle body (1), a drive motor (6) is installed in the drive box (4), a first rotating shaft (7) is inserted into the bottom of the drive motor (6), and a first gear (8) is connected to the bottom of the first rotating shaft (7). The mounting groove (12) and the top of the cutter (13) have multiple sets of insertion slots (20). The fixing rod (19) on the top of the connecting plate (18) corresponds one-to-one with the insertion slots (20) on the top of the mounting groove (12) and the cutter (13). The first spring (16) can pull the telescopic plate (17) to retract through the contraction force, so that the fixing rod (19) on the top of the connecting plate (18) is inserted into the insertion slots (20) on the top of the mounting groove (12) and the cutter (13), thus fixing the cutter (13) in the mounting groove (12). The bottom center of the telescopic plate (17) has a shrinkage groove (21), and a second spring (22) is provided in the shrinkage groove (21). The bottom is connected to a limiting plate (24), and the bottom of the limiting plate (24) is connected to a pull rod (23). The limiting plate (24) can limit the pull rod (23) to prevent the pull rod (23) from falling out of the shrinkage groove (21). The bottom of the pull rod (23) extends out of the shrinkage groove (21). Pulling the pull rod (23) can make the pull rod (23) press against the bottom inner wall of the shrinkage groove (21). Continuing to pull the pull rod (23) can make the pull rod (23) pull the telescopic plate (17) down through the limiting plate (24), so that the fixing rod (19) at the top of the connecting plate (18) is disengaged from the mounting groove (12) and the insertion groove (20) opened at the top of the cutter (13), thus canceling the fixation of the cutter (13).

2. The push-type lawnmower according to claim 1, characterized in that: The bottom of the vehicle body (1) is provided with rollers (2) around its perimeter, and a push rod (3) is provided on one side of the vehicle body (1). Pushing the push rod (3) can cause the rollers (2) to move the vehicle body (1).

3. The push-type lawnmower according to claim 2, characterized in that: The vehicle body (1) has an inlet (5) at the bottom front end and a cutting groove (14) in the middle of the vehicle body (1). The grass can enter the cutting groove (14) through the inlet (5) for cutting and trimming.

4. The push-type lawnmower according to claim 3, characterized in that: The drive box (4) has a second gear (9) on both sides of its bottom. The second gear (9) is located on both sides of the first gear (8) at the bottom of the drive motor (6) and is in close contact with the first gear (8). The drive motor (6) can rotate to drive the first gear (8) to mesh with the second gear (9) and drive the second gear (9) to rotate.

5. The push-type lawnmower according to claim 4, characterized in that: The bottom of the second gear (9) is connected to the second shaft (10), the bottom of the second shaft (10) is inserted into the cutting groove (14) opened at the bottom of the vehicle body (1), and the bottom end of the second shaft (10) is connected to the tool mounting plate (11). The second gear (9) can drive the tool mounting plate (11) to rotate through the second shaft (10).

6. The push-type lawnmower according to claim 5, characterized in that: The blade mounting plate (11) has mounting grooves (12) on both sides, and the blade (13) is held in the mounting grooves (12). The blade (13) can cut and trim the grass by rotating the blade mounting plate (11).

Images