Quick-release type grass cutting mechanism and grass mower with grass cutting mechanism

Abstract

The utility model particularly relates to a quick release type grass cutting mechanism and a grass mower with the grass cutting mechanism, the grass cutting mechanism comprises a swing arm assembly, a support connected with the swing arm assembly and a grass cutting assembly arranged below the support, the swing arm assembly comprises a first swing arm and a second swing arm, one end of the first swing arm is used for being connected with an external grass mower body, the other end of the first swing arm is connected with the second swing arm through at least one connecting rod, and first clamping structures are arranged between the two ends of the second swing arm and the corresponding side ends of the support respectively. The first clamping structure is used for enabling the second swing arm to be detachably connected with the support. Through the first clamping structure, the support and the grass cutting assembly arranged on the support can be rapidly disassembled and assembled from the machine body of the external mower, maintenance or repair of the grass cutting assembly is facilitated, and operation is easy, convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of lawnmower equipment, in particular to a quick-detachable lawnmower mechanism and a lawnmower with the lawnmower mechanism. Background Art

[0002] A lawnmower is a mechanical device used to mow lawns or short vegetation. It mainly includes a mowing mechanism, a driving mechanism, a walking mechanism, and a grass collecting box. The mowing mechanism is mostly set at the bottom of the lawnmower. The mowing mechanism operates intensively in different terrain environments and requires frequent maintenance. However, most existing mowing mechanisms are fixed in the machine body, or are locked to the machine body by screws and other parts. Disassembly and assembly are cumbersome and parts are easily lost during the disassembly and assembly process, which is inconvenient for maintenance of the mowing mechanism and affects work efficiency. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a quick-detachable grass cutting mechanism and a lawn mower having the grass cutting mechanism.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A quick-detachable lawn mower mechanism comprises a swing arm assembly, a bracket connected to the swing arm assembly, and a lawn mower assembly arranged below the bracket, wherein the swing arm assembly comprises a first swing arm and a second swing arm, one end of the first swing arm is used to be connected to an external lawn mower body, the other end of the first swing arm is connected to the second swing arm through at least one connecting rod, and first clamping structures are respectively arranged between the two ends of the second swing arm and the corresponding side ends of the bracket, and the first clamping structure is used to make the second swing arm detachably connected to the bracket.

[0006] Furthermore, the first clamping structure includes a first latch and a first spring buckle, and first positioning pin holes for inserting the first latch are provided at both ends of the second swing arm along its length direction, and the first latch is inserted into the first positioning pin hole from one side of the second swing arm and clamped with the first spring buckle.

[0007] Furthermore, the outer wall of the first latch is provided with a first annular groove for engaging with the first spring buckle.

[0008] Furthermore, the first spring buckle is inserted from the height direction of the second swing arm and is clamped with the first annular groove, and the first spring buckle is threadedly connected to the second swing arm.

[0009] Furthermore, both side ends of the bracket are longitudinally provided with plug blocks, and both ends of the second swing arm are correspondingly provided with slots for the plug blocks to penetrate, the plug blocks protrude upward into the slots, and the plug blocks are provided with through holes for the first pin to pass through.

[0010] Furthermore, the grass cutting assembly includes a reel and a bed knife, both ends of the reel are rotatably connected to the bracket, the bed knife includes a bed knife seat, a blade and a connecting flange, the upper end of the bed knife seat is movably connected to the bracket, the lower end of the bed knife seat is connected to the blade, the blade is used to cut grass tangentially with the reel, and the two sides of the bed knife seat at one end close to the blade are detachably connected to the bracket through connecting flanges.

[0011] Furthermore, the bracket is provided with a screw fixing seat, and the screw fixing seat is threadedly connected to the upper end of the bottom knife seat through a screw.

[0012] Furthermore, second clamping structures are respectively arranged between the two side portions of the bottom knife seat and the connecting flanges on the corresponding sides and the side ends of the bracket.

[0013] Furthermore, the second clamping structure includes a second pin and a second spring buckle, and both side portions of the bottom knife seat and the corresponding connecting flange are provided with second positioning pin holes for inserting the second pin, and the second pin is inserted into the second positioning pin hole from one side portion in the length direction of the bottom knife seat and clamped with the second spring buckle.

[0014] Furthermore, the outer wall of the second pin is provided with a second annular groove which cooperates and engages with the second spring buckle, one end of the second spring buckle is inserted into the connecting flange and engages vertically with the second annular groove, and the second spring buckle is threadedly connected to the connecting flange.

[0015] Furthermore, the grass cutting assembly also includes a guide roller arranged at the front end of the bracket and a pressure roller arranged at the rear end of the bracket, and both ends of the guide roller and the pressure roller are rotatably connected to the bracket respectively.

[0016] The utility model also provides a lawn mower, comprising the above-mentioned quick-detachable lawn mowing mechanism.

[0017] The beneficial effects of the utility model are as follows: the utility model discloses a quick-detachable grass cutting mechanism and a lawn mower having the grass cutting mechanism, wherein the bracket and the grass cutting assembly arranged on the bracket can be quickly disassembled and assembled with the body of the external lawn mower through the first clamping structure, which is convenient for the maintenance or repair of the grass cutting assembly, and the operation is simple and quick. Furthermore, the second clamping structure is provided to realize the quick disassembly and assembly between the bed knife seat and the bracket, which is convenient for the inspection and maintenance of the bed knife assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the quick-detachable grass cutting mechanism of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the quick-detachable grass cutting mechanism of the utility model from another angle;

[0020] Figure 3 It is a side view of the quick-detachable grass cutting mechanism of the utility model;

[0021] Figure 4 yes Figure 3 Section view at section AA.

[0022] The accompanying drawings are marked as follows: 1. bracket; 2. first swing arm; 201. connecting rod; 3. second swing arm; 4. first latch; 401. first ring groove; 5. first spring buckle; 6. plug block; 7. hob; 8. bottom knife; 801. bottom knife seat; 802. blade; 803. connecting flange; 9. screw fixing seat; 10. screw; 11. guide roller; 12. pressure roller; 13. second latch; 14. second spring buckle. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of those skilled in the art, the following embodiments and attached Figure 1-4 To further illustrate the present invention, the contents mentioned in the implementation modes are not intended to limit the present invention.

[0024] Example 1

[0025] like Figure 1-4 As shown, this embodiment provides a quick-detachable lawn mowing mechanism, including a swing arm assembly, a bracket 1 connected to the swing arm assembly, and a lawn mowing assembly arranged below the bracket 1, the swing arm assembly includes a first swing arm 2 and a second swing arm 3, one end of the first swing arm 2 is used to be connected to an external lawn mower body, the other end of the first swing arm 2 is connected to the second swing arm 3 through at least one connecting rod 201, and a first clamping structure is respectively arranged between the two end portions of the second swing arm 3 and the corresponding side ends of the bracket 1, and the first clamping structure is used to make the second swing arm 3 detachably connected to the bracket 1.

[0026] In this embodiment, the grass cutting mechanism is provided with a first clamping structure between the two ends of the second swing arm 3 and the bracket 1. Through the first clamping structure, the bracket 1 and the grass cutting component arranged on the bracket 1 can be quickly disassembled and assembled with the body of the external lawn mower, which is convenient for the maintenance or repair of the grass cutting component and the operation is simple and quick.

[0027] Furthermore, the first clamping structure includes a first latch 4 and a first spring buckle 5. The two ends of the second swing arm 3 are provided with first positioning pin holes for inserting the first latch 4 along its length direction. The first latch 4 is inserted into the first positioning pin hole from one side of the second swing arm 3 and is clamped with the first spring buckle 5.

[0028] Furthermore, the outer wall of the first latch pin 4 is provided with a first annular groove 401 for engaging with the first spring buckle 5 .

[0029] Furthermore, the first spring buckle 5 is inserted from the height direction of the second swing arm 3 and snapped with the first annular groove 401, and the first spring buckle 5 is threadedly connected with the second swing arm 3. Specifically, the two ends of the second swing arm 3 are provided with insertion holes for the first spring buckle 5 to be inserted along the height direction. It can be understood that one end of the first spring buckle 5 is inserted into the insertion hole and protrudes into the first positioning pin hole, and snapped with the first annular groove 401 on the outer wall of the first latch 4, thereby realizing the first snap-fit ​​structure to quickly and detachably connect the second swing arm 3 and the bracket 1.

[0030] Furthermore, both side ends of the bracket 1 are longitudinally provided with insert blocks 6, and both ends of the second swing arm 3 are correspondingly provided with slots for the insert blocks 6 to penetrate, the insert blocks 6 protrude upward into the slots, and the insert blocks 6 are provided with through holes for the first latch pin 4 to pass through, and the through holes are coaxially arranged with the first positioning pin hole.

[0031] In this embodiment, when disassembling the first clamping structure, slightly loosen the nut on the first spring buckle 5 to loosen the threaded fit between the first spring buckle 5 and the second swing arm 3, then pull the first spring buckle 5 to make its end disengage from the first annular groove 401, and then pull the first latch 4 out of the first positioning pin hole, so that the second swing arm 3 and the bracket 1 are disassembled and separated, which is simple and convenient to operate, and does not require the use of redundant parts. On the contrary, when installing the first clamping structure, pull the first spring buckle to make its end withdraw from the first positioning pin hole, then insert the first latch 4 into the first positioning pin hole, and then loosen the first spring buckle to make its end automatically reset and clamped into the first annular groove 401 on the outer periphery of the first latch 4, which is a complete operation of disassembly and assembly.

[0032] Furthermore, the grass cutting assembly includes a reel 7 and a bottom blade 8, both ends of the reel 7 are rotatably connected to the bracket 1, the bottom blade 8 includes a bottom blade seat 801, a blade 802 and a connecting flange 803, the upper end of the bottom blade seat 801 is movably connected to the bracket 1, the lower end of the bottom blade seat 801 is connected to the blade 802, the blade 802 is used to cut grass in tangential cooperation with the reel 7, and the two sides of the bottom blade seat 801 at one end close to the blade 802 are detachably connected to the bracket 1 through the connecting flange 803.

[0033] Furthermore, the support 1 is provided with a screw fixing seat 9, and the screw fixing seat 9 is threadedly connected to the upper end of the bottom blade seat 801 through a screw 10. The position of the bottom blade seat 801 relative to the support 1 and the reel 7 can be adjusted by setting the screw fixing seat 9 and the screw 10, so that the blade 802 connected to the bottom blade seat 801 can be at a better matching angle and relative distance with the reel 7 for mowing.

[0034] Furthermore, the mowing assembly further comprises a guide roller 11 disposed at the front end of the bracket 1 and a pressure roller 12 disposed at the rear end of the bracket 1, and both ends of the guide roller 11 and the pressure roller 12 are respectively rotatably connected to the bracket 1. The guide roller 11 is used to comb the uncut grass on the lawn to improve the mowing effect and efficiency of the mowing assembly; the pressure roller 12 is used to flatten the mowed lawn to improve the neatness and aesthetics of the lawn after mowing.

[0035] Example 2

[0036] On the basis of the first embodiment, this embodiment provides a quick-release grass cutting mechanism, wherein second clamping structures are respectively arranged between the two side portions of the bottom blade seat 801 and the connecting flanges 803 on the corresponding sides and the side ends of the bracket 1 .

[0037] Furthermore, the second clamping structure includes a second latch 13 and a second spring buckle 14, and both side portions of the bottom knife seat 801 and the corresponding connecting flange 803 are provided with second positioning pin holes for inserting the second latch 13, and the second latch 13 is inserted into the second positioning pin hole from one side portion in the length direction of the bottom knife seat 801, and is clamped with the second spring buckle 14.

[0038] Furthermore, the outer wall of the second latch 13 is provided with a second annular groove which cooperates with the second spring buckle 14 and is engaged with the second spring buckle 14 . One end of the second spring buckle 14 is inserted into the connecting flange 803 and is engaged with the second annular groove vertically. The second spring buckle 14 is threadedly connected to the connecting flange 803 .

[0039] In this embodiment, when disassembling the second clamping structure, the nut on the second spring buckle 14 is slightly loosened to loosen the threaded fit between the second spring buckle 14 and the second swing arm 3, and then the first spring buckle is pulled to make its end disengage from the second ring groove, and then the second pin 13 is pulled out. At this time, the connecting flange 803 is removed and the bottom knife seat 801 and the bracket 1 can be separated from each other, thereby realizing rapid disassembly and assembly between the bottom knife seat 801 and the bracket 1, facilitating the inspection and maintenance of the bottom knife 8 assembly, and the operation is simple and convenient.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A quick-release grass cutting mechanism, characterized in that: The invention comprises a swing arm assembly, a bracket (1) connected to the swing arm assembly, and a lawn mower assembly arranged below the bracket (1); the swing arm assembly comprises a first swing arm (2) and a second swing arm (3); one end of the first swing arm (2) is used to be connected to an external lawn mower body; the other end of the first swing arm (2) is connected to the second swing arm (3) via at least one connecting rod (201); a first clamping structure is provided between the two ends of the second swing arm (3) and the corresponding side ends of the bracket (1); the first clamping structure is used to detachably connect the second swing arm (3) to the bracket (1).

2. A quick-release grass cutting mechanism according to claim 1, characterized in that: The first clamping structure comprises a first latch (4) and a first spring buckle (5); first positioning pin holes for inserting the first latch (4) are provided at both ends of the second swing arm (3) along its length direction; the first latch (4) is inserted into the first positioning pin hole from one side of the second swing arm (3) and is clamped and matched with the first spring buckle (5).

3. A quick-release grass cutting mechanism according to claim 2, characterized in that: The outer wall of the first latch pin (4) is provided with a first annular groove (401) for engaging with the first spring buckle (5); the first spring buckle (5) is inserted in the height direction of the second swing arm (3) and engaged with the first annular groove (401); and the first spring buckle (5) is threadedly connected to the second swing arm (3).

4. The quick-release grass cutting mechanism according to claim 2, characterized in that: Insert blocks (6) are longitudinally arranged at both end portions of the bracket (1), and slots for the insert blocks (6) to be inserted into are correspondingly arranged at both end portions of the second swing arm (3), the insert blocks (6) protrude upwards into the slots, and the insert blocks (6) are provided with through holes for the first latch pin (4) to pass through.

5. The quick-release grass cutting mechanism according to claim 1, characterized in that: The mowing assembly comprises a reel (7) and a bed knife (8), wherein both ends of the reel (7) are rotatably connected to a bracket (1), and the bed knife (8) comprises a bed knife seat (801), a blade (802) and a connecting flange (803), wherein the upper end of the bed knife seat (801) is movably connected to the bracket (1), and the lower end of the bed knife seat (801) is connected to the blade (802), and the blade (802) is used to cooperate with the reel (7) to mow grass, and the two sides of one end of the bed knife seat (801) close to the blade (802) are detachably connected to the bracket (1) via connecting flanges (803).

6. A quick-release grass cutting mechanism according to claim 5, characterized in that: The bracket (1) is provided with a screw fixing seat (9), and the screw fixing seat (9) is threadedly connected to the upper end of the bottom knife seat (801) through a screw (10).

7. The quick-release grass cutting mechanism according to claim 5, characterized in that: Second clamping structures are respectively provided between the two side portions of the bottom knife seat (801) and the connecting flanges (803) on the corresponding sides thereof and the side ends of the bracket (1).

8. The quick-release grass cutting mechanism according to claim 7, characterized in that: The second locking structure comprises a second latch (13) and a second spring buckle (14); both sides of the bottom knife seat (801) and the corresponding connecting flange (803) are provided with second positioning pin holes for inserting the second latch (13); the second latch (13) is inserted into the second positioning pin hole from one side of the bottom knife seat (801) in the length direction and is engaged with the second spring buckle (14).

9. The quick-release grass cutting mechanism according to claim 8, characterized in that: The outer wall of the second latch (13) is provided with a second annular groove which cooperates with and engages with the second spring buckle (14); one end of the second spring buckle (14) is inserted into the connecting flange (803) and is vertically engaged with the second annular groove; and the second spring buckle (14) is threadedly connected to the connecting flange (803).

10. A lawn mower, characterized in that: It comprises a quick-detachable lawn mowing mechanism as described in any one of claims 1 to 9.

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