Lawn mower with blade convenient to replace

Abstract

The utility model relates to the technical field of agricultural mechanical equipment, and discloses a mowing machine convenient to replace a blade, which comprises a mowing machine body, the mowing machine body comprises a servo motor, the bottom of the servo motor is fixedly provided with an operating rod, the outer surface of the operating rod is sleeved with a U-shaped handle, and the U-shaped handle is fixedly connected with the operating rod. And a movable seat is fixedly mounted at the bottom of the operating rod. According to the utility model, the movable sleeve is lifted by pulling to ensure that the limiting ball has a space for ascending, when the dismounting seat is inserted into the mounting sleeve, the limiting ball is driven to ascend by utilizing the convex part on the surface of the dismounting seat, and after the dismounting seat is mounted, the limiting ball slides to the limiting groove by utilizing the weight of the limiting ball and the movable seat, so that the limiting of the dismounting seat is completed; when dismounting is needed, reverse operation is carried out, the limiting ball is limited by the protruding portion of the dismounting base and is matched with the moving base to move upwards, it is ensured that dismounting is free of resistance, due to the fact that the blade is clamped between the dismounting base and the mounting screw, rapid replacement is achieved, and the working efficiency and maintenance convenience are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a lawn mower with easy-to-replace blades. Background Art

[0002] With the continuous evolution of mechatronics and automation technology, especially breakthroughs in the field of electric garden tools, the demand for convenience, reliability and efficiency of equipment is increasing. The pace of modern life is accelerating. Whether professional gardeners or ordinary home users, they are eager to have tools that can respond quickly and are easy to maintain.

[0003] Among them, the "side-mounted lawn mower" disclosed in publication number "CN211630958U" has solved the many disadvantages of existing lawn mowers, such as the lack of a simple structure, smooth use, a shock absorber and a simple mowing head. However, in actual use, lawn mowers with similar structures still have many defects, such as: replacing the blades of existing lawn mowers is often time-consuming and labor-intensive, affecting work efficiency, so there is a need to design a lawn mower that is easy to replace the blades. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a lawn mower with easy blade replacement.

[0005] The utility model adopts the following technical solution: a lawn mower that is easy to replace blades, including a lawn mower body, the lawn mower body including a servo motor, an operating rod fixedly mounted on the bottom of the servo motor, a U-shaped handle sleeved on the outer surface of the operating rod, a movable seat fixedly mounted on the bottom of the operating rod, and further comprising:

[0006] An installation assembly, the installation assembly includes a mounting seat, a movable seat is rotatably mounted inside the mounting seat, and a mounting sleeve is fixedly mounted on the bottom of the mounting seat;

[0007] A fixed assembly, the fixed assembly comprising a movable sleeve, wherein a limiting ball is slidably mounted inside the movable sleeve;

[0008] The disassembly assembly comprises a disassembly seat, a limiting groove is provided on the outer surface of the disassembly seat, and a blade is connected to the internal thread of the disassembly seat.

[0009] As a further improvement of the above solution, a first fixing plate is fixedly mounted on the bottom of the mounting seat, and a second fixing plate is threadedly connected to the bottom of the first fixing plate via a fixing screw.

[0010] Through the above technical solution, the first fixing plate and the second fixing plate are threadedly connected through the fixing screw, which enhances the overall rigidity of the mounting base and ensures structural stability under long-term operation.

[0011] As a further improvement of the above solution, a mounting sleeve is fixedly installed on the bottom of the second fixed plate, a limiting ring is provided on the outer surface of the mounting sleeve, a buffer spring is provided at the bottom of the limiting ring, and the buffer spring is sleeved on the outer surface of the mounting sleeve.

[0012] Through the above technical solution, the introduction of the buffer spring provides a shock-absorbing effect between the limiting ring and the mounting sleeve, reduces impact, and extends the life of the components.

[0013] As a further improvement of the above solution, the outer surface of the mounting sleeve is sleeved with a movable sleeve, the interior of the movable sleeve is slidably mounted with a movable seat, and the front end of the movable seat is rotatably mounted with a connecting rod.

[0014] Through the above technical solution, the addition of the movable sleeve allows the movable seat to slide longitudinally, creating the possibility for the dynamic response of the entire system and enhancing the flexibility of the mechanism.

[0015] As a further improvement of the above solution, the end of the connecting rod away from the movable seat is rotatably installed inside the mounting rod, the end of the mounting rod away from the connecting rod is fixedly installed with a limiting rod, and the outer surface of the limiting rod is rotatably installed with a limiting ball.

[0016] Through the above technical solution, the rotational relationship between the connecting rod and the mounting rod, combined with the limiting ball on the limiting rod, realizes precise positioning and automatic locking functions, and simplifies the blade replacement steps.

[0017] As a further improvement of the above solution, a disassembly seat is provided inside the mounting sleeve, a limiting groove provided on the outer surface of the disassembly seat matches the limiting ball, and a limiting screw is provided inside the disassembly seat.

[0018] As a further improvement of the above solution, the interior of the disassembly seat is threadedly connected to a mounting screw via a limiting screw, and a blade is rotatably mounted on the top of the mounting screw.

[0019] Through the above technical solution, the cooperation between the limiting screw and the installation screw is used to achieve rapid installation and removal of the blade, reduce downtime, and improve maintenance efficiency and machine utilization.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model ensures that the limit ball has space to rise by pulling up the movable sleeve, and the buffer spring is arranged between the movable sleeve and the limit ring, which can provide buffer when the movable sleeve is subsequently reset. When the disassembly seat is inserted into the installation sleeve, the raised part on the surface of the disassembly seat will drive the limit ball to rise. When the disassembly seat is installed, the limit ball will use its own weight to slide to the limit groove using the moving seat to complete the limitation of the disassembly seat. When disassembly is required, the operation is reversed, and the limit ball is restricted by the protruding part of the disassembly seat and cooperates with the moving seat to move upward to ensure unobstructed disassembly. Since the blade is clamped between the disassembly seat and the installation screw, quick replacement can be achieved, which significantly improves work efficiency and maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the installation assembly of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the installation component of the utility model;

[0025] Figure 4 This is a front cross-sectional structural diagram of the installation assembly of the utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the movable sleeve of the utility model.

[0027] Description of main symbols:

[0028] 1. Lawn mower body; 101. Servo motor; 102. U-shaped handle; 103. Operating lever; 104. Movable seat; 2. Mounting assembly; 201. Mounting seat; 202. First fixing plate; 203. Second fixing plate; 204. Fixing screw; 205. Mounting sleeve; 206. Limiting ring; 207. Buffer spring; 3. Fixing assembly; 301. Movable sleeve; 302. Movable seat; 303. Connecting rod; 304. Mounting rod; 305. Limiting rod; 306. Limiting ball; 4. Disassembly assembly; 401. Disassembly seat; 402. Limiting groove; 403. Limiting screw; 404. Blade; 405. Mounting screw. DETAILED DESCRIPTION

[0029] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Example:

[0031] Please combine Figure 1-5The present embodiment provides a lawn mower that facilitates blade replacement, including a lawn mower body 1, the lawn mower body 1 including a servo motor 101, an operating rod 103 fixedly mounted at the bottom of the servo motor 101, a U-shaped handle 102 sleeved on the outer surface of the operating rod 103, a movable seat 104 fixedly mounted at the bottom of the operating rod 103, and further comprising:

[0032] Mounting assembly 2, which includes a mounting base 201, a movable base 104 is rotatably mounted inside the mounting base 201, and a mounting sleeve 205 is fixedly mounted on the bottom of the mounting base 201;

[0033] The fixing assembly 3 includes a movable sleeve 301, and a limiting ball 306 is slidably installed inside the movable sleeve 301;

[0034] The disassembly assembly 4 includes a disassembly seat 401 , a limiting groove 402 provided on the outer surface of the disassembly seat 401 matches the limiting ball 306 , and a blade 404 is connected to the internal thread of the disassembly seat 401 .

[0035] A first fixing plate 202 is fixedly mounted on the bottom of the mounting base 201 , and a second fixing plate 203 is threadedly connected to the bottom of the first fixing plate 202 via a fixing screw 204 .

[0036] When the movable seat 104 is mounted on the surface of the mounting seat 201, the blade 404 can be adjusted in angle. When the fixing screw 204 is removed from the first fixing plate 202 and the second fixing plate 203, the parts in the mounting assembly 2 and the fixing assembly 3 can be maintained or replaced.

[0037] A mounting sleeve 205 is fixedly mounted on the bottom of the second fixing plate 203 . A limiting ring 206 is provided on the outer surface of the mounting sleeve 205 . A buffer spring 207 is provided on the bottom of the limiting ring 206 . The buffer spring 207 is sleeved on the outer surface of the mounting sleeve 205 .

[0038] The buffer spring 207 is provided between the movable sleeve 301 and the limiting ring 206 to provide a buffer when the movable sleeve 301 is subsequently reset.

[0039] The outer surface of the mounting sleeve 205 is sleeved with a movable sleeve 301 , the interior of the movable sleeve 301 is slidably mounted with a movable seat 302 , and the front end of the movable seat 302 is rotatably mounted with a connecting rod 303 .

[0040] The end of the connecting rod 303 away from the movable seat 302 is rotatably mounted inside the mounting rod 304 . The end of the mounting rod 304 away from the connecting rod 303 is fixedly mounted with a limiting rod 305 . The outer surface of the limiting rod 305 is rotatably mounted with a limiting ball 306 .

[0041] By pulling up the movable sleeve 301, it is ensured that the limiting ball 306 has space to rise when the disassembly seat 401 is installed in the installation sleeve 205, and the buffer spring 207 is arranged between the movable sleeve 301 and the limiting ring 206, which can provide a buffer when the movable sleeve 301 is subsequently reset. When the disassembly seat 401 is inserted into the installation sleeve 205, the raised part of the surface of the disassembly seat 401 will press against the limiting ball 306. At this time, the limiting ball 306 will show an upward trend, and the connecting rod 303 will rotate in the installation rod 304 and rotate downward to push the movable seat 302 in the movable sleeve 301 to descend, ensuring that the limiting ball 306 is raised, and the limiting rod 305 ensures that the limiting ball 306 is rotated and installed between the installation rods 304.

[0042] A disassembly seat 401 is provided inside the mounting sleeve 205 . A limiting groove 402 matching the limiting ball 306 is provided on the outer surface of the disassembly seat 401 . A limiting screw 403 is provided inside the disassembly seat 401 .

[0043] The interior of the disassembly seat 401 is threadedly connected to a mounting screw 405 via a limiting screw 403 , and a blade 404 is rotatably mounted on the top of the mounting screw 405 .

[0044] The implementation principle of the lawn mower for facilitating blade replacement in the embodiment of the present application is as follows: by pulling the handle on the surface of the movable sleeve 301, the movable sleeve 301 is pulled up to ensure that the limiting ball 306 has space to rise when the disassembly seat 401 is installed in the installation sleeve 205, and the buffer spring 207 is arranged between the movable sleeve 301 and the limiting ring 206, which can provide a buffer when the movable sleeve 301 is subsequently reset. When the disassembly seat 401 is inserted into the installation sleeve 205, the raised part on the surface of the disassembly seat 401 will press against the limiting ball 306. At this time, the limiting ball 306 will show an upward trend, and the connecting rod 303 will rotate in the installation rod 304 and rotate downward to push the movable seat 302 in the movable sleeve 301 to descend, ensuring that the limiting ball 306 is raised, and the limiting rod 305 ensures that the limiting ball 306 is rotatably installed between the installation rods 304;

[0045] When the disassembly seat 401 is installed, the limiting ball 306 will first fall by its own weight. At this time, the movable seat 302 drives the connecting rod 303 to rise in the movable sleeve 301, pushing the installation rod 304 to adjust to the left, and at the same time, drives the limiting ball 306 to fall and slide to the limiting groove 402, completing the limitation of the disassembly seat 401.

[0046] When disassembly is required, the operation is reversed. The limiting ball 306 is restricted by the protruding portion of the disassembly seat 401, and the movable seat 302 moves upward to ensure unobstructed disassembly. The limiting screw 403 can ensure that the installation screw 405 can be installed and disassembled using its thread. Since the blade 404 is clamped between the disassembly seat 401 and the installation screw 405, it can be quickly replaced, significantly improving work efficiency and maintenance convenience.

[0047] The servo motor 101 can ensure that the blade 404 is electrically driven, and the operating lever 103 can not only support the servo motor 101, the mounting assembly 2, the fixing assembly 3 and the disassembly assembly 4, but also ensure that power is transmitted to the blade 404. The U-shaped handle 102 facilitates the operator to control the lawn mower body 1. When the movable seat 104 is installed on the surface of the mounting seat 201, the angle of the blade 404 can be adjusted. When the fixing screw 204 is removed from the first fixing plate 202 and the second fixing plate 203, the parts in the mounting assembly 2 and the fixing assembly 3 can be maintained or replaced.

[0048] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A lawn mower for convenient blade replacement, comprising a lawn mower body (1), the lawn mower body (1) comprising a servo motor (101), an operating rod (103) fixedly mounted at the bottom of the servo motor (101), a U-shaped handle (102) sleeved on the outer surface of the operating rod (103), and a movable seat (104) fixedly mounted at the bottom of the operating rod (103), characterized in that: Also includes: A mounting assembly (2), the mounting assembly (2) comprising a mounting seat (201), a movable seat (104) being rotatably mounted inside the mounting seat (201), and a mounting sleeve (205) being fixedly mounted on the bottom of the mounting seat (201); A fixed assembly (3), the fixed assembly (3) comprising a movable sleeve (301), a limiting ball (306) being slidably mounted inside the movable sleeve (301); A disassembly assembly (4) comprises a disassembly seat (401), a limiting groove (402) is provided on the outer surface of the disassembly seat (401), and a blade (404) is connected to the inner thread of the disassembly seat (401).

2. A lawn mower with easy blade replacement according to claim 1, characterized in that: A first fixing plate (202) is fixedly mounted on the bottom of the mounting seat (201), and a second fixing plate (203) is threadedly connected to the bottom of the first fixing plate (202) via a fixing screw (204).

3. A lawn mower with easy blade replacement according to claim 2, characterized in that: A mounting sleeve (205) is fixedly mounted on the bottom of the second fixing plate (203), and a limiting ring (206) is provided on the outer surface of the mounting sleeve (205).

4. A lawn mower with easy blade replacement according to claim 3, characterized in that: A buffer spring (207) is provided at the bottom of the limiting ring (206), and the buffer spring (207) is sleeved on the outer surface of the mounting sleeve (205).

5. A lawn mower with easy blade replacement according to claim 4, characterized in that: The outer surface of the installation sleeve (205) is sleeved with a movable sleeve (301), the interior of the movable sleeve (301) is slidably mounted with a movable seat (302), and the front end of the movable seat (302) is rotatably mounted with a connecting rod (303).

6. A lawn mower with easy blade replacement according to claim 5, characterized in that: One end of the connecting rod (303) away from the movable seat (302) is rotatably mounted inside the mounting rod (304).

7. A lawn mower with easy blade replacement according to claim 6, characterized in that: A limiting rod (305) is fixedly mounted on one end of the mounting rod (304) away from the connecting rod (303), and a limiting ball (306) is rotatably mounted on the outer surface of the limiting rod (305).

8. The lawn mower with easy blade replacement according to claim 3, characterized in that: A disassembly seat (401) is provided inside the installation sleeve (205), a limiting groove (402) provided on the outer surface of the disassembly seat (401) matches the limiting ball (306), and a limiting screw (403) is provided inside the disassembly seat (401).

9. A lawn mower with easy blade replacement according to claim 8, characterized in that: The interior of the disassembly seat (401) is threadedly connected to a mounting screw (405) via a limiting screw (403), and a blade (404) is rotatably mounted on the top of the mounting screw (405).

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