Disc mower with avoidance mechanism
By introducing an obstacle avoidance mechanism and a buffer component into the disc mower, the problem of collision between the cutter disc and obstacles is solved, enabling the cutter disc to safely bypass and protect itself, and reducing the risk of equipment damage.
Patent Information
- Application Number
- CN202520603442.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The existing disc mowers have a fixed connection between the cutting disc and the mounting bracket, which makes the cutting disc easily damaged when it encounters obstacles. This can even cause the outer shell of the cutting disc to deform and collide with the cutting blade, posing a safety hazard and damaging the equipment.
A collision avoidance mechanism was designed, comprising a fixed shaft, a fixed arm, a pull rod, and a tension spring. When the cutting disc encounters an obstacle, it bypasses the obstacle by using the fixed shaft as the pivot point to pull the tension spring to make the cutting disc bypass the obstacle and reset after bypassing it. It is combined with anti-collision springs, steel rings, and an outer protective sleeve for buffer protection.
It effectively avoids strong collisions between the cutting disc and obstacles, protects the cutting disc and equipment, reduces the risk of damage, and improves safety and equipment lifespan.
Smart Images
Figure CN223958034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lawnmower technology, and in particular to a disc lawnmower with a collision avoidance mechanism. Background Technology
[0002] A disc mower is a common lawn mowing device, typically used in agriculture or horticulture to efficiently remove weeds and grasses from lawns or meadows.
[0003] Currently, the cutting disc of a disc mower is usually fixedly connected to the mounting bracket and cannot move relative to it. This makes it easy for the cutting disc to collide with obstacles when it encounters them, causing damage to the outer shell of the cutting disc. In some cases, the outer shell of the cutting disc may even deform and collide with the cutting blade, which is not only dangerous but also damages the equipment. Therefore, improvements are needed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a disc mower with a collision avoidance mechanism. This solves the problem that in the prior art, the disc mower and the mounting frame are usually fixedly connected and cannot move relative to each other. This causes the disc to easily collide with obstacles when it encounters them, resulting in damage to the disc shell, or even deformation of the disc shell and collision with the cutter blade. This is not only dangerous but also damages the equipment.
[0005] In view of this, the present invention provides a disc mower with a clearance mechanism, including a mounting frame, a lifting shaft rotatably connected to the bottom of one end of the mounting frame, a first support arm fixedly installed at one end of the lifting shaft, a hydraulic cylinder movably installed between the first support arm and the mounting frame, a fixed seat fixedly installed on the outer wall of one end of the lifting shaft, a second support arm provided at one end of the fixed seat, a cutting disc fixedly installed at one end of the second support arm, and a clearance component provided between the fixed seat and the second support arm;
[0006] The avoidance assembly includes a fixed shaft, a fixed arm, a pull rod, and a tension spring. The fixed shaft is fixedly installed at one end of the fixed base, the fixed arm is fixedly installed on one side of the fixed base, one end of the pull rod is fixedly installed at one end of the fixed arm, and the tension spring is fixedly installed between the pull rod and one end of the second support arm.
[0007] Optionally, one end of the second support arm is rotatably connected to the outer wall of the fixed shaft, and the other end of the second support arm is movably mounted on the inner side of one end of the fixed seat through the setting of the fixed shaft.
[0008] Optionally, one end of the hydraulic cylinder is rotatably connected to one end of the first support arm, and the other end of the hydraulic cylinder is rotatably connected to one side of the top of the mounting bracket.
[0009] Optionally, the cutting disc includes an outer cover, a cutting blade, several anti-collision springs, a steel ring, and an outer protective sleeve. The outer cover is fixedly installed at one end of the second support arm, the cutting blade is rotatably connected to the inside of the outer cover, one end of the anti-collision spring is fixedly connected to the edge of the outer cover, the steel ring is fixedly connected to the end of the anti-collision spring away from the outer cover, and the outer protective sleeve is fitted on the outer wall of the steel ring.
[0010] Optionally, several of the anti-collision springs are arranged in a circular array at the outer edge of the outer cover.
[0011] Optionally, the steel ring is made of spring steel.
[0012] Optionally, the inner side of the outer sheath is fixedly connected to the outer side of the outer cover, and the outer sheath is made of rubber.
[0013] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:
[0014] 1. This utility model discloses a disc mower with an obstacle avoidance mechanism. Specifically, when the machine is moving, if the cutting disc encounters an obstacle, the cutting disc will use the fixed shaft as the pivot point, causing one end of the second support arm to pull the tension spring and the other end to move backward, so that the cutting disc can bypass the obstacle. After bypassing the obstacle, the cutting disc will return to its original position under the action of the tension spring, thus avoiding a strong collision between the cutting disc and the obstacle that could damage the equipment.
[0015] 2. This utility model discloses a disc mower with an obstacle avoidance mechanism. By installing an anti-collision spring, a steel ring, and an outer protective sleeve on the edge of the outer cover of the cutting disc, the cutting disc will come into contact with the outer protective sleeve at the moment of collision with an obstacle. The point of collision will compress the steel ring, and then the steel ring will compress the anti-collision spring for buffering, thereby further protecting the cutting disc and reducing the user's losses.
[0016] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings:
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a side view of the present invention;
[0020] Figure 3 This is a top view of the present invention;
[0021] Figure 4 This utility model Figure 2 Enlarged view of a portion of point A in the middle;
[0022] Figure 5 This is a schematic diagram of the cutting disc structure of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Hanging frame; 201. Lifting shaft; 202. First support arm; 3. Hydraulic cylinder; 4. Fixed seat; 5. Second support arm; 601. Fixed shaft; 602. Fixed arm; 603. Pull rod; 604. Tension spring; 7. Cutting disc; 701. Outer cover; 702. Cutting blade; 703. Anti-collision spring; 704. Steel ring; 705. Outer protective sleeve. Detailed Implementation
[0024] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0025] The following describes in detail, with reference to the accompanying drawings, an embodiment of the present invention: a disc lawnmower with an obstacle avoidance mechanism.
[0026] Example 1
[0027] For easier understanding, please refer to Figures 1 to 5 An embodiment of a disc mower with a clearance mechanism provided by this utility model includes a mounting frame 1, a lifting shaft 201 rotatably connected to the bottom of one end of the mounting frame 1, a first support arm 202 fixedly installed at one end of the lifting shaft 201, a hydraulic cylinder 3 movably installed between the first support arm 202 and the mounting frame 1, a fixed seat 4 fixedly installed on the outer wall of one end of the lifting shaft 201, a second support arm 5 provided at one end of the fixed seat 4, a cutting disc 7 fixedly installed at one end of the second support arm 5, and a clearance component provided between the fixed seat 4 and the second support arm 5.
[0028] It should be noted that the mounting bracket 1 is used to attach to the drive equipment, and through the cooperation of the hydraulic cylinder 3, the first support arm 202 and the lifting shaft 201, the fixed base 4 rotates around the lifting shaft 201, thereby controlling the cutting disc 7 at one end of the second support arm 5 to rise and fall.
[0029] The obstacle avoidance assembly includes a fixed shaft 601, a fixed arm 602, a pull rod 603, and a tension spring 604. The fixed shaft 601 is fixedly installed at one end of the fixed base 4, the fixed arm 602 is fixedly installed at one side of the fixed base 4, one end of the pull rod 603 is fixedly installed at one end of the fixed arm 602, and the tension spring 604 is fixedly installed between the pull rod 603 and one end of the second support arm 5. One end of the second support arm 5 is rotatably connected to the outer wall of the fixed shaft 601, and one end of the second support arm 5 is movably installed on the inner side of one end of the fixed base 4 through the setting of the fixed shaft 601. One end of the hydraulic cylinder 3 is rotatably connected to one end of the first support arm 202, and the other end of the hydraulic cylinder 3 is rotatably connected to one side of the top of the hanger 1.
[0030] It should be noted that by setting a fixed shaft 601 for mounting the second support arm 5, the second support arm 5 can rotate around the fixed shaft 601 as the pivot point. At the same time, a tension spring 604 is set to hold one end of the second support arm 5. During the machine's movement, if the cutting disc 7 encounters an obstacle, the cutting disc 7 will use the fixed shaft 601 as the pivot point, causing one end of the second support arm 5 to pull the tension spring 604, and the other end to move backward, so that the cutting disc 7 can bypass the obstacle. After bypassing the obstacle, the cutting disc 7 returns to its original position under the action of the tension spring 604, thus avoiding a strong collision between the cutting disc 7 and the obstacle that could damage the equipment.
[0031] Example 2
[0032] In some embodiments, such as Figure 2 , Figure 4 As shown, the cutting disc 7 includes an outer cover 701, a cutting blade 702, several anti-collision springs 703, a steel ring 704, and an outer protective sleeve 705. The outer cover 701 is fixedly installed at one end of the second support arm 5. The cutting blade 702 is rotatably connected to the inner side of the outer cover 701. One end of several anti-collision springs 703 is fixedly connected to the edge of the outer cover 701. The steel ring 704 is fixedly connected to the end of the anti-collision springs 703 away from the outer cover 701. The outer protective sleeve 705 is sleeved on the outer wall of the steel ring 704. Several anti-collision springs 703 are arranged in a ring array at the outer edge of the outer cover 701. The steel ring 704 is made of spring steel. The inner side of the outer protective sleeve 705 is fixedly connected to the outer side of the outer cover 701. The outer protective sleeve 705 is made of rubber.
[0033] It should be noted that by setting up anti-collision spring 703, steel ring 704 and outer protective sleeve 705, at the moment the cutter disc 7 collides with an obstacle, it will come into contact with the outer protective sleeve 705. The point of impact will compress the steel ring 704, and then the steel ring 704 will compress the anti-collision spring 703 for buffering, thereby further protecting the cutter disc 7 and reducing the user's losses. The main function of the outer protective sleeve 705 is to prevent weeds from easily getting tangled with the anti-collision spring 703.
[0034] Working principle: During operation, if the cutting disc 7 encounters an obstacle while the machine is moving, the cutting disc 7 will first come into contact with the outer protective sleeve 705 at the moment of collision with the obstacle. The point of collision will compress the steel ring 704, and then the steel ring 704 will compress the anti-collision spring 703 for buffering. Then, the cutting disc 7 will use the fixed shaft 601 as the pivot point, causing one end of the second support arm 5 to pull the tension spring 604 and the other end to move backward, so that the cutting disc 7 can bypass the obstacle. After bypassing the obstacle, the cutting disc 7 will return to its original position under the action of the tension spring 604, thus avoiding a strong collision between the cutting disc 7 and the obstacle that could damage the equipment.
[0035] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A disc lawnmower with a collision avoidance mechanism, characterized in that: The device includes a mounting bracket (1), with a lifting shaft (201) rotatably connected to the bottom of one end of the mounting bracket (1). A first support arm (202) is fixedly installed at one end of the lifting shaft (201). A hydraulic cylinder (3) is movably installed between the first support arm (202) and the mounting bracket (1). A fixed seat (4) is fixedly installed on the outer wall of one end of the lifting shaft (201). A second support arm (5) is provided at one end of the fixed seat (4). A cutting disc (7) is fixedly installed at one end of the second support arm (5). An obstacle avoidance component is provided between the fixed seat (4) and the second support arm (5). The avoidance assembly includes a fixed shaft (601), a fixed arm (602), a pull rod (603), and a tension spring (604). The fixed shaft (601) is fixedly installed at one end of the fixed seat (4), the fixed arm (602) is fixedly installed on one side of the fixed seat (4), one end of the pull rod (603) is fixedly installed at one end of the fixed arm (602), and the tension spring (604) is fixedly installed between the pull rod (603) and one end of the second support arm (5).
2. A disc lawnmower with a clearance mechanism according to claim 1, characterized in that: One end of the second support arm (5) is rotatably connected to the outer wall of the fixed shaft (601), and one end of the second support arm (5) is movably installed on the inner side of one end of the fixed seat (4) through the setting of the fixed shaft (601).
3. A disc lawnmower with a clearance mechanism according to claim 1, characterized in that: One end of the oil cylinder (3) is rotatably connected to one end of the first support arm (202), and the other end of the oil cylinder (3) is rotatably connected to the top side of the hanging frame (1).
4. A disc lawnmower with a clearance mechanism according to claim 1, characterized in that: The cutting disc (7) includes an outer cover (701), a cutting blade (702), several anti-collision springs (703), a steel ring (704), and an outer protective sleeve (705). The outer cover (701) is fixedly installed at one end of the second support arm (5). The cutting blade (702) is rotatably connected to the inside of the outer cover (701). One end of several anti-collision springs (703) is fixedly connected to the edge of the outer cover (701). The steel ring (704) is fixedly connected to the end of the anti-collision spring (703) away from the outer cover (701). The outer protective sleeve (705) is fitted on the outer wall of the steel ring (704).
5. A disc lawnmower with a clearance mechanism according to claim 4, characterized in that: Several of the aforementioned anti-collision springs (703) are arranged in a circular array at the outer edge of the outer cover (701).
6. A disc lawnmower with a clearance mechanism according to claim 4, characterized in that: The steel ring (704) is made of spring steel.
7. A disc lawnmower with a clearance mechanism according to claim 4, characterized in that: The inner side of the outer sheath (705) is fixedly connected to the outer side of the outer cover (701), and the outer sheath (705) is made of rubber.