Adaptive green mowing head

Abstract

The utility model relates to the technical fields of afforesting and mowing device, concretely is a kind of self-adapting afforestation mower head, including machine cover, cutter and cutter driving part, the cutter is located below machine cover, and cutter driving part is connected with cutter and is arranged on the upper side of machine cover;It further includes detection rod;Supporting leg is symmetrically arranged on the left and right sides of the machine cover, the left and right ends of the detection rod respectively pass through first baffle and second baffle arranged on supporting leg, and buffer portion is arranged between first baffle and second baffle;The buffer portion includes reset spring that is sleeved on detection rod, one end of reset spring is on second baffle, the other end is on the blocking ring of detection rod, and the tail end of detection rod passes through second baffle;Cutter start-stop switch is arranged in the rear of second baffle.The utility model can trigger cutter start-stop switch in time, realize the start-stop control of cutter, effectively avoid the damage of protruding foreign matter to cutter.

Description

Technical Field

[0001] This utility model relates to the technical field of greening mowing devices, specifically an adaptive greening mowing head. Background Technology

[0002] In municipal landscaping, lawns and weeds need to be trimmed regularly. Existing lawnmower equipment includes simple handheld types, small self-propelled walk-behind mowers, and large motorized mowers. Self-propelled walk-behind mowers offer advantages such as ease of operation, labor saving, and strong adaptability. Their main structure includes a walk-behind motor and a mower head located at the front of the motor. The mower head is connected to the motor via a drive shaft. The mower blades are located under the hood of the mower head, and types of blades include disc blades, blade blades, and nylon rope blades. However, the following problems exist during use: hard objects such as stones may be carelessly discarded in the lawn. Encountering these hard objects during mowing can damage or directly destroy the mower blades. To avoid damage to the mower blades, a mower head is designed that can detect protruding objects in the lawn and stop the mower's operation in a timely manner. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides an adaptive greening lawn mower head that can detect protruding foreign objects in the grass and stop the mower blades in time.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An adaptive lawn mower head includes a hood, a cutter blade, and a cutter blade drive unit. The cutter blade is located below the hood, and the cutter blade drive unit, connected to the cutter blade, is located above the hood. It also includes a detection rod. Support feet are symmetrically arranged on the left and right sides of the hood. The left and right ends of the detection rod pass through a first baffle and a second baffle respectively, which are located on the support feet. A buffer portion is provided between the first and second baffles. The buffer portion includes a return spring sleeved on the detection rod. One end of the return spring abuts against the second baffle, and the other end abuts against a retaining ring on the detection rod. The end of the detection rod passes through the second baffle. A cutter start / stop switch is located behind the second baffle.

[0006] Furthermore, the buffer section also includes a force adjustment mechanism, which includes a pressure member for adjusting the length of the return spring.

[0007] Furthermore, the pressing component includes a C-shaped component that cooperates with the detection rod and a plurality of first positioning holes equally spaced on the support foot, wherein the two ends of the C-shaped component are provided with second positioning holes corresponding to the first positioning holes.

[0008] Furthermore, the pressure member includes a threaded section disposed on the detection rod and a nut disposed on the threaded section.

[0009] Furthermore, the cutter start / stop switch is a remote control switch.

[0010] Furthermore, the front end of the support leg is raised upwards.

[0011] Furthermore, the cutter is located below the detection rod.

[0012] Furthermore, a retraction limiting ring is provided on the detection rod in front of the first baffle.

[0013] The beneficial effects of this utility model are:

[0014] When the lawnmower head is working, the detection rod touches the protruding foreign object first, which can trigger the cutter start / stop switch in time, realize the start and stop control of the cutter, and effectively avoid damage to the cutter by the protruding foreign object. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first embodiment of the present invention (excluding the return spring);

[0016] Figure 2 This is a side view of the first embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present invention (excluding the return spring);

[0018] Figure 4 This is a side view of the second embodiment of the present invention;

[0019] Figure 5 This is a side view of the third embodiment of the present invention;

[0020] In the figure, the components are: 1. Machine cover; 101. Support foot; 101. First positioning hole; 1011. First baffle; 102. Second baffle; 103. Cutting blade; 2. Cutting blade drive unit; 3. Detection rod; 4. Retaining ring; 401. Retraction limit ring; 402. Threaded section; 403. Reset spring; 5. Cutting blade start / stop switch; 6. C-shaped part; 7. Second positioning hole; 701. Nut; 8. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the following will describe the embodiments of the present invention in conjunction with the appended descriptions. Figures 1-5The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] First embodiment:

[0023] The adaptive lawn mower head of this utility model includes a cover 1, a cutter 2, a cutter drive unit 3, and a detection rod 4. The cutter 2 is located below the cover 1, and the cutter drive unit 3, connected to the cutter 2, is located above the cover 1. The drive unit 3 is powered by a transmission shaft and a power head. The cutter 2 is located below the detection rod 4, preferably 0.5-1 cm below the horizontal plane where the bottom surface of the detection rod 4 is located. Support feet 101 are symmetrically arranged on the left and right sides of the cover 1. To facilitate pushing, the front end of the support feet 101 is raised upwards. A first baffle 102 and a second baffle 103 are arranged on the front and rear sides of the support feet 101. The left and right ends of the detection rod 4 pass through the first baffle 102 and the second baffle 103 respectively on the support feet 101 and can slide back and forth along the first baffle 102 and the second baffle 103. A buffer part is provided between the first baffle 102 and the second baffle 103. In order to limit the backward movement of the detection rod 4, a backward movement limiting ring 402 is provided on the detection rod 4 in front of the first baffle 102. The backward movement limiting ring 402 cannot cross the first baffle 102.

[0024] The buffer section includes a return spring 5 sleeved on the detection rod 4. One end of the return spring 5 abuts against the second baffle 103, and the other end abuts against the retaining ring 401 of the detection rod 4. The end of the detection rod 4 passes through the second baffle. A cutter start / stop switch 6 is provided behind the second baffle 103 of one of the support feet 101. The cutter start / stop switch 6 can be connected to the controller of the power mechanism by wired or wireless means, preferably wirelessly. That is, the cutter start / stop switch 6 is equivalent to a wireless remote control. Its front end is a push-button switch, and the rear end is equipped with a battery compartment. The push-button switch is preferably an inching switch. It is used to control the start and stop of the cutter. Of course, the cutter start / stop switch 6 can control only the start and stop of the cutter, or it can control the start and stop of the entire lawnmower. When the front end of the detection rod 4 touches a foreign object, the detection rod 4 overcomes the resistance of the return spring 5 and moves backward. The end of the detection rod 4 touches the cutter start / stop switch 6, and the cutter stops rotating. Then the operator pulls the lawnmower backward, and the detection rod 4 returns to its initial position under the action of the return spring 5.

[0025] It should be noted that the shape of the detection rod 4... Figure 1The square shape in the image is merely an illustration of one embodiment; it can also be designed with a semi-circular front end.

[0026] Second embodiment:

[0027] To adjust the force of the return spring 5 and thus adjust the sensitivity of the detection rod 4 when facing different types and sizes of grass, this invention, based on Embodiment 1, incorporates a force adjustment mechanism. This mechanism includes a pressure member for adjusting the length of the return spring. The pressure member comprises a C-shaped component 7 that mates with the detection rod and several first positioning holes 1011 evenly spaced on the support foot 101. The C-shaped component 7 has second positioning holes 701 at both ends corresponding to the first positioning holes 1011. Bolts are used to pass through the first and second positioning holes 1011 to fix the C-shaped component 7 to the support foot 101. The compression of the return spring 5 can be adjusted through the first positioning holes 1011, thereby achieving the reaction force of the return spring 5 on the detection rod.

[0028] Third embodiment:

[0029] Based on Embodiment 1, this invention designs another force adjustment mechanism, which includes a pressure member for adjusting the length of the return spring. The pressure member includes a threaded section 403 on the detection rod 4 and a nut 8 on the threaded section 403. Preferably, two nuts 8 can be provided. The compression of the return spring 5 is adjusted by moving the nuts 8 back and forth on the detection rod 4.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An adaptive lawn mower head, comprising a shroud, a cutter blade, and a cutter blade drive unit, wherein the cutter blade is located below the shroud, and the cutter blade drive unit connected to the cutter blade is disposed above the shroud; characterized in that: It also includes a detection rod; support feet are symmetrically arranged on the left and right sides of the machine cover, and the left and right ends of the detection rod pass through the first baffle and the second baffle respectively arranged on the support feet, with a buffer part arranged between the first baffle and the second baffle; the buffer part includes a return spring sleeved on the detection rod, one end of the return spring abutting against the second baffle, and the other end abutting against the retaining ring of the detection rod, with the end of the detection rod passing through the second baffle; a cutter start / stop switch is arranged behind the second baffle.

2. The adaptive lawnmower head as described in claim 1, characterized in that: The buffer section also includes a force adjustment mechanism, which includes a pressure member for adjusting the length of the return spring.

3. The adaptive lawnmower head as described in claim 2, characterized in that: The pressing component includes a C-shaped component that cooperates with the detection rod and a plurality of first positioning holes equally spaced on the support foot. The two ends of the C-shaped component are provided with second positioning holes corresponding to the first positioning holes.

4. The adaptive greening lawn mower head as described in claim 2, characterized in that: The pressure member includes a threaded section on the detection rod and a nut on the threaded section.

5. The adaptive lawnmower head as described in claim 1, characterized in that: The cutter start / stop switch is a remote control switch.

6. The adaptive lawnmower head as described in claim 1, characterized in that: The front end of the support leg is raised upwards.

7. The adaptive greening lawn mower head as described in claim 1, characterized in that: The cutter is located below the detection rod.

8. The adaptive lawnmower head as described in claim 1, characterized in that: A retraction limit ring is provided on the detection rod in front of the first baffle.

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