A highway median strip weeding device
By designing a combined structure of mounting brackets and cutting components, the problem of blind spots in the trimming of lawns within the fence holes of the isolation belt weeding device was solved, achieving thorough trimming of the lawn within the isolation belt and improving weeding efficiency.
Patent Information
- Application Number
- CN202520996750.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-20
AI Technical Summary
The existing weeding devices for highway medians have blind spots in the trimming between guardrail holes, resulting in incomplete lawn trimming.
A weeding device for highway median strips was designed, which adopts a combination structure of mounting frame and cutting parts. The mounting frame is pushed out along the extension direction of the median strip by the driving mechanism, ensuring that the trimming range of the cutting parts overlaps and avoiding blind spots in trimming.
It enables thorough mowing of the lawn within the isolation zone, avoiding the problem of incomplete mowing and improving weed control efficiency.
Smart Images

Figure CN224670364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of highway maintenance technology, and in particular, to a weeding device for highway median strips. Background Technology
[0002] Highway medians are strip-shaped structures installed longitudinally along roads to separate opposing or unidirectional traffic flows and reduce the risk of traffic accidents. They can take the form of green belts, guardrails, and hard barriers, serving multiple functions such as collision prevention, warning, and traffic guidance. They can also include auxiliary facilities such as signs and streetlights. Some medians also incorporate greenery to beautify the environment.
[0003] Currently, Chinese patent CN211745360U discloses a weeding device for highway medians, including a movable body with a horizontally swingable blade mounted on it. In use, the blade passes through holes in the guardrail, then trims the lawn within a fan-shaped area. However, some guardrail holes are spaced apart, creating blind spots in the two fan-shaped trimming areas centered on adjacent holes, resulting in incomplete lawn trimming. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a weeding device for highway median strips.
[0005] The objective of this utility model is achieved through the following technical solution: A weeding device for highway median strips includes a mobile container, an installation plate on the side wall of the mobile container, an installation frame slidably mounted on the installation plate along the traveling direction of the mobile container, a cutting component on the installation frame, and a driving mechanism on the installation plate that can drive the installation frame to be pushed out.
[0006] Preferably, the cutting element includes a rotating blade and a drive unit for driving the rotating blade to rotate.
[0007] Preferably, the mounting plate is provided with a slide, and the mounting bracket is slidably adapted to the slide.
[0008] Preferably, the mounting bracket includes a first vertical rod, a mounting horizontal rod, and a second vertical rod connected in sequence. The cutting element is disposed on the mounting horizontal rod. There are two slide blocks opposite each other on the mounting plate. The first vertical rod and the second vertical rod are slidably adapted to the two slide blocks respectively.
[0009] Preferably, there are two opposing mounting brackets, and the two mounting brackets are adapted to be ejected in opposite directions.
[0010] Preferably, an installation shaft is rotatably provided on the side wall of the movable compartment, and the installation plate is eccentrically connected to the installation shaft.
[0011] Preferably, the driving mechanism includes a driving gear rotatably mounted on the mounting plate, and each mounting bracket is provided with a driving rack, with two driving racks respectively meshing on both sides of the driving gear.
[0012] Preferably, the mounting shaft is rotated by a motor.
[0013] The beneficial effects of this utility model are as follows: the mounting plate is passed through the hole in the fence, and then the drive mechanism can drive the mounting frame to extend, allowing the cutting component to trim the lawn within the isolation zone in the direction of the mounting frame's extension. Compared with the prior art, the mounting frame of this utility model extends along the extension direction of the isolation zone. Therefore, when this utility model extends into adjacent holes in the fence and drives the mounting frame to extend for trimming, the trimming range of the cutting component will overlap or intersect, reducing the likelihood of blind spots or incomplete lawn trimming. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 for Figure 1 Enlarged view of part A; Figure 3 This is a front view structural diagram of an embodiment.
[0015] Reference numerals: 1. Movable body; 2. Mounting plate; 3. Mounting frame; 4. Cutting component; 5. Drive mechanism; 6. Rotating blade; 8. Slide; 9. First vertical rod; 10. Mounting crossbar; 11. Second vertical rod; 12. Mounting shaft; 13. Drive gear; 14. Drive rack; 15. Isolation strip; 16. Guardrail; 17. Hole. Detailed Implementation
[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. 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 are within the protection scope of this utility model.
[0017] like Figure 1 , Figure 2 , Figure 3As shown, a weeding device for highway median strips includes a movable body 1. For example, the bottom of the movable body 1 may be equipped with wheels, allowing the body 1 to move along the median strip 15 and guardrail 16. A mounting plate 2 is also provided on the side wall of the movable body 1, and a mounting frame 3 is slidably mounted on the mounting plate 2. Furthermore, a drive mechanism 5 is provided on the mounting plate 2 to push the side of the mounting plate 2 away from the mounting frame 3.
[0018] The mounting frame 3 is specifically adapted to be able to extend along the traveling direction of the moving body 1, and the mounting frame 3 is also equipped with a cutting element 4. During weeding operations, the mounting plate 2 can be inserted into the hole 17 of the guardrail 16, and then the mounting frame 3 is pushed out by the drive mechanism 5. During this time, the cutting element 4 can trim the lawn in the isolation zone 15. After the lawn at the current hole 17 is trimmed, the moving body 1 can be pushed and the mounting plate 2 can be inserted into the hole 17 of the next guardrail 16. This process is repeated until the lawn in the entire isolation zone 15 is trimmed.
[0019] In some embodiments, the mounting bracket 3 includes a first vertical rod 9, a mounting crossbar 10, and a second vertical rod 11 connected in sequence, which makes the mounting bracket 3 U-shaped in cross-section. The aforementioned cutting element 4 is disposed on the mounting crossbar 10. In addition, two slide blocks 8 are disposed opposite each other on the end face of the mounting plate 2, and the first vertical rod 9 and the second vertical rod 11 are slidably adapted to the two slide blocks 8 respectively.
[0020] For example, the cutting element 4 may preferably include a rotating blade 6 and a drive unit for driving the rotating blade 6 to rotate. In a preferred example, the drive unit may be a motor connected to the rotating blade 6. Furthermore, several rotating blades 6 may be evenly distributed along the mounting crossbar 10.
[0021] When the mounting bracket 3 is extended, several rotating blades 6 work together to trim the lawn in the direction of extension more thoroughly.
[0022] In a more preferred example, there are two mounting brackets 3 facing each other on the mounting plate 2, and the two mounting brackets 3 are adapted to be able to push out in opposite directions. In this case, after the weeding device of the present invention is inserted into the hole 17 of the guardrail 16, the two mounting brackets 3 cooperate to trim the lawn in both the front and rear directions, which will shorten the required push-out stroke of the mounting bracket 3, because in the example with only one mounting bracket 3, a larger forward push-out stroke of a single mounting bracket 3 may be required.
[0023] In the two examples of mounting bracket 3, the drive mechanism 5 preferably includes a drive gear 13 rotatably mounted on the mounting plate 2, and each mounting bracket 3 is provided with a drive rack 14, with the two drive racks 14 meshing on both sides of the drive gear 13. For example, when the drive gear 13 rotates under the drive of the motor, the two drive racks 14 will drive the two mounting brackets 3 and the corresponding cutting pieces 4 to be pushed out in opposite directions, thereby realizing the simultaneous trimming of the lawn in both the front and rear directions.
[0024] In some embodiments, a mounting shaft 12 is rotatably mounted on the side wall of the movable housing 1, and the mounting plate 2 is eccentrically connected to the mounting shaft 12. For example, the rotation of the mounting shaft 12 can also be achieved by driving a motor. It is conceivable that when the eccentric mounting plate 2 is inserted into the hole 17 of the guardrail 16, rotating the mounting shaft 12 will rotate the mounting plate 2 to the lowest trimming position closest to the ground, thereby achieving maximum lawn trimming. Of course, different cutting heights of the lawn by the cutting element 4 can also be selected by controlling different rotation angles of the mounting shaft 12.
[0025] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.
Claims
1. A weeding device for highway median strips, comprising a mobile container (1), characterized in that: The side wall of the mobile compartment (1) is provided with an installation plate (2), and an installation frame (3) is slidably provided on the installation plate (2) along the walking direction of the mobile compartment (1). A cutting piece (4) is provided on the installation frame (3), and a driving mechanism (5) is also provided on the installation plate (2). The driving mechanism (5) can drive the installation frame (3) to be pushed out.
2. The weeding device for highway median strips according to claim 1, characterized in that: The cutting component (4) includes a rotating blade (6) and a drive unit for driving the rotating blade (6) to rotate.
3. The weeding device for highway median strips according to claim 1, characterized in that: The mounting plate (2) is provided with a slide (8), and the mounting bracket (3) is slidably adapted to the slide (8).
4. The highway median strip weeding device according to claim 3, characterized in that: The mounting bracket (3) includes a first vertical rod (9), a mounting crossbar (10) and a second vertical rod (11) connected in sequence. The cutting piece (4) is disposed on the mounting crossbar (10). There are two slide blocks (8) on the mounting plate (2). The first vertical rod (9) and the second vertical rod (11) are respectively slidably adapted to the two slide blocks (8).
5. The highway median strip weeding device according to any one of claims 1-4, characterized in that: There are two opposing mounting brackets (3), and the two mounting brackets (3) are adapted to be ejected from opposite directions.
6. The highway median strip weeding device according to any one of claims 1-4, characterized in that: An installation shaft (12) is rotatably mounted on the side wall of the movable compartment (1), and the installation plate (2) is eccentrically connected to the installation shaft (12).
7. The weeding device for highway median strips according to claim 5, characterized in that: The drive mechanism (5) includes a drive gear (13) rotatably mounted on the mounting plate (2), and each mounting bracket (3) is provided with a drive rack (14), with the two drive racks (14) respectively meshing on both sides of the drive gear (13).
8. The highway median strip weeding device according to claim 6, characterized in that: The mounting shaft (12) is driven to rotate by a motor.
Citation Information
Patent Citations
Weeding device for road isolation belt
CN211745360U