A highway median strip vegetation maintenance device

Abstract

The application discloses a kind of highway subzone vegetation maintenance device, comprising: walking mechanism, walking mechanism includes portal frame, portal frame includes two vertical arrangement's column and the crossbeam connected between two columns;Pruning mechanism, pruning mechanism includes the horizontal pruning part connected to the lower end of crossbeam, branch and leaf collecting part connected to column and lateral pruning part;Irrigation mechanism, irrigation mechanism includes the water storage tank located in the front and back side of column, and the water storage tank is connected with several pressure-compensating emitters by communication pipe;Set at the starting point or end point of walking mechanism Auxiliary mechanism, auxiliary mechanism includes water storage pool, and the upper end of water storage pool is provided with branch and leaf storage box.The present application can realize accurate maintenance and efficient irrigation to central median strip green, not only can improve the safety, work efficiency and operation quality of green maintenance, reduce labor cost, but also can realize water saving and environmental protection, provide strong support for highway greening and ecological environmental protection.

Description

Technical Field

[0001] This invention relates to the technical field of highway vegetation maintenance, and more specifically, to a highway median strip vegetation maintenance device. Background Technology

[0002] With the rapid development of my country's expressway network, greening the central median strip has become an important measure to enhance road landscape, ensure driving safety, and improve the ecological environment. However, the maintenance and irrigation of the central median strip faces a series of challenges:

[0003] 1. Irrigation Challenges: Traditional irrigation methods, such as water trucks and manual flooding, are not only labor-intensive and costly, but also inefficient, easily leading to water waste. Furthermore, these methods may obstruct traffic flow and even pose safety hazards during irrigation.

[0004] 2. Maintenance Difficulty: The maintenance of greenery in the central median strip is labor-intensive, especially in sections with high traffic volume and high safety risks. Manual maintenance is not only inefficient but also poses significant safety risks. Furthermore, the limited space in the central median strip restricts mechanized operations, resulting in high maintenance costs and difficulty in achieving precise management.

[0005] In summary, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0006] In view of the above-mentioned technical problems in related technologies, the present invention provides a highway median vegetation maintenance device that can solve the above problems.

[0007] To achieve the above-mentioned technical objectives, the technical solution of the present invention is implemented as follows:

[0008] A median strip vegetation maintenance device for highways includes:

[0009] The traveling mechanism includes a gantry frame, which includes two vertically arranged columns and a crossbeam connecting the two columns. The bottom end of the gantry frame is provided with traveling wheels.

[0010] The pruning mechanism includes a horizontal pruning section connected to the lower end of the crossbeam, a branch and leaf collection section connected to the column, and a lateral pruning section.

[0011] An irrigation mechanism, comprising a water storage tank located on the front and rear sides of the column, wherein the water storage tank is connected to a plurality of pressure-compensating drippers via a connecting pipe, and the pressure-compensating drippers extend to the roots of the green plants via dripper supports.

[0012] An auxiliary mechanism is provided at the starting point or ending point of the walking mechanism. The auxiliary mechanism includes a water storage tank. A branch and leaf storage box is provided at the upper end of the water storage tank. The water storage tank is connected to a water supply pipe for replenishing water to the water storage box. A water injection self-locking mechanism is connected to the end of the water supply pipe. The branch and leaf storage box is provided with a branch and leaf transport pipe for recycling branches and leaves in the branch and leaf collection section.

[0013] Furthermore, the walking mechanism also includes a correction unit connected to the outer end of the column. The correction unit includes a guardrail clamping part, which is connected to the column through an elastic element. The guardrail clamping part is provided with a guardrail groove for connecting the median guardrail.

[0014] Furthermore, the leaf and branch collection section includes a temporary storage box, a lateral collection trough, and a horizontal pruning and leaf suction channel; the temporary storage box is located on the column, the lateral collection trough is located at the bottom of the lateral pruning section and communicates with the temporary storage box, the top of the horizontal pruning and leaf suction channel communicates with the horizontal pruning section, and the bottom of the horizontal pruning and leaf suction channel communicates with the temporary storage box.

[0015] Furthermore, the horizontal trimming section includes a movable component, the lower end of which is connected to an auger-type trimming blade, and the upper end of which is connected to a support frame via a second drive assembly. The support frame is installed in a second mounting groove on the crossbeam.

[0016] Furthermore, the upper end of the auger-type trimmer blade is provided with a second protective cover, and the upper end of the second protective cover is connected to a leaf suction assembly. The leaf suction end of the leaf suction assembly passes through the second protective cover and faces the auger-type trimmer blade.

[0017] Furthermore, the lateral trimming section includes a lifting frame, the upper end of which is connected to a support plate, and the inner side of the support plate is connected to a horizontal trimming mechanism. The horizontal trimming mechanism includes a drive assembly connected to the support plate, and the rotation shaft of the drive assembly is connected to a trimming component. Both the lifting frame and the support plate are installed in a first mounting groove on the inner side of the column.

[0018] Furthermore, the rotating circumferential cover of the trimmer is provided with a first protective cover, one end of which is fixedly connected to the support plate. The trimmer is a trimmer leaf or a trimmer rope.

[0019] Furthermore, the drip head supports are symmetrically installed on the inner side of the gantry frame, and the drip head supports on the same side are evenly distributed on the same straight line. A water pump is installed in the water storage tank.

[0020] Furthermore, the water injection self-locking mechanism includes, in sequence along the water flow direction, an inlet, a primary water flow pool, a secondary water flow pool, and an outlet. A floating valve is installed at the top of the primary water flow pool, and a self-locking component is installed at the top of the secondary water flow pool. The bottom of the self-locking component is located inside the secondary water flow pool, and the top of the self-locking component extends outward and is connected to a lever shaft. A blocking ball is installed at the other end of the lever shaft. The blocking ball is located in the pipe between the primary water flow pool and the secondary water flow pool. The pipe between the primary water flow pool and the secondary water flow pool also includes a reducing section, and a secondary valve is installed in the reducing section.

[0021] Furthermore, the secondary valve includes a blocking block and a flow plate. The blocking block is slidably connected to the smaller diameter section of the variable diameter section, and the flow plate is fixedly connected to the larger diameter section of the variable diameter section. The flow plate is provided with multiple flow holes, and a compression spring is provided between the blocking block and the flow plate.

[0022] The beneficial effects of this invention are as follows: This application can achieve precise maintenance and efficient irrigation of the greening of the central median strip, which can not only improve the safety, work efficiency and operation quality of greening maintenance and reduce labor costs, but also achieve water conservation and environmental protection, providing strong support for highway greening and ecological environmental protection. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of a median vegetation maintenance device for highways according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the connection between the walking mechanism and the trimming mechanism according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the lateral trimming section according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the correction unit described in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the lateral trimming section according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the horizontal trimming section according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the pressure-compensated dripper according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the water storage tank and the branch and leaf storage box according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the water-filling self-locking mechanism described in an embodiment of the present invention;

[0034] Figure 10 This is a cross-sectional view of the self-locking component described in an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the connection between the air tube and the water injection self-locking mechanism according to an embodiment of the present invention;

[0036] Figure 12 This is a schematic diagram of the structure of the auxiliary valve described in an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the upper motherboard and lower scanning plate according to an embodiment of the present invention.

[0038] In the picture:

[0039] 101. Gantry frame; 102. Crossbeam; 103. Column; 111. Traveling wheel; 112. Axle; 113. Warning light; 114. Hyperspectral camera; 115. Correction unit; 116. Elastic element; 117. Guardrail clamping part; 201. Storage box; 202. Lateral collection trough; 204. Branch and leaf output pipe; 205. Leaf suction assembly; 206. Lateral pruning part; 207. Lifting frame; 208. Support plate; 209. Support shaft; 210. Rotating shaft; 211. Pruning component; 212. First protective cover; 213. Horizontal pruning part; 214. Moving part; 215. Support frame; 216. Second protective cover; 217. Screw-type pruning blade; 301. Water storage tank; 302. Connecting pipe; 303. Drip head bracket; 304. Pressure compensation Compensating dripper; 401, water storage tank; 402, water supply pipe; 403, vertical support; 404, water injection self-locking mechanism; 405, water inlet; 406, primary water flow tank; 407, floating valve; 408, secondary valve; 4081, blocking block; 4082, flow vane; 4083, compression spring; 409, flow rate sensor; 410, secondary water flow tank; 411, self-locking component; 4111, first sliding block; 4112, second sliding block; 4113, sealing frame; 412, lever shaft; 413, blocking ball; 414, air pipe; 4141, first connection port; 4142, second connection port; 4143, third connection port; 415, water outlet; 416, branch and leaf storage box; 417, branch and leaf transport pipe; 418, upper main board; 419, lower sweeping plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0041] like Figure 1-13 As shown, the present invention discloses a road median vegetation maintenance device, including a walking mechanism, a pruning mechanism, an irrigation mechanism, and an auxiliary mechanism.

[0042] The walking mechanism in this application includes a gantry frame 101, with walking wheels 111 installed at the bottom of the gantry frame 101. The gantry frame 101 is used to cover the outside of the green plants. The gantry frame 101 includes two vertically arranged columns 103 and a crossbeam 102 connecting the two columns 103.

[0043] The traveling wheels 111 described in this application are located at the bottom of the gantry frame 101. In one specific embodiment, four sets of traveling wheels 111 are provided, each set including four wheels and two axles 112. Each set of traveling wheels 111 is controlled by a servo motor for movement and steering. The servo motor precisely controls the direction, distance, and speed of travel, ensuring that the traveling mechanism can move stably and efficiently, and improving its working efficiency and operational accuracy.

[0044] In a specific embodiment, such as Figure 2 , Figure 4 As shown, the walking mechanism described in this application further includes a correction unit 115. The correction unit 115 includes an elastic element 116 and a guardrail clamping part 117. The elastic element 116 is connected between the guardrail clamping part 117 and the column 103. The guardrail clamping part 117 is used to connect with the median strip guardrail and slide along the median strip guardrail. When the walking mechanism cannot walk according to the predetermined route or there is an error in the travel, the movement path is restricted by the guardrail clamping part 117. It should be noted that a correction unit 115 is provided on the outside of each column 103, and the elastic element 116 is a high-strength spring.

[0045] In one specific embodiment, warning lights 113 are provided on both the front and rear sides of the gantry frame 101. The warning lights 113 are used to flash to warn and remind passing vehicles and personnel when the device is working.

[0046] In one specific embodiment, a hyperspectral camera 114 is installed on the column 103. The hyperspectral camera 114 is used to acquire information on pests and diseases of vegetation along the route and to monitor excessively growing branches and leaves, and to send the information to the terminal.

[0047] The pruning mechanism in this application includes a leaf and branch collection section, a lateral pruning section 206, and a horizontal pruning section 213. The lateral pruning section 206 is located inside the column 103 and is used to prune the sides of the plant. The horizontal pruning section 213 is located at the lower end of the crossbeam 102 and is used to prune the top of the plant. The leaf and branch collection section is used to collect the pruned leaves. In a specific embodiment, such as... Figure 3 and Figure 5 As shown, the leaf and branch collection section includes a temporary storage box 201, a lateral collection trough 202, and a horizontal pruning leaf suction channel. The temporary storage box 201 is mounted on the column 103 and is used to store fallen leaves and branches. The lateral collection trough 202 is located at the bottom of the lateral pruning section 206 and is used to collect the leaves and branches pruned by the lateral pruning section 206. The horizontal pruning leaf suction channel communicates with the horizontal pruning section 213 and is used to transport the leaves and branches pruned by the horizontal pruning section 213.

[0048] It should be noted that a leaf suction component 205 is provided at the horizontal pruning section 213. The leaf suction component 205 is used to draw the pruned branches and leaves into the horizontal pruning leaf suction channel.

[0049] The lateral collection trough 202 of this application is located on the side of the temporary storage box 201 and is connected to the temporary storage box 201. The top of the horizontal trimming leaf suction channel is the leaf inlet, which is connected to the horizontal trimming section 213, and the bottom of the horizontal trimming leaf suction channel is connected to the temporary storage box 201.

[0050] It should be noted that the upper opening of the side collection trough 202 is connected to the bottom of the temporary storage box 201.

[0051] In a specific embodiment, such as Figure 5 As shown, the lateral pruning unit 206 includes a lifting frame 207, a support plate 208, a support shaft 209, a rotating shaft 210, and a pruning component 211. A first mounting groove is provided on the inner side of the column 103. The lifting frame 207 and the support plate 208 are both installed in the first mounting groove. The top of the lifting frame 207 is fixedly connected to the bottom of the support plate 208. The lifting frame 207 controls the support plate 208 to move up and down, thereby controlling the lateral pruning unit 206 to prune plants of different heights. A drive assembly for driving the rotating shaft 210 is provided on the inner end of the support plate 208. The support shaft 209 is provided on the inner side of the drive assembly, and the rotating shaft 210 is inserted into the support shaft 209. The pruning component 211 is provided at the end of the rotating shaft 210. The rotating shaft 210 controls the pruning component 211 to rotate and prune. It should be noted that the pruning component 211 is a pruning leaf or a pruning rope.

[0052] In one specific embodiment, a first protective cover 212 is provided around the rotating circumference of the pruning member 211, and one end of the first protective cover 212 is fixedly connected to the support plate 208. The first protective cover 212 is used to catch the branches and leaves that are thrown away by the centrifugal force generated by the pruning member 211 during operation, and to make the branches and leaves fall into the lateral collection groove 202. At the same time, it can also protect against rain and extend the service life of the device.

[0053] In a specific embodiment, such as Figure 2 and Figure 6As shown, the horizontal pruning section 213 includes a movable component 214, a support frame 215, and an auger-type pruning blade 217. A second mounting groove is provided on the bottom surface of the crossbeam 102. The top of the support frame 215 is fixedly connected to the second mounting groove, and the arrangement direction of the support frame 215 is the same as that of the crossbeam 102. The movable component 214 is connected to the bottom of the support frame 215 via a second drive assembly, and the bottom of the movable component 214 is connected to the auger-type pruning blade 217. The movable component 214 can move along the arrangement direction of the support frame 215 (driven by the second drive assembly), thereby controlling the auger-type pruning blade 217 to reciprocate horizontally to prune the top of the green plants. The auger-type pruning blade 217 can trim excess branches and leaves above the green plants into smaller fragments, which helps the leaf-absorbing assembly 205 to suck in and collect the leaves. A second protective cover 216 is installed on the upper end of the auger-type trimmer blade 217. The second protective cover 216 is used to stop the blades that are thrown out during the trimming process.

[0054] The irrigation mechanism of this application includes a water storage tank 301, a connecting pipe 302, a pressure-compensating dripper 304, and a dripper bracket 303. The connecting pipe 302 is used to transport water from the water storage tank 301 to the pressure-compensating dripper 304. Multiple dripper brackets 303 are arranged on the inner side of the gantry frame 101, with the end of each dripper bracket 303 extending to the roots of the plant. A pressure-compensating dripper 304 is installed at the end of each dripper bracket 303. Through this irrigation mechanism, the device irrigates the plant during the pruning process. The dripper brackets 303 are symmetrically installed on the inner side of the gantry frame 101, with the dripper brackets 303 on the same side evenly distributed along the same straight line.

[0055] In one specific embodiment, multiple water storage tanks 301 can be installed on the gantry frame 101, and the multiple water storage tanks 301 are symmetrically arranged to store the water required for drip irrigation. A water pump is installed inside the water storage tank 301 to ensure the working pressure of the pressure-compensated drippers.

[0056] The auxiliary mechanism of this application is located at the starting or ending point of the walking mechanism, and includes a water storage tank 401, a branch and leaf storage box 416, and a control unit, such as... Figure 1 As shown, a water supply pipe 402 is connected to the water storage tank 401, and a branch and leaf transport pipe 417 is connected to the branch and leaf storage box 416. When the walking mechanism moves to the auxiliary mechanism, the water storage tank 401 is connected to the water storage tank 301 through the water supply pipe 402. At this time, the branches and leaves in the temporary storage box 201 are connected to the branch and leaf storage box 416 through the branch and leaf transport pipe 417, and the branches and leaves are discharged into the branch and leaf storage box 416 for unified processing.

[0057] In one specific embodiment, a water pump is installed between the water storage tank 401 and the water supply pipe 402; the water pump is used to replenish the water storage tank 301 of the gantry frame 101. The end of the water supply pipe 402 is connected to a water injection self-locking mechanism 404, and a vertical support 403 is installed at the bottom of the water supply pipe 402 for fixation. The water injection self-locking mechanism 404 is communicatively connected to the control unit.

[0058] The water injection self-locking mechanism 404 includes, in sequence along the water flow direction, an inlet 405, a primary water flow tank 406, a secondary water flow tank 410, and an outlet 415. A float valve 407 is installed at the top of the primary water flow tank 406. When the water pump is turned on to supply water, the water flow in the pipe gradually increases. When the water flow in the pipe reaches a predetermined height, the float valve 407 lifts, allowing water to flow through. After the water supply is completed and the water pump is turned off, the water flow height in the pipe decreases, and the float valve 407 lowers accordingly, thereby closing the primary water flow tank 406 and preventing the water in the pipe before the primary water flow tank 406 from continuing to flow out.

[0059] like Figure 9 As shown, a self-locking component 411 is installed at the top of the secondary water flow tank 410. The bottom of the self-locking component 411 is located inside the secondary water flow tank 410, and the top of the self-locking component 411 extends outward and is connected to a lever shaft 412. A blocking ball 413 is installed at the other end of the lever shaft 412, and the blocking ball 413 is located in the pipe between the primary water flow tank 406 and the secondary water flow tank 410. A support rod is installed in the middle of the lever shaft 412. When the water level in the secondary water flow tank 410 rises, the blocking ball 413 is lowered by the lever shaft 412 to close the pipe between the primary water flow tank 406 and the secondary water flow tank 410.

[0060] The pipeline between the primary flow tank 406 and the secondary flow tank 410 also includes a reducing section, and a secondary valve 408 is installed inside the reducing pipe, such as... Figure 12 As shown, the secondary valve 408 includes a blocking block 4081 and a flow vane 4082. The blocking block 4081 is slidably connected to the smaller diameter section of the reducing section, and the flow vane 4082 is fixedly connected to the larger diameter section of the reducing section. The flow vane 4082 has multiple flow holes. Under normal conditions, under the force of the compression spring 4083, the blocking block 4081 is pressed towards the smaller diameter end, thus closing the pipe between the primary water flow tank 406 and the secondary water flow tank 410. When the water pressure in the primary water flow tank 406 is greater than the pressure of the compression spring 4083, the blocking block 4081 moves towards the larger diameter end, and water flows out through the flow vane 4082.

[0061] In one specific embodiment, a flow velocity sensor 409 is installed in the pipeline between the primary water flow pool and the secondary valve 408. The flow velocity sensor 409 is communicatively connected to the control unit, and the control unit controls the start and stop of the water pump based on the flow velocity obtained by the flow velocity sensor 409.

[0062] Specifically, when the flow rate is less than the predetermined value, the control unit controls the water pump to stop supplying water.

[0063] An air pipe 414 is provided outside the water injection self-locking mechanism 404, such as... Figure 11 As shown, the air pipe 414 includes a first connection port 4141, a second connection port 4142 and a third connection port 4143. The first connection port 4141 is connected to the water outlet 415, the second connection port 4142 is connected to the top of the secondary water flow pool 410, and the third connection port 4143 is connected to the pipeline where the auxiliary valve 408 is located.

[0064] The top of the secondary water flow pool 410 is provided with an opening. The self-locking component 411 includes a first sliding block 4111 disposed in the opening. The top of the first sliding block 4111 is connected to the lever shaft 412. A sealing frame is provided below the opening. A second connecting port is connected to the sealing frame 4113. A second sliding block 4112 is provided at the bottom of the sealing frame. The first sliding block 4111 and the second sliding block 4112 are coaxially arranged.

[0065] When water is supplied to the water storage tank 301, when the water flow in the pipe reaches the predetermined pressure, the pressure spring 4083 is compressed, and the block block 4081 moves to the outlet 415 side, and the water flow can be supplied normally through the pipeline where the auxiliary valve 408 is located.

[0066] When water supply is completed, the water level at outlet 415 increases. Through the air pipe 414, the first connection port 4141 is sealed. Under the Venturi effect, a negative pressure is formed within the sealing frame 4113 connected to the second connection port. The second sliding block 4112 slides upwards, pushing against the first sliding block 4111. The first sliding block 4111 lifts one end of the lever shaft 412, causing the blocking ball 413 at the other end of the lever shaft to fall, reducing the flow velocity in the pipe. When the flow rate sensor 409 detects that the water flow is less than a predetermined value, the water pump is turned off. This ensures that when the water level in the storage tank 301 rises to the predetermined height, the pump automatically shuts off, preventing water from overflowing from the storage tank 301, thus achieving self-locking of the pipeline.

[0067] It should be noted that the branch and leaf storage box 416 is installed above the water storage tank 401 so that the branch and leaf storage box 416 is exposed on the ground. Therefore, the branch and leaf storage box 416 can be opened from the top, making it convenient to clean up the collected branches and leaves.

[0068] The leaf and branch transport pipes 417 are symmetrically installed on the front surface of the leaf and branch storage box 416, and are inclined upward, so that the leaves can slide directly into the leaf and branch storage box 416.

[0069] A branch and leaf output pipe 204 is provided on the temporary storage box 201. The inlet of the branch and leaf transport pipe 417 is larger than the outlet of the branch and leaf output pipe 204 to facilitate smooth connection of the pipe.

[0070] like Figure 13 As shown, the branch and leaf storage box 416 is equipped with an upper main board 418 and a lower sweeping plate 419. The upper main board 418 is rotatably connected to the branch and leaf storage box 416, and the lower sweeping plate 419 is provided at the lower end of the upper main board 418.

[0071] The lower sweeping plate 419 is installed inside the upper main board 418. Under normal conditions, the lower sweeping plate 419 is at its lowest point to prevent debris from entering the branch and leaf storage box 416 through the branch and leaf transport pipe 417.

[0072] When the leaves enter through the leaf output pipe 204, the lower sweeping plate 419 retracts, and after a certain period of time, the upper main plate 418 begins to rotate to ensure that the leaves at the entrance smoothly enter the leaf storage box 416.

[0073] In summary, this application employs automation, information technology, and intelligent technologies to improve maintenance efficiency, reduce labor costs and accident rates, and ensure the healthy growth of green belts. It enables precise maintenance and efficient irrigation of central median strip greenery. This not only improves the safety, efficiency, and quality of greening maintenance and reduces labor costs, but also achieves water conservation and environmental protection, providing strong support for highway greening and ecological conservation.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vegetation maintenance device for highway median strips, characterized in that, include: The traveling mechanism includes a gantry frame (101), which includes two vertically arranged columns (103) and a crossbeam (102) connecting the two columns (103). The bottom end of the gantry frame (101) is provided with a traveling wheel (111). The pruning mechanism includes a horizontal pruning section (213) connected to the lower end of the crossbeam (102), a branch and leaf collection section connected to the column (103), and a lateral pruning section (206). An irrigation mechanism, comprising a water storage tank (301) located on the front and rear sides of the column (103), wherein the water storage tank (301) is connected to a plurality of pressure-compensating drippers (304) via a connecting pipe (302), and the pressure-compensating drippers (304) extend to the roots of the green plants via dripper brackets (303). An auxiliary mechanism is provided at the starting point or ending point of the walking mechanism. The auxiliary mechanism includes a water storage tank (401), a branch and leaf storage box (416) is provided at the upper end of the water storage tank (401), a water supply pipe (402) for replenishing water to the water storage tank (301) is connected to the water storage tank (401), a water injection self-locking mechanism (404) is connected to the end of the water supply pipe (402), and a branch and leaf storage box (416) is provided with a branch and leaf transport pipe (417) for recycling branches and leaves in the branch and leaf collection section. The walking mechanism also includes a correction unit (115) connected to the outer end of the column (103). The correction unit (115) includes a guardrail clamping part (117). The guardrail clamping part (117) is connected to the column (103) through an elastic element (116). The guardrail clamping part (117) is provided with a guardrail groove for connecting the median guardrail. The water injection self-locking mechanism (404) includes, in sequence along the water flow direction, an inlet (405), a primary water flow pool (406), a secondary water flow pool (410), and an outlet (415). A floating valve (407) is provided at the top of the primary water flow pool (406), and a self-locking component (411) is provided at the top of the secondary water flow pool (410). The bottom of the self-locking component (411) is located inside the secondary water flow pool (410), and the top of the self-locking component (411) extends outward and is connected to a lever shaft (412). A blocking ball (413) is provided at the other end of the lever shaft (412). The blocking ball (413) is located in the pipe between the primary water flow pool (406) and the secondary water flow pool (410). The pipe between the primary water flow pool (406) and the secondary water flow pool (410) also includes a variable diameter section, and a secondary valve (408) is provided in the pipe of the variable diameter section. The secondary valve (408) includes a blocking block (4081) and a flow plate (4082). The blocking block (4081) is slidably connected to the small diameter section of the variable diameter section, and the flow plate (4082) is fixedly connected to the large diameter section of the variable diameter section. The flow plate (4082) is provided with multiple flow holes, and a compression spring (4083) is provided between the blocking block (4081) and the flow plate (4082).

2. The highway median vegetation maintenance device according to claim 1, characterized in that, The leaf collection section includes a temporary storage box (201), a lateral collection trough (202), and a horizontal pruning leaf suction channel; the temporary storage box (201) is located on the column (103), the lateral collection trough (202) is located at the bottom of the lateral pruning section (206) and communicates with the temporary storage box (201), the top of the horizontal pruning leaf suction channel communicates with the horizontal pruning section (213), and the bottom of the horizontal pruning leaf suction channel communicates with the temporary storage box (201).

3. A highway median strip vegetation maintenance device according to claim 2, characterized in that, The horizontal trimming section (213) includes a movable part (214), the lower end of which is connected to an auger-type trimming blade (217), and the upper end of which is connected to a support frame (215) via a drive assembly. The support frame (215) is installed in a second mounting groove on the crossbeam (102).

4. A highway median vegetation maintenance device according to claim 3, characterized in that, The upper end of the auger-type trimmer blade (217) is provided with a second protective cover (216), and the upper end of the second protective cover (216) is connected to a leaf suction assembly (205). The leaf suction end of the leaf suction assembly (205) passes through the second protective cover (216) and faces the auger-type trimmer blade (217).

5. A highway median strip vegetation maintenance device according to claim 4, characterized in that, The lateral trimming section (206) includes a lifting frame (207), the upper end of which is connected to a support plate (208). The inner side of the support plate (208) is connected to a horizontal trimming mechanism. The horizontal trimming mechanism includes a drive assembly connected to the support plate (208). The rotation shaft (210) of the drive assembly is connected to a trimming component (211). The lifting frame (207) and the support plate (208) are both installed in the first mounting groove inside the column.

6. A highway median strip vegetation maintenance device according to claim 5, characterized in that, The rotator side of the trimmer (211) is provided with a first protective cover (212), one end of the first protective cover (212) is fixedly connected to the support plate (208), and the trimmer (211) is a trimmer leaf or a trimmer rope.

7. A highway median strip vegetation maintenance device according to claim 1, characterized in that, The drip head brackets (303) are symmetrically installed on the inner side of the gantry frame (101), and the drip head brackets (303) on the same side are evenly distributed on the same straight line. A water pump is installed in the water storage tank (301).

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