Greening maintenance equipment based on municipal engineering

Abstract

The invention relates to the technical field of hedge trimming, and discloses municipal engineering-based greening maintenance equipment, which comprises a trimming shell and a hanging piece, a plurality of trimming cutters are mounted in the trimming shell, and a synchronous adjusting assembly for adjusting the distance between the lateral trimming cutters is arranged in the trimming shell; by introducing the movement of the driving block and combining the abutting design of the inclined block, the driven blocks on the two sides can drive the trimming knives to move, so that the distance between the trimming knives is adjusted, and by means of the synchronous adjusting assembly, the traditional principle of manual hedge trimming can be followed, namely more trimming is conducted on the upper portion and less trimming is conducted on the two sides; the trimming force and angle can be accurately adjusted according to the height and width of the hedge, it is ensured that the trimming effect is more uniform and natural, in addition, the supporting plate can drive the telescopic bag to contract or expand in the moving process, the negative pressure is changed in a self-adaptive mode, and the negative pressure is adjusted in a self-adaptive mode according to the trimming force.

Description

Technical Field

[0001] The invention relates to the technical field of hedge trimming, in particular to a greening maintenance device based on municipal engineering. Background Art

[0002] Greening maintenance equipment is an important equipment in municipal greening maintenance. It is specially designed for pruning hedges and can significantly improve the level of refined management of road greening.

[0003] However, there are still some problems with the existing greening maintenance equipment:

[0004] First, the original intention of designing automated greening maintenance equipment is to improve efficiency and reduce labor costs. However, the current vehicle-based equipment equipped with a frame structure ignores the traditional principle of manual hedge trimming, that is, more trimming on the top and less trimming on the sides. Since the spacing of the cutters in the frame design is fixed, this leads to uneven overall shape and density of the hedge, affecting the appearance and ecological function. For example, excessive trimming of the top will cause the top of the hedge to be too sparse, while the sides will be too dense, which not only destroys the natural form of the hedge, but also affects its ecological benefits such as shading and sound insulation. Secondly, for hedges of different heights and widths, fixed trimming equipment cannot accurately adjust the trimming force and angle, resulting in poor trimming results and even damage to green plants.

[0005] In addition, different types of hedges have different requirements for the amount of negative pressure needed for pruning, and the existing automated equipment has not fully considered this in its design. Since it is impossible to adaptively adjust parameters according to the pruning intensity, operators often need to select a fixed parameter for operation, which leads to improper negative pressure setting during the pruning process, thereby causing energy waste. For example, for hedges that require a larger negative pressure, if the negative pressure provided by the equipment is insufficient, repeated pruning is required, increasing energy consumption; conversely, if the negative pressure is too large, it will lead to over-pruning, which also causes energy waste and is very likely to damage the hedge.

[0006] Secondly, existing greening maintenance equipment usually uses two brushes in opposite directions and a small negative pressure mechanism to try to collect the pruned branches. Although this design can sweep most of the branches into the negative pressure mechanism to a certain extent, some branches will still be scattered by the brush and cannot be absorbed. If these scattered branches fall inside the hedge, they will naturally decompose into nutrients, which will help the growth of the hedge. However, if these branches fall on the road, additional manpower or equipment will be required for cleaning, which increases maintenance costs. In addition, the efficiency and effect of this collection method are affected by many factors, including the hardness and humidity of the branches, and the force of pruning. Branches with greater hardness are not easily swept by the brush, and changes in humidity will also affect the absorption effect of the negative pressure mechanism. If the force of pruning is too great, the branches will be more scattered, increasing the difficulty of collection.

[0007] To this end, the present invention proposes a greening maintenance device based on municipal engineering. Summary of the invention

[0008] The purpose of the present invention is to provide a greening maintenance device based on municipal engineering to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a greening maintenance equipment based on municipal engineering, used for changing the distance of side cutting tools and improving the cleaning effect of branches and leaves, including a pruning shell and a mounting part, a plurality of pruning knives are installed inside the pruning shell, and a synchronous adjustment component for adjusting the spacing between the side pruning knives is arranged inside the pruning shell, and the synchronous adjustment component includes an active block and two driven blocks for adjusting the distance between the side pruning knives and a telescopic bag for adaptively adjusting the size of negative pressure, the active block is slidably connected to the inner wall of the pruning shell, the driven blocks are slidably connected to the side wall of the active block, and the telescopic bag is arranged inside the pruning shell.

[0010] Preferably, the synchronous adjustment assembly also includes a cylinder, which is fixedly connected to the inner wall of the trimming shell, and the output shaft of the cylinder is fixedly connected to the top of the active block, and the outer surface of each of the driven blocks is fixedly connected to a support plate, the trimming knives located on both sides are rotatably connected to the inside of the support plate, and the trimming knives located above penetrate and are rotatably connected to the top of the trimming shell.

[0011] Preferably, the outer surface of the support plate is fixedly connected to a folding rod, the top inner wall of the trimming shell is provided with straight grooves arranged in a circular shape and at equal intervals, the top inner wall of the trimming shell is rotatably connected to a turntable, the turntable penetrates the surface and is provided with a plurality of curved grooves arranged in a circular shape and at equal intervals, a fixed shaft is slidably connected inside each of the straight grooves and the curved groove, and the sides of the fixed shafts that are close to each other are fixedly connected to the outer surface of the telescopic bag.

[0012] Preferably, a composite collection assembly for recycling residual branches and leaves on the roadside is provided on the outside of the pruning shell, and the composite collection assembly includes a mounting box installed on the outer surface of the mounting part, the interior of the mounting box is fixedly connected to the collection shell, a double-headed rotating plate is provided on the side wall of the collection shell, and the inner surface of the mounting box is rotatably connected to a crankshaft.

[0013] Preferably, the composite collection assembly also includes a ring, which is rotatably connected to the outer surface of the crankshaft, and the ring is slidably connected to the inside of a double-headed rotating plate, and the end of the double-headed rotating plate away from the crankshaft is fixedly connected to a collecting plate, and the inside of the mounting box is rotatably connected to a collecting shaft, and a collecting bucket is installed inside the mounting box. The crankshaft is drivenly installed on an external motor, and the side of the collecting shaft away from the mounting box is rotatably connected to a friction ball, and the friction ball passes through the outer surface of the mounting box, and the external motor is fixedly connected to the outer surface of the collecting shell, and its output shaft passes through the collecting shell and is fixedly connected to the crankshaft.

[0014] Preferably, the active block is a trapezoid, the driven blocks are right triangles, the cylinder is electrically controlled to start and stop by an external controller, the telescopic bag is made of polyurethane, and a driving mechanism is installed on the top of the trimming shell, and the driving mechanism is electrically controlled to start and stop by an external controller.

[0015] Preferably, the driving mechanism includes a driving motor, a driving helical gear connecting rod, two matching helical gear connecting rods, two positioning shafts and two belts.

[0016] Preferably, the edge of the collecting shell on one side close to the collecting plate is chamfered, a sharp raised strip is provided on the bottom of the collecting plate away from the ring, the top of the collecting plate and the side close to the raised strip are recessed inward, a plurality of cleaning strips are fixedly connected to the surface of the collecting shaft, the cleaning strips are all made of silicone, and the side of the double-headed rotating plate away from the crankshaft is rotatably connected to the inner surface of the collecting shell.

[0017] Preferably, a moving mechanism is arranged on the side of the trimming shell, a negative pressure mechanism is arranged above the moving mechanism, and an adjusting mechanism is arranged on the outside of the negative pressure mechanism.

[0018] Preferably, the moving mechanism is a truck.

[0019] Preferably, the negative pressure mechanism includes a negative pressure box, a negative pressure pipeline and a negative pressure pump.

[0020] Preferably, the adjustment mechanism comprises a robotic arm.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By introducing the active block movement and combining the oblique block resistance design, the driven blocks on both sides can drive the pruning knives to move, thereby adjusting the spacing between the pruning knives. Through the synchronous adjustment components, not only can the traditional principle of manual hedge pruning be followed, that is, more pruning on the upper part and less pruning on the sides, but also the pruning force and angle can be accurately adjusted according to the height and width of the hedge to ensure a more uniform and natural pruning effect. In addition, the support plate will drive the telescopic bag to contract or expand during the movement, thereby adaptively changing the size of the negative pressure, thereby adaptively adjusting the negative pressure according to the size of the pruning force, avoiding energy waste and reducing over-pruning or under-pruning.

[0023] Compared with the prior art, the existing equipment adopts fixed pruning blade spacing and negative pressure settings, resulting in uneven pruning effects and energy waste, while the synchronous adjustment component can improve the accuracy and consistency of pruning by adaptively adjusting the pruning blade spacing and negative pressure size. Secondly, the existing equipment often has poor effects when dealing with hedges of different heights and widths, which can easily cause damage to green plants. The synchronous adjustment component can better adapt to diverse greening environments by accurately adjusting the pruning force, reduce damage to green plants, and improve the overall quality of greening maintenance. In addition, the existing equipment lacks flexibility in negative pressure settings, which can easily lead to energy waste and over-pruning. The synchronous adjustment component can accurately adjust according to different pruning forces by adaptively adjusting the negative pressure size, avoiding energy waste and reducing over-pruning or under-pruning.

[0024] Among them: the active block is designed as a trapezoid, and the two driven blocks are designed as right-angled triangles, which not only realizes the stable adjustment of the pruning knife spacing, but also ensures the stability and consistency during the movement;

[0025] Among them: the friction force of the oblique block effectively slows down the moving speed of the support plate, thereby slowing down the movement of the trimming knife, ensuring a smooth transition of the spacing adjustment;

[0026] Among them: since the support plate moves gradually, the telescopic bag drives the fixed axis to move gradually, and its synchronous adjustment component avoids sudden changes in negative pressure, ensuring the smooth adjustment of negative pressure during the trimming process;

[0027] 2. The design of the collection plate reciprocatingly swinging forms a trend similar to manual sweeping, and the branches can be collected into the collection shell during the reciprocating swing of the collection plate. The shape design of the collection plate, i.e., the sharp raised strip at the bottom of the side close to the collar and the inward concave part at the top, can adapt to branches of different hardness and humidity, reduce the fluctuation of the collection effect caused by the change of branch characteristics, and improve the overall collection effect;

[0028] Compared with the existing greening maintenance equipment, the reciprocating swing and shape design of the collection plate can more effectively gather branches to the collection area, reducing the scattering of branches. At the same time, compared with the existing equipment, the composite collection component can better adapt to branches of different hardness, humidity and pruning strength, improve the versatility and practicality of the equipment, and reduce the fluctuation of the collection effect caused by the change of branch characteristics. Since the equipment can collect branches more effectively, the subsequent manual cleaning work is reduced, thereby reducing the overall maintenance cost and improving the economic benefits;

[0029] Among them: the sharp raised strip design under the collection plate has a significant collection advantage for branches that are too heavy or too wet, and the raised strip can act on the branches through the sharp point, causing the branches to roll on the ground instead of being stuck or scattered. With the movement trend of the equipment itself and the resistance of the collection plate, these rolling branches can be effectively guided and collected into the collection shell, thereby improving the collection efficiency and success rate of difficult-to-handle branches;

[0030] Among them: the concave design above the collection plate provides additional collection opportunities for branches that have not been completely collected. During the movement of the equipment, these branches can slide along the surface of the collection plate to the concave side, and then be thrown into the collection shell under the swinging action of the collection plate. Therefore, the collection plate not only increases the collection tolerance rate, but also improves the adaptability to branches of different shapes and sizes, ensuring the continuity and efficiency of the collection process;

[0031] Among them: the collection shaft can play the role of secondary collection of residual branches, and the cleaning strips on its surface can effectively sweep and collect branches missed during the initial collection process, especially those small or light branches that fall on the equipment path. In addition, the collection bucket connected behind the collection shaft further ensures that these secondary collected branches can be safely stored, reducing the need for manual cleaning and improving overall work efficiency;

[0032] Among them: the friction ball is mainly used to prevent the equipment from excessively rubbing against the road shoulder during operation, thereby protecting the equipment from damage. By reducing friction, the equipment can move more smoothly, further improving the efficiency and effectiveness of collecting branches. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a frontal perspective schematic diagram of the main structure of the present invention;

[0034] Figure 2 It is a cross-sectional front view stereoscopic schematic diagram of the synchronous adjustment component of the present invention;

[0035] Figure 3 For the present invention Figure 2 A in the middle is an enlarged three-dimensional schematic diagram of the structure;

[0036] Figure 4 It is a perspective schematic diagram of a sectional bottom view of a synchronous adjustment assembly of the present invention;

[0037] Figure 5 For the present invention Figure 4 The enlarged three-dimensional schematic diagram of the structure at B in the middle;

[0038] Figure 6 It is a partially cutaway stereoscopic schematic diagram of a synchronous adjustment assembly of the present invention;

[0039] Figure 7 It is a cross-sectional perspective schematic diagram of the composite collecting assembly of the present invention;

[0040] Figure 8 For the present invention Figure 7 Enlarged three-dimensional schematic diagram of the structure at point C in the middle.

[0041] In the figure:

[0042] 11. Trimming shell; 12. Trimming knife; 13. Mounting parts;

[0043] The synchronous adjustment group includes: 21, active block; 22, cylinder; 23, driven block; 24, support plate; 25, folding rod; 26, straight groove; 27, turntable; 28, curved groove; 29, fixed shaft; 210, telescopic bag;

[0044] The composite collection assembly includes: 31, a mounting box; 32, a collection shell; 33, a double-headed rotating plate; 34, a crankshaft; 35, a sleeve ring; 36, a collection plate; 37, a collection shaft; 38, a collection bucket; 39, a friction ball. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 8The present invention provides an embodiment: a greening maintenance equipment based on municipal engineering, used for changing the distance of side cutters and improving the cleaning effect of branches and leaves, including a pruning shell 11 and a mounting part 13, a plurality of pruning knives 12 are installed inside the pruning shell 11, and a synchronous adjustment component for adjusting the spacing between the side pruning knives 12 is arranged inside the pruning shell 11, the synchronous adjustment component includes an active block 21 and two driven blocks 23 for adjusting the distance between the side pruning knives 12 and a telescopic bag 210 for adaptively adjusting the size of negative pressure, the active block 21 is slidably connected to the inner wall of the pruning shell 11, the driven blocks 23 are all slidably connected to the side walls of the active block 21, and the telescopic bag 210 is arranged inside the pruning shell 11.

[0047] The synchronous adjustment component also includes a cylinder 22, which is fixedly connected to the inner wall of the trimming shell 11, and the output shaft of the cylinder 22 is fixedly connected to the top of the active block 21. The outer surface of each driven block 23 is fixedly connected to a support plate 24, and the trimming knives 12 on both sides are rotatably connected to the inside of the support plate 24, and the trimming knives 12 located on the top are rotatably connected to the top of the trimming shell 11.

[0048] The outer surface of the support plate 24 is fixedly connected with a folding rod 25, and the top inner wall of the trimming shell 11 is provided with straight grooves 26 arranged in a circular shape and at equal intervals. A turntable 27 is rotatably connected to the top inner wall of the trimming shell 11, and the turntable 27 penetrates the surface and has a plurality of curved grooves 28 arranged in a circular shape and at equal intervals. A fixed shaft 29 is slidably connected inside each straight groove 26 and curved groove 28, and the side of the fixed shaft 29 close to each other is fixedly connected to the outer surface of the telescopic bag 210.

[0049] A composite collection component for recycling residual branches and leaves on the roadside is arranged on the outside of the pruning shell 11. The composite collection component includes a mounting box 31 installed on the outer surface of the mounting part 13. A collection shell 32 is fixedly connected to the inside of the mounting box 31. A double-headed rotating plate 33 is arranged on the side wall of the collection shell 32. The inner surface of the mounting box 31 is rotatably connected to a crankshaft 34.

[0050] The composite collection assembly also includes a collar 35, which is rotatably connected to the outer surface of the crankshaft 34, and is slidably connected to the inside of the double-headed rotating plate 33. The end of the double-headed rotating plate 33 away from the crankshaft 34 is fixedly connected to a collection plate 36, and the inside of the mounting box 31 is rotatably connected to a collection shaft 37, and a collection bucket 38 is installed inside the mounting box 31.

[0051] The active block 21 is a trapezoid, the driven blocks 23 are all right triangles, the cylinder 22 is electrically controlled to start and stop by an external controller, the telescopic bag 210 is made of polyurethane, and a driving mechanism is installed on the top of the trimming shell 11, and the driving mechanism is electrically controlled to start and stop by an external controller.

[0052] The driving mechanism includes a driving motor, an active helical gear connecting rod, two matching helical gear connecting rods, two positioning shafts and two belts. The driving motor is installed on the top of the trimming shell 11. The active helical gear connecting rod passes through the top of the trimming shell 11 and is fixedly connected to the top of the trimming knife 12 located above. The two matching helical gear connecting rods are meshed and connected to the outside of the active helical gear connecting rod. A rotating seat is symmetrically fixedly connected to the top of the trimming shell 11. The two matching helical gear connecting rods are both rotatably connected to the inside of the rotating seat. The two positioning shafts are both rotatably connected to the inner wall of the trimming shell 11. The belts are both transmission-connected between the helical gear connecting rod and the positioning shaft, and the trimming knives 12 are both slidably connected to the outer surface of the positioning shaft.

[0053] The edge of the collecting shell 32 close to the collecting plate 36 is chamfered, and a sharp raised strip is provided at the bottom of the collecting plate 36 away from the ring 35. The top of the collecting plate 36 and the side close to the raised strip are recessed inwardly. A plurality of cleaning strips are fixedly connected to the surface of the collecting shaft 37, and the cleaning strips are all made of silicone. The crankshaft 34 is drivenly installed on the external motor. The side of the collecting shaft 37 away from the mounting box 31 is rotatably connected to a friction ball 39, and the friction ball 39 passes through the outer surface of the mounting box 31. The external motor is fixedly connected to the outer surface of the collecting shell 32, and its output shaft passes through the collecting shell 32 and is fixedly connected to the crankshaft 34. The side of the double-headed rotating plate 33 away from the crankshaft 34 is rotatably connected to the inner surface of the collecting shell 32.

[0054] A moving mechanism is arranged at the side of the trimming shell 11 , a negative pressure mechanism is arranged above the moving mechanism, and an adjusting mechanism is arranged outside the negative pressure mechanism.

[0055] The moving mechanism is a truck, and the side of the truck is fixedly connected to the mounting member 13 .

[0056] The negative pressure mechanism includes a negative pressure box, a negative pressure pipe and a negative pressure pump. The negative pressure box is installed on the top of the truck, the negative pressure pump is installed inside the negative pressure box, one end of the negative pressure pipe is installed on the negative pressure pump, and the other end is fixedly connected to the top of the trimming shell 11.

[0057] The regulating mechanism comprises a mechanical arm, which is fixedly connected to the top of the negative pressure box. The mechanical arm wraps the negative pressure pipeline inside it, and one end of the mechanical arm away from the negative pressure box is fixedly connected to the top of the trimming shell 11.

[0058] The working principle of the present invention in combination with the above is as follows:

[0059] The following is the initial state: the cylinder 22 is in a fully extended state, the fixed shaft 29 is located on one side of the curved groove 28 and the straight groove 26 close to the center of the telescopic bag 210, the telescopic bag 210 is not stretched at this time, and the collecting plate 36 is parallel to the ground.

[0060] The following are the specific steps of the work:

[0061] Among them, greening maintenance of municipal projects:

[0062] like Figure 1 and Figure 2 As shown, the operator drives the truck to the greening maintenance area and controls the mechanical arm through an external controller so that the trimming shell 11 below it can cover the hedge.

[0063] After the pruning shell 11 covers the hedge, the operator starts the driving mechanism, the external motor and the negative pressure mechanism through the external controller, and the driving motor, the active bevel gear connecting rod, the matching bevel gear connecting rod, the positioning shaft and the belt in the driving mechanism work together and drive the pruning knife 12 to rotate, so as to clean and collect the branches and leaves, and the negative pressure mechanism collects the branches cut by the pruning knife 12 through the negative pressure pipe, and the external motor drives the crankshaft 34 to rotate, so as to further assist in the collection of branches and leaves.

[0064] Under the operator's control, the truck keeps moving and the equipment continues to clean, collect and store branches and leaves until the operation of the entire greening maintenance area is completed.

[0065] Among them, the pruning of hedges and the synchronous regulation of negative pressure:

[0066] like Figures 2 to 6 As shown, in the above process, the pruning knife 12 has been driven and started to prune the hedge. When a larger hedge needs to be pruned, the distance between the side pruning knives 12 needs to be adjusted. Since the position of the upper pruning knife 12 has not changed, the distance between the side pruning knives 12 needs to be shortened.

[0067] At this time, the operator needs to operate the external controller and electrically control the cylinder 22 to start. At this time, the output shaft of the cylinder 22 drives the active block 21 to move toward the top of the trimming shell 11. Since the driven block 23 is slidably connected to the side of the active block 21, and the driven block 23 itself is slidably connected to the inner wall of the trimming shell 11, under the action of the oblique edge resistance, the driven block 23 will slide toward the side close to the middle of the trimming shell 11.

[0068] Then, the movement of the driven block 23 drives the support plate 24 to move synchronously, and the support plate 24 drives the pruning blade 12 on its surface to move toward the middle. During this process, the pruning blade 12 will slide on the surface of the positioning shaft, and the positioning shaft will still drive the pruning blade 12 to rotate. Since the distance between the pruning blades 12 becomes smaller, while the distance between the pruning blades 12 above remains unchanged, when dealing with large-volume hedge pruning, shortening the distance between the pruning blades 12 can still ensure that the lateral pruning amount is less than the upper part.

[0069] In addition, the movement of the support plate 24 will drive the folding rod 25 on its surface to move synchronously. Since the turntable 27 is restricted to rotate at the top of the inner cavity of the trimming shell 11, the movement of the folding rod 25 will push the turntable 27 and cause it to rotate. During the rotation of the turntable 27, the connection between the turntable 27 and the folding rod 25 is always on the turntable 27, that is, the connection will not change. Therefore, the movement of the folding rod 25 can only cause the turntable 27 to rotate to a certain extent.

[0070] As the turntable 27 rotates, the fixed shaft 29 inside the curved groove 28 tends to rotate synchronously, but because the curved groove 28 is also restricted by the straight groove 26 and can only slide in a straight line, in order to adapt to the rotation of the turntable 27, the fixed shaft 29 will slide inside the curved groove 28 and the straight groove 26 toward the side away from the center of the turntable 27, and then the movement of the fixed shaft 29 will elastically stretch the telescopic bag 210.

[0071] In the process of switching from small-volume hedge pruning to large-volume hedge pruning, the side pruning blades 12 shorten the distance between them, resulting in an increase in the number of branches cut. Since the negative pressure value remains unchanged and the telescopic bag 210 is elastically stretched by the movement of the fixed shaft 29, its cross-sectional area increases. Based on the basic principle of fluid mechanics, the flow rate Q of air through the pipeline can be expressed as: Q=A×v, where A is the cross-sectional area of ​​the pipeline and v is the speed of the fluid through the pipeline.

[0072] In the negative pressure system, the negative pressure pump creates a low pressure area, attracting the surrounding air and branches into the negative pressure pipe. The magnitude of the negative pressure determines the strength of the attraction. When the negative pressure value remains unchanged, the cross-sectional area A of the negative pressure pipe is increased.

[0073] The flow rate Q can be increased, which means that more air and branches can pass through the pipe in the same amount of time, thus achieving the suction of more branches.

[0074] However, in the above process, the cross-sectional area of ​​the negative pressure pipe does not change, only the cross-sectional area of ​​the telescopic bag 210 at the outlet increases. The Bernoulli principle in fluid dynamics points out that in the process of fluid flow, there is a relationship between flow rate and pressure: the faster the flow rate, the lower the pressure; conversely, the slower the flow rate, the higher the pressure. When the cross-sectional area of ​​the telescopic bag 210 increases, the speed of the fluid at the outlet will decrease. According to the Bernoulli principle, this will cause the pressure at the outlet to increase. Since the negative pressure value maintained by the negative pressure pump remains unchanged, this pressure increase will enhance the attraction at the outlet, thereby achieving the absorption of more branches under the unchanged negative pressure value.

[0075] In addition, the elastic stretching characteristics of the telescopic bag 210 enable it to adapt to the needs of hedge trimming of different volumes, and optimize the suction efficiency by adjusting the cross-sectional area, which not only improves the adaptability and flexibility of the equipment, but also ensures that efficient branch collection can be maintained under different working conditions.

[0076] Finally, when faced with hedges of the same volume, the operator needs to repeat the above steps in reverse to ensure that the amount of trimming on the side is less than the amount of trimming on the top.

[0077] Among them, the cleaning and collection of scattered branches:

[0078] like Figure 7 and Figure 8 As shown, during the greening maintenance process, the branches trimmed by the pruning knife 12 often scatter on the ground near the hedge due to the kinetic energy and gravity after cutting. These branches can naturally decompose into nutrients for the soil. However, the branches that fall on the road need to be cleaned up in time to avoid affecting traffic safety and environmental beauty.

[0079] According to the above steps, the external motor has been started, and the rotation of its output shaft drives the crankshaft 34 to rotate. Since the end of the double-headed rotating plate 33 away from the crankshaft 34 is rotatably connected to the inner surface of the collecting shell 32, the rotation of the crankshaft 34 will drive the ring 35 to rotate, and continuously pull and push the double-headed rotating plate 33, thereby causing the collecting plate 36 to start to swing back and forth.

[0080] As the truck moves forward, some branches scattered on the road will be directly collected into the collecting shell 32. This is because the bottom of the collecting plate 36 is designed with sharp raised strips. When the collecting plate 36 swings toward the bottom of the mounting box 31, these raised strips can effectively clamp the branches on its side walls and make them enter the collecting shell 32. The shape of the collecting plate 36 takes into account the physical properties of the branches, such as humidity, volume and shape. Through the mechanical action of the raised strips, it can adapt to branches in different states and achieve efficient collection.

[0081] During the swinging of the collecting plate 36 toward the top of the mounting box 31, due to the inward depression of its top, the branches will be pressed against the depression on the top side of the collecting plate 36 during the swinging process. When the collecting plate 36 reaches the maximum value of the top swinging stroke, the branches will be thrown into the collecting shell 32 under the guidance of gravity and the outer wall of the collecting plate 36. The gravity of the branches and the swinging kinetic energy of the collecting plate 36 ensure that the branches can be effectively collected regardless of their humidity or volume.

[0082] In addition, during the rotation of the collecting shaft 37, the cleaning strips on its surface interact with the ground, and then the collecting shaft 37 rotates. As the truck moves forward, the collecting shaft 37 moves toward the side close to the collecting bucket 38. The collecting shaft 37 will recollect the branches that are not completely collected by the collecting plate 36 and throw them into the collecting bucket 38. This secondary collection mechanism further improves the collection efficiency of the branches and ensures the cleanliness of the road surface.

[0083] Finally, the friction balls 39 on the surface of the collecting shaft 37 can fit against the road shoulder, which not only helps to reduce the wear on the remaining components of the composite collecting assembly, but also can better adapt to the unevenness of the road surface and improve the adaptability and durability of the equipment.

[0084] Through the joint work of the synchronous adjustment components and the composite collection components, the equipment can maintain efficient branch collection effects under different working conditions, thereby improving the overall efficiency and effectiveness of greening maintenance.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A greening maintenance device based on municipal engineering, used for changing the distance of side cutters and improving the cleaning effect of branches and leaves, comprising a pruning shell (11) and a mounting part (13), wherein a plurality of pruning knives (12) are installed inside the pruning shell (11), characterized in that: A synchronous adjustment component for adjusting the spacing between the side trimming blades (12) is arranged inside the trimming shell (11), and the synchronous adjustment component comprises an active block (21) and two passive blocks (23) for adjusting the distance between the side trimming blades (12), and a telescopic bag (210) for adaptively adjusting the size of negative pressure, wherein the active block (21) is slidably connected to the inner wall of the trimming shell (11), and the passive blocks (23) are slidably connected to the side walls of the active block (21), and the telescopic bag (210) is arranged inside the trimming shell (11).

2. The greening maintenance equipment based on municipal engineering according to claim 1 is characterized by: The synchronous adjustment component also includes a cylinder (22), the cylinder (22) is fixedly connected to the inner wall of the trimming shell (11), the output shaft of the cylinder (22) is fixedly connected to the top of the active block (21), the outer surface of each of the driven blocks (23) is fixedly connected to a support plate (24), the trimming knives (12) located on both sides are rotatably connected to the inside of the support plate (24), and the trimming knives (12) located on the top penetrate and are rotatably connected to the top of the trimming shell (11).

3. The greening maintenance equipment based on municipal engineering according to claim 2 is characterized by: The outer surface of the support plate (24) is fixedly connected with a folding rod (25); the inner wall of the top side of the trimming shell (11) is provided with straight grooves (26) arranged in an annular manner and at equal intervals; the inner wall of the top side of the trimming shell (11) is rotatably connected with a turntable (27); the turntable (27) penetrates the surface and is provided with a plurality of curved grooves (28) arranged in an annular manner and at equal intervals; a fixed shaft (29) is slidably connected inside each of the straight grooves (26) and the curved grooves (28); and the adjacent sides of the fixed shafts (29) are fixedly connected to the outer surface of the telescopic bag (210).

4. The greening maintenance equipment based on municipal engineering according to claim 1 is characterized by: A composite collection component for recycling residual branches and leaves on the roadside is arranged on the outside of the pruning shell (11), and the composite collection component comprises a mounting box (31) mounted on the outer surface of the mounting member (13), a collection shell (32) is fixedly connected to the inside of the mounting box (31), a double-headed rotating plate (33) is arranged on the side wall of the collection shell (32), and a crankshaft (34) is rotatably connected to the inner surface of the mounting box (31).

5. The greening maintenance equipment based on municipal engineering according to claim 4 is characterized in that: The composite collection assembly also includes a collar (35), wherein the collar (35) is rotatably connected to the outer surface of the crankshaft (34), the collar (35) is slidably connected to the inside of a double-headed rotating plate (33), the end of the double-headed rotating plate (33) away from the crankshaft (34) is fixedly connected to a collection plate (36), the inside of the mounting box (31) is rotatably connected to a collection shaft (37), the inside of the mounting box (31) is equipped with a collection bucket (38), the crankshaft (34) is drivenly installed on an external motor, and the side of the collection shaft (37) away from the mounting box (31) is rotatably connected to a friction ball (39), and the friction ball (39) penetrates the outer surface of the mounting box (31).

6. The greening maintenance equipment based on municipal engineering according to claim 2 is characterized by: The active block (21) is a trapezoid, the driven blocks (23) are all right triangles, the cylinder (22) is electrically controlled to start and stop by an external controller, the telescopic bag (210) is made of polyurethane, and a driving mechanism is installed on the top of the trimming shell (11), and the driving mechanism is electrically controlled to start and stop by an external controller.

7. The greening maintenance equipment based on municipal engineering according to claim 5 is characterized by: The edge of one side of the collecting shell (32) close to the collecting plate (36) is chamfered, and a sharp protrusion is provided at the bottom of the collecting plate (36) away from the collar (35). The top of the collecting plate (36) and the side close to the protrusion are recessed inwards. A plurality of cleaning strips are fixedly connected to the surface of the collecting shaft (37), and the cleaning strips are made of silicone. The side of the double-headed rotating plate (33) away from the crankshaft (34) is rotatably connected to the inner surface of the collecting shell (32).

8. The greening maintenance equipment based on municipal engineering according to claim 1 is characterized by: A moving mechanism is arranged on the side of the trimming shell (11), a negative pressure mechanism is arranged above the moving mechanism, and an adjusting mechanism is arranged on the outside of the negative pressure mechanism.

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