A maintenance device for municipal greenery works

Abstract

The utility model discloses a kind of maintenance equipment for municipal afforestation engineering, relate to afforestation maintenance equipment field, it includes driving arm and shell, the shell is movably connected on the driving arm, installation box is installed on the shell, and driving motor is installed in the center position of the installation box.It needs to be explained, in the embodiment of the present application, by the setting of supporting mechanism, impurity removal mechanism and initiative protection mechanism, when shell is cutting to green belt during walking, shell is supported by supporting rod and support seat, avoid shell from deflecting, guarantee the effect of pruning;In addition, when shell will be pruned, impurity removal frame is actively removed by reciprocating, avoid cutting saw blade damage, or other accident problem, if impurities cannot be cleaned, and extrude impurity removal frame to move, at this time, protection plate is extended, shell is isolated, avoid impurities into shell, further guarantee the safe use of shell.

Description

Technical Field

[0001] This invention relates to the field of greening maintenance equipment technology, and in particular to a maintenance equipment for municipal greening projects. Background Technology

[0002] Municipal administration refers to all administrative management work in a city, as well as market and trade affairs. Urban management work includes industry and commerce, transportation, education, culture, environment, sanitation, and infrastructure construction. With the rapid development of industrialization and urbanization, various "urban diseases" have emerged, threatening human health. These developments have prompted humanity to realize that protecting the environment is protecting humanity itself. We must shift from the path of industrialization to a green path of sustainable development. Building garden cities can enable harmonious development between humanity and nature and maintain biodiversity. Therefore, municipal greening projects have become an indispensable part of municipal work.

[0003] In municipal greening projects, the maintenance of greenery is a routine task. During maintenance, hedge trimmers are used to prune various plants in the green belts. When in use, a vehicle drives the hedge trimmer, and the drive arm moves the outer casing. The outer casing uses multiple cutting saw blades installed inside to cut and trim the green belt, completing the maintenance work. However, since the green belts are outdoors, there are often many hard impurities in the green belts during actual work, such as branches, steel bars, or other similar impurities. These impurities are generally in direct contact with the cutting saw blades. If the cutting saw blades cannot cut the hard impurities, it will not only hinder the normal progress of the cutting and trimming work, but if the impurities are hard impurities such as steel bars, it may even cause the saw blades to break and fly out, causing injury to vehicles or pedestrians, posing a great safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide a maintenance device for municipal greening projects to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A maintenance device for municipal greening projects includes a drive arm and a housing. The housing is movably connected to the drive arm. An installation box is mounted on the housing. A drive motor is installed at the center of the installation box. Dual-axis motors are installed on both sides of the drive motor and inside the installation box. Cutting saw blades are mounted on the output shafts of the drive motor and the two dual-axis motors. The cutting saw blades are located inside the housing.

[0007] It also includes a support mechanism, which is installed on one side of the housing and is used to support the housing to move; the support mechanism includes two support seats, both of which are movably installed on one side of the housing, and a support rod is movably installed on the bottom side of the support seat, and a walking wheel is installed on the bottom side of the support rod;

[0008] It also includes a debris removal mechanism, which is installed on the side of the housing away from the support base. The drive motor drives the debris removal mechanism to remove debris. The debris removal mechanism includes a mounting frame, which is mounted on one side of the housing. A debris removal frame is movably mounted on one side of the mounting frame and slides on one side of the mounting frame to remove impurities from the green belt.

[0009] It also includes an active protection mechanism, which is installed on one side of the housing and protects against impurities from entering the housing. The active protection mechanism includes a mounting plate, in which a protective plate is movably installed. The protective plate extends out to prevent impurities from entering the housing.

[0010] Furthermore, in a preferred embodiment of the present invention, a sliding groove is provided on one side of the outer shell, and two sliding blocks are slidably installed in the sliding groove, with the two support seats respectively movably installed on the two sliding blocks;

[0011] A threaded rod is installed on the sliding block, and a fastening nut is threaded onto the threaded rod, which is in contact with the support base.

[0012] Furthermore, in a preferred embodiment of the present invention, a support spring is installed at the top end of the support rod, and the top end of the support spring is installed on the inner wall of the top side of the support base.

[0013] Furthermore, in a preferred embodiment of the present invention, the impurity removal mechanism further includes two drive frames, both of which are slidably mounted on the top side of the housing, and a connecting rod is movably mounted on the bottom side of the drive frame, with the impurity removal frame mounted on the connecting rod;

[0014] A transverse groove is provided on the top side of the outer shell, and two transverse blocks are slidably installed in the transverse groove. The two transverse blocks are respectively installed on the two drive frames.

[0015] Furthermore, in a preferred embodiment of the present invention, an extrusion groove is provided on the bottom side of the drive frame, and an extrusion block is installed on the top side of the adapter rod, the extrusion block being slidably installed in the extrusion groove;

[0016] A compression spring is installed on the inner wall of the compression groove, and the other end of the compression spring is installed on the compression block.

[0017] Furthermore, in a preferred embodiment of the present invention, a sliding groove is provided on the mounting frame, and a plurality of sliding blocks are slidably installed in the sliding groove, and the plurality of sliding blocks are all installed on the impurity removal frame;

[0018] Each of the sliding blocks has a limiting hole, and a limiting rod is movably installed in each of the limiting holes. The limiting rod is installed on the mounting bracket. Each of the two sliding blocks at both ends is equipped with a return spring on the side away from each other. The two return springs are respectively installed on the inner walls of the two sides of the sliding groove.

[0019] Furthermore, in a preferred embodiment of the present invention, a motor shaft is mounted on the output shaft of the two dual-axis motors, a rotating rod is mounted on the top end of the motor shaft, and a drive shaft is mounted on the top side of the rotating rod;

[0020] The drive frame has a drive hole, and the drive shaft is located inside the drive hole.

[0021] Furthermore, in a preferred embodiment of the present invention, the active protection mechanism further includes two mounting seats, both of which are mounted on the mounting plate. A compression rod is movably mounted on the mounting seat, and an extrusion plate is mounted at the end of the compression rod. The extrusion plate is mounted on the mounting frame.

[0022] A compression spring is fitted onto the mounting base and the compression rod, with the two ends of the compression spring respectively mounted on the mounting plate and the compression plate.

[0023] Furthermore, in a preferred embodiment of the present invention, two movable holes are provided on one side of the mounting base on which the compression rod is movably mounted, and a drive seat is mounted on one side of both the protective plate and the extrusion plate, and a drive rod is rotatably mounted on one side of the two drive seats;

[0024] Both drive seats are rotatably mounted with drive shafts, and both drive shafts are mounted on drive rods.

[0025] Furthermore, in a preferred embodiment of the present invention, a plurality of return springs are installed on the top side of the protective plate, and the top ends of the plurality of return springs are all installed on the inner wall of the top side of the mounting plate.

[0026] The beneficial effects of the maintenance equipment for municipal greening projects proposed in this invention are:

[0027] In this invention, by setting up a support mechanism, when the outer shell moves to cut the green belt, the support rod and support seat support the outer shell to prevent the outer shell from deflecting and ensure the pruning effect.

[0028] Furthermore, in this invention, by setting up a debris removal mechanism, when the outer shell is to be trimmed, the debris removal frame moves back and forth to actively remove debris from the green belt, actively removing hard impurities such as branches and steel in the green belt, avoiding direct contact with the cutting saw blade, causing damage to the cutting saw blade, or even the breaking of the cutting saw blade, thereby avoiding the problem of fragments flying out and injuring pedestrians or other accidents, and ensuring the safe trimming of the outer shell.

[0029] Furthermore, in this invention, by setting up an active protection mechanism, if impurities cannot be removed and the impurity removal rack is squeezed to move, a protective plate extends to isolate the outer shell, preventing impurities from entering the outer shell and further ensuring the safe use of the outer shell. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a maintenance device for municipal greening projects provided in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the rear structure of a maintenance device for municipal greening projects provided in an embodiment of the present invention;

[0032] Figure 3 This is a partial cross-sectional structural diagram illustrating the connection between the support base and support rod of a maintenance equipment used in municipal greening projects, as provided in an embodiment of the present invention.

[0033] Figure 4 A partial structural diagram illustrating the connection between a sliding block and a threaded rod, etc., in a maintenance device for municipal greening projects, provided in an embodiment of the present invention;

[0034] Figure 5 This is a structural diagram illustrating the connection between the mounting plate and protective plate of a maintenance equipment used in municipal greening projects, as provided in an embodiment of the present invention.

[0035] Figure 6 This is a partial structural diagram of the connection between the motor shaft and rotating rod of a maintenance device used in municipal greening projects, provided in an embodiment of the present invention.

[0036] Figure 7 This invention provides a partial cross-sectional view of the connection between the mounting base and compression rod of a maintenance device used in municipal greening projects, as provided in an embodiment of the present invention.

[0037] Figure 8 This is a partial cross-sectional structural diagram illustrating the connection between the mounting frame and the debris removal frame of a maintenance equipment used in municipal greening projects, as provided in an embodiment of the present invention.

[0038] Figure 9This invention provides a cross-sectional structural diagram illustrating the connection between the mounting plate and protective plate of a maintenance equipment used in municipal greening projects, as provided in an embodiment of the present invention.

[0039] Figure 10 This invention provides a maintenance device for municipal greening projects. Figure 5 A schematic diagram of the structure of part A.

[0040] In the diagram: 1-Drive arm; 2-Outer casing; 3-Cutting saw blade; 4-Drive motor; 5-Dual-axis motor; 6-Mounting box; 7-Support mechanism; 701-Support base; 702-Support rod; 703-Walking wheel; 704-Sliding groove; 705-Sliding block; 706-Threaded rod; 707-Fastening nut; 708-Support spring; 8-Impact removal mechanism; 801-Mounting frame; 802-Impact removal frame; 803-Sliding groove; 804-Sliding block; 805-Restricting hole; 806-Restricting rod; 807-Return spring; 808-With... Moving frame; 809-Adapter rod; 810-Drive hole; 811-Drive shaft; 812-Motor shaft; 813-Rotating rod; 814-Transverse groove; 815-Transverse block; 816-Extrusion groove; 817-Extrusion block; 818-Extrusion spring; 9-Active protection mechanism; 901-Mounting plate; 902-Protective plate; 903-Reset spring; 904-Mounting base; 905-Compression rod; 906-Compression spring; 907-Extrusion plate; 908-Moving hole; 909-Drive base; 910-Drive rod; 911-Drive shaft. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] Furthermore, in the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "perpendicular" do not imply that components must be absolutely vertical, but rather that they can be slightly tilted. For example, "vertical" simply means that its direction is more vertical relative to "horizontal," not that the structure must be completely vertical, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] Example

[0048] Please refer to the attached instruction manual. Figure 1-10 The present invention provides a maintenance device for municipal greening projects, which includes a drive arm 1 and a housing 2. The housing 2 is movably connected to the drive arm 1. An installation box 6 is installed on the housing 2. A drive motor 4 is installed at the center of the installation box 6. Dual-axis motors 5 are installed in the installation box 6 on both sides of the drive motor 4. Cutting saw blades 3 are installed on the output shafts of the drive motor 4 and the two dual-axis motors 5. The cutting saw blades 3 are located inside the housing 2.

[0049] It also includes a support mechanism 7, which is installed on one side of the housing 2 and is used to support the movement of the housing 2. The support mechanism 7 includes two support seats 701, both of which are movably installed on one side of the housing 2. A support rod 702 is movably installed on the bottom side of the support seat 701, and a walking wheel 703 is installed on the bottom side of the support rod 702.

[0050] Furthermore, the maintenance equipment for municipal greening projects provided in this embodiment of the invention also includes a debris removal mechanism 8. The debris removal mechanism 8 is installed on the side of the outer shell 2 away from the support base 701, and the drive motor 4 drives the debris removal mechanism 8 to remove debris. The debris removal mechanism 8 includes a mounting frame 801, which is located on one side of the outer shell 2. A debris removal frame 802 is movably installed on one side of the mounting frame 801. The debris removal frame 802 slides on one side of the mounting frame 801 to remove impurities from the green belt.

[0051] It also includes an active protection mechanism 9, which is installed on one side of the housing 2. The active protection mechanism 9 protects against impurities from entering the housing 2. The active protection mechanism 9 includes a mounting plate 901, in which a protective plate 902 is movably installed. The protective plate 902 extends out to prevent impurities from entering the housing 2. It should be noted that, in this embodiment of the invention, the support mechanism 7 supports the outer casing 2 when it moves to cut the green belt, preventing the outer casing 2 from deflecting and ensuring the pruning effect. Simultaneously, the debris removal mechanism 8 actively removes debris from the green belt by reciprocating movement when the outer casing 2 is being pruned. This actively removes hard impurities such as branches and steel from the green belt, preventing them from directly contacting the cutting saw blade 3 and causing damage or even breakage. This avoids the problem of fragments flying out and injuring pedestrians or causing other accidents, ensuring the safe pruning of the outer casing 2. Furthermore, the active protection mechanism 9, if impurities cannot be removed and cause the debris removal mechanism 802 to move, extends the protective plate 902 to isolate the outer casing 2, preventing impurities from entering and further ensuring the safe use of the outer casing 2.

[0052] Further, please refer to the appendix to the instruction manual. Figure 2-4 This invention provides a maintenance device for municipal greening projects. One side of the outer casing 2 has a sliding groove 704. Two sliding blocks 705 are slidably installed within the sliding groove 704. Two support seats 701 are movably installed on the two sliding blocks 705 respectively. A threaded rod 706 is installed on each sliding block 705, and a fastening nut 707 is threaded onto the threaded rod 706, contacting the support seat 701. It should be noted that in this embodiment, moving the support seat 701 causes it to slide via the threaded rod 706, allowing the sliding blocks 705 to slide within the sliding groove 704. After adjustment, rotating the support seat 701 causes it to rotate on the threaded rod 706, thereby adjusting the angle of the support seat 701. After adjustment, tightening the fastening nut 707 fixes the positions of the support seat 701 and the sliding blocks 705.

[0053] Please continue to refer to the instruction manual appendix. Figure 2-4More specifically, in this embodiment of the invention, a support spring 708 is installed at the top of the support rod 702, and the top of the support spring 708 is installed on the inner wall of the top side of the support base 701. It should be noted that, in this embodiment of the invention, when the angle of the outer shell 2 changes, the position and angle of the support base 701 can be adjusted according to the usage. The support base 701 is slidable so that it drives the sliding block 705 to slide through the threaded rod 706. The sliding block 705 slides in the sliding groove 704. After the adjustment is completed, the support base 701 is rotated so that it rotates on the threaded rod 706, thereby adjusting the angle of the support base 701. After the adjustment is completed, the fastening nut 707 is tightened to fix the position of the support base 701 and the sliding block 705. In addition, when the two support rods 702 are tilted and the angle of the support base 701 has been adjusted, when the outer shell 2 is supported, due to the height difference between the two support bases 701, the support rod 702 at the lower position is subjected to pressure and retracts, causing the support rod 702 to retract into the support base 701 and causing the support spring 708 to retract under force. When the outer shell 2 is reset, the support rod 702 is also reset under the rebound force of the support spring 708, which does not affect the use in other environments.

[0054] Further, please refer to the appendix to the instruction manual. Figure 5-8 The present invention provides a maintenance device for municipal greening projects. The cleaning mechanism 8 further includes two drive frames 808. Both drive frames 808 are slidably installed on the top side of the outer shell 2. A transition rod 809 is movably installed on the bottom side of the drive frame 808. The cleaning frame 802 is installed on the transition rod 809.

[0055] Additionally, a transverse sliding groove 814 is provided on the top side of the outer casing 2. Two transverse sliding blocks 815 are slidably installed in the transverse sliding groove 814, and the two transverse sliding blocks 815 are respectively installed on two drive frames 808. It should be noted that, in this embodiment of the invention, the drive frame 808 slides in the transverse sliding groove 814 through the transverse sliding blocks 815, so that the drive frame 808 slides horizontally. The movement of the drive frame 808 drives the transition rod 809 to move, and the movement of the transition rod 809 drives the impurity removal frame 802 to slide on the mounting frame 801.

[0056] More specifically, in this embodiment of the invention, a squeezing groove 816 is provided on the bottom side of the drive frame 808, and a squeezing block 817 is installed on the top side of the adapter rod 809. The squeezing block 817 is slidably installed in the squeezing groove 816. A squeezing spring 818 is installed on the inner wall of the squeezing groove 816, and the other end of the squeezing spring 818 is installed on the squeezing block 817. It should be noted that in this embodiment of the invention, when the impurity removal frame 802 is squeezed by impurities, causing the impurity removal frame 802 to move with the adapter rod 809, the adapter rod 809 drives the squeezing block 817 to slide horizontally in the squeezing groove 816, and drives the squeezing spring 818 to be stressed. Therefore, under the rebound force of the squeezing spring 818, it is easy to help the impurity removal frame 802 reset, thereby facilitating the ejection of impurities.

[0057] Please continue to refer to the instruction manual appendix. Figure 5-8 More specifically, in this embodiment of the invention, a sliding groove 803 is provided on the mounting frame 801, and a plurality of sliding blocks 804 are slidably installed in the sliding groove 803. The plurality of sliding blocks 804 are all installed on the cleaning frame 802. A limiting hole 805 is provided on the plurality of sliding blocks 804, and a limiting rod 806 is movably installed in the plurality of limiting holes 805. The limiting rod 806 is installed on the mounting frame 801. A return spring 807 is installed on the side of the sliding blocks 804 at both ends that are far apart from each other. The ends of the two return springs 807 that are far apart from each other are respectively installed on the inner walls of the two sides of the sliding groove 803. It should be noted that, in this embodiment of the invention, when the cleaning rack 802 moves laterally, it slides in the sliding groove 803 through multiple sliding blocks 804. The sliding blocks 804 slide on the limiting rod 806 through the limiting hole 805, and drive the two return springs 807 to be stressed. Then, under the rebound force of the two return springs 807, the cleaning rack 802 is reset, thereby helping the cleaning rack 802 to move back and forth.

[0058] More specifically, in this embodiment of the invention, motor shafts 812 are mounted on the output shafts of the two dual-axis motors 5. A rotating rod 813 is mounted on the top of the motor shaft 812, and a drive shaft 811 is mounted on the top side of the rotating rod 813. In addition, a drive hole 810 is provided on the drive frame 808, and the drive shaft 811 is located in the drive hole 810. It should be noted that, in this embodiment of the invention, when the dual-axis motors 5 are started, they drive the motor shaft 812 to rotate. The motor shaft 812 drives the rotating rod 813 to rotate, and the rotating rod 813 drives the drive shaft 811 to rotate, so that the drive shaft 811 rotates in the drive hole 810 and drives the drive frame 808 to move. The drive frame 808 slides in the transverse groove 814 through the transverse block 815, and when the rotating rod 813 rotates one revolution, it drives the drive frame 808 to reciprocate transversely once, thereby driving the cleaning frame 802 to reciprocate and actively clean the green belt.

[0059] Further, please refer to the appendix to the instruction manual. Figure 5 , Figure 7and Figure 9-10 The present invention provides a maintenance device for municipal greening projects. The active protection mechanism 9 further includes two mounting seats 904. Both mounting seats 904 are mounted on the mounting plate 901. A compression rod 905 is movably mounted on the mounting seat 904. An extrusion plate 907 is mounted at the end of the compression rod 905. The extrusion plate 907 is mounted on the mounting frame 801.

[0060] Additionally, a compression spring 906 is sleeved on the mounting base 904 and the compression rod 905, with both ends of the compression spring 906 mounted on the mounting plate 901 and the extrusion plate 907, respectively. It should be noted that in this embodiment of the invention, as the outer casing 2 continues to advance, causing impurities to move against the impurity removal frame 802, the impurity removal frame 802 drives the adapter rod 809 to press the extrusion plate 907, which in turn causes the extrusion plate 907 to slide within the mounting base 904, and forces the compression spring 906. At this time, the rebound force of the compression spring 906 helps the extrusion plate 907 to reset, thereby causing the impurity removal frame 802 to reset and push out the impurities.

[0061] More specifically, in this embodiment of the invention, two movable holes 908 are provided on one side of the mounting base 904 where the compression rod 905 is movably mounted. A drive seat 909 is mounted on one side of both the protective plate 902 and the extrusion plate 907. A drive rod 910 is rotatably mounted on one side of both drive seats 909. A drive shaft 911 is rotatably mounted on both drive seats 909. Both drive shafts 911 are mounted on the drive rods 910. It should be noted that in this embodiment of the invention, when the outer shell 2 continues to move forward, causing impurities to move against the impurity removal frame 802, and the impurities cannot be pushed out, the impurity removal frame 802 drives the adapter rod 809 to press the pressing plate 907 to move. The movement of the pressing plate 907 drives a drive seat 909 to move. The drive seat 909 drives the drive rod 910 to move through a drive shaft 911. The drive rod 910 drives another drive seat 909 to move through another drive shaft 911, causing the drive seat 909 to move within the movable hole 908 and drive the protective plate 902 to extend out, blocking the impurities and preventing the impurities from directly entering the outer shell 2 and contacting the cutting saw blade 3, causing damage to the cutting saw blade 3 or causing secondary damage by jumping out.

[0062] Please continue to refer to the instruction manual appendix. Figure 5 , Figure 7 and Figure 9-10More specifically, in this embodiment of the invention, a plurality of return springs 903 are installed on the top side of the protective plate 902, and the top ends of the plurality of return springs 903 are all installed on the inner wall of the top side of the mounting plate 901. It should be noted that, in this embodiment of the invention, when the protective plate 902 is pulled out, it causes the plurality of return springs 903 to be subjected to force. Therefore, during the reset process of the protective plate 902, the rebound force of the plurality of return springs 903 effectively helps the protective plate 902 to reset.

[0063] In summary, the working principle of the maintenance equipment for municipal greening projects provided in this embodiment of the invention is as follows:

[0064] When the drive arm 1 drives the housing 2 to cut, the position and angle of the support 701 can be adjusted according to the usage when the angle of the housing 2 changes. The support 701 is slidable so that it drives the sliding block 705 to slide via the threaded rod 706. The sliding block 705 slides within the sliding groove 704. After adjustment, the support 701 is rotated so that it rotates on the threaded rod 706, thereby adjusting the angle of the support 701. After adjustment, the fastening nut 707 is tightened to allow the support 701 and the sliding block 705 to move together. The position of block 705 is fixed; and when the two support rods 702 are tilted and the angle of the support seat 701 is adjusted, when the outer shell 2 is supported, due to the height difference between the two support seats 701, the support rod 702 at the lower position is subjected to pressure and retracts, causing the support rod 702 to retract into the support seat 701, and driving the support spring 708 to retract under force. Therefore, when the outer shell 2 is reset, the support rod 702 is also reset under the rebound force of the support spring 708, which does not affect the use in other environments.

[0065] Furthermore, during cutting, the dual-axis motor 5 starts, driving the motor shaft 812 to rotate. The motor shaft 812 drives the rotating rod 813 to rotate, which in turn drives the driving shaft 811 to rotate. This causes the driving shaft 811 to rotate within the driving hole 810, and moves the driving frame 808. The driving frame 808 slides within the transverse groove 814 via the transverse block 815. When the rotating rod 813 rotates one revolution, it drives the driving frame 808 to reciprocate transversely once. The movement of the driving frame 808 drives the adapter rod 809 to move, and the movement of the adapter rod 809 causes the impurity removal frame 802 to slide on the mounting frame 801. During transverse movement, the impurity removal frame 802 slides via multiple sliding blocks 804. The sliding block 804 slides in the groove 803 and slides on the limiting rod 806 through the limiting hole 805, which drives the two return springs 807 to be stressed. Under the rebound force of the two return springs 807, the debris removal frame 802 is reset and reciprocated. When the outer shell 2 is to be trimmed, the debris removal frame 802 actively removes debris from the green belt by reciprocating, actively removing hard impurities such as branches and steel in the green belt, avoiding direct contact with the cutting saw blade 3, which could damage or even break the cutting saw blade 3, thereby avoiding the problem of fragments flying out and injuring pedestrians or other accidents, and ensuring the safe trimming of the outer shell 2.

[0066] Furthermore, as the outer casing 2 continues to advance, causing impurities to move against the impurity removal frame 802 and preventing them from being ejected, the impurity removal frame 802 drives the adapter rod 809 to press the pressing plate 907 to move. The movement of the pressing plate 907 drives a drive seat 909 to move. The drive seat 909 drives the drive rod 910 to move through a drive shaft 911. The drive rod 910 drives another drive seat 909 to move through another drive shaft 911. This causes the drive seat 909 to move within the movable hole 908 and causes the protective plate 902 to extend, blocking the impurities and preventing them from directly entering the outer casing 2 and contacting the cutting saw blade 3, thus avoiding damage to the cutting saw blade 3 or causing secondary damage by ejecting it.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A maintenance device for municipal greening projects, characterized in that, It includes a drive arm and a housing. The housing is movably connected to the drive arm. A mounting box is installed on the housing. A drive motor is installed at the center of the mounting box. Dual-axis motors are installed on both sides of the drive motor and inside the mounting box. Cutting saw blades are installed on the output shafts of the drive motor and the two dual-axis motors. The cutting saw blades are located inside the housing. It also includes a support mechanism, which is installed on one side of the housing and is used to support the housing to move; the support mechanism includes two support seats, both of which are movably installed on one side of the housing, and a support rod is movably installed on the bottom side of the support seat, and a walking wheel is installed on the bottom side of the support rod; It also includes a debris removal mechanism, which is installed on the side of the housing away from the support base. The drive motor drives the debris removal mechanism to remove debris. The debris removal mechanism includes a mounting frame, which is mounted on one side of the housing. A debris removal frame is movably mounted on one side of the mounting frame and slides on one side of the mounting frame to remove impurities from the green belt. It also includes an active protection mechanism, which is installed on one side of the housing and protects against impurities from entering the housing; the active protection mechanism includes a mounting plate, in which a protective plate is movably installed, and the protective plate extends to prevent impurities from entering the housing; The impurity removal mechanism also includes two drive frames, both of which are slidably mounted on the top side of the housing. A connecting rod is movably mounted on the bottom side of each drive frame, and the impurity removal frame is mounted on the connecting rod. A transverse groove is provided on the top side of the outer shell, and two transverse blocks are slidably installed in the transverse groove. The two transverse blocks are respectively installed on the two drive frames. The bottom side of the drive frame is provided with an extrusion groove, and the top side of the adapter rod is provided with an extrusion block, which is slidably installed in the extrusion groove. A compression spring is installed on the inner wall of the compression groove, and the other end of the compression spring is installed on the compression block.

2. The maintenance equipment for municipal greening projects according to claim 1, characterized in that, A sliding groove is provided on one side of the outer shell, and two sliding blocks are slidably installed in the sliding groove. The two support seats are respectively movably installed on the two sliding blocks. A threaded rod is installed on the sliding block, and a fastening nut is threaded onto the threaded rod, which is in contact with the support base.

3. The maintenance equipment for municipal greening projects according to claim 2, characterized in that, A support spring is installed at the top of the support rod, and the top of the support spring is installed on the inner wall of the top side of the support base.

4. The maintenance equipment for municipal greening projects according to claim 1, characterized in that, The mounting frame is provided with a sliding groove, and multiple sliding blocks are slidably installed in the sliding groove. All of the multiple sliding blocks are installed on the impurity removal frame. Each of the sliding blocks has a limiting hole, and a limiting rod is movably installed in each of the limiting holes. The limiting rod is installed on the mounting bracket. Each of the two sliding blocks at both ends is equipped with a return spring on the side away from each other. The two return springs are respectively installed on the inner walls of the two sides of the sliding groove.

5. The maintenance equipment for municipal greening projects according to claim 4, characterized in that, Motor shafts are mounted on the output shafts of the two dual-axis motors, a rotating rod is mounted on the top of the motor shaft, and a drive shaft is mounted on the top side of the rotating rod; The drive frame has a drive hole, and the drive shaft is located inside the drive hole.

6. The maintenance equipment for municipal greening projects according to claim 1, characterized in that, The active protection mechanism also includes two mounting bases, both of which are mounted on the mounting plate. A compression rod is movably mounted on the mounting base, and an extrusion plate is mounted at the end of the compression rod. The extrusion plate is mounted on the mounting frame. A compression spring is fitted onto the mounting base and the compression rod, with the two ends of the compression spring respectively mounted on the mounting plate and the compression plate.

7. The maintenance equipment for municipal greening projects according to claim 6, characterized in that, Two movable holes are provided on one side of the mounting base on which the compression rod is movably mounted. A drive seat is installed on one side of both the protective plate and the extrusion plate, and a drive rod is rotatably mounted on one side of the two drive seats. Both drive seats are rotatably mounted with drive shafts, and both drive shafts are mounted on drive rods.

8. A maintenance device for municipal greening projects according to claim 7, characterized in that, Multiple return springs are installed on the top side of the protective plate, and the top ends of the multiple return springs are all installed on the inner wall of the top side of the mounting plate.

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