Municipal green belt pruning equipment

Abstract

The invention provides municipal green belt trimming equipment. The municipal green belt trimming equipment comprises a moving mechanism, a mounting rack, an outer side rack, at least one outer side positioning wheel, an inner side rack, at least one inner side positioning wheel and a trimming mechanism. And the mounting rack is mounted on the moving mechanism. The outer side rack is mounted at one end, close to the curb, of the mounting rack. The at least one outer side positioning wheel is installed on the outer side rack and abuts against the side, back to the green belt, of the curb. And the inner side rack is mounted on the outer side rack. The at least one inner side positioning wheel is installed on the inner side rack and abuts against the top end of the side, facing the green belt, of the curb. The trimming mechanism is installed on the moving mechanism. According to the municipal green belt trimming equipment, in the trimming process, deviation is not likely to happen, and the trimming quality of the trimming mechanism can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of forestry care, and in particular to a municipal green belt pruning device. Background Art

[0002] In municipal construction, green belts are often installed along and in the middle of roads to eliminate visual fatigue, purify the environment, beautify the city, and reduce traffic accidents. These belts play an irreplaceable and important role in cities. However, as green plants grow over time, they can easily obstruct vision and affect the aesthetics, necessitating pruning of green belts.

[0003] Currently, self-propelled pruning equipment is commonly used for mowing green belts. By operating the self-propelled pruning equipment, workers can mow the green belt while on the move, achieving high mowing efficiency. However, with existing technologies, workers cannot follow the intended route when humidifying the self-propelled pruning equipment. For example, when the self-propelled pruning equipment is required to move straight, the workers will inevitably deviate from the intended route when controlling the self-propelled pruning equipment, resulting in undulations on the sides of the green belt and poor mowing quality. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a municipal green belt pruning device to solve the technical problem in the prior art that the self-propelled pruning device cannot travel along the predetermined route, resulting in poor pruning quality.

[0005] To achieve the above objectives, the technical solution adopted in this application is to provide a municipal green belt pruning device, comprising: Mobile mechanism; A mounting frame mounted on the moving mechanism; An outer frame is mounted on one end of the mounting frame close to the curb; At least one outer positioning wheel is mounted on the outer frame and is supported against the side of the curb facing away from the green belt; An inner frame, mounted on the outer frame; At least one inner positioning wheel is mounted on the inner frame and abuts against the top of the curb facing the green belt; The trimming mechanism is installed on the moving mechanism.

[0006] Optionally, the inner frame includes a first adjusting frame and a second adjusting frame, the first adjusting frame is mounted on the outer frame, the second adjusting frame is mounted on the first adjusting frame, and moves along the first direction driven by the first adjusting frame, and is configured to be able to drive at least one of the inner positioning wheels to move along the second direction.

[0007] Optionally, the outer frame includes an outer mounting tube, and the outer mounting tube is mounted on the mounting frame; The first adjustment frame includes at least one elastic adjustment member and an inner mounting tube, at least one of the elastic adjustment members is mounted on the outer mounting tube, the inner mounting tube is mounted on at least one of the elastic adjustment members, and moves along the first direction driven by the elastic adjustment member, and is located on a side of the outer mounting tube facing away from the mounting frame.

[0008] Optionally, the elastic adjustment member includes a first adjusting screw, two first adjusting nuts and two elastic structures. The first adjusting screw is installed on the inner mounting tube and passes through the outer mounting tube. The two first adjusting nuts are both threaded on the first adjusting screw and are respectively arranged on both sides of the outer mounting tube along the first direction. The two elastic structures are both sleeved on the first adjusting screw and are respectively arranged on both sides of the outer mounting tube, and are both held between the outer mounting tube and the first adjusting nut.

[0009] Optionally, the second adjustment frame includes a second adjustment screw, two second adjustment nuts, an inner adjustment tube and at least one inner guide rod, the second adjustment screw is installed on the inner adjustment tube and passes through the inner mounting tube, the two second adjustment nuts are both screwed to the second adjustment screw and are respectively arranged on both sides of the inner mounting tube along the second direction, the inner adjustment tube is installed at one end of the second adjustment screw close to the curb, and at least one inner guide rod is installed on the inner adjustment tube and passes through the inner mounting tube.

[0010] Optionally, the outer frame includes an outer mounting tube, an outer adjusting screw, two outer adjusting nuts, an outer adjusting tube and at least one outer guide rod, the outer mounting tube is mounted on the mounting frame, the outer adjusting screw is mounted on the outer mounting tube, the two outer adjusting nuts are both threadedly connected to the outer adjusting screw and are respectively arranged on both sides of the outer mounting tube along the second direction, the outer adjusting tube is mounted on the side of the outer adjusting screw close to the curb, and at least one outer guide rod is mounted on the outer adjusting tube and passes through the outer mounting tube.

[0011] Optionally, the inner positioning wheel is provided with a groove.

[0012] Optionally, the outer positioning wheel includes a mounting support, a rotating fork and two rollers, the mounting support is mounted on the outer frame, the rotating fork is hinged to the mounting support, and the two rollers are both mounted on the rotating fork.

[0013] Optionally, the trimming mechanism includes a fixed arm, a rotating arm, a driver and a wheel trimmer, the fixed arm is mounted on the moving mechanism, the rotating arm is hinged to one end of the fixed arm away from the moving mechanism, the driver is hinged between the fixed arm and the rotating arm, and can drive the rotating arm to rotate relative to the fixed arm about a third direction, and the wheel trimmer is mounted on one end of the rotating arm away from the fixed arm.

[0014] Optionally, the rotating arm is configured as a telescopic arm.

[0015] The beneficial effects of the municipal green belt pruning device provided by this application are: The present application provides a municipal green belt pruning device. During the pruning process, the outer positioning wheel abuts against the outer side of the curb, and the inner positioning wheel abuts against the inner top of the curb. Under the action of the curb, the movement of the moving mechanism can be guided, which helps to improve the stability of the pruning mechanism during movement, so that the side profile of the green belt can be roughly consistent with the profile of the curb, and the pruning is smooth. Compared with related technologies, it is less likely to deviate, which helps to improve the pruning quality of the pruning mechanism. In addition, during use, the inner positioning wheel abuts against the inner top of the curb. Compared with the inner positioning wheel abutting against the inner side of the curb (i.e., the side of the curb buried in the soil), it can avoid the situation where the soil interferes with the inner positioning wheel, resulting in the inner positioning wheel being unable to abut against the inner side of the curb. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A first-person perspective stereogram of a municipal green belt pruning device provided in this application; Figure 2 A second perspective stereoscopic image of a municipal green belt pruning device provided in this application; Figure 3 A schematic diagram of the working conditions of the outer positioning wheel and the inner positioning wheel of a municipal green belt pruning equipment provided in this application; Figure 4 This is a stereoscopic diagram of an outer frame, outer positioning wheel, inner frame and inner positioning wheel of a municipal green belt pruning device provided in this application.

[0018] Among them, the reference numerals in the figures are: 1. Mobile mechanism; 2. Install the rack; 3. Outer frame; 31. Outer mounting tube; 32. Outer adjustment screw; 33. Outer adjustment nut; 34. Outer adjustment tube; 35. Outer guide rod; 4. Outer positioning wheel; 41. Mounting bracket; 42. Rotating fork; 43. Roller; 5. Inner frame; 51. First adjustment frame; 511. Elastic adjustment member; 5111. First adjustment screw; 5112. First adjustment nut; 5113. Elastic structure; 512. Inner mounting tube; 52. Second adjustment frame; 521. Second adjustment screw; 522. Second adjustment nut; 523. Inner adjustment tube; 524. Inner guide rod; 6. Inner positioning wheel; 7. Trimming mechanism; 71. Fixed arm; 72. Rotating arm; 73. Drive; 74. Wheel trimmer; 8. Curbstone; 9. Groove. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0020] It should be noted that when an element is referred to as being “mounted on,” “fixed on,” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0022] like Figures 1 to 3As shown, the present application provides a municipal green belt pruning device, including a mobile mechanism 1, a mounting frame 2, an outer frame 3, at least one outer positioning wheel 4, an inner frame 5, at least one inner positioning wheel 6 and a pruning mechanism 7. The mounting frame 2 is mounted on the mobile mechanism 1. The outer frame 3 is mounted on one end of the mounting frame 2 close to the curb 8. At least one outer positioning wheel 4 is mounted on the outer frame 3 and abuts against the side of the curb 8 facing away from the green belt. The inner frame 5 is mounted on the outer frame 3. At least one inner positioning wheel 6 is mounted on the inner frame 5 and abuts against the top of the curb 8 facing the green belt. The pruning mechanism 7 is mounted on the mobile mechanism 1.

[0023] The present application provides a municipal green belt pruning device. During the pruning process, the outer positioning wheel 4 abuts against the outer side of the curb 8, and the inner positioning wheel 6 abuts against the inner top of the curb 8. Under the action of the curb 8, the movement of the mobile mechanism 1 is guided, which helps to improve the stability of the pruning mechanism 7 during movement, thereby ensuring that the side profile of the green belt is roughly consistent with the profile of the curb 8, and the pruning is smooth. Compared with related technologies, it is less likely to deviate, which helps to improve the pruning quality of the pruning mechanism 7. Furthermore, during use, the inner positioning wheel 6 abuts against the inner top of the curb 8. Compared with the inner positioning wheel 6 abutting against the inner side of the curb 8 (i.e., the side of the curb 8 buried in the soil), it can prevent the soil from interfering with the inner positioning wheel 6, resulting in the inner positioning wheel 6 being unable to abut against the inner side of the curb 8.

[0024] In a preferred embodiment of this application, please refer to Figure 1 and Figure 2 The inner frame 5 includes a first adjusting frame 51 and a second adjusting frame 52. The first adjusting frame 51 is installed on the outer frame 3, and the second adjusting frame 52 is installed on the first adjusting frame 51. It moves along the first direction driven by the first adjusting frame 51 and is configured to drive at least one inner positioning wheel 6 to move along the second direction.

[0025] It should be noted that the first direction mentioned above and below refers to the bidirectional direction of the shortest connection line between the mounting rack 2 and the outer rack 3, as shown in FIG. Figure 1 The second direction above and below refers to the bidirectional direction of the shortest connection line between the moving mechanism 1 and the outer frame 3, as shown in FIG. Figure 1 The Y-axis shown in .

[0026] With this arrangement, the first adjustment frame 51 allows the position of the inner positioning wheel 6 in the first direction to be adjusted, thereby adjusting the distance between the inner positioning wheel 6 and the outer positioning wheel 4. This allows the device to be used for curbstones 8 of varying widths, thereby increasing the applicability of the municipal green belt trimming device. The second adjustment frame 52 allows the position of the inner positioning wheel 6 in the second direction to be adjusted, thereby adjusting the height of the inner positioning wheel 6. This allows the device to be used for curbstones 8 of varying heights, thereby further increasing the applicability of the municipal green belt trimming device.

[0027] In a preferred embodiment of this application, please refer to Figure 1 and Figure 2 The outer frame 3 includes an outer mounting tube 31, which is mounted on the mounting frame 2. The first adjustment frame 51 includes at least one elastic adjustment member 511 and an inner mounting tube 512. The at least one elastic adjustment member 511 is mounted on the outer mounting tube 31. The inner mounting tube 512 is mounted on the at least one elastic adjustment member 511 and moves in a first direction driven by the elastic adjustment member 511. The inner mounting tube 512 is located on the side of the outer mounting tube 31 facing away from the mounting frame 2.

[0028] It should be noted that the curbstones 8 are affected by external environmental factors. During use, the curbstones 8 themselves may be damaged to varying degrees, and even adjacent curbstones 8 may deviate from each other. During pruning, the damage to the curbstones 8 themselves may affect the movement and pruning of the municipal green belt pruning equipment.

[0029] With this arrangement, the elastic adjustment member 511 allows the second adjustment frame 52 to be elastically mounted on the first adjustment frame 51, providing flexible adjustment space for the second adjustment frame 52. This ensures that the municipal green belt trimming device can function properly even if the curb 8 itself is damaged or misaligned, while also maintaining trimming quality.

[0030] In a preferred embodiment of the present application, see Figure 1 、 Figure 2 and Figure 4The elastic adjustment member 511 includes a first adjustment screw 5111, two first adjustment nuts 5112, and two elastic structures 5113. The first adjustment screw 5111 is mounted on the inner mounting tube 512 and passes through the outer mounting tube 31. The two first adjustment nuts 5112 are both threaded onto the first adjustment screw 5111 and are disposed on both sides of the outer mounting tube 31 along the first direction. The two elastic structures 5113 are both sleeved on the first adjustment screw 5111 and are disposed on both sides of the outer mounting tube 31, and are both held between the outer mounting tube 31 and the first adjustment nuts 5112. The two first adjustment nuts 5112 being disposed on both sides of the outer mounting tube 31 along the first direction means that one of the first adjustment nuts 5112 is disposed on the side of the outer mounting tube 31 facing the mounting frame 2 along the first direction, and the other first adjustment nut 5112 is disposed on the side of the outer mounting tube 31 facing the inner mounting tube 512 along the first direction. Similarly, the two elastic structures 5113 are arranged on both sides of the outer mounting tube 31, which means that: one elastic structure 5113 is arranged on the side of the outer mounting tube 31 toward the mounting frame 2 along the first direction, and the other first adjusting nut 5112 is arranged on the side of the outer mounting tube 31 toward the inner mounting tube 512 along the first direction.

[0031] This arrangement, under the action of the two elastic structures 5113, allows for flexible adjustment of both the outer positioning wheel 4 and the inner positioning wheel 6. During movement, the distance between the outer positioning wheel 4 and the inner positioning wheel 6 can be fine-tuned, and the outer positioning wheel 4 and the inner positioning wheel 6 can always abut against the curb 8, thereby preventing the municipal green belt trimming device from getting stuck and ensuring its stability.

[0032] The two first adjusting nuts 5112 enable the first adjusting screw 5111 to move relative to the outer mounting tube 31, thereby adjusting the distance between the outer positioning wheel 4 and the inner positioning wheel 6. This allows for adaptability to curbs 8 of varying widths, broadening its applicability. Furthermore, the two first adjusting nuts 5112 prevent the first adjusting screw 5111 from dislodging from the outer mounting tube 31, thereby improving the structural stability between the outer frame 3 and the inner frame 5, and also between the outer positioning wheel 4 and the inner positioning wheel 6.

[0033] Optionally, the elastic structure 5113 is configured as a spring or a spring.

[0034] In a preferred embodiment of this application, please refer to Figure 1 、 Figure 2 and Figure 4The second adjustment frame 52 includes a second adjusting screw 521, two second adjusting nuts 522, an inner adjusting tube 523 and at least one inner guide rod 524. The second adjusting screw 521 is installed on the inner adjusting tube 523 and passes through the inner mounting tube 512. The two second adjusting nuts 522 are both screwed to the second adjusting screw 521 and are respectively arranged on both sides of the inner mounting tube 512 along the second direction. The inner adjusting tube 523 is installed at one end of the second adjusting screw 521 close to the curb 8. At least one inner guide rod 524 is installed on the inner adjusting tube 523 and passes through the inner mounting tube 512.

[0035] With this arrangement, the second adjusting screw 521 and the two second adjusting nuts 522 can adjust the distance between the inner adjusting tube 523 and the inner mounting tube 512, thereby adjusting the distance of the inner positioning wheel 6 in the second direction, that is, the height of the inner positioning wheel 6. This allows the municipal green belt trimming device to be used for curbs 8 of different heights, helping to further expand the applicability of the municipal green belt trimming device. The inner guide rod 524 can guide the movement of the inner adjusting tube 523 in the second direction, helping to improve the movement stability of the inner adjusting tube 523 in the second direction.

[0036] In a preferred embodiment of this application, please refer to Figure 1 、 Figure 2 and Figure 4 The outer frame 3 includes an outer mounting tube 31, an outer adjusting screw 32, two outer adjusting nuts 33, an outer adjusting tube 34 and at least one outer guide rod 35. The outer mounting tube 31 is mounted on the mounting frame 2, the outer adjusting screw 32 is mounted on the outer mounting tube 31, the two outer adjusting nuts 33 are both screwed to the outer adjusting screw 32 and are respectively arranged on both sides of the outer mounting tube 31 along the second direction, the outer adjusting tube 34 is mounted on the side of the outer adjusting screw 32 close to the curb 8, and at least one outer guide rod 35 is mounted on the outer adjusting tube 34 and passes through the outer mounting tube 31.

[0037] With this arrangement, the outer adjustment screw 32 and the two outer adjustment nuts 33 can adjust the distance between the outer adjustment tube 34 and the outer mounting tube 31, thereby adjusting the distance of the outer positioning wheel 4 in the second direction, that is, the height of the outer positioning wheel 4. This allows the municipal green belt trimming device to be used for curbs 8 of different heights, helping to further expand the applicability of the municipal green belt trimming device. The outer guide rod 35 can guide the movement of the outer adjustment tube 34 in the second direction, helping to improve the movement stability of the outer adjustment tube 34 in the second direction.

[0038] In a preferred embodiment of the present application, see Figure 3, the inner positioning wheel 6 is provided with a groove 9.

[0039] With such an arrangement, when the top of the curb 8 is relatively sharp, the inner positioning wheel 6 can be clamped to the top of the curb 8 through the groove 9. Compared with the existing technology, the stability between the inner positioning wheel 6 and the curb 8 can be increased, thereby increasing the mobile stability of the municipal green belt pruning equipment.

[0040] In a preferred embodiment of this application, please refer to Figure 1 and Figure 4 The outer positioning wheel 4 includes a mounting support 41, a rotating fork 42 and two rollers 43. The mounting support 41 is mounted on the outer frame 3, the rotating fork 42 is hinged to the mounting support 41, and the two rollers 43 are both mounted on the rotating fork 42.

[0041] This arrangement, using two rollers 43, enables the outer positioning wheel 4 to move more smoothly on the surface of the curb 8 compared to using only one roller 43. Under the action of the mounting bracket 41 and the rotating fork 42, when the municipal green belt passes through a curve, the outer positioning wheel 4 can rotate relative to the outer frame 3, allowing the municipal green belt to be trimmed even when the green belt passes through the curve, with high trimming quality and greatly improved convenience.

[0042] In a preferred embodiment of this application, please refer to Figure 1 The trimming mechanism 7 includes a fixed arm 71, a rotating arm 72, a driver 73 and a wheel trimmer 74. The fixed arm 71 is installed on the mobile mechanism 1. The rotating arm 72 is hinged to the end of the fixed arm 71 away from the mobile mechanism 1. The driver 73 is hinged between the fixed arm 71 and the rotating arm 72, and can drive the rotating arm 72 to rotate relative to the fixed arm 71 about a third direction. The wheel trimmer 74 is installed at the end of the rotating arm 72 away from the fixed arm 71.

[0043] It should be noted that the third direction mentioned above and below refers to the bidirectional direction of the shortest connection line between the mounting frame 2 and the trimming mechanism 7, as shown in FIG. Figure 1 The Z axis shown in .

[0044] With this arrangement, the driver 73 can drive the rotating arm 72 to rotate relative to the fixed arm 71, thereby adjusting the posture of the wheel trimmer 74 so that the municipal green belt trimming device can be used for green belts with inclined sides.

[0045] Optionally, the driver 73 is configured as a hydraulic cylinder.

[0046] In a preferred embodiment of the present application, see Figure 1 , the rotating arm 72 is configured as a telescopic arm.

[0047] In this way, the rotating arm 72 is set as a telescopic arm, which can control the distance between the wheel trimmer 74 and the green belt, so that the wheel trimmer 74 can trim according to the predetermined trimming route, and can also avoid the situation where the distance between the wheel trimmer 74 and the green belt is too large, resulting in the wheel trimmer 74 being unable to trim the green belt.

[0048] Optionally, the telescopic arm is configured as a hydraulic telescopic cylinder.

[0049] The working principle of the municipal green belt pruning equipment provided in this application is: before pruning, the outer frame 3, the first adjustment frame 51 and the second adjustment frame 52 are adjusted according to the specifications of the green belt and the specifications of the curb 8, so that the outer positioning wheel 4 is against the side of the curb 8 facing away from the soil, and the inner positioning wheel 6 is against the top of the curb 8 close to the soil.

[0050] When it is necessary to raise the outer positioning wheel 4, the staff rotates the outer mounting tube 31 toward the outer adjusting nut 33 on the side of the outer adjusting tube 34, so that the outer adjusting nut 33 facing the side of the outer adjusting tube 34 gradually moves toward the outer adjusting tube 34. The staff then lifts the outer adjusting screw 32 to move the outer adjusting tube 34 toward the outer mounting tube 31. The staff finally rotates the outer adjusting nut 33 on the side of the outer mounting tube 31 away from the outer adjusting tube 34, so that the outer adjusting nut 33 facing away from the outer adjusting tube 34 gradually moves toward the outer mounting tube 31.

[0051] When it is necessary to lower the outer positioning wheel 4, the staff rotates the outer adjusting nut 33 on the side of the outer mounting tube 31 facing away from the outer adjusting tube 34, so that the outer adjusting nut 33 facing away from the outer adjusting tube 34 gradually moves away from the outer adjusting tube 34. The staff then presses down the outer adjusting screw 32 to move the outer adjusting tube 34 away from the outer mounting tube 31. The staff finally rotates the outer adjusting nut 33 on the side of the outer mounting tube 31 toward the side of the outer adjusting tube 34, so that the outer adjusting nut 33 facing the side of the outer adjusting tube 34 gradually moves toward the outer mounting tube 31.

[0052] When it is necessary to raise the inner positioning wheel 6, the staff rotates the inner mounting tube 512 toward the second adjusting nut 522 on the side of the inner adjusting tube 523, so that the second adjusting nut 522 facing the side of the inner adjusting tube 523 gradually moves toward the inner adjusting tube 523. The staff then lifts the second adjusting screw 521 to move the inner adjusting tube 523 toward the inner mounting tube 512. Finally, the staff rotates the inner mounting tube 512 away from the second adjusting nut 522 on the side of the inner adjusting tube 523, so that the second adjusting nut 522 facing the side of the inner adjusting tube 523 gradually moves toward the inner mounting tube 512.

[0053] When it is necessary to lower the inner positioning wheel 6, the staff rotates the second adjusting nut 522 on the inner mounting tube 512 facing away from the inner adjusting tube 523, so that the second adjusting nut 522 facing away from the inner adjusting tube 523 gradually moves away from the inner adjusting tube 523. The staff then presses down the second adjusting screw 521 to move the inner adjusting tube 523 away from the inner mounting tube 512. The staff finally rotates the second adjusting nut 522 on the inner mounting tube 512 toward the inner adjusting tube 523, so that the second adjusting nut 522 facing the inner adjusting tube 523 gradually moves toward the inner mounting tube 512.

[0054] When the distance between the outer positioning wheel 4 and the inner positioning wheel 6 needs to be increased, the staff rotates the two first adjusting nuts 5112 to gradually move the two first adjusting nuts 5112 away from the inner mounting tube 512 .

[0055] When the distance between the outer positioning wheel 4 and the inner positioning wheel 6 needs to be reduced, the staff rotates the two first adjusting nuts 5112 to gradually move the two first adjusting nuts 5112 toward the inner mounting tube 512 .

[0056] During the pruning process, the worker drives the mobile mechanism 1, and the mobile mechanism 1 drives the pruning mechanism 7 to move synchronously, thereby achieving pruning while moving.

[0057] The invention technology was summarized and designed by the Qingfeng Road (Shimentang Road-Lianjiang Road) road engineering project.

[0058] The one or more embodiments of this application are intended to encompass all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application should be included in the scope of protection of this application.

Claims

1. A municipal green belt pruning device, characterized in that: include: Mobile mechanism (1); A mounting frame (2) mounted on the moving mechanism (1); An outer frame (3) is mounted on one end of the mounting frame (2) close to the curb (8); At least one outer positioning wheel (4) is mounted on the outer frame (3) and is supported against the side of the curb (8) facing away from the green belt; An inner frame (5) mounted on the outer frame (3); At least one inner positioning wheel (6) is mounted on the inner frame (5) and abuts against the top of the curb (8) facing the green belt; A trimming mechanism (7) is mounted on the moving mechanism (1).

2. A municipal green belt pruning device as claimed in claim 1, characterized in that: The inner frame (5) comprises a first adjustment frame (51) and a second adjustment frame (52), wherein the first adjustment frame (51) is mounted on the outer frame (3), and the second adjustment frame (52) is mounted on the first adjustment frame (51), and moves along a first direction driven by the first adjustment frame (51), and is configured to be able to drive at least one of the inner positioning wheels (6) to move along a second direction.

3. A municipal green belt pruning device as claimed in claim 2, characterized in that: The outer frame (3) includes an outer mounting tube (31), and the outer mounting tube (31) is mounted on the mounting frame (2); The first adjustment frame (51) comprises at least one elastic adjustment member (511) and an inner mounting tube (512), at least one elastic adjustment member (511) being mounted on the outer mounting tube (31), and the inner mounting tube (512) being mounted on at least one elastic adjustment member (511) and moving in a first direction driven by the elastic adjustment member (511), and being located on a side of the outer mounting tube (31) facing away from the mounting frame (2).

4. A municipal green belt pruning device as claimed in claim 3, characterized in that: The elastic adjustment member (511) comprises a first adjustment screw (5111), two first adjustment nuts (5112) and two elastic structures (5113); the first adjustment screw (5111) is mounted on the inner mounting tube (512) and is passed through the outer mounting tube (31); the two first adjustment nuts (5112) are both screwed onto the first adjustment screw (5111) and are respectively arranged on both sides of the outer mounting tube (31) along a first direction; the two elastic structures (5113) are both sleeved on the first adjustment screw (5111) and are respectively arranged on both sides of the outer mounting tube (31), and are both held between the outer mounting tube (31) and the first adjustment nuts (5112).

5. A municipal green belt pruning device as claimed in claim 3, characterized in that: The second adjustment frame (52) comprises a second adjustment screw (521), two second adjustment nuts (522), an inner adjustment tube (523) and at least one inner guide rod (524); the second adjustment screw (521) is mounted on the inner adjustment tube (523) and is passed through the inner mounting tube (512); the two second adjustment nuts (522) are both screwed to the second adjustment screw (521) and are respectively arranged on both sides of the inner mounting tube (512) along the second direction; the inner adjustment tube (523) is mounted on one end of the second adjustment screw (521) close to the curb (8); and the at least one inner guide rod (524) is mounted on the inner adjustment tube (523) and is passed through the inner mounting tube (512).

6. A municipal green belt pruning device as claimed in claim 1, characterized in that: The outer frame (3) comprises an outer mounting tube (31), an outer adjusting screw (32), two outer adjusting nuts (33), an outer adjusting tube (34) and at least one outer guide rod (35); the outer mounting tube (31) is mounted on the mounting frame (2); the outer adjusting screw (32) is mounted on the outer mounting tube (31); the two outer adjusting nuts (33) are both screwed to the outer adjusting screw (32) and are respectively arranged on both sides of the outer mounting tube (31) along the second direction; the outer adjusting tube (34) is mounted on a side of the outer adjusting screw (32) close to the curb (8); and at least one outer guide rod (35) is both mounted on the outer adjusting tube (34) and is passed through the outer mounting tube (31).

7. A municipal green belt pruning device according to any one of claims 1 to 6, characterized in that: The inner positioning wheel (6) is provided with a groove (9).

8. The municipal green belt pruning device according to claim 1, characterized in that: The outer positioning wheel (4) comprises a mounting support (41), a rotating fork (42) and two rollers (43); the mounting support (41) is mounted on the outer frame (3); the rotating fork (42) is hinged to the mounting support (41); and the two rollers (43) are both mounted on the rotating fork (42).

9. The municipal green belt pruning device according to claim 1, characterized in that: The trimming mechanism (7) comprises a fixed arm (71), a rotating arm (72), a driver (73) and a wheel trimmer (74); the fixed arm (71) is mounted on the moving mechanism (1); the rotating arm (72) is hinged to one end of the fixed arm (71) away from the moving mechanism (1); the driver (73) is hinged between the fixed arm (71) and the rotating arm (72) and is capable of driving the rotating arm (72) to rotate relative to the fixed arm (71) about a third direction; and the wheel trimmer (74) is mounted on one end of the rotating arm (72) away from the fixed arm (71).

10. A municipal green belt pruning device as claimed in claim 9, characterized in that: The rotating arm (72) is configured as a telescopic arm.

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