Protective pruning equipment for municipal greening

Abstract

The utility model belongs to the technical field of greening operation equipment, and particularly relates to protective pruning equipment for municipal greening. The trimming equipment structurally comprises a machine body and a protruding tool bit, and further comprises a fixing ring arranged on the machine body and connected with the protruding tool bit in a sleeving mode, and a protection pipe arranged on the inner side face of the fixing ring and used for being connected with the protruding tool bit in a sleeving mode. The auxiliary protection column body and the fixing ring are arranged on the same side face of the machine body, and the auxiliary protection column body is used for exposing the protruding tool bit in the mode that the auxiliary protection column body and the fixing ring are sleeved with the protection pipe which is taken down from the fixing ring. The protective device has the beneficial effects that the protective device at least has a main protective function, the protective device can be completely closed during use, namely, the whole protruding tool bit is exposed, the protective device can be completely triggered during standby use, namely, the whole protruding tool bit is covered, and the practicability and comprehensiveness of the protective function are guaranteed.

Description

Technical Field

[0001] This application belongs to the technical field of greening operation equipment, and in particular relates to a protective pruning equipment for municipal greening. Background Technology

[0002] The main function of existing greening pruning equipment is to cut relatively long branches and leaves, so that branches do not extend too far and obstruct the road, and the surface of shrubs remains relatively neat.

[0003] On the other hand, the aforementioned trimming equipment mainly consists of a body, a rotating blade, a handle, and a protective cover. The handle is located above the body and / or on one side, while the rotating blade and protective cover are on the other side of the body, with the protective cover positioned above the rotating blade, thus achieving effective rotating shearing and appropriate blade protection.

[0004] For example, Chinese utility model patent with authorization announcement number CN222465433U and authorization announcement date of 2025.02.14 discloses a pruning device for municipal greening, whose main structural components include: body, pruning blade, shell, protective mechanism, main protective plate, rotating rod, side protective plate, adjustment mechanism, main handle, and front handle.

[0005] The advantages of the pruning device in this utility model patent are: it makes it less likely for workers to come into contact with the pruning blades, reducing the risk of the pruning blades colliding with external objects; at the same time, it can also block splashed branches and leaves during the pruning of tree crowns, greatly improving the comfort of workers when pruning tree crowns.

[0006] However, in actual use, this pruning device still has at least the following practical problems:

[0007] First, when the device is in use, the protective mechanism will block the bushes, causing the pruning blades to cut only from top to bottom in small amounts and multiple times, making it difficult to enter from the side of the bushes and making it impossible to perform a one-time, long-segment cutting operation.

[0008] Secondly, when the device is not in use, the protective mechanism cannot adequately cover the trimmer blade, leaving the bottom exposed, which is impractical and unsafe. Utility Model Content

[0009] This application provides a protective pruning device for municipal greening, and the technical problem to be solved is: how to make the protective function of the pruning device both practical and comprehensive.

[0010] The technical solution adopted by this application to solve the above problems is: a protective pruning equipment for municipal greening, the structure of which includes a body and a protruding blade, a fixing ring disposed on the body and sleeved on the protruding blade, a protective tube disposed on the inner side of the fixing ring and used to sleeve the protruding blade, and an auxiliary protective column disposed on the same side of the body as the fixing ring and used to expose the protruding blade by sleeved on the protective tube that has been removed from the fixing ring.

[0011] A further preferred technical solution is that: the fixing ring is an internally threaded ring, the auxiliary protective column is a threaded column, and the protective tube is provided with an external thread section and an internal thread section for screwing the fixing ring and the auxiliary protective column, respectively.

[0012] A further preferred technical solution is that: the number of auxiliary protective columns is two, and the fixing ring is disposed between the two auxiliary protective columns.

[0013] A further preferred technical solution is that the protective tube is also provided with a fixed-point addition hole for adding lubricant to the protruding cutter head.

[0014] A further preferred technical solution is that the external thread section and the internal thread section are located at the same end of the protective tube, and the fixed-point addition hole is located at the other end of the protective tube.

[0015] A further preferred technical solution is that the protective tube is also provided with an end face axial cut and a radial cut for forming a cover portion for shielding and a bottom portion for removal, and the end face axial cut and the radial cut are interconnected.

[0016] A further preferred technical solution is that the cross-sectional shape of both the upper cover portion for shielding and the lower bottom portion for removal is a fan-shaped ring, and the central angle of the cross-section of the upper cover portion for shielding is ≤60°.

[0017] A further preferred technical solution is that the length of the end face-axial cut is 70-90% of the length of the protective tube.

[0018] A further preferred technical solution is that the radial cut is provided with a fixing groove and a plug for connecting the upper cover part for shielding and the lower bottom part for removal.

[0019] A further preferred technical solution is that the external thread segment and the internal thread segment are located at the same end of the protective tube, and the starting end face of the end face-axial cut is located at the other end of the protective tube.

[0020] The beneficial effects of this application include at least the following three points.

[0021] First, the main protective function of this trimming equipment can be completely closed when in use, that is, the entire protruding blade head is exposed, and can be fully activated when not in use, that is, the entire protruding blade head is covered, ensuring the practicality and comprehensiveness of the protective function.

[0022] Secondly, the trimming equipment also has a secondary protective function, namely: when in use, the protective tube can be located between the protruding blade and the operator, providing lateral protection.

[0023] Third, the protective tube itself is detachable, which can provide a shielding and protective effect, preventing the cut branches and leaves from flying in large quantities. This is the third protective function. Attached Figure Description

[0024] Figure 1 This is a structural diagram of the present application, corresponding to the main protective functions mentioned above.

[0025] Figure 2 This is a schematic diagram of the location and structure of the auxiliary protective column in this application.

[0026] Figure 3 This is a schematic diagram of another location for the auxiliary protective column in this application.

[0027] Figure 4 This is a schematic diagram of the structure of the protective tube in this application.

[0028] Figure 5 This is a schematic diagram showing the location where the lubricant is added in this application.

[0029] Figure 6 This is a top-down view illustrating how the protective tube triggers the aforementioned secondary protection function, corresponding to the aforementioned secondary protection function.

[0030] Figure 7 This is a schematic diagram showing the location of the end face-axial cut and radial cut in this application.

[0031] Figure 8 This is a schematic diagram showing the position and shape of the insertion post in this application.

[0032] Figure 9 This is a schematic diagram of the shape of the cover portion used for shielding in this application.

[0033] Figure 10 This is a schematic diagram illustrating the usage of the cover portion for shielding in this application, corresponding to the third protective function mentioned above.

[0034] The meanings of the markings in the diagram are as follows.

[0035] a) Green belt, b) Operator position, c) Equipment movement direction, d) Direction of flying branches and leaves, f) Lubricant addition location;

[0036] 11. Body, 12. Protruding cutter head, 12-1. Cutter head holder, 12-2. Chain, 12-3. Blade, 13. Cutter head outlet, 14. Handle, 15. Motor compartment;

[0037] 1. Fixing ring; 2. Protective tube; 3. Auxiliary protective column; 4. External thread section; 5. Fixed point addition hole; 6. End face - axial cut; 7. Radial cut; 8. Upper cover part for shielding; 9. Lower bottom part for removal; 10. Fixing groove; 11. Insertion post. Detailed Implementation

[0038] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0039] like Figures 1-10 As shown, a protective pruning device for municipal greening includes a body 11 and a protruding blade 12. It also includes a fixing ring 1 disposed on the body 11 and fitted onto the protruding blade 12, a protective tube 2 disposed on the inner side of the fixing ring 1 and fitted onto the protruding blade 12, and an auxiliary protective column 3 disposed on the same side of the body 11 as the fixing ring 1 and fitted onto the protective tube 2 which has been removed from the fixing ring 1 to expose the protruding blade 12.

[0040] In this embodiment, the practical advantage of the protective function of the pruning equipment is reflected in the fact that, during use, the protective tube 2 can be completely removed from the fixing ring 1 and completely separated from the body 11. At this time, the protruding blade 12 is fully exposed, and there is no structure on the pruning equipment that blocks the bushes. The protruding blade 12 can be used to prune directly in the middle of the bushes without having to perform the cutting action from top to bottom in small amounts and multiple times.

[0041] Furthermore, the comprehensive protective advantage of this trimming equipment is reflected in the following: when in standby mode, the protective tube 2, installed on the fixing ring 1, can completely cover the protruding blade head 12, ensuring its safety in standby mode. This makes the protection of the protruding blade head 12 sufficiently comprehensive. For details, please refer to the appendix. Figure 1 .

[0042] The comprehensive protective advantage of this trimming equipment is also reflected in the following: During use, the protective tube 2 can be completely removed from the fixing ring 1, but is still fitted onto the auxiliary protective column 3. At this time, the protective tube 2 is located between the protruding cutter head 12 and the operator, providing a lateral blocking protection effect. For details, please refer to the appendix. Figure 6 .

[0043] The machine body 11 is equipped with a blade outlet 13, two handles 14, and a cover for a motor compartment 15. The machine body 11 contains a motor for driving the protruding blade 12, ensuring that the commonly used rotary shearing operation of the protruding blade 12 can be effectively performed.

[0044] Furthermore, both the body 11 and the protruding cutter head 12 are commercially available components, and their working principle is based on existing technology. One structural configuration of the protruding cutter head 12 includes: a cutter head holder 12-1, a chain 12-2, and a blade 12-3.

[0045] On the other hand, the body 11, the fixing ring 1, and the auxiliary protective column 3 are integrally formed and are made of engineering plastic or metal. The fixing ring 1 is a circular ring, the cutter head outlet 13 is located inside the fixing ring 1, and the protective tube 2 is a circular tube with a length greater than the length of the exposed section of the protruding cutter head 12 at the cutter head outlet 13.

[0046] Finally, when the protective tube 2 is sleeved on the auxiliary protective column 3, the protective tube 2 is separated from the blade outlet 13, and in the direction of movement of the trimming equipment, the protective tube 2 is located behind the blade outlet 13, always between the blade outlet 13 and the operator position b, thereby enabling the above-mentioned secondary protective function to take effect.

[0047] The fixing ring 1 is an internally threaded ring, the auxiliary protective column 3 is a threaded column, and the protective tube 2 is provided with an external thread section 4 and an internal thread section for screwing the fixing ring 1 and the auxiliary protective column 3, respectively.

[0048] In this embodiment, the number of auxiliary protective columns 3 can be one, which has the advantage that the size of the body 11 is relatively small.

[0049] The number of auxiliary protective columns 3 is two, and the fixing ring 1 is disposed between the two auxiliary protective columns 3.

[0050] In this embodiment, the second arrangement of the auxiliary protective column 3 is that there are two of them. The advantage of this arrangement is that, regardless of whether the protruding cutter head 12 is positioned to the left or right front of the operator, the protective tube 2 can be positioned between the protruding cutter head 12 and the operator. This ensures that the secondary protective function is effective for both right-handed and left-handed operators, and the protective tube 2 only needs to be installed in different positions between the two auxiliary protective columns 3.

[0051] The protective tube 2 is also provided with a fixed-point addition hole 5 for adding lubricant to the protruding cutter head 12.

[0052] In this embodiment, the installation endpoint of the protective tube 2 on the fixing ring 1 is unique, that is, the end face of the former abuts against the outer surface of the body 11. At this time, the position of the fixed-point addition hole 5 relative to the protruding cutter head 12 is also unique. Therefore, the fixed-point addition hole 5 makes the lubricant addition operation of the cutter head more precise and convenient. This trimming equipment can even perform the above-mentioned lubricant addition operation in a non-stop state with vibration.

[0053] In addition, the lubricant addition point f can be between the cutter head holder 12-1 and the chain 12-2, or at the driven shaft position of the cutter head holder 12-1.

[0054] The external thread section 4 and the internal thread section are located at the same end of the protective tube 2, and the fixed-point addition hole 5 is located at the other end of the protective tube 2.

[0055] In this embodiment, the drive shaft of the cutter head holder 12-1 is located inside the machine body 11, and the lubricant addition position f is located at one end of the cutter head holder 12-1 away from the machine body 11.

[0056] The protective tube 2 is also provided with an end face axial cut 6 and a radial cut 7 for forming an upper cover portion 2-1 for shielding and a lower bottom portion 2-2 for removal, and the end face axial cut 6 and the radial cut 7 are interconnected.

[0057] In this embodiment, the overall shape of the end face-axial cut 6 and the radial cut 7 is "L-shaped", and the front view of the shielding cover part 2-1 is also generally "L-shaped". The length of the end face-axial cut 6 is less than the length of the protective tube 2.

[0058] The initial opening end face of the end face-axial cut 6 is different from the end face of the protective tube 2 where the external thread section 4 and the internal thread section are located. The end face-axial cut 6 and the radial cut 7 are not located on the external thread section 4 and the internal thread section. For details, please refer to the appendix. Figures 7-10 .

[0059] When the pruning equipment is in normal use, only the lower part 2-2 of the protective tube 2 can be removed. At this time, the protective effect of the protective tube 2 is similar to the "semi-enclosed" protective effect in the prior art, which can appropriately separate the protruding blade 12 from the operator and can appropriately prevent branches and leaves from flying.

[0060] Accordingly, since the fully screwed installation endpoint of the protective tube 2 on the fixing ring 1 is unique, when the protective tube 2 is correctly installed, the shielding upper cover portion 2-1 will definitely be located directly above the protruding blade head 12. Therefore, the aforementioned protective effect against flying branches and leaves is at its optimal state whenever it is triggered. At this time, the lower part 2-2 for removal is removed and left idle.

[0061] The cross-sectional shape of the upper cover portion 2-1 for shielding and the lower bottom portion 2-2 for removal are both fan-shaped, and the central angle of the cross-section of the upper cover portion 2-1 for shielding is ≤60°.

[0062] In this embodiment, the shielding cover portion 2-1 is specifically composed of a circular tube section and a straight plate section with a fan-shaped cross-section. The former is the fixed position for the latter, while the latter is the effective position for covering and protecting the protruding blade head 12 from directly above.

[0063] In this design, the two sides of the straight plate portion of the aforementioned fan-shaped ring are higher than the protruding blade head 12, ensuring that the upper cover portion 2-1 for shielding fully and appropriately exposes the protruding blade head 12, without significantly affecting the trimming operation of the protruding blade head 12. For details, please refer to the attached document. Figure 10 The smaller the central angle of the cross-section, the lower the degree of protection. Correspondingly, the central angle of the cross-section cannot be too small, for example, it cannot be less than 45°, otherwise the effective area of ​​the protection function will be too small.

[0064] The length of the end face-axial cut 6 is 70-90% of the length of the protective tube 2.

[0065] In this embodiment, if the trimming equipment is used normally by removing only the lower part 2-2 for removal, the exposed portion of the protruding blade 12 at the lower part 2-2 for removal is the effective trimming length of the protruding blade 12.

[0066] Therefore, the length of the end face-axial cut 6 needs to be relatively large without affecting the installation stability of the cover portion 2-1.

[0067] The radial cutout 7 is provided with a fixing groove 2-3 and a plug post 204 for connecting the upper cover part 2-1 for shielding and the lower bottom part 2-2 for removal.

[0068] In this embodiment, the insertion post 204 is disposed on the lower bottom portion 2-2 for removal, and the fixing groove 2-3 can be disposed on the end face-axial cutout 6 or radial cutout 7, so as to ensure sufficient insertion stability between the upper cover portion 2-1 for shielding and the lower bottom portion 2-2 for removal.

[0069] The external thread section 4 and the internal thread section are located at the same end of the protective tube 2, and the starting end face of the end face-axial cut 6 is located at the other end of the protective tube 2.

[0070] In this embodiment, the starting end face is the end face with the fixed-point addition hole 5, so that whether the protective tube 2 is used in its entirety or in part, it does not affect the auxiliary positioning function of the fixed-point addition hole 5 for lubricant addition operation. The fixed-point addition hole 5 is set on the shielding cover part 2-1.

[0071] Finally, the word "for" above means that it can be used, not just for. For example, the pruning equipment can also be used for landscaping, agricultural landscaping, and commercial landscaping.

[0072] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. A protective pruning device for municipal greening, comprising a body (11) and a protruding blade (12), characterized in that: It also includes a retaining ring (1) disposed on the body (11) and fitted onto the protruding cutter head (12), a protective tube (2) disposed on the inner side of the retaining ring (1) and fitted onto the protruding cutter head (12), and an auxiliary protective column (3) disposed on the same side of the body (11) as the retaining ring (1) and fitted onto the protective tube (2) that has been removed from the retaining ring (1) to expose the protruding cutter head (12).

2. The protective pruning equipment for municipal greening as described in claim 1, characterized in that: The fixing ring (1) is an internally threaded ring, the auxiliary protective column (3) is a threaded column, and the protective tube (2) is provided with an externally threaded section (4) and an internally threaded section for screwing the fixing ring (1) and the auxiliary protective column (3) respectively.

3. The protective pruning equipment for municipal greening as described in claim 1, characterized in that: The number of auxiliary protective columns (3) is two, and the fixing ring (1) is set between the two auxiliary protective columns (3).

4. A protective pruning device for municipal greening according to claim 2, characterized in that: The protective tube (2) is also provided with a fixed-point addition hole (5) for adding lubricant to the protruding cutter head (12).

5. A protective pruning device for municipal greening according to claim 4, characterized in that: The external thread section (4) and the internal thread section are located at the same end of the protective tube (2), and the fixed-point addition hole (5) is located at the other end of the protective tube (2).

6. A protective pruning device for municipal greening according to claim 2, characterized in that: The protective tube (2) is also provided with an end face axial cut (6) and a radial cut (7) for forming a cover portion (2-1) for shielding and a bottom portion (2-2) for removal, and the end face axial cut (6) and the radial cut (7) are interconnected.

7. A protective pruning device for municipal greening according to claim 6, characterized in that: The cross-sectional shape of the upper cover part (2-1) for shielding and the lower bottom part (2-2) for removal are both fan-shaped, and the central angle of the cross-section of the upper cover part (2-1) for shielding is ≤60°.

8. A protective pruning device for municipal greening according to claim 6, characterized in that: The length of the end face-axial cut (6) is 70-90% of the length of the protective tube (2).

9. A protective pruning device for municipal greening according to claim 6, characterized in that: The radial cut (7) is provided with a fixing groove (2-3) and a plug post (204) for connecting the upper cover part (2-1) for shielding and the lower bottom part (2-2) for removal.

10. A protective pruning device for municipal greening according to claim 6, characterized in that: The external thread section (4) and the internal thread section are located at the same end of the protective tube (2), and the starting end face of the end face-axial cut (6) is located at the other end of the protective tube (2).

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