Multifunctional pruning device for landscaping maintenance

Abstract

The application belongs to the technical field of landscaping, and discloses a multifunctional pruning device for landscaping maintenance, which comprises a shell, a rotating disc and a driving mechanism, the shell is provided with a first placing hole, the rotating disc is provided with a second placing hole, the rotating disc is rotationally connected to the shell, the projection of the second placing hole in the extension direction of the rotating axis of the rotating disc has a first working position which overlaps with the projection of the first placing hole in the extension direction of the rotating axis, and a second working position which is dislocated with the projection of the first placing hole in the extension direction of the rotating axis, and a plurality of cutters are arranged on the hole wall of the second placing hole in the direction perpendicular to the rotating axis in intervals. The multifunctional pruning device for landscaping maintenance integrates multiple pruning functions, and a gardener only needs to carry one multifunctional pruning device for landscaping maintenance for different pruning processes, so that the space occupation is small, and the inconvenience caused to the work of the gardener is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of landscaping, and in particular to a multifunctional pruning device for landscaping maintenance. BACKGROUND

[0002] Plants planted in scenic spots, leisure resorts and various types of parks in urban and rural areas are collectively referred to as landscape plants. In the process of landscaping cultivation, pruning and shaping is an important method for plant maintenance and management. Pruning and shaping has the effects of maintaining good tree shape and vigorous growth of plants, ventilation and light penetration, preventing diseases and pests, saving nutrients, promoting flowering of flowering shrubs, maintaining plant height, and promoting regeneration.

[0003] In the prior art, garden workers often need to use different pruning processes to maintain and manage landscape plants. However, the existing pruning tools have relatively single functions, i.e., traditional pruning tools can generally only realize one function, such as thinning shears that can only thin the branches of plants. For different pruning processes, garden workers need to carry multiple pruning tools, which occupy a large space and greatly inconvenience the work of garden workers.

[0004] Therefore, the above problems need to be solved. SUMMARY

[0005] The present application aims to provide a multifunctional pruning device for landscaping maintenance to solve the problem that garden workers need to carry multiple pruning tools for different pruning processes, which occupies a large space and greatly inconveniences the work of garden workers.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The present application provides a multifunctional pruning device for landscaping maintenance, comprising:

[0008] a shell having a first placement hole;

[0009] The rotating disc is provided with a second placement hole. The rotating disc and the shell are stacked, and the rotating disc is rotationally connected to the shell. The rotating axis of the rotating disc extends along the arrangement direction of the rotating disc and the shell. The first placement hole and the second placement hole are both arranged along the arrangement direction of the rotating disc and the shell, and both extend along a direction perpendicular to the arrangement direction of the rotating disc and the shell. The rotating axis of the rotating disc passes through the center line of the first placement hole and the second placement hole. The projection of the second placement hole in the extension direction of the rotating axis has a first working position that overlaps with the projection of the first placement hole in the extension direction of the rotating axis, and a second working position that is dislocated from the projection of the first placement hole in the extension direction of the rotating axis. A plurality of cutters are arranged on the hole wall of the second placement hole along a direction perpendicular to the rotating axis. The plurality of cutters are configured to perform different pruning operations on branches. The branches can pass through the first placement hole and the second placement hole along the extension direction of the rotating axis; and

[0010] The driving mechanism is configured to drive the rotating disc to rotate around the rotating axis.

[0011] Preferably, the end wall of one end of the first placement hole and the second placement hole in the direction perpendicular to the rotating axis is an arc surface. One of the cutters is a razor, which is arranged on the arc surface of the hole wall of the second placement hole.

[0012] Preferably, the rotating disc can rotate in a preset direction to switch the projection of the second placement hole in the extension direction of the rotating axis from the first working position to the second working position. The rotating disc is hollow inside. The arc surface of the hole wall of the second placement hole and the rotating disc are respectively provided with a first through hole and a second through hole. The shell is provided with a guide groove, which is an arc-shaped groove and is arranged around the outer periphery of the rotating axis. The upstream end of the guide groove in the preset direction is away from the rotating axis, and the downstream end of the guide groove in the preset direction is close to the rotating axis. The razor is provided with a guide rod, which passes through the first through hole in the extension direction of the rotating axis and extends into the guide groove. The first through hole extends along a direction perpendicular to the rotating axis, and the center line of the first through hole intersects with the rotating axis. The razor passes through the second through hole in the extension direction of the first through hole and extends into the first placement hole.

[0013] Preferably, the first placement hole and the second placement hole are respectively provided with a first opening and a second opening at one end away from the arc surface. The first opening is arranged on the edge of the shell, and the second opening is arranged on the edge of the rotating disc.

[0014] Preferably, a snap ring is arranged on the rotating disc, a snap groove is arranged on the shell, the snap ring and the snap groove are both arc-shaped and coaxially arranged, the snap ring is contained in the snap groove, both ends of the snap groove are communicated with the first placing hole, the length of the snap ring is less than or equal to the length of the snap groove, and greater than the length of the part where the extension line of the snap groove coincides with the first placing hole.

[0015] Preferably, the driving mechanism comprises:

[0016] a first handle arranged on the shell; and

[0017] a second handle having one end rotatably connected to the shell through a first rotating shaft and drivingly connected with the rotating disc, the second handle being capable of driving the rotating disc to rotate around the rotating axis when the second handle rotates towards the first handle, a first reset spring being connected between the second handle and the first handle and configured to reset the second handle.

[0018] Preferably, the driving mechanism further comprises:

[0019] a first driving wheel fixedly connected to the second handle and sleeved on the outer periphery of the first rotating shaft, a plurality of first gear teeth being arranged on the outer periphery of the first driving wheel around the first rotating shaft;

[0020] a second driving wheel rotatably connected to the shell through a second rotating shaft, the second rotating shaft being arranged in parallel with the first rotating shaft, a plurality of second gear teeth being arranged on the outer periphery of the second driving wheel around the second rotating shaft, the first driving wheel and the second driving wheel being meshed through the first gear teeth and the second gear teeth, the second driving wheel being provided with a mounting groove on the side away from the first driving wheel;

[0021] a pawl rotatably connected to the second driving wheel through a third rotating shaft, the third rotating shaft being arranged in parallel with the first rotating shaft and located in the mounting groove, the pawl having a third working position where one side of the pawl abuts against the groove wall of the mounting groove and an end of the pawl away from the third rotating shaft protrudes out of the mounting groove, and a fourth working position where the pawl is contained in the mounting groove, the outer periphery of the rotating disc being coaxially provided with a plurality of ratchet teeth with a tooth gap formed between adjacent two ratchet teeth, an end of the pawl away from the third rotating shaft protruding into the tooth gap when the pawl is in the third working position, the pawl being capable of pushing against the ratchet teeth to drive the rotating disc to rotate around the rotating axis when the second handle rotates towards the first handle, the pawl being capable of being pushed by the ratchet teeth from the third working position to the fourth working position when the second handle is reset;

[0022] A second reset spring configured to reset the pawl to the third working position when the pawl is disengaged from the ratchet at an end thereof away from the third rotation shaft; and

[0023] A limiting member configured to limit rotation of the rotating disc when the second handle is reset.

[0024] Preferably, the limiting member comprises:

[0025] A limiting rod, the shell being provided with a third through hole, the limiting rod being rotationally connected to the shell, one end of the limiting rod penetrating through the third through hole and being located outside the shell, the other end of the limiting rod having a fifth working position extending into the interdental space and a sixth working position moving out of the interdental space; and

[0026] A third reset spring connected between the one end of the limiting rod located outside the shell and the shell, the limiting rod being pushed by the ratchet when the pawl pushes the rotating disc to rotate around the rotation axis, so that the other end of the limiting rod rotates from the fifth working position to the sixth working position, the third reset spring being elastically deformed when the other end of the limiting rod rotates from the fifth working position to the sixth working position, so as to have an elastic potential energy for resetting the other end of the limiting rod from the sixth working position to the fifth working position, the side of the limiting rod away from the third reset spring abutting against the shell.

[0027] Preferably, the outer periphery of the clasp is provided with a plurality of third teeth, a gear being rotationally connected to the shell through a fourth rotation shaft, the gear being engaged with the clasp through the third teeth, a fourth reset spring being wound around the fourth rotation shaft, two ends of the fourth reset spring being fixedly connected with the fourth rotation shaft and the shell, respectively.

[0028] Preferably, the multifunctional pruning device for landscaping maintenance further comprises a sleeve ring, the sleeve ring being movable along the arrangement direction of the plurality of cutters, the branch being capable of penetrating through the sleeve ring, the first placement hole and the second placement hole along the extension direction of the rotation axis.

[0029] The beneficial effects of the present application are as follows: in the present application, when the projection of the second placing hole in the extension direction of the rotation axis overlaps with the first placing hole, the branch can pass through the second placing hole and the first placing hole and be placed between the cutter and the hole wall of the first placing hole; the driving mechanism drives the rotation of the rotating disc, so that the branch can be pressed between the cutter and the hole wall of the first placing hole; as the rotating disc rotates, the overlapping part of the projection of the second placing hole in the extension direction of the rotation axis with the first placing hole gradually decreases, so that the cutter can trim the branch; since the hole wall of the second placing hole is provided with a plurality of cutters, the gardener can selectively align the branch with one of the cutters, so as to perform corresponding trimming work on the branch. That is, the multifunctional trimming device for landscaping maintenance in the present application integrates multiple trimming functions, and the gardener only needs to carry one multifunctional trimming device for landscaping maintenance provided by the present application for different trimming processes, which occupies a small space, thereby avoiding the inconvenience of the gardener's work. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the multifunctional trimming device for landscaping maintenance in the embodiment of the present application;

[0031] Figure 2 is a sectional view of the multifunctional trimming device for landscaping maintenance in the embodiment of the present application;

[0032] Figure 3 is a structural schematic view of the rotating disc and the plurality of cutters in the embodiment of the present application;

[0033] Figure 4 is Figure 3 is a local enlarged view of position A in FIG. 1;

[0034] Figure 5 is a structural schematic view of the shell and the driving mechanism in the embodiment of the present application;

[0035] Figure 6 is a structural schematic view of the second driving wheel in the embodiment of the present application;

[0036] Figure 7 is a structural schematic view of the fourth rotating shaft, the gear and the fourth reset spring in the embodiment of the present application.

[0037] In the drawings:

[0038] 1, shell; 11, first placing hole; 111, first opening; 12, guide groove; 13, clamping groove; 14, fourth rotating shaft; 15, gear; 16, fourth reset spring;

[0039] 2, rotating disc; 21, second placing hole; 211, second opening; 22, second through hole; 23, snap ring; 231, third gear tooth; 24, ratchet; 25, interdental space;

[0040] 31, razor; 311, guide rod; 32, graver; 33, cutter;

[0041] 4, driving mechanism; 41, first handle; 42, second handle; 421, first rotating shaft; 43, first return spring; 44, first driving wheel; 441, first gear tooth; 45, second driving wheel; 451, second rotating shaft; 452, second gear tooth; 453, mounting groove; 46, pawl; 461, third rotating shaft; 47, second return spring; 48, limiting member; 481, limiting rod; 482, third return spring;

[0042] 5, collar;

[0043] 6, screw module. DETAILED DESCRIPTION

[0044] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of description, only the parts related to the application are shown in the drawings rather than all the parts.

[0045] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0047] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0048] Based on the foregoing, gardeners often use different pruning processes such as thinning, notching and ring cutting to maintain and manage garden plants. Based on the foregoing, the functions of the pruning tools in the prior art are relatively single. Specifically, for thinning, gardeners generally use thinning knives with blades to cut off dead branches, overgrown branches, undesirable branches and branches that do not conform to the tree shape from the base, which can reduce nutrient consumption and promote vegetative growth; for notching, gardeners generally use saw blades to cut off part of the tissue on the side of the branch, so that nutrients accumulate on the bud, promote the germination of hidden buds and grow into new branches, make up for missing branches, or use the cut to inhibit the growth of branches or large branch groups, so that the branches become moderate, which is beneficial to flowering and fruiting; for ring cutting, gardeners generally use ring cutting tools to cut off the phloem at the branch cross section to prevent the downward transport of organic nutrients, so that nutrients accumulate at the ring cutting site, which is beneficial to flowering and fruiting.

[0049] Based on the above, gardeners need to carry multiple pruning tools for different pruning processes, and multiple pruning tools occupy a large space, which greatly inconveniences the work of gardeners.

[0050] To solve the above problems, please refer to Figures 1 to 7The embodiment provides a multifunctional pruning device for garden maintenance, which comprises a shell 1, a rotating disc 2 and a driving mechanism 4. The shell 1 is provided with a first placing hole 11, and the rotating disc 2 is provided with a second placing hole 21. The rotating disc 2 and the shell 1 are stacked, and the rotating disc 2 is rotationally connected to the shell 1. The rotating axis of the rotating disc 2 extends along the arrangement direction of the rotating disc 2 and the shell 1. The first placing hole 11 and the second placing hole 21 are both provided along the arrangement direction of the rotating disc 2 and the shell 1, and extend along the direction perpendicular to the arrangement direction of the rotating disc 2 and the shell 1. The rotating axis of the rotating disc 2 passes through the center line of the first placing hole 11 and the second placing hole 21. The projection of the second placing hole 21 in the extension direction of the rotating axis of the rotating disc 2 has a first working position which overlaps the projection of the first placing hole 11 in the extension direction of the rotating axis, and a second working position which is dislocated from the projection of the first placing hole 11 in the extension direction of the rotating axis. A plurality of cutters are arranged on the hole wall of the second placing hole 21 along the direction perpendicular to the rotating axis. The plurality of cutters are configured to perform different pruning operations on branches. The branches can pass through the first placing hole 11 and the second placing hole 21 along the extension direction of the rotating axis. The driving mechanism 4 is configured to drive the rotating disc 2 to rotate around the rotating axis.

[0051] In the embodiment, when the projection of the second placing hole 21 in the extension direction of the rotating axis overlaps the first placing hole 11, the branches can pass through the second placing hole 21 and the first placing hole 11, and are placed between the cutters and the hole wall of the first placing hole 11. The driving mechanism 4 drives the rotating disc 2 to rotate, so that the branches can be pressed between the cutters and the hole wall of the first placing hole 11. With the rotation of the rotating disc 2, the overlapping part of the projection of the second placing hole 21 in the extension direction of the rotating axis and the first placing hole 11 gradually decreases, so that the cutters can prune the branches. Since the hole wall of the second placing hole 21 is provided with a plurality of cutters, the gardener can selectively align the branches with one of the cutters, so as to perform corresponding pruning operations on the branches. That is, the multifunctional pruning device for garden maintenance in the embodiment integrates multiple pruning functions. The gardener only needs to carry one multifunctional pruning device for garden maintenance provided by the embodiment for different pruning processes, which occupies a small space, thereby avoiding the inconvenience of the gardener's work.

[0052] Specifically, in the embodiment, the first placement hole 11 and the second placement hole 21 are both strip-shaped holes, and both extend along a direction perpendicular to the arrangement direction of the shell 1 and the rotating disc 2, the rotating axis of the rotating disc 2 is located on the center line of the first placement hole 11 and the second placement hole 21 which are strip-shaped holes, and initially, the projection of the second placement hole 21 on the extension direction of the rotating axis overlaps the projection of the first placement hole 11 on the extension direction of the rotating axis. The gardener passes the branch along the extension direction of the rotating axis through the first placement hole 11 and the second placement hole 21, specifically, the gardener can determine the position of the branch in the first placement hole 11 and the second placement hole 21 according to the required pruning process, so that the branch corresponds to the corresponding cutter, when the rotating disc 2 rotates around the rotating axis, the projection of the second placement hole 21 on the extension direction of the rotating axis is dislocated from the projection of the first placement hole 11 on the extension direction of the rotating axis, so that the branch can be pressed between the cutter and the hole wall of the first placement hole 11. With the continuous rotation of the rotating disc 2 around the rotating axis, the cutter can perform the corresponding pruning process on the branch.

[0053] Based on the foregoing, the girdling process is one of the commonly used pruning processes, in order to be able to girdle the branch, in the embodiment, one of the cutters is a razor 31, and the end wall of the first placement hole 11 and the second placement hole 21 along one end in the direction perpendicular to the rotating axis is an arc surface, the arc surface is coaxial with the rotating axis, and the razor 31 is arranged on the arc surface of the hole wall of the second placement hole 21. When it is necessary to girdle the branch, the gardener passes the branch through the first placement hole 11 and the second placement hole 21, and places the branch at the arc-shaped end of the first placement hole 11 and the second placement hole 21, so that the branch corresponds to the razor 31, and the center of the branch is located on the rotating axis. When the rotating disc 2 rotates around the rotating axis, the cutting edge of the razor 31 presses on the branch, with the continuous rotation of the rotating disc 2 around the rotating axis, the cutting edge of the razor 31 can be inserted into the branch, then the rotating disc 2 stops rotating, the gardener controls the branch to remain stationary, while controlling the whole garden maintenance multifunctional pruning device to rotate around the rotating axis. Since the razor 31 is arranged on the arc surface, and the center of the branch is located on the rotating axis, the rotation of the whole garden maintenance multifunctional pruning device around the rotating axis can make the razor 31 girdle around the outer periphery of the branch.

[0054] In addition to the razor 31, the hole wall of the second placement hole 21 is also provided with a marking knife 32 and a cutting knife 33, and the marking knife 32, the cutting knife 33 and the razor 31 are arranged on the hole wall of the second placement hole 21 in a spaced manner. The marking knife 32 is a frame-shaped structure with a triangular cross section, that is, the marking knife 32 is hollow inside. When it is necessary to make notches on the branch, the gardener passes the branch through the first placement hole 11 and the second placement hole 21, and makes the branch correspond to the marking knife 32. When the rotating disc 2 rotates around the rotating axis, the marking end of the marking knife 32 can penetrate into the branch. With the gradual penetration of the marking knife 32 into the branch, part of the branch can enter the inside space of the marking knife 32, so that this part is cut off, thereby realizing the notching on the surface of the branch. The cutting edge of the cutting knife 33 is arc-shaped and opens inward. When it is necessary to thin out and prune the branch, the gardener passes the branch through the first placement hole 11 and the second placement hole 21, and makes the branch correspond to the cutting knife 33. When the rotating disc 2 rotates around the rotating axis, the cutting edge of the cutting knife 33 abuts against the branch. With the continuous rotation of the rotating disc 2 around the rotating axis, the cutting knife 33 gradually cuts the branch. When the cutting edge of the cutting knife 33 passes the first placement hole 11, the cutting knife 33 can cut off the branch, thereby completing the thinning and pruning.

[0055] It can be understood that the marking end of the marking knife 32 in the embodiment is in the shape of a hawk's beak, so as to facilitate the penetration of the marking end of the marking knife 32 into the surface of the branch.

[0056] Further, the rotating disc 2 can rotate in a preset direction to make the projection of the second placement hole 21 in the extension direction of the rotating axis of the rotating disc 2 change from the first working position to the second working position. The preset direction is the direction in which the cutting tool rotates towards the branch placed in the first placement hole 11 and the second placement hole 21. The rotating disc 2 is hollow inside. The arc surface of the hole wall of the second placement hole 21 and the rotating disc 2 are respectively provided with a first through hole (not shown in the figure) and a second through hole 22. The housing 1 is provided with a guide groove 12. The guide groove 12 is an arc-shaped groove and is arranged around the outer periphery of the rotating axis. The upstream end of the guide groove 12 in the preset direction is away from the rotating axis. The downstream end of the guide groove 12 in the preset direction is close to the rotating axis. The razor 31 is provided with a guide rod 311. The guide rod 311 passes through the first through hole in the extension direction of the rotating axis and extends into the guide groove 12. The first through hole extends in a direction perpendicular to the rotating axis, and the center line of the first through hole intersects the rotating axis. The razor 31 passes through the second through hole 22 in the extension direction of the first through hole and extends into the first placement hole 11. When the rotating disc 2 rotates in the preset direction, the razor 31 can move towards the rotating axis. The gardener can control the rotation amplitude of the rotating disc 2 to control the depth of the blade of the razor 31 inserted into the branch, thereby controlling the depth of the girdling.

[0057] Further, the first placing hole 11 and the second placing hole 21 in the embodiment are provided with a first opening 111 and a second opening 211 respectively at one end away from the arc surface, the first opening 111 is arranged on the edge of the shell 1, and the second opening 211 is arranged on the edge of the rotating disc 2, so that the branch can be moved into the first placing hole 11 and the second placing hole 21 through the first opening 111 and the second opening 211, which is more convenient than inserting the branch into the first placing hole 11 and the second placing hole 21 along the extension direction of the rotating axis.

[0058] Preferably, the rotating disc 2 in the embodiment is provided with a snap ring 23, and the shell 1 is provided with a snap groove 13, the snap ring 23 and the snap groove 13 are both arc-shaped and coaxially arranged, the snap ring 23 is accommodated in the snap groove 13, both ends of the snap groove 13 are communicated with the first placing hole 11, the center of the snap ring 23 and the snap groove 13 is the rotating center of the rotating disc 2, and the snap ring 23 is used to ensure that the rotating disc 2 can rotate around the rotating axis. The length of the snap ring 23 is less than or equal to the length of the snap groove 13, and is greater than the length of the part where the circumference where the extension line of the snap groove 13 coincides with the first placing hole 11, so as to ensure that when the projection of the second placing hole 21 in the extension direction of the rotating axis of the rotating disc 2 overlaps with the projection of the first placing hole 11 in the extension direction of the rotating axis, the snap ring 23 is completely located in the snap groove 13, and at the same time, the snap ring 23 as a whole will not be moved out of the snap groove 13 when the rotating disc 2 rotates.

[0059] Based on the above, the driving mechanism 4 in the embodiment includes a first handle 41 and a second handle 42, the first handle 41 is arranged on the shell 1, one end of the second handle 42 is rotationally connected to the shell 1 through a first rotating shaft 421 and is in transmission connection with the rotating disc 2, the second handle 42 can drive the rotating disc 2 to rotate around the rotating axis when it rotates towards the first handle 41, a first return spring 43 is connected between the second handle 42 and the first handle 41, and the first return spring 43 is configured to reset the second handle 42, that is, the gardener can drive the second handle 42 to rotate towards the first handle 41 by applying force to the second handle 42, so as to trim the branch, and when the trimming is completed, the gardener releases the force applied to the second handle 42, and the second handle 42 is automatically reset under the action of the first return spring 43, so that the multifunctional pruning device for landscaping maintenance in the embodiment is easy to operate.

[0060] In addition to the first handle 41 and the second handle 42, the driving mechanism 4 further comprises a first driving wheel 44, a second driving wheel 45, a pawl 46, a second reset spring 47 and a limiting member 48. The first driving wheel 44 is fixedly connected to the second handle 42 and is sleeved on the outer periphery of the first rotating shaft 421. The outer periphery of the first driving wheel 44 is provided with a plurality of first wheel teeth 441 around the first rotating shaft 421. The second driving wheel 45 is rotatably connected to the shell 1 through a second rotating shaft 451, which is parallel to the first rotating shaft 421. The outer periphery of the second driving wheel 45 is provided with a plurality of second wheel teeth 452 around the second rotating shaft 451. The first driving wheel 44 and the second driving wheel 45 are engaged through the first wheel teeth 441 and the second wheel teeth 452. The second driving wheel 45 is provided with a mounting groove 453 on the side away from the first driving wheel 44. The pawl 46 is rotatably connected to the second driving wheel 45 through a third rotating shaft 461, which is parallel to the first rotating shaft 421 and located in the mounting groove 453. The pawl 46 has a third working position in which one end away from the third rotating shaft 461 protrudes out of the mounting groove 453 and abuts against the groove wall of the mounting groove 453, and a fourth working position in which the pawl 46 is accommodated in the mounting groove 453. The outer periphery of the turntable 2 is coaxially provided with a plurality of ratchet teeth 24 with the snap ring 23. Adjacent two ratchet teeth 24 form a tooth gap 25 therebetween. The end of the pawl 46 away from the third rotating shaft 461 protrudes into the tooth gap 25 when the pawl 46 is in the third working position. The pawl 46 can be in the third working position and can push against the ratchet teeth 24 to rotate the turntable 2 around the rotating axis when the second handle 42 rotates towards the first handle 41. The pawl 46 can be pushed by the ratchet teeth 24 to rotate from the third working position to the fourth working position when the second handle 42 is reset. The second reset spring 47 is configured to reset the pawl 46 to the third working position when the end of the pawl 46 away from the third rotating shaft 461 is separated from the ratchet teeth 24. The limiting member 48 is configured to limit the rotation of the turntable 2 when the second handle 42 is reset.

[0061] Based on the above, initially, the pawl 46 in the third working position extends into the tooth gap 25 on the downstream side in the preset direction away from one end of the third rotating shaft 461, when the second handle 42 is turned towards the first handle 41, the pawl 46 pushes against the ratchet 24 to make the rotating disc 2 rotate in the preset direction until the one end of the pawl 46 away from the third rotating shaft 461 moves out of the tooth gap 25, at this time, the rotating disc 2 rotates by a preset angle, then the second handle 42 is reset under the action of the first reset spring 43, at the same time, the second driving wheel 45 rotates together with the first driving wheel 44, at this time, the one end of the pawl 46 away from the third rotating shaft 461 abuts against the ratchet 24, since the ratchet 24 is limited by the limiting piece 48 and cannot rotate in the direction opposite to the preset direction, therefore the pawl 46 is pushed by the ratchet 24 to rotate around the third rotating shaft 461 until the pawl 46 is accommodated in the mounting groove 453, that is, the pawl 46 rotates from the third working position to the fourth working position, after the pawl 46 is accommodated in the mounting groove 453, the pawl 46 is disengaged from the ratchet 24, at this time, the pawl 46 is reset from the fourth working position to the third working position under the action of the second reset spring 47, at the same time, the one end of the pawl 46 away from the third rotating shaft 461 extends into the tooth gap 25 on the upstream side in the preset direction, then the gardener continues to pinch the second handle 42 and the first handle 41 to make the rotating disc 2 rotate again by a preset angle in the preset direction. Based on the above, in the embodiment, the rotating disc 2 is gradually rotated by the gardener repeatedly pinching the second handle 42 and the first handle 41 until the pruning work can be completed.

[0062] Further, the limiting piece 48 mentioned above comprises a limiting rod 481 and a third reset spring 482, the shell 1 is provided with a third through hole (not shown in the figure), the limiting rod 481 is rotationally connected to the shell 1, and one end thereof penetrates through the third through hole and is located outside the shell 1, the other end of the limiting rod 481 has a fifth working position extending into the tooth gap 25 and a sixth working position moving out of the tooth gap 25, the third reset spring 482 is connected between the one end of the limiting rod 481 located outside the shell 1 and the shell 1, the limiting rod 481 can be pushed by the ratchet 24 when the pawl 46 pushes the rotating disc 2 to rotate around the rotating axis, so that the other end of the limiting rod 481 rotates from the fifth working position to the sixth working position, the third reset spring 482 can be elastically deformed when the other end of the limiting rod 481 rotates from the fifth working position to the sixth working position, so as to have an elastic potential energy for resetting the other end of the limiting rod 481 from the sixth working position to the fifth working position, the side of the limiting rod 481 away from the third reset spring 482 abuts against the shell 1.

[0063] Based on the above, when the rotating disc 2 rotates in the preset direction, the limiting rod 481 extends into the tooth gap 25 on the downstream side of the rotating disc 2 in the preset direction and can be pushed by the ratchet teeth 24 to rotate, the end of the limiting rod 481 on the outside of the shell 1 rotates towards the third return spring 482 until the other end of the limiting rod 481 rotates from the fifth working position to the sixth working position, with the rotation of the rotating disc 2, the other end of the limiting rod 481 is aligned with the tooth gap 25 on the upstream side of the rotating disc 2 in the preset direction, the third return spring 482 recovers deformation, the other end of the limiting rod 481 resets from the sixth working position to the fifth working position and extends into the tooth gap 25 on the upstream side of the rotating disc 2 in the preset direction, since the side of the limiting rod 481 away from the third return spring 482 abuts against the shell 1, the other end of the limiting rod 481 in the fifth working position cannot rotate away from the third return spring 482, so as to limit the rotating disc 2 from rotating in the direction opposite to the preset direction.

[0064] Further, the outer periphery of the clamping ring 23 is provided with a plurality of third teeth 231, the shell 1 is rotatably connected with a gear 15 through a fourth rotating shaft 14, the gear 15 is engaged with the clamping ring 23 through the third teeth 231, the outer periphery of the fourth rotating shaft 14 is provided with a fourth return spring 16, the two ends of the fourth return spring 16 are fixedly connected with the fourth rotating shaft 14 and the shell 1 respectively, when the rotating disc 2 rotates in the preset direction, the clamping ring 23 also rotates in the preset direction, the gear 15 rotates around the fourth rotating shaft 14 under the drive of the clamping ring 23, so that the fourth return spring 16 elastically deforms to store elastic potential energy, when the pruning work is completed, the gardener pinches the second handle 42 and the first handle 41 to make the pawl 46 be in the position dislocated with the ratchet teeth 24, and presses the end of the limiting rod 481 on the outside of the shell 1 to make the other end of the limiting rod 481 move out of the tooth gap 25, at this time, the fourth return spring 16 recovers deformation, so as to reset the rotating disc 2, in order to facilitate the next pruning work.

[0065] It can be understood that the fourth return spring 16 in the embodiment can be selected as any one of elastic elements such as a coil spring, a torsion spring and a clockwork spring, which is not limited in the embodiment.

[0066] Preferably, the multifunctional pruning device for landscaping maintenance further comprises a sleeve ring 5, the sleeve ring 5 is movable along the arrangement direction of the plurality of cutters, specifically, the sleeve ring 5 is movably connected to the shell 1 through a lead screw module 6, the branch can pass through the sleeve ring 5, the first placement hole 11 and the second placement hole 21 along the extension direction of the rotating axis, the sleeve ring 5 can position the branch, and since the sleeve ring 5 is movable along the arrangement direction of the plurality of cutters, the sleeve ring 5 can position the branch to correspond to the cutter required for the pruning work.

[0067] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A multi-functional pruning device for landscaping maintenance, characterized in that, include: The housing (1) has a first placement hole (11); A turntable (2) has a second placement hole (21). The turntable (2) and the housing (1) are stacked, and the turntable (2) is rotatably connected to the housing (1). The rotation axis of the turntable (2) extends along the arrangement direction of the turntable (2) and the housing (1). The first placement hole (11) and the second placement hole (21) are both opened along the arrangement direction of the turntable (2) and the housing (1), and both the first placement hole (11) and the second placement hole (21) extend in a direction perpendicular to the arrangement direction of the turntable (2) and the housing (1). The rotation axis of the turntable (2) passes through the first placement hole (11) and the second placement hole (21). The center line of the placement hole (21) has a first working position where the projection of the second placement hole (21) on the extension direction of the rotation axis of the turntable (2) overlaps with the projection of the first placement hole (11) on the extension direction of the rotation axis, and a second working position where the projection of the first placement hole (11) on the extension direction of the rotation axis is misaligned. Multiple blades are spaced apart on the hole wall of the second placement hole (21) in a direction perpendicular to the rotation axis. The multiple blades are configured to perform different pruning operations on the branches. The branches can pass through the first placement hole (11) and the second placement hole (21) along the extension direction of the rotation axis. and The drive mechanism (4) is configured to drive the turntable (2) to rotate about the rotation axis; The end walls of the first placement hole (11) and the second placement hole (21) along the direction perpendicular to the rotation axis are both arc surfaces, and the arc surfaces are coaxial with the rotation axis. One of the tools is a razor (31), and the razor (31) is disposed on the arc surface of the hole wall of the second placement hole (21). The turntable (2) can rotate in a preset direction so that the projection of the second placement hole (21) on the extension direction of the rotation axis of the turntable (2) is changed from the first working position to the second working position. The turntable (2) is hollow inside. The arc surface of the hole wall of the second placement hole (21) and the turntable (2) are respectively provided with a first through hole and a second through hole (22). The housing (1) is provided with a guide groove (12). The guide groove (12) is an arc-shaped groove and is arranged around the outer periphery of the rotation axis. The guide groove (12) is along the preset direction. The upstream end of the razor (31) is far from the rotation axis, and the downstream end of the guide groove (12) along the preset direction is close to the rotation axis. The razor (31) is provided with a guide rod (311). The guide rod (311) passes through the first through hole and extends into the guide groove (12) along the extension direction of the rotation axis. The first through hole extends in a direction perpendicular to the rotation axis, and the center line of the first through hole intersects the rotation axis. The razor (31) passes through the second through hole (22) along the extension direction of the first through hole and extends into the first placement hole (11).

2. The multi-functional pruning device for landscaping maintenance according to claim 1, characterized in that, The first placement hole (11) and the second placement hole (21) are respectively provided with a first opening (111) and a second opening (211) at the ends away from the arc surface. The first opening (111) is opened at the edge of the housing (1), and the second opening (211) is opened at the edge of the turntable (2).

3. The multi-functional pruning device for landscaping maintenance according to claim 1, characterized in that, A retaining ring (23) is provided on the turntable (2), and a retaining groove (13) is provided on the housing (1). The retaining ring (23) and the retaining groove (13) are both arc-shaped and coaxially arranged. The retaining ring (23) is housed in the retaining groove (13). Both ends of the retaining groove (13) are connected to the first placement hole (11). The length of the retaining ring (23) is less than or equal to the length of the retaining groove (13), and greater than the length of the part of the circumference where the extension line of the retaining groove (13) coincides with the first placement hole (11).

4. The multi-functional pruning device for landscaping maintenance according to claim 3, characterized in that, The drive mechanism (4) includes: The first handle (41) is disposed on the housing (1); and The second handle (42) is rotatably connected to the housing (1) via a first rotating shaft (421) and is connected to the turntable (2) in a transmission manner. The second handle (42) can drive the turntable (2) to rotate around the rotation axis when it rotates toward the first handle (41). A first return spring (43) is connected between the second handle (42) and the first handle (41). The first return spring (43) is configured to reset the second handle (42).

5. The multi-functional pruning device for landscaping maintenance according to claim 4, characterized in that, The drive mechanism (4) also includes: The first drive wheel (44) is fixedly connected to the second handle (42) and sleeved on the outer periphery of the first rotating shaft (421). The outer periphery of the first drive wheel (44) is provided with a plurality of first gear teeth (441) around the first rotating shaft (421). The second drive wheel (45) is rotatably connected to the housing (1) via the second rotating shaft (451). The second rotating shaft (451) is parallel to the first rotating shaft (421). The outer periphery of the second drive wheel (45) is provided with a plurality of second gear teeth (452) around the second rotating shaft (451). The first drive wheel (44) and the second drive wheel (45) mesh with the first gear teeth (441) and the second gear teeth (452). The side of the second drive wheel (45) away from the first drive wheel (44) is provided with a mounting groove (453). A pawl (46) is rotatably connected to the second drive wheel (45) via a third rotating shaft (461). The third rotating shaft (461) is parallel to the first rotating shaft (421) and located within the mounting groove (453). The pawl (46) has a third working position where one side abuts against the groove wall of the mounting groove (453) and the other end extends out of the mounting groove (453) away from the third rotating shaft (461), and a fourth working position where it is accommodated within the mounting groove (453). Multiple ratchet teeth (24) are coaxially arranged on the outer periphery of the turntable (2) and the retaining ring (23). Adjacent... A tooth gap (25) is formed between the two ratchet teeth (24). The end of the pawl (46) in the third working position that is away from the third rotating shaft (461) extends into the tooth gap (25). The pawl (46) can be in the third working position when the second handle (42) rotates toward the first handle (41) and can push against the ratchet teeth (24) to make the turntable (2) rotate around the rotation axis. The pawl (46) can be pushed by the ratchet teeth (24) to rotate from the third working position to the fourth working position when the second handle (42) is reset. The second return spring (47) is configured to return the pawl (46) to the third working position when its end away from the ratchet tooth (24) disengages from the third pivot (461); and The limiting element (48) is configured to restrict the rotation of the turntable (2) when the second handle (42) is reset.

6. The multi-functional pruning device for landscaping maintenance according to claim 5, characterized in that, The limiting member (48) includes: A limiting rod (481) is provided on the housing (1) with a third through hole. The limiting rod (481) is rotatably connected to the housing (1), and one end of the limiting rod (481) passes through the third through hole and is located outside the housing (1). The other end of the limiting rod (481) has a fifth working position extending into the tooth gap (25) and a sixth working position moving out of the tooth gap (25); and The third return spring (482) is connected between the end of the limiting rod (481) located outside the housing (1) and the housing (1). The limiting rod (481) can be pushed by the ratchet (24) when the pawl (46) pushes the turntable (2) to rotate around the rotation axis, so that the other end of the limiting rod (481) rotates from the fifth working position to the sixth working position. The third return spring (482) can undergo elastic deformation when the other end of the limiting rod (481) rotates from the fifth working position to the sixth working position, so as to have elastic potential energy to reset the other end of the limiting rod (481) from the sixth working position to the fifth working position. The side of the limiting rod (481) away from the third return spring (482) abuts against the housing (1).

7. The multi-functional pruning device for landscaping maintenance according to claim 6, characterized in that, The outer periphery of the retaining ring (23) is provided with a plurality of third gear teeth (231). A gear (15) is rotatably connected to the housing (1) via a fourth rotating shaft (14). The gear (15) meshes with the retaining ring (23) via the third gear teeth (231). A fourth return spring (16) is wound around the outer periphery of the fourth rotating shaft (14). The two ends of the fourth return spring (16) are fixedly connected to the fourth rotating shaft (14) and the housing (1) respectively.

8. The multi-functional pruning device for landscaping maintenance according to claim 1, characterized in that, The multi-functional pruning device for garden greening maintenance also includes a collar (5), which can move along the arrangement direction of the plurality of blades, and the branch can pass through the collar (5), the first placement hole (11) and the second placement hole (21) along the extension direction of the rotation axis.

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