CN219834887U - Cutting module and mower - Google Patents

Abstract

The utility model provides a cutting module and a mower, wherein the cutting module comprises a cutting mechanism and a lifting mechanism, the cutting mechanism comprises a cutter head, and the cutter head is used for mowing; the lifting mechanism comprises an adjusting knob and a gear transmission assembly, the adjusting knob is connected with the gear transmission assembly, the gear transmission assembly is connected with the cutting mechanism, the adjusting knob adjusts the height of the cutter disc from the adjusting knob in the vertical direction through the gear transmission assembly, the central axis of the adjusting knob and the central axis of the cutter disc are spaced at preset distances in the first direction, and the first direction is perpendicular to the vertical direction. Therefore, when the cutting module is applied to the mower, the rotation axis of the adjusting knob coincides with the left and right centers of the mower, the cutting mechanism can be biased to be closer to the left side or the right side of the shell, and when the mower mows along the boundary of the working area, the cutting structure can be closer to the boundary, so that the coverage rate of the mowing area is increased.

Description

Cutting module and mower

Technical Field

The utility model relates to the technical field of mechanical equipment, in particular to a cutting module and a mower.

Background

A mower is a machine for repairing a green belt or a lawn. The mower can comprise a lifting mechanism and a cutting mechanism, wherein the cutting mechanism is arranged on the lifting mechanism, the lifting mechanism drives the cutting mechanism to ascend or descend, and the lifting mechanism has various forms of automatic, knob type or push type.

In the prior art, the lifting mechanism can comprise a manual adjusting component and a transmission component, wherein the manual adjusting component is generally arranged on an upper shell of the mower; the cutting mechanism can comprise a cutting motor and a cutter disc, the manual adjusting component is in transmission connection with the cutting motor through the transmission component, and the cutting motor can be lifted or lowered by operating the manual adjusting component, so that the cutter disc is driven to lift or lower.

However, in the prior art, the manual operation member is positioned near the left and right central axes of the cutting motor, which is inconvenient for the user to operate the manual adjustment member, and the comfort is insufficient.

Disclosure of Invention

In order to solve the above problems, embodiments of the present utility model provide a cutting module and a mower to at least partially solve the above problems.

One or more embodiments of the present utility model provide a cutting module including a cutting mechanism and a lifting mechanism, the cutting mechanism including a cutterhead for mowing; the lifting mechanism comprises an adjusting knob and a gear transmission assembly, the adjusting knob is connected with the gear transmission assembly, the gear transmission assembly is connected with the cutting mechanism, the adjusting knob adjusts the height of the cutter disc from the adjusting knob in the vertical direction through the gear transmission assembly, the central axis of the adjusting knob and the central axis of the cutter disc are spaced at preset distances in the first direction, and the first direction is perpendicular to the vertical direction.

Optionally, the gear transmission assembly comprises a driving gear and a driven gear, the adjusting knob and the driving gear are coaxially and fixedly connected, and the driving gear is externally meshed with the driven gear; the driven gear is connected with the cutting mechanism so as to drive the cutterhead to ascend or descend relative to the adjusting knob.

Optionally, in the lifting stroke of the cutterhead, the rotation angle of the driving gear is smaller than or equal to 360 degrees.

Optionally, the driving gear comprises a gear body and a cylinder coaxially and fixedly connected with the gear body, and a first limiting protrusion is arranged on the outer circumferential surface of the cylinder; the adjusting knob comprises a twisting part and a connecting cylinder coaxially and fixedly connected with the twisting part, a first limit groove is formed in the inner surface of the connecting cylinder, and the first limit groove extends along the axis of the connecting cylinder and penetrates through the end face of the connecting cylinder; the cylinder is inserted into the inner hole of the connecting cylinder along the axial direction of the driving gear, and the first limiting protrusion is inserted into the first limiting groove along the axial direction of the driving gear.

Optionally, a limiting hole is formed in the wall of the connecting cylinder, a groove is formed in the end face of the cylinder, a second limiting protrusion aligned with the groove is arranged on the outer circumferential surface of the cylinder, and when the cylinder is inserted into the inner hole of the connecting cylinder, the groove allows the cylinder to elastically deform so that the second limiting protrusion can be inserted into the limiting hole.

Optionally, the cutting module further comprises a first connecting piece, a mounting column is arranged on the shell of the mower, a first threaded hole is arranged on the end face of the mounting column, a mounting hole is arranged on one side, facing the mounting column, of the driving gear, and the axis of the mounting hole is coincident with the axis of the driving gear; the mounting hole is sleeved on the mounting column in a clearance fit manner, and the first connecting piece penetrates through the driving gear and is in threaded connection with the first threaded hole so as to limit the driving gear to be separated from the mounting column.

Optionally, the lifting mechanism further comprises a screw, and one end of the screw is fixedly connected with the driven gear coaxially; the cutting mechanism comprises a cutting motor, the cutter disc is connected with an output shaft of the cutting motor, a meshing part is arranged on the cutting motor, and the meshing part is meshed with the screw rod.

Optionally, the cutting module still includes support and base, the cutting motor is followed install with sliding vertical direction on the base, support detachably installs the base top, the support is including covering to establish the sleeve of driven gear top, the sleeve has the second to dodge the mouth, a part of driven gear toothed rim aligns the second dodges the mouth, so as to pass through the second dodge the mouth with the driving gear meshing.

Optionally, one end of the screw is provided with a first positioning portion, the first positioning portion is rotatably and axially limitedly mounted on the support, the other end of the screw is provided with a second positioning portion, and the second positioning portion is rotatably and axially limitedly mounted on the base.

Optionally, the base comprises a lower limit structure and an inner accommodating hole, two opposite sliding grooves are formed in the inner surface of the inner accommodating hole, the sliding grooves extend in the vertical direction, two opposite sliding blocks are arranged on the cutting motor, and the sliding blocks are matched with the sliding grooves so that the cutting motor can slide along the sliding grooves; the support and the lower limiting structure are respectively positioned at the upper end and the lower end of the chute so as to limit the sliding stroke of the cutting motor together.

Optionally, the driving gear is rotatably installed on the bracket, and the driving gear is connected with the adjusting knob through the second avoidance port.

In a second aspect, the present utility model further provides a mower, where the mower includes a secondary accommodating cavity, a housing, and the cutting module, the secondary accommodating cavity is surrounded by the housing, and the housing includes a first avoidance port that is communicated with the secondary accommodating cavity; the cutting module is partially accommodated in the auxiliary accommodating cavity, the adjusting knob extends out of the first avoiding opening, and the cutter disc is positioned outside the auxiliary accommodating cavity and below the shell.

Based on the cutting module provided by the utility model, the size of the gear transmission assembly can be designed according to the requirement, so that a proper preset distance is reserved between the central axis of the adjusting knob and the central axis of the cutter head; when the cutting module is applied to the mower, the rotation axis of the adjusting knob coincides with the left and right centers of the mower, the cutting mechanism can be biased to be closer to the left side or the right side of the shell, and when the mower mows along the boundary of the working area, the cutting structure can be closer to the boundary, so that the coverage rate of the mowing area is increased.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein, the liquid crystal display device comprises a liquid crystal display device,

fig. 1 is a schematic perspective view of a cutting module according to an exemplary embodiment of the present utility model;

FIG. 2 is an exploded view of a portion of a cutting module according to an exemplary embodiment of the present utility model;

FIG. 3 is an exploded view of a portion of a cutting module according to an exemplary embodiment of the present utility model;

FIG. 4 is an exploded view of a portion of a cutting module according to an exemplary embodiment of the present utility model;

fig. 5 is a schematic perspective view of a cutting mechanism in a cutting module according to an exemplary embodiment of the present utility model;

FIG. 6 is an exploded view of a portion of a cutting module according to an exemplary embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a portion of the structure of a cutting module according to an exemplary embodiment of the present utility model;

FIG. 8 is a partial perspective view of a mower provided in accordance with an exemplary embodiment of the present utility model;

fig. 9 is a partially exploded view of a mower provided in accordance with an exemplary embodiment of the present utility model.

Reference numerals illustrate:

10-a shell, 11-a mounting column and 12-a first avoidance port;

20-cutting mechanism, 21-cutting motor, 211-meshing part, 212-slide block and 22-cutterhead;

30-lifting mechanism, 31-adjusting knob, 311-twisting part, 312-connecting cylinder, 3120-limit hole, 3121-first limit groove;

32-driving gears, 321-gear bodies, 322-cylinders, 3221-first limit protrusions, 3222-second limit protrusions, 3223-grooves, 33-driven gears, 34-screws, 341-first positioning portions and 342-second positioning portions;

41-base, 401-base frame, 4011-second threaded hole, 402-guide, 4021-base plate, 4022-elastic claw, 4023-side plate, 4024-ear plate, 411-inner hole, 4111-dovetail groove, 412-chute, 413-second limit boss;

42-a bracket, 421-a sleeve, 4210-a second avoidance port and 422-a first limit boss;

51-first connector, 52-second connector, 53-third connector.

Detailed Description

For a clearer understanding of technical features, objects, and effects of embodiments of the present utility model, a specific implementation of the embodiments of the present utility model will be described with reference to the accompanying drawings.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. In addition, for simplicity and ease of understanding, components having the same structure or function in some of the figures are shown only schematically or only one or more of them are labeled.

The utility model provides a cutting module, referring to fig. 1, the cutting module comprises a cutting mechanism 20 and a lifting mechanism 30, the cutting mechanism 20 comprises a cutter head 22, and the cutter head 22 is used for mowing; the lifting mechanism 30 comprises an adjusting knob 31 and a gear transmission assembly, the adjusting knob 31 is connected with the gear transmission assembly, the gear transmission assembly is connected with the cutting mechanism 20, the adjusting knob 31 is used for adjusting the height of the cutter disc 22 from the adjusting knob 31 in the vertical direction through the gear transmission assembly, the central axis of the adjusting knob 31 and the central axis of the cutter disc 22 are spaced at preset distances in the first direction, and the first direction is perpendicular to the vertical direction. In other words, the cutterhead 22 is lifted or lowered in the vertical direction by the lifting mechanism 30.

With the above technical solution, the size of the gear transmission assembly can be designed according to the requirement, so that a proper preset distance is provided between the central axis of the adjusting knob 31 and the central axis of the cutterhead 22; when the cutting module is applied to a mower, the rotation axis of the adjusting knob coincides with the left and right centers of the mower, so that the cutting mechanism can be biased to be closer to the left side or the right side of the housing 10, and when the mower mows along the boundary of a working area, the cutting structure can be closer to the boundary, and the coverage rate of the mowing area is increased.

Here, the vertical direction is a direction in which the mower coincides with the gravity direction when mowing a grass, and the mower has a forward and backward direction of travel when mowing a grass, and the left and right direction is perpendicular to the forward and backward direction and to the up and down direction. When the cutting module is installed on the mower, the first direction is consistent with the left-right direction.

In one possible embodiment, referring to fig. 1, the gear transmission assembly includes a driving gear 32 and a driven gear 33, the adjustment knob 31 is fixedly connected coaxially with the driving gear 32, and the driving gear 32 is meshed with the driven gear 33; the driven gear 33 is connected to the cutting mechanism 20 to drive the cutterhead 22 up or down relative to the adjustment knob 31.

Under the condition of adopting the technical scheme, the external engagement mode is adopted, on one hand, the distance between the central axis of the adjusting knob 31 and the central axis of the cutterhead 22 is necessarily larger than or equal to the sum of the radius of the driven gear 33 and the radius of the driving gear 31, and the distance between the central axis of the adjusting knob 31 and the central axis of the cutterhead 22 can be adjusted by fully utilizing the radius of the driven gear 33 and the radius of the driving gear 31, so that the cutterhead 22 is closer to the left side or the right side of the shell 10; on the other hand, if the radius of the driving gear 31 is adjusted, the rotation amplitudes of the driving gear 31 and the adjusting knob 31 are adjusted accordingly, but the size of the adjusting knob 31 may be unchanged; in addition, the adjusting knob 31 and the driving gear 32 are independently arranged and coaxially connected, and the adjusting knob 31 and the driving gear 32 can be independently replaced, so that the maintenance cost is reduced.

In one possible embodiment, the rotation angle of the driving gear 32 is less than or equal to 360 ° during the lifting stroke of the cutting motor 21. The adjustment knob 31 only needs to be turned one turn or less during the entire lifting stroke of the cutting motor 21. Thus, the user can save time and labor when operating the adjusting knob 31, and can conveniently set the gear scale marks surrounding the adjusting knob 31 on the shell 10 to indicate the current gear of the adjusting knob 31, thereby being convenient for the user to know the current position of the cutterhead 22 in time.

In addition, the diameter of the driving gear 32 may be larger than the diameter of the driven gear 33, that is, the driving gear 32 is a large gear and the driven gear 33 is a small gear. The large gear is laborious to rotate the small gear, so that the risk of the cutter head 22 rising or falling due to the erroneous rotation of the adjusting knob 31 by an external force can be reduced.

Regarding the fixed connection between the driving gear 32 and the adjusting knob 31, referring to fig. 2 and 3, in one possible embodiment, the driving gear 32 includes a gear body 321 and a cylinder 322 fixedly connected coaxially with the gear body 321, and a first limit protrusion 3221 is provided on an outer circumferential surface of the cylinder 322; the adjusting knob 31 comprises a twisting part 311 and a connecting cylinder 312 which is coaxially and fixedly connected with the twisting part 311, a first limit groove 3121 is arranged on the inner surface of the connecting cylinder 312, and the first limit groove 3121 extends along the axis of the connecting cylinder 312 and penetrates through the end surface of the connecting cylinder 312; the cylinder 322 is inserted into the inner hole of the connection cylinder 312 in the axial direction of the driving gear 32, and the first limit protrusion 3221 is inserted into the first limit groove 3121 in the axial direction of the driving gear 32. In this way, the first limiting protrusion 3221 and the first limiting groove 3121 cooperate, so that the connecting cylinder 312 of the adjusting knob 31 can be circumferentially limited and sleeved on the cylinder 322 of the driving gear 32, thereby driving the driving gear 32 to rotate synchronously.

In order to prevent the adjustment knob 31 from being separated from the driving gear 32 along the axial direction of the driving gear 32, a limiting hole 3120 may be provided on the wall of the connection cylinder 312, a groove 3223 may be provided on the end surface of the cylinder 322, and a second limiting protrusion 3222 aligned with the groove 3223 may be provided on the outer circumferential surface of the cylinder 322, wherein the groove 3223 allows the cylinder 322 to be elastically deformed when the cylinder 322 is inserted into the inner hole of the connection cylinder 312 such that the second limiting protrusion 3222 can be inserted into the limiting hole 3120, referring to fig. 3. In other words, the cylinder 322 has a hollow portion, and the hollow portion corresponds to the second limiting protrusion 3222, so that the cylinder 322 can be elastically deformed, so that the cylinder 322 and the connecting cylinder 312 are sleeved together, and meanwhile, the first limiting protrusion 3221 is inserted into the limiting hole 3120 to prevent the adjusting knob 31 from being separated from the driving gear 32 along the axial direction of the driving gear 32.

In one example, first and second stop protrusions 3221, 3222 on a cylinder 322 may be located on opposite sides of the cylinder 322.

In one example, the grooves 3223 and the mounting holes may be distributed in the up-down direction and on opposite sides of the gear body 321, and the first connecting member 51 may pass through the bottom wall of the grooves 3223 into the mounting holes and be threadedly coupled with the threaded holes on the mounting posts 11.

With respect to the manner in which the driving gear 32 is rotatably mounted on the housing 10, referring to fig. 2, 3 and 8, in one example, the cutting module further includes a first connecting member 51, a mounting post 11 is provided on the housing 10 of the mower, a first threaded hole is provided on an end surface of the mounting post 11, a mounting hole is provided on a side of the driving gear 32 facing the mounting post 11, and an axis of the mounting hole coincides with an axis of the driving gear 32; the mounting hole is fit over the mounting post 11 with a clearance fit, and the first connector 51 passes through the drive gear 32 and is threaded with the first threaded hole to limit the drive gear 32 from being disengaged from the mounting post 11. In this way, under the action of the first connecting piece 51, the driving gear 32 is axially limited on the housing 10, and meanwhile, the driving gear 32 can also rotate around the mounting post 11, and the driving gear 32 can be driven to rotate by rotating the adjusting knob 31.

In one example, four ribs which are uniformly distributed in a ring shape may be provided on the outer surface of the mounting post 11, the extending direction of the ribs is consistent with the axial direction of the mounting post 11, the mounting hole is circular and the inner surface is flat, when the driving gear 32 is sleeved on the mounting post 11, one ends of the four ribs, which are away from the outer surface of the mounting post 11, are all in contact with the inner surface of the mounting hole, in other words, the mounting hole is in contact with only the upper four ribs of the mounting post 11 and can rotate around the mounting post 11. In this way, the contact area between the mounting hole and the mounting post 11 is small, so that the friction force can be reduced, and the driving gear 32 can rotate more smoothly.

There are various ways of implementing the driving connection between the driven gear 33 and the cutting motor 21, referring to fig. 1 and 4, in a possible implementation manner, the lifting mechanism 30 further includes a screw 34, and one end of the screw 34 is fixedly connected coaxially with the driven gear 33; the cutting mechanism 20 comprises a cutting motor 21, a cutter head 22 is connected with an output shaft of the cutting motor 21, an engagement portion 211 is arranged on the cutting motor 21, and the engagement portion 211 is engaged with a screw 34. That is, the cutting motor 21 is engaged with the thread pair of the screw 34 by the engagement portion 211. In this way, the screw 34 can rotate around its own axis in synchronization with the driven gear 33, and the cutting motor 21 engaged with the screw 34 is driven to lift in the vertical direction, so that the cutterhead 22 can be driven to lift in the vertical direction. Thus, rotation of the screw 34 may translate into a raising or lowering of the cutting mechanism 20.

In a specific implementation, referring to fig. 1 and 4, the mower further includes a bracket 42 and a base 41, the cutting motor 21 is slidably mounted on the base 41 in a vertical direction, the bracket 42 is detachably mounted above the base 41, the bracket 42 includes a sleeve 421 covered over the driven gear 33, the sleeve 421 has a second escape opening 4210, and a portion of a toothed edge of the driven gear 33 is aligned with the second escape opening 4210 to be engaged with the driving gear 32 through the second escape opening 4210. Thus, the support 42 covers a part of the area of the driven gear 33, the support 42 can play a role in limiting the driven gear 33 in the axial direction, so that further guarantee is provided for the axial limiting of the screw 34, and the sleeve 421 can also play a role in covering the driven gear 33 and reducing the pollution of the driven gear 33 by dust.

In one possible embodiment, referring to fig. 4 and 7, one end of the screw 34 is provided with a first positioning portion 341, the first positioning portion 341 is rotatably and axially limitedly mounted on the bracket 42, the other end of the screw 34 is provided with a second positioning portion 341, and the second positioning portion 342 is rotatably and axially limitedly mounted on the base 41. Thus, the screw 34 is rotatably and axially restrained between the bracket 42 and the base 41, and the driven gear 33 is fixed to the screw 34 so as to rotate between the bracket 42 and the base 41 following the screw 31 and restrained between the bracket 42 and the base 41.

In one example, the first positioning portion 341 may be a first limiting hole, the bracket 42 is provided with a first limiting boss 422, the first limiting boss 422 is inserted into the first limiting hole, and the screw 34 may rotate around the first limiting boss 422. Here, the mower may further include a first bearing, an inner ring of which is tightly fitted with the first limiting boss 422, and an outer ring of which is fixed in the first limiting hole, and can smoothly slide around the first limiting boss 422 using the screw 34.

In one example, the second positioning portion 342 may be a second limiting hole, the base 41 is provided with a second limiting boss 413, the second limiting boss 413 is inserted into the second limiting hole, and the screw 34 may rotate around the second limiting boss 413. Here, the mower may further include a second bearing, an inner ring of which is tightly fitted with the second limiting boss 413, and an outer ring of which is fixed in the second limiting hole, and is smoothly slid around the second limiting boss 413 using the screw 34.

In one example, the bracket 42 and the base 41 may be connected by a second connection member 52, and the second connection member 52 may be a screw or a bolt, which is not limited by the present utility model.

In one possible implementation, referring to fig. 6, the base 41 includes a lower limit structure and an inner receiving hole 411, two opposite sliding grooves 412 are provided on an inner surface of the inner receiving hole 411, two opposite sliding blocks 212 are provided on the cutting motor 21, and the sliding blocks 212 are matched with the sliding grooves 412 so that the cutting motor 21 can slide along the sliding grooves 412; the sliding stroke of the cutting motor 21 can be limited together by positioning the bracket 42 and the lower limit structure at the upper end and the lower end of the chute 412, respectively. With this solution, the two opposite sliding grooves 412 can stably slide the cutting motor 21 in the inner accommodation hole 411; and the bracket 42 is detachably mounted on the base 41 so that the cutter motor 21 can be put into the inner receiving hole 411 from the upper end, and the lower limit structure can prevent the cutter motor 21 from coming out of the inner receiving hole 411.

In addition, the cutter mechanism 20 includes a cutter head 22 connected to the cutter motor 21, and an output shaft of the cutter motor 21 downwardly protrudes out of the inner accommodating hole 411 to be connected to the cutter head 22 located below the base 41, and the cutter motor 21 drives the cutter head 22 to rotate.

In one example, referring to fig. 6, the base 41 may include a base frame 401 and a guide 402, the base frame 401 having an inner receiving hole 411 formed thereon, the two guide 402 being symmetrically installed on an inner surface of the inner receiving hole 411, the guide 402 including a base plate 4021 and two elastic claws 4022 symmetrically installed at both sides of the base plate 4021, the two elastic claws 4022 and the base plate 4021 surrounding to form a chute 412; the two sliders 212 of the cutter motor 21 are held by two elastic claws 4022 on one guide 402, respectively, so that the cutter motor 21 can reciprocate up and down along the slide groove 412. In this way, the elastic claw 4022 is in contact with the slider 212, and the elastic claw 4022 can absorb the shake of the cutting motor 21, so as to reduce the noise generated by the shake.

In one example, the dovetail groove 4111 may be provided on an inner surface of the inner receiving hole 411, and the guide 402 includes two side plates 4023, the two side plates 4023 being provided on opposite sides of the base plate 4021, and two elastic claws 4022 being mounted on inner surfaces of the side plates 4023, respectively. The outer surfaces of both side plates 4023 are inclined inward, that is, the angle between the outer surface of the side plate 4023 and the base plate 4021 is greater than 90 ° so that the guide 402 is matched with the dovetail groove 4111, so that the guide 402 cannot escape from the dovetail groove 411 in the radial direction of the inner accommodating hole 411.

Wherein, an ear plate 4024 may be further disposed on an outer surface of the side plate 4023, two second threaded holes 4011 are disposed on the base frame 401, the two second threaded holes 4011 are located at two sides of the dovetail slot 411, when the guide member 402 is accommodated in the dovetail slot 4111, the ear plate 4024 aligns with the second threaded holes 4011, and the guide member 402 is fixed on the base frame 401 by using the third connecting member 53 to pass through the ear plate 4024 and then be in threaded connection with the second threaded holes 4011.

In one example, the drive gear 32 may be rotatably mounted on the bracket 42, and the drive gear 32 is coupled to the adjustment knob 31 through the second relief port 4210. At this time, the entire elevating mechanism 30 and the cutting mechanism 20 are directly mounted on the base 41 and then mounted on the housing 10 through the base 41, and when the elevating mechanism 30 or the cutting mechanism 20 needs to be detached, the base 41 can be directly taken out from the sub-housing chamber together with the elevating mechanism 30 and the cutting mechanism 20. The modularized design is more convenient to assemble, and can improve the production efficiency of the mower.

At this time, the housing 10 of the mower is provided with the first escape opening 12, and the adjusting knob 31 is extended out of the housing 10 from the first escape opening 12 or connected to the driving gear 32 through the first escape opening 12.

In another example, referring to fig. 8 and 9, the driving gear 32 is rotatably mounted on the housing 10 of the mower, where the housing 10 is provided with a first avoiding port 12, and the sleeve 421 covering the driven gear 33 extends out of or is exposed to the first avoiding port 12, and the driving gear 32 is meshed with the driven gear 33 through the first avoiding port 12 and the second avoiding port 4210. At this time, the bracket 42 covers a part of the driven gear 33, prevents the driven gear 33 from being completely exposed to the first escape opening 12, and enhances the aesthetic appearance.

The utility model also provides a mower, referring to fig. 8 and 9, the mower comprises a secondary accommodating cavity, a shell 10 and the cutting module, wherein the secondary accommodating cavity is surrounded by the shell 10, and the shell 10 comprises a first avoiding port 12 communicated with the secondary accommodating cavity; the cutting module is partially accommodated in the secondary accommodating cavity, the adjusting knob 31 extends out of the first avoiding opening 12, and the cutter disc 22 is positioned outside the secondary accommodating cavity and below the shell 10.

Thus, based on the beneficial effects of the cutting module, the mower provided by the utility model can bias the cutter 22 to the left side or the right side of the housing 10, so that when the mower mows along the boundary of the working area, the cutting structure can be closer to the boundary, and the coverage rate of the mowing area is increased.

In one example, the cavity port of the secondary receiving cavity may be located on the lower surface of the housing 10, the first escape port 12 may be located on the upper surface of the housing 10, the adjusting knob 31 is located outside the housing 10, and the driving gear 32 is fixed on the outer surface of the housing 10, and is engaged with the driven gear 33 through the first escape port 12. In this way, the first avoiding opening 12 can be made smaller in size and is only used for avoiding the connecting part of the adjusting knob 31 and the driving gear 32; the cavity opening of the secondary receiving cavity is large, and the base 41 and the bracket 42 can be moved in and out together from the cavity opening, thereby facilitating modular assembly. Of course, the first avoiding port 12 may also be a cavity port of the secondary accommodating cavity, which is specifically located on the housing 10, and the present utility model is not limited thereto.

In one example, the housing 10 is provided with a mounting post 11, the mounting post 11 being used to mount the drive gear 32, the connection of the mounting post 11 and the drive gear 32 being described in detail hereinabove and not repeated here.

It is to be noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless defined otherwise. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be noted that, although specific embodiments of the present utility model have been described in detail with reference to the accompanying drawings, the present utility model should not be construed as limiting the scope of the present utility model. Various modifications and variations which may be made by those skilled in the art without the creative effort fall within the protection scope of the present utility model within the scope described in the claims.

Examples of embodiments of the present utility model are intended to briefly illustrate technical features of embodiments of the present utility model so that those skilled in the art may intuitively understand the technical features of the embodiments of the present utility model, and are not meant to be undue limitations of the embodiments of the present utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (12)

1. A cutting module, characterized in that the cutting module comprises:

-a cutting mechanism (20) comprising a cutterhead (22), the cutterhead (22) being used for mowing;

elevating system (30), including adjust knob (31) and gear drive subassembly, adjust knob (31) with gear drive subassembly is connected, gear drive subassembly with cutting mechanism (20) are connected, adjust knob (31) are passed through gear drive subassembly is adjusted blade disc (22) distance in vertical direction adjust knob (31) high, adjust knob (31) the central axis with the central axis of blade disc (22) is in the interval preset distance in first direction, first direction with vertical direction is perpendicular.

2. The cutting module according to claim 1, wherein the gear transmission assembly comprises a driving gear (32) and a driven gear (33), the adjusting knob (31) and the driving gear (32) are coaxially and fixedly connected, and the driving gear (32) is externally meshed with the driven gear (33);

the driven gear (33) is connected with the cutting mechanism (20) to drive the cutterhead (22) to ascend or descend relative to the adjusting knob (31).

3. A cutting module according to claim 2, wherein the rotation angle of the driving gear (32) is less than or equal to 360 ° during the lifting stroke of the cutterhead (22).

4. The cutting module according to claim 2, wherein the driving gear (32) comprises a gear body (321) and a cylinder (322) coaxially and fixedly connected with the gear body (321), and a first limit protrusion (3221) is arranged on the outer circumferential surface of the cylinder (322);

the adjusting knob (31) comprises a twisting part (311) and a connecting cylinder (312) which is coaxially and fixedly connected with the twisting part (311), a first limit groove (3121) is formed in the inner surface of the connecting cylinder (312), and the first limit groove (3121) extends along the axis of the connecting cylinder (312) and penetrates through the end face of the connecting cylinder (312);

the cylinder (322) is inserted into the inner hole of the connecting cylinder (312) along the axial direction of the driving gear (32), and the first limit protrusion (3221) is inserted into the first limit groove (3121) along the axial direction of the driving gear (32).

5. The cutting module according to claim 4, wherein a limiting hole (3120) is provided in the wall of the connecting cylinder (312), a groove (3223) is provided in the end surface of the cylinder (322), and a second limiting protrusion (3222) aligned with the groove (3223) is provided in the outer circumferential surface of the cylinder (322), and when the cylinder (322) is inserted into the inner hole of the connecting cylinder (312), the groove (3223) allows the cylinder (322) to be elastically deformed so that the second limiting protrusion (3222) can be inserted into the limiting hole (3120).

6. The cutting module according to claim 2, further comprising a first connecting piece (51), wherein a mounting post (11) is provided on a housing (10) of the mower, a first threaded hole is provided on an end surface of the mounting post (11), a mounting hole is provided on a side of the driving gear (32) facing the mounting post (11), and an axis of the mounting hole coincides with an axis of the driving gear (32); the mounting hole is sleeved on the mounting column (11) in a clearance fit manner, and the first connecting piece (51) penetrates through the driving gear (32) and is in threaded connection with the first threaded hole so as to limit the driving gear (32) to be separated from the mounting column (11).

7. The cutting module according to claim 2, wherein the lifting mechanism (30) further comprises a screw (34), and one end of the screw (34) is fixedly connected coaxially with the driven gear (33);

the cutting mechanism (20) comprises a cutting motor (21), the cutter disc (22) is connected with an output shaft of the cutting motor (21), an engagement portion (211) is arranged on the cutting motor (21), and the engagement portion (211) is engaged with the screw (34).

8. The cutting module according to claim 7, further comprising a bracket (42) and a base (41), the cutting motor (21) being slidably mounted on the base (41) in the vertical direction, the bracket (42) being detachably mounted above the base (41), the bracket (42) comprising a sleeve (421) covering the driven gear (33), the sleeve (421) having a second relief opening (4210), a portion of the toothed rim of the driven gear (33) being aligned with the second relief opening (4210) to engage with the driving gear (32) through the second relief opening (4210).

9. The cutting module according to claim 8, wherein one end of the screw (34) is provided with a first positioning portion (341), the first positioning portion (341) is rotatably and axially limitedly mounted on the bracket (42), the other end of the screw (34) is provided with a second positioning portion (342), and the second positioning portion (342) is rotatably and axially limitedly mounted on the base (41).

10. Cutting module according to claim 8, characterized in that the base (41) comprises a lower limit structure and an inner receiving hole (411), wherein two opposite slide grooves (412) are provided on the inner surface of the inner receiving hole (411), the slide grooves (412) extend in the vertical direction, and wherein two opposite slide blocks (212) are provided on the cutting motor (21), the slide blocks (212) being matched with the slide grooves (412) so that the cutting motor (21) can slide along the slide grooves (412);

the support (42) and the lower limiting structure are respectively positioned at the upper end and the lower end of the chute (412) so as to limit the sliding stroke of the cutting motor (21) together.

11. The cutting module according to claim 8, wherein the driving gear (32) is rotatably mounted on the bracket (42), and the driving gear (32) is connected with the adjusting knob (31) through the second escape port (4210).

12. A mower, characterized in that it comprises a secondary housing cavity, a housing (10) and a cutting module according to any one of the preceding claims 1-10, the secondary housing cavity being surrounded by the housing (10), the housing (10) comprising a first relief opening (12) communicating with the secondary housing cavity;

the cutting module is partially accommodated in the auxiliary accommodating cavity, the adjusting knob (31) extends out of the first avoiding opening (12), and the cutter disc (22) is positioned outside the auxiliary accommodating cavity and below the shell (10).