CN113711759A - Casing structure and lawn mower with air inlet compensation - Google Patents
Casing structure and lawn mower with air inlet compensation Download PDFInfo
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- CN113711759A CN113711759A CN202110813949.3A CN202110813949A CN113711759A CN 113711759 A CN113711759 A CN 113711759A CN 202110813949 A CN202110813949 A CN 202110813949A CN 113711759 A CN113711759 A CN 113711759A
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- air inlet
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D43/00—Mowers combined with apparatus performing additional operations while mowing
- A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
- A01D43/063—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mower; Containers therefor
- A01D43/0638—Rigid containers
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Abstract
The invention discloses a casing structure with air intake compensation, comprising: the casing comprises a casing main body, a casing cover and a casing cover, wherein a cavity is arranged on the casing main body in a penetrating manner, and the casing main body comprises a connecting surface and a working surface which are arranged oppositely; the air inlet unit, a plurality of the air inlet unit sets up around the casing main part, just the air outlet of air inlet unit is located and is close to working face one end. The lawn mower with the housing structure can enable the lawn mower to have more air inflow in the low-gear (close to the ground) mowing process, the total flow of air at a grass outlet of the lawn mower can be increased due to the increase of the air inflow at the bottom, the air outflow is increased, the air flow of the motor is accelerated due to the siphonage, the heat dissipation of the motor is improved, the utilization rate of the volume of the grass frame is improved, and the frequency of cleaning the grass frame by an operator in the using process is reduced.
Description
Technical Field
The invention relates to the field of weeding mechanical equipment, in particular to a housing structure with air inlet compensation and a mower.
Background
A lawn mower, which is one of the most commonly used garden tools, uses a motor and an engine as a driving device to drive a cutting part to perform cutting and collecting operations on grass. The rotary blade of the mower firstly cuts grass, and secondly, the blade is provided with a certain bend angle, the rotary blade can play the role of a fan in the rotating process, the grass can be discharged out of the machine shell by using air flow while being cut off and thrown into the collecting frame, the mower needs to cut grass with different heights in the using process, so the prior mower is generally provided with a grass cutting height adjusting function, when the height of the bottom of the machine shell of the mower is lower than the height of the actual grass and even level with the ground after being reduced to a certain height, the chassis of the mower can be tightly extruded with the grass in the grass cutting process, so that air is difficult to enter the machine shell through the bottom of the machine shell, the grass discharging efficiency is greatly reduced due to lack of air, the grass discharging of the prior mower is driven by the air flow formed by the rotary motion of the blade, and the wind speed and the wind volume of the grass outlet directly influence the grass cutting collecting effect, the grass collecting effect of the existing grass mower on the market under the condition generally has a problem, and the problem is more serious when the height of the bottom of the machine shell is adjusted to be close to the ground.
Patent document 1 discloses a lawnmower relating to a mower, including an engine, a cover basin, a transmission member, a blower impeller, and a blade, wherein a connection disc is installed between the engine and the cover basin, and at least one ventilation notch is formed in a side portion of the connection disc; the bottom surface of the connecting disc is connected with the cover basin, and the top surface of the connecting disc is attached to the bottom surface of the engine; the cover basin is provided with a vent hole, the edge of the vent hole is provided with a plurality of connecting convex heads with through holes, the bottom edge of the connecting disc is provided with a flange, the flange is provided with through holes corresponding to the connecting convex heads, and bolt connecting pieces are arranged in the through holes of the connecting convex heads and the through holes of the flange; the connecting convex head is provided with a groove, and a nut is arranged in the groove; the transmission part is provided with a through hole, a bolt passes through the through hole to be connected with a transmission shaft of the engine, and a blast impeller and a blade are clamped between the bolt and the transmission shaft; a first through hole and a second through hole are formed in the transmission piece, a channel is formed in the edge of the second through hole, and a flange is attached to one end of the transmission piece. The air supply effect is realized through the structure of the vent groove of the connecting disc and the air blowing impeller.
However, the structure of patent document 1 needs to be used in cooperation with a blower, requires a large installation space, does not solve the problem that it is difficult to supplement air from the bottom when the housing is attached to the ground (the blade is close to the ground), and does not solve the problems of mowing efficiency and grass collection well.
Patent document 1: CN 201054890.
Disclosure of Invention
In order to avoid the defects in the prior art, the invention provides a machine shell structure with an air inlet compensation effect and a mower using the machine shell structure. The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a casing structure with air intake compensation, comprising: the casing comprises a casing main body, a casing cover and a casing cover, wherein a cavity is arranged on the casing main body in a penetrating manner, and the casing main body comprises a connecting surface and a working surface which are arranged oppositely; the air inlet unit, a plurality of the air inlet unit sets up around the casing main part, just the air outlet of air inlet unit is located and is close to working face one end. In some embodiments, the air intake unit described above includes:
the air conditioner comprises a shell body, a plurality of side air inlet channels, a plurality of air outlet channels and a plurality of air outlet channels, wherein the side air inlet channels are longitudinally arranged on the left side and the right side of the shell body and comprise air inlet plates and connecting plates;
and at least one front air inlet channel is transversely arranged on the front side of the machine shell main body.
The side air intake duct described above supplies air from both the left and right sides of the main body of the housing (combined with the mower) and supplies air from both the left and right sides, with the lateral movement direction of the main body of the housing as the left and right direction.
The air is supplied from the front side of the housing main body by the front air intake duct described above, with the forward and backward directions of the housing main body (combined with the mower) being the forward and backward directions.
In several embodiments, the first air inlet plate is connected to the main body of the cabinet, and the lower edge of the second air inlet plate extends toward the working surface and downwardly beyond the first air inlet plate.
The arrangement of the first air inlet plate and the second air inlet plate realizes the top air inlet of the side air inlet channel, and the bottom of the air inlet channel discharges air to the inside of the machine shell main body, so that air is supplied and grass scraps are taken away.
In addition, in several embodiments, the lower edge of the second air inlet plate is connected with an arc plate which has a radian and is bent towards one side of the first air inlet plate.
By another supplementary structure of above-mentioned second air inlet board, better to the air inlet guide, improve the tonifying qi effect.
In several embodiments, the housing body includes an arc top, a first sidewall, and a second sidewall, the first sidewall is disposed around an inner wall of the arc top, the second sidewall is disposed around an outer wall of the arc top, and the first sidewall and the arc top form the cavity.
With the above-described structure of the housing main body, a space for accommodating other components is provided.
In several embodiments, the first air inlet panel is attached to the second side wall such that the lower edge of the first air inlet panel is flush with or extends downwardly beyond the lower edge of the second side wall.
By the arrangement and the structure of the first air inlet plate, the influence on the air supply process is avoided.
In several embodiments, the front air intake channel includes a base and an air inlet pipe, the base is connected with the second sidewall, a ventilation gap exists between the middle of the base and the second sidewall, the air inlet pipe is arranged on the base, and the air inlet pipe corresponds to the ventilation gap.
By the structure of the front air inlet channel, a certain manual power air supplementing effect can be achieved in the advancing process of the mower, and the air supplementing amount is improved.
The invention provides a mower which comprises the casing structure, an upper cover body, a power assembly and a blade group, wherein the upper cover body is arranged on the casing structure;
the upper cover body is connected with the shell main body and corresponds to the connecting surface, and the upper cover body is used for covering the cavity;
the power assembly comprises a fixed seat and a motor, the fixed seat is arranged in the cavity and used for fixing the motor;
the blade group is connected with the motor, the motor drives the blade group to move, and the blade group is arranged in the second side wall.
In several embodiments, the blade set is located above the lower edge of the first air inlet plate or between the lower edge of the first air inlet plate and the lower edge of the second air inlet plate.
The blade group, the first air inlet plate and the second air inlet plate are arranged, so that air can conveniently enter and compensate according to air hydrodynamics.
In some embodiments, the lawn mower further includes a handle, a collecting box, and a wheel set, the wheel set is disposed on two sides of the housing body and the base, the handle is connected to the housing body, the collecting box is disposed on a rear side of the housing body, and the collecting box is configured to accommodate cut grass.
The invention has the following beneficial effects:
according to the invention, the air inlet channel is arranged at the bottom of the housing main body, so that the mower has more air inlet amount in the low-gear (close to the ground) mowing process, the total flow of air at the grass outlet of the mower is increased due to the increase of the air inlet amount at the bottom, the air outlet amount is increased, the air flow of the motor is accelerated due to the siphonage, the heat dissipation of the motor is improved, meanwhile, the increase of the air outlet amount accelerates the initial speed of grass clippings which are ejected outwards along with the air, the grass clippings are thrown to a farther position, the far end of the grass collecting frame of the mower is filled with the grass clippings firstly, and the grass clippings are stacked gradually close to the air inlet end, so that the volume of the grass frame can be utilized to the maximum, and the frequency of cleaning the grass frame by an operator in the using process is reduced.
The air supplementing device is not required to be matched with an external supplement impeller structure such as an air blower for use, is more excellent in cost and overall weight, is matched with an air supplementing process, is more convenient for the moving process of the mower, and reduces mowing resistance.
Drawings
Fig. 1 schematically shows a three-dimensional structure of a connection surface direction of a case structure in an embodiment;
FIG. 2 schematically illustrates a face-side-oriented perspective structure of a housing structure in one embodiment;
FIG. 3 schematically illustrates a top plan view of a face direction of a housing structure in one embodiment;
fig. 4 schematically illustrates an explosive structure of the lawn mower in an embodiment, wherein the handrail, the collection box, and the wheel set are not included.
FIG. 5 schematically illustrates a side cross-sectional configuration of the lawn mower in an embodiment in use;
FIG. 6 schematically illustrates another side cross-sectional configuration of the lawn mower in an embodiment in use;
FIG. 7 schematically illustrates an enlarged structure of the portion A in an embodiment;
fig. 8 schematically shows another enlarged structure of the a portion;
FIG. 9 schematically illustrates another two enlarged configurations of section A;
fig. 10 schematically shows another three enlarged structures of the a portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of the present invention.
The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting and/or limiting of the invention.
For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "relative", "front-back-left-right" and the like indicate relative or absolute arrangements, and indicate not only such arrangements in a strict sense but also a state of being relatively displaced with a tolerance or an angle or a distance to the extent that the same function can be obtained.
Fig. 1 and 2 show the structure of the connection surface and working surface direction of the casing structure, respectively, the casing structure is mainly composed of a casing main body 10 and an air intake unit 20, a cavity 1010 is penetratingly disposed on the casing main body 10, the casing main body 10 includes a connection surface 11 and a working surface 12 which are disposed oppositely, the connection surface 11 is a side where the casing main body is connected to other components such as a housing, and the working surface 12 is a side where the weeds act on the ground, which is not an actual structure but only shows two opposite directions.
Casing main part 10 includes an annular arc top 101, a cylindric first lateral wall 102, a cylindric second lateral wall 103, first lateral wall 102 encircles the setting along the inner wall of arc top 101, second lateral wall 103 encircles the setting along the outer wall of arc top 101, first lateral wall 102 constitutes with arc top 101 cavity 1010 is provided by casing main part 10's structure, has provided the space that holds other subassemblies, and whole circular-like's structure, can reduce the resistance.
And a plurality of the air inlet unit 20 is arranged around the casing body 10, and the air outlet of the air inlet unit 20 is positioned at one end close to the working surface 12, namely the position of the air outlet is close to one end close to the ground.
As shown in fig. 3, the air intake unit 20 includes a side air intake channel 210 and a front air intake channel 220.
Wherein, the side air inlet channels 210 are longitudinally arranged at the left and right opposite sides of the casing main body 10 (that is, the air inlet direction of the side air inlet channel 210 is longitudinal), and the direction of the vertical movement (far away from or close to the ground) of the casing main body (combined with the mower) is longitudinal, the side air inlet channel comprises an air inlet plate and a connecting plate, the air inlet plate and the connecting plate enclose to form an air channel for air to pass through, specifically, the side air inlet channel 210 comprises a first air inlet plate 2101, a second air inlet plate 2102 and a connecting plate 2103, the first air inlet plate 2101 and the second air inlet plate 2102 are oppositely arranged, two connecting plates 2103 are arranged between the first air inlet plate 2101 and the second air inlet plate 2102, the first air inlet plate 2101, the second air inlet plate 2102 and two connecting plates 2103 enclose to form an air channel for air to pass through, two adjacent side air inlet channels 210 are connected by the connecting plate 2103, the lateral air inlet channel 210 is arranged along the outer wall of the second side wall, and changes in corresponding radian transition along with the radian of the lateral air inlet channel, so that the whole body is more attractive, and certain mowing resistance can be reduced.
The lateral air intake duct 210 described above supplies air from both the left and right sides of the main body of the housing (combined with the lawnmower) to the left and right lateral direction, and supplies air from both the left and right sides.
And the first air inlet plate 2101 is connected with the second lateral wall 103, the lower edge of the first air inlet plate 2101 is flush with the lower edge of the second lateral wall 103 or the lower edge of the first air inlet plate exceeds the lower edge of the second lateral wall downwards. Through the arrangement and the structure of first air inlet plate, combine the air fluid characteristic, avoid causing the influence to the tonifying qi process.
As shown in fig. 7, the first air inlet plate 2101 is attached to the cabinet main body 10, and the lower edge of the second air inlet plate 2102 extends toward the working surface 12 side and downwardly beyond the first air inlet plate 2101. Through the arrangement of first air inlet plate and second air inlet plate, realize the top air inlet of lateral part inlet air channel to by the inside air-out of bottom to casing main part, realize the tonifying qi and take away the grass bits.
Or, as shown in fig. 8, an arc plate 211 is connected to the lower edge of the second air inlet plate 2102, the arc plate 211 has a curvature and is bent toward the first air inlet plate 2101, so that the bent end of the arc plate 211 forms a structure of a straight extension plate 212, the extension plate 212 extends to a position right below the first air inlet plate 2101, a gap exists between the extension plate 212 and the first air inlet plate 2101, and of course, the end may also be inclined and arranged directly obliquely upward or obliquely downward. The air inlet can be better guided, and the air supplementing effect is improved.
It is also possible that the extension plate 212 is positioned at the lower left of the first air inlet plate 2101 as shown in fig. 9 as compared to fig. 8, and further that the extension plate 212 is positioned at the lower right of the first air inlet plate 2101 as shown in fig. 9.
And, the front air intake channel 220, at least one said front air intake channel 220 is transversely set up in the front side of the chassis body 10, namely the front air intake channel is in a perpendicular relation with the air intake direction of the lateral air intake channel. The front air inlet channel 220 comprises a base 2201 and an air inlet pipe 2202, the base 2201 is connected with the second side wall 103, a ventilation gap 2203 exists between the middle of the base 2201 and the second side wall 103, the air inlet pipe 2202 is arranged on the base 2201, the air inlet pipe 2202 corresponds to the ventilation gap 2203, the base protrudes towards the front part, the left side and the right side of the base are used for fixing a wheel set, the air inlet pipe 2202 can adopt a structure with a cross section in a shape like a Chinese character 'kou', a trapezoid, a circle or other polygons, so long as the air inlet effect can be realized, the air is conveniently entered from the front part, the ventilation gap is located at the lower position of the air inlet pipe, the air enters from the air inlet pipe, the ventilation gap is introduced downwards to enter the bottom of the machine shell main body, the air supply is realized, the upper edge of the air inlet pipe is lower than or can be flush with the upper edge of the second side wall, and the air inlet is prevented from being discharged from the upper edge.
Through the arrangement of the front air inlet channel 220, in the advancing process of the mower, air is introduced from the front, and then enters the position of the bottom blade set through the ventilation gap 2203, so that a certain artificial power air supplementing effect can be achieved, and the air supplementing amount is improved.
As shown in fig. 4, 5 and 6, the mower provided in this embodiment includes a housing structure, an upper cover 30, a power assembly 40, a blade set 50, a handle 60, a collection box 70 and a wheel set 80, wherein the upper cover 30 is connected to the housing structure, the power assembly is disposed in the housing structure and is enclosed by the upper cover for driving the blade set to perform mowing movement, the corresponding handle, collection box and wheel set are conventional components, the wheel set 80 is disposed on both sides of the housing main body 10 and the base 2201, the handle 60 is connected to the housing main body 10, the collection box 70 is disposed on the rear side of the housing main body 10, and the collection box 70 is used for accommodating cut grass. .
The upper cover 30 is connected to the casing main body 10, the upper cover 30 corresponds to the connecting surface 11, and the upper cover 30 is used to cover the cavity 1010; the power assembly 40 comprises a fixed seat 401 and a motor 402, wherein the fixed seat 401 is arranged in the cavity 1010, and the fixed seat 401 is used for fixing the motor 402; the blade set 50 is connected to a motor 402, the motor 402 moves the blade set 50, and the blade set 50 is disposed in the second sidewall 103.
And the blade group 50 is located above the lower edge of the first air inlet plate 2101 or between the lower edge of the first air inlet plate 2101 and the lower edge of the second air inlet plate 2102, and the arrangement of the positions of the blade group, the first air inlet plate and the second air inlet plate ensures that when air is introduced into the blade group, the air introduction direction is located below the blade group, so that air can conveniently enter and compensate according to air hydrodynamics, grass clippings can be taken away, and the grass cutting resistance can be reduced.
The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All manner of description herein may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
The present invention describes preferred embodiments, including the best mode known to the inventors for carrying out the invention. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors envision that the variations may be used as appropriate by those skilled in the art and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications encompassed within the spirit and scope of the invention as defined by the claims. Moreover, any and all possible variations of the above-described elements are encompassed by the present invention unless otherwise indicated herein or otherwise clearly contradicted by context.
Description of the marks
10 case body
101 arc top
102 first side wall
103 second side wall
11 connecting surface
12 working surface
1010 cavity
20 air inlet unit
210 side air inlet channel
2101 first air inlet plate
2102 second air intake plate
2103 connecting plate
211 arc plate
212 extension plate
220 front air inlet channel
2201 base
2202 air inlet pipe
2203 Ventilation gap
30 upper cover body
40 power assembly
50 blade set
60 arm
70 collecting box
80 wheel groups.
Claims (10)
1. An enclosure structure with air intake compensation, comprising:
the casing comprises a casing main body, a casing cover and a casing cover, wherein a cavity is arranged on the casing main body in a penetrating manner, and the casing main body comprises a connecting surface and a working surface which are arranged oppositely;
the air inlet unit, a plurality of the air inlet unit sets up around the casing main part, just the air outlet of air inlet unit is located and is close to working face one end.
2. The cabinet structure with air intake compensation according to claim 1, wherein the air intake unit includes:
the air conditioner comprises a shell body, a plurality of side air inlet channels, a plurality of air outlet channels and a plurality of air outlet channels, wherein the side air inlet channels are longitudinally arranged on the left side and the right side of the shell body and comprise air inlet plates and connecting plates;
and at least one front air inlet channel is transversely arranged on the front side of the machine shell main body.
3. The cabinet structure with air intake compensation as claimed in claim 2, wherein the air inlet plate is formed by a first air inlet plate and a second air inlet plate which are oppositely arranged, the first air inlet plate is connected with the cabinet main body, and the lower edge of the second air inlet plate extends to the working face side and downwardly beyond the first air inlet plate.
4. The structure of claim 3, wherein the second air inlet plate has an arc plate connected to a lower edge thereof, the arc plate having an arc shape and being bent toward the first air inlet plate.
5. The intake air compensation cabinet structure of claim 4, wherein the cabinet body comprises an arc top, a first side wall, and a second side wall, the first side wall is disposed around the inner wall of the arc top, the second side wall is disposed around the outer wall of the arc top, and the first side wall and the arc top form the cavity.
6. The air intake compensation cabinet structure of claim 5, wherein the first air inlet panel is attached to the second side wall, and the lower edge of the first air inlet panel is flush with or extends downwardly beyond the lower edge of the second side wall.
7. The housing structure with air intake compensation of claim 5, wherein the front air intake channel comprises a base and an air intake duct, the base is connected to the second side wall, a ventilation gap exists between the middle of the base and the second side wall, the air intake duct is disposed on the base, and the air intake duct corresponds to the ventilation gap.
8. A lawnmower comprising a housing structure with air intake compensation according to any one of claims 1 to 6, further comprising:
the upper cover body is connected with the shell main body and corresponds to the connecting surface, and the upper cover body is used for covering the cavity;
the power assembly comprises a fixed seat and a motor, the fixed seat is arranged in the cavity, and the fixed seat is used for fixing the motor;
the blade group is connected with the motor, the motor drives the blade group to move, and the blade group is arranged in the second side wall.
9. The lawnmower of claim 8, wherein the blade set is positioned above a lower edge of the first air inlet panel or between the lower edge of the first air inlet panel and a lower edge of the second air inlet panel.
10. The mower of claim 9, further comprising a handle, a collecting box and a wheel set, wherein the wheel set is disposed on both sides of the main housing and the base, the handle is connected to the main housing, the collecting box is disposed on the rear side of the main housing, and the collecting box is used for containing cut grass.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813949.3A CN113711759A (en) | 2021-07-19 | 2021-07-19 | Casing structure and lawn mower with air inlet compensation |
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| CN202110813949.3A CN113711759A (en) | 2021-07-19 | 2021-07-19 | Casing structure and lawn mower with air inlet compensation |
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| CN113711759A true CN113711759A (en) | 2021-11-30 |
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| US20210029875A1 (en) * | 2019-08-02 | 2021-02-04 | Makita Corporation | Lawn mower |
| CN112314163A (en) * | 2020-11-03 | 2021-02-05 | 商丘工学院 | Multifunctional mowing device for agricultural machinery |
| CN112586177A (en) * | 2020-11-10 | 2021-04-02 | 浙江亚特电器有限公司 | Mower with independent heat dissipation air duct |
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