CN104500303A - Small air-cooled diesel engine for lawn mower - Google Patents
Small air-cooled diesel engine for lawn mower Download PDFInfo
- Publication number
- CN104500303A CN104500303A CN201410678943.XA CN201410678943A CN104500303A CN 104500303 A CN104500303 A CN 104500303A CN 201410678943 A CN201410678943 A CN 201410678943A CN 104500303 A CN104500303 A CN 104500303A
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- China
- Prior art keywords
- air
- empty
- air inlet
- diesel engine
- inlet cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N3/00—Other muscle-operated starting apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/026—Air cleaners acting by guiding the air over or through an oil or other liquid bath, e.g. combined with filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
Abstract
The invention discloses a small air-cooled diesel engine for a lawn mower. An output shaft is back onto a starting pulling disc assembly and is positioned in front of the diesel engine which is in a working state; the starting pulling disc assembly is positioned at the rear of the diesel engine which is in the working state; a cylinder head is positioned at the front end of the upper portion of an engine body; and an oil tank and a muffler are positioned on two sides of the rear end of the upper portion of the engine body. Particularly, the oil tank is positioned on the left side of the engine body, the muffler is positioned on the right side of the engine body, and an air filter is positioned between the oil tank and the muffler and is connected with an air feeding tube. The diesel engine can be restarted in a controlled manner, so that the starting efficiency and the working safety are greatly improved. Moreover, the small air-cooled diesel engine is compact in structure; and miniaturization of the diesel engine can be realized conveniently.
Description
Technical field
The present invention relates to internal-combustion engine technology to improve, specifically refer to a kind of lawn machine small-sized air-cooling type, belong to general dynamic technical field.
Background technique
Along with the development in city, the input of urban afforestation is increasing.In many cities and small town, often build a large amount of lawn, time lawn growth arrives certain, needed to prune, to keep the beautiful scenery in gardens.In order to repair lawn, prior art devises special small-sized lawn trimmer (abbreviation lawn machine).The power of lawn machine is diesel engine, is generally single-cylinder air-cooled small diesel engine.Because lawn machine is often hand-pushing, power is all smaller, and when cutting the grass on a lawn, as fruit branch leaf is longer, branches and leaves are easily wrapped on cutter, thus cause stopping working, and restarts once flame-out just needs.In existing lawn mower Design Technology for Diesels, all by starting pulling plate hand pull starting-up, and starting the side that pulling plate is generally all located at lawn mower, needing operator to re-start startup around to machine side surface, very inconvenient.Meanwhile, if machine is parked on the lawn of inclination, or grass on lawn is softer, because when people starts, both hands leave handrail, loses the control to machine, therefore may occur the danger that machine is tumbled.In order to avoid this danger, have to machine to be parked in a safer place, but this can affect start-up course again.Meanwhile, existing lawn mower diesel engine constituent elements is arranged comparatively loose, compact not, causes overall machine volume bigger than normal.
In addition, because lawn machine is in the process of weeding, a large amount of brokenly to cut can be produced, dance in the air everywhere, and any motor Dou You admission gear, although carry out clean filtration by air-strainer to air before air inlet, if over-burden for air-strainer, air-strainer filtering effect can be affected equally, finally affect engine life.And the dust being entrained with careless slag that lawn machine work produces just is easy to the filtration affecting air-strainer, causes filter element replacing frequent on the one hand, also damage motor on the other hand.
Summary of the invention
For prior art above shortcomings, the object of the present invention is to provide a kind of lawn machine small-sized air-cooling type, this diesel engine can realize again starting not departing under the control to machine, the better effects if of air-filtering simultaneously.
To achieve these goals, the technical solution used in the present invention is such:
A kind of lawn machine small-sized air-cooling type, comprise fuel tank, air-strainer, silencing apparatus, valve mechanism cover, cylinder head, output shaft, operating grip support, start pulling plate assembly, body and suction tude, wherein air-strainer is connected with suction tude between fuel tank and silencing apparatus; It is characterized in that: described output shaft and startup pulling plate assembly are arranged dorsad, and wherein output shaft is positioned at the dead ahead of diesel engine working state, starts the dead astern that pulling plate assembly is positioned at diesel engine working state; Cylinder head is positioned at front end above body, and fuel tank and silencing apparatus are positioned at both sides, rear end above body; Wherein fuel tank is positioned on the left of body, and silencing apparatus is positioned on the right side of body, and air-strainer is between fuel tank and silencing apparatus and be connected with suction tude;
Described air-strainer is oil bath air cleaner, it mainly comprises sky lower cover, empty upper cover, metal filtering core, sponge filter core, empty case member and center tracheae, metal filtering core and sponge filter core are arranged in sky lower cover by respective fitting seat, and empty upper cover docks with empty lower cover and closes up the closed cylindrical structure of formation one and by bindiny mechanism's stressed joint; Be respectively equipped with a circular hole in the central position of empty upper cover upper end end face and sponge filter core and metal filtering core, center tracheae to be extend in sky lower cover by above-mentioned circular hole successively and is positioned at above the oil bath bottom sky lower cover;
Sky covers and is provided with an air inlet cylinder, air inlet cylinder is provided with some inlet holes; In air inlet cylinder, be provided with closing in conically shaped upward, on the endless belt between conically shaped and center tracheae, equal angles is provided with some coarse filtration blades, and all coarse filtration blades are obliquely installed formation helix structure in the same direction; Connected by annular connecting plate between air inlet cylinder and conically shaped, the inlet hole on air inlet cylinder is positioned under annular connecting plate, and annular connecting plate is provided with dust-discharging mouth; By empty case member end face air inlet cylinder is pressed on sky while empty case member is connected with center tracheae and covers.
Described air inlet cylinder lower end surface is provided with some profile of tooth breach, and this profile of tooth breach forms described inlet hole.
Described empty upper cover and empty lower cover closed position are provided with seal ring; Between sponge filter core and center tracheae, be provided with sealing gasket, seal ring and sealing gasket are rubber material and make.
The Placement of described empty case member and center tracheae is: be diametrically provided with a horizontal stroke side in tracheae upper-end surface, center, horizontal stroke side is arranged the screw rod that is positioned at central gas tubular axis line, empty case member to be enclosed within screw rod and to be pressed on air inlet cylinder by empty case member end face by nut check.
Compared to existing technology, the present invention has following beneficial effect:
1, output shaft is positioned at the dead ahead of diesel engine working state by this diesel engine, start the dead astern that pulling plate assembly is positioned at diesel engine working state, easily arrange trimming tool on the one hand, start pulling plate assembly on the other hand and be positioned at machine rear, even if need again to start, also a manual control handrail can be lived, only needing to vacate another hand to carry out starting, need not, as existing structure, needing around arriving machine side surface, therefore more convenient, efficiency is higher.Simultaneously because operator does not depart from the control to machine, so start-up course is safer.
2, this diesel oil tank is positioned on the left of body, silencing apparatus is positioned on the right side of body, air-strainer is between fuel tank and silencing apparatus, when so both solving oiling, because silencing apparatus may the potential safety hazard (because both leave comparatively far away, fuel oil is not easy to drip and is spread across on silencing apparatus) come of temperature higher band, the air that the high temperature produced during silencing apparatus work simultaneously also enters side air-strainer has suitable pre-heat effect, be more conducive to again start, oil inflame is more abundant.
3, air is by the preliminary filtration of coarse filtration blade and conically shaped, and in air, the dust of more than 80% is centrifuged power and gets rid of in the laying dust groove between air inlet cylinder and conically shaped, then is discharged by dust removal port.Tentatively filtered by this, significantly reduce the filtering burden of follow-up filtering section, improve the overall smoothing effect of air filter, extend maintenance period.
Although 4 air inlets and dedusting all will by the suction ports on air inlet cylinder, this product on intake resistance without impact, with improve before the intake resistance of air-strainer consistent.
5, by after carrying out above-mentioned improvement to air-strainer, this diesel engine combusts is more abundant, and engine operation is more reliable.
Accompanying drawing explanation
Fig. 1-lawn machine diesel engine general arrangement schematic of the present invention.
Fig. 2-Fig. 1 rear view.
Fig. 3-air filtering device structure schematic diagram of the present invention.
The B-B sectional view of Fig. 4-Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
See Fig. 1 and Fig. 2, upper as can be seen from figure, lawn machine small-sized air-cooling type of the present invention, comprise fuel tank 31, air-strainer 32, silencing apparatus 33, valve mechanism cover 34, cylinder head 35, output shaft 36, operating grip support 37, start pulling plate assembly 38, body 39 and suction tude 40, wherein air-strainer 32 is connected with suction tude 40 between fuel tank 31 and silencing apparatus 33.Described output shaft 36 and startup pulling plate assembly 38 are arranged dorsad, and wherein output shaft 36 is positioned at the dead ahead of diesel engine working state, starts the dead astern that pulling plate assembly 38 is positioned at diesel engine working state; Cylinder head 35 is positioned at front end above body 39, and fuel tank 31 and silencing apparatus 33 are positioned at both sides, rear end above body 39.Particularly, described fuel tank 31 is positioned on the left of body 39, and silencing apparatus 33 is positioned on the right side of body 39, and air-strainer 32 is between fuel tank 31 and silencing apparatus 33 and be connected with suction tude 40.
Output shaft 36 is positioned at the dead ahead of diesel engine working state by this engine block, start the dead astern that pulling plate assembly 38 is positioned at diesel engine working state, output shaft easily can arrange trimming tool by fairly simple structure on the one hand, start pulling plate assembly 38 on the other hand and be positioned at machine rear, even if need again to start, also a manual control handrail can be lived, only need to vacate another hand to carry out starting, need not as existing structure, need around arriving machine side surface, therefore more convenient, efficiency is higher.Simultaneously because operator does not depart from the control to machine, so start-up course is safer.
In order to realize more reasonably arranging, this diesel oil tank 31 is positioned on the left of body 39, silencing apparatus 33 is positioned on the right side of body 39, air-strainer 32 is between fuel tank 31 and silencing apparatus 33, when so both solving oiling, the potential safety hazard come due to silencing apparatus possibility temperature higher band (is left far away because of both, fuel oil is not easy to drip and is spread across on silencing apparatus), the air that the high temperature produced during silencing apparatus work simultaneously also enters side air-strainer has suitable pre-heat effect, be more conducive to again start, oil inflame is more abundant.
Described air-strainer 32 is oil bath air cleaner, and in order to alleviate the burden of air-strainer 32, this diesel engine improves it simultaneously.Specifically see Fig. 3 and Fig. 4, upper as can be seen from figure, it mainly comprises sky lower cover 1, empty upper cover 2, metal filtering core 3, sponge filter core 4, empty case member 5 and center tracheae 6, metal filtering core 3 and sponge filter core 4 are arranged in sky lower cover 1 by respective fitting seat, and empty upper cover 2 and empty lower cover 1 are docked and close up the closed cylindrical structure of formation one and be connected by bindiny mechanism's tight (clip 7).Be respectively equipped with a circular hole in the central position of empty upper cover upper end end face and sponge filter core and metal filtering core, center tracheae 6 to be extend in sky lower cover 1 by above-mentioned circular hole successively and is positioned at above the oil bath 8 bottom sky lower cover.Form oil bath for splendid attire machine oil bottom empty lower cover, be provided with the oiling scale 9 of a ring-type in bottom centre, in order to show that machine oil can not exceed the height of ring-type oiling scale.Scale 9 wall that refuels is provided with some through holes 10, and to make oiling scale internal-external machine oil phase lead to, object is oil bath center also organic oil when ensureing machine tip, is unlikely to all to flow to.
Before air enters oil bath, arrange one coarse filtration link to alleviate follow-up filtering burden, concrete structure is: on empty upper cover 1, be provided with an air inlet cylinder 11, and air inlet cylinder 11 is provided with some inlet holes 12.In air inlet cylinder 11, be provided with closing in conically shaped 13 upward, on the endless belt between conically shaped 13 and center tracheae 6, equal angles is provided with some coarse filtration blades 14, and all coarse filtration blades are obliquely installed formation helix structure in the same direction.Connected by annular connecting plate 15 between air inlet cylinder 11 and conically shaped 13, the inlet hole 12 on air inlet cylinder is positioned under annular connecting plate 15, and annular connecting plate 15 is provided with dust-discharging mouth 16.By empty case member 5 end face, air inlet cylinder 11 is pressed on sky upper cover 1 while empty case member 5 is connected with center tracheae 6.Add man-hour actual, air inlet cylinder 11, conically shaped 13 and annular connecting plate 15 adopt transparent plastic material one-body molded.
Described air inlet cylinder 11 lower end surface is provided with some profile of tooth breach, and this profile of tooth breach forms described inlet hole 12.Dust directly can skid off suction port along empty upper cover upper surface, is more conducive to the thorough discharge of dust like this.
Described empty upper cover 2 is provided with seal ring 17 with empty lower cover 1 closed position, produces leakage to avoid air in closed position.Sealing gasket 18 is provided with, to guarantee that air can all be filtered by sponge filter core between sponge filter core 4 and center tracheae 6.Seal ring and sealing gasket are rubber material and make.
As a kind of Placement, empty case member with concrete connection of center tracheae is: be diametrically provided with a horizontal stroke side 19 in center tracheae 6 upper-end surface, horizontal stroke side 19 is arranged the screw rod 20 that is positioned at central gas tubular axis line, empty case member 5 is enclosed within to lock on screw rod 20 and by nut 21 and is pressed on air inlet cylinder 11 by empty case member 5 end face.
After air of the present invention enters air inlet cylinder 11, helix structure due to coarse filtration blade 14 produces eddy current when making air enter conically shaped by coarse filtration blade, add the cone structure of conically shaped 13, thus generation centrifugal force makes the most of dust separation in air and air, dust because centrifugal force is thrown out of in the laying dust groove between air inlet cylinder and conically shaped, and is discharged from this air-strainer by the dust-discharging mouth 16 on annular connecting plate and the suction port 12 on air inlet cylinder.Air then back enters center tracheae 6 and enters oil bath 8 by residual part dust adsorption, again successively by the filtering dust that metal filtering core 3 and sponge filter core 4 will remain in air, thus the air of going out from flange 22 is made to be cleaner air after repeatedly processing.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a lawn machine small-sized air-cooling type, comprise fuel tank, air-strainer, silencing apparatus, valve mechanism cover, cylinder head, output shaft, operating grip support, start pulling plate assembly, body and suction tude, wherein air-strainer is connected with suction tude between fuel tank and silencing apparatus; It is characterized in that: described output shaft and startup pulling plate assembly are arranged dorsad, and wherein output shaft is positioned at the dead ahead of diesel engine working state, starts the dead astern that pulling plate assembly is positioned at diesel engine working state; Cylinder head is positioned at front end above body, and fuel tank and silencing apparatus are positioned at both sides, rear end above body; Wherein fuel tank is positioned on the left of body, and silencing apparatus is positioned on the right side of body, and air-strainer is between fuel tank and silencing apparatus and be connected with suction tude;
Described air-strainer is oil bath air cleaner, it mainly comprises sky lower cover, empty upper cover, metal filtering core, sponge filter core, empty case member and center tracheae, metal filtering core and sponge filter core are arranged in sky lower cover by respective fitting seat, and empty upper cover docks with empty lower cover and closes up the closed cylindrical structure of formation one and by bindiny mechanism's stressed joint; Be respectively equipped with a circular hole in the central position of empty upper cover upper end end face and sponge filter core and metal filtering core, center tracheae to be extend in sky lower cover by above-mentioned circular hole successively and is positioned at above the oil bath bottom sky lower cover;
Sky covers and is provided with an air inlet cylinder, air inlet cylinder is provided with some inlet holes; In air inlet cylinder, be provided with closing in conically shaped upward, on the endless belt between conically shaped and center tracheae, equal angles is provided with some coarse filtration blades, and all coarse filtration blades are obliquely installed formation helix structure in the same direction; Connected by annular connecting plate between air inlet cylinder and conically shaped, the inlet hole on air inlet cylinder is positioned under annular connecting plate, and annular connecting plate is provided with dust-discharging mouth; By empty case member end face air inlet cylinder is pressed on sky while empty case member is connected with center tracheae and covers.
2. a kind of lawn machine small-sized air-cooling type according to claim 1, is characterized in that: described air inlet cylinder lower end surface is provided with some profile of tooth breach, and this profile of tooth breach forms described inlet hole.
3. a kind of lawn machine small-sized air-cooling type according to claim 2, is characterized in that: described empty upper cover and empty lower cover closed position are provided with seal ring; Between sponge filter core and center tracheae, be provided with sealing gasket, seal ring and sealing gasket are rubber material and make.
4. a kind of lawn machine small-sized air-cooling type according to claim 3, it is characterized in that: the Placement of described empty case member and center tracheae is: be diametrically provided with a horizontal stroke side in tracheae upper-end surface, center, horizontal stroke side is arranged the screw rod that is positioned at central gas tubular axis line, empty case member to be enclosed within screw rod and to be pressed on air inlet cylinder by empty case member end face by nut check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678943.XA CN104500303A (en) | 2014-11-24 | 2014-11-24 | Small air-cooled diesel engine for lawn mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678943.XA CN104500303A (en) | 2014-11-24 | 2014-11-24 | Small air-cooled diesel engine for lawn mower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500303A true CN104500303A (en) | 2015-04-08 |
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ID=52941741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410678943.XA Pending CN104500303A (en) | 2014-11-24 | 2014-11-24 | Small air-cooled diesel engine for lawn mower |
Country Status (1)
| Country | Link |
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| CN (1) | CN104500303A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109697721A (en) * | 2018-12-28 | 2019-04-30 | 石亚梅 | Protection type trench digging weeder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047417A1 (en) * | 1980-09-04 | 1982-03-17 | Wolf-Geräte GmbH | Petrol driven lawn mower |
| CN201635816U (en) * | 2010-02-26 | 2010-11-17 | 富士重工业株式会社 | General-purpose engine |
| CN202690271U (en) * | 2012-08-21 | 2013-01-23 | 陈恳 | Oil bath type air filter |
| CN203214200U (en) * | 2013-04-08 | 2013-09-25 | 程伟 | Oil bath type three-stage air filter for diesel engine |
| CN204299687U (en) * | 2014-11-24 | 2015-04-29 | 重庆翼虎动力机械有限公司 | Lawn machine diesel engine |
-
2014
- 2014-11-24 CN CN201410678943.XA patent/CN104500303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047417A1 (en) * | 1980-09-04 | 1982-03-17 | Wolf-Geräte GmbH | Petrol driven lawn mower |
| CN201635816U (en) * | 2010-02-26 | 2010-11-17 | 富士重工业株式会社 | General-purpose engine |
| CN202690271U (en) * | 2012-08-21 | 2013-01-23 | 陈恳 | Oil bath type air filter |
| CN203214200U (en) * | 2013-04-08 | 2013-09-25 | 程伟 | Oil bath type three-stage air filter for diesel engine |
| CN204299687U (en) * | 2014-11-24 | 2015-04-29 | 重庆翼虎动力机械有限公司 | Lawn machine diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109697721A (en) * | 2018-12-28 | 2019-04-30 | 石亚梅 | Protection type trench digging weeder |
| CN109697721B (en) * | 2018-12-28 | 2020-10-30 | 淮安逸之文企业管理有限公司 | Protection type ditching weeder |
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Application publication date: 20150408 |