CN108391498A - Grass trimmer with seat testing agency - Google Patents
Grass trimmer with seat testing agency Download PDFInfo
- Publication number
- CN108391498A CN108391498A CN201810422351.XA CN201810422351A CN108391498A CN 108391498 A CN108391498 A CN 108391498A CN 201810422351 A CN201810422351 A CN 201810422351A CN 108391498 A CN108391498 A CN 108391498A
- Authority
- CN
- China
- Prior art keywords
- seat
- weight
- weighing device
- chassis
- cutterhead
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/015—Cutting mechanisms not covered by another group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D67/00—Undercarriages or frames specially adapted for harvesters or mowers; Mechanisms for adjusting the frame; Platforms
- A01D67/04—Seats
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses the grass trimmers with seat testing agency, including chassis, seat and close switch are provided on the chassis, one end of the seat is rotatably connected on chassis, the other end bottom of the seat is provided with spring, the bottom for being located at the seat close to switch, further include a weighing device and computer, the weighing device moves together with the seat, there are one the weights of known weight for setting on the weighing device, the weighing device is sent to the computer by obtained weight is measured in real time, the weight measured in real time is compared the computer with the weight of the weight itself, if the weight ratio of the weight measured in real time and the weight itself is less than 0.5, when then the seat is not contacted with the close switch, also judge someone on the seat.
Description
Technical field
The present invention relates to a kind of grass trimmers.
Background technology
For the sake of security, seat testing agency, seat testing agency main function are fitted on grass trimmer at present
It exactly detects either with or without people on seat, safety standard regulation, as nobody on grass trimmer seat, engine is to be automatically closed
's.
Current seat testing agency mainly include one be arranged under seat close to switch, seat bottom is provided with
Spring supporting, if when nobody, single dead weight by seat itself can not make tables and chairs bottom be in contact with close to switch, when
On seat when someone, seat dead weight adds the weight of people, seat can be made to be in contact with close to switch, there are one to ask
Topic is exactly when grass trimmer is in jounce condition, even if someone on seat, sometimes as weightless state, causes to connect
Nearly switch can not be in contact with seat bottom.It at this time just will appear erroneous judgement.
As soon as a kind of scheme for being easy to mutually arrive is exactly to increase a delay function, when being initially separated close to switch with seat
Start timing, if within the time of restriction, be contacted again close to switch with seat, then engine does not stop, if beyond limit
The fixed time is contacted again with seat not yet close to switch, then engine stop moves.
This scheme has certain reasonability, because when jolting being of short duration weightlessness, the time that seat is left with people is affirmed
It is different.But still there is problem, the time of this setting is difficult fixed, and the time is fixed short, some weightlessness jolted can also be made
At erroneous judgement, time fixed length, if really people has left, car is also moving, this just will produce danger.
Invention content
For the deficiencies in the prior art, the present invention provides a kind of grass trimmer with seat testing agency, can be with
Erroneous judgement whether someone on seat is detected when avoiding jolting.
The present invention is achieved through the following technical solutions：Grass trimmer with seat testing agency, including chassis, it is described
It is provided with seat on chassis and close to switch, one end of the seat is rotatably connected on chassis, the other end bottom of the seat
Portion is provided with spring, and the bottom that the seat is located at close to switch, further includes a weighing device and computer, the title
Refitting is set as the seat moves together, and there are one the weight of known weight, the dresses of weighing for setting on the weighing device
Obtained weight will be measured in real time by, which setting, is sent to the computer, and the computer is by the weight measured in real time and the weight sheet
The weight of body is compared, if the weight ratio of the weight measured in real time and the weight itself is less than 0.5, the seat
When not contacted with the close switch, someone on the seat is also judged.Since weighing device moves together with seat, work as seat
When jolting, weighing device can also occur similarly to jolt, this jolts to react and weighs to obtain in weighing device
In the quality of weight, if the weight ratio of the weight measured in real time and the weight itself is less than 0.5, the weight of people adds
The weight of seat can not may all allow and arrive seat, therefore this mode close to switch contact, it is possible to prevente effectively from when jolting,
Bring to the erroneous judgement either with or without people on seat.
In above-mentioned technical proposal, it is preferred that on weighing device setting chassis, guarantor is provided on the outside of the weighing device
Shield, the weight are fixed on the top of the protective cover by bracing wire, and the length of the bracing wire meets when the bracing wire stretches
When, the weight is contacted with the weighing device.Weight is fallen when jolting in order to prevent when protective cover, and bracing wire is further
Limit the position of weight.
In above-mentioned technical proposal, it is preferred that further include cutterhead and engine, several columns, institute are provided on the cutterhead
It states and is provided with casing on chassis, the column is inserted into described sleeve pipe, and spring is arranged on the column, and the spring will be described
Cutterhead is close towards the chassis direction, further includes a cam, with the top of the cutterhead against described on the outside of the cam
Cam rotates under the driven by engine.In use, when engine rotation, band moving cam rotates, and realizes to cutterhead height
Step-less adjustment.In addition also in relation with getting up, our speed of driven by engine vehicle advances speed and cam rotation can be expert at
Into the lawn for trimming out specific shape in the process.By replacing cam of different shapes, thus it is possible to vary the shape on lawn.
In above-mentioned technical proposal, it is preferred that the engine is by driving the cam to rotate after a gearbox.Start
Generally quickly, if directly driving cam rotation not acceleration and deceleration, the height change on lawn will be too urgent for the rotating speed of machine, because
This is typically necessary by the way that band moving cam rotates again after gearbox, and in addition gearbox replaces different gears, can be not more
In the case of changing cam, the lawn of different gradient variation can be made.
In above-mentioned technical proposal, specifically, the engine drives two rear wheels by differential mechanism.
In above-mentioned technical proposal, it is preferred that the front end of the cutterhead is provided with several partition boards being arranged obliquely, it is described every
Card slot is formed between plate, width of the card slot from opening to bottom tapers into.When encountering, the grass on turf is more soft
The case where, it when trimming, possibly can not cut off, card slot can up carry the leaf that grassland is originally hung down, while when cutting, blade
It is just clamped on the bottom of card slot, blade is contributed to cut off soft blade of grass in this way.
The present invention has the advantages that：Since weighing device moves together with seat, when seat jolts
It waits, weighing device can also occur similarly to jolt, this, which jolts, can react in the quality for the weight that weighing device weighs,
If the weight ratio of the weight measured in real time and the weight itself is less than 0.5, the weight of people can plus the weight of seat
Can not can all allow and arrive seat, therefore this mode close to switch contact, it is possible to prevente effectively from when jolting, bring to seat
On either with or without people erroneous judgement.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the side view of seat portion.
Fig. 3 is the bottom substance schematic diagram of the present invention.
Fig. 4 is schematic diagrames of the Fig. 3 along A-A.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
Referring to Fig. 1-4, dotted portion is the part that cutterhead blocks in Fig. 3.
Grass trimmer with seat testing agency, including chassis 1, cutterhead 2 and engine 3 are provided with seat on the chassis 1
Chair 100 and close switch 101, one end of the seat 100 are rotatably connected on chassis 1, and the other end bottom of the seat 1 is set
It is equipped with spring 103, the bottom that the seat 100 is located at close to switch 101 further includes a weighing device 104 and is calculated
Machine（It is not shown in figure）, the weighing device moves together with the seat, weighing device described in specific the present embodiment
On 104 setting chassis 1,104 outside of the weighing device is provided with protective cover 1a, and weight 105 is fixed on described by bracing wire 106
The length at the top of protective cover 1a, the bracing wire 106 meets when the bracing wire 106 stretches, and the weight 105 is weighed with described
Device 104 contacts.Weight is fallen when jolting in order to prevent when protective cover, and bracing wire further limits the position of weight.
There are one the weights of known weight, the weighing device to be sent to obtained weight is measured in real time for setting on the weighing device
The weight measured in real time is compared with the weight of the weight itself for the computer, the computer, if surveyed in real time
The weight ratio of the weight of amount and the weight itself is less than 0.5, then when the seat is not contacted with the close switch, also sentences
Someone on the disconnected seat.
It is provided with 3 root posts 21 on the cutterhead 2, casing 11 is provided on the chassis 1, the column 21 is inserted into described
In casing 11, spring 4 is arranged on the column 21, the spring 4 is close towards 1 direction of the chassis by the cutterhead 1, also
Including a cam 5, the top of 5 outside of the cam and the cutterhead 2 is against the cam 5 is under the drive of the engine 3
Rotation.The engine 3 is by driving the cam 5 to rotate after a gearbox 7.The engine 3 is driven by differential mechanism 8
Two trailing wheels 6 rotate.Cover 9 there are one being also set up on chassis, cover covers cam and column.
The front end of the cutterhead 2 is provided with several partition boards 22 being arranged obliquely, and card slot 23 is formed between the partition board 22,
Width of the card slot 23 from opening to bottom tapers into.
Vehicle when driving, since weighing device moves together with seat, when seat jolts, weighing device
It can occur similarly to jolt, this, which jolts, can react in the quality for the weight that weighing device weighs, if measured in real time
Weight and the weight ratio of the weight itself be less than 0.5, then the weight of people can not may all allow and connect plus the weight of seat
Nearly switch contact is to seat, therefore this mode, it is possible to prevente effectively from when jolting, bring on seat either with or without people's
Erroneous judgement.
It when engine rotation, is rotated by differential mechanism band motor vehicle rear wheel, while being rotated by gearbox band moving cam, it is real
Now to the step-less adjustment of cutterhead height.In addition driven by engine vehicle advance speed and cam rotation speed also in relation with rise
Come, we can trim out the lawn of specific shape during advancing.By replacing cam of different shapes, thus it is possible to vary grass
The shape on level ground.
Generally quickly, if directly driving cam rotation not acceleration and deceleration, the height on lawn becomes the rotating speed of engine
Change will be too urgent, therefore is typically necessary by the way that band moving cam rotates again after gearbox, and in addition gearbox replaces different shelves
Position can make the lawn of different gradient variation in the case where being changed without cam.
When encountering the more soft situation trimming of the grass on turf, possibly it can not cut off, card slot can be by grassland sheet
The leaf to hang down up carries, while when cutting, and blade is just clamped on the bottom of card slot, contributes to blade to cut off jewelry, expensive clothing and other valuables in this way
Blade of grass.
Claims (5)
1. having the grass trimmer of seat testing agency, including chassis, seat and close switch, the seat are provided on the chassis
One end of chair is rotatably connected on chassis, and the other end bottom of the seat is provided with spring, and the close switch is located at described
The bottom of seat, it is characterised in that：Further include a weighing device and computer, the weighing device with the seat together
It moves, there are one the weights of known weight, the weighing device will measure obtained weight in real time for setting on the weighing device
It is sent to the computer, the weight measured in real time is compared the computer with the weight of the weight itself, if
The weight ratio of the weight and the weight itself that measure in real time is less than 0.5, then the seat is not contacted with described close to switch
When, also judge someone on the seat.
2. the grass trimmer according to claim 1 with seat testing agency, it is characterised in that：The weighing device setting
On chassis, it is provided with protective cover on the outside of the weighing device, the weight is fixed on the top of the protective cover, institute by bracing wire
The length for stating bracing wire meets when the bracing wire stretches, and the weight is contacted with the weighing device.
3. the grass trimmer according to claim 1 with seat testing agency, it is characterised in that：Further include cutterhead and starting
Machine is provided with several columns on the cutterhead, casing is provided on the chassis, the column is inserted into described sleeve pipe, described
Spring is arranged on column, the spring is close towards the chassis direction by the cutterhead, further includes a cam, described convex
Wheel outside and the top of the cutterhead are against the engine is by driving the cam to rotate after a gearbox.
4. cutterhead height stepless regulating mechanism according to claim 3, it is characterised in that：The engine passes through differential mechanism
Drive two rear wheels.
5. cutterhead height stepless regulating mechanism according to claim 3, it is characterised in that：The front end of the cutterhead is provided with
Several partition boards being arranged obliquely form card slot between the partition board, and width of the card slot from opening to bottom gradually becomes
It is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422351.XA CN108391498B (en) | 2018-05-04 | 2018-05-04 | Lawn mower with seat detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810422351.XA CN108391498B (en) | 2018-05-04 | 2018-05-04 | Lawn mower with seat detection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108391498A true CN108391498A (en) | 2018-08-14 |
| CN108391498B CN108391498B (en) | 2020-10-20 |
Family
ID=63101366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810422351.XA Active CN108391498B (en) | 2018-05-04 | 2018-05-04 | Lawn mower with seat detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108391498B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733532A (en) * | 2004-08-10 | 2006-02-15 | 刘焱 | Automobile occupant passive safety integrated control device |
| CN103660943A (en) * | 2012-08-30 | 2014-03-26 | 扬州市高升机械有限公司 | Engineering machinery seat with dislocation switch device |
| CN104322201A (en) * | 2014-10-16 | 2015-02-04 | 安徽农业大学 | Portable grass remover |
| CN204392859U (en) * | 2015-01-09 | 2015-06-17 | 河套学院 | A kind of cutterhead for lawn mower |
| CN208523228U (en) * | 2018-05-04 | 2019-02-22 | 浙江中坚科技股份有限公司 | Grass trimmer with seat testing agency |
-
2018
- 2018-05-04 CN CN201810422351.XA patent/CN108391498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1733532A (en) * | 2004-08-10 | 2006-02-15 | 刘焱 | Automobile occupant passive safety integrated control device |
| CN103660943A (en) * | 2012-08-30 | 2014-03-26 | 扬州市高升机械有限公司 | Engineering machinery seat with dislocation switch device |
| CN104322201A (en) * | 2014-10-16 | 2015-02-04 | 安徽农业大学 | Portable grass remover |
| CN204392859U (en) * | 2015-01-09 | 2015-06-17 | 河套学院 | A kind of cutterhead for lawn mower |
| CN208523228U (en) * | 2018-05-04 | 2019-02-22 | 浙江中坚科技股份有限公司 | Grass trimmer with seat testing agency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108391498B (en) | 2020-10-20 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant |