CN105003496B - Special vehicle Antistatic alarm - Google Patents
Special vehicle Antistatic alarm Download PDFInfo
- Publication number
- CN105003496B CN105003496B CN201510493052.1A CN201510493052A CN105003496B CN 105003496 B CN105003496 B CN 105003496B CN 201510493052 A CN201510493052 A CN 201510493052A CN 105003496 B CN105003496 B CN 105003496B
- Authority
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- China
- Prior art keywords
- valve
- oil cylinder
- hydraulic fluid
- special vehicle
- fluid port
- 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.)
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- 238000001514 detection method Methods 0.000 claims abstract description 22
- 239000003921 oil Substances 0.000 claims description 76
- 239000012530 fluid Substances 0.000 claims description 59
- 210000000078 claw Anatomy 0.000 claims description 36
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005672 electromagnetic field Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
- F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
- F16P3/147—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using electro-magnetic technology, e.g. tags or radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
Abstract
The invention discloses a kind of special vehicle Antistatic alarm, belong to warning device technical field, the special vehicle Antistatic alarm includes power source, the acoustic-optic alarm being arranged on special vehicle, connected with the power source and by the telescopic oil cylinder of the power source drive, it is arranged on the magnetic field intensity detection means in the piston rod free end of the telescopic oil cylinder, the controller for electrically connecting and controlling the power source to start or close with the power source, the acoustic-optic alarm and the magnetic field intensity detection means are electrically connected with the controller respectively.By on special vehicle set power source with drive telescopic oil cylinder activity, and then drive magnetic field intensity detection means to stretch out or withdraw with the electromagnetic field intensity of detection operation areas adjacent, the magnetic field intensity signal detected feeds back to controller, when magnetic field intensity reaches threshold value, controller control acoustic-optic alarm is alarmed, to remind the position of staff danger zone, the security of electric operating is improved.
Description
Technical field
The present invention relates to warning device technical field, more particularly to a kind of special vehicle Antistatic alarm.
Background technology
Using large special vehicle equipment(Such as crane, pump truck, excavator)Carry out operation in line protection area
When, operating personnel and commanding tend to ignore the safe distance between transmission line of electricity so that equipment and wire it
Between spacing when surmounting safe distance, produce electric discharge phenomena, so as to cause the power grid accidents such as tower that break, fall, set construction machinery
It is standby to damage, or even there is personal injury.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of special vehicle Antistatic alarm, skill
Art scheme is as follows:
The embodiments of the invention provide a kind of special vehicle Antistatic alarm, the special vehicle Antistatic alarm bag
Power source, acoustic-optic alarm on special vehicle are included, is connected with the power source and by the power source drive
Telescopic oil cylinder, is arranged on the magnetic field intensity detection means in the piston rod free end of the telescopic oil cylinder, with power source electricity
The controller for connecting and controlling the power source to start or close, the acoustic-optic alarm and the magnetic field intensity detection means
Electrically connected respectively with the controller.
Further, the special vehicle Antistatic alarm also includes three-position four-way electromagnetic directional valve and the first electromagnetism
Switch valve, the first hydraulic fluid port of the three-position four-way electromagnetic directional valve is connected with the oil-out of the power source, the 3-position 4-way
Second hydraulic fluid port of solenoid directional control valve is connected with the oil inlet of first electromagnetic switch valve, first electromagnetic switch valve it is fuel-displaced
Mouthful connected with the rod chamber of the telescopic oil cylinder, the of the rodless cavity of the telescopic oil cylinder and the three-position four-way electromagnetic directional valve
Three hydraulic fluid ports are connected, and the 4th hydraulic fluid port of the three-position four-way electromagnetic directional valve is connected with the oil return opening of the power source.
Further, the special vehicle Antistatic alarm also includes the piston rod freedom for being arranged on the telescopic oil cylinder
Claw oil cylinder, the second electromagnetic switch valve and the claw by the claw hydraulic oil cylinder driving at end, second electromagnetic switch valve
Oil inlet is connected with the second hydraulic fluid port of the three-position four-way electromagnetic directional valve, the oil-out of second electromagnetic switch valve with it is described
The rod chamber connection of claw oil cylinder, the rodless cavity of the claw oil cylinder connects with the 3rd hydraulic fluid port of the three-position four-way electromagnetic directional valve
It is logical.
Further, in addition to square box frame plate and balladeur train, the main body of the claw oil cylinder and the work of the telescopic oil cylinder
Stopper rod is relatively fixed on the two side of square box frame plate, and the side of the stationary jaw oil cylinder of the square box frame plate is additionally provided with
Fixed plate, the bearing of trend of the fixed plate is parallel with the bearing of trend of the piston rod of the claw oil cylinder, and the claw includes
It is hinged in fixed plate and is oppositely arranged in the middle part of left mechanical arm and right mechanical arm, the left mechanical arm and the right mechanical arm,
One end of the left mechanical arm and the right mechanical arm is slidably mounted in the balladeur train, the middle part of the balladeur train and institute
The piston rod free end for stating claw oil cylinder is fixedly connected.
Further, the magnetic field intensity detection means is fixed on the lateral wall of the square box frame plate, and the magnetic
Field intensity detection means is set close to the piston rod free end of the claw oil cylinder.
Further, in addition to the first balanced valve and the second balanced valve, first balanced valve and the second balanced valve are
Maintained a normally open during one state, first balanced valve and the second balanced valve throttle supercharging in the second state, first balance
First hydraulic fluid port of valve is connected with the second hydraulic fluid port of the three-position four-way electromagnetic directional valve, the second hydraulic fluid port of first balanced valve with
The oil inlet connection of first electromagnetic switch valve, the control port of first balanced valve and the first of second balanced valve
Hydraulic fluid port is connected, and the rodless cavity of the second hydraulic fluid port of second balanced valve respectively with telescopic oil cylinder, claw oil cylinder is connected, and described second
The control port of balanced valve is connected with the first hydraulic fluid port of first balanced valve.
Further, in addition to the first traveller, the first check valve, the second traveller and the second check valve, described first slide
One end of post is extended in the control port of first balanced valve, the other end of first traveller and the one of the first check valve
End is tightly connected, and the other end of first check valve is connected with the first hydraulic fluid port of the second balanced valve, and the one of second traveller
End is extended in the control port of second balanced valve, and the other end of second traveller and one end of the second check valve are sealed
Connection, the other end of second check valve is connected with the first hydraulic fluid port of the first balanced valve.
Further, in addition to be arranged between the first hydraulic fluid port of first check valve and second balanced valve
One filter, and the second filter being arranged between the first hydraulic fluid port of second check valve and first balanced valve.
Further, it is additionally provided with the special vehicle for showing current magnetic field intensity and special vehicle and high pressure
The display screen of magnetic field real-time range, the display screen is electrically connected with the controller.
The beneficial effect of technical scheme provided in an embodiment of the present invention is:
By setting power source on special vehicle to drive telescopic oil cylinder activity, and then drive magnetic field intensity detection means
Stretch out or withdraw with the electromagnetic field intensity of detection operation areas adjacent, the magnetic field intensity signal detected feeds back to controller, when
When magnetic field intensity reaches threshold value, controller control acoustic-optic alarm is alarmed, to remind the position of staff danger zone
Put, improve the security of electric operating.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the hydraulic schematic diagram of special vehicle Antistatic alarm provided in an embodiment of the present invention;
Fig. 2 is the circuit connection diagram of special vehicle Antistatic alarm provided in an embodiment of the present invention;
Fig. 3 is the partial device structures figure of special vehicle Antistatic alarm provided in an embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment
As shown in Fig. 1 ~ 3, the embodiments of the invention provide a kind of special vehicle Antistatic alarm, the special vehicle is closely electric
Warning device includes power source 1, the acoustic-optic alarm 2 being arranged on special vehicle, is connected with power source 1 and by power source 1
The telescopic oil cylinder 3 of driving, is arranged on the magnetic field intensity detection means 4 in the piston rod free end of telescopic oil cylinder 3, with power source 1
Electrical connection and control power source 1 controller 5 that starts or close, acoustic-optic alarm 2 and magnetic field intensity detection means 4 respectively with
Controller 5 is electrically connected.
Specifically, power source 1 can be hydraulic oil container and oil pump, and oil pump is controlled to open with oil transportation, acousto-optic report by controller 5
The structure of alarm device 2 and magnetic field intensity detection means 4 is known for those skilled in the art, will not be repeated here, special vehicle is leaned on
Behind nearly electric operating place, power source 1 is controlled to open to drive telescopic oil cylinder 3 to stretch out by controller 5, the piston rod of telescopic oil cylinder 3
The magnetic field intensity detection means 4 of free end starts the magnetic field intensity of real-time detection operation areas adjacent, and by magnetic field intensity signal
Controller 5 is fed back to, analysis contrast is carried out by controller 5, when magnetic field intensity reaches threshold value, the control sound and light alarm of controller 5
Device 2 sends alarm.
Further, the special vehicle Antistatic alarm also includes the electromagnetism of three-position four-way electromagnetic directional valve 6 and first
Switch valve 7, the first hydraulic fluid port 6a of three-position four-way electromagnetic directional valve 6 is connected with the oil-out 1a of power source 1, and 3-position 4-way electromagnetism is changed
Connected to the second hydraulic fluid port 6b of valve 6 with the oil inlet 7a of the first electromagnetic switch valve 7, the oil-out 7b of the first electromagnetic switch valve 7 with
The rod chamber 3a connections of telescopic oil cylinder 3, the rodless cavity 3b of telescopic oil cylinder 3 and the 3rd hydraulic fluid port 6c of three-position four-way electromagnetic directional valve 6
Connection, the 4th hydraulic fluid port 6d of three-position four-way electromagnetic directional valve 6 is connected with the oil return opening 1b of power source 1.
Specifically, in the present embodiment, the hydraulic fluid port order naming rule of each operating valve is from left and right, from the bottom up along pointer
Arrangement, is referred to shown in accompanying drawing.Wherein, three-position four-way electromagnetic directional valve 6 is in middle position state, and the first hydraulic fluid port 6a is closed, the second oil
Mouth 6b, the 3rd hydraulic fluid port 6c and the 4th hydraulic fluid port 6d are interconnected, during left position state, the second hydraulic fluid port 6b and the 4th hydraulic fluid port 6d connections, the
One hydraulic fluid port 6a and the 3rd hydraulic fluid port 6c connections, during right position state, the first hydraulic fluid port 6a and the second hydraulic fluid port 6b connections, the 3rd hydraulic fluid port 6c and the
Four hydraulic fluid port 6d are connected.By controlling being turned on and off for the first electromagnetic switch valve 7, the start and stop of telescopic oil cylinder 3 can be controlled to work.
First electromagnetic switch valve 7 is electrically connected with controller 5, is turned in first state, is closed in the second state.
Further, the special vehicle Antistatic alarm also includes the piston rod free end for being arranged on telescopic oil cylinder 3
Claw oil cylinder 8, the second electromagnetic switch valve 9 and the claw 10 driven by claw oil cylinder 8, the oil inlet of the second electromagnetic switch valve 9
9a is connected with the second hydraulic fluid port 6b of three-position four-way electromagnetic directional valve 6,9b oil-outs and the claw oil cylinder 8 of the second electromagnetic switch valve 9
Rod chamber 8a connections, the rodless cavity 8b of claw oil cylinder 8 connects with the 3rd hydraulic fluid port 6c of three-position four-way electromagnetic directional valve 6.
Specifically, the crawl and release action of the driving of claw oil cylinder 8 claw 10, are made with controlling claw 10 to capture some electric power
Equipment during industry carries out less important work, wherein, the second electromagnetic switch valve 9 is electrically connected with controller 5, is turned in first state,
Closed in the second state.
Further, in addition to square box frame plate 11 and balladeur train 12, the main body of claw oil cylinder 8 and the piston of telescopic oil cylinder 3
Bar is relatively fixed on the two side of square box frame plate 11, and the side of the stationary jaw oil cylinder 8 of square box frame plate 11 is additionally provided with
Fixed plate 13, the bearing of trend of fixed plate 13 is parallel with the bearing of trend of the piston rod of claw oil cylinder 8, and claw 10 includes left machinery
It is hinged in fixed plate 13 and is oppositely arranged in the middle part of arm 10a and right mechanical arm 10b, left mechanical arm 10a and right mechanical arm 10b,
Left mechanical arm 10a and right mechanical arm 10b one end are slidably mounted in balladeur train 12, middle part and the claw oil cylinder of balladeur train 12
8 piston rod free end is fixedly connected.
Further, in wherein a kind of implementation, magnetic field intensity detection means 4 is fixed on the outer of square box frame plate 11
On the wall of side, and magnetic field intensity detection means 4 is set close to the piston rod free end of claw oil cylinder 8.
Further, in addition to the first balanced valve 14 and the second balanced valve 15, the first balanced valve 14 and the second balanced valve 15
Maintained a normally open in first state, the first balanced valve 14 and the second balanced valve 15 throttle supercharging, the first balance in the second state
First hydraulic fluid port 14a of valve 14 is connected with the second hydraulic fluid port 6b of three-position four-way electromagnetic directional valve 6, the second hydraulic fluid port of the first balanced valve 14
14b is connected with the oil inlet 7a of the first electromagnetic switch valve 7, the control port 14c of the first balanced valve 14 and the second balanced valve 15
First hydraulic fluid port 15a is connected, and the second hydraulic fluid port 15b of the second balanced valve 15 connects with the rodless cavity of telescopic oil cylinder 3, claw oil cylinder 8 respectively
Logical, the control port 15c of the second balanced valve 15 is connected with the first hydraulic fluid port 14a of the first balanced valve 14.By setting two balances
Valve, when two oil cylinder oil inlet end oil pressure are excessive, section hydraulic oil can flow to two balanced valves, and control balanced valve switching state is opened
Begin to throttle, the pressure at counterbalancing oil cylinder two ends.
Further, in addition to the first traveller 16, the first check valve 17, the second traveller 18 and the second check valve 19,
One end of one traveller 16 is extended in the control port 14c of the first balanced valve 14, the other end of the first traveller 16 and first unidirectional
One end of valve 17 is tightly connected, and 17 other ends of the first check valve are connected with the first hydraulic fluid port 15a of the second balanced valve 15, and second slides
One end of post 18 is extended in the control port of the second balanced valve 15, and the one of the other end of the second traveller 18 and the second check valve 19
End is tightly connected, and the other end of the second check valve 19 is connected with the first hydraulic fluid port 14a of the first balanced valve 14.
Specifically, as shown in figure 1, except using hydraulic oil at the control port of the first balanced valve 14 and the second balanced valve 15
Outside drive control, it is also respectively provided with the first traveller 16 and the second traveller 18 carries out process auxiliary drive, it is direct by solid traveller
The valve element of two balanced valves is promoted, the transmission of power is accurate much sooner.
Further, in addition to be arranged between the first check valve 17 and the first hydraulic fluid port 15a of the second balanced valve 15
One filter 20, and the second filter being arranged between the second check valve 19 and the first hydraulic fluid port 14a of the first balanced valve 14
21.Specifically, higher is required to the clean-up performance of hydraulic oil at the control port of two balanced valves, when hydraulic pressure well cuts are excessive
The control accuracy of two balanced valves is influenceed, the first filter 20 and the second filter 21 can filter hydraulic oil impurity.
Further, in wherein a kind of implementation, it is additionally provided with special vehicle for showing current magnetic field intensity
And the display screen 22 of special vehicle and high voltage magnetic field real-time range, display screen 22 electrically connects with controller 5.
A kind of special vehicle Antistatic alarm provided in an embodiment of the present invention, by setting power source on special vehicle
To drive telescopic oil cylinder activity, and then magnetic field intensity detection means is driven to stretch out or withdraw with the electromagnetism of detection operation areas adjacent
Field intensity, the magnetic field intensity signal detected feeds back to controller, when magnetic field intensity reaches threshold value, controller control acousto-optic report
Alarm device is alarmed, and to remind the position of staff danger zone, improves the security of electric operating.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of special vehicle Antistatic alarm, it is characterised in that the special vehicle Antistatic alarm includes being arranged on
Power source, acoustic-optic alarm on special vehicle, are connected with the power source and by the telescopic oil cylinder of the power source drive,
The magnetic field intensity detection means in the piston rod free end of the telescopic oil cylinder is arranged on, electrically connects and controls with the power source
The controller that the power source starts or closed, the acoustic-optic alarm and the magnetic field intensity detection means respectively with it is described
Controller is electrically connected;
The special vehicle Antistatic alarm also includes three-position four-way electromagnetic directional valve and the first electromagnetic switch valve, described three
First hydraulic fluid port of position four-way electromagnetic reversing valve is connected with the oil-out of the power source, and the of the three-position four-way electromagnetic directional valve
Two hydraulic fluid ports are connected with the oil inlet of first electromagnetic switch valve, the oil-out of first electromagnetic switch valve and the flexible oil
The rod chamber connection of cylinder, the rodless cavity of the telescopic oil cylinder is connected with the 3rd hydraulic fluid port of the three-position four-way electromagnetic directional valve, institute
The 4th hydraulic fluid port for stating three-position four-way electromagnetic directional valve is connected with the oil return opening of the power source.
2. special vehicle Antistatic alarm according to claim 1, it is characterised in that the special vehicle alarming in short range of electric power
Device also includes being arranged on the claw oil cylinder of the piston rod free end of the telescopic oil cylinder, the second electromagnetic switch valve and by described
The claw of claw hydraulic oil cylinder driving, the oil inlet of second electromagnetic switch valve and the second oil of the three-position four-way electromagnetic directional valve
Mouth connection, the oil-out of second electromagnetic switch valve is connected with the rod chamber of the claw oil cylinder, the nothing of the claw oil cylinder
Rod cavity is connected with the 3rd hydraulic fluid port of the three-position four-way electromagnetic directional valve.
3. special vehicle Antistatic alarm according to claim 2, it is characterised in that also including square box frame plate and cunning
Frame, the main body of the claw oil cylinder and the piston rod of the telescopic oil cylinder are relatively fixed on the two side of square box frame plate, institute
The side for stating the stationary jaw oil cylinder of square box frame plate is additionally provided with fixed plate, the bearing of trend of the fixed plate and the claw
The bearing of trend of the piston rod of oil cylinder is parallel, and the claw includes left mechanical arm and right mechanical arm, the left mechanical arm and described
It is hinged in fixed plate and is oppositely arranged in the middle part of right mechanical arm, one end of the left mechanical arm and the right mechanical arm can be slided
It is arranged on dynamicly in the balladeur train, the middle part of the balladeur train is fixedly connected with the piston rod free end of the claw oil cylinder.
4. special vehicle Antistatic alarm according to claim 3, it is characterised in that the magnetic field intensity detection means
On the lateral wall for being fixed on the square box frame plate, and the magnetic field intensity detection means is close to the piston rod of the claw oil cylinder
Free end is set.
5. special vehicle Antistatic alarm according to claim 2, it is characterised in that also including the first balanced valve and
Two balanced valves, first balanced valve and the second balanced valve are maintained a normally open in first state, first balanced valve and second
Balanced valve throttles supercharging in the second state, the first hydraulic fluid port and the three-position four-way electromagnetic directional valve of first balanced valve
Second hydraulic fluid port is connected, and the second hydraulic fluid port of first balanced valve connects with the oil inlet of first electromagnetic switch valve, and described the
The control port of one balanced valve is connected with the first hydraulic fluid port of second balanced valve, the second hydraulic fluid port difference of second balanced valve
Connected with the rodless cavity of telescopic oil cylinder, claw oil cylinder, the of the control port of second balanced valve and first balanced valve
One hydraulic fluid port is connected.
6. special vehicle Antistatic alarm according to claim 5, it is characterised in that also including the first traveller, first
Check valve, the second traveller and the second check valve, one end of first traveller extend to the control oil of first balanced valve
Intraoral, one end of the other end and the first check valve of first traveller is tightly connected, the other end of first check valve with
The first hydraulic fluid port connection of second balanced valve, one end of second traveller is extended in the control port of second balanced valve,
One end of the other end and the second check valve of second traveller is tightly connected, the other end of second check valve and first flat
The first hydraulic fluid port connection of weighing apparatus valve.
7. special vehicle Antistatic alarm according to claim 6, it is characterised in that also including being arranged on described first
The first filter between first hydraulic fluid port of check valve and second balanced valve, and it is arranged on second check valve and institute
State the second filter between the first hydraulic fluid port of the first balanced valve.
8. the special vehicle Antistatic alarm according to any one of claim 1 ~ 7, it is characterised in that the special vehicle
In be additionally provided with for showing current magnetic field intensity and special vehicle and the display screen of high voltage magnetic field real-time range, the display
Screen is electrically connected with the controller.
Priority Applications (1)
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CN201510493052.1A CN105003496B (en) | 2015-08-13 | 2015-08-13 | Special vehicle Antistatic alarm |
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CN201510493052.1A CN105003496B (en) | 2015-08-13 | 2015-08-13 | Special vehicle Antistatic alarm |
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CN105003496A CN105003496A (en) | 2015-10-28 |
CN105003496B true CN105003496B (en) | 2017-09-15 |
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CN201510493052.1A Active CN105003496B (en) | 2015-08-13 | 2015-08-13 | Special vehicle Antistatic alarm |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4233441A1 (en) * | 1992-07-21 | 1994-01-27 | Zikun Fahrzeugbau Gmbh | Auxiliary device for vehicle with articulated parts or tools for working on electric power lines - has sensor for detecting metal objects or electromagnetic and/or electrostatic fields and evaluation unit connected to alarm and/or actuator |
US5592092A (en) * | 1994-10-28 | 1997-01-07 | Gas Research Institute | Pipe proximity warning device for accidental damage prevention mounted on the bucket of a backhoe |
CN201172602Y (en) * | 2008-03-26 | 2008-12-31 | 江苏省电力公司南京供电公司 | Crane near-electricity alarming safety installation |
CN103159137A (en) * | 2013-03-13 | 2013-06-19 | 江苏创导电气有限公司 | Electricity-closing alarm device of crane |
CN203403465U (en) * | 2013-07-06 | 2014-01-22 | 徐州市若愚机械科技发展有限公司 | Safety locking device of loading machine |
CN204878135U (en) * | 2015-08-13 | 2015-12-16 | 国家电网公司 | Nearly electric alarm device of special type vehicle |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9347763B2 (en) * | 2013-04-12 | 2016-05-24 | Komatsu Ltd. | Hydraulic cylinder stroke operation diagnosis assisting device and hydraulic cylinder stroke operation diagnosis assisting method |
-
2015
- 2015-08-13 CN CN201510493052.1A patent/CN105003496B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4233441A1 (en) * | 1992-07-21 | 1994-01-27 | Zikun Fahrzeugbau Gmbh | Auxiliary device for vehicle with articulated parts or tools for working on electric power lines - has sensor for detecting metal objects or electromagnetic and/or electrostatic fields and evaluation unit connected to alarm and/or actuator |
US5592092A (en) * | 1994-10-28 | 1997-01-07 | Gas Research Institute | Pipe proximity warning device for accidental damage prevention mounted on the bucket of a backhoe |
CN201172602Y (en) * | 2008-03-26 | 2008-12-31 | 江苏省电力公司南京供电公司 | Crane near-electricity alarming safety installation |
CN103159137A (en) * | 2013-03-13 | 2013-06-19 | 江苏创导电气有限公司 | Electricity-closing alarm device of crane |
CN203403465U (en) * | 2013-07-06 | 2014-01-22 | 徐州市若愚机械科技发展有限公司 | Safety locking device of loading machine |
CN204878135U (en) * | 2015-08-13 | 2015-12-16 | 国家电网公司 | Nearly electric alarm device of special type vehicle |
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