CN207832165U - A kind of Multifunctional range finder - Google Patents

A kind of Multifunctional range finder Download PDF

Info

Publication number
CN207832165U
CN207832165U CN201721267206.6U CN201721267206U CN207832165U CN 207832165 U CN207832165 U CN 207832165U CN 201721267206 U CN201721267206 U CN 201721267206U CN 207832165 U CN207832165 U CN 207832165U
Authority
CN
China
Prior art keywords
control chip
distance measuring
idler wheel
drawstring
measuring structure
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.)
Expired - Fee Related
Application number
CN201721267206.6U
Other languages
Chinese (zh)
Inventor
张淑东
王震东
胡玉清
倪晓沛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINHUA YONGAN ELECTRICAL EQUIPMENT ELECTRONIC MANUFACTURING Co Ltd
Original Assignee
JINHUA YONGAN ELECTRICAL EQUIPMENT ELECTRONIC MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JINHUA YONGAN ELECTRICAL EQUIPMENT ELECTRONIC MANUFACTURING Co Ltd filed Critical JINHUA YONGAN ELECTRICAL EQUIPMENT ELECTRONIC MANUFACTURING Co Ltd
Priority to CN201721267206.6U priority Critical patent/CN207832165U/en
Application granted granted Critical
Publication of CN207832165U publication Critical patent/CN207832165U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model is related to ranging technical field of tools, disclose a kind of Multifunctional range finder, including shell, button, drawstring distance measuring structure, idler wheel distance measuring structure, ultrasonic ranging structure, display screen and control chip;Shell wraps up drawstring and control chip, and button and display screen are set to case surface;Control chip connect with drawstring distance measuring structure and receives its data, and control chip connect with idler wheel distance measuring structure and receives its data;Control chip is connect with display screen and control display screen work;Button is connect with control chip, and ultrasonic ranging structure is connect with control chip.Drawstring distance measuring structure and idler wheel distance measuring structure all measure the distance of process by grating sensor, measure accurately, interference is few, easy to implement.Ultrasonic measurement mode can measure the ground of uneven, save time and efforts.The a variety of distance measuring methods of the utility model set, improve the practicability of rangefinder, are suitable for a variety of measurement occasions, and easy to operate, accuracy is high.

Description

A kind of Multifunctional range finder
Technical field
The utility model is related to ranging technical field of tools, more particularly to a kind of design of Multifunctional range finder.
Background technology
Drawstring, laser and idler wheel are all common ranging tools, can be applied to construction, indoor decoration, roading Equal fields.In use, drawstring and idler wheel are required for field survey in reality, certain landforms for being difficult to measure, such as mountain are encountered Ground and irrigation canals and ditches, obtained error of measured data are very big.And the measurement data for wanting to obtain eminence also needs to user and climbs to height Place measures, not only time-consuming and laborious also extremely dangerous, and finally obtained result precision is not also high.Ultrasonic wave in the prior art Distance measuring method is easy to use, can fast and easily measure certain dangerously steep landforms, but is susceptible to barrier interference, short distance Error is very big when ranging.The characteristics of comprehensive several distance measuring methods, can design a kind of rangefinder suitable for various occasions.
Utility model content
The utility model for inconvenient in some cases in the prior art, measurement error it is big the shortcomings that, provide A kind of Multifunctional range finder.
The present invention solves the problems, such as that idler wheel is utilized in a kind of no rangefinder suitable for various occasions, present design Short distance measurement is carried out with drawstring, two kinds of measurement methods complement each other, and effectively increase the precision of ranging.By drawstring, idler wheel In ultrasonic ranging mode set a to rangefinder, the practicability of rangefinder is improved, applicable surface is expanded.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
A kind of Multifunctional range finder, including shell, button, drawstring distance measuring structure, idler wheel distance measuring structure, ultrasonic ranging knot Structure, display screen and control chip;Shell wraps up drawstring and control chip, and button and display screen are set to case surface;Control core Piece connect with drawstring distance measuring structure and receives its data, and control chip connect with idler wheel distance measuring structure and receives its data;Control Chip is connect with display screen and control display screen work;Button is connect with control chip, ultrasonic ranging structure and control chip Connection.Control chip can control display screen the data measured are shown, additionally it is possible to store historical data greatlys improve Measurement efficiency.User can be interacted by button and control chip, be modified measurement pattern and measurement data It reads, store and revises.
Preferably, control chip includes acquisition module, driver module, logical operation module and memory module, patrol Volume computing module is connect with acquisition module, driver module and memory module respectively, acquisition module respectively with drawstring ranging knot Structure connects with idler wheel distance measuring structure and receives the data of the two, and logical operation module receives the signal of acquisition module data and button And to driver module transmission data, logical operation module and memory module transceiving data, driver module and display screen It connects and display screen is driven to work, memory module stores data.Logical operation module is calculated according to the data that acquisition module obtains The distance of measurement passes through driver module control display screen display data.If receiving corresponding push button signalling, logic fortune It calculates module to store data into memory module, corresponding data can also be read from memory module, or delete former data.
It is surveyed preferably, drawstring distance measuring structure includes drawstring, bull wheel, bull wheel grating sensor, limited block and drawstring Away from structural defence shell, on bull wheel, the other end is connect drawstring one ends wound with limited block;The detection of bull wheel grating sensor is drawn Rope sheave rotation distance and rotation direction simultaneously transfer data to control chip, and drawstring distance measuring structure protective shell blocks bull wheel grating Sensor and bull wheel;Shell is equipped with through-hole, and drawstring is passed through from through-hole.When drawstring stretches, when bull wheel rotates thereon Bull wheel sectored light gate hole rotates, and reception pipe receives optical signal, and control chip can judge the rotation distance of wheel according to signal And rotation direction.
Preferably, bull wheel grating sensor includes luminous tube and reception pipe, luminous tube and reception pipe are oppositely arranged on On drawstring distance measuring structure protective shell inner wall, bull wheel is set between the two and surface is vertical with the light that luminous tube is sent out;Drawstring Wheel surface is uniformly provided with several bull wheel sectored light gate hole;Include two receiving units in reception pipe, between two receiving units Distance it is identical as the distance between bull wheel sectored light gate hole adjacent on bull wheel;Reception pipe is electrically connected with control chip. When the bull wheel rotation equipped with grating, the one of unit of reception pipe receives signal, another does not receive signal, the two Change procedure has sequential, so as to judge the rotation distance and rotation direction of wheel simultaneously.
Preferably, idler wheel distance measuring structure includes idler wheel, idler wheel grating sensor, indicator light and the protection of idler wheel distance measuring structure Shell, idler wheel grating sensor detection idler wheel rotation distance and rotation direction simultaneously transfer data to control chip, idler wheel ranging knot Structure protective shell covers idler wheel;Indicator light is connect with control chip.Grating hole rotation when idler wheel rotates thereon, reception pipe receive light Signal, control chip can judge the rotation distance and rotation direction of wheel according to signal.Idler wheel distance measuring structure protective shell can Accurate idler wheel grating sensor is protected, is prolonged the service life.
Preferably, idler wheel grating sensor includes luminous tube and reception pipe, luminous tube and reception pipe are oppositely arranged on rolling It takes turns on distance measuring structure protective shell inner wall, idler wheel is set between the two and surface is vertical with the light that luminous tube is sent out;Roller surface Uniformly it is provided with several idler wheel sectored light gate hole;Include two receiving units in reception pipe, the distance between two receiving units with The distance between adjacent rollers sectored light gate hole is identical on idler wheel;Reception pipe is electrically connected with control chip.When the rolling equipped with grating When wheel rotation, the one of unit of reception pipe receives signal, another does not receive signal, and the two change procedure has sequential, So as to judge the rotation distance and rotation direction of wheel simultaneously.
Preferably, ultrasonic ranging structure includes laser emitter and ultrasonic wave integral probe, ultrasonic wave integral probe It receives control chip signal and sends out ultrasonic wave;Ultrasonic wave integral probe receives reflected ultrasonic wave and to control core Piece sends out signal;Laser emitter is connect with control chip.
Ultrasonic transmitter emits ultrasonic wave to a direction, starts timing while emission time, ultrasonic wave is in sky It is propagated in gas, encounters barrier on the way and just return to come immediately, ultrasonic receiver receives back wave and just stops timing immediately.Ultrasound Wave detection is often relatively rapid, conveniently, calculate it is simple, be easy to accomplish real-time control.Laser emitter passes through for sending out laser Laser optical path carries out target alignment.
Preferably, display screen is LCD screen.LCD screen shows that area is big, and picture effect is good, supports digital interface, body Product is small and exquisite, can be used for miniature instrument.
The utility model has significant technique effect as a result of above technical scheme:Range measurement can be carried out, With various modes, it is suitable for a variety of measurement occasions, easy to operate, accuracy is high.
Description of the drawings
Fig. 1 is the external structure schematic diagram 1 of the utility model embodiment 1.
Fig. 2 is the external structure schematic diagram 2 of the utility model embodiment 1.
Fig. 3 is the internal structure schematic diagram of the utility model embodiment 1.
Fig. 4 is 1 drawstring distance measuring structure schematic diagram 1 of the utility model embodiment.
Fig. 5 is 1 drawstring distance measuring structure schematic diagram 2 of the utility model embodiment.
Fig. 6 is 1 idler wheel distance measuring structure schematic diagram 1 of the utility model embodiment.
Fig. 7 is 1 idler wheel distance measuring structure schematic diagram 2 of the utility model embodiment.
The toponym that each number designation is referred in the figures above is as follows:Wherein, 1-shell, 2-buttons, 3-are drawn Restrict distance measuring structure, 4-idler wheel distance measuring structures, 5-ultrasonic ranging structures, 6-display screens, 7-control chips, 31-drawstrings, 32-bull wheels, 33-bull wheel grating sensors, 34-limited blocks, 35-drawstring distance measuring structure protective shells, 41-idler wheels, 42-idler wheel grating sensors, 43-indicator lights, 44-idler wheel distance measuring structure protective shells, 51-laser emitters, 52-ultrasounds Wave integral probe, 321-bull wheel sectored light gate hole, 411-idler wheel sectored light gate hole.
Specific implementation mode
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 7, a kind of Multifunctional range finder, including shell 1, button 2, drawstring distance measuring structure 3, idler wheel are surveyed Away from structure 4, ultrasonic ranging structure 5, display screen 6 and control chip 7;Shell 1 wraps up drawstring and control chip 7, button 2 and aobvious Display screen 6 is set to 1 surface of shell;Control chip 7 connect with drawstring distance measuring structure 3 and receives its data, controls chip 7 and idler wheel Distance measuring structure connects and receives its data;Control chip 7 is connect with display screen 6 and control display screen 6 works;Button 2 and control Chip 7 connects, and ultrasonic ranging structure 5 is connect with control chip 7.
It includes acquisition module, driver module, logical operation module and memory module, logical operation mould to control chip 7 Block is connect with acquisition module, driver module and memory module respectively, acquisition module respectively with drawstring distance measuring structure 3 and idler wheel The data that distance measuring structure 4 is connected and both received, logical operation module receive the signal of acquisition module data and button 2 and to aobvious Show that drive module transmission data, logical operation module and memory module transceiving data, driver module are connect simultaneously with display screen 6 Display screen 6 is driven to work, memory module stores data.
Drawstring distance measuring structure 3 includes that drawstring 31, bull wheel 32, bull wheel grating sensor 33, limited block 34 and drawstring are surveyed Away from structural defence shell 35, on bull wheel 32, the other end is connect 31 one ends wound of drawstring with limited block 34;Bull wheel grating sensing Device 33 detects 32 rotation distance of bull wheel and rotation direction and transfers data to control chip 7, drawstring distance measuring structure protective shell 35 block bull wheel grating sensor 33 and bull wheel 32;Shell 1 is equipped with through-hole, and drawstring 31 is passed through from through-hole.Bull wheel Grating sensor 33 includes luminous tube and reception pipe, and luminous tube and reception pipe are oppositely arranged in drawstring distance measuring structure protective shell 35 On wall, bull wheel 32 is set between the two and surface is vertical with the light that luminous tube is sent out;If 32 surface of bull wheel is uniformly provided with Dry drawing rope sheave sectored light gate hole 321;Include two receiving units, the distance between two receiving units and bull wheel in reception pipe The distance between adjacent bull wheel sectored light gate hole 321 is identical on 32;Reception pipe is electrically connected with control chip 7.
Idler wheel distance measuring structure 4 includes idler wheel 41, idler wheel grating sensor 42, indicator light 43 and idler wheel distance measuring structure protective shell 44, grating sensor detects 41 rotation distance of idler wheel and rotation direction and transfers data to control chip 7, and protective shell covers rolling Wheel 41;Indicator light 43 is connect with control chip 7.Idler wheel grating sensor 42 includes luminous tube and reception pipe, luminous tube and reception Pipe is oppositely arranged on 44 inner wall of idler wheel distance measuring structure protective shell, and idler wheel 41 is set between the two and surface and luminous tube are sent out Light is vertical;41 surface of idler wheel is uniformly provided with several idler wheel sectored light gate hole 411;Include two receiving units in reception pipe, two The distance between a receiving unit is identical as the distance between adjacent rollers sectored light gate hole 411 on idler wheel 41;Reception pipe and control Coremaking piece 7 is electrically connected.
Ultrasonic ranging structure 5 includes laser emitter 51 and ultrasonic wave integral probe 52, and ultrasonic wave integral probe 52 connects It receives control 7 signal of chip and sends out ultrasonic wave;Ultrasonic wave integral probe 52 receives reflected ultrasonic wave and to control Chip 7 sends out signal;Laser emitter 52 is connect with control chip 7.
When carrying out ranging using drawstring 31, limited block 34 is fixed on to the starting point for the distance to be measured, user, which pulls, to survey Distance meter makes the elongation of drawstring 31 show the distance measured on display screen 6 to the terminal of testing distance.Ranging is carried out using idler wheel 41 When, indicator light 43 lights, and indicates that distance measurement mode instantly is to carry out ranging using idler wheel 41;By idler wheel 41 from testing distance Starting point straight line is rolled into terminal, and the distance measured is shown on display screen 6.When carrying out ranging using ultrasonic wave, laser emitter 51 is sent out Go out laser, by laser optical path alignment target, ultrasonic wave integral probe 52 sends out ultrasonic wave and receive and fires back user Ultrasonic wave, the distance that control chip 7 is measured after calculating by the display of display screen 6.
Display screen 6 is LCD screen.
When in use, there are four buttons 2, respectively pattern or key, memory or on & off switch, clear key is preserved and measures key, Short-press pattern or preservation key can realize pattern switching.Long-press pattern preserves the storable data of key, after data preserve, display screen 6 On " M " mark can flicker.
If there is data preservation, during entire display, " M " can fix display.If there is new data preservation, " M " meeting Flicker.If the data preserved are emptied, then " M " on display screen 6 can disappear.The data newly measured can be automatically saved to M1 In, the measurement data being saved before can then save as M2, M3, M4 ... successively
Under measurement pattern, short-press memory or on & off switch enter memory pattern and show that data base, acquiescence show that M1, M1 are most A measurement data afterwards.When memory button button is pressed more than one time, M1 is shown successively, and M2, M3 are until M9.Long-press is remembered or is opened When crucial, shutdown is realized;Short-press clear key can make the zeroing data of display.Under memory pattern, when by clear key, it will remove The measurement data shown on display screen 6.Such as:When showing M1 on display screen 6, the measured value of M1 can be only removed.If thinking clear Except M2, then memory is pressed again or on & off switch shows the measured value of M2, then short-press clear key removes the measured value of M2, works as M2 When numerical value is eliminated, display screen 6 can automatically return to M1.
Acquiescence enters drawstring pattern for the first time for booting, when being switched on later, can give tacit consent to the pattern before last shutdown and be surveyed in idler wheel Away from measurement key under pattern, is only pinned, the indicator light 43 on idler wheel distance measuring structure 4 will be lit, and display screen 6 will read measurement number According to.When measuring key release, will stop measuring, but display screen 6 keeps display.Under drawstring pattern, short-press measures key and can realize Lock function." H " mark is shown on display screen 6, it is digital then be locked.When the function that unlocks, short-press measures key again, then It can be unbinding.Change the unit of measurement data, then long-press pattern or preserves key and clear key simultaneously.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the claims institute The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.

Claims (8)

1. a kind of Multifunctional range finder, it is characterised in that:It is surveyed including shell (1), button (2), drawstring distance measuring structure (3), idler wheel Away from structure (4), ultrasonic ranging structure (5), display screen (6) and control chip (7);Shell (1) wraps up drawstring and control chip (7), button (2) and display screen (6) are set to shell (1) surface;Control chip (7) connect and connects with drawstring distance measuring structure (3) By its data, control chip (7) connect with idler wheel distance measuring structure and receives its data;Control chip (7) is connect with display screen (6) And control display screen (6) works;Button (2) is connect with control chip (7), and ultrasonic ranging structure (5) connects with control chip (7) It connects.
2. a kind of Multifunctional range finder according to claim 1, it is characterised in that:Control chip (7) include acquisition module, Driver module, logical operation module and memory module, logical operation module respectively with acquisition module, driver module and Memory module connects, and acquisition module connect with drawstring distance measuring structure (3) and idler wheel distance measuring structure (4) and receives the number of the two respectively According to logical operation module receives the signal of acquisition module data and button (2) and to driver module transmission data, and logic is transported Module and memory module transceiving data are calculated, driver module connect with display screen (6) and display screen (6) is driven to work, memory Module stores data.
3. a kind of Multifunctional range finder according to claim 1, it is characterised in that:Drawstring distance measuring structure (3) includes drawstring (31), bull wheel (32), bull wheel grating sensor (33), limited block (34) and drawstring distance measuring structure protective shell (35), drawstring (31) on bull wheel (32), the other end is connect one ends wound with limited block (34);Bull wheel grating sensor (33) detection is drawn Rope sheave (32) rotation distance and rotation direction simultaneously transfer data to control chip (7), drawstring distance measuring structure protective shell (35) shelves Firmly bull wheel grating sensor (33) and bull wheel (32);Shell (1) is equipped with through-hole, and drawstring (31) is passed through from through-hole.
4. a kind of Multifunctional range finder according to claim 3, it is characterised in that:Bull wheel grating sensor (33) includes Luminous tube and reception pipe, luminous tube and reception pipe are oppositely arranged on drawstring distance measuring structure protective shell (35) inner wall, bull wheel (32) it is set between the two and surface is vertical with the light that luminous tube is sent out;Bull wheel (32) surface is uniformly provided with several bull wheels Sectored light gate hole (321);Include two receiving units in reception pipe, the distance between two receiving units on bull wheel (32) The distance between adjacent bull wheel sectored light gate hole (321) is identical;Reception pipe is electrically connected with control chip (7).
5. a kind of Multifunctional range finder according to claim 1, it is characterised in that:Idler wheel distance measuring structure (4) includes idler wheel (41), idler wheel grating sensor (42), indicator light (43) and idler wheel distance measuring structure protective shell (44), grating sensor detect idler wheel (41) rotation distance and rotation direction and control chip (7) is transferred data to, idler wheel distance measuring structure protective shell (44) covers rolling It takes turns (41);Indicator light (43) is connect with control chip (7).
6. a kind of Multifunctional range finder according to claim 5, it is characterised in that:Idler wheel grating sensor (42) includes hair Light pipe and reception pipe, luminous tube and reception pipe are oppositely arranged on idler wheel distance measuring structure protective shell (44) inner wall, and idler wheel (41) is set In between the two and surface is vertical with the light that luminous tube is sent out;Idler wheel (41) surface is uniformly provided with several idler wheel sectored light gate hole (411);Include two receiving units in reception pipe, the distance between two receiving units are fan-shaped with adjacent rollers on idler wheel (41) The distance between grating hole (411) is identical;Reception pipe is electrically connected with control chip (7).
7. a kind of Multifunctional range finder according to claim 1, it is characterised in that:Ultrasonic ranging structure (5) includes swashing Optical transmitting set (51) and ultrasonic wave integral probe (52), ultrasonic wave integral probe (52) reception control chip (7) signal are simultaneously outside Send out ultrasonic wave;Ultrasonic wave integral probe (52) receives reflected ultrasonic wave and sends out signal to control chip (7);Laser Transmitter (51) is connect with control chip (7).
8. a kind of Multifunctional range finder according to claim 1, it is characterised in that:Display screen (6) is LCD screen.
CN201721267206.6U 2017-09-29 2017-09-29 A kind of Multifunctional range finder Expired - Fee Related CN207832165U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721267206.6U CN207832165U (en) 2017-09-29 2017-09-29 A kind of Multifunctional range finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721267206.6U CN207832165U (en) 2017-09-29 2017-09-29 A kind of Multifunctional range finder

Publications (1)

Publication Number Publication Date
CN207832165U true CN207832165U (en) 2018-09-07

Family

ID=63385131

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721267206.6U Expired - Fee Related CN207832165U (en) 2017-09-29 2017-09-29 A kind of Multifunctional range finder

Country Status (1)

Country Link
CN (1) CN207832165U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111679283A (en) * 2020-06-10 2020-09-18 南京凯基特电气有限公司 Multifunctional anti-interference wide-range laser sensor system and use method
CN111982040A (en) * 2020-08-18 2020-11-24 山东泰和建设管理有限公司 Distance measuring and calculating method and device based on rolling distance meter, computer equipment and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111679283A (en) * 2020-06-10 2020-09-18 南京凯基特电气有限公司 Multifunctional anti-interference wide-range laser sensor system and use method
CN111982040A (en) * 2020-08-18 2020-11-24 山东泰和建设管理有限公司 Distance measuring and calculating method and device based on rolling distance meter, computer equipment and storage medium

Similar Documents

Publication Publication Date Title
CN104612682B (en) One kind is based on UWB coal-winning machines absolute position accurate calibration method and device
CN207832165U (en) A kind of Multifunctional range finder
CN104183155A (en) Device for detecting parking space in parking lot and detection method
AU758809B2 (en) Method and apparatus for measuring the length of a multi-section telescopic boom
CN105424139B (en) Level of ground water plugging meter devices and methods therefor based on ultrasonic wave negative pressure
CN202453502U (en) Ultrasonic range finder
CN204087518U (en) A kind of parking position sniffer
CN201974217U (en) Portable ground water level detection equipment
CN106597462A (en) Range measuring method and rang measuring apparatus
CN109322658A (en) A kind of drilling depth measuring device and method
CN107907187A (en) The measuring method and device of the gas-liquid interface depth of salt hole air reserved storeroom
CN110082762A (en) A kind of underdamping antenna transient electromagnetic radar and the method for detecting tunnel-liner disease
CN108490502A (en) Mine detection system and its detection method
CN102829796B (en) A kind of pedometer being mutually located
CN104714256A (en) Quick well wall and wall back nondestructive detecting system based on transient electromagnetic method and detection method of the detection system
CN104635238A (en) Multifunctional measuring instrument for seismic-wave-method advance geological forecast and application method thereof
CN211318746U (en) Novel portable laser range finder
CN109405776A (en) Tunnel Second Lining supplements slip casting thickness detecting equipment
CN206095356U (en) Differential pressure water level measuring apparatu
CN102979508B (en) Method for accurately measuring depth in through-bit well logging
KR102116937B1 (en) Underground pipe investigation apparatus
CN205448987U (en) Structural distortion who utilizes laser sensors measures and collection system
CN110359959A (en) A kind of coal working face gas bearing capacity and advanced stress rapid assay methods
CN205957871U (en) Depth detection apparatus
CN204495315U (en) A kind of measuring system of contour of object

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180907

Termination date: 20200929