CN105627857B - Tape measure - Google Patents
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- CN105627857B CN105627857B CN201410614336.7A CN201410614336A CN105627857B CN 105627857 B CN105627857 B CN 105627857B CN 201410614336 A CN201410614336 A CN 201410614336A CN 105627857 B CN105627857 B CN 105627857B
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- laser ranging
- tape measure
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Abstract
The invention discloses a kind of tape measures, including：Shell, spool, tape；Tape measure further includes：Laser ranging system can be parallel to the detection light velocity measurement target range of first direction by transmitting；Laser ranging system includes：Lasing light emitter generates laser beam；Optical path component can at least make detection light beam of the laser beam that lasing light emitter generates as laser ranging system；Photo-electric conversion element can convert optical signals to electric signal；Power supply accommodates and is at least lasing light emitter power supply in the shell；Optical path component at least further includes：Optical element is turned to, the reflection light for being parallel to first direction that light beam is formed after object reflects can will be at least detected and be diverted to along the direction for being parallel to second direction；Optical element is turned between lasing light emitter and photo-electric conversion element.It is equipped with laser ranging system in the tape measure of the present invention, Sizes and target range farther out can be measured.
Description
Technical field
The present invention relates to range units, specifically design a kind of tape measure with laser ranging system.
Background technology
Tape measure is as a kind of existing common range unit, because being limited by tape measure appearance and size, inside
The limited length of tape for measurement, is limited by appearance and size, thus it can only measure limited distance, for some
The difficulty that the case where needing to measure target range farther out then encounters.
Invention content
To solve the deficiencies in the prior art, the purpose of the present invention is to provide one kind have Sizes and can measure compared with
The tape measure of remote target range.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of tape measure, including：
Shell；
Spool is contained in shell；
Tape is at least partly wound on spool and can be stretched out there are one tools the ruler end part of shell；
Tape measure further includes：
Laser ranging system can be parallel to the detection light velocity measurement target range of first direction by transmitting；
Laser ranging system includes：
Lasing light emitter generates laser beam；
Optical path component can at least make detection light beam of the laser beam that lasing light emitter generates as laser ranging system；
Photo-electric conversion element can convert optical signals to electric signal；
Power supply accommodates and is at least lasing light emitter power supply in the shell；
Optical path component at least further includes：
Turn to optical element, the reflected light for being parallel to first direction that detection light beam can be at least formed after object reflects
Line is diverted to along the direction for being parallel to second direction；
Optical element is turned between lasing light emitter and photo-electric conversion element.
Further, photo-electric conversion element and steering optical element are substantially arranged along the direction for being parallel to second direction, the
One direction is perpendicular to second direction.
Further, first direction is perpendicular to second direction, and in a second direction, lasing light emitter and photo-electric conversion element it
Between distance be more than lasing light emitter and turn to the distance between optical element.
Further, the stretching of tape is oriented parallel to first direction.
Further, there are one central axis, centerline axis parallel to be determined in first direction and second direction for spool tool
Plane.
Further, laser ranging system further includes：
Display module, including a display screen that can show laser ranging information；
Tape measure further includes：
Operating assembly；
Operating assembly includes：
Laser ranging button, for carrying out laser ranging for user's operation to start laser ranging system；
Locking button stretches out the length of shell for locking ruler band；
Wherein, the throwing in plane that display screen, laser ranging button, locking button are determined with second direction in a first direction
Shadow is arranged along first direction, and the projection of laser ranging button is between display screen and the projection of locking button.
Further, shell includes an operation portion, and display module and operating assembly are set to operation portion, laser ranging system
Between operating assembly and ruler end part.
Further, photo-electric conversion element includes at least a PN junction plane for being parallel to first direction.
Further, optical path component further includes：
Collector lens, the reflection light formed after object reflects for receiving detection light beam；
The distance between the optical axis of collector lens and the optical axis of detection light beam are less than photo-electric conversion element and detect light beam
The distance between optical axis.
Further, collector lens includes an arc curve mirror, and arc curve mirror at least partly exposes shell, and arc curve mirror exists
It is parallel to first direction simultaneously and the optical axis of collector lens is deviateed at the midpoint of camber line that second direction section is intercepted.
The invention has the beneficial effects that：The tape measure can not only carry out ranging by conventional tape, while can lead to
It crosses laser ranging system and carries out laser ranging, in this way, not only so that the measurement distance of the tape measure is not limited by the length of tape,
It will not cannot measure to have between tested point and target range because of laser ranging system and object is isolated without mesh can be measured
Mark, the two are covered the shortage mutually, according to the use of actual conditions selectivity, so that the use of the tape measure of the present invention is unrestricted
It is system, more convenient, extensively, and the reasonable in internal structure of wherein laser ranging system, low-profile.
Description of the drawings
Fig. 1 show the structural schematic diagram of the tape measure of the present invention；
Fig. 2 show the tape measure in Fig. 1 and removes the internal view after part enclosure；
Fig. 3 show the stereogram of the part-structure of the laser ranging system in Fig. 2；
Fig. 4 show the plan view of the part-structure of the laser ranging system in Fig. 3；
Fig. 5 show the enlarged diagram of the collector lens in Fig. 3；
Fig. 6 show the structural schematic diagram of the light path pedestal in Fig. 3.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of tape measure with laser ranging system 40, and tape measure internal structure arrangement is reasonable, low-profile.
Fig. 1 show the structural schematic diagram of the tape measure of the present invention；Fig. 2 show the tape measure in Fig. 1 and removes the internal view after part enclosure.
Please with reference to Fig. 1 and Fig. 2, tape measure 1 of the invention includes：Shell 10, spool 20, tape 30, laser ranging system 40, operation
Component 50.
Shell 10 is primarily used to form the shape of tape measure 1, and rest part is assembled into an entirety.Specifically, shell
10 include：Main casing 11 and auxiliary shell 12, wherein main casing 11 be used to accommodate spool 20 and tape 30 wound on spool 20
Part.Auxiliary shell 12 is integrally formed with main casing 11, is extended out from main casing 11, which is mainly used for accommodating
Laser ranging system 40.Preferably, main casing 11 is generally circular, matches with the shape of spool 20, auxiliary shell 12
It is generally rectangular shaped.
Spool 20 is contained in for winding tape 30 in the main casing 11 of shell 10.It has there are one central axis Y,
A 10 fixed rotation pivot 21 of opposite shell is additionally provided at central axis Y.Spool 20 can relatively rotate the rotation of pivot 21,
And by rotation so that 30 opposite shell 10 of tape is stretched out or retracted.
30 winds portions of tape are on spool 20 comprising：Ruler end part 31 and fixed part (figure is not marked), wherein fixed part is solid
Due on spool 20, ruler end part 31 can stretch out shell 10.
Fig. 3 show the stereogram of the part-structure of the laser ranging system in Fig. 2.Please with reference to Fig. 1 to Fig. 3, swash
Optical range finding apparatus can launch the detection light beam A measurement target range for being parallel to first direction X comprising：Lasing light emitter 41, light path
Component 42, photo-electric conversion element 43, power supply（Figure is not marked）, display module 44.
Lasing light emitter 41 is generated and transmitted by the laser beam along straightline propagation.Specifically, lasing light emitter 41 includes：Laser can be emitted
Laser tube 411 and control the laser tube 411 light source circuit board 412.Power electric connection to light source circuit board 412 is lasing light emitter
41 power supplies.
Fig. 4 show the plan view of the part-structure of the laser ranging system in Fig. 3.Please with reference to Fig. 1 to Fig. 4,
In the application, the laser beam for being generated by lasing light emitter 41 and being reflected without the object except laser ranging system 40 is known as detecting light beam
A, and through the object except laser ranging system 40（The generally object of detecting distance）The laser beam of reflection is known as reflected light
Line B, wherein detection light beam A extends along first direction X, and reflection light B is parallel to first direction X, certainly, it is known that by
The light of object reflection is not only only parallel to the light of first direction X, also with other divergings along other directions
Light, here, we preferably using the available light that element 43 is received of capable of being photoelectrically converted as reflection light B, namely
It is the light for being parallel to first direction X in all light reflected.
Detection light beam A of the laser beam that optical path component 42 is used to that lasing light emitter 41 to be made to generate as laser ranging system 40, and
The reflection light B formed after the detection light beam A can be made to be reflected by the object the elements 43 that are photoelectrically converted are received.Specifically, it is wrapped
It includes：Emitting light path component（Figure is not marked）, light path component（Figure is not marked）And light path pedestal 421.
Emitting light path component at least can by laser beam that lasing light emitter 41 is sent out along first direction X be oriented to out shell 10 using as
Detect light beam A.Light path pedestal 421 at least forms an exit channel so that laser beam in the first direction X of detection light beam A outgoing
Pass through light path pedestal 421.
Preferably, emitting light path component at least further includes：Can to polarization light into horizontal deflection liquid crystal cell 422,
For realizing the light transmission medium piece 423 of interior light path.Light transmission medium piece 423 can separate incident laser beam therein a branch of to photoelectricity
Conversion element 43 is as light path is referred to, to detect testing distance by reference to the comparison of light path and reflection light B.
Light path component, capable of at least detecting reflection light B of the light beam A by object reflection, Y is oriented in a second direction
To photo-electric conversion element 43, specifically, light path component includes：Turn to optical element 424 and collector lens 425.
Turning to optical element 424 can make the reflection light B for being parallel to first direction X be diverted to second direction Y, then along
Second direction Y injects photo-electric conversion element 43.Turn to optical element 424 be located at lasing light emitter 41 and photo-electric conversion element 43 it
Between.
Fig. 5 show the enlarged diagram of the collector lens in Fig. 3.Please with reference to Fig. 5, collector lens 425 is for connecing
The reflection light B that detection light beam A is formed after object reflects is received, and is introduced into light path component.Specifically, optically focused
Lens 425 include an arc curve mirror 425a, and arc curve mirror 425a exposes shell 10 in part, and exposing mentioned here refers to arc
Shape minute surface 425a can at least be seen a part outside shell 10.Arc curve mirror 425a is parallel to first direction X and at the same time
The midpoint O for the camber line that the two directions sections Y are intercepted deviates the optical axis L of arc curve mirror 425a, that is to say, that arc curve mirror 425a's
Optical axis L is biased into the detection light beam A close to injection, and in other words the both sides arc curve mirror 425a are asymmetric structure.In this way
Being advantageous in that enables collector lens 425 effectively to collect more reflection light B.
Fig. 6 show the structural schematic diagram of the light path pedestal in Fig. 3.Please with reference to Fig. 6, light path pedestal 421 is for solid
Surely emitting light path component and light path component are supported.Specifically, light path pedestal 421 is set to one end in shell 10, packet
It includes：Exit portion 421a and test section 421b, exit portion 421a are used to support emitting light path component, and test section 421b is used to support inspection
Survey optical path component, wherein test section 421b be also located at exit portion 421a along the side of first direction X.Additionally as preferred side
Case, being formed at the test section 421b of light path pedestal 421, which enables reflection light B to be reached by collector lens 425, turns to optical element
424 reflex to the incidence channel of photo-electric conversion element 43 in turn（Figure is not marked）.Preferably, incidence channel is by collector lens 425
The stepped channels structure 421c gradually tapered up is constituted to optical element 424 is turned to, is made of multiple cascaded surfaces, cascaded surface energy
The interference for excluding light, improves the accuracy of laser ranging.
Photo-electric conversion element 43, which is used to reflection light B being oriented to the light come in, is converted into electric signal.In order to realize ranging,
Further include in laser ranging system 40：Detection circuit board 45, detection circuit board 45 are electrically connected with photo-electric conversion element 43, main to use
In the electric signal that processing photo-electric conversion element 43 generates.Specifically, the photo-electric conversion element 43 is set to the inspection of light path pedestal 421
The side of the separate exit portion 421a of survey portion 421b, so that the steering optical element 424 being located in test section 421b can be with
Between photo-electric conversion element 43 and lasing light emitter 41.
Power capacity is mainly the various pieces power supply in laser ranging system 40, such as lasing light emitter in shell 10
41, photo-electric conversion element 43 and display module 44 etc..Specifically, power supply includes：One cell device（It is not shown）, use battery
Element is the portability that the power supply of laser ranging system 40 can improve laser ranging system 40.
Display module 44 is mainly used for the corresponding information of user feedback, specifically, display module 44 includes：One energy
Show that the display screen 441 of ranging information, the display screen 441 are located at the side of shell 10, and positioned at the close Laser Measuring of shell 10
One end away from device 40, in other words closer to laser ranging system 40 for one end of the receiving spool 20 of opposite shell 10
One end, more specifically, display screen 441 are located on the auxiliary shell 12 of shell 10.
Operating assembly 50 in tape measure 1 is mainly used for operating for user, specifically, operating assembly 50 includes：Lock
Only button 51 and laser ranging button 52.Wherein, locking button 51 is used for when 30 opposite shell 10 of tape stretches out certain length
Locking ruler band 30, laser ranging button 52, which is used to start laser ranging system 40 for user, carries out laser ranging.
Preferably, the position of each component of tape measure 1 of the invention is also made that special setting：Tape 30 is stretched out
Be oriented parallel to first direction X, that is to say the side of tape 30 stretched out direction and laser ranging system 40 and project detection light beam A
To being mutually parallel；The central axis Y-direction of spool 20 is also parallel with plane determined by first direction X and second direction Y；Display
The projection of screen 441, laser ranging button 52 and locking button 51 plane determined by X and second direction Y in a first direction is along the
One direction X is arranged, and the projection of laser ranging button 52 is between display screen 441 and the projection of locking button 51；Shell 10
It is additionally provided with an operation portion 13, which is located at the same side of main casing 11 and auxiliary shell 12, display module 44 and operation
Component 50 is located on the operation portion 13, and laser ranging system 40 is located between operating assembly 50 and the ruler end part 31 of tape 30.
In this way so that spool 20, tape 30 in tape measure 1 of the invention, the relative position of laser ranging system 40 are reasonable for structure, and energy
Enough reduce the size of entire tape measure 1.
In previous light path system, there is no steering optical elements 424, but photo-electric conversion element 43 is set as straight
The reflection light B for being parallel to detection light beam A is received, lasing light emitter 41 and photo-electric conversion element 43 are often design side by side at this time
, if make lasing light emitter 41 close to photo-electric conversion element 43 if make between them and support to generate between their circuit dry
It disturbs, then reflection light B separate if it is them（On the direction of vertical reflection light B, closer to light source reflection light B intensity
It is bigger）Quite a few cannot return to photo-electric conversion element 43, influence the effect and precision of ranging.
And in this application, then it uses and turns to optical element 424, it is such to be advantageous in that：Make photo-electric conversion element 43
It can not side by side be designed with the laser tube 411 of lasing light emitter 41, it is made to remain to receive at the position for being relatively distant from laser tube 411
Most reflection light B, moreover, relative separation design photo-electric conversion element 43 and lasing light emitter 41 can make connection it
Detection circuit board 45 and light source circuit board 412 can be provided separately in shell 10, the especially thickness direction of shell 10
For upper.Preferably, detection circuit board 45, light source circuit board 412 are also mutually perpendicular to, and both perpendicular to first direction X and
Plane determined by second direction Y.Make thickness gauge of the shell 10 on the first direction X perpendicular to detection light beam A outgoing in this way
It is very little to be controlled effectively.
Preferably, first direction X is perpendicular to second direction Y, that is to say, that turns to optical element 424 and is arranged to
The reflection light B reflections being emitted back towards along first direction X are diverted to the second direction Y vertical with first direction X.As further
Preferred embodiment, photo-electric conversion element 43 and steering optical element 424 are substantially along the direction setting for being parallel to second direction Y, here
The described settings of Y in a second direction refer to the opposite position for turning to optical element 424 of photo-electric conversion element 43, in this way, photoelectricity
The position of conversion element 43 is also adapted to receive the light perpendicular to first direction X.
Further, on second direction Y, the distance between lasing light emitter 41 and photo-electric conversion element 43 are more than lasing light emitter 41
The distance between steering optical element 424；It is corresponding, between the optical axis L of collector lens 425 and the optical axis for detecting light beam A
Distance is less than photo-electric conversion element 43 and detects the distance between the optical axis of light beam A, and the optical axis L of collector lens 425 and detection
The distance between the distance between optical axis of light beam A and photo-electric conversion element 43 and the optical axis that detects light beam A 0.1-0.7 it
Between.In this way, on second direction Y, optical element 424 is turned between lasing light emitter 41 and photo-electric conversion element 43, optically focused is saturating
Mirror 425 is located between detection light beam A and photo-electric conversion element 43 so that internal light channel structure setting is reasonable, and detection light beam A is passed through
Reflection light B after object reflection is reached after capable of being received by collector lens 425 and is turned to optical element 424, is then turned to second
Direction Y is simultaneously incident upon photo-electric conversion element 43, realizes ranging, and make 40 compact structure of entire laser ranging system
As further preferably, photo-electric conversion element 43 includes at least a PN junction plane for being parallel to first direction X
（It is not shown in figure）.It is realized specifically, a photodiode may be used in photo-electric conversion element 43, the photodiode packet
It includes：PN junction plane and the transparent shroud for protecting PN pitch planes（It is not shown in figure）, it is snowslide more to have the photodiode of choosing
Photodiode（APD, Avaanche Photo Diode）.
The tape measure 1 of the present invention can not only carry out ranging by conventional tape 30, while can be filled by laser ranging
40 carry out laser rangings are set, in this way, not only so that the measurement distance of the tape measure 1 is not limited by the length of tape 30, it will not
Because laser ranging system 40, which cannot measure to have between tested point and target range, is isolated object without that can measure target, two
Person covers the shortage mutually, according to the use of actual conditions selectivity so that the use of the tape measure 1 of the present invention it is unrestricted,
It is more convenient, extensively, and the reasonable in internal structure of wherein laser ranging system 40, low-profile.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (9)
1. a kind of tape measure, including：
Shell；
Spool is contained in the shell；
Tape is at least partly wound on the spool and can be stretched out there are one tools the ruler end part of the shell；
It is characterized in that：
The tape measure further includes：
Laser ranging system can be parallel to the detection light velocity measurement target range of first direction by transmitting；
The laser ranging system includes：
Lasing light emitter generates laser beam；The lasing light emitter includes laser tube and connects the light source circuit board of the laser tube；
Optical path component can at least make the detection of the laser beam that the lasing light emitter generates as the laser ranging system
Light beam；The optical path component includes light transmission medium piece；
Photo-electric conversion element can convert optical signals to electric signal；The light transmission medium piece is used for the photo-electric conversion element
The part of laser beam that the lasing light emitter generates is introduced to be used as with reference to light path；
Detection circuit board, the detection circuit board are electrically connected with the photo-electric conversion element；
Power supply accommodates and is at least the lasing light emitter power supply in the housing；
The optical path component at least further includes：
Optical element is turned to, at least can be parallel to the anti-of the first direction by what the detection light beam was formed after object reflects
Turn light rays are penetrated to along the direction for being parallel to second direction；
The steering optical element is between the lasing light emitter and the photo-electric conversion element；
Perpendicular to the second direction, and in this second direction, the lasing light emitter turns the first direction with the photoelectricity
It changes the distance between element and is more than the distance between the lasing light emitter and the steering optical element；
The detection circuit board and the light source circuit board are provided separately inside the shell, the detection circuit board and light source electricity
Road plate is mutually perpendicular to, and the detection circuit board and the light source circuit board are each perpendicular to first direction and second direction is determined
Plane.
2. tape measure according to claim 1, which is characterized in that the photo-electric conversion element and the steering optical element are big
It causes along the direction setting for being parallel to the second direction, the first direction is perpendicular to the second direction.
3. tape measure according to claim 1, which is characterized in that the stretching of the tape is oriented parallel to the first party
To.
4. tape measure according to claim 1, which is characterized in that there are one central axis, the central shafts for the spool tool
The plane that line is parallel to the first direction and the second direction determines.
5. tape measure according to claim 1, which is characterized in that
The laser ranging system further includes：
Display module, including a display screen that can show laser ranging information；
The tape measure further includes：
Operating assembly；
The operating assembly includes：
Laser ranging button carries out laser ranging for starting the laser ranging system for user's operation；
Locking button stretches out the length of the shell for locking the tape；
Wherein, the display screen, the laser ranging button, the locking button are in the first direction and the second direction
Projection in determining plane is arranged along first direction, and the projection of the laser ranging button is located at the display screen and described
Between the projection of locking button.
6. tape measure according to claim 5, which is characterized in that the shell include an operation portion, the display module and
The operating assembly is set to the operation portion, the laser ranging system be located at the operating assembly and the ruler end part it
Between.
7. according to the tape measure described in claim 1 to 6 any one, which is characterized in that the photo-electric conversion element includes at least
One PN junction plane for being parallel to the first direction.
8. according to the tape measure described in claim 1 to 6 any one, which is characterized in that the optical path component further includes：
Collector lens, the reflection light formed after object reflects for receiving the detection light beam；
The optical axis of the collector lens and the distance between the optical axis of the detection light beam are less than the photo-electric conversion element and institute
State the distance between the optical axis of detection light beam.
9. according to the tape measure described in claim 8 any one, which is characterized in that the collector lens includes an arc mirror
Face, the arc curve mirror at least partly expose the shell, and the arc curve mirror is parallel to the first direction and institute at the same time
Deviate the optical axis of the collector lens in the midpoint for stating the camber line that second direction section is intercepted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614336.7A CN105627857B (en) | 2014-11-04 | 2014-11-04 | Tape measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614336.7A CN105627857B (en) | 2014-11-04 | 2014-11-04 | Tape measure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105627857A CN105627857A (en) | 2016-06-01 |
| CN105627857B true CN105627857B (en) | 2018-08-07 |
Family
ID=56043014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410614336.7A Active CN105627857B (en) | 2014-11-04 | 2014-11-04 | Tape measure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105627857B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976682A (en) * | 2016-10-25 | 2018-05-01 | 杭州巨星工具有限公司 | A kind of range unit |
| US11156444B2 (en) | 2016-10-25 | 2021-10-26 | Hangzhou Great Star Industrial Co., Ltd. | Distance measuring device |
| CN106871832A (en) * | 2017-04-25 | 2017-06-20 | 苏州蓝王机床工具科技有限公司 | A kind of multifunction combined measuring scale |
| CN109100732A (en) * | 2017-06-21 | 2018-12-28 | 杭州巨星智能科技有限公司 | A kind of range unit |
| CA3067652A1 (en) * | 2017-06-21 | 2018-12-27 | Hangzhou Great Star Industrial Co., Ltd. | Distance measuring device |
| CN110057350A (en) * | 2019-05-20 | 2019-07-26 | 贵州师范大学 | A kind of Karst region plant population spatial distribution measurement device and method |
| CN111102894B (en) * | 2019-12-31 | 2022-02-01 | 中鼎建安集团有限公司 | Multifunctional measuring tape |
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| JP2005083997A (en) * | 2003-09-10 | 2005-03-31 | Ricoh Co Ltd | Optical sensor and image forming apparatus |
| CN2685816Y (en) * | 2004-03-30 | 2005-03-16 | 黄高明 | Multifunction band tape |
| CN2798035Y (en) * | 2005-05-25 | 2006-07-19 | 来延安 | Laser flexible rule |
| JP2008286595A (en) * | 2007-05-16 | 2008-11-27 | Ihi Corp | Laser range finder |
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| CN102645738A (en) * | 2012-04-23 | 2012-08-22 | 南京德朔实业有限公司 | Laser range finder and condensing mirror applicable for receiving light of laser range finder |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105627857A (en) | 2016-06-01 |
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