CN207020310U - A kind of range unit - Google Patents

Abstract

The utility model provides a kind of range unit, including shell, the 3rd housing, tape structure and laser ranging system, shell are combined into by the first housing and the second housing；3rd housing is located between first housing and second housing, and surrounds a tape measure cavity with second housing；Tape structure is in the tape measure cavity；Laser ranging system is located between first housing and the 3rd housing.

Description

A kind of range unit

Technical field

It the utility model is related to ranging field of tool, and in particular to a kind of range unit.

Background technology

Tape measure and laser range finder are all a kind of common ranging instruments, can be applied to construction, indoor decoration, traffic The fields such as accident treatment.The tape measure of prior art, need to make the ruler end part of tape, measurement end and testee in use Initial end, end are horizontal corresponding one by one, it is therefore desirable to which survey crew's hand or other auxiliary devices cause tape and testee Keep fitting.Under some specific occasions, ordinary tape measure operation inconvenience, measurement accuracy are relatively low.Such as measure and lead in hazardous location Domain, the practicality of ordinary tape measure is with regard to poor.

For another example in the realm of building construction, it is often necessary to use tape measure ground survey high-altitude lateral object length or with The distance of certain vertical object of reference.Because tape measure is without specific attachment point, the sight of people itself can only be relied on to measure starting every sky Or the judgement of terminal, therefore the error of measured value is larger, measurement accuracy is poor, the numerical value of mistake can be to ensuing construction Work adversely affects.If it is desired to more accurate eminence measurement data is obtained, it is necessary to which survey crew sets up shelf with tape measure Or high ladder climbs to eminence, measurement could be completed by tape measure is attached in object being measured.If testee length is larger, it is necessary to two Worker more than individual climbs to eminence jointly could complete measurement process, troublesome in poeration, human cost is higher, and survey crew climbs Certain risk of falling to eminence be present, it is dangerous larger.

Further, since the tape limited length of tape measure, its application scenarios are limited by tape measure length, range ratio relatively has Limit, is only used for the less occasion in space, it is impossible to be used in the larger occasion in space.The range of ordinary tape measure, typically 5 meters, 7.5 Rice or 10 meters or so；Some special tape measures, range even can reach 15 meters or 20 meters.However, the range of tape measure is bigger, Its volume is also bigger, thus survey crew carry and it is inconvenient for use.

Although the laser range finder measurement accuracy of prior art is higher, volume is larger, cost is higher, carries and using not Just；Some laser range finders after a long time use, the light-emitting area of its lasing light emitter and the smooth surface of light sensitive device all can by compared with Big abrasion, so as to influence light feedback sensitivity and range accuracy.Moreover, laser range finder in short distance ranging error compared with Greatly, indoors decoration etc. field be restricted it is larger, it is difficult to large-scale promotion application.

Utility model content

The purpose of this utility model is to provide a kind of range unit solve the tape measure of prior art under specific occasion, Bulky, operation inconvenience, measurement accuracy are low, the technical problem such as inconvenient to carry.

In order to solve the above technical problems, the utility model provides a kind of range unit, including shell, by the first housing and the Two shell combinations into；3rd housing, surrounded between first housing and second housing, and with second housing One tape measure cavity；Tape structure, in the tape measure cavity；And laser ranging system, located at first housing and institute State between the 3rd housing.

Further, in different embodiments, first housing includes the first housing bottom surface and the first housing sidewall；Institute Stating the second housing includes the second housing bottom surface and the second housing sidewall；3rd housing includes the 3rd housing bottom surface and the 3rd shell Body sidewall；Second housing sidewall is connected to each other with first housing sidewall, is combined into the side wall of the shell；Described Three housing sidewalls are connected to second housing bottom surface.

Further, in different embodiments, the range unit also includes overcoat, is partly or entirely coated on described One housing sidewall and second housing sidewall；And/or partly or entirely it is coated on first housing bottom surface and described first Housing sidewall junction.

Further, in different embodiments, the laser ranging system includes generating device of laser, for emission measurement Light beam is to determinand；The determinand reflects the measuring beam, generates reflection light；Photoelectric conversion device is complete for capturing Portion or the part reflection light, the optical signal of the reflection light captured is converted at least one feedback electric signal；Circuit Plate, the circuit board are provided with processor；And power supply, be connected to the generating device of laser, the photoelectric conversion device and The circuit board；Wherein, the processor is connected to the generating device of laser, for controlling the generating device of laser；Institute State processor and be connected to the photoelectric conversion device, for obtaining the feedback electric signal, and calculate the determinand with it is described The distance of range unit.

Further, in different embodiments, the generating device of laser includes light-emitting area, is recessed in first shell side Wall；The photoelectric conversion device includes smooth surface, is recessed in the first housing sidewall, and adjacent with the light-emitting area.

Further, in different embodiments, the circuit board is parallel with the first housing bottom surface；The laser fills Put, the photoelectric conversion device is all located above or below the power supply with the circuit board；The generating device of laser, institute State left side or right side that photoelectric conversion device is located at the circuit board.

Further, in different embodiments, the circuit board is located at the left side or right side of the power supply；The circuit board It is parallel with the first housing bottom surface.

Further, in different embodiments, the range unit also includes access panel, and it is made up of transparent material, if In first housing and/or the second surface of shell；Display device mounting bracket, protrude inwardly from first housing bottom surface and First housing sidewall, and be oppositely arranged with the access panel；And display device, it is parallel with the access panel, and it is attached to institute State display device mounting bracket；The display device is connected to the processor, for showing the determinand and the ranging The distance of device.

Further, in different embodiments, the angle of plane residing for the access panel and the outer casing bottom plane is 30~60 degree；The angle of plane residing for the display device and the outer casing bottom plane is 30~60 degree.

Further, in different embodiments, the range unit also includes operation circuit plate, parallel to the circuit Plate, and the first housing bottom surface is fixed to, the operation circuit plate is electrically connected to the processor；By compressing switch, located at the behaviour Make on circuit board close to the side of first housing bottom surface；And button, through the first housing bottom surface, its one end is connected to institute State by compressing switch, its other end is located at first housing outer surface.

Further, in different embodiments, first housing bottom surface includes button mounting hole, through the first housing bottom Face；And mounting hole groove, located at the button mounting hole edge；The button includes keying body, and it is column, is passed through The button mounting hole；And button fixture block, protrude from the keying body edge；It is caught in the mounting hole groove.

Further, in different embodiments, the circuit board is provided with memory, is connected to the processor；For Store the distance of the determinand and the range unit.

Further, in different embodiments, the generating device of laser includes but is not limited to laser tube；The photoelectricity turns Changing device includes but is not limited to photoelectric sensor；The power supply includes but is not limited to button battery, cuboid battery or cylinder Body battery.

Further, in different embodiments, the tape structure includes tape measure wheel, is turnably installed on the tape measure In cavity；Tape, completely or partially it is wound on the tape measure wheel；One end of the tape is fixedly attached to the tape measure wheel, Its other end is provided with ruler end part；And band outlet, located at the side wall lower ends of the shell, the ruler end part passes through the band outlet Stretch out outside the shell.

Further, in different embodiments, an axostylus axostyle protruded is provided with the middle part of the second housing bottom surface, perpendicular to described the Two housing bottom surfaces；The tape measure wheel center is provided with a sets of holes, is sheathed on outside the axostylus axostyle；When the tape is pulled outward When, the tape measure wheel rotates.

Further, in different embodiments, the tape structure also includes briquetting, in the tape measure cavity and leans on At the nearly band outlet；Shell fragment, its one end are connected to briquetting, and its other end is connected to second housing；And locking key, lead to Cross elastic component and be connected to second housing or the 3rd housing；Described locking key one end is located at second housing outer surface, its The other end and the briquetting it is tangent or mutually from；When the locking key is pressed, the locking key and the briquetting are tangent, described Briquetting loosens the tape；When the locking key is released, the locking key is with the briquetting mutually from the briquetting compresses institute State tape.

The utility model has the advantage of, there is provided a kind of range unit, tape measure is combined with laser range finder, had simultaneously Standby short distance ranging and long range distance measurement function, have the characteristics that simple to operate, easy to carry, cost is cheap, measurement accuracy is high, Suitable in field large-scale promotion applications such as construction, indoor decoration, danger zone measurements.

Brief description of the drawings

Fig. 1 is the utility model embodiment positive structure schematic；

Fig. 2 is the utility model embodiment structure schematic diagram；

Fig. 3 is the structural representation of the housing of the utility model embodiment first；

Fig. 4 is the structural representation of the housing of the utility model embodiment second；

Fig. 5 is the structural representation after the housing of the utility model embodiment first, the second housing and the 3rd housing decompose；

Fig. 6 is the utility model embodiment side structure schematic diagram；

Fig. 7 is the structural representation of the first enclosure interior in the utility model embodiment；

Fig. 8 is structural representation of the utility model embodiment laser ranging system in the first housing inner portion；

Fig. 9 is the electrical block diagram of the utility model embodiment laser ranging system；

Figure 10 is the cross-sectional view of operation device in the utility model embodiment；

Figure 11 is the structural representation of the first enclosure interior in the utility model embodiment.

Figure 12 is the partial enlarged drawing of locking mechanism in the utility model embodiment；

Figure 13 is the partial enlarged drawing of tape measure wheel in the utility model embodiment.

Part numbers are as follows in figure：

1 shell, 2 laser ranging systems, 3 tape structures, 4 overcoats, 5 clips；

11 first housings, 12 second housings, 13 the 3rd housings；

21 generating device of laser, 22 photoelectric conversion devices, 23 circuit boards, 24 display devices, 25 operation devices；

26 power supplys, 27 access panels, 28 display device mounting brackets；

31 tape measure wheels, 32 tape, 33 band outlets, 34 briquettings, 35 locking keies, 36 ruler end parts；

37 shell fragments, 38 axostylus axostyles；

111 first housing bottom surfaces, 112 first housing sidewalls, 121 second housing bottom surfaces, 122 second housing sidewalls,

131 the 3rd housing bottom surfaces, 132 the 3rd housing sidewalls；

211 light-emitting areas, 221 smooth surfaces, 231 processors, 232 memories；

251 buttons, 252 operation circuit plates, 253 by compressing switch；311 sets of holes；

1111 button mounting holes, 1112 mounting hole grooves, 2511 keying bodies, 2512 button fixture blocks.

Embodiment

A preferred embodiment of the present utility model is introduced below with reference to Figure of description, can be to the technology in this area Personnel's complete description the utility model, make its technology contents more clear and readily appreciate.The utility model can pass through many Various forms of embodiments emerge from, and the scope of protection of the utility model is not limited only to the embodiment mentioned in text.

In the accompanying drawings, structure identical part is represented with same numbers label, everywhere the similar component of structure or function with Like numeral label represents.The size and thickness of each component shown in the drawings arbitrarily show that the utility model does not have Limit the size and thickness of each component.In order that diagram is apparent, the appropriate thickness for exaggerating part in some places in accompanying drawing.

The direction term that the utility model is previously mentioned, for example, " on ", " under ", "front", "rear", "left", "right", " interior ", " outer ", " side " etc., are only the directions in accompanying drawing, are used only to explanation and illustration the utility model, rather than for limiting this The protection domain of utility model.

When some components be described as " " another component " on " when, the component can be placed directly within another component On；There may also be an intermediate module, the component is placed on the intermediate module, and the intermediate module is placed in another component On.When a component is described as " being attached to " or " being connected to " another component, the two can be understood as direct " installation " or " connection ", or a component pass through indirect " being attached to " or " being connected to " another component of an intermediate module.

As Figure 1-3, the present embodiment provides a kind of range unit, including shell 1, laser ranging system 2 and tape measure knot Structure 3.

As shown in Fig. 1~2, shell 1 is an irregular cuboid, and its width is equal or approximately equal with height, its Thickness is about the 25%~40% of its width.

As shown in figs. 2 to 4, shell 1 is combined into by the first housing 11 and the second housing 12；First housing 11 includes first The housing sidewall 112 of housing bottom surface 111 and first；Second housing 12 includes the second housing bottom surface 121 and the second housing sidewall 122； Second housing sidewall 122 is connected to each other with the first housing sidewall 112, is together to form side wall and the bottom surface of shell 1.

As shown in figure 5, be provided with the 3rd housing 13 between the first housing 11 and the second housing 12, the 3rd housing 13 includes the Three housing bottom surfaces 131 and the 3rd housing sidewall 132；3rd housing sidewall 132 is connected to the bottom surface of the second housing 12, the 3rd housing 13 and second housing 12 surround a tape measure cavity 14.Tape structure 3 is in tape measure cavity 14；Laser ranging system 2 is located at the Between one housing 11 and the 3rd housing 13.

The present embodiment also includes overcoat 4, and it is made up of elastic material or soft materials, is partly or entirely coated on first shell The housing sidewall 122 of body sidewall 112 and second；And/or partly or entirely it is coated on the first housing bottom surface 111 and the first housing sidewall 112 junctions.The effect of overcoat 4 is, strengthens feel, increases the coefficient of friction of the range unit and user's hand, prevent Range unit slides from user's hand；Meanwhile if range unit slides from user's hand, there can be certain buffering to make With the electronic installation and mechanical structure for avoiding inside are broken.

As can be seen from figures 6 to 8, laser ranging system 2 include generating device of laser 21, photoelectric conversion device 22, circuit board 23, Display device 24, operation device 25 and power supply 26.

21 preferred laser tube of generating device of laser, i.e. glass enclosed type CO₂Laser, but laser tube is not limited to, also may be used Think other devices that can produce laser beam.22 preferred photoelectric sensor of photoelectric conversion device, but it is not limited to photoelectric sensing Device, or other devices that can be captured light and convert optical signals to electric signal.Generating device of laser 21 and photoelectricity Conversion equipment 22 can be to be arranged side by side, or setting up and down.In the present embodiment, it is preferable that generating device of laser 21 with Photoelectric conversion device 22 is setting up and down, and is combined as a whole.

Generating device of laser 21 includes light-emitting area 211, and photoelectric conversion device 22 includes smooth surface 221.Smooth surface 221 is set The side of light-emitting area 211 is placed in, it is adjacent to each other with light-emitting area 211.If light-emitting area and smooth surface are arranged at into housing outer surface, Carry, in use and management process, it is easy to it is worn, it is more due to wearing after long-term use of, rangefinder will be reduced Light feedback sensitivity and measurement accuracy, reduce service life.In the present embodiment, light-emitting area 211 is all recessed in smooth surface 221 First housing sidewall 112, recessed depth are more than 5mm or more than 10mm so that light-emitting area 211 will not be ground with smooth surface 221 Damage.On the premise of generating device of laser 21, the normal work of photoelectric conversion device 22 is not influenceed, light-emitting area 211 is further improved With the service life of smooth surface 221, it is ensured that the light feedback sensitivity and measurement accuracy of range unit.

As shown in figure 9, circuit board 23 is provided with least one processor 231.Processor 231 is connected to generating device of laser 21, for controlling the normal work of generating device of laser 21.Processor 231 is connected to photoelectric conversion device 22, is fed back for obtaining Electric signal, and calculate the distance of determinand and range unit described in the present embodiment.Selectively, it is also provided with circuit board 23 Memory 232, memory 232 are connected to processor 231, for storing the distance of the determinand and the range unit, with Just read-record can also be checked from display device 24 again when user forgets reading.

At work, processor 231 sends control signal to the present embodiment, and order generating device of laser 21 is launched laser beam and made For measuring beam to determinand；Measuring beam is formed on determinand surface to be reflected, and produces reflection light, in reflection light parallel to A part of light of measuring beam device 22 that can be photoelectrically converted captures, and is converted into electric signal, feeds back to Processor 231.One timer can be set inside processor 231, record from generating device of laser 21 launch laser beam when Between point and obtain feedback electric signal time point, the determinand and institute are calculated according to the time difference can at two time points State the distance between range unit.Within this period, laser beam with the light velocity the determinand and the range unit it Between come and go and advance, the half of the product of the time difference and the light velocity is to be measured between the determinand and the range unit Distance.

In the present embodiment, the smooth surface of the light-emitting area of generating device of laser and photoelectric conversion device can all be arranged at shell External surface (such as housing left surface 13), generating device of laser 21 launch laser beam as measuring beam from light-emitting area 211；Photoelectricity Conversion equipment 22 captures the reflection light of outside by smooth surface 221.Because laser beam is put down where light-emitting area 211 all the time Face, therefore light-emitting area 211 can be used for helping user to aim at determinand；So that laser beam can be with direct irradiation to determinand Ensure reflecting effect, the plane preferably shone directly on determinand, and as far as possible make laser beam can with vertical irradiation to the plane, The former road of more light can be so allowd to be reflected back range unit so that measurement result is more accurate.

In the present embodiment, the central point of the central point and smooth surface 221 of light-emitting area 211 is located along the same line, light-emitting area 211 is nearer with the distance of smooth surface 221, and error is smaller.In theory, if light-emitting area 211 and the central point of smooth surface 221 are complete Full weight is closed, and error is minimum, but difficult to realize at present.

Generally, the area of smooth surface 221 is 3~10 times of the area of light-emitting area 211, because radiating laser beams are gone out When can be always maintained at straight line traveling, but after being reflected on determinand surface, if determinand is not reflecting effect pole Good minute surface, even if laser beam can irradiate on the test object perpendicular to determinand surface, it is also difficult to which ensureing can be former after reflecting Road returns to the light intensity and quantity near light-emitting area 211.Therefore, suitably expanding the area of smooth surface 221 can further carry High measurement accuracy, improve feedback sensitivity.

As shown in figure 8, circuit board 23 is parallel with the first housing bottom surface 111, with generating device of laser 21, photoelectric conversion device 22 are located at sustained height, and generating device of laser 21, photoelectric conversion device 22 are located at the left side or right side of circuit board 23；Laser occurs Device 21, photoelectric conversion device 22 are with circuit board 23 all above or below power supply 26.In the present embodiment, laser fills The small volume of 21, photoelectric conversion device 22 is put, sufficient space is left in its identical height and places circuit board 23, so as to effective Reduce the integral thickness of the range unit, meanwhile, cover top portion can be designed as arc, rather than square, can effectively subtract Miscellaneous goods volume, space-consuming is reduced, it is easily facilitated carrying.

In other embodiments, circuit board 23 can be set up in parallel with power supply 26 in sustained height, positioned at a left side for power supply 26 Side or right side.

As shown in Fig. 3, Fig. 6 and Fig. 7, the present embodiment also includes display device 24, access panel 27 and display device installation Support 28.

Access panel 27 is made up of transparent material, located at the first housing 11 and/or the surface of the second housing 12, to protect display Device 24.Display device mounting bracket 28 is protruded inwardly from the first housing bottom surface 111 and the first housing sidewall 112, and with observation Plate 27 is oppositely arranged.Display device 24 is parallel with access panel 27, and is attached to display device mounting bracket 28.In the present embodiment, 24 preferred display screen of display device, is connected to processor 231, for showing the distance of the determinand and the range unit.

The angle of plane residing for access panel 27 and the base plane of shell 1 is 30~60 degree；Plane residing for display device 24 with The angle of the base plane of shell 1 is 30~60 degree.Display device 24, access panel 27 are obliquely installed, and cover top portion can be set Arc is calculated as, space-consuming can be further reduced, more conform to human hand shape, range unit is easily facilitated carrying.

As shown in Fig. 1, Fig. 8 and Figure 10, in the present embodiment, operation device 25 include button 251, operation circuit plate 252 and By compressing switch 253.

Operation circuit plate 252 is fixed to the first housing bottom surface 111 parallel to circuit board 23；The electricity of operation circuit plate 252 Processor 231 is connected to, for sending at least one control instruction to laser ranging system 21.By compress switch 253 located at operation Close to the side of the first housing bottom surface 111 on circuit board 252；Button 251 passes through the first housing bottom surface 111, and its one end is connected to By compressing switch 253, its other end is located at the outer surface of the first housing 11.

As shown in Figure 10, the first housing bottom surface 111 includes button mounting hole 1111 and mounting hole groove 1112, button installation The first housing bottom surface is run through in hole 1111；Mounting hole groove 1112 is located at the edge of button mounting hole 111.Button 251 includes button Body 2511 and button fixture block 2512, keying body 2511 is column, through button mounting hole 1111；Button fixture block 2512 protrudes In the edge of keying body 2511, it is caught in mounting hole groove 1112.When keying body 2511 is pressed, button fixture block 2512 slide in the mounting hole groove 1112,252 are also pressed by compressing switch, circuit board obtains an electric signal.

Button 251 is used at least one control action of typing, the corresponding control instruction of each control action.Work as button 251 when being pressed to input a control instruction, 253 is pressed by compressing switch, and operation circuit plate 252 is by the control action At least one electric signal is converted to, and the number being pressed according to button transmits an electric signal comprising control instruction to processing Device 231；The corresponding control instruction of each electric signal.In the present embodiment, corresponding two control instructions of button 251, that is, start Instruction and out code, for starting, closing range unit.

Operate and use for the ease of user, the access panel 27 and display device 24 in the present embodiment are preferably disposed to housing 1 The technical scheme of upper surface, the can of bowing of user one see display device 24, the range unit easy to operation, and read and treat Ranging from reading.Button 251 facilitates user to be pressed with thumb it in the middle part of the outer surface of the first housing bottom surface 111. Display device 24 and operation device 25 can be with integrated designs, namely using touch-screen, while realize operational control function and reading Number display function.Because touch-screen cost is higher, this scheme is in the application also by a definite limitation.

Power supply 26 can be a button battery, a cuboid battery or two cylinder electricity being set up in parallel Pond.Button battery small volume, space-consuming are also small, can effectively smaller range unit volume, but button battery Electricity is smaller, and user needs frequently replacing battery, use cost higher.Cuboid battery, cylindrical cell compare button battery Electricity it is bigger, battery altering is less, can reduce use cost, but volume is larger, carry use it is more inconvenient.It is described rectangular Body battery, the cylindrical cell all can be rechargeable battery, so as to further reduce use cost.In the present embodiment, electricity 26 preferred cylindrical cell of source.

As shown in Figure 11~13, tape structure 3 includes tape measure wheel 31, tape 32, band outlet 33, the locking key 35 of briquetting 34 And shell fragment 37.Wherein, the locking key 35 of briquetting 34 and shell fragment 37 are collectively forming locking mechanism, for that will extend out to outside shell 1 The tape length locking in portion, so as to reading.

Tape measure wheel 31 is turnably installed in tape measure cavity 14；Tape 32 is all or part of to be wound on tape measure wheel 31； One end of tape 32 is fixedly attached to tape measure wheel 31, and its other end is provided with ruler end part 36.Band outlet 33 is located at the side wall of shell 1 Lower end, ruler end part 36 are stretched out outside shell 1 by band outlet 33；Briquetting 34 works as tape in housing 1 and at band outlet 33 32 from housing 1 when being pulled out, and briquetting 34 can be used for compressing tape 32 so that length holding of the tape 32 housing 1 outside is not Become；The one end of shell fragment 37 is connected to briquetting 34, and its other end is connected to the second housing 12, for aiding in briquetting 34 to reply original position Put；Locking key 35 is connected to second housing or the 3rd housing by elastic component (preferably little spring)；For controlling briquetting 34 Compress or loosen tape 33.

The one end of locking key 35 is located at the outer surface of the second housing 12, and its other end and briquetting 34 are tangent or mutually to control Briquetting 34 compresses or loosened tape 32.When locking key 35 is pressed, locking key 35 and briquetting 34 are tangent, and briquetting 34 loosens chi Band 32；When locking key 35 is released, locking key 35 is with the phase of briquetting 34 from briquetting 34 compresses tape 32.User can by by Pressure or relieving locking key 35 realize the control to tape extension elongation, so as to locking ruler band extension elongation, facilitate reading.

Tape measure wheel 31 be turnably installed in tape measure cavity 14, in particular to, the middle part of the second housing bottom surface 121 is provided with one Prominent axostylus axostyle 38, perpendicular to the second housing bottom surface 121；The center of tape measure wheel 31 is provided with a sets of holes 311, is sheathed on outside axostylus axostyle 38 Portion；When tape 32 is pulled outward, tape measure wheel 31 rotates.

Tape structure 3 can also be any tape measure of the prior art.Tape structure 3 at work, utilizes chi end Portion 36 pulls out tape 32 out of housing 1, to complete to measure., it is necessary to press locking key 35 after measurement, the briquetting 34 in it is pressed Tight tape 32 so that length of the tape 32 outside housing 1 keeps constant, so as to the length registration for being able to read in tape 32. In the present embodiment, locking key 35 is a button located at the bottom surface 16 of housing 1, and after pressing for the first time, briquetting 34 compresses tape 32；After reading length value, after pressing again, briquetting 34 loosens tape 32, and after length registration is read, tape 32 is shunk To housing 1.

Tape structure 3 is preferably as follows scheme, and the width of tape 32 is less than or equal to 2 centimetres, preferably 1 centimetre；Tape 32 Length is less than or equal to 2 meters, effectively reduces the volume of tape 32 being wrapped on tape measure wheel 31, reduces tape 32 and is filled in ranging The space of interior occupancy is put, reduces the width of range unit.Combination for generating device of laser 21 and photoelectric conversion device 22 comes Say, if determinand, more than 2 meters, its measurement accuracy can be of a relatively high, therefore the tape length of tape measure reaches 2 meters and may be such that this Embodiment is applied to various scenes.

As shown in Fig. 2 the leading flank 11 of housing 1 is additionally provided with a clip 5, user can be filled the ranging using clip 5 Put on the belt for being clipped in loins, be easy to carry.

The present embodiment has technical effect that, there is provided a kind of range unit, laser range finder and tape structure is arranged at In same shell so that range unit is provided simultaneously with the function of long range ranging and short distance ranging；It is convenient, flexible, have compared with High measurement accuracy.The present embodiment state range unit height and width it is approximate with ordinary tape measure, space-consuming is smaller, facilitates people Hand grips, and is easy to the operation and use of user at work.

Described above is only preferred embodiment of the present utility model, on the premise of the utility model principle is not departed from, this The those of ordinary skill of technical field can also make some improvements and modifications, these improvements and modifications to above-mentioned technical proposal It should be regarded as the scope of protection of the utility model.

Claims (16)

1. A kind of 1. range unit, it is characterised in that including

   Shell, it is combined into by the first housing and the second housing；

   3rd housing, a tape measure chamber is surrounded between first housing and second housing, and with second housing Body；

   Tape structure, in the tape measure cavity；And

   Laser ranging system, between first housing and the 3rd housing.
2. 2. range unit as claimed in claim 1, it is characterised in that

   First housing includes the first housing bottom surface and the first housing sidewall；

   Second housing includes the second housing bottom surface and the second housing sidewall；

   3rd housing includes the 3rd housing bottom surface and the 3rd housing sidewall；

   Second housing sidewall is connected to each other with first housing sidewall, is combined into the side wall of the shell；

   3rd housing sidewall is connected to second housing bottom surface.
3. 3. range unit as claimed in claim 2, it is characterised in that also include

   Overcoat, partly or entirely it is coated on first housing sidewall and second housing sidewall；And/or

   Partly or entirely it is coated on first housing bottom surface and the first housing sidewall junction.
4. 4. range unit as claimed in claim 1, it is characterised in that the laser ranging system includes

   Generating device of laser, for emission measurement light beam to determinand；The determinand reflects the measuring beam, generation reflection Light；

   Photoelectric conversion device, for capturing all or part of reflection light, the optical signal of the reflection light captured is turned It is changed at least one feedback electric signal；

   Circuit board, the circuit board are provided with processor；And

   Power supply, it is connected to the generating device of laser, the photoelectric conversion device and the circuit board；

   Wherein, the processor is connected to the generating device of laser, for controlling the generating device of laser；

   The processor is connected to the photoelectric conversion device, for obtaining the feedback electric signal, and calculates the determinand With the distance of the range unit.
5. 5. range unit as claimed in claim 4, it is characterised in that

   The generating device of laser includes light-emitting area, is recessed in the first housing sidewall；

   The photoelectric conversion device includes smooth surface, is recessed in the first housing sidewall, and adjacent with the light-emitting area.
6. 6. range unit as claimed in claim 4, it is characterised in that

   The circuit board is parallel with the first housing bottom surface；

   The generating device of laser, the photoelectric conversion device are with the circuit board all above or below the power supply；

   The generating device of laser, the photoelectric conversion device are located at the left side or right side of the circuit board.
7. 7. range unit as claimed in claim 4, it is characterised in that

   The circuit board is located at the left side or right side of the power supply；

   The circuit board is parallel with the first housing bottom surface.
8. 8. range unit as claimed in claim 4, it is characterised in that also include

   Access panel, it is made up of transparent material, located at first housing and/or the second surface of shell；

   Display device mounting bracket, protrude inwardly from the first housing bottom surface and the first housing sidewall, and it is relative with the access panel Set；And

   Display device, it is parallel with the access panel, and it is attached to the display device mounting bracket；The display device is connected to The processor, for showing the distance of the determinand and the range unit.
9. 9. range unit as claimed in claim 8, it is characterised in that

   The angle of plane residing for the access panel and the outer casing bottom plane is 30~60 degree；

   The angle of plane residing for the display device and the outer casing bottom plane is 30~60 degree.
10. 10. range unit as claimed in claim 4, it is characterised in that also include

    Operation circuit plate, parallel to the circuit board, and it is fixed to the first housing bottom surface；The operation circuit plate is electrically connected to institute State processor；

    By compressing switch, close to the side of first housing bottom surface on the operation circuit plate；And

    Button, through the first housing bottom surface, its one end is connected to described by compressing switch, and its other end is external located at the first shell Surface.
11. 11. range unit as claimed in claim 10, it is characterised in that

    First housing bottom surface includes

    Button mounting hole, through the first housing bottom surface；And

    Mounting hole groove, located at the button mounting hole edge；

    The button includes

    Keying body, it is column, through the button mounting hole；And

    Button fixture block, protrude from the keying body edge；It is caught in the mounting hole groove.
12. 12. range unit as claimed in claim 4, it is characterised in that the circuit board is provided with

    Memory, it is connected to the processor；For storing the distance of the determinand and the range unit.
13. 13. range unit as claimed in claim 4, it is characterised in that

    The generating device of laser includes but is not limited to laser tube；

    The photoelectric conversion device includes but is not limited to photoelectric sensor；

    The power supply includes but is not limited to button battery, cuboid battery or cylindrical cell.
14. 14. range unit as claimed in claim 1, it is characterised in that the tape structure includes

    Tape measure wheel, turnably it is installed in the tape measure cavity；

    Tape, completely or partially it is wound on the tape measure wheel；One end of the tape is fixedly attached to the tape measure wheel, and its is another One end is provided with ruler end part；And

    Band outlet, located at the side wall lower ends of the shell, the ruler end part is stretched out outside the shell by the band outlet.
15. 15. range unit as claimed in claim 14, it is characterised in that

    An axostylus axostyle protruded is provided with the middle part of second housing bottom surface, perpendicular to second housing bottom surface；

    The tape measure wheel center is provided with a sets of holes, is sheathed on outside the axostylus axostyle；

    When the tape is pulled outward, the tape measure wheel rotates.
16. 16. range unit as claimed in claim 14, it is characterised in that the tape structure also includes

    Briquetting, in the tape measure cavity and at the band outlet；

    Shell fragment, its one end are connected to briquetting, and its other end is connected to second housing；And

    Locking key, second housing or the 3rd housing are connected to by elastic component；Described locking key one end is located at described second Housing outer surface, its other end and the briquetting it is tangent or mutually from；

    When the locking key is pressed, the locking key and the briquetting are tangent, and the briquetting loosens the tape；

    When the locking key is released, the locking key is with the briquetting mutually from the briquetting compresses the tape.