CN201342230Y

CN201342230Y - Line-drawing range finder

Info

Publication number: CN201342230Y
Application number: CNU2008202352240U
Authority: CN
Inventors: 邹海南
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-22
Filing date: 2008-12-22
Publication date: 2009-11-11
Anticipated expiration: 2018-12-22

Abstract

The utility model provides a line-drawing range finder, belonging to the field of sports equipment. The line-drawing range finder comprises a pushrod and a rolling panel, wherein the internal part of the rolling panel is a cavity. The pushrod is connected with the rolling panel through a support. The support is fixedly connected with the pushrod and movably connected with the rolling panel. A contact counter is fixed on the support. A contact blade is fixed on one side of the rolling panel and can be in contact with the contact counter. A digital display screen is fixed on the pushrod and electrically connected with the contact counter. A plurality of small holes are arranged on the rolling panel in the circumferential direction. The utility model has the advantages that the line or the curve is drawn on the ground through the rolling of the rolling panel, the range of the line or the curve is measured through the contact counter and the digital display screen while the rolling panel is rolling, the angle can be measured, the structure is simple, the operation is convenient and the popularization and application value is very good.

Description

A kind of setting-out rangefinder

Technical field

The utility model belongs to the sports equipment field, relates in particular to a kind of setting-out rangefinder.

Background technology

To divide different place (will divide different competition area) as required in a lot of occasions as school sports, setting-out temporarily, the line that the place that has especially need be drawn as curve or form an angle, generally be by the P.E. teacher by rule of thumb in setting-out, trouble nor accurately not only; At present people's instrument of being used for measuring length distance mostly is ruler, tape measure, lining rope etc. greatly, because the limited length of these instruments, measure long apart from the time, need displacement repeatedly, behind the areal survey, the accumulative total addition just can obtain the result, troublesome poeration is wasted time and energy, and accuracy is not high, just more difficult when measuring length of curve, error is also bigger.

In addition, the equipment that carries out setting-out, range finding in the prior art mainly contains following three kinds:

1, rolling rangefinder (the 19th national teenager's scientific and technical innovation contest first prize in 2004): this product only has the function of the range finding of rolling, but can not setting-out, can not angle measurement, can not guarantee that the path of rolling is accurate, so measure error is big, retreats easily when misoperation is skidded and make to measure and the big problem of error occurs;

2, (patent No.: CN03268560.2): what this product used is gear counter to the roller rangefinder, the manufacturing technology complexity, the cost height, and the function that only has the range finding of rolling, can not setting-out, can not angle measurement, can not guarantee that the path of rolling is accurate, so measure error is big, retreats easily when misoperation is skidded and make to measure and the big problem of error occurs;

3, (patent No.: CN92225056.1): this product is a kind of sports place scriber that has powder distribution device, guider and agitating device to place scriber, powder distribution device is made up of hopper, bogie wheel, cloth powder roller and handle, this product only has the function of setting-out, but can not find range, can not angle measurement, can not guarantee that the path of rolling is accurate, therefore the line that is drawn is also inaccurate, retreat easily when similarly, misoperation is skidded and make to measure and the big problem of error occurs.

The utility model content

The purpose of this utility model be to provide a kind of can setting-out, can find range again, the setting-out rangefinder of angle measurement.

The utility model is to realize like this, a kind of setting-out rangefinder, comprise that a push rod and an inside are the rolling disk of cavity, be connected by a support between described push rod and the rolling disk, fixedly connected between described support and the push rod, flexibly connect between described support and the rolling disk, be installed with a contact counter on the described support, be installed with a contact that can contact on described rolling disk one side with described contact counter, be installed with a digital display screen that is electrically connected with described contact counter on the described push rod, its circumferencial direction of described rolling disk upper edge offers some apertures.

Offer the groove of an annular along the circumferencial direction of described rolling disk, described aperture evenly is opened in the described groove.

But also be arranged with the dislocation loop of the described aperture of a shutoff in the described groove.

The setting-out powder is housed in the cavity of described rolling disk, offers a powder input port that can be communicated with on the described rolling disk with described cavity.

The outer circumference of described rolling disk is 1 meter.

Described rolling disk fixed cover is located on the bearing pin, flexibly connects between described bearing pin and the support.

Be provided with a counter-rotating limiter between described bearing pin and the support, described counter-rotating limiter comprises that one is fixedly arranged on arc plate and on the described support and is fixedly arranged on shell fragment on the described bearing pin.

Be provided with a compass that indicates the number of degrees between described push rod and the support, described compass can freely rotate on described push rod.

Be installed with a compass that indicates the number of degrees on the described compass.

Described push rod is provided with 2 first infrared laser probes free to rotate and second infrared laser probe.

When the utility model utilizes rolling disk to roll on the ground cloth draw straight line or camber line, when rolling, rolling disk utilize electric shock counter and digital display screen to measure the distance of straight line or curve, can also take measurement of an angle simultaneously, simple in structure, easy to operate, have the excellent popularization using value.

Description of drawings

Fig. 1 is the front view of the setting-out rangefinder that provides of the utility model embodiment;

Fig. 2 is the left view of the setting-out rangefinder that provides of the utility model embodiment;

Fig. 3 is that A-A among Fig. 2 is to view;

Fig. 4 is that B among Fig. 2 is to view.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Consult Fig. 1～shown in Figure 4, a kind of setting-out rangefinder that the utility model embodiment provides, comprise that a push rod 1 and an inside is equipped with the rolling disk 2 of setting-out powder, be connected by a support 3 between described push rod 1 and the rolling disk 2, fixedly connected between described support 3 and the push rod 2, flexibly connect between described support 3 and the rolling disk 2, on described support 3, be installed with a contact counter 4, be installed with on described rolling disk 2 one sides one can with the contact 41 contacted contacts 21 of described contact counter 4, be installed with a digital display screen 5 that is electrically connected with described contact counter 4 on the described push rod 1, be connected by lead 42 between described contact counter 4 and the digital display screen 5; Its circumferencial direction of described rolling disk 2 upper edges evenly offers some apertures 22, and when rolling disk 2 rolled forward, the setting-out powder can be emitted from this aperture 22.

Particularly, offer a toroidal cavity 23 along described rolling disk 2 circumferencial directions, described aperture 22 is opened in the described groove 23, but also be arranged with the dislocation loop 24 of the described aperture 22 of a shutoff in the described groove 23, described dislocation loop 24 width should be less than 1/2nd of the width of groove 23, move this dislocation loop 24 with hand, can make it that the axis direction along rolling disk 2 moves in groove 23, thereby realize the function of conducting or shutoff aperture 22; Described rolling disk 2 inside are the cavity of the placed setting-out powder of a hollow, setting-out powder in this cavity can be emitted from aperture 22, offer a powder input port 25 that is communicated with described cavity on the described rolling disk 2, opening this powder input port 25 can add the setting-out powder in the cavity; 2 end faces of described rolling disk 2 all are marked with 0～10 decimeter scale value, specifically can be as accurate as 1 centimetre, the outer circumference of described rolling disk 2 is 1 meter a integral multiple, the outer circumference of rolling disk described in the present embodiment 2 is specially 1 meter, when rolling disk 2 rotates a week, also just travelled forward 1 meter distance of rolling disk 2, meanwhile the contact on the rolling disk 2 21 is collided with the contact 41 of contact counter 4, will increase by 1 with the numeral on the digital display screen 5 that electric shock counter 4 is electrically connected, that is the distance values that digital display screen 5 shows increases by 1 meter, and the digital addition on numeral on the digital display screen 5 and the rolling disk 2 is measured distance value; Described rolling disk 2 fixed covers are located on the bearing pin 26, flexibly connect between described bearing pin 26 and the support 3, and concrete employing bearing (not shown) is connected between present embodiment bearing pin 26 and the support 3.

In addition, be provided with a compass 6 free to rotate and that indicate the number of degrees (0～360 °) between described push rod 1 and the support 3, be installed with a compass 7 that indicates the number of degrees (0～360 °) on the described compass 6, the zero graduation of described compass 7 aligns with zero graduation on the compass 6; Described push rod 1 is provided with 2 first infrared laser probe, 11 and second infrared laser probes 12 free to rotate, described first infrared laser probe 11 is mainly used in the collimation calibration of rolling disk 2 when travelling forward, and described second infrared laser probe 12 is mainly used in picture camber line or angular surveying.

Further, be provided with a counter-rotating limiter 8 between described bearing pin 26 and the support 3, described counter-rotating limiter 8 comprises that one is welded in arc plate 81 and on the described support 3 and is welded in shell fragment 82 on the described bearing pin 26, the front end 811 of arc plate 81, rear end 812 are respectively h1, h3 to the distance in the center of circle of bearing pin 26, shell fragment 82 is h2 (as shown in Figure 3) away from an end of bearing pin 26 to the distance in bearing pin 26 centers of circle, and h3＜h2＜h1; When rolling disk 2 is just changeing forward, because h2＜h3, shell fragment 82 enters the arc space of arc plate 81 from the front end 811 of arc plate 81, when shell fragment 82 turns to the rear end 812 of arc plate 81, because h2＞h3, to pressing down, shell fragment 82 successfully produces from the rear end 812 of arc plate 81 shell fragment 82 by the rear end 812 of arc plate 81, thereby has realized the normal rotation of rolling disk 2; And when rolling disk 2 reversed backward, when shell fragment 82 was inverted to the rear end of arc plate 81, because h2＞h3, shell fragment 82 was stuck on the arc plate 81, thereby has stoped the counter-rotating of rolling disk 2.

The concrete use of setting-out rangefinder provided by the utility model is as follows:

(1) draws straight line: move dislocation loop 24 with hand, open aperture 22, first infrared laser probe of regulating then on the push rod 1 11 makes its infrared ray that sends on the ground in this setting-out rangefinder dead ahead, the user only need follow first infrared laser probe, 11 infrared rays that send to promote rolling disk 2 forward, can guarantee to travel forward according to straight line, in motion, the setting-out powder spills from aperture 22, thereby has realized the setting-out function of setting-out rangefinder;

When after the setting-out rangefinder need being rotated certain α angle, continuing the picture straight line, rotating compass 6 makes the extended line of the pointer 61 of compass pass the axle center of push rod 1, because compass 7 is fixed on the compass 6, and the zero graduation of compass 7 aligns with zero graduation on the compass 6, and the line between the axle center of the zero graduation of compass 7 and push rod 1 has just formed a datum line; Then, if the certain α angle of the setting-out rangefinder need being turned left continues setting-out, then with the compass 6 α angle of corresponding rotation correspondence to the right, otherwise then with the compass 6 α angle of corresponding rotation correspondence left; Next, the setting-out rangefinder that turns left when the extended line of the pointer 61 of compass passes the axle center of push rod 1 once more, has promptly been realized the setting-out rangefinder α angle that turned left; First infrared laser probe of regulating then on the push rod 1 11 makes its infrared ray that sends on the ground in setting-out rangefinder dead ahead, user and then first infrared laser probe, 11 infrared rays that send promotes rolling disk 2 forward, can guarantee that the straight line after rolling disk 2 is according to rotation α angle travels forward, in motion, the setting-out powder spills from aperture 22, thereby has realized the setting-out function of setting-out rangefinder.

(2) draw camber line: the angle of contingence of setting camber line to be painted is Y °, move dislocation loop 24 with hand, open aperture 22, first infrared laser probe of regulating on the push rod 1 11 makes its infrared ray that sends on the ground in this setting-out rangefinder dead ahead, writes down and aims at this first infrared laser probe 11 ultrared scale value X that send on compass this moment; Regulating second infrared laser probe 12 then is aligned on the scale value of the X ± Y on the compass 6 its infrared ray that sends, and then second infrared laser probe, 12 infrared rays that send promote rolling disk 2 forward then, in motion, the setting-out powder spills from aperture 22, so just can draw needed camber line.

(3) range finding from: move dislocation loop 24 with hand, close aperture 22, method according to above-mentioned setting-out makes the path motion of setting-out rangefinder according to appointment, because the outer circumference of rolling disk 2 is 1 meter, rolling disk 2 revolutions move a week, also just travelled forward 1 meter distance of rolling disk 2, meanwhile the contact on the rolling disk 2 21 is collided with the contact 41 of contact counter 4, will increase by 1 with the numeral on the digital display screen 5 that electric shock counter 4 is electrically connected, that is the distance values that digital display screen 5 shows increases by 1 meter; Motion is when stopping, and the numeral that shows on the digital display screen 5 and the numerical value addition of rolling disk 2 sides are the distance of being surveyed, and the range finding of this setting-out rangefinder from precision can be as accurate as 1 centimetre.

(2) angle measurement degree: move dislocation loop 24 with hand, close aperture 22, first infrared laser probe of regulating on the push rod 1 11 makes its infrared ray that sends aim at article one limit for the treatment of angle measurement, and mobile simultaneously compass 6 makes first infrared laser probe, 11 infrared rays that send also aim at the zero graduation of this compass 6; Second infrared laser probe of regulating then on the push rod 1 11 makes the second limit of its infrared ray that sends towards angle to be measured, next along this second limit second infrared laser probe, 11 infrared rays that send are moved on the compass 6, the pairing scale value of second infrared laser probe 11 infrared rays that send is the angle for the treatment of angle measurement, and the certainty of measurement of this setting-out rangefinder can be as accurate as 1 °.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of setting-out rangefinder, comprise that a push rod and an inside are the rolling disk of cavity, be connected by a support between described push rod and the rolling disk, fixedly connected between described support and the push rod, flexibly connect between described support and the rolling disk, it is characterized in that: be installed with a contact counter on the described support, be installed with a contact that can contact on described rolling disk one side with described contact counter, be installed with a digital display screen that is electrically connected with described contact counter on the described push rod, its circumferencial direction of described rolling disk upper edge offers some apertures.

2, setting-out rangefinder as claimed in claim 1 is characterized in that: offer the groove of an annular along the circumferencial direction of described rolling disk, described aperture evenly is opened in the described groove.

3, setting-out rangefinder as claimed in claim 2 is characterized in that: but also be arranged with the dislocation loop of the described aperture of a shutoff in the described groove.

4, setting-out rangefinder as claimed in claim 1 is characterized in that: the setting-out powder is housed in the cavity of described rolling disk, offers a powder input port that can be communicated with described cavity on the described rolling disk.

5, setting-out rangefinder as claimed in claim 1 is characterized in that: the outer circumference of described rolling disk is 1 meter a integral multiple.

6, setting-out rangefinder as claimed in claim 1 is characterized in that: described rolling disk fixed cover is located on the bearing pin, flexibly connects between described bearing pin and the support.

7, setting-out rangefinder as claimed in claim 6 is characterized in that: be provided with a counter-rotating limiter between described bearing pin and the support, described counter-rotating limiter comprises that one is fixedly arranged on arc plate and on the described support and is fixedly arranged on shell fragment on the described bearing pin.

8, setting-out rangefinder as claimed in claim 1 is characterized in that: be provided with a compass that indicates the number of degrees between described push rod and the support, described compass can freely rotate on described push rod.

9, setting-out rangefinder as claimed in claim 8 is characterized in that: be installed with a compass that indicates the number of degrees on the described compass.

10, setting-out rangefinder as claimed in claim 1 is characterized in that: described push rod is provided with 2 first infrared laser probes free to rotate and second infrared laser probe.