CN210374896U

CN210374896U - Rolling distance measuring device

Info

Publication number: CN210374896U
Application number: CN201921411512.1U
Authority: CN
Inventors: 虞攀; 赵邢龙; 陈镇; 刘佳磊
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-04-21
Anticipated expiration: 2029-08-28

Abstract

The utility model relates to the technical field of distance measurement, and specifically discloses a rolling distance finder. The rolling distance finder comprises a U-shaped fixed shell, a roller installed at the opening of the U-shaped fixed shell, an encoder installed coaxially with the roller, and The microcontroller and the display are installed on the U-shaped fixed shell, wherein: the shaft of the encoder is fixed with the roller, and the rotation of the roller drives the shaft to rotate synchronously; the microcontroller is electrically connected with the encoder and the display respectively. The rolling distance finder of the utility model has the advantages of simple structure, easy operation and low cost, and can measure the distance under non-linear and non-planar trajectories such as bending, rotation, corner, etc., so it is not affected by the measurement environment and has a wide range of application; , can achieve higher ranging accuracy, realize long-distance distance measurement, and the measurement results are more satisfactory.

Description

Rolling distance measuring device

Technical Field

The utility model relates to a range finding technical field especially relates to a roll distancer.

Background

When people measure distances, the tape measure and other solid rulers are commonly used, and are made of soft or easily curled materials for convenient storage, but the length of the ruler is limited, the ruler needs to be segmented for measurement under the condition of long measurement length, and a measurer needs to judge whether scale marks are aligned by naked eyes and has the possibility of estimation, so that the precision of the measurement result is reduced, and the measurement result is further influenced if the measurement environment is complex. In addition, a common distance measurement mode is a laser (infrared) distance measuring instrument which is expensive, the measurement principle is that distance measurement is carried out by adopting a light transmission mode, no obstacle can block light transmission between a starting point and an end point, and an obstacle is required to block light at the end point to form a measurement end point.

SUMMERY OF THE UTILITY MODEL

To the technical problem among the prior art, the utility model provides a roll distancer.

The utility model provides a roll distancer, roll distancer includes U type set casing, installs the gyro wheel at U type set casing open position, with gyro wheel coaxial arrangement's encoder to and install microcontroller and the display on U type set casing, wherein: a rotating shaft of the encoder is fixed with the roller, and the roller rotates to drive the rotating shaft to rotate synchronously; the microcontroller is electrically connected with the encoder and the display respectively.

Furthermore, the device also comprises a zero clearing key arranged on the U-shaped fixed shell, and the zero clearing key is electrically connected with the microcontroller.

Furthermore, the roller is marked with scales.

Further, the encoder is a WDD35D-4 conductive plastic angular displacement sensor.

Furthermore, the device also comprises a finger ring buckle arranged on the U-shaped fixed shell.

Furthermore, an operating rod is arranged on the U-shaped fixed shell.

Furthermore, one end of the operating rod is integrally installed with the U-shaped fixed shell through a groove or a convex column arranged on the U-shaped fixed shell.

Furthermore, the groove or the convex column is provided with threads.

Furthermore, a fixing pile is arranged on the groove or the convex column.

Furthermore, the other end of the operating rod is provided with a handheld handle.

The rolling distance measuring device of the utility model has simple structure, easy operation and low cost, can measure the distance under the non-linear and non-planar tracks of bending, rotation, turning and the like, is not influenced by the measuring environment and has wide application range; on the other hand, the method can achieve higher distance measurement precision, realize long-distance measurement and ensure a more satisfactory measurement result.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural design diagram of a rolling distance meter according to an embodiment of the present invention;

fig. 2 is another structural design diagram of a rolling distance meter according to an embodiment of the present invention;

fig. 3 is an electrical connection diagram of a rolling distance meter according to an embodiment of the present invention;

fig. 4 is a further structural design diagram of a rolling distance meter according to an embodiment of the present invention;

wherein: the device comprises a 1-U-shaped fixing frame, 2-rollers, 3-encoders, 301-rotating shafts, 302-encoder bodies, 4-microcontrollers, 5-displays, 6-zero clearing keys, 7-finger ring buckles, 8-operating rods, 9-grooves and 10-handheld handles.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses roll distancer, as shown in fig. 1 to fig. 3, roll distancer includes U type set casing 1, installs gyro wheel 2 at 1 open position of U type set casing, with gyro wheel 2 coaxial arrangement's encoder 3 to and install microcontroller 4 and display 5 on U type set casing 1, wherein: a rotating shaft 301 of the encoder 3 is fixed with the roller 2, and the roller 2 rotates to drive the rotating shaft 301 to rotate synchronously; as shown in fig. 3, the microcontroller 4 is electrically connected to the encoder 3 and the display 5, respectively. Encoder 3 in this embodiment includes pivot 301 and encoder body 302, pivot 301 is installed on encoder body 302, the usage of encoder 3 lies in that encoder body 302 counts with the number of turns of rotation according to pivot 301, when roll distancer actual measurement, gyro wheel 2 rolls according to measuring distance or measuring track, gyro wheel 2 and encoder 3's pivot 301 coaxial rotation, encoder body 302 is fixed as an organic whole mutually with U type set casing 1, encoder body 302 counts the number of turns of rotation of pivot 301, and then realize counting gyro wheel 2's the number of turns of rotation, because gyro wheel 2 has fixed diameter, then gyro wheel 2's girth can be calculated and obtain, calculate the length that gyro wheel 2 rolled the track according to gyro wheel 2's the number of turns of rotation again, thereby obtain the measuring result of distance. The microcontroller 4 in this embodiment calculates the distance measurement result according to the counting result of the encoder 3 and the diameter value of the roller 2, and displays the distance measurement result through the display 5, and the display 5 can also display the counting result of the encoder 3 and the like.

The U type set casing 1 in this embodiment can adopt the higher plastics material of hardness to make, with

gyro wheel

2 and 3 coaxial arrangement of encoder between U type structure, encoder body 302 is fixed in a side of U type set casing 1, and pivot 301 one end is installed on encoder body 302, and the other end passes the axis of gyro wheel 2 and installs the another side at U type set casing 1, keeps the axis and the pivot 301 of encoder body 302, pivot 2 on same straight line. The other end of pivot 301 is installed in the another side of U type set casing 1, plays firm effect for gyro wheel 2 rotates, and this embodiment does not restrict the detail structure of U type set casing 1, and the distance between its U type structure can refer to gyro wheel 2 and encoder 3's thickness and design, and the degree of depth of U type structure is then looked gyro wheel 2 diameter and is designed. The U-shaped fixing shell 1 may be designed as shown in fig. 1, and the cross section of the U-shaped fixing shell is U-shaped or fan-shaped, and those skilled in the art may also design other shells with a U-shaped opening structure, which is not listed here. The U-shaped fixing shell 1 can be made of transparent plastic, and the microcontroller 4 and the display 5 are embedded in the U-shaped fixing shell, so that the checking of numerical values is not influenced, and the microcontroller 4 and the display 5 can be protected.

The roller 2 in this embodiment realizes the distance measurement and calculation by setting the diameter and counting the number of rolling turns of the roller, the diameter value of the roller 2 is not limited in this embodiment, and the roller 2 can be specifically designed according to the use requirement, for example, the diameter of the roller 2 can be designed to be relatively small under the condition of short distance measurement, and the diameter of the roller 2 can be designed to be large if the distance measurement is long. Preferably, the diameter of the roller 2 in this embodiment is slightly larger than that of the encoder body 302, so that the roller 2 will not generate friction force on the encoder body 302 when rolling on the measuring surface. The roller 2 in the embodiment is also provided with scales, and the roller 2 is rotated to the zero position of the scales for measurement during measurement, so that the measurement accuracy is further ensured.

The encoder 3 in this embodiment may employ a WDD35D-4 conductive plastic angular displacement sensor. The angular displacement sensor of conductive plastics is a displacement sensor which uses voltage output and shaft rotation angle as linear relation, and features high precision, long service life and good output smoothness. The angular displacement sensor mainly comprises a conductive plastic base body, an electric brush, a follow-up shaft, a shell and the like, and is of a single connection type, a double connection type and a multiple connection type, electric signal leading-out generally adopts a wiring terminal form, the measuring range is 0-360 degrees, the output voltage range is related to input voltage, the output precision is 1mv, the measuring precision is 0.1 degree, and the independent linearity is 0.1 percent. The angular displacement sensor adopts the principle of a resistor voltage divider, constant direct-current voltage is connected to two ends of a resistor guide rail, output is obtained through movement of an electric brush on the guide rail, the output voltage and displacement are in a linear relation, indexes of the output voltage and the displacement are expressed by linearity, and the smaller the numerical value is, the higher the precision is. The displacement sensor manufactured by adopting the resistance divider principle can reduce the precision requirement on the total resistance of the guide rail, also reduce the requirement of the sensor on the use environment condition, improve the accuracy of the output signal of the sensor and be suitable for the condition that the requirement on the angle precision and the stability is high. The encoder body 302 of the encoder 3 selected by the scheme is cylindrical in shape, the rotating shaft 301 perpendicular to the surface is arranged in the center of the surface, the rotating shaft 301 penetrates through the roller 2 and then is installed on one side face of the U-shaped structure of the U-shaped fixing shell 1, the other side face of the U-shaped structure can be fixedly installed at the center of the other surface of the encoder body 302 in a welding mode, and finally the roller 2 and the encoder body 302 are coaxially installed between the U-shaped structures of the U-shaped fixing shell 1, and the axis of the encoder body is overlapped with the rotating shaft 301.

The microcontroller 4 in this embodiment may be implemented by using an STM32 series single chip microcomputer, for example, an STM32F103C8T6 chip, an STM32 series single chip microcomputer is based on an armport-M3 kernel specially designed for embedded application requiring high performance, low cost, and low power consumption, and has 512K internal Flash, 64K internal ARM, internal Flash supporting on-line programming (IAP), up to 80 IO (mostly compatible with 5V logic), 4 general timers, 2 advanced timers, 2 basic timers, 3 SPI interfaces, 2I 2S interfaces, 2I 2 interfaces, 5 USART and other rich resources, the STM32F103ZET6 chip has a relatively high cost performance, rich and flexible configuration, maximum integration, excellent real-time performance, easy development and low power consumption, has a very strong capability of processing calculation, and is suitable for a detection system requiring precise detection, and is very suitable for calculation of a distance, in a distance measurement process, the microcontroller 4 records an analog quantity output by an encoder 3, the analog quantity is converted into a digital quantity, and when the analog quantity is recorded as a total number of M19 d equivalent to M2, and is recorded as a total number of turns, when the number of M2 x 2 r reaches a threshold value of M19, and is recorded as a total number of M2 r equivalent to M equivalent to 2 equivalent to M equivalent to 2 equivalent to M equivalent to.

The display 5 in this embodiment can be implemented by OLED display, and the liquid crystal display has the characteristics of low power consumption, no radiation, flat right-angle display, stable and flicker-free image, large visible area, good picture effect, strong anti-interference capability, high response speed and the like. The resolution ratio is 256 multiplied by 64 points, the occupied I/O resources are less, the circular scanning is not needed, and a large amount of program expenses are saved. By combining the requirements of the scheme, the distance calculation result can be displayed quickly and stably. The OLED as the display 5 has high cost performance, high speed, simple interface, high resolution, and can output units of collected data in a better format.

In order to realize the normal operation of the rolling distance meter in this embodiment, the rolling distance meter further includes a power supply component, the power supply component is preferably implemented by a small-sized storage battery, and the specific parameters of the power supply component are not limited in this embodiment, and the setting may be performed according to the requirements of the microcontroller 4, the display 5 and the encoder 3 in this embodiment. The power supply component of the present embodiment is mounted on the U-shaped fixing case 1, and the specific position is not limited here.

The rolling distance measuring device of the embodiment has the advantages of simple structure, easy operation and low cost, and can measure the distance under the nonlinear and non-planar tracks of bending, rotation, corners and the like, so the rolling distance measuring device is not influenced by the measuring environment and has wide application range; on the other hand, the method can achieve higher distance measurement precision, realize long-distance measurement and ensure a more satisfactory measurement result.

Specifically, as shown in fig. 1 to 3, the rolling distance meter of the present embodiment further includes a clear button 6 disposed on the U-shaped fixed housing 1, and as shown in fig. 3, the clear button 6 is electrically connected to the microcontroller 4. Before each measurement, the counting of the encoder 3 is cleared when the previous measurement is required to be ensured, the encoder 3 is used for counting from the first circle during the measurement, after the clear button 6 of the embodiment is pressed, the microcontroller 4 controls the counting value of the encoder 3 to be zero, and then the rolling of the roller 2 is started to realize the measurement of the distance. The zero clearing key 6 of the embodiment is arranged on the outer surface of the U-shaped fixed shell 1, and is convenient for a measurer to operate.

Specifically, as shown in fig. 1 and fig. 2, the rolling distance meter of the present embodiment further includes a finger ring buckle 7 disposed on the U-shaped fixing shell 1. The measurer measures the distance by passing fingers through the finger ring buckles 7 and forcibly rotating the roller 2 forwards, the specific shape and number of the finger ring buckles 7 are not limited in the embodiment, the preferable design is an annular structure or a semi-annular structure, one or more fingers pass through the finger ring buckles 7, and the rolling distance meter is operated to measure the distance. As shown in fig. 1 and fig. 2, in the present embodiment, four finger ring buckles 7 with a semi-ring structure are designed on the outer surface of the U-shaped fixing shell 1. The middle finger, the ring finger and the little finger sequentially pass through the ring buckle 7, the rolling distance measuring device can be completely held in the hand, and the stability and the accuracy of the rolling distance measuring device can be greatly improved by performing rolling measurement.

Specifically, as shown in fig. 4, the rolling distance meter of the present embodiment further includes an operation rod 8 mounted on the U-shaped fixing housing 1. When the distance measurement is carried out to the rolling distancer on the higher measuring face in position in this embodiment, it is very suitable to directly insert finger latch closure 7 in with the dactylotheca operation, but if measuring the face position lower, for example when measuring the ground, adopt the finger to embolia the mode of the operation of finger latch closure 7 and just can not have fine experience sense, so the present case has still designed the action bars 8 of mountable on U type set casing 1, through the extension effect of action bars 8, the other end of the handheld action bars 8 of user in addition, just can realize the operation to the rolling distancer, and then realize the measurement of distance.

Specifically, one end of the operating rod 8 in this embodiment is integrally installed with the U-shaped fixing housing through a groove 9 or a boss provided on the U-shaped fixing housing 1. The groove 9 or the protruding column is only used as a part of the connection between the U-shaped fixing shell 1 and the operating rod 8, so the specific size thereof is not limited in this embodiment. As shown in fig. 4, the groove 9 is installed at the position of the finger ring buckle 7, and is matched with the position design of the finger ring buckle 7, so that the installation inclination of the operating rod 8 is more suitable for the use mode of the rolling distance meter of the embodiment. The connection relationship between the groove 9 and the operating rod 8 of the present embodiment can be in a direct socket joint form; or an internal thread is designed in the groove 9, an external thread is designed at the corresponding position of the operating rod 8, and the screw connection is realized; or designing a fixing pile and an L-shaped sliding groove matched with the fixing pile in size at the corresponding position of the groove 9 or the operating rod 8, and enabling the fixing pile to move along the L-shaped sliding groove and finally locking. In this embodiment, besides the form of the groove 9, a convex column can be designed to realize the fixed connection between the U-shaped fixing shell 1 and the operating rod 8, and the specific fixing manner can still adopt several manners listed above, which is not described herein again.

Specifically, as shown in fig. 4, the other end of the operating rod 8 of the present embodiment is provided with a hand grip 10. Fig. 4 only discloses one design shape of the handle 10, and those skilled in the art can design a shape more conforming to human mechanics according to the use requirement, which is not listed here. The hand grip 10 designed in this embodiment provides a better force application position for distance measurement, and can further improve the measurement comfort and accuracy.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims

1. The utility model provides a roll distancer, its characterized in that, roll distancer includes U type set casing, installs the gyro wheel of U type set casing open position, with gyro wheel coaxial arrangement's encoder, and install microcontroller and display on the U type set casing, wherein:

a rotating shaft of the encoder is fixed with the roller, and the roller rotates to drive the rotating shaft to rotate synchronously;

the microcontroller is electrically connected with the encoder and the display respectively.

2. The rolling range finder of claim 1, further comprising a clear button disposed on the U-shaped stationary housing, the clear button being electrically connected to the microcontroller.

3. A rolling range finder as claimed in claim 1 wherein the roller is graduated.

4. A rolling range finder as claimed in claim 1 wherein the encoder is a WDD35D-4 conductive plastic angular displacement sensor.

5. The rolling range finder of claim 1 further comprising a finger loop disposed on the U-shaped stationary housing.

6. A rolling range finder as claimed in claim 1, wherein the U-shaped stationary housing mounts the operating rod.

7. The rolling distance meter as claimed in claim 6, wherein one end of the operating lever is integrally installed with the U-shaped stationary case through a groove or a protrusion provided on the U-shaped stationary case.

8. A rolling range finder as claimed in claim 7 wherein the recess or the boss is provided with a screw thread.

9. A rolling range finder as claimed in claim 7 wherein a peg is provided on either the recess or the stud.

10. A rolling range finder as claimed in claim 6 wherein the other end of the operating rod is provided with a hand grip.