CN211483120U

CN211483120U - Electronic ruler

Info

Publication number: CN211483120U
Application number: CN201922029043.3U
Authority: CN
Inventors: 胡文亮; 彭圣
Original assignee: Zhuhai Yixun Technology Co ltd
Current assignee: Zhuhai Yixun Technology Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-15
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses an electronic ruler, which comprises a shell, a ruler belt outlet; the rotating wheel is rotatably arranged in the shell, a tape and an elastic resetting piece are arranged on the rotating wheel, and one end of the tape penetrates through the tape outlet; the grating wheel is connected with the rotating wheel and is coaxially arranged, and grating scales are arranged on the grating wheel; the photoelectric sensor is arranged on one side of the grating wheel and used for reading the grating scales; and the data acquisition circuit board is electrically connected with the photoelectric sensor and is used for metering the grating scales. Compare with the roll encoder, photoelectric sensor's precision is higher, is favorable to improving measurement accuracy, and the grating wheel is connected and coaxial setting with the runner, compares with non-coaxial setting, can save drive structure, and can avoid the measuring error because of reasons such as drive structure contact failure cause, realizes the synchronous rotation between grating wheel and the runner, improves measurement accuracy.

Description

Electronic ruler

Technical Field

The utility model relates to a clothing instrument technical field, in particular to electronic ruler.

Background

In the garment industry, the sizing of garments is typically measured manually by means of an electronic ruler. The current electronic ruler has the following defects: 1) the measurement precision is not high; 2) it is inconvenient to measure the corner position of the laundry; 3) the measurement efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electronic ruler can improve measurement accuracy.

According to the utility model discloses an electronic ruler of first aspect embodiment, including the casing, be provided with the chi area export; the rotating wheel is rotatably arranged in the shell, a tape and an elastic resetting piece are arranged on the rotating wheel, and one end of the tape penetrates through the tape outlet; the grating wheel is connected with the rotating wheel and is coaxially arranged, and grating scales are arranged on the grating wheel; the photoelectric sensor is arranged on one side of the grating wheel and used for reading the grating scales; and the data acquisition circuit board is electrically connected with the photoelectric sensor and is used for metering the grating scales.

According to the utility model discloses electronic ruler has following beneficial effect at least:

compare with the roll encoder, photoelectric sensor's precision is higher, is favorable to improving measurement accuracy, and the grating wheel is connected and coaxial setting with the runner, compares with non-coaxial setting, can save drive structure, and can avoid the measuring error because of reasons such as drive structure contact failure cause, realizes the synchronous rotation between grating wheel and the runner, improves measurement accuracy.

According to some embodiments of the invention, the tape outlet is provided with an extension.

According to some embodiments of the invention, the extension is formed from a light transmissive material.

According to the utility model discloses a some embodiments, one side of chi area is provided with the detection sensor that returns to zero, be provided with the mark that returns to zero on the chi area, return to zero detection sensor with data acquisition circuit board electric connection, the detection sensor that returns to zero is used for detecting the mark that returns to zero on the chi area.

According to some embodiments of the present invention, the data acquisition circuit board includes microprocessor and with microprocessor electric connection's wireless communication module.

According to some embodiments of the utility model, be provided with button module and display module on the casing, button module with display module respectively with microprocessor electric connection, button module is used for passing through operating signal microprocessor sends for wireless communication module, wireless communication module be used for with operating signal sends for terminal equipment, and receives and comes from terminal equipment's response signal, and will response signal passes through microprocessor sends for display module.

According to the utility model discloses a some embodiments, one side of runner is provided with and is used for the installation elasticity resets the installation cavity of piece, the axle center department of runner is provided with the pivot mounting hole, be provided with in the installation cavity and be used for connecting elasticity resets the mounting of piece.

According to some embodiments of the utility model, the both sides of runner are provided with first pivot mounting panel and second pivot mounting panel respectively, first pivot mounting panel and second pivot mounting panel respectively with the casing is connected, be provided with the axis of rotation on the first pivot mounting panel, the axis of rotation is worn to locate pivot mounting hole and with the second pivot mounting panel is connected.

According to some embodiments of the invention, the runner with the grating wheel integrated into one piece.

According to some embodiments of the invention, the extension of the tape

D is the perimeter of the grating wheel, D is the thickness of the tape after being rolled, n is the number of turns of the grating wheel, and X is a compensation value.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an electronic ruler according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of the electronic ruler shown in fig. 1;

fig. 3 is a second schematic structural view of an electronic ruler according to an embodiment of the present invention;

fig. 4 is a schematic block diagram of an electronic ruler according to an embodiment of the present invention;

fig. 5 is an exploded schematic view of the electronic ruler shown in fig. 3;

fig. 6 is a schematic view of a grating wheel of the electronic ruler shown in fig. 5;

fig. 7 is an exploded view of the assembly of the grating wheel of the electronic ruler shown in fig. 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the present embodiment discloses an electronic ruler, which includes a housing 100, a rotating wheel 200, a grating wheel 300, a photoelectric sensor 400 and a data collecting circuit board 500, wherein the housing 100 is provided with a ruler tape outlet 110; the reel 200 is rotatably arranged in the housing 100, and the reel 200 is provided with a tape (not shown) and an elastic restoring member (not shown) for enabling the tape to be rewound after being pulled out. One end of the tape passes through the tape outlet 110; the grating wheel 300 is connected with the rotating wheel 200 and is coaxially arranged, grating scales 301 are arranged on the grating wheel 300, and the grating scales 301 can be through holes which are uniformly distributed on the edge of the grating wheel 300 in the circumferential direction; the photoelectric sensor 400 is arranged at one side of the grating wheel 300, and the photoelectric sensor 400 is used for reading the grating scale 301; the data acquisition circuit board 500 is electrically connected to the photoelectric sensor 400, and the data acquisition circuit board 500 is used for measuring the grating scale 301. The data acquisition circuit board 500 is powered by a battery.

Compare with the roll encoder, photoelectric sensor 400's precision is higher, is favorable to improving measurement accuracy, and grating wheel 300 is connected and coaxial setting with runner 200, compares with non-coaxial setting, can save drive structure, for example the gear, and can avoid the measurement error because of reasons such as drive structure contact failure cause, realizes the synchronous rotation between grating wheel 300 and the runner 200, improves measurement accuracy.

Referring to fig. 3, since a portion of the clothes, such as the underwear of a woman, has a protrusion or a depression, and the portion has a corner and a small size, when the electronic ruler is used for manual measurement, in order to facilitate measurement of the portion, the ruler tape outlet 110 is provided with an extension 111, and the ruler tape is inserted through the extension 111. When measuring, one hand of an operator fixes one end of the ruler belt, the other hand of the operator uses the electronic ruler to enable the extension part 111 to be tightly attached to the corner of the convex or concave part of the clothes to fix the other end of the ruler belt, so that the ruler belt can be tightly attached to the corner of the convex or concave part of the clothes, the convex or concave part of the clothes can be conveniently measured, and measuring errors are reduced.

To facilitate the reading by the operator, the extension 111 is formed of a light-transmissive material, which may be acrylic or glass.

Referring to fig. 4 and 5, in order to further improve the measurement accuracy of the electronic ruler, a return-to-zero detection sensor 600 is disposed on one side of the ruler tape, a return-to-zero mark (not shown) is disposed on the ruler tape, the return-to-zero detection sensor 600 is electrically connected to the data acquisition circuit board 500, and the return-to-zero detection sensor 600 is used for detecting the return-to-zero mark on the ruler tape. The return-to-zero detection sensor 600 adopts a magnetic sensor, the return-to-zero mark adopts a magnetic strip, when the tape is in a winding initial state, the return-to-zero detection sensor 600 detects the return-to-zero mark, the return-to-zero detection sensor 600 generates a return-to-zero signal, the tape is reset, the measurement starting point is ensured to be correct, the measurement precision is improved, when the tape is pulled out, the return-to-zero mark moves along with the tape, the return-to-zero detection sensor 600 cannot detect the return-to-zero mark, and the data acquisition circuit board 500 starts to calculate the number of rotation turns of the grating wheel 300. The return-to-zero detection sensor 600 may also employ a grooved optocoupler, and the return-to-zero mark may be a through hole provided on the tape.

Specifically, the data collecting circuit board 500 includes a microprocessor 510 and a wireless communication module 520 electrically connected to the microprocessor 510. The wireless communication module 520 can be a bluetooth module, a WIFI module or a GPRS module, the wireless communication module 520 is used for connecting a terminal device, and the terminal device can be a mobile phone or a tablet computer. Photoelectric sensor 400 sends the signal of gathering for microprocessor 510, and microprocessor 510 sends this signal for terminal equipment through wireless communication module 520, realizes the automatic of measured data and types, compares with artifical record measured data, can practice thrift the paper cost, improves measurement of efficiency and data entry efficiency, avoids artifical type data to make mistakes, and the measured data of this embodiment type is electronic data, the subsequent processing and the extension of the data of being convenient for are used.

Referring to fig. 3 to 5, a key module 700 and a display module 800 are disposed on the housing 100, the key module 700 and the display module 800 are electrically connected to the microprocessor 510, respectively, the key module 700 is used for sending an operation signal to the wireless communication module 520 through the microprocessor 510, the wireless communication module 520 is used for sending the operation signal to the terminal device, receiving a response signal from the terminal device, and sending the response signal to the display module 800 through the microprocessor 510. The key module 700 functions similarly to a remote control, and the key module 700 can remotely operate a cursor and a preset function module of the terminal device. Specifically, the data entry form of the terminal device is EXCEL or WORD, and the key module 700 can remotely operate the cursor of the terminal device to realize the up-down and left-right movement of the cursor, or perform operations such as determination and zero clearing, so that the electronic ruler is more flexible and convenient to apply.

Referring to fig. 6, a mounting cavity 210 for mounting the elastic reset member is disposed at one side of the rotating wheel 200, a rotating shaft mounting hole 211 is disposed at an axis of the rotating wheel 200, and a fixing member 212 for connecting the elastic reset member is disposed in the mounting cavity 210. The elastic reset piece is arranged in the mounting cavity 210 of the rotating wheel 200, so that the internal space of the shell 100 can be fully utilized, and the size of the electronic ruler can be reduced.

Referring to fig. 5 to 7, a first rotating shaft mounting plate 910 and a second rotating shaft mounting plate 920 are respectively disposed on two sides of the rotating wheel 200, the first rotating shaft mounting plate 910 and the second rotating shaft mounting plate 920 are respectively connected to the casing 100, a rotating shaft 911 is disposed on the first rotating shaft mounting plate 910, and the rotating shaft 911 penetrates through the rotating shaft mounting hole 211 and is connected to the second rotating shaft mounting plate 920. The elastic reset member of this embodiment is a coil spring, and when assembling, one end of the elastic reset member is connected to the rotating shaft 911, and the other end of the elastic reset member is connected to the fixing member 212.

The rotating wheel 200 and the grating wheel 300 are integrally formed, so that the processing and the assembly are convenient, the rotating wheel 200 and the grating wheel 300 can be coaxially arranged, the measurement error caused by the eccentricity of the rotating wheel 200 and the grating wheel 300 is avoided, and the measurement precision is favorably improved.

Extension of the tape

Wherein D is the perimeter of the grating wheel 300, D is the thickness of the tape after being rolled, n is the number of turns of the grating wheel 300, and X is a compensation value. Specifically, the perimeter D, the thickness D, and the compensation value X are fixed values, in an initial state, a point where the tape is tangent to the rotating wheel 200 is a point a, a zero scale point on the tape is a point B, the compensation value X is equal to the length between the point a and the point B, and the number of rotation turns n is measured by the photoelectric sensor 400. In the measuring process, the rolling thickness of the tape is gradually reduced along with the pulling of the tape, and the extending length L of the tape and the rotation angle of the grating wheel 300 or the rotating wheel 200 are in a nonlinear relationship. The formula (1) can accurately calculate the extension length L of the tape, and is favorable for improving the measurement precision.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An electronic ruler, comprising:

a housing (100) provided with a tape outlet (110);

the rotating wheel (200) is rotatably arranged in the shell (100), a tape and an elastic resetting piece are arranged on the rotating wheel (200), and one end of the tape penetrates through the tape outlet (110);

the grating wheel (300) is connected with the rotating wheel (200) and is coaxially arranged, and grating scales (301) are arranged on the grating wheel (300);

the photoelectric sensor (400) is arranged on one side of the grating wheel (300) and used for reading the grating scales (301);

and the data acquisition circuit board (500) is electrically connected with the photoelectric sensor (400) and is used for metering the grating scales (301).

2. Electronic ruler according to claim 1, characterized in that the tape outlet (110) is provided with an extension (111).

3. Electronic ruler according to claim 2, characterized in that the extension (111) is molded in a light-transmissive material.

4. The electronic ruler according to claim 1, wherein a return-to-zero detection sensor (600) is arranged on one side of the ruler tape, a return-to-zero mark is arranged on the ruler tape, the return-to-zero detection sensor (600) is electrically connected with the data acquisition circuit board (500), and the return-to-zero detection sensor (600) is used for detecting the return-to-zero mark on the ruler tape.

5. The electronic ruler of claim 1, wherein the data acquisition circuit board (500) comprises a microprocessor (510) and a wireless communication module (520) electrically connected to the microprocessor (510).

6. The electronic ruler according to claim 5, wherein the housing (100) is provided with a key module (700) and a display module (800), the key module (700) and the display module (800) are respectively electrically connected to the microprocessor (510), the key module (700) is configured to send an operation signal to the wireless communication module (520) through the microprocessor (510), the wireless communication module (520) is configured to send the operation signal to a terminal device, receive a response signal from the terminal device, and send the response signal to the display module (800) through the microprocessor (510).

7. The electronic ruler according to claim 1, wherein a mounting cavity (210) for mounting the elastic reset member is formed in one side of the rotating wheel (200), a rotating shaft mounting hole (211) is formed in the axis of the rotating wheel (200), and a fixing member (212) for connecting the elastic reset member is arranged in the mounting cavity (210).

8. The electronic ruler according to claim 7, wherein a first rotating shaft mounting plate (910) and a second rotating shaft mounting plate (920) are respectively disposed on two sides of the rotating wheel (200), the first rotating shaft mounting plate (910) and the second rotating shaft mounting plate (920) are respectively connected to the housing (100), a rotating shaft (911) is disposed on the first rotating shaft mounting plate (910), and the rotating shaft (911) penetrates through the rotating shaft mounting hole (211) and is connected to the second rotating shaft mounting plate (920).

9. Electronic ruler according to claim 1 characterized in that the wheel (200) and the grating wheel (300) are integrated.

10. An electronic ruler according to claim 1 or 2, wherein the tape has a protruding length

D is the perimeter of the grating wheel (300), D is the thickness of the tape after being rolled, n is the number of rotation turns of the grating wheel (300), and X is a compensation value.