KR20170037249A - Portable Road Weigher - Google Patents

Portable Road Weigher Download PDF

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Publication number
KR20170037249A
KR20170037249A KR1020150136555A KR20150136555A KR20170037249A KR 20170037249 A KR20170037249 A KR 20170037249A KR 1020150136555 A KR1020150136555 A KR 1020150136555A KR 20150136555 A KR20150136555 A KR 20150136555A KR 20170037249 A KR20170037249 A KR 20170037249A
Authority
KR
South Korea
Prior art keywords
load
upper case
lower case
antenna
vehicle
Prior art date
Application number
KR1020150136555A
Other languages
Korean (ko)
Inventor
장세열
최원준
Original Assignee
주식회사 티엠티엔지니어링
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 티엠티엔지니어링 filed Critical 주식회사 티엠티엔지니어링
Priority to KR1020150136555A priority Critical patent/KR20170037249A/en
Publication of KR20170037249A publication Critical patent/KR20170037249A/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/025—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles wheel-load scales
    • G01G19/027—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles wheel-load scales using electrical weight-sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The present invention relates to a portable road weigher capable of increasing a structural force of a display part through a plurality of load support parts, included in the display part, even if the display part, including an antenna, is made of a plastic material. The portable road weigher comprises: a measuring part measuring a load of a vehicle through a load cell connected to a strain gauge; and a display part receiving a vehicle load change measured through the measuring part, and then converting the change into an electric signal through a deformation measuring device connected to an antenna and displaying the signal. The display part comprises: a lower case storing the deformation measuring device inside, including a plurality of load support parts; and an upper case storing a battery pack connected to the deformation measuring device, and combined to cover the upper part of the lower case to be adjacent to the load support parts.

Description

Portable Road Weigher

More specifically, the present invention relates to a movable intermediate shaft having improved structural strength of a display portion, and more particularly, to a structure in which a structural force of a display portion is transmitted through a plurality of load supporting portions provided inside a display portion, Which can be increased.

The middle shaft means a device for measuring the load transmitted to the wheels of the vehicle and measuring the load of the vehicle connected to the wheels.

In the mid-shaft, the load of the vehicle placed on the upper part of the load cell is converted into an electrical signal through the structure of the load cell including the elastic body which is changed by the external force and the strain gauge which converts the change of the elastic body into the electric signal, In the form of various signals that can be identified.

That is, as in Document 1 and Document 2, the load of the vehicle is measured through the configuration of the load cell connected to the strain gage, and the load change of the vehicle is transformed into an electric signal again to display it to the user, To a separate signal that can be identified by the user so that the user can be informed of the load change of the vehicle.

However, in the conventional heavy metal shaft, it is inconvenient to connect a cable through which electric power is supplied in order to apply electric power to the electrical structures provided inside, and when the load of the vehicle is measured using the heavy metal shaft, And there is a problem that when the antenna for changing the load of the vehicle to an electrical signal and sending it to the outside is located outside the middle of the shaft, it may be damaged by the wheels of the vehicle.

Recently, in order to overcome such a problem, a middle shaft connected through a local area network is provided. However, when the inner shaft of the shaft is also installed inside the middle shaft, In order to solve this problem, in the case of forming the middle shaft having the transmitter and the like as plastic, it is possible to smoothly transmit the electric signal using the antenna, but it can be easily broken in the process of measuring the load of the vehicle There was a problem.

In addition, even when the cable is disconnected from the outside and the battery is provided, the space for accommodating the battery and various electrical equipments is increased, There is a problem that the structural force of the display portion constituting the middle shaft is further lowered.

(1) Korean Registered Patent Registration No. 10-0626861 (September 14, 2006) (2) Korean Registered Patent No. 10-0777663 (Nov. 13, 2007)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is as follows.

First, the structure of the antenna for transmitting the electric signal measured through the modifying unit to the outside is prevented from protruding to the outside of the display unit, thereby providing a movable axis unit which can prevent the antenna from being damaged due to the wheels of the vehicle, .

Secondly, even when the antenna is provided inside the display unit, the display unit is formed of a plastic material that can smoothly transmit the electrical signal of the antenna, thereby preventing the antenna from being exposed to the outside, So that it is possible to provide a movable axis medium which can prevent a problem safely.

Thirdly, even when the display portion in which the antenna is housed is made of a plastic material, the lower case and the upper case are connected to each other through a structure of a lower case having a plurality of load- So that the display unit can be easily prevented from being damaged by the load of the vehicle and can be used in a stable manner.

According to an aspect of the present invention, there is provided a strain gauge including: a metering unit for measuring a load of a vehicle through a load cell connected to a strain gauge; and a control unit for receiving an electrical load change measured through the metering unit, Wherein the display unit includes a lower case which houses the deformation measuring device on the inside and has a plurality of load supporting parts on the inside thereof, And an upper case coupled to the upper case so as to cover the upper side of the lower case in close contact with the load supporting portion.

At this time, the antenna may be disposed inside the lower case or the upper case.

The lower case may be formed of a metal material, and the upper case may be formed of a plastic material to facilitate the external transmission of an electrical signal through the antenna.

The load supporting portion may include a plurality of support bars provided in the longitudinal direction or the width direction of the lower case, and a plurality of projecting bars provided inside the lower case and the upper case.

The upper case may include a receiving groove to which the battery pack is coupled, and a battery cover that prevents exposure of the battery pack coupled to the receiving groove.

The deformation measuring apparatus may further include a PCB substrate having a transmitter for receiving and transmitting an electrical signal corresponding to a vehicle load measured through the load cell, and a controller for receiving an electrical signal corresponding to the vehicle load transmitted through the transmitter, And a control unit for controlling the transmitter and the display window.

Also, the PCB substrate may be formed such that the load supporting portion can penetrate through the PCB substrate.

The present invention as described above can achieve the following effects.

According to the present invention, the configuration of the antenna for emitting the electric signal measured through the modifying unit to the outside is not projected to the outside of the display unit, thereby preventing the antenna from being damaged due to the wheels of the vehicle, have.

Further, even when the antenna is provided inside the display unit, the display unit can be formed of a plastic material that can smoothly transmit an electrical signal of the antenna, thereby preventing the antenna from being exposed to the outside, There is an effect that can be solved.

Further, even when the display portion in which the antenna is housed is made of a plastic material, since a plurality of load supporting portions are provided inside the display portion, the overall structural force of the display portion is improved to prevent the display portion from being easily damaged by the load of the vehicle, There is an effect that can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 2 is an exploded perspective view of a movable type intermediate shaft of the present invention. FIG.
FIG. 3 is another exploded perspective view of the movable type intermediate shaft of the present invention. FIG.
FIG. 4 is an enlarged view of a portion of a main portion showing a display portion of a movable type intermediate shaft according to the present invention. FIG.
FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 showing the movable type intermediate shaft of the present invention.
Fig. 6 is a sectional view taken along the line BB of Fig. 4 showing the movable type intermediate shaft of the present invention. Fig.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, but the inventor may appropriately define the concept of the term to describe its invention in the best way Can be interpreted as meaning and concept consistent with the technical idea of the present invention.

It should be noted that the embodiments described in this specification and the configurations shown in the drawings are merely preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications may be present.

First, the configuration will be described with reference to Figs. 1 to 6.

The present invention includes a metering unit 100 for measuring a load of a vehicle through a load cell 150 connected to a strain gauge 160 and an antenna 260 for receiving the measured vehicle load change through the metering unit 100, And a display unit 200 for converting the electrical signal into an electrical signal through a strain gauge 250 connected to the display unit 200 and outputting the electric signal to the outside. The display unit 200 includes the deformation measuring unit 250, A lower case 210 having a plurality of load supporting portions 211 at its inner side and a battery pack 300 connected to the deformation measuring device 250. The load supporting portion 211 includes a lower case 210, And an upper case 220 coupled to cover the upper side of the lower case 210 in close contact with the upper case 220.

The structure of the load cell 150 coupled to the stainless steel gauge 160 and the metering unit 100 having the metering unit 100 includes a strain gauge 160, a load cell 150, And therefore the detailed description thereof will be omitted.

The configuration of the display unit 200 will be described in more detail as follows.

As shown in FIGS. 2 and 3, the lower case 210 of the display unit 200 includes a deformation measurement window 250 and a plurality of load supporting members 211 on the inner side.

The deformation measuring apparatus 250 receives an electrical signal corresponding to a load change of a vehicle placed on the metering section 100 through the configuration of the load cell 150 provided in the metering section 100, A PCB 251 having a transmitter 251a for transmitting an electric signal according to the vehicle load transmitted through the transmitter 251 and converting the signal into a signal measurable by a user for display, And a controller 253 for controlling the transmitter 251a and the display window 252.

2 and 3, the PCB 251 is located inside the display unit 200. The PCB 251 is connected to the load cell 150 through the structure of the transmitter 251a described above (Change in physical quantity) of the vehicle to be transmitted can be automatically converted so as to form a unit common to other units.

In addition, the display window 252 is an apparatus that receives an electrical signal according to the vehicle load transmitted through the transmitter 251a, converts the received electrical signal into a measurable signal, and displays the signal. (Not shown) that can convert a signal transmitted from the transmitter 251a into an analog signal or a digital signal and display it.

1 to 4, the controller 253 controls the transmitter 251a and the display window 252. For this purpose, in the present invention, And electrically connected to the PCB substrate 251.

2 to 4, the upper case 220 is detachably coupled to the upper side of the lower case 210. In order to more firmly engage the lower case 210, The lower case 210 and the upper case 220 are separated from each other through a plurality of fastening bolts (not shown) that interconnect the upper and lower cases 220 and 220, So that they can be combined with each other as much as possible.

Particularly, in the present invention, the antenna 260 connected to the deformation measuring apparatus 250 and transmitting the converted electrical signal to the outside through the deformation measuring apparatus 250 is connected to the lower case 210 constituting the display unit 200, Or the inner case of the upper case 220, thereby preventing the antenna 260 exposed to the outside of the display unit 200 from being easily damaged by an external impact.

5 and 6, when the wheels of the vehicle are closely attached to the upper portion of the upper case 220 to transmit a load of the vehicle, the lower case 210 is formed of a metal material, The upper case 220 is formed of a plastic material so that the upper case 220 is not damaged even when the case 210 is installed and the pressure applied to the upper case 220 is not easily damaged. 210 or the antenna 260 is installed inside the upper case 220, the electrical signal of the antenna 260 can be smoothly transmitted to the outside.

Further, by increasing the overall structural force formed between the lower case 210 and the upper case 220 through the plurality of load supporting portions 211 accommodated in the lower case 210, The lower case 210 and the upper case 220 are easily damaged or the coupling is deformed even when the pressure of the vehicle to be measured is transferred to the upper part of the upper case 220 as shown in FIGS. .

The load supporting portion 211 may be configured to support the lower case 210 of the display unit 200 and the upper case 220 of the present invention for increasing the structural strength of the upper case 220. [ The load supporting portion 211 includes a plurality of supporting bars 211a provided in the longitudinal direction or the width direction of the lower case 210 and a plurality of protrusions provided inward of the lower case 210 And a bar 211b.

2, the support bar 211a has a bar shape on the inner side of the lower case 210 and includes an upper case 220 coupled to the upper side of the lower case 210, As shown in FIG.

2 and 3, the protruding bar 211b is provided on the inner side of the lower case 210 and the upper case 220 so that the lower case 210 and the upper case 220 So that the joining portion can withstand the pressure transmitted from the outside.

When the upper case 210 and the lower case 220 are engaged through the structure of the support bar 211a and the protrusion bar 211b of the load supporting part 211 as described above, As shown in FIGS. 5 and 6, even when the load of the vehicle is transmitted to the upper portion of the upper case 220, it can flexibly respond to the compressive strength according to the load of the vehicle, I will not.

The PCB substrate 251 of the deformation measuring apparatus 250 is formed by allowing the load supporting portion 211 to penetrate through the PCB substrate 251 so that the connection between the lower case 210 and the upper case 220, Is prevented from being deteriorated due to the structure of the load supporting portion 211 or is easily separated.

In addition, the upper case 220 may be configured to receive a battery pack 300 capable of supplying power to the deformation measuring apparatus 250 in order to exclude the configuration of a power cable supplied from the outside, And a battery cover 220 for preventing external exposure of the patty pack 300 coupled to the receiving groove 221. [

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit or scope of the invention as set forth in the following claims It will be apparent to those of ordinary skill in the art.

100: Metering unit 150: Load cell
160: strain gauge 200: display part
210: Lower case 211: Load supporting part
211a: support bar 211b: protruding bar
220: upper case 221: receiving groove
222: Battery cover 250: Deformation measuring device
251: PCB board 251a: Transmitter
252: display window 253:
260: Antenna 300: Battery pack

Claims (7)

A metering unit 100 for measuring the load of the vehicle through the load cell 150 connected to the strain gauge 160 and a deformation connected to the antenna 260 by receiving the measured vehicle load change through the metering unit 100, And a display unit 200 for converting the electrical signals into electrical signals through the measuring device 250 and outputting them to the outside,
The display unit 200
A lower case 210 accommodating the deformation measuring device 250 inside and having a plurality of load supporting portions 211 on the inner side,
And an upper case 220 which houses the battery pack 300 connected to the deformation measuring apparatus 250 and couples the upper case 220 to the upper case 210 so as to be in close contact with the load supporting unit 211 Wherein the center of gravity of the movable shaft is the center of gravity.
The method according to claim 1,
The antenna 260
Is located inside the lower case (210) or the upper case (220).
3. The method of claim 2,
The lower case 210 is formed of a metal material,
Wherein the upper case (220) is formed of a plastic material so that an electric signal through the antenna (260) can be smoothly transmitted to the outside.
The method according to claim 1,
The load supporting portion 211
A plurality of support bars 211a provided in the longitudinal direction or the width direction of the lower case 210,
And a plurality of protruding bars (211b) disposed inside the lower case (210) and the upper case (220).
The method according to claim 1,
The upper case 220
And a battery cover 222 for preventing external exposure of the battery pack 300 coupled to the receiving groove 221. The battery pack 300 includes a receiving groove 221 to which the battery pack 300 is coupled, Medium term.
3. The method according to claim 1 or 2,
The deformation measuring apparatus 250 includes:
A PCB substrate 251 having a transmitter 251a for receiving and sending an electrical signal according to the measured vehicle load through the load cell 150,
A display window 252 for receiving an electrical signal according to the vehicle load transmitted through the transmitter 251a and converting the electrical signal into a measurable signal by a user and displaying the converted signal,
And a controller (253) for controlling the transmitter (251a) and the display window (252).
The method according to claim 6,
The PCB substrate 251
Wherein the load supporting portion (211) is formed to be penetrable.
KR1020150136555A 2015-09-25 2015-09-25 Portable Road Weigher KR20170037249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150136555A KR20170037249A (en) 2015-09-25 2015-09-25 Portable Road Weigher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150136555A KR20170037249A (en) 2015-09-25 2015-09-25 Portable Road Weigher

Publications (1)

Publication Number Publication Date
KR20170037249A true KR20170037249A (en) 2017-04-04

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KR1020150136555A KR20170037249A (en) 2015-09-25 2015-09-25 Portable Road Weigher

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102197122B1 (en) * 2019-10-07 2020-12-31 주식회사 카스 Weight measuring apparatus for vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100626861B1 (en) 2006-05-30 2006-09-20 유영석 Weight of axles measuring apparatus
KR100777663B1 (en) 2007-04-20 2007-11-19 김학선 Portable road weigher

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100626861B1 (en) 2006-05-30 2006-09-20 유영석 Weight of axles measuring apparatus
KR100777663B1 (en) 2007-04-20 2007-11-19 김학선 Portable road weigher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102197122B1 (en) * 2019-10-07 2020-12-31 주식회사 카스 Weight measuring apparatus for vehicles
RU2750087C1 (en) * 2019-10-07 2021-06-22 КАС Корпорейшн Device for measuring weight of vehicles
US11162835B2 (en) 2019-10-07 2021-11-02 Cas Corporation Weight measuring apparatus for vehicles

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