CN219048492U - Digital display height measuring ruler - Google Patents
Digital display height measuring ruler Download PDFInfo
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- CN219048492U CN219048492U CN202222789826.3U CN202222789826U CN219048492U CN 219048492 U CN219048492 U CN 219048492U CN 202222789826 U CN202222789826 U CN 202222789826U CN 219048492 U CN219048492 U CN 219048492U
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- 241000606706 Chione <angiosperm> Species 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008131 children development Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of measuring scales, in particular to a digital display height measuring scale, which comprises a fixed scale, a movable scale moving along the length direction of the fixed scale, a display, a friction wheel arranged on one side of the movable scale and in friction contact with the movable scale, a driving wheel coaxially fixed with the friction wheel, a driven wheel meshed with the driving wheel, a wheel disc coaxially fixed with the driven wheel, and a rotation travel photoelectric sensor for reading the wheel disc, wherein the photoelectric sensor is electrically connected with the display. The photoelectric sensor senses the measurement length, so that the response time is fast, the cost is low, and the cost can be controlled and the quick reading can be realized in the measurement process.
Description
Technical Field
The utility model relates to the technical field of measuring scales, in particular to a digital display height measuring scale.
Background
The child in infancy needs to take height measurements periodically to check the infant's development. At present, the height of a baby is measured in families, hospitals and other places by adopting a leather measuring tape, or an adjustable baby height measuring instrument disclosed in patent CN202015173U is adopted, and the height measurement is realized by arranging a bottom plate, a back baffle plate and a movable baffle plate on the bottom plate respectively, wherein scales are arranged on the back baffle plate, the movable baffle plate can move along the scale direction, and the baby is placed on the bottom plate in a lying way and the scales are read by the movable baffle plate. However, in the above measurement methods, the measurement size needs to be extracted by manually reading the scale, which is inefficient and the accuracy of the measurement result is low.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a digital display height measuring ruler capable of realizing automatic reading.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a digital display height measurement ruler, include fixed ruler and follow the length direction of fixed ruler removes the chi, still include the display, set up remove chi one side and with the friction wheel of moving chi frictional contact, with the action wheel of the coaxial fixed of friction wheel, with the driven wheel of action wheel meshing, with the rim plate of the coaxial fixed of driven wheel and be used for reading the rotation stroke photoelectric sensor of rim plate, photoelectric sensor with the display electricity is connected.
Further, the number of the friction wheels is two, the two friction wheels are oppositely arranged on two sides of the movable ruler, and the outer circumferential surfaces of the two friction wheels are respectively abutted against the outer side walls of the two long sides which are oppositely arranged on the movable ruler.
Further, the rim plate includes a plurality of racks that encircle outer periphery evenly setting, photoelectric sensor includes U-shaped scanning portion, the inside wall that U-shaped scanning portion corresponds is equipped with the probe, just U-shaped scanning portion with the rack place interlock that the rim plate corresponds.
Further, the device also comprises a shell, wherein the display is arranged on the outer surface of the shell, and the friction wheel, the driving wheel, the driven wheel, the wheel disc and the photoelectric sensor are all arranged in the shell; one end of the fixed ruler, which is close to the movable ruler, is fixedly connected with one side wall of the shell, the other side wall of the shell is provided with a slot which is arranged opposite to the fixed ruler, and the movable ruler is in sliding connection with the slot.
Further, a bump is arranged on one side wall of the slot, and a stop block which can be contacted with the bump is arranged at one end of the movable ruler, which is close to the fixed ruler.
Further, one end of the fixed ruler far away from the movable ruler and one end of the movable ruler far away from the fixed ruler are respectively provided with a supporting seat.
Further, the supporting seat is provided with a foldable retaining plate extending outwards.
The utility model has the beneficial effects that: the utility model provides a digital display height dipperstick, the movable ruler passes through frictional force drive friction pulley rotation at the removal in-process, and then frictional force drives action wheel and follow driving wheel rotation, rotate rather than the rim plate rotation of coaxial fixed simultaneously from the driving wheel, detect and read the rotation stroke of rim plate through photoelectric sensor at the rotatory in-process of rim plate, and change the rotation stroke of rim plate into the movable stroke of movable ruler and obtain height detection data after showing the reading through the display, because photoelectric sensor response time is fast, with low costs, thereby can control the cost and realize quick reading at the measurement in-process.
Drawings
FIG. 1 is an exploded view of a digital height measuring scale according to the present utility model;
FIG. 2 is a schematic view showing a part of a digital height measuring scale according to the present utility model;
description of the reference numerals:
1. a housing; 11. a fixing groove; 12. a slot; 13. a second rotating shaft; 14. a support base; 15. a retaining plate; 2. a fixed ruler; 21. a through hole; 3. a movable ruler; 4. a display; 5. a friction wheel; 6. a driving wheel; 7. driven wheel; 8. a wheel disc; 81. a rack; 9. a photoelectric sensor; 10. a first rotating shaft.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 2, the digital display height measuring scale provided by the utility model comprises a fixed scale, a movable scale moving along the length direction of the fixed scale, a display, a friction wheel arranged on one side of the movable scale and in friction contact with the movable scale, a driving wheel coaxially fixed with the friction wheel, a driven wheel meshed with the driving wheel, a wheel disc coaxially fixed with the driven wheel, and a rotation stroke photoelectric sensor for reading the wheel disc, wherein the photoelectric sensor is electrically connected with the display.
From the above description, the beneficial effects of the utility model are as follows: the utility model provides a digital display height dipperstick, the movable ruler passes through frictional force drive friction pulley rotation at the removal in-process, and then frictional force drives action wheel and follow driving wheel rotation, rotate rather than the rim plate rotation of coaxial fixed simultaneously from the driving wheel, detect and read the rotation stroke of rim plate through photoelectric sensor at the rotatory in-process of rim plate, and change the rotation stroke of rim plate into the movable stroke of movable ruler and obtain height detection data after showing the reading through the display, because photoelectric sensor response time is fast, with low costs, thereby can control the cost and realize quick reading at the measurement in-process.
Further, the number of the friction wheels is two, the two friction wheels are oppositely arranged on two sides of the movable ruler, and the outer circumferential surfaces of the two friction wheels are respectively abutted against the outer side walls of the two long sides which are oppositely arranged on the movable ruler.
From the above description, the two friction wheels are oppositely arranged at two sides of the movable ruler, so that a clamping state can be formed on the movable ruler, the friction force between the movable ruler and the friction force is improved, and further synchronous movement of the friction wheels and the movable ruler can be ensured, and the measurement accuracy is improved.
Further, the rim plate includes a plurality of racks that encircle outer periphery evenly setting, photoelectric sensor includes U-shaped scanning portion, the inside wall that U-shaped scanning portion corresponds is equipped with the probe, just U-shaped scanning portion with the rack place interlock that the rim plate corresponds.
From the above description, the probe in the U-shaped scanning section scans the number of passing racks and multiplies the number of racks by the distance between adjacent racks to obtain the rotational travel of the wheel disc, which is equal to the measured distance of the moving ruler. The photoelectric sensor has the advantages of short response time, high sensitivity, quick response, low cost and the like.
Further, the device also comprises a shell, wherein the display is arranged on the outer surface of the shell, and the friction wheel, the driving wheel, the driven wheel, the wheel disc and the photoelectric sensor are all arranged in the shell; one end of the fixed ruler, which is close to the movable ruler, is fixedly connected with one side wall of the shell, the other side wall of the shell is provided with a slot which is arranged opposite to the fixed ruler, and the movable ruler is in sliding connection with the slot.
From the above description, the movable rule is slidably connected with the slot, and the slot can play a limiting role on the movable rule, so as to ensure that the movable rule keeps moving linearly and prevent measurement offset.
Further, a bump is arranged on one side wall of the slot, and a stop block which can be contacted with the bump is arranged at one end of the movable ruler, which is close to the fixed ruler.
From the above description, the bump on the slot can play a limiting role on the stop block of the movable rule, so as to prevent the movable rule from being pulled out of the shell when moving to the limit position.
Further, one end of the fixed ruler far away from the movable ruler and one end of the movable ruler far away from the fixed ruler are respectively provided with a supporting seat.
From the above description, the supporting seats arranged on the fixed ruler and the movable ruler enable the measuring ruler to be kept in a supporting state on a horizontal plane, and the measuring ruler is convenient for measuring the height of a lying baby.
Further, the supporting seat is provided with a foldable retaining plate extending outwards.
From the above description, the supporting seat is provided with the outwards extending retaining plates, and the retaining plates on two sides can be opened to be in contact with the head and the feet of the baby, so that the efficiency and the accuracy of measurement operation are improved.
The digital display height measuring ruler is mainly applied to a scene of measuring the height of a baby on a horizontal table top.
Referring to fig. 1 to 2, a first embodiment of the present utility model is as follows: the utility model provides a digital display height measuring scale, is in including casing 1 setting fixed chi 2, removal chi 3, display 4, friction pulley 5, action wheel 6, follow driving wheel 7, rim plate 8 and photoelectric sensor 9 in the casing. The shell is of a rectangular structure, one side wall of the shell is provided with a fixing groove 11, and the other side wall of the shell is provided with a slot 12 opposite to the fixing groove. One end of the fixed ruler is fixedly embedded in the fixed groove, a rectangular hollow cavity is formed in the fixed ruler, a hollow opening communicated with the hollow cavity is formed in one end of the fixed ruler, and the movable ruler is matched with the hollow opening of the fixed ruler. One end of the movable ruler sequentially penetrates through the slot and the hollow cavity of the fixed ruler and is in sliding connection with the slot, so that the movable ruler can move along the length direction of the fixed ruler. A bump is arranged on one side wall of the slot, and a stop block which can be contacted with the bump is arranged at one end of the movable ruler. The measuring length of the moving ruler ranges from 35.0cm to 81.7cm, and the measuring length of the moving ruler is 50cm. Therefore, when the movable ruler moves to the limit, the stop block on the movable ruler is in abutting contact with the convex block, and the movable ruler is limited through the convex block, so that the movable ruler is prevented from being pulled out of the shell.
In this embodiment, through holes 21 are respectively formed on two outer side walls of the fixed ruler in the longitudinal direction at the position inside the casing. The number of the friction wheels and the number of the driving wheels are two, the driving wheels and the friction wheels are coaxially fixed through a first rotating shaft 10, and the first rotating shaft is rotatably connected with the side wall of the shell. The two friction wheels are oppositely arranged at the positions of the two through holes of the fixed ruler, so that the outer circumferential surfaces of the two friction wheels can respectively penetrate through the through holes to be in friction contact with the two long side outer side walls of the movable ruler, which are oppositely arranged. The wheel disc and the driven wheel are coaxially fixed through a second rotating shaft 13, and the second rotating shaft is rotatably connected with the side wall of the shell. The driven wheel is arranged on one side of any driving wheel, and the driven wheel is meshed with the driving wheel. When the movable ruler moves, the friction force acting on the friction wheel drives the friction wheel to rotate, so that the driving wheel and the driven wheel are driven to rotate.
In this embodiment, photoelectric sensor sets up the rim plate is kept away from one side of moving the chi, photoelectric sensor include the U-shaped scanning portion and with the control chip that U-shaped scanning portion electricity is connected, the inside wall that the U-shaped scanning portion corresponds is equipped with photoelectric probe. The wheel disc comprises a plurality of racks 81 uniformly arranged around the outer circumferential surface of the wheel disc, and the distances between adjacent racks are equal. The position of the rack corresponding to the wheel disc is embedded in the U-shaped opening corresponding to the U-shaped scanning part, so that the position of the U-shaped scanning part and the position of the rack corresponding to the wheel disc are in an occlusion state. When the driven wheel starts to rotate under the drive of the driving wheel, the wheel disc and the driven wheel synchronously rotate under the drive of the second rotating shaft. The rotating process of the wheel disc sequentially comprises the steps that racks pass through the photoelectric probes in the U-shaped scanning part, the photoelectric probes scan to obtain the passing quantity of the racks and transmit the passing quantity to the control chip, the control chip calculates to obtain the rotating stroke of the wheel disc according to the distance between the racks and the passing quantity of the racks, and the rotating stroke of the wheel disc is equal to the total moving quantity in the moving process of the moving ruler.
In this embodiment, the photoelectric sensor is connected with the display electricity, the display is including setting up display screen and the setting on the casing surface are in the inside controller of casing, the controller respectively with the display screen with the photoelectric sensor electricity is connected, the photoelectric sensor carries the mobile amount of moving of the mobile ruler that obtains to the controller, and the controller obtains the total length of measurement according to the length of fixed tooth and the mobile amount of moving the ruler to with measurement data shows on the display screen.
In this embodiment, the other end of the fixed ruler and the end of the other end of the movable ruler are respectively provided with a supporting seat 14 and a retaining plate 15 arranged on the supporting seat, the supporting seat is in a cuboid structure, and the thickness of the supporting seat is greater than that of the shell. The abutment plate is hinged with one end, far away from the fixed ruler or the movable ruler, of the supporting seat, and the abutment plate can be folded on the supporting seat through hinging.
In this embodiment, the fixed ruler and the movable ruler are made of aluminum alloy materials, and scales are arranged on the surface of the movable ruler.
Working principle:
measurement operation: placing the measuring rule on a horizontal table top, opening a retaining plate at one side of the fixed rule, placing the infant on the table top and abutting the head of the infant on the retaining plate at one side of the fixed rule, then moving the movable rule and opening the retaining plate at one side of the movable rule, and moving the retaining plate at one side of the movable rule to abut against the footsteps of the infant;
measurement principle: the friction force generated by contact between the movable ruler and the friction force drives the friction wheel to rotate in the moving process of the movable ruler, the friction wheel further drives the wheel disc to rotate through the driving wheel and the driven wheel, the racks sequentially pass through the photoelectric probes in the U-shaped scanning part in the rotating process of the wheel disc, the photoelectric sensors scan the number of the racks and calculate the rotating stroke of the wheel disc according to the distance between the racks, the rotating stroke of the wheel disc is equal to the moving amount of the movable ruler in the moving process of the movable ruler, and finally the total measuring length of the measuring ruler is obtained and the total measuring length is displayed to have specific measuring values through the display.
In summary, according to the digital display height measuring ruler provided by the utility model, the friction force drives the friction wheel to rotate in the moving process of the moving ruler, so that the friction force drives the driving wheel and the driven wheel to rotate, the driven wheel rotates and rotates with the wheel disc coaxially fixed with the driven wheel, the rotating stroke of the wheel disc is detected and read through the photoelectric sensor in the rotating process of the wheel disc, the rotating stroke of the wheel disc is converted into the moving stroke of the moving ruler to obtain height detection data, and the reading is displayed through the display.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a digital display height dipperstick, includes fixed chi and follow the length direction of fixed chi removes the rule, its characterized in that still includes the display, set up remove chi one side and with the friction wheel of moving rule friction contact, with the action wheel of the coaxial fixed of friction wheel, with the driven wheel of action wheel meshing, with the wheel disc of the coaxial fixed of driven wheel and the photoelectric sensor who is used for reading the rotation stroke of wheel disc, photoelectric sensor with the display electricity is connected.
2. The digital display height measuring scale according to claim 1, wherein the number of the friction wheels is two, the two friction wheels are oppositely arranged on two sides of the movable scale, and the outer circumferential surfaces of the two friction wheels are respectively abutted against the outer side walls of two long sides which are oppositely arranged on the movable scale.
3. The digital display height measuring ruler according to claim 1, wherein the wheel disc comprises a plurality of racks uniformly arranged around the outer circumferential surface, the photoelectric sensor comprises a U-shaped scanning part, a probe is arranged on the inner side wall corresponding to the U-shaped scanning part, and the U-shaped scanning part is meshed with the position of the rack corresponding to the wheel disc.
4. The digital display height measuring ruler according to claim 1, further comprising a shell, wherein the display is arranged on the outer surface of the shell, and the friction wheel, the driving wheel, the driven wheel, the wheel disc and the photoelectric sensor are all arranged in the shell; one end of the fixed ruler, which is close to the movable ruler, is fixedly connected with one side wall of the shell, the other side wall of the shell is provided with a slot which is arranged opposite to the fixed ruler, and the movable ruler is in sliding connection with the slot.
5. The digital height measuring scale according to claim 4, wherein a bump is provided on a side wall of the slot, and a stop block capable of contacting with the bump is provided at an end of the movable scale close to the fixed scale.
6. The digital display height measuring scale according to claim 1, wherein one end of the fixed scale far away from the movable scale and one end of the movable scale far away from the fixed scale are respectively provided with a supporting seat.
7. The digital display height measuring scale according to claim 6, wherein the support base is provided with a foldable retaining plate extending outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222789826.3U CN219048492U (en) | 2022-10-21 | 2022-10-21 | Digital display height measuring ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222789826.3U CN219048492U (en) | 2022-10-21 | 2022-10-21 | Digital display height measuring ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219048492U true CN219048492U (en) | 2023-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222789826.3U Active CN219048492U (en) | 2022-10-21 | 2022-10-21 | Digital display height measuring ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219048492U (en) |
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2022
- 2022-10-21 CN CN202222789826.3U patent/CN219048492U/en active Active
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