CN214792967U - Magnetic induction curve measuring instrument - Google Patents

Abstract

The utility model discloses a magnetic induction curve measuring apparatu, include: the device comprises a lower shell, a middle shell, an upper shell, a measuring assembly and a control panel; the mesochite is the ring form, and the one end inner wall of mesochite is equipped with the tooth, the one end swing joint of epitheca and mesochite, the one end swing joint of epitheca is kept away from with the mesochite to the inferior valve, and in the mesochite was located to the control panel, the electricity was connected with the inductor on the control panel, and measuring component wears to locate on the control panel, measuring component's one end and epitheca swing joint, the other end and inferior valve swing joint, measuring component and tooth meshing, the inductor corresponds with measuring component. By adopting the design, the gear and the magnetic sheet which are coaxially arranged are arranged in the measuring instrument, the middle shell drives the gear and the magnetic sheet to rotate, so that the N pole and the S pole on the magnetic sheet are continuously changed, and the changing signals of the N pole and the S pole induced by the inductor are converted into length display through the control panel; contactless response avoids hindering the rotation of magnetic sheet to promote the measuring precision, and long-term non-wearing and tearing, long service life.

Description

Magnetic induction curve measuring instrument

Technical Field

The utility model relates to a measuring instrument technical field especially relates to a magnetic induction curve measuring apparatu.

Background

In life, measurement tools are often used to measure objects or figures, and length measurement is the most basic measurement tool, and the most common tool is a graduated scale. The traditional graduated scale is of a solid scale body structure, the measuring range and the scale marks are marked on the scale body, the graduated scale is placed along the measured length during use and is attached to a measured object, and the reading sight is perpendicular to the scale surface, so that the process of measuring and reading the graduated scale is finished.

However, the length of the curve is often required to be measured in life, but the traditional measuring tool is very inconvenient to measure the curve and has low measuring accuracy, so people invent that the mouse encoder is used for measuring, a pulse signal is generated through the rotation of the roller wheel, and the calculated length is obtained through calculating the pulse signal.

Accordingly, there is a need to design a magnetic induction curve measuring instrument that solves one or more of the problems set forth above.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems that exist among the prior art, the utility model provides a magnetic induction curve measuring apparatu.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: a magnetic induction curve measuring instrument, comprising: the device comprises a lower shell, a middle shell, an upper shell, a measuring assembly and a control panel; the mesochite is the ring form, the one end of mesochite is equipped with the tooth along the inner wall, the epitheca with the one end swing joint of mesochite, the inferior valve with the mesochite is kept away from the one end swing joint of epitheca, the control panel is located in the mesochite, be connected with the inductor on the control panel, measuring unit locates on the control panel, measuring unit's one end with epitheca swing joint, the other end with inferior valve swing joint, measuring unit with tooth meshing, the inductor with measuring unit corresponds.

In a preferred embodiment, the measurement assembly comprises: gears, magnetic sheets; the gear with the tooth meshes mutually, the one end of gear with epitheca swing joint, the other end with inferior valve swing joint, the magnetic sheet includes at least a pair of N utmost point and S utmost point, the magnetic sheet with the gear coaxial setting, the magnetic sheet with the inductor is corresponding.

In a preferred embodiment, a display slot is formed in the middle of the upper shell, a display screen is arranged on the display slot, the display screen is electrically connected with the control board, a top cover is further connected to the top surface of the upper shell, a display hole is formed in the top cover, the display hole corresponds to the display screen, at least two bearings or shaft sleeves are arranged on the bottom surface of the upper shell, and each bearing or shaft sleeve is respectively abutted to the inner wall of the middle shell.

In a preferred embodiment, the lower casing is provided with a battery slot, the bottom surface of the lower casing is connected with a bottom cover in a buckling mode, the bottom cover is provided with a switch button and an unlocking block, and the unlocking block protrudes out of the plane of the bottom cover.

In a preferred embodiment, the control board is further provided with a battery position, the battery position is provided with a battery, the battery is electrically connected with the control board, the battery position corresponds to the battery slot hole, the control board is further provided with a starting switch, and the starting switch corresponds to the switch button.

In a preferred embodiment, the outer wall of the middle shell is further sleeved with a rubber ring, and the rubber ring is further provided with a plurality of anti-skidding grooves.

The utility model has the advantages that: compared with the prior art, the utility model has the advantages that the gear and the magnetic sheet which are coaxially arranged are arranged in the measuring instrument, the inductor corresponding to the magnetic sheet is arranged, the gear and the magnetic sheet are driven to rotate through the middle shell, the N pole and the S pole on the magnetic sheet are continuously changed, and the changing signals of the N pole and the S pole induced by the inductor are converted into the length display through the control panel; contactless response avoids hindering the rotation of magnetic sheet to promote the measuring precision, and long-term non-wearing and tearing, long service life.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the preferred embodiment of the present invention;

FIG. 3 is a schematic view of a bottom cover according to a preferred embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a measuring assembly according to a preferred embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of the preferred embodiment of the present invention in a first direction;

fig. 6 is a schematic cross-sectional view of the second preferred embodiment of the present invention.

In the figure:

1. an upper shell; 11. displaying the slot position; 12. a display screen; 13. a top cover; 14. a display aperture; 15. a bearing;

2. a middle shell; 21. teeth; 22. a rubber ring; 23. an anti-slip groove;

3. a lower case; 31. a battery slot; 32. a bottom cover; 33. a switch button; 34. unlocking the block;

4. a measurement assembly; 41. a gear; 42. a magnetic sheet;

5. a control panel; 51. an inductor; 52. a battery position; 53. a battery; 54. the switch is activated.

Detailed Description

In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1-6, the utility model provides a magnetic induction curve measuring instrument, its characterized in that includes: the device comprises a lower shell 3, a middle shell 2, an upper shell 1, a measuring assembly 4 and a control panel 5; the middle shell 2 is in a hollow circular ring shape, one end of the middle shell 2 is provided with teeth 21 along the inner wall, the upper shell 1 is movably connected with one end of the middle shell 2, the middle shell 2 can do circular motion on the upper shell 1, the lower shell 3 is movably connected with one end of the middle shell 2 far away from the upper shell 1, the middle shell 2 can do circular motion on the lower shell 3, the upper shell 1 and the lower shell 3 are fixedly connected together, so that the upper shell 1 and the lower shell 3 synchronously rotate when rotating, the control panel 5 is arranged in the middle shell 2, the control panel 5 is fixedly connected with the upper shell 1, so that the control panel 5 rotates along with the upper shell 1 when rotating, the control panel 5 is electrically connected with an inductor 51, the measuring component 4 is arranged on the control panel 5 in a penetrating manner, one end of the measuring component 4 is movably connected with the upper shell 1, the other end of the measuring component 4 is movably connected with the lower shell 3, and the measuring component 4 is engaged with the teeth 21, the measuring component 4 is driven by the middle shell 2 to rotate in situ, the sensor 51 corresponds to the measuring component 4, the sensor 51 is used for sensing a rotation signal of the measuring component 4 and sending the signal to the control board 5, and the control board 5 is converted into a length display after calculation.

Further, in the present embodiment, the measuring assembly 4 includes a gear 41 and a magnetic sheet 42, the gear 41 is engaged with the teeth 21 of the middle shell 2, and one end of the gear 41 is rotatably connected to the upper shell 1, and the other end is rotatably connected to the lower shell 3, so that the gear 41 can rotate in place under the driving of the middle shell 2; the magnetic sheet 42 is arranged coaxially with the gear 41, the magnetic sheet 42 rotates along with the gear 41 when the gear 41 rotates, the magnetic sheet 42 comprises an N pole and an S pole, when the magnetic sheet 42 rotates along with the gear 41, the N pole and the S pole rotate along with the gear, the sensor 51 can sense the N pole and the S pole, and therefore the N pole and the S pole are continuously changed when the magnetic sheet 42 rotates, and the sensor 51 transmits the changed data to the control panel 5 to calculate the length.

It should be noted that the sensor 51 in this embodiment is a hall sensor, which has many advantages, such as firm structure, small volume, light weight, long service life, convenient installation, low power consumption, high frequency (up to 1MHZ), vibration resistance, and resistance to contamination or corrosion by dust, oil, water vapor, salt mist, etc. The Hall sensor has high precision and good linearity; no contact, no abrasion, clear output waveform, no jitter, no rebound and high position repetition precision (up to mum level).

Further, in this embodiment, a recessed display slot 11 is disposed in the middle of the upper case 1, a display screen 12 is installed on the display slot 11, the display screen 12 is electrically connected to the control board 5, and the control board 5 displays the converted length information visually in a digital manner through the display screen 12; a top cover 13 is fixedly connected to the top surface of the upper casing 1, the top cover 13 is fixedly connected to the upper casing 1 to cover the display screen 12, a display hole 14 is formed in the top cover 13, acrylic glass is mounted on the display hole 14, and the display hole 14 corresponds to the display screen 12, so that length information displayed on the display screen 12 can be observed through the display hole 14 from the outside, in order to enable the upper casing 1 and the lower casing 3 to rotate smoothly relative to the middle casing 2 and avoid influencing the rotation of the middle casing 2, which leads to insufficient accurate measurement, at least two bearings 15 or shaft sleeves (not shown in the figure) are arranged on the bottom surface of the upper casing 1, in this embodiment, preferably, the bearings 15 are arranged, the number of the bearings 15 is four, the adjacent bearings 15 are arranged at 90 degrees, so that the upper casing 1 abuts against the inner wall of the middle casing 2 through the four bearings 15 in four directions, and the rotation of the measuring instrument is more stable, thereby making the measurement more delicate.

Further, in this embodiment, a battery slot 31 is disposed on the lower case 3, a bottom cover 32 is connected to the bottom surface of the lower case 3 in a rotary type snap-fit connection manner, the battery slot 31 is isolated from the outside by the bottom cover 32, a switch button 33 and an unlocking block 34 are further disposed on the bottom cover 32, wherein the unlocking block 34 protrudes out of the plane of the bottom cover 32, and when unlocking is required, the bottom cover 32 can be unlocked only by rotating the unlocking block 34, and the bottom cover 32 is taken out.

Further, in this embodiment, a battery position 52 is provided on the control board 5, a battery 53 for supplying operation energy to the control board 5 is provided in the battery position 52, the battery 53 is electrically connected to the control board 5, and the battery position 52 corresponds to the battery slot hole 31 in the lower cover, so as to facilitate replacement of the battery 53, and a start switch 54 is provided on the control board 5, the start switch 54 corresponds to the switch button 33, and the operation of the measuring instrument is started by pressing the switch button 33.

Further, for increasing the frictional force between measuring apparatu and the quilt survey object, make measured numerical value more accurate, be equipped with the cover on the outer wall of mesochite 2 and be equipped with rubber circle 22 to increase and survey the frictional force between the object, for preventing when measuring comparatively glossy object, the phenomenon of skidding appears, seted up a plurality of antiskid groove 23 on rubber circle 22, through antiskid groove 23 increase with the frictional force of quilt survey object, and then promote measuring precision.

To sum up, the utility model installs the gear 41 and the magnetic sheet 42 coaxially arranged in the measuring instrument, and is provided with the inductor 51 corresponding to the magnetic sheet 42, the gear 41 and the magnetic sheet 42 are driven to rotate by the middle shell 2, so that the N pole and the S pole on the magnetic sheet 42 are continuously changed, and the changing signals of the N pole and the S pole induced by the inductor 51 are converted into length display by the control panel 5; the rotation of magnetic sheet 42 is avoided hindering in contactless response to promote the measuring precision, and long service life does not have wearing and tearing for a long time.

The above examples merely represent one or more embodiments of the present invention, which are described in detail and concrete, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. A magnetic induction curve measuring instrument, comprising: the device comprises a lower shell, a middle shell, an upper shell, a measuring assembly and a control panel; the mesochite is the ring form, the one end of mesochite is equipped with the tooth along the inner wall, the epitheca with the one end swing joint of mesochite, the inferior valve with the mesochite is kept away from the one end swing joint of epitheca, the control panel is located in the mesochite, be connected with the inductor on the control panel, measuring unit locates on the control panel, measuring unit's one end with epitheca swing joint, the other end with inferior valve swing joint, measuring unit with tooth meshing, the inductor with measuring unit corresponds.

2. The magnetic induction curve measuring instrument of claim 1, wherein the measuring assembly comprises: gears, magnetic sheets; the gear with the tooth meshes mutually, the one end of gear with epitheca swing joint, the other end with inferior valve swing joint, the magnetic sheet includes at least a pair of N utmost point and S utmost point, the magnetic sheet with the gear coaxial setting, the magnetic sheet with the inductor is corresponding.

3. The magnetic induction curve measuring instrument according to claim 1, wherein a display slot is formed in the middle of the upper housing, a display screen is disposed in the display slot, the display screen is electrically connected to the control board, a top cover is further connected to the top surface of the upper housing, a display hole is formed in the top cover, the display hole corresponds to the display screen, at least two bearings or shaft sleeves are disposed on the bottom surface of the upper housing, and each bearing or shaft sleeve is respectively abutted to the inner wall of the middle housing.

4. The magnetic induction curve measuring instrument of claim 1, wherein the lower case is provided with a battery slot, the bottom surface of the lower case is connected with a bottom cover in a buckling manner, the bottom cover is provided with a switch button and an unlocking block, and the unlocking block protrudes out of the plane of the bottom cover.

5. The magnetic induction curve measuring instrument according to claim 4, wherein a battery is further disposed on the control board, a battery is disposed on the battery, the battery is electrically connected to the control board, the battery corresponds to the battery slot, and a start switch is further disposed on the control board, the start switch corresponds to the switch button.

6. The magnetic induction curve measuring instrument according to claim 1, wherein a rubber ring is further sleeved on the outer wall of the middle shell, and a plurality of anti-slip grooves are further formed in the rubber ring.

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