CN211668408U - Aperture measuring scale - Google Patents
Aperture measuring scale Download PDFInfo
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- CN211668408U CN211668408U CN202020177601.0U CN202020177601U CN211668408U CN 211668408 U CN211668408 U CN 211668408U CN 202020177601 U CN202020177601 U CN 202020177601U CN 211668408 U CN211668408 U CN 211668408U
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Abstract
The utility model discloses an aperture dipperstick, it includes: the two sides of the shell are symmetrically provided with two through holes; the two magnet blocks are positioned in the shell, and one magnet block is correspondingly arranged in one through hole; two magnetic conduction blocks, which are both positioned between the two magnet blocks; the two arc-shaped clamping plates are symmetrically distributed and sleeved outside the shell, and one magnet block is correspondingly provided with one arc-shaped clamping plate; a squeeze bar including a first portion and a second portion; the sleeve is coaxially sleeved outside the second part. The utility model discloses can reduce the degree of difficulty in measuring the aperture, the protection hole pore wall prevents the fish tail, improves detection efficiency.
Description
Technical Field
The utility model relates to a measure. More specifically, the utility model relates to an aperture dipperstick.
Background
The diameter size of our often needs the inspection hole in daily work, we all accomplish the detection with slide caliper or the higher plunger of precision at ordinary times, use slide caliper to prop open measuring card with the slide caliper top and measure the hole size usually when using the test, it can be great to measure slide caliper's detection error like this, if do not block the diameter of round hole, then it is inaccurate to measure the aperture, also be difficult to measure accurate size if the round hole processing is nonstandard, so hardly satisfy the demand in accurate measurement aperture, the plunger measures the round hole more accurately, but need the attempt of a plunger, this process is more time-consuming, be not convenient for the round hole diameter detection work of large batch pore wall, plug in and pull out the in-process simultaneously and can cause the pore wall fish tail, however the precision hole requirement all is higher, the product will be scrapped like this.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims at providing an aperture dipperstick, it can reduce the degree of difficulty in measuring the aperture, and the protection hole pore wall prevents the fish tail, improves detection efficiency.
In order to achieve these objects and other advantages in accordance with the present invention, there is provided an aperture measuring ruler, comprising:
the shell is of a hollow cylinder structure with one open end, and two through holes are symmetrically formed in two sides of the circumferential surface of the shell;
the two magnet blocks are positioned inside the shell, the two magnet blocks are magnetically attracted, and one magnet block is correspondingly arranged in one through hole;
the two magnetic conduction blocks are positioned between the two magnet blocks, and any magnetic conduction block is fixedly connected with one side, close to the center of the shell, of the magnet block corresponding to the magnetic conduction block; the middle parts of two side surfaces of the two magnetic conduction blocks, which are contacted with each other and are close to one end of the shell, are provided with arc-shaped notches, and the two arc-shaped notches form a groove;
the two arc-shaped clamping plates are respectively and symmetrically sleeved outside the other end of the shell, one magnet block is correspondingly provided with one arc-shaped clamping plate, the radian of any one arc-shaped clamping plate is matched with the radian of the outer wall of the circumferential surface of the shell, and the other side of any one magnet block, which is far away from the center of the shell, penetrates through the through hole corresponding to the magnet block and is fixedly connected with the arc-shaped clamping plate corresponding to the magnet block;
the extrusion rod comprises a first part of a conical structure and a second part of a cylindrical structure which are integrally formed along an axis, the extrusion rod is coaxially arranged with the shell, the generatrix length of the first part is opposite to the radius length of the bottom surface of the first part, the first part is positioned in the shell, and the free end of the first part can be accommodated in the groove; the circumferential surface of the second part is provided with a first scale mark extending along the axial direction of the second part;
the sleeve is coaxially sleeved outside the second part and positioned outside the shell, the sleeve is fixedly connected with the end face of one end of the shell, and the circumferential outer wall of the second part is in threaded connection with the circumferential inner wall of the sleeve; a second scale mark is annularly arranged on the circumferential surface of one end, far away from the shell, of the sleeve, the second scale mark comprises 50 grids, and the scale value of the second scale mark is 1/50 of the scale value of the first scale mark; when the extrusion rod rotates for one circle around the circumferential direction, the distance of the extrusion rod moving along the axial direction of the sleeve relative to the sleeve is the scale value of the first scale mark.
Preferably, in the aperture measuring ruler, an annular first baffle is arranged inside the housing, the center of the circle of the first baffle is located on the axis of the housing and located between the two through holes and the sleeve, and the inner diameter of the first baffle is larger than the diameter of the bottom surface of the first part;
an annular second baffle is fixedly sleeved outside one end, close to the first part, of the second part, the second baffle is located inside the shell, and the outer diameter of the second baffle is smaller than the diameter of the shell, larger than the inner diameter of the sleeve and larger than the inner diameter of the first baffle; the distance between the first baffle and the bottom surface of the first part is larger than the distance between the second baffle and the groove.
Preferably, the aperture measuring ruler, institute telescopic being close to set firmly annular connecting piece on the terminal surface of the other end of casing, the diameter of the excircle and the interior circle of connecting piece, respectively with the diameter of the excircle and the interior circle of casing equals, the connecting piece pass through the bolt with the terminal surface fixed connection of the one end of casing.
Preferably, the aperture measuring ruler is characterized in that the two magnet blocks are neodymium iron boron magnets.
Preferably, the aperture measuring ruler is characterized in that the two magnetic conduction blocks are made of magnetic conduction steel plates.
Preferably, the two arc-shaped clamping plates of the aperture measuring scale are made of a non-magnetic 304 stainless steel material.
Preferably, the first portion and the second portion of the pore size measuring ruler are made of non-magnetic alloy materials.
Preferably, in the pore size measuring ruler, the scale value of the first scale mark is 0.5 mm; the scale value of the second scale mark is 0.01 mm.
Preferably, any one of the magnetic conduction blocks and the corresponding magnet block of the aperture measuring scale are fixed by strong glue; any arc-shaped clamping plate is fixedly connected with the corresponding clamping plate through strong glue.
Preferably, the aperture measuring scale is characterized in that a rotating handle is coaxially arranged at the free end of the second part, and reticulate patterns are arranged on the rotating handle and the outer wall of the circumferential surface of the sleeve.
The utility model discloses at least, include following beneficial effect: the utility model discloses a rotatory extrusion stem of relative casing, make the first part of extrusion stem open two magnet pieces extrusion, and then make two arc cardboards extruded to with wait to detect the pore wall contact, and then realize the measurement to the aperture, measure and accomplish rear direction rotatory extrusion stem, the first part is putd aside from between two magnet pieces, two magnet pieces are under the effort that magnetism was inhaled mutually, towards the direction return that is close to each other, the dipperstick is put in the hole, measure the aperture and take out from the hole, all can not cause the damage to the pore wall, can reduce the degree of difficulty in measuring the aperture, the protection hole pore wall prevents the fish tail, and the detection efficiency is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a perspective view of an aperture measuring ruler according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pore size measuring ruler according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pore size measuring ruler according to another embodiment of the present invention;
fig. 4 is a cross-sectional view of an aperture measuring ruler according to another embodiment of the present invention;
fig. 5 is a cross-sectional view of an aperture measuring ruler according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of the housing according to another embodiment of the present invention.
Description of reference numerals: 1-shell 11-first baffle 12-through hole 2-magnet block 3-magnetic conduction block 31-groove 4-snap-gauge 51-second part 511-first scale mark 512-second baffle 513-handle 6-sleeve 61-second scale mark 7-connecting piece
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-6, the utility model provides an aperture dipperstick, it includes:
the shell is of a hollow cylinder structure with one open end, and two through holes are symmetrically formed in two sides of the circumferential surface of the shell;
the two magnet blocks are positioned inside the shell, the two magnet blocks are magnetically attracted, and one magnet block is correspondingly arranged in one through hole;
the two magnetic conduction blocks are positioned between the two magnet blocks, and any magnetic conduction block is fixedly connected with one side, close to the center of the shell, of the magnet block corresponding to the magnetic conduction block; the middle parts of two side surfaces of the two magnetic conduction blocks, which are contacted with each other and are close to one end of the shell, are provided with arc-shaped notches, and the two arc-shaped notches form a groove;
the two arc-shaped clamping plates are respectively and symmetrically sleeved outside the other end of the shell, one magnet block is correspondingly provided with one arc-shaped clamping plate, the radian of any one arc-shaped clamping plate is matched with the radian of the outer wall of the circumferential surface of the shell, and the other side of any one magnet block, which is far away from the center of the shell, penetrates through the through hole corresponding to the magnet block and is fixedly connected with the arc-shaped clamping plate corresponding to the magnet block;
the extrusion rod comprises a first part of a conical structure and a second part of a cylindrical structure which are integrally formed along an axis, the extrusion rod is coaxially arranged with the shell, the generatrix length of the first part is opposite to the radius length of the bottom surface of the first part, the first part is positioned in the shell, and the free end of the first part can be accommodated in the groove; the circumferential surface of the second part is provided with a first scale mark extending along the axial direction of the second part;
the sleeve is coaxially sleeved outside the second part and positioned outside the shell, the sleeve is fixedly connected with the end face of one end of the shell, the circumferential outer wall of the second part is in threaded connection with the circumferential inner wall of the sleeve, external threads are machined on the circumferential outer wall of the second part, and internal threads matched with the external threads on the second part are machined on the circumferential inner wall of the sleeve; a second scale mark is annularly arranged on the circumferential surface of one end, far away from the shell, of the sleeve, one end, far away from the shell, of the sleeve is folded towards the direction close to the center line of the sleeve, the second scale mark comprises 50 grids, and the scale value of the second scale mark is 1/50 of the scale value of the first scale mark; when the extrusion rod rotates for one circle around the circumferential direction, the distance of the extrusion rod moving relative to the sleeve along the axial direction of the sleeve is the scale value of a first scale mark; the pitch of the external thread on the second part is equal to the scale value of the first grid.
In the technical scheme, the size of any through hole is larger than that of the magnet block opposite to the through hole, so that any magnet block can pass through the through hole corresponding to the through hole to move to the outside of the shell under the extrusion action of the extrusion rod; a magnetic conduction block is arranged between the two magnet blocks, so that the first part is prevented from being directly contacted with the magnet blocks to cause abrasion of the magnet blocks;
before measurement, the two magnetic conduction blocks are contacted with each other, the two arc notches form a groove for accommodating the free end (the top of the cone) of the first part, one side surface of any magnet block, which is far away from the center of the shell, is arc-shaped and is flush with the outer wall of the circumferential surface of the shell, and any arc-shaped clamping plate is tightly attached to the outer wall of the circumferential surface of the shell; the free end of the first part is not contacted with the magnetic conduction block;
the diameter of the measuring hole of the utility model is larger than the excircle diameter of the arc-shaped clamping plate and smaller than the sum of the length of the bus of the first part and the excircle diameter of the arc-shaped clamping plate;
when performing the aperture measurement:
firstly, rotating the free end of the second part to adjust the 0 scale of the first scale mark to be flush with the end face of one end of the sleeve, and meanwhile, the 0 scale marks of the first scale mark and the second scale mark are positioned on the same straight line, and at the moment, the free end (the top of the cone) of the first part is just accommodated in the groove and is in contact with the magnetic conduction blocks, but does not generate extrusion force on the two magnetic conduction blocks;
then, one end of the shell is placed inside the hole to be measured, one end of the sleeve, far away from the shell, is located outside the hole to be measured, one hand holds the sleeve, the other hand rotates the free end of the second part, the second part is in threaded connection with the sleeve, when the second part is rotated, the second part can drive the extrusion rod to rotate and approach the sleeve and the shell, the conical top of the first part gradually penetrates between the two magnetic conduction blocks in the process of rotating the second part, the two magnetic conduction blocks are extruded towards the direction far away from each other, the two magnet blocks are further driven to move towards the direction far away from each other, any magnet block penetrates through the through hole corresponding to the magnet block under the action of the extrusion force to move to the outside of the shell, and the two arc-shaped clamping plates are further driven to move towards the direction far away from the shell;
rotating the second part until the second part is completely rotated and fixed, wherein the arc-shaped outer walls of the two arc-shaped clamping plates are tightly attached to the inner wall of the hole to be measured; after the second part rotates to a position, reading a scale a on the first scale mark corresponding to the end face of one end of the sleeve, and a scale b on the second scale mark on the same straight line with the first scale mark; the scale mark of the index a is flush with the end face of one end of the sleeve or slightly higher than the end face of one end of the sleeve;
aperture reading principle: the distance of the extrusion rod moving along the axis direction of the second part is a scale value of a first scale mark every time the second part rotates for one circle, and the distance of the first part moving along the axis direction is equal to the distance of the two magnetic conduction blocks moving along the first part in the radial direction because the radius of the generatrix of the first part is equal to the radius of the bottom surface of the first part, and the distance of the arc-shaped clamping plate moving along the first part in the radial direction is also equal to the distance of the first part moving along the axis direction; because the second scale mark which is closed in an annular way has 50 divisions, and the scale value of the second scale mark is 1/50 of the scale value of the first scale mark, the second part drives the extrusion rod to move along the axial direction of the extrusion rod for one division when rotating relative to the second scale mark;
based on the analysis, the distance of the first part extruding any magnetic conduction block to move along the radial direction of the first part is equal to the index a of the first scale line which is flush with the circumferential surface of one end of the sleeve; therefore, the radius of the hole to be measured is equal to the sum of the radius a and the radius of the arc-shaped clamping plate, namely c; and meanwhile, the index b can be used for estimating and reading a decimal number, the measurement precision is improved, when the scale mark of the index a is flush with the circumferential surface of one end of the sleeve, the radius of the hole to be measured is c plus b, and if the scale mark of the index a is slightly higher than the circumferential surface of one end of the sleeve, the radius of the hole to be measured is c-1 plus b.
In another technical scheme, in the aperture measuring scale, an annular first baffle is arranged inside the shell, the circle center of the first baffle is located on the axis of the shell and between the two through holes and the sleeve, and the inner diameter of the first baffle is larger than the diameter of the bottom surface of the first part;
an annular second baffle is fixedly sleeved outside one end, close to the first part, of the second part, the second baffle is located inside the shell, and the outer diameter of the second baffle is smaller than the diameter of the shell, larger than the inner diameter of the sleeve and larger than the inner diameter of the first baffle; the distance between the first baffle and the bottom surface of the first part is larger than the distance between the second baffle and the groove.
In the technical scheme, the arrangement of the first baffle and the second baffle is to avoid over-rotation of the second part, so that the first part is separated from the shell, or the conical top of the first part is abutted against the inner wall of the end face at the other end of the shell, so that the first part is damaged to the shell; when second baffle and sleeve butt, the circular cone top and the magnetic conduction piece contactless of first portion, when second baffle and first baffle butt, the first portion gets into between two magnetic conduction pieces completely, and the circular cone top of first portion and the other end terminal surface contactless of casing, and the distance of two arc cardboard is the biggest this moment.
In another technical scheme, the aperture measurement chi, telescopic being close to set firmly annular connecting piece on the terminal surface of the other end of casing, the diameter of the excircle and the interior circle of connecting piece, respectively with the diameter of the excircle and the interior circle of casing equals, the connecting piece pass through the bolt with the terminal surface fixed connection of the one end of casing. The equipment is convenient to manufacture, and meanwhile, the sleeve and the shell are convenient to disassemble in the later period.
In another technical scheme, the aperture measuring ruler is characterized in that the two magnet blocks are neodymium iron boron magnets.
In another technical scheme, the aperture measuring scale is characterized in that the two magnetic conduction blocks are made of magnetic conduction steel plates.
In another technical scheme, the two arc-shaped clamping plates of the aperture measuring scale are made of a non-magnetic 304 stainless steel material.
In another technical solution, the first portion and the second portion of the aperture measuring scale are made of non-magnetic alloy materials.
In another technical scheme, in the aperture measuring ruler, the scale value of a first cell of the first scale mark is 0.5 mm; the scale value of the second grid of the second scale mark is 0.01 mm. Every time the extrusion rod rotates one second division, the second division represents that the extrusion rod moves 0.01mm along the axial direction of the extrusion rod, and the measurement result can be accurate to the thousand decimals of millimeters. The pitch of the external thread of the second part of the extrusion stem is now 0.5 mm.
In another technical scheme, in the aperture measuring ruler, any magnetic conduction block and the magnet block corresponding to the magnetic conduction block are fixedly bonded through strong glue; any arc-shaped clamping plate is fixedly connected with the corresponding clamping plate through strong glue. The strong glue has good bonding and fixing effect, simple manufacturing process and lower manufacturing cost.
In another technical scheme, in the aperture measuring scale, a rotating handle is coaxially arranged at the free end of the second part of the extrusion rod, and reticulate patterns are arranged on the rotating handle and the outer wall of the circumferential surface of the sleeve. The rotating handle is rotated to drive the extrusion rod to rotate, so that the extrusion rod is driven to move along the axial direction relative to the sleeve and the shell; the design of twist grip is convenient to operate, sets up the reticulation annular knurl and avoids sleeve and twist grip to skid when rotating relatively.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. Pore-size dipperstick, its characterized in that, it includes:
the shell is of a hollow cylinder structure with one open end, and two through holes are symmetrically formed in two sides of the circumferential surface of the shell;
the two magnet blocks are positioned inside the shell, the two magnet blocks are magnetically attracted, and one magnet block is correspondingly arranged in one through hole;
the two magnetic conduction blocks are positioned between the two magnet blocks, and any magnetic conduction block is fixedly connected with one side, close to the center of the shell, of the magnet block corresponding to the magnetic conduction block; the middle parts of two side surfaces of the two magnetic conduction blocks, which are contacted with each other and are close to one end of the shell, are provided with arc-shaped notches, and the two arc-shaped notches form a groove;
the two arc-shaped clamping plates are respectively and symmetrically sleeved outside the other end of the shell, one magnet block is correspondingly provided with one arc-shaped clamping plate, the radian of any one arc-shaped clamping plate is matched with the radian of the outer wall of the circumferential surface of the shell, and the other side of any one magnet block, which is far away from the center of the shell, penetrates through the through hole corresponding to the magnet block and is fixedly connected with the arc-shaped clamping plate corresponding to the magnet block;
the extrusion rod comprises a first part of a conical structure and a second part of a cylindrical structure which are integrally formed along an axis, the extrusion rod is coaxially arranged with the shell, the generatrix length of the first part is opposite to the radius length of the bottom surface of the first part, the first part is positioned in the shell, and the free end of the first part can be accommodated in the groove; the circumferential surface of the second part is provided with a first scale mark extending along the axial direction of the second part;
the sleeve is coaxially sleeved outside the second part and positioned outside the shell, the sleeve is fixedly connected with the end face of one end of the shell, and the circumferential outer wall of the second part is in threaded connection with the circumferential inner wall of the sleeve; a second scale mark is annularly arranged on the circumferential surface of one end, far away from the shell, of the sleeve, the second scale mark comprises 50 grids, and the scale value of the second scale mark is 1/50 of the scale value of the first scale mark; when the extrusion rod rotates for one circle around the circumferential direction, the distance of the extrusion rod moving along the axial direction of the sleeve relative to the sleeve is the scale value of the first scale mark.
2. The aperture measuring ruler of claim 1 wherein the housing has an annular first baffle disposed therein, the first baffle having a center located on the axis of the housing and located between the two through holes and the sleeve, the first baffle having an inner diameter greater than the diameter of the bottom surface of the first portion;
an annular second baffle is fixedly sleeved outside one end, close to the first part, of the second part, the second baffle is located inside the shell, and the outer diameter of the second baffle is smaller than the diameter of the shell, larger than the inner diameter of the sleeve and larger than the inner diameter of the first baffle; the distance between the first baffle and the bottom surface of the first part is larger than the distance between the second baffle and the groove.
3. The aperture measuring scale according to claim 2, wherein an annular connecting member is fixedly arranged on the end surface of the sleeve close to the other end of the housing, the diameters of the outer circle and the inner circle of the connecting member are respectively equal to the diameters of the outer circle and the inner circle of the housing, and the connecting member is fixedly connected with the end surface of one end of the housing through a bolt.
4. The aperture measurement ruler of claim 3, wherein both magnets are neodymium iron boron magnets.
5. The pore size measuring scale according to claim 4, wherein both magnetic conductive blocks are made of magnetic conductive steel plate.
6. The pore size measuring scale of claim 5, wherein the two arc-shaped clamping plates are made of non-magnetic 304 stainless steel.
7. The pore size measurement ruler of claim 6 wherein said first portion and said second portion are both of magnetically non-conductive alloy material.
8. The aperture measurement ruler of claim 7, wherein the first graduation mark has a scale value of 0.5 mm; the scale value of the second scale mark is 0.01 mm.
9. The pore size measuring scale according to claim 8, wherein any one of the magnetic conductive blocks and the corresponding magnet block are fixed by strong glue; any arc-shaped clamping plate is fixedly connected with the corresponding clamping plate through strong glue.
10. The aperture measurement ruler of claim 9 wherein the free end of the second portion is coaxially provided with a twist grip, and wherein the twist grip and the circumferential outer wall of the sleeve are provided with knurled knurls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177601.0U CN211668408U (en) | 2020-02-17 | 2020-02-17 | Aperture measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020177601.0U CN211668408U (en) | 2020-02-17 | 2020-02-17 | Aperture measuring scale |
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| Publication Number | Publication Date |
|---|---|
| CN211668408U true CN211668408U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020177601.0U Active CN211668408U (en) | 2020-02-17 | 2020-02-17 | Aperture measuring scale |
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| Country | Link |
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| CN (1) | CN211668408U (en) |
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- 2020-02-17 CN CN202020177601.0U patent/CN211668408U/en active Active
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