CN209431985U - Vernier caliper - Google Patents
Vernier caliper Download PDFInfo
- Publication number
- CN209431985U CN209431985U CN201822275857.0U CN201822275857U CN209431985U CN 209431985 U CN209431985 U CN 209431985U CN 201822275857 U CN201822275857 U CN 201822275857U CN 209431985 U CN209431985 U CN 209431985U
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- CN
- China
- Prior art keywords
- main scale
- vernier
- fixed main
- slide
- slide bar
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of vernier calipers, including fixed main scale, it is set on fixed main scale and slides the vernier slide rule being connected with fixed main scale, the one end on the head of fixed main scale fixed main scale head opposite with vernier slide rule is respectively arranged with interior measuring jaw, interior measuring jaw on fixed main scale and vernier slide rule is oppositely arranged, the side surface that opposite interior measuring jaw is away from each other is measuring surface, interior measuring jaw includes the fixing seat being detachably connected on fixed main scale or vernier slide rule, the side that fixing seat deviates from fixed main scale is provided with slide bar, the axis of slide bar and the axis of fixed main scale are vertical setting, the detection pawl of the length direction sliding along slide bar is provided on slide bar.The utility model have interior measuring jaw length it is adjustable, so as to measure tube body deep part internal diameter effect.
Description
Technical field
The utility model relates to the technical fields of measurer, more particularly, to a kind of vernier caliper.
Background technique
Vernier caliper is a kind of higher mechanical gauge of precision.Vernier caliper is by fixing main scale and being attached on fixed main scale
Slidable vernier slide rule two parts are constituted.Fix main scale generally in millimeters, the fixation main scale and vernier of vernier caliper
There are two secondary measuring claws on slide rule, is internal measure-hand and exterior measuring measuring jaw respectively, internal measure-hand is commonly used to measurement internal diameter, exterior measuring measuring jaw
Commonly used to measure length and outer diameter.Depthometer connects together with vernier scale, can survey the depth of slot and cylinder.
Its internal measure-hand length of common vernier caliper is fixed and invariable, therefore is measured in the internal diameter to tube body
When, the nozzle position of tube body can only be measured, when measuring the internal diameter of tube body deep part, because internal measure-hand length is inadequate, vernier
The internal measure-hand of slide calliper rule cannot extend into the specified location of tube body, lead to not measure.
Utility model content
The purpose of the utility model is to provide a kind of vernier calipers, and the length with interior measuring jaw is adjustable, so as to survey
The advantages of measuring the internal diameter of tube body deep part.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of vernier caliper including fixed main scale, is set on fixed main scale and slides the vernier being connected with fixed main scale
One end of slide rule, the head of fixed main scale fixed main scale head opposite with vernier slide rule is respectively arranged with interior measuring jaw, is located at and fixes
Interior measuring jaw on main scale and vernier slide rule is oppositely arranged, and the side surface that opposite interior measuring jaw is away from each other is measuring surface, interior measuring jaw
Including the fixing seat being detachably connected on fixed main scale or vernier slide rule, the side that fixing seat deviates from fixed main scale is provided with cunning
The axis of bar, the axis of slide bar and fixed main scale is vertical setting, and the length direction sliding along slide bar is provided on slide bar
Detect pawl.
By using above-mentioned technical proposal, when needing to detect the internal diameter of tube body depth higher depth, detection pawl is pulled, makes to examine
Measuring jaw moves on slide bar, to extend the length of interior measuring jaw, can reach the deeper position of tube body depth, thus to pipe
The internal diameter of body measures, and after detection, will test pawl and is pushing back to original position, facilitate and carried.
The utility model is further arranged to: offer the slide opening passed through for slide bar on detection pawl, the surface of slide bar along
The length direction of slide bar is provided with several latches being laterally arranged, and latch is equilateral triangular prism, detects being internally provided with for pawl
The mounting hole communicated with slide opening, the axis of mounting hole and the axis of slide opening perpendicular shape are provided with block tongue in mounting hole and push away
It is extend into slide opening in dynamic block tongue self installation hole and snaps onto the elastic component between latch adjacent on slide bar in slot.
By using above-mentioned technical proposal, spring pushes block tongue, extend into block tongue in the latch on slide bar, thus will inspection
The position of measuring jaw is fixed, and keeps detection pawl immovable when measuring tube body, to guarantee the accuracy of measurement accuracy.
The utility model is further arranged to: block tongue is sharp end and the latch adjacent on slide bar towards one end of slide bar
Between the shape of slot match.
By using above-mentioned technical proposal, increase the contact area between block tongue and slide bar, to make to detect pawl stress not
It is easily mobile.
The utility model is further arranged to: slide opening is square hole, and slide bar is cross section and the body of rod that square hole matches.
By using above-mentioned technical proposal, avoid detecting the case where pawl rotates.
The utility model is further arranged to: detecting the detection faces of pawl, one end close to fixing seat is provided with escape groove.
By using above-mentioned technical proposal, reduce detection pawl and inboard wall of tube body contact area to be measured, to avoid detection pawl
When detection, the case where nozzle of tube body interferes detection pawl.
The utility model is further arranged to: the detection faces of interior measuring jaw are in line style.
By using above-mentioned technical proposal, reduce detection pawl and inboard wall of tube body contact area to be measured, to submit detection pawl
The accuracy of detection data.
The utility model is further arranged to: vernier slide bar tooth thread is connected with clamping screw.
By using above-mentioned technical proposal, after measuring the data of needs, vernier slide rule is touched outside people's will in order to prevent,
Error in reading is caused, clamping screw is arranged in vernier slide rule can be by vernier slide rule by twisting clamping screw after having measured data
It is fixed on current location, error in reading caused by being avoided to a certain extent because of unexpected touch.
The utility model is further arranged to: being wholely set thumb wheel on vernier slide rule.
By using above-mentioned technical proposal, thumb wheel facilitates thumb to stir vernier slide rule, and in order to increase thumb and thumb wheel it
Between friction to be more convenient its use, thumb wheel is designed to the structure with out-of-flatness arcwall face.
The utility model is further arranged to: the Sounding Rod parallel with fixed main scale is fixed on vernier slide rule.
By using above-mentioned technical proposal, need to measure certain end face relative to it is another with reference to end face apart from when, only need by
Fixed main scale is vertically placed on the plane of reference, then vernier slide rule is skidded off from zero graduation line position and drives Sounding Rod from fixation
The tail portion of main scale is stretched out, until Sounding Rod touches measured surface.
The utility model is further arranged to: the tail portion of fixed main scale is provided with baffle.
By using above-mentioned technical proposal, it is therefore prevented that vernier slide rule slides from fixed main scale during sliding.
In conclusion the advantageous effects of the utility model are as follows:
1., by position of the measuring jaw on slide bar in adjusting, making the length of interior measuring jaw when measuring the diameter of tube body higher depth
Degree lengthens to ensure that vernier caliper can be measured that the specified location of internal diameter of tube body；
2. by the cooperation of the latch on block tongue and slide bar, so that the position that will test pawl is fixed, make its not vulnerable to
The variation of power generation position.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vernier caliper；
Fig. 2 is the structural schematic diagram detected under pawl and fixing seat discrete state；
Fig. 3 is the cross-sectional view for detecting pawl and slide bar junction；
Fig. 4 is the partial enlarged view at the position A in Fig. 3.
In figure, 1, fixed main scale；11, sliding slot；2, vernier slide rule；21, thumb wheel；3, outer measuring jaw；4, interior measuring jaw；41, fixed
Seat；42, pawl is detected；421, slide opening；422, mounting hole；423, escape groove；43, slide bar；431, latch；44, block tongue；45, spring；
46, fixed block；5, clamping screw；6, Sounding Rod；7, baffle.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is a kind of vernier caliper disclosed by the utility model, including fixed main scale 1, fixed main scale 1 is surface
Long strip-board shape structure with range scale line.Fixed main scale 1 close to one end of zero graduation line is head, the opposite other end is
The tail portion of fixed main scale 1.Vernier slide rule 2 is arranged on fixed main scale 1, vernier slide rule 2 is connected with the fixed sliding of main scale 1.Vernier
The one end of zero graduation line on fixed main scale 1 of slide rule 2 is head, and the other end is the tail portion of vernier slide rule 2.
The head of fixed main scale 1 and vernier slide rule 2 be provided with a pair of interior measuring jaw 4 for bore dia in measurement pipe body with
And it is a pair of for measuring the outer measuring jaw 3 of outer diameter and end face spacing, measuring jaw 4 is fixedly installed on fixed main scale respectively in one pair of them
1 and vernier slide rule 2 head side, a pair of outer measuring jaw 3 is integrally formed at fixed main scale 1 and vernier slide rule 2 respectively
The other side on head.The opposite surface of opposite outer measuring jaw 3 is the measuring surface of outer measuring jaw 3, the table that opposite interior measuring jaw 4 is away from each other
Face is the measuring surface of interior measuring jaw 4.When vernier slide rule 2 slides to the dead-center position of fixed main scale 1, the measuring surface of two outer measuring jaws 3
It will be close to mutually, the measuring surface of two interior measuring jaws 4 staggeredly adjacent will paste.
Referring to shown in Fig. 2, Fig. 3, interior measuring jaw 4 includes the fixing seat 41 being bolted on fixed main scale 1, fixing seat
41 are bolted on fixed main scale 1, so as to disassemble interior measuring jaw 4 from fixed main scale 1.In fixing seat 41
Side away from fixed main scale 1 is provided with outwardly directed slide bar 43, and wherein the axis of slide bar 43 and the axis of fixed main scale 1 are in
It is vertically arranged.It is welded and fixed between slide bar 43 and fixing seat 41 and is connected or is integrally formed.Slide bar 43 is the bar that cross section is in rectangle
Body.The detection pawl 42 moved along the length direction of slide bar 43 is provided on slide bar 43.
The slide opening 421 passed through for slide bar 43 is offered on detection pawl 42, slide opening 421 is square hole.The axis of slide opening 421
It is located along the same line with the axis of slide bar 43, and the cross section of slide opening 421 and the cross-sectional shape size of slide bar 43 match.
It is connected by slide opening 421 to will test 42 sets of pawl on slide bar 43 and be slided with slide bar 43.
Several transverse directions are provided with simultaneously along the length direction of slide bar 43 on a wherein side surface for slide bar 43 in conjunction with Fig. 4
The latch 431 being placed equidistant with, is integrally formed between latch 431 and slide bar 43.The shape of latch 431 is equilateral triangular prism, from
And make the section equilateral triangle of the slot between adjacent latch 431.Detection pawl 42 on offer in slide opening 421
The axis of the mounting hole 422 that portion communicates, the axis and slide opening 421 of mounting hole 422 is vertical setting.In the inside of mounting hole 422
Block tongue 44 is slidably connected, one end of 44 one end self installation hole 422 of block tongue connection slide opening 421 extend into slide opening 421 and is caught in
On to slide bar 43 between adjacent latch 431, the other end is the inside of mounting hole 422.Block tongue 44 is extend into inside slide opening 421
One end is pointed and shape of the slot between adjacent latch 431 matches.
Deviate from one end of slide bar 43 in block tongue 44, is disposed with spring 45 positioned at the inside of mounting hole 422 and fixes
Block 46, wherein fixed block 46 is fixed on one end inside of the mounting hole 422 far from slide opening 421 and fixed block 46 does not expose mounting hole
422.The both ends of spring 45 are welded and fixed and are connected with spring 45 and fixed block 46 respectively.
When needing the position to detection pawl 42 to be adjusted, detection pawl 42 is pulled, makes it along the length of slide bar 43
Degree direction is moved, and as detection pawl 42 is mobile, the latch 431 on slide bar 43 is located at peace when passing through mounting hole 422
Block tongue 44 in dress hole 422 is by the inclined-plane limitation of latch 431 to be retracted in mounting hole 422, when latch passes through mounting hole 422
Afterwards, block tongue 44 is released from mounting hole 422 again by the elastic force of spring 45 and matches with slide bar 43.Block tongue 44 is more by repeating
It secondary retraction mounting hole 422 and is popped up from mounting hole 422, is adjusted to ideal position to make to detect pawl 42.Block tongue 44 passes through bullet
Between the elastic card of spring 45 latch 431 adjacent on slide bar 43, make to detect pawl 42 to there is the ability in the biggish situation of exerting a force
It is moved on slide bar 43.
Referring to Fig.1, due to detection pawl 42 dedicated for measure geometry shape hole internal diameter, therefore detect 42 whole design of pawl at compared with
It is sharp shape to facilitate it to be inserted into geometric form hole, the measuring surface of interior measuring jaw 4 is linear structure and its direction and outer measuring jaw 3
Measuring surface direction it is opposite.The measuring surface of pawl 42 is detected, is located at and one end of fixing seat 41 is provided with escape groove 423,
By escape groove 423 so as to shorten the length of detection 42 measuring surface of pawl, to avoid surveying to tube body deep place diameter
When amount, the length for detecting the measuring surface of pawl 42 is too long to make the nozzle position of tube body cause to interfere to detection pawl 42, makes
In the inner side wall plate that detection pawl 42 cannot be fitted in tube body completely when detection, to guarantee that the detection for detecting pawl 42 is smart
Degree.
Referring to Fig.1, vernier slide rule 2 is stirred for convenience of thumb, thumb wheel 21 has been wholely set on vernier slide rule 2, it is contemplated that
When manpower is held fixed main scale 1 and measured, thumb is typically toward outer 3 side of measuring jaw, therefore thumb wheel 21 is also disposed at vernier slide rule 2
A distance is separated on the upper position with outer 3 side of measuring jaw and between outer measuring jaw 3, and in order to increase between thumb and thumb wheel 21
Friction to be more convenient its use, thumb wheel 21 is designed to the structure with out-of-flatness arcwall face.
After measuring the data of needs, vernier slide rule 2 is touched outside people's will in order to prevent, error in reading is caused, in vernier
The side of slide rule 2 offers tapped through hole, and clamping screw 5 is correspondingly provided in tapped through hole, after having measured data, by twisting
Current location can be fixed on for vernier slide rule 2 by turning clamping screw 5, read and missed caused by being avoided to a certain extent because of unexpected touch
Difference.
Referring to Fig. 2, vernier caliper further includes the Sounding Rod 6 for fathoming, and Sounding Rod 6 is strip slab construction,
6 one end of Sounding Rod is affixed with vernier slide rule 2 and parallel with fixed main scale 1, relative to range scale line on fixed main scale 1
One side on recess be provided with sliding slot 11, the length direction of slide bar 11 is identical as the fixation length direction direction of main scale 1.Sounding Rod
6 are embedded in sliding slot 11 and opposite can slide.When the zero graduation line of vernier slide rule 2, fixed main scale 1 is opposite, Sounding Rod 6 it is another
One end face will be concordant with the fixed tail end face of main scale 1.Need to measure certain end face relative to it is another with reference to end face apart from when, only
Fixed main scale 1 need to be vertically placed on the plane of reference, then vernier slide rule 2 is skidded off from zero graduation line position and drives Sounding Rod
6 stretch out from the tail portion of fixed main scale 1, until Sounding Rod 6 touches measured surface.And in order to prevent Sounding Rod 6 slide
In the process, beat occurs to influence measurement accuracy towards the direction for being detached from fixed main scale 1, is located at sliding slot on fixed main scale 1
11 tail portion is connected with the baffle 7 of slab construction.
The implementation principle of the present embodiment are as follows: when measuring the internal diameter of tube body deep place, pull detection pawl 42, make it in cunning
It is moved on bar 43 along the length direction of slide bar 43, so that the total length of interior measuring jaw 4 be made to extend.To enable interior measuring jaw 4
It enough extend at the deeper position of tube body.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (10)
1. a kind of vernier caliper, including fix main scale (1), be set on fixed main scale (1) and be connected with fixed main scale (1) sliding
Vernier slide rule (2), the one end on the head of the fixed main scale (1) and vernier slide rule (2) relatively fixed main scale (1) head is distinguished
Interior measuring jaw (4) are provided with, the interior measuring jaw (4) being located on fixed main scale (1) and vernier slide rule (2) is oppositely arranged, opposite interior survey
The side surface that pawl (4) is away from each other is measuring surface, it is characterised in that: the interior measuring jaw (4) includes being detachably connected on fixed master
Fixing seat (41) on ruler (1) or vernier slide rule (2), the side that the fixing seat (41) deviates from fixed main scale (1) are provided with cunning
Bar (43), the axis of the slide bar (43) and the axis of fixed main scale (1) are vertical setting, and are provided with edge on the slide bar (43)
Slide bar (43) length direction sliding detection pawl (42).
2. vernier caliper according to claim 1, it is characterised in that: offered on the detection pawl (42) for the slide bar
(43) slide opening (421) passed through, the surface of the slide bar (43) are provided with several transverse directions along the length direction of slide bar (43) and set
The latch (431) set, the latch (431) are equilateral triangular prism, and detection pawl (42) is internally provided with and the cunning
The mounting hole (422) that hole (421) communicates, the axis of the mounting hole (422) and the perpendicular shape of axis of the slide opening (421),
It is provided with block tongue (44) in the mounting hole (422) and pushes in block tongue (44) the self installation hole (422) and extend into slide opening
(421) in and the elastic component between latch (431) adjacent on slide bar (43) in slot is snapped onto.
3. vernier caliper according to claim 2, it is characterised in that: one end of block tongue (44) towards the slide bar (43) is
The shape of slot between sharp end and the latch (431) adjacent on slide bar (43) matches.
4. vernier caliper according to claim 2, it is characterised in that: the slide opening (421) is square hole, the slide bar
(43) body of rod to match for cross section and square hole.
5. vernier caliper according to claim 1, it is characterised in that: the detection faces of detection pawl (42), close to solid
One end of reservation (41) is provided with escape groove (423).
6. vernier caliper according to claim 1, it is characterised in that: the detection faces of the interior measuring jaw (4) are in line style.
7. vernier caliper according to claim 1, it is characterised in that: be threaded with locking on the vernier slide rule (2)
Bolt (5).
8. vernier caliper according to claim 1, it is characterised in that: be wholely set thumb wheel on the vernier slide rule (2)
(21)。
9. vernier caliper according to claim 1, it is characterised in that: be fixed on the vernier slide rule (2) and led with fixed
The parallel Sounding Rod (6) of ruler (1).
10. vernier caliper according to claim 1, it is characterised in that: the tail portion of the fixed main scale (1) is provided with baffle
(7)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275857.0U CN209431985U (en) | 2018-12-29 | 2018-12-29 | Vernier caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822275857.0U CN209431985U (en) | 2018-12-29 | 2018-12-29 | Vernier caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209431985U true CN209431985U (en) | 2019-09-24 |
Family
ID=67975266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822275857.0U Expired - Fee Related CN209431985U (en) | 2018-12-29 | 2018-12-29 | Vernier caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209431985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983904A (en) * | 2021-10-28 | 2022-01-28 | 中车永济电机有限公司 | Motor stator and rotor air gap value detection device and method |
-
2018
- 2018-12-29 CN CN201822275857.0U patent/CN209431985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983904A (en) * | 2021-10-28 | 2022-01-28 | 中车永济电机有限公司 | Motor stator and rotor air gap value detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20191229 |