CN207622632U

CN207622632U - The extending formula vernier caliper of exterior measuring measuring jaw

Info

Publication number: CN207622632U
Application number: CN201721366168.XU
Authority: CN
Inventors: 高炜; 于磊
Original assignee: Beijing Three Mao Construction Engineering Inspection And Identification Co Ltd
Current assignee: Beijing Three Mao Construction Engineering Inspection And Identification Co Ltd
Priority date: 2017-10-21
Filing date: 2017-10-21
Publication date: 2018-07-17
Anticipated expiration: 2027-10-21

Abstract

The utility model discloses a kind of extending formula vernier calipers of exterior measuring measuring jaw, its key points of the technical solution are that including fixed main scale, the vernier slide rule being set on fixed main scale, it is movably connected on the nestled bolt on vernier slide rule and for fixing vernier slide rule position, it is integrally formed at the side on its head of fixed main scale and vernier slide rule respectively and measuring jaw in a mutually symmetrical with couple, it is integrally formed at fixed main scale and its head other side of vernier slide rule and mutually symmetrical with one external measuring jaw respectively, depth rod affixed with vernier slide rule and for fathoming, outer measuring jaw includes the fixing end of the long strip-board shape affixed with fixed main scale, it is set in the collet that can be slid in fixing end and along its length.The utility model solves existing vernier caliper in the larger object of measurement outer diameter, and because exterior measuring measuring jaw length is inadequate, vernier caliper cannot clamp the outer surface of measured body, the problem of leading to not measure.

Description

The extending formula vernier caliper of exterior measuring measuring jaw

Technical field

The utility model is related to high-accuracy mechanical measurer, more particularly to a kind of extending formula vernier caliper of exterior measuring measuring jaw.

Background technology

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 measure 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.

Due to common vernier caliper, its exterior measuring measuring jaw length is changeless, and in view of the side of storage and carrying Just, the length of exterior measuring measuring jaw is usually less than 100mm, when measuring the larger object of outer diameter, because exterior measuring measuring jaw length is inadequate, and vernier calliper Ruler cannot clamp the outer surface of measured body, lead to not measure, it is contemplated that such situation, therefore propose a kind of new side Case.

Utility model content

The purpose of this utility model is to provide a kind of extending formula vernier caliper of exterior measuring measuring jaw, it has and can adjust exterior measuring The characteristics of measuring jaw length is to adapt to outer diameter larger measured body.

The above-mentioned purpose of the utility model technical scheme is that, a kind of extending formula of exterior measuring measuring jaw Vernier caliper, including fix main scale, the vernier slide rule being set on fixed main scale, be movably connected on vernier slide rule and for solid Determine the nestled bolt of vernier slide rule position, be integrally formed at respectively its head of fixed main scale and vernier slide rule side and mutually Measuring jaw in symmetrical one pair is integrally formed at fixed main scale and its head other side of vernier slide rule and mutually symmetrical with one respectively External measuring jaw, depth rod affixed with vernier slide rule and for fathoming, the strip that outer measuring jaw includes and fixed main scale is affixed The fixing end of plate, the collet that is set in fixing end and can slide along its length.

By using above-mentioned technical proposal, when the outer diameter for being measured body is excessive, when outer measuring jaw length is inadequate, by collet from solid Fixed end is skidded off can measure with lengthening outer measuring jaw length.

The utility model is further arranged to：The extending formula vernier caliper of exterior measuring measuring jaw further includes for limiting collet or more The limiting device of sliding, limiting device include rotational support in the shaft on collet, the gear that is fixed in shaft, fixing end tool There is a flank of tooth being meshed with gear, the flank of tooth of gear and fixing end abuts against.

By using above-mentioned technical proposal, is intermeshed and abutted with the flank of tooth of fixing end by the gear in shaft, can limited Sliding of the collet processed in fixing end, to the length of fixed outer measuring jaw.

The utility model is further arranged to：Inverted L-type insertion groove is provided with to perforation on collet, insertion groove includes one Road translot and one of vertical slot, shaft, gear are located in the translot of insertion groove, and fixing end stretches into vertical slot.

By using above-mentioned technical proposal, fixing end be located in the vertical slot of insertion groove and be meshed with the gear in translot to It connects, and gear is fixed in rotational support in the shaft in translot, so that collet is slid more stablely and is connected in fixing end.

The utility model is further arranged to：The extending formula vernier caliper of exterior measuring measuring jaw further includes being flexibly connected simultaneously with collet Fixing piece for limiting shaft rotation.

By using above-mentioned technical proposal, after collet position adjusts, fixture is limited and is rotated by shaft, makes external pelivimetry The extending formula vernier caliper of pawl, which uses, more to be stablized.

The utility model is further arranged to：Fixing piece is the flange for being wholely set and be polygon with shaft, flange position In shaft, recess is provided with and can allow from the axis body for stretching out exterior surface and on collet, the collet surface opposite with flange The limiting groove that flange is embedded.

By using above-mentioned technical proposal, fixing piece is the flange for being wholely set and be polygon with shaft, flange insertion When in the limiting groove on exterior surface, the rotation of shaft will be locked, and collet is made to be fixed on current location.It needs to continue When adjusting outer measuring jaw length, pull shaft to extract flange out of limiting groove.

The utility model is further arranged to：The axle cap that outer diameter is more than shaft is connected on the axis body outside collet.

By using above-mentioned technical proposal, axle cap provides a point of application, facilitates and extracts shaft upper flange.

The utility model is further arranged to：Axle cap is the plate-like structure of side out-of-flatness.

By using above-mentioned technical proposal, the side of axle cap and thumb contact is out-of-flatness, will increase thumb and axle cap Between frictional force, more convenient thumb pinches axle cap and exerts a force.

The utility model is further arranged to：The extending formula vernier caliper of exterior measuring measuring jaw further includes being located above flange to be used in combination In tightly suppressing flange, with prevent flange loosened out of limiting groove be detached from press component.

By using above-mentioned technical proposal, on condition that an external force is not applied, pressing component will be such that flange is steadily fitted into In limiting groove, the fixed effect to collet is further enhanced.

The utility model is further arranged to：It includes being fixed on collet and hollow sleeve that shaft passes through to press component Cylinder, be fixed in cannulated sleeve its close to the baffle ring of the opening of axle cap side, in cannulated sleeve and be set in shaft and Its both ends is respectively held against baffle ring and collet and then the spring in compressive state.

By using above-mentioned technical proposal, the spring being set in shaft will resist flange and baffle ring and in compression shape State, and baffle ring is integrally disposed upon on the cannulated sleeve affixed with collet, to make spring form pushing effect to flange, is not applied In the case of external force, spring will be such that flange is steadily entrenched in limiting groove, further enhance the fixed effect to collet.

The utility model is further arranged to：The extending formula vernier caliper of exterior measuring measuring jaw further includes being fixed in fixed main scale Tail portion is simultaneously abutted with depth rod with the direction deviation for preventing depth rod to be directed away from fixed main scale.

By using above-mentioned technical proposal, depthometer will not be deflected when fathoming, and ensure that the accurate of measured value.

In conclusion the utility model has the advantages that：

When 1, measuring the larger object of outer diameter, by adjusting position of the collet in fixing end, the length of outer measuring jaw is made to add Length is to adapt to the outer diameter for being measured body；

2, it is intermeshed and is abutted with the fixing end being plugged on collet in the gear on collet by rotational support, make collet It is connect relatively stablely into line slip with fixing end, enhances the stability that the extending formula vernier caliper of exterior measuring measuring jaw uses；

3, it is flexibly connected with collet and the fixing piece that further collet position can be fixed and increasing by being provided with The strong stability being flexibly connected between fixing piece and collet presses component, makes when measuring, collet can more steadily be consolidated It is scheduled in fixing end, further enhances the stability that the extending formula vernier caliper of exterior measuring measuring jaw uses.

Description of the drawings

Fig. 1 is the axonometric drawing of the extending formula vernier caliper of exterior measuring measuring jaw, main to indicate the extending formula vernier calliper of exterior measuring measuring jaw The structure and part position relations of ruler；

Fig. 2 is the rearview of the extending formula vernier caliper of exterior measuring measuring jaw, the main knot for indicating depth rod when outer measuring jaw closes up Structure and position relationship with other component；

Fig. 3 is the partial view when collet of the extending formula vernier caliper of exterior measuring measuring jaw stretches out, it is main indicate collet with it is solid The structure and position relationship of fixed end；

Fig. 4 is the sectional view of the line A-A along Fig. 3, mainly indicates that collet, limiting device, the position of fixing end and assembly are closed System；

Fig. 5 is the enlarged drawing in the portions B in Fig. 3, the main structure and position relationship for indicating fixing piece；

Fig. 6 is the schematic diagram being provided on the extending formula vernier caliper of exterior measuring measuring jaw when pressing component, main to indicate to press The modular construction and its assembly relation of component.

In figure, 1, fixed main scale；2, vernier slide rule；21, top wheel；3, interior measuring jaw；4, outer measuring jaw；41, fixing end；42, it covers Pawl；421, insertion groove；422, limiting groove；5, nestled bolt；6, depth rod；7, limiting bracket；8, limiting device；81, shaft； 82, gear；83, fixing piece；84, axle cap；85, press component；851, cannulated sleeve；852, baffle ring；853, spring.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this It is all protected by Patent Law in the right of invention.

Embodiment 1：A kind of extending formula vernier caliper of exterior measuring measuring jaw, referring to Fig.1, it includes fixed main scale 1, fixed main scale 1 is with range scale line and is the flat structure of strip.Fixed main scale 1 is head close to one end of zero graduation line, another End is then tail portion.

Be fitted on fixed main scale 1 and be arranged with one section of vernier slide rule 2, fixed main scale 1 pass through vernier slide rule 2 and with its company of sliding It connects, vernier slide rule 2 is head close to one end of zero graduation line, and the other end is then tail portion.

The extending formula vernier caliper of exterior measuring measuring jaw further includes measuring jaw 3 and use in a couple for measure geometry shape hole internal diameter In the external measuring jaw 4 for measuring outer diameter and end face spacing.Measuring jaw 3 is integrally formed at fixed main scale 1 and trip respectively in one pair The side on 2 its head of slide rule is marked, an external measuring jaw 4 is integrally formed at the another of 2 its head of fixed main scale 1 and vernier slide rule respectively Side.

Outer measuring jaw 4 is claw type slab construction, and the opposite side of two outer measuring jaws is clamping part 4.In measured hole internal diameter, it is Outer measuring jaw 4 is set easily to stretch into hole, bottom is set as more sharp shape, and to ensure accurate, the folder of bottom measured It is line style to hold portion.Interior measuring jaw 3 is then dedicated for the internal diameter in measure geometry shape hole, therefore 3 global design of interior measuring jaw is at more sharp For shape to facilitate it to be inserted into geometric form hole, the clamping part of interior measuring jaw 3 is linear structure and the clamping part of its direction and outer measuring jaw 4 Direction it is opposite.

When vernier slide rule 2 slides to the dead-center position of fixed main scale 1, the clamping part of two outer measuring jaws 4 will be close to mutually, and two The clamping part of a interior measuring jaw 3 staggeredly adjacent will paste.

Vernier slide rule 2 is stirred for convenience of thumb, top wheel 21 has been wholely set on vernier slide rule 2, it is contemplated that human hand is held When fixed main scale 1 measures, thumb is typically toward 4 side of outer measuring jaw, and Gu Ding wheels 21 are also disposed on vernier slide rule 2 with outer Be separated with a distance on the position of 4 side of measuring jaw and between outer measuring jaw 4, and in order to increase the friction between thumb and top wheel 21 with It is more convenient its use, top wheel 21 is designed to the structure with out-of-flatness arcwall face.

With reference to Fig. 2, after measuring the data of needs, vernier slide rule 2 is touched outside people's will in order to prevent, reading is caused to miss Difference offers tapped through hole in the side of vernier slide rule 2, nestled bolt 5 is correspondingly provided in tapped through hole, has measured data Afterwards, vernier slide rule 2 can be fixed on current location by twisting nestled bolt 5, is avoided to a certain extent because unexpected touch is made At error in reading.

The extending formula vernier caliper of exterior measuring measuring jaw further includes the depth rod 6 for fathoming, and depth rod 6 is flat for strip Harden structure, 6 one end of depth rod is affixed with vernier slide rule 2 and parallel with fixed main scale 1, relative to amount on fixed main scale 1 Recess is provided with sliding slot in the one side of journey graduation mark, and depth rod 6 is embedded in sliding slot and can opposite sliding.

When the zero graduation line of vernier slide rule 2, fixed main scale 1 is opposite, the other end of depth rod 6 will be with fixed main scale 1 Tail end face it is concordant.Need to measure certain end face relative to it is another with reference to end face apart from when, fixed main scale 1 need to only be put vertically It is placed on the plane of reference, then vernier slide rule 2 is skidded off from zero graduation line position and drives depth rod 6 from the tail portion of fixed main scale 1 It stretches out, until depth rod 6 touches measured surface.And it is fixed during the sliding of depth rod 6 towards being detached from order to prevent Beat occurs for the direction of main scale 1 to influence measurement accuracy, and the limit of slab construction is connected in the tail portion of fixed 1 sliding slot of main scale Holder 7.

With reference to Fig. 3, it is contemplated that when measuring the larger arc surface of outer diameter, outer measuring jaw 4 not enough leads to not measure it because of length Outer diameter size, thus outer measuring jaw 4 is divided for be wholely set with fixed main scale 1 and be strip fixing end 41 and with fixing end 41 Grafting and the opposite collet 42 that it is slided of energy.In conjunction with shown in Fig. 4, collet 42 has inverted L-type insertion groove 421, insertion groove 421 include one of translot and one of vertical slot, and fixing end 41 will be inserted into vertical slot.

With reference to Fig. 3, it is provided with limitation collet 42 between fixing end 41 and collet 42 and slides, with fixed outer measuring jaw 4 The limiting device 8 of length.In conjunction with shown in Fig. 4, limiting device 8 includes the shaft 81 being rotatably supported in 421 translot of insertion groove, is turned Gear 82 is connected on axis 81, gear 82 is abutted with fixing end 41, and the face that abuts against of fixing end 41 and gear 82 is and gear The 82 intermeshing flank of tooth.On condition that an external force is not applied, gear 82 is engaged with fixing end 41, and the position of collet 42 is made to keep It is constant.

With reference to Fig. 5, after collet 42 skids off, to keep outer measuring jaw adjustable in length formula vernier caliper using effect more steady It is fixed, the fixing piece 83 for limiting the rotation of shaft 81 is connected on collet 42.One end of shaft 81 will penetrate insertion groove 421 Inner wall is simultaneously stretched out from the surface of collet 42, and fixing piece 83 is installed in shaft 81 and is located at outside collet 42 and close to the axis body of collet 42 On, fixing piece 83 is the annular flange being wholely set with shaft 81 and is polygonized structure, the end face opposite with flange of collet 42 Upper recess is provided with the limiting groove 422 chimeric with flange.The thickness of gear 42 is less than the width of translot, and shaft 81 can be in collet Axial sliding motion is done on 42.When by the flange insertion limiting groove 422 in shaft 81, shaft 81 can be limited and rotated, Achieve the purpose that further fix 42 position of collet.When needing to adjust 42 length of collet, by pulling shaft 81 by flange It is extracted in from limiting groove 422.

It is pulled out out of limiting groove 422 for convenience of by flange, conduct is connected on the axis body that shaft 81 stretches out collet 42 The axle cap 84 of the point of application, axle cap 84 are located remotely from the side of collet 42.And in order to increase the friction system between finger and axle cap 84 Number is more convenient to pull out shaft 81, axle cap 84 is set as to the structure of side out-of-flatness.

With reference to Fig. 6, to prevent when measuring, fixing piece 83 is detached from out of limiting groove 422, may will bring fiber crops to measurement It is tired, it is provided between fixing piece 83 and axle cap 84 and presses component 85.

It includes having flange face and the cannulated sleeve 851 affixed with collet 42 to press component 85, is offered on flange face more A threaded hole, collet 42 offer corresponding tapped blind hole, are provided with the matched fastener of threaded hole for will be hollow Sleeve 851 is fixed on collet 42.And opening of the cannulated sleeve 851 close to 84 one end of axle cap is installed with baffle ring 852, shaft 81 It passes through and is inserted into cannulated sleeve 851 from baffle ring 852.Spring 853 is arranged in shaft 81, spring 853 is located at cannulated sleeve In 851 and its both ends are respectively held against baffle ring 852 with fixing piece 83 and in compressive state, to which fixing piece 83 is pressed on limit In groove 422, need adjust collet 42 position when, hold axle cap 84 and pull out shaft 81, make spring 853 further by Compression, then slide collet 42.

Claims

1. a kind of extending formula vernier caliper of exterior measuring measuring jaw, including fixed main scale（1）, be set in fixed main scale（1）On vernier Slide rule（2）, be movably connected on vernier slide rule（2）It goes up and is used to fix vernier slide rule（2）The nestled bolt of position（5）, respectively one Body is set to fixed main scale（1）And vernier slide rule（2）Measuring jaw in the side on its head and a mutually symmetrical with couple（3）, respectively It is integrally formed at fixed main scale（1）And vernier slide rule（2）Its head other side and mutually symmetrical with one external measuring jaw（4）And Vernier slide rule（2）Depth rod affixed and for fathoming（6）, it is characterised in that：Outer measuring jaw（4）Including with fixed main scale （1）The fixing end of affixed long strip-board shape（41）, be set in fixing end（41）Collet that is upper and can sliding along its length （42）.

2. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 1, it is characterised in that：The extending formula of exterior measuring measuring jaw Vernier caliper further includes for limiting collet（42）The limiting device slid up and down（8）, limiting device（8）Including rotational support in Collet（42）On shaft（81）, be fixed in shaft（81）On gear（82）, fixing end（41）Have and gear（82）Mutually nibble The flank of tooth of conjunction, gear（82）With fixing end（41）The flank of tooth abut against.

3. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 2, it is characterised in that：Collet（42）Upper perforation ground It is provided with inverted L-type insertion groove（421）, insertion groove（421）Including one of translot and one of vertical slot, shaft（81）, gear （82）Positioned at insertion groove（421）Translot in, fixing end（41）It stretches into vertical slot.

4. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 3, it is characterised in that：The extending formula of exterior measuring measuring jaw Vernier caliper further includes and collet（42）It is flexibly connected and is used to limit shaft（81）The fixing piece of rotation（83）.

5. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 4, it is characterised in that：Fixing piece（83）For with turn Axis（81）It is wholely set and is the flange of polygon, shaft（81）One end is from collet（42）Outer surface be pierced by, flange be located at turn Axis（81）Stretch out collet（42）Outer surface and close collet（42）Axis body on, collet（42）It is recessed on the surface opposite with flange It is provided with the limiting groove that flange can be allowed to be embedded（422）, shaft（81）Removably it is rotatably supported in collet（42）On.

6. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 5, it is characterised in that：Positioned at collet（42）Outer It is connected with outer diameter on axis body and is more than shaft（81）Axle cap（84）.

7. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 6, it is characterised in that：Axle cap（84）Not for side Smooth plate-like structure.

8. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 7, it is characterised in that：The extending formula of exterior measuring measuring jaw Vernier caliper further includes for tightly suppressing flange to prevent flange from limiting groove（422）What interior loosening was detached from presses component （10）.

9. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 8, it is characterised in that：Press component（10）Including It is fixed in collet（42）Upper and shaft（81）The cannulated sleeve passed through（101）, be fixed in cannulated sleeve（101）It is by paraxial Cap（84）The baffle ring of the opening of side（102）, be located at cannulated sleeve（101）It is interior and be set in shaft（81）Upper and its both ends point Baffle ring is not resisted（102）And collet（42）And then the spring in compressive state（103）.

10. the extending formula vernier caliper of exterior measuring measuring jaw according to claim 9, it is characterised in that：Exterior measuring measuring jaw is extending Formula vernier caliper further includes being fixed in fixed main scale（1）Tail portion and and depth rod（6）It abuts to be used for preventing depth rod（6）Court To far from fixed main scale（1）Direction deviate.