CN106476489A

CN106476489A - Multifunctional ruler

Info

Publication number: CN106476489A
Application number: CN201510550217.4A
Authority: CN
Inventors: 刘刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-01
Filing date: 2015-09-01
Publication date: 2017-03-08

Abstract

The invention discloses a kind of multifunctional ruler, chi body including tile horizontally, the chi body includes left ruler and the right ruler being docking together, the upper edge of left ruler is provided with left scale, the upper edge of right ruler is provided with right scale, and left ruler upper right quarter is together with the hinge being extended before and after right ruler upper left quarter is by hinge.Can aid in completing the cutting of this bill of reconciliation, punching, seam dress work, hold comfort and convenient, force is reliable, simple to operate, and accountant can be aided in again at work to complete length measuring, draw the figure such as straight line and circle, straight line and arc cutting edge can also be carried out, the straight line of drafting and circular high precision, the accurate difference of the straight line of cutting and arc-shaped side position, and take small volume, easy to carry, it is particularly helpful to improve outgoing operating efficiency.

Description

Multifunctional ruler

Technical field

The present invention relates to a kind of multifunctional ruler.

Background technology：

Accounting be with currency as main measurement unit, with voucher as Main Basiss, by means of special technical method, Funds Movement to certain unit carries out accounting and the supervision of comprehensive, comprehensive, continuous, system, provides accounting information, participate in management, be intended to a kind of Economic Management Activities for increasing economic efficiency to the parties concerned.The function of accounting includes to carry out accounting and implements two basic functions of accounting control and prediction economic outlook, participatory economy decision-making, evaluates business performance etc. and expand function.Accounting function referred to mainly with monetary measurement form, by confirming, metering, record and is reported, in quantity continuously, the economic activity situation of system and complete each unit of reflection, is to strengthen economic management and offer accounting information of increasing economic efficiency.Accounting supervision function refers to that legitimacy to special body economic activity and related accounting, reasonability are examined.

In real work, accounting is exactly bill and account book in the physical item being in the most contact, need bill account book is carried out cutting, arrange, punch and stitching dress etc., therefore the special article of accounting of the accounting in real work is more, namely the instrument for carrying out associative operation to bill account book that uses is more.As it was previously stated, needing blade and ruler will be used when cutting bill or account book, will use awl and cord when seam dress bill and account book is needed.If these are operated in office, interior completes, relative simple, although the instrument for pick and place, operating these scrappy is more relatively cumbersome.But, if accounting goes to the tax bureau to render an account or go to bank, post office to deposit remittance to run into when the work such as needing bill, account book are carried out repairing, process, accounting typically cannot just be completed.Particularly when going to the tax bureau to render an account, as tax system is increasingly stricter to bill requirement, often occurs because the arrangement of bill account book is undesirable and require to stitch again the situation of dress.Because accounting will not typically carry so much scrappy instrument, often select back office to be made a trip after trimming account book bill again, or Advise By Wire colleague sends related tool, cause the outgoing work efficiency of accounting to substantially reduce.

Accounting further encounters the figures such as drafting straight line, circle, circular arc at work, or carries out cutting along straight line or circular arc.Drafting straight line generally uses ruler auxiliary and completes, and drafting circular arc or circle are then typically completed by compasses auxiliary.Traditional compasses are all the two rule arms hinged using upper end the structure for distinguishing fixing plug pin and paintbrush in rule arm lower end, this compasses simple structure, only two rule arms need to be separated during use, again with the good contact pin of ruler amount and paintbrush tip spacing, then rotation is turned around i.e. and can draw out a circle on the scraps of paper away from for radius around here, operates cumbersome.But this compasses are when using, as two rule arms are all obliquely installed, therefore contact pin and paintbrush are also be obliquely installed, so compasses are when downward operating physical force is subject to, contact pin can be inserted below the scraps of paper obliquely, there is individual offset error as the rotation of compasses can not only cause circle centre position to have a broken hole rotated out of because contact pin is inclined to also result in the home position on the scraps of paper with contact pin end namely actual home position, the accounting circular arc that draws out or the bill for cutting out or account book can be thus be inconsistent with requirement, can also make bill or account book irregular unsightly.

Content of the invention：

The technical problem to be solved in the present invention, it is aiming at above-mentioned deficiency, there is provided a kind of rational in infrastructure, can aid in completing the cutting of this bill of reconciliation, punching, seam dress work, hold comfort and convenient, force is reliable, simple to operate, accountant can be aided in again at work to complete length measuring, draw the figure such as straight line and circle, moreover it is possible to carry out straight line and arc cutting edge, the straight line of drafting and circular high precision, the accurate difference of the straight line of cutting and arc-shaped side position, and small volume is taken, and easy to carry, it is particularly helpful to improve the multifunctional ruler of outgoing operating efficiency.

For solving the above problems, this multifunctional ruler includes the chi body of tile horizontally, and which is structurally characterized in that：The chi body includes left ruler and the right ruler being docking together，The upper edge of left ruler is provided with left scale，The upper edge of right ruler is provided with right scale，Left ruler upper right quarter is together with the hinge being extended before and after right ruler upper left quarter is by hinge，The right side of left ruler is provided with right magnetic hole，The lateral surface right magnetic patch concordant with left ruler right side is installed with right magnetic hole，The left side of right ruler is provided with left magnetic hole，The lateral surface left magnetic patch concordant with right ruler left side is installed with left magnetic hole，Left ruler and right ruler around hinge when swinging into straightened condition right magnetic patch and left magnetic patch fix and be attached together and left ruler and right ruler are fixed together，When left ruler and right ruler around hinge swing into parastate, left ruler and the alignment of right ruler two ends and adjacent surface become placed against，Centre bore of the cross section for quadrangle is provided with the middle part of left ruler or right ruler bottom surface，Center iron hoop is installed with center bore inner wall，Left ruler and right ruler are away from being installed with end iron plate on the swinging end end face of hinge，It is end hole circular or that side is oval that every side end iron plate and connected left ruler and right ruler swinging end end face are provided with three cross sections，Also include that five insert the cylinder for coordinating with end hole，Cylinder outer end is coaxially installed with the newel that can only insert cooperation with centre bore，Newel is vertical with the connecting portion of cylinder to be installed with square magnet plate，Magnet plate edge both sides are provided with the slideway be arrangeding in parallel with magnet plate edge，The first two cylinder the inner is installed with epiconus，Latter two cylinder the inner is installed with blade，Also include paintbrush，Paintbrush includes last cylinder and the magnet plate being attached thereto and newel，Left ruler and right ruler bottom surface are correspondingly provided with the slide rail extended along chi body length direction，Magnet plate puts into the external wall of slide rail rear pillar by slipway clamp and newel side wall is all with chi body bottom surface snug fit and magnet plate can only be slided along slide rail length direction，Also include cylinder、Newel and magnet plate are positioned at the locking device on chi body，Also include a sewing needle，Sewing thread is wound with sewing needle，Also include magnet plate and the newel being fixed together，Needlework chamber corresponding with end hole is provided with the middle part of magnet plate and newel，The fixing foam block loaded with sewing needle inserting cooperation in needlework chamber，The paintbrush includes the post being made up of cylinder，A post chamber is provided with post，Column top is coaxially installed with conus portion，Conical cavity is coaxially provided with conus portion，Conus portion top is coaxially provided with the cylindrical core cavity connected with conical cavity，Post lower end is coaxially installed with external screw thread ring，Post hypomere is installed with the magnet ring being made up of magnet plate，The shape and size of magnet ring are identical with magnet plate，Magnet ring edge both sides also are provided with the chute that can only be slidably matched with slide rail，Also include the cap body being made up of newel，Cap body includes the tail cap coordinated with external screw thread ring hypomere spiral shell，The core pipe that coaxially fixed oriented core cavity extends on tail cap inner bottom surface，Core pipe inner chamber hypomere is loaded with spring，Core pipe epimere is fitted with pen core，Pen core epimere is coordinated with core cavity inserting，Also include to be arranged in a post chamber positioner pen core and a post being fixed together under a tail cap drives，Between post and a tail cap, it is provided with locking device，The positioner includes to be inserted in a post chamber and be sleeved on the positioning pipe outside core pipe，Positioning pipe lower end and a tail cap inner bottom surface compression fit，Positioning pipe upper end is fixed to be equipped with and is upwardly extended and gradually to the location-plate of positioning tube axis line bending，Gap is provided between adjacent positioned plate，Each location-plate epimere madial wall surrounds into the positioning chamber with the isometrical setting of pen core，Positioning chamber cavity wall and pen core outer wall compression fit，Each location-plate lateral wall surrounds into cone corresponding with conical cavity and corresponding with conical cavity cavity wall is slidably matched，Conical cavity cavity wall is provided with, with the convergence part of a post chamber cavity wall, the tapered inner ring that rounding off coordinates，Positioning pipe outer wall and location-plate lateral wall convergence part are provided with the tapered outer shroud coordinated with tapered inner ring.

This multifunctional ruler be by integral type can doubling plug-in mounting structure realizing aiding in the cutting for completing this bill of reconciliation, punching, seam dress work, hold comfort and convenient, force is reliable, simple to operate, accountant can be aided in again at work to complete length measuring, draw the figure such as straight line and circle, straight line and arc cutting edge can also be carried out, the straight line of drafting and circular high precision, the accurate difference of the straight line of cutting and arc-shaped side position, and take small volume, easy to carry, it is particularly helpful to improve outgoing operating efficiency.

Integral type can doubling plug-in mounting structure mainly include hinged left ruler and right ruler, and various counterparts coordinated with left ruler and right ruler inserting.In this patent, left ruler and right ruler constitute the chi body of this multifunctional ruler, are the agent structures of this multifunctional ruler.No matter in shape, still left ruler and right ruler are all dimensionally identical.Together with left ruler passes through hinge with right ruler, therefore both can be mutually swung with around hinge.For convenience of describing, one end of left ruler and right ruler connects hinge is referred to as hinged end, remaining one end is referred to as swinging end, its place section is referred to as hinge segment and wobble segment；And left ruler and right ruler are pressed left and right directions tile horizontally on the table respectively, and the fore-and-aft direction up and down for defining left ruler and right ruler up and down with this position.So, the left end of chi body is exactly the left end of left ruler, and the right-hand member of chi body is exactly the right-hand member of right ruler, and the left end of the right-hand member of left ruler and right ruler is by together with hinge.In this patent, the hinge center line of hinge is extended along the longitudinal direction, and such right ruler just can be swung upwards on left ruler around hinge.For convenience of describing, state right ruler swung on left ruler is referred to as doubled state or folded state.In doubled state, right ruler is to be fully inverted setting, and now left ruler top surface and right ruler top surface be arranged in parallel and together with being adjacent to.In doubled state, chi body shortens half in length, and therefore storage takes volume and greatly reduces, and is particularly suitable for outgoing carrying and uses.In this patent, left ruler top surface top is provided with the left scale arranged along left ruler length direction, and right ruler top surface top also is provided with the right scale arranged along right ruler length direction, can provide the foundation of gage length for accountant.

When right ruler around hinge is swung on the right side of left ruler and when in the same plane with the corresponding bottom surface of left ruler, together with the right side of left ruler is just adjacent to the left side of right ruler, now left ruler and right ruler just constitute a complete ruler, and left scale and right scale are also connected into a continuous graduation mark.For convenience of describing, the state that left ruler and right ruler bottom surface are generally aligned in the same plane is referred to as extended configuration or ruler state.In extended configuration, the range of chi body is exactly the sum of left scale and right scale, because left scale and right scale are perfect linkings.And in doubled state, the half of range when the range of chi body is extended configuration, that is to say the range of left scale or the range of right scale.Accountant can select corresponding range according to actual needs, very convenient.

In this patent, the right side of left ruler is provided with right magnetic hole, is installed with right magnetic patch in right magnetic hole, and the outer face of right magnetic patch is concordant with the right side of left ruler to be arranged, the linking of left ruler and right ruler when therefore the setting of right magnetic patch does not interfere with extended configuration.The left side of right ruler is provided with left magnetic hole, is installed with left magnetic patch in left magnetic hole, and the outer face of left magnetic patch is also concordant with the left side of right ruler to be arranged, so, the perfect linking of left ruler and right ruler when the setting of left magnetic patch does not interfere with extended configuration yet.In extended configuration, the right side of left ruler and the left side of right ruler fit together, and also correspondence fits together the left magnetic patch in right magnetic patch and right ruler in such left ruler.In this patent, the outer end magnetic pole of left magnetic patch and right magnetic patch is oppositely arranged, and therefore, in extended configuration, left magnetic patch and right magnetic patch correspondence are attached together.So, mutually the left magnetic patch of absorption and right magnetic patch make left ruler and right ruler tightly be locked together by magnetic attraction, and make left ruler and right ruler be maintained at ruler state, when using accordingly, as ruler, are as good as with ruler.

When needing to switch to doubled state from ruler state, two hands are only needed to hold left ruler and right ruler respectively, and the hinge segment of left ruler and right ruler top surface is withstood on thumb, and the wobble segment of left ruler and right ruler is pushed with remaining four finger, one can be constituted between the wobble segment and hinge segment of left ruler and right ruler with thumb as the strong point with remaining lever construction of four fingers as the point of application, so left magnetic patch and right magnetic patch can be pried away from by contact by the lever construction with less hand oscillatory forces, namely locking is released, namely release locking state.When continue to four refer to force make the top surface of right ruler be adjacent to the top surface of left ruler together with when, that is, reach doubled state.Because doubled state does not have external force to be allowed to doubled state is kept, therefore doubled state is converted into ruler state simply many.Left ruler and right ruler around hinge need to be only promoted to swing to ruler state, left ruler can become ruler state by automatic swing with right ruler under left magnetic patch with the suction of right magnetic patch, operate very simple.

In this patent, the swinging end in left ruler and right ruler is respectively arranged with three end hole, altogether six end hole.End hole cross section is typically provided to circle or ellipse, and the Main Function of end hole is to contain or the aforesaid counterpart of fixation.In this patent, counterpart includes to insert the cylinder for coordinating with end hole, and the quantity of cylinder is five, cylinder cross section and end hole shape, equivalently-sized.For convenience of describing, cylinder is vertically arranged.Wherein, the first two cylinder upper end is installed with tip epiconus upward, and epiconus is coaxially disposed with cylinder and epiconus lower end is identical with cylinder upper end shape and size.Cylinder lower end is vertically installed with a magnet plate, and magnet plate is square plate, and cylinder axial line is vertically set on magnet plate center.Cylinder lower end is installed with newel, and newel is extended to below magnet plate, and newel is located at the upper and lower both sides of magnet plate respectively with cylinder.Newel cross section is overlapped with the axial line of cylinder setting for square, the center line of newel.In this patent, a upwardly extending centre bore is provided with the middle part of left ruler or right ruler bottom surface, the cross section of centre bore is the square coordinated with newel.The outer section of the hole wall of centre bore is installed with a center iron hoop, and center iron hoop inner wall size is identical with the peripheral dimension of newel, and therefore newel smoothly can be inserted in the iron hoop of center, namely is inserted into center in the hole.Now, the upper surface of magnet plate is adjacent to and is attached together with the outer end of center iron hoop, thus serves and cylinder and epiconus is locked in the effect of chi body bottom in doubled state.For convenience of describing, this state is referred to as bore state or punching state.In the state of punching, accountant can hold the chi body of doubling and epiconus alignment bill or account book are drilled, and operate very simple.Can not be rotatably assorted as newel and centre bore can only insert cooperation, therefore in drilling, epiconus, cylinder and chi body are the integrative-structure being fixed together, just as awl, it is ensured that the convenience of drilling.In drilling, the chi contact level that hand holds is larger, therefore holds comfortable, and force is handy, it is ensured that the q＆r of drilling.

In this patent, left ruler and right ruler bottom surface are provided with the slide rail extended along chi body, magnet plate edge both sides are provided with the slideway being slidably matched with slide rail clamp, therefore, when magnet plate edge is slipped into slide rail along slideway, magnet plate can only slide along slide rail and can not move relative to slide rail in other any directions.Slide rail is smoothly slipped into for convenience of magnet plate edge, slide rail both ends are arranged to the less horn mouth of the larger the inner size of outer end size, there is the effect that guiding magnet plate is slipped into, such magnet plate not only can be slipped into from slide rail two ends but also be slipped into more smooth and quick.In this patent, cylinder periphery wall is equal along spacing with adjacent magnets edges of boards, and main body periphery wall and chi body bottom surface snug fit when magnet plate edge slips into slide rail, with the effect for tentatively locking cylinder with chi body.In this patent, newel periphery wall is equal with the four of magnet plate edge spacing, and when magnet plate edge slips into slide rail, newel periphery wall also with chi body bottom surface snug fit, with by the effect of newel and the tentatively locking of chi body.For convenience of describing, magnet plate is slipped into slide rail and cylinder and newel are referred to as preliminary locking state or Primary Location state while friction tight state is shown consideration for chi, illustrate when being vertically arranged with cylinder below.In preliminary locking state, magnet plate can only be slided along slide rail under external force, and therefore cylinder and newel can not can not be moved away from chi body towards the movement of chi body, namely can not be movable with respect to chi body.For these reasons, cylinder and newel can not be moved up and down with respect to chi body.Again because cylinder and newel all show consideration for tight fit with chi, therefore cylinder and newel can not swing towards chi body or swing away from chi body direction.Because magnet plate is a horizontal-extending square plate and is installed in slide rail, therefore cylinder and newel can not be swung with respect to chi body.In sum, in preliminary locking state, cylinder and newel only be subject to overcome preliminary coupling mechanism force between cylinder and chi body or preliminary frictional force and overcome preliminary coupling mechanism force between newel and chi body or preliminary frictional force external force after, otherwise the preliminary locking state with chi body or Primary Location state could will be kept along slide rail relative movement.After cylinder is fixed, the epiconus on cylinder top exposes chi body edge with a scale, thus can determine particular location or coordinate of the epiconus on chi body by left scale and right scale.In this patent, locking device is additionally provided with, and the Main Function of locking device is that cylinder, newel and magnet plate are fixed on chi body.The purpose for arranging locking device is the fixing reliability for ensureing cylinder, newel and chi body, namely the precision that ensure that epiconus position or coordinate.For convenience of describing, this state is referred to as depth locking state or depth localization state.Depth localization state is suitable for the higher occasion of positioning accuracy request and uses, and Primary Location state is suitable for the occasion not high to positioning accuracy request and uses, and is suitable for the various job requirements of accounting, and very hommization.

In this patent, the structure of two other cylinder is essentially identical with the structure of above-mentioned two cylinder, and lower end is all installed with identical magnet plate and newel, and difference is two cylinder upper ends namely inserts to be installed with blade on the inner during end hole.Therefore, when what a epiconus and a blade is fixed, the spacing of blade and epiconus is adjusted, circle or circular arc cutting can be carried out to account book or bill.When the newel of blade is inserted into centre bore, cutting or cutting that chi body completes to carry out account book or bill the arbitrary shapes such as straight line, broken line can be held.When fixing two epiconuses and spacing being adjusted, two parallel score line can be portrayed on account book or bill to aid in accounting to complete alignment operation.When fixing two blades and spacing being adjusted, bill or account book equidistantly can be cut or cutting, make bill and account book more neat and attractive in appearance.In this patent, blade is in isosceles triangle, and the waist edge such as two, blade is blade, and two blades of such blade can be cut to bill or account book.During concrete operations, back and forth thicker bill or account book can be cut repeatedly on motion track, be favorably improved cut quality and efficiency.The blade tip of blade and line of symmetry are located on cylinder axial line, so can ensure that the accuracy of measurement blade position, namely the precision that ensure that cutting or cutting.

In this patent, also include a paintbrush, paintbrush is arranged on last cylinder.Because last cylinder lower end（I.e. cylinder insertion end hole when outer end）Also it is installed with and aforementioned cylinder identical magnet plate and newel, therefore paintbrush can also be populated and be fixed on center in the hole, such accounting can operate shorter paintbrush by holding chi body, so as to complete various line work.Paintbrush can also be positioned on slide rail by magnet plate, coordinated, determine after spacing with the epiconus being positioned on chi body, can be completed picture circle, be drawn arc, and portray parallel score line and paintbrush line, aid in accounting to complete the related housekeeping of account book and bill.

This patent also includes a sewing needle, is wound with sewing thread on sewing needle, the hole that bill or account book are drilled can be tried to make a match by aforementioned by sewing needle and sewing thread, can thus complete the seam dress work to account book and bill, very convenient.This patent also includes magnet plate and the newel being fixed together, the needlework chamber being communicated with the middle part of magnet plate and newel, fixing filling foam block in needlework chamber.As such, it is possible to the sewing needle that will be wound with sewing thread is inserted on foam block, being fixedly connected for sewing needle, sewing thread, magnet plate and newel is also achieved that.When newel is held by the sewing needle being intertwined and sewing thread insertion end hole, magnet plate meeting automatic absorbing thus serves, on the end iron plate of end in the hole, the effect that closure end hole prevents sewing needle and sewing thread from dropping out.When seam dress is needed, need to only hold newel and sewing needle is extracted end hole, operate very simple.

Used as a kind of implementation, the locking device includes the iron plate bar for being installed in slide rail bottom.

In the fixed iron plate bar extended along slide rail in slide rail bottom, can adsorb when magnet plate slips into slide rail on iron plate bar, thus again many to magnet plate, main body and newel power being fixedly connected with chi body, greatly strengthen the reliable lock of depth locking state.

Used as improvement, chi body bottom is additionally provided with and is be arranged in parallel cross section identical pair slide rail with slide rail, is also included the plastic plate with magnet plate same shape and size, is provided with one with cylinder cross section same shape and the slide opening of size in the middle part of plastic plate.

As a kind of preferred embodiment, the locking device includes that coaxial rings are located at the lower outer shroud tooth of a tail cap periphery, lower outer shroud tooth is axially extending along a post, post hypomere periphery is coaxially equipped with the upper outer shroud tooth for axially aligning setting with lower outer shroud tooth, locking cap is set with tail cap, the lower inner ring tooth of axially extending setting is equipped with locking cap inwall, and lower inner ring tooth is slid axially to insert with lower outer shroud tooth, upper outer shroud tooth and coordinates.

Used as improvement, lower inner ring tooth inserting end is installed with the narrower the inner in outer end with the round and smooth lower wedge-shaped part for docking in lower inner ring tooth inserting end, and upper outer shroud tooth inserting end is installed with the narrower connection end of the free end upper wedge-shaped part that dock round and smooth with upper outer shroud tooth.

Used as improvement, lower inner ring tooth stage casing is equipped with the interior spacing ring for preventing lower outer shroud tooth from skidding off lower inner ring tooth.

As improvement, also include the circular tube shaped clear pen head cap coordinated with conus portion and a post epimere suit, interior snap ring is equipped with written cap mouth inner wall, the outer snap ring being equipped with post with interior snap ring snap fit, written cap outer wall is provided with the rule axially extending along written cap, written cap is provided with internal thread segment away from one section of internal chamber wall of a post and core cavity, threaded post is bolted with internal thread segment, threaded post two ends are installed with the diameter interior cylindrical section equal with internal thread segment external diameter and cylindrical shell of column respectively, and cylindrical shell of column periphery is provided with numb line.

In sum, present patent application can aid in completing the cutting of this bill of reconciliation, punching, seam dress work, hold comfort and convenient, and force is reliable, simple to operate, accountant can be aided in again at work to complete length measuring, draw the figure such as straight line and circle, moreover it is possible to carry out straight line and arc cutting edge, the straight line of drafting and circular high precision, the accurate difference of the straight line of cutting and arc-shaped side position, and small volume is taken, and easy to carry, it is particularly helpful to improve outgoing operating efficiency.

Description of the drawings：

Describe the present invention below in conjunction with the accompanying drawings.

The fit structure schematic diagram of chi body and two epiconuses when Fig. 1 is doubled state；

The fit structure schematic diagram of chi body, epiconus and paintbrush when Fig. 2 is extended configuration；

The fit structure schematic diagram of chi body, epiconus and blade when Fig. 3 is extended configuration；

Fig. 4 is the fit structure schematic diagram of sewing needle and foam block；

Fig. 5 is the fit structure schematic diagram of location-plate and positioning chamber；

Fig. 6 be that a tail cap tightens external screw thread ring but when locking cap does not lock outer shroud tooth paintbrush partly cut open structural representation；

Fig. 7 be a tail cap tighten external screw thread ring and meanwhile during locking cap locking upper outer shroud tooth paintbrush partly cut open structural representation；

Fig. 8 is the fit structure schematic diagram of conus portion, a post, positioning pipe, location-plate and pen core；

Fig. 9 is the fit structure schematic diagram of positioning pipe and location-plate；

Figure 10 is the fit structure schematic diagram of pen core, spring, a tail cap and locking cap.

Specific embodiment：

As illustrated, the multifunctional ruler includes the chi body 1 of tile horizontally, the chi body includes the left ruler 2 being docking together and right ruler 3.The upper edge of left ruler is provided with left scale 4, and the upper edge of right ruler is provided with right scale 5, and left ruler upper right quarter and right ruler upper left quarter are hinged by the hinge 6 being extended before and after hinge.The right side of left ruler is provided with right magnetic hole 7, is installed with the lateral surface right magnetic patch 29 concordant with left ruler right side in right magnetic hole.The left side of right ruler is provided with left magnetic hole 8, is installed with the lateral surface left magnetic patch 9 concordant with right ruler left side in left magnetic hole.Left ruler and right ruler around hinge when swinging into straightened condition right magnetic patch and left magnetic patch fix and be attached together and left ruler and right ruler are fixed together.

When left ruler and right ruler around hinge swing into parastate, left ruler and the alignment of right ruler two ends and adjacent surface become placed against.Centre bore 10 of the cross section for quadrangle is provided with the middle part of left ruler or right ruler bottom surface, is installed with center iron hoop 11 on center bore inner wall., away from end iron plate 12 is installed with the swinging end end face of hinge, it is end hole 13 circular or that side is oval that every side end iron plate and connected left ruler and right ruler swinging end end face are provided with three cross sections for left ruler and right ruler.Also include that five insert the cylinder 14 for coordinating with end hole, cylinder outer end is coaxially installed with the newel 16 that cooperation can only be inserted with centre bore.Newel is vertical with the connecting portion of cylinder to be installed with square magnet plate 17, and magnet plate edge both sides are provided with the slideway 18 be arrangeding in parallel with magnet plate edge.The first two cylinder the inner is installed with epiconus 15, and latter two cylinder the inner is installed with blade 25.

This patent also includes paintbrush 24, and paintbrush includes last cylinder and the magnet plate being attached thereto and newel.Left ruler and right ruler bottom surface are correspondingly provided with the slide rail 19 extended along chi body length direction.Magnet plate puts into the external wall of slide rail rear pillar by slipway clamp and newel side wall is all with chi body bottom surface snug fit and magnet plate can only be slided along slide rail length direction.This patent also includes for cylinder, newel and magnet plate to be positioned at the locking device on chi body.This patent also includes a sewing needle 30, is wound with sewing thread 26 on sewing needle.Also include magnet plate and the newel being fixed together, needlework chamber 27 corresponding with end hole in the middle part of magnet plate and newel, is provided with, the fixing foam block 28 loaded with sewing needle inserting cooperation in needlework chamber.

The agent structure of this multifunctional ruler includes hinged left ruler and right ruler, and the various counterparts coordinated with left ruler and right ruler inserting.In this patent, left ruler and right ruler constitute the chi body of this multifunctional ruler, are the agent structures of this multifunctional ruler.No matter in shape, still left ruler and right ruler are all dimensionally identical.Together with left ruler passes through hinge with right ruler, therefore both can be mutually swung with around hinge.For convenience of describing, one end of left ruler and right ruler connects hinge is referred to as hinged end, remaining one end is referred to as swinging end, its place section is referred to as hinge segment and wobble segment；And left ruler and right ruler are pressed left and right directions tile horizontally on the table respectively, and the fore-and-aft direction up and down for defining left ruler and right ruler up and down with this position.So, the left end of chi body is exactly the left end of left ruler, and the right-hand member of chi body is exactly the right-hand member of right ruler, and the left end of the right-hand member of left ruler and right ruler is by together with hinge.In this patent, the hinge center line of hinge is extended along the longitudinal direction, and such right ruler just can be swung upwards on left ruler around hinge.For convenience of describing, state right ruler swung on left ruler is referred to as doubled state or folded state.In doubled state, right ruler is to be fully inverted setting, and now left ruler top surface and right ruler top surface be arranged in parallel and together with being adjacent to.In doubled state, chi body shortens half in length, and therefore storage takes volume and greatly reduces, and is particularly suitable for outgoing carrying and uses.In this patent, left ruler top surface top is provided with the left scale arranged along left ruler length direction, and right ruler top surface top also is provided with the right scale arranged along right ruler length direction, can provide the foundation of gage length for accountant.

In the present embodiment, the locking device includes to be installed in the iron plate bar 20 of slide rail bottom.In the fixed iron plate bar extended along slide rail in slide rail bottom, can adsorb when magnet plate slips into slide rail on iron plate bar, thus again many to magnet plate, main body and newel power being fixedly connected with chi body, greatly strengthen the reliable lock of depth locking state.

Chi body bottom is additionally provided with and is be arranged in parallel cross section identical pair slide rail 21 with slide rail, is also included the plastic plate 22 with magnet plate same shape and size, is provided with the slide opening 23 of and cylinder cross section same shape and size in the middle part of plastic plate.As the cross section of secondary slide rail and slide rail is identical, and plastic plate is identical with the geomery of magnet plate, therefore plastic plate can also clamp enter in secondary slide rail and slide along secondary slide rail.When cylinder inserts the slide opening into plastic plate center, cylinder and plastic plate can only slide axially.Because slide rail and secondary slide rail be arranged in parallel, therefore when cylinder by magnet plate and plastic plate clamp enters slide rail and secondary slide rail respectively when, can move along chi body in external force promotion lower prop.Now, as cylinder two ends are subject to the positioning action of plastic plate and magnet plate respectively, make cylinder higher with the structural stability after the locking of chi body, substantially increase the precision of cylinder position or coordinate on chi body.

In the present embodiment，The paintbrush 24 includes the post 01 being made up of cylinder 14，A post chamber 05 is provided with post 01，01 top of post is coaxially installed with conus portion 02，Conical cavity 03 is coaxially provided with conus portion 02，02 top of conus portion is coaxially provided with the cylindrical core cavity 04 connected with conical cavity 03，01 lower end of post is coaxially installed with external screw thread ring 06，01 hypomere of post is installed with the magnet ring 007 being made up of magnet plate 17，The shape and size of magnet ring 007 are identical with magnet plate 17，007 edge both sides of magnet ring also are provided with the chute 008 that can only be slidably matched with slide rail 19，Also include the cap body being made up of newel 16，Cap body includes the tail cap 09 coordinated with 06 hypomere spiral shell of external screw thread ring，The core 010 that coaxially fixed oriented core cavity extends on tail cap inner bottom surface，Core pipe inner chamber hypomere is loaded with spring 011，Core pipe epimere is fitted with pen core 012，Pen core epimere is coordinated with core cavity inserting，Also include to be arranged in a post chamber positioner pen core and a post being fixed together under a tail cap drives，Between post and a tail cap, it is provided with locking device.

This paintbrush mainly includes to be arranged on the shell mechanism of outside and is arranged on and send cored structure in shell mechanism.Wherein, shell mechanism mainly includes a post, conus portion and a tail cap, and a post is located in the middle part of whole paintbrush, and conus portion is installed in a post upper end, and a tail cap is arranged on a post lower end.Post is the agent structure of this paintbrush, is provided with a post chamber, in order to contain pen core in a post.The internal hypomere of conus portion is provided with conical cavity, the connection corresponding with a post chamber of conical cavity lower end.The internal epimere of conus portion is provided with core cavity, and core cavity diameter is equal with pen core external diameter, when so can ensure that pen core is inserted into core cavity, will not rock with respect to a post, this ensures that there write or during setting-out pen core will not sideslip, namely ensure that write or setting-out precision.Core cavity lower end is connected with conical cavity upper end, and such core cavity, conical cavity have just connected the cavity of being easy to pen core pass through complete into a post chamber.Post lower end is installed with an external screw thread ring, and external screw thread ring is coaxially disposed with a post, is bolted with a tail cap on external screw thread ring.Due to external screw thread ring external diameter be less than a post external diameter, therefore a tail cap can only in outer threaded collar helical rotation and external screw thread ring can not be crossed, serve position-limiting action.Abovementioned cavity can be closed by turn tail cap or abovementioned cavity is opened, operate very simple.

In this patent, cored structure is sent mainly to include to be installed in a core pipe at tail cap inner bottom surface center, core pipe is coaxially disposed with a tail cap.Core pipe is pipe, and pen core is cylinder.Pen core is fitted with core pipe, and pen core is pencil-lead.Core pipe intracavity bottom is provided with spring, and pen core elasticity is pushed abovementioned cavity and releases core cavity by spring.Send cored structure also to include the positioner that pen core and a post are fixed together, so write or during setting-out pen core would not relative post move, it is ensured that write or setting-out reliability.After the pen core of core cavity is exposed using consuming, can be with unlocking locating device, pen core can be released core cavity by spring in core pipe automatically, then in locking positioning device, operate very simple.

Cored structure is sent also to include the positioner being arranged in a post chamber, positioner lower end is contacted with a tail cap, positioner upper end is coordinated with pen core.When pen with rotary tail cap, tail cap drives a positioner to position pen core, so that pen core and a post is fixed as one structure.Therefore, the clamping and positioning to pen core can just be controlled by screw-in pen tail cap, operates very simple.Positioner is to controlled or adjustable during the tightness of pen core positioning action.Tail cap precession is tighter, and positioner is stronger to the clamping force of pen core, position more reliable, otherwise more loose.Therefore, in actual use, can be according to the prolongation of use time, in order to avoid causing skidding because of the lubrication of graphite in pen core, the degree of tightening of a tail cap can be gradually stepped up, therefore be there is the effect for ensureing that this patent long time stability is used, namely extend service life.

In this patent, between post and a tail cap, it is provided with locking device, the Main Function of locking device is that a tail cap and a post are fixed together, a tail cap so would not be caused in use because of vibrating or touching to get loose, namely cause to pen core clamping failure, it is ensured that the reliability and stability of positioning.

In the present embodiment, the positioner includes the positioning pipe 013 for being inserted in a post chamber and being sleeved on outside core pipe, positioning pipe lower end and a tail cap inner bottom surface compression fit, positioning pipe upper end is fixed to be equipped with and is upwardly extended and gradually to the location-plate 014 of positioning tube axis line bending, gap 017 is provided between adjacent positioned plate, each location-plate epimere madial wall surrounds into the positioning chamber 018 with the isometrical setting of pen core, positioning chamber cavity wall and pen core outer wall compression fit, each location-plate lateral wall surrounds into cone corresponding with conical cavity and corresponding with conical cavity cavity wall is slidably matched, conical cavity cavity wall is provided with, with the convergence part of a post chamber cavity wall, the tapered inner ring 015 that rounding off coordinates, positioning pipe outer wall and location-plate lateral wall convergence part are provided with the tapered outer shroud 016 coordinated with tapered inner ring.In this positioner, positioning pipe and location-plate are two big building blocks, and wherein positioning pipe is basic components, are that location-plate provides installation carrier and detent force transmission channels.Location-plate is the execution unit for implementing positioning function, and its Main Function is that the thrust of positioning pipe is converted into the chucking power to pen core or detent force.The quantity of location-plate is several, presses circular row in positioning pipe upper end, and location-plate epimere is gradually extended to the circular track axial line of arrangement with respect to hypomere.With gap between adjacent positioned plate, the Main Function in gap is to provide deformation space for location-plate stress deformation.In this patent, the madial wall of location-plate epimere surrounds into a positioning chamber, and positioning chamber is cylindrical cavity.In nature, namely when location-plate does not receive external force, positioning chamber is the cylindrical cavity with core cavity same shape and size, therefore passes through just pen core.Location-plate lateral wall surrounds into the thick circular cone ring in the thin lower end in upper end, and the cavity wall of conical cavity is also the thick circular cone ring in the thin lower end in corresponding upper end, therefore when location-plate is subject to positioning pipe extruding force upwards or thrust, location-plate lateral wall epimere gradually can be moved to conical cavity axial line upwards along the cavity wall of conical cavity, a transverse shear stress power is thus applied with to the pen core in positioning chamber, namely serves the positioning action to pen core.Positioning pipe lower end and a tail cap inner bottom surface extrusion fit, therefore the thrust of positioning pipe is from a tail cap.That is, twist when a tail cap must be tighter, a tail cap is bigger to the transverse shear stress power of pen core by positioning pipe and location-plate, and positioning is tighter, otherwise more loose.When needing to release positioning, only need to unscrew a tail cap, operate very simple.

In this patent, conical cavity cavity wall is provided with, with the convergence part of a post chamber cavity wall, the tapered inner ring that rounding off coordinates, and positions pipe outer wall and location-plate lateral wall convergence part is provided with the tapered outer shroud coordinated with tapered inner ring, and tapered inner ring and tapered outer shroud are slidably matched.So arrange mainly when pen core is positioned, make location-plate slowly varying to the detent force of pen core, in case too fast, excessive power pinch off pen core.

In this patent, the locking device includes that coaxial rings are located at the lower outer shroud tooth 07 of a tail cap periphery, lower outer shroud tooth is axially extending along a post, post hypomere periphery is coaxially equipped with the upper outer shroud tooth 08 for axially aligning setting with lower outer shroud tooth, locking cap 019 is set with tail cap, the lower inner ring tooth 020 of axially extending setting is equipped with locking cap inwall, and lower inner ring tooth is slid axially to insert with lower outer shroud tooth, upper outer shroud tooth and coordinates.This locking device mainly includes four part-structures, that is, descend outer shroud tooth, upper outer shroud tooth, locking cap and the lower inner ring tooth being arranged in locking cap.Wherein, the shape and structure of lower outer shroud tooth and upper outer shroud tooth and equivalently-sized, and the shape and size of lower inner ring tooth are reversely equipped with lower outer shroud tooth.Therefore, lower inner ring tooth can slide to insert with lower outer shroud tooth and upper outer shroud tooth and coordinate.After a tail cap is tightened to a certain extent and makes pen core and the locking of post, holding on locking cap makes lower inner ring tooth and lower outer shroud tooth coaxially misplace cooperation, that is to say the teeth groove of the lower outer shroud between cog of lower inner ring tooth alignment, thus smoothly lower inner ring tooth can be slided and insert in lower outer shroud tooth, even if also the smooth set of locking cap is attached in a tail cap.Then outer shroud tooth promotes locking cap upwards in the same way, in so that the lower inner ring tooth slip of locking cap is inserted into upper outer shroud tooth, is so achieved that the suit of locking cap and upper outer shroud tooth.For convenience of describing, this state is referred to as positioning and locking state, the feature of positioning and locking state is exactly that upper outer shroud tooth and lower outer shroud tooth are fastened by locking cap by lower inner ring tooth.As upper outer shroud tooth is integrally fixed on a post, and upper outer shroud tooth, lower outer shroud tooth and lower inner ring tooth are all are extended coaxial with a post, therefore, under positioning and locking state, the tail cap cap that is just locked for setting outward outer shroud tooth is positioned at a post lower end, would not rotate relative to a post when such tail cap is vibrated or touches, also the effect that be held in position device to pen core coupling mechanism force fix just is served, fundamentally prevent when pen core stress is excessive, to slip into the situation of core cavity, it is ensured that the use reliability of this paintbrush.

Lower inner ring tooth inserting end is installed with the narrower the inner in outer end with the round and smooth lower wedge-shaped part 021 for docking in lower inner ring tooth inserting end, and upper outer shroud tooth inserting end is installed with the narrower connection end of the free end upper wedge-shaped part 022 that dock round and smooth with upper outer shroud tooth.For convenience of narration, the two ends of lower inner ring tooth are referred to as the inner and outer end, the one end for coordinating referred to as inserting end is inserted by lower internal gear outer end namely with upper outer shroud tooth, by upper outer shroud tooth near one end of a tail cap, namely inserts the one end for coordinating referred to as inserting end with lower inner ring tooth.After the fixed lower wedge-shaped part in lower inner ring tooth inserting end, as lower wedge-shaped part is the narrower and inner and lower inner ring tooth rounding off in outer end, namely the narrow lower end width in lower wedge-shaped part upper end, therefore lower inner ring tooth is when coordinating with the inserting of lower outer shroud tooth, and when coordinating with the inserting of upper outer shroud tooth, can play a part of to be slides quickly into inter-tooth slots, it is ensured that the rapidity of locking.Same, wedge-shaped part on upper outer shroud tooth inserting end is fixed, when coordinating, fundamentally avoids the situation of outer shroud tooth and the alignment of lower inner ring tooth with the inserting of lower wedge-shaped part, make outer shroud tooth and lower inner ring tooth that the inter-tooth slots of oneself are slipped into rapidly, realize fast inserted and quick locking.

Lower inner ring tooth stage casing is equipped with the interior spacing ring 031 for preventing lower outer shroud tooth from skidding off lower inner ring tooth.After lower inner ring tooth stage casing ring sets interior spacing ring, lower inner ring tooth is just divided into epimere and two sections of hypomere by interior spacing ring, and hypomere is slided to insert with lower outer shroud tooth and coordinates, and epimere is slided to insert with upper outer shroud tooth and coordinates.The Main Function of spacing ring in arranging, is by spacing for lower outer shroud tooth on the hypomere of lower inner ring tooth, so not only by spacing to a tail cap and locking cap becoming one structure together, and so that a tail cap is slidably reciprocated along lower inner ring tooth hypomere in locking cap.So, when tightening needing or unscrewing tail cap, when can be achieved with by rotation lock cap, and locking is needed, only lower inner ring tooth epimere need to be slided and upper outer shroud tooth is pushed, operation is simpler.

Also include the circular tube shaped clear pen head cap 023 coordinated with conus portion and a post epimere suit, interior snap ring 024 is equipped with written cap mouth inner wall, the outer snap ring 025 being equipped with post with interior snap ring snap fit, written cap outer wall is provided with the rule 026 axially extending along written cap, written cap is provided with internal thread segment 027 away from one section of internal chamber wall of a post and core cavity, threaded post 028 is bolted with internal thread segment, threaded post two ends are installed with the diameter interior cylindrical section 032 equal with internal thread segment external diameter and cylindrical shell of column 029 respectively, and cylindrical shell of column periphery is provided with numb line 030.After arranging written cap, written cap can be sleeved on conus portion and a post epimere, can so play a part of to protect the pen core for exposing conus portion, be suitable for using in storage.Written cap mouth inner wall is provided with interior snap ring, and a post is provided with the outer snap ring with interior snap ring snap fit, and outer snap ring external diameter is more slightly larger than interior snap ring internal diameter.When written cap sleeve is mounted on a post, interior snap ring can cross outer snap ring, be so just limited on a post without external force effect head cap of starting writing, serving locking effect.For convenience of describing, written cap is locked at a state of post epimere and is referred to as quantitative locking state.In this patent, written cap is round tube shape structure, and written cap is provided with internal thread segment away from one section of inwall of a post, is bolted with threaded post in internal thread segment, and threaded post can the relatively written cap axial movement by turn in internal thread segment.Threaded post the inner is installed with interior cylindrical section, threaded post outer end is installed with cylindrical shell of column, interior cylindrical section and cylindrical shell of column diameter are equal to threaded post external diameter, therefore, interior cylindrical section and cylindrical shell of column serve the position-limiting action to threaded post two ends, so that threaded post is circled round dynamic in internal thread segment and can not screw out.Cylindrical shell of column periphery is provided with numb line, can drive threaded post turn by the cylindrical shell of column of turn, namely drive threaded post axial feed, and numb line plays anti-skidding effect.In quantitative locking state, the cylindrical shell of column of turn can arrive the effect for adjusting interior cylindrical section and core cavity spacing, and the spacing is when being exactly positioner no-fix pen core, pen core promotes the length of the core cavity that glides out in spring, therefore can play a part of to adjust cartridge exposing core cavity length by the cylindrical shell of column of turn.In this patent, written cap is transparent, therefore can see the length of cartridge exposing core cavity through written cap, very convenient.Written cap is provided with axially disposed rule, can measure the exact length of cartridge exposing core cavity by the rule, and to adapt to without writing, the requirement of the different application occasion such as setting-out or drawing, versatility is stronger.

Claims

1. a kind of multifunctional ruler, including the chi body of tile horizontally（1）, it is characterized in that：The chi body（1）Including the left ruler being docking together（2）And right ruler（3）, left ruler（2）Upper edge be provided with left scale（4）, right ruler（3）Upper edge be provided with right scale（5）, left ruler（2）Upper right quarter and right ruler（3）Upper left quarter is by extended hinge before and after hinge（6）Hinged, left ruler（2）Right side be provided with right magnetic hole（7）, right magnetic hole（7）Lateral surface and left ruler are inside installed with（2）The concordant right magnetic patch in right side（29）, right ruler（3）Left side be provided with left magnetic hole（8）, left magnetic hole（8）Lateral surface and right ruler are inside installed with（3）The concordant left magnetic patch in left side（9）, left ruler（2）And right ruler（3）Around hinge（6）Swing into right magnetic patch during straightened condition（29）With left magnetic patch（9）Fixation is attached together and left ruler（2）And right ruler（3）It is fixed together, left ruler（2）And right ruler（3）Around hinge（6）Left ruler when swinging into parastate（2）And right ruler（3）Two ends are alignd and adjacent surface becomes placed against, left ruler（2）Or right ruler（3）Centre bore of the cross section for quadrangle is provided with the middle part of bottom surface（10）, centre bore（10）Center iron hoop is installed with inwall（11）, left ruler（2）And right ruler（3）Away from hinge（6）Swinging end end face on be installed with end iron plate（12）, per side end iron plate（12）And connected left ruler（2）And right ruler（3）It is end hole circular or that side is oval that swinging end end face is provided with three cross sections（13）, also include five and end hole（13）The cylinder that inserting coordinates（14）, cylinder（14）Outer end is coaxially installed with and centre bore（10）The newel of cooperation can only be inserted（16）, newel（16）And cylinder（14）Connecting portion be vertically installed with square magnet plate（17）, magnet plate（17）Edge both sides are provided with and magnet plate（17）The slideway that edge be arranged in parallel（18）, the first two cylinder（14）The inner is installed with epiconus（15）, latter two cylinder（14）The inner is installed with blade（25）, also include paintbrush（24）, paintbrush（24）Including last cylinder（14）And the magnet plate being attached thereto（17）And newel（16）, left ruler（2）And right ruler（3）Bottom surface is correspondingly provided with along chi body（1）The slide rail that length direction extends（19）, magnet plate（17）By slideway（18）Clamp enters slide rail（19）Cylinder afterwards（14）Outer wall and newel（16）Side wall all with chi body（1）Bottom surface snug fit and magnet plate（17）Can only be along slide rail（19）Length direction slides, and also includes cylinder（14）, newel（16）And magnet plate（17）It is positioned at chi body（1）On locking device, also include a sewing needle（30）, sewing needle（30）On be wound with sewing thread（26）, also include the magnet plate being fixed together（17）And newel（16）, magnet plate（17）And newel（16）Middle part is provided with and end hole（13）Corresponding needlework chamber（27）, needlework chamber（27）Interior fixing filling and sewing needle（25）The foam block that inserting coordinates（28）, the paintbrush（24）Including by cylinder（14）The post for constituting（01）, a post（01）A post chamber is inside provided with（05）, a post（01）Top is coaxially installed with conus portion（02）, conus portion（02）Conical cavity is inside coaxially provided with（03）, conus portion（02）Top is coaxially provided with and conical cavity（03）The cylindrical core cavity of connection（04）, a post（01）Lower end is coaxially installed with external screw thread ring（06）, a post（01）Hypomere is installed with by magnet plate（17）The magnet ring of composition（007）, magnet ring（007）Shape and size and magnet plate（17）Identical, magnet ring（007）Edge both sides also are provided with and slide rail（19）The chute that can only be slidably matched（008）, also include by newel（16）The cap body of composition, cap body include and external screw thread ring（06）The tail cap that hypomere spiral shell coordinates（09）, a tail cap（09）Coaxial fixed oriented core cavity on inner bottom surface（04）The core pipe of extension（010）, core pipe（010）Inner chamber hypomere is loaded with spring（011）, core pipe（010）Epimere is fitted with pen core（012）, pen core（012）Epimere and core cavity（04）Inserting coordinates, and also includes to be arranged on a post chamber（05）An inherent tail cap（09）By pen core under driving（012）With a post（01）The positioner being fixed together, a post（01）With a tail cap（09）Between be provided with locking device, the positioner includes to be inserted into a post chamber（05）Interior and be sleeved on core pipe（011）Outer positioning pipe（013）, positioning pipe（013）Lower end and a tail cap（09）Inner bottom surface compression fit, positioning pipe（013）Upper end is fixed to be equipped with and is upwardly extended and gradually to positioning pipe（013）The location-plate of axial line bending（014）, adjacent positioned plate（014）Between be provided with gap（017）, each location-plate（014）Epimere madial wall is surrounded into and pen core（012）The positioning chamber of isometrical setting（018）, positioning chamber（018）Cavity wall and pen core（012）Outer wall compression fit, each location-plate（014）Lateral wall is surrounded into and conical cavity（03）Corresponding cone and and conical cavity（03）Cavity wall is corresponded to and is slidably matched, conical cavity（03）Cavity wall and a post chamber（05）The convergence part of cavity wall is provided with the tapered inner ring of rounding off cooperation（015）, positioning pipe（013）Outer wall and location-plate（014）Lateral wall convergence part is provided with and tapered inner ring（015）The tapered outer shroud for coordinating（016）.

2. multifunctional ruler as claimed in claim 1, is characterized in that：The locking device includes to be installed in slide rail（19）The iron plate bar of bottom（20）.

3. multifunctional ruler as claimed in claim 2, is characterized in that：Chi body（1）Bottom is additionally provided with and slide rail（19）Be arranged in parallel cross section identical pair slide rail（21）, also include and magnet plate（17）Same shape and the plastic plate of size（22）, plastic plate（22）Middle part is provided with one and cylinder（14）Cross section same shape and the slide opening of size（23）.

4. multifunctional ruler as claimed in claim 3, is characterized in that：The locking device includes that coaxial rings are located at a tail cap（09）The lower outer shroud tooth of periphery（07）, lower outer shroud tooth（07）Along a post（01）Axially extending, a post（01）Hypomere periphery is coaxially equipped with and lower outer shroud tooth（07）Axially align the upper outer shroud tooth of setting（08）, a tail cap（09）On be set with locking cap（019）, locking cap（019）The lower inner ring tooth of axially extending setting is equipped with inwall（020）, lower inner ring tooth（020）With lower outer shroud tooth（07）, upper outer shroud tooth（08）The inserting that slides axially coordinates.

5. multifunctional ruler as claimed in claim 4, is characterized in that：Lower inner ring tooth（020）Inserting end is installed with the narrower inner and lower inner ring tooth in outer end（020）The lower wedge-shaped part of the round and smooth docking in inserting end（021）, upper outer shroud tooth（08）Inserting end is installed with the narrower connection end of free end with upper outer shroud tooth（08）The upper wedge-shaped part of round and smooth docking（022）.

6. multifunctional ruler as claimed in claim 5, is characterized in that：Lower inner ring tooth（020）Stage casing is equipped with prevents lower outer shroud tooth（07）Skid off lower inner ring tooth（020）Interior spacing ring（031）.

7. multifunctional ruler as claimed in claim 6, is characterized in that：Also include and conus portion（02）With a post（01）The circular tube shaped clear pen head cap that epimere suit coordinates（023）, written cap（023）Interior snap ring is equipped with mouth inner wall（024）, a post（01）On be equipped with and interior snap ring（024）The outer snap ring of snap fit（025）, written cap（023）Outer wall is provided with along written cap（023）Axially extending rule（026）, written cap（023）Away from a post（01）And core cavity（04）One section of internal chamber wall be provided with internal thread segment（027）, internal thread segment（027）Threaded post is inside bolted with（028）, threaded post（028）Two ends are installed with diameter and internal thread segment respectively（027）The equal interior cylindrical section of external diameter（032）With cylindrical shell of column（029）, cylindrical shell of column（029）Periphery is provided with numb line（030）.