CN209116900U - A kind of dedicated multifunctional angular measuring device of project cost - Google Patents

Abstract

The utility model relates to Project Cost Fields, for the low problem of the mapping precision of angle measurement unit, provide a kind of dedicated multifunctional angular measuring device of project cost, the technical solution is as follows: including main scale and the auxiliary scale being articulated on main scale, main scale is in semicircle shape, semi-circular hole is provided on main scale, the shape of semi-circular hole and the shape of main scale are consistent, the radius of the radius ratio main scale of semi-circular hole is small, auxiliary scale is in a rectangular parallelepiped shape, the hinge joint of auxiliary scale and main scale is located at the center location of semi-circular hole, the length direction of auxiliary scale is radially extended along semi-circular hole, it is recessed on the circular arc inner wall of semi-circular hole fluted, auxiliary scale is placed in groove and slides along the groove far from one end of hinge joint, the first graduation mark of instruction angle is equipped in groove.Angle is determined using two lines or draws an angle, is conducive to the precision for improving mapping, so that mapped results are more accurate, to be conducive to improve the precision of the budget result of project cost.

Description

A kind of dedicated multifunctional angular measuring device of project cost

Technical field

The utility model relates to Project Cost Fields, more specifically, it relates to which a kind of project cost is dedicated multi-functional Angle measurement unit.

Background technique

Project cost, which refers to, carries out the full payment that a certain engineering construction is spent, and core content is investment estimate, sets Count budgetary estimate, working drawing budget, Engineering Settlement, final account for completed project etc..The main task of project cost is: according to drawing, quota and Bill code calculates direct cost, enterprise administration expense included in engineering, measure expense, planning expense, profit and tax etc..

Under normal circumstances, the measurement of project cost and the relatively high precision of needs of drawing, just can guarantee budget result Precision.The angle measurement unit that existing project cost uses is usually protractor, and existing protractor is usually one and half Round transparent plastic sheet is provided with through-hole in the center location of plastic plate, graduation mark is carved on the arc-shaped edges of plastic plate, existing The method of measurement angle be usually by through-hole alignment apex angle, then by the graduation mark on plastic plate it is corresponding be aligned with two sides at angle with Read angle；The method of existing drawing angle is usually using through-hole as corner point, then finds corresponding two graduation marks of angle, Using the endpoint of corresponding two graduation marks as the endpoint on two sides at angle, then three points are connected to form angle.

But through-hole generally all has certain aperture, in order to which pen tip can pass through through-hole to carry out angle drafting, through-hole hole The size of diameter is generally all more much larger than the vertex of angle, therefore, is difficult to during angle measurement by through-hole alignment vertex, In drawing course, also it is easy so that being oblique point by the vertex that through-hole is found, so that the error of angle mapping increases, to be easy So that biggish error occurs in budget result, still there is improved space.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of dedicated more function of project cost Energy angle measurement unit has the advantages that improve the precision of mapping.

To achieve the above object, the utility model provides following technical solution:

A kind of dedicated multifunctional angular measuring device of project cost, including main scale and the auxiliary scale being articulated on main scale, The main scale is in semicircle shape, is provided with semi-circular hole on the main scale, the shape of the semi-circular hole and the shape of main scale are consistent, institute The radius for stating the radius ratio main scale of semi-circular hole is small, and in a rectangular parallelepiped shape, the hinge joint of the auxiliary scale and main scale is located at the auxiliary scale The center location of semi-circular hole, length direction the radially extending along semi-circular hole of the auxiliary scale, the circular arc of the semi-circular hole It is recessed on inner wall fluted, the auxiliary scale is placed in groove and slides along the groove far from one end of hinge joint, sets in the groove There is the first graduation mark of instruction angle.

By adopting the above technical scheme, when needing measurement angle, by the straight line aligning inner institute of main scale upper half round hole The wherein a line at the angle that need to be measured is long, is rotated further by another side length that auxiliary scale makes the straight line of auxiliary scale and the angle of required measurement It is overlapped, and the registration of corresponding the first graduation mark being directed toward of the straight line for reading auxiliary scale is to get the angle at required measurement angle；Work as needs When drawing angle, rotation auxiliary scale makes the straight line of auxiliary scale be directed toward the first graduation mark of correspondence for needing to draw angle, then uses pen Along the straight line of auxiliary scale and the straight line of main scale close to the setting-out of the side of semi-circular hole to get the angle of required drafting, operation letter Just, be conducive to improve working efficiency, meanwhile, surveyed angle is determined by two lines or draws an angle, is conducive to improve and be surveyed The precision drawn, so that mapped results are more accurate, to be conducive to improve the precision of the budget result of project cost；Pass through The setting of groove reduces auxiliary scale and is easily separated from groove in sliding process so that the sliding trace of auxiliary scale is limited in groove The case where；Meanwhile the setting in groove is set to by the first graduation mark, be conducive to protect the first graduation mark, so that the first scale Line is not easy to contact friction with other objects in use or during storage and the first graduation mark is caused to be worn away Situation is conducive to the clarity for improving the first graduation mark, so that the precision of mapping angle improves, so that angle measurement fills The service life set extends；In addition, also helping auxiliary scale and the first graduation mark by the setting that the first graduation mark is placed in groove Alignment so that the alignment of registration and reading without by other media, reducing because of caused by the refraction of other media accidentally Difference, so that the error of mapping is reduced, thus be conducive to improve the precision of mapped results, so that the budget result of project cost Precision improves.

Preferably, the bottom wall of the auxiliary scale is equipped with rolling member, and the rolling member slides along the groove.

By adopting the above technical scheme, by the setting of rolling member, be conducive to reduce auxiliary scale in sliding process with groove Frictional force, convenient for pushing auxiliary scale to slide along the groove；Meanwhile so that the sliding of auxiliary scale is not easy to cause to wear to the first graduation mark, Be conducive to improve the clarity of the first graduation mark, to be conducive to improve the precision of reading, while being conducive to extend angle survey Measure the service life of device.

Preferably, the section of the groove is stepped, and the groove includes first sliding groove and second sliding slot, and described The bottom wall of one sliding slot than second sliding slot bottom wall closer to main scale bottom wall, the rolling member along first sliding groove slide, the pair There are gaps for the bottom wall of bottom wall and first sliding groove of the ruler far from hinge joint one end.

By adopting the above technical scheme, by the stepped setting in the section of groove and rolling member slides along first sliding groove Setting, so that auxiliary scale and rolling member are not easy to contact with the first graduation mark in the sliding process of auxiliary scale, so that secondary Ruler and rolling member are not easy to cause to wear to the first graduation mark in the sliding process of auxiliary scale, are conducive to improve the first scale The precision of line so that the precision of mapped results improves, while being conducive to extend the service life of angle measurement unit；Together When, so that auxiliary scale is not easy to cause between auxiliary scale and the first graduation mark that there are too big because rolling member protrudes from the bottom wall of auxiliary scale It reduces so that auxiliary scale and the alignment accuracy of the first graduation mark improve because auxiliary scale and the gap of the first graduation mark are excessive in gap And cause to read the case where be easy to causeing large error by different angle, be conducive to the precision for improving reading, so that mapping As a result precision improves, so that the precision of the budget result of project cost improves.

Preferably, the straight line of the main scale is all provided with close to the side of the side of semi-circular hole and auxiliary scale in the width direction There is the second graduation mark of indicating length.

By adopting the above technical scheme, by being equipped with the setting of the second graduation mark on main scale and auxiliary scale, so that angle is surveyed Amount device is provided simultaneously with the function of measurement length, is conducive to the scope of application for expanding angle measurement unit；Meanwhile so that angle exists Its length can be determined simultaneously in mapping process, it is easy to operate, it is also convenient for the length ratio of control angle.

Preferably, the two sides of the auxiliary scale in the width direction are equipped with the second graduation mark of indicating length.

By adopting the above technical scheme, the second graduation mark of indicating length is equipped with by the two sides of auxiliary scale in the width direction Setting advantageously reduces auxiliary scale at angle so that the two sides of auxiliary scale in the width direction can be employed as mapping angle and measure length The angle for needing to rotate in degree mapping process, it is easy to operate.

Preferably, the one end of the auxiliary scale far from hinge joint is in " M " font.

By adopting the above technical scheme, one end by auxiliary scale far from hinge joint is in the setting of " M " font, so that auxiliary scale is separate The two sides of hinge joint one end in the width direction are sharply to be in pointer shape, consequently facilitating being aligned for the first quarter according to the sharp end of auxiliary scale Line is spent, so that registration reading is more convenient accurate, is conducive to the precision for being conducive to improve mapping while improving working efficiency, So that the precision of the budget result of project cost improves.

Preferably, the bottom wall of part that the auxiliary scale is placed in semi-circular hole is flushed with the bottom wall of main scale.

By adopting the above technical scheme, the bottom wall of part that semi-circular hole is placed in by auxiliary scale is set with what the bottom wall of main scale flushed It sets, so that being not easy to be conducive to improve and survey in angle there are gap between auxiliary scale and mapping drawing during angle mapping Be aligned during drawing with the straight line of auxiliary scale or along auxiliary scale the precision that draws lines of straight line, to be conducive to improve the essence of mapping Accuracy, so that the precision of the budget result of project cost improves.

Preferably, through-hole is provided in the auxiliary scale.

By adopting the above technical scheme, penholder is entered in through-hole and is rotated with pen driving auxiliary scale, circular arc line can be drawn, so that Angle measurement unit is provided simultaneously with the function of drawing circular arc line, is conducive to the scope of application for expanding angle measurement unit；In addition, logical The setting for crossing through-hole is also convenient for driving the rotation of auxiliary scale by through-hole, easy to operate.

Preferably, the through-hole is equipped with several, and the pore size of several through-holes is inconsistent.

By adopting the above technical scheme, the setting inconsistent by the pore size of several through-holes, so that the aperture of through-hole It is adaptable to different size of pen, is conducive to the scope of application for expanding angle measurement unit；Meanwhile so that drawing gained circular arc line Precision it is higher, reduce the feelings that penholder is not suitable with the aperture of through-hole and in drawing process penholder is caused to be easy inclination or offset Condition.

Preferably, the straight line of the main scale is also recessed close to the side of semi-circular hole the holding tank of storage auxiliary scale, institute Holding tank is stated to be connected to groove and semi-circular hole.

By adopting the above technical scheme, by the setting of holding tank so that auxiliary scale do not need using when can turn to receiving In slot, be conducive to protect auxiliary scale, reduce auxiliary scale and be easy to contact to rub with other objects during preservation to lead to second The case where graduation mark is worn is conducive to the clarity for improving the second graduation mark, to be conducive to improve the precision of mapping.

In conclusion the utility model has the following beneficial effects:

1. determining angle using two lines or drawing an angle, be conducive to the precision for improving mapping, so that mapped results It is more accurate, to be conducive to improve the precision of the budget result of project cost；

2. by the cooperation of main scale and auxiliary scale so that the drafting of angle can a completion, it is easy to operate, be conducive to improve work Make to be conducive to improve while efficiency to draw precision；

3., so that the sliding trace of auxiliary scale is limited in groove, reducing auxiliary scale in sliding process by the setting of groove In the case where being easily separated from sliding slot；

4. by the first graduation mark be set to groove in setting so that the first graduation mark be not easy in use or The case where contacting friction with other objects during storage and the first graduation mark caused to be worn away, so that the essence of mapping angle Accuracy improves, so that the service life of angle measurement unit extends；

5. be placed in the setting in groove by the first graduation mark, be conducive to improve auxiliary scale be aligned with the first graduation mark it is accurate Degree, so that the alignment and reading of registration are not necessarily to reduce the error because of caused by the refraction of other media by other media, from And be conducive to improve the precision of mapped results.

Detailed description of the invention

Fig. 1 is a kind of overall structure signal of the dedicated multifunctional angular measuring device of project cost in the utility model Figure；

Fig. 2 is a kind of internal structure signal of the dedicated multifunctional angular measuring device of project cost in the utility model Figure；

Fig. 3 is the enlarged diagram in the portion A in Fig. 2；

Fig. 4 is in the utility model for illustrating a kind of bottom surface of dedicated multifunctional angular measuring device of project cost Overall structure diagram.

In figure: 1, main scale；11, the first graduation mark；12, the second graduation mark；13, shaft；14, groove；141, first sliding groove； 142, second sliding slot；15, holding tank；16, semi-circular hole；2, auxiliary scale；21, through-hole；22, rolling member；221, ball.

Specific embodiment

With reference to the accompanying drawings and embodiments, the utility model is described in further detail.

A kind of dedicated multifunctional angular measuring device of project cost, referring to Fig. 1 and Fig. 2, including main scale 1 and hinged In the auxiliary scale 2 on main scale 1, main scale 1 is in semicircle shape, and semi-circular hole 16, the shape and main scale 1 of semi-circular hole 16 are provided on main scale 1 Shape it is consistent, the radius of semi-circular hole 16 is less than the radius of main scale 1.In a rectangular parallelepiped shape, auxiliary scale 2 is hinged with main scale 1 for auxiliary scale 2 Point is located at the center location of semi-circular hole 16, and auxiliary scale 2 and the hinge joint of main scale 1 are located at the one end of auxiliary scale 2 along its length, auxiliary scale 2 length direction is radially extended along semi-circular hole 16.There is for auxiliary scale 2 far from hinged recess on the circular arc inner wall of semi-circular hole 16 The groove 14 of one end sliding of point, interior the first graduation mark 11 for being equipped with instruction angle of groove 14.

Referring to Fig. 1, the inner wall of the straight line of semi-circular hole 16 is protruding with shaft 13, and shaft 13 is fixed on the straight of main scale 1 Close to the side of semi-circular hole 16, shaft 13 is located at the center location of semi-circular hole 16 on line side, and shaft 13 is located at main scale 1 simultaneously The middle position of straight line along its length.The axial direction of shaft 13 is vertical with main scale 1.

Referring to fig. 4, auxiliary scale 2 is rotationally connected in shaft 13, two apex angles of one end that auxiliary scale 2 and shaft 13 are rotatablely connected Rounded corner.

Referring to fig. 2 and Fig. 3, the straight line of main scale 1 close to the side of semi-circular hole 16 and auxiliary scale 2 in the width direction Two sides are equipped with the second graduation mark 12 of indicating length, and the part that auxiliary scale 2 is placed in groove 14 does not set the second graduation mark 12.

Referring to fig. 2 and Fig. 3, auxiliary scale 2 are located at the thickness of the part in groove 14 than the part in semi-circular hole 16 Thickness it is small, the bottom wall that auxiliary scale 2 is located at the part in semi-circular hole 16 is flushed with the bottom wall of main scale 1.

Referring to fig. 4, the straight line of main scale 1 is provided with the receiving being embedded in for auxiliary scale 2 on the bottom wall of 16 side of semi-circular hole Slot 15, holding tank 15 are connected to groove 14 and semi-circular hole 16.

Referring to fig. 2 and Fig. 3, the section of groove 14 is stepped, and groove 14 includes first sliding groove 141 and second sliding slot 142, the bottom wall of first sliding groove 141 than second sliding slot 142 bottom wall closer to main scale 1 bottom wall.First graduation mark 11 is set to the On the bottom wall of two sliding slots 142, the first graduation mark 11 is located at the neighboring position of the arc-shaped edges of main scale 1.

Referring to fig. 2 and Fig. 3, the bottom wall of auxiliary scale 2 is equipped with the rolling member 22 slided along first sliding groove 141, in this implementation In example, rolling member 22 is ball 221.Ball 221 is rotationally connected on the bottom wall of auxiliary scale 2, and ball 221 is partially submerged into auxiliary scale 2 Bottom wall, 221 part of ball protrude from the bottom wall of auxiliary scale 2.Ball 221 protrudes the thickness of the part of auxiliary scale 2 than the rank in groove 14 The thickness of ladder is thick, and there are gaps between the bottom wall of auxiliary scale 2 and the bottom wall of second sliding slot 142.Auxiliary scale 2 is placed in the part in groove 14 End be in " M " font.

Referring to fig. 4, several through-holes 21 are also provided in auxiliary scale 2, in the present embodiment, there are three through-hole 21 is set, three through-holes 21 are uniformly distributed along the length direction of auxiliary scale 2, and the pore size of three through-holes 21 is inconsistent.Three through-holes 21 are respectively positioned on auxiliary scale 2 middle position in the width direction.

Main scale 1 and the material of auxiliary scale 2 are transparent plastic sheet.

The operating condition and principle of the present embodiment are as follows:

The straight line that main scale 1 is equipped with the second graduation mark 12 when needing measurement angle and required measurement angle are wherein The long alignment of a line is rotated further by wherein straight line side and required measurement angle that auxiliary scale 2 makes auxiliary scale 2 be equipped with the second graduation mark 12 The alignment of another side length, and read the sharp end of straight line that auxiliary scale 2 is overlapped with the side length at angle far from hinge joint one end it is right The registration answered is to get the required angle for measuring angle.

When needing to draw the angle of special angle, rotation auxiliary scale 2 makes the wherein straight line of auxiliary scale 2 outlying from hinge joint The sharp end of one end draws the registration of the first graduation mark of correspondence 11 of angle needed for being directed toward, be then directed toward first along auxiliary scale 2 with pen The straight line and main scale 1 of graduation mark 11 are equipped with the straight line setting-out of the second graduation mark 12 to get the angle of required drafting, operation letter Just, be conducive to improve working efficiency；Meanwhile determining angle by two straight lines or drawing an angle, be conducive to improve mapping knot The precision of fruit, so that the precision of the budget result of project cost improves.

By the setting of groove 14, so that the rotary motion trace of auxiliary scale 2 is defined, be conducive to auxiliary scale 2 always along the first scale The orientation of line 11 rotates, and reduces auxiliary scale 2 and is easily separated from groove 14 during rotation and separates and make with the first graduation mark 11 The case where at error.

It is set to the setting in groove 14 by the first graduation mark 11, is conducive to protect the first graduation mark 11, is reduced First graduation mark 11 is easy to contact the case where friction causes the first graduation mark 11 to be worn away with other objects, is conducive to raising first The clarity of graduation mark 11, thus be conducive to improve the precision of reading, so that the precision of mapped results improves, so that The precision of the budget result of project cost improves, while the service life of angle measurement unit is improved；Further, it enables secondary The precision that ruler 2 is aligned with the first graduation mark 11 improves, so that the reading data of angle measurement unit is not necessarily to through other media, The case where reduction causes error because of the refraction of other media is conducive to the precision for improving mapped results, so that engineering The precision of account valuation improves.

By being rotatably connected to the setting of ball 221 and the stepped setting in section of groove 14 in auxiliary scale 2, simultaneously So that ball 221 is slided along first sliding groove 141, is conducive to reduce frictional force of the auxiliary scale 2 in sliding process with groove 14, be convenient for Auxiliary scale 2 is pushed to slide along groove 14；Meanwhile there are gaps so that auxiliary scale 2 is always with the bottom wall of second sliding slot 142, so that ball 221 and auxiliary scale 2 be not easy to contact with the first graduation mark 11 in the sliding process of auxiliary scale 2 so that the first graduation mark 11 is not It is easy to be worn, is conducive to the clarity for improving the first graduation mark 11, so that the service life of angle measurement unit improves, simultaneously The precision for being conducive to improve mapped results, so that the precision of the budget result of project cost improves；In addition, in groove 14 Ladder make auxiliary scale 2 can the first graduation mark of infinite approach 11, advantageously reduce and made because ball 221 is raised in the bottom wall of auxiliary scale 2 At the excessive situation in the gap between auxiliary scale 2 and the first graduation mark 11, to be conducive to improve sharp end and the first quarter of auxiliary scale 2 The precision that line 11 is aligned is spent, so that the precision of mapped results improves, so that the budget result of project cost is accurate Degree improves.

The setting of the second graduation mark 12 is equipped with by the two sides of main scale 1 and auxiliary scale 2 in the width direction, so that angle is surveyed Amount device is provided simultaneously with the function of measurement length, is conducive to the scope of application for expanding angle measurement unit；Meanwhile being conducive to surveying During drawing angle while its length is determined, convenient for the ratio control of the side length at angle；Further, it enables auxiliary scale 2 is in the width direction Two sides be used equally for surveying and drawing, be conducive to reduce auxiliary scale 2 in mapping process and need the angle that rotates, it is easy to operate.

It is in the setting of " M " font by the end that auxiliary scale 2 is placed in the part in groove 14, so that auxiliary scale 2 is placed in groove 14 The two sides of interior end in the width direction are sharply to be in pointer shape, so that the registration of the first graduation mark 11 is convenient for passing through point The instruction at sharp end is conducive to improve the precision that registration is read to read, so that the precision of mapped results improves, so that The precision of the budget result of project cost improves, meanwhile, so that the registration of the first graduation mark 11 is convenient for the finger according to sharp end Show reading, is conducive to improve working efficiency.

The setting flushed by the bottom wall that auxiliary scale 2 is located at the part in semi-circular hole 16 with the bottom wall of main scale 1, so that auxiliary scale 2 bottom wall is not easy during angle is surveyed and drawn and surveys and draws between drawing that there are gaps, to be conducive to the straight of raising auxiliary scale 2 Line while be aligned during surveying and drawing angle with the side length at angle or along while the precision that draws lines so that the precision of mapped results mentions Height, and then be conducive to improve the precision of the budget result of project cost.

By being provided with the setting of through-hole 21 in auxiliary scale 2, convenient for penholder being entered in through-hole 21 and is driven auxiliary scale 2 turn around hinge joint It moves and draws circular arc line, be conducive to the scope of application for expanding angle measurement unit, so that angle measurement unit is provided simultaneously with drafting The function of circular arc line；Meanwhile convenient for driving auxiliary scale 2 to rotate around hinge joint by through-hole 21 during surveying and drawing angle, operation It is easy；In addition, the through-hole 21 inconsistent by three apertures of setting, so that through-hole 21 is adaptable to the penholder of same size, so that The scope of application expansion of circular arc line function is drawn, while being conducive to improve the precision that circular arc line is drawn, reduces because of penholder and leads to The size in 21 aperture of hole is not adapted to and penholder is caused to be easy to shake in drawing process, and causes to draw resulting circular arc line appearance The case where offset.

By the setting of holding tank 15 so that auxiliary scale 2 do not need using when rotatably store in holding tank 15 with quilt Protection, so that auxiliary scale 2 is not easy to contact friction with other objects and the second graduation mark 12 is caused to be worn during preservation Situation is conducive to the clarity for improving the second graduation mark 12, convenient for reading, is conducive to the precision for improving reading.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of dedicated multifunctional angular measuring device of project cost, it is characterized in that: including main scale (1) and being articulated with main scale (1) auxiliary scale (2) on, the main scale (1) are in semicircle shape, are provided with semi-circular hole (16), the semi-circular hole on the main scale (1) (16) shape is consistent with the shape of main scale (1), and the radius of the radius ratio main scale (1) of the semi-circular hole (16) is small, the pair In a rectangular parallelepiped shape, the hinge joint of the auxiliary scale (2) and main scale (1) is located at the center location of semi-circular hole (16), the pair to ruler (2) Length direction the radially extending along semi-circular hole (16) of ruler (2), recess has recessed on the circular arc inner wall of the semi-circular hole (16) Slot (14), the auxiliary scale (2) are placed in groove (14) far from one end of hinge joint and slide along groove (14), the groove (14) Interior the first graduation mark (11) for being equipped with instruction angle.

2. the dedicated multifunctional angular measuring device of project cost according to claim 1, it is characterized in that: the auxiliary scale (2) bottom wall is equipped with rolling member (22), and the rolling member (22) is slided along groove (14).

3. the dedicated multifunctional angular measuring device of project cost according to claim 2, it is characterized in that: the groove (14) section is stepped, and the groove (14) includes first sliding groove (141) and second sliding slot (142), and described first is sliding The bottom wall of slot (141) than second sliding slot (142) bottom wall closer to the bottom wall of main scale (1), the rolling member (22) is sliding along first Slot (141) sliding, there are gaps for the bottom wall of bottom wall and first sliding groove (141) of the auxiliary scale (2) far from hinge joint one end.

4. the dedicated multifunctional angular measuring device of project cost according to claim 1, it is characterized in that: the main scale (1) straight line is equipped with instruction length close to the wherein side of the side and auxiliary scale (2) of semi-circular hole (16) in the width direction The second graduation mark (12) of degree.

5. the dedicated multifunctional angular measuring device of project cost according to claim 4, it is characterized in that: the auxiliary scale (2) two sides in the width direction are equipped with the second graduation mark (12) of indicating length.

6. the dedicated multifunctional angular measuring device of project cost according to claim 5, it is characterized in that: the auxiliary scale (2) one end far from hinge joint is in " M " font.

7. the dedicated multifunctional angular measuring device of project cost according to claim 1, it is characterized in that: the auxiliary scale (2) bottom wall for the part being placed in semi-circular hole (16) is flushed with the bottom wall of main scale (1).

8. the dedicated multifunctional angular measuring device of project cost according to claim 1, it is characterized in that: the auxiliary scale (2) through-hole (21) are provided on.

9. the dedicated multifunctional angular measuring device of project cost according to claim 8, it is characterized in that: the through-hole (21) several are equipped with, the pore size of several through-holes (21) is inconsistent.

10. the dedicated multifunctional angular measuring device of project cost according to claim 1, it is characterized in that: the main scale (1) straight line is also recessed close to the side of semi-circular hole (16) the holding tank of storage auxiliary scale (2) (15), the holding tank (15) it is connected to groove (14) and semi-circular hole (16).