A kind of multipurpose horizontal compasses
Technical field
The utility model relates to drafting instrument, a kind of multipurpose horizontal compasses.
Background technology
Nowadays the compasses of student's practicality are all double-legged compasses, when drawing circle, need to coordinate the use of ruler just can draw the circle of required diameter, use inconvenience, and compasses can only draw circle, the function not measuring, and can not draw straight line.
Summary of the invention
The utility model is for the proposition of above problem, and a kind of multipurpose horizontal compasses of research and design, in order to solve existing double-legged compasses, are used inconvenience and the shortcoming of function singleness.The technological means that the utility model adopts is as follows:
A kind of multipurpose horizontal compasses, comprise blade, the front end of described blade is fixed with divider calipers frame, described divider calipers frame divider calipers frame bottom is fixed with vertical paintbrush, top is fixed with handle I, is provided with the sliding shoe that can slide on blade above described blade, and the bottom of sliding shoe is fixed with picture pin, top is fixed with handle II and being used for and makes sliding shoe fixing holding screw on blade, is fixed with the pointer that points to blade graduation mark on sliding shoe.
The fixed leg having through blade front end as preferred described divider calipers frame, and by hold-down nut the threaded engagement with fixed leg, divider calipers frame is pressed and is fixed on blade front end.
As preferred described sliding shoe, be U-shaped slide block, the U-shaped opening level of sliding shoe is enclosed within on blade, and the two ends up and down of U-shaped opening are fixed with respectively stator and the front apron of vertical direction by screw, sliding shoe can only be slided at blade, can not directly leave blade.
As preferably, when clamp screw oncomelania pine, holding screw front end leaves blade surface, and sliding shoe can slide at blade; When holding screw screws tight, it is fixing that holding screw front end is close to blade surface, and the relative blade of sliding shoe is fixed.
Compared with the prior art, a kind of multipurpose horizontal compasses described in the utility model, the function that measures simultaneously with picture circle and ruler length, draw bowlder, can with the hands operate picture circle simultaneously, can directly by sliding shoe, in the position of blade high scale line, choose and will draw radius of a circle, while measuring, paintbrush and picture pin are separately fixed to the two ends of wanting to measure length, check the position of sliding shoe on blade, can measure length, and can directly draw by blade the straight line of measured length, a teaching aid can reach multiple function, removed the trouble of changing practical teaching aid while drawing from.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, handle I, 2, divider calipers frame, 3, hold-down nut, 4, screw I, 5, screw II, 6, paintbrush, 7, screw III, 8, draw pin, 9, screw IV, 10, handle II, 11, stator, 12, sliding shoe, 13, holding screw, 14, front apron, 15, blade.
The specific embodiment
As shown in Figure 1, a kind of multipurpose horizontal compasses, comprise blade 15, the front end of described blade 15 is fixed with divider calipers frame 2, the fixed leg that described divider calipers frame 2 has through blade 15 front ends, and pass through hold-down nut 3 with the threaded engagement of fixed leg, divider calipers frame 2 is pressed and is fixed on blade 15 front ends.
Described divider calipers frame 2 divider calipers frame 2 bottoms are fixed with vertical paintbrush 6, top is fixed with handle I 1, described blade 15 is provided with the sliding shoe 12 that can slide on blade 15 above, described sliding shoe 12 is U-shaped slide block, the U-shaped opening level of sliding shoe 12 is enclosed within on blade 15, the two ends up and down of U-shaped opening are fixed with respectively stator 11 and the front apron 14 of vertical direction by screw, stator 11 is fixed on sliding shoe 12U shape open upper end by screw I 4 and screw II 5, front apron 14 is fixed on sliding shoe 12U shape open lower end by screw III 7 and screw IV 9, stator 11 and front apron 14 are blocked sliding shoe 12U shape opening part, make sliding shoe 12 can not leave blade 15, can only on blade 15, slide.
The bottom of sliding shoe 12 is fixed with picture pin 8, people can justify as the center of circle by picture pin 8 is fixing, top is fixed with handle II 10 and is used for making sliding shoe 12 fixing holding screw 13 on blade 15, when holding screw 13 spiral shell pines, holding screw 13 front ends leave blade 15 surfaces, and sliding shoe 12 can slide at blade 15; When holding screw 13 screws tight, it is fixing that holding screw 13 front ends are close to blade 15 surfaces, and the relative blade 15 of sliding shoe 12 is fixing, is fixed with the pointer that points to blade 15 graduation marks on sliding shoe 12, described pointer is front apron 14 tips, and making the specified position of pointer is the length of 6, picture pin 8 and paintbrush.
Draw bowlder, regulate sliding shoe 12, make pointer indication graduation mark position for need to draw radius of a circle, draw pin 8 and fix as the center of circle, rotate blade 15, with paintbrush 6, draw circle; While measuring length, pin 8 and the paintbrush 6 corresponding two ends that need to measure length that are fixed on respectively will be drawn, observe pointer indication graduation mark numerical value, be and measure length, and the convenience in order to measure, paintbrush 6 can also be disassembled, replace to draw point, draw pin 8 and draw point and be used in conjunction with, convenient when making to measure location, then the numerical value on the dial of reading pointer indication is just passable, so just can measure the distance between 2; While drawing straight line, directly by blade 15, draw the straight line needing.
The utility model volume is little, is easy to carry about with one.Total length is 25cm, and cost of manufacture is low, and the common teaching aid in market compares, and has very large advantage in function.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.