CN2131706Y - Multipurpose rule - Google Patents

Abstract

The utility model relates to a plotting appliance, mainly comprising a main scale and an auxiliary scale. The plotting appliance is characterized in that the main scale is provided with a guide slot, in which a slider block having 360 DEG scale lines is arranged; one end of the auxiliary scale is movably connected with the coincident position of the slider block and the calibration center of the slider block in the middle graticule of the auxiliary scale by connecting pieces. The plotting appliance can conveniently draw straight lines, arbitrary angles, oblique lines and parallel lines via the move of the auxiliary scale as the slider block and the rotation around the calibration center to achieve the effect of plotting appliance with multiple functions.

Description

Multipurpose rule

The utility model relates to drawing article, particularly a kind of chi.

No matter existing chi is ruler or T-square, though simple in structure, function of use is single, needs other drawing instruments to cooperate and just can finish mapping, must be used with set square as cross-hatching.

The purpose of this utility model provides a kind of multi-functional chi that has.

Design of the present utility model is such, it comprises main scale and pays chi, feature is: be provided with a guide groove parallel with the chi limit on main scale, be furnished with the slide block that a surface has 360 ° of graduation marks in the guide groove, pay of chi and flexibly connect with connector with the place of coincidence, scale center of slide block with the middle title line of slide block at pair chi.Like this, the slide block band and is paid a chi and can slide along guide groove, pays chi and can rotate around slide block scale center, thereby make it have the function that ruler, protractor, set square and they are used in combination, and can draw straight line, angle, oblique line and parallel lines arbitrarily easily.

Be provided with hole or groove, penholder therein on pair chi, a chi is paid in rotation simultaneously, can draw the garden arc.

Described guide groove is preferably dovetail groove.

Providing embodiment below by accompanying drawing comes the utility model is further described.

Fig. 1 is the utility model structural representation;

Fig. 2 is main scale and pays chi when overlapping, pays the profile of chi and slide block junction;

See figures.1.and.2, a dovetail groove parallel with the chi limit (5) is arranged above the main scale (6), is furnished with swallow-tail form slide block (4) in the groove, there are 360 ° of graduation marks on its surface, and paying on the chi (1) has a groove, and trough rim has row's semicircle hole (2), there are bearing pin screw (7) and knob (8) in intersection point place, scale center at the middle graticule (3) of paying chi (1) and slide block (4), they flexibly connect pays chi and slide block, and knob (8) can unscrew or screw, and pays chi and can rotate or be fixed on the desired position.

This multipurpose ruler is used the transparent material manufacturing.

Claims (3)

1, a kind of multipurpose ruler, belong to drawing article, comprise main scale and pay chi, be characterised in that described main scale is provided with the guide groove parallel with the chi limit, be furnished with the slide block that a surface has 360 ° of graduation marks in the guide groove, pay of chi and flexibly connect with connector with the place of coincidence, scale center of slide block with the middle graticule of slide block at pair chi.

2, multipurpose ruler according to claim 1 is characterised in that described pair of chi is provided with groove or hole.

3, multipurpose ruler according to claim 1 and 2 is characterised in that described guide groove is a dovetail groove.

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