CN2172211Y

CN2172211Y - Adjustable T-square

Info

Publication number: CN2172211Y
Application number: CN 93234890
Authority: CN
Inventors: 李向红
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-23
Filing date: 1993-10-23
Publication date: 1994-07-20
Anticipated expiration: 2003-10-23

Abstract

The utility model discloses an adjustable T-square which has the main structure that a dovetail (4) capable of sliding in a dovetail groove (3) of a fixed scale (1) is connected with a connecting block (5), the connecting block (5) is provided with an arc chute and a screw hole, two screws respectively pass through the screw hole so that an active scale (6) is connected with the connecting block (5), and the active scale (6) can form any angles with the fixed scale (1) within the range of 0-180 DEG by adjusting the screws. A joint (8) of the active scale (6) is provided with graduations of angles between 0 DEG and 90 DEG, and the sides of the fixed scale (1) and the active scale (6) are respectively provided with graduations of length.

Description

Adjustable T-square

The utility model relates to a kind of drawing instrument of measuring length and angle.

Existing T-square, ruler, angle square etc., it is single that function is, and can not satisfy actual needs; Also must be in drawing or when tabulation by other chi, expense hornwork then when drawing the angle not only spends morely, uses also pretty troublesome.

The purpose of this utility model is, designs a kind of adjustable head t-square, has the function that a chi is used more, not only can make existing T-square and use, and also can be advantageously used in tabulation, draw angle line, parallel lines.

The technical solution of the utility model is, it comprises scale and moving chi, during its design feature, described scale has dovetail groove and groove top along its length for being positioned at the opening of this scale end face, the dovetail that can slide in described dovetail groove is connected through the end of trip bolt with contiguous block, deep-slotted chip breaker and a screw hole that 90 degree arcs are arranged on this contiguous block, there are the attachment screw and the deep-slotted chip breaker on the contiguous block of moving chi two band nuts of connector to be connected with contiguous block with screw hole at its connector place, the connector of described moving chi has 0 to an angle of 90 degrees degree graduation mark, and the side of described scale and moving chi has the length scale respectively.

Make below in conjunction with accompanying drawing and to further specify.

Description of drawings: Fig. 1 is the structure of scale when separating with moving chi, and Fig. 2 is an overall structure.In the drawings:

The 1-scale, the 2-angle index, the 3-dovetail groove, the 4-dovetail, the 5-contiguous block, 6-moves chi, 7-trip bolt, 8-connector, 9-nut, 10-attachment screw, 11-deep-slotted chip breaker, 12,13-length scale.

By accompanying drawing as can be known, the utility model has scale (1) and moving chi (6), its design feature is, scale (1) has along its length dovetail groove (3) and the groove top is the opening that is positioned at described scale (1) end face, the dovetail (4) that can slide in the dovetail groove (3) of described scale (1) links to each other through an end of the same contiguous block of trip bolt (7) (5), and have on the contiguous block (5) 90 the degree arcs deep-slotted chip breaker (11) and a screw hole, there is the moving chi (6) of connector (8) to locate to be connected with this contiguous block (5) with described screw hole through attachment screw (10) and the deep-slotted chip breaker (11) on the contiguous block (5) of two band nuts (9) at its connector (8), described nut (9) is to adopt the handle nut to be advisable, the connector (8) of moving chi (6) has 0 to an angle of 90 degrees degree scale, and the side of described scale (1) and moving chi (6) has respectively length scale (12) and (13). The side of described length scale place chi is take hypotenuse as good (common structure of chi in the prior art).

Design principle of the present utility model and using method be, the dovetail (4) that will be connected to moving chi (6) pushes in the dovetail groove (3) of scale (1), then moving chi (6) can meet at right angles along scale (1) and with it arbitrarily mobile (referring to Fig. 1); Because charting, tabulate, then can arbitrarily using when teaching needs random setting-out; In the time of need drawing parallel lines, scale (1) is fixed on suitable orientation, will moves chi (6) and move to the upper respective length scale place of scale (1), get final product according to the length scale setting-out on the moving chi (6) again; Referring to Fig. 2, draw when arbitrarily angled, remove the attachment screw that passes the above screw hole of contiguous block (5), unscrew the nut on the attachment screw that passes deep-slotted chip breaker, make chi (6) rotate (this screw can slide again) take this screw as axle to required angle (being determined by angle index (2)) in described deep-slotted chip breaker, can be according to the chi angle line that draws, during statistics, it is fixed to fix on chart Behind the chi (1), mobile moving chi (6) can be aimed at rapidly needed number. This chi is deposited at time spent Detachable not.

As known from the above, the utility model integrates T-square, ruler, angle square and function of angle gauge, fixed, moving two chis use capable of being combined or separately use, can draw, measuring angle, measuring length, draw arbitrarily angled PAR, is the ideal tools of drawing, tabulation, teaching, statistics, on the basis of existing T-square, function increases greatly. Have characteristics easy to use, accurate, simple in structure, practical. Can make as required the series of products of all size.

Embodiment: according to accompanying drawing and said structure, dovetail (4) long 10 centimetres and be respectively 10 millimeters and 12 millimeters with upper and lower bottom width and height to be 2 millimeters dovetail groove (3) identical, the connector (8) of moving chi (1) for heart angle, 6 centimetres of gardens of radius be 90 ° fan-shaped, length scale (12) and (13) are unit with the millimeter, are respectively 0.8 meter and 1.0 meters.

Claims

1, a kind of adjustable head t-square, scale (1) and moving chi (6) are arranged, it is characterized in that, scale (1) has dovetail groove (3) and groove top along its length for being positioned at the opening of this scale (1) end face, the dovetail (4) that can slide in described dovetail groove (3) is connected through an end of the same contiguous block of trip bolt (7) (5), deep-slotted chip breaker (11) and a screw hole that 90 degree arcs are arranged on the contiguous block (5), there is the moving chi (6) of connector (8) to locate to be connected with the same contiguous block of described screw hole (5) through the attachment screw (10) and the deep-slotted chip breaker (11) on the contiguous block (5) of two band nuts (9) at its connector (8), the connector (8) of moving chi (6) has 0 to an angle of 90 degrees degree graduation mark, and the side of scale (1) and moving chi (6) has length scale (12) and (13) respectively.