Simple measurer
Technical field
The present invention relates to a kind of structure technology of survey instrument.
Background technology
China is an ancient civilized country, and long history has brought up the building distribution various places that have national characters.Since wind and rain invasion and attack and long neglected and in disrepair, most ancient building badly brokens, and repairing these ancient buildings is importances of spiritual civilization and material progress construction.Because these buildings generally all do not have drawing, necessary careful mapping could keep the original style and features with these ancient buildings of reduction to greatest extent before repairing.Yet dense trees or other buildings are arranged all generally around these ancient buildings, sighting condition is relatively poor, some existing surveying instruments can't use, and the cornice, rake angle of the ancient building of the overwhelming majority are all than higher---the building of the ancient tower class of loft-style especially, it is longer to encorbelment, and general artificial mapping is very inconvenient again.
Summary of the invention
The object of the invention is a kind of easy measuring instrument at the design of common survey instrument inconvenience measuring object.
The present invention includes a telescopic straight-bar, support member is set on telescopic straight-bar, the root of telescopic straight-bar flexibly connects an expansion link, at the other end of expansion link threading device is set, and rope is set in the threading device, and an end of rope connects hypophysis.
During use, by support member telescopic straight-bar is flatly steadily arranged earlier, and made the hinge contact of telescopic straight-bar and expansion link be butted on a reference point place.Pull out telescopic straight-bar, make telescopic straight-bar be positioned at point to be measured under.In the threading device of expansion link, pass rope or tape, one end of rope or tape is fixed on the end that is hinged of expansion link, pull out and the lifting expansion link, measuring points such as free end arrival with expansion link, and put rope or tape, make the hypophysis of the rope or the tape other end just drop on the telescopic straight-bar, at this moment, fixedly rope or tape are measured and are finished once more.Measure hypophysis in the drop point of telescopic straight-bar distance, be the horizontal range of tested point to reference point to the contact that is hinged; Take off telescopic straight-bar and measure the distance of hypophysis and threading device, be the vertical range of tested point to reference point.The present invention is simple in structure, is easy to produce, the convenient use.Certainly the invention is not restricted to measure ancient building, also be applicable to all similar objects.
Telescopic straight-bar of the present invention comprises the inner and outer pipe of at least two sockets, connects three groups of telescopic support legs A, B, C on outermost tubes respectively, and the upper end movable supporting of telescopic support legs A is at the root of above-mentioned telescopic straight-bar.Not only can realize the steadily effect of support by three groups of telescopic support legs, also can coordinate, the purpose that is up to the standard and supports and adjust height by each telescopic support legs.
The horizontal location bar is set between described telescopic support legs A and the outermost tubes, and the two ends of described horizontal location bar are connected on telescopic support legs A and the outermost tubes, and the tie point of the two ends of horizontal location bar and telescopic straight-bar and expansion link is equidistant.During the location, be vertical ground, just can guarantee that telescopic straight-bar is on the horizontal line as long as guarantee telescopic support legs A.
In addition, the present invention also expansion link is provided with fastener.By fastener can be easily fixedly rope or tape.
Carry for convenience, assemble, the root of telescopic straight-bar is provided with open slot, is provided with in this open slot and the vertical vertical minor axis of telescopic straight-bar, and the root of described expansion link is provided with coupler body, and described coupler body is hooked on the minor axis; The upper end of telescopic support legs A is provided with fork-shaped and supports, and minor axis is supported in the fork-shaped support.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 be among Fig. 1 A to view.
Fig. 3 is the enlarged diagram of Fig. 1 right part.
In this example, telescopic straight-bar 1 by three successively mutually interior pipe 1-1, middle pipe 1-2, the outer tube 1-3 of socket forms, the root of outer tube 1-3 is provided with open slot 1-4, the vertical vertical minor axis 12 of setting and telescopic straight-bar 1 in open slot 1-4.
Front end at outer tube 1-3 is hinged two groups of telescopic support legs (B) 2, telescopic support legs (C) 3 respectively, and the upper end of telescopic support legs (A) 4 is provided with fork-shaped and supports 4-1, and minor axis 12 is supported on fork-shaped and supports on the 4-1.
On telescopic support legs (A) 4, also be hinged horizontal location bar 5, on outer tube 1-3, offer a groove 6, and the hinge contact that makes groove 6 and horizontal location bar 5 equates to the distance in minor axis 12 axle center respectively, during use, the free end of horizontal location bar 5 inserted in the groove 6.
Interior pipe 7-1, middle pipe 7-2, the outer tube 7-3 of socket form expansion link 7 mutually successively by three.The root of outer tube 7-3 is provided with coupler body 7-4, and coupler body 7-4 is hooked on the minor axis 12.A fixedly fastener 9 of rope or tape is set on outer tube 7-3.Fix an annular threading device 8 at the interior pipe 7-1 of expansion link 7, rope 10 is set in the threading device 8, and an end of rope 10 connects hypophysis 11, and the other end can be fixed on the fastener 9.