CN212565161U - Ruler foot stool supporting leg convenient to operate - Google Patents

Abstract

The utility model discloses a scale foot rest landing leg convenient to operation of reliable and stable, being convenient for operation comprises lath (1) and sleeve pipe (2) that the cover just can relatively lath (1) remove outside lath (1), and vertical arrangement has a plurality of holes (3) on lath (1), sleeve pipe (2) upper end side is equipped with recess (4), but has lateral shifting's according to briquetting (5) in recess (4), recess (4) bottom and according to being fixed with horizontal tension spring (6) between briquetting (5), be equipped with lath through-hole (7) on according to briquetting (5), be equipped with card post (8) that match with hole (3) in one side that lath through-hole (7) are located horizontal tension spring (6).

Description

Ruler foot stool supporting leg convenient to operate

Technical Field

The utility model relates to a measure auxiliary device, especially a scale foot rest landing leg reliable and stable, the operation of being convenient for.

Background

During geodetic surveying and engineering surveying, a surveying staff (a leveling staff, a total station reflection prism centering rod, a satellite positioning survey centering rod and the like) needs to be erected on a surveying mark point to keep vertical and face a surveying device such as a level, so that surveying can be performed, and the vertical state of the staff (rod) and the deflection angle facing the level directly influence the surveying precision and reliability. The base of the traditional measuring foot rest (tripod) is flat and belongs to a tripod head type foot rest, and the traditional measuring foot rest cannot be applied to an upright measuring scale, so that a measurer needs to carry out hand operation, and the measurer needs to observe whether bubbles of a level on a scale (rod) are centered or not and enable the measuring scale to be in a vertical state by hand, so that time and labor are wasted, the accuracy and the stability of the measuring scale in the vertical state are difficult to ensure, and the measuring accuracy is reduced. In order to solve the above problems, chinese patent No. 201220373858.9 discloses a "collet-type measuring foot stool", which mainly contributes to changing the base of the conventional foot stool from a flat plate shape (pan-tilt structure) to an annular shape (collet-type structure), and provides a special measuring foot stool for a measuring scale for the first time, thereby improving the vertical accuracy of the measuring scale. Chinese patent No. 201310022381.9 discloses a "clasping type measuring foot rest", which is further improved by adopting orthogonal decomposition adjustment principle, so as to accelerate the adjustment speed of the vertical state of the scale. Chinese patent No. 201610159164.8 discloses a "measuring foot stool capable of accurately adjusting the angle of a staff", which further solves the problems of horizontal rotation and aiming orientation after the staff is straightened. No matter what kind of foot rest all is equipped with the flexible landing leg of bushing type, needs surveyor to observe the spirit level bubble on scale (pole) with eyes, and the inside and outside pipe relative movement of control respectively carries out length adjustment simultaneously both hands, and when the spirit level bubble was placed in the middle, the screw thread jackscrew on the outer tube was arranged in to the locking, relies on the frictional force between screw thread jackscrew and the inner tube to realize inside and outside pipe relatively fixed. The operation is time-consuming and labor-consuming, the rapid leveling is difficult, and the relative sliding of the inner sleeve and the outer sleeve caused by the looseness of the jackscrew is easy to occur, so that the phenomenon that the staff (rod) deviates from the vertical state and even falls is caused.

Disclosure of Invention

The utility model provides a scale foot rest landing leg which is stable, reliable and convenient to operate, aiming at solving the technical problem existing in the prior art.

The technical solution of the utility model is that: the utility model provides a scale foot rest landing leg convenient to operation comprises lath and the sleeve pipe that overlaps outside the lath and can move relative to the lath, and vertical range has a plurality of holes on the lath, the sleeve pipe upper end side is equipped with the recess, has lateral shifting's according to the briquetting in the recess, be fixed with horizontal tension spring between recess bottom and the according to the briquetting, be equipped with the lath through-hole according to the briquetting, be equipped with the card post that matches with the hole in one side that the lath through-hole is located horizontal tension spring.

The utility model discloses a structure of outer tube is inserted to foraminiferous lath, and constitutes stable self-lock device by pressing briquetting, card post and spring, has both made things convenient for the flexible regulation operation of landing leg and has ensured the reliable and stable of locking back landing leg again, has improved leveling's work efficiency and accuracy.

Drawings

Fig. 1 is a usage state diagram of the embodiment of the present invention.

Fig. 2, 3, 4 and 5 are schematic structural diagrams of embodiments of the present invention.

Detailed Description

As shown in fig. 2, 3, 4, 5: the adjustable pipe-type heat exchanger is composed of a batten 1 and a sleeve 2 which is sleeved outside the batten 1 and can move relative to the batten 1, a plurality of holes 3 with tight intervals are vertically arranged on the batten 1, and the intervals and the diameters of the holes 3 meet the requirements of length adjustment precision. The side surface of the upper end of the sleeve 2 is provided with a groove 4, a transversely movable pressing block 5 is arranged in the groove 4, and the pressing block 5 and the groove 4 can be connected by adopting a slide rail and other connection modes. A transverse tension spring 6 is fixed between the bottom of the groove 4 and the pressing block 5, a slat through hole 7 is arranged on the pressing block 5, a hole through which the slat 1 passes is formed, and a clamping column 8 matched with the hole 3 is arranged on one side, located on the transverse tension spring 6, of the slat through hole 7.

The operation process is shown in fig. 1, a measuring staff (rod) 9 is arranged, a level 10 is fixedly connected to the measuring staff (rod), a foot rest base 11 is connected to the middle lower portion of the measuring staff (rod) 9, and the top end of the batten 1 is rotatably connected with the foot rest base 11. A surveyor presses the pressing block 5 by hand to move the pressing block into the groove 4 while observing bubbles of the level 10, and at the moment, the clamping column 8 is separated from the hole 3 of the batten 1, so that the batten 1 is convenient to adjust to move up and down in the sleeve 2. When the bubble of the level 10 is centered, the surveyor releases the press blocks 1-5 and the snap studs 8 engage in the holes 3 of the blade 1 under the action of the transverse tension springs 1-6, securing the blade 1 relative to the sleeve 2.

Claims (1)

1. The utility model provides a scale foot rest landing leg convenient to operation which characterized in that: the novel wood veneer gluing machine is characterized by comprising a batten (1) and a sleeve (2) which is sleeved outside the batten (1) and can move relative to the batten (1), a plurality of holes (3) are vertically arranged on the batten (1), a groove (4) is formed in the side face of the upper end of the sleeve (2), a pressing block (5) capable of moving transversely is arranged in the groove (4), a transverse tension spring (6) is fixed between the bottom of the groove (4) and the pressing block (5), a batten through hole (7) is formed in the pressing block (5), and a clamping column (8) matched with the hole (3) is arranged on one side, located on the transverse tension spring (6), of the batten through hole (7).

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