CN107907099A - A kind of technical levelling Novel box staff - Google Patents

Abstract

The invention discloses a kind of technical levelling Novel box staff, if including the Sopwith staff telescopic joint that is set with successively of dried layer, the Sopwith staff telescopic joint upper end is with round and elastic buckle one and round and elastic buckle two；The Sopwith staff telescopic joint lower end opens up corresponding circular bayonet one and circular bayonet two；The Sopwith staff telescopic joint both sides open up trapezoidal strip-shaped clamp groove.It is an advantage of the invention that：Easy to use, securely and reliably, simple in structure, application range is vast；Worked at the same time using trapezoidal strip notch and two round and elastic buckles, it is ensured that Sopwith staff is not rocked, do not bent, the also smoothly measurement under poor light condition while reducing the error in measurement process.

Description

A new type of tower ruler for engineering level survey

technical field

The invention relates to a measuring tool tower ruler, which is an improved device for the existing tower ruler used for construction level measurement, and can stabilize the tower ruler body to avoid measurement errors caused by the shaking of the ruler body. In particular, it relates to a novel tower ruler for engineering leveling survey.

Background technique

At present, the tower rulers widely used in on-site engineering leveling surveys are all 5m long telescopic tower rulers. The bending of the ruler body will cause the error of the leveling measurement to exceed the allowable range, which will directly affect the accuracy of the leveling measurement results, and will have adverse effects on the elevation control of the road or floor, which will seriously lead to uneven roads and floor heights that do not meet the design requirements and other quality issues.

Contents of the invention

The invention aims at the deficiency of the existing products, and provides a novel tower ruler for engineering leveling survey. The technical problem to be solved by this invention is:

A novel tower ruler for engineering level surveying according to the present invention, the tower ruler comprises several layers of tower ruler expansion joints which are sequentially fitted, and the upper end of the tower ruler expansion joint is provided with a circular elastic buckle and a circular elastic buckle 2. The lower end of the tower ruler expansion joint is provided with corresponding circular bayonet one and circular bayonet two; both sides of the tower ruler expansion joint are provided with trapezoidal bar-shaped slots.

Further, the surface of the telescoping section of the tower ruler is covered with a fluorescent agent material, and the ruler surface is engraved with corresponding scales, which will not affect the measurement under dim light conditions.

Further, the strip-shaped slots are designed in a trapezoidal shape, stretched to form strip-shaped buckles and restrict each other, and the relative displacement is smaller. After the tower ruler is stretched, the body does not shake or bend, and it is more stable.

The beneficial effects of the present invention are: (1) reasonable structure, easy to manufacture, and low cost; (2) strong practicability, wide application range, safe and reliable; Each section of the ruler body is interlocked to ensure that each section of the ruler body is firmly connected, to ensure that the tower ruler does not shake or bend, and to reduce the error in the measurement process.

Description of drawings

Fig. 1 is a three-dimensional view of the tower ruler of the present invention;

Fig. 2 is the front elevation view of the telescoping joint of the tower ruler of the present invention;

Fig. 3 is a side elevational view of the telescoping joint of the tower ruler of the present invention;

Fig. 4 is a sectional view of the telescoping joint of the tower ruler of the present invention.

In the figure: round elastic buckle 1, round elastic buckle 2 2, round bayonet 1 3, round bayonet 2 4, strip buckle 5, strip slot 6, tower ruler expansion joint 7 .

Detailed ways

The present invention will be further described below in conjunction with embodiment.

A new type of tower ruler for engineering level surveying according to the present invention mainly includes several layers of tower ruler expansion joints 7 that are sequentially fitted, and the upper end of the tower ruler expansion joint 7 is equipped with a circular elastic buckle 1 and a circular elastic buckle 2 2. The lower end of the tower ruler expansion joint 7 is provided with a corresponding circular bayonet 1 3 and a circular bayonet 2 4; the two sides of the tower ruler expansion joint 7 are provided with trapezoidal bar-shaped slots 6 .

When the tower ruler expansion joint 7 was pulled out, the tower ruler expansion joint 7 was pulled out sequentially with the bar-shaped card slot 6, and when the tower ruler expansion joint 7 was pulled to the limited position, the circular elastic buckle-1 and the circular elastic buckle Two 2 pops up automatically, because the upper circular bayonet 1 3 is larger than the lower circular bayonet 2 4, the two circular elastic buckles are pulled until there are corresponding circular bayonet 1 3 and circular bayonet 2 4 It will pop up automatically, so it can limit the up and down movement of each expansion joint, and because there are 2 elastic buckles, it can limit the left and right shaking and bending of the tower ruler; , and become a trapezoid, so that the connection between the tower ruler expansion joints 7 remains stable, so that the tower ruler can not shake and bend back and forth. Therefore, the tower ruler can limit the relative displacement between the expansion joints through 2 circular elastic buckles and 2 strip buckles on the side wall of the expansion joint, so as to ensure that the ruler body does not shake or bend.

When the tower ruler is put away, press the circular elastic buckle one 1 and the circular elastic buckle two 2, and each tower ruler telescopic joint 7 returns to its position in turn along the strip-shaped slot 6, and the strip-shaped buckles 5 on both sides are connected with the strip-shaped The card slots 6 are engaged with each other, and the circular elastic buckle one 1 and the circular elastic buckle two 2 are all shrunk in the telescoping joint 7 of the tower ruler.

The surface of the telescoping section 7 of the tower ruler is covered with a fluorescent agent material, and the ruler surface is engraved with a corresponding scale, which does not affect the measurement under low-light conditions.

A new type of tower ruler for engineering leveling survey of the present invention adopts a trapezoidal strip slot structure and two circular elastic buckles to work at the same time, ensuring that the tower ruler does not shake or bend, and reduces the error in the measurement process at the same time It can also be measured smoothly under low-light conditions.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the content of the description of the present invention, or directly or indirectly used in other related technical fields, shall be The same reasoning is included in the patent protection scope of the present invention.

Claims (3)

1. a kind of technical levelling Novel box staff, it is characterized in that, if the Sopwith staff includes the Sopwith staff that dried layer is set with successively and stretches Casing coupling（7）, the Sopwith staff telescopic joint（7）Upper end is with round and elastic buckle one（1）With round and elastic buckle two（2）；The tower Ruler telescopic joint（7）Lower end opens up corresponding circular bayonet one（3）With circular bayonet two（4）；The Sopwith staff telescopic joint（7）Two Side opens up trapezoidal strip-shaped clamp groove（6）.

2. a kind of technical levelling Novel box staff according to claim 1, it is characterized in that, the Sopwith staff telescopic joint （7）Surface covers phosphor materials, and corresponding scale is carved with ruler face.

3. a kind of technical levelling Novel box staff according to claim 1, it is characterized in that, the strip-shaped clamp groove（6） In echelon, stretching forms strip buckle for design（5）And mutually limit.