Simple slope construction lofting measuring instrument
Technical Field
The utility model relates to a simple slope construction lofting measuring instrument. The method is suitable for the field of engineering measurement.
Background
In the river course treatment process, in order to guarantee side slope stability, reduce soil erosion and water loss, avoid side slope unstability and destruction caused by water flow scouring of side slope, need to protect the current side slope. The existing slope needs to be trimmed before the protection work starts, so that the slope meets the design requirement and the flatness required by construction. The slope is required to be lofted according to the slope required by the drawing before being trimmed, and the trimmed slope is required to be rechecked in the trimming process of the slope.
The current common measuring (lofting) instruments comprise a level gauge, a theodolite, a total station and a GPS, are singly used or matched for use in the lofting process, have higher requirements on the professional level of operators, and have long time, low efficiency and high cost for lofting and process control by using the above instruments.
Disclosure of Invention
The utility model aims to solve the technical problems that: aiming at the problems, the simple slope construction lofting measuring instrument is simple in structure and convenient to use, so that the working efficiency is improved, the cost is reduced, and the construction quality is ensured.
The technical scheme adopted by the utility model is as follows: a simple slope construction lofting measuring instrument, comprising:
a base;
the horizontal rod is arranged on the base and can adjust levelness;
one end of the slope length measuring rod is rotatably arranged at the end part of the horizontal rod through a rotating shaft;
an angle dial, which is fixed on the horizontal rod and is in a sector shape as a whole, and the circle center position of the dial coincides with the rotating shaft;
the scale pointer is tightly attached to the surface of the angle dial plate and is perpendicular to the slope length measuring rod and the rotating shaft.
Two buckles capable of moving axially along the horizontal rod are arranged below the horizontal rod, the base is clamped by the two buckles in a matched mode, and the horizontal rod is fixedly connected with the base.
The horizontal rod is provided with a plurality of bolt holes vertically penetrating through the horizontal rod, bolts are connected in the bolt holes in a threaded mode, and the lower ends of the bolts are supported on the base.
The horizontal rod is provided with a level pipe.
The slope length measuring rod is a telescopic rod consisting of a large guide rod and a small guide rod coaxially inserted into the large guide rod;
one end of the large guide rod is vertically connected with the rotating shaft, the other end of the large guide rod is inserted with the small guide rod, a scale mark I which is arranged along the axis of the large guide rod is formed on the surface of the large guide rod, and the numerical value of the scale mark I gradually increases from the rotating shaft to the small guide rod end;
the surface of the small guide rod is provided with scale marks II which are arranged along the axis of the small guide rod, and the scale marks on the scale marks II gradually increase in value from the end far away from the large guide rod to the end close to the guide rod.
And a slope ratio angle comparison table is adhered to the surface of the slope length measuring rod.
The beneficial effects of the utility model are as follows: according to the utility model, the levelness of the horizontal rod can be adjusted through the cooperation of the base and the horizontal rod, the included angle between the slope length measuring rod and the horizontal rod can be adjusted through the rotating shaft, the included angle value between the slope length measuring rod and the horizontal rod can be measured through the cooperation of the angle dial and the scale pointer, and the slope length is measured through the slope length measuring rod.
Compared with the traditional measuring and lofting instrument, the utility model has the advantages of simple operation, convenient use and low cost, can be used by common constructors after simple intersection, and can effectively improve the construction efficiency and reduce the labor cost, the equipment cost and the mechanical cost. The utility model has convenient operation, strong adaptability, large improvement space and wide popularization and application prospect.
Drawings
Fig. 1 is a perspective view of an embodiment.
Fig. 2 is a schematic structural diagram of an embodiment.
Fig. 3 is a schematic plan view of an embodiment.
Fig. 4 is a partial detail of an embodiment.
In the figure: 1. a base; 2. a buckle; 3. a horizontal bar; 4. a bolt; 5. a level pipe; 6. an angle dial; 7. a scale pointer; 8. slope ratio angle comparison table; 9. and a slope length measuring rod.
Detailed Description
As shown in fig. 1 to 3, the embodiment is a simple slope construction lofting measuring instrument, which comprises a base, a horizontal rod, a slope length measuring rod, an angle dial and the like.
In this example, the base may be poured foundation concrete or precast blocks, and is used for fixing a horizontal rod.
In this embodiment, the level pipe is installed on the upper surface of the horizontal rod, two buckles capable of moving along the axis direction of the horizontal rod are arranged at the bottom of the horizontal rod, two vertical bolt holes penetrating through the horizontal rod are formed in the horizontal rod and between the two buckles, and bolts are connected in the bolt holes in a threaded mode. In the embodiment, the horizontal rod is clamped on the lower base through two buckles at the bottom, the bolt on the horizontal rod is adjusted to enable the lower end of the bolt to be supported on the lower base, and the levelness of the horizontal rod is adjusted until the horizontal rod is level under the supporting effect of the bolt.
In the example, the slope length measuring rod is a telescopic rod which is composed of a large guide rod and a small guide rod coaxially inserted into one end of the large guide rod, wherein one end of the large guide rod is rotatably connected with one end of the horizontal rod through a rotating shaft, and the other end of the large guide rod is inserted with the small guide rod. The surface of the large guide rod is provided with a scale mark I arranged along the axis of the large guide rod, and the scale on the scale mark I gradually increases from the rotating shaft to the small guide rod end; the surface of the small guide rod is provided with scale marks II which are arranged along the axis of the small guide rod, and the scale marks on the scale marks II gradually increase in value from the end far away from the large guide rod to the end close to the guide rod.
In the embodiment, a fan-shaped angle dial is fixed at the end part of the horizontal rod, and the circle center position of the angle dial coincides with a rotating shaft between the horizontal rod and the slope length measuring rod. The angle dial is provided with a scale pointer which is tightly attached to the dial surface of the angle dial, and the scale pointer is perpendicular to the length measuring rod and the rotating shaft and corresponds to the position of the rotating shaft.
The working principle of this embodiment is as follows:
when the simple slope construction lofting measuring instrument is used, slope ratios related in a drawing are firstly converted into corresponding angles one by one and marked in a slope ratio angle comparison table;
then fixing the horizontal rod in the base through two buckles at the bottom, centering air bubbles in the level pipe in the horizontal rod through two vertical adjusting bolts, and adjusting the horizontal rod to be in a horizontal state (at the moment, the rotating shaft is horizontal and vertical to the horizontal rod);
after the air bubble is centered, extending the slope length measuring rod to a corresponding length according to the length of the current slope;
and rotating the slope length measuring rod around the rotating shaft until the slope length measuring rod is closely attached to the slope surface, simultaneously observing the corresponding reading of the scale pointer at the bottom on the angle dial, and if the reading is consistent with the excavation slope required by the drawing, finishing marking lofting.
And (3) checking whether the excavation slope ratio of the slope meets the drawing requirement in a same way, attaching the vertical support rod to the slope according to the steps, and judging whether the excavation slope meets the drawing requirement according to the reading of the pointer on the dial.
The above embodiments are only for illustrating the inventive concept of the present utility model and not for limiting the protection of the claims of the present utility model, and all the insubstantial modifications of the present utility model using the concept shall fall within the protection scope of the present utility model.