CN204479069U - Mapping levelling staff balance and stability F type foot rest - Google Patents

Abstract

The utility model relates to a kind of mapping levelling staff balance and stability F type foot rest, comprises reversed F-typed support, supporting leg and terminal pad; Described supporting leg and reversed F-typed support circumference are distributed in around terminal pad; Described supporting leg and terminal pad hinged, described reversed F-typed support is fixedly connected with terminal pad; The horizontal lever front end of described reversed F-typed support is equipped with the fixed frame can fixing levelling staff, and fixed frame is provided with fixed knob, and this foot rest structure is simple and easy, simple to operate, easy to use; With low cost, be easy to promote; The balance and stability surveying and drawing levelling staff can be ensured, can error in leveling be effectively reduced.

Description

Balanced and stable F-type tripod for surveying and mapping leveling staff

technical field

The utility model relates to a balanced and stable F-shaped tripod for a surveying and mapping leveling scale, which belongs to the field of surveying and mapping equipment.

Background technique

In the leveling operation, in order to obtain high-precision leveling observation values, it is necessary to ensure the strict centering of the leveling bubble on the surveying and mapping leveling staff and the balance and stability of the leveling staff during long-term observation. At present, when surveyors and mappers are performing leveling operations, the surveying and mapping leveling rod needs to be adjusted by the ruler to keep it vertical. Since the working environment of the leveling survey is outdoors, in bad weather conditions, due to the blowing of the wind and human factors, The leveling staff often shakes, causing large leveling measurement errors, and at the same time, the ruler needs to spend a lot of energy to stabilize the verticality of the staff. The current leveling operation generally requires two rulers. This working method not only causes a great waste of manpower, but also increases the working cost.

Utility model content

In order to solve the above problems, the utility model provides a balanced and stable F-type tripod for the surveying and mapping leveling rod, which can realize the balance and stability of the surveying and mapping leveling rod and the strict centering of the level bubbles, effectively reduce the error caused by the shaking of the surveying and mapping leveling rod, and improve The accuracy of leveling.

The utility model is achieved through the following technical solutions: a balanced and stable F-shaped tripod for surveying and mapping leveling scales, including inverted F-shaped brackets, legs and connecting plates; around; the legs are hinged with the connecting plate, and the inverted F-shaped bracket is fixedly connected with the connecting plate; the front end of the transverse rod body of the inverted F-shaped bracket is provided with a fixed frame capable of fixing the level scale, and the fixed frame is provided with a fixed frame. knob.

The supporting leg is a telescopic structure, including a fixed rod and a telescopic rod, and a fastening knob is provided at the joint between the telescopic rod and the fixed rod.

There are at least two legs.

The bottom end of the telescopic rod is tapered.

The lower part of the telescopic rod is provided with an auxiliary pedal for inserting the legs into the ground for convenience.

The fixed rod is connected with the connection plate by a rotary joint.

The fixed frame is in the shape of a rectangle with one side missing, its bottom is welded to an inverted F-shaped bracket, and at least one side is provided with a threaded hole, and the fixed knob is rotatably connected to the threaded hole.

The beneficial effects of the utility model are: a balanced and stable F-type tripod for surveying and mapping leveling scale, which has simple structure, simple operation and convenient use; low cost and easy to popularize; Measurement error.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Accompanying drawing 1 is the structural representation of the balanced and stable F-type tripod of surveying and mapping leveling scale.

Accompanying drawing 2 is the top view of surveying and mapping leveling scale balance stable F type tripod.

In the figure, 1. Inverted F-shaped bracket, 2. Connecting plate, 3. Fixed rod, 4. Fastening knob, 5. Telescopic rod, 6. Auxiliary pedal, 7. Fixed frame, 8. Fixed knob, 9. Leveling scale .

Detailed ways

In the accompanying drawings, a balanced and stable F-shaped tripod for surveying and mapping leveling rods includes an inverted F-shaped bracket 1, legs and a connection plate 2; Described supporting leg is hinged with connecting plate 2, and described inverted F-shaped bracket 1 is fixedly connected with connecting plate 2; 7 is provided with fixed knob 8.

The supporting leg is a telescopic structure, including a fixed rod 3 and a telescopic rod 5 , and a fastening knob 4 is provided at the connection between the telescopic rod 5 and the fixed rod 3 .

There are at least two legs.

The bottom end of the telescopic rod 5 is tapered.

The bottom of the telescopic rod 5 is provided with an auxiliary pedal 6 that is convenient for inserting the legs into the ground with the feet.

The fixed rod 3 is connected with the connection plate 2 by a rotary joint.

The fixed frame 7 is in the shape of a rectangle with one side missing, its bottom is welded to the inverted F-shaped bracket 1, and at least one side thereof is provided with a threaded hole, and the fixed knob 8 is connected to the threaded hole in rotation.

When in use, loosen the fastening knob 4, adjust the telescopic rod 5 to an appropriate length, and then tighten the fastening knob 4 to fix the telescopic rod 5 and the fixed rod 3; loosen the level gauge fixing knob 8, and put the level gauge 9 into the fixed frame 7. Tighten the fixing knob 8; adjust the outrigger so that the outrigger and the vertical direction open at a certain angle, put the leveling rod 9 on the leveling point, step on the auxiliary pedal 6, insert the end of the telescopic rod 5 into the soil, and loosen it. Tighten the knobs of the telescopic rods 5 to adjust the extension lengths of the two telescopic rods 5 until the level bubbles on the leveling rod 9 are in the center. After the measurement is finished, unclamp the level gauge fixing knob 8, take out the level gauge 9, loosen the fastening knob 4, shrink the telescopic rod 5 to the shortest length and then tighten the fastening knob 4 to bring the legs together.

Claims (7)

1. a mapping levelling staff balance and stability F type foot rest, is characterized in that, comprise reversed F-typed support, supporting leg and terminal pad; Described supporting leg and reversed F-typed support circumference are distributed in around terminal pad; Described supporting leg and terminal pad hinged, described reversed F-typed support is fixedly connected with terminal pad; The horizontal lever front end of described reversed F-typed support is equipped with the fixed frame can fixing levelling staff, and fixed frame is provided with fixed knob.

2. one mapping levelling staff balance and stability F type foot rest according to claim 1, it is characterized in that, described supporting leg is Collapsible structure, comprises fixed bar and expansion link, and the junction of described expansion link and fixed bar is provided with tightening knob.

3. one mapping levelling staff balance and stability F type foot rest according to claim 1, it is characterized in that, described supporting leg at least arranges two.

4. one mapping levelling staff balance and stability F type foot rest according to claim 2, it is characterized in that, the bottom of described expansion link is sharp cone distal.

5. one mapping levelling staff balance and stability F type foot rest according to claim 2, it is characterized in that, described expansion link bottom is provided with the accessory pedal that supporting leg is inserted underground by convenience pin.

6. one mapping levelling staff balance and stability F type foot rest according to claim 2, it is characterized in that, described fixed bar is connected with terminal pad by rotary joint.

7. one mapping levelling staff balance and stability F type foot rest according to claim 1, it is characterized in that, described fixed frame is rectangle shape less, its base and reversed F-typed support welding, its at least one side is provided with threaded hole, and described fixed knob is rotatably connected with threaded hole.