Counterweight type total station centering rod support

Abstract

The utility model relates to a counter weight type total station centering rod support which comprises a centering rod, a connecting plate, an auxiliary supporting rod and two inclined supporting rods, one end of the connecting plate is fixedly connected with the middle of the centering rod, the other end of the connecting plate is fixedly connected with the lower end of the auxiliary supporting rod, and the upper end of the auxiliary supporting rod is rotationally connected with the upper ends of the two inclined supporting rods; the upper end of the hanging rod is rotationally connected with the connecting plate through a pin shaft, and the lower end of the hanging rod is in threaded connection with the top of the balancing weight. According to the utility model, through the counterweight, the wind resistance and the stability of the centering rod during measurement are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering measurement and relates to a centering rod bracket for a counterweight type total station. Background Art

[0002] The total station is a commonly used measuring device in construction engineering, which can complete the measurement of the angle, distance, three-dimensional coordinates and other parameters of the measuring point in one stop. When measuring with the total station, it is necessary to set up a centering rod at the measuring point, support the cone tip at the lower end of the centering rod at the measuring point, install a prism at the upper end of the centering rod, adjust the centering rod to be perpendicular to the horizontal plane, and obtain the coordinates of the measuring point by using the principle that the optical center of the prism is consistent with the plane coordinates of the cone tip at the lower end.

[0003] Existing centering rods include handheld and bracket types. During the measurement process, a handheld centering rod needs to be held by a dedicated person to keep the centering rod vertical, which is not only labor-intensive, but also difficult to keep the centering rod stable for a long time due to human factors, which affects the measurement accuracy.

[0004] The bracket-type centering pole usually includes a centering pole, a connecting plate, an auxiliary support pole and two diagonal support poles. One end of the connecting plate is fixedly connected to the middle of the centering pole, and the other end is fixedly connected to the lower end of the auxiliary support pole. The upper end of the auxiliary support pole is rotatably connected to the upper ends of the two diagonal support poles. The above structure is similar to a tripod. After the centering pole is adjusted to a vertical state, the centering pole can generally be kept stable by the two diagonal support poles. However, since the centering pole and the diagonal support poles are both made of lightweight materials, the centering pole may be blown down by the wind in a windy environment, or when measuring on the roadside, the wind force or vibration generated by the vehicle may also cause the centering pole to be displaced, so manual care is still required. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a centering rod bracket for a counterweight-type total station to increase the stability of the centering rod.

[0006] The technical solution of the utility model is as follows:

[0007] A centering rod bracket for a counterweight-type total station comprises a centering rod, a connecting plate, an auxiliary support rod and two diagonal support rods, wherein one end of the connecting plate is fixedly connected to the middle of the centering rod, and the other end is fixedly connected to the lower end of the auxiliary support rod, and the upper end of the auxiliary support rod is rotatably connected to the upper ends of the two diagonal support rods. The bracket is characterized in that it also comprises a suspension rod and a counterweight block, wherein the upper end of the suspension rod is rotatably connected to the connecting plate via a pin shaft, and the lower end is screwed to the top of the counterweight block.

[0008] The utility model adds a counterweight device to the existing bracket-type centering pole, and increases the wind resistance and stability of the centering pole bracket through the counterweight. Special manual care is not required during measurement, and manpower allocation can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a side structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0010] like Figure 1 As shown, the centering rod bracket of the total station includes a centering rod 1, a connecting plate 2, an auxiliary support rod 3 and two diagonal support rods 4, one end of the connecting plate 2 is fixedly connected to the middle of the centering rod 1, and the other end is fixedly connected to the lower end of the auxiliary support rod 3, and the upper end of the auxiliary support rod 3 is rotatably connected to the upper ends of the two diagonal support rods 4; it also includes a suspension rod 5 and a counterweight block 6, the upper end of the suspension rod 5 is rotatably connected to the connecting plate 2 through a pin shaft, and the lower end of the suspension rod 5 is screwed to the top of the counterweight block 6.

[0011] When measuring, the utility model supports the lower end of the centering rod at the measuring point position, firstly adjusts the centering rod to be vertical to the horizontal plane and keeps the centering rod stable through two oblique support rods, then screws the counterweight block to the lower end of the suspension rod to increase the stability of the centering rod; installs a prism on the top of the centering rod, and the surveyor operates the total station to measure at a distance; after the measurement is completed, removes the counterweight block, and retracts the centering rod and the oblique support rods.

[0012] The weight of the counterweight should be appropriate, generally about 2.5 kg, which is approximately equivalent to the weight of a red brick. If the counterweight is not heavy enough, it will not play a stabilizing role, and if it is too heavy, it will cause the diagonal brace to deform.

Claims

1. A centering rod support for a counterweight total station, comprising a centering rod, a connecting plate, an auxiliary supporting rod and two diagonal supporting rods, wherein one end of the connecting plate is fixedly connected to the middle of the centering rod, and the other end is fixedly connected to the lower end of the auxiliary supporting rod, and the upper end of the auxiliary supporting rod is rotatably connected to the upper ends of the two diagonal supporting rods, characterized in that: It also includes a suspension rod and a counterweight block. The upper end of the suspension rod is rotatably connected to the connecting plate through a pin shaft, and the lower end is screwed to the top of the counterweight block.

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