Fine-adjustment level tripod

Abstract

The invention discloses a fine-adjustment level tripod. The fine-adjustment level tripod comprises a foot stand, a connecting piece and a connecting end tip, wherein a fine-adjustment mechanism is arranged between the foot stand and the connecting piece and comprises a fine-adjustment coiled pipe and a fine-adjustment guiding pipe; the upper end of the fine-adjustment coiled pipe movably sleeves an outer peripheral wall of an upper connecting head of the connecting end tip; the lower end of the fine-adjustment coiled pipe sleeves the upper end of the fine-adjustment guiding pipe; the fine-adjustment coiled pipe is connected with the fine-adjustment guiding pipe through inner threads and outer threads; a lower connecting head of the connecting end tip is placed in the fine-adjustment guiding pipe; the outer peripheral wall of the lower connecting head is in sliding fit with the inner peripheral wall of the fine-adjustment guiding pipe; a guiding screw is arranged on the fine-adjustment coiled pipe; a guiding annular groove is formed in the outer peripheral wall of the connecting end tip; the head of the guiding screw is inlaid in the guiding annular groove; and when the fine-adjustment coiled pipe rotates, the fine-adjustment guiding pipe drives the foot stand to downwards or upwards move in the axial direction, so that stretching and retracting fine-adjustment on the foot stand is realized. The fine-adjustment level tripod has the advantages of convenience in adjustment, high in accuracy and the like. The fine-adjustment mechanism is simple and compact in structure; and by the fine-adjustment mechanism, a common tripod can be improved and has a fine-adjustment function.

Description

technical field [0001] The invention relates to a tripod, in particular to a fine-tuning level tripod. Background technique [0002] Tripod is a commonly used clamping and supporting platform for various photography, measuring and other instruments. When in use, unfold the tripod, extend the telescopic multi-section tripod (leg tube) to a suitable length, and then fix the measuring equipment on the tripod mounting platform superior. When dealing with uneven supporting ground and clamping equipment, it is usually necessary to loosen the leg locking knob on a certain section of the leg on the tripod, adjust the length of the tripod to extend or retract for a certain length, and visually inspect Or refer to the level configured on the tripod to finally make the tripod level. Alternatively, a fine-tuning device is provided on the tripod, such as a micro-moving lifting tripod disclosed in Chinese Utility Model Patent Specification CN201120366651.4. [0003] The leveling method...

AI Technical Summary

Problems solved by technology

[0003] The leveling method by adjusting the telescopic length of the leg tube is time-consuming and laborious, and the accuracy is difficult to guarantee. It can only meet the rough leveling requirements of ordinary equipment. For high-precision equipment such as surveying and mapping instruments and laser interferometers, this method is difficult to meet its support platform. Extremely high horizontal accuracy requirements; the second method, the fine-tuning device is set in the middle of the tripod, it is difficult to look down at the level and adjust the fine-tuning device at the same time; the adjustment process needs to continuously adjust the fine-tuning devices on the three tripods according to the instructions of the level, and the process is still It is time-consuming, and the tripod is a two-stage telescopic structure, so that the height adjustment range of the tripod is small, and the tripods are arranged in parallel, and the support stability is not good

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