CN212005028U - Convenient centering and leveling measurement tripod - Google Patents

Abstract

The utility model discloses a convenient centering, leveling and measuring tripod, which comprises a mounting plate provided with a level, an observation hole is opened in the center of the mounting plate, and three telescopic support rods are evenly hinged in the circumferential direction of the mounting plate. The center of the bottom of the mounting plate is provided with a telescopic centering rod perpendicular to the mounting disk, and the centering rod can move relative to the mounting disk so that the observation hole can be exposed toward the ground. The utility model is beneficial to the rapid centering and leveling of the measuring instrument, and the centering rod and the mounting plate on which the measuring instrument is installed are located in the support center, which is not easy to fall off, and improves the erection stability of the tripod. In addition, the centering rod can be moved to be exposed toward the ground. out the viewing hole on the mounting plate to allow the measuring instrument to be centered.

Description

Convenient centering and leveling measurement tripod

technical field

The utility model relates to the field of measuring tripods, in particular to a convenient centering and leveling measuring tripod.

Background technique

The measuring tripod is an auxiliary tool in the surveying and mapping project. The function of the tripod is to keep the theodolite or total station stable during the measurement process to ensure the accuracy of the measurement. The traditional measuring tripod is composed of three legs and a chassis connected to the upper end of the legs. There is an observation hole in the center of the chassis, which is used for the measuring instrument to observe the ground station. Then fix the measuring instrument on the chassis, and then carry out centering and leveling. The centering and leveling steps of the traditional measuring tripod include: rough centering, fixing one leg of the tripod, moving two legs, so that the center of the optical center of the measuring instrument is aligned with the ground station; rough leveling, lifting the tripod to make the chassis circular level bubble Centering; fine-leveling, adjust the instrument foot screw to center the bubble of the instrument vial; fine-centering, translate the instrument on the chassis to make the center of the optical plummet of the measuring instrument align with the ground station; check the leveling and centering, and repeat the fine-tuning Smooth and fine alignment operations until the alignment and leveling requirements are met.

The centering and leveling steps of the instrument installed by the traditional measuring tripod are cumbersome and the work efficiency is low. Therefore, Chinese patent document CN201620187152.1 discloses a gravity-type engineering surveying centering and leveling tripod, which includes a tray, a measuring instrument, a centering foot rod, A pair of side legs and a pair of levelers; the measuring instrument is fixedly installed in the top center of the tray; the upper end of the centering leg is fixedly connected to the bottom center of the tray, the centering leg is coaxial with the tray, and the centering leg is The lower end is pointed, and is aligned with the tip of the centering foot rod, the center of the tray and the center of the measuring instrument; the upper ends of a pair of side foot rods are symmetrically connected to the bottom of the tray, and a pair of levelers are respectively arranged on the bottom of the tray. On the upper end surface, the centering foot rod and a pair of side foot rods are respectively composed of the upper section of the foot rod, the lower section of the foot rod, the foot rod fixing knob and the foot rod fine-tuning knob. . The utility model can achieve rapid and rough centering through the centering foot rod, but the erection stability is insufficient, it is easy to deviate to the other side where the side foot rod is not provided, and the centering observation port of the lower part of the foot rod of the centering foot rod is not It is convenient for the precise observation and adjustment of the measuring instrument located at the upper tray of the center foot rod.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems of the prior art, and provides a convenient centering and leveling measuring tripod, which is conducive to the rapid centering and leveling of the measuring instrument, and the centering rod and the mounting plate for installing the measuring instrument are located in The support center is not easy to fall off, which improves the erection stability of the tripod. In addition, the centering rod can be moved to expose the observation hole on the mounting plate toward the ground, so that the measuring instrument can be centered.

The purpose of the present utility model is mainly realized through the following technical solutions:

The convenient centering and leveling measurement tripod includes a mounting plate with a level, an observation hole is opened in the center of the mounting plate, and three retractable support rods are evenly hinged in the circumferential direction of the mounting plate, and the center of the bottom of the mounting plate is provided with A retractable centering rod perpendicular to the mounting plate, the centering rod can move relative to the mounting plate so that the viewing hole can be exposed toward the ground.

Preferably, the top surface of the centering rod is provided with a slide bar that passes through the center of the circle, the two ends of the slide bar are respectively provided with slide blocks facing the mounting plate, and the two sides of the observation hole at the bottom of the mounting plate are respectively provided with slide grooves perpendicular to the slide bar, The connecting line between the ends of the two sliding grooves close to the observation hole passes through the center of the circle of the observation hole, and the two sliding blocks are respectively accommodated in the two sliding grooves and can move along the sliding grooves.

Preferably, both the centering rod and the support rod include a screw rod, a threaded sleeve and a footing sleeve, the threaded sleeve and the footing sleeve are rotatably connected, and one end of the screw rod extends into the footing sleeve through the threaded sleeve The screw can move relative to the foot sleeve, and the screw is threadedly connected with the inner wall of the threaded sleeve; the other end of the screw of the support rod is hinged with the mounting plate, and the other end of the screw of the centering rod is connected with the slider.

To sum up, the utility model has the following beneficial effects: by directly standing the centering rod vertically on the measuring station, and then installing the measuring instrument on the center of the mounting plate, the rapid rough centering and leveling of the measuring instrument is realized, which is beneficial to Improve centering and leveling efficiency. Compared with the prior art, the centering rod and the mounting plate for mounting the measuring instrument of the present invention are located in the support center, the erection structure is more stable, and it is not easy to fall off. In addition, the centering rod can be moved to expose the mounting plate towards the ground to expose the viewing hole for accurate centering of the measuring instrument.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the present application, and do not constitute a limitation to the embodiments of the present invention. In the attached image:

FIG. 1 is a schematic structural diagram of a specific embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a specific embodiment of the present utility model after the centering rod is removed.

FIG. 3 is a bottom view of a mounting plate according to a specific embodiment of the present invention.

In the picture: 1-installation plate, 2-centering rod, 3-support rod, 4-slide bar, 5-chute, 6-threaded sleeve, 7-foot sleeve, 8-screw, 9-observation hole .

Detailed ways

Several embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the purpose of simplifying the drawings, some well-known structures and components will be shown in a simple schematic manner in the drawings.

It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, rear... are only used to explain the relative positional relationship between the various components in a specific posture as shown in the accompanying drawings , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example:

The convenient centering and leveling measurement tripod, as shown in Figure 1 and Figure 2, includes a mounting plate 1 with a level, an observation hole 9 is opened in the center of the mounting plate 1, and the mounting plate 1 is evenly hinged in the circumferential direction with a retractable There are three support rods 3. The center of the bottom of the mounting plate 1 is provided with a telescopic centering rod 2 perpendicular to the mounting plate 1. The centering rod 2 can move relative to the mounting plate 1 so that the observation hole 9 can be exposed toward the ground.

The centering and leveling process of the measuring instrument is as follows: make the centering rod 2 stand on the ground station, stretch and adjust the centering rod 2 so that the installation plate 1 is at an appropriate height and level (judging by whether the bubble of the level on the installation plate 1 is centered or not) level), complete the rough centering and leveling, then unfold and telescopically adjust the support rod 3 and fix it, so that the tripod can be erected stably. After the tripod is firmly set up, install the measuring instrument (theodolite, total station, etc.) to the center of the mounting plate 1, and then adjust the foot screw of the measuring instrument to adjust the measuring instrument to the fine level, and complete the fine leveling of the measuring instrument. Then shorten the centering rod 2 and move it relative to the mounting plate 1, so that the mounting plate 1 faces the ground and exposes the observation hole 9, which is convenient to check whether the center of the optical plummet of the measuring instrument is aligned with the bottom station. Translate the measuring instrument on the mounting plate 1 so that it is finely centered.

Since the centering rod 2 is located in the center of the mounting plate 1 and is perpendicular to the mounting plate 1, the centering rod 2 is directly erected on the ground station, and then the support rod 3 is adjusted and fixed, so that the mounting plate 1 can be centered After leveling, and then fix the measuring instrument on the center of the mounting plate 1, the rapid rough centering and leveling of the measuring instrument can be realized, which is beneficial to improve the overall centering and leveling efficiency. Compared with the prior art, the centering rod 2 and the mounting plate 1 on which the measuring instrument is installed are located in the support center of the present invention, and the erection structure is more stable and not easy to fall off. Furthermore, the centering rod 2 can be moved so that the mounting plate 1 exposes the viewing hole 9 towards the ground for accurate centering of the measuring instrument.

Optionally, the movable way of the centering rod 2 is: as shown in FIG. 3 , the top surface of the centering rod 2 is provided with a slider 4 passing through its center, and the two ends of the slider 4 are respectively provided with sliders towards the mounting plate 1. , the two sides of the observation hole 9 at the bottom of the mounting plate 1 are respectively provided with chute 5 perpendicular to the slider 4, and the connecting line between the ends of the two chute 5 close to the observation hole 9 passes through the center of the observation hole 9, and the two sliding The blocks are respectively accommodated in the two chutes 5 and can move along the chutes 5 .

By moving the slider in the chute 5 , the centering rod 2 can be driven to move relative to the mounting plate 1 . The slider 4 passes through the center of the top surface of the centering rod 3, and the connecting line between the ends of the two chute 5 close to the observation hole 9 passes through the center of the observation hole 9, so that the slider moves to the position where the chute 5 is close to the observation hole 9. The centering rod 2 is located in the center of the mounting plate 1 when it is at the end, so that the centering rod 2 can be moved and positioned to the center of the mounting plate 1 .

Optionally, the telescopic manner of the centering rod 2 and the support rod 3 is: as shown in FIG. 1 , the centering rod 2 and the support rod 3 both include a screw 8, a threaded sleeve 6 and a foot sleeve 7, and a threaded sleeve The barrel 6 is rotatably connected with the foot sleeve 7, one end of the screw 8 extends into the foot sleeve 7 through the threaded sleeve 6, the screw 8 can move relative to the foot sleeve 7, the screw 8 and the inner wall of the threaded sleeve 6 Threaded connection; the other end of the screw 8 of the support rod 3 is hinged with the mounting plate 1 , and the other end of the screw 8 of the centering rod 2 is connected with the slide bar 4 . By rotating the corresponding threaded sleeve 6, the corresponding screw 8, the corresponding threaded sleeve 6 and the foot sleeve 7 can be moved relative to each other, so that the corresponding centering rod 2 and the supporting rod 3 can be telescopic.

The parts not mentioned in the above manner can be realized by adopting or learning from the existing technology.

The above content is a further detailed description of the present invention in conjunction with the specific preferred embodiments, and it cannot be considered that the specific embodiments of the present invention are limited to these descriptions. For those of ordinary skill in the technical field of the present invention, other embodiments obtained without departing from the technical solutions of the present invention shall be included in the protection scope of the present invention.

Claims (3)

1. Tripod is measured to portable centering flattening, including mounting disc (1) that is equipped with the spirit level, mounting disc (1) center is opened there is observation hole (9), and mounting disc (1) circumferencial direction is even articulated to be equipped with three bracing piece of telescopic (3), its characterized in that: the center of the bottom of the mounting disc (1) is provided with a telescopic centering rod (2) perpendicular to the mounting disc (1), and the centering rod (2) can move relative to the mounting disc (1) so that the observation hole (9) can be exposed towards the ground.

2. The portable centering leveling measurement tripod of claim 1, wherein: centering rod (2) top surface is equipped with draw runner (4) of its centre of a circle, and draw runner (4) both ends are equipped with the slider towards mounting disc (1) respectively, and mounting disc (1) bottom is observed hole (9) both sides and is equipped with respectively with draw runner (4) vertically spout (5), and the line between the end that two spout (5) are close to observation hole (9) is through the centre of a circle of observing hole (9), and two sliders hold respectively in two spout (5) and can follow spout (5) and remove.

3. The portable centering leveling measurement tripod according to claim 2, wherein: the centering rod (2) and the support rod (3) respectively comprise a screw rod (8), a threaded sleeve (6) and a footing sleeve (7), the threaded sleeve (6) is rotatably connected with the footing sleeve (7), one end of the screw rod (8) penetrates through the threaded sleeve (6) and extends into the footing sleeve (7), the screw rod (8) can move relative to the footing sleeve (7), and the screw rod (8) is in threaded connection with the inner wall of the threaded sleeve (6); the other end of the screw rod (8) of the supporting rod (3) is hinged with the mounting disc (1), and the other end of the screw rod (8) of the centering rod (2) is connected with the sliding strip (4).

Images