CN218992807U

CN218992807U - Portable tripod of optical instrument

Info

Publication number: CN218992807U
Application number: CN202220008191.6U
Authority: CN
Inventors: 唐高生; 齐菲; 苏中帅; 王子宇; 孟宪磊; 夏宝东
Original assignee: Beijing No 3 Construction Engineering Co Ltd
Current assignee: Beijing No 3 Construction Engineering Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2023-05-09
Anticipated expiration: 2032-01-05

Abstract

The utility model relates to the field of surveying tools, in particular to a portable tripod of an optical instrument. The tripod comprises a tripod body, wherein the tripod body comprises a central disc and three supporting legs connected to the central disc, a vertically arranged lifting rod is slidably arranged on the central disc, a tray is arranged at the top of the lifting rod through a fine adjustment lifting mechanism, and an interface is arranged on the tray and used for being connected with an optical instrument; the side edge of the lifting rod is vertically provided with a plurality of ratchets, a pawl matched with the ratchets is movably arranged on the central disc, an elastic piece is arranged between the pawl and the central disc to enable the pawl to be abutted against the ratchets, and the pawl is matched with the ratchets to stop the lifting rod from moving downwards; the top of lifter has screw thread portion, fine adjustment elevating system is including rotating the knob of connecting on the tray, have screw and screw thread portion spiro union cooperation on the knob, rotate the knob and let the tray follow lifter up-and-down motion.

Description

Portable tripod of optical instrument

Technical Field

The utility model relates to the field of surveying tools, in particular to a portable tripod of an optical instrument.

Background

Leveling instruments are often used in building construction to calibrate horizontal positions. And in building construction, measurement is different from field mapping, and a large number of shoveling measurements are mainly carried out on horizontal lines with the same height.

The existing tripod for setting the level gauge is a simple tripod, and the tripod is simple in structure and is three supporting legs with adjustable lengths. However, the tripod has troublesome height adjustment process, which is unfavorable for the measurement of the same horizontal line in a large amount in the building construction.

And a more complex universal tripod. The tripod has a complex structure, and is unfavorable for various narrow passages on a construction site. And the use of learning costs are relatively high.

Disclosure of Invention

The utility model relates to a portable tripod of an optical instrument.

The technical problems to be solved are as follows: in the construction, a large number of horizontal lines with the same height are required to be measured, and the existing tripod is difficult to quickly adjust and use.

In order to solve the technical problems, the portable tripod of the optical instrument adopts the following scheme.

A portable tripod for optical instrument comprises a tripod body which comprises a central disk and three supporting legs connected with the central disk,

the center plate is provided with a vertically arranged lifting rod in a sliding manner, the top of the lifting rod is provided with a tray through a fine adjustment lifting mechanism, and the tray is provided with an interface for connecting an optical instrument;

the side edge of the lifting rod is vertically provided with a plurality of ratchets, a pawl matched with the ratchets is movably arranged on the central disc, an elastic piece is arranged between the pawl and the central disc to enable the pawl to be abutted against the ratchets, and the pawl is matched with the ratchets to stop the lifting rod from moving downwards;

the top of lifter has screw thread portion, fine adjustment elevating system is including rotating the knob of connecting on the tray, have screw and screw thread portion spiro union cooperation on the knob, rotate the knob and let the tray follow lifter up-and-down motion.

Preferably, the tray lower surface is provided with the mount pad, the knob rotates the below of installing at the mount pad, and the middle part of mount pad has the lifter to insert the recess.

Preferably, a sliding groove is formed in the lifting rod along the axis of the lifting rod, and an upper sliding key is arranged on the mounting seat and matched with the sliding groove.

Preferably, the sliding groove penetrates through the whole lifting rod, and a lower sliding key is arranged on the central disc and matched with the sliding groove to prevent the lifting rod from rotating.

Preferably, the ratchet is arranged at the bottom of the chute.

Preferably, the bottom of the lifting rod is provided with a lifting hook for lifting the counterweight.

Preferably, the legs are telescopic in length, and have bubble levels on the central plate for leveling.

Compared with the prior art, the portable tripod of the optical instrument has the following beneficial effects:

the utility model is provided with the lifting rod which can be adjusted up and down on the basis of the existing tripod for coarsely adjusting the height, and then the top of the lifting rod is finely adjusted by the finely adjusting lifting mechanism.

Specifically, the lifting rod is slidably arranged on the central disc of the tripod, and after the lifting rod is adjusted to a proper height, the knob is turned to be in threaded fit with the top of the lifting rod, so that the knob can move up and down along with the tray accurately.

Meanwhile, in order to facilitate adjustment, the lifting rod and the central disc can only move upwards in one direction and cannot move downwards through the pawl mechanism, specifically, the lifting rod is provided with the ratchet, the lifting rod has the function of a ratchet bar, and then the central disc is provided with the movable pawl, so long as the pawl can be matched with the ratchet, the lifting rod cannot move downwards. Meanwhile, the upward movement of the lifting rod is not influenced, the lifting rod is easy to move upward, and only the lifting rod is required to be pulled upward. The lifting rod is moved downwards, and the pawl is only required to be manually separated from the ratchet.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a portable tripod for optical instruments according to the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a part view of the lifter.

Reference numerals illustrate:

1-tripod body, 1 a-leg, 1 b-central disk,

2-lifting rod, 2 a-chute and 2 b-ratchet; a 2 c-threaded portion, which is provided with a threaded portion,

3-fine adjustment lifting mechanism, 3 a-knob and 3 b-mounting seat

4-tray

5-an optical instrument, which is used for the optical instrument,

6-lifting hook.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms of orientation such as "up, down, left, right" are used to refer generally to up, down, left, right as shown with reference to fig. 1; "inner and outer" means inner and outer relative to the contour of the respective parts themselves. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to solve the problem that a large amount of horizontal lines with the same height are required to be measured in building construction, the conventional tripod is difficult to adjust and use quickly, and the portable tripod for the optical instrument is shown in fig. 1 to 3.

The portable tripod for the optical instrument comprises a tripod body 1, wherein the tripod body 1 comprises a central disc 1b and three supporting legs 1a connected to the central disc 1b,

the center plate 1b is provided with a vertically arranged lifting rod 2 in a sliding manner, the top of the lifting rod 2 is provided with a tray 4 through a fine adjustment lifting mechanism 3, and the tray 4 is provided with an interface for connecting an optical instrument 5;

a plurality of ratchets 2b are vertically arranged on the side edge of the lifting rod 2, a pawl matched with the ratchets 2b is movably arranged on the central disc 1b, an elastic piece is arranged between the pawl and the central disc 1b to enable the pawl to be abutted against the ratchets 2b, and the pawl is matched with the ratchets 2b to prevent the lifting rod 2 from moving downwards;

the top of lifter 2 has screw thread portion 2c, fine setting elevating system 3 is including rotating the knob 3a of connecting on tray 4, have screw and screw thread portion 2c spiro union cooperation on the knob 3a, rotate knob 3a and let tray 4 follow lifter 2 up-and-down motion.

The interface between the tray 4 and the optical instrument 5 is a standard interface, and is determined by the corresponding interface of the optical instrument 5.

According to the utility model, the lifting rod 2 which can be adjusted up and down is arranged on the basis of the existing tripod and is used for roughly adjusting the height, and then the top of the lifting rod 2 is finely adjusted in height through the finely adjusting lifting mechanism 3.

Specifically, the lifting rod 2 is slidably mounted on the central disc 1b of the tripod, and after the lifting rod is adjusted to a proper height, the knob 3a is turned, and the knob 3a is in threaded fit with the top of the lifting rod 2, so that the knob 3a moves up and down accurately along with the tray 4.

Meanwhile, for the convenience of adjustment, the lifting rod 2 can only move upwards in one direction but not downwards through the pawl mechanism between the lifting rod 2 and the central disc 1b, specifically, the ratchet teeth 2b are arranged on the lifting rod 2, the lifting rod 2 has the function of the ratchet teeth 2b, and then the movable pawl is arranged on the central disc 1b, so long as the pawl can be matched with the ratchet teeth 2b, the lifting rod 2 can not move downwards. Meanwhile, the upward movement of the lifting rod 2 is not influenced, the lifting rod 2 is easy to move upward, and only the lifting rod 2 is required to be pulled upward. The lifting lever 2 is moved downward only by manually moving the pawl away from the ratchet teeth 2b.

As shown in fig. 2, in order to ensure stability of the lifting rod 2, the lifting rod 2 is prevented from shaking, a connecting seat is further provided above the central disc 1b, the connecting seat is fixed on the central disc 1b, and meanwhile, the connecting seat is also slidably connected with the lifting rod 2, the lifting rod 2 is restrained from two positions of the connecting seat and the central disc 1b, and stability of the lifting rod 2 is improved.

As shown in fig. 2, the lower surface of the tray 4 is provided with a mounting seat 3b, the knob 3a is rotatably mounted under the mounting seat 3b, and the middle part of the mounting seat 3b is provided with a lifting rod 2 which can be inserted into a groove.

As shown in fig. 3, the lifting rod 2 is provided with a chute 2a along the axis thereof, and the mounting seat 3b is provided with an upper sliding key matched with the chute 2 a. The sliding groove 2a penetrates through the whole lifting rod 2, and a lower sliding key is arranged on the central disc 1b and matched with the sliding groove 2a to prevent the lifting rod 2 from rotating. Thus, the whole lifting rod 2 can not rotate and can only move up and down with one degree of freedom. At the same time, the tray 4 can only move up and down along the lifting rod 2, and the tray 4 cannot rotate. As shown in fig. 3, the ratchet teeth 2b are provided at the bottom of the chute 2 a. The bottom of the lifting rod 2 is provided with a lifting hook 6 for lifting the counterweight.

The legs 1a are telescopic in length, and a bubble level is provided on the central disc 1b for leveling.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.

Claims

1. The portable tripod of the optical instrument comprises a tripod body (1), wherein the tripod body (1) comprises a central disc (1 b) and three supporting legs (1 a) connected to the central disc (1 b), and is characterized in that,

a vertically arranged lifting rod (2) is slidably arranged on the central disc (1 b), a tray (4) is arranged at the top of the lifting rod (2) through a fine adjustment lifting mechanism (3), and an interface is arranged on the tray (4) and used for being connected with an optical instrument (5);

a plurality of ratchets (2 b) are vertically arranged on the side edge of the lifting rod (2), a pawl matched with the ratchets (2 b) is movably arranged on the central disc (1 b), an elastic piece is arranged between the pawl and the central disc (1 b) to enable the pawl to be abutted against the ratchets (2 b), and the pawl is matched with the ratchets (2 b) to prevent the lifting rod (2) from moving downwards;

the top of lifter (2) has screw portion (2 c), fine setting elevating system (3) are including rotating knob (3 a) of connecting on tray (4), have screw and screw portion (2 c) spiro union cooperation on knob (3 a), rotate knob (3 a) and let tray (4) follow lifter (2) up-and-down motion.

2. The portable tripod of an optical instrument according to claim 1, wherein the lower surface of the tray (4) is provided with a mounting seat (3 b), the knob (3 a) is rotatably mounted below the mounting seat (3 b), and a lifting rod (2) is arranged in the middle of the mounting seat (3 b) and can be inserted into the groove.

3. The portable tripod of an optical instrument according to claim 2, wherein the lifting rod (2) is provided with a chute (2 a) along the axis thereof, and the mounting base (3 b) is provided with an upper sliding key matched with the chute (2 a).

4. A portable tripod for optical instruments according to claim 3, wherein said runner (2 a) extends through the entire lifting rod (2), and a sliding key is provided on the central disc (1 b) to cooperate with the runner (2 a) to prevent rotation of the lifting rod (2).

5. An optical instrument portable tripod according to claim 4, wherein said ratchet (2 b) is provided at the bottom of the chute (2 a).

6. An optical instrument portable tripod according to claim 1, characterised in that the bottom of the lifting rod (2) has a hook (6) for lifting the counterweight.

7. An optical instrument portable tripod according to claim 1, characterised in that said legs (1 a) are telescopic in length, with a bubble level on the central disc (1 b) for levelling.