CN218119300U - A triangular support device for measuring - Google Patents

Abstract

The utility model discloses a triangular support device for measurement, relates to the field of triangular support frames, solves the problem of inconvenient horizontal adjustment of the existing support platform, and comprises a stand, the outside of the stand is fixedly equipped with three rotating shafts, and the outer surface of the rotating shaft rotates The swing arm is sleeved, and the bottom of the swing arm is fixedly installed with two sliding rods, and the outer side of the sliding rod is slidingly sleeved with a sliding sleeve, and the lower end of the sliding sleeve is fixedly installed with a cone-bottom foot rod. With the cooperation of the components, after the three swing arms are unfolded, the image of the measuring instrument installed on the upper end of the platform can be observed, and the knob 2 can be rotated. During the rotation, the sliding sleeve can be pushed through the sliding sleeve block, so that the The height of one of the swing arms is extended, and it is adjusted through the meshing of the gear and the teeth, which can realize micro-pitch adjustment, so that there is no need to worry about the adjustment range being too large, but it needs to be adjusted repeatedly.

Description

A triangular support device for measuring

technical field

The utility model relates to the field of triangular support frames, in particular to a triangular support device for measurement.

Background technique

During the indoor and outdoor construction of construction projects, the surveying and mapping measuring instrument is often used to measure the height and level of the construction site. The surveying and mapping measuring instrument is installed on a special retractable tripod for use.

During the use of the existing triangular support frame, although the surveying and mapping measuring instrument can be adapted to various conditions on the construction site, and the placement angle and height of the triangular support frame can be adjusted, the legs of the existing triangular support frame cannot be adjusted during the adjustment process. , it is not convenient for the user to observe the imaging inside the surveying and measuring instrument while fine-tuning the height of the three legs, so that the surveying and measuring instrument installed on the top platform of the tripod can quickly be in a horizontal state. The existing adjustment The method is to adjust the heights of the three legs multiple times. Therefore, we propose a triangular support device for measurement.

Utility model content

The purpose of this utility model is to provide a triangular support device for measurement that can fine-tune the three legs horizontally, which can solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a triangular support device for measurement, including a stand, three rotating shafts are fixedly installed on the outside of the stand, and the outer surface of the rotating shaft is rotatably sleeved with a swing arm, so The bottom of the swing arm is fixedly equipped with two sliding rods, and the outer side of the sliding rods is slidingly sleeved with a sliding sleeve, and the lower end of the sliding sleeve is fixedly installed with a cone-bottom foot rod; The adjustment assembly for fine-tuning the height of the arm is installed between the swing arm and the sliding sleeve, and a limiting assembly is installed on the outside of the adjustment assembly; the brake assembly can adjust the deflection angle of the swing arm The fixed brake assembly is installed on the inner side of the swing arm, and the surveying and measuring instrument is installed on the upper end of the stand for use.

Preferably, the adjustment assembly includes a knob 2 that is rotatably embedded in the lower part of the swing arm, a positioning column is fixedly embedded in the upper part of the sliding sleeve, and a sliding sleeve block is movably socketed on the outer surface of the positioning column. The outer surface of the knob 2 is fixedly sleeved with a gear, and the end surface of the gear far away from the knob 2 is slidably attached to the swing arm, and one side wall of the sliding sleeve block is fixedly installed with several straight-line Several teeth are distributed, and the teeth are in movable mesh with the gear, and the rotation of the gear can make the sliding sleeve block push the sliding sleeve to move up and down through the meshing with the gear.

Preferably, the limiting component includes a chute rail fixedly installed on the side wall of the sliding sleeve block, a limit cylinder is installed on the side end of the chute rail, and the limit cylinder is fixedly connected to the swing arm , a T-shaped bar is slidably installed inside the limiting cylinder, and a sliding plate is fixedly installed on one end of the T-shaped bar close to the swing arm, and the sliding plate is slidably engaged with the limiting cylinder, so The end of the sliding plate away from the swing arm is equipped with a spring one, the bottom of the chute rail is provided with several positioning holes distributed in a linear array, and the inner side of the chute rail is slidably installed with a rectangular slider, The bottom of the rectangular slider is fixedly installed with a card post, and the card post is movably fitted in the positioning hole, and the rectangular slider and the end of the T-shaped bar away from the swing arm are fixedly installed with a connecting rod. The rod can brake the chute rail in the state where the clamping column is fitted with the positioning hole, so that the sliding sleeve block cannot move.

Preferably, the telescopic length of the T-shaped bar is smaller than the height of the rectangular slider, so as to ensure that the rectangular slider will not slip off from the inside of the chute rail when the T-shaped bar moves up and down.

Preferably, the brake assembly includes a cavity opened inside the swing arm, and the rotating shaft is embedded in the cavity, the inner side of the cavity slides into the limit plate, and the limit plate A spring two is installed between the end of the plate close to the rotating shaft and the swing arm, a rotating shaft is installed in the middle of the cavity, and an eccentric wheel is fixedly sleeved on the outer eccentric of the rotating shaft. The end of the shaft away from the eccentric wheel is fixedly equipped with a knob one, and the end of the limit plate away from the eccentric wheel is fixedly equipped with a rubber pad, and the eccentric wheel can push the rubber pad during the rotation, so that the rubber pad and The rotating shaft is closely fitted, and under the action of pushing force, the friction between the rubber pad and the rotating shaft can prevent the swing arm from slipping easily.

Preferably, the arc surface of the eccentric wheel is provided with a horizontal cut surface, and when the eccentric wheel rotates until the horizontal cut surface touches the rubber pad, the horizontal cut surface can ensure that the eccentric wheel will not slip sideways.

Compared with the prior art, the beneficial effects of the utility model are:

1. Through the cooperation of the adjustment component and the limit component, the utility model can observe the imaging situation of the measuring instrument installed on the upper end of the platform after the three swing arms are unfolded, and rotate the knob 2. During the rotation process, it can pass through the sliding The set block pushes the sliding sleeve, so that the height of one of the swing arms is extended, and the adjustment is made through the meshing of the gear and the tooth, which can realize the adjustment of micro and micro distances, so that there is no need to worry about the adjustment range being too large, but it needs to be adjusted repeatedly;

2. In the utility model, through the action of the eccentric wheel and the rubber pad, after the swing arm is unfolded, the rotation of the eccentric wheel can push the rubber pad, so that the rubber pad is close to the rotating shaft and brakes the rotating shaft.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a structural schematic diagram of the utility model sliding sleeve;

Fig. 3 is a structural schematic diagram of a sliding sleeve block and a positioning column of the present invention;

Fig. 4 is a structural schematic diagram of the limit cylinder of the present invention;

Fig. 5 is an enlarged view of place A in Fig. 4 of the present utility model;

Fig. 6 is a structural schematic diagram of the eccentric wheel and the rubber pad of the utility model.

In the figure: 1-stand; 2-swing arm; 3-sliding rod; 4-sliding sleeve; 5-cone foot rod; 6-knob 1; - gear; 11- positioning column; 12- chute rail; 13- limit cylinder; 14- cavity; 15- T-shaped bar; 16- spring one; 17- connecting rod; 18- rectangular slider; Post; 20-location hole; 21-eccentric wheel; 22-rubber pad; 23-spring two.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all implementations example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

Please refer to Fig. 1 and Fig. 2, a kind of triangular support device for measuring in the figure, comprises platform 1, and the exterior of platform 1 is fixedly installed with three rotating shafts, and the outer surface of rotating shaft is rotatably sleeved with swing arm 2, and the swing arm 2 Two sliding rods 3 are fixedly installed at the bottom, and the outer sliding sleeve of the sliding rod 3 is connected with a sliding sleeve 4, and the lower end of the sliding sleeve 4 is fixedly installed with a cone foot rod 5; the adjustment assembly can adjust the height of a single swing arm 2 The fine-tuning adjustment assembly is installed between the swing arm 2 and the sliding sleeve 4, and a limiting assembly is installed on the outside of the adjustment assembly; the brake assembly, which can fix the deflection angle of the swing arm 2, is installed on the swing arm 2 The inboard of surveying and measuring instrument is installed on the upper end of stand 1 and uses.

Please refer to FIG. 3 , the adjustment assembly in the figure includes a rotary knob 2 8 embedded in the lower part of the swing arm 2 , the upper part of the sliding sleeve 4 is fixedly embedded with a positioning column 11 , and the outer surface of the positioning column 11 is movably sleeved with a sliding sleeve block 7 , the outer surface of the knob 2 8 is fixedly sleeved with a gear 10, and the end surface of the gear 10 away from the knob 2 8 is slidably attached to the swing arm 2, and one of the side walls of the sliding sleeve block 7 is fixedly installed with several linearly distributed There are several gear teeth 9, and the gear teeth 9 are meshed with the gear 10. The rotation of the gear 10 can make the sliding sleeve block 7 push the sliding sleeve 4 to move up and down through the meshing with the gear teeth 9.

Please refer to Fig. 4 and Fig. 5, the limiting assembly in the figure includes the chute rail 12 fixedly installed on the side wall of the sliding sleeve block 7, the side end of the chute rail 12 is equipped with a limit tube 13, and the limit tube 13 is connected with the swing arm 2 is a fixed connection, a T-shaped bar 15 is slidably installed inside the limiting cylinder 13, and a sliding plate is fixedly installed on one end of the T-shaped bar 15 close to the swing arm 2, and the sliding plate and the limiting cylinder 13 are slidably fitted, and the sliding plate One end of the swing arm 2 away from the spring 16 is installed, and the bottom of the chute rail 12 is provided with several positioning holes 20 distributed in a linear array, and the inner side of the chute rail 12 is slidably equipped with a rectangular slider 18, the rectangular slider The bottom of 18 is fixedly installed with clamp post 19, and clamp post 19 is movably fitted with positioning hole 20, and rectangular slider 18 and T-shaped bar 15 are fixedly installed with connecting rod 17 together at one end away from swing arm 2, between clamp post 19 and positioning hole 20. When the positioning hole 20 is engaged, the sliding groove rail 12 can be braked so that the sliding sleeve block 7 cannot move.

Please refer to FIG. 5 , the telescopic length of the T-shaped bar 15 is less than the height of the rectangular slider 18 in the illustration, so that the rectangular slider 18 will not slip off from the inside of the chute rail 12 when the T-shaped bar 15 moves up and down.

The working principle of quickly fine-tuning the level of the measuring instrument on the upper end of the platform 1: the user expands the swing arm 2 to make the bottom of the three cone-bottomed rods 5 effectively contact the ground, and then installs the measuring instrument on the upper end of the platform 1. When the user adjusts the level of the measuring instrument, the user adjusts the knob 2 8 by hand while observing the imaging inside the measuring instrument. During the adjustment process, the user inserts two fingers between the T-bar 15 and the swing arm 2, the fingers can slightly lift the T-shaped bar 15, so that the clamping post 19 is no longer fitted with the positioning hole 20, at this time, the user can drive the gear 10 to rotate through the knob 2 8, through the gear 10 and the gear 9 The rotation of the sliding sleeve block 10 can push the sliding sleeve 4 downward through the positioning column 11, so that the swing arm 2 can move upward;

Since the sliding sleeve 4 is moved through the meshing transmission between the gear 10 and the tooth 9, the meshing adjustment of the gear 10 is a small micro-adjustment. It is more precise and detailed, and there is no need to try to adjust it back and forth. It is only necessary to twist the gear 10 according to the imaging state inside the measuring instrument.

Example 2

Please refer to Fig. 6, this embodiment is further described for Embodiment 1. In the figure, the brake assembly includes a cavity 14 opened inside the swing arm 2, and the rotating shaft is embedded in the cavity 14, and the inner side of the cavity 14 is slidingly embedded. There is a limit plate, and a spring 23 is installed between one end of the limit plate near the rotating shaft and the swing arm 2, a rotating shaft is installed in the middle of the cavity 14, and an eccentric wheel 21 is fixedly sleeved on the outer eccentric of the rotating shaft, The end of the rotating shaft away from the eccentric wheel 21 is fixedly equipped with a knob 1 , and the end of the limit plate away from the eccentric wheel 21 is fixedly equipped with a rubber pad 22 .

In this embodiment: after the angle adjustment of the swing arm 2 is completed, the eccentric wheel 21 can be driven to rotate by the knob one 6, and the eccentric wheel 21 can push the rubber pad 22 during the rotation, so that the rubber pad 22 is closely connected to the rotating shaft. Fitting, under the action of pushing force, the friction force between the rubber pad 22 and the rotating shaft can prevent the swing arm 2 from sliding easily.

Example 3

Please refer to FIG. 6 , this embodiment further illustrates other embodiments, the arc surface of the eccentric wheel 21 is provided with a horizontal section.

In this embodiment: when the eccentric wheel 22 rotates until the horizontal section is against the rubber pad 22, the horizontal section can ensure that the eccentric wheel 21 will not slip.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the terms "comprising" - "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion such that a process - method - article or apparatus comprising a set of elements includes not only those elements but also includes elements not expressly listed. other elements of, or also include elements inherent to such a process-method-article or apparatus.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes-modifications can be made to these embodiments without departing from the principle and spirit of the present invention -Alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. a triangular support device for measurement, comprising a stand (1), the outside of the stand (1) is fixedly equipped with three rotating shafts, and the outer surface of the rotating shaft is rotatably sleeved with a swing arm (2), characterized in that : the bottom of the swing arm (2) is fixedly equipped with two slide bars (3), and the outer sliding sleeve of the slide bar (3) is sleeved with a slide sleeve (4), and the lower end of the slide sleeve (4) Cone-bottom foot bar (5) is fixedly installed; An adjustment assembly, the adjustment assembly that can fine-tune the height of a single swing arm (2) is installed between the swing arm (2) and the sliding sleeve (4), and the outside of the adjustment assembly is installed have limited components; The brake assembly, which can fix the deflection angle of the swing arm (2), is installed on the inner side of the swing arm (2). 2. A triangular support device for measurement according to claim 1, characterized in that: the adjustment assembly includes a knob two (8) that is rotatably embedded in the lower part of the swing arm (2), and the sliding sleeve (4 ) is fixedly embedded with a positioning column (11), and the outer surface of the positioning column (11) is movably socketed with a sliding sleeve block (7), and the outer surface of the knob two (8) is fixedly socketed with a gear ( 10), and the end surface of the gear (10) away from the knob two (8) slides and fits with the swing arm (2), and one side wall of the sliding sleeve block (7) is fixedly installed with Several teeth (9) are distributed in a straight line, and the teeth (9) are in active engagement with the gear (10). 3. A triangular support device for measurement according to claim 2, characterized in that: the limiting assembly includes a slide rail (12) fixedly installed on the side wall of the slide block (7), the slide The limit tube (13) is installed on the side end of the groove rail (12), and the limit tube (13) is fixedly connected with the swing arm (2), and the inside of the limit tube (13) is slidably installed with T-shaped bar (15), and the end of the T-shaped bar (15) close to the swing arm (2) is fixedly mounted with a sliding plate, and the sliding plate is slidingly fitted with the limit cylinder (13), One end of the sliding plate away from the swing arm (2) is equipped with a spring one (16), and the bottom of the chute rail (12) is provided with several positioning holes (20) distributed in a linear array, and the The inner side of the chute rail (12) is slidably equipped with a rectangular slider (18), and the bottom of the rectangular slider (18) is fixedly equipped with a post (19), and the post (19) and the positioning The hole (20) is movably fitted, and the end of the rectangular slider (18) and the T-shaped bar (15) away from the swing arm (2) is jointly fixedly installed with a connecting rod (17). 4. A triangular support device for measuring according to claim 3, characterized in that: the telescopic length of the T-shaped bar (15) is smaller than the height of the rectangular slider (18). 5. A triangular support device for measuring according to claim 1, characterized in that: the brake assembly includes a cavity (14) opened inside the swing arm (2), and the rotating shaft is embedded in Inside the cavity (14), the inner side of the cavity (14) slides and inserts a limit plate, and a spring is installed between the end of the limit plate close to the rotating shaft and the swing arm (2) Two (23), the middle position of the cavity (14) is rotatably installed with a rotating shaft, and the outer eccentric of the rotating shaft is fixedly sleeved with an eccentric wheel (21), and the rotating shaft is far away from the eccentric wheel (21 ) is fixedly installed with a knob one (6), and the end of the limiting plate away from the eccentric wheel (21) is fixedly installed with a rubber pad (22). 6. A triangular support device for measuring according to claim 5, characterized in that: the arc surface of the eccentric wheel (21) is provided with a horizontal section.

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