CN2174619Y

CN2174619Y - Triangular bar linkage

Info

Publication number: CN2174619Y
Application number: CN 92234271
Authority: CN
Inventors: 张武
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-07
Filing date: 1992-10-07
Publication date: 1994-08-17
Anticipated expiration: 2002-10-07

Abstract

The utility model belongs to a mechanical element, particularly a triangular bar linkage which can be expanded and contracted. The utility model is composed of a connecting rod and triangular plate racks, the two hinging pins of the connecting rod are joined to two triangular bodies, the top part of the lower plane of the connecting rod is hinged with the small triangular plate rack, the top part of the upper plane of the connecting rod is hinged with the small triangular plate rack, and the points of the hinging pins are lifting points; so a plurality of groups of triangular bar linkages are formed, and the triangular bar linkages are connected in series, in parallel and in stacked arrangement at height direction or level direction; thereby, the enlarging function, the shrinking function, the turning function, the telescopic function and other functions of the point position and the angle displacement of the prospective position can be realized repeatedly.

Description

Triangular bar linkage

The utility model belongs to mechanical component, particularly a kind of expansible flexible triangular coupling rod mechanism.

At present, linkage mechanism is in departments such as mine, metallurgy, building, communications and transportation, light industry, national defence, all be widely used, have easy to manufacture, cheap, solid durable, be convenient to outside the advantages such as maintenance, can replace heavy manual labor, order is finished the action of more complicated, easily is automated or semi-automation.Existing linkage mechanism linkage structure is symmetry shape, except that basic bar, all the other bars are motion bar, according to the low mobility of paying structure in plane is 1, mechanism has fixing position to carry out desired movement, but this structure makes the bar linkage structure design numerous and diverse when the compound problem that a position and the angle amount of moving require simultaneously, is difficult to realize playback desired location accurately.

The purpose of this utility model is to overcome above technical deficiency, and a kind of triangular coupling rod mechanism of putting position and the angle amount of the moving playback desired location that can require simultaneously is provided.

Task of the present utility model is, the triangular coupling rod mechanism that forms by connecting rod, triangle grillage, its connecting rod hinge pin in twos is connected into two trigones, at the hinged little triangle grillage in lower plane top point place, at the hinged little triangle grillage in last planar top end points place, its trigone, triangle grillage are the equilateral triangle body, and the hinge pin point of connecting rod is a lift points, can be implemented in height or substantially horizontal series, parallel, folded townhouse row and are combined into triangular coupling rod mechanisms of many families of many groups.

The utility model triangular coupling rod mechanism can realize the playback desired location of a position and angular displacement simultaneously, and is accurately reliable, and hinge pin point lifting simultaneously, and the trigone structural stability is reliable, is easy to control.

Specify with by way of example below in conjunction with accompanying drawing.

Fig. 1 shows the folded composition that connects of triangular coupling rod straight line.

Fig. 2 shows the folded connection of triangular coupling rod straight line plan view.

Fig. 3 shows triangular coupling rod plane-parallel type structural drawing.

Fig. 4 shows triangular coupling rod plane-parallel type plan view.

1-connecting rod among the figure; The 2-hinge pin; 3-triangle grillage

Triangular coupling rod is made up of connecting rod (1), hinge pin (2), triangle grillage (3).Its connecting rod (1) is at the lower plane top point hinged triangle grillage in place (3), at the last planar top end points hinged triangle grillage in place (3), hinge pin is connected into two trigones in twos, trigone, triangle grillage (3) are the equilateral triangle body, on two side plates of triangle grillage symmetrical hinge pin hole are arranged.Hinge pin (2) point of connecting rod (1) is a lift points, can realize that series, parallel, folded townhouse row are combined into triangular coupling rod mechanisms of many families of many groups in height or substantially horizontal.

Embodiment 1

The folded connection of triangular coupling rod straight line structure is with connecting rod (1), hinge pin (2), triangle grillage (3) hinge pin in twos is connected into two trigones, by the lower plane top point hinged triangle grillage in place (3), straight line type is folded and is unified into the triangular coupling rod reticular structure in turn, when the base is stressed, triangular coupling rod is lifting thereupon, as make aerial ladder, be the one spot of this structure extensive use, for building, maintenance, the application of aspects such as fire-fighting, also tiltable is flexible uses, and rises and falls in the lifting of articulating point place, realize some position and angular displacement, accomplish lifting freely, height can be adjusted arbitrarily, stacks at minimum space.

Embodiment 2

Triangular coupling rod plane-parallel type structure be with connecting rod (1), hinge pin (2), triangle grillage (3) in twos hinge pin be connected into two trigones, upper and lower planar top end points place and triangle grillage (3) are hinged, two public one group of connecting rods of adjacent triangle grillage (1), wherein one group of stressed lifting of triangular coupling rod, other corresponding expansion in triangular coupling rod group limit, dwindle mobile, realize lifting, the revolution of playback desired location, structure applications such as flexible.

The utility model is simple in structure, easy to manufacture, can realize the some position of playback desired location and the expansion of angular displacement, effect such as dwindle, turn round, stretch, with articulating point has been drop point, with trigone is basic carrier and articulated body, and flexibility and reliability is easy to control, the transmission effect of power is good, can realize the series, parallel in height, substantially horizontal based on triangular coupling rod, the expansion of folded online structure.

Claims

1, a kind of triangular coupling rod mechanism that forms by connecting rod (1), triangle grillage (3), it is characterized in that said connecting rod (1) in twos hinge pin (2) be connected into two trigones, at the lower plane top point hinged little triangle grillage in place (3), at the last planar top end points hinged little triangle grillage in place (3);

2, triangular coupling rod according to claim 1 mechanism is characterized in that the little triangle grillage in said trigone and hinged place (3) is the equilateral triangle body;

3, triangular coupling rod according to claim 1 mechanism is characterized in that said connecting rod hinge point is a lift points;

4, triangular coupling rod according to claim 1 mechanism is characterized in that the little triangle grillage in said hinged place (3) has hinge pin (2) to connect.