CN112482566B

CN112482566B - Truss structure system is assembled to multi freedom

Info

Publication number: CN112482566B
Application number: CN202011340978.4A
Authority: CN
Inventors: 徐凡; 张晓亮; 杨易凡
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2024-05-24
Anticipated expiration: 2040-11-25
Also published as: CN112482566A

Abstract

The invention belongs to the technical field of spliced structures, and particularly relates to a multi-degree-of-freedom spliced truss structure system. The assembled truss structure system of the invention has 5 components: the device comprises a male connector, a female connector, a connecting rod, a conversion filling block and a 5-degree conversion filling block; the basic combination and connection relation of each component is as follows: the male connector and the female connector can be freely combined to form a specific structure through the 'rice' -shaped grooves, the 'rice' -shaped bulges and the 'linear' -shaped bulges, and the grooves can be filled with bulges through the conversion filling blocks and the 5-degree conversion filling blocks. The structural system component has simple structure and rich change forms, and can not only meet direct assembly, but also realize various and complex configuration changes.

Description

Truss structure system is assembled to multi freedom

Technical Field

The invention belongs to the technical field of spliced structures, and particularly relates to a multi-degree-of-freedom spliced truss structure system.

Background

Truss assembly structures widely exist in modern industry and life due to the advantages of light weight, flexible disassembly and assembly, good bearing capacity and stability and the like. The assembled structure with excellent mechanical properties can realize the advantages of multiple functions and the like, for example, the mortise and tenon structure in the building industry can bear larger load and can generate deformation to a certain extent so as to realize the energy absorption and earthquake resistance effects; various splicing structures exist in the mechanical industry, and control effects such as transmission, fastening and the like can be realized; in the industries of aeromodelling, teaching aids and toys, attractive and changeable configurations can be designed through assembling structures.

An excellent assembly structure system not only provides an assembly mode, but also can bring about innovation of an overall structure, change of a design idea and unprecedented functions, and can bring about inspires to a plurality of industries. The existing assembly structure is clear in construction, but not strong in universality, such as common threaded connection, good in stability and incapable of flexibly changing directions; the universal joint, although flexible in direction change, lacks sufficient stability when needed for securement.

Disclosure of Invention

Aiming at the problems, the invention aims to provide a multi-degree-of-freedom spliced truss structure system which has the advantages of stability and flexibility, simple structure of components of the structure system and rich change forms, and can meet the requirements of direct splicing and realize various and complex configuration changes.

The invention designs a multi-degree-of-freedom spliced truss structure system, which comprises 5 components as follows: a male connector 1, a female connector 2, a connecting rod 3, a conversion filling block 4 and a 5-degree conversion filling block 5;

The male connector 1 is a triangular column body of an isosceles right triangle, a half of a 'rice' -shaped groove is formed in the center of two perpendicular aspects of the triangular column body, a half of a 'rice' -shaped groove is formed in two triangular surfaces of the triangular column body, and a 'rice' -shaped bulge is formed in the oblique aspect of the triangular column body, namely the male connector, so that assembly obstruction is reduced, and each sharp angle of the triangular column body is cut into a round angle. As shown in fig. 2.

Typically, the isosceles sides of the triangle are 10mm long, the post height is 10mm, the height of the "m" shaped protrusions and the depth of the grooves are 1.5mm, each branch is 1.2mm wide and 6mm long.

The female connector 2 is a triangular column body of an isosceles right triangle, a half of a'm' -shaped groove is formed in the center of two perpendicular aspects of the triangular column body, a half of a'm' -shaped groove is formed in two triangular surfaces of the triangular column body, and a'm' -shaped groove is formed in the oblique aspect of the triangular column body, namely the female connector, so that assembly obstruction is reduced, and each sharp angle of the triangular column body is cut into a round angle. As shown in fig. 3.

Generally, the isosceles sides of the triangle are 10mm long, the column height is 10mm, the height of the'm' -shaped groove is 1.5mm, the width of each branch is 1.2mm, and the length is 6mm.

The connecting rod 3 is a round rod, and two end surfaces of the round rod are respectively provided with a straight-line-shaped bulge. As shown in fig. 4.

Typically, the circular rod is 30mm in length and 8mm in diameter.

The conversion filling block 4 is a "rice" shaped protruding block (which is equivalent to an eight-gear column, eight teeth are rectangular with the same shape, and the included angle between two adjacent tooth surfaces is 45 degrees), and the size of the conversion filling block is the same as the "rice" shaped grooves and the "rice" shaped protrusions in the male connector 1 and the female connector 2. As shown in fig. 5.

Typically, the height of the conversion filling block 4 is 3mm, and each branch (i.e. a single tooth) is 1.2mm wide and 6mm long.

The 5-degree conversion filling block 5 is formed by connecting two'm' -shaped protruding blocks (namely two half-height conversion filling blocks 4) coaxially in the center and staggered by 5 degrees, and the size of the 5-degree conversion filling block is the same as that of the'm' -shaped groove protrusions in the male connector 1 and the female connector 2. As shown in fig. 6.

Generally, the two'm' -shaped parts are 1.5mm in height, each branch is 1.2mm in width and 6mm in length.

In the invention, the I-shaped bulges at the two ends of the connecting rod 3 are matched with the sizes of the grooves in the I-shaped grooves in the rest parts, namely, the I-shaped bulges are just embedded into the grooves to form tight fit lap joint.

In the assembled truss structure system, the basic combination and connection relation of each component are as follows: the male connector 1, the female connector 2 and the connecting rod 3 can freely combine to form a specific structure through the 'rice' -shaped grooves, the 'rice' -shaped bulges and the 'straight' -shaped bulges, and the grooves can be filled with bulges through the conversion filling blocks 4 and 5-degree conversion filling blocks 5.

In the assembled truss structure system designed by the invention, the structure of the assembled truss structure system is that:

1. The linear protrusions on the connecting rod 1 are combined with the linear grooves in other parts, so that 8 direction adjustment changes can be realized to match various structural requirements, and the slot type connecting mode is stable in linkage and convenient to pull out and insert;

2. The male connector 1, the female connector 2, according to their own structural shape, can provide 2 angles: 135 °, 90 °; the two can be assembled in a combined way, and the angles are more abundant, such as angles of 180 degrees, 120 degrees, 60 degrees, 45 degrees, 150 degrees, 100 degrees and the like; the abundant angles provide guarantee for the diversity and universality of the structure, and only the angles generated by partial basic assembly modes are displayed, so that other angles can be flexibly designed through assembly;

3. By using the conversion filling blocks 4 and 5-degree conversion filling blocks 5, more different basic structures can be created, and the possibility of structural design is greatly enriched;

4. the 8 directions of the connecting rod 1 are matched with the directions of the female joint and the male joint, so that strong space configuration capacity is realized;

5. the micro size of the slot and the bulge is modified, and the structure stability and the plugging convenience are controlled by interference fit, transition fit and clearance fit;

6. the design without sharp corners makes the structures less blocked when assembled, and makes the users safer;

7. the assembled truss structure system can be used as an intelligent assembled toy for training and improving the intelligence of children.

Drawings

Fig. 1 is a schematic representation of a lattice truss structure system of the present invention.

Fig. 2 is a schematic representation of a male connector structure.

Fig. 3 is a schematic representation of a female joint structure.

Fig. 4 is a schematic illustration of the structure of the connecting rod.

Fig. 5 is a diagram of a conversion filler block structure.

Fig. 6 is a diagram of a 5 deg. conversion filler block structure.

Fig. 7 is a three-view of the male connector of example 1.

Fig. 8 is a three-view of the female joint of example 1.

Fig. 9 is a three-view of the connecting rod of example 1.

Fig. 10 is a three-view diagram of the conversion pad of embodiment 1.

Fig. 11 is a three-view of an embodiment 15 deg. conversion fill block.

Fig. 12 is a three-view of the assembled house of example 1.

Fig. 13 is a schematic view of a spliced house according to example 1.

Fig. 14 is a schematic diagram of the structure of the column of example 1.

FIG. 15 is a schematic diagram showing the chain structure of example 1 DNA.

Fig. 16 shows angles (e.g., 180 °, 148.61 °, 120 °, 96.42 °, 90 °) produced by the mating of male and female joint bevels.

Fig. 17 shows angles (e.g., 135 °, 120 °, 90 °,60 °, and 45 °) produced by the mating of the male and female joint bevel and the side.

Reference numerals in the drawings: 1 is a male joint, 2 is a female joint, 3 is a connecting rod, 4 is a conversion filling block, and 5 is a 5-degree conversion filling block.

Detailed Description

The present split truss architecture is further described below by way of specific example.

Each component of the assembly structure system can be made of metal, plastic, cement and other materials, and can be manufactured in the modes of casting, cutting, 3D printing and the like. After the manufacturing is finished, the 'rice' -shaped grooves, the 'rice' -shaped bulges and the 'I' -shaped bulges are mutually spliced and matched to realize different structures.

Example 1

And printing a plurality of female and male joints and connecting rods by adopting PLA plastic and adopting a 3D printing mode.

Fig. 7 is a three-view of the male connector of example 1. The three drawings are respectively right side view, front view and top view. The drawing shows a triangular column of an isosceles right triangle, the centers of two vertical aspects of the triangular column are provided with a'm' -shaped groove, two triangular surfaces of the triangular column are provided with a half'm' -shaped groove, the inclined aspects of the triangular column are provided with a'm' -shaped bulge, namely a male joint, each sharp angle of the triangular column is cut into round angles for reducing assembly obstruction, generally, the two sides of the isosceles triangle are 10mm long, the height of the column is 10mm, the height of the'm' -shaped bulge/groove is 1.5mm, each branch is 1.2mm wide and 6mm long, and the radius of the cut round angle is 6.5mm.

Fig. 8 is a three-view of the female joint of example 1. The three drawings are respectively right side view, front view and top view. The drawing shows a triangular column of an isosceles right triangle, the centers of two vertical aspects of the triangular column are provided with a'm' -shaped groove, two triangular surfaces of the triangular column are provided with a half'm' -shaped groove, the inclined aspects of the triangular column are provided with a'm' -shaped bulge, namely a male joint, each sharp angle of the triangular column is cut into round angles for reducing assembly obstruction, generally, the length of two sides of the isosceles triangle is 10mm, the height of the triangular column is 10mm, the height of the'm' -shaped groove is 1.5mm, the width of each branch is 1.2mm, the length of each branch is 6mm, and the radius of the cut round angle is 6.5mm.

Fig. 9 is a three-view of the connecting rod of example 1. The three drawings are respectively right side view, front view and top view. The illustration is a circular rod, and two end faces of the circular rod are respectively provided with a straight-line-shaped bulge. Typically, the circular rod is 30mm in length and 8mm in diameter.

Fig. 10 is a three-view diagram of the conversion pad of embodiment 1. The three drawings are respectively right side view, front view and top view. The illustration is a "rice" shaped bump of the same dimensions as the "rice" shaped groove bumps in the male and female fittings 1, 2, typically 3mm in height, 1.2mm wide and 6mm long per branch.

Fig. 11 is a three-view of an embodiment 15 deg. conversion fill block. The three drawings are respectively right side view, front view and top view. The 5-degree conversion filling block is formed by connecting two'm' -shaped bulges staggered by 5 degrees, the size of the conversion filling block is the same as that of the'm' -shaped bulges in the male connector 1 and the female connector 2, and the two'm' -shaped bulges are 1.5mm in height, 1.2mm in width and 6mm in length.

In the present invention, the angles produced by the mating of the male and female connector bevels, such as 180 °, 148.61 °, 120 °, 96.42 ° and 90 °, are shown in fig. 16.

In the present invention, the angles produced by the mating of the male and female joint bevels and the sides are, for example, 135 °, 120 °, 90 °, 60 ° and 45 °. See fig. 17.

The angle and the configuration generated by using the assembled truss structure system can be flexibly designed, and only the combination mode of the foundation is shown.

The following are examples of some of the structures built using the split architecture system of the present invention.

The female and male connectors are used for butt joint to form a square connector to provide a 90-degree corner, and a single female connector to provide a 135-degree corner, and the connecting rods are used for linking and forming a 'cabin' structure, as shown in fig. 12 and 13.

The overlapping is formed into the structure of the Oriental pearl tower, as shown in FIG. 14.

The DNA strand structure was bridged as shown in FIG. 15.

Claims

1. A multi-degree-of-freedom spliced truss structure system is characterized in that 5 assemblies are provided, and the assemblies are respectively: the male connector, the female connector, the connecting rod, the conversion filling block and the 5-degree conversion filling block; wherein:

the male connector is a triangular column body of an isosceles right triangle, the centers of the two vertical aspects of the male connector are provided with a 'rice' -shaped groove, the two triangular surfaces are provided with half of the 'rice' -shaped groove, and the inclined aspects of the male connector are provided with 'rice' -shaped bulges; each sharp angle of the triangular prism is cut into round angles;

The female connector is a triangular column body of an isosceles right triangle, the centers of the two vertical aspects of the female connector are provided with a 'rice' -shaped groove, the two triangular surfaces are provided with half of a 'rice' -shaped groove, and the inclined aspects of the female connector are provided with a 'rice' -shaped groove; each sharp angle of the triangular prism is cut into a round angle;

The connecting rod is a round rod, and two end surfaces of the round rod are respectively provided with a straight-line-shaped bulge;

the conversion filling block is a 'rice' -shaped protruding block and is equivalent to an eight-gear column, eight teeth are rectangular bodies with the same shape, the included angle between two adjacent tooth surfaces is 45 degrees, and the size of the conversion filling block is the same as that of a 'rice' -shaped groove and a 'rice' -shaped protrusion in a male connector and a female connector;

The 5-degree conversion filling blocks are formed by connecting two half-height conversion filling blocks coaxially and staggered by 5 degrees, and the dimension of the 5-degree conversion filling blocks is the same as that of the protruding of the 'rice' -shaped groove in the male connector and the female connector;

the I-shaped bulges at the two ends of the connecting rod 3 are matched with the sizes of the grooves in the I-shaped grooves in the rest parts, namely, the I-shaped bulges are just embedded into the grooves to form tight fit lap joints.

2. The multiple degree of freedom lattice structure of claim 1, wherein the basic combination and connection relationships of the components are: the male connector and the female connector are connected, the connecting rod is freely combined through the 'rice' -shaped grooves, the 'rice' -shaped bulges and the 'linear' -shaped bulges to form a specific structure, and the grooves can be filled with bulges through the conversion filling blocks and the 5-degree conversion filling blocks.

3. The multiple degree of freedom lattice structure of claim 1 or 2, wherein:

In the male connector, the isosceles sides of the triangle are 10mm in length, the column height is 10mm, the height of the'm' -shaped bulge and the depth of the groove are 1.5mm, the width of each branch is 1.2mm, and the length of each branch is 6mm;

In the female joint, the isosceles sides of the triangle are 10mm in length, the column height is 10mm, the depth of the'm' -shaped groove is 1.5mm, the width of each branch is 1.2mm, and the length of each branch is 6mm;

in the connecting rod, the length of the round rod is 30mm, and the diameter of the round rod is 8mm;

In the conversion filling block, the width of each branch, namely a single tooth body, is 1.2mm, the length is 6mm, and the height is 3mm;

in the 5-degree conversion filling block, the heights of two'm' -shaped blocks are 1.5mm, the width of each branch is 1.2mm, and the length is 6mm.