CN112482566A

CN112482566A - Truss structure system is assembled to multi freedom

Info

Publication number: CN112482566A
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: 2021-03-12
Anticipated expiration: 2040-11-25
Also published as: CN112482566B

Abstract

The invention belongs to the technical field of assembly structures, and particularly relates to a multi-degree-of-freedom assembly truss structure system. The assembly truss structure system of the invention has 5 components: the device comprises a male joint, a female joint, a connecting rod, a conversion filling block and a 5-degree conversion filling block; the basic combination and connection relation of each component are as follows: the male joint, the female joint, the connecting rod can form specific structure through "rice" font recess, "rice" font is protruding, "a" font is protruding freely to combine, and conversion filling block, 5 conversion filling block can be with the recess filling for the arch. The structural system component has simple structure and rich variation forms, and can meet the requirements of direct assembly and realize various complex configuration changes.

Description

Truss structure system is assembled to multi freedom

Technical Field

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

Background

The truss assembly structure has the advantages of light weight, flexible assembly and disassembly, good bearing capacity and stability and the like, and is widely applied to modern industry and life. The assembled structure with excellent mechanical properties can realize the advantages of multiple functions and the like, for example, the tenon-and-mortise structure in the building industry can bear larger load and can also generate certain deformation so as to realize the effects of energy absorption and earthquake resistance; various splicing structures exist in the mechanical industry, and control effects such as transmission, fastening and the like can be realized; in the model airplane, teaching aid and toy industries, attractive and changeable configurations can be designed through the splicing structure.

An excellent assembling structure system not only provides an assembling mode, but also can bring about the innovation of the whole structure, the change of the design idea and unprecedented functions, and can bring about inspiration for a plurality of industries. The existing assembly structure has clear labor division, but has not strong universality, for example, common threaded connection has good stability but can not change directions flexibly; the universal joint, although flexible in changing direction, lacks sufficient stability when it needs to be fixed.

Disclosure of Invention

In view of the above problems, the invention aims to provide a multi-degree-of-freedom assembled truss structure system with stability and flexibility, and the structural system has simple structure and abundant change forms, and can meet direct assembly and realize various complex configuration changes.

The multi-degree-of-freedom assembled truss structure system designed by the invention has 5 components in total, which are respectively as follows: the connector comprises 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 joint 1 is a triangular cylinder of an isosceles right triangle, the center of two vertical sides of the male joint is provided with a'm' -shaped groove, two triangular surfaces of the male joint are provided with a half'm' -shaped groove, and the inclined sides of the male joint are provided with'm' -shaped bulges, namely the male joint, and in order to reduce the assembling obstruction, all sharp corners of the triangular cylinder are cut into round corners. As shown in fig. 2.

Generally, the isosceles two sides of the triangle are 10mm long, the height of the column is 10mm, the height of the protrusion in the shape of a Chinese character 'mi' and the depth of the groove are 1.5mm, and each branch is 1.2mm wide and 6mm long.

Female joint 2 is isosceles right triangle's triangular prism body, and its two perpendicular aspect central authorities have "rice" font recess, and two triangular faces have half "rice" font recess, and its oblique side has "rice" font recess, and female joint promptly for reducing assemble the hindrance, cuts into the fillet with each closed angle of triangular prism. As shown in fig. 3.

Generally, the isosceles sides of the triangle are 10mm long, the height of the column is 10mm, the height of the groove shaped like a Chinese character 'mi' is 1.5mm, the width of each branch is 1.2mm, and the length is 6 mm.

The connecting rod 3 is a circular rod, and two end faces of the circular rod are respectively provided with a linear bulge. As shown in fig. 4.

Typically, the rod has a length of 30mm and a diameter of 8 mm.

The conversion filling block 4 is a protruding block shaped like a Chinese character 'mi' (equivalent to an eight-gear cylinder, eight teeth are cuboids with the same shape, and the included angle between two adjacent tooth surfaces is 45 degrees), and the size of the protruding block is the same as that of the grooves shaped like Chinese character 'mi' and the protrusions shaped like Chinese character 'mi' in the male joint 1 and the female joint 2. As shown in fig. 5.

Typically, the height of the conversion fill block 4 is 3mm, each leg (i.e., individual pick) is 1.2mm wide and 6mm long.

The 5-degree conversion filling blocks 5 are formed by connecting two'm' -shaped protruding blocks (namely two conversion filling blocks 4 with half height) in a coaxial and staggered mode by 5 degrees, and the sizes of the two'm' -shaped conversion filling blocks are the same as those of'm' -shaped groove protrusions in the male joint 1 and the female joint 2. As shown in fig. 6.

Generally, the height of each of the two Chinese character 'mi' shapes is 1.5mm, the width of each branch is 1.2mm, and the length of each branch is 6 mm.

In the invention, the linear bulges at the two ends of the connecting rod 3 are matched with the grooves in the linear grooves in the other parts in size, namely the linear bulges are just embedded into the grooves to form close fit lap joint.

In the assembled truss structure system, the basic combination and connection relationship of each component is as follows: the male joint 1, the female joint 2 and the connecting rod 3 can be freely combined into a specific structure through a 'meter' -shaped groove, a 'meter' -shaped bulge and a 'straight' -shaped bulge, and the grooves can be filled into the bulges by the conversion filling blocks 4 and 5-degree conversion filling blocks 5.

In the assembled truss structure system designed by the invention:

1. the linear bulge on the connecting rod 1 is combined with the linear groove slots 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 connection and convenient for plugging and unplugging adjustment;

2. the male joint 1 and the female joint 2 can provide 2 angles according to the structural shapes of the male joint and the female joint: 135 degrees and 90 degrees; the two are combined and assembled, so that more abundant angles can be provided, 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, only the angles generated by partial basic assembly modes are displayed in the application, and other angles can be flexibly designed through assembly;

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

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

5. the structure stability and the plugging convenience are controlled by modifying the small sizes of the slots and the bulges and utilizing interference fit, transition fit and clearance fit;

6. the design without sharp corners ensures that the structures are less obstructed when being assembled, and ensures that a user is safer;

7. the assembled truss structure system can be used as an intelligent assembled toy to exercise and improve the intelligence of children.

Drawings

Fig. 1 is a schematic representation of the present invention construction system for a spliced truss.

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

FIG. 3 is a schematic representation of a female coupling structure.

Fig. 4 is a structural illustration of a connecting rod.

FIG. 5 is a diagram of a transition pad structure.

Fig. 6 is a schematic representation of a 5 ° transition fill block structure.

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

FIG. 8 is a three-dimensional view of the female joint according to example 1.

FIG. 9 is a three-dimensional view of the connecting rod of embodiment 1.

Fig. 10 is a three-dimensional view of a conversion fill block of embodiment 1.

Fig. 11 is a three-dimensional view of an example 15 ° conversion fill block.

Fig. 12 is a three-view diagram of the assembled cabin of embodiment 1.

Fig. 13 is a schematic view of the assembled cabin in embodiment 1.

FIG. 14 is a schematic view of a column structure of example 1.

FIG. 15 is a schematic diagram of the DNA strand structure in example 1.

Fig. 16 shows the angles (e.g., 180 °, 148.61 °, 120 °, 96.42 °, 90 °) resulting from the mating of the male and female connector bevels.

Figure 17 shows the angles (e.g. 135 °, 120 °, 90 °, 60 ° and 45 °) that result from the mating of the male and female connector bevels and sides.

Reference numbers in the figures: 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 assembled truss structure system of the present invention is further described below by way of specific example embodiments.

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, different structures can be realized by utilizing the mutual insertion and matching of the 'meter' -shaped groove, the 'meter' -shaped protrusion and the 'I' -shaped protrusion.

Example 1

Adopt PLA plastics, print a plurality of negative and positive joints, connecting rod with the mode of 3D printing.

FIG. 7 is a three-dimensional view of the male connector of example 1. The three figures are respectively a right view, a front view and a top view. The figure is an isosceles right triangle triangular prism, the centers of two vertical sides of the isosceles right triangle are provided with a 'meter' -shaped groove, two triangular faces are provided with a half 'meter' -shaped groove, the inclined sides of the isosceles right triangle are provided with 'meter' -shaped bulges, namely male connectors, in order to reduce the assembly obstruction, all sharp corners of the triangular prism are cut into round corners, generally, the isosceles two sides of the triangle are 10mm in length, the height of the triangular prism is 10mm, the height of the 'meter' -shaped bulges/grooves is 1.5mm, each branch is 1.2mm in width, 6mm in length and 6.5mm in radius of the tangent round corner.

FIG. 8 is a three-dimensional view of the female joint according to example 1. The three figures are respectively a right view, a front view and a top view. The figure is a triangular column of an isosceles right triangle, the centers of two vertical aspects of the triangular column are provided with a 'meter' -shaped groove, two triangular faces are provided with a half 'meter' -shaped groove, the inclined faces of the triangular column are provided with 'meter' -shaped bulges, namely male connectors, in order to reduce the assembly obstruction, all sharp corners of the triangular column are cut into round corners, generally, the length of each isosceles two side of the triangular column is 10mm, the height of the 'meter' -shaped groove is 1.5mm, the width of each branch is 1.2mm, the length of each branch is 6mm, and the radius of a tangent round corner is 6.5 mm.

FIG. 9 is a three-dimensional view of the connecting rod of embodiment 1. The three figures are respectively a right view, a front view and a top view. The figure is a circular rod, two end faces of which are respectively provided with a linear bulge. Typically, the rod has a length of 30mm and a diameter of 8 mm.

Fig. 10 is a three-dimensional view of a conversion fill block of embodiment 1. The three figures are respectively a right view, a front view and a top view. The figure is a protrusion block shaped like a Chinese character 'mi', the size of which is the same as that of the protrusion of the groove shaped like a Chinese character 'mi' in the male joint 1 and the female joint 2, generally, the height is 3mm, the width of each branch is 1.2mm, and the length is 6 mm.

Fig. 11 is a three-dimensional view of an example 15 ° conversion fill block. The three figures are respectively a right view, a front view and a top view. The 5-degree conversion filling block is formed by connecting two 'meter' -shaped bulges in a staggered mode by 5 degrees, the size of the 5-degree conversion filling block is the same as that of the 'meter' -shaped groove bulges in the male joint 1 and the female joint 2, generally, the two 'meter' -shaped bulges are 1.5mm high, the width of each branch is 1.2mm, and the length of each branch is 6 mm.

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

In the present invention, the angles formed by the mating of the inclined surfaces and the side surfaces of the male and female connectors are 135 °, 120 °, 90 °, 60 ° and 45 °. As shown in fig. 17.

By using the spliced truss structure system disclosed by the invention, the generated angle and configuration can be flexibly designed, and only the basic combination mode is shown in the application.

The following are examples of some structures built using the modular construction system of the present invention.

The square joint is formed by butting the female joint and the male joint to provide a 90-degree corner, the single female joint provides a 135-degree corner, and the square joint and the female joint are connected by the connecting rod to form a 'small house' structure, as shown in figures 12 and 13.

Overlapping into an oriental pearl tower structure as shown in fig. 14.

The DNA strand structure was obtained by ligation, as shown in FIG. 15.

Claims

1. The utility model provides a truss structure system is assembled to multi freedom which characterized in that, there are 5 subassemblies in total, are respectively: the device comprises a male joint, a female joint, a connecting rod, a conversion filling block and a 5-degree conversion filling block; wherein:

the male joint is a triangular cylinder in an isosceles right triangle shape, the centers of two vertical aspects of the male joint are provided with a'm' -shaped groove, two triangular surfaces of the male joint are provided with a half'm' -shaped groove, and the inclined surfaces of the male joint are provided with a'm' -shaped bulge; all sharp corners of the triangular cylinder are cut into round corners;

the female joint is a triangular cylinder of an isosceles right triangle, the centers of two vertical aspects of the female joint are provided with a 'meter' -shaped groove, two triangular surfaces are provided with a half 'meter' -shaped groove, and the inclined surfaces of the female joint are provided with 'meter' -shaped grooves; all sharp corners of the triangular column are cut into round corners;

the connecting rod is a circular rod, and the two end faces of the circular rod are respectively provided with a linear bulge;

the conversion filling block is a 'meter' -shaped protruding block, which is equivalent to an eight-gear cylinder, eight teeth are cuboids 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 'meter' -shaped groove and a 'meter' -shaped protrusion in the male joint and the female joint;

the 5-degree conversion filling blocks are formed by coaxially connecting two conversion filling blocks with half height in a center manner in a staggered manner by 5 degrees, and the sizes of the conversion filling blocks are the same as the protrusions of the grooves in the shape of a Chinese character 'mi' in the male joint and the female joint;

the linear bulges at the two ends of the connecting rod 3 are matched with the grooves in the linear grooves in the other parts in size, namely the linear bulges are just embedded into the grooves to form close fit lap joint.

2. The multi-degree-of-freedom assembled truss structural system as claimed in claim 1, wherein the basic combination and connection relationship of each component is as follows: the male joint, the female joint, the connecting rod forms specific structure through "rice" font recess, "rice" font is protruding, "a" font is protruding freely to combine, and conversion filling block, 5 conversion filling block can be with the recess filling for the arch.

3. The multi-degree-of-freedom assembled truss structure system as claimed in claim 1 or 2, wherein:

in the male joint, the length of two isosceles sides of a triangle is 10mm, the height of a column is 10mm, the height of a protrusion in a shape like a Chinese character 'mi' and the depth of a groove are 1.5mm, and each branch is 1.2mm wide and 6mm long;

in the female joint, the length of two isosceles sides of a triangle is 10mm, the height of a column is 10mm, the depth of a groove shaped like a Chinese character 'mi' is 1.5mm, the width of each branch is 1.2mm, and the length of each branch is 6 mm;

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

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

in the 5-degree conversion filling block, the heights of the two Chinese character 'mi' shapes are both 1.5mm, the width of each branch is 1.2mm, and the length is 6 mm.