CN114704534B - Plug assembly and assembled lattice structure based on mortise-tenon joint - Google Patents
Plug assembly and assembled lattice structure based on mortise-tenon joint Download PDFInfo
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- CN114704534B CN114704534B CN202210295501.1A CN202210295501A CN114704534B CN 114704534 B CN114704534 B CN 114704534B CN 202210295501 A CN202210295501 A CN 202210295501A CN 114704534 B CN114704534 B CN 114704534B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S1/00—Sheets, panels, or other members of similar proportions; Constructions comprising assemblies of such members
- F16S1/14—Assemblies of such members with members of forms covered by group F16S3/00 or F16S5/00
Abstract
The invention discloses a plug assembly based on mortise and tenon joint and an assembled lattice structure. The plug assembly includes: the first end and the third end of each first plug are respectively provided with a first plugging groove, the second end of each first plug is provided with a second plugging groove, one first plug in each first plug is plugged in the second plugging groove of the other first plug, the other first plug is plugged in the second plugging groove of the one first plug, and the second plug is plugged in the first plugging groove of the one first plug and is plugged in the first plugging groove of the other first plug. According to the plug assembly provided by the embodiment of the invention, the two first plugs are mutually matched through the respective second plugging grooves in a plugging manner, the second plugs are matched with the first plugging grooves of the two first plugs in a plugging manner, the tenon-and-mortise connection of the plug assembly is realized, the assembly of the plug assembly can be completed through a simple plugging action, the assembly of the plug assembly is simple, and the design and the assembly preparation of a large-size lattice structure are easy to realize.
Description
Technical Field
The invention relates to the technical field of lattice structures, in particular to a plug assembly based on mortise and tenon connection and an assembled lattice structure.
Background
The lattice structure has the advantages of light weight, high specific strength and specific stiffness, etc., in the related art, the lattice structure is usually produced by additive manufacturing (for example, by 3D printing), but the cost, efficiency, precision, dimensional stability, etc. of additive manufacturing are difficult to completely meet the requirements of the civil industry, and especially, the manufacturing of large lightweight structural members is limited by the size of additive manufacturing equipment, resulting in high development cost and limited application.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the plug assembly based on mortise and tenon connection is simple to assemble, easy to expand and wide in application range.
The invention further provides an assembling lattice structure based on the mortise and tenon joint.
The plug assembly based on the mortise-tenon joint comprises: the first plug is provided with a first end, a second end and a third end in the circumferential direction of the first plug, the first end is opposite to the third end, the second end is connected between the first end and the third end, the first end and the third end are both provided with first plugging grooves, the second end is provided with a second plugging groove, the first plugging grooves and the second plugging grooves penetrate through the first plug in the thickness direction of the first plug, one first plug in the two first plugs is plugged in the second plugging groove of the other first plug, and the other first plug is plugged in the second plugging groove of the first plug; the second plug is plugged in the first plugging groove of the first plug and plugged in the first plugging groove of the other first plug so as to prevent the two first plugs from being separated.
According to the plug assembly based on the mortise-tenon joint, the two first plugs are mutually matched through the respective second inserting grooves in an inserting manner, the second plugs are matched with the first inserting grooves of the two first plugs in an inserting manner, the mortise-tenon joint of the plug assembly is realized, the assembly of the plug assembly can be completed through simple inserting and connecting actions, the assembly of the plug assembly is simple, the expansion is easy, the application range is wide, and the design and the assembly preparation of a large-size lattice structure of the plug assembly are easy to realize.
According to some embodiments of the invention, the second mating groove of the first plug is located between the first mating groove of the first end and the first mating groove of the third end in a direction from the first end to the third end.
According to some embodiments of the invention, the first mating groove of the first end and the first mating groove of the third end are opposite and spaced apart in a direction from the first end to the third end.
According to some embodiments of the present invention, the number of the second plugs is two, and after two first plugs are plugged, one second plug is plugged into the first plugging groove of the first end of one first plug and plugged into the first plugging groove of the other first plug; the other second plug is plugged into the first plugging groove of the second end of the first plug and plugged into the first plugging groove of the other first plug, and the two first plugs are prevented from being separated by matching the two second plugs.
According to some embodiments of the invention, the second plug comprises: the first plug arm, the second plug arm and the third plug arm are connected between the first plug arm and the third plug arm, so that the first plug arm and the third plug arm are spaced apart, the second plug arm is provided with a third plug groove, and the third plug groove is suitable for being matched with and plugged in the first plug groove.
Further, in the second plug thickness direction, side surfaces of the second insertion arm protrude side surfaces of the first and third insertion arms.
According to some embodiments of the invention, the plug assembly further comprises: a first connection frame to which a plurality of the first plugs are connected, the plurality of the first plugs being spaced apart in a circumferential direction of the first connection frame.
According to some embodiments of the invention, the first plug is connected with a first connecting rod, the end of the first connecting rod far away from the first plug is provided with a third plug, and a plurality of the third plugs are matched and suitable for splicing the first plug.
According to some embodiments of the invention, the second plug is connected with a second connecting rod, the end of the second connecting rod far away from the second plug is provided with a third plug, and a plurality of the third plugs are matched and suitable for splicing the first plug.
According to some embodiments of the invention, the plug assembly further comprises: a second connection frame to which a plurality of the second plugs are connected, the plurality of the second plugs being spaced apart in a circumferential direction of the second connection frame.
According to another aspect of the invention, the assembled lattice structure based on the mortise-tenon joint comprises a plurality of plug assemblies based on the mortise-tenon joint, and the plug assemblies are in plug-in fit to form the assembled lattice structure.
According to the assembling lattice structure based on the mortise-tenon connection, the lattice structure with a complex single-cell form can be assembled by simple inserting and connecting actions without using special connecting tools such as a screwdriver and a glue gun, the lattice structure is convenient and efficient to assemble, the assembling action is simple, and automatic assembly is convenient to realize.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a first plug according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second plug according to an embodiment of the present invention;
FIG. 3 is a schematic view of a plug assembly according to an embodiment of the present invention after plugging;
FIG. 4 is an assembled schematic view of FIG. 3;
figure 5 is a schematic diagram of a first cell according to an embodiment of the present invention;
fig. 6 is a schematic view of a plug assembly according to an embodiment of the invention expanded into a kelvin cell;
FIG. 7 is an assembled schematic view of a portion of the structure of FIG. 6;
fig. 8 is a schematic diagram of a second cell according to an embodiment of the invention;
fig. 9 is a schematic view of a plug assembly according to an embodiment of the invention expanded into an octahedral cell;
FIG. 10 is an assembled schematic view of a portion of the structure of FIG. 9;
fig. 11 is a schematic diagram of a third cell according to an embodiment of the invention;
fig. 12 is a schematic diagram of a fourth cell according to an embodiment of the invention;
fig. 13 is a schematic view of a plug assembly according to an embodiment of the present invention expanded into a face centered cubic cell;
fig. 14 is an assembly view of a portion of the structure of fig. 13.
Reference numerals:
the first plug 1, the first insertion groove 11, the second insertion groove 12, the second plug 2, the first insertion arm 21, the second insertion arm 22, the third insertion groove 221, the third insertion arm 23, the first connection frame 31, the first connection rod 32, the third plug 33, the second connection rod 34, the second connection frame 35, the first cell 101, the second cell 102, the third cell 103, and the fourth cell 104.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "thickness", "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically, electrically or otherwise in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The plug assembly based on mortise and tenon joint and the assembled lattice structure according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 14.
Referring to fig. 1 to 4, the plug assembly based on the mortise and tenon connection includes: two first plugs 1 and second plugs 2, wherein:
the first plug 1 is provided with a first end, a second end and a third end in the circumferential direction of the first plug 1, the first end is opposite to the third end, the second end is connected between the first end and the third end, the first end and the third end are both provided with a first inserting groove 11, the second end is provided with a second inserting groove 12, the first inserting groove 11 and the second inserting groove 12 penetrate through the first plug 1 in the thickness direction of the first plug 1, the first inserting groove 11 and the second inserting groove 12 can be tongue-and-groove structures, it can be understood that the structure of the first plug 1 is similar to a 'K' -shaped structure, the upper end and the lower end (the first end and the third end) of the first plug are respectively provided with the first inserting groove 11, and the left end or the right end (the second end) of the first plug is provided with the second inserting groove 12.
One first plug 1 of the two first plugs 1 is plugged in the second plugging groove 12 of the other first plug 1, and the other first plug 1 is plugged in the second plugging groove 12 of the one first plug 1, the second plug 2 is plugged in the first plugging groove 11 of the one first plug 1 and is plugged in the first plugging groove 11 of the other first plug 1, so as to prevent the two first plugs 1 from being separated, that is, the two first plugs 1 are mutually plugged and matched through the respective second plugging grooves 12, so that the two first plugs 1 are mutually limited in directions other than the mutual plugging direction, the second plug 2 can be matched with the first plugging grooves 11 of the two first plugs 1, so as to limit the two first plugs 1 in the mutual plugging direction, so as to prevent the two first plugs 1 from being separated in the plugging direction, and thus realize the tenon connection of the plugs forming the plug assembly.
In some embodiments of the present invention, the first plug 1 and/or the second plug 2 may be formed by combining a plurality of parts, the first plug 1 and/or the second plug 2 may also be outwardly expanded, the plug assembly may be conveniently expanded, the plug assembly may be expanded to a lattice structure, the lattice structure may simulate a lattice configuration in a crystal material, the lattice structure may be a type of porous structure including a periodic microstructure, and has higher specific strength and specific stiffness, and at the same time, the internal pores thereof make the plug assembly have a multifunctional potential, and the plug assembly is an excellent light multifunctional material, so that the plug assembly has a wide application scenario, for example, the lattice structure expanded by the plug assembly based on the mortise and tenon connection may be used in the fields of large engineering structures, aerospace, automobiles, and the like, and has advantages of light weight, convenience in assembly, easiness in expansion, and the like.
According to the plug assembly based on mortise and tenon joint, the two first plugs 1 are mutually matched through the respective second inserting grooves 12 in an inserting manner, the second plug 2 is matched with the first inserting grooves 11 of the two first plugs 1 in an inserting manner, the mortise and tenon joint of the plug assembly is realized, the assembly of the plug assembly can be completed through simple inserting and connecting actions, the plug assembly is simple to assemble, easy to expand and wide in application range, and the plug assembly is easy to design and assemble and prepare large-size lattice structures.
In some embodiments of the present invention, referring to fig. 1, in a direction from the first end to the third end, the second insertion groove 12 of the first plug 1 is located between the first insertion groove 11 at the first end and the first insertion groove 11 at the third end, so as to facilitate reducing an influence of the second insertion groove 12 on a structural strength of the first plug 1 and facilitate an insertion assembly of the first plug 1.
In some embodiments of the present invention, referring to fig. 1, in the direction from the first end to the third end, the first mating groove 11 of the first end and the first mating groove 11 of the third end are opposite and spaced apart, and the two oppositely disposed first mating grooves 11 can facilitate the assembly of the plug assembly.
It should be noted that, the first plug 1 and its expanded structure, the second plug 2 and its expanded structure of the plug assembly may be plate-shaped structural members, and may be regarded as a planar structure with a certain thickness, and for convenience of description, in some descriptions of the present invention, the structures of the first plug 1 and its expanded structure, and the second plug 2 and its expanded structure are described according to the planar structure.
In some embodiments of the present invention, referring to fig. 1, the first plug 1 is configured to be an axisymmetrical structure, the symmetry axis of the first plug 1 penetrates through the second insertion groove 12, and the first insertion groove 11 at the first end and the first insertion groove 11 at the third end are symmetric with respect to the symmetry axis, so that the effects of forward insertion and backward insertion of the first plug 1 are the same when assembling, that is, the assembling effect is not affected when the first plug 1 rotates 180 ° along the symmetry axis thereof, thereby facilitating the improvement of the assembling efficiency of the plug assembly.
In some embodiments of the present invention, referring to fig. 3 and 4, the number of the second plugs 2 is two, after the two first plugs 1 are plugged, one second plug 2 is plugged into the first plugging groove 11 of the first end of one first plug 1 and plugged into the first plugging groove 11 of the other first plug 1, and the other second plug 2 is plugged into the first plugging groove 11 of the second end of one first plug 1 and plugged into the first plugging groove 11 of the other first plug 1, so that the two first plugs 1 are prevented from being separated by the two second plugs 2 being matched. That is, the four first inserting grooves 11 of the two first plugs 1 can be locked by the two second plugs 2, and the two second plugs 2 can limit the two first plugs 1 from being pulled out, twisted and sheared. Meanwhile, after the two first plugs 1 are mutually inserted, the two second plugs 2 can be respectively mutually inserted in the first end direction and the second end direction of any one first plug 1, the inserting directions of the two second plugs 2 are opposite, and the unidirectional disturbance is difficult to cause the connection failure of the plug assembly, so that the reliability of the plug assembly is favorably improved.
In some embodiments of the present invention, as illustrated with reference to fig. 1-4, the second plug 2 comprises: the first plug arm 21, the second plug arm 22 and the third plug arm 23 are connected between the first plug arm 21 and the third plug arm 23, the second plug arm 22 is connected between the first plug arm 21 and the third plug arm 23 to enable the first plug arm 21 and the third plug arm 23 to be spaced apart, the second plug arm 22 is provided with a third plug groove 221, the third plug groove 221 is suitable for being matched and plugged with the first plug groove 11, the first plug arm 21 and the second plug arm 22 are also suitable for being matched with two different first plug grooves 11, wherein the two first plug grooves 11 of one first plug 1 in the two first plugs 1 are respectively matched with the first plug arm 21 and the third plug arm 23, and the one first plug groove 11 of the other first plug 1 in the two first plugs 1 is matched with the third plug groove 221 in a plugging manner, so that the two first plugs 1 are limited by the second plug 2, and separation of the two first plugs 1 is avoided.
In some embodiments of the present invention, the second plug 2 is configured to be of an axisymmetrical structure, the symmetry axis of the second plug 2 penetrates through the third insertion groove 221, and the first insertion arm 21 and the third insertion arm 23 are symmetric with respect to the symmetry axis, so that the effect of forward insertion and reverse insertion of the second plug 2 is the same when being assembled, thereby facilitating the improvement of the assembly efficiency of the plug assembly.
In some embodiments of the present invention, as shown in fig. 2, in the thickness direction of the second plug 2, the side surfaces of the second insertion arm 22 protrude out of the side surfaces of the first insertion arm 21 and the third insertion arm 23, so as to facilitate increasing the tightness of the engagement between the second insertion arm 22 and the first insertion groove 11, and further facilitate increasing the friction surfaces of the two second plugs 2 during engagement, thereby increasing the complexity of engagement and preventing the two second plugs 2 from loosening.
In some embodiments of the present invention, referring to fig. 2 and 3, the thickness of the first plugging arm 21 is the same as that of the third plugging arm 23, the thickness of the second plugging arm 22 is 2 times of that of the first plugging arm 21, and the thickness of the second plugging arm 22 is the same as that of the first plugging groove 11, that is, when the third plugging groove 221 is plugged into the first plugging groove 11, the second plugging arm 22 can be embedded into the first plugging groove 11, and the second plugging arm 22 can be abutted against the side walls on both sides of the first plugging groove 11 in the groove width direction, so as to prevent the second plug 2 from shaking in the direction in which the two first plugs 1 are plugged into each other.
Referring to fig. 1 to 4, the header assembly comprises two first headers 1 and two second headers 2, and comprises the following steps in the plug-in assembly:
step S1, adjusting the angles of the two first plugs 1 to enable the thickness directions of the two first plugs 1 to be perpendicular to each other, and oppositely plugging the second plugging grooves 12 of the two first plugs 1.
For example, referring to fig. 4, one thickness direction of the two first plugs 1 is adjusted to be the Y direction, the other thickness direction of the two first plugs 1 is adjusted to be the Z direction, and the second inserting grooves 12 of the two first plugs 1 are inserted in the X direction, so that the two first plugs 1 are limited in the Z direction and the Y direction.
And S2, adjusting the angles of the two second plugs 2 to enable the thickness directions of the two second plugs 2 to be the same as the plugging direction of the two first plugs 1, and plugging the two second plugs 2 relatively in the thickness direction of one first plug 1 of the two first plugs 1 to enable the two second plugs 2 to be plugged and matched with the four first plugging grooves 11 on the two first plugs 1.
For example, referring to fig. 4, the thickness directions of the two second plugs 2 are adjusted to be the X direction, and the two second plugs 2 are relatively plugged in the Z direction, so that the two second plugs 2 limit the two first plugs 1 in the X direction, and the two first plugs 1 are prevented from being separated.
In some embodiments of the present invention, as illustrated with reference to fig. 5, the plug assembly further comprises: the first connection frame 31 is connected with the plurality of first plugs 1, the plurality of first plugs 1 are spaced apart in the circumferential direction of the first connection frame 31, the first connection frame 31 and the plurality of first plugs 1 thereon can form the first cell 101, the first cell 101 is of a plate-shaped structure, and the first cell 101 can realize expansion of the plug assembly so as to meet different use requirements.
Alternatively, the first connection frame 31 may be a rectangular frame, the outside of each corner of the rectangular frame may be provided with one first plug 1, and a reinforcing rib connecting diagonal lines of the rectangular frame may be further provided therein.
Alternatively, the first connection frame 31 may be a triangular frame, and the outside of each corner of the triangular frame may be provided with one first plug 1.
It is of course understood that the shape and structure of the first coupling frame 31 are not limited thereto, and the shape and structure of the first coupling frame 31 may be selected according to actual needs.
Referring to fig. 5 to 7, the first cell 101 has 4 installation nodes, each installation node is a complete first plug 1, the installation process only needs to complete the installation of the mortise and tenon structure at each installation node in sequence, and the expandable lattice configuration of the plurality of first cells 101 and the plurality of second plugs 2 is Kelvin (Kelvin) cell.
In some embodiments of the present invention, referring to fig. 8, a first connection rod 32 is connected to the first plug 1, an end of the first connection rod 32 far away from the first plug 1 is provided with a third plug 33, and a plurality of the third plugs 33 are cooperatively adapted to splice the first plug 1. The first plug 1, the at least one first connecting rod 32 and the at least one third plug 33 can form a second cell 102, the second cell 102 is a plate-shaped structure, and the second cell 102 can realize expansion of a plug assembly to meet different use requirements.
Optionally, a plurality of first connecting rods 32 are disposed on the first plug 1 of the second cell 102, and a third plug 33 is disposed on an end plate of each first connecting rod 32 away from the first plug 1.
Referring to fig. 8, the second cell element 102 is similar to an "X" shape, the first connecting rods 32 on the second cell element are equal in length, the included angle between any two adjacent first connecting rods 32 is 90 °, and 4 third plugs 33 are matched to splice the first plug 1. The first plug 1 may be divided into two halves along its symmetry axis, and each of the two halves is divided into two equal-thickness portions in the thickness direction, and the third plug 33 may be divided into 1 of the 4 portions by the first plug 1.
It is understood that the shape and structure of the second cell 102 are not limited thereto, and the shape and structure of the second cell 102 may be selected according to actual needs.
Referring to fig. 8-10, the second cell 102 has 5 installation nodes, wherein only the central installation node is the complete first plug 1, the other 4 installation nodes need to form the complete first plug 1 with the other four unit cells, all the nodes formed or having the complete plugs can be connected according to the tenon-and-mortise assembly method, and the expandable lattice configuration of the plurality of second cells 102 and the plurality of second plugs 2 is an octahedral cell.
In some embodiments of the present invention, referring to fig. 11, a second connecting rod 34 is connected to the second plug 2, the end of the second connecting rod 34 away from the second plug 2 is provided with a third plug 33, and a plurality of the third plugs 33 are matched and adapted to splice the first plug 1. The second plug 2, the at least one second connecting rod 34 and the at least one third plug 33 can form a third cell 103, the third cell 103 is a plate-shaped structure, and the third cell 103 can realize expansion of a plug assembly to meet different use requirements.
Optionally, a plurality of second connecting rods 34 are disposed on the second plugs 2 of the third cells 103, and a third plug 33 is disposed on an end plate of each second connecting rod 34 away from the first plug 1.
Referring to fig. 11, the third cell 103 is similar to an "X" shape, the second connecting rods 34 thereon have equal length, an included angle between any two adjacent second connecting rods 34 is 90 °, and 4 third plugs 33 are matched to splice the first plug 1.
It is understood that the shape and structure of the third cell 103 are not limited thereto, and the shape and structure of the third cell 103 may be selected according to actual needs.
In some embodiments of the present invention, as illustrated with reference to fig. 12, the plug assembly further comprises: the second connection frame 35 is connected with a plurality of second plugs 2, the plurality of second plugs 2 are spaced apart in the circumferential direction of the second connection frame 35, the second connection frame 35 and the plurality of second plugs 2 thereon can form a fourth cell 104, the fourth cell 104 is a plate-shaped structure, and the fourth cell 104 can realize expansion of the plug assembly to meet different use requirements.
Alternatively, the second connection frame 35 may be a diamond frame, and one second header 2 may be provided outside each corner of the diamond frame.
It is of course understood that the shape and structure of the second connection frame 35 are not limited thereto, and the shape and structure of the second connection frame 35 may be selected according to actual needs.
Referring to fig. 11-14, the second cells 102, the third cells 103, and the fourth cells 104 may be arranged in a lattice configuration that is a face-centered cubic (FCC) unit cell, wherein the third cells 103 and the fourth cells 104 are perpendicular to each other at the same installation node position.
Referring to fig. 5-14, the assembled lattice structure based on the tenon-and-mortise connection according to another embodiment of the present invention includes a plurality of plug assemblies based on the tenon-and-mortise connection according to the above embodiments, and the plug assemblies are inserted and matched to form an assembled lattice structure, wherein the microstructure form of the assembled lattice structure may be Kelvin unit cell, octahedral unit cell, face-centered cubic unit cell, or the like.
According to the assembling lattice structure based on the mortise-tenon connection, the lattice structure with a complex single-cell form can be assembled by simple inserting and connecting actions without using special connecting tools such as a screwdriver and a glue gun, the lattice structure is convenient and efficient to assemble, the assembling action is simple, and automatic assembly is convenient to realize.
Meanwhile, the lattice structure cell element is a plane unit, so that batch and low-cost production is easily realized through an injection molding mode, the technical bottleneck of efficient batch production of the lattice structure is solved, the mode of tenon-and-mortise connection assembly preparation is also suitable for lattice materials of other multiple material systems such as metal and continuous fiber composite materials, and the lattice structure cell element has better universality and expansibility.
In addition, the lattice structure can be assembled into a complex three-dimensional lattice structure based on the lattice discrete assembly concept, the microstructure form can be changed according to the load demand and is easy to assemble to obtain large-size lattice lightweight parts, and the mounting nodes of the lattice structure can be mutually matched by means of self structural design, so that the lattice material with high mechanical property and high connection reliability is obtained.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. The utility model provides a plug subassembly based on mortise-tenon joint which characterized in that includes:
the first plug is provided with a first end, a second end and a third end in the circumferential direction of the first plug, the first end is opposite to the third end, the second end is connected between the first end and the third end, the first end and the third end are both provided with first plugging grooves, the second end is provided with a second plugging groove, the first plugging grooves and the second plugging grooves penetrate through the first plug in the thickness direction of the first plug, one first plug in the two first plugs is plugged in the second plugging groove of the other first plug, and the other first plug is plugged in the second plugging groove of the first plug;
the second plug is plugged in the first plugging groove of the first plug and plugged in the first plugging groove of the other first plug so as to prevent the two first plugs from being separated.
2. The mortise-tenon based connection plug assembly of claim 1, wherein the second mating groove of the first plug is located between the first mating groove of the first end and the first mating groove of the third end in a direction from the first end to the third end.
3. The mortise-and-tenon based plug assembly of claim 1, wherein the first mating groove of the first end and the first mating groove of the third end are opposed and spaced apart in a direction from the first end to the third end.
4. The mortise-tenon based plug assembly of claim 1, wherein the number of the second plugs is two, and when two of the first plugs are plugged, one of the second plugs is plugged into the first plugging groove of the first end of one of the first plugs and plugged into the first plugging groove of the other of the first plugs;
the other second plug is plugged into the first plugging groove of the second end of the first plug and plugged into the first plugging groove of the other first plug, and the two first plugs are prevented from being separated by matching the two second plugs.
5. The mortise-tenon based connection plug assembly of claim 1 or 4, wherein the second plug comprises: the first plug arm, the second plug arm and the third plug arm are connected between the first plug arm and the third plug arm, so that the first plug arm and the third plug arm are spaced apart, the second plug arm is provided with a third plug groove, and the third plug groove is suitable for being matched with and plugged in the first plug groove.
6. The mortise-tenon based plug assembly of claim 5, wherein a side surface of the second plugging arm protrudes through side surfaces of the first and third plugging arms in the second plug thickness direction.
7. The mortise-tenon based connection plug assembly of claim 1, further comprising: a first connection frame to which a plurality of the first plugs are connected, the plurality of the first plugs being spaced apart in a circumferential direction of the first connection frame.
8. The mortise and tenon joint based plug assembly according to claim 1, wherein the first plug is connected with a first connecting rod, a third plug is arranged at an end part of the first connecting rod far away from the first plug, and a plurality of the third plugs are matched and suitable for splicing the first plug.
9. The mortise and tenon joint based plug assembly according to claim 1, wherein the second plug is connected with a second connecting rod, a third plug is arranged at the end part, far away from the second plug, of the second connecting rod, and the third plugs are matched and suitable for splicing the first plug.
10. The mortise-tenon based connection plug assembly of claim 1, further comprising: a second connection frame to which a plurality of the second plugs are connected, the plurality of the second plugs being spaced apart in a circumferential direction of the second connection frame.
11. An assembled lattice structure based on mortise and tenon joints, comprising a plurality of plug assemblies based on mortise and tenon joints according to any one of claims 7 to 10, wherein the plug assemblies are in plug-in fit to form the assembled lattice structure.
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Citations (4)
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CN108443283A (en) * | 2018-05-31 | 2018-08-24 | 华中科技大学 | A kind of overlapped joinery and its construction system and its application of three dimensionality |
CN209422970U (en) * | 2018-12-26 | 2019-09-24 | 北京建院建筑文化传播有限公司 | A kind of block toy |
CN111196315A (en) * | 2020-02-28 | 2020-05-26 | 清华大学苏州汽车研究院(吴江) | Vehicle body framework structure |
CN111482955A (en) * | 2020-04-15 | 2020-08-04 | 哈尔滨工业大学 | Flexible driving device |
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WO2015073098A2 (en) * | 2013-08-27 | 2015-05-21 | University Of Virginia Patent Foundation | Three-dimensional space frames assembled from component pieces and methods for making the same |
US20150321115A1 (en) * | 2014-05-08 | 2015-11-12 | James Fleet Hower | Interlocking Components forming Arbitrary Solids with Complex Curvatures |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108443283A (en) * | 2018-05-31 | 2018-08-24 | 华中科技大学 | A kind of overlapped joinery and its construction system and its application of three dimensionality |
CN209422970U (en) * | 2018-12-26 | 2019-09-24 | 北京建院建筑文化传播有限公司 | A kind of block toy |
CN111196315A (en) * | 2020-02-28 | 2020-05-26 | 清华大学苏州汽车研究院(吴江) | Vehicle body framework structure |
CN111482955A (en) * | 2020-04-15 | 2020-08-04 | 哈尔滨工业大学 | Flexible driving device |
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