CN114810775A - Detachable connector, lattice unit cell and assembled lattice structure - Google Patents

Detachable connector, lattice unit cell and assembled lattice structure Download PDF

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Publication number
CN114810775A
CN114810775A CN202110124945.4A CN202110124945A CN114810775A CN 114810775 A CN114810775 A CN 114810775A CN 202110124945 A CN202110124945 A CN 202110124945A CN 114810775 A CN114810775 A CN 114810775A
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CN
China
Prior art keywords
slot
connecting part
slots
detachable connector
lattice unit
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Pending
Application number
CN202110124945.4A
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Chinese (zh)
Inventor
殷莎
黄瑶
郭维华
杨瑞恒
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Beihang University
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Beihang University
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Publication date
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Priority to CN202110124945.4A priority Critical patent/CN114810775A/en
Publication of CN114810775A publication Critical patent/CN114810775A/en
Pending legal-status Critical Current

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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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/02—Releasable fastening devices locking by rotation
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/20—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using bayonet connections
    • 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
    • F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
    • F16S3/06—Assemblies of elongated members
    • F16S3/08—Assemblies of elongated members forming frameworks, e.g. gratings
    • 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
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/10—Details of socket shapes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The invention discloses a detachable connector, a dot matrix unit cell and an assembled dot matrix structure, wherein the detachable connector comprises a first connecting part and a second connecting part, a plurality of grooves are formed in the first connecting part at intervals, stop parts are arranged in the grooves, the second connecting part comprises a base body and a plurality of protruding parts, the base body is provided with a plurality of protruding parts at intervals, the number of the protruding parts is the same as that of the grooves, the protruding parts extend into the grooves when the second connecting part moves towards the first connecting part, and when the second connecting part rotates relative to the first connecting part, the protruding parts rotate in the grooves by a certain angle and are limited by the stop parts. According to the detachable connector provided by the embodiment of the invention, in the process of connecting the first connecting part and the second connecting part, the first connecting part is simply rotated to realize quick fastening and detachment between the first connecting part and the second connecting part, the assembly and disassembly efficiency is improved, and the reliability of the connecting part of the detachable connector is ensured.

Description

Detachable connector, lattice unit cell and assembled lattice structure
Technical Field
The invention belongs to the technical field of material processing, production and manufacturing, and particularly relates to a detachable connector, a lattice unit cell and an assembled lattice structure.
Background
The lattice structure as an ordered porous structure has more excellent mechanical properties than the traditional unordered porous structures such as foam and the like, is the most effective engineering weight reduction scheme recognized at present, is used for meeting the structural weight reduction of aerospace large-scale components, reducing energy consumption, improving the bearing efficiency of the structure, and has the advantages of energy absorption, heat transfer and the like.
However, the lattice structure is limited by the complicated geometric shape and processing technology of the lattice structure, and the complete lattice structure is difficult to realize mass production. Although the 3D printing technology can realize the integral manufacturing of the lattice structure, the manufacturing cost is high and the processing efficiency is low.
In the prior art, in order to realize mass production of dot matrix, assembled dot matrix structure is proposed and applied. The assembling lattice structure is mainly characterized in that the minimum unit cell of the complete lattice structure is determined firstly, mass production is realized by aiming at the unit cell design and processing technology, then the unit cells are assembled according to the geometric shape of a structural part, the assembling lattice structure is mainly formed by connecting a plurality of lattice unit cells through bolts, the assembling space needs to be considered in the traditional bolt connection, certain requirements are required for the shape of the unit cells, and when the bolts are assembled and disassembled manually, the steps are more complicated, the difficulty is high, the labor intensity is high, and the assembling efficiency of the assembling lattice structure is lower.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, a first object of the present invention is to provide a detachable connector, which can achieve rapid assembly and disassembly of a lattice structure and ensure strength of a joint, and solve the problems of low efficiency and complicated disassembly steps of connecting a plurality of lattice unit cells by bolts in the prior art.
The second objective of the present invention is to provide a lattice unit cell.
A third object of the present invention is to provide an assembled dot matrix structure.
According to an embodiment of the invention, the detachable connector comprises: the first connecting part is provided with a plurality of slots, the slots are arranged at intervals, and stop parts are arranged in the slots; the second connecting part comprises a base body and a plurality of protruding parts, the base body is provided with the plurality of protruding parts at intervals, and the number of the protruding parts is the same as that of the grooves; the protruding part extends into the slot when the second connecting part moves towards the position close to the first connecting part; when the second connecting part rotates relative to the first connecting part, the protruding part rotates for a certain angle in the slot and is limited by the stopping part.
According to the detachable connector provided by the embodiment of the invention, the plurality of slots are formed in the first connecting part, the protruding parts matched with the slots are arranged on the second connecting part, the stopping parts are arranged in the slots, the protruding parts on the second connecting part respectively extend into the corresponding slots in the process of connecting the first connecting part and the second connecting part, the first connecting part is manually rotated to enable the protruding parts to rotate a certain angle in the slots and abut against the stopping parts, and the first connecting part is rotated in the opposite direction in the process of detaching the first connecting part and the second connecting part, so that the protruding parts rotate a certain angle in the slots and are separated from the stopping parts, therefore, the assembly and detachment of the detachable connector can be conveniently and quickly realized, the connecting difficulty is reduced, and the assembly efficiency is improved. The application can dismantle convenient and stable in structure of connector.
According to the detachable connector of one embodiment of the present invention, the slot has a notch, the stopper is disposed in the slot near the notch, and the thickness of the stopper is smaller than the depth of the slot.
Optionally, the stop portion divides the slot into an inlet and a guide hole, the inlet having a width greater than a width of the guide hole; the protruding part comprises a first extending rod and a second extending rod, the extending directions of the first extending rod and the second extending rod are different, one end of the first extending rod is connected with the base body, the other end of the first extending rod is connected with the second extending rod, and when the second connecting part moves towards the position close to the first connecting part, the second extending rod enters the groove from the inlet; when the second connecting portion rotates relative to the first connecting portion, the first extension rod slides in the guide hole for a certain angle, and the second extension rod is abutted to the stopping portion.
Optionally, the cross-section of the second extension bar decreases away from the first extension bar.
Optionally, the first connecting portion is a cylinder, the top surface and the first bottom surface of the cylinder are respectively provided with a plurality of slots, and the slots on the top surface are centrosymmetric with the center of the top surface; the plurality of slots on the first bottom surface are centrosymmetric with the center of the circle of the first bottom surface; the two second connecting portions are respectively connected to the top surface and the first bottom surface of the first connecting portion.
Optionally, the cross section of each groove is a circular arc surface, the distance between two adjacent grooves on the same surface is equal, and the number of the grooves is even.
Optionally, the slot penetrates through a top surface and a first bottom surface of the cylinder, the slot of the stopper portion close to the top surface is a first slot, the slot of the stopper portion close to the first bottom surface is a second slot, the number of the first slot and the number of the second slot are both two, and the first slot and the second slot are arranged in the cylinder in a staggered manner along the circumferential direction; each second connecting part is provided with two convex parts.
A lattice unit cell according to an embodiment of the present invention includes: the second connecting part is a second connecting part in the detachable connector; and the two ends of each rod body are respectively connected with one second connecting part, and the rod bodies are fixedly connected through the second connecting parts.
According to the lattice unit cell provided by the embodiment of the invention, the lattice unit cell is formed by connecting a plurality of rod bodies, and two ends of each rod body are respectively connected with the second connecting part, so that on one hand, the plurality of rod bodies can be connected to form the lattice unit cell by the second connecting part, and the structural stability of the lattice unit cell is improved; on the other hand, in the subsequent process of connecting a plurality of lattice unit cells, the connection between the adjacent lattice unit cells can be realized through the cooperation of the second connecting part and other assemblies, the assembly and disassembly efficiency between the adjacent lattice unit cells is improved, and the connecting strength between the two adjacent lattice unit cells after connection is increased.
According to the lattice unit cell provided by the embodiment of the invention, the lattice unit cell is provided with six topological surfaces, and the six topological surfaces are intersected to form a cuboid; all the nodes formed by the intersection of every two rod bodies are positioned on the topological surfaces, the nodes are connected with the second connecting parts, the number of the nodes is even, a plurality of pairs of nodes are formed, at least three pairs of the nodes are positioned on six different topological surfaces, and the connecting line of each pair of the nodes is vertical to the surface where the node is positioned.
An assembled dot matrix structure according to an embodiment of the present invention includes: the first connecting part comprises a top surface and a first bottom surface, and a plurality of grooves are formed in the top surface and the first bottom surface respectively; a plurality of lattice unit cells, wherein the lattice unit cells are the lattice unit cells; the second connecting parts of two adjacent lattice unit cells are detachably connected with the same first connecting part respectively.
According to the assembled lattice structure provided by the embodiment of the invention, the lattice unit cell is adopted, the second connecting part is arranged on the lattice unit cell, the first connecting part and the second connecting part are matched to connect a plurality of lattice unit cells to form the assembled lattice structure, the assembly and disassembly efficiency of the assembled lattice structure is improved, and the structural stability and the structural strength of the assembled lattice structure can be improved after the plurality of lattice unit cells are connected.
Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a detachable connector according to an embodiment of the present invention when the detachable connector is to be connected.
Fig. 2 is a front view of a first connection portion according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second connection portion according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a first connection portion according to another embodiment of the invention.
Fig. 5 is a schematic structural diagram of a detachable connector according to another embodiment of the present invention when the detachable connector is to be connected.
Fig. 6 is a schematic structural diagram of a detachable connector according to another embodiment of the present invention after connection.
FIG. 7 is a schematic diagram of a lattice unit cell according to an embodiment of the present invention.
FIG. 8 is a schematic diagram of lattice unit cells and topological surfaces according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of an assembled lattice structure according to an embodiment of the present invention.
Reference numerals:
100. a detachable connector;
1. a first connection portion;
11. grooving;
111. a notch; 1111. an inlet; 1112. a guide hole;
112. a first slot;
113. a second slot;
12. a stop part;
13. a top surface;
14. a first bottom surface;
2. a second connecting portion;
21. a substrate;
22. a projection; 221. a first extension bar; 222. a second extension bar;
200. lattice unit cells; 210. a rod body; 220. rubbing surface; 230. a second bottom surface;
300. assembling the lattice structure.
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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being 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.
The detachable connection head 100 according to the embodiment of the present invention is described below with reference to the drawings attached to the specification.
A detachable connector 100 according to an embodiment of the present invention, as shown in fig. 1, includes: a first connection portion 1 and a second connection portion 2.
As shown in fig. 1, the first connecting portion 1 has a plurality of slots 11, the slots 11 are spaced apart from each other, and the slots 11 have stop portions 12. Here, each slot 11 of the first connecting portion 1 is provided with a stop portion 12 therein.
As shown in fig. 1, the second connecting portion 2 includes a base 21 and a plurality of protrusions 22, the base 21 is provided with the plurality of protrusions 22 at intervals, and the number of the protrusions 22 is the same as that of the slots 11.
The convex part 22 extends into the slot 11 when the second connecting part 2 moves towards the first connecting part 1; when the second connecting portion 2 rotates relative to the first connecting portion 1, the protrusion 22 rotates a certain angle in the slot 11 and the protrusion 22 is limited by the stop portion 12. That is, the stop portions 12 can limit the protruding portions 22 in the slots 11, and after the second connecting portion 2 rotates relative to the first connecting portion 1, all the protruding portions 22 are limited by the corresponding stop portions 12.
As can be seen from the above structure, in the detachable connector 100 according to the embodiment of the present invention, by forming a plurality of slots 11 on the first connecting portion 1, and forming the protrusion 22 on the second connecting portion 2 to match with the slots 11, since each slot 11 is provided with the stop portion 12, during the connection of the first connection portion 1 and the second connection portion 2, the plurality of protrusions 22 of the second connection portion 2 respectively extend into the corresponding slots 11, and at this time, the first connecting part 1 can be rotated manually, so that the plurality of protrusions 22 on the second connecting part 2 rotate in the corresponding slots 11 at a certain angle and abut against the stopping parts 12, thereby playing a role of fastening and locking the second connecting part 2, effectively preventing the protrusions 22 from being disengaged from the slots 11, therefore, the stop portion 12 can stably connect the first connecting portion 1 and the second connecting portion 2, and the structural stability of the detachable connector 100 after assembly is improved.
In the process of disassembling the first connecting part 1 and the second connecting part 2, the first connecting part 1 is rotated in the opposite direction, so that the plurality of convex parts 22 on the second connecting part 2 are simultaneously rotated by a certain angle in the corresponding slots 11 and separated from the stopping parts 12, the disassembling process of the detachable connector 100 is completed, the repeated utilization and replacement of the first connecting part 1 and the second connecting part 2 are facilitated, the assembly and disassembly of the detachable connector 100 can be conveniently and quickly realized, the connecting difficulty is reduced, and the assembling and disassembling efficiency is improved.
It can be understood that, the detachable connector 100 of the present application does not need to additionally increase the fastener for the bolt connection in the prior art, and only needs to perform simple rotation operation to realize the rapid assembly and disassembly between the two connecting portions, thereby greatly improving the connection convenience and connection speed of the detachable connector 100 and ensuring the stable structure after connection.
Optionally, as shown in fig. 1, two slots 11 are formed in the first connecting portion 1, stop portions 12 are respectively disposed in the two slots 11, and the two slots 11 are disposed in central symmetry with the axis of the first connecting portion 1 as a symmetry line.
Accordingly, as shown in fig. 1, the second connection portion 2 includes two protrusions 22, and the two protrusions 22 are arranged in central symmetry with the axis of the base 21 as a symmetry line. After the first connecting portion 1 is rotated by a certain angle, the two protrusions 22 on the second connecting portion 2 can be locked at the stop portion 12 at the same time, so as to achieve the fastening connection between the first connecting portion 1 and the second connecting portion 2, and after the first connecting portion 1 is rotated by a certain angle in the opposite direction, the two protrusions 22 on the second connecting portion 2 can move in the direction away from the stop portion 12 at the same time until the protrusions disengage from the stop portion 12, so as to achieve the detachment of the first connecting portion 1 and the second connecting portion 2.
For convenience of description, the structure shown in fig. 1 of the specification is taken as a standard, that is, the first connection part 1 is rotated clockwise to realize the fastening connection of the first connection part 1 and the second connection part 2, and the first connection part 1 is rotated counterclockwise to realize the detachment of the first connection part 1 and the second connection part 2.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between the described features, whether they are sequential or not.
In some embodiments of the invention, the angle of rotation of the lug 22 in the slot 11 is 15 to 35 degrees. The connecting piece is used for limiting the shape and the size of the slot 11, ensuring that a plurality of slots 11 are arranged on the first connecting part 1 at intervals, and ensuring that the plurality of slots 11 and the plurality of bulges 22 are matched for use so as to ensure the stable structure of the detachable connecting head 100 in the assembling process.
In some embodiments of the invention, the slot 11 has a notch 111 (the specific structure of the notch 111 can be seen in fig. 2), and the stop portion 12 is disposed in the slot 11 adjacent to the notch 111. The protrusion 22 on the second connecting portion 2 can extend into the slot 11 through the notch 111 and cooperate with the stop portion 12 to achieve connection or disconnection with the first connecting portion 1, thereby ensuring quick assembly and disassembly between the first connecting portion 1 and the second connecting portion 2.
Optionally, the thickness of the stop portion 12 is less than the depth of the slot 11. Because the stop portion 12 is disposed close to the notch 111, if the thickness of the stop portion 12 is greater than or equal to the depth of the slot 11, during the connection process between the first connection portion 1 and the second connection portion 2, the portion of the protrusion 22 will extend out of the first connection portion 1, which is not favorable for the matching connection between the subsequent lattice unit cells 200; on the other hand, under the effect of external force, easily cause the damage to the position stopping portion 12 and the protruding portion 22, shorten the life of the detachable connector 100, so set the thickness of the position stopping portion 12 to be less than the depth of the slot 11, under the premise of realizing the fastening connection of the first connecting portion 1 and the second connecting portion 2, the slot 11 can also play the role of protecting the position stopping portion 12 and the protruding portion 22, and then prolong the life of the detachable connector 100. In addition, the protrusion 22 can be ensured to have enough depth to extend into the slot 11 and enough matching surface between the protrusion 22 and the stop portion 12.
Alternatively, as shown in fig. 2, the stopper portion 12 divides the notch 111 into an inlet 1111 and a guide hole 1112, and the inlet 1111 has a width larger than that of the guide hole 1112. The inlet 1111 and the guide hole 1112 are mainly used here to cooperate with the first extension bar 221 and the second extension bar 222 mentioned below, and by setting the width of the inlet 1111 to be larger than the width of the guide hole 1112, the projection 22 can be projected from the inlet 1111 into the notch 111 and locked in the notch 111 in the extending direction of the guide hole 1112.
Alternatively, as shown in fig. 3, the protruding portion 22 includes a first extending rod 221 and a second extending rod 222, which extend in different directions, one end of the first extending rod 221 is connected to the base 21, the other end of the first extending rod 221 is connected to the second extending rod 222, and when the second connecting portion 2 moves toward the first connecting portion 1, the second extending rod 222 enters the slot 11 from the inlet 1111; when the second connecting portion 2 rotates relative to the first connecting portion 1, the first extension rod 221 slides in the guide hole 1112 by a certain angle, and the second extension rod 222 abuts against the stop portion 12. At this time, the protruding portion 22 is caught by the stop portion 12, so that the connected first connection portion 1 and second connection portion 2 do not move axially, thereby achieving the fastening connection of the first connection portion 1 and second connection portion 2.
Optionally, after the first connection portion 1 and the second connection portion 2 are fastened and connected, the first connection portion 1 is rotated counterclockwise, the first extension rod 221 slides in the guide hole 1112 by a certain angle and slides into the inlet 1111, at this time, when the second connection portion 2 moves towards the direction away from the first connection portion 1, the second extension rod 222 is moved out of the inlet 1111, so as to detach the first connection portion 1 and the second connection portion 2, and it is ensured that the detachable connector 100 is detached conveniently and maintained conveniently.
Alternatively, as shown in fig. 3, the cross-section of the second extension bar 222 gradually decreases away from the first extension bar 221. On one hand, in the process of connecting the first connecting part 1 and the second connecting part 2, the protruding part 22 can conveniently enter the slot 11 from the inlet 1111 quickly, and the second extension rod 222 is effectively prevented from being stuck at the inlet 1111, so that the quick assembly between the first connecting part 1 and the second connecting part 2 is realized; on the other hand, because the second extension rod 222 needs to abut against the stopper 12 during the connection process of the first connection portion 1 and the second connection portion 2, the second extension rod 222 with a smaller cross section can reduce the contact area with the stopper 12, thereby reducing the friction force, enabling the second extension rod 222 to swing flexibly relative to the stopper 12, further improving the assembly and disassembly speed, and realizing the rapid assembly and disassembly between the first connection portion 1 and the second connection portion 2.
Of course, in other examples of the present invention, the shape of the second extension rod 222 is not limited to the above arrangement, and those skilled in the art can change the shape and the cross-sectional area of the second extension rod 222 according to requirements in the practical application process to increase the contact area between the second extension rod 222 and the stopper 12, and further increase the friction force between the second extension rod 222 and the stopper 12, so as to ensure that the first connection portion 1 and the second connection portion 2 are connected tightly without loosening.
In some embodiments of the present invention, as shown in fig. 4 and fig. 5, the first connecting portion 1 is a cylinder, a top surface 13 and a first bottom surface 14 of the cylinder are respectively provided with a plurality of slots 11, and the plurality of slots 11 on the top surface 13 are centrosymmetric with a circle center of the top surface 13; the plurality of slots 11 on the first bottom surface 14 are centrosymmetric with respect to the center of the first bottom surface 14. That is to say, all be provided with a plurality of flutings 11 on the two relative planes of the first connecting portion 1 that is the cylinder, and a plurality of flutings 11 intervals set up, above setting can be connected same first connecting portion 1 with two second connecting portion 2 simultaneously, and realize the connection of dismantling between two second connecting portion 2.
Alternatively, two second connection parts 2 are connected to the top surface 13 and the first bottom surface 14 of the first connection part 1, respectively. With this fixed connection who realizes between two second connecting portion 2, and when needing to dismantle second connecting portion 2, only need anticlockwise rotation first connecting portion 1, can be with two second connecting portion 2 dismantlements of connecting on first connecting portion 1, the dismouting is quick, simple and convenient.
Optionally, the cross section of the slot 11 is a circular arc surface, the distance between two adjacent slots 11 on the same surface is equal, and the number of slots 11 is even. The grooving 11 that is the arc surface can guarantee that the bulge 22 rotates smoothly when the grooving 11 internal rotation, improve the efficiency of installing and removing of first connecting portion 1 and second connecting portion 2, and set up even number grooving 11 that the interval equals, connect second connecting portion 2 on first connecting portion 1 through grooving 11, can guarantee that the atress of second connecting portion 2 is even and stable in position, and then when connecting two second connecting portion 2 simultaneously on same first connecting portion 1, can guarantee that two second connecting portion 2 of relative connection connect stably, the concrete structure that two second connecting portion 2 connect simultaneously on first connecting portion 1 can see figure 6.
Alternatively, as shown in fig. 4, the slot 11 penetrates through the top surface 13 and the first bottom surface 14 of the cylinder, the slot 11 of the stop portion 12 close to the top surface 13 is a first slot 112, the slot 11 of the stop portion 12 close to the first bottom surface 14 is a second slot 113, each of the first slot 112 and the second slot 113 includes two slots, and the first slot 112 and the second slot 113 are arranged in the cylinder in a staggered manner along the circumferential direction. Here, the term "offset arrangement" means that neither the slot 11 formed in the top surface 13 nor the slot 11 formed in the first bottom surface 14 is connected to nor interferes with each other. Two first flutings 112 cooperate and are used for being connected with one of them second connecting portion 2, ensure that second connecting portion 2 is connected stably with first connecting portion 1, two second flutings 113 are used for being connected with another second connecting portion 2, realize another second connecting portion 2 and the fixed connection of first connecting portion 1, and then connect two second connecting portions 2 through a first connecting portion 1, and when one of them second connecting portion 2 or first connecting portion 1 damaged, need not to change whole detachable connector 100, only need to dismantle detachable connector 100, change the connecting portion that damages can, practice thrift use cost.
It can be understood that, as shown in fig. 4, the first connecting portion 1 is provided with a plurality of slots 11, wherein two of the slots are oppositely arranged to form a pair, and the pair of slots 11 is cooperatively used to realize the detachable connection between the first connecting portion 1 and the second connecting portion 2.
Alternatively, as shown in fig. 5, two projections 22 are provided on each second connection portion 2. Make every second connecting portion 2 all can be connected with the cooperation of first connecting portion 1, and then form two second connecting portions 2 through first connecting portion 1 and can dismantle the connection to improve the structural stability who connects back detachable connector 100.
The lattice unit cell 200 of an embodiment of the present invention is described below with reference to the drawings of the specification.
A lattice unit cell 200 according to an embodiment of the invention, as shown in fig. 7, includes: a second connecting portion 2 and a plurality of rod bodies 210.
The second connecting portion 2 is the second connecting portion 2 of the detachable connector 100.
As shown in fig. 7, two ends of the rod body 210 are respectively connected to a second connecting portion 2, and different rod bodies 210 are fixedly connected to each other through the second connecting portions 2.
As can be seen from the above structure, in the lattice unit cell 200 according to the embodiment of the present invention, the second connection portions 2 in the detachable connectors 100 are respectively disposed at the two ends of each rod 210, and on one hand, the second connection portions 2 can function to connect the adjacent rods 210, and connect the rods 210 to form one lattice unit cell 200, so as to improve the structural stability of the single lattice unit cell 200; on the other hand, the second connection portion 2 is matched with other components (such as the aforementioned first connection portion 1) in the process of connecting the subsequent lattice unit cells 200 to improve the connection efficiency between the lattice unit cells 200, increase the connection strength between two adjacent lattice unit cells 200 after connection, and facilitate the detachment between the adjacent lattice unit cells 200.
It should be noted that the second connecting portions 2 of the present application are disposed at two ends of the plurality of rods 210, and can be prepared together with the lattice unit cell 200, and compared with a complex lattice structure, the lattice unit cell 200 of the present application has a structure that is relatively easy to prepare, thereby improving the production efficiency of the lattice unit cell 200.
Alternatively, the lattice unit cell 200 is manufactured by an integral injection molding process. The integrated injection molding process effectively simplifies the assembly process of the lattice unit cell 200, saves the machining processes of welding, polishing, grinding and the like in the early stage, improves the production efficiency and realizes low-cost mass production.
In some embodiments of the present invention, as shown in FIG. 8, the lattice unit cell 200 has six topological faces 220, and the six topological faces 220 intersect to form a cuboid. Three topological surfaces 220 are shown, and two topological surfaces 220 arranged opposite to each other form a pair, which is divided into three pairs.
Optionally, all the nodes formed by intersecting the rod bodies 210 in pairs are located on the topology surfaces 220, the nodes are connected with the second connecting parts 2, the number of the nodes is even, multiple pairs of the nodes are formed, at least three pairs of the nodes are located on six different topology surfaces 220, and a connecting line of each pair of the nodes is perpendicular to a surface where the node is located. Through the arrangement, one lattice unit cell 200 can be simultaneously connected with the lattice unit cells 200 in the upper direction, the lower direction, the left direction, the right direction and the front direction, so that the assembling lattice structure 300 mentioned below is conveniently assembled, and the assembling efficiency is improved.
Alternatively, as shown in fig. 8, the rods 210 are enclosed to form two rectangular pyramids, the two rectangular pyramids share the same second bottom surface 230, and the two rectangular pyramids are symmetrically arranged with the second bottom surface 230 as a symmetry plane. Two rectangular pyramid symmetric arrangement form a dot matrix unit 200, and at the in-process of actual production, because of two rectangular pyramids are symmetric arrangement, the body of rod 210 structure that the longitudinal symmetry set up promptly equals, the mass production of being convenient for, and need not to consider the direction of connection at the in-process that a plurality of dot matrix unit 200 are connected, reduce the operation degree of difficulty, improve production efficiency.
It should be noted that, in some specific examples, two regular rectangular pyramids formed by enclosing a plurality of rods 210 are symmetrically arranged with the second bottom surface 230 as a symmetry plane to form an octahedral lattice unit cell, where the octahedral lattice unit cell includes six connection points, two oppositely disposed connection points form one pair, and are divided into three pairs, and the cross sections formed by the protrusions 22 on each pair of connection points form 90 ° with each other, that is, the two oppositely disposed connection points, and when the cross section formed by the two protrusions 22 on one of the connection points is parallel to the horizontal plane, the cross section formed by the two protrusions 22 on the other connection point must be perpendicular to the horizontal plane, so that one of the lattice unit cells 200 is connected to the adjacent lattice unit cell 200 through the first connection portion 1, thereby improving the connection efficiency of the adjacent lattice units 200 and facilitating the detachment.
Optionally, the second connection parts 2 on each lattice unit cell 200 appear in pairs, that is, the number of the second connection parts 2 on each lattice unit cell 200 is even, and the principle of symmetry is followed, so that on one hand, the situation that only one kind of lattice unit cells 200 is needed to be produced in the production and manufacturing process can be ensured according to the principle of symmetry, and the production efficiency is improved; on the other hand, in the process of connection, a plurality of lattice unit cells 200 can be matched for use, so that the connection is convenient.
Alternatively, the rod body 210 between each node may be a straight rod, a bent rod, or a curved rod, which is not limited herein. The mechanical properties of the rods 210 of different shapes are different, and in the actual use process, a technician can set the rods 210 of different shapes according to the field of use of the single cell lattice 200.
An assembled lattice structure 300 according to an embodiment of the invention is described below with reference to the drawings of the specification.
An assembled dot matrix structure 300 according to an embodiment of the present invention, as shown in fig. 9, includes: a first connection part 1 and a plurality of lattice unit cells 200.
The first connecting portion 1 includes the top surface 13 and the first bottom surface 14, and the top surface 13 and the first bottom surface 14 are respectively provided with a plurality of slots 11.
Lattice unit 200 is lattice unit 200 as described above.
The second connection parts 2 of two adjacent lattice unit cells 200 are detachably connected to the same first connection part 1 (the specific structure of the first connection part 1 and the second connection part 2 can be seen in fig. 5).
As can be seen from the above structure, in the assembled lattice structure 300 according to the embodiment of the present invention, by using the lattice unit cell 200 provided with the second connection portion 2, only a plurality of lattice unit cells 200 and a plurality of first connection portions 1 need to be produced in the process of producing and manufacturing the assembled lattice structure 300, so that the production efficiency of the assembled lattice structure 300 is improved, and the subsequent connection of adjacent lattice unit cells 200 is facilitated, thereby realizing mass production; in the process of forming the assembled lattice structure 300, the rapid assembly and disassembly of the assembled lattice structure 300 can be realized only by simply rotating the plurality of first connecting portions 1, thereby realizing the low-cost mass production of the ultra-light lattice structure and ensuring the structural strength of the assembled lattice structure 300.
It can be understood that, when the detachable connector 100 of the embodiment of the invention is used for assembling the lattice structure 300, since the cross sections formed by the protrusions 22 corresponding to different connection points of the lattice unit cells 200 are different, there is no fear of connection failure caused by rotation of the lattice unit cells 200 in the combined structure of a plurality of lattice unit cells 200, and the assembled lattice structure 300 in this application can only be disassembled by rotating the first connection portion 1.
Optionally, the ends of the connected lattice unit cells 200 are coplanar. The assembled lattice structure 300 is connected between two panels by coplanar end faces to form an independent structure, thereby greatly enhancing the mechanical properties of the structure and further realizing light weight.
Alternatively, the first connection portion 1 is made by an integral injection molding process. Thereby improving the productivity of the assembled lattice structure 300 and achieving low-cost mass production.
It should be noted that the assembled lattice structure 300 of the present application can be applied to the fields of aerospace manufacturing technology, automobile manufacturing technology, military industry, and the like.
The following describes specific structures of the detachable connector 100, the lattice unit cell 200, and the assembled lattice structure 300 according to the embodiments of the present invention with reference to the drawings. The embodiments of the present invention may be all embodiments obtained by combining the foregoing technical solutions, and are not limited to the following specific embodiments, which fall within the scope of the present invention.
Example 1
A detachable connection head 100, as shown in fig. 1, comprising: a first connection portion 1 and a second connection portion 2.
As shown in fig. 1, two slots 11 are formed in the first connecting portion 1, the two slots 11 are spaced apart from each other, and a stop portion 12 is disposed in each slot 11.
As shown in fig. 1, the second connecting portion 2 includes a base 21 and two protrusions 22, and the base 21 is provided with the two protrusions 22 at intervals.
The convex part 22 extends into the slot 11 when the second connecting part 2 moves towards the first connecting part 1; when the second connecting portion 2 rotates relative to the first connecting portion 1, the protrusion 22 rotates a certain angle in the slot 11 and the protrusion 22 is limited by the stop portion 12.
Example 2
A detachable connector 100, which is different from embodiment 1 in that, on the basis of embodiment 1, a slot 11 has a notch 111 (the specific structure of the notch 111 can be seen in fig. 2), a stop portion 12 is disposed in the slot 11 near the notch 111, and the thickness of the stop portion 12 is smaller than the depth of the slot 11.
Example 3
Unlike embodiment 2, in a detachable connector 100 of an embodiment 2, as shown in fig. 2, a stopper 12 divides a notch 111 into an inlet 1111 and a guide hole 1112, and the width of the inlet 1111 is larger than that of the guide hole 1112.
As shown in fig. 3, the protruding portion 22 includes a first extending rod 221 and a second extending rod 222, which extend in different directions, one end of the first extending rod 221 is connected to the base 21, the other end of the first extending rod 221 is connected to the second extending rod 222, and when the second connecting portion 2 moves toward the first connecting portion 1, the second extending rod 222 enters the slot 11 from the inlet 1111.
When the second connecting portion 2 rotates relative to the first connecting portion 1, the first extension rod 221 slides in the guide hole 1112 by a certain angle, and the second extension rod 222 abuts against the stop portion 12.
Example 4
A detachable connector 100, different from embodiment 1, in embodiment 1, as shown in fig. 4 and 5, a first connecting portion 1 is a cylinder, a top surface 13 and a first bottom surface 14 of the cylinder are respectively provided with two slots 11, and the two slots 11 on the top surface 13 are centrosymmetric with a circle center of the top surface 13; the two slots 11 on the first bottom surface 14 are in central symmetry with the center of the first bottom surface 14.
The two second connection parts 2 are connected to the top surface 13 and the first bottom surface 14 of the first connection part 1, respectively.
As shown in fig. 4, the slot 11 penetrates through the top surface 13 and the first bottom surface 14 of the cylinder, the slot 11 of the stop portion 12 close to the top surface 13 is a first slot 112, the slot 11 of the stop portion 12 close to the first bottom surface 14 is a second slot 113, both the first slot 112 and the second slot 113 include two slots, and the first slot 112 and the second slot 113 are arranged in the cylinder in a staggered manner along the circumferential direction.
Example 5
A lattice unit cell 200, as shown in fig. 7, comprising: a second connecting portion 2 and a plurality of rod bodies 210.
Wherein, the second connecting portion 2 is the second connecting portion 2 in the detachable connector 100 of embodiment 1.
As shown in fig. 7, two ends of the rod body 210 are respectively connected to a second connecting portion 2, and different rod bodies 210 are fixedly connected to each other through the second connecting portions 2.
Example 6
An assembled lattice structure 300, as shown in fig. 9, comprising: a first connection part 1 and a plurality of lattice cells 200.
Wherein, the first connecting portion 1 is the first connecting portion 1 in the detachable connector 100 of embodiment 4.
As shown in fig. 9, the lattice unit cell 200 is the lattice unit cell 200 in example 5.
The second connection parts 2 of two adjacent lattice unit cells 200 are detachably connected to the same first connection part 1 (the specific structure of the first connection part 1 and the second connection part 2 can be seen in fig. 5).
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Two slots 11 and two protrusions 22 are shown in fig. 1 to cooperate for illustrative purposes, but it will be apparent to those skilled in the art after reading the above technical solutions that the solution can be applied to three or more slots 11 and protrusions 22, which also falls within the protection scope of the present invention.
The detachable connection head 100, the lattice unit 200, and other components of the assembled lattice structure 300 according to the embodiment of the present invention, such as the injection molding process and operation of the lattice unit 200, are well known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., 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 do not necessarily 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A detachable connector, comprising:
the first connecting part is provided with a plurality of slots, the slots are arranged at intervals, and stop parts are arranged in the slots;
the second connecting part comprises a base body and a plurality of protruding parts, the base body is provided with the plurality of protruding parts at intervals, and the number of the protruding parts is the same as that of the grooves;
the protruding part extends into the slot when the second connecting part moves towards the position close to the first connecting part; when the second connecting part rotates relative to the first connecting part, the protruding part rotates for a certain angle in the slot and is limited by the stopping part.
2. The detachable connector of claim 1, wherein the slot has a notch, the stop portion is disposed in the slot adjacent to the notch, and the thickness of the stop portion is smaller than the depth of the slot.
3. The detachable connector according to claim 2, wherein the stop portion divides the slot into an entrance and a guide hole, the entrance having a width greater than a width of the guide hole;
the protruding part comprises a first extending rod and a second extending rod, the extending directions of the first extending rod and the second extending rod are different, one end of the first extending rod is connected with the base body, the other end of the first extending rod is connected with the second extending rod, and when the second connecting part moves towards the position close to the first connecting part, the second extending rod enters the groove from the inlet;
when the second connecting portion rotates relative to the first connecting portion, the first extension rod slides in the guide hole for a certain angle, and the second extension rod is abutted to the stopping portion.
4. The detachable connector of claim 3, wherein the cross-section of the second extension rod decreases away from the first extension rod.
5. The detachable connector according to any one of claims 1 to 4, wherein the first connecting portion is a cylinder, the top surface and the first bottom surface of the cylinder are respectively provided with a plurality of slots, and the plurality of slots on the top surface are centrosymmetric with a center of the top surface; the plurality of slots on the first bottom surface are centrosymmetric with the center of the circle of the first bottom surface;
the two second connecting portions are respectively connected to the top surface and the first bottom surface of the first connecting portion.
6. The detachable connector according to claim 5, wherein the cross section of the slot is a circular arc surface, the distance between two adjacent slots on the same surface is equal, and the number of slots is even.
7. The detachable connector of claim 6, wherein the slot extends through a top surface and a first bottom surface of the cylindrical body, the slot of the stopper portion adjacent to the top surface is a first slot, the slot of the stopper portion adjacent to the first bottom surface is a second slot, the first slot and the second slot are both two slots, and the first slot and the second slot are circumferentially staggered in the cylindrical body;
and each second connecting part is provided with two convex parts.
8. A lattice unit cell, comprising:
a second connecting part in the detachable connector according to any one of claims 5 to 7;
and the two ends of each rod body are respectively connected with one second connecting part, and the rod bodies are fixedly connected through the second connecting parts.
9. The lattice unit cell of claim 8, wherein said lattice unit cell has six topological faces that intersect to form a cuboid; all the nodes formed by the intersection of every two rod bodies are positioned on the topological surfaces, the nodes are connected with the second connecting parts, the number of the nodes is even, a plurality of pairs of nodes are formed, at least three pairs of the nodes are positioned on six different topological surfaces, and the connecting line of each pair of the nodes is vertical to the surface where the node is positioned.
10. An assembled lattice structure, comprising:
a first connection portion in the detachable connector according to any one of claims 5 to 7;
a plurality of lattice unit cells, the lattice unit cells being the lattice unit cells of claim 8 or 9; the second connecting parts of two adjacent lattice unit cells are detachably connected with the same first connecting part respectively.
CN202110124945.4A 2021-01-29 2021-01-29 Detachable connector, lattice unit cell and assembled lattice structure Pending CN114810775A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200742807A (en) * 2006-05-15 2007-11-16 bing-song Chen A quick mounting and dismounting column structure
CN201420733Y (en) * 2009-04-03 2010-03-10 苏州爱博展示器材有限公司 Connecting structure for pipe fittings used for building frame body
CN103827408A (en) * 2011-10-10 2014-05-28 莫达私人有限公司 A connector system for structural framework
CN105747697A (en) * 2016-05-12 2016-07-13 深圳壹号柜科技股份有限公司 Ultra-thin wall-hanging type sample cabinet
CN105782682A (en) * 2016-05-23 2016-07-20 深圳壹号柜科技股份有限公司 Safe wall-mounted sample cabinet
US20170043883A1 (en) * 2015-05-07 2017-02-16 Massachusetts Institute Of Technology Digital Material Assembly By Passive Means And Modular Isotropic Lattice Extruder System (MILES)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200742807A (en) * 2006-05-15 2007-11-16 bing-song Chen A quick mounting and dismounting column structure
CN201420733Y (en) * 2009-04-03 2010-03-10 苏州爱博展示器材有限公司 Connecting structure for pipe fittings used for building frame body
CN103827408A (en) * 2011-10-10 2014-05-28 莫达私人有限公司 A connector system for structural framework
US20170043883A1 (en) * 2015-05-07 2017-02-16 Massachusetts Institute Of Technology Digital Material Assembly By Passive Means And Modular Isotropic Lattice Extruder System (MILES)
CN105747697A (en) * 2016-05-12 2016-07-13 深圳壹号柜科技股份有限公司 Ultra-thin wall-hanging type sample cabinet
CN105782682A (en) * 2016-05-23 2016-07-20 深圳壹号柜科技股份有限公司 Safe wall-mounted sample cabinet

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